Drawing expansion house

Abstract

The utility model discloses a drawing expansion house which comprises a first frame, a second frame, a third frame and a bottom folding frame, the third frame is nested on the outer side of the second frame, and the second frame is nested on the outer side of the first frame; the toilet module and / or the kitchen module are / is integrally arranged in the third frame; first side sliding ways are arranged at the two ends of the first bottom plate, second side sliding ways are arranged at the two ends of the second bottom plate, frame sliding ways are arranged on the inner sides of bottom connecting rods of side frames in the first frame, and sliding mechanisms are arranged at the bottoms of the first frame and the second frame. The first frame and the second frame are synchronously pulled out to expand the internal space. According to the house, the internal space is enlarged through drawing, no high-low staggered slab exists on the indoor ground after drawing, the living comfort is improved, and the house can be conveniently and rapidly contracted and transported after drawing; meanwhile, an external envelope structure is arranged in advance to reduce the project amount of field installation.

Description

Technical Field

[0001] This utility model relates to the field of expandable housing technology, and in particular to a pull-out expandable housing. Background Technology

[0002] In existing technologies, multiple individual modules of steel-framed houses are typically connected by welding to assemble a larger, single-unit house. However, this welding method results in a fixed interior space and poor expandability, leading to inconvenience for users. Furthermore, the assembled house occupies a large area, making transportation difficult and requiring complete disassembly, which is extremely labor-intensive. Additionally, the height and dimensions of this structure exceed container shipping requirements, resulting in high shipping costs. Therefore, existing technologies for splicing steel-framed houses suffer from low assembly / disassembly efficiency and high transportation costs. Utility Model Content

[0003] The present invention provides a pull-out expandable house, which aims to solve the problems of low disassembly and assembly efficiency and high transportation costs of steel structure houses obtained by splicing in the prior art.

[0004] This utility model discloses a pull-out expandable house, wherein the pull-out expandable house includes a first frame, a second frame, a third frame and a bottom folding frame, the third frame is nested outside the second frame, and the second frame is nested outside the first frame;

[0005] The first frame, the second frame, and the third frame are all composed of two oppositely arranged side frames, which are connected by multiple long strip-shaped connecting rods.

[0006] The bottom folding frame includes a first base plate and a second base plate. One side of the first base plate is rotatably connected to the elongated connecting rod at the bottom of the third frame, and the other side of the first base plate is rotatably connected to the side of the second base plate.

[0007] The first base plate has first side slides at both ends, the second base plate has second side slides at both ends, and the inner side of the bottom connecting rod of the side frame in the first frame has a frame slide; when the first base plate and the second base plate are both flipped to the horizontal, the first side slide is flush with the second side slide and the frame slide; the first base plate and the second base plate are each provided with a plurality of frame connecting rods parallel to the first side slide;

[0008] Both the bottom of the first frame and the second frame are provided with sliding mechanisms;

[0009] The bottom surfaces of the first frame, the second frame, and the third frame are each provided with multiple intermediate connecting rods that connect the long strip connecting rods; the top and side surfaces of the first frame, the second frame, and the third frame are each provided with an outer protective structure.

[0010] When the first side slide is flush with the second side slide and the frame slide at the same time, the first frame is pulled outward from one side of the second frame, the second frame is pulled outward from one side of the third frame, and the sliding mechanism at the bottom of the second frame partially or completely slides into the first side slide and the sliding mechanism at the bottom of the first frame partially or completely slides into the second side slide, thereby expanding the internal space.

[0011] In the aforementioned pull-out extension house, the third frame is equipped with a built-in electric winch, and the end of the first cable of the built-in electric winch is fixedly connected to the first base plate; an external electric winch is fixedly installed on the outside of the bottom folding frame, and the end of the second cable of the external electric winch is fixedly connected to the second base plate.

[0012] In the aforementioned pull-out extension house, the end of the first cable is fixedly connected to the side of the first base plate near the second base plate, and the end of the second cable is fixedly connected to the side of the second base plate not connected to the first base plate.

[0013] The pull-out extension house, wherein the first side slide is provided with a first guide rail and a second guide rail that are parallel to each other, the second side slide is provided with a third guide rail, and the frame slide is provided with a fourth guide rail and a fifth guide rail that are parallel to each other.

[0014] When both the first base plate and the second base plate are flipped to a horizontal position, the first guide rail, the fourth guide rail, and the third guide rail intersect to form an inner guide rail, and the second guide rail, the fifth guide rail, intersect to form an outer guide rail; the sliding mechanism at the bottom of the first frame slides along the inner guide rail, and the sliding mechanism at the bottom of the second frame slides along the outer guide rail.

