Small electric table board for rear-row seats and seat armrests

Abstract

The invention provides a rear-row seat electric small table board and a seat armrest, and relates to the technical field of automobile small table board equipment, the rear-row seat electric small table board comprises a small table board assembly, a seat armrest base, an electric translation assembly and a multi-connecting-rod lifting assembly; the multi-connecting-rod lifting assembly is installed on the electric translation assembly, and the small table board assembly is installed on the multi-connecting-rod lifting assembly. The multi-connecting-rod lifting assembly comprises a follow-up base, a handrail cover plate, a driving connecting rod and a driven connecting rod, the follow-up base is fixedly installed on the electric translation assembly, and an avoiding groove is formed in the handrail cover plate; one ends of the driving connecting rods and the driven connecting rods are pivoted to the follow-up base, the other ends of the driving connecting rods and the driven connecting rods are pivoted to the small table plate assembly, a synchronous rod is arranged between the two driving connecting rods, and a torsional spring is arranged between the synchronous rod and the electric translation assembly. And the seat armrest comprises a rear-row seat electric small table plate. The technical effect that the rear-row small table board is convenient to use is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile small table equipment, and in particular to an electric small table for rear seats and a seat armrest. Background Art

[0002] In recent years, with the continuous development of automobile technology and the improvement of living standards, people's requirements for automobiles have gradually increased. For passengers, seats are required to have additional storage and desk functions for light office work. Now vehicles have added small tables on the back of the front seats to meet these functional requirements.

[0003] However, the table is placed on the back of the front seat, which means that the spatial position of the table is greatly affected by the front seat, and there is a third-party constraint on human-computer interaction. In addition, the table is too far away from the rear passengers, and the back needs to be bent forward when using it, which affects the comfort of use. Summary of the invention

[0004] The purpose of the present invention is to provide an electric small table for rear seats and a seat armrest to alleviate the technical problem of the inconvenience of using the small table for rear seats in the prior art.

[0005] In a first aspect, an embodiment of the present invention provides a rear seat electric small table, including a small table assembly, a seat armrest base, an electric translation assembly, and a multi-link lifting assembly;

[0006] The electric translation assembly is mounted on the seat armrest base, the multi-link lifting assembly is mounted on the electric translation assembly, and the small table assembly is mounted on the multi-link lifting assembly;

[0007] The multi-link lifting assembly comprises a follower base, an armrest cover, an active link and a driven link, the follower base is fixedly mounted on the electric translation assembly, the armrest cover is arranged on the follower base, and an avoidance groove is provided on the armrest cover;

[0008] One end of the active connecting rod and the driven connecting rod is pivotally connected to the follower base, and the other end is pivotally connected to the small table assembly. A synchronization rod is arranged between the two active connecting rods, and a torsion spring is arranged between the synchronization rod and the electric translation assembly, so that the active connecting rod has a tendency to swing;

[0009] A stop plate is arranged in the seat armrest base, and the stop plate is located below the follower base. One end of the active connecting rod away from the small table assembly has a limit stop rod adapted to the stop plate.

[0010] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the multi-link lifting assembly further includes an auxiliary pop-up rod;

[0011] The follower base is provided with a receiving groove, and the inner walls on both sides of the receiving groove are provided with limited slideways. Both sides of the auxiliary pop-up rod are provided with outer slides, and the outer slides are slidably arranged in the limited slideways to limit the sliding range of the auxiliary pop-up rod;

[0012] The auxiliary pop-up rod is arranged below the active connecting rod and the driven connecting rod.

[0013] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a return spring is arranged between the auxiliary pop-up rod and the accommodating groove.

[0014] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the small table top assembly includes a table top and a rotating member;

[0015] The rotating member is fixedly mounted on the bottom of the desktop panel;

[0016] Both the driving link and the driven link are connected to the rotating member.

