Table plate connecting assembly, table plate assembly, seat and vehicle

Abstract

The invention relates to a table plate connecting assembly, a table plate assembly, a seat and a vehicle. The table plate connecting assembly comprises a first rod, a second rod and a connecting part. The first rod comprises a rod body and an extension part arranged at the end of the rod body. The size of the extension part in the first direction is smaller than that of the rod body in the first direction. The first rod further comprises a limiting part arranged at the end, facing the extension part, of the rod body. And the second rod is pivotally connected with the extension part. The second rod comprises a far end, a near end and a groove part; the far end is far away from the rod body; the near end faces the rod body; the groove part is recessed from the near end; a pivot axis of the first lever and the second lever extends in a first direction. The connecting part comprises a connecting block arranged in the groove part. When the force borne by the far end is smaller than or equal to a threshold value, the relative rotation of the first rod and the second rod is limited; when the force borne by the far end is larger than a threshold value, the first rod and the second rod rotate relatively.

Description

Technical Field

[0001] The present application relates to the field of transportation means, and particularly to a table connection assembly, a table assembly, a seat and a transportation means. Background Art

[0002] In transportation means such as high-speed trains and airplanes, a table assembly is usually provided on the back side of the seat, so that passengers located on the back side of the seat can use the table assembly for activities such as working and eating. Currently, some vehicles also carry a table assembly on the back side of the front seats. The setting of the table assembly can facilitate the activities of passengers when taking transportation means.

[0003] The table assembly can be pivotally opened and closed according to the usage needs of passengers. The opening and closing driving methods of the table assembly are divided into electric type and manual type. However, no matter which driving method is used, in order to improve the driving safety of the transportation means, the transportation means will prompt not to use the table assembly as much as possible during driving, so as to avoid the table assembly causing harm to passengers when a collision occurs. But in fact, this goes against the purpose of setting the table assembly. Summary of the Invention

[0004] The present application provides a table connection assembly, a table assembly, a seat and a transportation means to solve some or all of the deficiencies in the related art.

[0005] In a first aspect of the present application, a table connection assembly is provided, including:

[0006] A first rod, including a rod body and an extension portion provided at an end of the rod body; the size of the extension portion in a first direction is smaller than the size of the rod body in the first direction; the first rod further includes a limiting portion provided at an end of the rod body facing the extension portion;

[0007] A second rod, pivotally connected to the extension portion; the second rod includes a distal end, a proximal end and a groove portion; the distal end is away from the rod body; the proximal end faces the rod body; the groove portion is recessed from the proximal end; the pivot axis of the first rod and the second rod extends along the first direction; and

[0008] A connection portion, including a connection block provided in the groove portion;

[0009] Wherein, when the force received by the distal end is less than or equal to a threshold value, the limiting portion cooperates with the connection block to limit the relative rotation of the first rod and the second rod;

[0010] When the force received by the distal end is greater than the threshold value, the limiting portion pushes the connection block to move away from the first rod, so that the proximal end can move in a direction opposite to the direction of the force and the first rod and the second rod rotate relative to each other.

[0011] Further, the limiting portion is a recessed portion extending away from the second rod from the end face of the rod body; the recessed portion includes a guiding inclined surface provided on one side in the second direction, such that the recessed portion narrows in a direction away from the second rod; the connecting block includes a mating portion protruding from the groove portion; the mating portion extends into the recessed portion; the mating portion abuts against the guiding inclined surface; the second direction is different from the first direction.

[0012] Further, the mating portion is provided with a mating inclined surface; when in a working state, the mating inclined surface fits with the guiding inclined surface.

[0013] Further, the recessed portion includes a stress plane oppositely arranged with the guiding inclined surface in the second direction; the stress plane is parallel to the extending direction of the first rod; the mating portion abuts against the stress plane.

[0014] Further, the connecting portion further includes an elastic member; the elastic member is arranged in the groove portion, and one end abuts against the groove portion and the other end abuts against the connecting block; the elastic member is used for applying a force to the connecting block from the second rod towards the first rod.

[0015] Further, the included angle between the guiding inclined surface and the plane formed by the extending direction of the first rod and the first direction is greater than or equal to 20 degrees and less than or equal to 60 degrees.

[0016] Further, the second rod includes a cover plate; the cover plate is arranged on a side of the second rod away from the extension portion and covers the groove portion; and / or,

[0017] The surface of the extension portion away from the second rod is flush with the rod body; the surface of the second rod away from the extension portion is flush with the rod body; and / or,

[0018] The connecting block includes a guiding groove with an extending direction parallel to the second rod; a protruding portion is arranged on a side of the extension portion facing the second rod; the protruding portion is arranged in the guiding groove and relatively moves with the guiding groove when the table board connecting assembly is in a collapsed state.