[0015] In the aforementioned pull-out expandable house, both the inner and outer guide rails are convex tracks; the outer periphery of the sliding mechanism is recessed inward to form an annular groove; when the sliding mechanism slides on the convex track, the convex track contacts the concave surface of the annular groove.

[0016] In the aforementioned pull-out expandable house, a plurality of lower hinges are provided between the side connecting rod near the third frame and the long strip connecting rod at the bottom of the third frame in the first base plate, and the first base plate flips around the side axis of the lower hinges.

[0017] Multiple upper hinges are provided between the side connecting rod on the side away from the third frame in the first base plate and the side connecting rod on the side of the second base plate, and the second base plate flips around the side axis of the upper hinges.

[0018] In the aforementioned pull-out expandable house, an electro-hydraulic rod is provided at one end of the frame slide away from the bottom folding frame, and the drive shaft of the electro-hydraulic rod is fixedly connected to the bottom surface of the first frame.

[0019] In the aforementioned pull-out expandable house, a connecting piece is provided on the vertical connecting rod on the side frame of the third frame near the bottom folding frame; when the bottom folding frame is flipped upward and overlaps with the side of the third frame, the connecting piece fixes the bottom folding frame and the third frame together.

[0020] The pull-out house, wherein a piezoresistive pressure sensor is provided in the second side slide, and a sensor locking device is provided on the side walls of the first side slide and the second side slide.

[0021] The piezoresistive pressure sensor is connected to the inductive locking device so that the piezoresistive pressure sensor outputs a pressure sensing signal to drive the inductive locking device to lock and limit the sliding mechanism.

[0022] The pull-out house, wherein the top of the side of the third frame facing the second frame is provided with an electric canopy, and a rain sensor is provided above the electric canopy;

[0023] The electric canopy is connected to the rain sensor so that the rain sensor outputs a rain sensing signal to drive the electric canopy to unfold to one side of the second frame.

[0024] This utility model discloses a pull-out expandable house, comprising a first frame, a second frame, a third frame, and a bottom folding frame. The third frame is nested outside the second frame, and the second frame is nested outside the first frame. A bathroom module and / or a kitchen module are integrated within the third frame. The first base plate has first side rails at both ends, and the second base plate has second side rails at both ends. A frame rail is located on the inner side of the bottom connecting rod of the side frame of the first frame. Both the first and second frames have sliding mechanisms at their bottoms. When the first side rails are simultaneously flush with the second side rails and the frame rails, the first and second frames are simultaneously pulled outwards, thereby expanding the internal space. This house increases the internal space by pulling out the first and second frames. After pulling out, the interior floor is level, improving living comfort. It can also be easily and quickly retracted and transported. Furthermore, a pre-installed external enclosure structure reduces on-site installation work. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 The overall structural diagram of the pull-out extension house provided in this embodiment of the utility model;

[0027] Figure 2 Another overall structural diagram of the pull-out extension house provided in this embodiment of the utility model;

[0028] Figure 3 A first-state structural diagram of the pull-out extendable house provided in this embodiment of the utility model;

[0029] Figure 4 A second-state structural diagram of the pull-out extension house provided in this embodiment of the utility model;

[0030] Figure 5 A side view of the pull-out extendable house provided in an embodiment of this utility model;

[0031] Figure 6 This is a structural diagram of another side of the pull-out extension house provided in an embodiment of the present utility model;

[0032] Figure 7 A partial structural diagram of a pull-out extendable house provided in an embodiment of this utility model;

[0033] Figure 8 Another partial structural diagram of the pull-out extension house provided in this embodiment of the utility model;

[0034] Figure 9 A partial side view of the pull-out extendable house provided in an embodiment of this utility model;

[0035] Figure 10 Another partial structural diagram of the pull-out extendable house provided in this embodiment of the utility model;

[0036] Figure 11 Another side view of the pull-out extension house provided in this embodiment of the utility model;

[0037] Figure 12 Another side view of the pull-out extension house provided in this embodiment of the utility model;

[0038] Figure 13 Another side view of the pull-out extension house provided in this embodiment of the utility model

[0039] Figure 14 A top view of the external frame of a pull-out extendable house provided in an embodiment of this utility model;

[0040] Figure 15 Another top view of the external frame of the pull-out extension house provided in this embodiment of the utility model;

[0041] Figure 16 Another top view of the external frame of the pull-out extension house provided in this embodiment of the utility model;

[0042] Figure 17 A combined structural diagram of a pull-out extendable house provided for an embodiment of this utility model;

[0043] Figure 18 A top view of the external frame of a pull-out extendable house provided in an embodiment of this utility model;

[0044] Figure 19 Another top view of the external frame of the pull-out extension house provided in this embodiment of the utility model;

[0045] Figure 20 Another top view of the external frame of the pull-out extension house provided in this embodiment of the utility model.

