A vehicle storage box and a design method thereof

Abstract

This invention relates to the field of storage box technology, and more particularly to a vehicle-mounted storage box and its design method. The vehicle-mounted storage box includes a storage box base assembly, a storage box door assembly, a front linkage assembly, a rear linkage assembly, an opening torsion spring, and a damping assembly. By designing a parallelogram linkage mechanism, the storage box door assembly opens diagonally upwards and downwards, replacing the traditional horizontal rotation method. This allows for a deeper box design, significantly increasing storage space and reducing the risk of items falling out. The diagonal movement trajectory avoids hitting the front passenger's legs during opening, while also allowing the storage box to be designed at a height suitable for a human sitting posture, eliminating the need to bend over to retrieve items. The opening torsion spring provides automatic opening force. The damping assembly buffers the opening movement, preventing the storage box from suddenly opening and causing items to scatter or injuring people. This invention solves the technical problems of existing vehicle-mounted storage boxes being shallow, having small storage space, easily hitting the front passenger's legs during opening, and being inconvenient for retrieving items.

Description

Technical Field

[0001] This invention relates to the field of storage box technology, and in particular to a vehicle-mounted storage box and its design method. Background Technology

[0002] As an important part of the car interior, the glove box is mainly used to store the personal belongings of the driver and passengers.

[0003] Existing vehicle storage compartments generally employ a horizontal rotating opening structure, meaning the storage compartment door rotates outward around a horizontal pivot at the bottom to open. This structure has revealed several inherent drawbacks over long-term use: First, due to the limited space in the passenger compartment, the turning radius of the storage box door is restricted, and the design height and depth of the box are strictly limited, resulting in a small overall storage space that cannot meet the needs of users to store larger items. At the same time, the shallow box makes it easy for items to fall off due to bumps during vehicle operation, affecting the user experience.

[0004] Secondly, in order to ensure the convenience of taking out and putting in items, a large opening angle needs to be designed. However, an excessively large opening angle will cause the storage box door to extend excessively towards the passenger compartment during the opening process, which is very likely to hit the legs of the passenger, causing discomfort or even safety hazards. If the opening angle is reduced to avoid hitting the legs, the user will have to bend over and lean out to reach the inside of the box, which does not meet the requirements of ergonomics and is likely to cause fatigue after long-term use.

[0005] In addition, the horizontal rotation opening mechanism means that the storage box is usually installed at a low position, which further exacerbates the inconvenience of taking out and putting in items, especially for taller users, who find it more strenuous to bend over to retrieve items.

[0006] Therefore, existing in-vehicle storage boxes have disadvantages such as shallow box body, small storage space, easy to bump into the legs of the front passenger when opening, and inconvenience in taking out and putting in items. Summary of the Invention

[0007] The purpose of this invention is to provide a vehicle storage box and its design method, which can solve the technical problems of existing vehicle storage boxes having shallow bodies, small storage space, easy to bump into the legs of the front passenger during opening, and inconvenience in taking out and putting in items.

[0008] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a vehicle storage box, including a storage box base assembly, a storage box door assembly, a front linkage assembly, a rear linkage assembly, an opening torsion spring, and a damping assembly; The storage box base assembly has a hollow internal structure and is externally fixed to the vehicle body; The storage box door assembly is movably disposed within the cavity of the storage box base assembly; The two ends of the front linkage assembly are respectively hinged to the front ends of the storage box base assembly and the storage box door assembly, and the two ends of the rear linkage assembly are respectively hinged to the rear ends of the storage box base assembly and the storage box door assembly; the front linkage assembly and the rear linkage assembly are arranged in parallel, and together with the storage box base assembly and the storage box door assembly, they form a parallelogram linkage mechanism; An opening torsion spring is located at the hinge between the rear linkage assembly and the storage box base assembly, providing an automatic opening force for the storage box; The damping assembly is connected between the storage box door assembly and the front linkage assembly to buffer the opening movement of the storage box, allowing it to open smoothly.

[0009] Technical benefits: The parallelogram linkage mechanism allows the storage box door assembly to open diagonally upwards and downwards, replacing the traditional horizontal rotation method. This allows for a deeper design of the storage box, significantly increasing storage space and preventing items from falling out. The diagonal movement trajectory avoids hitting the front passenger's legs during opening and allows the storage box to be designed at a height that matches the human sitting posture, eliminating the need to bend over to retrieve items. The opening torsion spring provides automatic opening force, improving ease of use. The damping assembly buffers the opening movement, preventing the storage box from suddenly popping open and causing items to scatter or people to be injured. The front and rear links remain parallel and of equal length throughout rotation. The parallelogram linkage mechanism ensures that the storage compartment body translates relative to the storage compartment base assembly without tilting. This prevents items inside the compartment from sliding towards the opening side due to the compartment's tilt during opening, and this kinematic constraint also provides a basis for using a deeper compartment. The front and rear links rotate simultaneously around their respective base pivots, giving the storage compartment body both downward and outward components, resulting in an "oblique" opening trajectory. Compared to the traditional single-hinge direct horizontal opening scheme, this reduces the space swept by the door on the passenger side when achieving the same opening degree. The opening torsion spring applies a torque in the opening direction to the rear link, which, together with the compartment's own weight, drives the opening action. The damping assembly, through its damping mounting pin on the front link side and damping mounting shaft on the compartment side, simultaneously constrains the relative movement of the front link and the storage compartment body, making the entire opening process smooth and controlled.