[0019] A second aspect of the present application can provide a table board assembly, including a table board body and the table board connecting assembly described in the foregoing embodiments; the distal end is connected to the table board body; one end of the first rod away from the second rod is used for pivotally connecting with a to-be-connected member.

[0020] A third aspect of the present application provides a seat, including a sitting side and a back side arranged oppositely, and the table board assembly described in the foregoing embodiments; one end of the first rod away from the second rod is pivotally connected to the back side;

[0021] The table board assembly includes a retracted state and a use state: when in the retracted state, the table board body is disposed close to the back side; when in the use state, the table board body is away from the back side.

[0022] When the table board assembly is in the use state and the force received by the distal end is greater than the threshold value, the proximal end moves in a direction away from the ground.

[0023] The fourth aspect of the present application can provide a vehicle, including the seat described in the foregoing embodiments.

[0024] The technical solutions provided by the embodiments of the present application may include the following beneficial effects:

[0025] As can be seen from the above embodiments, the table board connection assembly of the present application can be deformed when the bearing force is greater than the threshold value. When the table board connection assembly is assembled to the table board assembly, the table board connection assembly allows the table board assembly to deform following the impact of the passenger's body, avoiding hard collisions with the passenger's body in two directions, and at the same time avoiding excessive stress at the connection position between the table board assembly and the seat, thereby causing damage to the table board assembly and the seat. The table board connection assembly of the present application not only has a simple structure, but also allows the table board body not to be structurally modified, which is beneficial to reducing the iteration cost of the table board assembly.

[0026] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 A simplified side view of an embodiment of the seat of the present application is shown;

[0029] Figure 2 An overall perspective view of an embodiment of the table board connection assembly of the present application is shown, wherein the table board connection assembly is in a working state;

[0030] Figure 3 Shown as Figure 1 An overall schematic view of the table board connection assembly shown in a collapsed state;

[0031] Figure 4 Shown as Figure 1 An exploded view of the table board connection assembly shown;

[0032] Figure 5 Shown is a simplified internal schematic diagram of an embodiment of the vehicle of the present application;

[0033] Figure 6 Shown is a partial schematic diagram of another embodiment of the seat of the present application.

[0034] Description of reference numerals:

[0035] 100 Table board assembly, 1 Table board connection assembly, 11 First rod, 111 Rod body, 112 Extension part, 1121 Protrusion part, 1122 First pivot hole, 113 Limiting part, 1131 Recessed part, 1132 Guiding inclined plane, 1133 Force-bearing plane, 12 Second rod, 121 Groove part, 122 Cover plate, 1221 Third pivot hole, 123 Second pivot hole, 124 Distal end, 125 Proximal end, 13 Connection part, 131 Connection block, 1311 Fitting part, 1312 Fitting inclined plane, 1313 Guide groove, 132 Elastic part, 2 Table board body, 3 Table board link, 200 Seat, 210 Riding side, 220 Back side, X First direction, Z Second direction, Y Third direction, A Pivot axis, D1 Dimension of the extension part in the first direction, D2 Dimension of the rod body in the first direction. Detailed implementation manners

[0036] Here, the technical solutions in the embodiments (or "implementation manners") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements.

[0037] If there are terms related to directional indication or positional relationship in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance.

[0038] Referring to Figure 1 , in the first aspect of the present application, a table board assembly 100 is provided. The table board assembly 100 includes a table board connection assembly 1 and a table board body 2. The table board body 2 is connected to the to-be-connected member through the table board connection assembly 1. As Figure 1As shown, the tabletop assembly 100 is connected to the seat 200, and the seat 200 is the component to be connected. In other embodiments, the tabletop assembly 100 can be connected to a wall, and the wall is the component to be connected. The following will take the tabletop assembly 100 and the seat 200 as examples for illustration, but the embodiments described for the seat 200 can also be equally applied to the embodiments where the component to be connected is other objects.

[0039] The seat 200 includes a seating side 210 and a back side 220 that are oppositely arranged. The tabletop assembly 100 is disposed on the back side 220 and includes a retracted state and a use state: when the tabletop assembly 100 is in the retracted state, the tabletop body 2 is disposed close to the back side 220; when the tabletop assembly 100 is in the use state, the tabletop body 2 is away from the back side 220, that is Figure 1 the state shown. In this way, the passengers located behind the seat 200 can adjust the state of the tabletop assembly 100 according to their own needs. When the tabletop assembly 100 is not needed, the tabletop assembly 100 is switched to the retracted state, so that the tabletop assembly 100 occupies the activity space of the passengers.

