Indoor storage stair capable of reducing occupied space and construction method thereof

Abstract

The invention provides an indoor storage stairway capable of reducing occupied space and a construction method thereof, and relates to the technical field of indoor architecture.The indoor storage stairway comprises a first stairway body and a second stairway body which are staggered, the stairway body is composed of a plurality of storage cabinets arranged in an array mode in the oblique line direction, and each storage cabinet comprises a cabinet body; the storage cabinet comprises a cabinet body, the bottom of the cabinet body is an inclined bearing bottom plate, a partition assembly is arranged in the middle of the interior of the storage cabinet, the interior of the storage cabinet is divided into a first storage cavity located on the upper portion and a second storage cavity located on the lower portion through the partition assembly, and the top of the cabinet body is provided with a first mounting opening and a first cover plate assembly; and a second mounting opening and a second cover plate assembly are arranged at the top of the front surface, far away from the bearing bottom plate, of the cabinet body. The utilization rate of the space in the staggered stair is greatly increased, the overall structural strength is high, the stability is high, and the walking stability and safety of family members are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of interior building technology, and in particular to an interior storage staircase that reduces space occupation and its construction method. Background Technology

[0002] In the field of decoration and renovation projects, especially in home improvement projects, it is common to encounter situations where indoor staircases need to be added due to attics, double-height duplex apartments, and other similar layouts. Conventional staircases, while balancing tread width and slope requirements, often result in a significant loss of usable indoor space. Furthermore, the space occupied by staircases is inefficient and often appears cluttered, making their application in ordinary residential homes a considerable waste of space. In addition, while meeting the requirements for stair slope and clear height, the opening size required at the top of the staircase is large, further reducing the upper floor's indoor area and hindering the utilization of interior space in ordinary residential homes.

[0003] To address the disadvantages of the aforementioned staircase design, existing technologies utilize asymmetrical staircases. These staircases are typically constructed of wood, and the use of openable cabinets as steps increases storage space—a win-win situation. However, these steps are often high and steep, requiring a large, sloping support structure at the bottom. A triangular storage area exists between the storage steps and the sloping support structure. Whether the opening is at the top or front, the depth makes it difficult to access items within this space. Some designs use horizontal partitions at the bottom of the cabinets to achieve bottom separation, but this directly wastes storage space and significantly reduces storage efficiency.

[0004] Background technology patent literature reference: CN212957328U. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an indoor storage staircase that reduces space occupation and its construction method. This invention greatly improves the utilization rate of space within the staircase, and has high overall structural strength and stability, ensuring the stability and safety of family members walking.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0007] An indoor storage staircase that reduces space occupation includes two staircase main bodies that intersect each other. Each staircase main body is composed of multiple storage cabinets arranged in an array along a diagonal direction. Each storage cabinet includes a cabinet body with an inclined support base plate at the bottom. A partition component is arranged in the middle of the storage cabinet, dividing the interior of the storage cabinet into a first storage chamber at the top and a second storage chamber at the bottom. A first installation opening and a first cover plate assembly are provided on the top of the cabinet body away from the support base plate. A second installation opening and a second cover plate assembly are provided on the top front of the cabinet body away from the support base plate. A locking component is provided between the bottom of the second cover plate assembly and the partition component.

[0008] Preferably, the second cover plate assembly has an L-shaped vertical cross section and is rotatably connected to the inner wall of the cabinet. The bottom of the L-shaped second cover plate assembly extends toward the partition assembly and the two are located in the same horizontal plane. A locking opening for accommodating the locking assembly is provided between the second cover plate assembly and the partition assembly. The locking assembly is inserted into the locking opening to connect the second cover plate assembly and the partition assembly to achieve their fixation. The locking assembly is pulled out from the locking opening to achieve the separation of the second cover plate assembly and the partition assembly.

