Multifunctional step ladder

Abstract

The multifunctional step ladder comprises a step ladder main frame, two stages of step plates, a storage cabinet, a lifting rod, a lifting platform and rollers, the step ladder main frame is composed of cross beams and stand columns. The storage cabinet takes a step ladder main frame as a frame, and a bottom plate, a vertical side plate, a storage cabinet door and two-stage step plates of the storage cabinet are connected through the step ladder main frame to form the storage cabinet; the lifting rod is used for adjusting the height of the lifting platform; the lifting rod fixing pin is welded on the step ladder main frame and can move back and forth; the liftable platform is welded with the lifting rod, the lifting rod is embedded into the step ladder main frame, the height of the lifting platform is adjusted by moving the lifting rod up and down, and when the height meets the requirement, the lifting rod fixing pin is inserted into the positioning hole of the lifting rod to fix the lifting platform; and rollers are mounted at four bottom corners of the step ladder main frame. According to the step ladder, the functions of moving, lifting and storing of the step ladder can be integrated.

Description

Technical Field

[0001] This utility model relates to a multifunctional step ladder, particularly a workshop production auxiliary step ladder, and belongs to the technical field of step ladders. Background Technology

[0002] In production, staircases are required for working at heights and entering product interiors to assist personnel in accessing the product or to support large lighting tools. The staircases used in production workshops are made of steel; although simple in structure, they are heavy, difficult to move, and have no height adjustment, only meeting the needs of specific situations requiring height access. In actual production, the location of staircases frequently changes, requiring frequent relocation. Furthermore, many tools need to be prepared before work begins, and these tools must be carried to the work area one by one. This not only results in lengthy preparation time and high manpower consumption but also poses a risk of product damage during transport. The required height of the staircases varies depending on the situation, severely limiting the application of fixed-height staircases.

[0003] Therefore, to facilitate various types of work, stair treads must meet the needs of carrying items, adjusting height, and storing tools to suit different work environments. Even though some stair treads are now equipped with casters to meet mobility requirements, their functionality is still too limited to meet the diverse production needs in a production workshop. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a multifunctional step ladder that meets the needs of movement, load-bearing, height adjustment and storage, so as to solve the problems of existing step ladders being difficult to move, having limited functions and being limited in use.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A multifunctional step ladder includes a main frame, two steps, a storage cabinet, a lifting rod, a lifting platform, and rollers.

[0007] The main frame of the staircase consists of crossbeams and columns; the storage cabinet is formed by the main frame of the staircase, which connects its own base plate, side panels, cabinet door and two steps.

[0008] The lifting rod is used to adjust the height of the lifting platform;

[0009] The lifting rod fixing pin is welded to the main frame of the staircase, and the lifting rod fixing pin can move back and forth.

[0010] The lifting platform is welded with the lifting rod, the lifting rod is embedded into the main frame of the step ladder, the height of the lifting platform is adjusted by moving the lifting rod up and down, and when the height reaches the requirement, the fixing pin of the lifting rod is inserted into the positioning hole of the lifting rod to fix the lifting platform.

[0011] The four bottom corners of the main frame of the step ladder are provided with rollers.

[0012] In an embodiment of the utility model, the two-stage step board comprises a first-stage step board, a second-stage step board, a non-slip pad and a bumper strip; the non-slip pad is in shape conformity with the horizontal plane of the two-stage step board, and is laid on the two-stage step board; and the bumper strip is installed on the front side edges and the two side edges of the two-stage step board.

[0013] In an embodiment of the utility model, the storage cabinet door is a single door, is connected to the left rear side vertical column of the main frame of the step ladder through a hinge, and is provided with a recessed handle and a door lock.

[0014] In an embodiment of the utility model, the bottom plate is used as a bottom support of the storage cabinet; the vertical side plate and the storage cabinet door are respectively installed on the four sides of the main frame of the step ladder, are combined and closed with the bottom plate and the two-stage step board through the main frame of the step ladder, and form a storage space below the two-stage step board, i.e. the storage cabinet.

[0015] In an embodiment of the utility model, a plurality of horizontal positioning holes are uniformly distributed on the lifting rod in the longitudinal direction, and are used in cooperation with the fixing pin of the lifting rod to limit the position.

[0016] In an embodiment of the utility model, the periphery of the lifting platform is provided with a protective baffle to prevent tools from falling.

[0017] In an embodiment of the utility model, the rollers at the two bottom corners at the rear of the step ladder are directional wheels, and the rollers at the two bottom corners at the front are universal wheels.

[0018] In an embodiment of the utility model, the universal wheel is provided with a locking device, and the locking device is used to lock the universal wheel, thereby fixing the step ladder.

[0019] In an embodiment of the utility model, the locking device is a buckle type locking device.

