Folding table plate and handrail assembly

Abstract

The utility model discloses a folding table board and armrest assembly which comprises a folding mechanism, an extension part and a table board assembly, the folding mechanism is connected with a supporting structure, the extension part and the folding mechanism are rotatably connected in a first plane, the first plane is parallel to a bearing face of the table board assembly, and the extension part and the table board assembly are slidably connected in the first direction. The first plane is parallel to the first direction, the folding mechanism is suitable for deformation so that the extending part can move in the second plane in the circumferential direction, the first plane is parallel to the second plane, the folding mechanism has the advantages of being compact in structure when folded and high in mobility when unfolded, and the table board can obtain a larger coverage range when used.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, specifically to a folding table and armrest assembly. Background Technology

[0002] With the development of automobiles, people's requirements for the comfort features in the car are gradually increasing. Among them, the in-car folding table can provide people with a convenient working and entertainment environment. Traditional car armrest folding tables mostly use hinges, dampers and multi-layer folding brackets to achieve storage and unfolding functions.

[0003] However, existing folding tables have the following drawbacks: the folding tables inside the armrests have low flexibility when unfolded and a small coverage area, making it difficult to meet the usage needs of passengers on both sides of the armrests. Summary of the Invention

[0004] One object of this application is to provide a folding table and armrest assembly with a high degree of mobility when unfolded.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a folding tabletop, comprising a folding mechanism, an extension component, and a tabletop assembly. The folding mechanism is connected to a support structure. The extension component and the folding mechanism are rotatably connected in a first plane. The first plane is parallel to the support surface of the tabletop assembly. The extension component and the tabletop assembly are slidably connected along a first direction. The first plane is parallel to the first direction. The folding mechanism is adapted to deform so that the extension component moves in a circumferential direction in a second plane. The first plane and the second plane are parallel.

[0006] In some embodiments, the folding mechanism includes a fixed base, a first folding arm, and a second folding arm. The first folding arm includes a first connecting end and a second connecting end. The first connecting end and the fixed base are rotatably connected. The first connecting end and the second connecting end are rotatably connected. The second folding arm and the second connecting end are rotatably connected. The fixed base and the first connecting end, as well as the second connecting end and the second folding arm, are adapted to cooperate in rotation such that the rotation plane between the first connecting end and the second connecting end is parallel to the second plane.

[0007] In some embodiments, a limiting arm is provided between the first folding arm and the second folding arm. The limiting arm is located on one side of the hinge position of the first folding arm and the second folding arm. A first end of the limiting arm is hinged to the first folding arm, and a second end of the limiting arm is slidably connected to the second folding arm. The limiting arm is adapted to restrict the first folding arm and the second folding arm from approaching each other. The table assembly is located on the side of the first folding arm away from the limiting arm, and the first folding arm is adapted to rotate in the direction of the limiting arm so that the table assembly flips over.

[0008] In some embodiments, the limiting arm protrudes in a curved portion away from the hinge position of the first folding arm and the second folding arm at the hinge position.

[0009] In some embodiments, the second plane is perpendicular to the length direction of the first folding arm, the first folding arm is adapted to rotate until its length direction is parallel to the vertical direction, so that the second plane and the horizontal plane are parallel, and the limiting arm is adapted to limit the included angle α between the first folding arm and the second folding arm, 45°≤α≤135°.

[0010] In some embodiments, the first end of the limiting arm and the second connecting end are hinged; the sliding connection direction between the second end of the limiting arm and the second folding arm is the length direction of the limiting arm; the folding mechanism is adapted to deform such that the first folding arm, the second end of the second folding arm, and the extension member are all received into one side of the table assembly; the first folding arm and the second folding arm are provided with receiving grooves, and the limiting arm is adapted to be fully retracted into the receiving grooves; the first folding arm and the second folding arm are adapted to be folded into a second direction, the second direction being parallel to the first plane, and the sum of the thickness of the second folding arm and the thickness of the extension member being less than the thickness of the first folding arm.

[0011] In some embodiments, the fixed base is provided with an elastic pin, and the first connecting end is provided with a limiting pin groove. The elastic pin and the limiting pin groove are adapted to engage with each other when the folding mechanism is unfolded, so as to restrict the first connecting end from rotating relative to the fixed base.

