A connecting component for a stair tread, riser, and turning connecting platform

Abstract

The present invention discloses a connection component for a stair tread, a riser, and a turning connection platform, which relates to the technical field of stair construction. A connection component for a stair tread, a riser, and a turning connection platform includes a housing mechanism. The housing mechanism includes a housing. A stair component is sequentially lapped on the rear wall surface of the housing. The stair component includes a riser mechanism, a tread mechanism, and a control component for connecting the riser mechanism and the tread mechanism. The riser mechanism includes a riser. Symmetric side bar components are respectively and fixedly connected to both sides of the riser. The riser of the topmost stair component is fixedly connected to the housing. The tread mechanism includes a tread. A first sliding rod is horizontally penetrated and fixedly connected to one side of the tread. Second retaining disks are fixedly connected to both ends of the first sliding rod. A second sliding rod is horizontally penetrated and fixedly connected to the other side of the tread. A connection component for a stair tread, a riser, and a turning connection platform enables the riser mechanism and the tread mechanism to be spliced at different angles to adapt to different usage situations.

Description

Technical Field

[0001] The present invention relates to the technical field of staircase construction, and specifically to a connecting component for staircase treads, risers and turning connecting platforms. Background Art

[0002] A component used for vertical transportation between floors in a building. It is used for traffic connection between floors and when there is a large height difference. Staircases are also provided in multi-storey and high-rise buildings where elevators and escalators are the main means of vertical transportation. Although elevators are used as the main vertical transportation means in high-rise buildings, staircases are still retained for escape in case of fire. A staircase consists of a continuous flight of steps (also known as a stair run), a landing (rest platform) and enclosing components. The horizontal projection distance between the lowest and highest steps of a staircase is the stair length, and the total height of the steps is the stair height.

[0003] Chinese Patent with Publication No. CN102108764A discloses a connection structure between a wooden staircase tread and a riser. It includes a tread board, an upper riser and a lower riser. A tread board wood shaving hole is provided on the lower surface of the tread board, and a lower riser wood shaving hole is provided on the upper surface of the lower riser. The tread board and the lower riser are connected and fixed by wood shavings. A tread board screw hole is provided on the rear surface of the tread board, and an upper riser screw hole is provided at the lower part of the upper riser. The tread board and the upper riser are connected and fixed by screws; the connection is firm and reliable, and the main connecting parts are not exposed, which does not affect the overall appearance.

[0004] In the technical solution of the above patent, the tread board and the riser are connected in a fixed form and cannot be deformed, which is not convenient and flexible enough for use, especially for handling. Therefore, there is an urgent need for a connecting component for staircase treads, risers and turning connecting platforms to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a connecting component for staircase treads, risers and turning connecting platforms to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A connecting component for staircase treads, risers and turning connecting platforms, including a housing mechanism. The housing mechanism includes a housing. A staircase component is sequentially lapped on the rear wall surface of the housing. The staircase component includes a riser mechanism, a tread mechanism and a control component for connecting the riser mechanism and the tread mechanism;

[0007] The riser mechanism includes a riser, and symmetric side bar components are respectively and fixedly connected to both sides of the riser;

[0008] The riser of the topmost staircase component is fixedly connected to the housing;

[0009] The step mechanism includes steps. One side of the step is horizontally and fixedly connected with a first sliding rod, and both ends of the first sliding rod are fixedly connected with second retaining discs. The other side of the step is horizontally and fixedly connected with a second sliding rod, and both ends of the second sliding rod are fixedly sleeved with third retaining discs flush with the second retaining discs.