[0046] Reference numerals: 1. First frame; 2. Second frame; 3. Third frame; 4. Bottom folding frame; 11. Side frame; 12. Long strip connecting rod; 41. First base plate; 42. Second base plate; 411. First side slide rail; 421. Second side slide rail; 13. Frame slide rail; 21. Sliding mechanism; 22. Middle connecting rod; 23. Top plate; 31. Built-in electric winch; 32. External electric winch; 14. Inner guide rail; 15. Outer guide rail; 33. Lower hinge; 34. Upper hinge; 5. Electro-hydraulic rod; 51. Piezoresistive pressure sensor; 52. Sensor locking device; 6. Electric canopy; 61. Rain sensor; 7. Connecting piece; 35. Fixing through hole; 412. Side plate; 401. Frame connecting rod; 402. Side connecting rod. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0048] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and, or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and, or collections thereof.

[0049] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0050] It should also be further understood that the terms "and" and "or" as used in this specification and the appended claims refer to any combination of one or more of the associated listed items and all possible combinations, and include such combinations.

[0051] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

[0052] This utility model discloses a pull-out expandable house, such as Figures 1 to 3As shown, the house includes a first frame 1, a second frame 2, a third frame 3, and a bottom folding frame 4. The third frame 3 is nested outside the second frame 2, and the second frame 2 is nested outside the first frame 1. The first frame 1, the second frame 2, and the third frame 3 are all composed of two opposing side frames 11, which are connected by multiple elongated connecting rods 12. The bottom folding frame 4 includes a first base plate 41 and a second base plate 42. One side of the first base plate 41 is rotatably connected to the elongated connecting rod 12 at the bottom of the third frame 3, and the other side of the first base plate 41 is rotatably connected to the side of the second base plate 42. The first base plate 41 has a first side slide rail 411 at both ends, and the second base plate 42 has a second side slide rail 421 at both ends. The inner side of the bottom connecting rod of the side frame 11 in the first frame 1 has a frame slide rail 13. When the first base plate 41 and the second base plate 42 are both flipped to the horizontal position, the first side slide rail 411 simultaneously connects with the... The second side slide 421 and the frame slide 13 are flush; the first base plate 41 and the second base plate 42 are each provided with a plurality of frame connecting rods 401 parallel to the first side slide 411; the bottom of the first frame 1 and the second frame 2 are each provided with a sliding mechanism 21; the bottom surfaces of the first frame 1, the second frame 2 and the third frame 3 are each provided with a plurality of intermediate connecting rods 22 that connect the long strip connecting rods 12; the top and sides of the first frame 1, the second frame 2 and the third frame 3 are each provided with an outer protective structure; when the first side slide 411 is flush with the second side slide 421 and the frame slide 13 at the same time, the first frame 1 is pulled out from one side of the second frame 2 and the second frame 2 is pulled out from one side of the third frame 3, and the sliding mechanism 21 at the bottom of the second frame 2 is partially or completely slid into the first side slide 411 and the sliding mechanism 21 at the bottom of the first frame 1 is partially or completely slid into the second side slide 421, thereby realizing the expansion of the internal space.

[0053] like Figure 1 and Figure 2 As shown, the third frame 3 is nested outside the second frame 2, and the second frame 2 is nested outside the first frame 1, thus forming a three-layer nested structure; therefore, the external dimensions of the third frame 3 are larger than those of the second frame 2, and the external dimensions of the second frame 2 are larger than those of the first frame 1. The first frame 11 includes two oppositely arranged side frames 11, which are connected by multiple elongated connecting rods 12, such as... Figure 1 and Figure 2As shown, in this embodiment, four elongated connecting rods 12 are provided to connect two oppositely arranged side frames 11. The long side of the elongated connecting rod 12 is perpendicular to the plane containing the side frame 11. In a specific embodiment of this application, the side frame 11 is set as a rectangle, but it can also be set as a trapezoid (typically a right trapezoid, with the hypotenuse of the right trapezoid serving as the top edge of the side frame 11), or other shapes. Similarly, the second frame 2 and the third frame 3 can both include two oppositely arranged side frames 11 and multiple elongated connecting rods 12. Figure 1 and Figure 2 These are structural diagrams after the first frame 1 and the second frame 2 have been extracted. Figure 3 This is a structural diagram of the first frame 1 and the second frame 2 being recessed into the third frame 3.

