Seat leaning device and vehicle

Abstract

The invention provides a seating and leaning device and a vehicle, the seating and leaning device comprises a backrest comprising a frame body; the first mounting structure and the second mounting structure are both fixed to the frame body, the first mounting structure and the second mounting structure are oppositely arranged, a fixing structure is arranged on the first mounting structure, and the second mounting structure is provided with a containing cavity with an opening facing the first mounting structure; the headrest comprises a headrest body and an inserting rod arranged on the headrest body, a first electric connecting piece is arranged at the end of the inserting rod, and the fixing structure is used for fixing the relative position of the inserting rod and the first mounting structure; the connecting seat is arranged in the containing cavity in a sliding mode, a second electric connecting piece used for being connected with the first electric connecting piece is arranged on the connecting seat, and a locking piece is arranged on the connecting seat; an unlocking piece is arranged on the inner wall of the containing cavity. According to the structure, under the condition that electrification and signal transmission of the headrest are achieved, the height of the headrest can be adjusted relative to the backrest, and the headrest can be detached from the backrest.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, in particular to a seat support device and a vehicle. Background Art

[0002] With the rapid development of new energy vehicles, in addition to the basic driving functions of the vehicle, users have higher and higher demands for in-car entertainment. Take the seat headrest in the passenger compartment as an example. It not only has the basic function of supporting the head, but some vehicles also have speakers installed in the headrest, so that the headrest also has the function of immersive music playback, that is, the music headrest.

[0003] Since the music headrest needs to supply power to the speaker and transmit signals, it is necessary to lead the connection wire from the music headrest to the vehicle's electronic control unit. In order to prevent the connection wire from being pulled or even damaged, the music headrest is fixed relative to the backrest, which means that the user cannot adjust the height of the music headrest by himself, making the music headrest less adaptable to passengers of different heights. If you want to adjust the height of the headrest, you need to use professional tools to disassemble and adjust it in a 4S store, which gives a poor user experience. Summary of the invention

[0004] In view of this, the present invention provides a seat support device and a vehicle to solve the problem in the prior art that the vehicle music headrest cannot be adjusted in height and cannot be disassembled, resulting in a poor user experience.

[0005] In the first aspect, the present invention provides a seat device, comprising: a backrest, including a frame; a first mounting structure and a second mounting structure, both of which are fixed on the frame, the first mounting structure and the second mounting structure are arranged opposite to each other, the first mounting structure is provided with a fixing structure, and the second mounting structure has a accommodating cavity with an opening facing the first mounting structure; a headrest, comprising a pillow body and an insertion rod arranged on the pillow body, the end of the insertion rod is provided with a first electrical connector, after the insertion rod passes through the first mounting structure, it is inserted into the accommodating cavity, and the fixing structure is used to fix the relative position of the insertion rod and the first mounting structure; a connecting seat, which is slidably arranged in the accommodating cavity, the connecting seat is provided with a second electrical connector for connecting to the first electrical connector, and the connecting seat is provided with a locking member, the locking member has a locking position that cooperates with the insertion rod, and an unlocking position that is separated from the insertion rod.

[0006] Optionally, an unlocking member is provided on the inner wall of the accommodating cavity, and when the insertion rod drives the connecting seat to move to a preset position, the unlocking member cooperates with the locking member and drives the locking member to move from the locked position to the unlocked position.

[0007] Optionally, a first recess is provided on the insertion rod, and the locking member includes a first insert piece. When the first insert piece is in the locking position, the first insert piece is inserted into the first recess, and when the first insert piece is in the unlocking position, the first insert piece is withdrawn from the first recess.

[0008] Optionally, a first elastic reset member is provided on the connecting seat, the first elastic reset member is connected between the first plug-in piece and the connecting seat, and provides a reset force to the first plug-in piece toward the locked position. When the first plug-in piece cooperates with the unlocking member, the unlocking member pushes the first plug-in piece to move toward the unlocking position.

[0009] Optionally, part of the first plug piece protrudes from the connecting seat and forms a first button, and the unlocking member includes a pushing inclined surface. When the insert rod drives the connecting seat to move to a preset position, the pushing inclined surface pushes the first button to drive the first plug piece to move to the unlocking position.

[0010] Optionally, the second mounting structure includes a base and a cover body covered on the base, the bottom of the base is provided with a first through hole for passing the wiring harness of the second electrical connector, the cover body is provided with a second through hole for inserting the plug, the connecting seat is slidably disposed in the base, and the space in the base and the cover body form a accommodating cavity.

[0011] Optionally, the unlocking piece is arranged on a surface of the cover body facing the base.

[0012] Optionally, a convex edge is provided on the outer side wall of the base, and a positioning structure and a connecting structure are provided between the convex edge and the cover body.

[0013] Optionally, the positioning structure includes a positioning column arranged on the flange, and a positioning hole arranged on the cover body, and the positioning column is used to pass through the positioning hole; and / or, a boss is arranged on the flange, a connecting hole is arranged on the end face of the boss, a third through hole is arranged on the cover body, and the connecting structure includes a connecting screw, which passes through the third through hole and is connected to the connecting hole.

[0014] Optionally, the edge of the cover body is provided with a flange bent toward the base, and the flange cover is provided on the outer side of the convex edge.

[0015] Optionally, the first mounting structure includes a tube body and a connecting frame, the tube body is arranged on a side of the cover body away from the base, and the tube body is coaxially arranged with the second through hole, and the connecting frame is used to connect the tube body to the cover body.

[0016] Optionally, the connecting frame includes a sleeve and a connecting plate, the sleeve is sleeved and fixed outside the tube body, the sleeve is connected to the frame body, and the connecting plate includes a first plate segment and a second plate segment, the first plate segment is connected to the sleeve, and the second plate segment is connected to the cover body.

[0017] Optionally, a positioning convex edge is provided on the tube body, and the positioning convex edge is used to abut against the end of the sleeve facing away from the cover body. An elastic buckle is also provided on the tube body, and the elastic buckle is spaced apart from the positioning convex edge and is used to abut against the end of the sleeve facing the cover body.

[0018] Optionally, one of the positioning protrusion and the end of the sleeve facing away from the cover body is provided with a rotation-stopping protrusion, and the other is provided with a rotation-stopping recess, and the rotation-stopping protrusion is used to cooperate with the rotation-stopping recess.