[0010] Furthermore, the four hinge points of the parallelogram linkage mechanism are: the front fixed shaft pin and the rear fixed shaft pin installed at the front and rear ends of the bottom of the storage box base assembly, and the front movable shaft pin and the rear movable shaft pin installed at the front and rear ends of the upper part of the storage box door assembly. The distance between the front movable pin and the front fixed pin is equal to the distance between the rear movable pin and the rear fixed pin, and the distance between the front fixed pin and the rear fixed pin is equal to the distance between the front movable pin and the rear movable pin.

[0011] Technical benefits: Precise dimensional proportions ensure that the linkage mechanism moves strictly along a parallelogram trajectory, keeping the storage box door assembly stable throughout the opening process without tilting or wobbling, thus improving the smoothness and reliability of the movement.

[0012] Furthermore, the front link assembly includes a transversely arranged front link and two longitudinally parallel side links. The two ends of the front link are respectively connected to the two side links, and the two side links are respectively provided with mating holes for hinged connection with the front movable shaft pin and the front fixed shaft pin.

[0013] Furthermore, the rear link assembly includes two longitudinally parallel rear links, a limiting block disposed at the lower end of the rear links, and mating holes at both ends of the two rear links respectively for hinged engagement with the rear movable shaft pin and the rear fixed shaft pin. The rear fixed shaft pin is connected to the limiting block by a belt.

[0014] Furthermore, the storage box base assembly is provided with an arc-shaped limiting groove, and the limiting block is disposed in the arc-shaped limiting groove.

[0015] Furthermore, it also includes a latch assembly, which adopts a double-latch synchronous structure, comprising a left latch, a right latch, a latch connecting block, a latch bracket, and a latch return spring. The latch connecting block is mounted on the latch bracket via a hole-and-pin configuration, and the pin on the latch bracket has an anti-disengagement structure. Square holes are provided on both sides of the latch bracket to limit the movement direction of the latch. The left and right latches pass through these square holes and are hinged to the latch connecting block, ensuring synchronous extension and retraction. The latch return spring connects the latch to the latch bracket, providing a return force for the latch.

[0016] Technical advantages: The double-latch synchronous structure ensures that the left and right latches extend and retract synchronously through the latch connecting block, and both sides are subjected to force simultaneously when locking, resulting in higher locking reliability; the square hole on the latch bracket precisely limits the movement direction of the latch, preventing the latch from deflecting; the latch return spring provides a stable return force, ensuring that the latch automatically extends out of the lock hole after the unlocking force is lost.

[0017] Furthermore, the storage box base assembly is also provided with a guide surface, and the ends of the left and right latches are provided with latch guide slopes. The latch guide slopes push against the guide surface during the process of the storage box door assembly returning to the closed position.

[0018] Technical effect: The interaction between the guide slope of the latch and the guide surface on the storage box base assembly decomposes the closing force acting on the door during the closing process into a component force that causes the latch to retract inward, so that the latch automatically avoids the edge of the lock hole during the closing process; when the latch moves to the lock hole position, the component force disappears, and the latch immediately pops out under the action of the latch return spring, thereby realizing the continuous action of closing and locking without manually pressing the button.

[0019] Furthermore, it also includes a button assembly, which includes a button pressure plate, a button bracket, a button return spring, a button base, a transmission gear, a push rod, and a button cover plate; The button plate is snap-fitted onto the button bracket; The button bracket is installed in the vertical sliding groove of the button base, the button reset spring is installed at the bottom of the button bracket, and the button bracket is provided with an anti-dislodgement snap-fit ​​structure; The transmission gear is installed in the rotating groove of the button base, and one side of the gear meshes with the rack on the button bracket; The push rod is installed in the transverse sliding groove of the button base, and its rack meshes with the gear on the other side of the transmission gear; The button cover is snapped onto the button base and is provided with a limiting structure to restrict the axial movement of the transmission gear; The button base is fastened to the storage box base assembly by screws, and the push rod corresponds to the right latch position of the latch assembly.

[0020] Technical Benefits: The gear and rack transmission mechanism converts the vertical pressing motion of the button into the lateral pushing motion of the push rod, resulting in smooth transmission and good force amplification. Users only need a small pressing force to unlock. The button return spring provides an automatic reset function, ensuring that all components automatically return to their initial positions after the button is released. The anti-dislodgement snap-fit ​​structure and axial limiting structure ensure the assembly reliability of each moving part and prevent it from falling off during use. The button assembly uses a gear and rack transmission mechanism, including a button pressure plate, button bracket, button return spring, button base, transmission gear, push rod, and button cover. The button pressure plate is snap-fitted onto the button bracket, which can move along a vertical sliding groove on the button base. A return spring is installed at its bottom. The transmission gear is installed in a rotating groove in the button base and meshes with the rack on the button bracket and the push rod, converting the vertical pressing motion into a lateral pushing motion. The push rod corresponds to the right locking tongue position, unlocking is achieved by pushing the right locking tongue.

[0021] Furthermore, the damping assembly is provided with a damping assembly shaft and a damping assembly pin; the damping assembly shaft passes through the damping assembly hole on the storage box body of the storage box assembly to achieve a fixed connection, and the damping assembly pin is inserted into the damping assembly hole on the upper connecting rod of the upper connecting rod assembly to achieve a connection.

