CN214530140U - Expandable structure and expandable bridge - Google Patents

Abstract

The utility model belongs to the technical field of civil structure engineering technique and specifically relates to a deployable structure and deployable bridge are related to. The utility model provides a deployable 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 both ends of first chord member are rotated respectively and are connected in the other end of the second web member of two folding units, and the one end of the panel of one of them folding unit is rotated with the other end of the panel of another folding unit and is connected. The utility model provides a but expanding structure adopts two folding unit rotation to connect to folding unit exhibition back, can overturn near each other between two adjacent folding units, but shorten expanding structure's length greatly, be favorable to transporting and storing, solve current interim bridge and accomodate the technical problem that the effect is poor.

Description

Expandable structure and expandable bridge

Technical Field

The utility model belongs to the technical field of civil structure engineering technique and specifically relates to a deployable structure and deployable bridge are related to.

Background

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.

The deployable structure covers various movable mechanisms, tension space structures and other novel structures which are concerned in the fields of domestic and foreign building structures, aerospace and aviation and the like, and is different from the traditional structure in that the deployable structure internally comprises mechanism displacement, and has form sensitivity and driving complexity. The deployable structure is generally a multi-degree-of-freedom over-constrained structure, has the characteristics of a movable mechanism in the process of deployment, and has the characteristic of a stable structure after deployment.

According to the utility model discloses the correlation technique that the people learned, interim nature bridge is big multitype based on cutting formula hinge unit as its deployable unit, then a plurality of units splice to satisfy the demand of span, make by hydraulic means as actuating system at last and cut formula hinge unit and expand. However, such temporary bridge based on the scissor hinge unit has poor storage effect, occupies a large space after being stored, and is inconvenient to transport and store. Therefore, it is very important to develop a novel temporary bridge convenient to store, and the diversity of the temporary bridge can be enriched.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a deployable structure and deployable bridge aim at solving current interim bridge and accomodate the poor technical problem of effect.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a deployable 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 rotates to be 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 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 expandable structure further comprises a second chord member, one end of the second chord member is rotatably mounted on the other end of one of the second web members, and the other end of the second chord member is rotatably mounted on the other end of the second web member of the other expandable 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 expandable bridge comprises more than two expandable structures, wherein the panels of the more than two expandable structures are sequentially connected.

The utility model has the advantages that: the utility model provides a but expanding structure adopts the one end of the panel of one of them folding unit and the other end of another folding unit's panel to rotate and be connected to folding unit exhibition back, can overturn close to each other between two adjacent folding units, but shorten expanding structure's length greatly, be favorable to transporting and storing, solve current temporary bridge and accomodate the technical problem that the effect is poor.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced 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 without inventive labor.

Fig. 1 is a schematic view of a flat expandable bridge according to an embodiment of the present invention;

FIG. 2 is a schematic view of an expandable bridge according to an embodiment of the present invention

Fig. 3 is a schematic structural diagram of an expandable 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 an expandable bridge according to an embodiment of the present invention before being flattened;

fig. 11 is a second schematic view of the expandable 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 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 exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present 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 those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

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 limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 and 2, an expandable bridge includes more than two expandable structures.

Referring to fig. 3 to 7, an expandable 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 expandable structure is in a flat state, the first web member 200, the second web member 300 and the first chord member 20 are all placed to be attached to the bottom of the panel 100.

Referring to fig. 2, 4 and 5, when the expandable structure is expanded, 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 open, and the first web member 200 and the second web member 300 maintain a sliding connection therebetween. 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 expandable structure expands 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, but the switching of open and flat state and expansion state is realized through mechanical form to the deployable structure, need not power supplies such as pneumatic cylinder, reduces cost, expandes fast convenient.

The utility model provides a but expanded structure adopts first web member 200 and second web member 300 to rotate respectively and installs the both ends at panel 100, first web member 200 and second web member 300 sliding connection, and two folding unit 10 are connected to first chord member 20 to can expand with mechanical form, drive by gravitational potential energy, it is convenient fast to expand, and economic nature is good, solves the current technical problem that interim nature bridge cost is high.

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.

Please refer to fig. 1 and fig. 2, in the expandable bridge provided by the present invention, the panels 100 of the expandable structures are connected in sequence, so as to reasonably select a certain number of expandable structures according to the length requirement of erecting the bridge, and the expandable structures are connected in sequence, and can be assembled and extended along the span direction of the bridge.

The utility model provides an expandable bridge has following advantage:

first, the utility model provides a deployable bridge can provide a temporary new traffic line fast after old bridge is destroyed or when will strideing across dangerous and steep topography, and guarantee rescue goods and materials motorcade, engineering machine tool can stride across the barrier fast, in time arrives at the disaster area.

Second, the utility model provides a but expansion bridge adopts the mechanical structure of slidingtype, expandes the expandable structure through the action of gravitational potential energy, and the expansion mode is simple, convenient, but the expandable structure cross-section height-increasing after the expansion, and rigidity and intensity increase substantially, possess good leap ability.

Third, the utility model provides a deployable bridge is repeatedly usable not only, overcomes the shortcoming that known interim bridge makes the cost high because of using hydraulic means in a large number moreover.

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. The second web member 300 adopts the cooperation of slider 310 and spout 210, realizes can sliding to the other end of first web member 200 from the one 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 deployable 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 deployable 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 deployable 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 can be understood that the number of the first web members 200 and the number of the second web members 300 are in one-to-one correspondence, 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 includes two side bars spaced apart to improve the load bearing capacity of the deployable structure so that the deployable 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, please refer 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 the other folding unit 10, so that the foldable structure can be further turned over during the storage process, thereby greatly shortening the length of the foldable structure and facilitating the 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 expandable 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 expandable structure. The second chord 30 is provided to enable interconnection between the two deployable structures.

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 expandable structure is expanded, the fastener 40 is inserted into the first and second reserved connection holes 230 and 340, and the fastener 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 expandable structure maintains the expanded 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 utility model provides a deployable structure and deployable bridge form by the equipment of a plurality of the same folding unit 10, and folding unit 10 can carry out the flowing water in advance at the machinery factory and make quantity concatenation scheme according to the demand in the mill, can the specific size of individual part of pertinence design according to structural length and bearing requirement. Therefore, the expandable structure and the expandable bridge are suitable for batch production and flow manufacturing, and the manufacturing cost is greatly reduced.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A deployable structure, comprising: 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 rotates and connects.

2. The deployable structure of claim 1, wherein: 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.

3. The deployable structure of claim 2, wherein: the bottom of the panel is provided with two first rotating parts which are arranged at intervals.

4. The deployable structure of claim 2, wherein: 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.

5. The deployable structure of claim 2, wherein: one end of the first web member is rotatably connected with the first rotating portion, and one end of the first web member is provided with a first rotating groove for accommodating the second rotating portion.

6. The deployable structure of claim 2, wherein: one end of the first web member is connected to the first rotating portion, the first rotating portion has a second rotating groove for accommodating the first web member, and the second rotating portion has a third rotating groove for accommodating the first rotating portion.

7. The deployable 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.

8. The deployable structure of claim 7, wherein: the other end of panel has the third rotation portion, the third rotation portion has the fourth and rotates the groove, the embedding portion of second web member is located the fourth rotates the inslot and with the third rotation portion rotates and is connected, the recess holds the third rotation portion.

9. The deployable structure according to any one of claims 1 to 8, 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.

10. An expandable bridge, comprising: comprising two or more deployable structures as claimed in any one of claims 1 to 9, the panels of two or more of said deployable structures being connected in series.

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