[0040] Referring Figures 2 to 4 to, the table connection assembly 1 of the present application includes a first rod 11 and a second rod 12. The first rod 11 includes a rod body 111 and an extension part 112 provided at an end of the rod body 111. The dimension D1 of the extension part 112 in the first direction X is smaller than the dimension D2 of the rod body 111 in the first direction X. The second rod 12 is pivotally connected to the extension part 112, and the pivot axis A extends along the first direction X.

[0041] The second rod 12 includes a distal end 124 and a proximal end 125. The distal end 124 is the end away from the rod body 111. The proximal end 125 is the end facing the rod body 111. The distal end 124 is connected to the tabletop body 2. One end of the first rod 11 away from the second rod 12 is pivotally connected to the back side 220 of the seat 200, thereby realizing the connection between the tabletop body 2 and the seat 200. Among them, the first rod 11 further includes a limiting part 113 provided at one end of the rod body 111 facing the extension part 112. The second rod 12 includes a groove part 121 recessed from the proximal end 125. The table connection assembly 1 of the present application further includes a connection part 13. The connection part 13 includes a connection block 131 provided in the groove part 121. The smaller dimension D1 of the extension part 112 enables the second rod 12 to have a surface opposite to the rod body 111 while being pivotally connected to the first rod 11, so that the connection block 131 is provided for connection.

[0042] During the use of the tabletop connection assembly 1, the tabletop connection assembly 1 may be subjected to external forces. Since the distal end 125 is connected to the tabletop body 2, when the tabletop body 2 bears the force applied by an object or a passenger, the tabletop body 2 will conduct the force to the distal end 125. For the sake of brevity of description, the tabletop connection assembly 1 will be described below as including a working state and a collapsing state:

[0043] When the tabletop connection assembly 1 is in the working state, at this time the force received by the distal end 124 is less than or equal to the threshold value, then the limiting portion 113 cooperates with the connecting block 131 to limit the relative rotation of the first rod 11 and the second rod 12, as Figure 2 shown;

[0044] When the tabletop connection assembly 1 is in the collapsing state, at this time the force received by the distal end 124 is greater than the threshold value, then the limiting portion 113 pushes the connecting block 131 to move away from the first rod 11, so that the proximal end 125 can move in the direction opposite to the direction of the force and make the first rod 11 and the second rod 12 move relatively, as Figure 4 shown.

[0045] In the embodiment shown in the accompanying drawings, the force received by the distal end 124 is opposite to the second direction Z. Therefore, when the tabletop connection assembly 1 is in the collapsing state, the proximal end 125 moves along the second direction Z. By such a setting, when the distal end 124 receives a force opposite to the second direction Z, the second rod 12 exerts a force on the connecting block 131 in the direction of the second direction Z. When the force exceeds the maximum threshold value that the tabletop connection assembly 1 can bear, the limiting portion 113, under the cooperation of the mating portion 1311, pushes the connecting block 131 to move away from the first rod 11, so that the connecting block 131 and the first rod 11 are disengaged and the proximal end 125 is allowed to move toward the second direction Z, thereby forming a pivot of the second rod 12 and the first rod 11. Thus, the connection form of the tabletop connection assembly 1 changes from Figure 2 the state shown to Figure 4 the state shown.

[0046] Since the distal end 124 is connected to the tabletop body 2, when the tabletop connection assembly 1 is in the collapsing state, the tabletop body 2 pivots with the first rod 11 driven by the second rod 12. Combining Figure 5, when the tabletop assembly 100 is connected to the seat 200, the second direction Z is the direction away from the ground. When the tabletop assembly 100 is in the use state (the state shown by the black line), passengers can perform activities such as working, studying, or dining through the tabletop body 2. When the passenger moves forward and applies a force opposite to the second direction Z to the end of the tabletop body 2 away from the table connection assembly 1, a torque is generated at the connection part 13. When the torque is greater than the maximum threshold that the connection part 13 can withstand, the limiting part 113 pushes the connection block 131 away from the first rod 11 and moves, causing the proximal end 125 to move along the second direction Z and pivot with the first rod 11. Since the proximal end 125 moves along the second direction Z, the distal end 124 drives the tabletop body 2 to move in the direction opposite to the second direction Z, forming a collapsed state as shown by the orange line.

