Hidden type folding damping hinge and car seat small table board with hinge

Abstract

The invention relates to the technical field of automotive interiors, in particular to a hidden folding damping hinge which comprises a bridging shell, Y-shaped damping leaf springs, cotter pins, plugs, connecting plates, cushions and mandrels, two sets of Y-shaped damping leaf spring positioning grooves are formed in the bridging shell, at least two Y-shaped damping leaf springs are assembled in each set of Y-shaped damping leaf spring positioning grooves, and the cotter pins are connected with the plugs. The plug is installed at the tail end of the Y-shaped damping leaf spring positioning groove, the connecting plate is rotationally arranged on the outer side of the Y-shaped damping leaf spring positioning groove, one end of the buffer cushion abuts against the bridging shell, the other end of the buffer cushion abuts against the connecting plate, the mandrel penetrates through the connecting plate and the bridging shell, and the connecting plate is connected with the connecting plate. And the damping spring and the Y-shaped damping leaf spring form a friction pair to generate damping force. According to the hinge, through the damping structure and the limiting mechanism, the stability of a table board is improved; and the overall attractiveness is improved through the hidden layout.

Description

Technical Field

[0001] The invention relates to the technical field of automobile interior decoration, in particular to a hidden folding damping hinge and a small automobile seat table with a hinge. Background Art

[0002] As the "third space" of the future, the smart cockpit will be endowed with multiple functions such as rest, learning, entertainment, and work, and will have more demands for comfort and practical functions. Some high-end models are equipped with a folding small table assembly in the second row space. The two table tops are folded and unfolded horizontally through a hinge mechanism.

[0003] The hinges of existing small table tops have no damping function, and they feel loose and have a poor user experience when used. For example, they are prone to making strange noises when used in a car on bumpy roads. Moreover, the hinge mechanism can be directly seen from above the table top, which is not only unsightly, but also easy for foreign objects to get stuck in the gap. Summary of the Invention

[0004] In order to solve the problems of the prior art, the present invention provides a hidden folding damping hinge and a small car seat table with the hinge.

[0005] The purpose of the present invention can be achieved through the following technical solution: A hidden folding damping hinge, comprising: A bridge housing, wherein two sets of Y-shaped damping leaf spring positioning grooves are provided inside the bridge housing; Y-shaped damping leaf springs, each group of Y-shaped damping leaf spring positioning grooves is equipped with at least two Y-shaped damping leaf springs; Split pin; A plug installed at the end of the positioning groove of the Y-shaped damping leaf spring; A connecting plate rotatably disposed on the outer side of the Y-shaped damping leaf spring positioning groove; a buffer pad, one end of which abuts against the bridging shell, and the other end of which abuts against the connecting plate; A core shaft passes through the connecting plate and the bridge housing and forms a friction pair with the Y-shaped damping leaf spring to generate a damping force.

[0006] A further improvement is that the Y-type damping leaf spring includes a bridging shell assembly limit surface 1, a cotter pin semicircular limit groove and a core shaft assembly hole. The bridging shell assembly limit surface 1 is arranged corresponding to the Y-type damping leaf spring positioning groove, and the cotter pin is inserted into the cotter pin semicircular limit groove for limiting.

[0007] A further improvement is that the connecting plate includes a fixed end connecting plate and a flip end connecting plate, and the fixed end connecting plate and the flip end connecting plate are both provided with a core shaft thin end assembly hole, a core shaft thick end assembly hole expansion state limit surface, and a folded state limit surface, the core shaft includes a damping leaf spring assembly outer diameter, a thin end straight groove mounting end, and a thick end straight groove mounting end, the thin end straight groove mounting end is interference inserted in the core shaft thin end assembly hole, the thick end straight groove mounting end is interference inserted in the core shaft thick end assembly hole, and the damping leaf spring assembly outer diameter is inserted into the core shaft assembly hole of the Y-type damping leaf spring.

[0008] As a further improvement, the plug is provided with a second bridging shell assembly surface, a core shaft positioning hole and a rotating plate limiting surface. The second bridging shell assembly surface can be embedded in the Y-shaped damping leaf spring positioning groove, and the end of the core shaft is inserted into the core shaft positioning hole.

