Quickly-assembled house with automatic telescopic stairs

The automatic telescopic staircase system uses sliding components and drive devices to achieve automatic extension and retraction of the stairs, solving the problem of inconvenience in using existing telescopic stairs and improving the applicability and convenience of quick-install houses.

CN223398316UActive Publication Date: 2025-09-30CHANGZHOU ALUMINUM MOBILE CAPSULE CO LTD
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Patent Information

Application Number
CN202422801799.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-09-30
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

Existing telescopic stairs are inconvenient to use in quick-install houses, especially for people with limited mobility or short height, as they need to manually flip the floor, which makes them difficult to use.

Method used

An automatic telescopic staircase system is designed, which realizes automatic extension and retraction of the stairs through a sliding component and a driving device. It includes the threaded cooperation of the first stair block and the second stair block and the driving device, and the limit cooperation of the handrail and the connecting rod to realize automatic operation.

Benefits of technology

It realizes automatic extension and retraction of stairs without manual operation, is suitable for people of different heights, is easy to use, reduces operating difficulty, and improves convenience and safety of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of fast-assembly house telescopic stairs, in particular to a fast-assembly house with an automatic telescopic stair, which is provided with a first-floor space and a second-floor space. A mounting groove is formed in the bottom plate, a stair assembly is arranged in the mounting groove and comprises a first stair block and a second stair block, one end of the first stair block is rotatably arranged in the mounting groove, the second stair block is slidably arranged on the first stair block through a sliding assembly, and the sliding assembly comprises a first screw, a first sliding block and a first driving device. A first screw hole is formed in the first sliding block, and the second ladder block is arranged on the first ladder block in a sliding mode through fixed arrangement of the first sliding block, driving of the first driving device and threaded fit of the first screw rod and the first screw hole. A channel is arranged on the top plate, and a turning plate is arranged on the channel; according to the multifunctional stair, the stair can be automatically extended, and the multifunctional stair is suitable for being used by people with different heights.
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Description

Technical Field

[0001] The utility model relates to the field of telescopic stairs for quick-install houses, in particular to a quick-install house with an automatic telescopic staircase. Background Art

[0002] A telescopic staircase is a staircase that can be stretched freely and does not require support. It has the advantages of being easy to carry and store, and is often used in home improvement projects.

[0003] During the installation of a quick-install house, the second floor space will be used as a storage or sightseeing space. At this time, a telescopic staircase can be used as a medium to connect the first and second floors. There are three main types of telescopic stairs that are popular on the market: manual telescopic stairs, electric telescopic stairs, and side-mounted telescopic stairs. Regardless of the type of telescopic staircase, the floor needs to be flipped out when in use to expose the telescopic staircase body. When used by people with limited mobility or short height, it is difficult to flip out the floor, which makes the use process very inconvenient. Summary of the Invention

[0004] The purpose of the utility model is to provide a quick-install house with an automatic telescopic staircase, which can automatically extend the staircase to facilitate use by people of different heights.

[0005] The technical solution for achieving the purpose of the utility model is as follows: the utility model comprises a first-layer space formed by a combination of a bottom plate, a side wall plate and a top plate, and a second-layer space located at the upper end of the first-layer space formed by a combination of a top wall plate and a top plate; a mounting groove is provided on the bottom plate, a stair assembly is provided in the mounting groove, the stair assembly comprises a first stair block and a second stair block, one end of the first stair block is rotatably arranged in the mounting groove, and the second stair block is slidably arranged on the first stair block by a sliding assembly, and the sliding assembly comprises a first screw rotatably arranged on the side surface of the first stair block and arranged along the extension direction of the first stair block, a first sliding block fixedly arranged on the lower end of the second stair block, and a first sliding block fixedly arranged on the first stair block and used to drive the first stair block The first driving device is used to rotate the screw, and the first sliding block is provided with a first screw hole which can form a threaded cooperation with the first screw. One end of the first screw is fixedly connected to the driving end of the first driving device and can be rotated under the drive of the first driving device. The second ladder block is slidably set on the first ladder block by the fixed setting of the first sliding block, the driving of the first driving device and the threaded cooperation between the first screw and the first screw hole; the top plate is provided with a channel connecting the first floor space and the second floor space, and a flap which can close the channel is rotatably provided on the channel, and the upper end of the second ladder block can form a pressure against the channel as it slides with the first ladder block; a driving component is also provided for driving the first ladder block to rotate.