[0022] Technical effect: The damping assembly is connected to the box body and the upper connecting rod at both ends, respectively. It generates a continuous damping force during the movement of the storage box, which effectively counteracts the elastic force of the opening torsion spring and the impact of the weight of the box, making the opening process of the storage box smooth and even, and improving the user experience.

[0023] Furthermore, the storage box base assembly is provided with two opening stop ribs on the front and rear sides respectively. The two opening stop ribs are used to limit the maximum rotation angle of the front link assembly and the rear link assembly respectively.

[0024] Technical Effects: The opening stop rib precisely limits the rotation angle of the connecting rod, allowing the storage box to be stably suspended at the preset maximum opening position, facilitating user access to items and preventing damage to the mechanism due to excessive rotation of the connecting rod. The storage box base assembly is equipped with an opening stop rib to limit the maximum rotation angle of the connecting rod, ensuring the storage box is stably suspended at the preset position. A buffer block is installed on the storage box body, which mates with the buffer block mating surface on the base assembly, providing cushioning and limiting effects when closed.

[0025] Furthermore, a buffer block is installed on the storage box body of the storage box door assembly, and a buffer block mating surface that cooperates with the buffer block is provided on the storage box base assembly.

[0026] Technical effect: The buffer block and the buffer block mating surface cooperate to buffer the impact when the storage box is closed, absorb the closing impact force, avoid abnormal noise, and limit the closing stroke of the storage box to ensure accurate alignment of the lock tongue and the lock hole.

[0027] Another aspect of the present invention provides a design method for the above-mentioned vehicle storage box, comprising the following steps: S1 first determines the installation height and maximum opening angle of the storage box based on the space dimensions and ergonomic requirements of the vehicle's passenger cabin; S2 then designs the position of each hinge point and the length of the link of the parallelogram linkage mechanism according to the determined parameters, so that the movement trajectory of the storage box door avoids the leg area of ​​the passenger. S3 then designs the depth and internal structure of the storage box according to the volume requirements; S4 then matches the spring force parameters of the opening torsion spring and the damping coefficient of the damping assembly according to the weight of the storage box and the opening speed requirements, so that the opening process is smooth. The final design of the S5 lock tongue assembly and button assembly ensures reliable locking and moderate unlocking force.

[0028] Technical Effects: By employing a step-by-step design approach, multiple design elements such as space constraints, ergonomics, motion trajectory, performance parameters, and structural reliability are organically combined to ensure that the final product simultaneously meets the requirements of large storage space, safe opening, ease of use, and stable performance. Steps S1 and S2 pair the positions of the two fixed shaft pins on the base and the lengths of the two connecting rods as independent design variables, allowing the four-bar linkage to be tuned into a parallelogram configuration under different installation spaces, preserving the kinematic characteristic of "box translational opening." Step S3 externalizes the opening angle limitation issue into the design problem of the stop rib position on the base, enabling precise control of the opening angle during the design phase. Steps S4 and S5 configure the opening power and opening damping independently, avoiding overshoot or under-opening force caused by improper coupling between the two.

[0029] The beneficial effects of this invention are: The present invention provides a vehicle storage box and its design method, which uses a parallelogram linkage mechanism to realize the oblique upward and downward opening of the storage box door, replacing the traditional horizontal rotation method. This allows the depth of the storage box to be significantly increased, effectively expanding the storage space, and making it less likely for items to fall out during vehicle operation.

[0030] The angled opening trajectory prevents the storage box door from hitting the front passenger's legs during opening, and at the same time, the installation height of the storage box can be designed to be more in line with the human sitting posture, so users do not need to bend over to take out or put in items, greatly improving the convenience of use.

[0031] The opening angle of the in-vehicle storage box is adjustable, making it convenient to take out and put in items, and it is less likely to hit the legs of the passenger in the front seat.

[0032] By coordinating the torsion spring and damping assembly, the storage box opens automatically and smoothly, which not only improves the user experience but also prevents the safety hazards caused by sudden opening.

[0033] The button assembly, which employs a synchronous double-locking tongue structure and a gear and rack drive, ensures the reliability of locking and the smoothness of unlocking operation.

[0034] This invention can solve the technical problems of existing vehicle storage boxes being shallow, having small storage space, and being inconvenient to access items because they are easy to bump into the legs of the passenger when opened. Attached Figure Description

[0035] Figure 1 This is a three-dimensional schematic diagram of the vehicle-mounted storage box of the present invention.

[0036] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0037] Figure 3 This is a three-dimensional schematic diagram of the front connecting rod assembly.

[0038] Figure 4 This is a 3D schematic diagram of the storage box door assembly.

[0039] Figure 5 This is a three-dimensional schematic diagram of the rear connecting rod assembly.

[0040] Figure 6 This is a three-dimensional schematic diagram of the latch assembly.

[0041] Figure 7 This is a three-dimensional schematic diagram of the button assembly.

[0042] Figure 8 This is a plan view of the button assembly.

[0043] Figure 9 for Figure 8 Cross-sectional view at point BB.

[0044] Figure 10 This is a three-dimensional schematic diagram of the storage box base assembly.

[0045] Figure 11 This is a three-dimensional schematic diagram of the damping assembly.

[0046] Figure 12 This is a plan view of the vehicle-mounted storage box of the present invention.

[0047] Figure 13 for Figure 12 Cross-sectional view of the central storage box at point AA when it is closed.

[0048] Figure 14 for Figure 12 Cross-sectional view of the central storage box at point AA with the box open.