[0009] As a further improvement, the fixed end connecting plate and the flip end connecting plate are further provided with buffer pad assembly holes, and the buffer pads are arranged in the buffer pad assembly holes.

[0010] As a further improvement, the bridging shell is also provided with a Y-type damping leaf spring assembly limit surface, a cotter pin semicircular limit groove, a plug positioning groove, a core shaft positioning hole, an expanded state limit surface, a folded state limit surface and a U-shaped avoidance position. The Y-type damping leaf spring assembly limit surface is used to install the Y-type damping leaf spring, the cotter pin semicircular limit groove is used to install the cotter pin, the plug positioning groove is used to install the plug, and the core shaft positioning hole is used to limit the core shaft.

[0011] As a further improvement, the buffer pad is provided with an expanded state limiting surface and an assembly hook, the assembly hook of the buffer pad is connected to the assembly interface of the bridging shell, and the expanded state limiting surface contacts the expanded state limiting surface of the bridging shell to achieve buffering limitation.

[0012] A small table for a car seat, comprising: Hidden folding damping hinge; The small table board body includes a fixed board body and a flip board body, the fixed board body is connected to the fixed end connecting plate, and the flip board body is connected to the flip end connecting plate.

[0013] As a further improvement, the fixed end connecting plate and the flip end connecting plate are both provided with small table board positioning columns and small table board assembly holes, and the small table board positioning columns and small table board assembly holes are used to fix the fixed end connecting plate or the flip end connecting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is internally provided with a self-limiting structure. When the small table is fully unfolded, the unfolding limit surface of the buffer pad first contacts the limit surface of the bridge shell. The soft material of the buffer pad provides cushioning to eliminate abnormal noise. Subsequently, the unfolding limit surface of the fixed end or flip end connecting plate contacts the limit surface of the bridge shell to form a hard limit, ensuring that the table is stable after being flattened to prevent warping; when the small table is fully folded, the folding limit surface of the fixed end or flip end connecting plate contacts the limit surface of the bridge shell to form a hard limit, so that the table is folded tightly. The folding limit feature of the connecting plate is L-shaped, which hides the avoidance space of the bridge shell, so that there are no extra lines under the table, and the appearance is more beautiful; 2. During rotation, the core shaft and connecting plate are fixed together, while the Y-shaped damping leaf spring and the bridge housing are fixed together by a cotter pin. When the bridge housing and connecting plate rotate relative to each other, the outer diameter of the core shaft and the assembly hole of the Y-shaped damping leaf spring rotate along the axis. A slight interference fit between the two forms a friction pair, generating a damping force, making the tabletop turn smoothly and improving the operating quality. 3. The bridging shell of the present invention has a U-shaped avoidance space. When the table top is flattened, the hinge is hidden under the table top; when folded, the covering feature moves into the U-shaped avoidance space to avoid interference, ensuring normal use and aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the hinge of the present invention; Figure 2 An exploded view of the hinge of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention; Figure 4 A partial cross-sectional view illustrating the present invention; Figure 5 This is a schematic diagram of the structure of the present invention when folded; Figure 6 It is a cross-sectional view of the present invention when folded; Figure 7 A side view of the bridge housing of the present invention; Figure 8 It is a front view of the Y-shaped damping leaf spring of the present invention; Figure 9 This is a schematic structural diagram of the fixed end connecting plate of the present invention; Figure 10 This is a schematic structural diagram of the plug of the present invention; Figure 11 It is a structural schematic diagram of the cotter pin of the present invention; Figure 12 Schematic diagram of the structure of the cushion of the present invention; Figure 13 It is a structural schematic diagram of the core shaft of the present invention.

