An anti-submarine pipe connection structure for a height-adjustable seat

Abstract

The present application relates to an anti-submarine tube connection structure for a height-adjustable seat, comprising a seat cushion anti-submarine tube, a seat cushion mounting side plate located on the left and right sides of the seat cushion anti-submarine tube, connecting rods being fixed to the left and right ends of the seat cushion anti-submarine tube respectively, the seat cushion anti-submarine tube being hinged to the seat cushion mounting side plate via the connecting rod, the axis of the hinge axis between the connecting rod and the seat cushion mounting side plate coinciding with the axis of the seat cushion anti-submarine tube; a right-angled triangle-shaped stable zone is formed between the connecting rod and the seat cushion anti-submarine tube, wherein the short right-angled side of the stable zone is located in the area where the connecting rod contacts the tube wall of the seat cushion anti-submarine tube, the long right-angled side of the stable zone is located in the area on one side of the connecting rod close to the seat cushion mounting side plate, and the right-angled vertex of the stable zone and the axis of the seat cushion anti-submarine tube are located in the same vertical plane. The present application can improve the defects of excessively high rigidity requirements for the anti-submarine tube itself and excessive gap between the connecting rod and the side plate, which increase manufacturing cost and difficulty.

Description

Technical Field

[0001] The present application relates to the field of automobile seat adjustment devices, and in particular to an anti-submarine pipe connection structure for a height-adjustable seat. Background Art

[0002] Cars have become an essential means of transportation in people's lives, and car seats need to be adjusted according to different usage needs. Usually, the seat height adjustment is achieved through a seat lifting mechanism, and the setting of the seat lifting mechanism requires corresponding structural adaptation of the seat cushion frame.

[0003] The current traditional car seat lifting structure, such as the car seat lifting mechanism with Chinese patent publication number CN201065081Y, includes side panels, front and rear lifting tubes, and connecting rods. The lifting tubes are directly hinged to the side panels, and the connecting rods are provided with holes for the lifting tubes to pass through and are then fixed to the lifting tubes by welding. There is a certain distance between the connecting rods and the side panels.

[0004] However, the inventor of this structure believes that all the supporting torque is concentrated on the lifting tube, which requires a high degree of rigidity for the lifting tube itself, and the gap between the connecting rod and the side panel is too large, which makes the layout of the seat lifting structure relatively limited, and the rationality of the layout is also required to be high.

[0005] Another example is a front connecting rod structure of a car seat frame with Chinese patent publication number CN206812835U, which includes a seat frame side panel, a connecting rod, and a cross tube. In this solution, the end of the connecting rod is hinged to the seat frame side panel, and the cross tube is hinged to the middle part of the connecting rod.

[0006] Although the seat frame side panels of this structure are not directly hinged to the cross tube, the inventor believes that after the middle part of the connecting rod is hinged to the cross tube, the lifting torsional force is concentrated on the hinge position of the cross tube, the seat frame side panels and the connecting rod. However, the connecting rod itself does not share too much of the torsional force borne by the cross tube. At the same time, when the cross tube is welded to the connecting rod, it cannot be directly welded to the connecting rod at the end of the cross tube. It is still necessary to pass the cross tube through a part to achieve welding stability. This also causes the gap between the connecting rod and the seat frame side panel to be still large, making the layout of the seat lifting structure relatively limited, and the rationality of the layout is also required to be high.

[0007] Another example is the zero-gravity chair seat frame adjustment structure with Chinese patent publication number CN113147532A, which includes a seat frame side panel, an adjustment connecting rod, and a cross bar. The seat frame side panel is directly hinged to the cross bar, and the adjustment connecting rod has a semicircular groove at the end opposite to the cross bar, and the cross bar is welded to the connecting rod through the semicircular groove.

[0008] However, the inventor believes that this structure still causes the cross bar to bear a large torsional force, and the connection part with the connecting rod also causes the cross bar to bear a large torsional force, which makes the welding technology and requirements for the connecting rod and the cross bar more stringent.