[0006] The cam is secured in place with respect to the second guide rail, and the second guide rail is secured to a position detachable from the second guide rail when the cam is engaged with the second guide rail.

[0007] Furthermore, a first support seat and a second support seat are provided on the first ladder block, the first support seat is fixedly arranged at the upper end of the first ladder block, and the second support seat is fixedly arranged at the lower end of the first ladder block, and the first screw is rotatably arranged on the first support seat and the second support seat at the same time, and the first sliding block and the first thread form a threaded fit with a section of the first support seat located between the first support seat and the second support seat; the first support seat and the second support seat can both form a limiting fit with the first sliding block, and the first sliding block is limited on the first screw under the limiting action of the first support seat and the second support seat.

[0008] Furthermore, an escalator assembly is provided on the second ladder block, and the escalator assembly includes a handrail and a plurality of connecting rods, each connecting rod is evenly arranged along the extension direction of the handrail, one end of each connecting rod is rotatably set on the handrail, and the other end of each connecting rod is rotatably set on the second ladder block, and the handrail is stored on the second ladder block through the rotation setting of the two ends of the connecting rod; the second ladder block is provided with a plurality of limit blocks which are arranged one-to-one with the connecting rods and can form a limit fit with the connecting rods, and the handrail is fixed by the limit block and the limit fit of the connecting rod.

[0009] The top end of the left side panel is rotatably connected to one end of the first support plate by the first connecting piece, and the top end of the right side panel is rotatably connected to one end of the second support plate by the second connecting piece, and the other end of the second support plate is rotatably connected to one end of the third support plate by the third connecting piece.

[0010] Furthermore, the horizontal position of the first connecting member is higher than the horizontal position of the second connecting member. When the first support plate, the second support plate and the third support plate do not rotate, the third support plate is stacked on the second support plate, the first support plate is pressed against the third support plate, and an entry space is formed between the first support plate and the top plate.

[0011] The utility model has positive effects: (1) the second ladder block of the utility model is slidably set on the first ladder block through a sliding component, the sliding component includes a first screw, a first sliding block and a first driving device, the second ladder block is slidably set on the first ladder block through the fixed setting of the first sliding block, the driving of the first driving device and the threaded cooperation between the first screw and the first screw hole, and is also provided with a driving component for driving the first ladder block to rotate; the first ladder block is driven by the driving component to rotate and the second ladder block is driven by the sliding component to slide, so that the first ladder block and the second ladder block can automatically rotate and slide without manual operation, which is more labor-saving and convenient for people of different heights to use.

[0012] (2) The second driving device of the present invention drives the first ladder block to rotate by driving the second screw, threading the second screw and the second screw hole, and rotating the two ends of the connecting plate. The driving of the second driving device, threading the second screw and the second screw hole, and rotating the two ends of the connecting plate make the rotation more labor-saving and the rotation speed controllable.

[0013] (3) The first ladder block of the present invention is provided with a first support seat and a second support seat, and the first support seat and the second support seat can both form a limiting fit with the first sliding block, and the first sliding block is restricted on the first screw rod under the limiting action of the first support seat and the second support seat; through the setting of the first support seat and the second support seat, the first sliding block can be prevented from detaching from the first screw rod, and the sliding distance of the second ladder block can be determined.

