Seat headrest connecting structure, automobile seat and automobile

Abstract

The utility model provides a seat headrest connecting structure, an automobile seat and an automobile, and relates to the technical field of automobile parts, the connecting structure comprises a first plug-in and a second plug-in, the first plug-in is used for being installed at one end, extending into a seat backrest, of a headrest rod and connected with a headrest wire harness, the first plug-in is provided with a first contact, and the second plug-in is provided with a second contact. The second plug-in is used for being installed on a seat backrest and connected with the backrest wire harness, a second contact is arranged on the second plug-in, and the second contact is used for being in butt joint with the first contact so that the headrest wire harness can be connected with the backrest wire harness. According to the utility model, the first contact on the first plug-in is in butt joint with the second contact on the second plug-in, so that the detachable wire harness connection of the headrest wire harness and the backrest wire harness is realized, and the installation mode is simple. When the seat headrest needs to be detached from the seat backrest, the seat headrest can be pulled upwards, so that the first contact of the first inserting piece is separated from the second contact of the second inserting piece, the backrest wire harness is disconnected from the headrest wire harness, and the seat headrest is conveniently detached.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a seat headrest connection structure, an automobile seat and an automobile. Background Art

[0002] As people's requirements for automobile functionality increase, more and more cars are installing speakers in the seat headrests to meet the needs of music lovers.

[0003] The audio wiring harness in the existing headrest and the wiring harness in the seat back are usually connected as one, which makes the headrest and the seat back unable to be removed. When the front seats are folded down, the headrest may interfere with the rear seats, and the front seats cannot be folded down and connected flush with the rear seats, affecting people's experience when resting during the journey. Utility Model Content

[0004] The utility model aims to solve the technical problem that the headrest and the seat backrest of the existing seat equipped with audio equipment cannot be conveniently disassembled.

[0005] In the first aspect, the utility model provides a seat headrest connection structure, including a first plug-in and a second plug-in, the first plug-in is used to be installed on one end of the headrest rod extending into the seat back and connected to the headrest wiring harness, the first plug-in is provided with a first contact, the second plug-in is used to be installed on the seat back and connected to the backrest wiring harness, the second plug-in is provided with a second contact, the second contact is used to dock with the first contact to connect the headrest wiring harness with the backrest wiring harness.

[0006] In the utility model, for example, the upper end of the headrest rod can be fixedly connected to the seat headrest, the lower end of the headrest rod can be installed with a first plug-in, one end of the headrest harness is connected to the first plug-in, and the other end passes through the headrest rod to be connected to the audio equipment in the seat headrest, and the second plug-in is installed on the seat back, and the first contact on the first plug-in is connected with the second contact on the second plug-in to realize the detachable harness connection between the headrest harness and the backrest harness, and the installation method is simple. When the seat headrest needs to be removed from the seat back, the seat headrest can be pulled upward to separate the first contact of the first plug-in from the second contact of the second plug-in, and the backrest harness is disconnected from the headrest harness, so that the seat headrest can be removed easily, and the front seat can be folded down to be connected flush with the rear seat, thereby improving the comfort of people's rest during the journey.

[0007] Optionally, the second plug-in includes an insert plate, an elastic member and a base plate, the two ends of the elastic member are respectively abutted against the base plate and the insert plate, the insert plate is provided with the second contact, the backrest wiring harness is used to pass through the base plate to connect with the insert plate, when the headrest rod drives the first plug-in to move toward the seat base, the insert plate moves toward the base plate to compress the elastic member.

[0008] Optionally, the second plug-in also includes a cylinder, which is used to be installed on the seat back, and the first opening and the second opening are respectively provided at both ends of the cylinder, the plug plate is movably arranged in the cylinder, and the second contact is provided at a position on the plug plate corresponding to the first opening, the first plug-in is used to extend into the cylinder through the first opening so that the first contact is connected with the second contact, and the base plate is installed in cooperation with the second opening.

[0009] Optionally, the cross-sectional dimension of the first opening is smaller than that of the plug plate, and the plug plate is used to abut against one end of the cylinder body having the first opening; and / or, a cavity is provided on the plug plate, and the second contact is provided in the cavity.

