Novel connecting rod rotating structure of small table plate of automobile seat

Abstract

The utility model discloses a novel connecting rod rotating structure of an automobile seat small table board, which relates to the technical field of automobile seat small table boards and comprises a body, an upper connecting rod and a lower connecting rod, one end of the upper connecting rod extends to the outer side of the body, and one end of the lower connecting rod extends to the outer side of the body. Second through holes are formed in the top ends of the upper connecting rod and the lower connecting rod, and Teflon flat washers are arranged between the upper connecting rod and the step rivet and between the lower connecting rod and the step rivet. According to the utility model, the base support is fixed on an external automobile seat, the unit price of general parts is relatively low, the wave-shaped elastic washer has the characteristic of elasticity in the axial direction, the axial dimension error caused in the manufacturing process of the POM sleeve and the step rivet can be reduced, and the Teflon flat washer is relatively low in cost and convenient to manufacture. Finally, after the step rivet is riveted with the base support, the Teflon flat washer is not prone to being damaged, the structure is smoother in the moving process, the hand feeling is better, and the overall service life of the product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of a small table board for an automobile seat, in particular to a novel connecting rod rotating structure of a small table board for an automobile seat. Background Art

[0002] A car seat table is a portable desktop accessory for use in the car. It is usually installed on the back or armrest of the car seat to provide passengers with a temporary work or dining platform. Depending on different needs and car models, there are many types of car seat tables to choose from on the market. These tables can be installed in various ways, including folding, retractable and hanging. For example, some tables can be folded and stored, which can save space in the car when not in use and does not affect the appearance. In addition, some high-end models are also equipped with hidden tables. This design folds the table into the seat armrest so that it does not take up any space in the car when not in use.

[0003] The existing small table connecting rod rotation structure adds a rivet bushing to allow the step rivet to rotate and lubricate in the upper connecting rod and lower connecting rod holes after the step rivet is riveted to the base bracket. On the one hand, the rivet bushing material is generally a galvanized plate with a 0.3mm thick Teflon film on the surface, and the manufacturing process is relatively complex and has many steps. On the other hand, the base bracket and the metal sleeve, rivet bushing, lower connecting rod, and step rivet are assembled before riveting because the size of the metal sleeve is larger than the step size of the step rivet. Therefore, during the riveting process, the base bracket contacts the metal sleeve, rivet bushing, and lower connecting rod assembly surfaces. Therefore, after the riveting is completed, the Teflon coating on the outer surface of the rivet bushing is squeezed and damaged, which affects the use effect and reduces the product life during subsequent use. On the other hand, the rotational internal resistance after riveting is required to be less than or equal to 0.15NM. In order to meet this requirement, each component needs to be selected and matched within the tolerance band before riveting. This method increases the difficulty of the production process, increases labor costs and instability. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a new rotating structure of the connecting rod of the small table board of a car seat, so as to solve the technical problem that the Teflon coating on the outer surface of the rivet bushing is squeezed and damaged after riveting, which affects the use effect and reduces the product life during subsequent use.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new rotating structure of a connecting rod for a small table board of a car seat, comprising a main body, an upper connecting rod with one end extending to the outside of the main body being movably connected inside the main body, a lower connecting rod with one end extending to the outside of the main body being movably connected inside the main body, a second through hole being provided at the top of each of the upper and lower connecting rods, a base bracket being movably connected to the top of each of the upper and lower connecting rods, the base bracket being movably connected to the upper and lower connecting rods via step rivets matching the second through holes, a POM sleeve being provided between the base bracket and the upper and lower connecting rods, a corrugated elastic washer being provided between the base bracket and the POM sleeve, and a Teflon flat washer being provided between the upper and lower connecting rods and the step rivets.

[0006] By adopting the above technical solution, when in use, an external user manually applies an upward pulling force to the body;

[0007] At this time, the upper connecting rod will bear the force first, that is, the movable block at the bottom end of the upper connecting rod is located inside the main body and will rotate through the rotating shaft provided inside the main body. At the same time, because a bearing is provided at the connection between the movable block and the upper connecting rod, the angle of the upper connecting rod will be adjusted actively under the active influence of the movable block and the step rivet fixed on the second through hole, so as to better change the overall angle of the main body and facilitate use.

