Sliding rail linkage type fast folding and unfolding dome supporting structure

Abstract

The sliding rail linkage type fast folding and unfolding dome supporting structure comprises a first bottom plate, a second bottom plate and a plurality of frames, the first bottom plate and the second bottom plate are connected in a hinged mode through two hinges, a telescopic column is fixedly arranged at the midpoint of one side of the first bottom plate, and a top disc is fixedly arranged at the extending end of the upper end face of the telescopic column; a first stretching assembly is installed in the top disc, a second stretching assembly is installed in the first bottom plate, and the second stretching assembly comprises a guide plate rotationally connected with the lower end of the telescopic column in a sleeving mode, a plurality of first connecting plates and second connecting plates with one ends rotationally connected with the first connecting plates through rotating shafts. Through the design that the sliding rail grooves and the frames are spliced and combined with the stretching assemblies, connection between the mounting blocks and the frames is convenient and simple, a user can quickly carry out necessary assembly and disassembly, and therefore use convenience, stability and durability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tent - type folding and unfolding structures, and particularly to a slide - rail linkage - type rapid folding and unfolding dome support structure. Background Art

[0002] (1) Structural defects of existing folding and unfolding dome - shaped tents: The deployment mechanisms of current mainstream foldable tents mainly rely on hinges, springs or inflatable frames for deployment, but their mechanical designs have the following common problems. For example, the lack of deployment synchronization. Umbrella - type tents: They are easy to be folded and stored, but rely on the articulated deployment of umbrella - shaped radiation skeletons. Each skeleton rod moves independently. The component processing is cumbersome and it is easy to cause asynchronous deployment due to uneven friction, resulting in structural skew or even jamming. Spherical - crown - shaped sunshades: They rely on a single support rod to bear force. After deployment, additional guy wires are required for fixation. They have poor ground adaptability and wind resistance; they have a small storage volume and poor stability. Inflatable tents: They have a small storage volume and are easy to fold and carry, but due to the lack of a rigid skeleton, such tents have poor wind pressure resistance and are prone to collapse due to the impact and deformation inside the fabric. They have high requirements for fabric quality and are not suitable for scenarios with too large a deployment space requirement. Repeated inflation and deflation are likely to cause fatigue cracking of the seams; the deployment convenience is not high. Scissor - brace tents: The inclined awning surface formed by the diagonal braces affects the entire use space and has a small capacity. The support connection needs to be joined with the membrane structure, and the deployment process is likely to cause damage to the membrane structure. Stress concentration is likely to occur at the connection during folding.

[0003] (2) Shortcomings in adaptability to extreme environments: The existing dome - shaped tent structures expose problems such as insufficient material weather resistance (conventional membrane materials such as nylon / polyester membrane materials become brittle and break below - 50°C) and low deployment efficiency (most folding and unfolding tent - type structures require multiple people to cooperate for deployment, with a long deployment time, lacking an efficient linkage mechanism and being difficult to meet the emergency rapid response requirements in extreme environments).

[0004] The folding and unfolding structure described in this patent has the characteristics of rapid deployment, high efficiency, stability and strong mobility. Through the slide rail linkage multi-stage extension mechanism and the composite design of Kevlar membrane-steel frame, combined with an efficient unfolding mechanism that can quickly respond to requirements, it is applicable to multi-field scenarios and can also ensure reliable operation in extreme environments. In the civil aspect, it can be widely used in temporary sheds, economical warehouses, etc. Especially in sudden disasters (such as earthquakes, floods, and epidemics), it can quickly build emergency rescue spaces, medical treatment centers and command and control platforms, significantly reducing disaster losses. In the military field, as camping housing, weapon shelters, combat command centers and field medical aid stations, it significantly improves the logistics support and troop mobility capabilities. In addition, with the advantages of foldable storage and transportation, deployment convenience and efficient space utilization, this structure can also be extended to the aerospace field, such as the deployment structure of extraterrestrial (such as the moon, Mars) habitats. The hybrid structure of steel frame plus Kevlar membrane enables it to adapt to extreme environmental conditions outside the earth, such as extreme low temperature alternation and pressure difference inside and outside the structure. Its characteristics of not requiring complex foundations and strong site adaptability further broaden its application potential in temporary and mobile scenarios. Summary of the Invention