[0019] Optionally, the fixed structure includes a second plug-in piece and a second elastic reset member, a plurality of second recesses are arranged at intervals on the insertion rod, the second plug-in piece is used to be inserted into the second recesses, the second plug-in piece is movably arranged in the first mounting structure, and the second elastic reset member is used to apply a reset force toward the insertion rod to the second plug-in piece, and a portion of the second plug-in piece protrudes from the second mounting structure and forms a second button.

[0020] In a second aspect, the present invention provides a vehicle, comprising the above-mentioned seat support device.

[0021] Beneficial effects:

[0022] By utilizing the technical solution of the present invention, after the headrest and the backrest are assembled, the end of the insertion rod is connected to the connecting seat through a locking piece, and the first electrical connector and the second electrical connector are connected together, thereby realizing the transmission of power or signals. When the height of the headrest needs to be adjusted, the pillow body is moved relative to the backrest. During the movement, the end of the insertion rod drives the connecting seat to move synchronously, and the connecting seat slides in the second mounting structure. The locking piece prevents the two from separating, that is, the pillow body is continuously powered on and signals are transmitted. When the pillow body is moved into place, the relative position of the insertion rod and the first mounting structure is fixed by the positioning structure, thereby completing the height adjustment of the pillow body. With the above structure, when the headrest is powered on and signals are transmitted, the headrest can be adjusted in height relative to the backrest. Therefore, the technical solution of the present invention solves the problem in the prior art that the vehicle music headrest cannot be adjusted in height and cannot be disassembled, resulting in a poor user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 The structural schematic diagram of the seat support device of the present invention is shown (the insertion rod is inserted to the bottom);

[0025] Figure 2 Shows Figure 1 An internal schematic diagram of a second mounting structure of the middle seat support device;

[0026] Figure 3 Shows Figure 2 A schematic diagram of the structure at the middle mounting seat;

[0027] Figure 4 Shows Figure 3 A schematic diagram of the cooperation between the first elastic reset member and the locking member;

[0028] Figure 5 Shows Figure 1 An internal schematic diagram of a first mounting structure and a positioning structure of the middle seat support device;

[0029] Figure 6 Shows Figure 5 A schematic diagram of the cooperation between the second elastic reset member and the second inserting piece;

[0030] Figure 7 Shows Figure 2 Assembly diagram of the middle base and the cover;

[0031] Figure 8 Shows Figure 1 A schematic diagram of the assembly of the first mounting structure and the second mounting structure of the middle seat support device;

[0032] Fig. 9 Shows Figure 8 A schematic diagram of another perspective in the figure;

[0033] Fig.10 Shows Figure 1 Schematic diagram of the insertion rod of the middle seat device being pulled up to the top;

[0034] Fig.11 Shows Fig.10 An internal schematic diagram of the second mounting structure of the middle seat support device.

[0035] Description of reference numerals:

[0036] 10. Frame;

[0037] 20. First mounting structure; 21. Tube body; 211. Positioning protrusion; 2111. Anti-rotation protrusion; 212. Elastic buckle; 22. Connecting frame; 221. Sleeve; 2211. Anti-rotation depression; 222. Connecting plate; 2221. First plate segment; 2222. Second plate segment;

[0038] 30. Second mounting structure; 31. Accommodating cavity; 311. Unlocking member; 32. Base; 321. First through hole; 322. Convex edge; 3221. Boss; 3222. Connecting hole; 33. Cover; 331. Second through hole; 332. Third through hole; 333. Flanged edge;

[0039] 40. fixing structure; 41. second insert; 42. second elastic reset member; 43. second button;

[0040] 50. headrest; 51. pillow body; 52. insertion rod; 521. first recess; 522. second recess; 53. first electrical connector;

[0041] 60. Connecting seat; 61. Second electrical connector; 62. Locking member; 621. First button; 63. First elastic reset member;

[0042] 70. Positioning structure; 71. Positioning column; 72. Positioning hole;

[0043] 80. Connection structure. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0045] like Figures 1 to 3 ,as well as Fig.10 and Fig.11 As shown, the embodiment of the seat device according to the present application includes a backrest, a first mounting structure 20, a second mounting structure 30, a headrest 50 and a connecting seat 60. The backrest includes a frame 10. The first mounting structure 20 and the second mounting structure 30 are both fixed on the frame 10, and the first mounting structure 20 and the second mounting structure 30 are arranged opposite to each other. The first mounting structure 20 is provided with a fixing structure 40, and the second mounting structure 30 has a receiving cavity 31 opening toward the first mounting structure 20. The headrest 50 includes a pillow body 51 and an insertion rod 52 arranged on the pillow body 51, and the end of the insertion rod 52 is provided with a first electrical connector 53. After the insertion rod 52 passes through the first mounting structure 20, it is inserted into the receiving cavity 31, and the fixing structure 40 is used to fix the relative position of the insertion rod 52 and the first mounting structure 20. The connecting seat 60 is slidably arranged in the receiving cavity 31, and the connecting seat 60 is provided with a second electrical connector 61 for connecting with the first electrical connector 53. A locking member 62 is provided on the connecting seat 60 , and the locking member 62 has a locking position matched with the insertion rod 52 , and an unlocking position separated from the insertion rod 52 .

[0046] By using the technical solution of this embodiment, after the headrest 50 and the backrest are assembled, the end of the plug rod 52 is connected to the connecting seat 60 through the locking member 62, and the first electrical connector 53 and the second electrical connector 61 are connected together, thereby realizing the transmission of power or signal. When the height of the headrest 50 needs to be adjusted, the pillow body 51 is moved relative to the backrest. During the movement, the end of the plug rod 52 drives the connecting seat 60 to move synchronously, and the connecting seat 60 slides in the second mounting structure 30. The locking member 62 prevents the two from separating, that is, the pillow body 51 is continuously powered and the signal is transmitted. When the pillow body 51 moves into place, the relative position of the plug rod 52 and the first mounting structure 20 is fixed by the fixing structure 40, thereby completing the height adjustment of the pillow body 51. In the above structure, when the headrest 50 is powered and the signal is transmitted, the headrest 50 can adjust the height relative to the backrest. Therefore, the technical solution of this embodiment solves the problem that the vehicle music headrest in the prior art cannot adjust the height and cannot be disassembled, and the user experience is poor.

[0047] Furthermore, in the technical solution of this embodiment, an unlocking member 311 is provided on the inner wall of the accommodating cavity 31. When the insertion rod 52 drives the connecting seat 60 to move to a preset position, the unlocking member 311 cooperates with the locking member 62 and drives the unlocking member 311 to move from the locked position to the unlocked position.