[0010] Optionally, a guide groove extending in the axial direction is provided on the circumferential side wall of the cylinder, and a guide block matching the guide groove is provided on the circumferential side wall of the insert plate, and the guide block is used to be inserted into the guide groove and slide along the guide groove.

[0011] Optionally, the bottom plate is threadedly connected to the cylinder;

[0012] Alternatively, a protrusion is provided on the outer side of the bottom plate, a groove matching the protrusion is provided on the inner side of the cylinder, and the bottom plate and the cylinder are connected by the protrusion and the groove;

[0013] Alternatively, the first plug-in is threadedly connected to the headrest rod;

[0014] Alternatively, the first plug-in unit is snap-connected with the headrest rod.

[0015] Optionally, the second plug-in and the first plug-in have mutually facing surfaces respectively, and the first plug-in and the second plug-in are used to be attracted to each other through the corresponding magnetic surfaces.

[0016] In the second aspect, the utility model provides a car seat, comprising a headrest rod, a seat back and the above-mentioned seat headrest connection structure, wherein a first plug-in of the seat headrest connection structure is installed on the headrest rod, and a second plug-in of the seat headrest connection structure is installed on the seat back. The advantages of the car seat compared with the prior art are the same as those of the above-mentioned seat headrest connection structure, and will not be repeated.

[0017] Optionally, the car seat also includes a clip and a headrest tube, the headrest tube is installed on the seat back, the headrest rod passes through the headrest tube axially, and when the headrest rod drives the seat headrest to move into place, the clip is used to lock the headrest rod and the headrest tube relative to each other.

[0018] In a third aspect, the utility model provides a car, comprising the above-mentioned car seat. The advantages of the car compared with the prior art are the same as those of the above-mentioned car seat, and will not be described again. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of installing the seat headrest connection structure of an embodiment of the utility model on a car seat;

[0020] Figure 2 This is a schematic diagram of the assembly structure of the first plug-in and the second plug-in of an embodiment of the utility model;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure of the first plug-in in;

[0022] Figure 4 for Figure 2 A schematic diagram of the structure of the second plug-in in;

[0023] Figure 5 It is a schematic diagram of the assembly structure of a first plug-in unit of an embodiment of the utility model and another second plug-in unit;

[0024] Figure 6 This is a schematic diagram of the assembly structure of the cylinder and the bottom plate of an embodiment of the utility model;

[0025] Figure 7 The figure is a schematic diagram of the assembly structure of the headrest rod, the clamping member and the headrest guide tube according to the embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1. First plug-in; 11. First contact; 2. Second plug-in; 21. Plug-in board; 211. Second contact; 212. Guide block; 22. Cylinder; 221. Guide groove; 23. Elastic member; 24. Bottom plate; 241. Protrusion; 3. Headrest rod; 4. Headrest wiring harness; 5. Seat headrest; 6. Seat backrest; 7. Backrest wiring harness; 8. Snap-in; 9. Headrest duct; 10. Audio equipment. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "matched" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, it should be noted that in the description of the present invention, it should be noted that the terminology nouns in the various embodiments, such as "upper", "lower", "front", "back" and other words indicating directions, are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the components and devices referred to must be operated in accordance with the specific directions and specified operations and methods and structures in the specification. Such directional nouns do not constitute a limitation on the present invention.

[0031] In this article, a YZ coordinate system is established, in which the positive direction of the Y axis represents the left, the negative direction of the Y axis represents the right, the positive direction of the Z axis represents the top, and the negative direction of the Z axis represents the bottom. It should also be noted that the aforementioned Y axis and Z axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0032] like Figure 1-5 As shown, a seat headrest connection structure of an embodiment of the utility model includes a first plug-in 1 and a second plug-in 2, wherein the first plug-in 1 is used to be installed on one end of the headrest rod 3 extending into the seat back 6 and connected to the headrest wiring harness 4, the first plug-in 1 is provided with a first contact 11, the second plug-in 2 is used to be installed on the seat back 6 and connected to the backrest wiring harness 7, the second plug-in 2 is provided with a second contact 211, the second contact 211 is used to dock with the first contact 11, so that the headrest wiring harness 4 is connected to the backrest wiring harness 7.