[0009] Preferably, the locking assembly is a rigid limiting bolt, and a locking structure is provided between the outer side of the limiting bolt and the outer side of the locking opening.

[0010] Preferably, the first cover plate assembly has a limiting hole at its top, and the edge of the first cover plate assembly is connected to the adjacent cabinet via a hinge. The limiting hole has an arc-shaped deflection path, and the end of the locking assembly is located on the arc-shaped deflection path.

[0011] Preferably, a reset elastic element is provided inside the locking opening, and the reset elastic element is located on the moving path of the limit bolt.

[0012] Preferably, the partition assembly includes a partition plate, which is rotatably connected to the inner wall of the cabinet via a partition shaft, and a damped pneumatic deflection element is provided on the outer side of the partition shaft.

[0013] Preferably, the reset elastic element is an elastic airbag, and the pneumatic deflection element is provided with an elastic reset chamber and a balance chamber, and the elastic airbag is connected to the balance chamber of the pneumatic deflection element.

[0014] Preferably, a stop is provided inside the cabinet, and the stop is located below the rotation path of the partition.

[0015] Preferably, a wedge-shaped strip is provided at the bottom of the front of the cabinet, and a wedge-shaped groove is provided at the top of the back of the cabinet.

[0016] A construction method for an indoor storage staircase that reduces space occupation, used to construct the aforementioned indoor storage staircase that reduces space occupation, includes the following steps: S1, determining the installation area between the high floor and the low floor, and installing an inclined support frame; S2, arranging multiple pre-made storage cabinets in sequence according to height along the support frame to form an interlaced staircase main body one and staircase main body two; wherein, the second cover assembly of the storage cabinet is in an open and deflectable state; S3, conducting an activity test on the first cover assembly, second cover assembly, and partition assembly of the multiple storage cabinets to ensure that the first cover assembly, second cover assembly, and partition assembly of the multiple storage cabinets can all be opened normally.

[0017] The beneficial effects of this invention are as follows:

[0018] Compared with existing technologies, the above structural design can efficiently utilize the awkward structure inside the second storage compartment, greatly improving the utilization rate of the space inside the staircase. At the same time, the height of the front of the cabinet can be reduced by the openable first and second cover components, making it easier for people to access the items stored in the second storage compartment. In addition, the locking components on the outside can lock and limit the overall structure, ensuring the stability of the second cover components, partition components and other structures in the storage state. The first and second storage compartments form two stable locking structures, with high overall structural strength and stability, ensuring the stability and safety of family members walking. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the existing technology structure.

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 3 For the present invention Figure 2 A schematic diagram of the main structure.

[0022] Figure 4 For the present invention Figure 2 A side view structural diagram.

[0023] Figure 5 This is a three-dimensional structural diagram of the storage cabinet of the present invention.

[0024] Figure 6 For the present invention Figure 5 A schematic diagram of the main structure.

[0025] Figure 7 For the present invention Figure 5 A schematic diagram of the rear view structure.

[0026] Figure 8 For the present invention Figure 5A top-view structural diagram.

[0027] Figure 9 For the present invention Figure 8 A schematic diagram of the AA-direction cross-section structure.

[0028] Figure 10 For the present invention Figure 9 A magnified structural diagram at point B.

[0029] In the diagram: 100, Staircase Main Body 1; 200, Staircase Main Body 2; 300, Storage Cabinet; 310, Cabinet Body; 3101, First Storage Chamber; 3102, Second Storage Chamber; 311, Supporting Base Plate; 320, First Cover Plate Assembly; 321, Hinge; 322, Limiting Hole; 330, Second Cover Plate Assembly; 331, Vertical Plate; 332, Horizontal Plate; 333, Cover Plate Rotating Shaft; 340, Locking Assembly; 350, Wedge Strip; 360, Divider Assembly; 361, Pneumatic Deflection Element; 362, Divider Rotating Shaft; 363, Divider Plate; 364, Reset Elastic Element; 365, Protective Block; 366, Stop Block; 370, Wedge Groove. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] To address the problems mentioned in the background art, see Appendix Figure 1 - Appendix Figure 10 An indoor storage staircase that reduces space occupation includes staircase body 100 and staircase body 200 that are staggered. The steps of staircase body 100 and staircase body 200 are of different heights. When walking, the person steps on one side of staircase body 100 or staircase body 200 with their left and right feet respectively, which can achieve the same walking effect as a normal non-staggered staircase.