[0017] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a linkage bracket is fixedly installed between the two driven connecting rods, a linkage rod is pivotally connected to the linkage bracket, and a linkage slider is pivotally connected to one end of the linkage rod away from the linkage bracket;

[0018] A rotating transition plate is provided between the desktop panel and the rotating member, the rotating transition plate is rotatably connected to the rotating member, and a linkage sliding groove adapted to the linkage sliding block is provided at the bottom of the rotating transition plate;

[0019] A rotation-stop block is eccentrically arranged at the bottom of the rotating member, and a rotation-stop groove adapted to the rotation-stop block is provided on the linkage sliding block.

[0020] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a rotation-stopping seat is provided on the above-mentioned follower base, and a rotation-stopping groove adapted to the rotation-stopping seat is provided on the limiting stop rod.

[0021] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the electric translation assembly includes a motor, a lead screw and a lead screw nut;

[0022] The motor is fixed in the seat armrest base, the screw rod is in driving connection with the motor, the screw rod nut is installed on the follower base, and the screw rod nut is in driving connection with the screw rod.

[0023] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein the above-mentioned electric translation assembly also includes a translation guide rod, and a translation slide seat adapted to the translation guide rod is provided on the follower base.

[0024] In combination with the first aspect, an embodiment of the present invention provides a possible implementation of the first aspect, wherein a guide slider is provided at the bottom of the armrest cover, and a guide groove adapted to the guide slider is provided on the seat armrest base.

[0025] In a second aspect, an embodiment of the present invention provides a seat armrest, including the electric small table for the rear seat.

[0026] Beneficial effects:

[0027] The present invention provides an electric small table for rear seats, comprising a small table assembly, a seat armrest base, an electric translation assembly and a multi-link lifting assembly; the electric translation assembly is mounted on the seat armrest base, the multi-link lifting assembly is mounted on the electric translation assembly, and the small table assembly is mounted on the multi-link lifting assembly; the multi-link lifting assembly comprises a follower base, an armrest cover, an active link and a driven link, the follower base is fixedly mounted on the electric translation assembly, the armrest cover is arranged on the follower base, and an avoidance groove is provided on the armrest cover; one end of the active link and the driven link are pivotally connected to the follower base, and the other end is pivotally connected to the small table assembly, a synchronization rod is arranged between the two active links, and a torsion spring is arranged between the synchronization rod and the electric translation assembly, so that the active link has a tendency to swing; a rotation-stopping limit plate is arranged in the seat armrest base, the rotation-stopping limit plate is located below the follower base, and one end of the active link away from the small table assembly is provided with a limit stop rod adapted to the rotation-stopping limit plate.

[0028] Specifically, when the user is in use, the user triggers the electric translation assembly through the control key, and the electric translation assembly starts to drive the follower base to translate, thereby causing the armrest cover to move outward. At the same time, the active link and the driven link of the multi-link lifting assembly both move outward with the follower base, and during the movement, the limit stop rod on the active link can be away from the anti-rotation limit plate, so that the active link rotates and swings under the power of the torsion spring, thereby lifting the small table board assembly set on both the active link and the driven link and moving it outward, so that the user can use the small table board assembly.

[0029] The embodiment of the present invention provides a seat armrest, including an electric small table for a rear seat. The seat armrest has the above advantages compared with the prior art, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of a rear seat electric tray table not opened provided by an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of an embodiment of the present invention showing a rear seat electric tray table opened;

[0033] Figure 3 A schematic diagram of a rear seat electric tray table rotating to the driver's side provided by an embodiment of the present invention;

[0034] Figure 4 A schematic diagram of the rear seat electric tray table rotating to the passenger side provided by an embodiment of the present invention;

[0035] Figure 5 A partial schematic diagram of a top view of an electric small table for rear seats provided in an embodiment of the present invention;

[0036] Figure 6 for Figure 5 Sectional view of A-A;

[0037] Figure 7 for Figure 5 Sectional view of B-B;

[0038] Figure 8 A schematic diagram of the interior of a rear seat electric tray table provided in an embodiment of the present invention;

[0039] Fig. 9 A schematic diagram of the internal structure of the rear seat electric tray table provided in an embodiment of the present invention;

[0040] Fig.10 A schematic diagram of the internal structure of an electric small table for rear seats provided in an embodiment of the present invention;

[0041] Fig.11 A schematic diagram of the structure of an electric translation assembly and a multi-link lifting assembly in an electric small table for rear seats provided in an embodiment of the present invention;

[0042] Fig.12 A schematic diagram of the connection between a multi-link lifting assembly and a rotating transition plate in an electric small table for a rear seat provided in an embodiment of the present invention;

[0043] Fig.13A schematic diagram of a follow-up base in an electric small table for rear seats provided by an embodiment of the present invention;

[0044] Fig.14 A schematic diagram of an armrest cover in an electric small table for rear seats provided in an embodiment of the present invention.