[0047] By setting it in this way, the tabletop assembly 100 can deform following the impact of the passenger's body, avoiding injury to the passenger's body and also preventing damage to the tabletop assembly 100 and the seat 200 due to excessive force at the connection position between the tabletop assembly 100 and the seat 200. And compared with the solution of setting the tabletop body 2 as a telescopic member, the table connection assembly 1 of the present application not only has a simple structure, but also allows the tabletop body 2 not to be structurally modified, which is beneficial to reducing the iteration cost of the tabletop assembly 100.

[0048] Of course, in other embodiments, the force received by the distal end 124 is opposite to the second direction Z. Then when the table connection assembly 1 is in the collapsed state, the proximal end 125 moves in the direction opposite to the second direction Z.

[0049] As Figure 1 shown in the embodiment, the tabletop assembly 100 is a common single-rotating shaft type of tabletop assembly 100. That is, the end of the first rod 11 away from the second rod 12 is pivotally connected to the back side 220 of the seat 200, and the distal end 124 is directly fixedly connected to the tabletop body 2. Then the tabletop body 2 can pivot around the connection point of the first rod 11 and the back side 220, so as to switch between the use state and the retracted state. And the table connection assembly 1 of the present application allows the tabletop assembly 100 to achieve a collapsed deformation when receiving a force opposite to the second direction Z. It can be seen that Figure 1 For the tabletop assembly 100 in the shown embodiment, there is no need to conduct additional design and production for the tabletop body 2. Those skilled in the art only need to replace the ordinary connecting rod with the table connection assembly 1 of the present application, which is beneficial to reducing costs and realizing batch replacement.

[0050] In the embodiment where the seat 200 is assembled to a transportation vehicle (such as an airplane, a train, high-speed railway equipment, a vehicle, etc.), when the driving speed of the transportation vehicle drops sharply, the passenger moves towards the tabletop assembly 100 along the third direction Y under the action of inertia. However, under the restraint of the seat belt, the upper body and head of the passenger rotate around the hip. At this time, the passenger, asFigure 5 As shown, the upper body and the head rotate and move towards the table board assembly 100 with the hip as the axis, applying a force along the third direction Y (the direction indicated by the arrow in the attached drawing) and opposite to the second direction Z to the side of the table board body 2 away from the table board connection assembly 1. If the table board assembly 100 can only slide and collapse along the third direction Y, the table board body 2 still applies a reaction force along the second direction Z to the passenger, which may cause injury to the passenger.

[0051] The table board connection assembly 1 of the present application enables one end of the table board body 2 provided in the transportation vehicle to move along the second direction Z when impacted by the passenger's body. Then, the end of the table board body 2 that is in direct contact with the passenger and is away from the first rod 11 moves in the direction opposite to the second direction Z. Under the action of the pivotal connection between the first rod 11 and the second rod 12, the table board body 2 pivots in the direction opposite to the second direction Z towards the third direction Y. In this way, the table board body 2 generates displacements in the third direction Y and the opposite direction of the second direction Z, avoiding hard collisions with the passenger's body from two directions.

[0052] It should be noted that the first direction X, the second direction Z, and the third direction Y are distinct from each other in pairs, and can be perpendicular to each other in pairs as shown in the attached drawing, or can be at any other angles to each other in pairs. In addition, the second direction Z of the present application is a single direction. That is, when the table board connection assembly 1 is in a collapsed state, the moving direction of one end of the second rod 12 towards the rod body 111 is the second direction Z. Similarly, the third direction Y is also a single direction, that is, from the table board assembly 100 towards the dorsal side 220 direction. Therefore, the movement along the second direction Z or the third direction Y mentioned in the text should be understood as moving in the direction of the arrow shown in the attached drawing, rather than moving in the direction opposite to the arrow of the reference numeral.

[0053] Back to Figures 2 to 4 , optionally, the limiting portion 113 is provided as a recessed portion 1131 extending from the end face of the rod body 111 away from the second rod 12. The recessed portion 1131 includes a guiding inclined surface 1132 provided on one side of the second direction Z, such that the recessed portion 1131 narrows towards the direction away from the second rod 12. That is, when observing the rod body 111 in the first direction X, the width of the recessed portion 1131 gradually decreases in the third direction Y. The connecting block 131 includes a mating portion 1311 protruding from the groove portion 121. The mating portion 1311 extends into the recessed portion 1131 and abuts against the guiding inclined surface 1132.