[0012] In some embodiments, the tabletop assembly includes a first tabletop, a second tabletop, and a hinge shaft. The first tabletop is connected to the extension member. The first tabletop is hinged to the hinge shaft along one side, and the second tabletop is hinged to the hinge shaft along one side. The hinge shaft is adapted to allow the first tabletop and the second tabletop to rotate relative to each other, forming an angle of no more than 180°. The unfolded surface of the tabletop assembly faces the side of the first tabletop away from the extension member. The connection position of the extension member to the tabletop is off-center from the center of the tabletop.

[0013] An armrest assembly includes an armrest portion and any of the aforementioned folding tabletops. The armrest portion has a first receiving cavity. A portion of the folding mechanism, the extension member, and the folding tabletop are adapted to be received within the first receiving cavity. The folding mechanism is adapted to unfold outward from the first receiving cavity, so that the extension member and the folding tabletop can move to the outside of the first receiving cavity.

[0014] In some embodiments, the armrest portion has a second receiving cavity, the fixing seat of the folding mechanism is disposed in the second receiving cavity, at least a portion of the first connecting end of the folding mechanism is received in the second receiving cavity, the first connecting end is adapted to rotate relative to the fixing seat, so that the remaining portion of the folding mechanism can move to the outside of the first receiving cavity; the armrest portion is provided with the first receiving cavity, the second receiving cavity and the charging module in sequence from the rear to the front; the front of the armrest portion protrudes downward.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] 1. The folding table of this application has an extension component on the folding mechanism, which allows the folding table to extend further when it moves to the outside of the handrail, thereby increasing the activity radius of the folding table to meet the usage needs of passengers on both sides of the handrail and provide convenience. The activity of the extension component is adapted to the activity of the folding mechanism, so that the folding table can move stably with the cooperation of the folding mechanism and the extension component, and has good support.

[0017] 2. The armrest assembly of this application is compatible with folding tables, which can store the folded tables after they are folded, making full use of the internal space of the armrest assembly, reducing the space occupied in the vehicle, and achieving a better hiding effect. Attached Figure Description

[0018] Figure 1 This is a perspective view of a folded tabletop in a folded state according to a preferred embodiment of this application.

[0019] Figure 2 This is a top view of a folded tabletop in a folded state according to a preferred embodiment of this application.

[0020] Figure 3 This is a preferred embodiment according to this application. Figure 2 A cross-sectional view along the AA direction.

[0021] Figure 4 This is a top-view perspective view of a folding table in its unfolded state according to a preferred embodiment of this application.

[0022] Figure 5 This is a bottom perspective view of a folding table in its unfolded state according to a preferred embodiment of this application.

[0023] Figure 6 This is a schematic diagram of the armrest assembly according to a preferred embodiment of the present application when the folding table is retracted.

[0024] Figure 7 This is a schematic diagram of the armrest assembly unfolding the folding tabletop according to a preferred embodiment of this application.

[0025] In the figure: 1. Folding mechanism; 11. Fixed base; 111. Elastic pin; 12. First folding arm; 121. First connecting end; 1211. Limiting pin groove; 122. Second connecting end; 13. Second folding arm; 14. Limiting arm; 141. Bending part; 15. Accommodating groove; 2. Extension component; 3. Table assembly; 31. First table; 32. Second table; 33. Hinge shaft; 4. Armrest part; 41. First accommodating cavity; 42. Second accommodating cavity; 43. Charging module. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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. They should not be construed as limiting the specific protection scope of this application.

[0028] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0030] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0031] like Figures 1 to 7As shown, this application provides a folding tabletop, including a folding mechanism 1, an extension component 2, and a tabletop assembly 3. The folding mechanism 1 is connected to a support structure (typically an armrest assembly in this application). The extension component 2 and the folding mechanism 1 are rotatably connected in a first plane. The first plane is parallel to the support surface of the tabletop assembly 3. This design ensures the stability of the support surface of the tabletop assembly 3 during the rotation of the extension component 2 relative to the folding mechanism 1, reduces the deflection and tilt of the support surface, and thus improves the support stability and practicality of the tabletop assembly 3.

[0032] The extension component 2 and the tabletop assembly 3 are slidably connected along the first direction. The first plane and the first direction are parallel. The tabletop assembly 3 is adapted to slide relative to the extension component 2. By restricting the first direction to be parallel to the first plane, the tabletop assembly 3 can ensure the stability of the supporting surface during the sliding process relative to the extension component 2, reduce the deflection and tilt of the supporting surface, and thus improve the supporting stability and practicality of the tabletop assembly 3.

