CN109403668B - Truss and method for constructing multi-form exhibition stand - Google Patents
Truss and method for constructing multi-form exhibition stand Download PDFInfo
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- CN109403668B CN109403668B CN201811497913.3A CN201811497913A CN109403668B CN 109403668 B CN109403668 B CN 109403668B CN 201811497913 A CN201811497913 A CN 201811497913A CN 109403668 B CN109403668 B CN 109403668B
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- 238000000034 method Methods 0.000 title claims description 10
- 238000003466 welding Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 13
- 239000002699 waste material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a building truss of a multi-form exhibition stand, which comprises a folding cross beam, wherein end joints are arranged at two ends of the folding cross beam, the end joints are connected with one side face of a connecting square head, the bottom face of the connecting square head is connected with a folding upright post, and the bottom of the folding upright post is connected with a foot margin connecting piece; the folding cross beam comprises a plurality of unit components extending towards two ends; the unit component comprises a cross rod, a vertical connecting rod and a hinged expansion bolt, wherein the upper end of the vertical connecting rod passes through one end of the two cross rods, and the top of the vertical connecting rod is fastened by the hinged expansion bolt; the lower ends of the vertical connecting rods penetrate through one ends of the two cross bars, and the bottoms of the vertical connecting rods are fastened by hinged expansion bolts; the two ends of the folding cross beam are terminated by vertical connecting rods. The truss for constructing the multi-form exhibition stand is more diversified, economical, reasonable and simple through structural optimization under the limited change form of the alloy material; the truss for constructing the multi-form exhibition stand has the characteristics of simple structure, low cost and easiness in manufacturing.
Description
Technical Field
The invention belongs to the technical field of trusses, and relates to a truss for constructing a multi-form exhibition stand and a construction method thereof.
Background
Along with the continuous increase of the number of large-scale exhibitions, the truss technology is actively applied to the construction of the display space of industrial products, and the traditional truss structure has the defects of large display volume, high space occupancy rate, complicated installation and connection process, single form, material waste and the like, thereby bringing great resource waste and fund waste to exhibitions.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a truss for constructing a multi-form exhibition stand and a construction method thereof.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the utility model provides a building truss of multi-form stand, includes folding crossbeam, and folding crossbeam's both ends are equipped with the end connection, and the end connection links to each other with one side of connecting the square head, and the bottom surface of connecting the square head is connected with folding stand, and folding stand's bottom is connected with the lower margin connecting piece.
Further, the folding cross beam comprises a plurality of unit members extending towards two ends;
the unit component comprises a cross rod, a vertical connecting rod and a hinged expansion bolt, wherein the upper end of the vertical connecting rod passes through one end of the two cross rods, and the top of the vertical connecting rod is fastened by the hinged expansion bolt; the lower ends of the vertical connecting rods penetrate through one ends of the two cross bars, and the bottoms of the vertical connecting rods are fastened by hinged expansion bolts;
the two ends of the folding cross beam are terminated by vertical connecting rods.
Further, first connecting holes are respectively arranged at four corners of the end connector; second connecting holes are respectively arranged at four corners of the top of the folding upright post;
the connecting square head is a square frame formed by welding 12 unit cylinders, and each unit cylinder at the connecting position is provided with a round surface;
a bevel gear expansion bolt is arranged in the unit cylinder, and extends out from one side surface of the square frame to be connected with a first connecting hole of the end joint; the bevel gear expansion bolts extend out of the bottom of the cube frame and are connected with the second connecting holes at the top of the folding upright post.
Further, the bevel gear expansion bolt comprises an expansion head, a first screw is arranged at one end of the expansion head, a first bevel gear is arranged on the first screw, and the rotation of the first bevel gear can drive the rotation of the first bevel gear, so that the opening and closing of the expansion head are controlled.
Further, the folding upright post comprises four vertical upright posts, a plurality of groups of hinge edges are arranged between the vertical upright posts, and each group of hinge edges comprises two upper layer hinge edges which are parallel to each other and two lower layer hinge edges which are parallel to each other.
Further, third connecting holes are formed in four corners of the bottom of the folding upright post;
the foundation connecting piece comprises a foundation plate, and four inner foundation bolts are arranged on the foundation plate and are used for being fixedly connected with the third connecting holes; the skirting board is also provided with an outer side skirting bolt for fixing the skirting connecting piece on the ground.