[0045] icon:

[0046] 100 - small table board assembly; 110 - table top board; 120 - rotating member; 121 - anti-rotation block; 130 - rotating transition plate; 131 - linkage slide;

[0047] 200 - seat armrest base; 210 - anti-rotation limit plate; 220 - guide slide;

[0048] 300 - electric translation assembly; 310 - motor; 320 - lead screw; 330 - lead screw nut; 340 - translation guide rod;

[0049] 400 - multi-link lifting assembly; 410 - follow-up base; 411 - receiving groove; 412 - limiting slide; 413 - translation slide; 414 - anti-rotation block seat; 420 - armrest cover; 421 - avoidance groove; 422 - guide slider; 430 - active connecting rod; 431 - synchronization rod; 432 - torsion spring; 433 - limiting block rod; 434 - anti-rotation slot; 440 - driven connecting rod; 450 - auxiliary pop-up rod; 451 - outer slider; 452 - return spring; 461 - linkage bracket; 462 - linkage rod; 463 - linkage slider; 464 - anti-rotation groove. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0055] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 and Fig.14As shown, the present embodiment provides a rear seat electric small table, including a small table assembly 100, a seat armrest base 200, an electric translation assembly 300 and a multi-link lifting assembly 400; the electric translation assembly 300 is mounted on the seat armrest base 200, the multi-link lifting assembly 400 is mounted on the electric translation assembly 300, and the small table assembly 100 is mounted on the multi-link lifting assembly 400; the multi-link lifting assembly 400 includes a follower base 410, an armrest cover 420, an active link 430 and a driven link 440, the follower base 410 is fixedly mounted on the electric translation assembly 300, and the armrest cover 420 is arranged on the follower base 410. 0, an avoidance groove 421 is provided on the armrest cover 420; one end of the active connecting rod 430 and the driven connecting rod 440 are pivotally connected to the follower base 410, and the other end is pivotally connected to the small table assembly 100, a synchronization rod 431 is arranged between the two active connecting rods 430, and a torsion spring 432 is arranged between the synchronization rod 431 and the electric translation assembly 300, so that the active connecting rod 430 has a tendency to swing; a stop plate 210 is arranged in the seat armrest base 200, and the stop plate 210 is located below the follower base 410, and the end of the active connecting rod 430 away from the small table assembly 100 has a limit stop rod 433 adapted to the stop plate 210.

[0056] Specifically, when in use, the user triggers the electric translation assembly 300 through the control key, and the electric translation assembly 300 starts to drive the follower base 410 to translate, thereby causing the armrest cover 420 to move outward, and at the same time, the active link 430 and the driven link 440 of the multi-link lifting assembly 400 both move outward with the follower base 410, and during the movement, the limit stop rod 433 on the active link 430 can be away from the stop limit plate 210, so that the active link 430 rotates and swings under the power of the torsion spring 432, thereby lifting the small table assembly 100 set on both the active link 430 and the driven link 440 and moving it outward, so that the user can use the small table assembly 100.

[0057] The user may control the operation of the electric translation assembly 300 by pressing keys or by touching buttons, etc. The technicians in this field may decide the triggering method of the electric translation assembly 300 by themselves, as long as the electric translation assembly 300 can be controlled.

[0058] The armrest cover plate 420 is provided with an avoidance groove 421 , so that both the active connecting rod 430 and the driven connecting rod 440 can extend from the avoidance groove 421 to be connected with the rotating member 120 at the bottom of the desktop plate 110 .

