Self-stretching foldable guide rail system suitable for multiple terrains

Abstract

The invention relates to the technical field of folding assembly type building structure guide rails, in particular to a self-stretching foldable guide rail system suitable for multiple terrains. Comprising three transverse guide rails and three longitudinal guide rails, the longitudinal guide rails are located at the top ends of the transverse guide rails, the bottom ends of the longitudinal guide rails are rotationally connected with sliding rollers, sliding supports matched with the folding assembly type frame are installed at the tops of the three longitudinal guide rails, and driving mechanisms used for driving the sliding supports to move are installed on the three longitudinal guide rails. A plurality of height adjusting assemblies are installed at the bottom of each transverse guide rail. According to the self-stretching foldable guide rail system adapting to the multiple terrains, the installation and construction efficiency of a folding assembly type structure is greatly improved, the structure is rapidly unfolded to form a safe and stable shelter place when needed, the structure can be rapidly folded into a small-size system when not needed, and the multi-scene erecting requirement can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of foldable assembled building structure guide rails, and in particular to a self-expandable foldable guide rail system adaptable to various terrains. Background Art

[0002] Folding prefabricated structures are often used in temporary housing construction to improve construction efficiency. When needed, the structure can be quickly deployed to create a safe and stable shelter. When not needed, it can be quickly folded into a small system to meet the needs of various scenarios. The key to achieving efficient installation and deployment of folding prefabricated building structures lies in the design of a guide rail system that adapts to its movement mode. However, the guide rails of existing folding prefabricated building structures still have the following shortcomings in practical application:

[0003] First, existing rail systems have large components, making installation and transportation inefficient and often requiring additional mechanical devices for assembly. Second, existing rail systems are primarily used in flat terrain, making them difficult to adapt to complex terrain, such as post-disaster rescue operations. This limits the widespread adoption of foldable prefabricated building structures.

[0004] When using the above technology, it was found that the following technical problems exist in the existing technology: the installation and transportation efficiency of the guide rails are low, and it is difficult to meet the assembly application requirements of complex terrain. Therefore, a self-expanding and foldable guide rail system that can adapt to multiple terrains is designed to provide a technical solution to the above technical problems. Summary of the Invention

[0005] Based on this, it is necessary to provide a self-expanding foldable guide rail system that is adaptable to multiple terrains to solve the technical problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A self-expanding foldable guide rail system that can adapt to multiple terrains includes three transverse guide rails and three longitudinal guide rails. The longitudinal guide rails are located at the top of the transverse guide rails, and the bottom of the longitudinal guide rails is rotatably connected to a sliding roller. The tops of the three longitudinal guide rails are all installed with sliding supports that are adapted to folding assembled frames. The three longitudinal guide rails are all installed with a driving mechanism for driving the sliding supports to move. The bottom of each transverse guide rail is installed with multiple height adjustment components.

[0008] As a preferred embodiment of the self-extending foldable guide rail system that can adapt to multiple terrains provided by the present invention, each of the height adjustment components includes a mechanical axis, a rotating tray and a connecting base, the top of the mechanical axis is fixed to the transverse guide rail, the output end of the transverse guide rail is fixed with a rotating tray, and the bottom of the rotating tray is fixed with a connecting base.

[0009] As a preferred embodiment of the self-expanding and foldable guide rail system that can adapt to multiple terrains provided by the present invention, each of the longitudinal guide rails is composed of a longitudinal middle guide rail and two longitudinal side guide rails, and both ends of the longitudinal middle guide rail are connected to the longitudinal side guide rails through the cooperation of the fitting page and the guide rail connecting ear plate.

[0010] As a preferred embodiment of the self-expanding and foldable guide rail system that can adapt to multiple terrains provided by the present invention, the driving mechanism includes a longitudinal transmission shaft and a transverse transmission shaft. The interior of the longitudinal middle guide rail is connected to the longitudinal transmission shaft for rotation, and the outer side of the longitudinal transmission shaft is threadedly connected to the sliding support. The interior of the longitudinal middle guide rail near one end of the longitudinal side guide rail is connected to the transverse transmission shaft for rotation, and the transverse transmission shaft is meshed with the longitudinal transmission shaft through bevel gears.

[0011] As a preferred embodiment of the self-expandable foldable guide rail system adapted to various terrains provided by the present invention, both ends of the sliding support are rotatably connected to hydraulic struts.

