A secondary injury prevention armrest box cover

Abstract

The application provides a secondary injury prevention armrest box cover and relates to the field of design and manufacture of automobile armrest boxes. The secondary injury prevention armrest box cover comprises a box cover body, the box cover body comprises a rotating shaft, the box cover body further comprises an upper cover and a base plate, the base plate is internally provided with a cavity, the base plate is internally provided with a anti-disengagement locking mechanism located in the cavity, and the anti-disengagement locking mechanism is used for locking the box cover body and preventing the opening and closing action of the box cover body when the vehicle overturns.

Description

Technical Field

[0001] This application relates to the design and manufacture of automotive armrest boxes, and in particular to an armrest box cover that prevents secondary injuries. Background Technology

[0002] A car armrest box is a common interior component used to store items in a vehicle and provide elbow support. It typically consists of a box body fixed to the vehicle body and a lid connected to the box body via a hinge mechanism.

[0003] For related technology, please refer to Chinese invention patent CN111251959A, which discloses an armrest box for a vehicle and a vehicle having the same. The armrest box includes an armrest body, an armrest cover, a left-side switch, a right-side switch, and a linkage switch. The armrest cover has an open position for opening the storage compartment and a closed position for closing the storage compartment, and the armrest cover can only be opened from the left or the right. When the left-side switch is pressed, the left side of the armrest cover opens, and when the right-side switch is pressed, the right side of the armrest cover opens. The linkage switch is located at the rear end of the armrest cover and is linked to either the left-side switch or the right-side switch.

[0004] However, existing armrest boxes still have the following shortcomings: in the event of an extreme accident such as a vehicle rollover, the connection mechanism between the box body and the lid may unexpectedly unlock or structurally fail due to the impact force, causing the lid to accidentally pop open or separate from the box body. In this case, the lid and the scattered items stored inside may scatter inside the vehicle, posing a collision risk to the occupants. Utility Model Content

[0005] This application provides a handrail box cover to prevent secondary injuries, which solves the problem that when a vehicle overturns or other extreme accidents, the cover and the scattered items stored inside may scatter inside the passenger compartment, posing a collision risk to the occupants.

[0006] The technical solution adopted in the embodiments of this application is as follows: In a first aspect, embodiments of this application provide a handrail box cover for preventing secondary injuries, which includes a box cover body, the box cover body including a rotating shaft, the box cover body also including an upper cover and a base plate, the base plate having a cavity inside, and an anti-detachment locking mechanism located in the cavity inside the base plate, the anti-detachment locking mechanism being used to lock the box cover body when the vehicle overturns, preventing its opening and closing action.

[0007] By adopting the above technical solution, a locking mechanism specifically designed for extreme working conditions is integrated inside the base plate of the trunk lid. This mechanism is built into the cavity of the base plate, allowing it to be completely concealed during normal vehicle operation without affecting the normal opening and closing function and appearance of the trunk lid. In the event of a rollover or severe overturning accident, this built-in mechanism is triggered and operates, locking the rotational movement of the trunk lid around its axis, thereby completely preventing the lid from accidentally opening. This achieves the effect of decoupling and coexisting protective and everyday use functions.

[0008] In one optional implementation, the anti-detachment locking mechanism includes a locking plug and a movable structure that is linked to the opening and closing action of the lid body. A rotating shaft is fixedly connected to the cavity inside the base plate. The locking plug is rotatably connected to the rotating shaft. Under normal driving conditions, the locking plug is located in a first position, avoiding the movement path of the movable structure. When the vehicle overturns, the locking plug moves to a second position under the action of gravity, blocking the movement path of the movable structure, thereby preventing the lid body from opening and closing.

[0009] By adopting the above technical solution, under normal conditions, the locking plug is in the avoidance position, and the entire opening and closing transmission is unobstructed. When the vehicle overturns, gravity drives the locking plug to automatically rotate around its axis to the blocking position, where it locks into the moving path of the movable structure. Since the movable structure is the intermediate transmission component that drives the opening and closing of the cover, its movement is blocked, thus interrupting the transmission of the opening and closing action. This achieves the effect of triggering using the principle of gravity, resulting in a simple structure, low cost, and high reliability.