[0010] As a preferred technical solution of the present invention, the housing mechanism further includes an adjustment component and a support plate component;

[0011] The adjustment component includes a cross beam fixedly connected to the housing. Third rail grooves are respectively opened at both ends of the upper surface of the cross beam. Suspension rods are respectively fixedly connected to both ends of the lower surface of the cross beam. Small holes are respectively penetrated through both ends of the cross beam. A suspension platform aligned with the cross beam is commonly penetrated by the two suspension rods. The suspension platform is hung on the suspension rods. A motor is fixedly connected to the middle of the lower surface of the suspension platform. The output end of the motor penetrates the suspension platform and is fixedly connected with a first pulley. Cross-shaped second push rods are respectively inserted into both ends of the suspension platform. The lower ends of the second push rods are movably connected to the suspension platform through bearings. The upper ends of the second push rods are adaptively penetrated through the small holes. A second pulley flush with the first pulley is fixedly sleeved on the outer side of the lower ends of the second push rods. A belt installed in the suspension platform is commonly sleeved on the first pulley and the second pulley;

[0012] The support plate component includes a support plate. Fourth rail grooves are respectively opened at both ends of the upper surface of the support plate. Columns are respectively fixedly connected to both ends of the lower surface of the support plate.

[0013] The side bar component includes side bars fixedly connected to the vertical plates. A slot is opened on one side of the upper part of the side bar;

[0014] A side platform is fixedly connected to one side of the upper end of the side bar. A first rail groove is opened on the side platform;

[0015] A rotating rod is vertically and movably inserted into the side bar. Washers installed on the side bar are respectively fixedly sleeved on the ends of the rotating rod;

[0016] A section of the rotating rod in the slot is threaded;

[0017] An inner groove is opened on the inner side of the lower part of the rotating rod;

[0018] A cross-shaped first push rod is vertically and movably inserted into the rotating rod. A first retaining disc adapted to slidably connect to the inner groove is fixedly sleeved on the lower part of the first push rod;

[0019] The first push rod of the lowermost stair component is directly opposite to the second pulley.

[0020] On one side of the surface of the step, foot plate grooves are evenly opened at equal intervals. A latching groove is opened on one side of the foot plate groove;

[0021] A foot plate is fitted and embedded in the foot plate groove, and a spring shaft is fixedly connected between the side of the foot plate close to the latching groove and the foot plate groove;

[0022] Anti-slip pads are fixedly connected to the surface of the foot plate at equal intervals and uniformly.

[0023] As a preferred technical solution of the present invention, the number of the control components is two, and the two control components are respectively on both sides of the vertical plate mechanism and are symmetrical;

[0024] Each control component includes a steering mechanism and a power mechanism;

[0025] The steering mechanism includes an L-shaped steering rail, a stand is fixedly connected to the rear side of the steering rail, and the stand is fixedly connected to the side bar;

[0026] A limit component for assisting the sliding of the step mechanism is embedded in the inner side of the fold angle of the steering rail;

[0027] A slide rail adapted to be inserted into the side platform is fixedly connected to the lower side of the steering rail. One end of the slide rail is flush with the stand and is fixedly connected to the lower side of the stand, and the other end of the slide rail extends out of the steering rail;

[0028] A card seat adapted to be inserted into the steering rail by screws is provided at the other end of the slide rail. A second rail groove adapted to be inserted into the slide rail is penetrated and opened at the lower part of the card seat;

[0029] The slide rail of the lowermost stair component is adapted to be inserted into the third rail groove and the fourth rail groove.

[0030] The limit component includes a connecting rail adapted to be embedded in the steering rail. Annular moving grooves are opened on the inner walls on both sides of the connecting rail;

[0031] A roller column is inserted into the connecting rail in an adapted manner. One side of the roller column protrudes from the connecting rail. A column shaft is horizontally arranged and fixedly connected through the roller column. The two ends of the column shaft are inserted into the moving grooves in an adapted manner;

[0032] A spring is arranged in the moving groove. One end of the spring is fixedly connected to the moving groove and the other end is fixedly connected to the column shaft.

[0033] The two ends of the first slide bar and the second slide bar are respectively inserted into the steering rail in an adapted manner, and the second stop disk and the third stop disk respectively abut against the outside of the steering rail.

