Folding stair

By designing adjustment components and electric push rods in the folding stairs, the existing folding stairs have solved the problem of large space occupied by the existing folding stairs and inconvenient use and adjustment at high places, achieving compact storage and height adjustment, improving the use effect and stability.

CN222847702UActive Publication Date: 2025-05-09BEIJING JIEYA CONSTR ENG CO LTD
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Patent Information

Application Number
CN202420576858.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-25
Publication Date
2025-05-09
Estimated Expiration
2034-03-25

AI Technical Summary

Technical Problem

The existing folding stairs are large in size when used, occupy more space, and are inconvenient to adjust when used at high places.

Method used

A folding staircase including the first and second support rods, a transverse plate, a first adjustment assembly and a second adjustment assembly are designed. By setting up components such as adjustment grooves, threaded rods, gears and electric push rods, folding, adjusting and moving the stairs.

Benefits of technology

It realizes compact storage and height adjustment of the stairs, avoids taking up too much space, and can move and adjust the tilt angle of the stairs when used at high places, improving the use effect and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a folding stair which comprises two first supporting rods and two second supporting rods, a plurality of transverse plates are connected between the two first supporting rods and the two second supporting rods, and first adjusting assemblies are arranged between the transverse plates. One end of the first adjusting assembly extends to the outer sides of the first supporting rod and the second supporting rod from the inner sides of the first supporting rod and the second supporting rod, and the second adjusting assembly is arranged between the first supporting rod and the second supporting rod, so that the staircase can be folded and stored, and the storage height or the use height can be adjusted; according to the staircase convenient to use, the use effect and the storage effect can be better guaranteed, the situation that a large place is occupied for placement is avoided, meanwhile, when a user is located at a high position, the position of the staircase can be moved, the inclination angle of the staircase can be adjusted, and therefore the use effect of the staircase can be better guaranteed; and the stability of the stairs can be ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of stairs, in particular to a folding staircase. Background Art

[0002] Folding stairs, as the name suggests, are foldable stairs. Its biggest advantage is that it saves space. When we don't need to use it, we can fold it up and stick it close to the wall, taking up almost no space. This type of staircase is particularly suitable for small houses or places with limited space.

[0003] Most of the existing stairs are relatively large in size when in use, so that they occupy a relatively large space for placement, and during use, it is inconvenient to adjust the ladder because it is at a high place.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] The purpose of the utility model is to provide a foldable staircase to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A folding staircase includes two first support rods and two second support rods, a plurality of cross plates are connected between the two first support rods and the two second support rods, a first adjustment component is arranged between the cross plates, one end of the first adjustment component extends from the inner side of the first support rod and the second support rod to the outer side of the first support rod and the second support rod, and a second adjustment component is arranged between the first support rod and the second support rod.

[0008] Furthermore, the first adjustment component includes an adjustment slot, which is opened on one side of the first support rod and the second support rod. A first rotating shaft is arranged on both sides of the cross plate. Both ends of the first rotating shaft are movably connected to the inner wall of the adjustment slot. The cross plate is arranged in two sections, and hinges are installed between the cross plates.

[0009] Furthermore, the first adjustment component also includes a first threaded rod, which is arranged on one side of the first support rod and the second support rod through a bearing seat, and the first threaded rod is connected to an adjustment plate through threads.

[0010] Furthermore, an adjustment plate is arranged on one side of one of the horizontal plates, a first adjustment gear is arranged at one end of the first threaded rod, the first adjustment gear is meshed and connected with a second adjustment gear on which a connecting rod is fixedly arranged, and the connecting rod is arranged on one of the first support rods and the second support rod through a mounting plate, and a first self-locking structure is arranged on the connecting rod.

[0011] Furthermore, a third rotating shaft is movably connected to one side of the first support rod, a protective shell is provided at one end of the third rotating shaft, a motor is provided inside the protective shell, two output shafts of the motor are provided with moving rods through couplings, a moving wheel is provided at one end of the moving rod, an electric push rod is symmetrically provided on one side of the protective shell, and a stabilizing block is provided at the moving end of the electric push rod.

