CN211816967U - Plane folding unit and foldable assembling type aluminum alloy supporting structure - Google Patents
Plane folding unit and foldable assembling type aluminum alloy supporting structure Download PDFInfo
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- CN211816967U CN211816967U CN202020143994.3U CN202020143994U CN211816967U CN 211816967 U CN211816967 U CN 211816967U CN 202020143994 U CN202020143994 U CN 202020143994U CN 211816967 U CN211816967 U CN 211816967U
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Abstract
The utility model relates to a plane folding unit, collapsible spelling formula aluminum alloy supporting structure. A plane folding unit comprises a cross rod, a first vertical rod, a second vertical rod, a first inclined rod and a second inclined rod; the first vertical rod and the second vertical rod are respectively hinged at two ends of the cross rod; the two ends of the first inclined rod are respectively hinged to the cross rod and the first vertical rod, the first inclined rod can be folded, the first inclined rod is provided with a first fixing device, and when the first inclined rod is unfolded, the first fixing device can enable the first inclined rod to be kept in an unfolded state; the two ends of the second inclined rod are respectively hinged to the cross rod and the second vertical rod, the second inclined rod is foldable, the second inclined rod is provided with a second fixing device, and when the second inclined rod is unfolded, the second fixing device can enable the second inclined rod to keep an unfolded state. The utility model relates to a plane folding unit, collapsible spelling formula aluminum alloy supporting structure based on mechanical properties optimization, it is single to solve current interim structural support system, and the component interval undersize, and structural installation is efficient, the unstable problem of performance.
Description
Technical Field
The utility model relates to a plane folding unit, collapsible spelling formula aluminum alloy supporting structure based on mechanical properties optimization.
Background
Along with the great improvement of the living standard of the material, the demands of the masses on sports and culture are more and more urgent, corresponding temporary performances and events are continuous, and the demands of various temporary structure facilities such as a temporary stand, a temporary stage and the like for the performances and the events are also more and more increased.
At present, support structures such as temporary stands, temporary stages and temporary ski runs are mostly transplanted from template support structures. Although the structural support part is similar to the formwork support, the overall form and the load of the structure are greatly changed, and the change is also one of the main reasons of frequent accidents of the temporary structure in the application process, such as collapse of temporary stands in international racing yards in shanghai in 2007, collapse of auditorium at Chongqing concert in 2012, and the like, and brings adverse effects to further expansion and application of the temporary structure. Because the temporary bleachers and the temporary stage structures need to bear a large amount of activities of people, the safety requirements of the structures need to be further improved compared with the template supports. Moreover, the structural form has more rod pieces and slower installation speed. According to the structural form and relevant specification requirements of the existing template support, the distance between the rod pieces is generally not more than 1.5m, so that the space filled by the rod piece structure cannot be effectively utilized, and the inspection on the structural safety is also very inconvenient.
In order to further improve the structural safety while ensuring the advantages of the temporary structure, it is necessary to develop a special support system for the characteristics of the temporary structure and to improve the flexibility of the structure according to the partial commonality of the temporary structure.
Disclosure of Invention
For solving the problem that exists among the above-mentioned background art, the utility model provides a plane folding unit, collapsible spelling formula aluminum alloy supporting structure based on mechanical properties optimization, it is single to solve current interim structural support system, and the component interval undersize, and structural installation is inefficient, the unstable problem of performance.
The utility model provides a technical scheme of above-mentioned problem is:
a planar folding unit, which is characterized in that:
comprises a cross rod, a vertical rod and an inclined rod,
the upright rods comprise a first upright rod, a second upright rod, a first inclined rod and a second inclined rod;
the first vertical rod and the second vertical rod are respectively hinged at two ends of the cross rod, the first vertical rod, the second vertical rod and the cross rod are positioned on the same plane, and the first inclined rod and the second inclined rod are respectively positioned at two sides of the plane;
the two ends of the first inclined rod are respectively hinged to the cross rod and the first vertical rod, the first inclined rod can be folded, the first inclined rod is provided with a first fixing device, and when the first inclined rod is unfolded, the first fixing device can enable the first inclined rod to be kept in an unfolded state; the two ends of the second inclined rod are respectively hinged to the cross rod and the second vertical rod, the second inclined rod is foldable, the second inclined rod is provided with a second fixing device, and when the second inclined rod is unfolded, the second fixing device can enable the second inclined rod to keep an unfolded state.
