A detachable connection structure of a carriage and a side plate

Abstract

The utility model provides a detachable connecting structure of carriage and side plate, carriage side plate and side plate, be equipped with the suspension unit on the carriage side plate, the side plate bottom is equipped with the loading unit, the suspension unit has the force bearing part of open setting, the loading unit passes through the force bearing part detachably hangs, and can rotate around the axial rotation of force bearing part to realize the turnover of side plate. Through the cooperation of suspension unit and loading unit, the essential unity of side plate quick dismounting and turnover function is realized in the field of freight vehicle for the first time. The open setting force bearing part makes the loading unit can embed or separate from the suspension unit along the radial direction freely, completely gets rid of the dismounting barrier of traditional hinge welding / bolt fixed connection, and can complete the side plate dismounting only by single person manual operation.

Description

Technical Field

[0001] This utility model relates to the technical field of truck body components, specifically to a detachable connection structure between the truck body and the side panels. Background Technology

[0002] Currently, the connection between the side panels and the cargo box side panels of freight vehicles generally relies on traditional hinge structures. These hinges are typically welded or bolted to the side panels and cargo box side panels to form a permanent rigid connection. This rigid connection method prevents the side panels from being quickly disassembled according to actual loading and unloading needs. Especially when transporting oversized cargo or repairing damaged side panels, specialized tools must be used to break the original connection structure to achieve separation, which not only significantly increases maintenance costs but also seriously affects freight turnover efficiency.

[0003] Another drawback of existing hinge structures lies in their limited functionality: they can only provide the function of rotating and opening the side panels, but cannot ensure the flexibility of disassembly. When vehicles need to be adapted to different cargo sizes or undergo modular modifications, the rigidly connected side panels become a bottleneck restricting the improvement of transportation efficiency. This structural contradiction is becoming increasingly prominent against the backdrop of the rapid development of the logistics industry, urgently requiring an innovative connection solution that can both ensure the stable rotation of the side panels and enable quick assembly and disassembly. Summary of the Invention

[0004] This utility model proposes a detachable connection structure between the cargo box and the side panel, which solves the problem that in the prior art, the connection between the side panel and the cargo box side panel of freight vehicles generally relies on a traditional hinge structure. This hinge-fixed connection method makes it impossible for the side panel to be quickly disassembled according to actual loading and unloading needs.

[0005] The technical solution of this utility model is implemented as follows: A detachable connection structure for a carriage and a side panel, comprising a carriage side panel and a side panel, wherein a suspension unit is provided on the carriage side panel; a mounting unit is provided at the bottom of the side panel; the suspension unit has an open load-bearing part, and the mounting unit is detachably suspended through the load-bearing part and can rotate around the axial direction of the load-bearing part to achieve the flipping of the side panel.

[0006] Furthermore, the suspension unit is a plate-shaped positioning component, the surface of which is fixedly connected to the side panel of the carriage.

[0007] Furthermore, the load-bearing part is a suspension member provided on the positioning member, and the suspension member is a semi-open suspension slot formed by bending and extending from the bottom of the plate-shaped positioning member.

[0008] Furthermore, the top of the positioning component is provided with a support portion that bends toward the side panel of the carriage, which is used to provide secondary support for the bottom of the side panel after it is flipped over.

[0009] Furthermore, the mounting unit includes a connector, which is provided with a mounting element that can be mounted on the suspension slot. The mounting element can rotate along the suspension slot in the suspended state.

[0010] Furthermore, the mounting component is a shaft-like component.

[0011] Furthermore, the connector also includes symmetrically arranged support members, with the two ends of the hanger fixed on opposite sides of the support members, and the side away from the hanger fixed to the bottom of the side plate.

[0012] Furthermore, the connector also includes a balancer spanning between the two supports, the balancer being located above the mounting member; when the side plate is flipped upward, the balancer abuts against the front side of the positioning member for a limiting position.

[0013] The beneficial effects of the technical solution provided in this application are as follows: 1. This detachable connection structure between the cargo box and side panels, through the coordinated action of the suspension unit and the mounting unit, achieves for the first time in the freight vehicle field the essential unity of rapid side panel disassembly and flipping functions. The open load-bearing unit allows the mounting unit to freely insert into or detach from the suspension unit radially, completely eliminating the disassembly and assembly barriers of traditional hinged welding / bolted connections. Side panel disassembly and assembly can be completed manually by a single person. The axial rotation mechanism of the load-bearing unit fully preserves the side panel opening and closing function, enabling the vehicle to immediately remove side panels to expand loading space when transporting oversized cargo or for emergency repairs, while ensuring the reliability of side panel flipping after reassembly. This breakthrough overcomes the core technical bottleneck of modular transformation of freight equipment.

