A car seat frame structure

Abstract

The present invention discloses a car seat frame structure, including a headrest, a rotary damper, a neck support block, and a mounting support; the rotary damper is mounted inside the headrest by screws; the neck support block is embedded and mounted on the inner side of the headrest, and the mounting support is fixedly mounted on both ends of the neck support block, and the mounting support is fixedly connected to the rotary damper by plugging. The present invention has the advantages of reasonable structural design, strong stability and firmness of the hip support structure, good supporting effect, strong bearing capacity, not easy to deform, high comfort of the headrest, strong functionality, and strong practicality through the improvement of the car seat frame structure.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, in particular to a frame structure of an automobile seat. Background Art

[0002] With the vigorous development of the national economy, cars have become an extremely important means of transportation today. Foreign industrially developed countries regard the automobile industry as one of the pillar industries of their economy. Car seats are one of the indispensable accessories in a car. The so-called car seat is the seat you sit on when riding in a car. The comfort of the seat is very important in the personalized design of the vehicle. It is also a part of ensuring the safety performance of the vehicle. A well-designed car seat can provide drivers and passengers with a safe, comfortable, easy-to-operate and fatigue-free driving experience. The rapid development of automobile technology and the improvement of people's requirements for various aspects of automobile performance have also continuously improved the requirements for car seats.

[0003] The car seat frame refers to the internal support frame of the car seat, which is usually welded from steel materials. The seat frame must be able to withstand a certain load. At the same time, the overall comfort of the seat is also closely related to the structure of the seat frame. The hip support structure of the existing seat frame is usually composed of multiple S-shaped springs distributed in an array, which only plays a simple supporting effect. Its structural firmness, stability and comfort are relatively general. In addition, since the pressure of the buttocks on the seat is not uniform, the spring is easily deformed after a long period of use. The deformation of the spring in the middle part is particularly serious, which affects the overall aesthetics and comfort of the seat. In addition, the headrest of the existing car seat has fewer contact points with the head of the occupant, and the effect is not too great.

[0004] In view of this, research and improvement are conducted on the existing problems, and a car seat frame structure is provided, aiming to solve the problems and improve the practical value through this technology. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a car seat frame structure with reasonable structural design, strong stability of the hip support structure, strong firmness, good supporting effect, strong bearing capacity, not easy to deform, high headrest comfort, strong functionality and strong practicality.

[0006] The purpose of the present invention is achieved through the following technical solutions.

[0007] A car seat skeleton structure comprises a headrest, a rotary damper, a neck support block and a mounting support; the rotary damper is mounted inside the headrest by means of screws; the neck support block is embedded and mounted on the inner side of the headrest, and the mounting support is fixedly mounted on both ends of the neck support block, and the mounting support is fixedly connected to the rotary damper by means of plug-in connection.

[0008] As a further optimization of the present technical scheme, it includes a slide rail, a slide rail rear mounting seat, a slide rail front mounting seat, a pull rod mounting seat, a pull rod, a connecting beam, a slide seat, a stroke adjustment handle, a connecting hinge seat, and an inner support seat. The slide rail is mounted at both ends of the connecting beam, and the slide rail and the connecting beam are connected by bolts; the slide rail rear mounting seat is mounted on the bottom of the rear side of the slide rail by bolts; the slide rail front mounting seat is mounted on the bottom of the front side of the slide rail by bolts; the pull rod mounting seat is mounted on the rear side of the slide rail front mounting seat by bolts, and both ends of the pull rod are embedded and mounted on the pull rod mounting seat; the slide seat is mounted on the slide rail, and the slide seat and the slide rail are movably connected by sliding; the two ends of the stroke adjustment handle are connected to the front end of the slide seat by a hinge manner, and the stroke adjustment handle is engaged with the slide seat; the inner support seat is mounted above the slide seat, and the two ends of the inner support seat are connected to the slide seat by a connecting hinge seat.