[0048] By setting the unlocking member 311, when the headrest 50 needs to be removed, the pillow body 51 is moved to a preset position, at which time the unlocking member 311 in the accommodating cavity 31 drives the locking member 62 to be in the unlocking position, and at this time the end of the insertion rod 52 can be separated from the connecting seat 60. The pillow body 51 is further pulled up to separate the first electrical connector 53 and the second electrical connector 61, so that the insertion rod 52 is pulled out from the second mounting structure 30 and the first mounting structure 20 in turn, and the headrest 50 is removed from the backrest.

[0049] The above structure can realize that the headrest 50 can be removed from the backrest when the headrest 50 is powered and signal transmission is achieved, thereby further improving the user experience.

[0050] First, Figure 1 As shown, Figure 1 The upper end of the frame 10 of the backrest is shown, and the upper end of the frame 10 is generally in a "U"-shaped structure with the opening facing downward. Those skilled in the art will understand that Figure 1 The lower side of the frame 10 shown has other skeleton structures, and fillers, woven fabrics, etc. can be wrapped outside the frame 10 to form a backrest. Since the technical solution of the embodiment mainly involves the upper position of the frame 10, other structures of the frame 10, as well as fillers, woven fabrics, etc., are not shown in the drawings, but this does not affect the understanding of the technical solution of this embodiment by those skilled in the art.

[0051] from Figure 1 It can also be seen that the frame 10 is also provided with a first mounting structure 20 and a second mounting structure 30, the main function of which is to install the headrest 50. The first mounting structure 20 and the second mounting structure 30 are arranged opposite to each other, and specifically, after the seat support device is installed in the vehicle, the first mounting structure 20 is located above the second mounting structure 30, and the opening of the accommodating cavity 31 of the second mounting structure 30 faces the first mounting structure 20.

[0052] Furthermore, the first mounting structure 20 and the second mounting structure 30 are both embedded in the backrest, that is, the user cannot see the first mounting structure 20 and the second mounting structure 30 from the appearance of the seat support device. An installation opening is formed at one end of the first mounting structure 20 away from the second mounting structure 30, and the installation opening is located at the top of the backrest, and the installation opening is used to install the headrest 50.

[0053] from Fig.10 It can be seen that the headrest 50 includes a pillow body 51 and an insertion rod 52. The pillow body 51 is used for leaning on the head, and the insertion rod 52 is arranged at the bottom of the pillow body 51. During assembly, the insertion rod 52 is inserted into the first mounting structure 20 from the above-mentioned mounting opening, and then the insertion rod 52 continues to descend and is inserted into the second mounting structure 30 from the opening of the accommodating cavity 31.

[0054] from Figure 3 It can be seen that a connection seat 60 is provided in the accommodating cavity 31 of the second mounting structure 30, a second electrical connector 61 is provided on the connection seat 60, and a first electrical connector 53 is provided at the end of the plug rod 52. The first electrical connector 53 is connected to the electronic components or devices in the pillow body 51, and the second electrical connector 61 can be connected to the electronic control unit in the vehicle. When the end of the plug rod 52 and the connection seat 60 are connected together, the first electrical connector 53 and the second electrical connector 61 can be connected together to transmit power and / or signals, so that the pillow body 51 has more abundant functions. For example, the pillow body 51 can have functions such as playing music, massaging, heating, etc.

[0055] Optionally, the headrest 50 in this embodiment is a music headrest.

[0056] Optionally, the first electrical connector 53 and the second electrical connector 61 may be structures such as plug jacks, male and female terminals, etc., as long as they can achieve connectivity and transmission of power and / or signals.

[0057] from Figure 3 It can also be seen that a locking member 62 is provided on the connection seat 60, and the locking member 62 is used to fix the end of the insertion rod 52 and the connection seat 60 together. And the locking member 62 has a locking position and an unlocking position on the connection seat 60.

[0058] Specifically, when the locking piece 62 is in the locking position, the end of the insertion rod 52 can be fixed together with the connecting seat 60. On the one hand, it ensures that the connection between the first electrical connector 53 and the second electrical connector 61 is stable and will not be detached. On the other hand, when the user moves the pillow body 51, the movement of the insertion rod 52 can drive the connecting seat 60 to move synchronously, that is, the connecting seat 60 slides in the accommodating cavity 31 of the second mounting structure 30.

[0059] Furthermore, when the locking member 62 is in the unlocked position, the locking member 62 is separated from the insertion rod 52, that is, the insertion rod 52 can be removed from the connection seat 60. The user can pull the pillow body 51 outward with a little force to separate the first electrical connector 53 and the second electrical connector 61, and the insertion rod 52 and the connection seat 60 can be completely separated.

[0060] like Figure 2 and Fig.11 As shown, an unlocking member 311 is provided on the inner wall of the accommodating cavity 31, and the unlocking member 311 is used to drive the locking member 62 to move from the locked position to the unlocked position. When the pillow body 51 moves and drives the insertion rod 52 to move, and the insertion rod 52 drives the connecting seat 60 to move to the preset position, the unlocking member 311 cooperates with the locking member 62 and drives the locking member 62 to move from the locked position to the unlocked position.

[0061] The “preset position” in this embodiment refers to the position of the connecting seat 60 in the accommodating cavity 31 when the headrest 50 needs to be removed from the backrest, the pillow body 51 is moved upward, and the insertion rod 52 is about to be disengaged from the second mounting structure 30.

[0062] like Fig.11 As shown, when the connecting seat 60 moves to the preset position, the unlocking member 311 cooperates with the locking member 62, so that the locking member 62 moves from the locked position to the unlocked position, and the insertion rod 52 can be separated from the connecting seat 60. The user continues to move the pillow body 51 upward, and the insertion rod 52 can be disengaged from the second mounting structure 30, and then disengaged from the first mounting structure 20, thereby achieving complete separation of the headrest 50 from the backrest.

[0063] Furthermore, when the user does not disassemble the headrest 50 and adjusts the height of the headrest 50, the user moves the pillow body 51 up and down, and the insertion rod 52 moves, driving the connection seat 60 to move below the unlocking member 311, that is, the unlocking member 311 does not cooperate with the locking member 62, and the locking member 62 is always in the locked position. Therefore, when the user adjusts the height of the headrest 50, the first electrical connector 53 and the second electrical connector 61 can always be connected stably.

[0064] Based on the above structure, the height adjustment and removal of the headrest 50 in this embodiment are described below.

