Inner drive small table plate folding mechanism based on six-connecting-rod linkage seam filling

Abstract

The invention relates to the technical field of small table plates of folding seats, in particular to an inner drive small table plate folding mechanism based on six-connecting-rod linkage seam filling, which comprises a mounting seat, upper shaft heads are arranged at the tops of the two sides of the mounting seat, and lower shaft heads are arranged at the bottoms of the two sides of the mounting seat; a motor is horizontally arranged at the bottom of the table plate framework, driving shafts penetrating through the table plate framework are arranged at the two ends of the motor respectively, hinge shafts are arranged in the middles of the two sides of the table plate framework respectively, and small swing arms are hinged to the tops of the two sides of the table plate framework respectively. The two ends of the L-shaped connecting rod are matched with the upper shaft head and the hinge shaft through shaft holes respectively; one end of the S connecting rod is vertically connected with the driving shaft, the other end of the S connecting rod is matched with the lower shaft head through a shaft hole, and the S connecting rod is shorter than the L connecting rod; one end of the seam filling connecting rod is hinged with the free end of the small swing arm, and the other end is hinged with the middle part of the L connecting rod close to the hinge shaft area. In the unfolding process of the table board framework, the storage grooves of the connecting rod mechanisms are filled and leveled up through the seam filling connecting rods, and the integrity of the small table board is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of folding seat tables, and particularly to an inner-driven table folding mechanism based on six-link linkage for gap filling. Background Art

[0002] As an auxiliary component for office work, entertainment or dining, the car seat table has a wide range of application requirements in business models, family MPVs and long-distance travel scenarios. Currently, the table with a four-link folding mechanism is widely used in the opening and closing design of seat tables due to its advantages such as stable structure and convenient operation. However, during the folding process of the traditional four-link mechanism, due to the requirement for the flipping motion space of the link, gaps need to be reserved on the table panel. These gaps not only affect the aesthetics but may also pinch the user's fingers or accumulate dust and debris, reducing the safety and durability of the product. Summary of the Invention

[0003] The present invention provides an inner-driven table folding mechanism based on six-link linkage for gap filling. Based on the coordinated movement of multiple links, the stable unfolding and folding of the table skeleton are realized through motor drive, and at the same time, the storage groove of the motion mechanism is filled by the gap-filling link to improve the integrity of the small table.

[0004] To achieve the above object, the present invention provides the following technical solution: An inner-driven table folding mechanism based on six-link linkage for gap filling, which includes: a mounting seat, the mounting seat is fixedly connected to the back of the seat through a positioning pin and a mounting hole, and upper shaft heads are provided at the tops of both sides of the mounting seat, and lower shaft heads are provided at the bottoms; a table skeleton, the table skeleton is arranged on the side of the mounting seat away from the seat, and a motor is horizontally provided at the bottom of the table skeleton, driving shafts penetrating the table skeleton are respectively provided at both ends of the motor, hinge shafts are respectively provided in the middle parts of both sides of the table skeleton, and small swing arms are respectively hinged at the tops; an L-link, both ends of the L-link are respectively matched with the upper shaft head and the hinge shaft through shaft holes; an S-link, one end of the S-link is vertically connected to the driving shaft, and the other end is matched with the lower shaft head through a shaft hole, and the length of the S-link is less than the length of the L-link; a gap-filling link, one end of the gap-filling link is hingedly matched with the free end of the small swing arm, and the other end is hinged to the middle area of the L-link close to the hinge shaft area.

[0005] Preferably, the thickness of the gap-filling link is equal to and flush with that of the L-link and the S-link; a rear extension head is provided at one end of the gap-filling link away from the small swing arm, and an avoidance groove is provided on the side of the L-link away from the mounting seat corresponding to the rear extension head.

[0006] Preferably, a front extension head is provided at one end of the gap-filling link away from the L-link, and the small swing arm is located at the side of the gap-filling link.

[0007] Preferably, a torsion spring is provided between the L-shaped connecting rod and the mounting base.

[0008] Preferably, the tops of the L-shaped connecting rod and the seam-filling connecting rod are flush in the unfolded state.