[0012] Furthermore, the second adjustment component includes a lifting slot, which is opened on one side of the first support rod, and a second threaded rod is arranged in the lifting slot. One end of the second threaded rod is movably connected in the lifting slot, and the other end of the second threaded rod extends from the inside of the lifting slot to the outside of the first support rod. A driven gear is arranged on one end of the second threaded rod located outside the first support rod, and an adjustment seat is threadedly connected to the second threaded rod, and the adjustment seat is arranged on one side of the second support rod.

[0013] Furthermore, a driving gear is meshed with the driven gear, an adjusting rod is fixedly mounted on the driving gear, one end of the adjusting rod is movably connected to the second support rod, one side of the second support rod is movably connected to the second rotating shaft, a second self-locking structure is provided on the second rotating shaft, an adjusting cylinder is fixedly provided at one end of the second rotating shaft, a suction cup is provided at one end of the adjusting cylinder, an adjusting block is connected inside the adjusting cylinder, one end of the adjusting block is movably connected to the rotating rod, and the adjusting cylinder is threadedly connected to the rotating rod.

[0014] Compared with the prior art, the utility model has the following beneficial effects: by setting the first processing component and the second adjusting component to cooperate with each other, the stairwell can be folded and stored, and the storage height or the use height can also be adjusted, so as to better ensure the use effect and storage effect, thereby avoiding occupying a large place for placement, and at the same time, when the user is at a high place, the position of the stairs can be moved and the inclination angle of the stairs can be adjusted, so as to better ensure the use effect of the stairs and also ensure the stability of the stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of a folding staircase structure according to an embodiment of the utility model Figure 1 ;

[0017] Figure 2 A schematic diagram of a folding staircase structure according to an embodiment of the utility model Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the first adjustment component structure of a folding staircase according to an embodiment of the utility model. Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the first adjustment component structure of a folding staircase according to an embodiment of the utility model. Figure 2 ;

[0020] Figure 5 This is a schematic diagram of the first adjustment component structure of a folding staircase according to an embodiment of the utility model. Figure 3 ;

[0021] Figure 6 This is a schematic diagram of the first adjustment component structure of a folding staircase according to an embodiment of the utility model. Figure 4 ;

[0022] Figure 7 This is a schematic diagram of the second adjustment component structure of a folding staircase according to an embodiment of the utility model. Figure 1 ;

[0023] Figure 8 This is a schematic diagram of the second adjustment component structure of a folding staircase according to an embodiment of the utility model. Figure 2 ;

[0024] Fig. 9 This is a schematic diagram of the second adjustment component structure of a folding staircase according to an embodiment of the utility model. Figure 3 .

[0025] Reference numerals:

[0026] 1. First support rod; 2. Second support rod; 3. Horizontal plate; 4. First adjustment component; 401. Adjustment slot; 402. Protective shell; 403. First rotating shaft; 404. Hinge; 405. First threaded rod; 406. Adjustment plate; 407. First adjustment gear; 408. Second adjustment gear; 409. Connecting rod; 410. First self-locking structure; 411. Third rotating shaft; 412. Motor; 413. Moving wheel; 414. Electric push rod; 415. Stabilizing block; 5. Second adjustment component; 501. Lifting slot; 502. Second threaded rod; 503. Driven gear; 504. Driving gear; 505. Adjustment rod; 506. Second rotating shaft; 507. Second self-locking structure; 508. Adjustment cylinder; 509. Suction cup; 510. Adjustment block; 511. Rotating rod; 512. Adjustment seat; 6. Moving rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 - Fig. 9 As shown, a folding staircase according to an embodiment of the utility model includes two first support rods 1 and two second support rods 2, which are used to place cross plates 3. Several cross plates 3 are connected between the two first support rods 1 and the two second support rods 2. A first adjusting component 4 is arranged between the cross plates 3 to ensure the folding effect of the stairs. One end of the first adjusting component 4 extends from the inner side of the first support rod 1 and the second support rod 2 to the outer side of the first support rod 1 and the second support rod 2. A second adjusting component 5 is arranged between the first support rod 1 and the second support rod 2 to ensure the adjustment effect of the storage height.