[0009] In summary, with regard to the above-mentioned existing solutions, the inventors believe that the rigidity requirements for the anti-submarine tube itself are too high, and the gap between the connecting rod and the side plate is too large, resulting in correspondingly high requirements for the coordination layout of the lifting mechanism, which undoubtedly increases the manufacturing cost and difficulty. Summary of the Invention

[0010] In order to improve the defects of excessively high rigidity requirements for the anti-submarine tube itself and excessively large gaps between the connecting rod and the side plate, which increase manufacturing costs and difficulty, the present application provides an anti-submarine tube connection structure for a height-adjustable seat.

[0011] The present application provides an anti-submarine pipe connection structure for a height-adjustable seat, which adopts the following technical solutions:

[0012] A seat anti-submarine tube connection structure for a height-adjustable seat comprises a seat cushion anti-submarine tube and seat cushion mounting side panels located on the left and right sides of the seat cushion anti-submarine tube, wherein connecting rods are fixed to the left and right ends of the seat cushion anti-submarine tube respectively, and the seat cushion anti-submarine tube is hinged to the seat cushion mounting side panel through the connecting rod, and the axis of the hinge shaft between the connecting rod and the seat cushion mounting side panel coincides with the axis of the seat cushion anti-submarine tube; a right-angled triangle stability zone is formed between the connecting rod and the seat cushion anti-submarine tube, wherein the short right-angled side of the stability zone is located in the area where the connecting rod contacts the tube wall of the seat cushion anti-submarine tube, and the long right-angled side of the stability zone is located in the area on the side of the connecting rod close to the seat cushion mounting side panel, and the right-angled vertex of the stability zone and the axis of the seat cushion anti-submarine tube are located in the same vertical plane.

[0013] Optionally, the connecting rod includes a straight connecting wall close to the side of the seat cushion mounting side plate and two reinforcing walls fixedly connected to the connecting rod respectively, and the two reinforcing walls are fixedly connected to the upper and lower sides of the straight connecting wall respectively.

[0014] Optionally, an energy absorbing hole is provided in the middle of the directly connected wall.

[0015] Optionally, the reinforcement walls are each provided with energy-absorbing holes at corresponding positions.

[0016] Optionally, the edge of the reinforcement wall corresponding to the hypotenuse of the stabilization area includes a first straight section, a first inclined section, a second inclined section and a second straight section connected in sequence, the first straight section is located on the side close to the anti-submarine tube of the seat cushion, and the angle between the first inclined section and the first straight section is greater than the angle between the second inclined section and the first straight section.

[0017] Optionally, a welding area is provided between the reinforcement wall at the short right-angle side of the stabilizing area and the tube wall of the seat cushion anti-submarine tube, and the welding areas located on the upper and lower sides of the tube wall of the seat cushion anti-submarine tube correspond to each other.

[0018] Optionally, the welding area is located in the middle of the short right-angle side of the stabilizing area.

[0019] Optionally, the length of the welding area along the axial direction of the seat cushion anti-submarine tube is smaller than the length of the reinforcement wall at the short right-angle side of the stabilizing area.

[0020] Optionally, the length of the welding area along the axial direction of the seat cushion anti-submarine tube is greater than 1 / 2 of the length of the short right-angle side of the reinforcement wall located in the stabilizing area.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. By improving the connecting rod, the connecting rod and the seat cushion mounting side plate are hinged, and at the same time, the axis of the hinge shaft between the connecting rod and the seat cushion mounting side plate is ensured to coincide with the axis of the seat cushion anti-submarine tube, so that the posture of the entire seat cushion is lower, and at the same time, the gap between the connecting rod and the seat cushion mounting side plate can be made smaller, which also effectively reduces the use of materials, and can reduce the length of the connecting rod as much as possible. The right-angled triangle stability area formed between the improved connecting rod and the seat cushion anti-submarine tube is utilized, so that the connecting rod can also share part of the torque with the seat cushion anti-submarine tube, effectively reducing the rigidity requirement of the seat cushion anti-submarine tube itself, so that the manufacturing cost and manufacturing difficulty of the structure here are also reduced accordingly, and the layout of other matching structures is also made simpler.