[0010] In one alternative implementation, a multi-stage shim is provided at the rotating shaft, and the multi-stage shims are fastened by screws and nuts.

[0011] By employing the above technical solution, a controllable axial clamping force is generated through the introduction of multi-stage washers and the use of screws and nuts for fastening. When the screws and nuts are tightened, the multi-stage washers are axially compressed, generating strong static friction between the washers and between the washers and the shaft / support. This friction creates a resistance torque that hinders the rotation of the lid around its axis. By adjusting the tightening force, this resistance torque can be precisely balanced with the overturning torque generated by the lid's own weight at different opening angles, achieving a stepless hovering function for the lid at any opening angle, thus improving both ease of use and safety.

[0012] In one alternative implementation, some of the gaskets in the multi-stage gaskets are made of rubber.

[0013] By adopting the above technical solution, the rubber gasket has good elasticity and damping characteristics, which can effectively absorb the small impacts and collisions between metal parts generated during the opening and closing of the cover and the vibration of the vehicle driving, thereby significantly reducing or eliminating abnormal noises caused by metal friction and impact, and achieving the effect of reducing abnormal noises.

[0014] In one alternative implementation, slide rails along the length of the substrate are provided on both sides of the substrate, and a slider that cooperates with the slide rails is provided on the inner surface of the upper cover.

[0015] By adopting the above technical solution, users can directly slide the top cover horizontally forward or backward to partially or completely expose the internal space of the armrest box cover, thus achieving the effect of convenient use.

[0016] In one alternative implementation, a low-friction coating is provided on the slider.

[0017] By adopting the above technical solution, a low-friction coating is applied to the surface of the slider, reducing the coefficient of sliding friction between the slider and the rail contact surface, improving the smoothness and ease of sliding operation, and achieving the effect of reducing friction and extending service life.

[0018] In one optional implementation, both the top cover and the substrate are provided with through holes of matching position and size, and are equipped with locking pins. When the top cover is not sliding relative to the substrate, the through holes are aligned.

[0019] By adopting the above technical solution, when the top cover is not sliding, the through holes on the top cover and the substrate will be aligned. At this time, by inserting the matching locking pin, the top cover and the substrate can be rigidly locked in the horizontal direction, achieving effective locking and reducing the effect of accidental sliding of the top cover.

[0020] In one alternative implementation, the end of the box cover body away from the rotation axis is provided with a recess for easy operation.

[0021] By adopting the above technical solution, a recess is set at one end of the lid body, providing a clear point of force for the user's fingers, making the opening action easier and achieving the effect of convenient operation.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The built-in anti-detachment locking mechanism is triggered by gravity, requiring no external energy. Its simple and reliable structure effectively prevents the lid from accidentally opening when the vehicle overturns, greatly reducing the risk of secondary collision injuries to occupants while not affecting the convenience of daily use. 2. The multi-level pad friction allows for hovering at any angle, and the sliding cover and ergonomic recessed design provide a flexible, effortless, and comfortable operating method, meeting the diverse usage needs of users in different scenarios. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a handrail box cover designed to prevent secondary injuries.

[0024] Figure 2This is a schematic diagram of the substrate structure.

[0025] Figure 3 This is a cross-sectional view of the substrate.

[0026] Explanation of reference numerals in the attached drawings: 1. Box cover body; 2. Gasket; 3. Top cover; 4. Base plate; 5. Slide rail; 6. Locking plug; 7. Rotating shaft; 8. Movable structure; 9. Rotating shaft. Detailed Implementation

[0027] The present application will be further described in detail below with reference to all the accompanying drawings in the embodiments of the present application.

[0028] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after the connection. It should be understood that when component A is fixedly connected to component C via component B, changes in the relative positional relationship due to deformation of components A, B, and C are permissible. The integrated structure obtained by the two components through a one-piece molding process means that during the formation of one of the two components, that component is connected to the other component, without requiring further processing (such as bonding, welding, snap-fit ​​connections, or screw connections) to connect the two components.