[0029] like Figure 1 - Fig. 9 As shown, the first adjustment component 4 includes an adjustment slot 401, which is opened on one side of the first support rod 1 and the second support rod 2, and first rotating shafts 403 are arranged on both sides of the cross plate 3, and both ends of the first rotating shaft 403 are movably connected to the inner wall of the adjustment slot 401, and the cross plate 3 is arranged in two sections, and a hinge 404 is installed between the cross plates 3;

[0030] The first adjustment assembly 4 also includes a first threaded rod 405, which is arranged on one side of the first support rod 1 and the second support rod 2 through a bearing seat, and an adjustment plate 406 is threadedly connected to the first threaded rod 405, and the adjustment plate 406 is arranged on one side of one of the cross plates 3, and a first adjustment gear 407 is arranged at one end of the first threaded rod 405, and a second adjustment gear 408 is meshedly connected to the first adjustment gear 407, and a connecting rod 409 is fixedly arranged on the second adjustment gear 408, and an adjustment handle is arranged at one end of the connecting rod 409, and the connecting rod 409 is arranged on one of the cross plates 3 through a mounting plate. A first self-locking structure 410 is arranged on the first support rod 1 and the second support rod 2, and a third rotating shaft 411 is movably connected to one side of the first support rod 1, and a protective shell 402 is arranged at one end of the third rotating shaft 411, and a motor 412 is arranged inside the protective shell 402. The motor 412 is arranged as a dual-axis stepping motor, and the two output shafts of the motor 412 are provided with a moving rod 6 through a coupling, and a moving wheel 413 is arranged at one end of the moving rod 6, and an electric push rod 414 is symmetrically arranged on one side of the protective shell 402, and a stabilizing block 415 with a truncated cone structure is arranged at the moving end of the electric push rod 414.

[0031] like Figure 1 - Fig. 9 As shown, the second adjustment component 5 includes a lifting slot 501, which is opened on one side of the first support rod 1, and a second threaded rod 502 is arranged in the lifting slot 501. One end of the second threaded rod 502 is movably connected in the lifting slot 501, and the other end of the second threaded rod 502 extends from the inside of the lifting slot 501 to the outside of the first support rod 1. A driven gear 503 is arranged at one end of the second threaded rod 502 located outside the first support rod 1, and an adjustment seat 512 is threadedly connected to the second threaded rod 502. The adjustment seat 512 is arranged on one side of the second support rod 2, and the driven gear 503 is meshed with the driven gear 503. A driving gear 504 is connected, an adjusting rod 505 is fixedly installed on the driving gear 504, one end of the adjusting rod 505 is movably connected to the second support rod 2, one side of the second support rod 2 is movably connected to a second rotating shaft 506, a second self-locking structure 507 is provided on the second rotating shaft 506, an adjusting cylinder 508 is fixedly provided at one end of the second rotating shaft 506, a suction cup 509 is provided at one end of the adjusting cylinder 508, an adjusting block 510 made of rubber material is connected inside the adjusting cylinder 508, one end of the adjusting block 510 is movably connected to a rotating rod 511, and the adjusting cylinder 508 is threadedly connected to the rotating rod 511;

[0032] The first self-locking structure 410 and the second self-locking structure 507 are both composed of a ratchet and a pawl.

[0033] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0034] Working principle: In summary, with the help of the above technical solution of the utility model, when the folded and stored stairs need to be unfolded, the connecting rod 409 is rotated by rotating the adjusting handle, and then the connecting rod 409 drives the second adjusting gear 408 to rotate, and the second adjusting gear 408 and the first adjusting gear 407 are meshed with each other to drive the first threaded rod 405 to rotate, and then the adjusting plate 406 drives one section of the horizontal plate 3 to move, and then the horizontal plate 3 is unfolded by cooperating with the hinge 404, the adjusting groove 401 and the first rotating shaft 403. When the height of the stairs needs to be adjusted, the adjusting rod 505 is rotated and the adjusting rod 505 drives the driving gear 504 to rotate, and then the driving gear 504 drives the second threaded rod 502 to rotate by meshing with the driven gear 503, and then the adjusting seat 512 on the second threaded rod 502 moves, and at the same time drives the second support rod 2 to adjust its height in the lifting groove 501;

