New energy commercial vehicle container sideboard damping device

Abstract

The invention discloses a new energy commercial vehicle container sideboard damping device which comprises a damping device sideboard fixing support, a connecting support, a rotating shaft fixing support, a movable rotating shaft, a thrust rod and a pressure spring device, and the damping device sideboard fixing support is connected with a container sideboard; the upper end of the connecting bracket is connected with the damping device sideboard fixing support, and the lower end is connected with the movable rotating shaft; the lower end of the movable rotating shaft is rotationally connected with the rotating shaft fixing support through a shaft pin; one end of the thrust rod is connected with the movable rotating shaft through a pin shaft, and the other end of the thrust rod is connected with the upper end of the pressure spring device. Effective assistance can be easily provided for opening and closing of the container by installing the container sideboard damping device, and opening and closing of the container can be easily achieved; and meanwhile, the container side plate cannot quickly descend under the action of gravity when being opened, and can stay at a required angle and position, so that the use area of the container is increased, and the safety of goods is effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a side panel damping device for a cargo box of a new energy commercial vehicle. Background Art

[0002] New energy commercial vehicles (such as light trucks and trucks) are essential tools for urban logistics and freight transportation. The practicality, safety, and ease of use of their cargo box structures directly impact transportation efficiency and user experience. As a key component of the cargo box, cargo box side panels are primarily used to seal the sides to prevent cargo from falling, while also needing to be opened to provide operating space during loading and unloading.

[0003] At present, the cargo box side panels of existing new energy commercial vehicles mostly adopt a traditional structure without damping and are only connected to the cargo box body through simple hinges. This structure has the following significant defects: (1) Difficult operation: The side panels of the cargo box are heavy. Due to the lack of a power assist device, the operator needs to apply a large torque when opening and closing. Especially in the scenario of frequent loading and unloading of goods, it is easy to cause fatigue and reduce work efficiency. (2) Prominent safety hazards: During the opening or closing process, the side panels move freely only under the action of gravity, and the descending speed is fast and uncontrolled. They are prone to violent collisions with the cargo box floor or other components, which may not only cause the goods to be bumped or dropped, but may also injure the operator, posing a serious safety risk. (3) Severe noise and wear: The hard collision between the side panels and the cargo box will generate a large noise, affecting the working environment. At the same time, long-term collisions will cause the paint on the edge of the side panels to peel and deform, accelerate the rust of components, shorten the service life of the cargo box, and increase maintenance costs. (4) Limited angle adjustment: Traditional side panels cannot stay stable at any angle and can only be fully opened or closed, resulting in a fixed operating space during loading and unloading. It is difficult to adapt to the loading and unloading needs of goods of different sizes and shapes, reducing the effective use area of ​​the cargo box.

[0004] Therefore, there is an urgent need for a device that can provide damping, buffering and assistance for the side panels of the cargo box, so as to achieve smooth opening / closing of the side panels, stop at any angle, and reduce operating intensity and safety risks. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a new energy commercial vehicle cargo box side panel damping device, which facilitates the opening and closing of the cargo box side panels, increases the effective use area of ​​the cargo box, ensures the safety of people and goods, and simultaneously reduces the noise and vibration when the cargo box side panels are opened and closed.

[0006] The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0007] A new energy commercial vehicle cargo box side panel damping device, comprising: a damping device side panel fixing support, a connecting bracket, a rotating shaft fixing support, a movable rotating shaft, a thrust rod and a pressure spring device, wherein the damping device side panel fixing support is fixedly connected to the cargo box side panel by a side panel fixing support bolt; the upper end of the connecting bracket is connected to the damping device side panel fixing support, and the lower end is connected to the upper end of the movable rotating shaft; the lower end of the movable rotating shaft is rotatably connected to the rotating shaft fixing support by an axle pin; the pressure spring device comprises a pressure spring upper fixing support, a spring pressure plate, a spring, a pressure spring lower fixing support and a support fixing hole, and the pressure spring lower fixing support is connected to the side panel fixing support by axle pin. The cam is fixed to the longitudinal beam of the cargo box through a fastener passing through the support fixing hole; the two ends of the spring respectively abut the spring pressure plate and the lower fixed support of the pressure spring; the upper fixed support of the pressure spring is sleeved on the outside of the thrust rod and is arranged opposite to the spring pressure plate; the other end of the thrust rod away from the upper fixed support of the pressure spring is connected to the movable rotating shaft through the axle pin; when the side panel of the cargo box rotates, the connecting bracket is driven to swing through the side panel fixed support of the damping device, driving the movable rotating shaft to rotate around its own axis, and then driving the thrust rod to move axially, so that the spring pressure plate compresses or releases the spring to achieve damping buffering.