[0009] As a further optimization of the technical solution, it includes a height adjuster, a seat cushion frame, and a height adjustment handwheel. The height adjuster is installed at the connection between the inner support seat and the front side of the connecting hinge seat; the seat cushion frame is snap-fitted and installed on the outer side of the inner support seat, and the seat cushion frame and the inner support seat are connected by bolts; the height adjustment handwheel is installed on the outer wall of the left seat cushion frame by bolts, and the end of the height adjustment handwheel is engaged with the height adjuster.

[0010] As a further optimization of the technical solution, it includes a front crossbeam and a rear crossbeam. The front crossbeam is installed above the front side of the slide, and the two ends of the front crossbeam are connected to the connecting hinge seat by a through-hole manner; the rear crossbeam is installed above the rear side of the slide, and the two ends of the rear crossbeam are connected to the connecting hinge seat by a through-hole manner.

[0011] As a further optimization of the technical solution, it includes a hanging ring and a hip support mechanism, wherein the hip support mechanism is installed between the front crossbeam and the rear crossbeam through the hanging ring; the hip support mechanism includes a first connecting piece, a second connecting piece, a third connecting piece, and a second supporting spring; the first connecting piece is located in the middle of the hip support mechanism, the second connecting piece is installed on the front and rear sides of the first connecting piece, and the third connecting piece is installed on the left and right sides of the first connecting piece; the first connecting piece, the second connecting piece, and the third connecting piece are connected by a second supporting spring; the hanging ring is sleeved and installed on the outer wall of the front crossbeam and the rear crossbeam, and the second connecting piece, the third connecting piece are connected to the front crossbeam and the rear crossbeam through the second supporting spring; the backrest base is installed on the inner side of the rear end of the seat cushion frame by a hinged manner.

[0012] As a further optimization of the technical solution, it includes a backrest base, a backrest angle adjuster, an angle adjustment handle, a lumbar support frame, a backrest frame, a first support spring, a backrest support plate, and a fixed spring. The backrest angle adjuster is installed on the outer wall of the backrest base by bolts, and the seat cushion frame and the backrest base are connected by the backrest angle adjuster; the angle adjustment handle is installed on the outer wall of the left seat cushion frame by an articulated manner, and the angle adjustment handle is connected to the backrest angle adjuster by an articulated manner; the lumbar support frame is installed above the seat cushion frame, and the lumbar support frame and the seat cushion frame are connected by bolts; the fixed spring is suspended between two lumbar support frames, and the backrest angle adjuster is suspended on the fixed spring; the backrest frame is installed above the lumbar support frame, and the backrest frame and the lumbar support frame are connected by welding; the first support spring is installed on the backrest frame by welding.

[0013] As a further optimization of the technical solution, it includes a headrest tube and a headrest rod. The headrest tube is installed on the outer wall on the front side of the top end of the backrest frame by welding; the headrest rod is fixedly installed inside the headrest, and the headrest rod passes through the headrest and extends to the outside of the headrest rod; the headrest is connected to the headrest tube by plugging through the headrest rod.

[0014] As a further optimization of the technical solution, a groove for accommodating a neck support block is provided at the bottom of the front side of the headrest, and circular grooves for accommodating a rotary damper are provided on the inner walls on both sides of the groove, and the rotary damper is embedded and installed on the inner wall of the groove by bolts.

[0015] As a further optimization of the technical solution, the rotary damper is symmetrically installed at two locations inside the headrest, and the installation groove of the rotary damper is rectangular.

[0016] As a further optimization of the present technical solution, the mounting pillar is a quadrangular prism-shaped structure, and the neck support block is connected to the rotary damper by plugging through the mounting pillar, and the neck support block is arranged as a rotating mechanism, and the rotation angle of the neck support block is 0-70 degrees. The connection between the quadrangular prism-shaped mounting pillar and the rotary damper is more secure and effectively prevents slipping at the connection, and the neck support block is unfolded and folded by rotation.