[0054] The bottom folding frame 4 can be configured to consist of a first base plate 41 and a second base plate 42. One side of the first base plate 41 is rotatably connected to the side of the second base plate 42, and the other side of the first base plate 41 is rotatably connected to the elongated connecting rod 12 at the bottom of the third frame 3. The first base plate 41 can then be flipped around one side of the elongated connecting rod 12, which is rotatably connected to the first base plate 41, and the second base plate 42 can be flipped around the side of the first base plate 41 furthest from the third frame 3. When the bottom folding frame 4 is unfolded, the second base plate 42 flips upwards and the first base plate 41 flips downwards. The specific structure is as follows: Figure 3 As shown. Then, both the first base plate 41 and the second base plate 42 in the bottom folding frame 4 can be flipped to a vertical state. At this time, the side of the first base plate 41 overlaps with the side of the second base plate 42, and the structure of the bottom folding frame 4 is as follows. Figure 4 As shown, the house occupies a small area after retraction, making it easy to move and transport, thus improving the convenience of house installation and deployment. By flipping and folding the bottom folding frame 4, the space occupied by the house in the retracted state is reduced; when space expansion is required, the first base plate 41 and the second base plate 42 are flipped from the vertical state to the horizontal state, at which point the first base plate 41 and the second base plate 42 are flush with the bottom surface of the third frame 3, thus achieving a design without unevenness in the indoor floor.

[0055] The first base plate 41 has first side slide rails 411 at both ends, the second base plate 42 has second side slide rails 421 at both ends, and the bottom of the first frame 1 has a corresponding frame slide rail 13. When the first base plate 41 and the second base plate 42 are flipped to be horizontal, the two ends of the first side slide rails 411 are flush with the second side slide rails 421 and the frame slide rail 13, respectively. At this time, the sliding mechanism 21 at the bottom of the first frame 1 and the second frame 2 can slide into the first side slide rails 411 and the second side slide rails 421. This combination of slide rails can support the first frame 1 and the second frame 2, so that the first frame 1 and the second frame 2 are subjected to uniform force, that is, it can ensure that the first frame 1 and the second frame 2 are subjected to balanced and stable force, and the structure of the house is strong after expansion. In practical applications, the third frame 3 can be fixed, and then the first frame 1 and the second frame 2 can be pulled outwards. The sliding mechanism 21 at the bottom of the second frame 2 will then partially or completely slide into the first side slide rail 411, and the sliding mechanism 21 at the bottom of the first frame 1 will partially or completely slide into the second side slide rail 421, thereby expanding the internal space. The resulting house structure is as follows: Figure 1 and Figure 2 As shown; the side view of the expanded house structure is as follows. Figure 5 As shown. The sliding mechanism 21 can be as follows: Figure 10 The roller shown can also be a linear guide rail, a ball bearing guide, etc.

[0056] In this application, by pulling out the first frame 1 and the second frame 2, approximately three times the space of the initial frame can be obtained, thus expanding the house area; and the expansion can be achieved simply by pulling out the first frame 1 and the second frame 2. The top and sides of the first frame 1, the second frame 2, and the third frame 3 are all equipped with an external enclosure structure. For example, the top surfaces of the first frame 1, the second frame 2, and the third frame 3 are all equipped with a top plate 23, and the side of the first frame 1 away from the third frame 3 is equipped with railings. In addition to the top plate 23 and railings, the external enclosure structure also includes exterior walls, doors and windows, walls, floors and ceilings, custom cabinets, water and electricity systems, etc. By pre-assembling the external enclosure structure within the frame structure, the amount of on-site installation work can be significantly reduced, thereby greatly reducing on-site installation labor costs and shortening installation time.

[0057] By integrating the bathroom and / or kitchen modules within the third frame 3, the most complex areas for water supply, drainage, and electrical systems can achieve full integration of bathroom fixtures and custom cabinets without on-site construction. The interior partitions are basically integrated within the first frame 1, avoiding collision issues during the contraction phase of the second and third frames 2 and 3, and greatly reducing the amount of on-site interior wall work. 95% of the interior decoration is already completed, and water and electricity are fully completed. The exterior aluminum alloy doors and windows are fully integrated, and 95% of the exterior wall and roof finishing and waterproofing are completed, which can greatly reduce the amount of on-site manual installation work and lower labor costs.