[0065] 1.Headrest height adjustment

[0066] The user adjusts the height of the pillow body 51 according to the height requirements of the occupant. After the adjustment is completed, the relative positions of the insertion rod 52 and the frame body 10 are fixed through the fixing structure 40 on the first mounting structure 20, that is, the position of the pillow body 51 relative to the backrest is fixed.

[0067] During the adjustment of the pillow body 51, the end of the insertion rod 52 drives the connection seat 60 to slide in the accommodating cavity 31 of the second mounting structure 30, and the connection seat 60 moves below the unlocking member 311. Therefore, the locking member 62 on the connection seat 60 is always in the locked position, so that the insertion rod 52 is connected to the connection seat 60, and the connection between the first electrical connector 53 and the second electrical connector 61 is stable.

[0068] 2. Headrest Removal

[0069] When the headrest 50 needs to be removed from the backrest, the user moves the pillow body 51 upward. When the insertion rod 52 is to be removed from the accommodating cavity 31 of the second mounting structure 30, the connecting seat 60 moves to the unlocking member 311, and the unlocking member 311 drives the locking member 62 to move to the unlocking position. At this time, the user can slightly apply force upward to disengage the first electrical connector 53 and the second electrical connector 61. The user continues to move the pillow body 51 upward, so that the insertion rod 52 can be removed from the second mounting structure 30, and then from the first mounting structure 20, thereby achieving complete separation of the headrest 50 from the backrest.

[0070] It can be seen that the technical solution of this embodiment can realize electronic functions such as playing music in the pillow body 51, while the height of the headrest 50 can be adjusted relative to the backrest, and the headrest 50 can be disassembled relative to the backrest without using professional tools.

[0071] like Figure 3 and Fig.11 As shown, in the technical solution of this embodiment, a first recess 521 is provided on the insertion rod 52, and the locking member 62 includes a first inserting piece. When the first inserting piece is in the locking position, the first inserting piece is inserted into the first recess 521, and when the first inserting piece is in the unlocking position, the first inserting piece is withdrawn from the first recess 521.

[0072] Specifically, the first recess 521 is disposed on the side wall of the end of the insertion rod 52. The first insertion piece is movably disposed on the connection seat 60, and the first insertion piece has the above-mentioned locking position and unlocking position.

[0073] When the first plug is in the locking position, the first plug is inserted into the first recess 521 , so the plug rod 52 and the connection seat 60 are fixed together, and at this time the first electrical connector 53 and the second electrical connector 61 are stably connected together.

[0074] Furthermore, when the pillow body 51 is moved upward so that the insertion rod 52 drives the connecting seat 60 to move to a preset position, the unlocking member 311 drives the first plug piece to move to the unlocking position. At this time, the first plug piece is disengaged from the first recess 521. The user continues to move the pillow body 51 upward to enable the insertion rod 52 to be disengaged from the second mounting structure 30, thereby achieving complete separation of the insertion rod 52 and the connecting seat 60.

[0075] like Figure 4 As shown, in the technical solution of this embodiment, a first elastic reset member 63 is provided on the connecting seat 60, and the first elastic reset member 63 is connected between the first plug-in piece and the connecting seat 60, and provides a reset force toward the locking position for the first plug-in piece. When the first plug-in piece cooperates with the unlocking member 311, the unlocking member 311 pushes the first plug-in piece to move toward the unlocking position.

[0076] Specifically, the function of the first elastic reset member 63 is that when the first plug is not subjected to external force, its elastic force keeps the first plug in the locked position at all times, that is, ensuring that the plug rod 52 will not detach from the connecting seat 60, and the first electrical connector 53 and the second electrical connector 61 are stably connected together.

[0077] Furthermore, when the pillow body 51 is fixed on the backrest, or the user adjusts the height of the pillow body 51, the first inserting piece does not cooperate with the unlocking piece 311, and the elastic force of the first elastic reset piece 63 keeps the first inserting piece in the locked position.

[0078] Furthermore, when the user needs to remove the headrest 50 from the backrest, the pillow body 51 is moved upward so that the connecting seat 60 moves to the unlocking member 311. At this time, the unlocking member 311 pushes the first plug piece to move to the unlocking position, so that the first plug piece withdraws from the first recess 521. And the first elastic reset member 63 is compressed.

[0079] like Figure 3 , Figure 4 and Fig.11 As shown, part of the first insert protrudes from the connection seat 60 and forms a first button 621. The unlocking member 311 includes a push-up slope, and when the insertion rod 52 drives the connection seat 60 to move to the preset position, the push-up slope pushes the first button 621 to drive the first insert to move to the unlocking position.

[0080] Specifically, part of the first insert protrudes from the side of the connection seat 60 to form a first button 621. The first button 621 is spaced a certain distance from the side wall of the accommodating cavity 31, that is, the end of the first button 621 does not contact the side wall of the accommodating cavity 31.

[0081] Furthermore, when the pillow body 51 is fixed on the backrest, or the user adjusts the height of the pillow body 51, the first plug piece does not cooperate with the unlocking member 311, and the elastic force of the first elastic reset member 63 keeps the first plug piece in the locked position. At this time, the end of the first button 621 protrudes from the side of the connecting seat 60.

[0082] Furthermore, when the user needs to remove the headrest 50 from the backrest, the pillow body 51 is moved upward so that the connection seat 60 moves to the push-up inclined surface, and the push-up inclined surface pushes the first button 621 to protrude from the connection seat 60. Therefore, the first plug is pushed up and moved to the unlocking position, so that the first plug is withdrawn from the first recess 521.

[0083] from Fig.11 It can be seen that the first button 621 has a matching inclined surface facing the push-up inclined surface. When the connecting seat 60 moves to the preset position, the push-up inclined surface contacts and cooperates with the matching inclined surface, thereby realizing the driving of the first plug.

[0084] Those skilled in the art can understand that after the push-up inclined surface contacts and matches with the matching inclined surface, the push-up inclined surface can exert a horizontal force component on the first insert and the connecting seat 60 as a whole under the elastic force of the first elastic reset member 63. The horizontal force component can keep the connecting seat 60 in the accommodating cavity 31, that is, at the push-up inclined surface.

[0085] Combination Fig.11 When the insertion rod 52 is removed, the connection seat 60 can be kept in the accommodating cavity 31, and the push-up inclined surface can keep the first insertion piece in the unlocked state.