[0034] The power mechanism includes a sliding trolley that fits against the side bar. A plug block adapted to be inserted into the slot is fixedly connected to one side of the sliding trolley, and the rotating rod is threadedly inserted into the plug block through a thread;

[0035] A rod seat is fixedly connected to one side of the sliding trolley. The rod seat is movably connected to a connecting rod through a rotating shaft, and the other end of the connecting rod is movably sleeved on the end of the second slide bar through a bearing;

[0036] The connecting rod is located outside the second gear disc and the third gear disc.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] (1) A connecting component for a stair tread, riser, and turning connecting platform. Through the connection of the connecting rod, the second slide rod of the tread mechanism is driven to slide along the turning rail to a suitable position, so that the riser mechanism and the tread mechanism can be spliced at different angles to adapt to different usage situations and improve the scope of application.

[0039] (2) A connecting component for a stair tread, riser, and turning connecting platform. Through the design of the adjusting component, the control components on both sides can be synchronously adjusted to drive the tread mechanism to adjust the angle uniformly, improving the convenience of adjustment.

[0040] (3) A connecting component for a stair tread, riser, and turning connecting platform. When the power mechanism slides along the turning mechanism to adjust the splicing angle of the tread mechanism and the riser mechanism, the connecting rod forms a side connection on the outside, so that the riser mechanism, the tread mechanism, and the connecting rod form a triangular stable form, enhancing the stability of the splicing of the riser mechanism and the tread mechanism.

[0041] (4) A connecting component for a stair tread, riser, and turning connecting platform. The second slide rod is limited at the corner of the turning rail by the limiting component to make it fit the turning rail, thereby reducing the instability of the second slide rod during sliding and improving the smoothness of the operation of the tread mechanism driven by the control component.

[0042] (5) A connecting component for a stair tread, riser, and turning connecting platform. The tread mechanism is spliced with the riser mechanism in an oblique form. At this time, the height interval between the tread mechanism and the riser mechanism is small, which is convenient for using the stair component to carry goods and improves the convenience of use.

[0043] (6) A connecting component for a stair tread, riser, and turning connecting platform. The personnel transporting goods can move through the tread side provided with a foot plate groove. The personnel's foothold can be placed on the foot plate. The deflection of the foot plate can make the personnel go up more safely, improving the safety of use.

[0044] (7) A connecting component for a stair tread, riser, and turning connecting platform. After the splicing angle of the riser mechanism and the tread mechanism is uniformly adjusted by the adjusting component, the tray component can be first pulled outwards. When the tray is blocked by the card seat of the lowest stair component, the lowest stair component can be continuously pulled outwards, thus forming a stepped shape for personnel to use. When space is needed, similarly, the stair components can be pushed into the housing in sequence for placement. Through the movement of the stair components, the occupied space can be changed arbitrarily, improving the flexibility of use. Brief Description of the Drawings

[0045] Figure 1 is the first structural schematic diagram of the present invention;

[0046] Figure 2 is the second structural schematic diagram of the present invention;

[0047] Figure 3 is the third structural schematic diagram of the present invention;

[0048] Figure 4 is the schematic diagram of the housing mechanism of the present invention;

[0049] Figure 5 of the present invention Figure 4 is the enlarged schematic diagram at position A;

[0050] Figure 6 is the schematic diagram of the pallet assembly of the present invention;

[0051] Figure 7 is the schematic diagram of the stair assembly of the present invention;

[0052] Figure 8 is the schematic diagram of the vertical plate mechanism of the present invention;

[0053] Figure 9 is the schematic diagram of the side bar assembly of the present invention;

[0054] Figure 10 is the schematic diagram of the steering mechanism of the present invention;

[0055] Figure 11 is the schematic diagram of the limit assembly of the present invention;

[0056] Figure 12 is the schematic diagram of the power mechanism of the present invention;

[0057] Figure 13 is the connection schematic diagram of the power mechanism of the present invention;

[0058] Figure 14 is the schematic diagram of the tread mechanism of the present invention;

[0059] Figure 15 is the second retaining disc schematic diagram of the present invention;

[0060] Figure 16 is the connection schematic diagram of the tread mechanism of the present invention.

