Front-row electric small table board for automobile
By employing a single rotating device to drive the linkage structure in the electric front seat tray table of a car, and utilizing a torsion spring and worm gear transmission system, the first and second linkages are brought into contact, solving the gap problem during the tray table's swing and improving the tray table's flatness and usability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-03-24
AI Technical Summary
Existing electric front seats in cars are prone to developing a predetermined gap during the swinging process, affecting the levelness of the seats. The main reason is that the fit between the first and second linkages is insufficient.
A single rotating device drives two sets of connecting rods. A torsion spring provides elasticity to make the first and second connecting rods fit together when the table is unfolded. A worm gear, gear and coupling structure is used to achieve high torque transmission. Non-circular positioning holes and positioning shafts are combined to ensure accurate positioning of the connecting rods. Torsion springs are used to eliminate gaps.
The flatness of the tabletop has been improved, ensuring its smoothness when folded and unfolded, reducing pre-set gaps, and enhancing the user experience.
Smart Images

Figure CN224028864U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of car small table board, especially a front row electric small table board for car. BACKGROUND
[0002] Small table board is a component installed behind the front row seat of a car, which can be used to place food, laptop, etc.
[0003] However, the existing small table board generally adopts a manual switch structure,
[0004] For example, Chinese patent 202221433917.7 adopts the cooperation of a first connecting rod, a second connecting rod, and a damper to realize the overturning and folding of the table board.
[0005] Of course, there are also electric drive structures in the prior art, but in actual table board swinging, a predetermined gap often occurs, which is mainly due to the insufficient fit of the first connecting rod and the second connecting rod, thereby affecting the levelness of the table board. INVENTION CONTENTS
[0006] The main purpose of the utility model is to provide a front row electric small table board for car, aiming to improve the structure of the existing electric table board, realize the electric drive of the table board, and at the same time realize the fit of the first connecting rod and the second connecting rod.
[0007] To achieve the above purpose, the utility model provides a front row electric small table board for car, comprising:
[0008] A table board is provided with an installation space inside;
[0009] A rotating device is provided at the rear position of the table board, and the driving end of the rotating device is connected with two rotating drive shafts on both sides,
[0010] The rotating device is used to drive the two rotating drive shafts to rotate, and the rotating drive shaft is provided with a torsional spring;
[0011] A groove is provided with a first connecting rod and a second connecting rod,
[0012] The lower end of the first connecting rod is pivotally installed at the front of the groove, and the rear end is pivotally installed at the seat;
[0013] The lower end of the second connecting rod is pivotally installed at the rear of the groove, and the rear end is pivotally installed at the seat, and the other end of the rotating drive shaft is fixedly connected with the pivot end of the second connecting rod;
[0014] The torsional spring is used to exert a pressure on the front part of the second connecting rod when the table board is unfolded, which is consistent with the front part of the first connecting rod.
[0015] In the actual design, a single rotating device is used to drive two groups of first connecting rods and second connecting rods, when the table plate swings outward (the groove is upward), the second connecting rod is driven by the rotating drive shaft, the first connecting rod follows (at this time the torsional spring releases the accumulated elastic force), until the front part of the first connecting rod and the front part of the second connecting rod are attached, at this time the torsional spring releases the elastic force, and then eliminates the gap between the first connecting rod and the second connecting rod, and then improves the flatness of the table plate (for reference to Chinese patent 202221433917.7 after folding). BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is a perspective view of the utility model;
[0017] Fig. 2 It is a side view of the utility model;
[0018] Fig. 3 It is a perspective view of the utility model;
[0019] Fig. 4 It is a partial enlarged view of the utility model.
[0020] In the drawings,
[0021] 1 is a table plate, 10 is a groove,
[0022] 2 is a rotating device, 20 is a rotating drive shaft, 21 is a worm, 22 is a first gear, 23 is a second gear, 24 is a driving gear, 25 is a shaft coupling,
[0023] 31 is a positioning hole, 32 is a positioning shaft,
[0024] 41 is a reinforcing rib, 42 is a bayonet,
[0025] 51 is a first connecting rod, 511 is a first vertical arm, 512 is a first curved arm, 513 is a first positioning arm,
[0026] 61 is a second connecting rod, 611 is a second vertical arm, 612 is a second curved arm, 613 is a second positioning arm,
[0027] 7 is an inclined plane,
[0028] 8 is a torsional spring. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0030] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial......), the directionality indication is only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), if the specific posture changes, then the directionality indication also changes accordingly.
[0031] In addition, if the embodiments of the utility model have the description of "first" or "second" and the like, the description of "first" or "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0032] As shown in Figs. 1 to 4 A front row electric small table board for automobile, comprising:
[0033] A table board 1, wherein an installation space is arranged inside the table board 1;
[0034] A rotating device 2 is arranged at the rear position of the table board 1, and rotating driving shafts 20 are connected to the two sides of the driving end of the rotating device 2,
[0035] The rotating device 2 is used for driving the two rotating driving shafts 20 to rotate, and torsional springs are arranged on the rotating driving shafts 20;
[0036] A groove 10 is provided with a first connecting rod 51 and a second connecting rod,
[0037] The lower end of the first connecting rod 51 is pivotally installed at the front part of the groove 10, and the rear end is pivotally installed at the seat;
[0038] The lower end of the second connecting rod is pivotally installed at the rear part of the groove 10, and the rear end is pivotally installed at the seat, and the other end of the rotating driving shaft 20 is fixedly connected with the pivot end of the second connecting rod;
[0039] The torsional spring is used for exerting pressure on the front part of the second connecting rod when the table board 1 is unfolded, and the front part of the first connecting rod 51 is adhered.