[0029] The directional terms mentioned in the embodiments of this application, such as "upper", "lower", "side", etc., are only for reference to the direction of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to 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 embodiments of this application.

[0030] The term "multiple" refers to at least two. The term "more than" includes the stated number. The term "and / or" describes a relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0031] This application discloses a handrail box cover that prevents secondary injuries.

[0032] Reference Figure 1 and Figure 3 A handrail box cover for preventing secondary injuries includes a cover body 1. The cover body 1 includes a rotating shaft 9 for hinged to the handrail box body of the vehicle. The rotating shaft 9 is made of alloy steel. The rotating shaft 9 enables the entire cover body 1 to rotate smoothly around the shaft, realizing the opening and closing function.

[0033] Reference Figure 1 and Figure 2 The box cover body 1 also includes an upper cover 3 and a base plate 4. The base plate 4 forms the basic framework and mounting platform of the box cover. Its main body is usually injection molded from high-strength engineering plastic, and has sufficient structural strength to support the upper cover 3 and internal mechanisms.

[0034] Reference Figure 2 and Figure 3 On the inner side of the base plate 4, that is, the side facing the inside of the armrest box, a recessed cavity is specially formed. An anti-disengagement locking mechanism is provided in the cavity, including a locking plug 6 and a movable structure 8.

[0035] Reference Figure 1 and Figure 3 The movable structure 8 is linked to the opening and closing action of the lid body 1. When the user opens the lid, the movable structure 8 will move along a preset trajectory under the action of transmission components such as connecting rods and springs, and finally push the lid to rotate and open.

[0036] Reference Figure 2 and Figure 3 Inside the cavity of the substrate 4, a plug-in rotating shaft 7 parallel to the main rotating shaft 9 is fixedly installed. The main body of the locking plug 6 is an L-shaped rod-shaped component, which is fitted onto the plug-in rotating shaft 7 through a shaft hole, thereby being able to rotate freely around the shaft.

[0037] Reference Figure 3 When the vehicle is driving normally and level, the locking plug 6 is stably in the initial posture of the first position. In this position, the locking plug 6 completely avoids the entire movement path space of the movable structure 8, ensuring that the movable structure 8 can complete its entire stroke without obstruction, so that the lid can open and close normally.

[0038] When a vehicle overturns and its body posture changes drastically, the direction of gravity shifts dramatically. Due to the torque exerted by its own weight on the pivot shaft 7, the locking plug 6 automatically rotates around the shaft, swinging from one equilibrium position to a second position. In the second position, a portion of the locking plug 6 precisely moves into the movement path of the movable structure 8, creating a physical obstruction. The movement of the movable structure 8 is blocked, thus halting the entire opening and closing action, locking the lid in its current position and preventing it from opening.

[0039] Reference Figure 1 and Figure 3At the connection between the rotating shaft 9 and the base plate 4, a multi-stage gasket 2 is provided, and some of the gaskets 2 are made of rubber. These rubber gaskets 2 and metal gaskets 2 are arranged alternately on the rotating shaft 9. When the entire set of gaskets 2 is tightened by screws and nuts, the rubber gaskets 2 will undergo greater deformation than the metal gaskets 2 due to the compressibility and elasticity of their material, thereby ensuring that all gaskets 2 can achieve sufficient and uniform contact.

[0040] Reference Figure 1 Rubber materials possess excellent damping and vibration reduction characteristics and low frictional noise. During the opening and closing of the lid or when the vehicle encounters bumps, the small impacts and vibrations between rotating parts are effectively absorbed by the pad 2, and the direct hard collisions between metal parts are buffered. At the same time, the coefficient of friction between rubber and metal is stable, and the friction process is quieter.

[0041] Reference Figure 1 and Figure 2 Two parallel slide rails 5 are integrally formed or fixedly installed along the length of the cover on both sides of the base plate 4. Two sliders that match the slide rails 5 are fixedly installed on the inner surface of the top cover 3.