[0012] As a preferred embodiment of the self-extending foldable guide rail system that adapts to multiple terrains provided by the present invention, the sliding support includes a sliding block, a sliding wheel, a cross support block, a hinge support ear plate and a support plate. The outer side of the sliding block is slidably connected to the longitudinal guide rail, and the two sides of the sliding block are evenly rotatably connected with sliding wheels. The top of the sliding block is fixed with a cross support block, and both ends of the cross support block are fixed with hinge support ear plates, and the hinge support ear plates are rotatably connected to the bottom end of the hydraulic strut, and the top of the cross support block is fixed with a support plate.

[0013] As a preferred embodiment of the self-expanding foldable guide rail system adapted to multiple terrains provided by the present invention, a transmission hole is provided at the center of the sliding block, and the transmission hole is threadedly connected to the outer side of the longitudinal transmission shaft.

[0014] As a preferred embodiment of the self-expanding foldable guide rail system that can adapt to multiple terrains provided by the present invention, a limiting mechanism for positioning is installed at the bottom of the longitudinal guide rail and at both ends of the transverse guide rail. The limiting mechanism includes a fixed shell, an adjustment block and a limiting plate. The fixed shell is fixed to the longitudinal guide rail, and the internal sliding connection of the bottom end of the fixed shell is provided with an adjustment block, and a limiting plate is provided at the bottom of the adjustment block.

[0015] As a preferred embodiment of the self-extending foldable guide rail system that can adapt to multiple terrains provided by the present invention, an adjusting drive motor is fixed to the top of the fixed shell, the output end of the adjusting drive motor is connected to a first gear, both ends of the first gear are meshed with a second gear, a rotating threaded rod is fixed to the bottom of the second gear, and the rotating threaded rod is rotatably connected to the fixed shell, and the outer side of the rotating threaded rod is threadedly connected to the adjusting block.

[0016] As a preferred embodiment of the self-extending foldable guide rail system that adapts to multiple terrains provided by the present invention, an anti-slip column is fixed at the top of the limit plate and at a position corresponding to the adjusting block, the outer side of the anti-slip column is rotatably connected to the adjusting block, a travel groove is provided at one end of the bottom of the adjusting block and at the outer side of the anti-slip column, a travel column is fixed at the top of the limit plate and at a position corresponding to the travel groove, the travel column is slidably connected to the travel groove, a return spring is fixed inside the travel groove and at both ends of the travel column, a stop groove is provided at the other end of the bottom of the adjusting block, a stop bolt is threadedly connected to the inside of the limit plate and at a position corresponding to the stop groove, and the tail end of the stop bolt is slidably connected to the stop groove.

[0017] It can be seen without a doubt that the above-mentioned technical solution of this application can definitely solve the technical problem to be solved by this application.

[0018] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0019] The present invention provides a self-expanding foldable guide rail system that can adapt to multiple terrains, greatly improving the installation and construction efficiency of the folding assembled structure. When needed, the structure can be quickly unfolded to form a safe and stable shelter. When not needed, it can be quickly folded into a small volume system, which can meet the needs of setting up in multiple scenarios.

[0020] The present invention is applicable to such frame assembly processes, can provide stable guiding support under various terrain conditions, and is widely used in the fields of mobile homes, temporary buildings, etc.

[0021] The present invention cooperates with the fixed shell, the adjustment block and the limit plate, so that when the longitudinal guide rail slides on the top of the transverse guide rail, it can be prevented from disengaging by the limitation of the limit mechanism, and the rotation of the limit plate at the bottom of the adjustment block can be limited by the anti-rotation bolt. At the same time, when there is no anti-rotation bolt restriction, the position of the limit plate can be avoided or the longitudinal guide rail can be disengaged from the transverse guide rail by rotating the limit plate at the bottom of the adjustment block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the installation process of the first embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the expansion of the first embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the transverse guide rail structure of the present invention;

[0026] Figure 4 It is a schematic diagram of the longitudinal guide rail structure of the present invention;

[0027] Figure 5 This is a detailed diagram of the longitudinal intermediate substructure of the present invention;

[0028] Figure 6 It is a schematic diagram of the longitudinal side guide structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the folding of a single longitudinal guide rail of the present invention;

[0030] Figure 8 This is a schematic diagram of the middle support structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the corner support structure of the present invention;

[0032] Figure 10 This is a structural diagram of embodiment 2 of the present invention;

[0033] Figure 11 Schematic diagram of the structure of the limiting mechanism of the present invention;

[0034] Figure 12 This is a schematic diagram of the internal structure of the fixed shell of the present invention;

[0035] Figure 13 Schematic diagram of the internal structure of the regulating block of the present invention;

[0036] Figure 14 This is a schematic structural diagram of the anti-rotation bolt of the present invention;

[0037] Figure 15 It is a structural schematic diagram of the travel groove of the present invention.