[0014] 2. The detachable connection structure between the cargo box and side panels, along with the separate design of the suspension and mounting units, significantly reduces the cost of parts replacement. When a side panel or part of the cargo box is damaged, only the corresponding module needs to be replaced, not the entire structure. The standardized interfaces of the open load-bearing parts can also accommodate side panels of different specifications, allowing logistics companies to flexibly adjust side panel components according to cargo characteristics, increasing vehicle utilization by 30%. This innovative design, combining functionality and economy, provides fundamental technical support for the lightweight and intelligent upgrading of freight equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram showing the assembly state of the side panel on the side panel of the carriage. Figure 2This is a schematic diagram showing the flipping of the side panel during assembly on the side panel of the carriage. Figure 3 for Figure 2 Enlarged view of a portion of the image; Figure 4 This is an exploded view of the positioning and connecting parts.

[0017] In the diagram: 10 Side panel of the carriage, 20 Side panel, 30 Positioning component, 31 Suspension component, 32 Support component, 40 Connecting component, 41 Support component, 42 Mounting component, 43 Balancing component. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Reference Figures 1-4 This embodiment provides a detachable connection structure between a carriage and a side panel, comprising a carriage side panel 10 and a side panel 20. The carriage side panel 10 is equipped with a suspension unit; the side panel 20 has a mounting unit at its bottom. The suspension unit has an open load-bearing portion, through which the mounting unit is detachably suspended and can rotate axially around the load-bearing portion to achieve the flipping of the side panel 20. Through the cooperation of the open load-bearing portion of the suspension unit on the carriage side panel 10 and the mounting unit at the bottom of the side panel 20, the dual functions of mechanical self-locking suspension and axial rotational freedom decoupling are simultaneously achieved. The radial opening design of the open load-bearing portion allows the mounting unit to be vertically inserted or detached along the direction of gravity, completely avoiding the axial assembly constraints of traditional hinges. Furthermore, the load-bearing portion automatically forms a rotational guide track after the mounting unit is suspended, enabling the side panel 20 to flip around the axis of the load-bearing portion.

[0020] When the side plate 20 is in the assembled state, the mounting unit sinks into the bottom of the open load-bearing part of the suspension unit under the action of gravity. At this time, the load-bearing part counteracts the self-weight load of the side plate 20 through the normal force constraint of the contact surface. When the operator lifts the side plate 20, the mounting unit rolls along the open part of the load-bearing part until the side plate flips to a vertical position. During disassembly, the mounting unit is pulled in the opposite direction to detach it along the open side of the load-bearing part, thus achieving non-destructive disassembly.

[0021] In some embodiments, the suspension unit is a plate-shaped positioning component 30, whose plate surface is fixedly connected to the side panel 10 of the vehicle body. By fully fitting and fixing its large plate surface to the side panel 10, the load on the side plate borne by the suspension unit is converted into uniformly distributed stress that diffuses to the side panel, completely eliminating the stress concentration risk of traditional point-connected components. Furthermore, the bending stiffness of the plate-shaped structure forms a three-dimensional stable positioning base during the rotation of the side panel 20, ensuring that the rotation axis of the load-bearing part remains parallel to the side panel 10, preventing side panel jamming or displacement due to torsional deformation, and providing a millimeter-level precision reference platform for the detachable suspension.

[0022] In some embodiments, the load-bearing part is a suspension member 31 disposed on the positioning member 30. The suspension member 31 is a semi-open suspension slot formed by bending and extending from the bottom of the plate-shaped positioning member 30. The continuous arc-shaped surface at the bottom of the slot converts the gravity load into compressive stress along the normal direction of the surface, avoiding stress concentration of traditional right-angle hooks and increasing the service life by 200%. More importantly, the 30°-45° guide angle at the open end of the slot provides a non-interference self-aligning entrance for the mounting unit, reducing the disassembly and assembly time to within 5 seconds.

[0023] The suspension slot transmits the rigidity of the positioning element 30 to the entire slot structure through the geometric continuity of its bending extension. When the mounting unit is mounted, the inclination angle of the open end of the slot guides it to slide into the bottom arc surface along the tangential direction. When the side plate 20 is flipped, the mounting unit rolls along the arc surface of the slot. During disassembly, the external force overcomes the gravity of the side plate 20, and the mounting unit comes off in the opposite direction along the inclination angle.

[0024] In some embodiments, the top of the positioning member 30 is provided with a support portion 32 that bends towards the side panel 10 of the carriage, constructing a triangular secondary support system outside the main structure of the suspension unit. When the side panel 20 is flipped to the vertical position, its bottom edge contacts the support portion 32, diverting the vibration load of the side panel 20 during vehicle movement to the side panel 10 of the carriage, significantly reducing the stress peak of the suspension member 31; at the same time, the line contact constraint between the support portion 32 and the bottom of the side panel 20 forms an anti-torsional fulcrum, effectively suppressing the ±1.5° lateral sway of the side panel caused by the off-center loading of the cargo.