[0033] Specifically, the car seat can be used in a reclining state or not. In different use states, the seat back, seat headrest and other related parts of the car seat have different orientations relative to the car coordinate system. For the convenience of description, the use state of the car seat when it is not reclining is used as an example for explanation. The seat back 6 includes a backrest frame and a soft material sleeved on the outside of the backrest frame. The headrest rod 3 can be a U-shaped rod with an opening facing downward. The upper end of the headrest rod 3 extends into the seat headrest 5 and is fixedly connected to the seat headrest 5. The interior of the headrest rod 3 is hollow and can be used for the headrest harness 4 to pass through. The lower end of the headrest rod 3 is detachably connected with the first plug-in 1 and extends into the seat back 6. One end of the headrest harness 4 is connected to the first plug-in 1, and the other end passes through the headrest rod 3 upward to connect with the audio equipment 10. The second plug-in 2 can be welded and fixed to the frame of the seat back 6. The second plug-in 2 is provided with a second contact 211 facing upward. The first contact 11 may be a convex contact, and the second contact 211 may be a concave contact. A plurality of the first contact 11 and the second contact 211 may be provided correspondingly.

[0034] In this embodiment, one end of the headrest harness 4 is connected to the first plug-in 1, and the other end passes through the headrest rod 3 to connect with the audio device 10 in the seat headrest 5. The second plug-in 2 is installed on the seat back 6, and the first contact 11 on the first plug-in 1 is connected with the second contact 211 on the second plug-in 2 to realize the detachable harness connection between the headrest harness 4 and the backrest harness 7, and the installation method is simple. When the seat headrest 5 needs to be removed from the seat back 6, the seat headrest 5 can be pulled upward to separate the first contact 11 of the first plug-in 1 from the second contact 211 of the second plug-in 2, and the backrest harness 7 is disconnected from the headrest harness 4, so as to facilitate the removal of the seat headrest 5, facilitate the front seat to be folded down and connected with the rear seat flush, and improve the comfort of people's rest during the journey.

[0035] like Figure 2 , 5 As shown in Figure 6, optionally, the second plug-in 2 includes a plug-in plate 21, an elastic member 23 and a bottom plate 24, the two ends of the elastic member 23 are respectively abutted against the bottom plate 24 and the plug-in plate 21, the plug-in plate 21 is provided with the second contact 211, the backrest wiring harness 7 is used to pass through the bottom plate 24 to connect with the plug-in plate 21, when the headrest rod 3 drives the first plug-in 1 to move toward the seat base, the plug-in plate 21 moves toward the bottom plate 24 to compress the elastic member 23.

[0036] Specifically, the elastic member 23 can be a compression spring, and the bottom plate 24 is provided with a threading hole penetrating along the thickness direction thereof, and one end of the backrest harness 7 passes upward through the threading hole and the elastic member 23 to be connected to the plug plate 21. The seat base can be used to support the buttocks of a human body, and the lower end of the seat back 6 is rotatably connected to the rear end of the seat base.

[0037] The seat headrest 5 has different support gears. When the support height of the seat headrest 5 needs to be lowered, the headrest rod 3 drives the first plug-in 1 to move downward, and the first plug-in 1 drives the second plug-in 2 to move downward and compress the elastic member 23. The elastic member 23 has a tendency to recover deformation upward to press the plug-in plate 21 upward against the first plug-in 1 to ensure the stable connection between the headrest harness 4 and the backrest harness 7 without disconnection. When the support height of the seat headrest 5 needs to be increased, the headrest rod 3 drives the first plug-in 1 to move upward, and the elastic member 23 recovers deformation upward to drive the plug-in plate 21 to move upward, so that the first contact 11 on the first plug-in 1 can maintain good contact with the second contact 211 on the plug-in plate 21.

[0038] like Figure 2 , 5 6, optionally, the second plug-in 2 also includes a cylinder 22, and the cylinder 22 is used to be installed on the seat back 6. The two ends of the cylinder 22 are respectively provided with a first opening and a second opening. The plug-in plate 21 is movably set in the cylinder 22, and the second contact 211 is provided at a position corresponding to the first opening on the plug-in plate 21. The first plug-in 1 is used to extend into the cylinder 22 through the first opening so that the first contact 11 is connected with the second contact 211, and the bottom plate 24 is installed in cooperation with the second opening.