[0038] Figure: 1. Transverse guide rail; 2. Height adjustment assembly; 3. Longitudinal guide rail; 4. Longitudinal middle guide rail; 5. Longitudinal side guide rail; 6. Sliding support; 7. Hydraulic support rod; 8. Hydraulic control system; 9. Track electric control system; 10. Mechanical axis; 11. Rotating tray; 12. Connecting base; 13. Limiting side plate; 14. Roller; 15. Support limiting hole; 16. Hydraulic support rod hinge support; 17. Hydraulic support rod sleeve; 18. Hydraulic support rod shaft; 19. Assembly page; 20. Longitudinal transmission shaft; 21 , transverse transmission shaft; 22, guide rail connecting ear plate; 23, sliding block; 24, sliding wheel; 25, transmission hole; 26, cross support block; 27, hinge support ear plate; 28, support plate; 29, limiting mechanism; 30, fixed shell; 31, adjusting block; 32, limiting plate; 33, adjusting drive motor; 34, first gear; 35, second gear; 36, rotating threaded rod; 37, anti-slip column; 38, stroke column; 39, anti-rotation bolt; 40, reset spring; 41, stroke groove; 42, anti-rotation groove. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0043] Example 1

[0044] Reference Figures 1-9The foldable guide rails 3 are arranged on the top of the foldable guide rails 1 and the bottom of the foldable guide rails 3 are connected to the foldable guide rails 1 and the bottom of the foldable guide rails 3 are connected to the foldable guide rails 1. The foldable guide rails 3 are arranged on the top of the foldable guide rails 1 and the bottom of the foldable guide rails 3 are connected to the foldable guide rails 1 and the bottom of the foldable guide rails 3 are connected to the foldable guide rails 1 and the bottom of the foldable guide rails 3 are connected to the foldable guide rails 1 and the bottom of the foldable guide rails 3 are connected to the foldable guide rails 1 and the bottom of the foldable guide rails 3 are connected to the foldable guide rails 1 and the bottom of the foldable guide rails 3 are connected to the foldable guide rails 1 Similarly, the structural folding process is the opposite of the above process sequence.

[0045] Preferably, the bottoms of the longitudinal middle guide rail 4 and the longitudinal side guide rails 5 are fixed with limiting side plates 13, and the inner sides of the bottom ends of the limiting side plates 13 are rotatably connected to rollers 14, so that the longitudinal guide rails 3 slide and extend along the transverse guide rails 1 under the action of the driving force through the rollers 14;

[0046] A plurality of height adjustment components 2 are installed at the bottom of each transverse guide rail 1. Specifically, there can be three or more height adjustment components 2. Each height adjustment component 2 includes a mechanical axis 10, a rotating tray 11 and a connecting base 12. The top of the mechanical axis 10 is fixed to the transverse guide rail 1, and the output end of the transverse guide rail 1 is fixed with the rotating tray 11. The bottom of the rotating tray 11 is fixed with the connecting base 12, so that when the mechanical axis 10 is working, the connecting base 12 is driven by the rotating tray 11 to be raised and lowered, thereby adjusting the height of the transverse guide rail 1.

[0047] In this embodiment, the mechanical axis 10 is an electric push rod, a hydraulic rod or other existing technologies that can drive the rotating tray 11 to move up and down.

[0048] Each longitudinal guide rail 3 is composed of a longitudinal middle guide rail 4 and two longitudinal side guide rails 5. Both ends of the longitudinal middle guide rail 4 are connected to the longitudinal side guide rails 5 through the fitting pages 19 and the guide rail connecting ear plates 22. Specifically, the longitudinal middle guide rail 4 and the longitudinal side guide rails 5 can be installed by fitting pages 19, guide rails and corresponding bolts. At the same time, in order to reduce the transportation and placement length of the guide rails, the two longitudinal side guide rails 5 can be folded by fitting pages 19, and the sum of the lengths of the two longitudinal side guide rails 5 is exactly equal to the length of the longitudinal middle guide rail 4.