[0049] Figure 15 for Figure 12 Cross-sectional view of point AA during the opening of the central storage box.

[0050] Figure 16 This is a rendering of the opening and closing process of the storage box.

[0051] Explanation of reference numerals in the attached figures: 1. Storage box base assembly; 2. Damping assembly; 3. Opening torsion spring; 30. Storage box door assembly; 31. Front linkage assembly; 32. Rear linkage assembly; 33. Button assembly; 34. Locking tongue assembly; 1. Storage box base assembly: 101. Lock hole, 102. Guide surface, 103. Opening stop rib, 104. Buffer block mating surface; 2. Damping assembly: damping assembly shaft 2b, damping assembly pin 2a; 30. Storage box door assembly: 10. Storage box body, 11. Storage box outer panel, 13. Buffer block, box body shaft hole 3a, damping assembly hole b; 4. Rear fixed shaft pin, 24. Rear movable shaft pin, 6. Front movable shaft pin, 7. Front fixed shaft pin; 31. Front link assembly: 8. Front link, 81. Side link, damping mounting hole a; 32. Rear connecting rod assembly: 9. Rear connecting rod, 321. Rear movable shaft pin mating hole, 322. Rear fixed shaft pin mating hole; 33. Button assembly: 5. Button pressure plate, 18. Button bracket, 19. Button return spring, 20. Button base, 21. Transmission gear, 22. Push rod, 23. Button cover plate; 34. Locking tongue assembly: 12. Left locking tongue, 14. Locking tongue connecting block, 15. Right locking tongue, 16. Locking tongue bracket, 17. Locking tongue return spring, 341. Locking tongue guide slope. Detailed Implementation

[0052] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and not for limiting the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0053] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0054] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0055] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of the invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0056] This invention relates to a vehicle-mounted storage box and its design method. The vehicle-mounted storage box includes a storage box base assembly, a storage box door assembly, a front linkage assembly, a rear linkage assembly, an opening torsion spring, and a damping assembly. A parallelogram linkage mechanism is used to realize the oblique upward and downward opening of the storage box door, replacing the traditional horizontal rotation method. This significantly increases the depth of the storage box body, effectively expands the storage space, and makes it less likely for items to fall out during vehicle operation. The parallelogram linkage mechanism allows the storage compartment to translate relative to the storage compartment base assembly without flipping over. This prevents items inside the compartment from sliding towards the opening side due to the compartment tilting during opening, and this kinematic constraint also provides a basis for using a deeper compartment. The front and rear links rotate simultaneously around their respective base pivots, giving the storage compartment movement both downward and outward components, i.e., an "oblique" opening trajectory. Compared to the traditional single-hinge direct horizontal opening scheme, this reduces the space swept by the door on the passenger side when achieving the same operating opening degree. The opening torsion spring applies a torque in the opening direction to the rear link, which, together with the compartment's own weight, drives the opening action. The damping assembly, through its damping mounting pin on the front link side and the damping mounting shaft on the compartment side, simultaneously constrains the relative movement of the front link and the storage compartment, making the entire opening process smooth and controlled.

[0057] The present invention provides a vehicle storage box, including a storage box base assembly 1, a storage box door assembly 30, a front linkage assembly 31, a rear linkage assembly 32, an opening torsion spring 3, and a damping assembly 2; The storage box base assembly 1 has an internal cavity structure and is externally fixed to the vehicle body; The storage box door assembly 30 is movably disposed within the cavity of the storage box base assembly 1; The two ends of the front connecting rod assembly 31 are respectively hinged to the front end of the storage box base assembly 1 and the storage box door assembly 30, and the two ends of the rear connecting rod assembly 32 are respectively hinged to the rear end of the storage box base assembly 1 and the storage box door assembly 30; the front connecting rod assembly 31 and the rear connecting rod assembly 32 are arranged in parallel, and together with the storage box base assembly 1 and the storage box door assembly 30, they form a parallelogram connecting mechanism; The opening torsion spring 3 is located at the hinge between the rear connecting rod assembly 32 and the storage box base assembly 1, and is used to provide the opening force of the storage box; The damping assembly 2 is connected between the storage box door assembly 30 and the front linkage assembly 31 to buffer the opening movement of the storage box.

[0058] The four hinge points of the parallelogram linkage mechanism are: the front fixed pin 7 and the rear fixed pin 4 installed at the front and rear ends of the bottom of the storage box base assembly 1, and the front movable pin 6 and the rear movable pin 24 installed at the front and rear ends of the upper part of the storage box door assembly 30; the distance between the front movable pin 6 and the front fixed pin 7 is equal to the distance between the rear movable pin 24 and the rear fixed pin 4, and the distance between the front fixed pin 7 and the rear fixed pin 4 is equal to the distance between the front movable pin 6 and the rear movable pin 24.

[0059] The present invention also provides a design method for the above-mentioned vehicle storage box, comprising the following steps: S1: Determine the installation height and maximum opening angle of the storage box based on the space dimensions and ergonomic requirements of the vehicle's passenger compartment; S2: Based on the determined installation height and maximum opening angle, design the position of each hinge point and the length of the linkage of the parallelogram linkage mechanism so that the movement trajectory of the storage box door assembly avoids the leg area of ​​the passenger. S3: Design the depth and internal structure of the storage box according to its volume requirements; S4: Based on the weight of the storage box and the opening speed requirements, match the spring force parameters of the opening torsion spring and the damping coefficient of the damping assembly to make the opening process smooth. S5: The design of the bolt assembly and button assembly ensures reliable locking and moderate unlocking force.

