Detachable connecting structure of upright column and side plate

Abstract

The utility model provides a detachable connecting structure of stand and side plate, including stand and the side plate of assembly on the stand after turning over, the side of side plate is equipped with limiting piece, movable lock axle is equipped on the stand, when side plate is in vertical state, the movement path of lock axle is configured to be inserted into the space of limiting piece, to hinder the front and back movement of limiting piece, to make side plate keep vertical locking state. The detachable connecting structure of stand and side plate, through the pure geometric cooperation mechanism of lock axle and limiting piece, completely eliminates the continuous pressure coupling between traditional board buckle and hook. Lock axle only needs to insert limiting piece space to form physical hindering, and there is no rigid pressing force between the two, fundamentally avoids the plastic deformation and fatigue fracture risk of components caused by long-term stress concentration. This pressureless locking characteristic makes the side plate only bear static support force under the vibration working condition, and the component contact area is zero wear.

Description

Technical Field

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

[0002] The conventional connection between the side panels and pillars of current freight vehicles mainly relies on the interlocking of the side panel buckles and the side hooks to achieve locking. This structure has a fundamental flaw: when the side panel buckle is flipped to the engaged position, a continuous rigid pressure is formed between the buckle and the hook—this mutually pressurized mechanical state persists for a long time during vehicle vibration, causing accelerated fatigue of the metal components due to stress concentration. Especially when the hook is subjected to continuous top pressure from the buckle, the contact area between the hook and the buckle is prone to plastic deformation or even fracture, causing the locking function to fail.

[0003] This pressure-coupled structure lacks a stress relief mechanism during long-term service. The rigid contact surfaces of the plate buckle and the hook are constantly under high-load friction, which not only induces component wear and increased gaps, but also causes fretting damage due to repeated vibrations. Ultimately, this manifests as a chain of failures such as hook deformation and plate buckle reset failure, significantly reducing the service life of the connection structure. Utility Model Content

[0004] This utility model proposes a detachable connection structure between the column and the side plate, which solves the problem that in the prior art, the continuous rigid pressure between the railing buckle and the hook easily leads to stress concentration and accelerated fatigue of the metal components.

[0005] The technical solution of this utility model is implemented as follows:

[0006] The detachable connection structure between the column and the side plate includes a column and a side plate that can be mounted on the column after being flipped up. The side plate is provided with a limiting member on its side. The column is provided with a movable locking shaft. When the side plate is in a vertically upright state, the movement path of the locking shaft is configured to be inserted into the space of the limiting member to prevent the limiting member from moving back and forth, thereby keeping the side plate in a vertically locked state.

[0007] Furthermore, the limiting member is a ring-shaped or frame-shaped structural member.

[0008] Furthermore, the column includes a back plate and a grooved panel fixed to the front side of the back plate; an adjustment element is provided between the back plate and the panel to convert the flipping motion into a vertical motion of the driving lock shaft.

[0009] Furthermore, the column panel is provided with a positioning slot; the side of the side plate is provided with a positioning piece; the positioning piece can be fitted into the positioning slot to limit the horizontal displacement of the side plate.

[0010] Furthermore, the panel has retaining edges on both sides of the groove; the side of the side plate has a protective strip; the protective strip overlaps the retaining edge to restrict the side plate from swinging backward.

[0011] Furthermore, the panel is provided with an adjustment port for operating the adjustment mechanism.

[0012] Furthermore, the locking shaft is connected to the adjusting member, which includes a base fixed to the back plate and a handle hinged to the base on one side. A connecting rod is hinged to the end of one side of the handle, and an elastic element is hinged to the end of the connecting rod away from the handle.

[0013] When the handle is flipped downwards, it drives the locking shaft to rise by pulling the elastic element through the connecting rod; when it is flipped upwards, it drives the locking shaft to fall.

[0014] Furthermore, the base is provided with a guide sleeve, and the elastic element and the locking shaft pass through the guide sleeve and slide along the axial direction of the guide sleeve.

[0015] Furthermore, the base has a groove-shaped opening at its bottom, and the handle is hinged to the groove-shaped opening via a pivot.