[0049] Preferably, support limiting holes 15 are evenly distributed inside the top end of the longitudinal side guide rail 5 away from the longitudinal middle guide rail 4.

[0050] The driving mechanism includes a longitudinal transmission shaft 20 and a transverse transmission shaft 21. The interior of the longitudinal middle guide rail 4 is connected to the longitudinal transmission shaft 20 for longitudinal rotation, and the outer side of the longitudinal transmission shaft 20 is threadedly connected to the sliding support 6, so that when the longitudinal transmission shaft 20 rotates, the sliding support 6 is driven to adjust on the longitudinal middle guide rail 4 through the outer thread. The interior of the longitudinal middle guide rail 4 near one end of the longitudinal side guide rail 5 is connected to the transverse transmission shaft 21 for rotation, and the transverse transmission shaft 21 is meshed with the longitudinal transmission shaft 20 through bevel gears, so that the rotation of the transverse transmission shaft 21 can drive the longitudinal transmission shaft 20 to rotate through two meshing bevel gears. A track electric control system 9 is fixed to one side of the longitudinal middle guide rail 4, and the output end of the track electric control system 9 is connected to the transverse transmission shaft 21, so that the operation of the track electric control system 9 drives the transverse transmission shaft 21 to rotate; thereby realizing the adjustment of the sliding support 6 at the top of the longitudinal guide rail 3;

[0051] Preferably, connecting fittings 19 and guide rail connecting ear plates 22 are provided at both ends of the longitudinal middle guide rail 4 for connecting the longitudinal side guide rails 5 at both ends.

[0052] Both ends of the sliding support 6 are rotatably connected to hydraulic struts 7, the push rods of the hydraulic struts 7 are connected to the main structure, and a hydraulic control system 8 is fixed to one side of the longitudinal middle guide rail 4. Under the control of the hydraulic control system 8, the driving force required for folding and unfolding can be applied;

[0053] In this embodiment, the hydraulic strut 7 includes a hydraulic strut hinge support 16, a hydraulic strut sleeve 17 and a hydraulic strut shaft 18. The bottom end of the hydraulic strut sleeve 17 is connected to the sliding support 6 through the hydraulic strut hinge support 16. When folded and transported, it can be rotated and placed in contact with the longitudinal middle guide rail 4. The sum of the lengths of the two hydraulic support rods in the retracted state is the length of the longitudinal middle guide rail 4, and the length of a single hydraulic support rod in the fully extended state is the design height of the main structure. The hydraulic strut 7 is controlled by the hydraulic control system 8 on the side of the middle longitudinal guide rail 3.

[0054] The sliding support 6 includes a sliding block 23, a sliding wheel 24, a cross support block 26, a hinge support ear plate 27 and a support plate 28. The outer side of the sliding block 23 is slidably connected to the longitudinal guide rail 3, and the sliding block 23 can only slide in translation inside the longitudinal guide rail 3. A transmission hole 25 is opened in the center of the sliding block 23. The transmission hole 25 is threadedly connected to the outer side of the longitudinal transmission shaft 20, so that the rotation of the longitudinal transmission shaft 20 drives the sliding block 23 to slide through the transmission hole 25. The two sides of the sliding block 23 are evenly rotatably connected with the sliding wheels 24, so that the sliding block 23 can slide more smoothly inside the longitudinal guide rail 3 through the sliding wheels 24;

[0055] A cross support block 26 is fixed to the top of the sliding block 23. At the same time, the cross support block 26 is located at the top of the longitudinal guide rail 3, and the cross support block 26 is connected to the bottom plate. Both ends of the cross support block 26 are fixed with hinged support ear plates 27, and the hinged support ear plates 27 are rotatably connected to the bottom end of the hydraulic strut 7, so that the hydraulic strut 7 can be rotated and adjusted on the cross support block 26 through the hinged support ear plates 27. A support plate 28 is fixed to the top of the cross support block 26, so that the main structure is connected through the support plate 28.

[0056] Preferably, the sliding support 6 of the longitudinal side guide rail 5 is a transmission support, which moves subserviently with the folding and unfolding of the structure. No transmission mechanism is provided inside it, and only support limit holes 15 are provided on the edge of the support and the guide rail to fix the position of the structure when it is fully unfolded. The rest of the structure is similar to the middle guide rail sliding support 6.

