Hidden type pickup truck container auxiliary stepping ladder

Abstract

The utility model discloses a hidden auxiliary stepping ladder for a pickup container, which comprises a mounting seat and a pedal connecting rod, and the mounting seat and the pedal connecting rod are connected through a first connecting rod and a second connecting rod which are symmetrically arranged to form a four-connecting-rod mechanism. An air spring is arranged on the inner side of the four-connecting-rod mechanism and connected between the installation base and the pedal connecting rod in a supported mode, and an anti-skid pedal is arranged at the rear end of the pedal connecting rod. According to the utility model, the gas spring is arranged inside, so that the use space of the product is reduced, the gas spring does not generate movement interference with the outside in the movement process, the collision with an external object is avoided, the safety and durability of the product are ensured, and the adaptability of the product is wider; according to the utility model, the gas spring is newly distributed, the piston rod of the gas spring and the first connecting rod share the articulated shaft, and the gas spring mounting point is controlled on the articulated shaft, so that the length of the gas spring during working is almost unchanged, the stability of the output force of the gas spring is ensured, and the running speed of the pedal is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, and particularly relates to a hidden pickup truck cargo box auxiliary step ladder. Background Technique

[0002] There is a height difference between the pickup truck cargo box and the rear of an ordinary household car, making it difficult for users to get on and off when the pickup truck cargo box door is opened.

[0003] By installing a step ladder at the rear of the pickup truck cargo box, it is convenient for users to get on and off the cargo box. However, in the existing pickup truck tailgate step ladder products, the driving springs are located at both ends of the product, and the springs are located outside the product, resulting in a large installation space for the product, greatly reducing its applicability. The springs are easily collided with external objects, reducing the safety and durability of the product. At the same time, the driving springs of the existing products are spiral tension springs and the connection points of the springs are unreasonable. When the product is opened or closed, the speed is relatively fast or uneven, posing a risk of colliding with users, and there will be noise caused by vibration. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the utility model provides a new type of connecting rod driving mechanism to achieve the purpose of realizing the electric function of the product by driving the opening of the front cover of the car with a driver.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] A hidden pickup truck cargo box auxiliary step ladder includes a mounting seat and a foot pedal connecting rod. The mounting seat and the foot pedal connecting rod are connected by symmetrically arranged first connecting rods and symmetrically arranged second connecting rods to form a four-bar linkage mechanism. An air spring is supported and connected between the mounting seat and the foot pedal connecting rod inside the four-bar linkage mechanism. An anti-slip foot pedal is provided at the rear end of the foot pedal connecting rod; a fixed shaft spanning between the two side connecting plates is provided on the mounting seat, and a hinge shaft spanning between the two side connecting plates is provided at the front end of the foot pedal connecting rod. The mounting end of the air spring is hinged to the mounting seat through the fixed shaft, and the piston rod connecting end of the air spring is hinged to the foot pedal connecting rod through the hinge shaft; the upper ends of the first connecting rod and the second connecting rod are hinged to the mounting seat, the lower ends of the first connecting rod and the second connecting rod are hinged to the foot pedal connecting rod, and the lower end of the first connecting rod is hinged to the air spring through a common hinge shaft.

[0007] Preferably, a lower sealing plate is provided on the lower end surface of the first connecting rod, end sealing plates are provided on the front side and the lower side of the front ends of the two side connecting plates at the front end of the foot pedal connecting rod, and a buffer pad is provided on the outer side surface of the end sealing plate.

[0008] Preferably, the mounting seat is U-shaped, and mounting holes are provided at the top of the mounting seat.

[0009] Preferably, the buffer pads are arranged on the front side and the outer side of the lower end side of the two connecting plates at the front end of the pedal connecting rod.

[0010] Preferably, a connecting rod connecting plate for fixing the connecting rod is provided between the second connecting rods.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The gas spring is built-in, reducing the usage space of the product. During the opening and closing processes, the gas spring does not generate movement interference with the outside, avoiding collisions with external objects, ensuring the safety, durability of the product, and making the product more adaptable.

[0013] 2. The gas spring is newly arranged. By adopting the gas spring and sharing the hinge shaft with the piston rod of the first connecting rod, the product can be automatically retracted with a small external force to achieve the hidden purpose. The product has three force arm directions: zero force arm position, negative force arm position, and positive force arm position during operation. The conversion between the positive and negative force arms can realize the automatic recovery and extension of the product; at the same time, the installation point of the gas spring is controlled on the hinge shaft, making the length of the gas spring hardly change during operation, ensuring the stability of the output force of the gas spring. Thus, the running speed of the pedal is stable and there is no obvious change during the opening and closing processes of the product, and the running force of the pedal always remains unchanged, avoiding the problems of rapid extension and collision with users and uneven running speed.

[0014] 3. The gas spring is used instead of the spiral spring and is subjected to buffer and shock absorption treatment, making the operation more stable, smooth, and without abnormal noise, improving the user experience.

[0015] 4. The structure of this auxiliary step ladder is compact, retractable and hidden, occupying a small space, running smoothly, and can be used as an auxiliary step ladder for the pickup tailgate, and can also be used in other scenarios that require retractable and hidden auxiliary up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of the structure of the utility model;

[0017] Figure 2 is a view of the product in the contracted state at the negative force arm position of the utility model;

[0018] Figure 3 is a view of the product in the hovering state at the zero force arm position of the utility model;

[0019] Figure 4 is a view of the product in the opened state at the positive force arm position of the utility model.