[0016] The beneficial effects of the technical solution provided in this application are as follows:

[0017] The detachable connection structure between the column and the side plate completely eliminates the continuous pressure coupling between traditional plate buckles and hooks through a purely geometric fit mechanism of the locking shaft and the limiting component. The locking shaft only needs to be inserted into the space of the limiting component to form a physical obstruction; there is no rigid top-pressure force between the two, fundamentally avoiding the risk of plastic deformation and fatigue fracture caused by long-term stress concentration in the component. This pressure-free locking characteristic ensures that the side plate only bears static support force under vibration conditions, with zero wear in the component contact area. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the assembly state of the side plate and column of this utility model;

[0020] Figure 2 This is a schematic diagram of the side plate and column of this utility model in their unassembled state;

[0021] Figure 3 This is a schematic diagram showing the disassembled state of the side plate and column during assembly of this utility model;

[0022] Figure 4 This is a schematic diagram showing the disassembled state of the side plate and column of this utility model before assembly;

[0023] Figure 5 This is a partially enlarged schematic diagram of the assembly of the side plate and column of this utility model;

[0024] Figure 6 This is an exploded view of the column of this utility model.

[0025] In the diagram: 10 Column, 11 Backplate, 12 Adjusting component, 12a Base, 12b Guide sleeve, 12c Handle, 12d Connecting rod, 12e Elastic component, 12f Locking shaft, 13 Panel, 14 Positioning slot, 15 Adjusting port, 16 Edge guard, 20 Side plate, 21 Protective strip, 22 Positioning piece, 23 Limiting component. Detailed Implementation

[0026] 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.

[0027] Conventional side panels and posts are connected solely by panel clips and hooks. Specifically, the side panel has hook-like components on its side, and the panel clips on the post are repositioned by flipping a handle. Once the clip is engaged with the hook, flipping the handle in the opposite direction returns the clip to its original position and secures the hook. However, the biggest drawback of this structure is the mutual force between the clip and the hook; maintaining this engaged state for extended periods can easily lead to damage. Based on the above, this embodiment discloses a detachable connection structure between the post and the side panel, referring to... Figure 1-6 The system includes a column 10 and a side plate 20 that can be flipped and assembled onto the column 10. The side plate 20 has a limiting member 23 on its side. The column 10 has a movable locking shaft 12f. Through the pure geometric interference between the limiting member 23 on the side of the side plate 20 and the vertically movable locking shaft 12f on the column 10, the traditional pressure locking method of plate buckles and hooks is completely replaced: when the side plate 20 is upright, the locking shaft 12f is inserted into the receiving space of the limiting member 23, forming a rigid obstacle to the backward movement of the limiting member 23 only through physical occupation, preventing the side plate 20 from flipping backward and dislodging. This design completely eliminates the continuous stress of mutual compression between the two components, fundamentally avoiding the risk of plastic deformation and fatigue fracture caused by long-term pressure in traditional structures. At the same time, the locking state does not rely on friction self-locking, significantly improving the resistance to vibration and loosening.

[0028] When the operator flips the side panel 20 to a vertical position, the limiting member 23 moves with the side panel 10 to directly above the locking shaft 12f. By driving the locking shaft 12f vertically upwards into the closed space of the limiting member 23, the solid shaft of the locking shaft 12f directly blocks the trajectory path of the limiting member 23 moving forward and backward in the carriage. At this time, the cargo side pressure on the side panel 20 is converted into a static pushing force of the limiting member 23 on the locking shaft 12f, and the locking shaft 12f transmits this force to the frame through the rigid support of the column 10, forming a closed loop of force flow without elastic deformation. When unlocking, the locking shaft 12f is pulled vertically downwards to release it from the spatial constraint of the limiting member 23, and the side panel 20 returns to its free flipping state.

[0029] In some embodiments, the limiting member 23 is an annular or frame-shaped structure. Its closed geometry ensures that after the locking shaft 12f is inserted vertically upwards, it is surrounded and constrained in the entire circumference by the annular inner wall or the frame-shaped side wall. This closed enclosure ensures that the locking shaft 12f achieves bidirectional rigid locking of the limiting member 23 in the front-rear direction of the carriage, and eliminates local stress concentration by evenly distributing the static jacking force on the locking shaft, so that the vertical locking state of the side plate 20 remains free of loosening under severe vibration conditions.