[0061] In the figure: 1. Vertical plate mechanism; 101. Vertical plate; 102. Side strip; 103. Slot; 104. Side platform; 105. First rail groove; 106. Rotating rod; 107. Washer; 108. Thread; 109. Inner groove; 110. First push rod; 111. First stop disk; 2. Steering mechanism; 201. Steering rail; 202. Stand; 203. Connecting rail; 204. Shifting groove; 205. Roller; 206. Column shaft; 207. Spring; 208. Slide rail; 209. Clamping seat; 210. Second rail groove; 3. Step mechanism; 301. Step; 302. First slide rod; 303. Second stop disk; 304. Second slide rod; 305. Third stop disk; 306. Foot plate groove; 307. Latching groove; 308. Foot plate; 309. Spring shaft; 310. Anti-slip pad; 4. Power mechanism; 401. Sliding trolley; 402. Insert block; 403. Rod seat; 404. Connecting rod; 5. Housing mechanism; 501. Housing; 502. Cross beam; 503. Third rail groove; 504. Suspension rod; 505. Small hole; 506. Suspension platform; 507. Motor; 508. First pulley; 509. Second push rod; 510. Second pulley; 511. Belt; 512. Support plate; 513. Fourth rail groove; 514. Column. Detailed implementation mode

[0062] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0063] Embodiment: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 14 , a connecting component for a stair step, a vertical plate and a steering connecting platform, including a housing mechanism 5. The housing mechanism 5 includes a housing 501. A stair component is sequentially lapped on the rear wall surface of the housing 501. The stair component includes a vertical plate mechanism 1, a step mechanism 3 and a control component for connecting the vertical plate mechanism 1 and the step mechanism 3;

[0064] The vertical plate mechanism 1 includes a vertical plate 101, and symmetric side strip components are respectively fixedly connected to both sides of the vertical plate 101;

[0065] The vertical plate 101 of the topmost stair component is fixedly connected to the housing 501;

[0066] The stepping mechanism 3 includes a step 301. A first sliding rod 302 is fixedly connected transversely through one side of the step 301. Second retaining discs 303 are fixedly connected to both ends of the first sliding rod 302. A second sliding rod 304 is fixedly connected transversely through the other side of the step 301. Third retaining discs 305 flush with the second retaining discs 303 are fixedly sleeved on both ends of the second sliding rod 304;

[0067] The control component can enable the vertical plate mechanism 1 and the stepping mechanism 3 to be docked at different angles.

[0068] Please refer to Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 9 、 Figure 14 、 Figure 15 , the housing mechanism 5 further includes an adjustment component and a support plate component;

[0069] The adjustment component includes a cross beam 502 fixedly connected to the housing 501. Third rail grooves 503 are respectively opened at both ends of the upper surface of the cross beam 502. Suspension rods 504 are respectively fixedly connected to both ends of the lower surface of the cross beam 502. Small holes 505 are respectively penetrated through both ends of the cross beam 502. A suspension platform 506 aligned with the cross beam 502 is jointly penetrated by the two suspension rods 504. The suspension platform 506 is hung on the suspension rods 504. A motor 507 is fixedly connected to the middle of the lower surface of the suspension platform 506. The output end of the motor 507 penetrates through the suspension platform 506 and is fixedly connected to a first pulley 508. Cross-shaped second push rods 509 are respectively inserted at both ends of the suspension platform 506. The lower ends of the second push rods 509 are movably connected to the suspension platform 506 through bearings. The upper ends of the second push rods 509 are adaptively penetrated through the small holes 505. Second pulleys 510 flush with the first pulley 508 are fixedly sleeved on the outer sides of the lower ends of the second push rods 509. A belt 511 installed in the suspension platform 506 is jointly sleeved on the first pulley 508 and the second pulley 510;

[0070] The support plate component includes a support plate 512. Fourth rail grooves 513 are respectively opened at both ends of the upper surface of the support plate 512. Columns 514 are respectively fixedly connected to both ends of the lower surface of the support plate 512.