[0008] When the user pulls the main body upward, the lower connecting rod will also change its angle due to the movement of the main body. The first through hole at the bottom end of the lower connecting rod located inside the main body will rotate on the bolt provided inside the main body, with the first through hole as the axis. After the lower connecting rod moves to a certain angle, one end of the lower connecting rod will abut against one end of the main body to fix it, thereby preventing the main body from turning over when the user is in use.

[0009] The second through holes at the bottom ends of the upper connecting rod and the lower connecting rod are penetrated by step rivets, which are matched with the third through holes of the body. A corrugated elastic washer is also provided on the outside of the step rivet. The corrugated elastic washer has axial elastic characteristics. When the step rivet is matched with the base bracket, the axial dimensional error caused by the manufacturing process of the POM sleeve and the step rivet can be reduced, thereby reducing the manufacturing difficulty and labor costs, thereby improving production efficiency and making the rotational internal resistance after riveting more stable and the quality more controllable.

[0010] The POM sleeve is an injection-molded part, and its dimensional accuracy is easier to control. The Teflon flat washer is relatively cheap, which reduces the cost of the entire machine and directly increases the profit of the product.

[0011] Specifically, after the step rivet is riveted to the base bracket, it is not easy to damage the Teflon flat washer. During the assembly process, the step surface of the step rivet of the new structure contacts the base bracket first, and it is not easy to cause damage to the Teflon flat washer after riveting, making the structure smoother and better feel during movement, thereby improving the overall service life of the product.

[0012] Furthermore, a cavity cooperating with the upper connecting rod and the lower connecting rod is provided inside the body, and the body is movably connected to the upper connecting rod and the lower connecting rod via a rotating shaft.

[0013] By adopting the above technical solution, the movable block at the bottom end of the upper connecting rod is located inside the body and rotates along the rotating shaft set inside the body to adjust the angle.

[0014] Furthermore, the main body and the upper connecting rod are movably connected via a movable block, and one end of the base bracket is provided with two groups of third through holes that cooperate with the step rivets.

[0015] By adopting the above technical solution, the second through holes at the bottom ends of the upper connecting rod and the lower connecting rod are penetrated by the step rivets, and the step rivets cooperate with the inside of the third through hole of the body to fix the body.

[0016] Furthermore, a rivet that cooperates with a step is provided inside the third through hole of the base bracket, and a second through hole is provided at the top end of the upper connecting rod and the lower connecting rod.

[0017] By adopting the above technical solution, the step rivet can fix the body by opening the second through hole on the top end of the upper connecting rod and the lower connecting rod.

[0018] Furthermore, one end of the base bracket is provided with multiple groups of screw holes that cooperate with external screws, and one end of the body is provided with two groups of grooves that cooperate with the lower connecting rod.

[0019] By adopting the above technical solution, the screw holes provided in the base bracket allow the outside to fix the body with screws, thereby preventing the body from shaking when in use.

[0020] To sum up, the utility model mainly has the following beneficial effects: the utility model is fixed to an external car seat through a base bracket, and the user pulls the main body through two sets of upper connecting rods and lower connecting rods to perform four-bar linkage activities to change the position. When the position is changed, the second through holes fixed by the step rivets and the first through holes fixed by external screws provided at both ends of the upper connecting rod are rotated, and the lower connecting rod is moved through the movable block and the second through hole fixed by the step rivet. The corrugated elastic washer is a standard part, and the unit price of general parts can be relatively low. The corrugated elastic washer has elastic characteristics in the axial direction, which can reduce the axial dimensional error caused by the manufacturing process of the POM sleeve and the step rivet, and the Teflon flat washer is relatively cheap. Finally, after the step rivet is riveted to the base bracket, the Teflon flat washer is not easily damaged. The structure is smoother and has a better feel during movement, which improves the overall service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the utility model from a first perspective;

[0023] Figure 3 A schematic diagram of the internal structure of the utility model from a second perspective;

[0024] Figure 4 It is a schematic diagram of the local structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 6 For the utility model Figure 5 Enlarged view of point A in the middle.