[0086] The above structure facilitates the installation of the headrest 50 after it is disassembled. Specifically, when installing the headrest 50, the insertion rod 52 is first passed through the first mounting structure 20, and then the end of the insertion rod 52 enters the accommodating cavity 31 of the second mounting structure 30 through the opening. The user slightly applies downward force to the pillow body 51 so that the first electrical connector 53 and the second electrical connector 61 are reconnected together, and then the user presses the pillow body 51 downward again so that the downward force overcomes the above-mentioned horizontal force component. At this time, the connecting seat 60 moves downward, and the push-up slope also disengages from the first button 621. The first insert moves to the locking position under the action of the elastic force and is inserted into the first recess 521, thereby achieving re-locking between the connecting seat 60 and the insertion rod 52.

[0087] When the headrest 50 needs to be disassembled, just refer to the above-mentioned content 2.

[0088] like Figure 2 , Figure 7 ,Right now Fig.11As shown, in the technical solution of this embodiment, the second mounting structure 30 includes a base 32 and a cover 33 covered on the base 32. The bottom of the base 32 is provided with a first through hole 321 for passing the wiring harness of the second electrical connector 61, and the cover 33 is provided with a second through hole 331 for inserting the insertion rod 52. The connection seat 60 is slidably arranged in the base 32, and the space in the base 32 and the cover 33 enclose the accommodating cavity 31.

[0089] Specifically, the base 32 is a box-shaped structure with an open top, and has a bottom wall and an annular side wall. The height of the base 32 is adapted to the stroke of the headrest 50. Those skilled in the art will appreciate that Figure 1 and Figure 2 As shown, when the pillow body 51 is in the lowest installation position, the connecting seat 60 is located at the bottom position of the base 32; Fig.10 and Fig.11 As shown, when the pillow body 51 is close to the position of being removed from the backrest, the connecting seat 60 is located at the top position of the base 32 .

[0090] It can also be seen from FIG. 2 that a first through hole 321 is provided on the bottom wall of the base 32 , and the wiring harness of the second electrical connector 61 can pass through the first through hole 321 and be connected to the electronic control unit in the vehicle.

[0091] Furthermore, a cover 33 is provided at the opening of the base 32, and the cover 33 closes the opening of the base 32, and the space inside the base 32 and the cover 33 form the above-mentioned accommodation cavity 31. The cover 33 is provided with a second through hole 331, and the end of the above-mentioned insertion rod 52 can be inserted into the base 32 through the second through hole 331. Those skilled in the art can understand that the second through hole 331 also forms the opening of the above-mentioned accommodation cavity 31.

[0092] By providing the base 32 and the cover 33, the accommodating cavity 31 in the second mounting structure 30 is more closed, and foreign matter is not easy to enter the accommodating cavity 31. In particular, when the second mounting structure 30 is embedded in the backrest, the working stability of the connecting seat 60 and the structure arranged thereon can be ensured.

[0093] like Figure 2 and Fig.11 As shown, in the technical solution of this embodiment, the unlocking member 311 is arranged on the surface of the cover body 33 facing the base 32 .

[0094] Specifically, a substantially "V"-shaped protrusion is provided on the lower surface of the cover body 33, one side of the protrusion extends vertically, and the other side extends obliquely, and the outer surface of the obliquely extended side forms the above-mentioned push-up inclined surface. Further, when the cover body 33 is covered on the base 32, the protrusion is located above the side wall of the base 32, that is, the push-up inclined surface is formed at the top position of the accommodating cavity 31.

[0095] With such a configuration, when the pillow body 51 is about to be removed from the backrest, the connecting seat 60 is driven by the insertion rod 52 to a position close to the cover body 33. Then, the first button 621 is squeezed by the push-up inclined surface on the cover body 33 to separate the connecting seat 60 and the insertion rod 52. And as mentioned above, after the headrest 50 is removed, the connecting seat 60 is fixed below the cover body 33 by the squeezing horizontal component of the push-up inclined surface. The position of the connecting seat 60 is close to the second through hole 331, so when the headrest 50 is subsequently installed, it is convenient for the lower end of the insertion rod 52 to quickly cooperate with the connecting seat 60, ensuring the stability of the installation process.

[0096] In addition, the push-up inclined surface is arranged on the cover body 33, so that the push-up inclined surface is easy to process and shape.

[0097] In some embodiments not shown, the push-up slope may also be provided at the top position of the inner side wall of the connecting seat 60 .

[0098] like Figure 2 , Figure 7 and Fig.11 As shown, in the technical solution of this embodiment, a convex edge 322 is provided on the outer side wall of the base 32 , and a positioning structure 70 and a connecting structure 80 are provided between the convex edge 322 and the cover body 33 .

[0099] Specifically, the flange 322 is provided to increase the installation area, thereby facilitating assembly and increasing connection stability. The flange 322 is provided on the outer side wall of the base 32 and is located at the top of the base 32. Further, the flange 322 is an annular flange that surrounds a full circle.

[0100] Furthermore, the positioning structure 70 between the flange 322 and the cover 33 is used to fix the relative position between the two. The connecting structure 80 between the flange 322 and the cover 33 is used to connect the two together and ensure the sealing performance between the base 32 and the cover 33.

[0101] like Figure 7 As shown, in the technical solution of this embodiment, the positioning structure 70 includes a positioning column 71 provided on the flange 322, and a positioning hole 72 provided on the cover body 33, and the positioning column 71 is used to pass through the positioning hole 72. During assembly, after the positioning column 71 passes through the positioning hole 72 from bottom to top, the relative position of the base 32 and the cover body 33 can be fixed.

[0102] like Figure 7 As shown, in the technical solution of this embodiment, a boss 3221 is provided on the convex edge 322, and a connecting hole 3222 is provided on the end surface of the boss 3221. A third through hole 332 is provided on the cover body 33. The connecting structure 80 includes a connecting screw, which passes through the third through hole 332 and is connected to the connecting hole 3222.

[0103] Specifically, the provision of the protruding column 3221 can increase the connection strength, so that the flange 322 is not easily damaged when a large tightening force is applied to the connecting screw. Figure 7 It can also be seen that when the cover body 33 is covered on the connecting seat 60, the top of the protrusion 3221 is close to the cover body 33 (or abuts against it), so that the assembly of the connecting screw is more stable.

[0104] Optionally, the connecting hole 3222 is a threaded hole.

[0105] Combination Figure 7 , Figure 8 and Fig. 9 A person skilled in the art can understand the contents shown in the figure. Two positioning posts 71 and two bosses 3221 are provided on the flange 322 . Correspondingly, two positioning holes 72 and two third through holes 332 are provided on the cover body 33 .

