Multifunctional herringbone ladder

Abstract

The utility model discloses a multifunctional herringbone ladder which comprises a handle (1), a fixed supporting leg (2), a movable supporting leg (3), a plurality of pedals (4), a baffle (5), wheels (6) and a baffle hook lock (7), the top of the movable supporting leg (3) is rotationally connected with the fixed supporting leg (2), the pedals (4) are sequentially connected to the fixed supporting leg (2), when the movable supporting leg (3) is unfolded, the pedals (4) can rotate to be in an unfolded state, and when the movable supporting leg (3) is folded, the pedals (4) can rotate to be in a folded state; the baffles (5) and the wheels (6) are rotationally connected to the bottoms of the fixed supporting legs (2), when the baffles (5) are in a folded state, the baffles (5) and the baffle hook locks (7) can be clamped and limited, and meanwhile the wheels (6) are in a folded state; when the baffle (5) is in the open state, the wheels (6) can rotate to the open state. The utility model has the advantages of simple and reasonable structure and high stability and safety in use.

Description

Technical Field

[0001] The utility model belongs to the technical field of ladders, in particular to a multifunctional herringbone ladder. Background Art

[0002] A herringbone ladder is a common tool for climbing. The front and rear legs and the ground form a triangle, which looks like a "human" character. A herringbone ladder can include a fixed herringbone ladder and a movable herringbone ladder. When the movable herringbone ladder is opened, the front and rear legs form a certain angle. When the front and rear legs are folded together, a multifunctional herringbone ladder has appeared in the prior art. The baffles and rollers are designed on the legs. When the front and rear legs are folded together, the goods can be placed between the baffles and the legs, and the goods can be dragged forward by the rollers, which is a cart, and the function switching between the ladder and the cart can be realized.

[0003] The above-mentioned multifunctional stepladder often has problems such as complex and unreasonable structural design, low safety and stability when it is switched to be used as a ladder or a trolley. Utility Model Content

[0004] The utility model aims to provide a multifunctional herringbone ladder with simple structure and high safety and stability.

[0005] The technical solution adopted by the utility model is:

[0006] A multifunctional stepladder comprises a handle, a fixed support leg, a movable support leg, a plurality of pedals, a baffle and wheels;

[0007] The handle is located at the top of the fixed support leg, the top of the movable support leg is rotatably connected to the fixed support leg, the multiple pedals are sequentially connected to the fixed support leg, when the movable support leg is opened, the multiple pedals can be rotated to an extended state, when the movable support leg is folded, the multiple pedals can be rotated to a folded state;

[0008] It also includes a baffle hook lock, and the baffle and the wheel are rotatably connected to the bottom of the fixed support leg. When the baffle is in a folded state, the baffle can be locked with the baffle hook lock to limit the position, and the wheel is in a folded state; when the baffle is in an open state, the wheel can be rotated to an open state.

[0009] Furthermore, the baffle hook lock is arranged on the lowest pedal.

[0010] Furthermore, one end of the baffle hook lock is fixedly connected to the lowest pedal, and the other end is hook-shaped. The top of the baffle has a hole. When the baffle is in a folded state, the other end of the baffle hook lock passes through the hole and is clamped with the baffle.

[0011] Furthermore, when the baffle and the wheels are in a folded state, the two are parallel to the plane where the fixed support legs are located.

[0012] Furthermore, the bottom of the baffle is rotatably connected to the bottom of the fixed support feet, and there are two wheels, which are respectively rotatably connected to both sides of the bottom of the fixed support feet.

[0013] Furthermore, when the baffle and the wheels are in the open state, the baffle is located on one side of the fixed support feet, and the wheels are located on the other side of the fixed support feet.

[0014] Furthermore, the number of the pedals is three.

[0015] Furthermore, when multiple pedals are rotated to the unfolded state, they are parallel to the ground, and when multiple pedals are rotated to the folded state, the angle between them and the fixed support feet is 0-15°.

[0016] Furthermore, when multiple pedals are rotated to the folded state, the angle between them and the fixed support feet is less than 5°.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. The present utility model designs a baffle hook lock. When the baffle is in the folded state, the baffle can be clamped and limited by the baffle hook lock. At the same time, the wheels are in the folded state. When used in the state of an A-frame ladder, the baffle is firmly clamped into the baffle hook lock, and there will be no loosening or even rotation, greatly improving the stability and safety.

[0019] 2. The baffle and the wheels of the present utility model are rotatably connected to the bottom of the fixed support feet. When the baffle is in the folded state (for example, in the state of using an A-frame ladder), the baffle can be clamped and limited by the baffle hook lock, and at the same time, the wheels are in the folded state. When the baffle is in the open state (for example, in the state of using a trolley), the wheels can be rotated to the open state. Such a design simplifies and rationalizes the overall structure and enables convenient switching.