[0008] Preferably, in the above technical solution, there are one or two axle pins connecting the movable rotating shaft and the rotating shaft fixed support. If there are two axle pins, they are distributed at intervals along the axial direction of the movable rotating shaft. The axle pins are used to limit the axial movement of the movable rotating shaft and allow it to rotate.

[0009] Preferably, in the above technical solution, circular holes are provided on the side panel fixing support of the damping device, and the side panel fixing support bolts can pass through the circular holes to fix the side panel fixing support of the damping device to the side panel of the cargo box, and the number of the circular holes is adapted to the number of the side panel fixing support bolts.

[0010] Preferably, in the above technical solution, the spring is a cylindrical helical compression spring, and its stiffness is configured to enable the cargo box side panel to stay at any angle within the range of 0°-180°.

[0011] Preferably, in the above technical solution, the upper fixed support of the pressure spring and the lower fixed support of the pressure spring are respectively located on both sides of the spring to limit the spring radially.

[0012] Preferably, in the above technical solution, an anti-dropping retaining spring is provided at the end of the shaft pin to prevent the shaft pin from falling off from the connecting hole.

[0013] Preferably, in the above technical solution, the thrust rod and the spring pressure plate are an integrated structure or are fixed by welding, and the axes of the two coincide with each other.

[0014] Preferably, in the above technical solution, the rotating shaft fixing support and the cargo box cross beam are connected by welding or bolts.

[0015] The above technical solution of the present invention has the following beneficial effects:

[0016] (1) The cargo box side panels adopt a damping design for the first time. When the cargo box side panels are lowered, there will be a buffer control, which can effectively ensure the safety of goods and operators;

[0017] (2) Preventing collision and noise of cargo box side panels: After the cargo box side panels are opened, they will be buffered and controlled to prevent the cargo box side panels from falling freely due to gravity, and will not collide with the cargo box floor and make noise;

[0018] (3) It facilitates the opening and closing of the cargo box: Since the weight of a single cargo box side panel is about 60 kg, it is difficult for personnel to open and close the cargo box side panel without auxiliary power, and a large torque is required;

[0019] (4) When the cargo box side panels are opened, the angle and position of the cargo box side panels can be adjusted as needed, thereby increasing the usable area of ​​the cargo box and reducing the risk of cargo falling;

[0020] (5) It increases the service life of the cargo box side panels and saves the cost of use: The paint peeling and rusting of the cargo box side panels due to collision will affect the service life of the cargo box and also save the cost of use of the cargo box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0022] Figure 1 This is a schematic diagram of the installation of the new energy commercial vehicle cargo box side panel damping device of the present invention.

[0023] Figure 2 This is a schematic structural diagram of the side panel damping device for the cargo box of a new energy commercial vehicle according to the present invention.

[0024] Figure 3 Exploded view of the pressure spring device.

[0025] Figure 4 Schematic diagram of the front and rear connections of the pressure rod.

[0026] Figure 5 Open the angle display for the cargo box side panels.