[0016] In the figure, 101, bridge housing; 101a, Y-type damping leaf spring positioning groove; 101b, Y-type damping leaf spring assembly limiting surface; 101c, split pin semicircular limiting groove; 101d, plug positioning groove; 101e, core shaft positioning hole; 101f, unfolded state limiting surface; 101g, folded state limiting surface; 101h, U-shaped avoidance position; 102, Y-type damping leaf spring; 102a, bridge housing assembly limiting surface 1; 102b, split pin semicircular limiting groove; 102c, core shaft assembly hole; 103, split pin; 104, plug; 104a, bridge housing assembly surface 2; 104b, core shaft positioning hole; 104c, Rotating plate limiting surface; 105, fixed end connecting plate; 105a, core shaft thin end assembly hole; 105b, core shaft thick end assembly hole; 105c, small table positioning column; 105d, small table assembly hole; 105e, expanded state limiting surface; 105f, folded state limiting surface; 105g, buffer pad assembly hole; 106, flip end connecting plate; 107, buffer pad; 107a, expanded state limiting surface; 107b, assembly hook; 108, core shaft; 108a, damping leaf spring assembly outer diameter; 108b, thin end straight grain mounting end; 108c, thick end straight grain mounting end; 200, small table plate body; 201, fixed plate body; 202, flip plate body. DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0019] Below with reference to the embodiment and the attached Figures 1 to 13 , further elaborating on the technical solution of the present invention.

[0020] Example 1 A hidden folding damping hinge, comprising: A bridging housing 101, wherein two sets of Y-shaped damping leaf spring positioning grooves 101a are provided inside the bridging housing 101; Y-shaped damping leaf springs 102, with at least two Y-shaped damping leaf springs 102 being installed in each group of the Y-shaped damping leaf spring positioning grooves 101a; Split pin 103; A plug 104 is installed at the end of the Y-shaped damping leaf spring positioning groove 101a; A connecting plate rotatably disposed on the outer side of the Y-shaped damping leaf spring positioning groove 101a; a buffer pad 107 , one end of which abuts against the bridging housing 101 , and the other end of which abuts against the connecting plate; The core shaft 108 passes through the connecting plate and the bridging housing 101 and forms a friction pair with the Y-shaped damping leaf spring 102 to generate a damping force.

[0021] As a further preferred embodiment, the Y-type damping leaf spring 102 includes a bridging shell assembly limit surface 102a, a cotter pin semicircular limit groove 102b and a core shaft assembly hole 102c. The bridging shell assembly limit surface 102a is arranged corresponding to the Y-type damping leaf spring positioning groove 101a, and the cotter pin 103 is inserted into the cotter pin semicircular limit groove 102b for limiting.

[0022] As a further preferred embodiment, the connecting plate includes a fixed end connecting plate 105 and a flip end connecting plate 106, and the fixed end connecting plate 105 and the flip end connecting plate 106 are both provided with a core shaft thin end assembly hole 105a, a core shaft thick end assembly hole 105b, an expanded state limiting surface 105e, and a folded state limiting surface 105f. The core shaft 108 includes a damping leaf spring assembly outer diameter 108a, a thin end straight groove mounting end 108b, and a thick end straight groove mounting end 108c. The thin end straight groove mounting end 108b is interference inserted into the core shaft thin end assembly hole 105a, and the thick end straight groove mounting end 108c is interference inserted into the core shaft thick end assembly hole 105b. The damping leaf spring assembly outer diameter 108a is inserted into the core shaft assembly hole 102c of the Y-shaped damping leaf spring 102.

[0023] As a further preferred embodiment, the plug 104 is provided with a bridge shell assembly surface 2 104a, a core shaft positioning hole 104b and a rotating plate limiting surface 104c. The bridge shell assembly surface 2 104a can be embedded in the Y-shaped damping leaf spring positioning groove 101a, and the end of the core shaft 108 is inserted into the core shaft positioning hole 104b.

[0024] As a further preferred embodiment, a buffer pad assembly hole 105g is further provided on the fixed end connecting plate 105 and the flip end connecting plate 106, and the buffer pad 107 is arranged in the buffer pad assembly hole 105g.