[0017] As a further optimization of the present technical solution, the neck support block is a columnar structure with an arc-shaped side view, and arc transitions are provided at both ends of the neck support block. The neck support block is composed of an internal arc-shaped columnar skeleton and a core and skin wrapped on the outside, which has a high fit with the neck and improves comfort.

[0018] As a further optimization of the present technical solution, the hip support mechanism is a frame-type support structure composed of a first connecting plate, a second connecting plate, a third connecting plate, and a second support spring. The first connecting plate, the second connecting plate, and the third connecting plate are distributed in a diamond shape in the hip support mechanism.

[0019] As a further optimization of the present technical solution, the first connecting plate, the second connecting plate and the third connecting plate are all composed of an upper supporting disc and a bottom arc-shaped supporting block, and an arc-shaped groove for fixing the second supporting spring is provided on the inner wall of the arc-shaped supporting block.

[0020] As a further optimization of the technical solution, both the first support spring and the second support spring are S-shaped springs.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] ①. The rotary damper of the present invention is symmetrically installed at two locations inside the headrest, and the installation groove of the rotary damper is rectangular, the installation pillar is a quadrangular prism structure, and the neck support block is connected to the rotary damper by plugging through the installation pillar, and the neck support block is arranged as a rotating mechanism. The rotation angle of the neck support block is set to 0-70 degrees. The connection between the quadrangular prism-shaped installation pillar and the rotary damper is more firm and effectively prevents slipping at the connection. The neck support block is unfolded and folded by rotation, and can be used as a neck support after unfolding, thereby improving the overall comfort.

[0023] ②. A groove for accommodating a neck support block is provided at the bottom of the front side of the headrest of the present invention, and circular grooves for accommodating a rotary damper are provided on the inner walls on both sides of the groove. The rotary damper is embedded and installed on the inner wall of the groove by bolts. The installation is concealed, and no connecting parts or installation marks can be seen from the outside, thereby improving the overall aesthetics.

[0024] ③. The hip support mechanism of the present invention is fixed between the front cross beam and the rear cross beam through the second support spring, and the hip support mechanism is a frame-type support structure composed of a first connecting piece, a second connecting piece, a third connecting piece, and a second support spring. The first connecting piece, the second connecting piece, and the third connecting piece are distributed in a diamond shape in the hip support mechanism, and the first connecting piece, the second connecting piece, and the third connecting piece are interconnected by the second support spring. The arrangement has good support, a stable structure, and strong firmness, can disperse the pressure received, improves the load-bearing capacity, and is not easy to deform.

[0025] The invention improves the frame structure of the automobile seat and has the advantages of reasonable structural design, strong stability and firmness of the hip support structure, good supporting effect, strong bearing capacity, not easy to deform, high comfort of the headrest, strong functionality and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 The neck support block of the present invention is unfolded in a side view;

[0028] Figure 3 It is a schematic diagram of the top view structure of the present invention;

[0029] Figure 4 for Figure 1 The enlarged structural diagram at A in the middle;

[0030] Figure 5 It is a schematic structural diagram of the hip support mechanism of the present invention;

[0031] Figure 6 It is a schematic diagram of the exploded structure of the headrest of the present invention;

[0032] Figure 7 is a schematic diagram of the structure of the first connecting piece of the present invention;

[0033] Figure 8 is a schematic diagram of the structure of the second connecting piece of the present invention;

[0034] Fig. 9 is a schematic diagram of the structure of the third connecting piece of the present invention;

[0035] Fig.10 It is a schematic diagram of the cross-sectional structure of the headrest of the present invention.