[0009] The beneficial effects of the present invention are as follows: The tabletop frame is used to install the tabletop and the outer bottom shell of the small table. The L-shaped connecting rods, S-shaped connecting rods, and seam-filling connecting rods on both sides of the tabletop frame together form a six-bar linkage mechanism. Among them, the tabletop part of the small table is provided with slots corresponding to the movement areas of the L-shaped connecting rod and the seam-filling connecting rod, so as to meet the flipping process of the small table. The six-bar linkage mechanism realizes the smooth unfolding and folding of the small table through the drive of a motor, and uses the seam-filling connecting rod to eliminate the gaps on the tabletop, so that the L-shaped connecting rod, the seam-filling connecting rod and the tabletop form an integral planar structure to meet the use requirements. During the movement of the small table, the motor drives the S-shaped connecting rod to rotate through the drive shafts at both ends. Since one end of the S-shaped connecting rod is fixed to the drive shaft and the other end is hinged to the lower shaft head of the mounting base, the rotation of the S-shaped connecting rod will pull or push the entire tabletop frame system. The S-shaped connecting rod is relatively short, and when it rotates, it will transmit a large displacement to the L-shaped connecting rod through the lever effect. The movement of the L-shaped connecting rod directly drives the tabletop frame to rotate around the hinge axis, realizing the unfolding or folding of the table. The length and hinge point position of the seam-filling connecting rod are designed to fill the slots on the tabletop with its own width, thus completing the filling of the gaps. The built-in motor saves the space of the seat, so it reduces the need for modification of the seat and is suitable for later installation. The mechanism drives the S-shaped connecting rod through the motor, amplifies the displacement through the L-shaped connecting rod and links the seam-filling connecting rod to realize the smooth unfolding / folding of the table, and at the same time uses the linked seam-filling connecting rod to fill the movement slots opened for the six-bar linkage mechanism of the small table to ensure the overall design of the small table. The seam-filling connecting rod further optimizes the seam-filling effect between the seam-filling connecting rod and the L-shaped connecting rod through the cooperation of the rear extension head and the dodging slot, reducing the size of the gaps on the tabletop of the small table. The side-mounted small swing arm is convenient to be hidden outside the slot on the tabletop to avoid interfering with the movement of the seam-filling connecting rod. The torsion spring applies a return support to the L-shaped connecting rod, thus eliminating the slack generated after the six-bar linkage mechanism is retracted and effectively suppressing the generation of noise. Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 It is a schematic diagram of the side front part of the overall structure of the present invention in the retracted state;

[0012] Figure 2Schematic diagram of the side rear part in the storage state of the overall structure of the present invention;

[0013] Figure 3 Schematic diagram of the side front part in the unfolded state of the overall structure of the present invention;

[0014] Figure 4 Schematic diagram of the side rear part in the unfolded state of the overall structure of the present invention.

[0015] In the figure: 1. Mounting seat; 2. Upper shaft head; 3. Lower shaft head; 4. Table board frame; 5. Motor; 6. Driving shaft; 7. Hinge shaft; 8. Small swing arm; 9. L-link; 10. S-link; 11. Seam-filling link; 12. Rear extension head; 13. Dodging groove; 14. Front extension head; 15. Torsion spring. Detailed implementation mode

[0016] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0017] According to Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown in the figures, an internal drive small table board folding mechanism based on six-link linkage for seam filling includes: a mounting seat 1, the mounting seat 1 is fixedly connected to the back of the seat through a positioning pin and a mounting hole, and upper shaft heads 2 are provided at the tops of both sides of the mounting seat 1, and lower shaft heads 3 are provided at the bottoms; a table board frame 4, the table board frame 4 is arranged on the side of the mounting seat 1 away from the seat, and a motor 5 is horizontally provided at the bottom of the table board frame 4, driving shafts 6 penetrating through the table board frame 4 are respectively provided at both ends of the motor 5, hinge shafts 7 are respectively provided in the middle of both sides of the table board frame 4, and small swing arms 8 are respectively hinged at the tops; an L-link 9, both ends of the L-link 9 are respectively matched with the upper shaft head 2 and the hinge shaft 7 through shaft holes; an S-link 10, one end of the S-link 10 is vertically connected to the driving shaft 6, and the other end is matched with the lower shaft head 3 through a shaft hole, and the length of the S-link 10 is less than the length of the L-link 9; a seam-filling link 11, one end of the seam-filling link 11 is hinged and matched with the free end of the small swing arm 8, and the other end is hinged with the middle area of the L-link 9 close to the hinge shaft 7. The tops of the L-link 9 and the seam-filling link 11 are flush in the unfolded state.

