CN112761057A - Folding structure and folding bridge - Google Patents
Folding structure and folding bridge Download PDFInfo
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- CN112761057A CN112761057A CN202011617217.9A CN202011617217A CN112761057A CN 112761057 A CN112761057 A CN 112761057A CN 202011617217 A CN202011617217 A CN 202011617217A CN 112761057 A CN112761057 A CN 112761057A
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- web member
- folding
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- panel
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/14—Floating bridges, e.g. pontoon bridges
- E01D15/20—Floating bridges, e.g. pontoon bridges collapsible, expandable, inflatable or the like with main load supporting structure consisting only of non-rigid members
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of civil structure engineering, in particular to a folding structure and a folding bridge. The utility model provides a folding structure, includes first chord member and two folding units, and folding unit includes panel, first web member and second web member, and the one end of first web member is rotated and is installed in the one end of panel, and the one end of second web member is rotated and is installed in the other end of panel, and the other end of second web member can slide to the other end of first web member from the one end of first web member, and the both ends of first chord member are rotated respectively and are connected in the other end of two second web members. According to the folding structure provided by the invention, the first web member and the second web member are respectively rotatably arranged at two ends of the panel, the first web member is in sliding connection with the second web member, and the first chord member is connected with the two folding units, so that the folding structure can be unfolded in a mechanical mode and driven by gravitational potential energy to be unfolded, the unfolding is quick and convenient, the economy is good, and the technical problem that the existing temporary bridge is high in cost is solved.
Description
Technical Field
The invention relates to the technical field of civil structure engineering, in particular to a folding structure and a folding bridge.
Background
The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern high-speed developed traffic industry, bridges are also extended to be constructed to span mountain stream, unfavorable geology or meet other traffic needs, so that the buildings are convenient to pass.
The natural geological conditions of China are complex, and the probability of mountain or geological motion is extremely high. When an original bridge is damaged due to mountain or geological movement, or when personnel and goods need to rapidly cross rivers, valleys or canyons, in consideration of the long construction period of a fixed bridge, engineering personnel usually choose to erect temporary bridges for meeting the basic flow requirements of the goods and the personnel.
The temporary bridge can quickly get through the damaged existing bridge, can also be used for setting up a new traffic line, and is important equipment for guaranteeing line mobility. In modern society, the role of bridge equipment in emergency rescue and disaster relief is increasingly strengthened, and a temporary bridge can be erected to ensure that a rescue goods and materials motorcade and engineering machinery quickly cross an obstacle and arrive at a disaster area in time, so that the disaster loss is reduced.
According to the related art known by the inventor, the temporary bridge is based on a scissor-hinge unit as an expandable unit, then a plurality of units are spliced, so that the requirement of span is met, and finally the scissor-hinge unit is expanded by using a hydraulic device as a driving system. However, such temporary bridges based on scissor-hinge units are costly to manufacture. Therefore, the development of a novel efficient, economic and rapidly-deployable folding bridge has very important significance, and meanwhile, the diversity of temporary bridges can be enriched.
Disclosure of Invention
The invention aims to provide a folding structure and a folding bridge, and aims to solve the technical problem that the existing temporary bridge is high in cost and manufacturing cost.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a folding structure, includes first chord member and two folding units, folding unit includes panel, first web member and second web member, the one end of first web member rotate install in the one end of panel, the one end of second web member rotate install in the other end of panel, the other end of second web member can be followed the one end of first web member slides extremely the other end of first web member, one of them folding unit the one end of panel with another folding unit the other end of panel is connected, the both ends of first chord member rotate respectively connect in two folding unit the other end of second web member.
In one embodiment, the first web member has a slide slot extending from one end of the first web member to the other end of the first web member, and the other end of the second web member has a slide member in sliding engagement with the slide slot.
In one embodiment, one side of the second web member has the sliding member, and the other side of the second web member has the sliding member.
In one embodiment, the first web member includes a first side bar and a second side bar arranged side-by-side with the second web member and the first chord positioned therebetween.
In one embodiment, the first web member further comprises a connecting member connecting the first side bar and the second side bar.
In one embodiment, one end of the panel of one of the folding units is rotatably connected with the other end of the panel of the other folding unit.
In one embodiment, one end of the panel is provided with a first rotating part, and the other end of the panel is provided with a second rotating part which is rotatably connected with the first rotating part.
In one embodiment, the bottom of the panel has two first rotating parts, and the two first rotating parts are arranged at intervals.