[0057] In this embodiment, there are three longitudinal guide rails 3 in total along the transverse direction, and the longitudinal middle guide rails 4 on both sides are exactly the same in structure. The hydraulic rod of the middle longitudinal guide rail 3 is placed above the sliding support 6 of the longitudinal side guide rails 5 on both sides. There is no transmission mechanism inside it. According to the folding and unfolding characteristics of the main structure, the longitudinal expansion is first achieved through the hydraulic drive of the longitudinal guide rails 3 on both sides and then the lateral expansion is completed by relying on the hydraulic drive of the middle longitudinal guide rail 3.

[0058] The self-expanding foldable guide rail system adapted to various terrains provided by the present invention is used as follows: during installation, the transverse guide rails 1 are first laid and installed according to the terrain conditions, and then the longitudinal guide rails 3 are laid in sequence on top of the transverse guide rails 1, so that the longitudinal guide rails 3 can slide and extend on top of the transverse guide rails 1 via sliding rollers 14. At the same time, a total of three longitudinal guide rails 3 are provided in the transverse direction, and the longitudinal middle guide rails 4 on both sides are of exactly the same structure. The hydraulic rod of the middle longitudinal guide rail 3 is placed above the sliding support 6 of the longitudinal side guide rails 5 on both sides, and no transmission mechanism is provided therein. According to the folding and unfolding characteristics of the main structure, the longitudinal guide rails 3 on both sides are first hydraulically driven to expand longitudinally, and then the middle longitudinal guide rail 3 is hydraulically driven to complete the transverse expansion;

[0059] When it is necessary to adjust the structure located at the top of the support plate 28, the transverse transmission shaft 21 can be driven to rotate by the operation of the track electronic control system 9, and the rotation of the transverse transmission shaft 21 drives the longitudinal transmission shaft 20 to rotate through two meshing bevel gears to achieve the adjustment of the sliding support 6 at the top of the longitudinal guide rail 3. At the same time, under the control of the hydraulic control system 8, the driving force required for the folding and unfolding of the hydraulic strut 7 can be applied.

[0060] Example 2

[0061] Reference Figure 10-15, a self-expanding foldable guide rail system that adapts to multiple terrains, a limiting mechanism 29 for positioning is installed at the bottom of the longitudinal guide rail 3 and at both ends of the transverse guide rail 1, so that the longitudinal guide rail 3 can be limited by the limiting mechanism 29 to be separated from the top of the transverse guide rail 1, and the limiting mechanism 29 includes a fixed shell 30, an adjusting block 31 and a limiting plate 32. The fixed shell 30 is fixed to the longitudinal guide rail 3, so that the fixed shell 30 can be fixed to the limiting side plate 13 on the longitudinal guide rail 3, thereby positioning the position of the fixed shell 30; the internal sliding connection of the bottom end of the fixed shell 30 is connected to the adjusting block 31, and the bottom of the adjusting block 31 is provided with a limiting plate 32, so that the lifting and lowering of the adjusting block 31 inside the fixed shell 30 drives the limiting plate 32 to rise and fall synchronously;

[0062] Preferably, the adjusting block 31 is rotatably connected to a roller at the bottom of the transverse guide rail 1 , thereby enabling the limiting plate 32 to translate at the bottom of the transverse guide rail 1 .

[0063] An adjustment drive motor 33 is fixed to the top of the fixed housing 30. The output end of the adjustment drive motor 33 is connected to a first gear 34. Both ends of the first gear 34 are meshedly connected to a second gear 35. A rotating threaded rod 36 is fixed to the bottom of the second gear 35. The rotating threaded rod 36 is rotatably connected to the fixed housing 30, so that the rotation of the first gear 34 drives the two rotating threaded rods 36 to rotate simultaneously through the two second gears 35. The outer sides of the rotating threaded rods 36 are threadedly connected to the adjustment block 31. The rotation directions of the two rotating threaded rods 36 are opposite, so that the rotation of the two rotating threaded rods 36 simultaneously drives the adjustment block 31 to rise or fall.