Further, the hinged expansion bolt comprises a second screw, a screwing head is arranged at the head of the second screw, an expansion sleeve is arranged at the upper periphery of the second screw, and an expansion clamping head is arranged in the expansion sleeve; when the screwing head is rotated, the expansion sleeve can be contacted with the screwing head, and the expansion chuck stretches out.
Further, through holes for hanging ornaments are formed in the cross beams of the unit components, and semicircular grooves are formed in the edges of the cross beams.
Further, a round hole for limiting and preventing the dislocation of the tool is formed in the side face of the connecting square head, and the diameter of the round hole is the same as the maximum diameter of the first bevel gear.
A construction method for a truss of a multi-form exhibition stand comprises the following steps:
adjusting the width and angle of the folding cross beam, loosening the hinged expansion bolts, and tightening the hinged expansion bolts when the folding cross beam presents a preset shape;
welding upper end joints at two ends of the folding cross beam;
aligning a first connecting hole of the end joint with a bevel gear expansion bolt extending out of one side surface of the connecting square head, and screwing the bevel gear expansion bolt;
adjusting the folding upright post to a preset height;
aligning a second connecting hole at the top of the folding upright post with a bevel gear expansion bolt extending out of the bottom of the connecting square head, and screwing the bevel gear expansion bolt;
aligning the third connecting holes at the bottom of the folding upright post with four inner side foundation bolts on the skirting board, and screwing and fixing the third connecting holes;
four outer and inner foundation bolts on the baseboard are drilled into the ground and screwed down for fixation.
Compared with the prior art, the invention has the following beneficial effects:
according to the multi-form exhibition stand, the truss is built, and through improvement of the truss connection mode, expansion bolts driven by bevel gears are combined with the connection square heads, so that complicated screw and nut meshing is not needed, the connection strength is ensured, the installation time is saved, and the time cost is saved; the upright post can be folded structurally under the connection of the hinge piece, so that the space occupation rate of the truss in the storage and transportation processes is reduced, and the economic cost is saved; the folding cross beam can realize the change and the combination of multiple angles, and can be combined into various display spaces only by using the same structural members, so that the interest of the display spaces is enhanced. The truss for constructing the multi-form exhibition stand is more diversified, economical, reasonable and simple through structural optimization under the limited change form of the alloy material; the truss for constructing the multi-form exhibition stand has the characteristics of simple structure, low cost and easiness in manufacturing.
The construction method of the truss for the multi-form exhibition stand is simple and convenient to construct, flexible and adjustable in construction process, and capable of constructing exhibition stands with different preset forms.
Drawings
FIG. 1 is a schematic view of the overall construction of a truss set up for a multi-format display of the present invention;
FIG. 2 is a schematic view of the structure of a folding beam in a building truss of the multi-format display of the present invention; .
FIG. 3 is a schematic view of the structure of a connection square head in the construction truss of the multi-form display of the present invention;
FIG. 4 is a schematic view of the bevel gear driven expansion bolts in the construction truss of the multi-format display of the present invention;
FIG. 5 is a schematic view of the structure of a folding square column in the building truss of the multi-format display of the present invention;
FIG. 6 is a schematic view of the structure of the hinged expansion bolts in the building truss of the multi-format display of the present invention;
FIG. 7 is a schematic view of the structure of the multi-format display of the present invention with the hinged expansion bolts in the truss set up;
figure 8 is a schematic view of the connection structure of the foundation in the truss of the multi-format display of the present invention.
Wherein: 1-folding a cross beam; 2-connecting square heads; 3-folding the upright post; 4-anchor connectors; 1-1-folding a cross beam; 1-2-vertical connecting rods; 1-3-hinging expansion bolts; 1-4-end fitting; 2-1-unit cylinders; 2-2-round surface; 2-3-through holes; 2-4-bevel gear expansion bolts; 2-4-1-expansion head; 2-4-2-first screw; 2-4-3-first bevel gear; 5-tool; 5-1-handle; 5-2-second bevel gear; 3-1-vertical columns; 3-2-upper hinge edges; 3-3-lower hinge edges; 1-3-1-screwing head; 1-3-2-second screw, 1-3-3-expansion sleeve; 1-3-4-expansion chuck; 4-1-skirting board; 4-2-inboard anchor bolts; 4-3-outboard anchor bolts.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1, fig. 1 is a schematic diagram of the overall structure of a building truss of the multi-form exhibition stand, wherein the building truss of the multi-form exhibition stand comprises a folding cross beam 1, a connecting square head 2, a folding upright post 3 and a foundation connecting piece 4; the folding cross beam 1 is composed of an upper layer and a lower layer, the folding cross beam 1 is connected through a vertical connecting rod 1-2, the connecting rod 1-2 is fastened with the folding cross beam 1-1 through expansion bolts 1-3 at two ends, the folding cross beam 1 uses the connecting rod as a rotation center to realize angle change, the connection between the folding cross beam 1 and the connection square head 2 is connected with the connection square head 2 through an end joint of the folding cross beam 1, the connection square head 2 is connected with the folding upright post 3 again, the folding upright post 3 is composed of a vertical upright post and a hinging edge, the hinging edge moves in a certain range by taking the vertical upright post as the rotation center, the folding upright post 3 is folded and deformed through tension, the folding upright post 3 and a foundation connecting piece 4 are fastened and connected from bottom to top through an inner side bolt, and the foundation connecting piece 4 and the ground are fastened and connected from top to bottom through an outer side bolt.