[0060] It should be understood that the specific order or hierarchy of steps in the process disclosed in this invention is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process may be rearranged without departing from the scope of this disclosure. The appended method claims provide elements of various steps in an exemplary order and are not intended to limit the specific order or hierarchy described.

[0061] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0062] like Figure 1 , 2 As shown, the present invention provides a vehicle storage box, comprising: The buffer block 13 is installed on the storage box body 10.

[0063] The latch connecting block 14 is mounted on the latch bracket 16 via a hole-and-pin fitting. The pin on the latch bracket 16 has an anti-disengagement structure.

[0064] The latch bracket 16 has square holes on both sides for limiting the movement. The left latch 12 and the right latch 15 pass through the left and right square holes respectively, and are installed on the latch connecting block 14 by means of a hole and a pivot pin. The latch bracket 16 is fixed to the storage box body 10 with screws.

[0065] The latch return spring 17 connects the latch and the latch bracket 16, applying a pulling force to the latch to extend to both sides.

[0066] The outer panel 11 of the storage box is installed on the storage box body 10, and the storage box locking tongue 12 is hidden in the middle.

[0067] The rear connecting rod 9 is mounted on the rear movable shaft pin 24 of the storage box body 10 through the mating hole of the rear movable shaft pin 24; the shaft pin mating hole I rotates through the rear fixed shaft pin 4 mounted on the storage box base assembly 1.

[0068] The opening torsion spring 3 is fitted onto the rotating pin I4, with one end fixed to the storage box base assembly 1 and the other end fixed to the rear connecting rod 9, applying an opening force to the storage box.

[0069] The front connecting rod 8 is mounted on the housing shaft hole 3a via the front movable shaft pin 6; and on the storage box base assembly 1 via the front fixed shaft pin 7.

[0070] Damping assembly 2 assembly: The damping assembly shaft 2b is installed on the storage box body 10 through the damping assembly hole b, and is connected to the front connecting rod 8 through the damping assembly pin 2a and the damping assembly hole a on the front connecting rod 8.

[0071] The button plate 5 is installed on the button bracket 18 by snap-fit.

[0072] The button bracket 18 is installed in the sliding groove of the button base 20. A button reset spring 19 is installed at the bottom of the button bracket 18. The button bracket 18 is provided with an anti-dislodgement snap-fit ​​structure.

[0073] The transmission gear 21 is installed in the rotating groove of the button base 20, and the gear on one side of the transmission gear 21 meshes with the rack on the button bracket 18.

[0074] The button cover 23 is snapped onto the button base 20 and is designed with a limit structure to restrict the transmission gear 21 from rotating along the axis in the rotating groove.

[0075] The push rod 22 is installed in the sliding groove of the button base 20, and the rack on the push rod 22 meshes with the gear on the transmission gear 21.

[0076] The button base 20 is fastened to the storage box base assembly 1 by screws, and the push rod 22 engages with the left locking tongue 15.

[0077] I. Overall Structure The vehicle storage box provided by this invention mainly consists of a storage box base assembly 1, a storage box door assembly 30, a front linkage assembly 31, a rear linkage assembly 32, an opening torsion spring 3, a damping assembly 2, and a locking mechanism. The storage box base assembly 1 is fixedly mounted on the vehicle's dashboard, serving as the mounting base for the entire storage box. The storage box door assembly 30 is connected to the storage box base assembly 1 via the front linkage assembly 31 and the rear linkage assembly 32, forming a parallelogram linkage mechanism that enables diagonal opening upwards and downwards. The opening torsion spring 3 and the damping assembly 2 provide the opening force and buffer the opening movement, respectively. The locking mechanism locks the storage box in the closed state to prevent accidental opening during vehicle operation.

[0078] II. Assembly Relationship of Components 1. Storage box door assembly, such as Figure 4 As shown; A buffer block 13 is installed on the upper edge of the storage box body 10. It is used to contact the buffer block mating surface on the storage box base assembly 1 when the storage box is closed, so as to play a role in buffering and limiting. The latch assembly 34 is fixedly installed on the inner side wall of the storage box body 10, and the outer panel 11 of the storage box is installed on the outer side of the storage box body 10, hiding the latch assembly 34 between the two, which improves the neatness of the appearance.

[0079] 2. Locking tongue assembly, such as Figure 6 As shown; The latch connecting block 14 is mounted on the latch bracket 16 via a hole-and-pin configuration. The pin on the latch bracket 16 has an anti-disengagement structure to prevent the latch connecting block 14 from falling off during movement. Square holes with limiting functions are provided on both sides of the latch bracket 16. The left latch 12 and right latch 15 pass through these square holes respectively, and their middle portions are hinged to the latch connecting block 14 via a hole-and-pin configuration, allowing the left latch 12 and right latch 15 to retract inward or extend outward synchronously. A latch return spring 17 is connected between the latch and the latch bracket 16, used to apply a pulling force to the latch to extend to both sides, keeping the latch in its extended state in its natural state. After assembly, the latch bracket 16 is fixed to the inner wall of the storage box body 10 with screws. Two latch guide ramps 341 are also provided at both ends of the latch assembly 34.