[0014] (4) The second stair block of the present invention is provided with an escalator assembly, which includes a handrail and a plurality of connecting rods. The second stair block is provided with a plurality of limit blocks which are arranged in a one-to-one correspondence with the connecting rods and can form a limit fit with the connecting rods. The handrail is fixed by the limit fit of the limit blocks and the connecting rods; the handrail is convenient for users to support when in use, and is connected by rotating the connecting rods and can be stored on the second stair block when the stair assembly is in use.

[0015] (5) The first support plate, the second support plate and the third support plate of the present invention form a two-layer space whose front and rear sides are connected to the outside through the connection cooperation of the first connecting member, the second connecting member and the third connecting member and the snap-fit ​​cooperation combination of the card block and the card slot. The filling plate is fixedly connected with the top plate, the first support plate, the second support plate and the third support plate at the same time and is used to fill the part of the two-layer space connected to the outside; the volume of the quick-install house during transportation is reduced to ensure transportation safety.

[0016] (6) The horizontal position of the first connecting member of the present invention is higher than the horizontal position of the second connecting member. When the first support plate, the second support plate and the third support plate do not rotate, the third support plate is stacked on the second support plate, the first support plate is pressed against the third support, and an entry space is formed between the first support plate and the top plate; the entry space can be used for personnel to enter the interior by using the staircase assembly, so that the first support plate, the second support plate and the third support plate can be unfolded and fixed from the inside through the cooperation of the first connecting member, the second connecting member, the third connecting member and the card slot and the card block, which is more convenient for the construction of the quick-install house. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a front sectional view of the present utility model;

[0020] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0021] Figure 4 for Figure 2 Partial enlarged view of middle B;

[0022] Figure 5 for Figure 2 Partial enlarged view of middle C;

[0023] Figure 6 for Figure 2 Partial enlarged view of middle D;

[0024] Figure 7 for Figure 2 Partial enlarged view of middle E;

[0025] Figure 8 for Figure 2 A partial enlarged view of middle F;

[0026] Figure 9 This is a schematic diagram of the assembly of the first connecting block and the second connecting block in the present invention. DETAILED DESCRIPTION

[0027] See Figures 1 to 9 The utility model has a first-floor space formed by a combination of a bottom plate 1, a side wall plate and a top plate 2, and a second-floor space located at the upper end of the first-floor space formed by a combination of a top wall plate and a top plate 2; a mounting groove 3 is provided on the bottom plate 1, a stair assembly 4 is provided in the mounting groove 3, the stair assembly 4 includes a first stair block 41 and a second stair block 42, one end of the first stair block 41 is rotatably set in the mounting groove 3, and the second stair block 42 is slidably set on the first stair block 41 through a sliding assembly 5, and the sliding assembly 5 includes a first screw rod 51 rotatably set on the side of the first stair block 41 and set along the extension direction of the first stair block 41, a first sliding block 52 fixedly set on the lower end of the second stair block 42, and a first driving rod fixedly set on the first stair block 41 and used to drive the first screw rod 51 to rotate The first ladder block 42 is provided with a first screw hole which can form a threaded fit with the first screw rod 51, and one end of the first screw rod 51 is fixedly connected to the driving end of the first driving device 53 and can be rotated under the drive of the first driving device 53. The second ladder block 42 is slidably set on the first ladder block 41 by the fixed setting of the first sliding block 52, the drive of the first driving device 53 and the threaded fit of the first screw rod 51 and the first screw hole; the top plate 2 is provided with a channel 21 connecting the first floor space and the second floor space, and a flap 22 which can close the channel 21 is rotatably provided on the channel 21, and the upper end of the second ladder block 42 can form a pressure against the channel 21 as it slides with the first ladder block 41; and a driving component for driving the first ladder block 41 to rotate is also provided.

[0028] The first ladder block 41 is rotatably mounted at the bottom of the mounting groove 3. The length of the first ladder block 41 is 1.5m to 1.6m. The length of the second ladder block 42 is slightly smaller than that of the first ladder block 41.