Referring to fig. 2, fig. 2 is a schematic structural view of a folding beam in a building truss of the multi-form display of the present invention; the folding cross beam 1 consists of a unit component 1-1, a vertical connecting rod 1-2 and a hinged expansion bolt 1-3, and two ends of the folding cross beam 1 are respectively welded with an end joint 2; the center of the unit component 1-1 is provided with a through hole, the edge of the unit component is provided with a semicircular groove, the unit component 1-1 is connected with the hinged expansion bolt 1-3 through the vertical connecting rod 1-2, the hinged expansion bolt 1-3 is fastened with the vertical connecting rod, and four corners of the end joint 1-4 are respectively provided with a first connecting hole. The beam of the folding beam 1 is provided with a round hole, and both ends of the folding beam are provided with semicircular curved grooves, so that additional equipment such as light equipment, exhibition hanging cloth and other light fittings can be mounted when the display space is built.
Referring to fig. 3, fig. 3 is a schematic structural view of a connection square head in a construction truss of the multi-form display of the present invention; the connecting square head 2 is welded and connected by a unit cylinder 2-1, each corner is provided with a round surface 2-2 in three directions, a through hole 2-3 is arranged on the surface of the unit cylinder 2-1, and an expansion bolt 2-4 driven by a bevel gear is arranged in the connecting square head 2; the round hole 2-3 is arranged on the side face of the square connecting head 2, the diameter of the round hole is the same as the maximum diameter of the first bevel gear, and an external tool can extend into the round hole to prevent the tool from being misplaced through edge limiting.
The expansion bolt 2-4 in the connecting square head 2 is penetrated by the first screw 2-4-2, the first screw 2-4-2 is connected with the first bevel gear, the first screw is driven to rotate and stretch by the external tool 5 to engage with the bevel gear, and the head 2-4-1 with inclination is driven to stretch out and expand the expansion blade to be fastened with the adjacent hole site.
Referring to fig. 4, fig. 4 is a schematic view of a bevel gear driven expansion bolt structure in a construction truss of the multi-form display stand of the present invention; the expansion bolt 2-4 driven by the gear consists of an expansion head 2-4-1, a first screw 2-4-2 and a first bevel gear 2-4-3; when the expansion head is operated, the tool 5 is used, the handle 5-1 is screwed, the second bevel gear 5-2 rotates, the second bevel gear 5-2 is meshed with the first bevel gear 2-4-3 to drive the first screw 2-4-2 to rotate, and the expansion head 2-4-1 is expanded.
Referring to fig. 5, fig. 5 is a schematic structural view of a folding square column in a building truss of the multi-form display of the present invention; the folding upright 3 is provided with four vertical upright 3-1, the vertical upright 3-1 is connected through hinge edges, each group of hinge edges consists of two opposite edges, which are respectively an upper layer hinge edge 3-2, and the folding upright 3 of the lower layer hinge edge 3-3 is connected with an expansion bolt 2-4 driven by a bevel gear of the connecting square head 2 through an opening on the vertical upright 3-1; the hinge edge is provided with a transverse groove, and the environment-friendly decorative material can be mounted in a jogged mode.
Referring to fig. 6 and 7, fig. 6 and 7 are schematic views of the structure of the multi-form display of the present invention in unexpanded and expanded, respectively, hinged expansion bolts in the building truss; the hinged expansion bolt 1-3 consists of a screwing head 1-3-1, a second screw 1-3-2, an expansion sleeve 1-3-3 and an expansion chuck 1-3-4; the hinged expansion bolt 1-3 is placed into the hinged hole of the folding cross beam 1, the second screw 1-3-2 is driven to rotate by screwing the first screw 1-3-1, the expansion sleeve 1-3-3 is expanded, and meanwhile the internal expansion clamping head 1-3-4 extends out, so that the fastening effect is achieved.