Further, the first inclined rod comprises a first upper inclined rod and a first lower inclined rod, and the second inclined rod comprises a second upper inclined rod and a second lower inclined rod;
one ends of the first vertical rod and the second vertical rod are respectively connected with two ends of the cross rod through pin shafts;
the upper end of the first upper inclined rod is connected to one side, close to the second vertical rod, of the cross rod through a pin shaft, the lower end of the first upper inclined rod and the upper end of the first lower inclined rod are connected into a first U-shaped groove through a pin shaft respectively, and the lower end of the first lower inclined rod is connected with the lower portion of the first vertical rod through a pin shaft; the upper end of the second upper inclined rod is connected to one side, close to the first vertical rod, of the cross rod through a pin shaft, the lower end of the second upper inclined rod and the upper end of the second lower inclined rod are respectively connected into a second U-shaped groove through a pin shaft, and the lower end of the second lower inclined rod is connected with the lower portion of the second vertical rod through a pin shaft;
the first fixing device is a first sleeve, the first sleeve is sleeved on the first upper inclined rod and can slide on the first upper inclined rod, long round holes are formed in two sides of the first sleeve respectively, at least two fixing pin shafts are arranged on the first upper inclined rod, two ends of each fixing pin shaft are clamped in the long round holes in the two sides of the first sleeve respectively, and the fixing pin shafts are used for limiting the sliding path of the sleeves;
the second fixing device is a second sleeve, the second sleeve is sleeved on the second upper inclined rod and can slide on the second upper inclined rod, two sides of the second sleeve are respectively provided with a long circular hole, the second upper inclined rod is provided with at least two fixing pin shafts, two ends of each fixing pin shaft are respectively clamped in the long circular holes in the two sides of the second sleeve, and the fixing pin shafts are used for limiting the sliding path of the sleeves;
and the first vertical rod and the second vertical rod are respectively provided with at least one connecting sheet.
Furthermore, the plane folding unit further comprises a U-shaped buckle, the U-shaped buckle is composed of three U-shaped grooves, the U-shaped grooves on two sides can rotate freely around the middle U-shaped groove, the U-shaped grooves on two sides are buckled on the first upper inclined rod and the second upper inclined rod respectively, and the U-shaped buckle, the first upper inclined rod and the second upper inclined rod are connected through bolts.
Furthermore, two connecting sheets are arranged on the first vertical rod and the second vertical rod and are respectively positioned at three points on the first vertical rod and the second vertical rod.
In addition, the utility model also provides a foldable assembling type aluminum alloy supporting structure which is characterized by comprising a plurality of space supporting bodies connected in the horizontal direction or the vertical direction,
each space support body comprises eight connecting discs, each connecting disc is provided with at least four mounting holes, and the eight connecting discs form a rectangular frame structure through four planar folding units; the end of each plane folding unit upright rod is fixed in a mounting hole on the corresponding connecting disc.
Further comprises a connecting ring, the surface of the connecting ring is provided with a connecting hole,
the connecting pieces of two adjacent vertical rods in the assembled aluminum alloy supporting structure face opposite directions, and the connecting pieces of the adjacent vertical rods are inserted into the connecting holes of the connecting rings up and down to realize further connection of the plane folding units.
Furthermore, the outer side of the connecting disc is provided with a bolt hole corresponding to the mounting hole, and the vertical rod and the connecting disc can be fixed by a bolt penetrating through the bolt hole.
Furthermore, the connecting disc is also provided with a lightening hole.
The utility model has the advantages that:
(1) the foldable assembling type aluminum alloy supporting structure is connected in an assembling mode of the folding units and the connecting nodes, so that a supporting structure can be provided for various temporary structures, and the flexibility of the structure is improved;
(2) the plane folding unit can be folded, so that the occupied space of the components during storage and transportation is reduced, and the space utilization efficiency and the transportation convenience are improved;
(3) in the foldable assembly type aluminum alloy supporting structure, the connecting discs and the vertical rods form a combined column, so that the stress stability of the vertical rods is improved, the layer height and the rod piece spacing are increased, the structural possibility is provided for the utilization of the lower space, and the optimal arrangement position of the connecting rings is obtained when the two connecting rings are connected through the optimization of mechanical properties;
(4) in the foldable assembly type aluminum alloy supporting structure, the connecting sheets are inserted into the connecting rings up and down, so that the structural integrity is improved.