[0071] The side strip component includes a side strip 102 fixedly connected to the vertical plate 101. A slot 103 is opened on one side of the upper part of the side strip 102;

[0072] A side platform 104 is fixedly connected to one side of the upper end of the side strip 102. A first rail groove 105 is opened on the side platform 104;

[0073] A rotating rod 106 is vertically and movably inserted into the side strip 102. Washers 107 installed on the side strip 102 are fixedly sleeved on the ends of the rotating rod 106. The washers 107 can prevent the rotating rod 106 from rotating randomly when at rest;

[0074] A section of the rotating rod 106 in the slot 103 is provided with a thread 108;

[0075] An inner groove 109 is provided on the inner side of the lower part of the rotating rod 106;

[0076] A cross-shaped first push rod 110 is vertically movably inserted into the rotating rod 106, and a first retaining disk 111 adapted to slide in the inner groove 109 is fixedly sleeved on the lower part of the first push rod 110;

[0077] The first push rod 110 of the lowest stair assembly faces the second pulley 510.

[0078] On one side of the surface of the tread 301, foot plate grooves 306 are evenly arranged at equal intervals, and a latching groove 307 is provided on one side of the foot plate groove 306;

[0079] A foot plate 308 is fitted and embedded in the foot plate groove 306, and a spring shaft 309 is fixedly connected between the side of the foot plate 308 close to the latching groove 307 and the foot plate groove 306;

[0080] Anti-slip pads 310 are fixedly connected to the surface of the foot plate 308 at equal intervals;

[0081] The formation of the latching groove 307 enables the foot plate 308 to deflect at an angle with the spring shaft 309 as the axis.

[0082] Please refer to Figure 7 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 16 , the number of control components is two, and the two control components are respectively on both sides of the vertical plate mechanism 1 and are symmetrical;

[0083] Each control component includes a steering mechanism 2 and a power mechanism 4;

[0084] The steering mechanism 2 includes an L-shaped steering rail 201, a stand 202 is fixedly connected to the rear side of the steering rail 201, and the stand 202 is fixedly connected to the side bar 102;

[0085] A limiting component for assisting the sliding of the step mechanism 3 is embedded in the inner side of the fold angle of the steering rail 201;

[0086] A slide rail 208 adapted to be inserted into the side platform 104 is fixedly connected to the lower side of the steering rail 201, one end of the slide rail 208 is flush with the stand 202 and is fixedly connected to the lower side of the stand 202, and the other end of the slide rail 208 extends out of the steering rail 201;

[0087] The other end of the slide rail 208 is provided with a clamping seat 209 which is adaptively embedded on the steering rail 201 through screws. A second rail groove 210 for adaptively inserting the slide rail 208 is formed through the lower part of the clamping seat 209.

[0088] The slide rail 208 of the lowermost stair component is adaptively inserted into the third rail groove 503 and the fourth rail groove 513.

[0089] The limiting component includes a connecting rail 203 which is adaptively embedded on the steering rail 201. Annular moving grooves 204 are formed on the inner walls on both sides of the connecting rail 203.

[0090] A roller column 205 is adaptively inserted into the connecting rail 203. One side of the roller column 205 protrudes from the connecting rail 203. A column shaft 206 is horizontally arranged and fixedly connected through the roller column 205. The two ends of the column shaft 206 are adaptively inserted into the moving grooves 204.

[0091] A spring 207 is arranged in the moving groove 204. One end of the spring 207 is fixedly connected to the moving groove 204 and the other end is fixedly connected to the column shaft 206.

[0092] The two ends of the first slide bar 302 and the second slide bar 304 are respectively inserted into the steering rail 201 in a corresponding manner. The second stop disk 303 and the third stop disk 305 respectively abut against the outside of the steering rail 201.