[0029] A slide groove 31 is provided on the side wall of the mounting groove 3, and a mounting cavity 11 connected to the slide groove 31 is also provided on the bottom plate 1; the driving assembly includes a second driving device 61, a second screw 62, a second sliding block 63 and a connecting plate 64, the second driving device 61 is arranged in the mounting cavity 11, one end of the second screw 62 is fixedly connected to the driving end of the second driving device 61 and can be rotated under the drive of the second driving device 61, the other end of the second screw 62 extends into the slide groove 31, the second sliding block 63 is slidably set in the slide groove 31, and the second sliding block 63 is slidably set in the slide groove 31. The movable block 63 is provided with a second screw hole that can form a threaded match with the second screw rod 62. The second sliding block 63 is set in the slide groove 31 by the drive of the second driving device 61 and the threaded sliding of the second screw rod 62 and the second screw hole; one end of the connecting plate 64 is rotatably set on the second ladder block 42, and the other end of the connecting plate 64 is rotatably set on the second sliding block 63. The second driving device 61 drives the first ladder block 41 to rotate by driving the second screw rod 62, the threaded match of the second screw rod 62 and the second screw hole, and the rotation setting of the two ends of the connecting plate 64.

[0030] The first ladder block 41 and the second ladder block 42 are driven by the first driving device 53 and the second driving device 61 respectively and can operate simultaneously.

[0031] The first ladder block 41 is provided with a first support seat 411 and a second support seat, the first support seat 411 is fixedly arranged at the upper end of the first ladder block 41, and the second support seat is fixedly arranged at the lower end of the first ladder block 41, and the first screw 51 is rotatably arranged on the first support seat 411 and the second support seat at the same time, and the first sliding block 52 forms a threaded fit with a section of the first thread located between the first support seat 411 and the second support seat; the first support seat 411 and the second support seat can both form a limiting fit with the first sliding block 52, and the first sliding block 52 is limited on the first screw 51 under the limiting action of the first support seat 411 and the second support seat.

[0032] The second ladder block 42 is provided with an escalator assembly 7, which includes a handrail 71 and a plurality of connecting rods 72. The connecting rods 72 are evenly arranged along the extension direction of the handrail 71, and one end of each connecting rod 72 is rotatably set on the handrail 71, and the other end of each connecting rod 72 is rotatably set on the second ladder block 42. The handrail 71 is stored on the second ladder block 42 through the rotation setting of the two ends of the connecting rod 72; the second ladder block 42 is provided with a plurality of limit blocks that are arranged one-to-one with the connecting rod 72 and can form a limit fit with the connecting rod 72, and the handrail 71 is fixed by the limit fit of the limit block 73 and the connecting rod 72.

[0033] The side wall panels include a left side panel 8, a right side panel 9, a front panel and a rear panel, and the top wall panel includes a first support panel a, a second support panel b, a third support panel c and a filling panel d; the top end of the left side panel 8 is rotatably connected to one end of the first support panel a through a first connecting member, the top end of the right side panel 9 is rotatably connected to one end of the second support panel b through a second connecting member, and the other end of the second support panel b is rotatably connected to one end of the third support panel c through a third connecting member, and the extension direction of the third support panel c can be consistent with the extension direction of the second support panel b under the rotation connection action of the third connecting member, and the third support panel c can be connected to the second support panel b under the rotation connection action of the third connecting member. The other end of the first support plate a is provided with a card slot a-1, and the other end of the third support plate c is provided with a card block c-1 that can form a card fit with the card slot a-1. The first support plate a, the second support plate b and the third support plate c are connected to each other through the first connecting member, the second connecting member and the third connecting member, and the card block c-1 and the card slot a-1 to form a two-layer space whose front and back sides are connected to the outside. The filling plate d is fixedly connected with the top plate 2, the first support plate a, the second support plate b and the third support plate c at the same time and is used to fill the part of the two-layer space connected to the outside.

