A multi-directionally adjustable steering wheel desk plate

Abstract

The application discloses a multi-directional adjustable automobile steering wheel table board, which comprises a table board body and a pair of telescopic supports arranged on the front sides of the table board body. The table board body is provided with mounting holes, the telescopic supports with an integrated rod structure are capable of being adjusted in steps of 80-150 mm by being inserted into the mounting holes to a depth, the surfaces of the supports are provided with guide key grooves matched with guide protrusions of the table board body to prevent deflection, a locking mechanism adopts an outer threaded structure with a slot matched with a knob nut, radial holding force is generated by thread rolling to fix the supports, detachable anti-skid sleeves are arranged at the ends of the supports to improve clamping stability, and cup grooves and mobile phone card grooves are integrated on the table board body and used for placing commonly used articles. The application has the following innovative effects: ① the integrated rod structure simplifies assembly steps and improves bending stiffness by 160%; ② key groove guiding and slotted locking realize single-handed precise adjustment; and ③ independent telescopic supports are adapted to inclined steering wheels, and the horizontal error is less than 2°. The application is suitable for in-vehicle dining, mobile office and other scenes.

Description

Technical Field

[0001] This invention relates to the field of automotive supplies technology, specifically a multi-directionally adjustable steering wheel table that can be installed on a car steering wheel to place items. Background Technology

[0002] Drivers often need to temporarily place items such as drinks and mobile phones while resting in their cars. Traditional solutions include dashboard storage boxes or door storage compartments, but these have drawbacks such as inconvenience in accessing items and the items easily slipping. Steering wheel trays, which utilize the steering wheel to provide stable flat support, have become a mainstream in-car accessory.

[0003] Currently, most commercially available products use fixed-length brackets, which cannot accommodate the diameter differences of steering wheels in different car models (typically 350-450mm), easily causing wobbling. In summary, existing products have four main shortcomings:

[0004] 1. Poor compatibility: Most product brackets have a fixed length, making them incompatible with the small-diameter steering wheels of sports cars and the large-diameter steering wheels of SUVs;

[0005] 2. Insufficient stability: Lacking an effective anti-slip structure, items are prone to slipping when the vehicle is bumpy;

[0006] 3. Limited functionality: It lacks dedicated storage space for frequently used items such as beverages and mobile phones;

[0007] 4. Outdated technology: It uses polypropylene (PP) plastic injection molding, which has low strength and the surface is easily contaminated with oil. Summary of the Invention

[0008] The present invention aims to solve the technical problems of existing steering wheel trays, such as poor size adaptability, insufficient stability and limited functions, and provides a multi-functional car steering wheel tray that is multi-directionally adjustable and has an anti-slip structure.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A multi-directional adjustable car steering wheel tray includes a tray body and a pair of retractable brackets disposed on both sides of the front of the tray body. The tray body is provided with mounting holes for the retractable brackets to be inserted into or extended. The retractable brackets achieve stepless extension and retraction adjustment by the depth of insertion into the mounting holes, and the extension and retraction length is fixed by a locking mechanism.

[0011] Furthermore, a guide mechanism is provided between the retractable bracket and the tabletop body. The guide mechanism includes a guide groove provided on the surface of the retractable bracket and extending along its extension direction, and a guide protrusion provided on the tabletop body and slidingly engaging with the guide groove.

[0012] Furthermore, the locking mechanism includes a knob-type compression locking nut, and the end of the mounting hole is provided with an external thread structure that mates with the locking nut. The external thread structure includes multiple axial slots.

[0013] Furthermore, the end of the retractable bracket is provided with a detachable anti-slip sleeve.

[0014] Furthermore, the surface of the tabletop body is provided with a cup groove with a depth of 15-25mm and a groove wall inclination angle of 3°-5°.

[0015] Furthermore, the surface of the tabletop body is also provided with a mobile phone card slot, the bottom of the slot is provided with anti-slip texture and has a built-in magnetic sheet.

[0016] Furthermore, the bottom of the tabletop body is provided with a weight-reducing groove.

[0017] Furthermore, the tabletop body and the retractable support are injection molded from glass fiber reinforced ABS modified material.

[0018] Furthermore, the surface of the tabletop is coated with an anti-fouling coating with a thickness of 20-30 micrometers.

[0019] Furthermore, the tabletop body has an arc-shaped groove on the side closest to the human operator.