[0005] Aiming at the defects in the prior art, the present invention provides a slide rail linkage type rapid folding and unfolding dome support structure, including a first bottom plate, a second bottom plate and a plurality of frames. The first bottom plate and the second bottom plate are hinged and connected through two hinges. A telescopic column is fixedly arranged at the midpoint on one side of the first bottom plate. A top plate is fixedly arranged at the extended end of the upper end surface of the telescopic column. A first extension component is installed inside the top plate and a second extension component is installed inside the first bottom plate. The second extension component includes a guide plate rotatably sleeved at the lower end of the telescopic column, a plurality of first connecting plates and a second connecting plate whose one end is rotatably connected to the first connecting plate through a rotating shaft;

[0006] Among the plurality of first connecting plates, the outermost first connecting plate is rotatably connected to the end of the guide plate away from the telescopic column through a connecting column. One ends of the plurality of first connecting plates and the second connecting plates away from the rotating shaft are fixedly connected with connecting columns, and a toothed block is fixedly arranged on one side of the outer wall of the connecting column;

[0007] Installation blocks are fixedly arranged on the upper end surfaces of the plurality of connecting columns. Protruding blocks extending outwards are arranged at the front and rear ends of the plurality of installation blocks. Membrane structures adapted to the upper end surfaces protruding forward and backward with the installation blocks are fixedly arranged at both ends of the plurality of frames and are slidably clamped on the installation blocks.

[0008] Furthermore, the first extension component adopts a scaled-down extension component with the same structure as the second extension component.

[0009] Furthermore, bottom blocks are fixedly arranged at one side and the front, rear and end positions of the lower end surfaces of the first bottom plate and the second bottom plate.

[0010] Further, a second track groove is provided at the outer edge of the upper end surface of the first base plate, and a first track groove is provided at the outer edge of the upper end surface of the second base plate near the rear end. The first track groove is connected to the second track groove in a penetrating manner, and a plurality of the mounting blocks are all slidably arranged in the second track groove.

[0011] Further, the lower end of the outermost connecting column away from the guiding plate among the plurality of connecting columns is rotatably arranged on the bottom end surface of the first base plate through a bearing, and the length of the first track groove is the length of 3 / 2 semicircles.

[0012] Further, a plurality of support plates are circumferentially arranged at the upper end positions of the inner walls of the first base plate and the second base plate where the second extension assembly is located, and a first cushion plate and a second cushion plate are respectively embedded at the upper ends of the plurality of support plates inside the first base plate and the second base plate.

[0013] Further, the plurality of frames are connected to each other by an external membrane structure between two by two, and the membrane structure is made of Kevlar membrane. The frame helps to better distribute the external load, and is well integrated with the membrane structure, and can adapt to both the unfolded and folded states of the membrane at the same time, reducing the risk of tearing of the membrane structure. A set of engaging teeth among the plurality of engaging teeth located at the lower ends of the first connecting plate and the second connecting plate are engaged with each other two by two.

[0014] Further, after the plurality of frames are unfolded, there are gaps at the head and tail ends to form an entrance, and a sealing door is provided on the membrane structure arranged on the frames at the head and tail ends through a zipper, and the sealing door is made of Kevlar membrane.

[0015] The beneficial effects of the present invention are reflected in:

[0016] Through the hinge design of the first base plate and the second base plate, combined with the telescopic column system, extremely convenient unfolding and folding can be achieved, greatly shortening the erection and disassembly time. The plurality of frames are connected by an external membrane structure made of Kevlar membrane material, which has characteristics such as high tensile strength, resistance to extreme high and low temperatures (long-term use temperature range: -196°C to +300°C), good flexibility, and low coefficient of thermal expansion, ensuring the overall stability of the structure in extreme temperature environments. Through the design of the sliding track groove and the splicing combination of the frame and the extension assembly, the connection between the mounting block and the frame is convenient and simple, and the user can easily perform the necessary assembly and disassembly, thereby improving the usability, stability and durability. The hybrid structure form design combines the structural strength of the rigid structure and the storage capacity of the membrane structure. The dome shape can achieve significant savings in terms of weight, packaging volume, cost and installation man-hours on the one hand; on the other hand, it also performs relatively well in terms of dispersing structural stress, preventing sudden structural failure, and maintaining structural stability, and is a good choice for dealing with extreme environments such as internal and external pressure differences and extreme temperature fluctuations. Description of the Drawings