[0033] It is understandable that the rotation of the extension component 2 and the folding mechanism 1, as well as the sliding of the tabletop assembly 3 and the extension component 2, enable the tabletop assembly 3 to expand its coverage area by rotating the extension component 2 relative to the folding mechanism 1, thereby expanding the circumference range. This allows the tabletop assembly 3 to extend further and be closer to the users on both sides for convenience and practicality, solving the problem of the limited usable area after the traditional folding tabletop is unfolded.

[0034] The folding mechanism 1 is adapted to deform so that the extension member 2 moves in a circumferential direction in the second plane. The first plane and the second plane are parallel. By restricting the first plane and the second plane to be parallel, the table assembly 3 can ensure the stability of the supporting surface during the sliding process relative to the extension member 2, reduce the deflection and tilt of the supporting surface, and thus improve the supporting stability and practicality of the table assembly 3.

[0035] like Figures 1 to 5In the illustrated embodiment, the folding mechanism 1 includes a fixed base 11, a first folding arm 12, and a second folding arm 13. The first folding arm 12 includes a first connecting end 121 and a second connecting end 122. The first connecting end 121 and the fixed base 11 are rotatably connected, as are the first connecting end 121 and the second connecting end 122. The second folding arm 13 and the second connecting end 122 are rotatably connected. The fixed base 11 and the first connecting end 121, as well as the second connecting end 122 and the second folding arm 13, are adapted to rotate in coordination, such that the rotation plane between the first connecting end 121 and the second connecting end 122 is parallel to the second plane. When the folding mechanism 1 is unfolded, the first connecting end 121 remains connected to the support structure through the fixed base 11. Through the relative rotation between the first connecting end 121 and the second connecting end 122, the first folding arm 12, the extension component 2, and the table assembly 3 can move together relative to the first connecting end 121, thereby changing the position of the table assembly 3.

[0036] In some embodiments, the rotational connection plane of the first connecting end 121 and the fixed base 11 is parallel to the rotational connection plane of the second connecting end 122 and the second folding arm 13, and perpendicular to the rotational plane between the first connecting end 121 and the second connecting end 122. The first plane is configured as a horizontal plane, thereby ensuring that the supporting surface of the table assembly 3 is a horizontal plane, and that the supporting surface remains within the horizontal plane when the table assembly 3 moves relative to the first connecting end 121, thereby improving the supporting stability and practicality of the table assembly 3.

[0037] like Figures 1 to 4 In the illustrated embodiment, a limiting arm 14 is provided between the first folding arm 12 and the second folding arm 13. The limiting arm 14 is located on one side of the hinge position of the first folding arm 12 and the second folding arm 13. The first end of the limiting arm 14 is hinged to the first folding arm 12, and the second end of the limiting arm 14 is slidably connected to the second folding arm 13. The limiting arm 14 is adapted to restrict the first folding arm 12 and the second folding arm 13 from approaching each other. When the first folding arm 12 and the second folding arm 13 approach each other, the second end of the limiting arm 14 slides relative to the second folding arm 13, and a triangular support can be formed between the limiting arm 14, the first folding arm 12 and the second folding arm 13 to achieve support reinforcement of the second support arm and improve the support stability of the table assembly 3.

[0038] like Figures 1 to 5 In the embodiment shown, the table assembly 3 is located on the side of the first folding arm 12 away from the limiting arm 14. The first folding arm 12 is adapted to rotate in the direction of the limiting arm 14 so that the table assembly 3 can be flipped. This can reduce the structural interference of the table assembly 3 on the folding mechanism 1 when it is deformed, and make the size design of the table assembly 3 more flexible.

[0039] like Figures 1 to 4In the embodiment shown, the limiting arm 14 protrudes from the hinge position of the first folding arm 12 and the second folding arm 13 to form a bent portion 141 away from the hinge position of the first folding arm 12 and the second folding arm 13. This design of the limiting arm 14 can not only avoid the hinge position of the first folding arm 12 and the second folding arm 13, but also strengthen the structural strength of the limiting arm 14 and play a more stable supporting role.