In one embodiment, the first rotating portion has a first hinge hole, and the second rotating portion has a second hinge hole corresponding to the first hinge hole.
In one embodiment, one end of the first web member is rotatably connected to the first rotating portion, and one end of the first web member has a first rotating groove for receiving the second rotating portion.
In one embodiment, one end of the first web member is connected to the first rotating portion, the first rotating portion has a second rotating groove receiving the first web member, and the second rotating portion has a third rotating groove receiving the first rotating portion.
In one embodiment, the second web member has an insert portion and a groove for receiving the insert portion at both ends thereof, respectively.
In one embodiment, the other end of the panel has a third rotating portion having a fourth rotating groove, the embedded portion of the second web member is located in the fourth rotating groove and is rotatably connected to the third rotating portion, and the groove receives the third rotating portion.
In one embodiment, the folding structure further comprises a second chord member, one end of the second chord member is rotatably mounted at the other end of one of the second web members, and the other end of the second chord member is rotatably mounted at the other end of the second web member of the other folding structure.
In one embodiment, the first chord and the second chord are located on either side of the second web member.
In one embodiment, the other end of the first web member has a first reserved connection hole, and the other end of the second web member has a second reserved connection hole corresponding to the first reserved connection hole.
In one embodiment, both ends of the first chord member are provided with third reserved connecting holes.
The utility model provides a folding bridge, includes more than two beta structure, more than two beta structure the panel connects gradually.
The invention has the beneficial effects that: according to the folding structure provided by the invention, the first web member and the second web member are respectively rotatably arranged at two ends of the panel, the first web member is in sliding connection with the second web member, and the first chord member is connected with the two folding units, so that the folding structure can be unfolded in a mechanical mode and driven by gravitational potential energy, the unfolding is quick and convenient, the economy is good, and the technical problem that the existing temporary bridge is high in cost is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic view of a flat folded bridge according to an embodiment of the present invention;
FIG. 2 is a schematic view of an unfolded folded bridge according to an embodiment of the present invention
FIG. 3 is a schematic structural diagram of a folding structure according to an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3 with the panel removed;
FIG. 5 is a schematic view of the first web member of FIG. 4;
FIG. 6 is a schematic view of the second web member of FIG. 4;
FIG. 7 is a schematic structural view of the first and second chords of FIG. 4;
FIG. 8 is a schematic structural view of the panel of FIG. 3;
FIG. 9 is a schematic view of the connection of two folding units of FIG. 3;
FIG. 10 is a first schematic view of a folded bridge according to an embodiment of the present invention;
fig. 11 is a second schematic view of the folded bridge before being flattened according to the embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10-a folding unit;
100-panel, 110-first rotating part, 111-second rotating groove, 120-second rotating part, 121-third rotating groove, 130-third rotating part, 131-fourth rotating groove, 140-hinge;
200-a first web member, 201-a first side bar, 202-a second side bar, 203-a connecting piece, 210-a sliding groove, 220-a first rotating groove, 230-a first reserved connecting hole and 240-a first connecting through hole;
300-a second web member, 310-a sliding member, 320-an embedding part, 330-a groove, 340-a second reserved connecting hole, 350-a second connecting through hole and 360-an installation bulge;
20-a first chord member, 21-a third reserved connecting hole;
30-a second chord member, 31-a fourth reserved connecting hole;
40-a fastener.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and 2, a foldable bridge includes more than two folding structures.
Referring to fig. 3 to 7, a folding structure includes a first chord 20 and two folding units 10. The folding unit 10 includes a panel 100, a first web member 200 and a second web member 300, one end of the first web member 200 is rotatably mounted to one end of the panel 100, i.e., the first web member 200 has a rotating end and a movable end, and the rotating end of the first web member 200 is rotatably mounted to one end of the panel 100. One end of the second web member 300 is rotatably mounted to the other end of the panel 100, and the other end of the second web member 300 is slidable from one end of the first web member 200 to the other end of the first web member 200, i.e., the second web member 300 has a rotating end and a sliding end, and the rotating end of the second web member 300 is rotatably mounted to the other end of the panel 100. In the two folding units 10, one end of the panel 100 of one folding unit 10 is connected to the other end of the panel 100 of the other folding unit 10, and both ends of the first chord 20 are rotatably connected to the other ends of the two second web members 300, respectively.
Referring to fig. 3 and 4, when the folded structure is in the flat state, the first web member 200, the second web member 300 and the first chord 20 are all placed to be attached to the bottom of the panel 100.