[0106] The two positioning posts 71 and the two convex posts 3221 are distributed at the four corners of a rectangle, and the two positioning posts 71 are located at two opposite vertex positions, and the two convex posts 3221 are located at the other two opposite vertex positions. In this way, the two positioning posts 71 can position the base 32 and the cover 33 from both sides, and the two connecting screws can press the cover 33 onto the base 32 from both sides, thereby ensuring the sealing performance between the base 32 and the cover 33.

[0107] like Figure 7 and Fig.11 As shown, in the technical solution of this embodiment, the edge of the cover body 33 is provided with a flange 333 bent toward the base 32 , and the flange 333 is covered on the outer side of the convex edge 322 .

[0108] Specifically, the flange 333 surrounds the cover 33 in a full circle to form an annular structure. The flange 333 is arranged vertically and is perpendicular to the plane where the flange 322 is located. The flange 333 surrounds the outer side of the flange 322, and the inner surface of the flange 333 is adapted to the outer edge of the flange 322.

[0109] By providing the flange 333 and making the flange 333 cooperate with the convex edge 322, a structure similar to a labyrinth seal is formed, which further enhances the sealing performance between the base 32 and the cover 33 and ensures that foreign matter is not easily introduced into the accommodating cavity 31.

[0110] like Figures 5 to 9 ,as well as Fig.11As shown, in the technical solution of this embodiment, the first mounting structure 20 includes a tube body 21 and a connecting frame 22. The tube body 21 is arranged on the side of the cover body 33 away from the base 32, and the tube body 21 is coaxially arranged with the second through hole 331, and the connecting frame 22 is used to connect the tube body 21 to the cover body 33.

[0111] Specifically, the tube body 21 is a long tubular structure having a through hole. The through hole of the tube body 21 is coaxially arranged with the second through hole 331. Figure 6 It can be seen that a decorative ring is provided at the end of the tube body 21 away from the second mounting structure 30 . The decorative ring is located at the top of the backrest and serves as an entrance for inserting the insertion rod 52 .

[0112] When assembling the headrest 50, the insertion rod 52 is inserted into the tube body 21 through the decorative ring, and then the insertion rod 52 is further inserted so that the insertion rod 52 is inserted into the accommodating cavity 31 from the second through hole 331. How the end of the insertion rod 52 after insertion cooperates with the connecting seat 60 has been described in detail above, so it will not be repeated here.

[0113] The function of the connecting frame 22 is to connect the pipe body 21 and the second mounting structure 30 into an assembly. When assembling, the assembly can be connected to the frame body 10, so that the assembly is simple. The specific structure of the connecting frame 22 is as follows.

[0114] from Figure 8 and Fig. 9 It can be seen that the connecting frame 22 includes a sleeve 221 and a connecting plate 222. The sleeve 221 is sleeved and fixed outside the tube body 21, and the sleeve 221 is connected to the frame body 10. The connecting plate 222 includes a first plate segment 2221 and a second plate segment 2222, the first plate segment 2221 is connected to the sleeve 221, and the second plate segment 2222 is connected to the cover body 33.

[0115] Specifically, the first plate segment 2221 and the second plate segment 2222 of the connecting plate 222 are vertically arranged to form a substantially "L"-shaped structure. The first plate segment 2221 is connected to the sleeve 221, and the second plate segment 2222 is connected to the cover 33. Thus, the connection between the tube body 21 and the second mounting structure 30 is achieved.

[0116] from Figure 8 and Fig. 9 It can also be seen that there are two connecting plates 222, which are respectively arranged at the two sides of the sleeve 221. Among them, two through holes are arranged on the second plate section 2222 of each connecting plate 222, and the four through holes are also distributed at the four corners of the above-mentioned rectangle, that is, corresponding to the positions of the above-mentioned two positioning holes 72 and the two third through holes 332. During assembly, the two positioning columns 71 pass through two of the through holes respectively, and the two connecting screws pass through the remaining two through holes respectively.

[0117] In the above structure, the positioning column 71 realizes the positioning between the connecting frame 22 and the cover body 33, that is, realizes the positioning of the first mounting structure 20 and the second mounting structure 30, thereby ensuring the alignment requirement between the through hole of the tube body 21 and the second through hole 331.

[0118] Furthermore, the above-mentioned connecting screws realize the connection of the connecting frame 22 to the cover body 33, that is, the connection between the base 32 and the cover body 33 and the fixed installation of the first mounting structure 20 and the second mounting structure 30 can be achieved by only one set of fasteners.

[0119] After the connection frame 22, the tube body 21 and the second mounting structure 30 are assembled, Fig. 9 As shown, a rectangular protrusion is provided on the sleeve 221 and has a first plane, and a depression is provided on the frame 10 to form a second plane. The first plane and the second plane can be welded to increase the connection area between the sleeve 221 and the frame 10, and ensure the connection strength between the tube body 21 and the second mounting structure 30 on the frame 10.

[0120] Of course, the sleeve 221 and the frame 10 may also be connected by bolts, buckles, etc.

[0121] Furthermore, the connection between the sleeve 221 and the tube body 21 is as follows.

[0122] like Figure 5 , Figures 7 to 9 As shown, in the technical solution of this embodiment, a positioning convex edge 211 is provided on the tube body 21, and the positioning convex edge 211 is used to abut against the end of the sleeve 221 that is away from the cover body 33. An elastic buckle 212 is also provided on the tube body 21, and the elastic buckle 212 is spaced apart from the positioning convex edge 211, and the elastic buckle 212 is used to abut against the end of the sleeve 221 that faces the cover body 33.

[0123] from Figure 5 It can be seen that the positioning flange 211 is an annular flange, which is arranged near the upper side of the tube body 21. Figure 7 It can be seen that the elastic buckle 212 is arranged near the lower side of the tube body 21. The positioning protrusion 211 and the elastic buckle 212 respectively limit the two end positions of the sleeve 221, thereby fixing the axial position of the sleeve 221 on the tube body 21.

[0124] Furthermore, the specific structure of the elastic buckle 212 includes four sides, wherein the bottom side is connected to the tube body 21, and there are slits between the top side and the two side sides and the tube body 21, forming a structure similar to an elastic arm, that is, the elastic buckle 212 can swing into the tube body 21 under the action of an external force. The elastic buckle 212 also has a wedge-shaped block protruding from the surface of the tube body 21.