[0027] Among them: 1-damping device side panel fixing support, 2-side panel fixing support bolt, 3-connecting bracket, 4-rotating shaft fixing support, 5-movable rotating shaft, 6-axle pin, 7-thrust rod, 8-pressure spring device, 81-pressure spring upper fixed support, 82-spring pressure plate, 83-spring, 84-pressure spring lower fixed support, 85-support fixing hole, 9-cargo box side panel, 10-damping device. DETAILED DESCRIPTION

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0029] The new energy commercial vehicle cargo box side panel damping device of this application is integrally assembled on the side of the new energy commercial vehicle cargo box. Figure 1 and Figure 2 As shown, the cargo box side panels 9 are metal plate structures, rotatably connected to the cargo box body via damping devices 10. These devices are located along the longitudinal and transverse beams of the cargo box. Their core components include: a damping device side panel mounting bracket 1 fixed to one side of the cargo box side panel 9; a pivot mounting bracket 4 welded to the cargo box transverse beam; and a pressure spring device 8 bolted to the cargo box longitudinal beam. These components form a linkage structure via a connecting bracket 3, a movable pivot 5, and a thrust rod 7. When the cargo box side panels 9 are opened or closed, the damping devices 10 act synchronously, achieving both cushioning and assist functions.

[0030] like Figure 2 As shown, the core structure of the damping device 10 includes:

[0031] The damping device side plate fixing support 1 is a rectangular metal plate, which is fastened to the cargo box side plate 9 by the side plate fixing support bolts 2;

[0032] The connecting bracket 3 is a long metal rod, one end of which is connected to the damping device side plate fixed support 1, and the other end is connected to the upper end of the movable shaft 5 through the shaft pin 6;

[0033] The movable shaft 5 is a cylindrical metal rod, the middle of which is inserted into the U-shaped groove of the shaft fixing support 4 and is connected to the shaft fixing support 4 through the transversely distributed shaft pins 6, so that the movable shaft 5 can rotate around its own axis;

[0034] The thrust rod 7 is a cylindrical metal rod, one end of which is connected to the lower end of the movable shaft 5 through an axle pin 6, and the other end is connected to the pressure spring device 8 to form a force transmission path.

[0035] like Figure 3 As shown, the pressure spring device 8 is the core component for achieving damping and buffering, and is composed of the following components:

[0036] The fixed support 81 on the pressure spring is an annular metal part, which is sleeved on the outside of the thrust rod 7 and is used to limit the radial displacement of the upper end of the spring 83;

[0037] The spring pressure plate 82 is a circular metal plate connected to the end of the thrust rod 7 and compresses the spring 83 when the thrust rod 7 moves;

[0038] The spring 83 is a cylindrical helical compression spring, with its two ends respectively abutting against the spring pressure plate 82 and the lower fixed support 84 of the pressure spring;

[0039] The lower fixed support 84 of the pressure spring is an annular metal part, the upper surface of which is used to support the spring 83, and the bottom is provided with a support fixing hole 85, which is fixed to the longitudinal beam of the cargo box by bolts passing through the support fixing hole 85.

[0040] like Figure 4 As shown, two key connection points are formed at both ends of the thrust rod 7: one end is connected to the lower end of the movable shaft 5 through an axle pin 6, and the connection is preferably hinged, allowing the thrust rod 7 to change angle as the movable shaft 5 rotates to ensure that the direction of the force is adapted; the other end is fixedly connected to the spring pressure plate 82: when the movable shaft 5 rotates, the thrust rod 7 moves back and forth along the axial direction, compressing or releasing the spring 83 through the spring pressure plate 82 - when moving forward (close to the spring), the spring 83 is compressed and stores energy; when moving backward (away from the spring), the spring 83 rebounds and releases energy to form a damping force.

[0041] like Figure 5 As shown, this device can achieve stable stop of the cargo box side panel 9 at any angle within the range of 0-180 degrees:

[0042] When the cargo box side panel 9 is in a 180-degree flat state (left side in the figure), the side panel is fully expanded and flush with the side of the cargo box. At this time, the spring 83 is compressed to the maximum extent, and the damping force balances the gravity of the side panel, so that it remains flat, which is convenient for loading and unloading large goods; when the cargo box side panel 9 is in a 140-degree inclined state (right side in the figure), the side panel is at an inclined angle, and the spring 83 is in a semi-compressed state, which can adapt to the quick placement and removal of small and medium-sized goods, and avoid the side panel being fully expanded to occupy extra space.