Drawings
FIG. 1 is a plan view of a folding unit;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
FIG. 4 is an enlarged view at C of FIG. 1;
FIG. 5 is a view of the cartridge of FIG. 4 with the cartridge removed;
FIG. 6 is a view of a U-shaped buckle;
FIG. 7 is a schematic view of a planar folding unit during deployment;
FIG. 8 is a schematic diagram of a land configuration;
FIG. 9 is a schematic view of the attachment ring configuration;
FIG. 10 is a schematic view of the assembly of a collapsible modular aluminum alloy support structure;
FIG. 11 is an enlarged view of FIG. 10 at interface disk D;
fig. 12 is an enlarged view of fig. 10 at land E.
Wherein, 1, a cross bar; 2. a first upright rod; 3. a second upright stanchion;
4. a first diagonal member; 41. a first upper diagonal member; 42. a first lower diagonal bar;
5. a second diagonal member; 51. a second upper diagonal member; 52. a second lower diagonal member;
6. a first U-shaped slot; 7. a second U-shaped slot; 8. a first sleeve; 9. fixing a pin shaft; 10. a second sleeve; 11. connecting sheets; 12. a U-shaped buckle; 13. a connecting disc; 14. mounting holes; 15. a connecting ring; 16. bolt holes.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-6, a planar folding unit comprises a cross bar 1, a vertical bar and a diagonal bar.
The vertical rod comprises a first vertical rod 2 and a second vertical rod 3, and the diagonal rod comprises a first diagonal rod 4 and a second diagonal rod 5. The first vertical rod 2 and the second vertical rod 3 are identical in structure, and the first inclined rod 4 and the second inclined rod 5 are identical in structure. The first upright rod 2 consists of a rectangular pipe, an end connector and a connecting piece, wherein one end of the connector is square, is inserted into the rectangular pipe and is fixed, and the other end of the connector is round; the cross rod 1 is also connected with the connector through a rectangular pipe, and the cross rod 1 is connected with the vertical rod through a pin shaft and can rotate freely.
First pole setting 2, second pole setting 3 articulate respectively in the both ends of horizontal pole 1, and first pole setting 2, second pole setting 3, horizontal pole 1 are in the coplanar, and first down tube 4 and second down tube 5 are located this planar both sides respectively.
The two ends of the first inclined rod 4 are respectively hinged to the cross rod 1 and the first vertical rod 2, the first inclined rod 4 can be folded, the first inclined rod 4 is provided with a first fixing device, and when the first inclined rod 4 is unfolded, the first fixing device can enable the first inclined rod 4 to keep an unfolded state; the two ends of the second diagonal rod 5 are respectively hinged on the cross rod 1 and the second vertical rod 3, the second diagonal rod 5 can be folded, the second diagonal rod 5 is provided with a second fixing device, and when the second diagonal rod 5 is unfolded, the second fixing device can enable the second diagonal rod 5 to keep an unfolded state.
The first inclined rod 4 comprises a first upper inclined rod 41 and a first lower inclined rod 42, and the second inclined rod 5 comprises a second upper inclined rod 51 and a second lower inclined rod 52; one ends of the first vertical rod 2 and the second vertical rod 3 are respectively connected with two ends of the cross rod 1 through pin shafts; the upper end of the first upper inclined rod 41 is connected to the side, close to the second vertical rod 3, of the cross rod 1 through a pin shaft, the lower end of the first upper inclined rod and the upper end of the first lower inclined rod 42 are respectively connected into the first U-shaped groove 6 through a pin shaft, and the lower end of the first lower inclined rod 42 is connected with the lower part of the first vertical rod 2 through a pin shaft; the upper end of the second upper inclined rod 51 is connected to the side, close to the first vertical rod 2, of the cross rod 1 through a pin shaft, the lower end of the second upper inclined rod and the upper end of the second lower inclined rod 52 are connected to the second U-shaped groove 7 through a pin shaft respectively, and the lower end of the second lower inclined rod 52 is connected to the lower portion of the second vertical rod 3 through a pin shaft.
The first fixing device is a first sleeve 8, the first sleeve 8 is sleeved on a first upper inclined rod 41, the first sleeve 8 can slide on the first upper inclined rod 41, the two sides of the first sleeve 8 are respectively provided with a long circular hole, the first upper inclined rod 41 is provided with at least two fixing pin shafts 9, the two ends of each fixing pin shaft 9 are respectively clamped in the long circular holes in the two sides of the first sleeve 8, and the fixing pin shafts 9 are used for limiting sliding paths of the sleeves.