Referring to fig. 2, 4 and 5, when the folded structure is unfolded, the right end of the first web member 200 rotates clockwise with the left end of the first web member 200 as a fulcrum, the left end of the second web member 300 rotates counterclockwise with the right end of the second web member 300 as a fulcrum, and the left end of the second web member 300 slides along the first web member 200, so that the first web member 200 and the second web member 300 rotate to be unfolded, and the sliding connection between the first web member 200 and the second web member 300 is maintained. In the two folding units 10, both ends of the first chord 20 are respectively rotated around the right ends of the two second web members 300 and moved down counterclockwise following the left ends of the two second web members 300. The folded structure is unfolded to form a typical truss structure. So, two folding unit 10's top is through two panel 100 interconnect, and two folding unit 10's below is through first chord 20 interconnect, and the switching of open and flat state and expansion state is realized through mechanical form to beta structure, need not power supplies such as pneumatic cylinder, reduces the cost, and it is convenient fast to expand.
According to the folding structure provided by the invention, the first web member 200 and the second web member 300 are respectively rotatably mounted at two ends of the panel 100, the first web member 200 is slidably connected with the second web member 300, and the first chord member 20 is connected with the two folding units 10, so that the folding structure can be unfolded in a mechanical mode and driven by gravitational potential energy, the unfolding is quick and convenient, the economy is good, and the technical problem that the existing temporary bridge is high in cost is solved.
The traditional fixed bridge has long construction period, complex construction environment and large workload, and cannot meet the requirement of rapid rescue action in disaster areas. The known related temporary bridge is driven by a large amount of hydraulic systems to unfold, but the recycling performance is poor, a large amount of labor force is still needed for folding and curling, the manufacturing cost is high, and the popularization is difficult.
Referring to fig. 1 and 2, in the folding bridge provided by the present invention, panels 100 of more than two folding structures are connected in sequence, so that a certain number of folding structures are reasonably selected according to the length requirement of the bridge, and the folding structures are connected in sequence and can be assembled and extended along the span direction of the bridge.
The folding bridge provided by the invention has the following advantages:
first, the folding bridge provided by the invention can quickly provide a temporary new traffic line after an old bridge is damaged or when a dangerous terrain is crossed, so that a rescue goods and materials motorcade and an engineering machine can quickly cross an obstacle and reach a disaster area in time.
Secondly, the folding bridge provided by the invention adopts a sliding mechanical structure, the folding structure is unfolded under the action of gravitational potential energy, the unfolding mode is simple and convenient, the height of the section of the unfolded folding structure is increased, the rigidity and the strength are greatly improved, and the folding bridge has good spanning capability.
Thirdly, the folding bridge provided by the invention can be reused, and overcomes the defect that the conventional temporary bridge is high in manufacturing cost due to the fact that a large number of hydraulic devices are used.
In one embodiment, referring to fig. 4 to 6, the first web member 200 has a slide groove 210 extending from one end of the first web member 200 to the other end of the first web member 200, and the other end of the second web member 300 has a slide 310 slidably engaged with the slide groove 210. Second web member 300 adopts slider 310 and spout 210's cooperation, realizes can following the one end of first web member 200 and slide to the other end of first web member 200 to no matter second web member 300 is in the open and flat state or is unfolding the state, all the time with first web member 200 sliding connection, improves folding unit 10's wholeness, and is favorable to second web member 300 to realize quick the expansion under the slip constraint condition, shortens folding structure's installation time greatly.
Optionally, the first web member 200 has a runner 210 that extends through the first web member 200, or alternatively, the first web member 200 has a runner 210 that does not extend through the first web member 200.
Specifically, referring to fig. 4 to 6, in two adjacent second web members 300, one side of one second web member 300 has a sliding member 310, and the other side of the other second web member 300 has a sliding member 310. That is, in the two folding units 10, the two second web members 300 are slidably connected to the first web members 200 on different sides, respectively. Like this, in beta structure, one of them second web member 300 and left first web member 200 sliding connection, another second web member 300 and right side second web member 300 sliding connection, the sliding contact position left and right crisscross, mutual symmetry of two second web members 300 avoids concentrating on second web member 300 and sets up sliding fit with one side to make beta structure have the symmetry of atress, possess good rigidity and intensity.
In each folding unit 10, the number of the first web members 200 may be two, and the first web members are respectively distributed on two sides of the second web member 300, so that the second web member 300 can be respectively connected with the first web members 200 on different sides in a sliding manner. Alternatively, it is understood that the number of the first web members 200 may be one, and in two adjacent folding units 10, the first web member 200 of one folding unit 10 is located at the left side of the second web member 300, and the first web member 200 of the other folding unit 10 is located at the right side of the second web member 300, so that the adjacent second web members 300 can be slidably connected with the first web members 200 at different sides in a staggered manner.