[0093] Initially, the roller column 205 abuts the second slide bar 304 at the corner of the steering rail 201.

[0094] The power mechanism 4 includes a sliding trolley 401 which fits against the side strip 102. A plug block 402 for adaptively inserting into the slot 103 is fixedly connected to one side of the sliding trolley 401. The rotating rod 106 is threadedly inserted into the plug block 402 through the thread 108.

[0095] A rod seat 403 is fixedly connected to one side of the sliding trolley 401. The rod seat 403 is movably connected to a connecting rod 404 through a rotating shaft. The other end of the connecting rod 404 is movably sleeved on the end of the second slide bar 304 through a bearing.

[0096] The connecting rod 404 is located outside the second stop disk 303 and the third stop disk 305.

[0097] The working principle of the present invention is as follows:

[0098] The stair components are vertically arranged against the rear wall of the housing 501 in sequence. The side bar components of the stair components face each other in sequence. The side bar component of the lowermost stair component faces the housing mechanism 5. Push the suspension platform 506 upward along the suspension rod 504 to make it fit the cross beam 502. The second push rod 509 extends from the third rail groove 503 and inserts into the rotating rod 106 of the side bar component above it, and pushes upward the first push rod 110 inserted in the rotating rod 106. Furthermore, the first push rods 110 of the side bar components of the stair components are pushed upward in sequence and inserted into the rotating rods 106 above them. Start the motor 507 to rotate, and through the belt 511, make the second belt pulleys 510 on both sides rotate synchronously. Furthermore, drive the rotating rods 106 in the side bar components to rotate, so as to adjust the inserted block 402 screwed to the rotating rod 106, that is, the sliding trolley 401 slides along the slot 103 to a suitable position. Through the connection of the connecting rod 404, further drive the second sliding rod 304 of the tread mechanism 3 to slide along the steering rail 201 to a suitable position, so that the vertical plate mechanism 1 and the tread mechanism 3 are spliced at different angles to adapt to different usage situations and improve the scope of application.

[0099] Through the design of the adjustment component, it is possible to synchronously adjust the control components on both sides to uniformly drive the tread mechanism 3 to adjust the angle, improving the convenience of adjustment.

[0100] When the power mechanism 4 slides along the steering mechanism 2 to adjust the splicing angle of the tread mechanism 3 and the vertical plate mechanism 1, the connecting rod 404 forms a side connection on the outside, making the vertical plate mechanism 1, the tread mechanism 3 and the connecting rod 404 form a triangular stable shape, enhancing the stability of the splicing of the vertical plate mechanism 1 and the tread mechanism 3.

[0101] Through the design of the limit component, in the resting state, the second sliding rod 304 of the tread mechanism 3 is inserted into the steering rail 201 and abutted through the roller 205, so that the roller 205 is stably inserted at the corner of the steering rail 201. When the sliding trolley 401 slides downward along the slot 103, through the connection of the connecting rod 404, the second sliding rod 304 can be made to slide along the downward section of the steering rail 201. The limit component limits the second sliding rod 304 at the corner of the steering rail 201 to make it fit the steering rail 201, thereby reducing the instability of the sliding of the second sliding rod 304 and improving the smoothness of the operation of the tread mechanism 3 driven by the control component;

[0102] Through the setting of the foot plate 308 on the tread mechanism 3 that can deflect at an angle with the spring shaft 309 as the axis, through the adjustment of the control component, the tread mechanism 3 can be spliced with the vertical plate mechanism 1 in an oblique form. At this time, the height interval between the tread mechanism 3 and the vertical plate mechanism 1 is small, which is convenient for using the stair component to carry goods and improves the convenience of use;

[0103] Personnel transporting goods can move along the side of the step 301 with a footplate groove 306. The personnel's foothold can be placed on the footplate 308. The deflection of the footplate 308 can make it safer for personnel to go up and improve the safety of use.