[0020] This invention employs an integrated rod telescopic structure combined with a slotted locking mechanism, achieving the following significant improvements compared to existing technologies:

[0021] 1. The integrated rod structure simplifies the assembly process, and mechanical tests show a significant improvement in bending strength;

[0022] 2. It can adapt to the usage needs of round or irregularly shaped steering wheels of different diameters and tilt angles;

[0023] 3. The guide keyway and the slotted locking mechanism work together to achieve precise one-handed adjustment;

[0024] 4. Safety and stability: Excellent vibration resistance and optimized load-bearing capacity;

[0025] 5. Low production and maintenance costs. Attached Figure Description

[0026] Figure 1 A schematic diagram of a multi-directionally adjustable car steering wheel tray is shown.

[0027] Figure 2 It shows Figure 1 Exploded view;

[0028] Figures 3-4 A schematic diagram of the tabletop body is shown;

[0029] Figure 5 It shows Figure 4 A magnified view of part A in the middle;

[0030] Figure 6 A schematic diagram of the retractable support structure is shown;

[0031] Figures 7-10 The diagram illustrates the changing states of the car's steering wheel tray. Detailed Implementation

[0032] The technical features and advantages of this application will be described in more detail below with reference to the accompanying drawings, so that the advantages and features of this application can be more easily understood by those skilled in the art, thereby making a clearer and more explicit definition of the scope of protection of this invention.

[0033] It should be noted that in the description of this application, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0034] The terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly indicating the importance of the technical features shown.

[0035] Furthermore, it should be noted that, in the description of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Please see Figures 1-6 This invention provides a multi-directional adjustable car steering wheel tray, including a tray body 1, a retractable bracket 2, and a locking mechanism 3; wherein, the tray body 1 is provided with mounting holes 11 for the retractable bracket 2 to be inserted or extended, the retractable bracket 2 can achieve stepless telescopic adjustment of 80-150mm by inserting into the mounting holes 11, and the locking mechanism 3 is used to fix the retractable bracket 2 at a certain telescopic length.

[0037] The following is a detailed description of each core component with reference to the accompanying drawings.

[0038] Tabletop Body 1: The tabletop body 1 is a rectangular plate with overall dimensions of 300mm × 250mm × 8mm (length × width × thickness). A mounting hole 11 with a diameter of Φ12±0.1mm is provided on each of the front two sides of the tabletop body 1. The mounting holes 11 connect to the hollow interior of the tabletop body 1. To reduce the coefficient of friction, a 0.5mm thick bronze bushing can be embedded in the inner wall of the mounting hole 11. The tabletop body 1 can be injection molded from ABS+15% glass fiber, and the bushing can be press-fitted into the inner wall of the mounting hole 11 using an interference fit. To prevent items from falling, the surface of the tabletop body 1 can be designed with a recessed groove structure 12 and a circular cup holder 13 for placing bottled beverages. A liquid receiving groove 14 can also be provided around the cup holder 13 to prevent liquid from leaking onto various parts of the tabletop. In some embodiments, a mobile phone slot can also be provided on the surface of the tabletop body 1 for placing a mobile phone, further expanding the functionality of the tabletop. The tabletop body 1 features a slightly concave, curved groove 15 on the side closest to the user's body to conform to the body's curves and enhance operational comfort. To prevent scratches, the edges of the tabletop body 1, as well as the cup holder 13 and liquid container 14, are designed with smooth transitions.

[0039] The integrated telescopic bracket 2: The telescopic bracket 2 is an L-shaped rod (diameter Φ10mm), the surface of which can be hardened to improve wear resistance. Its telescopic adjustment is achieved by varying the depth of insertion into the mounting hole 11 (adjustment range 80-150mm). The telescopic bracket 2 includes a first rod portion 21 and a second rod portion 22 that are perpendicular to each other. The first rod portion 21 is used for linear sliding within the mounting hole 11, and its extension length L = total rod length - insertion depth; the minimum length is 80mm (the end of the rod abuts against the inner end face of the mounting hole 11), and the maximum length is 150mm (the rod is only inserted 30mm). The second rod portion 22 is used to engage the steering wheel, thus fixing the tabletop body 1.

[0040] Locking structure 3 includes a knob-type compression locking nut 31 and an external thread structure 32 designed at the end of the mounting hole 11. The locking nut 31 can be made of nylon with an embedded brass threaded sleeve to increase strength. The external thread structure 32 is designed at the entrance section of the mounting hole 11 and includes four axial slots 321 (1mm wide and 2mm deep). The slots 321 form an elastic clamp, which locks the telescopic bracket 2 under the compression of the locking nut 31. The locking principle is: tightening the locking nut 31 → the slots 321 contract → radially clamping the first rod 21, which can generate a radial clamping force of ≥200N. To facilitate tightening the locking nut 31, an anti-slip pattern can be designed on the surface of the locking nut 31 for easy tightening.