[0036] In the figure: slide rail 1, slide rail rear mounting seat 2, slide rail front mounting seat 3, pull rod mounting seat 4, pull rod 5, connecting beam 6, slide seat 7, stroke adjustment handle 8, connecting hinge seat 9, inner support seat 10, height adjuster 11, seat cushion frame 12, height adjustment hand wheel 13, front cross beam 14, rear cross beam 15, hip support mechanism 16, hanging ring 17, backrest base 18, backrest angle adjuster 19, angle adjustment handle 20, lumbar support frame 21, backrest frame 22, first support spring 23, backrest support plate 24, fixing spring 25, headrest tube 26, headrest 27, headrest rod 28, rotary damper 29, neck support block 30, mounting pillar 31, first connecting piece 1601, second connecting piece 1602, third connecting piece 1603, second support spring 1604. DETAILED DESCRIPTION

[0037] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] like Figures 1 to 10As shown, a car seat skeleton structure includes: a slide rail 1, a slide rail rear mounting seat 2, a slide rail front mounting seat 3, a pull rod mounting seat 4, a pull rod 5, a connecting beam 6, a slide seat 7, a stroke adjustment handle 8, a connecting hinge seat 9, an inner support seat 10, a height adjuster 11, a cushion skeleton 12, a height adjustment hand wheel 13, a front cross beam 14, a rear cross beam 15, a hip support mechanism 16, a hanging ring 17, a backrest base 18, a backrest angle adjuster 19, an angle adjustment handle 20, a lumbar support skeleton 21, a backrest skeleton 22, a first support spring 23, a backrest support plate 24, a fixing spring 25, a headrest tube 26, a headrest 27, a headrest rod 28, a rotary damper 29, a neck support block 30, a mounting pillar 31, a first connecting piece 1601, and a second connecting piece 1602. 02, the third connecting piece 1603, the second supporting spring 1604; the slide rail 1 is installed at both ends of the connecting beam 6, and the slide rail 1 and the connecting beam 6 are connected by bolts; the slide rail rear mounting seat 2 is installed at the bottom of the rear side of the slide rail 1 by bolts; the slide rail front mounting seat 3 is installed at the bottom of the front side of the slide rail 1 by bolts; the pull rod mounting seat 4 is installed on the rear side of the slide rail front mounting seat 3 by bolts, and the two ends of the pull rod 5 are embedded and installed on the pull rod mounting seat 4; the slide seat 7 is installed on the slide rail 1, and the slide seat 7 and the slide rail 1 are movably connected by sliding; the two ends of the stroke adjustment handle 8 are connected to the front end of the slide seat 7 by hinged manner, and the stroke adjustment handle 8 is engaged with the slide seat 7; the inner support seat 10 is installed above the slide seat 7, and the two ends of the inner support seat 10 are connected to the slide seat 7 by The connecting hinge seat 9 is connected; the height adjuster 11 is installed at the connection between the inner support seat 10 and the front side of the connecting hinge seat 9; the seat cushion frame 12 is buckled and installed on the outer side of the inner support seat 10, and the seat cushion frame 12 and the inner support seat 10 are connected by bolts; the height adjustment hand wheel 13 is installed on the outer wall of the left seat cushion frame 12 by bolts, and the end of the height adjustment hand wheel 13 is meshed with the height adjuster 11; the front cross beam 14 is installed on the upper front side of the slide 7, and the two ends of the front cross beam 14 are connected to the connecting hinge seat 9 by a through-type; the rear cross beam 15 is installed on the upper rear side of the slide 7, and the two ends of the rear cross beam 15 are connected to the connecting hinge seat 9 by a through-type; the hip support mechanism 16 is installed between the front cross beam 14 and the rear cross beam 15 through the hanging ring 17; the hip support mechanism 16 The buttocks support mechanism 16 is composed of a first connecting piece 1601, a second connecting piece 1602, a third connecting piece 1603, and a second supporting spring 1604; the first connecting piece 1601 is located in the middle of the buttocks support mechanism 16, the second connecting piece 1602 is installed on the front and rear sides of the first connecting piece 1601, and the third connecting piece 1603 is installed on the left and right sides of the first connecting piece 1601; the first connecting piece 1601, the second connecting piece 1602, and the third connecting piece 1603 are connected by the second supporting spring 1604; the hanging ring 17 is installed on the outer wall of the front cross beam 14 and the rear cross beam 15, and the second connecting piece 1602, the third connecting piece 1603 are connected to the front cross beam 14 and the rear cross beam 15 by the second supporting spring 1604;The backrest base 18 is hingedly mounted on the inner side of the rear end of the seat cushion frame 12; the backrest angle adjuster 19 is bolted on the outer wall of the backrest base 18, and the seat cushion frame 12 and the backrest base 18 are connected through the backrest angle adjuster 19; the angle adjustment handle 20 is hingedly mounted on the outer wall of the left seat cushion frame 12, and the angle adjustment handle 20 is hingedly connected to the backrest angle adjuster 19; the lumbar support frame 21 is mounted above the seat cushion frame 12, and the lumbar support frame 21 is bolted to the seat cushion frame 12; the fixing spring 25 is suspended between the two lumbar support frames 21, and the backrest angle adjuster 19 is suspended on the fixing spring 25; the backrest frame 22 is mounted on the lumbar support frame 21, and the backrest frame 22 is connected to the lumbar support frame 21 by welding; the first support spring 23 is installed on the backrest frame 22 by welding; the headrest tube 26 is installed on the outer wall of the front side of the top of the backrest frame 22 by welding; the headrest rod 28 is fixedly installed inside the headrest 27, and the headrest rod 28 passes through the headrest 27 and extends to the outside of the headrest rod 28; the headrest 27 is connected to the headrest tube 26 by plugging through the headrest rod 28; the rotary damper 29 is installed inside the headrest 27 by screws; the neck support block 30 is embedded and installed on the inner side of the headrest 27, and the mounting pillars 31 are fixedly installed at both ends of the neck support block 30, and the mounting pillars 31 are fixedly connected to the rotary damper 29 by plugging. ;