[0040] In some embodiments, the second plane is perpendicular to the length direction of the first folding arm 12, and the first folding arm 12 is adapted to rotate until its length direction is parallel to the vertical direction, so that the second plane is parallel to the horizontal plane. The limiting arm 14 is adapted to limit the included angle α of the first folding arm 12 and the second folding arm 13, 45°≤α≤135°, preferably 90°, so that the folding mechanism 1 can have both a large unfolding range and high structural stability.

[0041] like Figures 1 to 4 In the embodiment shown, the first end and the second connecting end 122 of the limiting arm 14 are hinged, which can reduce the interference of the limiting arm 14 on the first connecting end 121, so as to avoid affecting the relative rotation of the first connecting end 121 and the second connecting end 122, thereby ensuring the flexibility of the folding mechanism 1 after it is unfolded.

[0042] like Figures 1 to 4 In the embodiment shown, the sliding connection direction between the second end of the limiting arm 14 and the second folding arm 13 is the length direction of the limiting arm 14, which can make full use of the length of the second folding arm 13 and improve the structural compactness.

[0043] In some embodiments, the folding mechanism 1 is adapted to deform such that the second ends of the first folding arm 12 and the second folding arm 13 and the extension component 2 are all housed to one side of the table assembly 3, such that the second ends of the first folding arm 12 and the second folding arm 13 and the extension component 2 are adapted to be hidden on one side of the table assembly 3, and the overall integrity is stronger when the folding table is folded.

[0044] like Figures 1 to 3 In the embodiment shown, the first folding arm 12 and the second folding arm 13 are provided with receiving grooves 15. Specifically, the second connecting end 122 of the first folding arm 12 and the second folding arm 13 are provided with receiving grooves 15. The limiting arm 14 is adapted to be fully retracted into the receiving groove 15. The limiting arm 14 is a hidden structure, which can further improve the structural compactness and reduce space occupation.

[0045] like Figure 3In the embodiment shown, the first folding arm 12 and the second folding arm 13 are adapted to be folded to a second direction, which is parallel to the first plane. The sum of the thickness of the second folding arm 13 and the thickness of the extension member 2 is less than the thickness of the first folding arm 12, which can reduce the overall thickness of the folding mechanism 1, improve the structural compactness, and facilitate its placement inside the handrail on the vehicle.

[0046] like Figure 1 , 3 In the embodiment shown in Figure 5, the fixed base 11 is provided with an elastic pin 111, and the first connecting end 121 is provided with a limiting pin groove 1211. The elastic pin 111 and the limiting pin groove 1211 are adapted to engage with each other when the folding mechanism 1 is unfolded, so as to restrict the first connecting end 121 from rotating relative to the fixed base 11. The engagement of the elastic pin 111 and the limiting pin groove 1211 can achieve the effect of structural stability, improve the coordination stability between the first connecting end 121 and the fixed base 11 in the unfolded state, and reduce the probability that the table assembly 3 will fold, flip and tilt on its own due to the instability of the first connecting end 121.

[0047] Specifically, the elastic pin 111 and the limiting pin groove 1211 are radially movable along the axis of rotation between the fixed base 11 and the first connecting end 121. When the first connecting end 121 rotates relative to the fixed base 11 until the elastic pin 111 and the limiting pin groove 1211 are aligned, the elastic pin 111 is adapted to pop out into the limiting pin groove 1211 and engage with the limiting pin groove 1211.

[0048] It is understandable that by increasing the number of elastic pin slots 1211, the folding mechanism 1 can be unfolded to different angles.

[0049] like Figure 3 In the embodiment shown, the top of the elastic pin 111 is arc-shaped, so that when the external force on the first connecting end 121 exceeds a certain force, the elastic pin 111 and the limiting pin groove 1211 are suitable for disengaging, and the folding mechanism 1 can perform a folding operation. It is understood that since the force transmitted from the table assembly 3 to the first connecting end 121 through the second folding arm 13 and the first folding arm 12 is difficult to coincide with the force in the direction of disengaging the elastic pin 111 and the limiting pin groove 1211, the elastic pin 111 and the limiting pin groove 1211 are not easy to disengage when using the table assembly 3.

[0050] In some embodiments, the resilient pin 111 includes a pin shaft and a spring.