The second fixing device is a second sleeve 10, the second sleeve 10 is sleeved on the second upper inclined rod 51, the second sleeve 10 can slide on the second upper inclined rod 51, two sides of the second sleeve 10 are respectively provided with a long circular hole, the second upper inclined rod 51 is provided with at least two fixing pin shafts 9, two ends of each fixing pin shaft 9 are respectively clamped in the long circular holes in two sides of the second sleeve 10, and the fixing pin shafts 9 are used for limiting sliding paths of the sleeves.
The first vertical rod 2 and the second vertical rod 3 are respectively provided with at least one connecting sheet 11. The connecting piece 11 is connected with the rectangular tube by a rivet.
The U-shaped buckle 12 is composed of three U-shaped grooves, the U-shaped grooves on two sides can rotate freely around the U-shaped groove in the middle, the U-shaped grooves on two sides are buckled on the first upper inclined rod 41 and the second upper inclined rod 51 respectively, and the U-shaped buckle 12, the first upper inclined rod 41 and the second upper inclined rod 51 are connected through bolts.
The folding process of the planar folding unit is shown in fig. 7. The initial state is folding state, a pole setting and horizontal pole 1 closely laminate, and another pole setting laminates with last pole setting, and two down tube are placed side by side, and first sleeve 8 and second sleeve 10 are at the down tube tip, and the length direction of the down tube rather than the corresponding U-shaped groove is basically perpendicular. When the folding bicycle is opened, the outer vertical rod is rotated around the cross rod 1, the inclined rod can move along with the vertical rod, and when the rotation angle is about 60 degrees, the other vertical rod is rotated to be in a half-opened state. When the two vertical rods rotate to be parallel to the cross rod 1, the inclined rods are in a linear state, the two sleeves slide at the moment, the joints of the upper inclined rods and the lower inclined rods are completely wrapped and extend to a certain extent, and the upper inclined rods and the lower inclined rods cannot rotate relatively. Then the U-shaped buckle 12 is clamped at the intersection of the two upper inclined rods and is fixed by bolts.
Example two:
referring to fig. 10, a foldable assembly type aluminum alloy supporting structure comprises a plurality of space supporting bodies connected in a horizontal direction or a vertical direction, each space supporting body comprises eight connecting discs 13, each connecting disc 13 is provided with at least four mounting holes 14, and the eight connecting discs 13 form a rectangular frame structure through four planar folding units; the end of each flat folding unit upright is fixed in a mounting hole 14 on its corresponding connecting plate 13.
When the foldable assembly type aluminum alloy supporting structure is installed, the bottom connecting disc 13 is placed on the ground as required, then the upward plane folding units of the connecting sheets 11 are unfolded and inserted into the connecting disc 13, the upward plane folding units of the connecting sheets are positioned in the same plane, and then the connecting ring 15 is inserted. The unit is then folded down flat with the tabs 11, the tabs are inserted into the connecting ring 15 while the uprights are inserted into the connecting discs 13, the insertion of the upper connecting discs 13 is started after all the units of the bottom layer have been installed, and then the mounting of the superstructure is continued. The connection node at the structural connection disc 13 and the connection node at the connection ring 15 are fixed on the vertical rods in one connection disc 13, as shown in fig. 11 and 12, the connection pieces 11 of two adjacent vertical rods are oppositely oriented, and the connection pieces 11 of the adjacent vertical rods are inserted into the connection holes of the connection ring 15 up and down to realize further connection of the plane folding unit.
Referring to fig. 8, the connecting disc 13 is an octagonal body, the connecting disc 13 has four mounting holes 14, the rest holes are lightening holes, bolt holes 16 are arranged at positions corresponding to the mounting holes 14 on the outer side, and the upright rods and the connecting disc 13 can be fixed by bolts penetrating through the bolt holes 16.
Referring to fig. 9, the connection ring 15 is an octagonal body having four rectangular holes for insertion of the connection pieces 11.