In one embodiment, referring to fig. 4 and 5, the first web member 200 includes a first side bar 201 and a second side bar 202 arranged side by side, and the second web member 300 and the first chord 20 are located between the first side bar 201 and the second side bar 202. The first web member 200 comprises two side bars which are spaced apart from each other, so that the bearing capacity of the folding structure is improved, and the folding structure has good rigidity and strength.
Specifically, the first side bar 201 and the second side bar 202 are respectively located at both sides of the bottom of the panel 100, and the second web member 300 is located near the center line of the bottom of the panel 100.
In the adjacent folding units 10, the first web members 200 of one folding unit 10 and the first web members 200 of the other folding unit 10 are staggered to avoid interference between the adjacent first web members 200 during the unfolding process.
Specifically, referring to fig. 5, the first web member 200 further includes a connecting member 203 connecting the first side bar 201 and the second side bar 202. The connecting member 203 enables the first side bar 201 and the second side bar 202 to move synchronously and uniformly during the unfolding process.
Specifically, referring to fig. 5, one end of the connecting member 203 is connected to the sidewall of the first side bar 201 away from the panel 100, and the other end of the connecting member 203 is connected to the sidewall of the second side bar 202 away from the panel 100. The connecting member 203 is located at the bottom of the first side bar 201 and the second side bar 202 to avoid affecting the rotational expansion of the second web member 300 and the first chord 20.
Wherein, the side walls of the first side bar 201 and the second side bar 202 facing the second web member 300 are provided with slide slots 210, and one side of the second web member 300 is provided with a sliding piece 310 which is in sliding fit with the slide slots 210.
Of course, it will be appreciated that in other embodiments, the number of first web members 200 per folding unit 10 may be one.
In one embodiment, referring to fig. 8, 10 and 11, one end of the panel 100 of one folding unit 10 is rotatably connected to the other end of the panel 100 of another folding unit 10, so that the folding structure can be further turned during storage, greatly reducing the length of the folding structure, and facilitating transportation and storage.
It will be appreciated that in other embodiments, one end of the panel 100 of one of the folding units 10 is connected to the other end of the panel 100 of the other folding unit 10 by a fixed connection, such as welding.
In one embodiment, referring to fig. 8 and 9, one end of each panel 100 has a first rotating portion 110, the other end of each panel 100 has a second rotating portion 120 rotatably connected to the first rotating portion 110, and two adjacent panels 100 are rotatably connected to each other through the first rotating portion 110 and the second rotating portion 120.
Specifically, the top surface of the panel 100 is a plane, and the bottom of the panel 100 has a first rotating portion 110 and a second rotating portion 120.
Specifically, referring to fig. 8 and 9, the bottom of the panel 100 has two first rotating portions 110, and the two first rotating portions 110 are spaced apart from each other. Correspondingly, the other end of the panel 100 has two second rotating parts 120. Thus, two rotational connection points are formed between the adjacent panels 100, and the connection is more stable.
Specifically, referring to fig. 8 and 9, the first rotating portion 110 has a first hinge hole, and the second rotating portion 120 has a second hinge hole corresponding to the first hinge hole. The first hinge hole and the second hinge hole have the hinge 140 inserted therein, so that the first rotating portion 110 and the second rotating portion 120 are rotatably connected. The hinge 140 is a pin and shaft.
It is understood that in other embodiments, one of the side walls of the first rotating part 110 and the second rotating part 120 has a rotating shaft, and the other of the side walls of the first rotating part 110 and the second rotating part 120 has a hole rotatably engaged with the rotating shaft, so that the first rotating part 110 and the second rotating part 120 are rotatably connected.
Referring to fig. 8 and 9, one end of the first web member 200 is rotatably connected to the first rotating portion 110.
For example, one end of the first web member 200 has a first connecting hole 240, and the hinge 140 is inserted into the first connecting hole 240 and the panel 100, so that the first web member 200 is rotatably connected to the panel 100 through the first connecting hole 240.