[0018] In the above settings, the tabletop frame 4 is used to install the tabletop and the outer bottom shell of the small table. The L-link 9, S-link 10, and seam-filling link 11 on both sides of the tabletop frame 4 together form a six-link mechanism. Among them, the tabletop part of the small table is provided with slots corresponding to the movement areas of the L-link 9 and the seam-filling link 11, so as to meet the flipping process of the small table. The six-link mechanism is driven by a motor 5 to achieve the smooth unfolding and folding of the small table, and the seam-filling link 11 is used to eliminate the gaps on the tabletop, so that the L-link 9, the seam-filling link 11, and the tabletop form an integral planar structure to meet the use requirements. During the movement of the small table, the motor 5 drives the S-link 10 to rotate through the drive shafts 6 at both ends. Since one end of the S-link 10 is fixed to the drive shaft 6 and the other end is hinged to the lower shaft head 3 of the mounting seat 1, the rotation of the S-link 10 will pull or push the entire tabletop frame 4 system. The S-link 10 is relatively short, and when it rotates, it will transfer a large displacement to the L-link 9 through the lever effect. The movement of the L-link 9 directly drives the tabletop frame 4 to rotate around the hinge shaft 7 to achieve the unfolding or folding of the table. The length and hinge point position of the seam-filling link 11 are designed to fill the slots on the tabletop with its own width, thereby completing the filling of the gaps. The built-in motor 5 saves space in the seat, so it reduces the modification requirements for the seat and is suitable for retrofitting. The mechanism drives the S-link 10 through the motor 5, amplifies the displacement through the L-link 9 and links the seam-filling link 11 to achieve the smooth unfolding / folding of the table, and at the same time uses the linked seam-filling link 11 to fill the movement slots opened for the six-link mechanism of the small table to ensure the overall design of the small table.

[0019] The seam-filling link 11 has the same thickness as the L-link 9 and the S-link 10 and is flush; a rear extension head 12 is provided at one end of the seam-filling link 11 away from the small swing arm 8, and an avoidance groove 13 is provided on the side of the L-link 9 away from the mounting seat 1 corresponding to the rear extension head 12. A front extension head 14 is provided at one end of the seam-filling link 11 away from the L-link 9, and the small swing arm 8 is located on the side of the seam-filling link 11.

[0020] Through the above settings, the seam-filling link 11 further optimizes the seam-filling effect between the seam-filling link 11 and the L-link 9 through the cooperation of the rear extension head 12 and the avoidance groove 13, and reduces the size of the gaps on the tabletop of the small table. The side-mounted small swing arm 8 is convenient to be hidden outside the slots on the tabletop to avoid interfering with the movement of the seam-filling link 11.

[0021] A torsion spring 15 is provided between the L-link 9 and the mounting seat 1. The torsion spring 15 applies a return support to the L-link 9, thereby eliminating the slack generated by the six-link mechanism after storage and effectively suppressing the generation of noise.

[0022] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An internal drive folding mechanism for a small table board based on six-link linkage for mending seams, characterized in that Comprising: A mounting base (1), the mounting base (1) is fixedly connected to the seat back through positioning pins and mounting holes, and upper shaft heads (2) are provided at the tops of both sides of the mounting base (1), and lower shaft heads (3) are provided at the bottoms; A tabletop skeleton (4), the tabletop skeleton (4) is arranged on the side of the mounting base (1) away from the seat, and a motor (5) is horizontally provided at the bottom of the tabletop skeleton (4), driving shafts (6) penetrating through the tabletop skeleton (4) are respectively provided at both ends of the motor (5), hinge shafts (7) are respectively provided in the middle parts of both sides of the tabletop skeleton (4), and small swing arms (8) are respectively hinged at the tops; An L-shaped connecting rod (9), both ends of the L-shaped connecting rod (9) are respectively matched with the upper shaft head (2) and the hinge shaft (7) through shaft holes; An S-shaped connecting rod (10), one end of the S-shaped connecting rod (10) is vertically connected to the driving shaft (6), and the other end is matched with the lower shaft head (3) through a shaft hole, and the length of the S-shaped connecting rod (10) is less than the length of the L-shaped connecting rod (9); A seam-filling connecting rod (11), one end of the seam-filling connecting rod (11) is hinged and matched with the free end of the small swing arm (8), and the other end is hinged to the middle part of the L-shaped connecting rod (9) in the area close to the hinge shaft (7).

2. The folding mechanism of the inner-driven small table board based on the six-link linkage for filling gaps according to claim 1, wherein: The seam-filling connecting rod (11) has the same thickness as the L-shaped connecting rod (9) and the S-shaped connecting rod (10), and they are flush; a rear extension head (12) is provided at one end of the seam-filling connecting rod (11) away from the small swing arm (8), and a dodging groove (13) is provided on the side of the L-shaped connecting rod (9) away from the mounting base (1) corresponding to the rear extension head (12).

3. The folding mechanism of the inner drive small table board based on six-link linkage for seam filling according to claim 2, characterized in that: A front extension head (14) is provided at one end of the seam-filling connecting rod (11) away from the L-shaped connecting rod (9), and the small swing arm (8) is located at the side of the seam-filling connecting rod (11).

4. The folding mechanism of the inner-driven small table board based on six-link linkage for seam filling according to claim 3, characterized in that: A torsion spring (15) is provided between the L-shaped connecting rod (9) and the mounting base (1).

5. A folding mechanism for an in - drive small table board based on a six - link linkage for mending seams according to claim 1, characterized in that: The tops of the L-shaped connecting rod (9) and the seam-filling connecting rod (11) are flush in the unfolded state.

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