Welding-free stair

Abstract

The utility model discloses a welding-free stair in the field of stairs, which comprises supporting plates and a stepped plastic base plate arranged between the supporting plates, a plurality of square stamping clamping grooves are arranged on the supporting plates, a plurality of clamping bosses clamped with the square stamping clamping grooves are integrally formed at two end parts of the plastic base plate, and the clamping bosses are connected with the square stamping clamping grooves. A metal pedal is arranged at the bottom end of the plastic base plate, an end clamping bent head is integrally formed at one end of the metal pedal, a connecting bent plate is integrally formed at the other end of the metal pedal, and a cabinet door plate is connected to the lower portion of the connecting bent plate through a hinge. The staircase can be installed in a splicing mode, the space below the staircase can be fully utilized for storage by arranging the cabinet door plate and the storage box bottom plate, the staircase is extremely practical, the hand buckling groove is integrally formed in the cabinet door plate, handle-free design can be achieved, opening is convenient, the arc-shaped bending head is concaved inwards, and therefore the staircase is convenient to assemble and disassemble. The pedal space of the plastic base plate can be increased.

Description

Technical Field

[0001] This utility model relates to the field of stairs, specifically a weld-free staircase. Background Technology

[0002] When using bunk beds, a staircase is needed to get up and down from the upper bunk. This staircase is usually located between the headboards of the two beds. However, existing staircases are mostly fixed by welding, resulting in poor noise reduction and low space utilization at the base of the staircase. Therefore, those skilled in the art have provided a welding-free staircase to solve the problems mentioned in the background section. Summary of the Invention

[0003] The purpose of this invention is to provide a weld-free staircase to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A weld-free staircase includes a support plate and a stepped plastic pad placed between the support plate. The support plate has multiple square stamped slots. A metal tread is located at the bottom of the plastic pad. One end of the metal tread has an integrally formed end-clamping bend, and the other end has an integrally formed connecting bend. A cabinet door is connected to the connecting bend via a hinge. A storage box bottom plate is located at the end-clamping bend at the other end of the metal tread. One end of the storage box bottom plate has an integrally formed hook that engages with the end-clamping bend. Multiple engagement protrusions that engage with the square stamped slots are integrally formed at both ends of the metal tread.

[0006] As a further embodiment of this utility model: the plastic pad is manufactured by injection molding, one end of the plastic pad is integrally formed with an end protective hook, the other end of the plastic pad is integrally formed with an end protrusion, and the end protrusion is integrally formed with a snap-fit ​​groove.

[0007] As a further embodiment of this utility model: the bottom plate of the storage box has an L-shaped structure, and the other end of the bottom plate of the storage box is integrally formed with a snap-fit ​​hook that engages with the snap-fit ​​groove above the end protrusion.

[0008] As a further embodiment of this utility model: the bottom end of the plastic pad is integrally formed with multiple trapezoidal grooves that are larger at the top and smaller at the bottom, and the metal pedal is integrally formed with a trapezoidal protrusion that matches the trapezoidal grooves. The metal pedal and the plastic pad are connected by screws.

[0009] As a further embodiment of this utility model: an arc-shaped platform is integrally formed in the middle of the cabinet door panel, a handle groove is integrally formed on one side of the arc-shaped platform on the cabinet door panel, and an arc-shaped bend is integrally formed at the bottom of the cabinet door panel.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model allows for the installation of stairs through splicing. Furthermore, by setting cabinet doors and storage box bottoms, the space under the stairs can be fully utilized for storage, making it extremely practical. The integrated handle groove on the cabinet door allows for a handle-free design, making it easy to open. In addition, the inward-recessed curved bend increases the foot space of the plastic mat. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a right sectional view of the present invention;

[0014] Figure 3 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0015] Figure 4 This utility model Figure 2 A magnified view of a section at point B in the middle;

[0016] Figure 5 This is a schematic diagram of the structure of the plastic mat in this utility model;

[0017] Figure 6 This is a structural diagram showing the connection between the metal pedal and the support plate in this utility model.

[0018] In the diagram: 1. Support plate; 101. Square stamped slot; 2. Plastic pad; 201. End protective hook; 202. End protrusion; 203. Trapezoidal groove; 204. Snap-fit ​​groove; 3. Metal pedal; 301. End snap-fit ​​bend; 302. Connecting bend; 303. Trapezoidal protrusion; 304. Snap-fit ​​boss; 4. Storage box bottom plate; 401. Snap-fit ​​hook one; 402. Snap-fit ​​hook two; 5. Cabinet door panel; 501. Curved platform; 502. Handle groove; 503. Curved bend. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-6 In this embodiment of the utility model, a weld-free staircase includes a support plate 1 and a stepped plastic pad 2 placed between the support plate 1. The support plate 1 has multiple square stamped slots 101. A metal tread 3 is provided at the bottom of the plastic pad 2. One end of the metal tread 3 is integrally formed with an end snap-fit ​​bend 301, and the other end of the metal tread 3 is integrally formed with a connecting bend 302. A cabinet door panel 5 is connected to the bottom of the connecting bend 302 via a hinge. A storage box bottom plate 4 is provided at the end snap-fit ​​bend 301 at the other end of the metal tread 3. One end of the storage box bottom plate 4 is integrally formed with a snap-fit ​​hook 401 that snaps into the end snap-fit ​​bend 301. Both ends of the metal tread 3 are integrally formed with multiple snap-fit ​​bosses 304 that snap into the square stamped slots 101.