[0030] In some embodiments, the column 10 includes a back plate 11 and a grooved panel 13 fixed to the front side of the back plate 11; an adjustment member 12 is provided between the back plate 11 and the panel 13 to convert the flipping motion into a vertical motion of the locking shaft 12f. By constructing the column 10 as a composite of the back plate 11 and the grooved panel 13, the enclosed space formed by the two provides an impact-resistant, rigid environment for the adjustment member 12; at the same time, the U-shaped cross-section of the grooved panel 13 allows it to bear the assembly load of the side plate 20 and constrain the movement trajectory of the adjustment member 12 through its own structural rigidity. The core value of the adjustment member 12 integrated between the back plate 11 and the panel 13 lies in converting the flipping motion of the handle applied by the operator into a precise vertical displacement of the locking shaft 12f, so that the action of the locking shaft inserting / disengaging from the limiting member 23 is stably executed within the enclosed space, completely avoiding mechanical jamming caused by external impacts.

[0031] In some embodiments, the panel 13 of the column 10 has a positioning slot 14; the side of the side plate 20 has a positioning piece 22; the positioning piece 22 can be fitted into the positioning slot 14 to limit the horizontal displacement of the side plate 20. Through the geometric fit between the positioning piece 22 on the side of the side plate 20 and the positioning slot 14 on the column panel 13, the precise horizontal positioning and rigid constraint of the side plate 20 are completed before the locking shaft 12f is inserted into the limiting member 23 to achieve vertical locking. This structure restricts the side plate 20 from lateral movement the moment it is vertically erected, eliminates the off-center wear caused by horizontal displacement of the locking shaft 12f and the limiting member 23, and provides centering guidance for the vertical insertion of the locking shaft 12f, ensuring zero-deviation execution of the locking action.

[0032] In some embodiments, the panel 13 has side guards 16 on both sides of the groove; the side of the side plate 20 has a protective strip 21; the protective strip 21 overlaps the side guards 16 to restrict the side plate 20 from swinging backward. When the side plate 20 is flipped to a vertical position, the protective strip 21 on its side will naturally fall into place and overlap the side guards 16 of the panel 13. The side guards 16, as rigid support points, directly block the backward displacement path of the protective strip 21 through physical contact, thereby converting the backward force that the side plate 20 may be subjected to into a static support force that is transmitted to the main structure of the column 10. This pure geometric interference mechanism does not rely on elastic deformation or frictional self-locking, but relies on the overlap surface of the side guards 16 and the protective strip 21 to form a passive limit, effectively suppressing backward swinging. It works in conjunction with the locking function of the locking shaft 12f and the limiting member 23 to achieve the side plate 20's secure fixation without loosening.

[0033] In some embodiments, the panel 13 is provided with an adjustment port 15 for the adjustment member 12 to operate, so that the user can directly access and operate the handle 12c and other components of the adjustment member 12 from the outside without disassembling the panel 13 or the back plate 11.

[0034] like Figure 4-6 As shown, the locking shaft 12f is connected to the adjusting member 12. The adjusting member 12 includes a base 12a fixed to the back plate 11 and a handle 12c hinged to the base 12a on one side. A connecting rod 12d is hinged to one end of the handle 12c, and an elastic member 12e is hinged to the end of the connecting rod 12d away from the handle 12c. When the operator flips the handle 12c downward, the rotational movement of the handle 12c is transmitted through the connecting rod 12d as an upward pushing force on the elastic member 12e. The elastic member 12e then compresses to generate thrust and drives the locking shaft 12f to rise vertically and insert into the space of the limiting member 23 to form a physical obstruction. Conversely, when the handle 12c is flipped upward, the connecting rod 12d moves in the opposite direction, pulling and dragging the elastic member 12e. Under the action of the tension, the elastic member 12e drives the locking shaft 12f to descend and disengage from the limiting member 23. This process cleverly combines the lever principle with elastic deformation to achieve efficient conversion of rotational motion into linear displacement in a purely mechanical way, ensuring that the lifting trajectory of the locking shaft 12f is linear and precise, and that the transmission of operating force is lag-free.

[0035] In the detachable connection structure between the column 10 and the side plate 20, the elastic element 12e is a core buffer and power transmission component. It is essentially an elastic element with the ability to stretch and deform. In specific implementations, it is usually, but not limited to, a tension spring, used to efficiently convert the flipping action of the handle 12c into the precise vertical displacement of the locking shaft 12f.