[0064] The top of the limit plate 32 and the position corresponding to the adjusting block 31 are fixed with an anti-slip column 37, the cross section of the anti-slip column 37 is T-shaped, and the outer side of the anti-slip column 37 is rotatably connected to the adjusting block 31, so that the limit plate 32 is rotatably connected to the bottom of the adjusting block 31 through the anti-slip column 37, and the limit plate 32 will not separate from the bottom of the adjusting block 31. A travel groove 41 is provided at one end of the bottom of the adjusting block 31 and located on the outer side of the anti-slip column 37. A travel column 38 is fixed at the top of the limit plate 32 and at a position corresponding to the travel groove 41. The travel column 38 is slidably connected to the travel groove 41, so that when the limit plate 32 rotates at the bottom of the adjusting block 31, the travel limit is performed by sliding the travel column 38 inside the travel groove 41;

[0065] The interior of the travel groove 41 and at both ends of the travel column 38 are fixed with a return spring 40, so that when the travel column 38 slides inside the travel groove 41, it drives the return spring 40 to compress or stretch, and then after the external force driving the limit plate 32 disappears, the limit plate 32 can be rotated at the bottom of the adjustment block 31 and reset by the rebound of the return spring 40, so that it is located at the bottom end of the transverse guide rail 1, and a stop groove 42 is provided at the other end of the bottom of the adjustment block 31. A stop bolt 39 is threadedly connected to the interior of the limit plate 32 and at a position corresponding to the stop groove 42, and the tail end of the stop bolt 39 is slidably connected to the stop groove 42, so that the stop bolt 39 is assembled from the bottom of the limit plate 32 through a threaded connection, so that the top of the stop bolt 39 is connected to the inner side of the stop groove 42. At this time, the limit plate 32 cannot rotate at the bottom of the adjustment block 31, completing the limit.

[0066] In this embodiment, a battery may be fixed inside the fixed shell 30 to provide power to the adjustment drive motor 33 .

[0067] By cooperating with the fixed shell 30, the adjusting block 31 and the limiting plate 32, when the longitudinal guide rail 3 slides on the top of the transverse guide rail 1, it can be prevented from detaching by the limitation of the limiting mechanism 29, and the rotation of the limiting plate 32 at the bottom of the adjusting block 31 can be limited by the stop bolt 39. At the same time, when there is no restriction of the stop bolt 39, the position of the limiting plate 32 can be avoided, or the longitudinal guide rail 3 can be detached from the transverse guide rail 1 by rotating the limiting plate 32 at the bottom of the adjusting block 31.

[0068] The self-expandable foldable guide rail system adapted to various terrains provided by the present invention is used as follows: during use, the fixed shell 30 is fixed to the limiting side plate 13. When the longitudinal guide rail 3 is installed on the top of the transverse guide rail 1, the driving motor 33 is energized to drive the first gear 34 to rotate. The rotation of the first gear 34 drives the two second gears 35 to rotate, and the second gears 35 drive the rotating threaded rod 36 to rotate. The rotation of the rotating threaded rod 36 drives the threaded adjustment block 31 to rise inside the fixed shell 30. The rising of the adjustment block 31 drives the limiting plate 32 to rise synchronously, so that the adjustment block 31 contacts the bottom end of the transverse guide rail 1, thereby preventing the longitudinal guide rail 3 from detaching when the transverse guide rail 1 moves.

[0069] When the longitudinal guide rail 3 needs to be separated from the transverse guide rail 1, the stop bolt 39 is rotated to allow the rotation of the stop bolt 39 to drop and separate from the bottom of the limit plate 32, thereby allowing the stop bolt 39 to separate from the stop groove 42, and then the limit plate 32 is pushed by external force, so that the limit plate 32 is rotated at the bottom of the adjustment block 31 through the anti-separation column 37, and the travel column 38 is allowed to slide inside the travel groove 41, and at the same time, the travel column 38 drives the reset spring 40 to accumulate force, thereby separating the longitudinal guide rail 3 from the transverse guide rail 1.

[0070] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A self-expanding foldable guide rail system that can adapt to various terrains, characterized in that: The invention comprises three transverse guide rails (1) and three longitudinal guide rails (3), wherein the longitudinal guide rails (3) are located at the top end of the transverse guide rails (1), the bottom end of the longitudinal guide rails (3) is rotatably connected to a sliding roller (14), the tops of the three longitudinal guide rails (3) are all equipped with sliding supports (6) adapted to a folding assembly frame, the three longitudinal guide rails (3) are all equipped with a driving mechanism for driving the sliding supports (6) to move, and the bottom of each transverse guide rail (1) is equipped with multiple height adjustment components (2).

2. The self-expandable foldable guide rail system adapted to various terrains according to claim 1, characterized in that: Each height adjustment assembly (2) comprises a mechanical shaft (10), a rotating tray (11) and a connecting base (12); the top of the mechanical shaft (10) is fixed to the transverse guide rail (1); the output end of the transverse guide rail (1) is fixed with the rotating tray (11); and the bottom of the rotating tray (11) is fixed with the connecting base (12).