In an embodiment, referring to fig. 8 and 9, one end of the first web member 200 is rotatably connected to the first rotating portion 110, and one end of the first web member 200 has a first rotating groove 220 for receiving the second rotating portion 120. As such, the first web member 200 is rotatably mounted to one end of the panel 100 by the first rotating portion 110. The first rotating portion 110 is used not only for the rotational connection between the panels 100 but also for the rotational connection between the first web member 200 and the panels 100, simplifying the structure of the panels 100 and facilitating the reduction of the manufacturing cost of the panels 100. In which one end of the first web member 200 has a first rotating groove 220 for receiving the second rotating part 120, thereby preventing interference between the first web member 200 and the first rotating part 110.
In another embodiment, referring to fig. 8 and 9, one end of the first web member 200 is rotatably connected to the first rotating portion 110, the first rotating portion 110 has a second rotating groove 111 for accommodating the first web member 200, and the second rotating portion 120 has a third rotating groove 121 for accommodating the first rotating portion 110. The first rotating portion 110 is used not only for the rotational connection between the panels 100 but also for the rotational connection between the first web member 200 and the panels 100, simplifying the structure of the panels 100. Here, the rotation end of the first web member 200 is received in the second rotation groove 111 of the first rotation portion 110, and the third rotation groove 121 of the second rotation portion 120 receives the first rotation portion 110, thereby preventing interference among the first web member 200, the first rotation portion 110, and the second rotation portion 120.
In another embodiment, referring to fig. 8 and 9, the bottom of the panel 100 has two first rotating portions 110, the two first rotating portions 110 are spaced apart, and accordingly, the number of the second connecting portions is two. One end of the first web member 200 is rotatably connected to the first rotating part 110, and the number of the first web members 200 is two. One of the first web members 200 has a first rotating groove 220 that receives one of the second rotating portions 120. The other second rotating portion 120 has a third rotating groove 121 for receiving the first rotating portion 110, and the corresponding first rotating portion 110 has a second rotating groove 111 for receiving the first web member 200.
Specifically, referring to fig. 6, both ends of the second web member 300 are respectively provided with an insertion portion 320 and a groove 330 for receiving the insertion portion 320. Therefore, the adjacent second web members 300 are maintained on the same axis in an embedding manner instead of being distributed in a staggered manner, and the interference between the adjacent second web members 300 is avoided through the matching of the embedding part 320 and the groove 330, so that the rotation of the second web members 300 is not influenced.
In one embodiment, referring to fig. 8 and 9, the other end of the panel 100 has a third rotating portion 130, the third rotating portion 130 has a fourth rotating groove 131, the insertion portion 320 of the second web member 300 is located in the fourth rotating groove 131 and rotatably connected to the third rotating portion 130, and the groove 330 receives the third rotating portion 130. The panel 100 is rotatably connected to the second web member 300 by providing the third rotating portion 130, and the third rotating portion 130 has a fourth rotating groove 131 for receiving the insertion portion 320 of the second web member 300, and the third rotating portion 130 can be received in the receiving groove 330. In this way, the adjacent second web members 300 can be inserted into each other without affecting the arrangement of the third rotating portion 130 and the arrangement of the connection structure between the panel 100 and the second web members 300.
Specifically, one end of the second web member 300 has a second connecting through hole 350, and the hinge 140 is disposed through the second connecting through hole 350 and the panel 100, so that the second web member 300 is rotatably connected to the panel 100 through the second connecting through hole 350.
In one embodiment, referring to fig. 2, 4 and 7, the folding structure further includes a second chord 30, one end of the second chord 30 is rotatably mounted on the other end of one of the second web members 300, and the other end of the second chord 30 is rotatably mounted on the other end of the second web member 300 of the other folding structure. The second chord 30 is provided to enable interconnection between the two folded configurations.
Specifically, the structure between the first chord 20 and the second chord 30 is the same.
Specifically, referring to fig. 2, 4 and 7, the first chord 20 and the second chord 30 are respectively located at both sides of the second web member 300.
In one embodiment, referring to fig. 2, the other end of the first web member 200 has a first reserved connection hole 230 (refer to fig. 5), and the other end of the second web member 300 has a second reserved connection hole 340 (refer to fig. 6) corresponding to the first reserved connection hole 230. When the folding structure is unfolded, the fastening member 40 is inserted into the first reserved connecting hole 230 and the second reserved connecting hole 340, and the fastening member 40 fixedly connects the movable end of the first web member 200 and the sliding end of the second web member 300, so that the folding structure maintains the unfolded state.
Alternatively, the fasteners 40 are screws, pegs, rivets, or the like.
In one embodiment, referring to fig. 4 and 6, a side wall of the sliding end of the second web member 300 has a sliding member 310, and the sliding member 310 is adapted to slidably engage with the sliding groove 210 of the first web member 200. The other side wall of the sliding end of the second web member 300 has a mounting projection 360.
