Cart with herringbone ladder function
By designing a rotating connector and a raised structure in a trolley with herringbone function, the problems of complex structure and low safety in the prior art are solved, and the stability and safety improvement and the convenience of function switching are achieved.
Patent Information
- Application Number
- CN202421621556.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The existing cart with herringbone function has problems such as complex structural design, unreasonableness, and low safety and stability when switching functions.
A cart including handles, fixed feet, movable feet, multiple pedals, baffles and wheels is designed to achieve limits of the movable feet through rotating connectors and raised structures, ensuring stability and safety in the state of the cart and herringbone ladder.
It improves the stability and safety of the cart, simplifies structural design, and realizes the convenience of function switching.
Smart Images
Figure CN222742704U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of carts, in particular to a cart with the function of a stepladder. Background Art
[0002] A handcart is a transport vehicle that is pushed and pulled by manpower. Although the technology of handcart material handling continues to develop, handcarts are still used as an indispensable transport tool. Handcarts are widely used in production and life because they are low-cost, simple to maintain, easy to operate, and light in weight. They can work in places where motor vehicles are inconvenient to use, and are very convenient for transporting light items over short distances.
[0003] A herringbone ladder is a common tool for climbing. The front and rear legs and the ground form a triangle that 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, and when it is folded, the front and rear legs are folded together. In the prior art, a cart with the function of a herringbone ladder has appeared. A baffle plate and rollers are designed on the legs. When the front and rear legs are folded together after being folded, goods can be placed between the baffle plate and the legs, and the goods can be dragged forward by the rollers. It is a trolley, which can realize the function switching between a ladder and a trolley.
[0004] For the above-mentioned trolley with the stepladder function, the front and rear legs need to be opened and folded to switch between the trolley and stepladder functions. Therefore, there are often problems such as complex and unreasonable structural design, low safety and stability, etc. Utility Model Content
[0005] The utility model aims to provide a cart which has the function of a stepladder and has a simple structure and high safety and stability.
[0006] The technical solution adopted by the utility model is:
[0007] A cart with the function of a stepladder, comprising a handle, a fixed support leg, a movable support leg, a plurality of pedals, a baffle, and wheels;
[0008] 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 connected to the fixed support leg in sequence, the baffle is rotatably connected to the bottom of the fixed support leg, when the movable support leg is opened, the multiple pedals can be rotated to an extended state, and when the movable support leg is folded, the multiple pedals can be rotated to a folded state;
[0009] It also includes a rotating connecting piece, and the wheel is rotatably connected to the bottom of the fixed support leg through the rotating connecting piece. A protrusion is arranged on the outer side of the rotating connecting piece. When the movable support leg is folded and the wheel is opened, the protrusion can rotate with the rotating connecting piece to a position close to the movable support leg. At this time, the protrusion can form a limit for the movable support leg.
[0010] Furthermore, there are two wheels, and each wheel is rotatably connected to two sides of the bottom of the fixed support foot through a corresponding rotating connecting piece.
[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 leg.
[0013] Further, when the baffle and the wheel are in an open state, the baffle is located on one side of the fixed support leg, and the wheel is located on the other side of the fixed support leg.
[0014] Furthermore, the number of the pedals is three.
[0015] Furthermore, when the multiple pedals are rotated to the unfolded state, they are parallel to the ground, and when the multiple pedals are rotated to the folded state, the angle between them and the fixed support legs is less than 5°.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1. The utility model is designed with a rotating connection piece, through which the wheel is rotatably connected to the bottom of the fixed support leg, and a protrusion is arranged on the outer side of the rotating connection piece. When the movable support leg is folded and the wheel is opened, the protrusion can rotate with the rotating connection piece to a position close to the movable support leg. At this time, the protrusion forms a limit for the movable support leg, preventing the movable support leg from moving or even opening during the use of the cart, thereby greatly improving stability and safety;
[0018] 2. The baffle and wheels of the utility model are rotatably connected to the bottom of the fixed support leg. When the baffle is in a folded state (for example, in the state of using a stepladder), the baffle can be locked with the baffle hook to limit the position, and the wheels are in a folded state. When the baffle is in an open state (for example, in the state of using a cart), the wheels can be rotated to the open state. This design simplifies and rationalizes the overall structure and facilitates switching.