[0058] Through different structural designs, a variety of apartment layouts can be achieved (the interior layout can be varied), such as the following: Figures 14 to 17 As shown; Figures 14 to 17 This is merely a specific example of the interior layout of a house. In addition to the interior layout shown in the attached diagram, other interior layouts can be derived by extension, as long as they meet the requirements of a three-layer nested structure and external protective structures on the top and sides of the frame. The placement of ancillary components such as terraces and stairs on the outside of the house can be adjusted arbitrarily.

[0059] like Figure 6 As shown, in a more specific embodiment, the third frame 3 is provided with a built-in electric winch 31, and the end of the first cable of the built-in electric winch 31 is fixedly connected to the first base plate 41; an external electric winch 32 is fixedly provided on the outside of the bottom folding frame 4, and the end of the second cable of the external electric winch 32 is fixedly connected to the second base plate 42. Specifically, the end of the first cable is fixedly connected to the side of the first base plate 41 near the second base plate 42, and the end of the second cable is fixedly connected to the side of the second base plate 42 that is not connected to the first base plate 41.

[0060] By setting up a built-in electric winch 31 to lift the first base plate 41 and setting up an external electric winch 32 to pull the second base plate 42, the first base plate 41 and the second base plate 42 can be rotated, making the rotation process more labor-saving and safer.

[0061] like Figure 10 As shown, in a more specific embodiment, the first side slide 411 is provided with a first guide rail and a second guide rail that are parallel to each other, and the second side slide 421 is provided with a third guide rail; the frame slide 13 is provided with a fourth guide rail and a fifth guide rail that are parallel to each other; when the first base plate 41 and the second base plate 42 are both flipped to the horizontal position, the first guide rail, the fourth guide rail and the third guide rail are connected to form an inner guide rail 14, and the second guide rail and the fifth guide rail are connected to form an outer guide rail 15; the sliding mechanism 21 at the bottom of the first frame 1 slides along the inner guide rail 14, and the sliding mechanism 21 at the bottom of the second frame 2 slides along the outer guide rail 15. The inner guide rail 14 and the outer guide rail 15 are both convex tracks; the outer periphery of the sliding mechanism 21 is recessed inward to form an annular groove; when the sliding mechanism 21 slides on the convex track, the convex track contacts the concave surface of the annular groove.

[0062] The first side slide rail 411, the second side slide rail 421, and the frame slide rail 13 can all be groove-shaped structures. This facilitates the sliding mechanism 21 and prevents it from contacting the inner wall of the slide rail during sliding, which would cause excessive sliding resistance and obstruction of the sliding mechanism 21. A first guide rail, a second guide rail, a third guide rail, a fourth guide rail, and a fifth guide rail can also be provided. The first guide rail, the third guide rail, and the fourth guide rail are connected to form an inner guide rail 14, and the second guide rail and the fifth guide rail are connected to form an outer guide rail 15. The length of the inner guide rail 14 is longer than that of the outer guide rail 15. The opening at the end of the outer rail of the first side slide rail 411 can be closed by the side plate 412. The specific structure is as follows: Figure 10 As shown.

[0063] Specifically, the inner guide rail 14 and the outer guide rail 15 can both be convex tracks. Simultaneously, the outer periphery of the sliding mechanism 21 is recessed inward to form an annular groove, thus the convex track matches the annular groove. The sliding mechanism 21 can slide under the limiting action of the convex track, ensuring that the sliding mechanism 21 does not deviate during sliding. This avoids the sliding mechanism 21 contacting the inner wall of the slide rail, which would cause excessive sliding resistance, and improves the smoothness of the sliding mechanism 21's movement.

[0064] Since the outer dimensions of the first frame 1 are smaller than those of the second frame 2, the sliding mechanism 21 at the bottom of the first frame 1 slides along the inner guide rail 14, and the sliding mechanism 21 at the bottom of the second frame 2 slides along the outer guide rail 15. Alternatively, both the inner and outer rails can be designed to be concave, in which case the outer periphery of the sliding mechanism 21 protrudes outward, and the annular protrusion on the outer periphery of the sliding mechanism 21 is embedded in the concave rail for sliding, which also ensures that the sliding mechanism 21 will not deviate when sliding.