The two ends of the first chord 20 are provided with third reserved connecting holes 21, and the first chord 20 is rotatably sleeved on the mounting protrusion 360 or the sliding part 310 through the third reserved connecting holes 21 to be rotatably connected with the second web member 300. Specifically, one end of the first chord 20 is rotatably sleeved on the mounting protrusion 360 of one of the second web members 300 through the third reserved connection hole 21, and the other end of the first chord 20 is rotatably sleeved on the sliding member 310 of the other second web member 300 through the third reserved connection hole 21.
Both ends of the second chord 30 have fourth reserved connection holes 31. The second chord 30 is rotatably sleeved on the mounting protrusion 360 or the sliding member 310 through the fourth reserved connecting hole 31, so as to be rotatably connected with the second web member 300. Specifically, one end of the second chord 30 is rotatably sleeved on the sliding member 310 of one of the second web members 300 through the fourth reserved connecting hole 31, and the other end of the second chord 30 is rotatably sleeved on the mounting protrusion 360 of the other second web member 300 through the fourth reserved connecting hole 31.
For example, referring to fig. 2, 4, 6 and 7, two side walls of a sliding end of the second web member 300 are respectively provided with a sliding member 310 and an installation protrusion 360, the sliding end of the second web member 300 is slidably connected to the first web member 200 through the sliding member 310, two sides of the second web member 300 are respectively provided with a first chord 20 and a second chord 30, one end of the first chord 20 is rotatably sleeved on one of the sliding member 310 and the installation protrusion 360 through a third reserved connection hole 21, and one end of the second chord 30 is rotatably sleeved on the other of the sliding member 310 and the installation protrusion 360 through a fourth reserved connection hole 31.
In one embodiment, the first and second web members 200, 300, the first and second chords 20, 30 are one of box-shaped, i-shaped, or circular members.
In one embodiment, the first and second web members 200, 300, the first and second chords 20, 30 are one of steel, aluminum, or carbon fiber members.
The folding structure and the folding bridge provided by the invention are assembled by a plurality of identical folding units 10, the folding units 10 can be manufactured in a mechanical factory in advance in a flowing manner, a quantity splicing scheme is formulated in the factory according to requirements, and the specific size of an individual part can be designed according to the structural length and the bearing requirement. Therefore, the folding structure and the folding bridge are suitable for batch production and flow manufacturing, and the manufacturing cost is greatly reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A folding structure characterized by: including first chord member and two folding units, folding unit includes panel, first web member and second web member, the one end of first web member rotate install in the one end of panel, the one end of second web member rotate install in the other end of panel, the other end of second web member can be followed the one end of first web member slides extremely the other end of first web member, the both ends of first chord member rotate respectively connect in two folding unit the other end of second web member, one of them folding unit the one end of panel and another folding unit the other end of panel is connected.
2. The folding structure of claim 1, wherein: the first web member has a runner extending from one end of the first web member to the other end of the first web member, and the other end of the second web member has a slider in sliding engagement with the runner.
3. The folding structure of claim 2, wherein: and one side of one of the second web members adjacent to the other web member is provided with the sliding member, and the other side of the other web member is provided with the sliding member.
4. The folding structure of claim 1, wherein: the two ends of the second web member are respectively provided with an embedded part and a groove for accommodating the embedded part.
5. The folding structure of claim 1, wherein: the first web member comprises a first side bar and a second side bar which are arranged side by side, and the second web member and the first chord member are positioned between the first side bar and the second side bar.
6. The folding structure of claim 5, wherein: the first web member further includes a connecting member connecting the first side bar and the second side bar.
7. The folding structure of claim 1, wherein: the folding structure further comprises a second chord, one end of the second chord is rotatably mounted at one end of the second web member, and the other end of the second chord is rotatably mounted at the other end of the second web member of the other folding structure.
8. The folding structure of claim 7, wherein: the first chord member and the second chord member are respectively positioned at two sides of the second web member.
9. The folding structure of any one of claims 1 to 8, characterized in that: the other end of the first web member is provided with a first reserved connecting hole, and the other end of the second web member is provided with a second reserved connecting hole corresponding to the first reserved connecting hole.
10. A folding bridge, its characterized in that: comprising two or more of the folded structures of any one of claims 1 to 9, the panels of two or more of the folded structures being connected in series.
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| CN112761057B (en) | 2022-12-23 |
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