[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 The utility model is a schematic diagram of the use state of the cart which also has the function of a herringbone ladder.
[0021] Figure 2 The utility model is a schematic diagram of the use state of the cart herringbone ladder with the function of a herringbone ladder.
[0022] Figure 3 It is a front view of the utility model when the herringbone ladder is in a folded state and the baffle is not lowered.
[0023] Figure 4 It is a rear view of the utility model when the herringbone ladder is in a folded state with the baffle not lowered.
[0024] Figure 5 It is a rear view of the utility model when the herringbone ladder is in a folded state and the baffle is lowered.
[0025] Figure 6 It is a schematic diagram of the baffle hook lock structure of the utility model.
[0026] Figure 7 It is a partial view of a hook lock hooking a baffle during the unfolding process of the utility model herringbone ladder.
[0027] Figure 8 It is a partial view of a hook lock hooking a baffle during the unfolding process of the utility model herringbone ladder.
[0028] Fig. 9 It is a partial view of a hook lock hooking a baffle during the unfolding process of the utility model herringbone ladder. DETAILED DESCRIPTION
[0029] The specific embodiments of the present invention are described below 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 invention, and are not used to limit the present invention.
[0030] The directional terms such as up, down, left, right, front, back, clockwise, counterclockwise, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.
[0031] According to the specific implementation method provided by the utility model, reference Figures 1 to 5 As shown in , a cart with the function of a stepladder 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;
[0032] 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, and the multiple pedals 4 are connected to the fixed support leg 2 in sequence. Figure 2 As shown, when the movable legs 3 are opened, the multiple pedals 4 can be rotated to an unfolded state, in which the pedals 4 are parallel to the ground, and are used as a herringbone ladder. Users can step on the multiple pedals 4 to climb to a higher place, such as Figure 1 As shown, when the movable legs 3 are folded, the multiple pedals 4 can be rotated to a folded state, combined with Figure 2 ,4 , 5, the two wheels 6 are rotatably connected to the bottom of the fixed support leg 2 through a rotating connecting piece 9, and a protrusion 8 is provided on the outer side of each rotating connecting piece 9. When the state of the stepladder is changed to the state of the cart, the movable support leg 3 is folded to the fixed support leg 2, such as Figure 3-4 As shown, the baffle 5 is then rotated to open it, and the wheel 6 is also opened at the same time. After the wheel 6 is opened, the protrusion 8 rotates with the rotating connector 9 to a position close to the movable leg 3. At this time, the protrusion 8 just forms a limit for the movable leg 3, blocking the movable leg 3 to prevent the movable leg 3 from moving or even opening during the use of the cart, thereby greatly improving stability and safety.
[0033] Preferably, it also includes a baffle hook lock 7, and the baffle 5 and the wheel 6 are rotatably connected to the bottom of the fixed support leg 2, such as Figure 2 As shown, when the baffle 5 is in the folded state, the baffle 5 can be locked with the baffle hook lock 7 and the wheel 6 is in the folded state; Figure 1 As shown, when the baffle 5 is in the open state, the wheel 6 can be rotated to the open state.
[0034] Preferably, the baffle hook lock 7 is arranged on the lowermost pedal 4 .
[0035] Preferably, combined Figure 2 , 6 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.
[0036] Preferably, when the baffle 5 and the wheels 6 are in the folded state, the baffle 5 and the wheels 6 are parallel to the plane where the fixed legs 2 are located.
[0037] Preferably, 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.
[0038] Preferably, 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 .
[0039] Preferably, the number of pedals 4 is three.