[0020] In an embodiment of the utility model, the multifunctional step ladder is made of steel and is subjected to electrostatic plastic spraying treatment on the surface.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] This utility model integrates the functions of movement, lifting, and storage of a step ladder. In practical applications, it greatly facilitates workshop production. The storage and movement functions reduce the number of times auxiliary tools need to be moved during operations, while avoiding quality risks associated with moving them. The height adjustment function can meet the height requirements of various occasions, and the baffle design prevents tools from falling, ensuring personnel safety and product quality. This multi-functional step ladder improves work efficiency, reduces labor intensity, minimizes preparation work, and improves the cleanliness of the work site, meeting the requirements of safe and efficient production. This step ladder has a large load capacity, is easy to move, has a large storage space, and is simple to use. Attached Figure Description

[0023] Figure 1 This is the main view of a multi-functional staircase.

[0024] Figure 2 Left view of a multi-functional staircase;

[0025] Figure 3 This is a schematic diagram of the components of a multi-functional staircase.

[0026] Attached reference numerals: Horizontal beam-11, Column-12, First-level step-21, Second-level step-22, Locker-3, Lifting rod-4, Lifting platform-5, Lifting rod fixing pin-6, Roller-7. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] A multifunctional staircase includes a main frame, two steps, a storage cabinet 3, a lifting rod 4, a lifting platform 5, and casters 7. Figure 3 As shown.

[0029] The multi-functional staircase is made of steel with electrostatic powder coating. The main frame of the staircase consists of crossbeams 11 and columns 12. The main frame is 600mm long from side to side and 1000mm wide from front to back. Figure 1 As shown.

[0030] The two-stage stair treads consist of a primary stair tread 21, a secondary stair tread 22, an anti-slip mat, and anti-collision strips. The height difference between the primary stair tread 21 and the secondary stair tread 22 is 375mm. The primary stair tread 21 is 600mm long and 300mm wide; the secondary stair tread 22 is 600mm long and 700mm wide. The anti-slip mat conforms to the horizontal shape of the two-stage stair treads and is laid on them. The anti-collision strips are installed on the front and side edges of the two-stage stair treads. Figure 2 As shown.

[0031] The storage cabinet 3 is composed of the bottom plate, the vertical side plate, the storage cabinet door and the two-step plate by connecting the storage cabinet door to the left rear side column 12 of the staircase main frame as the frame.

[0032] The storage cabinet door is a single door connected to the left rear side column 12 of the staircase main frame by a hinge. The storage cabinet door is provided with a recessed handle and a door lock. The storage cabinet lock is a common lock core which needs to be opened or locked by a key.

[0033] The bottom plate is used as the bottom support of the storage cabinet 3 and can bear 100 kg. The vertical side plate and the storage cabinet door are respectively installed on the four sides of the staircase main frame, combined and closed with the bottom plate and the two-step plate through the staircase main frame, forming a storage space below the two-step plate, i.e. the storage cabinet 3.

[0034] The lifting rod 4 is 850 mm long and has 7 rows of horizontal positioning holes uniformly distributed longitudinally, which are used to adjust the height of the lifting platform 5. Each row of positioning holes has a longitudinal spacing of 100 mm, and the adjustable height is 600 mm.

[0035] The lifting rod fixing pin 6 is welded on the two side edges of the top beam 11 of the above-mentioned staircase main frame. The fixing pin can move forward and backward, and the forward and backward positions are designed with limiting plates.

[0036] The lifting platform 5 is 600 mm long, 390 mm wide and 40 mm thick. A 30 mm high protective baffle is designed around it to prevent tools from falling.

[0037] The lifting platform 5 is welded with the lifting rod 4, the lifting rod 4 is embedded in the staircase main frame, the height of the lifting platform 5 is adjusted by moving the lifting rod 4 up and down, and when the height reaches the required height, the lifting rod fixing pin 6 is inserted into the positioning hole of the lifting rod 4 to fix the lifting platform 5.

[0038] The four bottom corners of the staircase main frame are respectively installed with four polyurethane rollers 7 with a diameter of 75 mm through bolts to facilitate the movement of the staircase. The rollers 7 at the two bottom corners at the rear of the staircase are directional wheels, and the rollers 7 at the two bottom corners at the front are universal wheels. The universal wheels are used to change direction when moving the staircase, facilitating the omnidirectional movement of the staircase.

[0039] The universal wheel is provided with a locking device for locking the universal wheel to fix the staircase. The locking device is a buckle type lock, which is composed of a foot pedal, a connecting part and a buckle part. The operator operates the foot pedal to lock or unlock, the connecting part drives the buckle part to move, and the buckle part is pressed or released to achieve the purpose of locking or unlocking.

[0040] A multifunctional step ladder, which realizes the movement of the step ladder through the bottom rollers 7, the height adjustment of the step ladder through the lifting platform 5, and the storage function through the installation of the load-bearing bottom plate and the closed storage cabinet 3 formed around the main frame of the step ladder. Compared with the traditional step ladder, the preparation and arrangement time is shortened by 70%, and the manpower is saved by 50%. The use process of the multifunctional step ladder is as follows:

[0041] Step 1, move the step ladder to the working position.