[0039] like Figure 2 As shown, the neck support block 30 forms an arc-shaped protrusion after being unfolded, which effectively supports the neck of the passenger and improves the riding comfort.

[0040] like Fig.10 As shown, after the lower end of the neck support block 30 is unfolded, it can abut against the bottom of the inner groove of the headrest 27 to play a role of limiting.

[0041] Specific implementation steps:

[0042] The overall outer part is covered with an inner core and a skin, and then the rear mounting seat 2 and the front mounting seat 3 of the slide rail are fixed to the frame by bolts. The hip support mechanism 16 adopts a frame-type support structure composed of a first connecting piece 1601, a second connecting piece 1602, a third connecting piece 1603, and a second support spring 1604. The first connecting piece 1601, the second connecting piece 1602, and the third connecting piece 1603 are distributed in a rhombus shape in the hip support mechanism 16, and the first connecting piece 1601, the second connecting piece 1602, and the third connecting piece 1603 are interconnected by the second support spring 1604. When the hip support mechanism 16 is under pressure, the pressure can be effectively transmitted and dispersed through the above-mentioned connecting pieces and support springs, thereby improving the load-bearing capacity and support effect of the seat frame. The current headrest has fewer contact positions with the head of the occupant, so the effect is relatively small. Many car owners choose to install an arc-shaped headrest later, and the setting of the neck support block 30 effectively solves this problem. The neck support block 30 can be unfolded by pulling (such as Figure 2 It provides effective support for the neck of the passenger, improves the riding comfort, and can be folded and hidden, which is very practical.