[0125] Based on the structure of the elastic buckle 212, during assembly, the sleeve 221 is sleeved from bottom to top outside the tube body 21 and moves upward. During the movement of the sleeve 221, the upper end of the sleeve 221 squeezes the wedge block of the elastic buckle 212, thereby driving the elastic buckle 212 to swing toward the inside of the tube body 21. The sleeve 221 is assembled upward until the lower end of the sleeve 221 is located above the elastic buckle 212, and the elastic buckle 212 loses the squeezing force and restores its position under the action of its own elastic force. At this time, the straight surface of the wedge block of the elastic buckle 212 is limited below the sleeve 221, and the positioning convex edge 211 is limited above the sleeve 221, so as to achieve axial fixation of the sleeve 221.

[0126] Optionally, two of the elastic buckles 212 are provided, and the two elastic buckles 212 are axially symmetrically arranged relative to the axis of the tube body 21 .

[0127] like Figure 8 As shown, in the technical solution of this embodiment, one of the ends of the positioning protrusion 211 and the sleeve 221 facing away from the cover body 33 is provided with a stop protrusion 2111 and the other is provided with a stop recess 2211, and the stop protrusion 2111 is used to cooperate with the stop recess 2211.

[0128] Specifically, the anti-rotation protrusion 2111 and the anti-rotation recess 2211 play a role in circumferential positioning of the sleeve 221. In the above assembly process, the sleeve 221 can only be moved to the assembly position after the anti-rotation protrusion 2111 is inserted into the anti-rotation recess 2211, otherwise the anti-rotation protrusion 2111 will prevent the sleeve 221 from moving further upward, that is, until the lower end of the sleeve 221 cannot move above the elastic buckle 212.

[0129] After assembly, the anti-rotation protrusion 2111 and the anti-rotation recess 2211 can prevent the sleeve 221 from rotating in the circumferential direction relative to the tube body 21, thereby achieving the effect of anti-rotation and circumferential positioning.

[0130] In this embodiment, the anti-rotation protrusion 2111 is arranged on the side of the positioning protrusion 211 facing the second mounting structure 30, and the anti-rotation recess 2211 is arranged on the side of the sleeve 221 away from the second mounting structure 30. Of course, the setting positions of the anti-rotation protrusion 2111 and the anti-rotation recess 2211 can also be reversed.

[0131] The advantage of the above structure is that no additional tools and fasteners are required for assembling the sleeve 221 and the tube body 21 , and reliable axial and circumferential positioning of the sleeve 221 can be achieved.

[0132] Furthermore, the first plate segments 2221 of the two connecting frames 22 can be pre-welded to the sleeve 221, so that the sleeve 221 and the connecting plate 222 form a pre-processed part.

[0133] Combination Figure 7 and Figure 8 It can be seen that after the sleeve 221 is assembled on the tube body 21, the first plate segments 2221 of the two connecting frames 22 are respectively located outside the two elastic buckles 212. In this way, the two first plate segments 2221 can also prevent the external structure from accidentally touching the elastic buckle 212 and swinging inward, thereby preventing the sleeve 221 from detaching from the tube body 21.

[0134] Those skilled in the art can also understand that, after the insertion rod 52 is inserted into the tube body 21 , the outer wall of the insertion rod 52 can also prevent the elastic buckle 212 from swinging inwards.

[0135] Finally, the specific structure of the fixing structure 40 on the first installation structure 20 is introduced.

[0136] like Figure 4 , Figure 5 and Figure 6 As shown, in the technical solution of this embodiment, the fixing structure 40 includes a second plug 41 and a second elastic reset member 42. A plurality of second recesses 522 are arranged at intervals on the plug rod 52, and the second plug 41 is used to be inserted into the second recess 522. The second plug 41 is movably arranged in the first mounting structure 20, and the second elastic reset member 42 is used to apply a reset force to the second plug 41 toward the plug rod 52, and a portion of the second plug 41 protrudes from the second mounting structure 30 and forms a second button 43.

[0137] Specifically, a plurality of second recesses 522 are arranged at intervals at the top of the insertion rod 52, and the positions of the plurality of second recesses 522 are determined by the adjustable height level of the pillow body 51 relative to the backrest. It should be noted that no matter which second recess 522 the second plug 41 is inserted into, the position of the connection seat 60 at the corresponding lower end of the insertion rod 52 is located below the unlocking member 311 (i.e., the push-up inclined surface). That is, when the user adjusts the height level of the pillow body 51, the push-up inclined surface will not push the first button 621, which ensures that the connection seat 60 and the insertion rod 52 are always connected together, and ensures that the first electrical connector 53 and the second electrical connector 61 are stably connected.

[0138] Furthermore, the second plug 41 and the second elastic reset member 42 are both arranged in the decorative ring at the top of the tube 21. The second plug 41 partially protrudes from the decorative ring to form a second button 43. When the user presses the second button 43, the second plug 41 can be disengaged from the second recess 522, and the user can adjust the position of the pillow body 51 relative to the backrest up and down. When the user adjusts the pillow body 51 to a suitable height, the second button 43 is released, so that the second plug 41 is inserted into the corresponding second recess 522 under the action of the second elastic reset member 42, and the pillow body 51 can be fixed relative to the backrest.

[0139] When the headrest 50 needs to be removed, the user continues to press the second button 43 and continues to move the pillow body 51 upward, and the end of the insertion rod 52 first detaches from the second mounting structure 30 and then detaches from the first mounting structure 20 until the headrest 50 is completely detached from the backrest.

[0140] When the headrest 50 needs to be installed, the user continues to press the second button 43, then inserts the insertion rod 52 from the decorative ring into the first mounting structure 20, and then continues to move the pillow body 51 downward, so that the insertion rod 52 passes through the first mounting structure 20 and then continues to move downward and is inserted into the second mounting structure 30, so that the end of the insertion rod 52 is reconnected with the connecting seat 60. Then, when the user adjusts the pillow body 51 to a suitable height, the second button 43 is released, so that the second insertion piece 41 is inserted into the corresponding second recess 522 under the action of the second elastic reset member 42, and the pillow body 51 can be fixed relative to the backrest.

[0141] How to separate and reconnect the end of the insertion rod 52 from the connection seat 60 has been described in detail above, so it will not be repeated here.

[0142] It should be noted that, combined with Fig.10 As can be seen from the content, two insertion rods 52 are connected to the pillow body 51. The first mounting structure 20 and the second mounting structure 30 are provided at the position corresponding to the right insertion rod 52 on the frame body 10. A guide sleeve is provided at the position corresponding to the left insertion rod 52 on the frame body 10. The appearance of the guide sleeve is similar to the tube body 21, and it only guides and fixes the insertion rod 52, so no fixing structure 40 is provided.