[0080] 3. Linkage mechanism assembly, such as Figure 3 , 5 As shown; The linkage mechanism includes a front linkage assembly 31 and a rear linkage assembly 32. The front linkage assembly 31 includes a transversely arranged front linkage 8 and two longitudinally parallel side linkages 81. Both ends of the front linkage 8 are connected to the two side linkages 81, and both ends of the two side linkages 81 are respectively provided with mating holes for hinged engagement with a front movable pin 6 and a front fixed pin 7. The rear linkage assembly 32 includes two longitudinally parallel rear linkages 9 and a limiting block located at the lower end of the rear linkages 9. Both ends of the two rear linkages 9 are respectively provided with mating holes for hinged engagement with a rear movable pin 24 and a rear fixed pin 4, namely a rear movable pin mating hole 321 and a rear fixed pin mating hole 322. The rear fixed pin 4 is connected to the limiting block via a belt.

[0081] The upper end of the rear connecting rod 9 is mounted on the rear movable shaft pin of the storage box body 10 through the rear movable shaft pin mating hole, and the lower end is hinged to the rear fixed shaft pin 4 mounted on the storage box base assembly 1 through the rear fixed shaft pin mating hole. The opening torsion spring 3 is sleeved on the rear fixed shaft pin 4, with one end fixed to the storage box base assembly 1 and the other end fixed to the rear connecting rod 9, and is used to apply an upward opening force to the storage box door assembly 30. The upper end of the front connecting rod 8 is mounted on the box body shaft hole 3a of the storage box body 10 through the front movable shaft pin 6, and the lower end is hinged to the storage box base assembly 1 through the front fixed shaft pin 7.

[0082] In this design, the distance between the rear fixed pin 4 and the rear movable pin is equal to the distance between the front movable pin 6 and the front fixed pin 7, and the distance between the rear fixed pin 4 and the front fixed pin 7 is equal to the distance between the front movable pin 6 and the rear movable pin. These four hinge points together form a parallelogram, thus constituting a parallelogram linkage mechanism. This structure ensures that the storage box door assembly 30 maintains a stable posture during movement, translating along an oblique upward and downward direction.

[0083] 4. Damping assembly assembly, such as Figure 11 As shown; The damping assembly 2b of the damping assembly 2 passes through the damping assembly hole b on the storage box body 10, achieving a fixed connection with the storage box body 10; the damping assembly pin 2a of the damping assembly 2 is inserted into the damping assembly hole a on the front link 8, achieving a connection with the front link 8. When the storage box door assembly 30 moves, the damping assembly 2 generates relative motion resistance through its internal damping structure, buffering the opening process of the storage box and allowing it to open smoothly.

[0084] 5. Button assembly, such as... Figure 7 , 8 As shown; The button plate 5 is mounted on the upper end of the button bracket 18 via a snap-fit ​​structure. The button bracket 18 is mounted in the vertical sliding groove of the button base 20, and a button return spring 19 is installed at its bottom. The button bracket 18 is provided with an anti-dislodgement snap-fit ​​structure to prevent it from dislodging from the sliding groove under the action of the return spring. The transmission gear 21 is mounted in the rotating groove of the button base 20, and the gear on one side meshes with the rack on the side of the button bracket 18. The push rod 22 is mounted in the transverse sliding groove of the button base 20, and the rack on its side meshes with the gear on the other side of the transmission gear 21. The button cover plate 23 is mounted on the button base 20 via a snap-fit ​​structure and is provided with a limiting structure to restrict the axial movement of the transmission gear 21 in the rotating groove. After assembly, the button base 20 is fastened to the storage box base assembly 1 with screws, so that the end of the push rod 22 corresponds to the position of the right locking tongue 15.

[0085] 6. Storage box base assembly, such as Figure 10 As shown; The storage box base assembly 1 includes a lock hole 101, a guide surface 102, an opening stop rib 103, and a buffer block mating surface 104; the storage box base assembly 1 has an internal cavity structure and is externally fixed to the vehicle body. The storage box door assembly 30 is movably disposed within the cavity of the storage box base assembly 1.

[0086] III. Working Principle 1. Principle of movement of the storage box The movement of the storage box body in this invention is based on the motion characteristics of a parallelogram linkage mechanism. Since the rear fixed pin 4 and the front fixed pin 7 are fixed on the storage box base assembly 1 and their positions are relatively fixed, when the storage box door assembly 30 is subjected to an opening force or a closing force, the front movable pin 6 and the rear movable pin will respectively perform circular motion around the front fixed pin 7 and the rear fixed pin 4, thereby driving the storage box door assembly 30 to perform translational motion in the oblique upward and downward direction, realizing the opening and closing of the storage box.

[0087] The distance between the rear fixed pin 4 and the rear movable pin 24 is equal to the distance between the front movable pin 6 and the front fixed pin 7, and the distance between the rear fixed pin 4 and the front fixed pin 7 is equal to the distance between the front movable pin 6 and the rear movable pin 24. The positions of the rear fixed pin 4 and the front fixed pin 7 are relatively fixed, and the front movable pin 6 and the rear movable pin 24 rotate around the front fixed pin 7 and the rear fixed pin 4 respectively to realize the opening and closing movement of the storage box.

[0088] 2. Button Assembly Motion Principle When the button plate 5 is pressed, it causes the button bracket 18 to move downwards along the vertical sliding groove. The rack on the button bracket 18 drives the transmission gear 21 to rotate, and the transmission gear 21 further drives the push rod 22 to move towards the latch along the horizontal sliding groove. When the pressure applied to the button plate 5 is removed, the button bracket 18 returns to its original position under the elastic force of the button reset spring 19, and at the same time, the transmission gear 21 drives the push rod 22 to move in the opposite direction back to its initial position.