[0023] 2. By improving the structure of the connecting rod, the first straight section and the first inclined section of the reinforcement wall can provide more stabilizing force for the short right-angle side of the stabilizing zone, so that the connecting rod can share more torque, while the second inclined section and the second straight section can also correspondingly improve the torque bearing capacity between the connecting rod and the matching structure below.

[0024] 3. Through welding and fixation in the welding area, the overall rigidity of the seat cushion and frame is greatly improved, and the modal state of the seat assembly will also be improved. At the same time, the increase in seat cushion rigidity can make the gap between the seat cushion and frame assembly along the axial direction of the seat cushion anti-submarine tube smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the anti-submarine tube connection structure of a height-adjustable seat in an embodiment of the present application.

[0026] Figure 2 This is a schematic top view of the anti-submarine tube connection structure of a height-adjustable seat in an embodiment of the present application.

[0027] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of the AA surface in the middle.

[0028] Figure 4This is a schematic diagram of a partial display structure of the anti-submarine tube connection structure of a height-adjustable seat in an embodiment of the present application.

[0029] Explanation of the accompanying reference numerals: 1. Seat cushion anti-submarine tube; 2. Seat cushion mounting side plate; 3. Straight wall; 4. Reinforced wall; 5. Energy absorption hole; 6. Stability area; 7. First straight section; 8. First inclined section; 9. Second inclined section; 10. Second straight section; 11. Welding area. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1 to 4 This application is described in further detail.

[0031] The embodiment of the present application discloses an anti-submarine pipe connection structure for a height-adjustable seat. Figure 1 The support frame 2 is provided with a plurality of support rods, each of which is connected to the support frame 2 of the seat cushion anti-submarine tube 1. ...

[0032] In this embodiment, referring to Figure 2 、 3 A right-angled triangle stabilization zone 6 is formed between the connecting rod and the seat cushion anti-submarine tube 1, wherein the short right-angled side of the stabilization zone 6 is located in the area where the connecting rod contacts the tube wall of the seat cushion anti-submarine tube 1, and the long right-angled side of the stabilization zone 6 is located in the area on the side of the connecting rod close to the seat cushion mounting side plate 2. The right-angled vertex of the stabilization zone 6 and the axis of the seat cushion anti-submarine tube 1 are located in the same vertical plane.

[0033] In order to provide better reinforcement performance for the stabilization zone 6, the edges corresponding to the oblique sides of the reinforcement wall 4 and the stabilization zone 6 include a first straight section 7, a first inclined section 8, a second inclined section 9 and a second straight section 10 connected in sequence. The first straight section 7 is located on the side close to the seat cushion anti-submarine tube 1, and the angle between the first inclined section 8 and the first straight section 7 is greater than the angle between the second inclined section 9 and the first straight section 7. After such a design, the area of the reinforcement wall 4 on the side close to the seat cushion anti-submarine tube 1 can be correspondingly increased, which can provide more torque sharing for the seat cushion anti-submarine tube 1. In addition, the second inclined section 9 and the second straight section 10 can achieve better cooperation with the cooperation mechanism of the lifting structure, and at the same time can enhance the ability of the connecting rod itself to resist torsional force, and is not prone to deformation.