[0036] In some embodiments, a guide sleeve 12b is provided on the base 12a, and the elastic element 12e and the locking shaft 12f pass through the guide sleeve 12b, with the locking shaft 12f sliding axially along the guide sleeve 12b. The guide sleeve 12b provides rigid trajectory constraints for the lifting and lowering movement of the locking shaft 12f. This design completely eliminates the radial offset or angular tilt that may occur when the locking shaft 12f is under force, ensuring that the locking shaft 12f always accurately inserts into or disengages from the mating space of the limiting element 23 in the vertical direction, thus fundamentally avoiding jamming or locking failure caused by deviation in the movement trajectory. At the same time, the inner wall of the guide sleeve 12b forms a sliding pair with the locking shaft 12f, significantly reducing frictional loss and extending the service life of the mechanism.

[0037] Figure 6 In this design, the base 12a has a slotted opening at its bottom (not marked in the figure), and the handle 12c is hinged to this slotted opening via a pivot. The U-shaped profile of the slotted opening forms a bidirectional enclosure around the pivot on the handle 12c through two side walls, preventing the handle 12c from shifting left or right throughout its movement. For example, when the handle 12c is pressed down, the pivot rotates close to the bottom of the slot, and the side walls of the slot forcibly restrict the handle 12c to move only within the slot; conversely, when the handle 12c is lifted up, the upper edge of the slot prevents the handle 12c from tilting excessively backward. This geometrically closed hinge mechanism transmits the operating torque to the connecting rod 12d without loss.

[0038] 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 column and a side plate, comprising a column (10) and a side plate (20) that can be flipped and assembled onto the column (10), characterized in that, The side of the side plate (20) is provided with a limiting member (23); the column (10) is provided with a movable locking shaft (12f); when the side plate (20) is in a vertically upright state, the movement path of the locking shaft (12f) is configured to be inserted into the space of the limiting member (23) to prevent the limiting member (23) from moving back and forth, thereby keeping the side plate (20) in a vertically locked state.

2. The detachable connection structure as described in claim 1, characterized in that, The limiting component (23) is a ring-shaped or frame-shaped structural component.

3. The detachable connection structure as described in claim 1, characterized in that, The column (10) includes a back plate (11) and a grooved panel (13) fixed to the front side of the back plate (11); an adjustment member (12) is provided between the back plate (11) and the panel (13) to convert the flipping motion into a vertical motion of the driving lock shaft (12f).

4. The detachable connection structure as described in claim 3, characterized in that, The column (10) has a positioning slot (14) on its panel (13); the side of the side plate (20) has a positioning piece (22); the positioning piece (22) can be fitted into the positioning slot (14) to limit the horizontal displacement of the side plate (20).

5. The detachable connection structure as described in claim 3, characterized in that, The panel (13) has side guards (16) on both sides of the groove; the side of the side plate (20) has a protective strip (21); the protective strip (21) overlaps the side guards (16) to restrict the side plate (20) from swinging backward.

6. The detachable connection structure as described in claim 3, characterized in that, The panel (13) has an adjustment port (15) for the adjustment member (12) to operate.

7. The detachable connection structure as described in claim 3, characterized in that, The locking shaft (12f) is connected to the adjusting member (12), which includes a base (12a) fixed on the back plate (11) and a handle (12c) hinged on one side of the base (12a). A connecting rod (12d) is hinged to one end of the handle (12c), and an elastic element (12e) is hinged to the end of the connecting rod (12d) away from the handle (12c). When the handle (12c) is flipped downwards, the elastic element (12e) is pulled by the connecting rod (12d) to drive the locking shaft (12f) to rise, and when it is flipped upwards, the locking shaft (12f) is driven to fall.

8. The detachable connection structure as described in claim 7, characterized in that, The base (12a) is provided with a guide sleeve (12b), the elastic element (12e) and the locking shaft (12f) are inserted inside the guide sleeve (12b) and the locking shaft (12f) slides along the axial direction of the guide sleeve (12b).

9. The detachable connection structure as described in claim 7, characterized in that, The base (12a) has a slotted opening at the bottom, and the handle (12c) is hinged to the slotted opening via a pivot.

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