[0041] Guide mechanism 4: Includes guide groove 41 and a cooperating guide protrusion 42. Guide groove 41 consists of two parallel keyways machined on the surface of the first rod portion 21. Guide protrusion 42 is a raised key designed into the inner wall of the mounting hole 11, which fits with the keyway with a clearance fit. To facilitate the adjustment of the telescopic bracket, both guide groove 41 and guide protrusion 42 are designed with a smooth transition structure. Guide mechanism 4 is used to prevent the telescopic bracket 2 from rotating, ensuring the stability of the telescopic direction. At the same time, the raised key bears the lateral force, which can reduce the load on locking mechanism 3.

[0042] Removable anti-slip sleeve 5: An anti-slip sleeve 5 is fitted onto the second rod 22 of the telescopic bracket 2 to increase the friction between the telescopic bracket 2 and the steering wheel. The anti-slip sleeve 5 is designed to be removable, allowing it to be replaced if damaged or depending on the material of the steering wheel. As an example, the anti-slip sleeve 5 can be made of sponge or rubber.

[0043] The overall working principle of this invention is as follows:

[0044] Length adjustment process: Loosen the locking nut 31 → Slide the telescopic bracket 2 along the guide keyway → Reach the target length (e.g., 120mm) → Tighten the locking nut 31 to shrink the slot 321 → The external thread structure 32 deforms and hugs the telescopic bracket 2.

[0045] Adaptive fixing mechanism: Because the telescopic bracket 2 is an independent rod, the insertion depth on both sides can be adjusted separately (e.g., 40mm on the left and 60mm on the right), so that the table body 1 remains horizontal when the steering wheel is tilted (actual measurement adapts to steering wheel tilt angles of 0°-30°). At the same time, the table body 1 can also be fixed and used on non-horizontal planes. Figures 7-10 A schematic diagram showing the changes in the retractable support 2 at different telescopic lengths is shown.

[0046] Vibration resistance verification: Under a vibration acceleration of 0.8g (simulating a bumpy road surface), the maximum displacement of the telescopic bracket 2 is 0.15mm (far less than the safety threshold of 1mm).

[0047] In summary, this invention solves the three major pain points of the steering wheel tray industry—poor adaptability, easy shaking, and complicated adjustment—through three-dimensional innovations: structural simplification, performance enhancement, and operation optimization. It is particularly suitable for the diversified needs of ride-hailing, family cars, and outdoor scenarios.

[0048] In the description of this specification, references to terms such as "some embodiments," "some examples," "exemplarily," "example," "preferred," or "further" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A multi-directional adjustable car steering wheel tray, characterized in that, Includes a tabletop body (1) and a pair of retractable brackets (2) located on both sides of the front of the tabletop body (1). The tabletop body (1) is provided with mounting holes (11) for the retractable brackets (2) to be inserted or extended. The retractable brackets (2) can achieve stepless extension and retraction adjustment by inserting into the mounting holes (11), and the extension and retraction length is fixed by a locking mechanism (3).

2. The automotive steering wheel tray according to claim 1, characterized in that, A guide mechanism (4) is provided between the retractable support (2) and the table body (1). The guide mechanism (4) includes a guide groove (41) provided on the surface of the retractable support (2) and extending along its extension direction, and a guide protrusion (42) provided on the table body (1) and slidingly engaged with the guide groove (41).

3. The automotive steering wheel tray according to claim 1, characterized in that, The locking mechanism (3) includes a knob-type compression locking nut (31), and the end of the mounting hole (11) is provided with an external thread structure (32) that mates with the locking nut (31). The external thread structure (32) includes multiple axial slots (321).

4. The automotive steering wheel tray according to claim 1, characterized in that, The retractable support (2) is provided with a detachable anti-slip sleeve (5) at its end.

5. The automotive steering wheel tray according to claim 1, characterized in that, The surface of the table body (1) is provided with a cup groove (13) with a depth of 15-25mm and a groove wall inclination angle of 3°-5°.

6. The automotive steering wheel tray according to claim 1 or 5, characterized in that, The surface of the table body (1) is also provided with a mobile phone card slot, and the bottom of the slot is provided with anti-slip texture and has a built-in magnetic sheet.

7. The automotive steering wheel tray according to claim 1, characterized in that, The bottom of the tabletop body (1) is provided with a weight-reducing groove.

8. The automotive steering wheel tray according to claim 1, characterized in that, The tabletop body (1) and the telescopic bracket (2) are injection molded from glass fiber reinforced ABS modified material.

9. The automotive steering wheel tray according to claim 8, characterized in that, The surface of the tabletop body (1) is coated with an anti-fouling coating with a thickness of 20-30 micrometers.

10. The automotive steering wheel tray according to claim 1, characterized in that, The table body (1) has an arc-shaped groove (15) on the side closest to the human body for operation.

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