[0034] In addition, refer to Figure 4 In order to better increase the overall rigidity of the seat cushion and frame in this embodiment, no other auxiliary fixing structures are added, and the welding difficulty and requirements are reduced. Therefore, a welding area 11 is provided between the reinforcement wall 4 at the short right-angled side of the stabilization area 6 and the tube wall of the seat cushion anti-submarine tube 1, and the welding areas 11 on the upper and lower sides of the tube wall of the seat cushion anti-submarine tube 1 correspond, wherein the welding area 11 is located in the middle position of the short right-angled side of the stabilization area 6, and the axial length of the welding area 11 along the seat cushion anti-submarine tube 1 is less than the length of the reinforcement wall 4 at the short right-angled side of the stabilization area 6. At the same time, the axial length of the welding area 11 along the seat cushion anti-submarine tube 1 is greater than 1 / 2 of the length of the reinforcement wall 4 at the short right-angled side of the stabilization area 6.

[0035] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An anti-submarine pipe connection structure for a height-adjustable seat, comprising a seat cushion anti-submarine pipe (1), and seat cushion mounting side panels (2) located on the left and right sides of the seat cushion anti-submarine pipe (1), characterized in that: Connecting rods are fixed to the left and right ends of the seat cushion anti-submarine tube (1), respectively. The seat cushion anti-submarine tube (1) is hinged to the seat cushion mounting side plate (2) through the connecting rod, and the axis of the hinge shaft of the connecting rod and the seat cushion mounting side plate (2) coincides with the axis of the seat cushion anti-submarine tube (1); a right-angled triangle stabilization area (6) is formed between the connecting rod and the seat cushion anti-submarine tube (1), wherein the short right-angled side of the stabilization area (6) is located in the area where the connecting rod contacts the tube wall of the seat cushion anti-submarine tube (1), and the long right-angled side of the stabilization area (6) is located in the area of the connecting rod close to the seat cushion mounting side plate (2), and the right-angled vertex of the stabilization area (6) and the axis of the seat cushion anti-submarine tube (1) are located in the same vertical plane; the connecting rod comprises a straight connecting wall (3) close to the seat cushion mounting side plate (2), two added walls fixedly connected to the connecting rod, and a plurality of fixed walls. A solid wall (4), wherein the two reinforcing walls (4) are fixedly connected to the upper and lower sides of the straight wall (3) respectively; the edges of the reinforcing wall (4) corresponding to the oblique sides of the stabilizing area (6) include a first straight section (7), a first inclined section (8), a second inclined section (9) and a second straight section (10) connected in sequence, the first straight section (7) being located on a side close to the seat cushion anti-submarine tube (1), and the angle between the first inclined section (8) and the first straight section (7) being greater than the angle between the second inclined section (9) and the first straight section (7); a welding area (11) is provided between the reinforcing wall (4) at the short right-angle side of the stabilizing area (6) and the tube wall of the seat cushion anti-submarine tube (1), and the welding areas (11) located on the upper and lower sides of the tube wall of the seat cushion anti-submarine tube (1) correspond to each other.

2. The anti-submarine pipe connection structure of a height-adjustable seat according to claim 1, characterized in that: An energy absorbing hole (5) is provided in the middle of the directly connected wall (3).

3. The anti-submergence pipe connection structure of a height-adjustable seat according to claim 1, characterized in that: The reinforcement walls (4) are each provided with energy-absorbing holes (5) at corresponding positions.

4. The anti-submergence pipe connection structure of a height-adjustable seat according to claim 1, characterized in that: The welding area (11) is located in the middle of the short right-angle side of the stabilizing area (6).

5. The anti-submergence pipe connection structure of a height-adjustable seat according to claim 4, characterized in that: The length of the welding area (11) along the axial direction of the seat cushion anti-submergence tube (1) is shorter than the length of the reinforcement wall (4) at the short right-angle side of the stabilizing area (6).

6. The anti-submergence pipe connection structure of a height-adjustable seat according to claim 5, characterized in that: The length of the welding area (11) along the axial direction of the seat cushion anti-submergence tube (1) is greater than 1 / 2 of the length of the short right-angled side of the reinforcement wall (4) located in the stabilizing area (6).

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