[0054] When the tabletop connection assembly 1 switches from the working state to the collapsed state, the mating portion 1311 exerts a force in the second direction Z on the guiding inclined surface 1132 located on the second direction Z side of the recessed portion 1131. This force forms a parallel force parallel to the guiding inclined surface 1132 and a pressure perpendicular to the guiding inclined surface 1132. Under the action of the inclination direction of the guiding inclined surface 1132, the parallel force causes the connecting block 131 to move away from the recessed portion 1131 until it completely leaves the recessed portion 1131. At this time, the rotation restriction of the first rod 11 and the second rod 12 around the pivot axis A is released to form a pivot, so that the tabletop connection assembly 1 is in the collapsed state.

[0055] It can be seen that the cooperation between the guiding inclined surface 1132 and the mating portion 1311 enables the tabletop connection assembly 1 to switch between the collapsed state and the working state through a simple mechanical structure, which is beneficial to reducing the production cost and weight of the tabletop connection assembly 1.

[0056] Of course, in other embodiments, the limiting portion 113 may be provided as a protruding member that moves along the first direction X by electric drive, and the connecting block 131 is provided with a hole for accommodating the protruding member, and the connecting portion 13 is completely accommodated in the groove portion 121. When the distal end 124 receives a force greater than a preset threshold in the direction opposite to the second direction Z, the motor drives the protruding member to move along the first direction X away from the connecting block 131, thereby allowing the second rod 12 and the first rod 11 to pivot. Alternatively, the limiting portion 113 may be provided with an electrically driven push block in the recessed portion 1131, and the mating portion 1311 abuts against the push block in the recessed portion 1131. The push block can push the mating portion 1311 to move away from the recessed portion 1131 under the action of electric drive, thereby allowing the first rod 11 and the second rod 12 to pivot.

[0057] Furthermore, in an alternative embodiment, the mating portion 1311 is provided with a mating inclined surface 1312. When the tabletop connection assembly 1 is in the working state, the mating inclined surface 1312 fits with the guiding inclined surface 1132. The mating inclined surface 1312 and the guiding inclined surface 1132 achieve surface-to-surface contact, reducing the pressure of the connecting block 131 on the guiding inclined surface 1132 when the tabletop connection assembly 1 switches to the collapsed state, which is beneficial to improving the service life of the tabletop connection assembly 1.

[0058] Such as Figure 1As shown, one end of the tabletop assembly 100 away from the back side 220 of the seat 200 needs to move along the second direction Z to switch from the use state to the storage state. Therefore, in fact, the movement of the proximal end 125 in the direction opposite to the second direction Z is not desired, otherwise it is easy to cause the pivoting of the second rod 12 and the first rod 11 during the state switching of the tabletop assembly 100, resulting in the deformation of the tabletop assembly 100. Therefore, in some alternative embodiments, the recessed portion 1131 includes a stress plane 1133 disposed opposite to the guiding inclined plane 1132 in the second direction Z. The stress plane 1133 is parallel to the extending direction of the first rod 11. The engaging portion 1311 abuts against the stress plane 1133. Since the stress plane 1133 is parallel to the extending direction of the first rod 11, and when the tabletop connection assembly 1 is in the working state, the second rod 12 and the first rod 11 are parallel, when the engaging portion 1311 is subjected to a force in the direction opposite to the second direction Z, the reaction force exerted by the stress plane 1133 on the engaging portion 1311 does not generate a component parallel to the third direction Y. Therefore, the connecting block 131 does not tend to move towards the inside of the groove portion 121. It can be seen that the setting of the stress plane 1133 can prevent the second rod 12 from pivoting towards the end of the first rod 11 in the direction opposite to the second direction Z.

[0059] Optionally, the angle α formed by the guiding inclined plane 1132 and the plane formed by the extending direction of the first rod 11 and the first direction X is greater than or equal to 20 degrees and less than or equal to 60 degrees. For example, the angle α is 20 degrees, 30 degrees, 40 degrees, 50 degrees, 60 degrees or any value therebetween. As the angle α increases, the moving stroke of the connecting block 131 can be reduced, so that the tabletop connection assembly 1 can be more easily switched from the working state to the collapsed state. As the angle α decreases, the threshold value of the force that the tabletop connection assembly 1 can withstand is higher, but the difficulty of switching the tabletop connection assembly 1 from the working state to the collapsed state also increases. The angle of the angle α within this range can better balance the moving stroke of the connecting block 131 and the bearing threshold of the tabletop connection assembly 1.