[0143] The present application also provides a vehicle. According to an embodiment of the vehicle of the present application, the vehicle includes the above-mentioned seat support device.

[0144] Optionally, the seat support device can be any seat in the vehicle (front seat, rear seat, driver seat or passenger seat).

[0145] Optionally, the vehicle can be a fuel vehicle or a new energy electric vehicle.

[0146] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A seat support device, characterized in that: include: A backrest, comprising a frame (10); A first mounting structure (20) and a second mounting structure (30) are both fixed on the frame (10); the first mounting structure (20) and the second mounting structure (30) are arranged opposite to each other; a fixing structure (40) is arranged on the first mounting structure (20); and the second mounting structure (30) has a receiving cavity (31) opening toward the first mounting structure (20); A headrest (50), comprising a pillow body (51) and an insertion rod (52) arranged on the pillow body (51), wherein the end of the insertion rod (52) is provided with a first electrical connector (53), and after the insertion rod (52) passes through the first mounting structure (20), it is inserted into the accommodating cavity (31), and the fixing structure (40) is used to fix the relative position of the insertion rod (52) and the first mounting structure (20); A connecting seat (60) is slidably disposed in the accommodating cavity (31), and a second electrical connector (61) for connecting to the first electrical connector (53) is disposed on the connecting seat (60). A locking member (62) is disposed on the connecting seat (60), and the locking member (62) has a locking position that cooperates with the insertion rod (52) and an unlocking position that is separated from the insertion rod (52).

2. The seat support device according to claim 1, characterized in that: An unlocking member (311) is provided on the inner wall of the accommodating cavity (31), and when the insertion rod (52) drives the connecting seat (60) to move to a preset position, the unlocking member (311) cooperates with the locking member (62) and drives the locking member (62) to move from the locking position to the unlocking position.

3. The seat support device according to claim 2, characterized in that: The insertion rod (52) is provided with a first recess (521), and the locking member (62) comprises a first inserting piece. When the first inserting piece is in the locking position, the first inserting piece is inserted into the first recess (521), and when the first inserting piece is in the unlocking position, the first inserting piece is withdrawn from the first recess (521).

4. The seat support device according to claim 3, characterized in that: The connecting seat (60) is provided with a first elastic reset member (63), which is connected between the first plug-in piece and the connecting seat (60) and provides a reset force for the first plug-in piece toward the locking position, and when the first plug-in piece cooperates with the unlocking member (311), the unlocking member (311) pushes the first plug-in piece to move toward the unlocking position.

5. The seat support device according to claim 4, characterized in that: A portion of the first plug piece protrudes from the connecting seat (60) and forms a first button (621); the unlocking member (311) includes a push-up inclined surface; when the insert rod (52) drives the connecting seat (60) to move to a preset position, the push-up inclined surface pushes the first button (621) to drive the first plug piece to move to the unlocking position.

6. The seat support device according to any one of claims 2 to 5, characterized in that: The second mounting structure (30) comprises a base (32) and a cover body (33) covering the base (32); the bottom of the base (32) is provided with a first through hole (321) for allowing the wiring harness of the second electrical connector (61) to pass through; the cover body (33) is provided with a second through hole (331) for allowing the insertion rod (52) to be inserted; the connecting seat (60) is slidably arranged in the base (32); the space in the base (32) and the cover body (33) enclose the accommodating cavity (31).

7. The seat support device according to claim 6, characterized in that: The unlocking member (311) is arranged on a surface of the cover body (33) facing the base (32).

8. The seat support device according to claim 6, characterized in that: A convex edge (322) is provided on the outer side wall of the base (32), and a positioning structure (70) and a connecting structure (80) are provided between the convex edge (322) and the cover body (33).

9. The seat support device according to claim 8, characterized in that: The positioning structure (70) comprises a positioning column (71) arranged on the flange (322), and a positioning hole (72) arranged on the cover body (33), wherein the positioning column (71) is used to pass through the positioning hole (72); and / or, The convex edge (322) is provided with a boss (3221), the end surface of the boss (3221) is provided with a connection hole (3222), the cover body (33) is provided with a third through hole (332), the connection structure (80) comprises a connection screw, and the connection screw passes through the third through hole (332) and is connected to the connection hole (3222); and / or, The edge of the cover body (33) is provided with a flange (333) bent toward the base (32), and the flange (333) is covered on the outer side of the convex edge (322).

10. The seat support device according to claim 6, characterized in that: The first mounting structure (20) comprises a tube body (21) and a connecting frame (22); the tube body (21) is arranged on a side of the cover body (33) away from the base (32), and the tube body (21) is coaxially arranged with the second through hole (331); and the connecting frame (22) is used to connect the tube body (21) to the cover body (33).

11. The seat support device according to claim 10, characterized in that: The connecting frame (22) comprises a sleeve (221) and a connecting plate (222); the sleeve (221) is sleeved and fixed outside the tube body (21); the sleeve (221) is connected to the frame body (10); the connecting plate (222) comprises a first plate segment (2221) and a second plate segment (2222); the first plate segment (2221) is connected to the sleeve (221); and the second plate segment (2222) is connected to the cover body (33).

12. The seat support device according to claim 11, characterized in that: The tube body (21) is provided with a positioning protrusion (211), and the positioning protrusion (211) is used to abut against one end of the sleeve (221) facing away from the cover body (33). The tube body (21) is also provided with an elastic buckle (212), and the elastic buckle (212) is spaced apart from the positioning protrusion (211), and the elastic buckle (212) is used to abut against one end of the sleeve (221) facing the cover body (33).

13. The seat support device according to claim 12, characterized in that: One of the ends of the positioning protrusion (211) and the sleeve (221) facing away from the cover body (33) is provided with a stop protrusion (2111) and the other is provided with a stop recess (2211), and the stop protrusion (2111) is used to cooperate with the stop recess (2211).

14. The seat support device according to any one of claims 1 to 4, characterized in that: The fixing structure (40) comprises a second plug-in piece (41) and a second elastic reset member (42); a plurality of second recesses (522) are arranged at intervals on the insertion rod (52); the second plug-in piece (41) is used to be inserted into the second recess (522); the second plug-in piece (41) is movably arranged in the first mounting structure (20); and the second elastic reset member (42) is used to apply a reset force to the second plug-in piece (41) toward the insertion rod (52); a portion of the second plug-in piece (41) protrudes from the second mounting structure (30) and forms a second button (43).

15. A vehicle, characterized in that: The invention comprises a seat support device as claimed in any one of claims 1 to 14.

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