[0020] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages. The following will refer to the drawings to further describe the present utility model in detail. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the usage state of the multifunctional A-frame ladder of the present utility model.

[0022] Figure 2 is a schematic diagram of the usage state of the trolley of the multifunctional A-frame ladder of the present utility model.

[0023] Figure 3 is the front view of the A-frame ladder of the present utility model with the baffle not lowered in the folded state.

[0024] Figure 4 is the rear view of the A-frame ladder of the present utility model with the baffle not lowered in the folded state.

[0025] Figure 5 This is the rear view of the baffle being lowered in the folded state of the utility model's folding ladder.

[0026] Figure 6 This is a schematic diagram of the baffle hook lock structure of the utility model.

[0027] Figure 7 This is a partial view of the hook lock hooking the baffle during the unfolding process of the utility model's folding ladder.

[0028] Figure 8 This is a partial view of the hook lock hooking the baffle during the unfolding process of the utility model's folding ladder.

[0029] Figure 9 This is a partial view of the hook lock hooking the baffle during the unfolding process of the utility model's folding ladder. Detailed implementation manners

[0030] The following describes the specific embodiments of the present utility model in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0031] The orientation terms such as up, down, left, right, front, back, clockwise, and counterclockwise mentioned or possibly mentioned in this specification are defined relative to the structures shown in the respective drawings. They are relative concepts and may therefore change accordingly depending on their different positions and usage states. Therefore, these or other orientation terms should not be interpreted as restrictive terms.

[0032] According to the specific implementation manners provided by the present utility model, as shown in Figures 1 to 5 a multifunctional folding ladder includes a handle 1, a fixed support leg 2, a movable support leg 3, a plurality of pedals 4, a baffle 5, and wheels 6;

[0033] The handle 1 is located at the top of the fixed support leg 2. The top of the movable support leg 3 is rotatably connected to the fixed support leg 2. The plurality of pedals 4 are sequentially connected to the fixed support leg 2. As Figure 1 shown, when the movable support leg 3 is opened, the plurality of pedals 4 can be rotated to the unfolded state. In this state, the pedals 4 are parallel to the ground. At this time, it is used as a folding ladder, and the user can step on the plurality of pedals 4 to climb to a high place. As Figure 2 shown, when the movable support leg 3 is folded, the plurality of pedals 4 can be rotated to the folded state;

[0034] It further includes a baffle hook lock 7. The baffle 5 and the wheels 6 are rotatably connected to the bottom of the fixed support leg 2. As Figure 1 shown, when the baffle 5 is in the folded state, the baffle 5 can be snap-connected and limited with the baffle hook lock 7. At the same time, the wheels 6 are in the folded state;Figure 2 As shown, when the baffle 5 is in the open state, the wheel 6 can rotate to the open state.

[0035] Preferably, the baffle hook lock 7 is arranged on the lowermost pedal 4.

[0036] Preferably, in combination Figure 1 、 6 , one end of the baffle hook lock 7 is fixedly connected to the lowermost pedal 4, and the other end is hook-shaped. The top of the baffle 5 has a hole. When the baffle 5 is in the folded state, the other end of the baffle hook lock 7 passes through the hole and is clamped with the baffle 5.

[0037] Preferably, when the baffle 5 and the wheel 6 are in the folded state, they are parallel to the plane where the fixed support leg 2 is located.

[0038] Preferably, the bottom of the baffle 5 is rotatably connected to the bottom of the fixed support leg 2. The wheel 6 includes two, which are respectively rotatably connected to both sides of the bottom of the fixed support leg 2.

[0039] Preferably, in combination Figure 2 、 4 、5, the two wheels 6 are respectively rotatably connected to the bottom of the fixed support leg 2 through the rotating connecting member 9. A protrusion 8 is arranged on the outside of each rotating connecting member 9. When converting from the stepladder state to the trolley state, the movable support leg 3 is folded to the fixed support leg 2, as Figures 3 - 4 shown. Then, at this time, rotate the baffle 5 to open it, and at the same time, the wheel 6 is also opened. After the wheel 6 is opened, the protrusion 8 rotates to a position close to the movable support leg 3 along with the rotating connecting member 9. At this time, the protrusion 8 just forms a limit for the movable support leg 3, preventing the movable support leg 3 from moving or even opening during the use of the trolley, greatly improving the stability and safety.

[0040] Preferably, when the baffle 5 and the wheel 6 are in the open state, the baffle 5 is located on one side of the fixed support leg 2, and the wheel 6 is located on the other side of the fixed support leg 2.