[0025] As a further preferred embodiment, the bridging shell 101 is also provided with a Y-type damping leaf spring assembly limit surface 101b, a cotter pin semicircular limit groove 101c, a plug positioning groove 101d, a core shaft positioning hole 101e, an unfolded state limit surface 101f, a folded state limit surface 101g and a U-shaped avoidance position 101h. The Y-type damping leaf spring assembly limit surface 101b is used to install the Y-type damping leaf spring 102, the cotter pin semicircular limit groove 101c is used to install the cotter pin 103, the plug positioning groove 101d is used to install the plug 104, and the core shaft positioning hole 101e is used to limit the core shaft 108.

[0026] As a further preferred embodiment, the buffer pad 107 is provided with an expanded state limiting surface 107a and an assembly hook 107b. The assembly hook 107b of the buffer pad 107 is connected to the assembly interface of the bridging shell 101, and the expanded state limiting surface 107a contacts the expanded state limiting surface 101f of the bridging shell 101 to achieve buffering limitation.

[0027] A small table for a car seat, comprising: Hidden folding damping hinge; The small table panel body 200 includes a fixed panel body 201 and a flip panel body 202 . The fixed panel body 201 is connected to the fixed end connecting plate 105 , and the flip panel body 202 is connected to the flip end connecting plate 106 .

[0028] As a further improvement, the fixed end connecting plate 105 and the flip end connecting plate 106 are both provided with a small table board positioning column 106c and a small table board assembly hole 106d, and the small table board positioning column 106c and the small table board assembly hole 106d are used to fix the fixed end connecting plate 105 or the flip end connecting plate 106.

[0029] The method of use of the present invention is as follows: When the small table is needed, fix the fixed end panel 201 of the small table and gently lift the flip end panel 202. At this time, the bridge housing 101 rotates 90 degrees relative to the fixed end connecting plate 105, and the flip end panel 202 is perpendicular to the fixed end panel 201. The flip end panel 202 is further extended, and the flip end connecting plate 106 rotates another 90 degrees relative to the bridge housing 101. The flip end panel 202 is flush with the fixed end panel 201, forming a flat tabletop, providing a stable platform for users.

[0030] When the small table needs to be folded, the fixed end panel 201 of the small table is fixed and the flip end panel 202 is gently folded. The bridge housing 101 is rotated 90 degrees relative to the fixed end connecting plate 105, and the flip end panel 202 is perpendicular to the fixed end panel 201. The flip end panel 202 is further folded and the flip end connecting plate 106 is rotated another 90 degrees relative to the bridge housing 101 until the flip end panel 202 is tightly fitted with the fixed end panel 201. The folding is complete and easy to store.

[0031] The present invention incorporates a self-limiting mechanism within the hinge. When the tray is fully extended, the self-limiting mechanism activates. The expansion-limiting surface 107a of the cushioning pad first contacts the limiting surface 101f of the bridging housing. The soft material of cushioning pad 107 provides a cushioning effect, eliminating any unwanted noise. Subsequently, the expansion-limiting surface 105e of the fixed or flip-end connecting plate contacts the limiting surface 101f of the bridging housing, forming a hard stop. This ensures the tray is stable after flattening and prevents warping.

[0032] When the tray is fully folded, the hinge's internal self-limiting structure engages. The folding-limiting surface 105f of the fixed or flip-end connecting plate contacts the limiting surface 101g of the bridge housing, creating a hard stop and ensuring a tight fold. The L-shaped folding-limiting feature 105f of the connecting plate conceals the gap created by the bridge housing, eliminating unnecessary lines beneath the tray and enhancing its aesthetics.

[0033] During rotation, the core shaft 108 is fixed to the connecting plate, while the Y-shaped damping leaf spring is fixed to the bridge housing 101 via a cotter pin 103. As the bridge housing 101 and the connecting plate rotate relative to each other, the core shaft's outer diameter 108b and the Y-shaped damping leaf spring's mounting hole 102c rotate along the axis. A slight interference fit creates a friction pair, generating a damping force that allows the tabletop to flip smoothly and enhances operational quality.