[0034] The first connecting member, the second connecting member and the third connecting member all include a first connecting block 10-1 and a second connecting block 10-2. The first connecting block 10-1 is provided with a rotation groove 10-3 extending along the extension direction of the first connecting block 10-1, and the first connecting block 10-1 is provided with a rotation ear 10-4 extending along the extension direction of the first connecting block 10-1 and capable of forming a match with the rotation groove 10-3; the top end of the left side plate 8 is connected to the second connecting block 10-2 of the first connecting member through the rotation groove 10-3 on the first connecting block 10-1 of the first connecting member. The cooperation of the rotating ear 10-4 forms a rotation connection with one end of the first support plate a, the top of the right side plate 9 forms a rotation connection with one end of the second support plate b through the cooperation of the rotating groove 10-3 on the first connecting block 10-1 of the second connecting member and the rotating ear 10-4 on the second connecting block 10-2 of the second connecting member, and the other end of the second support plate b forms a rotation connection with one end of the third support plate c through the cooperation of the rotating groove 10-3 on the first connecting block 10-1 of the third connecting member and the rotating ear 10-4 on the second connecting block 10-2 of the third connecting member.

[0035] The horizontal position of the first connecting member is higher than that of the second connecting member. When the first support plate a, the second support plate b and the third support plate c do not rotate, the third support plate c is stacked on the second support plate b, the first support plate a is pressed against the third support plate c, and an entry space is formed between the first support plate a and the top plate 2.

[0036] The first connecting member, the second connecting member and the third connecting member all include a first connecting block 10-1 and a second connecting block 10-2. The first connecting block 10-1 is provided with a rotation groove 10-3 extending along the extension direction of the first connecting block 10-1, and the first connecting block 10-1 is provided with a rotation ear 10-4 extending along the extension direction of the first connecting block 10-1 and capable of forming a match with the rotation groove 10-3; the top end of the left side plate 8 is connected to the second connecting block 10-2 of the first connecting member through the rotation groove 10-3 on the first connecting block 10-1 of the first connecting member. The cooperation of the rotating ear 10-4 forms a rotation connection with one end of the first support plate a, the top of the right side plate 9 forms a rotation connection with one end of the second support plate b through the cooperation of the rotating groove 10-3 on the first connecting block 10-1 of the second connecting member and the rotating ear 10-4 on the second connecting block 10-2 of the second connecting member, and the other end of the second support plate b forms a rotation connection with one end of the third support plate c through the cooperation of the rotating groove 10-3 on the first connecting block 10-1 of the third connecting member and the rotating ear 10-4 on the second connecting block 10-2 of the third connecting member.

[0037] The first connecting block 10-1 of the first connecting member is fixedly set on the left side plate 8, and the second connecting block 10-2 of the first connecting member is fixedly set on the first support plate a; the first connecting block 10-1 of the second connecting member is fixedly set on the second support plate b, and the second connecting block 10-2 of the first connecting member is fixedly set on the right side plate 9; the first connecting block 10-1 of the third connecting member is fixedly set on the right side plate 9, and the second connecting block 10-2 of the first connecting member is fixedly set on the third support plate c.

[0038] The rotation groove 10-3 on the first connection block 10-1 of the first connection member and the rotation groove 10-3 on the first connection block 10-1 of the second connection member are arranged toward the inside of the second-floor space, and the rotation groove 10-3 on the first connection block 10-1 of the third connection member is arranged toward the outside.

[0039] The horizontal position of the first connecting member is higher than that of the second connecting member. When the first support plate a, the second support plate b and the third support plate c do not rotate, the third support plate c is stacked on the second support plate b, the first support plate a is pressed against the third support, and an entry space is formed between the first support plate a and the top plate 2.