[0060] The connecting block 131 can be made of a deformable material, so that it can telescopically enter and protrude from the groove portion 121 along the extending direction of the second rod 12 to realize the reset of the connecting block 131. Or, optionally, the connecting portion 13 further includes an elastic member 132. The elastic member 132 is disposed in the groove portion 121, and one end abuts against the groove portion 121 and the other end abuts against the connecting block 131. The elastic member 132 is used to apply a force from the second rod 12 to the first rod 11 to the connecting block 131. In other words, the elastic member 132 is clamped between the second rod 12 and the connecting block 131 in the groove portion 121 and is in a compressed state.

[0061] When the table board connection assembly 1 is in the working state, the connection block 131 is kept in contact with the guiding inclined surface 1132 under the action of the elastic member 132, so as to prevent the connection block 131 from moving towards the groove portion 121 under external vibration, which may cause unexpected collapse of the table board assembly 100. When the table board connection assembly 1 is in the collapsed state, the passenger or maintenance personnel can connect the first rod 11 and the second rod 12 by pressing the connection block 131 towards the groove portion 121, so as to restore the table board connection assembly 1 to the working state. Under the action of the elastic member 132, the connection block 131 automatically enters the recessed portion 1131, realizing the clamping connection between the first rod 11 and the second rod 12.

[0062] In addition, the table board assembly 100 may place heavy objects such as electronic devices and food. If the strength of the table board connection assembly 1 is insufficient, then the passenger may apply a slight force towards the table board body 2, which may cause the collapse of the table board connection assembly 1. When the passenger places a liquid item with a relatively high temperature on the table board body 2, this may cause injury to the passenger. Therefore, the assembler can adjust the collapse threshold of the table board connection assembly 1 by adjusting the performance of the elastic member 132. The better the elasticity of the elastic member 132, the greater the force exerted by the elastic member 132 on the connection block 131, and the greater the force required for the guiding inclined surface 1132 to push the connection block 131 towards the inside of the groove portion 121. In this way, the strength of the table board connection assembly 1 to form a collapse is improved, enabling the table board assembly 100 to place heavier objects. Of course, if the elasticity of the elastic member 132 is too high, then it may be difficult for the table board connection assembly 1 to collapse during a passenger collision. Therefore, those skilled in the art can reasonably select the performance of the elastic member 132 according to factors such as the driving speed of the vehicle.

[0063] Optionally, in order to improve the appearance of the table board connection assembly 1, the second rod 12 may include a cover plate 122. The cover plate 122 is disposed on the side of the second rod 12 away from the extension portion 112 and covers the groove portion 121. In other words, the groove portion 121 of this embodiment is recessed on the side of the second rod 12 away from the extension portion 112, so as to facilitate the assembler to assemble the connection portion 13 from the outside, without the need to perform assembly operations at the position between the extension portion 112 and the second rod 12. The groove portion 121 may completely penetrate the second rod 12 along the first direction X, or there may be a certain gap between the bottom surface of the groove portion 121 in the first direction X and the extension portion 112. By providing the cover plate 122, the cover plate 122 can hide the groove portion 121, preventing foreign objects from entering the end of the connection block 131 away from the first rod 11, which may cause the connection block 131 to be unable to move towards the groove portion 121, resulting in the collapse failure of the table board connection assembly 1. In addition, the cover plate 122 can also prevent the connection portion 13 from leaving the groove portion 121 along the first direction X due to the bumps during the driving of the vehicle.

[0064] The connection position of the cover plate 122 and the second rod 12 can coincide with the pivot axis A of the first rod 11 and the second rod 12. As Figure 3 shown, the first rod 11 includes a first pivot hole 1122; the second rod 12 includes a second pivot hole 123; the cover plate 122 includes a third pivot hole 1221. The first rod 11, the second rod 12, and the cover plate 122 are connected by passing a fastener through the first pivot hole 1122, the second pivot hole 123, and the third pivot hole 1221. In this embodiment, the pivot axis A passes through the first pivot hole 1122, the second pivot hole 123, and the third pivot hole 1221. Thus, the fastener can not only serve as a pivot connecting member for the first rod 11 and the second rod 12, but also as a connecting member for the cover plate 122 and the second rod 12. It can be seen that this setting method is beneficial to improving the structural compactness of the tabletop connection assembly 1, and improving the assembly efficiency and reducing the use of parts.

[0065] Furthermore, the second pivot hole 123 and the third pivot hole 1221 are set as clearance holes; the first pivot hole 1122 is set as a threaded hole. The fastener is only threadedly connected to the first pivot hole 1122. Thus, when assembling the first rod 11, the second rod 12, and the cover plate 122, the fastener only needs to be threadedly fastened to the first rod 11, which is beneficial to improving the assembly efficiency and at the same time reducing the machining accuracy requirements of the tabletop connection assembly 1. Optionally, the diameters of the first pivot hole 1122, the second pivot hole 123, and the third pivot hole 1221 increase in sequence, so as to avoid the tolerance during machining from causing the fastener to be unable to pass through the first pivot hole 1122, the second pivot hole 123, and the third pivot hole 1221 in sequence.