[0065] like Figure 7 and Figure 8 As shown, in a more specific embodiment, a plurality of lower hinges 33 are provided between the side connecting rod 402 near the third frame 3 and the elongated connecting rod 12 at the bottom of the third frame 3 in the first base plate 41, and the first base plate 41 flips around the side axis of the lower hinges 33; a plurality of upper hinges 34 are provided between the side connecting rod 402 away from the third frame 3 in the first base plate 41 and the side connecting rod 402 on the side of the second base plate 42, and the second base plate 42 flips around the side axis of the upper hinges 34.

[0066] Multiple lower hinges 33 may be provided between the side connecting rod 402 of the first base plate 41 and the long strip connecting rod 12 at the bottom of the third frame 3. The structure of the lower hinges 33 is as follows: Figure 7As shown; one leaf of the lower hinge 33 is fixedly connected to the side connecting rod 402 of the first base plate 41, and the other leaf is fixedly connected to the long strip connecting rod 12 at the bottom of the third frame 3. Under the limiting action of the lower hinge 33, the first base plate 41 flips around the side axis of the lower hinge 33. Multiple upper hinges 34 are provided between the side connecting rod 402 of the first base plate 41 and the side connecting rod 402 of the second base plate 42. The structure of the upper hinges 34 is as follows. Figure 8 As shown; based on a similar structure, under the limiting action of the upper hinge 34, the second base plate 42 rotates around the side axis of the upper hinge 34. In addition to using hinges, other rotating components can be used to rotatably connect the first base plate 41 to the third frame 3 and the second base plate 42 to the first base plate 41, such as gears or bearings.

[0067] like Figure 9 and Figure 10 As shown, in a more specific embodiment, an electro-hydraulic rod 5 is provided at one end of the frame slide 13 away from the bottom folding frame 4, and the drive shaft of the electro-hydraulic rod 5 is fixedly connected to the bottom surface of the first frame 1.

[0068] By setting up an electric hydraulic rod 5, the first frame 1 and the second frame 2 can be quickly pushed outward, thereby improving the convenience and efficiency of pulling out the first frame 1 and the second frame 2.

[0069] like Figure 13 As shown, in a more specific embodiment, a connecting piece 7 is also provided on the vertical connecting rod of the side frame 11 of the third frame 3 near the bottom folding frame 4; when the bottom folding frame 4 is flipped upward and overlaps with the side of the third frame 3, the connecting piece 7 fixes the bottom folding frame 4 to the third frame 3. When the bottom folding frame 4 is flipped upward and is in a vertical state, the bottom folding frame 4 overlaps with the side of the third frame 3. At this time, the bottom folding frame 4 can be fixedly connected to the second base plate 42 through the connecting piece 7. In this case, the bottom folding frame 4 is fixedly connected to the side column of the third frame 3 through the connecting piece 7, and the bottom folding frame 4 cannot be flipped downward, so as to facilitate the shrinking and transportation of the house. In the specific embodiment of this application, a sheet-like connecting piece 7 is used to fix the second base plate 42 and the third frame 3. A Z-shaped connecting piece 7 can also be used to fix the first base plate 41 and the third frame 3, with similar effects.

[0070] like Figure 11As shown, in a more specific embodiment, a piezoresistive pressure sensor 51 is provided inside the second side slide rail 421, and a sensing locking device 52 is provided on the side walls of the first side slide rail 411 and the second side slide rail 421; the piezoresistive pressure sensor 51 and the sensing locking device 52 are communicatively connected, so that the piezoresistive pressure sensor 51 outputs a pressure sensing signal to drive the sensing locking device 52 to lock and limit the sliding mechanism 21. Wherein, as... Figure 12 As shown, the third frame 3 is provided with an electric canopy 6 on the top of the side facing the second frame 2, and a rain sensor 61 is provided above the electric canopy 6; the electric canopy 6 and the rain sensor 61 are connected in communication so that the rain sensor 61 outputs a rain sensing signal to drive the electric canopy 6 to unfold to one side of the second frame 2.