[0040] The working principle of the present utility model is as follows: the cover on the mounting groove 3 is removed, and the first ladder block 41 is driven to rotate away from the mounting groove 3 by the second driving device 61 through the driving of the second screw 62, the threaded cooperation of the second screw 62 and the second screw hole, and the rotation setting of the two ends of the connecting plate 64. During the rotation of the first ladder block 41, the second ladder block 42 slides toward the top plate 2 on the first ladder block 41 through the fixed setting of the first sliding block 52, the driving of the first driving device 53, and the threaded cooperation of the first screw 51 and the first screw hole. During the sliding process of the second ladder block 42, the flap 22 on the channel 21 will be pushed open. When the first sliding block 52 and the first support seat 411 form a limit, the second ladder block 42 pushes open the flap 22 and presses against the channel 21. The handrail 71 on the second ladder block 42 is fixed by the limit stopper 73 and the limit cooperation of the connecting rod 72.

[0041] When the stair assembly 4 is to be retracted, the flap 22 is covered. At this time, the second stair block 42 supports the flap 22, and the handrail 71 is stored on the second stair block 42 through the rotation of the connecting rod 72; then, through the fixed setting of the first sliding block 52, the driving of the first driving device 53, and the threaded cooperation of the first screw 51 and the first screw hole, the second stair block 42 slides toward the base plate 1 on the first stair block 41. At the same time, the second driving device 61 drives the second screw 62, the threaded cooperation of the second screw 62 and the second screw hole, and the rotation setting of the two ends of the connecting plate 64 to drive the first stair block 41 to rotate toward the installation groove 3; when the first sliding block 52 and the second support seat form a limit, the second stair block 42 completes retraction and can enter the installation groove 3 as the first stair block 41 rotates. After the first stair block 41 and the second stair block 42 are completely in the installation groove 3, the cover is closed to complete the retraction.

[0042] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-install house with an automatic retractable staircase, comprising a first-floor space formed by a combination of a bottom plate (1), side wall plates, and a top plate (2), and a second-floor space located above the first-floor space formed by a combination of a top wall plate and the top plate (2); characterized in that: The base plate (1) is provided with a mounting groove (3), and a staircase assembly (4) is provided in the mounting groove (3). The staircase assembly (4) includes a first staircase block (41) and a second staircase block (42). One end of the first staircase block (41) is rotatably provided in the mounting groove (3), and the second staircase block (42) is slidably provided on the first staircase block (41) through a sliding assembly (5). The sliding assembly (5) includes a first screw rod (51) rotatably provided on the side of the first staircase block (41) and provided along the extension direction of the first staircase block (41), a first sliding block (52) fixedly provided on the lower end of the second staircase block (42), and a first driving device (53) fixedly provided on the first staircase block (41) and used for driving the first screw rod (51) to rotate. The first sliding block (52) is provided with a first screw rod (51) that can rotate with the first screw rod ( The first ladder block (41) is provided with a first screw hole for threaded engagement, one end of the first screw rod (51) is fixedly connected to the driving end of the first driving device (53) and can be rotated under the drive of the first driving device (53), and the second ladder block (42) is slidably arranged on the first ladder block (41) through the fixed arrangement of the first sliding block (52), the driving of the first driving device (53) and the threaded engagement of the first screw rod (51) and the first screw hole; the top plate (2) is provided with a channel (21) for connecting the first layer space and the second layer space, and a flap (22) for closing the channel (21) is rotatably provided on the channel (21), and the upper end of the second ladder block (42) can form abutment with the channel (21) as it slides with the first ladder block (41); and a driving component for driving the first ladder block (41) to rotate is also provided.