[0032] The main body of the staircase consists of multiple storage cabinets 300 arranged in an array along a diagonal direction. These storage cabinets 300 can be prefabricated using wooden materials, and their dimensions are predetermined according to the required installation inclination and height. During on-site construction, the multiple storage cabinets 300 are assembled and spliced ​​to form the overall structure of staircase main body 100 and staircase main body 200. Adjacent storage cabinets 300 can be connected and fixed with mortise and tenon joints, nails, and other structures to ensure the stability between adjacent structures.

[0033] Specifically, the locker 300 includes a cabinet body 310, the bottom of which is an inclined support plate 311. The support plate 311 has the same inclination as the wooden support frame at the bottom. After installation, the bottom of the support plate 311 is completely flush with the upper surface of the support frame. A partition component 360 is arranged in the middle of the locker 300, which divides the locker 300 into a first storage chamber 3101 at the top and a second storage chamber 3102 at the bottom. Compared with the traditional structure, the area of ​​the second storage chamber 3102 can be fully utilized, greatly increasing the storage space in the stairwell. At the same time, the first storage chamber 3101 and the second storage chamber 3102 are separated by the adjustable partition component 360. The bottom of the first storage chamber 3101 is in a horizontal state, which facilitates the retrieval and placement of items in the first storage chamber 3101, and also facilitates the storage of items in the first storage chamber 3101.

[0034] The first storage compartment 3101, with its flat bottom, can hold frequently used items that require a flat bottom, such as wine glasses and beverages; the second storage compartment 3102, with its sloping bottom, can hold less frequently used items, such as seasonal clothes and quilts.

[0035] To ensure the staircase can bear weight and be used normally while facilitating access to items in the first storage chamber 3101 and the second storage chamber 3102, especially the second storage chamber 3102, a first installation opening and a first cover assembly 320 are provided on the top of the cabinet 310. By flipping the first cover assembly 320 to offset it from the first installation opening at the top, the first storage chamber 3101 is opened to the environment, allowing for quick access to the items inside. A second installation opening and a second cover assembly 330 are provided on the top front side of the cabinet 310 away from the supporting base plate 311. The first cover assembly 320... After the second cover assembly 330 is opened, the partition assembly 360 is flipped open, exposing the second storage chamber 3102 to the environment, allowing access to items inside. Simultaneously, the removal or flipping of the second cover assembly 330 significantly reduces the height of the front of the cabinet 310, allowing family members, especially children, to easily reach their arms into the bottom of the second storage chamber 3102 to retrieve items. This efficient use of space in the second storage chamber 3102 facilitates easy access to stored items, greatly improving overall space utilization.

[0036] To ensure the stability of the overall structure, a locking component 340 is provided between the bottom of the second cover assembly 330 and the partition assembly 360. The locking component 340 ensures that the internal partition assembly 360 and the external second cover assembly 330 are in a relatively stable state, preventing the second cover assembly 330 and the partition assembly 360 from shaking during storage and walking, thus avoiding affecting the storage of items and normal passage of the stairs. At the same time, a locking mechanism can also be provided at the bottom of the top first cover assembly 320 to limit the top of the second cover assembly 330. At this time, both the upper and lower sides of the second cover assembly 330 are in a limited state, allowing family members to walk conveniently and stably above the first cover assembly 320, ensuring installation stability.