[0104] The stair components arranged vertically are inserted and joined together through the first rail groove 105 and the slide rail 208 to form a unified whole. The vertical plate 101 of the uppermost stair component is fixedly connected to the housing 501. The lowermost stair component is lapped by the support plate component. After the splicing angle of the vertical plate mechanism 1 and the step mechanism 3 is adjusted uniformly by the adjusting component, the support plate component can be pulled outwards first. When the support plate 512 is blocked by the clamping seat 209 of the lowermost stair component, the lowermost stair component can be continuously pulled outwards, thus forming a stepped shape for personnel to use. When space is needed, similarly, the stair components can be pushed into the housing 501 in sequence for placement. By moving the stair components, the occupied space can be changed at will, improving the flexibility of use.

[0105] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection assembly for stair treads, risers and a turning connection platform, comprising a housing mechanism (5), the housing mechanism (5) comprising a housing (501), the rear wall surface of the housing (501) being overlapped with stair assemblies in sequence, characterized in that: The staircase assembly comprises a riser mechanism (1), a stepping mechanism (3), and a control assembly for connecting the riser mechanism (1) and the stepping mechanism (3); The upright plate mechanism (1) comprises an upright plate (101), and symmetrical side strip components are respectively fixedly connected to two sides of the upright plate (101); The vertical plate (101) of the uppermost staircase assembly is fixedly connected to the housing (501); The stepping mechanism (3) comprises a step (301), a first sliding rod (302) is transversely penetrated and fixedly connected to one side of the step (301), a second baffle plate (303) is fixedly connected to both ends of the first sliding rod (302), a second sliding rod (304) is transversely penetrated and fixedly connected to the other side of the step (301), and a third baffle plate (305) flush with the second baffle plate (303) is fixedly sleeved and connected to both ends of the second sliding rod (304); The housing mechanism (5) further comprises an adjustment component and a support plate component; The adjustment assembly comprises a crossbeam (502) fixedly connected to a housing (501), third rail grooves (503) are respectively provided at two ends of an upper surface of the crossbeam (502), suspension rods (504) are respectively fixedly connected to two ends of a lower surface of the crossbeam (502), small holes (505) are respectively provided through two ends of the crossbeam (502), a suspension platform (506) aligned with the crossbeam (502) is interspersed between the two suspension rods (504), the suspension platform (506) is hung on the suspension rods (504), a motor (507) is fixedly connected to the middle of the lower surface of the suspension platform (506), and the motor (507) is The output end passes through the hanging platform (506) and is fixedly connected to the first belt pulley (508); a cross-shaped second push rod (509) is respectively inserted at both ends of the hanging platform (506); the lower end of the second push rod (509) is movably connected to the hanging platform (506) through a bearing; the upper end of the second push rod (509) is adapted to be inserted into a small hole (505); the outer side of the lower end of the second push rod (509) is fixedly sleeved with a second belt pulley (510) flush with the first belt pulley (508); the first belt pulley (508) and the second belt pulley (510) are jointly sleeved with a belt (511) embedded in the hanging platform (506); The support plate assembly comprises a support plate (512), and fourth rail grooves (513) are respectively provided at two ends of the upper surface of the support plate (512), and columns (514) are respectively fixedly connected at two ends of the lower surface of the support plate (512).

2. A connection assembly for stair treads, risers and turning connection platforms according to claim 1, characterized in that: The side bar assembly comprises a side bar (102) fixedly connected to the vertical plate (101), and a slot (103) is provided on one side of the upper portion of the side bar (102); One side of the upper end of the side strip (102) is fixedly connected to a side platform (104), and a first rail groove (105) is provided on the side platform (104); A rotating rod (106) is vertically and movably inserted into the side strip (102), and the ends of the rotating rod (106) are respectively fixedly sleeved with washers (107) embedded in the side strip (102); A section of the rotating rod (106) located in the slot (103) is provided with a thread (108); An inner groove (109) is formed on the inner side of the lower portion of the rotating rod (106); A cross-shaped first push rod (110) is vertically movably inserted in the rotating rod (106), and a first stopper (111) adapted to the sliding inner groove (109) is fixedly sleeved on the lower part of the first push rod (110); The first push rod (110) of the staircase assembly at the lowest level faces the second pulley (510).