The utility model discloses collapsible spelling formula aluminum alloy supporting structure passes through planar structure and folds, connects horizontal pole, pole setting and down tube in advance, and the scene only needs to open beta structure, has improved on-the-spot installation effectiveness. Through the installation of the plane folding unit, the cross section of the integral stand column of the structure is larger than the cross sections of the cross rod and the inclined rod, and the stability of the combined stand column is further improved and the integral bearing capacity of the structure is improved through the constraint action of the connecting discs and the connecting rings. Through the connection mode that the connecting ring is inserted from top to bottom, the plane folding units on one layer can be connected into a whole, even if the connecting disc is not connected through a transverse bolt, the pulling resistance of the structure can be ensured for the structure with the general height-width ratio, so that the bolt connection time can be saved, and the efficiency is further improved.
The utility model discloses collapsible spelling formula aluminum alloy supporting structure passes through adjustment member cross sectional dimension, can regard as interim stand, interim stage, the supporting structure in interim skiing platform and simple and easy house.
Example three:
the difference between the present embodiment and the second embodiment is that two connecting rings are arranged at the three points of the vertical rod.
In order to verify the lifting effect of the connecting ring on the structural stability, an axial stability test is carried out on a combined column consisting of four aluminum alloy rectangular tubes (vertical rods) connected by the connecting ring 15, the test is carried out in a hydraulic testing machine, displacement control is adopted, the loading rate is 0.1mm/min, the cross section of each rectangular tube is 50mm multiplied by 3mm, the material is 6061-T6 aluminum alloy, the height is 2500mm, and the failure mode of a component obtained by the test is shown in the following figure. According to the drawing, the arrangement of the connecting rings reduces the relative deformation between the rectangular pipes, improves the cooperative working capacity between the rectangular pipes, and triggers the local buckling of the pipe fittings when the two connecting rings are arranged. When no connecting ring is arranged, the axial bearing capacity of the column is 195.52kN, when one connecting ring is arranged, 222.38kN is arranged, when two connecting rings are arranged, 242.25kN is arranged, and the bearing capacity is greatly improved.
Furthermore, ABAQUS is adopted to establish a finite element model of the column, and the simulation of the columns with different heights is used to obtain that when the connecting rings 15 are symmetrically arranged up and down, when the ratio of the distance between the two connecting rings 15 to the height of the column is 0.4, the axial bearing capacity of the column reaches the maximum value, and the optimal connecting ring arrangement position is obtained.
Example four: the difference between the embodiment and the third and second embodiments is that the connecting disc and the connecting ring are not connected by bolts.
Example five: this embodiment differs from the second to fourth embodiments in that the middle connecting ring 15 and the connecting piece 11 are removed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can still adjust the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some technical features thereof. Therefore, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A planar folding unit, characterized by:
comprises a cross bar (1), a vertical bar and an inclined bar,
the upright rods comprise a first upright rod (2) and a second upright rod (3), and the inclined rods comprise a first inclined rod (4) and a second inclined rod (5);
the first vertical rod (2) and the second vertical rod (3) are respectively hinged to two ends of the cross rod (1), the first vertical rod (2), the second vertical rod (3) and the cross rod (1) are positioned on the same plane, and the first inclined rod (4) and the second inclined rod (5) are respectively positioned on two sides of the plane;
the two ends of the first inclined rod (4) are respectively hinged to the cross rod (1) and the first vertical rod (2), the first inclined rod (4) can be folded, the first inclined rod (4) is provided with a first fixing device, and when the first inclined rod (4) is unfolded, the first fixing device can enable the first inclined rod (4) to be kept in an unfolded state; the two ends of the second inclined rod (5) are respectively hinged to the cross rod (1) and the second vertical rod (3), the second inclined rod (5) is foldable, the second inclined rod (5) is provided with a second fixing device, and when the second inclined rod (5) is unfolded, the second fixing device can enable the second inclined rod (5) to keep an unfolded state.