[0037] The locking mechanism described above can be either a pin structure or a snap-fit ​​structure. When the first cover assembly 320 is in a horizontal state, it can lock and limit the second cover assembly 330. At this time, the first cover assembly 320 at the top, the second cover assembly 330 at the front, the internal partition assembly 360, and the cabinet 310 are locked stably. The first storage chamber 3101 and the second storage chamber 3102 together form two stable locking structures with high overall structural strength and stability.

[0038] In summary, the above structural design allows for efficient utilization of the otherwise unusable structure within the second storage compartment 3102, significantly improving the space utilization rate within the staircase. Simultaneously, the openable first cover assembly 320 and second cover assembly 330 reduce the height of the front of the cabinet 310, facilitating access to items stored in the second storage compartment 3102. Furthermore, the external locking assembly 340 locks and limits the overall structure, ensuring the stability of the second cover assembly 330, the partition assembly 360, and other structures in the storage state. The first storage compartment 3101 and the second storage compartment 3102 together form two stable locking structures, resulting in high overall structural strength and stability, ensuring the stability and safety of family members walking through them.

[0039] Furthermore, the second cover plate assembly 330 has an L-shaped vertical cross section and is rotatably connected to the inner wall of the cabinet 310. The L-shaped bottom of the second cover plate assembly 330 extends toward the partition assembly 360 and the two are located in the same horizontal plane. A locking opening for accommodating the locking assembly 340 is provided between the second cover plate assembly 330 and the partition assembly 360. The locking assembly 340 is inserted into the locking opening to connect the second cover plate assembly 330 and the partition assembly 360 to achieve their fixation. The locking assembly 340 is pulled out from the locking opening to achieve the separation of the second cover plate assembly 330 and the partition assembly 360.

[0040] Specifically, the second cover plate assembly 330 includes a vertical plate 331 and a horizontal plate 332 located at the bottom. The vertical plate 331 and the horizontal plate 332 form an L-shaped structure. The bending positions of the vertical plate 331 and the horizontal plate 332 are rotatably connected to the inner wall of the cabinet 310 through the cover plate pivot 333. The cover plate pivot 333 can be selected as a damping pivot to facilitate the stable rotation of the vertical plate 331 and the horizontal plate 332. The locking opening passes through the vertical plate 331, the horizontal plate 332, the cover plate pivot 333, and the inner partition component 360. When the partition component 360 and the horizontal plate 332 are in a horizontal state, the locking opening is a horizontally arranged or slightly inclined opening along an axis. At this time, the locking component 340 can be inserted into the locking opening to lock and limit the second cover plate assembly 330 and the partition component 360, preventing them from moving and shaking.

[0041] The locking component 340 here has a certain length, which can penetrate deep into the interior of the separating component 360, thereby increasing the support and limiting distance, reducing the pressure per unit area, and ensuring the overall stability of the locking and limiting.

[0042] Specifically, the locking component 340 is a rigid limit bolt. A locking structure is provided between the outer side of the limit bolt and the outer side of the locking opening. During the locking and limiting process, the limit bolt is inserted into the locking opening. The rigid limit bolt limits the structure on both sides. The locking structure can be a snap-fit ​​structure or a threaded structure. After the locking component 340 is inserted into the predetermined position, the locking structure ensures the stability of the limit bolt in the locked state on the outside.

[0043] A limiting hole 322 is formed at the top of the first cover assembly 320. The edge of the first cover assembly 320 is connected to the adjacent cabinet 310 via a hinge 321. The limiting hole 322 has an arc-shaped deflection path. The end of the locking assembly 340 is located on this arc-shaped deflection path. The locking assembly 340 protrudes outward for easy subsequent removal. At the same time, through the above structural design, when the first cover assembly 320 is opened to a lower position, the first cover assembly 320 flips towards a higher position. Finally, the first cover assembly 320 flips to a relatively vertical state. The limiting hole 322 at the top of the first cover assembly 320 locks and limits the locking assembly 340, ensuring the stability of the first cover assembly 320 in the open state.