[0071] To enhance safety after the house is extended, a piezoresistive pressure sensor 51 and a locking device 52 can be installed. The piezoresistive pressure sensor 51 can be installed at the end of the second side slide rail 421 away from the third frame 3. When the sliding mechanism 21 slides into the space above the piezoresistive pressure sensor 51, the piezoresistive pressure sensor 51 outputs a corresponding pressure sensing signal to the locking device 52. The locking device 52 extends into the first side slide rail 411 or the second side slide rail 421 to prevent the sliding mechanism 21 from sliding further, thus locking and limiting the sliding mechanism 21. This prevents the first frame 1 and the second frame 2 from sliding easily and improves the safety of use. Correspondingly, when the sliding mechanism 21 slides out from above the piezoresistive pressure sensor 51, the piezoresistive pressure sensor 51 outputs the corresponding pressure sensing signal to the sensing locking device 52. The sensing locking device 52 retracts towards the side wall to remove the obstruction to the sliding mechanism 21. At this time, the sliding mechanism 21 can slide arbitrarily, that is, the first frame 1 and the second frame 2 can be retracted at this time.

[0072] A rain sensor 61 and an electric canopy 6 can be installed. The rain sensor 61 is fixedly installed on the second frame 2 and positioned above the electric canopy 6. When the rain sensor 61 detects rainwater, it outputs a corresponding rainwater sensing signal to the electric canopy 6, which then unfolds towards the second frame 2. At this time, the electric canopy 6 can block the rainwater from above, thus preventing rainwater from seeping in when the sealing strips at the junction of the roof beams of the first frame 1 and the second frame 2, and at the junction of the roof beams of the second frame 2 and the third frame 3, fail. This avoids the problem of water seepage during heavy rain and improves the waterproofing effect of the house.

[0073] like Figure 4As shown, a fixing through hole 35 can be provided at the top corner of the third frame 3. All fixing through holes 35 are set outwards. Thus, each top corner of the third frame 3 is provided with three fixing through holes 35, and the three fixing through holes 35 at each top corner are set in different directions. The fixing through hole 35 is used to match the fixing column set on the container transfer plate. The fixing column can be inserted into the fixing through hole 35 to limit and fix the pull-out house, so as to facilitate the direct transportation of the pull-out house as a container component and improve the transportation efficiency of the house.

[0074] When both the first side slide rail 411 and the second side slide rail 421 are located on the outside of the bottom connecting rods of the two side frames 11 in the third frame 3, the first side slide rail 411 and the second side slide rail 421 are respectively located on the outside of both ends of the bottom folding frame 4. The sliding mechanism 21 is respectively located on the lower side of the bottom connecting rods of the side frames 11 at both ends of the second frame 2 and on the lower side of the bottom connecting rods of the side frames 11 at both ends of the first frame 1. At this time, it corresponds to a "two-sided pull-out" configuration, and its top view is as follows. Figure 18 As shown. When both the first side slide rail 411 and the second side slide rail 421 are located inside the bottom connecting rods of the two side frames 11 in the third frame 3, the first side slide rail 411 and the second side slide rail 421 are correspondingly located inside the two ends of the bottom folding frame 4. The second frame 2 has two upright plates located at both ends of the third frame 3, and the first frame 1 has two upright plates located at both ends of the second frame 2. This corresponds to a "middle pull-out" configuration, and its top view is as follows. Figure 19 As shown. When a set of first side slide rails 411 and second side slide rails 421 are located on the outside of the bottom connecting rod of the side frame 11 in the third frame 3, and another set of first side slide rails 411 and second side slide rails 421 are located on the inside of the bottom connecting rod of the other side frame 11, it corresponds to a "single-sided pull-out" configuration, and its top view is as follows. Figure 20 As shown.

[0075] This utility model discloses a pull-out expandable house, comprising a first frame, a second frame, a third frame, and a bottom folding frame. The third frame is nested outside the second frame, and the second frame is nested outside the first frame. A bathroom module and / or a kitchen module are integrated within the third frame. The first base plate has first side rails at both ends, and the second base plate has second side rails at both ends. A frame rail is located on the inner side of the bottom connecting rod of the side frame of the first frame. Both the first and second frames have sliding mechanisms at their bottoms. When the first side rails are simultaneously flush with the second side rails and the frame rails, the first and second frames are simultaneously pulled outwards, thereby expanding the internal space. This house increases the internal space by pulling out the first and second frames. After pulling out, the interior floor is level, improving living comfort. It can also be easily and quickly retracted and transported. Furthermore, a pre-installed external enclosure structure reduces on-site installation work.