[0020] In the figure: 1. mounting seat; 11. fixed shaft; 2. pedal connecting rod; 21. hinge shaft; 3. first connecting rod; 4. second connecting rod; 5. gas spring; 6. lower sealing plate; 7. end sealing plate; 71. buffer pad; 8. connecting rod connecting plate; 9. anti-slip pedal. Detailed implementation mode

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figures 1-4 shown, a hidden pickup truck cargo box auxiliary step ladder includes a mounting base 1 and a foot pedal connecting rod 2. The mounting base 1 is U-shaped, providing an installation and movement space for the gas spring 5, the first connecting rod 3 and the second connecting rod 4. The top of the mounting base 1 is provided with mounting holes for fixing and installing with the tailgate of the pickup truck cargo box. The rear end of the foot pedal connecting rod 2 is provided with an anti-slip foot pedal 9; the mounting base 1 and the foot pedal connecting rod 2 are connected by symmetrically arranged first connecting rods 3 and symmetrically arranged second connecting rods 4 to form a four-bar linkage mechanism. A gas spring 5 is arranged inside the four-bar linkage mechanism to support and connect between the mounting base 1 and the foot pedal connecting rod 2; a fixed shaft 11 spanning between the two side connecting plates is arranged on the mounting base 1, and a hinge shaft 21 spanning between the two side connecting plates is arranged at the front end of the foot pedal connecting rod 2. The mounting end of the gas spring 5 is hinged to the mounting base 1 through the fixed shaft 11, and the piston rod connecting end of the gas spring 5 is hinged to the foot pedal connecting rod 2 through the hinge shaft 21.

[0023] The upper ends of the first connecting rod 3 and the second connecting rod 4 are hinged to the mounting base 1, the lower ends of the first connecting rod 3 and the second connecting rod 4 are hinged to the foot pedal connecting rod 2, and the lower end of the first connecting rod 3 is hinged to the gas spring 5 through the same hinge shaft 21. A lower sealing plate 6 is provided on the lower end surface of the first connecting rod 3 in a clamping manner, and a connecting rod connecting plate 8 for fixing the connecting rod is arranged between the second connecting rods 4. End sealing plates 7 are provided on the front end sides and lower end sides of the two side connecting plates at the front end of the foot pedal connecting rod 2. A buffer pad 71 is provided on the outer side surface of the end sealing plate 7. The buffer pad 71 is arranged on the outer side surfaces of the front end sides and lower end sides of the two side connecting plates at the front end of the foot pedal connecting rod 2. The buffer pad 71 located on the front end side provides buffer protection and noise reduction when the foot pedal connecting rod 2 is in the retracted position, and the buffer pad 71 located on the lower end side provides buffer protection and noise reduction when the foot pedal connecting rod 2 is in the opened position.

[0024] When in use, when the tailgate of the pickup truck cargo box is opened and laid flat, the user steps on the anti-slip foot pedal 9 and gently exerts force backward to make the anti-slip foot pedal 9 extend and open, that is, to form an open state in the positive force arm position, and the user can easily get on and off the cargo box; when it is necessary to retract the hidden type after use, just gently exert force forward to make the anti-slip foot pedal 9 contract, that is, to form a contracted and hidden state in the negative force arm position; when the user needs to pause at any position during the extension or contraction process, just stop applying force, that is, to form a hovering state in the zero force arm position.

[0025] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hidden pickup truck cargo box auxiliary step ladder, characterized by: The invention comprises a mounting seat (1) and a pedal connecting rod (2), wherein the mounting seat (1) and the pedal connecting rod (2) are connected to form a four-bar linkage through a symmetrically arranged first connecting rod (3) and a symmetrically arranged second connecting rod (4), wherein a gas spring (5) is arranged inside the four-bar linkage to support and connect between the mounting seat (1) and the pedal connecting rod (2), and a non-slip pedal (9) is arranged on the rear end of the pedal connecting rod (2); The mounting seat (1) is provided with a fixed shaft (11) spanning between the connecting plates on both sides, the front end of the pedal connecting rod (2) is provided with a hinge shaft (21) spanning between the connecting plates on both sides, the mounting end of the gas spring (5) is hinged to the mounting seat (1) through the fixed shaft (11), and the piston rod connecting end of the gas spring (5) is hinged to the pedal connecting rod (2) through the hinge shaft (21); the upper ends of the first connecting rod (3) and the second connecting rod (4) are hinged to the mounting seat (1), the lower ends of the first connecting rod (3) and the second connecting rod (4) are hinged to the pedal connecting rod (2), and the lower end of the first connecting rod (3) is hinged to the gas spring (5) through the hinge shaft (21).

2. The hidden pickup truck cargo box auxiliary step ladder according to claim 1, characterized in that: The lower end surface of the first connecting rod (3) is provided with a lower sealing plate (6), the front end side and the lower end side of the two side connecting plates at the front end of the pedal connecting rod (2) are provided with end sealing plates (7), and the outer side surface of the end sealing plate (7) is provided with a buffer pad (71).

3. The hidden pickup truck cargo box auxiliary step ladder according to claim 1, characterized in that: The mounting seat (1) is U-shaped, and a mounting hole is provided on the top of the mounting seat (1).

4. The hidden pickup truck cargo box auxiliary step ladder according to claim 2, characterized in that: The buffer pad (71) is arranged on the outer surfaces of the front end side and the lower end side of the connecting plates on both sides of the front end of the pedal connecting rod (2).

5. The hidden auxiliary step ladder for pickup truck cargo box according to claim 1, characterized in that: A connecting rod connecting plate (8) for fixing the connecting rod is provided between the second connecting rods (4).

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