[0027] In the figure: 1. Main body; 2. Base bracket; 3. Corrugated elastic washer; 4. POM sleeve; 5. Upper connecting rod; 6. Lower connecting rod; 7. Teflon flat washer; 8. Step rivet; 9. First through hole; 10. Movable block; 11. Second through hole; 12. Rotating shaft; 13. Third through hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] The following describes an embodiment of the present invention based on its overall structure.

[0030] A new type of rotating structure of the connecting rod of the small table of the car seat, such as Figure 1-5 As shown, it includes a body 1, an upper connecting rod 5 with one end extending to the outside of the body 1 is movably connected inside the body 1, and a lower connecting rod 6 with one end extending to the outside of the body 1 is movably connected inside the body 1. The top of the upper connecting rod 5 and the lower connecting rod 6 are both provided with a second through hole 11, wherein the angle of the upper connecting rod 5 can be adjusted actively under the active action of the movable block 10 and the second through hole 11, so as to better change the overall angle of the body 1 and facilitate use;

[0031] Exemplarily, the top ends of the upper connecting rod 5 and the lower connecting rod 6 are movably connected to the base bracket 2, and the base bracket 2 and the upper connecting rod 5 and the lower connecting rod 6 are movably connected by the step rivet 8 matched with the second through hole 11. A POM sleeve 4 is provided between the base bracket 2 and the upper connecting rod 5 and the lower connecting rod 6, wherein the movable block 10 provided at the bottom end of the upper connecting rod 5 and the first through hole 9 opened at the bottom end of the lower connecting rod 6 can be linked by adjusting the angle with the main body 1, so that the main body 1 can change the angle, and the movable block 10 at the bottom end of the upper connecting rod 5 is penetrated by the step rivet 8 so that the upper connecting rod 5 is fixed to the main body 1 without hindering the angle adjustment of the upper connecting rod 5, and the first through hole 9 opened at the bottom end of the lower connecting rod 6 is penetrated by the step rivet 8 so that the lower connecting rod 6 is fixed to the main body 1 without hindering the angle adjustment of the rotating shaft 12 set on its outer side;

[0032] In some examples, a corrugated elastic washer 3 is provided between the base bracket 2 and the POM sleeve 4, and a Teflon flat washer 7 is provided between the upper connecting rod 5, the lower connecting rod 6 and the step rivet 8. The angle of the lower connecting rod 6 will also change due to the movement of the main body 1. The first through hole 9 at the bottom end of the lower connecting rod 6 located inside the main body 1 will rotate on the bolt provided inside the main body 1, with the first through hole 9 as the axis. When the lower connecting rod 6 moves to a certain angle, one end of the lower connecting rod 6 will abut against one end of the main body 1.

[0033] Furthermore, the movable block 10 at the bottom end of the upper connecting rod 5 is fixed by passing through a stepped rivet 8, and the first through hole 9 opened at the bottom end of the lower connecting rod 6 is fixed by passing through a stepped rivet 8;

[0034] Exemplarily, the main body 1 and the upper connecting rod 5 are movably connected through a movable block 10, and two groups of third through holes 13 that cooperate with the step rivets 8 are opened at one end of the base bracket 2. The angle of the upper connecting rod 5 will be adjusted actively under the active control of the movable block 10 and the step rivet 8 fixed on the second through hole 11, so as to better change the overall angle of the main body 1, so as to cooperate in rotating the main body 1 to a suitable position.

[0035] The working principle of the present utility model is as follows: when in use, the base bracket 2 is fixed to the back plate of the car seat by screws, and then the outside user manually applies an upward pulling force to the body 1;

[0036] At this time, the upper connecting rod 5 will bear the force first, that is, the movable block 10 at the bottom end of the upper connecting rod 5 is located inside the body 1 and will rotate through the rotating shaft 12 provided inside the body 1. At the same time, because a bearing is provided at the connection between the movable block 10 and the upper connecting rod 5, the angle of the upper connecting rod 5 will be adjusted actively under the active influence of the movable block 10 and the step rivet 8 fixed on the second through hole 11, so as to better change the overall angle of the body 1 and facilitate use;

[0037] When the user pulls the main body 1 upward, the lower connecting rod 6 will also change its angle due to the movement of the main body 1. The first through hole 9 at the bottom end of the lower connecting rod 6 is located inside the main body 1 and rotates on the bolt provided inside the main body 1. With the first through hole 9 as the axis, and after the lower connecting rod 6 moves to a certain angle, one end of the lower connecting rod 6 will abut against one end of the main body 1 to be fixed, thereby preventing the main body 1 from turning over when the user is in use;