[0076] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A pull-out expandable house, characterized in that, The house includes a first frame, a second frame, a third frame, and a bottom folding frame. The third frame is nested outside the second frame, and the second frame is nested outside the first frame. The bathroom module and / or kitchen module are integrated within the third frame. The first frame, the second frame, and the third frame are all composed of two oppositely arranged side frames, which are connected by multiple long strip-shaped connecting rods. The bottom folding frame includes a first base plate and a second base plate. One side of the first base plate is rotatably connected to the elongated connecting rod at the bottom of the third frame, and the other side of the first base plate is rotatably connected to the side of the second base plate. The first base plate has first side slides at both ends, the second base plate has second side slides at both ends, and the inner side of the bottom connecting rod of the side frame in the first frame has a frame slide; when the first base plate and the second base plate are both flipped to the horizontal, the first side slide is flush with the second side slide and the frame slide; the first base plate and the second base plate are each provided with a plurality of frame connecting rods parallel to the first side slide; Both the bottom of the first frame and the second frame are provided with sliding mechanisms; The bottom surfaces of the first frame, the second frame, and the third frame are each provided with multiple intermediate connecting rods that connect the long strip connecting rods; the top and side surfaces of the first frame, the second frame, and the third frame are each provided with an outer protective structure. When the first side slide is flush with the second side slide and the frame slide at the same time, the first frame is pulled outward from one side of the second frame, the second frame is pulled outward from one side of the third frame, and the sliding mechanism at the bottom of the second frame partially or completely slides into the first side slide and the sliding mechanism at the bottom of the first frame partially or completely slides into the second side slide, thereby expanding the internal space.

2. The pull-out extendable house according to claim 1, characterized in that, The third frame is equipped with a built-in electric winch, and the end of the first cable of the built-in electric winch is fixedly connected to the first base plate; an external electric winch is fixedly installed on the outside of the bottom folding frame, and the end of the second cable of the external electric winch is fixedly connected to the second base plate.

3. The pull-out extendable house according to claim 2, characterized in that, The end of the first cable is fixedly connected to the side of the first base plate near the second base plate, and the end of the second cable is fixedly connected to the side of the second base plate not connected to the first base plate.

4. The pull-out extendable house according to any one of claims 1-3, characterized in that, The first side slide is provided with a first guide rail and a second guide rail that are parallel to each other; the second side slide is provided with a third guide rail; the frame slide is provided with a fourth guide rail and a fifth guide rail that are parallel to each other. When both the first base plate and the second base plate are flipped to a horizontal position, the first guide rail, the fourth guide rail, and the third guide rail intersect to form an inner guide rail, and the second guide rail, the fifth guide rail, intersect to form an outer guide rail; the sliding mechanism at the bottom of the first frame slides along the inner guide rail, and the sliding mechanism at the bottom of the second frame slides along the outer guide rail.

5. The pull-out extendable house according to claim 4, characterized in that, Both the inner and outer guide rails are convex tracks; the outer periphery of the sliding mechanism is recessed inward to form an annular groove; when the sliding mechanism slides on the convex track, the convex track contacts the concave surface of the annular groove.

6. The pull-out extendable house according to claim 5, characterized in that, Multiple lower hinges are provided between the side connecting rod near the third frame and the long strip connecting rod at the bottom of the third frame in the first base plate, and the first base plate flips around the side axis of the lower hinges; Multiple upper hinges are provided between the side connecting rod on the side away from the third frame in the first base plate and the side connecting rod on the side of the second base plate, and the second base plate flips around the side axis of the upper hinges.

7. The pull-out extendable house according to any one of claims 1-3, characterized in that, An electro-hydraulic rod is provided at one end of the frame slide away from the bottom folding frame, and the drive shaft of the electro-hydraulic rod is fixedly connected to the bottom surface of the first frame.

8. The pull-out extendable house according to claim 7, characterized in that, A connecting piece is also provided on the vertical connecting rod on the side frame of the third frame near the bottom folding frame; when the bottom folding frame is flipped upward and overlaps with the side of the third frame, the connecting piece fixes the bottom folding frame and the third frame together.

9. The pull-out expandable house according to claim 4, characterized in that, The second side slide is equipped with a piezoresistive pressure sensor, and the side walls of the first side slide and the second side slide are equipped with inductive locking devices. The piezoresistive pressure sensor is connected to the inductive locking device so that the piezoresistive pressure sensor outputs a pressure sensing signal to drive the inductive locking device to lock and limit the sliding mechanism.

10. The pull-out expandable house according to claim 9, characterized in that, The third frame is provided with an electric canopy on the top of the side facing the second frame, and a rain sensor is provided above the electric canopy. The electric canopy is connected to the rain sensor so that the rain sensor outputs a rain sensing signal to drive the electric canopy to unfold to one side of the second frame.

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