[0042] The slider's shape precisely matches the groove of the slide rail 5, allowing it to be embedded in the slide rail 5 and slide freely along its length. The slider's surface is coated with polytetrafluoroethylene. By engaging the slider with the slide rail 5, the user can grasp the front edge of the top cover 3 and push it forward, causing the top cover 3 to slide relative to the fixed substrate 4, thereby partially or completely exposing the opening in the middle of the substrate 4 for easy access to items.

[0043] On the side wall of the top cover 3 and the corresponding side wall of the substrate 4, there is a through hole and a locking pin respectively. The positions and diameters of these two through holes are designed to match each other so that when the top cover 3 is slid to the fully closed position, the two through holes will be precisely aligned. The user can manually insert a separate, cylindrical locking pin into these aligned through holes. The diameter of the locking pin is matched with the clearance of the through holes, and its length is sufficient to pass through the top cover 3 and the substrate 4. After insertion, the pin body of the locking pin passes through both the top cover 3 and the substrate 4, forming a rigid mechanical connection in the horizontal direction.

[0044] Reference Figure 1 and Figure 3 At the end of the lid body 1 away from the rotating shaft 9, there is an inwardly recessed arc-shaped depression, which provides a clear point of force and grip position for the user's fingers, making it convenient to use.

[0045] The implementation principle of the handrail box cover for preventing secondary injuries in this application embodiment is as follows: A built-in locking plug 6 automatically jams the movable structure 8 when the vehicle overturns, locking the cover and preventing secondary injuries. In daily use, the damping mechanism based on the multi-stage gasket friction pair allows the cover to be stably suspended at any angle, reducing the possibility of accidental closure and pinching injuries. Simultaneously, the sliding guide rail and low-friction coating provide a smooth sliding opening method, which, combined with the opening recess, significantly improves operational convenience and comfort.

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0047] It should be noted that all the above-mentioned figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application. The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A handrail box cover for preventing secondary injuries, comprising a cover body (1), wherein the cover body (1) includes a rotating shaft (9), characterized in that: The box cover body (1) also includes an upper cover (3) and a base plate (4). The base plate (4) has a cavity inside and an anti-detachment locking mechanism located inside the cavity. The anti-detachment locking mechanism is used to lock the box cover body (1) when the vehicle overturns, preventing it from opening or closing.

2. The armrest box cover for preventing secondary injuries as described in claim 1, characterized in that: The anti-detachment locking mechanism includes a locking plug (6) and a movable structure (8) that is linked to the opening and closing action of the lid body (1). A rotating shaft (7) is fixedly connected to the cavity inside the base plate (4). The locking plug (6) is rotatably connected to the rotating shaft (7). Under normal driving conditions, the locking plug (6) is located in the first position, avoiding the movement path of the movable structure (8). When the vehicle overturns, the locking plug (6) moves to the second position under the action of gravity, blocking the movement path of the movable structure (8), thereby preventing the lid body (1) from opening and closing.

3. The armrest box cover for preventing secondary injuries as described in claim 1, characterized in that: The rotating shaft (9) is provided with multi-stage gaskets (2), which are fastened by screws and nuts.

4. The armrest box cover for preventing secondary injury as described in claim 3, characterized in that: Some of the gaskets (2) in the multi-stage gasket (2) are made of rubber.

5. The armrest box cover for preventing secondary injuries as described in claim 1, characterized in that: The substrate (4) is provided with slide rails (5) along the length of the substrate (4) on both sides, and the inner surface of the upper cover (3) is provided with a slider that cooperates with the slide rails (5).

6. The armrest box cover for preventing secondary injuries as described in claim 5, characterized in that: The slider is coated with a low-friction coating.

7. The armrest box cover for preventing secondary injuries as described in claim 5, characterized in that: Both the upper cover (3) and the substrate (4) are provided with through holes of matching position and size, and are equipped with locking pins. When the upper cover (3) is not sliding relative to the substrate (4), the through holes are aligned.

8. The armrest box cover for preventing secondary injuries as described in claim 1, characterized in that: The end of the box cover body (1) away from the rotating shaft (9) is provided with a recess for easy operation.

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