[0038] Specifically, the movable block 10 provided at the bottom end of the upper connecting rod 5 and the first through hole 9 opened at the bottom end of the lower connecting rod 6 can be linked with the angle adjustment of the main body 1, so that the angle of the main body 1 can be changed, and the movable block 10 at the bottom end of the upper connecting rod 5 is penetrated by the stepped rivet 8 so that the upper connecting rod 5 is fixed to the main body 1 without hindering the angle adjustment of the upper connecting rod 5, and the first through hole 9 opened at the bottom end of the lower connecting rod 6 is penetrated by the stepped rivet 8 so that the lower connecting rod 6 is fixed to the main body 1 without hindering the angle adjustment of the rotating shaft 12 set on the outer side thereof;

[0039] The first through hole 9 at the bottom end of the upper connecting rod 5 and the lower connecting rod 6 is penetrated by a step rivet 8, which is matched with the third through hole 13 of the body 1. A corrugated elastic washer 3 is also provided on the outside of the step rivet 8. The corrugated elastic washer 3 has axial elastic characteristics. After the step rivet 8 is matched with the base bracket 2, the axial dimensional error caused by the manufacturing process of the POM sleeve and the step rivet 8 can be reduced, thereby reducing the manufacturing difficulty and labor cost, thereby improving production efficiency and making the rotational internal resistance after riveting more stable and the quality more controllable.

[0040] The POM sleeve 4 is an injection molded part, and its dimensional accuracy is easier to control, while the Teflon flat washer 7 is relatively cheap, which reduces the cost of the whole machine and directly increases the profit of the product.

[0041] Specifically, after the step rivet 8 is riveted to the base bracket 2, it is not easy to damage the Teflon flat washer 3. During the assembly process, the step surface of the step rivet 8 of the new structure contacts the base bracket 2 first, and it is not easy to cause damage to the Teflon flat washer 3 after riveting, making the structure smoother and better in feel during movement, thereby improving the overall service life of the product.

[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A novel connecting rod rotating structure for a small table in a car seat, comprising a main body (1), characterized in that: The body (1) is internally movably connected to an upper connecting rod (5) with one end extending to the outside of the body (1), and the body (1) is internally movably connected to a lower connecting rod (6) with one end extending to the outside of the body (1). The top ends of the upper connecting rod (5) and the lower connecting rod (6) are movably connected to a base bracket (2). The base bracket (2) and the upper connecting rod (5) and the lower connecting rod (6) are all movably connected via step rivets (8). A POM sleeve (4) is provided between the base bracket (2) and the upper connecting rod (5) and the lower connecting rod (6). A corrugated elastic washer (3) is provided between the base bracket (2) and the POM sleeve (4). Teflon flat washers (7) are provided between the upper connecting rod (5), the lower connecting rod (6) and the step rivets (8).

2. The novel connecting rod rotating structure of a small table for a car seat according to claim 1 is characterized in that: A cavity cooperating with the upper connecting rod (5) and the lower connecting rod (6) is provided inside the body (1), and the body (1) is movably connected to the upper connecting rod (5) and the lower connecting rod (6) via a rotating shaft (12).

3. The novel connecting rod rotating structure of a small table for a car seat according to claim 2 is characterized in that: The movable block (10) at the bottom end of the upper connecting rod (5) is fixed by passing through a stepped rivet (8), and the first through hole (9) opened at the bottom end of the lower connecting rod (6) is fixed by passing through a stepped rivet (8).

4. The novel connecting rod rotating structure of a small table for a car seat according to claim 1 is characterized in that: A through hole matching the step rivet (8) is provided inside the third through hole (13) of the base bracket (2), and a second through hole (11) is provided at the top of each of the upper connecting rod (5) and the lower connecting rod (6).

5. The novel connecting rod rotating structure of a small table for a car seat according to claim 1 is characterized in that: One end of the base bracket (2) is provided with a plurality of screw holes that match external screws, and one end of the base bracket (2) is provided with two groups of third through holes (13) that match step rivets (8).

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