[0066] In order to further improve the restriction of the moving direction of the connection block 131, optionally, the connection block 131 includes a guiding groove 1313 whose extending direction is parallel to the second rod 12. A protruding portion 1121 is provided on the side of the extending portion 112 facing the second rod 12. The protruding portion 1121 is arranged in the guiding groove 1313 and relatively moves with the guiding groove 1313 when the tabletop connection assembly 1 is in a collapsed state. In other words, the groove portion 121 of this embodiment is recessed on the side of the second rod 12 facing the extending portion 112. The groove can completely penetrate the second rod 12 along the first direction X, or there can be a gap between the bottom surface and the surface of the second rod 12 away from the extending portion 112 in the first direction X. The cooperation between the protruding portion 1121 and the guiding groove 1313 plays a guiding role for the connection block 131.

[0067] In addition, the protrusion 1121 can also limit the extreme position of the connecting block 131 in the direction opposite to the third direction Y. When the connecting block 131 moves towards the second rod 12, the protrusion 1121 abuts against the side of the guiding groove 1313 facing the first rod 11, thereby preventing the connecting block 131 from further moving towards the second rod 12. In the embodiment where the connecting portion 13 includes the elastic member 132, this setting method can prevent the connecting block 131 from excessively compressing the elastic member 132 and causing damage to the elastic member 132.

[0068] Optionally, the surface of the extension portion 112 away from the second rod 12 is flush with the rod body 111. The surface of the second rod 12 away from the extension portion 112 is flush with the rod body 111. In this embodiment, the dimension of the first rod 11 in the first direction X is greater than the dimension of the second rod 12 in the second direction Z. At the same time, when the tabletop connection assembly 1 is connected to the tabletop body 2, the dimensions of the position of the rod body 111 of the first rod 11 and the position of the extension portion 112 in the first direction X are as uniform as possible. Since the first rod 11 is disposed at one end away from the tabletop body 2, when an object is placed on the tabletop body 2, the moment applied by the gravity of the object to the first rod 11 is greater. Therefore, this setting method is beneficial to improving the structural strength of the first rod 11 and avoiding the weakening of the structural strength caused by the thickness difference at the excessive position of the rod body 111 and the extension portion 112.

[0069] Each of the above embodiments can be applied to the single-rotating shaft type of tabletop assembly 100. In fact, each of the above embodiments can also be applied to the link type of tabletop assembly 100 as shown in Figure 6 The tabletop assembly 100 includes a tabletop link 3. One end of the tabletop link 3 away from the first rod 11 is pivotally connected to the tabletop body 2, so that the tabletop body 2 can rotate around an axis parallel to the first direction X. One end of the tabletop link 3 is pivotally connected to the tabletop assembly 100, and the other end is pivotally connected to the seat 200. Among them, the second rod 12 is also pivotally connected to the tabletop link 3, thereby forming a multi-link structure. When the tabletop assembly 100 needs to be switched from the use state to the retracted state, the tabletop body 2 first rotates around the axis, and then drives the tabletop link 3 and the tabletop connection assembly 1 to pivot and switch to the retracted state.

[0070] When the force applied to the end of the tabletop body 2 away from the seat 200 in the direction opposite to the second direction Z is greater than the threshold value, the tabletop connection assembly 1 is switched to the collapsed state. At this time, the second rod 12 drives the tabletop body 2 and the tabletop link 3 to pivot. In this way, the tabletop assembly 100 can also form an inclined state as shown by the orange line, moving away from the passenger's body in the two directions of the third direction Y and the direction opposite to the second direction Z. Figure 5

[0071] ​It can be seen that the tabletop connection component 1 provided by the present application can be applied to common different types of tabletop components 100, with high versatility, which is beneficial to reducing the cost of batch replacement of the tabletop components 100.

[0072] It should be noted that when the tabletop connection component 1 is in the working state, the parallelism of the first rod 11 and the second rod 12 should be understood as that the extension directions of the first rod 11 and the second rod 12 are parallel at least at the pivot connection position, rather than only the overall extension directions being parallel.

[0073] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of the present application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application.