[0051] like Figures 1 to 5In the illustrated embodiment, the tabletop assembly 3 includes a first tabletop 31, a second tabletop 32, and a hinge shaft 33. The first tabletop 31 is connected to the extension member 2. The first tabletop 31 is hinged to the hinge shaft 33 along one side, and the second tabletop 32 is hinged to the hinge shaft 33 along one side. The hinge shaft 33 is adapted to allow the first tabletop 31 and the second tabletop 32 to rotate relative to each other and form an angle of no more than 180°. When the tabletop assembly 3 is unfolded, its surface faces the side of the first tabletop 31 away from the extension member 2. The tabletop assembly 3 is an unfoldable and expandable structure, which can increase the supporting area by unfolding, thereby facilitating use and effectively increasing practicality.

[0052] like Figures 1 to 4 In the embodiment shown, the connection position between the extension member 2 and the tabletop assembly 3 (or the first tabletop 31 when the tabletop assembly 3 includes the first tabletop 31 and the second tabletop 32) is off-center from the tabletop. It can be understood that the closer the connection position between the extension member 2 and the tabletop assembly 3 is to the edge of the tabletop assembly 3, the greater the range of rotation of the tabletop assembly 3 with the extension member 2 as the center, and the greater the coverage area it can support.

[0053] like Figures 6 to 7 As shown, this application also provides an armrest assembly, including an armrest portion 4 and a folding tabletop of any of the above embodiments. The armrest portion 4 has a first receiving cavity 41. A portion of the folding mechanism 1 (which in this application typically includes a second connecting end 122 and a second folding arm 13), the extension member 2, and the folding tabletop are adapted to be received in the first receiving cavity 41. The folding mechanism 1 is adapted to move outward from the first receiving cavity 41, and to allow the extension member 2 and the folding tabletop to move to the outside of the first receiving cavity 41. The first receiving cavity 41 can accommodate the folding tabletop in the folded state, restricting the use of the folding tabletop. The folding tabletop can be flipped from above the first receiving cavity 41 to the outside of the armrest portion 4 for use.

[0054] In some embodiments, a second receiving cavity 42 is provided on the armrest portion 4, and the fixing seat 11 of the folding mechanism 1 is disposed in the second receiving cavity 42. At least a portion of the first connecting end 121 of the folding mechanism 1 is received in the second receiving cavity 42. The first connecting end 121 is adapted to rotate relative to the fixing seat 11 so that the remaining portion of the folding mechanism 1 (generally including the second connecting end 122 and the second folding arm 13 in this application) moves to the outside of the first receiving cavity 41. In addition to supporting and restricting the first connecting end 121 when the folding mechanism 1 is opened, the second receiving cavity 42 also improves the stability of the first folding arm 12. Qualitatively, when the folding table is unfolded, the structure of the folding mechanism 1 located in the first accommodating cavity 41 (which in this application typically includes the second connecting end 122 and the second folding arm 13) can be completely moved out of the first accommodating cavity 41. If the armrest is equipped with a cover plate, it can cover and shield the first accommodating cavity 41. At this time, the presence of the second accommodating cavity 42 can ensure the basic support of the unfolded folding mechanism 1 and does not affect the coverage of the first accommodating cavity 41 by the cover plate. At the same time, the cover plate can also restrict the rotation between the first connecting end 121 and the fixed seat 11. With the help of the elastic pin 111 and the limiting pin groove 1211, the stability of the unfolded first folding arm 12 can be guaranteed.

[0055] In some embodiments, the armrest 4 is provided with a first accommodating cavity 41, a second accommodating cavity 42 and a charging module 43 in sequence from the rear to the front. The charging module 43 is preferably a wireless charging module 43. When the folding mechanism 1 is unfolded, the table assembly 3 is adapted to flip up and unfold towards the top and front of the charging module 43, which is ergonomic and convenient to use.

[0056] In some embodiments, the front of the armrest 4 protrudes downward, allowing the front of the armrest 4 to contact the object below first (for example, when the armrest 4 is installed on the back of the second row of a car, the armrest 4 is adapted to rotate downward to open, exposing the first receiving cavity 41 upward, at which time the front of the armrest 4 is adapted to contact the second row of the car seat cushion before other parts), thus playing a buffering and supporting role.

[0057] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are only the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope of this application. All such changes and modifications fall within the scope of this application as claimed. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A folding table top, characterized by: The device includes a folding mechanism, an extension component, and a tabletop assembly. The folding mechanism is connected to a support structure. The extension component and the folding mechanism are rotatably connected in a first plane, which is parallel to the support surface of the tabletop assembly. The extension component and the tabletop assembly are slidably connected along a first direction, which is parallel to the first plane. The folding mechanism is adapted to deform so that the extension component moves in a circumferential direction in a second plane, which is parallel to the first plane.