2. The quick-install house with an automatic retractable staircase according to claim 1, characterized in that: A slide groove (31) is provided on the side wall of the installation groove (3), and a mounting cavity (11) connected to the slide groove (31) is also provided on the bottom plate (1); the driving assembly includes a second driving device (61), a second screw rod (62), a second sliding block (63) and a connecting plate (64), the second driving device (61) is arranged in the mounting cavity (11), one end of the second screw rod (62) is fixedly connected to the driving end of the second driving device (61) and can be rotated under the drive of the second driving device (61), the other end of the second screw rod (62) extends into the slide groove (31), and the second sliding block (63) is slidably arranged in the slide groove (31) The second sliding block (63) is provided with a second screw hole that can form a threaded match with the second screw rod (62). The second sliding block (63) is set in the sliding groove (31) by the driving of the second driving device (61) and the threaded sliding of the second screw rod (62) and the second screw hole; one end of the connecting plate (64) is rotatably set on the second ladder block (42), and the other end of the connecting plate (64) is rotatably set on the second sliding block (63). The second driving device (61) drives the first ladder block (41) to rotate by driving the second screw rod (62), the threaded match of the second screw rod (62) and the second screw hole, and the rotation setting of the two ends of the connecting plate (64).

3. The quick-install house with an automatic retractable staircase according to claim 1, characterized in that: The first ladder block (41) is provided with a first support seat (411) and a second support seat, the first support seat (411) is fixedly arranged at the upper end of the first ladder block (41), and the second support seat is fixedly arranged at the lower end of the first ladder block (41), the first screw rod (51) is rotatably arranged on the first support seat (411) and the second support seat at the same time, and the first sliding block (52) forms a threaded fit with a section of the first thread located between the first support seat (411) and the second support seat; the first support seat (411) and the second support seat can both form a limiting fit with the first sliding block (52), and the first sliding block (52) is limited on the first screw rod (51) under the limiting action of the first support seat (411) and the second support seat.

4. The quick-install house with automatic retractable stairs according to claim 1, characterized in that: The second ladder block (42) is provided with an escalator assembly (7), which includes a handrail (71) and a plurality of connecting rods (72). The connecting rods (72) are evenly arranged along the extension direction of the handrail (71). One end of each connecting rod (72) is rotatably arranged on the handrail (71), and the other end of each connecting rod (72) is rotatably arranged on the second ladder block (42). The handrail (71) is received on the second ladder block (42) by the rotation of the two ends of the connecting rod (72). The second ladder block (42) is provided with a plurality of limit blocks which are arranged in one-to-one correspondence with the connecting rod (72) and can form a limit match with the connecting rod (72). The handrail (71) is fixed by the limit match of the limit block (73) and the connecting rod (72).

5. The quick-install house with automatic retractable stairs according to claim 1, characterized in that: The side wall panels include a left side panel (8), a right side panel (9), a front panel and a rear panel, and the top wall panel includes a first support panel (a), a second support panel (b), a third support panel (c) and a filling panel (d); the top end of the left side panel (8) is rotatably connected to one end of the first support panel (a) through a first connecting member, the top end of the right side panel (9) is rotatably connected to one end of the second support panel (b) through a second connecting member, and the other end of the second support panel (b) is rotatably connected to one end of the third support panel (c) through a third connecting member, and the extension direction of the third support panel (c) can be consistent with the extension direction of the second support panel (b) under the rotational connection action of the third connecting member, and the third support panel (c) is rotatably connected to one end of the second support panel (b). The other end of a support plate (a) is provided with a card slot (a-1), and the other end of a third support plate (c) is provided with a card block (c-1) that can form a card engagement with the card slot (a-1). The first support plate (a), the second support plate (b) and the third support plate (c) are connected to each other through the first connecting member, the second connecting member and the third connecting member, and the card block (c-1) and the card slot (a-1) to form a two-layer space whose front and rear sides are connected to the outside. The filling plate (d) is fixedly connected to the top plate (2), the first support plate (a), the second support plate (b) and the third support plate (c) and is used to fill the part of the two-layer space that is connected to the outside.

6. The quick-install house with automatic retractable stairs according to claim 5, characterized in that: The horizontal position of the first connecting member is higher than the horizontal position of the second connecting member. When the first support plate (a), the second support plate (b) and the third support plate (c) do not rotate, the third support plate (c) is stacked on the second support plate (b), the first support plate (a) is pressed against the third support plate (c), and an entry space is formed between the first support plate (a) and the top plate (2).