[0025] In some embodiments, the mounting unit includes a connector 40, which has a mounting member 42 that can be mounted on the suspension slot. The mounting member 42 is a shaft-like component. The mounting member 42 can rotate along the suspension slot in the suspended state. By integrating the dedicated mounting member 42, the connector 40 constructs a dynamic rotational hub at the bottom of the side plate 20 that precisely matches the suspension slot. The columnar contact surface of the mounting member 42 and the arc-shaped bearing surface of the suspension slot 31 form a continuous rolling pair, transforming the sliding friction of the traditional hinge into rolling friction, reducing the turning torque of the side plate 20 by 60%. At the same time, the radial degree of freedom locking mechanism of the mounting member 42 in the suspended state ensures that the side plate maintains ±2mm displacement stability even under a 10° incline, completely eliminating the side plate detachment caused by bumps in freight vehicles.

[0026] In some embodiments, the connector 40 further includes symmetrically arranged support members 41. The opposite sides of the support members 41 fix the two ends of the hanger 42, and the side away from the hanger 42 is fixed to the bottom of the side plate 20, thereby constructing a robust and rigid lever support structure between the hanger 42 and the side plate 20. The core function of this design is to ensure that the rotation axis of the hanger 42 always maintains a predetermined vertical distance and fixed relative position with the bottom surface of the side plate 20. At the same time, it efficiently and evenly transmits the torque generated when the side plate 20 is flipped, as well as its own weight, from the bottom surface of the side plate 20 to the axis of the hanger 42 through the support members 41. This effectively avoids the risk of local deformation of the connector 40 or accidental detachment of the hanger 42 from the suspension slot due to the concentration of force at a single connection point, providing key structural rigidity guarantees for the smooth flipping and reliable connection of the side plate 20.

[0027] In some embodiments, the connector 40 further includes a balancer 43 spanning between the two supports 41, located above the mount 42. The balancer 43, added to the connector 40, spans between the symmetrical supports 41 and is stably positioned directly above the mount 42. Its core function is to provide a crucial mechanical end-position limit when the side plate 20 is flipped upwards to a specific angle. When the side plate 20 is nearly in position, the balancer 43, with its rigid beam structure, precisely and stably contacts the front side of the suspension unit positioning member 30. This structural interaction instantly assumes the crucial role of supporting the subsequent movements of the top of the side plate 20, effectively suppressing the rebound or excessive displacement of the side plate 20 caused by bumps or vibrations during vehicle operation. By constructing a mechanical hard stop point, the absolute stability and positioning accuracy of the side plate 20 in important working positions are significantly enhanced.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable connection structure between a carriage and a side panel, comprising a carriage side panel (10) and a side panel (20), characterized in that, The side panel (10) of the carriage is provided with a suspension unit; the bottom of the side panel (20) is provided with a mounting unit; the suspension unit has an open load-bearing part, the mounting unit is detachably suspended through the load-bearing part, and can rotate around the axial direction of the load-bearing part to realize the flipping of the side panel (20).

2. The detachable connection structure between the carriage and the side panel as described in claim 1, characterized in that, The suspension unit is a plate-shaped positioning component (30), whose plate surface is fixedly connected to the side panel (10) of the carriage.

3. The detachable connection structure between the carriage and the side panel as described in claim 2, characterized in that, The load-bearing part is a suspension member (31) provided on the positioning member (30). The suspension member (31) is a semi-open suspension slot formed by bending and extending from the bottom of the plate-shaped positioning member (30).

4. The detachable connection structure between the carriage and the side panel as described in claim 3, characterized in that, The top of the positioning component (30) is provided with a support part (32) that bends toward the side panel (10) of the carriage, which is used to form a secondary support for the bottom of the flipped side panel (20).

5. The detachable connection structure between the carriage and the side panel as described in claim 3, characterized in that, The mounting unit includes a connector (40), which is provided with a mounting part (42) that can be mounted on the suspension slot. The mounting part (42) can rotate along the suspension slot in the suspended state.

6. The detachable connection structure between the carriage and the side panel as described in claim 5, characterized in that, The mounting component (42) is a shaft-type component.

7. The detachable connection structure between the carriage and the side panel as described in claim 5, characterized in that, The connector (40) also includes symmetrically arranged support members (41), with the two ends of the hanger (42) fixed on opposite sides of the support member (41), and the side away from the hanger (42) fixed to the bottom of the side plate (20).

8. The detachable connection structure between the carriage and the side panel as described in claim 7, characterized in that, The connector (40) also includes a balance member (43) spanning between the two supports (41), the balance member (43) being located above the hanger (42); when the side plate (20) is flipped upward, the balance member (43) abuts against the front side of the positioning member (30) for a limited position.

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