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0018] Figure 1 Isometric structure schematic diagram of the present invention;

[0019] Figure 2 Partial top view structure schematic diagram of the present invention;

[0020] Figure 3 Of the present invention Figure 1 Top view structure schematic diagram;

[0021] Figure 4 Of the present invention Figure 1 Partial bottom sectional structure schematic diagram;

[0022] Figure 5 Folded structure schematic diagram of the first bottom plate and the second bottom plate of the present invention;

[0023] Figure 6 Top view structure schematic diagram of the second extension assembly of the present invention;

[0024] Figure 7 Top view structure schematic diagram of the second extension assembly of the present invention;

[0025] Figure 8 Unfolded structure schematic diagram of the present invention;

[0026] Figure 9 Partial structure schematic diagram of the frame of the present invention.

[0027] In the drawings,

[0028] 1. Top plate; 2. Telescopic column; 3. Frame; 4. First bottom plate; 5. Second bottom plate; 6. First track groove; 7. First extension assembly; 8. Second extension assembly; 801. Guide plate; 802. First connecting plate; 803. Second connecting plate; 804. Connecting column; 805. Tooth block; 806. Mounting block; 9. Hinge; 10. Bottom block; 11. Second track groove; 12. First cushion plate; 13. Support plate; 14. Second cushion plate; 15. Membrane structure; 16. Entrance. Specific embodiments

[0029] The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0030] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present invention belongs.

[0031] As Figures 1-9 shown,

[0032] A sliding rail linkage type rapid folding and unfolding dome support structure includes a first bottom plate 4, a second bottom plate 5 and a plurality of frames 3. The first bottom plate 4 and the second bottom plate 5 are hinged and connected by two hinges 9. A telescopic column 2 is fixedly arranged at the midpoint on one side of the first bottom plate 4. A top plate 1 is fixedly arranged at the extended end of the upper end face of the telescopic column 2. A first stretching assembly 7 is installed inside the top plate 1 and a second stretching assembly 8 is installed inside the first bottom plate 4. The second stretching assembly 8 includes a guide plate 801 rotatably sleeved at the lower end of the telescopic column 2, a plurality of first connecting plates 802, and a second connecting plate 803 whose one end is rotatably connected to the first connecting plate 802 through a rotating shaft;

[0033] Among the plurality of first connecting plates 802, the outermost first connecting plate 802 is rotatably connected to the end of the guide plate 801 away from the telescopic column 2 through a connecting column 804. One ends of the plurality of first connecting plates 802 and the second connecting plates 803 away from the rotating shaft are fixedly connected with a connecting column 804, and a tooth block 805 is fixedly arranged on one side of the outer wall of the connecting column 804;

[0034] Installation blocks 806 are fixedly arranged on the upper end faces of the plurality of connecting columns 804. Protruding blocks extending outwards are arranged at the front and rear ends of the plurality of installation blocks 806. Covers adapted to the upper end faces protruding front and rear of the installation blocks 806 are fixedly arranged at both ends of the plurality of frames 3 and are slidably clamped on the installation blocks 806.

[0035] Specifically, when in use, first unfold the first bottom plate 4 and the second bottom plate 5, and then raise the telescopic column 2 to the maximum height. The telescopic column 2 adopts the structure of a spring telescopic rod to realize telescopic adjustment. When the telescopic column 2 is adjusted to the maximum height, install the plurality of arc-shaped frames 3 on the first stretching assembly 7 at the lower end of the top plate 1 and the second stretching assembly 8 on the bottom plate. Covers are respectively arranged at the upper and lower ends of the frame 3. As Figure 9 shown, the opening directions of the covers arranged at the upper and lower ends are opposite and are made of rubber material; at this time, the installation and combination of the overall structure are completed, and the plurality of frames 3 can be rotated and folded, and the two bottom plates at the lower end can also be folded and stored for use.