3. A connection assembly for stair treads, risers and turning connection platforms according to claim 1, characterized in that: One side of the surface of the step (301) is provided with footboard grooves (306) at even intervals, and one side of the footboard groove (306) is provided with a bridging groove (307); A foot plate (308) is adapted to be embedded in the foot plate groove (306), and a spring shaft (309) is fixedly connected between a side of the foot plate (308) close to the ledge (307) and the foot plate groove (306); The surface of the foot plate (308) is evenly and equidistantly fixedly connected with anti-slip pads (310).

4. A connection assembly for stair treads, risers and turning connection platforms according to claim 2, characterized in that: The number of the control components is two, and the two control components are respectively located on two sides of the vertical plate mechanism (1) and are symmetrical; Each of the control components comprises a steering mechanism (2) and a power mechanism (4); The steering mechanism (2) comprises an L-shaped steering rail (201), the rear side of the steering rail (201) is fixedly connected to a stand (202), and the stand (202) is fixedly connected to a side bar (102); A limiting component for assisting the sliding of the stepping mechanism (3) is embedded inside the corner of the turning rail (201); A slide rail (208) adapted to be plugged into the side platform (104) is fixedly connected to the lower side of the turning rail (201); one end of the slide rail (208) is flush with the stand (202) and fixed to the lower side of the stand (202); the other end of the slide rail (208) extends out of the turning rail (201); The other end of the slide rail (208) is provided with a holder (209) which is fitted and embedded on the steering rail (201) by means of screws, and a second rail groove (210) adapted to be plugged into the slide rail (208) is provided through the lower part of the holder (209); The slide rail (208) of the staircase assembly at the lowest level is adapted to be inserted into the third rail groove (503) and the fourth rail groove (513).

5. A connection assembly for stair treads, risers and turning connection platforms according to claim 4, characterized in that: The position limiting assembly comprises a connecting rail (203) adapted to be embedded in the turning rail (201), and inner walls on both sides of the connecting rail (203) are provided with annular shifting grooves (204); A roller column (205) is adapted to be inserted in the connecting rail (203), one side of the roller column (205) protrudes from the connecting rail (203), a column shaft (206) is horizontally placed in and penetrates and is fixedly connected to the roller column (205), and both ends of the column shaft (206) are adapted to be inserted into the displacement groove (204); A spring (207) is disposed in the displacement groove (204), one end of the spring (207) being fixedly connected to the displacement groove (204) and the other end of the spring (207) being fixedly connected to the column shaft (206).

6. A connection assembly for stair treads, risers and turning connection platforms according to claim 5, characterized in that: The two ends of the first sliding rod (302) and the second sliding rod (304) are respectively correspondingly plugged into the steering rail (201), and the second baffle plate (303) and the third baffle plate (305) are respectively correspondingly abutted against the outer side of the steering rail (201).

7. A connection assembly for stair treads, risers and turning connection platforms according to claim 6, characterized in that: The power mechanism (4) comprises a sliding trolley (401) fitted with a side strip (102), one side of the sliding trolley (401) is fixedly connected with an insert block (402) adapted to the insert slot (103), and the rotating rod (106) is threadedly inserted into the insert block (402) via a thread (108); One side of the sliding trolley (401) is fixedly connected to a rod seat (403), the rod seat (403) is movably connected to a connecting rod (404) via a rotating shaft, and the other end of the connecting rod (404) is movably sleeved on the end of the second sliding rod (304) via a bearing; The connecting rod (404) is located outside the second baffle plate (303) and the third baffle plate (305).

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