Referring to fig. 8, fig. 8 is a schematic view of a foundation connection structure in a construction truss of the multi-form stand of the present invention; the foundation connecting piece 4 consists of a foundation plate 4-1, an inner foundation bolt 4-2 and an outer foundation bolt 4-3, wherein the foundation plate 4-1 is connected with the ground from top to bottom by the outer foundation bolt 4-3, and the inner foundation bolt 4-2 penetrates through the foundation plate 4-1 from bottom to top to be connected with a bottom connecting hole of the folding upright post 3, so that the foundation plate 4-1, the folding upright post 3 and the ground are fastened.
The construction method of the truss for constructing the multi-form exhibition stand comprises the following operations:
adjusting the width and angle of the folding cross beam 1, loosening the hinged expansion bolts 1-3, and tightening the hinged expansion bolts 1-3 when the folding cross beam 1 takes on a preset shape;
welding upper end joints 1-4 at two ends of the folding cross beam 1;
aligning the first connection hole of the end fitting 1-4 with the bevel gear expansion bolt 2-4 extended from one side surface of the connection square head 2, and tightening the bevel gear expansion bolt 2-4;
adjusting the folding upright 3 to a preset height;
aligning a second connecting hole at the top of the folding upright post 3 with a bevel gear expansion bolt 2-4 extending out of the bottom of the connecting square head, and screwing the bevel gear expansion bolt 2-4;
aligning the third connecting holes at the bottom of the folding upright post 3 with four inner side foundation bolts 4-2 on the skirting board 4-1, and screwing and fixing;
four outer and inner foundation bolts 4-3 on the baseboard 4-1 are drilled into the ground and are screwed and fixed.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (5)
1. The utility model provides a building truss of multi-form stand, its characterized in that includes folding crossbeam (1), and folding crossbeam (1) both ends are equipped with end connection (1-4), and end connection (1-4) link to each other with one side of connection square head (2), and the bottom surface of connection square head (2) is connected with folding stand (3), and folding stand (3) bottom is connected with lower margin connecting piece (4), and folding crossbeam (1) include a plurality of unit component (1-1) that extend to both ends;
the unit component (1-1) comprises a cross rod, a vertical connecting rod (1-2) and a hinged expansion bolt (1-3), wherein the upper ends of the vertical connecting rod (1-2) penetrate through one ends of the two cross rods, and the tops of the two cross rods are fastened by the hinged expansion bolt (1-3); the lower ends of the vertical connecting rods (1-2) penetrate through one ends of the two cross bars, and the bottoms of the vertical connecting rods are fastened by hinged expansion bolts (1-3);
two ends of the folding cross beam (1) are terminated at vertical connecting rods (1-2), and four corners of the end joint (1-4) are respectively provided with a first connecting hole; second connecting holes are respectively arranged at four corners of the top of the folding upright post (3);
the connecting square head (2) is a square frame formed by welding 12 unit cylinders (2-1), and each unit cylinder (2-1) at the connecting position is provided with a round surface (2-2);
a bevel gear expansion bolt (2-4) is arranged in the unit cylinder (2-1), and the bevel gear expansion bolt (2-4) extends out of one side surface of the square frame and is connected with a first connecting hole of the end joint (1-4); the bevel gear expansion bolt (2-4) extends out of the bottom of the square frame and is connected with a second connecting hole at the top of the folding upright post (3), the bevel gear expansion bolt (2-4) comprises an expansion head (2-4-1), a first screw (2-4-2) is arranged at one end of the expansion head (2-4-1), a first bevel gear (2-4-3) is arranged on the first screw (2-4-2), the second bevel gear (5-2) is driven to rotate by screwing the handle (5-1), the second bevel gear (5-2) is meshed with the first bevel gear (2-4-3), and the rotation of the first bevel gear (2-4-3) can drive the rotation of the first screw (2-4-2), so that the opening and closing of the expansion head (2-4-1) are controlled; the hinged expansion bolt (1-3) comprises a second screw (1-3-2), a screwing head (1-3-1) is arranged at the head of the second screw (1-3-2), an expansion sleeve (1-3-3) is arranged at the upper periphery of the second screw (1-3-2), and an expansion clamping head (1-3-4) is arranged in the expansion sleeve (1-3-3); when the screwing head (1-3-1) is rotated, the expansion sleeve (1-3-3) can be in contact with the screwing head (1-3-1), at the moment, the expansion clamping head (1-3-4) stretches out, the folding upright post (3) comprises four vertical upright posts (3-1), a plurality of groups of hinging edges are arranged between the vertical upright posts (3-1), each group of hinging edges comprises two upper hinging edges (3-2) which are parallel to each other and two lower hinging edges (3-3) which are parallel to each other, transverse grooves are formed in the hinging edges, and the environment-friendly decorative material is mounted in a jogged mode.