[0041] Preferably, the number of the pedals 4 is three.

[0042] Preferably, when the multiple pedals 4 rotate to the unfolded state, they are parallel to the ground. When the multiple pedals 4 rotate to the folded state, the angle between them and the fixed support leg 2 is 0 - 15°.

[0043] Preferably, when the multiple pedals 4 rotate to the folded state, the angle between them and the fixed support leg 2 is less than 5°.

[0044] The following gives the specific usage method of the present invention: The multifunctional stepladder of the present invention can be used as a stepladder (such as Figure 1 ) and a trolley (such as Figure 2Switch between two usage states. When used as an A-frame ladder, the movable support feet 3 are opened, and the pedal 4 rotates to the unfolded state. In this state, the pedal 4 is parallel to the ground. When used as a trolley, the movable support feet 3 are folded, and then the baffle 5 is opened. When the baffle 5 is opened, the wheels 6 will also rotate and open at the same time. At this time, goods and items to be transported can be placed between the baffle 5 and the fixed support feet 2. Push or pull the handle 1, and the transportation can be achieved through the rolling of the wheels. When the goods are transported to the designated location, if climbing installation or transmission is required, the trolley can be switched to the A-frame ladder state to complete the climbing installation or transmission. The baffle 5 rotates and switches between different positions in the two usage states. To improve the stability and safety of the entire device, a baffle hook lock 7 is designed. When the baffle 5 is in the folded state, the baffle 5 can be clamped and limited with the baffle hook lock 7. At the same time, the wheels 6 are in the folded state (as shown in Figure 1 and 9 ). The clamping process of the baffle 5 and the baffle hook lock 7 is as shown in Figures 7 - 9 . When used in the A-frame ladder state, the baffle 5 is firmly clamped into the baffle hook lock 7, and there will be no loosening or even rotation, greatly improving the stability and safety.

[0045] Finally, it should be noted that the above description is only to illustrate the implementation mode of the present invention and is not used to limit the present invention. For those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional stepladder, comprising a handle (1), a fixed support leg (2), a movable support leg (3), a plurality of pedals (4), a baffle (5), and wheels (6); The handle (1) is located at the top of the fixed support leg (2), the top of the movable support leg (3) is rotatably connected to the fixed support leg (2), the multiple pedals (4) are sequentially connected to the fixed support leg (2), when the movable support leg (3) is opened, the multiple pedals (4) can be rotated to an extended state, and when the movable support leg (3) is folded, the multiple pedals (4) can be rotated to a folded state; It is characterized in that It also includes a baffle hook lock (7), the baffle (5) and the wheel (6) are rotatably connected to the bottom of the fixed support leg (2), when the baffle (5) is in a folded state, the baffle (5) can be locked with the baffle hook lock (7) to limit the position, and the wheel (6) is in a folded state; when the baffle (5) is in an open state, the wheel (6) can be rotated to an open state.

2. The multifunctional herringbone ladder according to claim 1, characterized in that: The baffle hook lock (7) is arranged on the lowest pedal (4).

3. The multifunctional herringbone ladder according to claim 2, characterized in that: One end of the baffle hook lock (7) is fixedly connected to the bottom pedal (4), and the other end is hook-shaped. The top of the baffle (5) has a hole. When the baffle (5) is in a folded state, the other end of the baffle hook lock (7) passes through the hole and is engaged with the baffle (5).

4. The multifunctional herringbone ladder according to claim 3, characterized in that: When the baffle (5) and the wheel (6) are in a folded state, the baffle (5) and the wheel (6) are parallel to the plane where the fixed support leg (2) is located.

5. The multifunctional herringbone ladder according to claim 3, characterized in that: The bottom of the baffle (5) is rotatably connected to the bottom of the fixed support leg (2), and the wheels (6) include two wheels, which are rotatably connected to two sides of the bottom of the fixed support leg (2) respectively.

6. The multifunctional herringbone ladder according to claim 3, characterized in that: When the baffle (5) and the wheel (6) are in an open state, the baffle (5) is located on one side of the fixed support leg (2), and the wheel (6) is located on the other side of the fixed support leg (2).

7. The multifunctional herringbone ladder according to any one of claims 1 to 5, characterized in that: The number of the pedals (4) is three.

8. The multifunctional herringbone ladder according to any one of claims 1 to 5, characterized in that: When the multiple pedals (4) are rotated to an unfolded state, they are parallel to the ground; when the multiple pedals (4) are rotated to a folded state, the angle between them and the fixed support leg (2) is 0-15°.

9. The multifunctional herringbone ladder according to claim 8, characterized in that: When the multiple pedals (4) are rotated to a folded state, the angle between them and the fixed support legs (2) is less than 5°.

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