[0039] Specifically, the cylinder 22 may be a cylindrical structure with a hollow interior, the plug plate 21 may be a circular plate, the outer peripheral wall shape of the plug plate 21 matches the inner peripheral wall shape of the cylinder 22, a first opening is provided at the upper end of the cylinder 22, a second contact 211 is provided on the upper surface of the plug plate 21, and the first plug 1 can extend downward into the cylinder 22 through the first opening. The size of the first opening at the upper end of the cylinder 22 is larger than the cross-sectional size of the first plug 1, and the first plug 1 can pass through the first opening at the upper end of the cylinder downward. A second opening is provided at the lower end of the cylinder 22, and the size of the second opening matches the size of the bottom plate 24.

[0040] In this embodiment, the height of the seat headrest 5 is adjustable. When the seat headrest 5 moves up and down, the headrest rod will drive the first plug-in 1 to move up and down, and the plug plate 21 can slide up and down relative to the cylinder 22, so that the first contact 11 of the first plug-in 1 can always be connected with the second contact 211 of the second plug-in 2, ensuring the reliability of the wiring harness connection.

[0041] like Figure 2 As shown, optionally, the cross-sectional dimension of the first opening is smaller than the cross-sectional dimension of the plug plate 21, and the plug plate 21 is used to abut against one end of the cylinder 22 having the first opening; and / or, a concave cavity is provided on the plug plate 21, and the second contact 211 is provided in the concave cavity.

[0042] In this embodiment, the cross-sectional dimension of the first opening at the upper end of the cylinder 22 is smaller than the cross-sectional dimension of the plug plate 21. When the seat headrest 5 is in the highest support position in normal use, the elastic member 23 may have a slight compression deformation, and the elastic member 23 can apply a certain pre-pressure to the plug plate 21 to ensure that the second contact 211 on the plug plate 21 is in good contact with the first contact 11 on the first plug 1. When the seat headrest 5 drops to the lowest support position in normal use, the compression amount of the elastic member 23 is close to half. When the seat headrest 5 drops to the lowest point in an abnormal use state, the elastic member 23 is almost compressed to the limit.

[0043] The plug board 21 is provided with an upwardly open cavity, the shape of which matches the shape of the first plug-in 1. The first plug-in 1 can be inserted into the cylinder 22 from the upper part of the cylinder 22. The first plug-in 1 is matched with the cavity on the plug board 21 to achieve plug-in connection. At this time, the first contact 11 and the second contact 211 are just connected.

[0044] Optionally, a guide groove 221 extending in the axial direction is provided on the circumferential side wall of the cylinder 22 , and a guide block 212 matching the guide groove 221 is provided on the insert plate 21 , and the guide block 212 is used to be inserted into the guide groove 221 and slide along the guide groove 221 .

[0045] Specifically, the guide groove 221 may be in the shape of a vertically extending long strip, one or more guide grooves 221 may be provided, the guide block 212 and the plug board 21 are integrally formed, and the guide block 212 and the guide groove 221 are provided correspondingly.

[0046] In this embodiment, the relative sliding between the guide block 212 and the guide groove 221 can be utilized to limit the vertical movement of the plug board 21 to prevent the plug board 21 from shaking and becoming unstable during the movement.

[0047] like Figure 2 , 6 As shown, optionally, the bottom plate 24 is threadedly connected to the cylinder 22;

[0048] Alternatively, a protrusion 241 is provided on the outer side of the bottom plate 24, and a groove matching the protrusion 241 is provided on the inner side of the cylinder 22, and the bottom plate 24 and the cylinder 22 are connected by the protrusion 241 and the groove;

[0049] Alternatively, the first plug-in 1 is threadedly connected to the headrest rod 3;

[0050] Alternatively, the first plug-in unit 1 is snap-fitted to the headrest rod 3 .