[0044] The limiting hole 322 and the locking component 340 can also be selected as a snap-fit ​​structure or a magnetic structure. After the first cover plate component 320 is flipped to the predetermined position, the two are in a weak connection state, which ensures stability and will not affect the subsequent downward flipping and closing of the cover.

[0045] A reset elastic element 364 is provided inside the locking opening. The reset elastic element 364 is located on the movement path of the limit bolt. The limit bolt can be elastically reset by the reset elastic element 364. After the locking state of the locking structure outside the limit bolt and the deflection and pressing state of the second cover plate assembly 330 are canceled, the limit bolt can be popped outward under the action of the reset elastic element 364. After the limit bolt is popped outward, a larger area is exposed on the outside, which makes it easier for family members to manually pull it out.

[0046] The aforementioned reset elastic element 364 may include a rebounder. By squeezing the limiting bolt to the inner position, the limiting is hidden, avoiding any impact on normal walking. During the process of taking it out, it is only necessary to press it again to rebound.

[0047] Specifically, the partition assembly 360 includes a partition plate 363, which is rotatably connected to the inner wall of the cabinet 310 via a partition pivot 362. A damped pneumatic deflection element 361 is provided on the outside of the partition pivot 362. The partition plate 363 can be flipped around the partition pivot 362. The partition pivot 362 is located on the side away from the second cover assembly 330. When the partition plate 363 is flipped to a vertical position, it can fit against the inner surface of the back of the cabinet 310. At this time, the top of the second storage chamber 3102 is open, which facilitates the retrieval of the items stored inside.

[0048] The pneumatic deflection element 361 enables the automatic deflection of the partition plate 363. After removing the item above the partition plate 363 and removing the limiting effect on the partition plate 363, the pneumatic deflection element 361 can drive the partition plate 363 to move according to the attached... Figure 10 The partition opens automatically at 363 degrees by rotating clockwise, further reducing the difficulty of operation for staff and improving efficiency and convenience.

[0049] The preferred reset elastic element 364 is an elastic airbag, and the pneumatic deflection element 361 is provided with an elastic reset chamber and a balance chamber. The elastic airbag is connected to the balance chamber of the pneumatic deflection element 361.

[0050] A protective block 365 is provided on the outside of the elastic airbag. The protective block 365 can protect the inner elastic airbag and prevent it from being damaged prematurely due to excessive wear, thus reducing its service life.

[0051] As the limiting bolt is squeezed inward, it can squeeze the elastic airbag, squeezing the gas in the elastic airbag into the balance chamber to increase the pressure in the balance chamber. At this time, the positive pressure in the balance chamber can overcome the elastic force generated in the elastic reset chamber, controlling the partition plate 363 to be in a horizontal state and in a relatively balanced state.

[0052] During the process of pulling out the limiting bolt, the limiting on the outside of the elastic airbag disappears, and the elastic airbag can reset itself under its own elasticity. During the process of the elastic airbag expanding and resetting, it can extract the gas in the balance chamber. At this time, the air pressure in the balance chamber cannot counteract the elastic effect generated in the elastic reset chamber. At this time, the partition plate 363 as a whole rotates clockwise under the elastic effect of the elastic reset chamber, realizing automatic flipping and opening.

[0053] Elastic blocks or torsion springs can be installed in the elastic reset chamber to achieve elastic reset. A balance airbag can be installed in the balance chamber and connected to the elastic airbag to reduce the sealing requirements and frictional resistance of the pneumatic deflection element 361, and to enable the partition plate 363 to be easily flipped open.

[0054] A stop 366 is provided inside the cabinet 310. The stop 366 is located below the rotation path of the partition plate 363. The stop 366 can limit the deflection of the partition plate 363 by being located below, preventing the partition plate 363 from continuing to flip downward and failing to align with the second cover plate assembly 330 on the outside. This ensures the continuity of the locking opening and facilitates the insertion of the limit bolt.