2. A folding table top as claimed in claim 1, wherein: The folding mechanism includes a fixed base, a first folding arm, and a second folding arm. The first folding arm includes a first connecting end and a second connecting end. The first connecting end and the fixed base are rotatably connected. The first connecting end and the second connecting end are rotatably connected. The second folding arm and the second connecting end are rotatably connected. The fixed base and the first connecting end, as well as the second connecting end and the second folding arm, are adapted to cooperate in rotation, so that the rotation plane between the first connecting end and the second connecting end is parallel to the second plane.

3. A folding table top as claimed in claim 2, wherein: A limiting arm is provided between the first folding arm and the second folding arm. The limiting arm is located on one side of the hinge position of the first folding arm and the second folding arm. The first end of the limiting arm is hinged to the first folding arm, and the second end of the limiting arm is slidably connected to the second folding arm. The limiting arm is adapted to restrict the first folding arm and the second folding arm from getting close to each other. The table assembly is located on the side of the first folding arm away from the limiting arm. The first folding arm is adapted to rotate in the direction of the limiting arm so that the table assembly can be flipped.

4. A folding table top as claimed in claim 3, wherein: The limiting arm protrudes in a curved portion away from the hinge position of the first folding arm and the second folding arm at the hinge position.

5. A folding table top as claimed in claim 3, wherein: The second plane is perpendicular to the length direction of the first folding arm, and the first folding arm is adapted to rotate until its length direction is parallel to the vertical direction so that the second plane is parallel to the horizontal plane. The limiting arm is adapted to limit the included angle α between the first folding arm and the second folding arm, 45°≤α≤135°.

6. A folding table top as claimed in claim 3, wherein: The first end of the limiting arm and the second connecting end are hinged; the sliding connection direction between the second end of the limiting arm and the second folding arm is the length direction of the limiting arm; the folding mechanism is adapted to deform so that the second ends of the first folding arm and the second folding arm and the extension component are all received into one side of the table assembly; the first folding arm and the second folding arm are provided with receiving grooves, and the limiting arm is adapted to be fully retracted into the receiving grooves; the first folding arm and the second folding arm are adapted to be folded into a second direction, the second direction being parallel to the first plane, and the sum of the thickness of the second folding arm and the thickness of the extension component is less than the thickness of the first folding arm.

7. A folding table top as claimed in claim 2, wherein: The fixed base is provided with an elastic pin, and the first connecting end is provided with a limiting pin groove. The elastic pin and the limiting pin groove are adapted to engage with each other when the folding mechanism is unfolded, so as to restrict the first connecting end from rotating relative to the fixed base.

8. A folding table top as claimed in claim 1, wherein: The tabletop assembly includes a first tabletop, a second tabletop, and a hinge shaft. The first tabletop is connected to the extension member. The first tabletop is hinged to the hinge shaft along one side, and the second tabletop is hinged to the hinge shaft along one side. The hinge shaft is adapted to allow the first tabletop and the second tabletop to rotate relative to each other, forming an angle of no more than 180°. The unfolded surface of the tabletop assembly faces the side of the first tabletop away from the extension member. The connection position of the extension member to the tabletop is off-center from the tabletop.

9. A handrail assembly characterized by: The device includes an armrest and a folding table as described in any one of claims 1 to 8. The armrest has a first receiving cavity, and a portion of the folding mechanism, the extension member, and the folding table are adapted to be received within the first receiving cavity. The folding mechanism is adapted to unfold outward from the first receiving cavity so that the extension member and the folding table can move to the outside of the first receiving cavity.

10. A handrail assembly as claimed in claim 9, wherein: The armrest portion has a second receiving cavity, the fixing seat of the folding mechanism is disposed in the second receiving cavity, at least a portion of the first connecting end of the folding mechanism is received in the second receiving cavity, the first connecting end is adapted to rotate relative to the fixing seat, so that the remaining part of the folding mechanism can move to the outside of the first receiving cavity; the armrest portion is provided with the first receiving cavity, the second receiving cavity and the charging module in sequence from the rear to the front; the front part of the armrest portion protrudes downward.

Images