[0051] Specifically, an internal thread can be provided on the inner side of the cylinder 22, and the bottom plate 24 can extend upward to form an extension section, and an external thread is provided on the extension section, and the extension section is inserted into the cylinder 22 to achieve threaded connection. Alternatively, multiple protrusions 241, such as three, are provided at intervals on the outer side of the bottom plate 24, and multiple grooves are provided at intervals on the inner side of the cylinder 22, and the multiple protrusions 241 are used to engage with the multiple grooves to achieve the coordinated installation of the bottom plate 24 and the cylinder 22. Of course, the situation of providing grooves on the bottom plate 24 and providing protrusions on the cylinder 22 is similar to the above, and will not be repeated. The above-mentioned screw connection and clamping assembly method is adopted to achieve a detachable connection between the bottom plate 24 and the cylinder 22, and the installation method is simple and easy to disassemble and assemble.

[0052] The first plug-in 1 can be an inverted T-shaped structure, including a vertical part and a transverse part. The lower surface of the transverse part is provided with a first contact 11. The vertical part is connected to the headrest rod 3 by a thread, or corresponding slots and protrusions are provided on the vertical part and the headrest rod 3 to achieve the clamping fixation of the two. The connection method is simple. One end of the headrest wiring harness 4 is inserted into the vertical part, and the other end passes through the headrest rod 3 upward to be connected to the audio equipment 10.

[0053] Optionally, the second plug-in 2 and the first plug-in 1 have a magnetic surface on one side facing each other, and the first plug-in 1 and the plug-in board 21 are configured to be attracted to each other via the corresponding magnetic surfaces.

[0054] In this embodiment, the side wall of the cavity of the plug board 21 is provided with a magnetic surface, the bottom of the cavity is provided with a second contact, the lower circumferential side wall of the first plug-in 1 can be provided with a magnetic surface, and the lower end surface of the first plug-in 1 can be provided with a first contact.

[0055] When this magnetic attraction structure is adopted, there is no need to set the elastic member 23. The plug plate 21 will slide to the bottom of the cylinder 22 under the action of gravity and contact the bottom plate 24. Before the seat headrest 5 needs to be raised or lowered, the headrest rod 3 can first drive the first plug 1 to descend to the lowest point. The first plug 1 and the plug plate 21 are adsorbed together through the magnetic attraction surface, and the first contact point 11 is connected with the second contact point 211. At this time, the seat headrest 5 and the headrest rod 3 can be raised or lowered to a suitable height.

[0056] Another embodiment of the utility model provides a car seat, comprising a headrest rod 3, a seat back 6 and the above-mentioned seat headrest connection structure, wherein a first plug-in 1 of the seat headrest connection structure is installed on the headrest rod 3, and a second plug-in 2 of the seat headrest connection structure is installed on the seat back 6. The advantages of the car seat compared with the prior art are the same as those of the above-mentioned seat headrest connection structure, and will not be repeated.

[0057] like Figure 7As shown, optionally, the car seat also includes a clip 8 and a headrest tube 9, the headrest tube 9 is installed on the seat back 6, the headrest rod 3 axially passes through the headrest tube 9, when the headrest rod 3 drives the seat headrest 5 to move into place, the clip 8 is used to lock the headrest rod 3 and the headrest tube 9 relative to each other.

[0058] Specifically, the headrest conduit 9 is vertically extended and provided with a through hole inside. A plurality of slots are vertically spaced on the side wall of the headrest rod 3. The clamping member 8 is connected to the headrest conduit 9. The clamping member 8 may include a clamping column, a spring and a clamping switch. One end of the clamping column passes through the spring to abut against the slot. The other end of the clamping column is connected to the clamping switch. Pulling the clamping switch outward can make the headrest exit the slot and compress the spring. At this time, the headrest rod 3 can move up and down relative to the headrest conduit 9 to adjust the height of the seat headrest. When the height of the seat headrest is adjusted to the right position, the clamping switch is released, and the spring recovers its deformation to drive the clamping column to insert into the corresponding slot to complete the locking after the height is adjusted to the right position. The upper end of the headrest conduit 9 is covered with a waterproof and dustproof structure at the gap between the headrest rod 3 and the upper end.

[0059] Another embodiment of the present invention provides a car, comprising the above-mentioned car seat. The advantages of the car compared with the prior art are the same as those of the above-mentioned car seat, and will not be described again.