[0055] After the items are fully contained in the second storage chamber 3102, the second cover assembly 330 is rotated clockwise to a vertical position and the partition assembly 360 is rotated counterclockwise to a horizontal position. At this time, a continuous locking opening is formed between the two, and then the limit bolt is inserted into the locking opening to achieve locking and limiting.

[0056] A wedge-shaped strip 350 is provided at the bottom of the front of the cabinet 310, and a wedge-shaped groove 370 is provided at the top of the back of the cabinet 310. Through the above structural design, it is easy to assemble multiple storage cabinets 300. Multiple storage cabinets 300 can be assembled by inserting them from bottom to top to complete the splicing of the first stair body 100 and the second stair body 200. It is also easy to adjust and replace them later. The first stair body 100 and the second stair body 200 can be locked and limited by detachable connectors to achieve longitudinal limitation, ensuring the stability and stability of the overall structure, ensuring the stability of storage and the safety of walking.

[0057] The invention will be further described below in conjunction with construction and usage methods.

[0058] A construction method for an indoor storage staircase that reduces space occupation, used for the aforementioned indoor storage staircase that reduces space occupation, includes the following steps: S1, determining the installation area between the high floor and the low floor, and installing an inclined support frame; determining the inclination degree of the support frame based on the height between the high floor and the low floor and the horizontal floor area of ​​the installation area, and determining the size specifications and quantity of the storage cabinets 300 in advance based on the above data, and prefabricating them in advance to facilitate subsequent assembly.

[0059] S2. Arrange the pre-made storage cabinets 300 sequentially according to height along the support frame to form staggered staircase main body 100 and staircase main body 200. Two diagonally adjacent storage cabinets 300 can be locked and limited by a mortise and tenon structure, and two horizontally adjacent storage cabinets 300 can be limited by a detachable installation tool. The second cover plate assembly 330 of the storage cabinet 300 is in an open and deflectable state. During the installation process, avoid interference or obstruction of related structures to prevent subsequent inability to flip over and affect the storage function.

[0060] S3. Finally, the first cover assembly 320, the second cover assembly 330, and the divider assembly 360 of the multiple lockers 300 are tested to ensure that the first cover assembly 320, the second cover assembly 330, and the divider assembly 360 of the multiple lockers 300 can be opened normally, which facilitates the storage and retrieval of items.

[0061] During use, first open the first cover assembly 320 and the second cover assembly 330, flip the first cover assembly 320 upward to a vertical position, and rotate the second cover assembly 330 downward counterclockwise to a horizontal position. After the second cover assembly 330 is rotated counterclockwise to a horizontal position, the front height of the cabinet 310 is reduced, and the partition assembly 360 is exposed to the environment and can be directly contacted. At the same time, control the partition assembly 360 to flip clockwise to a vertical position. At this time, the top of the second storage chamber 3102 is in an open position, and the items that need to be stored can be placed in the second storage chamber 3102.

[0062] After the items are stored in the second storage chamber 3102, the partition component 360 is restored to a horizontal state, and the second cover component 330 is restored to a vertical state. The locking component 340 is then inserted into the locking opening to lock and limit the second cover component 330 and the partition component 360, ensuring their stability. At this time, the partition component 360 at the bottom of the first storage chamber 3101 is in a horizontal state, and the items to be stored can be placed in the first storage chamber 3101 for storage.

[0063] After the items in the first storage chamber 3101 are stored, the first cover assembly 320 is closed to a horizontal position, which can seal the opening above the first storage chamber 3101. At this time, the upper part of the storage cabinet 300 is in a horizontal position, which can act as a step to support normal walking behavior.

[0064] During the retrieval process, the items in the first storage chamber 3101 are first taken out, and then the items in the second storage chamber 3102 are taken out. The retrieval process is the reverse of the storage process, and will not be described in detail here.