[0043] In summary, the frame structure of the automobile seat is symmetrically installed at two places inside the headrest 27 through the rotary damper 29, and the installation groove of the rotary damper 29 is rectangular, the installation pillar 31 is a quadrangular prism structure, and the neck support block 30 is connected to the rotary damper 29 by plugging through the installation pillar 31, the neck support block 30 is set as a rotating mechanism, and the rotation angle of the neck support block 30 is set to 0-70 degrees. The connection between the quadrangular prism-shaped installation pillar 31 and the rotary damper 29 is more firm and effectively prevents slipping at the connection. The neck support block 30 is unfolded and folded by rotation, and can be used as a neck support after unfolding, thereby improving the overall comfort. A groove for accommodating the neck support block 30 is provided at the bottom of the front side of the headrest 27, and circular grooves for accommodating the rotary damper 29 are provided on the inner walls on both sides of the groove. The rotary damper 29 is embedded and installed on the inner wall of the groove by bolts. The installation is hidden, and no connector and installation traces can be seen from the outside, thereby improving the overall aesthetics. The hip support mechanism 16 is fixed between the front cross beam 14 and the rear cross beam 15 through the second support spring 1604, and the hip support mechanism 16 is a frame support structure composed of a first connecting piece 1601, a second connecting piece 1602, a third connecting piece 1603, and a second support spring 1604. The first connecting piece 1601, the second connecting piece 1602, and the third connecting piece 1603 are distributed in a rhombus shape in the hip support mechanism 16, and the first connecting piece 1601, the second connecting piece 1602, and the third connecting piece 1603 are connected to each other through the second support spring 1604. The support is good, the structure is stable, the firmness is strong, the pressure received can be dispersed, the bearing capacity is improved, and deformation is not easy to occur; through the improvement of the frame structure of the automobile seat, the structure has reasonable design, the hip support structure 16 has strong stability, strong firmness, good support effect, strong bearing capacity, not easy to deform, the headrest is highly comfortable, the functionality is strong, and the practicality is strong, thereby effectively solving the problems and shortcomings of the existing device.