[0089] Pressing the button plate 5 causes the button plate and button bracket 18 to move, which in turn drives the transmission gear 21 to rotate. The transmission gear 21 then drives the push rod 22 to move. When the pressure applied to the button plate 5 is removed, the button plate and button bracket 18 are reset by the action of the button reset spring 19.

[0090] 3. Locking tongue assembly movement principle When an inward force is applied to the left latch 12 or the right latch 15, the latches retract inward along the square hole on the latch bracket 16. Since the left latch 12 and the right latch 15 are hinged through the latch connecting block 14, they retract inward synchronously. When the inward force is removed, the latches extend outward under the tension of the latch return spring 17, returning to their initial state.

[0091] When force is applied to the latch, the latch retracts inward. After the force is removed, the latch returns to its extended state under the action of the latch return spring 17. The left latch 12 and the right latch 15 are connected by the latch connecting block 14 to ensure that the left and right latches retract or extend inward synchronously.

[0092] IV. Work Process 1. In the off state, such as Figure 13 As shown; When the storage box is closed, the left latch 12 and right latch 15 on the storage box door assembly 30 are respectively inserted into the corresponding lock holes on the storage box base assembly 1, restricting the storage box door assembly 30 from moving in the opening direction. At the same time, the buffer block 13 on the storage box body 10 is in close contact with the buffer block mating surface on the storage box base assembly 1, restricting the storage box door assembly 30 from continuing to move in the closing direction, so that the storage box remains in a stable closed state.

[0093] The latch on the storage box door assembly engages with the lock hole on the storage box base assembly to restrict the storage box door assembly from moving in the opening direction; the buffer block on the storage box engages with the buffer block mating surface on the storage box base assembly to restrict the storage box door assembly from continuing to move in the closing direction.

[0094] 2. The startup process, such as Figure 15-16 As shown; When opening the storage box, pressing the button plate 5 causes the push rod 22 to move towards the latch via the gear and rack transmission of the button assembly. Its end pushes the right latch 15 inward, causing it to retract. Simultaneously, the left latch 12 retracts inward under the action of the latch connecting block 14. When the latch is completely disengaged from the lock hole, the storage box door assembly 30 opens smoothly upward at an angle under the combined action of the opening torsion spring 3, its own weight, and the damping force of the damping assembly 2. When the storage box door assembly 30 is opened to its maximum angle, the front connecting rod 8 and the rear connecting rod 9 contact the opening stop rib on the storage box base assembly 1. Under the limiting action of the stop rib, the storage box door assembly 30 remains suspended in the open state, facilitating the user's access to items.

[0095] Pressing the button plate 5 causes the push rod 22 to move and push out the lock tongue located in the lock hole. The storage box door assembly opens smoothly under the action of the opening torsion spring 3, the self-generated gravity of the storage box door assembly, and the damping 2.

[0096] 3. In the open state, such as Figure 14 As shown; An opening stop rib is designed on the storage box base assembly. When the front link 8 and the rear link 9 rotate to this position, they are suspended at this position under the action of the stop rib.

[0097] 4. The shutdown process, such as Figure 13 , 16 As shown; When the storage box is closed, a downward pushing force is applied to the storage box door assembly 30, causing it to move diagonally downwards. When the guide slope at the front end of the latch contacts the guide surface on the storage box base assembly 1, the guide surface generates an inward component force on the latch, causing the latch to retract inwards. When the storage box door assembly 30 moves to the closed position, the latch corresponds to the position of the lock hole, the latch loses its inward force, and under the pull of the latch return spring 17, it pops outwards and inserts into the lock hole. At the same time, the buffer block 13 contacts the buffer block mating surface, absorbing the closing impact force, and the storage box returns to a stable closed state.

[0098] When a force is applied to push the storage box to close, the latch guide ramp touches the guide surface on the storage box base assembly 1, the latch retracts inward. When the latch returns to the lock hole position, it loses the inward force and pops outward, and the storage box returns to the closed state.

[0099] This invention utilizes a parallelogram linkage mechanism to allow the storage compartment door assembly to open diagonally upwards and downwards, replacing the traditional horizontal rotation method. This allows for a deeper compartment design, significantly increasing storage space and reducing the risk of items falling out. The diagonal movement trajectory prevents the storage compartment from hitting the front passenger's legs during opening, while also allowing the storage compartment to be installed at a height that matches the human sitting posture, eliminating the need to bend over to retrieve items. An opening torsion spring provides automatic opening force, enhancing ease of use. A damping assembly buffers the opening motion, preventing the storage compartment from suddenly opening and causing items to scatter or people to be injured.

[0100] All other parts not described herein belong to the prior art. The embodiments described above are merely illustrative of several implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A vehicle-mounted storage box, characterized in that, Includes storage box base assembly (1), storage box door assembly (30), front linkage assembly (31), rear linkage assembly (32), opening torsion spring (3), and damping assembly (2); The storage box base assembly (1) has a hollow internal structure and is fixed to the vehicle body externally; The storage box door assembly (30) is movably disposed within the cavity of the storage box base assembly (1); The two ends of the front link assembly (31) are respectively hinged to the front ends of the storage box base assembly (1) and the storage box door assembly (30), and the two ends of the rear link assembly (32) are respectively hinged to the rear ends of the storage box base assembly (1) and the storage box door assembly (30); the front link assembly (31) and the rear link assembly (32) are arranged in parallel and form a parallelogram link mechanism with the storage box base assembly (1) and the storage box door assembly (30); The opening torsion spring (3) is located at the hinge between the rear link assembly (32) and the storage box base assembly (1) to provide the opening force of the storage box; The damping assembly (2) is connected between the storage box door assembly (30) and the front linkage assembly (31) to buffer the opening movement of the storage box.