2. A flat folding unit as claimed in claim 1, wherein:
the first inclined rod (4) comprises a first upper inclined rod (41) and a first lower inclined rod (42), and the second inclined rod (5) comprises a second upper inclined rod (51) and a second lower inclined rod (52);
one ends of the first vertical rod (2) and the second vertical rod (3) are respectively connected with two ends of the cross rod (1) through pin shafts;
the upper end of a first upper inclined rod (41) is connected to one side, close to the second vertical rod (3), of the cross rod (1) through a pin shaft, the lower end of the first upper inclined rod and the upper end of a first lower inclined rod (42) are respectively connected into a first U-shaped groove (6) through a pin shaft, and the lower end of the first lower inclined rod (42) is connected with the lower part of the first vertical rod (2) through a pin shaft; the upper end of a second upper inclined rod (51) is connected to one side, close to the first vertical rod (2), of the cross rod (1) through a pin shaft, the lower end of the second upper inclined rod and the upper end of a second lower inclined rod (52) are connected into a second U-shaped groove (7) through pin shafts respectively, and the lower end of the second lower inclined rod (52) is connected with the lower portion of the second vertical rod (3) through a pin shaft;
the first fixing device is a first sleeve (8), the first sleeve (8) is sleeved on the first upper inclined rod (41), the first sleeve (8) can slide on the first upper inclined rod (41), long round holes are formed in two sides of the first sleeve (8), at least two fixing pin shafts are arranged on the first upper inclined rod (41), two ends of each fixing pin shaft are clamped in the long round holes in two sides of the first sleeve (8) respectively, and the fixing pin shafts are used for limiting the sliding path of the first sleeve (8);
the second fixing device is a second sleeve (10), the second sleeve (10) is sleeved on the second upper inclined rod (51), the second sleeve (10) can slide on the second upper inclined rod (51), two sides of the second sleeve (10) are respectively provided with a long circular hole, the second upper inclined rod (51) is also provided with at least two fixed pin shafts, two ends of each fixed pin shaft are respectively clamped in the long circular holes on two sides of the second sleeve (10), and the fixed pin shafts are used for limiting the sliding path of the second sleeve (10);
the first vertical rod (2) and the second vertical rod (3) are respectively provided with at least one connecting sheet (11).
3. A flat folding unit according to claim 2, characterized in that:
the plane folding unit further comprises a U-shaped buckle (12), the U-shaped buckle (12) is composed of three U-shaped grooves, the U-shaped grooves on two sides can rotate freely around the middle U-shaped groove, the U-shaped grooves on two sides are buckled on the first upper inclined rod (41) and the second upper inclined rod (51) respectively, and the U-shaped buckle (12), the first upper inclined rod (41) and the second upper inclined rod (51) are connected through bolts.
4. A flat folding unit according to claim 2, characterized in that:
all be equipped with two connection pieces (11) on first pole setting (2), second pole setting (3), two connection pieces (11) are located respectively the trisection department on first pole setting (2), second pole setting (3).
5. The utility model provides a collapsible spelling formula aluminum alloy supporting structure which characterized in that: comprising a plurality of space supports connected in a horizontal direction or a vertical direction,
each space support body comprises eight connecting discs (13), each connecting disc (13) is provided with at least four mounting holes (14), and the eight connecting discs (13) form a rectangular parallelepiped frame structure through four plane folding units according to claims 1-3; the end of each plane folding unit vertical rod is fixed in a mounting hole (14) on a corresponding connecting plate (13).
6. The collapsible sectional aluminum alloy support structure of claim 5, wherein:
the connecting device also comprises a connecting ring (15), wherein the surface of the connecting ring (15) is provided with a connecting hole;
the connecting sheets (11) of two adjacent vertical rods of the vertical rods are oppositely oriented, and the connecting sheets (11) of the adjacent vertical rods are inserted into the connecting holes of the connecting ring (15) up and down to realize further connection of the plane folding unit.
7. The collapsible sectional aluminum alloy support structure of claim 6, wherein:
the outer side of the connecting disc (13) is provided with a bolt hole (16) corresponding to the mounting hole (14), and the upright rod and the connecting disc (13) can be fixed by a bolt penetrating through the bolt hole (16).
8. The collapsible sectional aluminum alloy support structure of claim 7, wherein:
and the connecting disc (13) is also provided with a lightening hole.
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| CN202020143994.3U CN211816967U (en) | 2020-01-22 | 2020-01-22 | Plane folding unit and foldable assembling type aluminum alloy supporting structure |
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| CN202020143994.3U CN211816967U (en) | 2020-01-22 | 2020-01-22 | Plane folding unit and foldable assembling type aluminum alloy supporting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188413A (en) * | 2020-01-22 | 2020-05-22 | 哈尔滨工业大学 | Plane folding unit and foldable assembling type aluminum alloy supporting structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188413A (en) * | 2020-01-22 | 2020-05-22 | 哈尔滨工业大学 | Plane folding unit and foldable assembling type aluminum alloy supporting structure |
| CN111188413B (en) * | 2020-01-22 | 2024-09-24 | 哈尔滨工业大学 | Plane folding unit and foldable assembled aluminum alloy supporting structure |
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