[0042] First, unlock the two universal wheels in front of the step ladder, lift the foot pedal of the universal wheel locking device upward, connect the buckle component with the universal wheel, unlock the universal wheel, and restore the free rotation, and then push the step ladder from the back to the working position.

[0043] Step 2, lock the step ladder.

[0044] After the step ladder reaches the designated position, step on the foot pedal on the universal wheel locking device, press the buckle component tightly against the universal wheel, and generate friction with the universal wheel to prevent the rotation of the wheel, thereby realizing locking and fixing the step ladder.

[0045] Step 3, adjust the height of the lifting platform 5.

[0046] Adjust the lifting platform 5 up and down to the required height, align the positioning hole closest to the fixed pin horizontal plane with the lifting rod fixed pin 6, move the lifting rod fixed pin 6 to insert it into the positioning hole of the lifting rod 4, and fix the lifting platform 5.

[0047] Step 4, use the step ladder.

[0048] The step ladder can be used for climbing or carrying objects. When climbing, personnel step on the two-step ladder to climb; when entering the product for work, large lighting tools need to be placed in the step ladder, at which time the storage cabinet door is opened with a key, and the required tools are placed on the lifting platform 5 to start work.

[0049] The contents not described in detail in the utility model specification are the known technology of those skilled in the art.

[0050] Although the utility model has been disclosed as above with a preferred embodiment, it is not intended to limit the utility model, and any person skilled in the art can make possible changes and modifications to the utility model technical scheme by using the disclosed methods and technical contents without departing from the spirit and scope of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, which does not depart from the technical scheme of the utility model, belongs to the protection scope of the utility model technical scheme.

Claims

1. A multifunctional step ladder, characterized in that, It includes the main frame of the staircase, two steps, a locker (3), a lifting rod (4), a lifting platform (5), and rollers (7); The main frame of the staircase consists of a crossbeam (11) and a column (12); the storage cabinet (3) is framed by the main frame of the staircase, and its base plate, side panels, cabinet door and two steps are connected by the main frame of the staircase to form the storage cabinet (3); The lifting rod (4) is used to adjust the height of the lifting platform (5); The lifting rod fixing pin (6) is welded to the main frame of the step ladder, and the lifting rod fixing pin (6) can move back and forth; The lifting platform (5) is welded to the lifting rod (4). The lifting rod (4) is embedded in the main frame of the step ladder. The height of the lifting platform (5) is adjusted by moving the lifting rod (4) up and down. When the height reaches the required level, the lifting rod fixing pin (6) is inserted into the positioning hole of the lifting rod (4) to fix the lifting platform (5). Rollers (7) are installed at the four bottom corners of the main frame of the staircase.

2. The multifunctional step ladder according to claim 1, characterized in that, The two-stage step tread includes a first-stage step tread (21), a second-stage step tread (22), an anti-slip mat, and anti-collision strips; the anti-slip mat is shaped to match the horizontal plane of the two-stage step tread and is laid on the two-stage step tread, and the anti-collision strips are installed on the front edge and the side edges of the two-stage step tread.

3. The multifunctional step ladder according to claim 1, characterized in that, The locker door is a single door, which is connected to the left rear column (12) of the main frame of the staircase by a hinge. The locker door is equipped with a recessed door handle and a door lock.

4. The multifunctional step ladder according to claim 1, characterized in that, The base plate is used as the bottom support of the storage cabinet (3); the side panels and the storage cabinet door are installed on the four sides of the main frame of the staircase, and are combined and enclosed with the base plate and the two steps through the main frame of the staircase, forming a storage space under the two steps, namely the storage cabinet (3).

5. The multifunctional step ladder according to claim 1, characterized in that, Multiple rows of horizontal positioning holes are evenly distributed longitudinally on the lifting rod (4) for use in conjunction with the lifting rod fixing pin (6) for limiting movement.

6. The multifunctional step ladder according to claim 1, characterized in that, The lifting platform (5) is equipped with protective baffles around its perimeter to prevent tools from falling.

7. The multifunctional step ladder according to claim 1, characterized in that, The rollers (7) at the two bottom corners at the back of the step are directional rollers, and the rollers (7) at the two bottom corners at the front are omnidirectional rollers.

8. The multifunctional step ladder according to claim 1, characterized in that, The casters are equipped with a locking device, which is used to lock the casters and thus fix the stair treads.

9. The multifunctional step ladder according to claim 8, characterized in that, The locking device is a snap-lock type.

10. The multifunctional step ladder according to claim 1, characterized in that, The multi-functional staircase is made of steel and has an electrostatic powder coating treatment on the surface.

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