2. The vehicle-mounted storage box according to claim 1, characterized in that, The four hinge points of the parallelogram linkage mechanism are: the front fixed shaft pin (7) and the rear fixed shaft pin (4) installed at the front and rear ends of the bottom of the storage box base assembly (1), and the front movable shaft pin (6) and the rear movable shaft pin (24) installed at the front and rear ends of the upper part of the storage box door assembly (30). The distance between the front movable pin (6) and the front fixed pin (7) is equal to the distance between the rear movable pin (24) and the rear fixed pin (4), and the distance between the front fixed pin (7) and the rear fixed pin (4) is equal to the distance between the front movable pin (6) and the rear movable pin (24).

3. A vehicle-mounted storage box according to claim 2, characterized in that, The front link assembly (31) includes a front link (8) arranged laterally and two side links arranged in parallel longitudinally. The two ends of the front link (8) are respectively connected to the two side links, and the two side links are respectively provided with mating holes for hinged to the front movable shaft pin (6) and the front fixed shaft pin (7).

4. A vehicle-mounted storage box according to claim 3, characterized in that, The rear link assembly (32) includes two longitudinally parallel rear links (9), a limiting block at the lower end of the rear link (9), and mating holes at both ends of the two rear links (9) respectively for hinge connection with the rear movable shaft pin (24) and the rear fixed shaft pin (4). The rear fixed shaft pin (4) is connected to the limiting block by a belt.

5. A vehicle-mounted storage box according to claim 4, characterized in that, The storage box base assembly (1) is provided with an arc-shaped limiting groove, and the limiting block is set in the arc-shaped limiting groove.

6. A vehicle-mounted storage box according to claim 1, characterized in that, It also includes a latch assembly (34), which includes a left latch (12), a right latch (15), a latch connecting block (14), a latch bracket (16), and a latch return spring (17); The latch connecting block (14) is installed on the latch bracket (16) by means of a hole and a shaft pin, and the shaft pin on the latch bracket (16) is provided with an anti-disengagement structure; The latch bracket (16) has square holes on both sides for limiting the position. The left latch (12) and the right latch (15) pass through the left and right square holes respectively, and the middle part of the two is hinged to the latch connecting block (14) by means of hole matching shaft pin. The latch return spring (17) is connected between the latch and the latch bracket (16) and is used to apply a pulling force to the latch to extend to both sides; The latch bracket (16) is fixed to the storage box body (10) of the storage box door assembly (30) by screws.

7. A vehicle-mounted storage box according to claim 6, characterized in that, The storage box base assembly (1) is also provided with a guide surface, and the ends of the left latch (12) and the right latch (15) are provided with latch guide slopes. The latch guide slopes push against the guide surface during the process of the storage box door assembly (30) returning to the closed position.

8. A vehicle-mounted storage box according to claim 1, characterized in that, It also includes a button assembly (33), which includes a button pressure plate (5), a button bracket (18), a button reset spring (19), a button base (20), a transmission gear (21), a push rod (22), and a button cover plate (23); The button plate (5) is snapped onto the button bracket (18); The button bracket (18) is installed in the vertical sliding groove of the button base (20), the button reset spring (19) is installed at the bottom of the button bracket (18), and the button bracket (18) is provided with an anti-dislodgement snap-fit ​​structure; The transmission gear (21) is installed in the rotating groove of the button base (20), and one side of the gear meshes with the rack on the button bracket (18); The push rod (22) is installed in the transverse sliding groove of the button base (20), and its rack meshes with the gear on the other side of the transmission gear (21); The button cover (23) is snapped onto the button base (20) and is provided with a limiting structure to restrict the axial movement of the transmission gear (21); The button base (20) is fastened to the storage box base assembly (1) by screws, and the push rod (22) corresponds to the position of the right latch (15) of the latch assembly (34).

9. A vehicle-mounted storage box according to claim 1, characterized in that, The storage box base assembly (1) has two opening stop ribs on its front and rear sides respectively. The two opening stop ribs are used to limit the maximum rotation angle of the front link assembly (31) and the rear link assembly (32).

10. A design method for a vehicle-mounted storage box as described in any one of claims 1-9, characterized in that, Includes the following steps: S1: Determine the installation height and maximum opening angle of the storage box based on the space dimensions and ergonomic requirements of the vehicle's passenger compartment; S2: Based on the determined installation height and maximum opening angle, design the position of each hinge point and the length of the linkage of the parallelogram linkage mechanism so that the movement trajectory of the storage box door assembly avoids the leg area of ​​the passenger. S3: Design the depth and internal structure of the storage box according to its volume requirements; S4: Based on the weight of the storage box and the opening speed requirements, match the spring force parameters of the opening torsion spring and the damping coefficient of the damping assembly to make the opening process smooth. S5: The design of the bolt assembly and button assembly ensures reliable locking and moderate unlocking force.

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