2. The truss for constructing the multi-form exhibition stand according to claim 1, wherein third connecting holes are formed in four corners of the bottom of the folding upright (3);
the foundation connecting piece (4) comprises a foundation plate (4-1), and four inner side foundation bolts (4-2) are arranged on the foundation plate (4-1) and are used for being connected and fixed with a third connecting hole; the skirting board (4-1) is also provided with an outer side anchor bolt (4-3) for fixing the anchor connecting piece (4) on the ground.
3. A building truss for a multi-format display according to claim 2, characterized in that the cross beams of the unit members (1-1) are provided with through holes for hanging ornaments, the edges of the cross beams being semicircular grooves.
4. The truss for constructing the multi-form exhibition stand according to claim 2, wherein the side surface of the connecting square head (2) is provided with a circular hole (2-3) for limiting the edge and preventing the dislocation of the tool, and the diameter of the circular hole (2-3) is the same as the maximum diameter of the first bevel gear (2-4-3).
5. The method for constructing a truss for a multi-format display according to claim 2, wherein:
adjusting the width and angle of the folding cross beam (1), loosening the hinged expansion bolts (1-3), and tightening the hinged expansion bolts (1-3) when the folding cross beam (1) takes on a preset shape;
welding upper end joints (1-4) at two ends of the folding cross beam (1);
aligning a first connecting hole of the end joint (1-4) with a bevel gear expansion bolt (2-4) extending out of one side surface of the connecting square head (2), and screwing the bevel gear expansion bolt (2-4);
adjusting the folding upright post (3) to a preset height;
aligning a second connecting hole at the top of the folding upright post (3) with a bevel gear expansion bolt (2-4) extending out of the bottom of the connecting square head (2), and screwing the bevel gear expansion bolt (2-4);
aligning the third connecting hole at the bottom of the folding upright post (3) with four inner side foundation bolts (4-2) on the skirting board (4-1), and screwing and fixing;
four outer side foundation bolts (4-3) on the baseboard (4-1) are drilled into the ground and are screwed and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811497913.3A CN109403668B (en) | 2018-12-07 | 2018-12-07 | Truss and method for constructing multi-form exhibition stand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811497913.3A CN109403668B (en) | 2018-12-07 | 2018-12-07 | Truss and method for constructing multi-form exhibition stand |
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| CN109403668A CN109403668A (en) | 2019-03-01 |
| CN109403668B true CN109403668B (en) | 2024-02-23 |
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| CN201811497913.3A Active CN109403668B (en) | 2018-12-07 | 2018-12-07 | Truss and method for constructing multi-form exhibition stand |
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| CN113833117B (en) * | 2021-09-13 | 2022-09-09 | 青岛新华友建工集团股份有限公司 | Assembled multilayer large-span bidirectional multi-span space steel grid box type structure building |
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| CN209429603U (en) * | 2018-12-07 | 2019-09-24 | 长安大学 | A kind of multi-form exhibition booth build truss |
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2018
- 2018-12-07 CN CN201811497913.3A patent/CN109403668B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050066588A1 (en) * | 2003-09-30 | 2005-03-31 | Stapleton James Alford | Folding modular structure |
| CN102605888A (en) * | 2012-03-08 | 2012-07-25 | 东南大学 | Truss structure with four degrees of freedom |
| CN203270777U (en) * | 2013-05-08 | 2013-11-06 | 褚介平 | Foldable supporting frame |
| CN107696062A (en) * | 2016-08-08 | 2018-02-16 | 株式会社不二宫制作所 | The variable D structure thing of shape |
| CN206071436U (en) * | 2016-08-17 | 2017-04-05 | 黄少安 | A kind of folding translational door with lamps |
| CN206428604U (en) * | 2017-01-19 | 2017-08-22 | 王凯 | A kind of overpass noise barrier self erecting device |
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| CN109403668A (en) | 2019-03-01 |
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