[0065] The above description is only a preferred 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 within the protection scope of the present invention.

Claims

1. An indoor storage staircase that reduces space occupation, comprising staircase body one (100) and staircase body two (200) that intersect each other, characterized in that: The main body of the staircase is composed of multiple storage cabinets (300). Each storage cabinet (300) includes a cabinet body (310), the bottom of which is an inclined support base plate (311). A partition component (360) is provided in the middle of the interior of the storage cabinet (300), which divides the interior of the storage cabinet (300) into a first storage chamber (3101) and a second storage chamber (3102). The cabinet (310) has a first installation opening at the top and a first cover plate assembly (320). The cabinet (310) has a second installation opening at the top front and a second cover plate assembly (330). A locking assembly (340) is provided between the bottom of the second cover plate assembly (330) and the partition assembly (360).

2. The indoor storage staircase with reduced space occupation according to claim 1, characterized in that, The second cover plate assembly (330) has an L-shaped vertical section and is rotatably connected to the inner wall of the cabinet (310). The L-shaped bottom of the second cover plate assembly (330) extends toward the partition assembly (360) and the two are located in the same horizontal plane. A locking opening for accommodating the locking assembly (340) is provided between the second cover plate assembly (330) and the partition assembly (360).

3. The indoor storage staircase with reduced space occupation according to claim 2, characterized in that, The locking assembly (340) is a rigid limiting bolt, and a locking structure is provided between the outer side of the limiting bolt and the outer side of the locking opening.

4. The indoor storage staircase with reduced space occupation according to claim 3, characterized in that, The first cover plate assembly (320) has a limiting hole (322) at the top. The edge of the first cover plate assembly (320) is connected to the adjacent cabinet (310) by a hinge (321). The limiting hole (322) has an arc-shaped deflection path. The end of the locking assembly (340) is located on the arc-shaped deflection path.

5. The indoor storage staircase with reduced space occupation according to claim 3, characterized in that, A reset elastic element (364) is provided inside the locking opening, and the reset elastic element (364) is located on the moving path of the limit bolt.

6. The indoor storage staircase with reduced space occupation according to claim 5, characterized in that, The partition assembly (360) includes a partition plate (363), which is rotatably connected to the inner wall of the cabinet (310) via a partition shaft (362). A damped pneumatic deflection element (361) is provided on the outside of the partition shaft (362).

7. The indoor storage staircase with reduced space occupation according to claim 6, characterized in that, The reset elastic element (364) is an elastic airbag, and the pneumatic deflection element (361) is provided with an elastic reset chamber and a balance chamber. The elastic airbag is connected to the balance chamber of the pneumatic deflection element (361).

8. The indoor storage staircase with reduced space occupation according to claim 6, characterized in that, The cabinet (310) is provided with a stop (366), which is located below the rotation path of the partition plate (363).

9. The indoor storage staircase with reduced space occupation according to any one of claims 1-8, characterized in that, The bottom of the front of the cabinet (310) is provided with a wedge-shaped strip (350), and the top of the back of the cabinet (310) is provided with a wedge-shaped groove (370).

10. A construction method for an indoor storage staircase that reduces space occupation, characterized in that, The method for constructing an indoor storage staircase with reduced footprint as described in any one of claims 1-9 comprises the following steps: S1. Determine the installation area between the high and low floors, and install the inclined support frame; S2. Arrange multiple prefabricated storage cabinets (300) along the support frame in order of height to form staggered staircase main body one (100) and staircase main body two (200); wherein, the second cover plate assembly (330) of the storage cabinet (300) is in an open and deflectable state; S3. Perform an activity test on the first cover assembly (320), second cover assembly (330), and partition assembly (360) of multiple lockers (300) to ensure that the first cover assembly (320), second cover assembly (330), and partition assembly (360) of multiple lockers (300) can be opened normally.

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