[0043] In actual operation, the operator only needs to apply a small external force to push the cargo box side panel 9, and the side panel can slowly rotate; after releasing the external force, under the action of the damping force of the spring 83, the side panel immediately stays at the target angle without the need for an additional locking structure.

[0044] Through the above-mentioned structure, the device of this application realizes the smooth operation, safety protection and flexible adjustment of the cargo box side panels, effectively solving the defects of the existing technology.

[0045] Although the present invention has been disclosed above by way of embodiments, they are not intended to limit the present invention. Any person skilled in the art may make various choices and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A new energy commercial vehicle cargo box side panel damping device, characterized in that: include: A damping device side plate fixed support (1), a connecting bracket (3), a rotating shaft fixed support (4), a movable rotating shaft (5), a thrust rod (7) and a pressure spring device (8), wherein the damping device side plate fixed support (1) is fixedly connected to the cargo box side plate (9) through a side plate fixed support bolt (2); the upper end of the connecting bracket (3) is connected to the damping device side plate fixed support (1), and the lower end is connected to the upper end of the movable rotating shaft (5); the lower end of the movable rotating shaft (5) is rotatably connected to the rotating shaft fixed support (4) through an axle pin (6); the pressure spring device (8) includes a pressure spring upper fixed support (81), a spring pressure plate (82), a spring (83), a pressure spring lower fixed support (84) and a support fixing hole (85), wherein the pressure spring lower fixed support (84) is provided through the The fasteners of the support fixing hole (85) are fixed to the longitudinal beam of the cargo box; the two ends of the spring (83) respectively abut the spring pressure plate (82) and the lower fixed support (84) of the pressure spring; the upper fixed support (81) of the pressure spring is sleeved on the outside of the thrust rod (7) and is arranged opposite to the spring pressure plate (82); the other end of the thrust rod (7) away from the upper fixed support (81) of the pressure spring is connected to the movable shaft (5) through the shaft pin (6); when the cargo box side plate (9) rotates, the side plate fixed support (1) of the damping device drives the connecting bracket (3) to swing, drives the movable shaft (5) to rotate around its own axis, and then drives the thrust rod (7) to move axially, so that the spring pressure plate (82) compresses or releases the spring (83) to achieve damping buffering.

2. The new energy commercial vehicle cargo box side panel damping device according to claim 1 is characterized in that: The movable rotating shaft (5) is connected to the rotating shaft fixed support (4) by one or two shaft pins (6). If there are two shaft pins (6), they are distributed at intervals along the axial direction of the movable rotating shaft (5). The shaft pins (6) are used to limit the axial movement of the movable rotating shaft (5) and allow it to rotate.

3. The new energy commercial vehicle cargo box side panel damping device according to claim 1 is characterized in that: The damping device side plate fixing support (1) is provided with a circular hole, and the side plate fixing support bolt (2) can pass through the circular hole to fix the damping device side plate fixing support (1) to the cargo box side plate (9), and the number of the circular holes is adapted to the number of the side plate fixing support bolts (2).

4. The new energy commercial vehicle cargo box side panel damping device according to claim 1 is characterized in that: The spring (83) is a cylindrical helical compression spring, and its stiffness is configured to enable the cargo box side plate (9) to stay at any angle within the range of 0°-180°.

5. The new energy commercial vehicle cargo box side panel damping device according to claim 1 is characterized in that: The pressure spring upper fixed support (81) and the pressure spring lower fixed support (84) are respectively located on both sides of the spring (83) for radially limiting the spring (83).

6. The new energy commercial vehicle cargo box side panel damping device according to claim 1 is characterized in that: An anti-dropout clamping spring is provided at the end of the shaft pin (6) to prevent the shaft pin (6) from falling out of the connecting hole.

7. The new energy commercial vehicle cargo box side panel damping device according to claim 1 is characterized in that: The thrust rod (7) and the spring pressure plate (82) are of an integrated structure or are fixed by welding, and the axes of the two coincide with each other.

8. The new energy commercial vehicle cargo box side panel damping device according to claim 1 is characterized in that: The rotating shaft fixing support (4) is connected to the cargo box cross beam by welding or bolts.

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