[0035] When it is necessary to fix the second support rod 2 located at a high place, one end of the suction cup 509 is located on the wall, and then the rotating rod 511 is rotated to drive the adjustment block 510 to move to one side in the adjustment cylinder 508, and then a moving suction force is generated, so that the suction cup 509 is fixed to the wall, and different angles can be adjusted by the cooperation between the second rotating shaft 506 and the second self-locking structure 507. When it is necessary to move and adjust the stairs, the motor 412 is started through an external controller, and then the output shaft of the motor 412 drives the moving rod 6 to rotate, and then drives the moving wheel 413 to rotate, so as to realize the movement and adjustment. After the movement is completed, the electric push rod 414 is started through the external controller, and then the moving end of the electric push rod 414 drives the stabilizing block 415 to move and adjust, so that the stairs can be stabilized.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A folding staircase, characterized in that: The invention comprises two first support rods (1) and two second support rods (2); a plurality of transverse plates (3) are connected between the two first support rods (1) and the two second support rods (2); a first adjustment component (4) is arranged between the transverse plates (3); one end of the first adjustment component (4) extends from the inner side of the first support rod (1) and the second support rod (2) to the outer side of the first support rod (1) and the second support rod (2); and a second adjustment component (5) is arranged between the first support rod (1) and the second support rod (2).

2. A folding staircase according to claim 1, characterized in that: The first adjustment component (4) comprises an adjustment slot (401), wherein the adjustment slot (401) is provided on one side of the first support rod (1) and the second support rod (2), first rotating shafts (403) are provided on both sides of the transverse plate (3), and both ends of the first rotating shaft (403) are movably connected to the inner wall of the adjustment slot (401), and the transverse plate (3) is provided in two sections, and a hinge (404) is installed between the transverse plates (3).

3. A folding staircase according to claim 2, characterized in that: The first adjustment component (4) further comprises a first threaded rod (405), wherein the first threaded rod (405) is arranged on one side of the first support rod (1) and the second support rod (2) via a bearing seat, and an adjustment plate (406) is threadedly connected to the first threaded rod (405).

4. A folding staircase according to claim 3, characterized in that: The adjustment plate (406) is arranged on one side of one of the transverse plates (3); a first adjustment gear (407) is arranged at one end of the first threaded rod (405); and a second adjustment gear (408) is meshingly connected to the first adjustment gear (407).

5. A folding staircase according to claim 4, characterized in that: A connecting rod (409) is fixedly arranged on the second adjusting gear (408), and the connecting rod (409) is arranged on one of the first support rod (1) and the second support rod (2) through a mounting plate, and a first self-locking structure (410) is arranged on the connecting rod (409).

6. A folding staircase according to claim 5, characterized in that: One side of the first support rod (1) is movably connected to a third rotating shaft (411), one end of the third rotating shaft (411) is provided with a protective shell (402), a motor (412) is provided inside the protective shell (402), two output shafts of the motor (412) are provided with a moving rod (6) through a coupling, one end of the moving rod (6) is provided with a moving wheel (413), one side of the protective shell (402) is symmetrically provided with an electric push rod (414), and the moving end of the electric push rod (414) is provided with a stabilizing block (415).

7. A folding staircase according to claim 6, characterized in that: The second adjustment component (5) comprises a lifting slot (501), wherein the lifting slot (501) is provided at one side of the first support rod (1), a second threaded rod (502) is arranged in the lifting slot (501), one end of the second threaded rod (502) is movably connected in the lifting slot (501), the other end of the second threaded rod (502) extends from the inside of the lifting slot (501) to the outside of the first support rod (1), a driven gear (503) is arranged at one end of the second threaded rod (502) located outside the first support rod (1), an adjustment seat (512) is threadedly connected to the second threaded rod (502), and the adjustment seat (512) is arranged at one side of the second support rod (2).

8. A folding staircase according to claim 7, characterized in that: The driven gear (503) is meshedly connected with a driving gear (504), an adjusting rod (505) is fixedly mounted on the driving gear (504), one end of the adjusting rod (505) is movably connected to the second support rod (2), one side of the second support rod (2) is movably connected to a second rotating shaft (506), a second self-locking structure (507) is provided on the second rotating shaft (506), an adjusting cylinder (508) is fixedly provided at one end of the second rotating shaft (506), a suction cup (509) is provided at one end of the adjusting cylinder (508), an adjusting block (510) is connected inside the adjusting cylinder (508), one end of the adjusting block (510) is movably connected to a rotating rod (511), and the adjusting cylinder (508) is threadedly connected to the rotating rod (511).