[0059] See also Figure 1 - Fig.14As shown, in an optional scheme of this embodiment, the multi-link lifting assembly 400 also includes an auxiliary pop-up rod 450; a receiving groove 411 is provided on the follower base 410, and limiting slides 412 are provided on the inner walls of both sides of the receiving groove 411, and outer sliding blocks 451 are provided on both sides of the auxiliary pop-up rod 450, and the outer sliding blocks 451 are slidably set in the limiting slides 412 to limit the sliding range of the auxiliary pop-up rod 450; auxiliary pop-up rods 450 are provided below the active connecting rod 430 and the driven connecting rod 440.

[0060] The auxiliary pop-up rod 450 is provided with outer sliders 451 on both sides, and the outer sliders 451 are slidably arranged in the limiting slideway 412, and the entrance of the limiting slideway 412 is at the bottom, so that the auxiliary pop-up rod 450 cannot be separated from the receiving groove 411 of the follower base 410 from the upper part. When the active link 430 and the driven link 440 swing upward, the auxiliary pop-up rod 450 is lifted upward by the return spring 452, so that the auxiliary pop-up rod 450 can not only assist the active link 430 and the driven link 440 in lifting, but also cover the receiving groove 411.

[0061] A return spring 452 is disposed between the auxiliary pop-up rod 450 and the receiving groove 411 .

[0062] See also Figure 1 - Fig.14 As shown, in an optional solution of this embodiment, the small table top assembly 100 includes a table top 110 and a rotating member 120; the rotating member 120 is fixedly installed at the bottom of the table top 110; and both the active connecting rod 430 and the driven connecting rod 440 are connected to the rotating member 120.

[0063] The rotating member 120 has a damping function, thereby making the desktop panel 110 stable.

[0064] See also Figure 1 - Fig.14 As shown, in the optional scheme of this embodiment, a linkage bracket 461 is fixedly installed between the two driven connecting rods 440, a linkage rod 462 is pivotally connected to the linkage bracket 461, and a linkage slider 463 is pivotally connected to the end of the linkage rod 462 away from the linkage bracket 461; a rotating transition plate 130 is arranged between the desktop panel 110 and the rotating member 120, the rotating transition plate 130 is rotatably connected to the rotating member 120, and a linkage slide groove 131 adapted to the linkage slider 463 is arranged at the bottom of the rotating transition plate 130; a stop block 121 is eccentrically arranged at the bottom of the rotating member 120, and a stop groove 464 adapted to the stop block 121 is opened on the linkage slider 463.

[0065] The outer fixed plate of the rotating member 120 is fixedly mounted on the rotating transition plate 130, and the bottom of the rotating transition plate 130 is pivotally connected to the active link 430 and the driven link 440 of the multi-link lifting assembly 400, so that the active link 430 and the driven link 440 support the rotating transition plate 130. The middle rotating part of the rotating member 120 is connected to the desktop panel 110, so that the desktop panel 110 can rotate relative to the rotating transition plate 130.

[0066] See also Figure 1 - Fig.14 As shown, in an optional solution of this embodiment, a rotation-stopping seat 414 is provided on the follower base 410 , and a rotation-stopping groove 434 adapted to the rotation-stopping seat 414 is provided on the limiting stop rod 433 .

[0067] See also Figure 1 - Fig.14 As shown, in an optional scheme of this embodiment, the electric translation assembly 300 includes a motor 310, a screw 320 and a screw nut 330; the motor 310 is fixed in the seat armrest base 200, the screw 320 is transmission-connected to the motor 310, the screw nut 330 is installed on the follower base 410, and the screw nut 330 is transmission-connected to the screw 320.

[0068] The electric translation assembly 300 further includes a translation guide rod 340 , and a translation slide 413 adapted to the translation guide rod 340 is disposed on the follower base 410 .

[0069] The bottom of the armrest cover 420 is provided with a guide slider 422, and the armrest base 200 is provided with a guide slot 220 adapted to the guide slider 422. By providing the guide slider 422 and the guide slot 220, the armrest cover 420 can move synchronously and smoothly with the follower base 410, so that the armrest cover 420 covers the armrest base 200.