[0040] In the actual design, a single rotating device 2 is used to drive two groups of first connecting rods 51 and second connecting rods, when the table board 1 swings outward (the groove 10 is upward), the second connecting rod is driven by the rotating drive shaft 20, the first connecting rod 51 follows, until the front part of the first connecting rod 51 and the front part of the second connecting rod are attached, at this time the torsional spring releases the elastic force, and then eliminates the gap between the first connecting rod 51 and the second connecting rod, and then improves the flatness of the table board 1 (for reference to Chinese patent 202221433917.7 folded state).
[0041] Specifically, the second connecting rod is provided with a non-circular positioning hole 31, and the rotating drive shaft 20 is provided with a positioning shaft 32 matched with the positioning hole 31, thereby realizing direct driving.
[0042] In the embodiment of the utility model, one end of the torsional spring is connected with the reinforcing rib 41 of the table board 1, and the other end is connected with the outwardly extending catch pin 42 of the rotating drive shaft 20, so that the inner wall of the second connecting rod abuts against the bottom wall of the groove 10, and the first connecting rod 51 and the second connecting rod are in linkage structure, thereby realizing the attachment between them in the groove 10 part.
[0043] Specifically, the rotating device 2 includes a worm 21 arranged on the drive shaft, a first gear 22 engaged with the worm 21, a second gear 23 integrally extended from the first gear 22, and a driving gear 24 arranged on the rotating drive shaft 20, the driving gear 24 is engaged with the second gear 23, thereby realizing larger torque in smaller space, and driving the folding and unfolding of the table board 1.
[0044] In the embodiment of the utility model, the driving gear 24 is connected with the driving shaft, and the two ends of the driving shaft are connected with the rotating drive shaft 20 through the shaft coupling 25, thereby realizing the structure of one drive and two rotations.
[0045] Specifically, the length of the second connecting rod is less than the length of the first connecting rod 51, thereby realizing the linkage structure in staggered position, ensuring smaller volume after folding and unfolding.
[0046] In the embodiment of the utility model, the first connecting rod 51 includes a first vertical arm 511, a first curved arm 512 obliquely extended from the first vertical arm 511, and a first positioning arm 513 extended from the first curved arm, and the end of the first positioning arm is connected with the seat.
[0047] Specifically, the groove 10 is provided with a slope 7 matched with the first curved arm, thereby realizing the storage flattening after folding.
[0048] In the embodiment of the utility model, the second connecting rod 61 includes a second vertical arm 611, a second curved arm 612 extending obliquely from the second vertical arm and a second positioning arm 613 extending from the second curved arm, and the end of the second positioning arm is connected with the seat.
[0049] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the attached drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.
Claims
1. A front-row electric tray table for automobiles, characterized in that, The utility model provides a table board, a rotating device, a first connecting rod, a second connecting rod and a torsion spring. The rotating device is arranged at the rear of the table board and is connected with the rotating driving shaft at both ends. The rotating device drives the rotating driving shaft to rotate. The torsion spring is arranged on the rotating driving shaft. The first connecting rod is pivotally connected with the front of the recess and the rear of the seat. The second connecting rod is pivotally connected with the rear of the recess and the seat. The other end of the rotating driving shaft is fixedly connected with the pivot end of the second connecting rod. The torsion spring applies pressure to the front of the second connecting rod when the table board is unfolded.
2. The front electric table for a vehicle according to claim 1, wherein: The second connecting rod is provided with a non-circular positioning hole.
3. The front electric table for a vehicle according to claim 1, wherein: The rotating driving shaft is provided with a positioning shaft matched with the positioning hole.
4. The front electric table for a vehicle according to claim 1, wherein: One end of the torsion spring is connected with the reinforcing rib of the table board, and the other end is connected with the outwardly extending catch pin of the rotating driving shaft.
5. The front electric table for a vehicle according to claim 4, wherein: The rotating device comprises a worm arranged on the driving shaft, a first gear engaged with the worm, a second gear integrally extended from the first gear, and a driving gear arranged on the rotating driving shaft.
6. The electric table for front seat of a vehicle according to claim 1, wherein: The driving gear is connected with a driving shaft.
7. The electric table for front seat of a vehicle according to claim 1, wherein: The two ends of the driving shaft are connected with the rotating driving shaft through a shaft coupling.
8. The front electric table for a vehicle according to claim 7, wherein: The length of the second connecting rod is less than that of the first connecting rod.
9. The electric table for front seat of a vehicle according to claim 1, wherein: The first connecting rod comprises a first vertical arm, a first curved arm obliquely extended from the first vertical arm, and a first positioning arm extended from the first curved arm. The end of the first positioning arm is connected with the seat. The recess is provided with a slope matched with the first curved arm. The second connecting rod comprises a second vertical arm, a second curved arm obliquely extended from the second vertical arm, and a second positioning arm extended from the second curved arm. The end of the second positioning arm is connected with the seat.
Citation Information
Patent Citations
Small table board of automobile seat
CN217294341U