[0021] By adopting the above technical solution, the staircase can be installed by splicing. Moreover, by setting cabinet door panels 5 and storage box bottom plates 4, the space under the staircase can be fully utilized for storage, which is extremely practical.

[0022] The plastic mat 2 is made by injection molding. One end of the plastic mat 2 is integrally formed with an end protective hook 201, and the other end of the plastic mat 2 is integrally formed with an end protrusion 202. The end protrusion 202 is integrally formed with a snap-fit ​​groove 204. The storage box bottom plate 4 has an L-shaped structure, and the other end of the storage box bottom plate 4 is integrally formed with a snap-fit ​​hook 402 that engages with the snap-fit ​​groove 204 above the end protrusion 202, so as to realize the connection between the storage box bottom plate 4 and the plastic mat 2.

[0023] The plastic pad 2 has multiple trapezoidal grooves 203 integrally formed at the bottom, with the grooves being larger at the top and smaller at the bottom. The metal pedal 3 has a trapezoidal protrusion 303 integrally formed on its upper part that matches the trapezoidal grooves 203. The metal pedal 3 and the plastic pad 2 are connected by screws, and the tightening head of the screws is embedded in the plastic pad 2. The close fit between the metal pedal 3 and the plastic pad 2 can reduce noise. Moreover, by setting the trapezoidal protrusion 303 and the trapezoidal grooves 203 to cooperate, the strength of the plastic pad 2 can be effectively guaranteed.

[0024] Among them, the cabinet door panel 5 has an integrally formed arc-shaped platform 501 in the middle, and a handle groove 502 is integrally formed on one side of the arc-shaped platform 501 on the cabinet door panel 5. The bottom of the cabinet door panel 5 has an integrally formed arc-shaped bend head 503. By integrally forming the handle groove 502 on the cabinet door panel 5, a handle-free design can be achieved, which is convenient to open. Moreover, the arc-shaped bend head 503 is recessed inward, which can increase the foot space of the plastic pad 2.

[0025] It is worth noting that when used for bunk beds, the support plate 1 can be a headboard, or it can be fixed at the head of both beds to ensure that the distance between the two beds matches the width of the plastic pad 2. During installation, the plastic pad 2 and the metal foot pedal 3 are fixed together with screws to form an integrated structure. Then, the storage box bottom plate 4 is suspended below the metal foot pedal 3. Then, the cabinet door panel 5 is installed at the connecting bend plate 302 with hinges to realize the installation of the stair module. Then, the plastic pad 2 is hung in the square stamped slot 101 on the support plate 1 through the snap-fit ​​protrusion 304. During installation, make sure that one of the snap-fit ​​hooks 402 is snapped into the snap-fit ​​slot 204 to complete the installation step by step.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A weld-free staircase, comprising a support plate (1) and a stepped plastic pad (2) placed between the support plate (1), characterized in that: The support plate (1) has multiple square stamped slots (101). The bottom of the plastic pad (2) is provided with a metal pedal (3). One end of the metal pedal (3) is integrally formed with an end snap-fit ​​bend (301). The other end of the metal pedal (3) is integrally formed with a connecting bend (302). The cabinet door panel (5) is connected to the bottom of the connecting bend (302) by a hinge. The storage box bottom plate (4) is provided at the end snap-fit ​​bend (301) at the other end of the metal pedal (3). One end of the storage box bottom plate (4) is integrally formed with a snap-fit ​​hook (401) that snaps into the end snap-fit ​​bend (301). Both ends of the metal pedal (3) are integrally formed with multiple snap-fit ​​bosses (304) that snap into the square stamped slots (101).

2. The weld-free staircase according to claim 1, characterized in that: The plastic pad (2) is made by injection molding. One end of the plastic pad (2) is integrally formed with an end protection hook (201), and the other end of the plastic pad (2) is integrally formed with an end protrusion (202). The end protrusion (202) is integrally formed with a snap-fit ​​groove (204) above it.

3. The weld-free staircase according to claim 2, characterized in that: The storage box bottom plate (4) has an L-shaped structure, and the other end of the storage box bottom plate (4) is integrally formed with a snap hook (402) that snaps into the snap groove (204) above the end protrusion (202).

4. A weld-free staircase according to claim 3, characterized in that: The bottom of the plastic pad (2) is integrally formed with multiple trapezoidal grooves (203) that are larger at the top and smaller at the bottom. The metal pedal (3) is integrally formed with a trapezoidal protrusion (303) that matches the trapezoidal grooves (203). The metal pedal (3) is connected to the plastic pad (2) by screws.

5. A weld-free staircase according to claim 4, characterized in that: The cabinet door panel (5) has an integrally formed arc-shaped platform (501) in the middle, a handle groove (502) is integrally formed on one side of the arc-shaped platform (501) on the cabinet door panel (5), and an arc-shaped bend head (503) is integrally formed at the bottom of the cabinet door panel (5).

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