[0070] See also Figure 1 - Fig.14As shown, specifically, when the user is in use, the user can trigger the motor 310 through the control key, the motor 310 works to drive the screw rod 320 to rotate, the screw rod 320 drives the screw nut 330 to move, the screw nut 330 drives the follower base 410 to translate along the translation guide rod 340, and during the translation process, the limit stop rod 433 on the active connecting rod 430 gradually moves away from the anti-rotation limit plate 210 in the seat armrest base 200, so that the active connecting rod 430 can gradually rotate under the action of the torsion spring 432, and the active connecting rod 430 rotates to enable the rotating member 120 to be synchronously lifted, and the rotating member 120 drives the small table board assembly 100 to be lifted, and at the same time, the auxiliary pop-up rod 450 located in the accommodating groove 411 of the follower base 410 is moved upward by the return spring 452, so that The auxiliary pop-up rod 450 drives the active connecting rod 430 and the driven connecting rod 440 to lift upward, thereby further ensuring that the small table panel assembly 100 can be automatically lifted; when the limit stop rod 433 is completely free from the restriction of the anti-rotation limit plate 210, the active connecting rod 430 and the driven connecting rod 440 can be in a vertical state. At this time, the anti-rotation slot 434 on the limit stop rod 433 abuts against the anti-rotation stop seat 414 on the follower base 410, so that the active connecting rod 430 will not continue to rotate under the action of the torsion spring 432. At this time, the desktop panel 110 is completely extended outward, and the desktop panel 110 is in the highest lifting position. At this time, the length direction of the desktop panel 110 points to the front seat. At this time, the user can rotate the desktop panel 110 to the left and right sides for user use.

[0071] It should be pointed out that when the multi-link lifting assembly 400 drives the desktop panel 110 to lift and the driven link 440 swings upward, the driven link 440 can drive the linkage bracket 461 fixed on the driven link 440 to rotate. The rotation of the linkage bracket 461 can pull the linkage rod 462 to move, thereby driving the linkage slider 463 to slide in the linkage slide groove 131, so that the linkage slider 463 is disengaged from the stop block 121 at the bottom of the rotating member 120, thereby releasing the restriction on the rotating member 120, allowing the rotating member 120 to rotate, thereby allowing the user to rotate the desktop panel 110.

[0072] It should be noted that when the unfolded small table assembly 100 is folded, the user triggers the control button set on the seat armrest base 200, so that the electric translation assembly 300 works to drive the small table assembly 100 to retract. During the retraction process, the user can stop rotating the horizontal small table assembly 100. When the multi-link lifting assembly 400 and the electric translation assembly 300 are recovered and swung, the driven connecting rod 440 drives the linkage bracket 461 to rotate, the linkage bracket 461 drives the linkage rod 462 to move, and the linkage rod 462 drives the linkage slider 463 to slide in the linkage slide groove 131 of the rotating transition plate 130. During the sliding process of the linkage slider 463, the linkage slider 463 can push the stop block 121 eccentrically set at the bottom of the rotating member 120 to move, and the action of the linkage slider 463 on the stop block 121 can cause the rotating member 120 to shift gears, thereby resetting the horizontal desktop panel 110, and finally the stop block 121 will move to the stop groove 464 on the linkage slider 463.

[0073] It should be pointed out that the small table on the seat armrest with a small table provided in the present embodiment is arranged on the seat armrest of the car seat, and the seat armrest can be rotated and opened relative to the rear seat, and can be retracted into the seat back when not in use, so that the rear seat can accommodate three passengers. When the passengers need to use the small table, the seat armrest with a small table provided in the present embodiment can be unfolded, and when the rear table is opened, it is always in a horizontal state and is not affected by the change of the backrest angle, and does not affect the use.

[0074] This embodiment provides a seat armrest, including an electric small table for rear seats.