[0036] Refer to Figure 2 andFigure 4 The first stretching component 7 adopts a proportionally reduced stretching component with the same structure as the second stretching component 8;

[0037] Specifically, the two adopt the same structural design, enabling smooth rotation and unfolding as well as storage effects when used in linkage up and down, making it more convenient to use.

[0038] Refer to Figure 3 On the lower end face of the first bottom plate 4 and the second bottom plate 5, bottom blocks 10 are fixedly arranged on one side and at the front and rear end positions;

[0039] Specifically, the bottom blocks 10 arranged at the lower end can play a supporting role after the first bottom plate 4 and the second bottom plate 5 are flipped and folded.

[0040] Refer to Figure 4 On the outer edge of the upper end face of the first bottom plate 4, a second track groove 11 is opened. On the outer edge of the upper end face of the second bottom plate 5 near the rear end, a first track groove 6 is opened. The first track groove 6 is connected throughly with the second track groove 11. A plurality of mounting blocks 806 are all slidably arranged in the second track groove 11;

[0041] Specifically, by using the annular track groove arranged at the upper end and arranging the mounting blocks 806 in the track groove, the mounting blocks 806 slide along the track groove during unfolding and storage, thereby realizing the circular surrounding opening and closing effect.

[0042] Refer to Figure 4 Among the plurality of connecting columns 804, the lowermost edge connecting column 804 away from the guide plate 801 is rotatably arranged on the bottom end face of the first bottom plate 4 through a bearing. The length of the first track groove 6 is 3 / 2 of the length of a semi - circle. Among the plurality of tooth - engaging blocks 805, a set of tooth - engaging blocks 805 adjacent to each other between the lower ends of the first connecting plate 802 and the second connecting plate 803 are engaged with each other;

[0043] Specifically, the guide plate 801 can not only realize the rotation effect, but also restrict the radius of the entire stretching component, ensuring that derailment does not occur during unfolding and opening and closing.

[0044] Refer to Figure 4 On the inner walls of the first bottom plate 4 and the second bottom plate 5, a plurality of support plates 13 are circumferentially arranged around the upper end position of the second stretching component 8. Inside the first bottom plate 4 and the second bottom plate 5, a first cushion plate 12 and a second cushion plate 14 are respectively embedded at the upper ends of the plurality of support plates 13;

[0045] Specifically, multiple support plates 13 are made of lightweight steel materials and are used to provide a supporting effect. The advantages of steel in this structure are also reflected in: (1) excellent low-temperature performance, still maintaining excellent fracture toughness at -196°C, ensuring the reliability of use in extreme environments; (2) processing economy, especially when used in the aerospace field, the cost is significantly reduced compared to commonly used materials such as aluminum alloys and titanium alloys. In Figure 4 only one support plate 13 is shown, and the remaining support plates 13 do not appear. The remaining support plates 13 are installed at equal intervals in a circumferential arrangement, allowing users to directly sit on the upper cushion for use.

[0046] Refer to Figure 8 , multiple frames 3 are connected to each other by a membrane structure 15, and the membrane structure 15 is made of kevlar membrane. After the multiple frames 3 are unfolded, there are gaps at the head and tail ends to form an entrance 16, and a sealing door is provided on the membrane structure 15 arranged on the head and tail end frames 3 through a zipper. The sealing door is made of kevlar membrane;

[0047] Specifically, during use, the membrane structure 15 and the multiple frames 3 form a whole. The membrane structures 15 on the adjacent frames 3 are in a hierarchical separation state, ensuring the foldability of the membrane structure 15; at the same time, a door installed through a zipper is designed to ensure the accessibility of the tent.

[0048] Working principle: During use, first unfold the first bottom plate 4 and the second bottom plate 5, and then raise the telescopic column 2 to the maximum height. When the telescopic column 2 is adjusted to the maximum height, install the multiple arc-shaped frames 3 on the first extension assembly 7 at the lower end of the top plate 1 and the second extension assembly 8 on the bottom plate by using the upper and lower housings; at this time, the installation combination of the overall structure of the whole structure is completed. Since the integrated membrane structure 15 is provided on the frame 3, when the frame 3 is manually pulled and rotated and unfolded under the linkage action of the upper and lower first extension assembly 7 and the second extension assembly 8, the whole membrane structure 15 encloses a dome-shaped tent structure, and then open the door at the front end of the membrane structure 15 to use.