Claims

1. A tabletop connection component, characterized in that Comprising: A first rod (11), including a rod body (111) and an extension portion (112) provided at an end of the rod body (111); the size of the extension portion (112) in a first direction (X) is smaller than the size of the rod body (111) in the first direction (X); the first rod (11) further includes a limiting portion (113) provided at an end of the rod body (111) facing the extension portion (112); A second rod (12), pivotally connected to the extension portion (112); the second rod includes a distal end (124), a proximal end (125), and a groove portion (121); the distal end (124) is away from the rod body (111); the proximal end (125) faces the rod body (111); the groove portion (121) is recessed from the proximal end (125); the pivot axis of the first rod (11) and the second rod (12) extends along the first direction (X); and A connecting portion (13), including a connecting block (131) provided in the groove portion (121); Wherein, when the force received by the distal end (124) is less than or equal to a threshold value, the limiting portion (113) cooperates with the connecting block (131) to limit the relative rotation of the first rod (11) and the second rod (12); When the force received by the distal end (124) is greater than the threshold value, the limiting portion (113) pushes the connecting block (131) to move away from the first rod (11), so that the proximal end (125) can move in a direction opposite to the direction of the force and enable the first rod (11) and the second rod (12) to rotate relatively.

2. The tabletop connection assembly according to claim 1, characterized in that, The limiting portion (113) is a recessed portion (1131) extending from an end face of the rod body (111) away from the second rod (12); the recessed portion (1131) includes a guiding inclined surface (1132) provided on one side in a second direction (Z), such that the recessed portion (1131) narrows in a direction away from the second rod (12); the connecting block (131) includes a mating portion (1311) protruding from the groove portion (121); the mating portion (1311) extends into the recessed portion (1131); the mating portion (1311) abuts against the guiding inclined surface (1132); the second direction (Z) is different from the first direction (X).

3. The tabletop connection assembly according to claim 2, wherein, The mating portion (1311) is provided with a mating inclined surface (1312); when in a working state, the mating inclined surface (1312) fits with the guiding inclined surface (1132).

4. The tabletop connection assembly according to claim 2, characterized in that, The recessed portion (1131) includes a force-receiving plane (1133) disposed opposite to the guiding inclined surface (1132) in the second direction (Z); the force-receiving plane (1133) is parallel to the extending direction of the first rod (11); the mating portion (1311) abuts against the force-receiving plane (1133).

5. The tabletop connection component according to claim 2, characterized in that The connecting portion (13) further includes an elastic member (132); the elastic member (132) is disposed in the groove portion (121), and one end thereof abuts against the groove portion (121), and the other end abuts against the connecting block (131); the elastic member (132) is configured to apply a force to the connecting block (131) from the second rod (12) towards the first rod (11).

6. The tabletop connection assembly according to claim 2, characterized in that The included angle between the guiding inclined surface (1132) and the plane formed by the extending direction of the first rod (11) and the first direction (X) is greater than or equal to 20 degrees and less than or equal to 60 degrees.

7. The tabletop connection assembly according to any one of claims 1-6, characterized in that, The second rod (12) includes a cover plate (122); the cover plate (122) is disposed on a side of the second rod (12) away from the extension portion (112) and covers the groove portion (121); and / or The surface of the extension portion (112) away from the second rod (12) is flush with the rod body (111); the surface of the second rod (12) away from the extension portion (112) is flush with the rod body (111); and / or The connecting block (131) includes a guiding groove (1313) whose extending direction is parallel to the second rod (12); a protruding portion (1121) is disposed on a side of the extension portion (112) facing the second rod (12); the protruding portion (1121) is disposed in the guiding groove (1313) and relatively moves with the guiding groove (1313) when the tabletop connection assembly (1) is in a collapsed state.

8. A tabletop component, characterized in that, It includes a tabletop body (2) and the tabletop connection assembly (1) according to any one of claims 1-7; the distal end is connected to the tabletop body (2); one end of the first rod (11) away from the second rod (12) is configured to be pivotally connected to a component to be connected.

9. A seat, characterized in that, It includes a seat side (210) and a back side (220) which are oppositely arranged, and the tabletop assembly (100) according to claim 8; one end of the first rod (11) away from the second rod (12) is pivotally connected to the back side (220); The tabletop assembly (100) includes a stowed state and a use state: when in the stowed state, the tabletop body (2) is disposed close to the back side (220); when in the use state, the tabletop body (2) is away from the back side (220); When the tabletop assembly (100) is in the use state and the force received by the distal end is greater than a threshold value, the proximal end moves in a direction away from the ground.

10. A vehicle, characterized in that, It includes a seat according to claim 9.

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