Claims

1. A car seat frame structure, characterized in that It includes a headrest, a rotary damper, a neck support block, and a mounting pillar; the rotary damper is installed inside the headrest by screws; the neck support block is embedded and installed on the inner side of the headrest, and the mounting pillars are fixedly installed on the two ends of the neck support block, and the mounting pillars are fixedly connected to the rotary damper by plugging; it also includes a slide rail, a slide rail rear mounting seat, a slide rail front mounting seat, a pull rod mounting seat, a pull rod, a connecting beam, a slide seat, a stroke adjustment handle, a connecting hinge seat, and an inner support seat, the slide rail is installed at both ends of the connecting beam, and the slide rail and the connecting beam are connected by bolts; the slide rail rear mounting seat is installed at the bottom of the rear side of the slide rail by bolts; the slide rail front mounting seat is installed at the bottom of the front side of the slide rail by bolts; the pull rod mounting seat is installed at the front mounting seat of the slide rail by bolts The rear side of the mounting seat, and the two ends of the pull rod are embedded and installed on the pull rod mounting seat; the sliding seat is installed on the slide rail, and the sliding seat and the slide rail are movably connected by sliding; the two ends of the stroke adjustment handle are connected to the front end of the sliding seat by a hinged manner, and the stroke adjustment handle is engaged with the sliding seat; the inner support seat is installed above the sliding seat, and the two ends of the inner support seat are connected to the sliding seat by a connecting hinge seat; a groove for accommodating a neck support block is provided at the bottom of the front side of the headrest, and circular grooves for accommodating a rotary damper are provided on the inner walls on both sides of the groove, and the rotary damper is embedded and installed on the inner wall of the groove by bolts; it also includes a height adjuster, a seat cushion frame, and a height adjustment hand wheel, and the height adjuster is rotatably arranged on the inner support seat and the connecting hinge seat The front connection; the seat cushion frame is buckled and installed on the outer side of the inner support seat, and the seat cushion frame and the inner support seat are connected by bolts; the height adjustment hand wheel is installed on the outer wall of the left seat cushion frame by bolts, and the end of the height adjustment hand wheel is meshed with the height adjuster; it also includes a front cross beam and a rear cross beam, the front cross beam is installed on the front upper side of the slide, and the two ends of the front cross beam are connected to the connecting hinge seat by a through-type; the rear cross beam is installed on the upper side of the rear side of the slide, and the two ends of the rear cross beam are connected to the connecting hinge seat by a through-type; it also includes a hanging ring and a hip support mechanism, the hip support mechanism is installed between the front cross beam and the rear cross beam by a hanging ring; the hip support mechanism includes a first connecting plate, a second connecting plate, a third connecting plate, a second support Spring; the first connecting piece is located in the middle position of the hip support mechanism, the second connecting piece is installed on the front and rear sides of the first connecting piece, and the third connecting piece is installed on the left and right sides of the first connecting piece; the first connecting piece, the second connecting piece, and the third connecting piece are connected by a second supporting spring; the hanging ring is sleeved and installed on the outer walls of the front crossbeam and the rear crossbeam, and the second connecting piece, the third connecting piece are connected to the front crossbeam and the rear crossbeam through the second supporting spring; it also includes a backrest base, a backrest angle adjuster, an angle adjustment handle, a lumbar support frame, a backrest frame, a first supporting spring, a backrest support plate, and a fixing spring. The backrest angle adjuster is installed on the outer wall of the backrest base by bolts, and the seat cushion frame is connected to the backrest base through the backrest angle adjuster;The angle adjustment handle is hingedly mounted on the outer wall of the left seat cushion frame, and the angle adjustment handle is hingedly connected to the backrest angle adjuster; the lumbar support frame is mounted above the seat cushion frame, and the lumbar support frame is connected to the seat cushion frame by bolts; the fixed spring is suspended between the two lumbar support frames, and the backrest angle adjuster is suspended on the fixed spring; the backrest frame is mounted above the lumbar support frame, and the backrest frame is connected to the lumbar support frame by welding; the first support spring is welded on the backrest frame; the backrest base is hingedly mounted on the inner side of the rear end of the seat cushion frame; it also includes a headrest tube and a headrest rod, the headrest tube is welded on the outer wall of the front side of the top end of the backrest frame; the headrest rod is fixedly mounted inside the headrest, and the headrest rod passes through the headrest and extends to the outside of the headrest rod; the headrest is connected to the headrest tube by plugging through the headrest rod. ; 2. The automotive seat frame structure according to claim 1, characterized in that The rotary damper is symmetrically installed at two locations inside the headrest, and the installation grooves of the rotary damper are rectangular.

3. The automobile seat frame structure according to claim 1, characterized in that The mounting support is a quadrangular prism-shaped structure, and the neck support block is connected to the rotary damper by plugging through the mounting support. The neck support block is arranged as a rotating mechanism, and the rotation angle of the neck support block is 0-70 degrees. The connection between the quadrangular prism-shaped mounting support and the rotary damper is more secure and effectively prevents slipping at the connection, and the neck support block is unfolded and folded by rotation.

4. The automobile seat frame structure according to claim 1, characterized in that The neck support block is a columnar structure with an arc shape in side view, and arc transitions are provided at both ends of the neck support block. The neck support block is composed of an internal arc columnar skeleton and a core and skin wrapped on the outside, which has a high fit with the neck and improves comfort.

5. The automobile seat frame structure according to claim 4, characterized in that The hip support mechanism is a frame-type support structure composed of a first connecting piece, a second connecting piece, a third connecting piece, and a second support spring. The first connecting piece, the second connecting piece, and the third connecting piece are distributed in a diamond shape in the hip support mechanism.

6. The automobile seat frame structure according to any one of claims 1 or 5, characterized in that The first connecting piece, the second connecting piece and the third connecting piece are all composed of an upper supporting disc and a bottom arc-shaped supporting block, and an arc-shaped groove for fixing the second supporting spring is formed on the inner wall of the arc-shaped supporting block.

7. The automobile seat frame structure according to claim 1, characterized in that The first support spring and the second support spring are both S-shaped springs.

Images