[0034] The bridging shell 101 of the present invention has a U-shaped avoidance space 101h. When the table top is flattened, the hinge is hidden under the table top; when folded, the covering feature moves into the U-shaped avoidance space 101h to avoid interference, ensuring normal use and aesthetics.

[0035] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A hidden folding damping hinge, characterized in that: include: A bridge housing, wherein two sets of Y-shaped damping leaf spring positioning grooves are provided inside the bridge housing; Y-shaped damping leaf springs, each group of Y-shaped damping leaf spring positioning grooves is equipped with at least two Y-shaped damping leaf springs; Split pin; A plug installed at the end of the positioning groove of the Y-shaped damping leaf spring; A connecting plate rotatably disposed on the outer side of the Y-shaped damping leaf spring positioning groove; a buffer pad, one end of which abuts against the bridging shell, and the other end of which abuts against the connecting plate; A core shaft passes through the connecting plate and the bridge housing and forms a friction pair with the Y-shaped damping leaf spring to generate a damping force.

2. A hidden folding damping hinge according to claim 1, characterized in that: The Y-type damping leaf spring includes a bridge shell assembly limit surface 1, a cotter pin semicircular limit groove and a core shaft assembly hole. The bridge shell assembly limit surface 1 is arranged corresponding to the Y-type damping leaf spring positioning groove, and the cotter pin is inserted into the cotter pin semicircular limit groove for limiting.

3. The hidden folding damping hinge according to claim 2, characterized in that: The connecting plate includes a fixed end connecting plate and a flip end connecting plate, and the fixed end connecting plate and the flip end connecting plate are both provided with a core shaft thin end assembly hole, a core shaft thick end assembly hole expansion state limit surface, and a folded state limit surface. The core shaft includes a damping leaf spring assembly outer diameter, a thin end straight groove mounting end, and a thick end straight groove mounting end. The thin end straight groove mounting end is interference inserted in the core shaft thin end assembly hole, and the thick end straight groove mounting end is interference inserted in the core shaft thick end assembly hole. The damping leaf spring assembly outer diameter is inserted into the core shaft assembly hole of the Y-shaped damping leaf spring.

4. The hidden folding damping hinge according to claim 1, characterized in that: The plug is provided with a second bridging shell assembly surface, a core shaft positioning hole and a rotating plate limiting surface. The second bridging shell assembly surface can be embedded in the Y-shaped damping leaf spring positioning groove, and the end of the core shaft is inserted into the core shaft positioning hole.

5. A hidden folding damping hinge according to claim 3, wherein the fixed end connecting plate and the flip end connecting plate are further provided with a buffer pad assembly hole, and the buffer pad is arranged in the buffer pad assembly hole.

6. A hidden folding damping hinge according to claim 1, wherein the bridging shell is further provided with a Y-shaped damping leaf spring assembly limit surface, a cotter pin semicircular limit groove, a plug positioning groove, a core shaft positioning hole, an unfolded state limit surface, a folded state limit surface and a U-shaped avoidance position, the Y-shaped damping leaf spring assembly limit surface is used to install the Y-shaped damping leaf spring, the cotter pin semicircular limit groove is used for installing the cotter pin, the plug positioning groove is used to install the plug, and the core shaft positioning hole is used to limit the core shaft.

7. The hidden folding damping hinge according to claim 6, characterized in that: The buffer pad is provided with an expanded state limiting surface and an assembly hook. The assembly hook of the buffer pad is connected to the assembly interface of the bridge shell. The expanded state limiting surface contacts the expanded state limiting surface of the bridge shell to achieve buffering and limiting.

8. A small table for a car seat, characterized in that: include: The hidden folding damping hinge according to any one of claims 1 to 7; The small table board body includes a fixed board body and a flip board body, the fixed board body is connected to the fixed end connecting plate, and the flip board body is connected to the flip end connecting plate.

9. A small table for a car seat, characterized in that: The fixed end connecting plate and the flip end connecting plate are both provided with a small table board positioning column and a small table board assembly hole, and the small table board positioning column and the small table board assembly hole are used to fix the fixed end connecting plate or the flip end connecting plate.

Images