[0049] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. A sliding rail linkage type rapid folding and unfolding dome support structure, characterized in that: It includes a first bottom plate (4), a second bottom plate (5) and a plurality of frames (3). The first bottom plate (4) and the second bottom plate (5) are hingedly connected by two hinges (9). At the midpoint on one side of the first bottom plate (4), a telescopic column (2) is fixedly arranged. At the extended end of the upper end face of the telescopic column (2), a top plate (1) is fixedly arranged. Inside the top plate (1), a first stretching component (7) is installed, and inside the first bottom plate (4), a second stretching component (8) is installed. The second stretching component (8) includes a guiding plate (801) rotatably sleeved at the lower end of the telescopic column (2), a plurality of first connecting plates (802), and a second connecting plate (803) whose one end is rotatably connected to the first connecting plate (802) through a rotating shaft; Among the plurality of first connecting plates (802), the outermost first connecting plate (802) is rotatably connected to the end of the guiding plate (801) away from the telescopic column (2) through a connecting column (804). At the ends of the plurality of first connecting plates (802) and the second connecting plate (803) away from the rotating shaft, connecting columns (804) are fixedly connected, and on one side of the outer wall of the connecting column (804), a tooth block (805) is fixedly arranged; On the upper end faces of the plurality of connecting columns (804), mounting blocks (806) are fixedly arranged. At the front and rear ends of the plurality of mounting blocks (806), protruding blocks extending outwards are provided. At both ends of the plurality of frames (3), film structures (15) adapted to the front and rear protruding upper end faces of the mounting blocks (806) are fixedly arranged and slidably clamped on the mounting blocks (806).

2. The rapid folding and unfolding dome support structure with sliding rail linkage according to claim 1, characterized in that: The first stretching component (7) adopts a stretching component which is a proportionally reduced structure of the same structure as the second stretching component (8).

3. The rapid folding and unfolding dome support structure with sliding rail linkage according to claim 1, characterized in that: On one side and at the front, rear and lower end faces of the first bottom plate (4) and the second bottom plate (5), bottom blocks (10) are fixedly arranged.

4. A sliding rail linkage type rapid folding and unfolding dome support structure according to claim 1, characterized in that: On the outer edge of the upper end face of the first bottom plate (4), a second track groove (11) is formed. On the outer edge of the upper end face of the second bottom plate (5) near the rear end, a first track groove (6) is formed. The first track groove (6) and the second track groove (11) are connected through. The plurality of mounting blocks (806) are all slidably arranged in the second track groove (11).

5. The sliding rail linkage type rapid folding and unfolding dome support structure according to claim 4, wherein: The lower end of the outermost connecting column (804) away from the guiding plate (801) among the plurality of connecting columns (804) is rotatably arranged on the bottom end face of the first bottom plate (4). The length of the first track groove (6) is the length of 3 / 2 semi - circles.

6. The quick folding and unfolding dome support structure with slide rail linkage according to claim 1, characterized in that: A plurality of support plates (13) are circumferentially arranged around the inner walls of the first bottom plate (4) and the second bottom plate (5) at the upper position of the second stretching component (8). Inside the first bottom plate (4) and the second bottom plate (5) at the upper positions of the plurality of support plates (13), a first cushion plate (12) and a second cushion plate (14) are respectively embedded.

7. A sliding rail linkage type rapid folding and unfolding dome support structure according to claim 1, characterized in that: The plurality of frames (3) are connected to each other by an external film structure (15), and the film structure (15) is made of kevlar film. Among the plurality of tooth blocks (805), a set of tooth blocks (805) adjacent to each other at the lower ends of the first connecting plate (802) and the second connecting plate (803) are meshed with each other.

8. A sliding rail linkage type rapid folding and unfolding dome support structure according to claim 7, characterized in that: After multiple said frames (3) are unfolded, there are gaps at the head and tail ends to form an entrance (16), and a sealing door is provided on the membrane structure (15) arranged on the head and tail end frames (3) through a zipper, wherein the sealing door is made of kevlar membrane.

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