[0075] Specifically, the advantages of the electric small table for rear seats provided by this embodiment are compared with the prior art, which will not be described in detail here.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric small table for rear seats, characterized in that: include: A small table assembly (100), a seat armrest base (200), an electric translation assembly (300) and a multi-link lifting assembly (400); The electric translation assembly (300) is mounted on the seat armrest base (200), the multi-link lifting assembly (400) is mounted on the electric translation assembly (300), and the small table assembly (100) is mounted on the multi-link lifting assembly (400); The multi-link lifting assembly (400) comprises a follower base (410), an armrest cover (420), an active link (430) and a driven link (440); the follower base (410) is fixedly mounted on the electric translation assembly (300); the armrest cover (420) is arranged on the follower base (410); and an avoidance groove (421) is provided on the armrest cover (420); One end of the active connecting rod (430) and the driven connecting rod (440) are pivotally connected to the follower base (410), and the other end is pivotally connected to the small table assembly (100); a synchronization rod (431) is arranged between the two active connecting rods (430); a torsion spring (432) is arranged between the synchronization rod (431) and the electric translation assembly (300), so that the active connecting rod (430) has a tendency to swing; A stop plate (210) is provided in the seat armrest base (200), and the stop plate (210) is located below the follower base (410). The end of the active connecting rod (430) away from the small table assembly (100) has a limit stop rod (433) adapted to the stop plate (210).

2. The rear seat electric table according to claim 1, characterized in that: The multi-link lifting assembly (400) further includes an auxiliary pop-up rod (450); The follower base (410) is provided with a receiving groove (411), and the inner walls on both sides of the receiving groove (411) are provided with limited slideways (412), and the two sides of the auxiliary pop-up rod (450) are provided with outer sliding blocks (451), and the outer sliding blocks (451) are slidably arranged in the limited slideways (412) to limit the sliding range of the auxiliary pop-up rod (450); The auxiliary pop-up rod (450) is disposed below both the active connecting rod (430) and the driven connecting rod (440).

3. The rear seat electric table according to claim 2, characterized in that: A return spring (452) is provided between the auxiliary pop-up rod (450) and the accommodating groove (411).

4. The rear seat electric table according to claim 2, characterized in that: The small table top assembly (100) comprises a table top (110) and a rotating member (120); The rotating member (120) is fixedly mounted on the bottom of the desktop panel (110); Both the active connecting rod (430) and the driven connecting rod (440) are connected to the rotating member (120).

5. The rear seat electric table according to claim 4, characterized in that: A linkage bracket (461) is fixedly installed between the two driven connecting rods (440), a linkage rod (462) is pivotally connected to the linkage bracket (461), and a linkage slider (463) is pivotally connected to one end of the linkage rod (462) away from the linkage bracket (461); A rotating transition plate (130) is provided between the desktop panel (110) and the rotating member (120), the rotating transition plate (130) is rotatably connected to the rotating member (120), and a linkage sliding groove (131) adapted to the linkage sliding block (463) is provided at the bottom of the rotating transition plate (130); A rotation-stop block (121) is eccentrically arranged at the bottom of the rotating member (120), and a rotation-stop groove (464) adapted to the rotation-stop block (121) is provided on the linkage sliding block (463).

6. The rear seat electric table according to claim 1, characterized in that: The follower base (410) is provided with a rotation-stopping seat (414), and the position-limiting blocking rod (433) is provided with a rotation-stopping slot (434) adapted to the rotation-stopping seat (414).

7. The rear seat electric tray table according to claim 1, characterized in that: The electric translation assembly (300) comprises a motor (310), a lead screw (320) and a lead screw nut (330); The motor (310) is fixed in the chair armrest base (200), the screw rod (320) is drivingly connected to the motor (310), the screw rod nut (330) is installed on the follower base (410), and the screw rod nut (330) is drivingly connected to the screw rod (320).

8. The rear seat electric tray table according to claim 7, characterized in that: The electric translation assembly (300) further comprises a translation guide rod (340), and a translation slide seat (413) adapted to the translation guide rod (340) is arranged on the follower base (410).

9. The rear seat electric tray table according to any one of claims 1 to 8, characterized in that: A guide slider (422) is provided at the bottom of the armrest cover plate (420), and a guide slot (220) adapted to the guide slider (422) is provided on the seat armrest base (200).

10. A chair armrest, characterized in that: Including the electric small table for rear seats as described in any one of claims 1-9.

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