[0040] Preferably, the multiple pedals 4 are parallel to the ground when they are rotated to the unfolded state, and the angle between the multiple pedals 4 and the fixed support leg 2 is 0-15° when they are rotated to the folded state.
[0041] Preferably, when the multiple pedals 4 are rotated to the folded state, the angle between them and the fixed support leg 2 is less than 5°.
[0042] The specific use method of the utility model is given below: The trolley with the function of a herringbone ladder of the utility model can be used on a herringbone ladder (such as Figure 2 ) and carts (such as Figure 1 The trolley can be switched between two usage states (as shown). When used as a stepladder, the movable legs 3 are opened and the pedals 4 are rotated to the expanded state, in which the pedals 4 are parallel to the ground. When used as a cart, the movable legs 3 are folded and then the baffle 5 is opened. When the baffle 5 is opened, the wheels 6 are also rotated and opened at the same time. At this time, the goods and items to be transported can be placed between the baffle 5 and the fixed legs 2. The handle 1 can be pushed or pulled to achieve transportation through the rolling of the wheels. After the goods are transported to the designated location, if they need to be installed or transported at a high altitude, the cart can be switched to the stepladder state to complete the installation or transportation. The baffle 5 will rotate and switch between different positions in the two usage states. In order to improve the stability and safety of the entire device, a protrusion 8 is provided on the outer side of each rotating connector 9. When switching from the stepladder state to the cart state, the movable legs 3 are folded to the fixed legs 2, as shown in FIG. Figure 3-4 As shown, the baffle 5 is then rotated to open it, and the wheel 6 is also opened. After the wheel 6 is opened, the protrusion 8 rotates with the rotating connecting member 9 to a position close to the movable support leg 3. At this time, the protrusion 8 just forms a limit for the movable support leg 3 (as shown in FIG. Figure 1 , 5 As shown), the movable support leg 3 is blocked to prevent the movable support leg 3 from moving or even opening during the use of the cart, thereby greatly improving stability and safety.
[0043] At the same time, a baffle hook lock 7 is also designed. When the baffle 5 is in the folded state, the baffle 5 can be locked with the baffle hook lock 7 to limit the position, and the wheel 6 is in the folded state (such as Figure 2 , 9 As shown), the clamping process of the baffle 5 and the baffle hook lock 7 is as follows Figure 7-9 As shown, when the ladder is used in the herringbone ladder state, the baffle 5 is firmly locked in the baffle hook lock 7 and will not become loose or even rotated, thereby improving stability and safety.
[0044] Finally, it should be noted that the above description is only for illustrating the implementation mode of the utility model and is not intended to limit the utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A cart having the function of a 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 connected to the fixed support leg (2) in sequence, the baffle (5) is rotatably connected to the bottom of 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 rotating connection member (9), and the wheel (6) is rotatably connected to the bottom of the fixed support leg (2) through the rotating connection member (9). A protrusion (8) is arranged on the outer side of the rotating connection member (9). When the movable support leg (3) is folded and the wheel (6) is opened, the protrusion (8) can rotate with the rotating connection member (9) to a position close to the movable support leg (3). At this time, the protrusion (8) can form a limit for the movable support leg (3).
2. The cart with the function of a stepladder according to claim 1, characterized in that: There are two wheels (6), and each wheel (6) is rotatably connected to two sides of the bottom of the fixed support foot (2) via a corresponding rotating connecting piece (9).
3. The cart with the function of a stepladder according to claim 1, 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.
4. The cart with the function of a stepladder according to claim 1, characterized in that: The bottom of the baffle (5) is rotatably connected to the bottom of the fixed support leg (2).
5. The cart with the function of a stepladder according to claim 1, 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).
6. The cart with the function of a stepladder according to any one of claims 1 to 5, characterized in that: The number of the pedals (4) is three.
7. The cart with the function of a stepladder 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 less than 5°.