[0060] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A seat headrest connection structure, characterized in that: The invention comprises a first plug-in (1) and a second plug-in (2), wherein the first plug-in (1) is used to be installed on one end of a headrest rod (3) extending into a seat back (6) and connected to a headrest wiring harness (4), the first plug-in (1) is provided with a first contact (11), the second plug-in (2) is used to be installed on the seat back (6) and connected to a backrest wiring harness (7), the second plug-in (2) is provided with a second contact (211), the second contact (211) is used to dock with the first contact (11), so that the headrest wiring harness (4) and the backrest wiring harness (7) are connected. 7) connection; the second plug-in (2) comprises a plug-in plate (21) and a cylinder (22), the cylinder (22) being used for being installed on the seat back (6), one end of the cylinder (22) being provided with a first opening, the plug-in plate (21) being movably arranged in the cylinder (22), and the second contact (211) being provided at a position on the plug-in plate (21) corresponding to the first opening, the first plug-in (1) being used for extending into the cylinder (22) through the first opening so that the first contact (11) and the second contact (211) are butted against each other.

2. The seat headrest connection structure according to claim 1, characterized in that: The second plug-in (2) comprises an elastic member (23) and a base plate (24), two ends of the elastic member (23) respectively abut against the base plate (24) and the plug-in plate (21), the backrest harness (7) is used to pass through the base plate (24) to be connected with the plug-in plate (21), and when the headrest rod (3) drives the first plug-in (1) to move toward the seat base, the plug-in plate (21) moves toward the base plate (24) to compress the elastic member (23).

3. The seat headrest connection structure according to claim 2, characterized in that: The cylinder (22) is provided with a second opening at one end opposite to the first opening, and the bottom plate (24) is mounted in cooperation with the second opening.

4. The seat headrest connection structure according to claim 3, characterized in that: The cross-sectional dimension of the first opening is smaller than the cross-sectional dimension of the plug plate (21), and the plug plate (21) is used to abut against one end of the cylinder (22) provided with the first opening; and / or, a concave cavity is provided on the plug plate (21), and the second contact (211) is provided in the concave cavity.

5. The seat headrest connection structure according to claim 3, characterized in that: A guide groove (221) extending in the axial direction is provided on the circumferential side wall of the cylinder (22), and a guide block (212) matching the guide groove (221) is provided on the circumferential side wall of the insert plate (21), and the guide block (212) is used to be inserted into the guide groove (221) and slide along the guide groove (221).

6. The seat headrest connection structure according to claim 5, characterized in that: The bottom plate (24) is threadedly connected to the cylinder (22); Alternatively, a protrusion (241) is provided on the outer side of the bottom plate (24), and a groove matching the protrusion (241) is provided on the inner side of the cylinder (22), and the bottom plate (24) and the cylinder (22) are clamped together via the protrusion (241) and the groove; Alternatively, the first plug-in unit (1) is threadedly connected to the headrest rod (3); Alternatively, the first plug-in unit (1) is snap-connected with the headrest rod (3).

7. The seat headrest connection structure according to claim 1, characterized in that: The second plug-in (2) and the first plug-in (1) have magnetic surfaces on their sides facing each other, and the first plug-in (1) and the second plug-in (2) are used to attract each other through the corresponding magnetic surfaces.

8. A car seat, characterized in that: It comprises a headrest rod (3), a seat back (6) and a seat headrest connecting structure as described in any one of claims 1 to 7, wherein a first plug-in (1) of the seat headrest connecting structure is installed on the headrest rod (3), and a second plug-in (2) of the seat headrest connecting structure is installed on the seat back (6).

9. The vehicle seat according to claim 8, characterized in that: It also includes a clamping member (8) and a headrest conduit (9), wherein the headrest conduit (9) is mounted on the seat back (6), and the headrest rod (3) passes through the headrest conduit (9) axially. When the headrest rod (3) drives the seat headrest (5) to move into place, the clamping member (8) is used to relatively lock the headrest rod (3) and the headrest conduit (9).

10. An automobile, characterized in that: The invention comprises a car seat as claimed in any one of claims 8 to 9.

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