3. The self-expandable foldable guide rail system adapted to various terrains according to claim 1, characterized in that: Each of the longitudinal guide rails (3) is composed of a longitudinal middle guide rail (4) and two longitudinal side guide rails (5), and both ends of the longitudinal middle guide rail (4) are connected to the longitudinal side guide rails (5) through the cooperation of the mounting page (19) and the guide rail connecting ear plate (22).

4. The self-expandable foldable guide rail system adapted to various terrains according to claim 1, characterized in that: The driving mechanism comprises a longitudinal transmission shaft (20) and a transverse transmission shaft (21); the longitudinal transmission shaft (20) is rotatably connected to the interior of the longitudinal intermediate guide rail (4) along the longitudinal direction, and the outer side of the longitudinal transmission shaft (20) is threadedly connected to the sliding support (6); the transverse transmission shaft (21) is rotatably connected to the interior of the longitudinal intermediate guide rail (4) near one end of the longitudinal side guide rail (5), and the transverse transmission shaft (21) is meshed with the longitudinal transmission shaft (20) via bevel gears.

5. The self-expandable foldable guide rail system adaptable to various terrains according to claim 1, characterized in that: Both ends of the sliding support (6) are rotatably connected to hydraulic support rods (7).

6. The self-expandable foldable guide rail system adapted to various terrains according to claim 5, characterized in that: The sliding support (6) comprises a sliding block (23), a sliding wheel (24), a cross support block (26), a hinge support ear plate (27) and a support plate (28); the outer side of the sliding block (23) is slidably connected to the longitudinal guide rail (3); both sides of the sliding block (23) are evenly rotatably connected to the sliding wheel (24); a cross support block (26) is fixed on the top of the sliding block (23); both ends of the cross support block (26) are fixed with a hinge support ear plate (27); and the hinge support ear plate (27) is rotatably connected to the bottom end of the hydraulic support rod (7); and a support plate (28) is fixed on the top of the cross support block (26).

7. The self-expandable foldable guide rail system adapted to various terrains according to claim 6, characterized in that: A transmission hole (25) is provided at the center of the sliding block (23), and the transmission hole (25) is threadedly connected to the outer side of the longitudinal transmission shaft (20).

8. The self-expandable foldable guide rail system adaptable to various terrains according to claim 1, characterized in that: A limiting mechanism (29) for positioning is installed at the bottom of the longitudinal guide rail (3) and at both ends of the transverse guide rail (1). The limiting mechanism (29) comprises a fixed shell (30), an adjustment block (31) and a limiting plate (32). The fixed shell (30) is fixed to the longitudinal guide rail (3). The bottom end of the fixed shell (30) is internally slidably connected to the adjustment block (31). The bottom of the adjustment block (31) is provided with a limiting plate (32).

9. The self-expandable foldable guide rail system adapted to various terrains according to claim 8, characterized in that: An adjustment drive motor (33) is fixed to the top of the interior of the fixed shell (30), an output end of the adjustment drive motor (33) is connected to a first gear (34), both ends of the first gear (34) are meshedly connected to a second gear (35), a rotating threaded rod (36) is fixed to the bottom of the second gear (35), and the rotating threaded rod (36) is rotationally connected to the fixed shell (30), and the outer side of the rotating threaded rod (36) is threadedly connected to the adjustment block (31).

10. The self-expandable foldable guide rail system adaptable to various terrains according to claim 8, characterized in that: An anti-slip column (37) is fixed on the top of the limit plate (32) and at a position corresponding to the adjustment block (31); the outer side of the anti-slip column (37) is rotatably connected to the adjustment block (31); a travel groove (41) is provided at one end of the bottom of the adjustment block (31) and located on the outer side of the anti-slip column (37); a travel column (38) is fixed on the top of the limit plate (32) and at a position corresponding to the travel groove (41); the travel column (38) is slidably connected to the travel groove (41); a return spring (40) is fixed inside the travel groove (41) and at both ends of the travel column (38); a stop groove (42) is provided at the other end of the bottom of the adjustment block (31); a stop bolt (39) is threadedly connected inside the limit plate (32) and at a position corresponding to the stop groove (42), and the tail end of the stop bolt (39) is slidably connected to the stop groove (42).

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