Automobile seat framework with rotary self-locking function

Abstract

The invention relates to the technical field of automobile seats, in particular to an automobile seat framework with a rotary self-locking function, comprising a seat base fixedly mounted in an automobile compartment; a rectangular cavity is formed in the seat base; a jacking assembly is installed on the inner side wall of the seat base. A rectangular frame is installed in the seat base and located above the jacking assembly. A self-locking assembly is installed on the inner side wall of the rectangular frame in a sliding mode. An adjusting assembly is installed on the side wall of the rectangular frame. A cushion is mounted above the rectangular frame; handrails are fixedly mounted on the left side and the right side of the seat cushion; a backrest is rotationally mounted between the two armrests; a headrest is mounted at the top of the backrest; a headrest adjusting assembly is mounted in the backrest; a backrest rotation adjusting assembly is installed between the two armrests and located on the rear side of the backrest. The seat is convenient to disassemble and assemble, the seat is adjusted according to the conditions of a human body, and the comfort of the seat is improved under the condition that the safety and firmness are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, and in particular to an automobile seat frame with a rotation self-locking function. Background Art

[0002] With the continuous advancement of science and technology, people now have more and more types of transportation to choose from. When using these transportation tools, people not only pursue speed and convenience, but also have higher and higher requirements for travel safety. Buses and cars are one of the most frequently used transportation tools. Car seat frames are important components of buses and cars, and are also one of the components that are directly related to riding safety.

[0003] Most existing automobile seat frames are directly welded in the car body. This structure is not only troublesome to assemble but also difficult to replace when damaged. In addition, this type of seat cannot be adjusted according to the human body's own conditions and has a low comfort level.

[0004] Therefore, the present invention provides a car seat frame with a rotation self-locking function to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a car seat frame with a rotating self-locking function to solve the above-mentioned problems such as troublesome assembly and disassembly, inability to adjust the seat according to individual differences, and low comfort.

[0006] A car seat frame with a rotating self-locking function includes a seat base, which is fixedly installed in a car compartment; a rectangular cavity is provided inside the seat base; a lifting assembly is installed on the inner side wall of the seat base; a rectangular frame is installed inside the seat base and above the lifting assembly; a self-locking assembly is slidably installed on the inner side wall of the rectangular frame; an adjustment assembly is installed on the side wall of the rectangular frame; a seat cushion is installed above the rectangular frame; armrests are fixedly installed on the left and right sides of the seat cushion; a backrest is rotatably installed between the two armrests and at the rear side of the seat cushion; a headrest is installed on the top of the backrest; a headrest adjustment assembly is installed in the backrest; and a backrest rotation adjustment assembly is installed between the two armrests and at the rear side of the backrest.

[0007] Preferably, the jacking assembly includes jacking chutes vertically formed in the middle of the inner walls on the left and right sides of the seat base; jacking plates are slidably installed in the two jacking chutes; a limiting rod is fixedly installed in the middle of each jacking plate by screws, and the limiting rod is horizontally installed; jacking limiting grooves are formed at both ends of each limiting rod; a jacking rotating shaft is symmetrically and rotatably installed between the inner walls on the left and right sides of the seat base; jacking driving plates are fixedly installed at both ends of each jacking rotating shaft; a jacking driving block is fixedly installed at the center of each jacking driving plate; the two jacking driving blocks on the same side are respectively located in the two jacking limiting grooves of the limiting rod on the same side; the sides of the two jacking driving plates on the same side close to the jacking plate are arc-shaped; one end of each of the two jacking rotating shafts penetrates through the seat base and extends outward to be fixedly installed with a synchronous pulley; a synchronous belt is sleeved outside the two synchronous pulleys; the other end of one of the jacking rotating shafts penetrates through the side wall of the seat base and extends outward, and a jacking adjusting wheel is fixedly installed at the end of its extended end.

[0008] Preferably, two groups of lifting chutes are symmetrically formed on the inner walls on the left and right sides of the seat base; each group of lifting chutes has two and is arranged on the same side; the rectangular frame is slidably installed in the lifting chutes; a baffle is fixedly installed in the middle of the outer wall of the rectangular frame.

[0009] Preferably, the self-locking assembly includes a U-shaped frame slidably installed on the front and rear inner walls of the rectangular frame; a self-locking frame is fixedly installed on the left inner wall of the U-shaped frame; a self-locking push rod penetrates through the right side wall of the self-locking frame; a self-locking block is fixedly installed at the left end of the self-locking push rod and inside the self-locking frame; self-locking limiting plates are fixedly installed on the front and rear sides of the bottom of the self-locking block; self-locking limiting grooves are formed at the bottoms of the two self-locking limiting plates; two self-locking plates are symmetrically and vertically installed at the bottom of the self-locking frame; a self-locking shaft is fixedly installed between the two self-locking plates; a self-locking hook is rotatably installed on the self-locking shaft and between the two self-locking limiting plates; self-locking limiting blocks are fixedly installed on the front and rear side walls of the left end of the self-locking hook; the two self-locking limiting blocks are respectively located in their corresponding self-locking limiting grooves; a self-locking rod is fixedly installed in the middle of the left side wall of the self-locking frame; a self-locking spring is sleeved outside the self-locking rod; the two ends of the self-locking spring are respectively fixedly connected to the self-locking frame and the self-locking block; a self-locking cavity is formed inside the self-locking push rod, and the self-locking rod penetrates through the self-locking block and extends into the self-locking cavity; a special-shaped self-locking groove is formed on the upper end surface of the self-locking block; a self-locking limiting rod is rotatably installed on the left side of the upper end surface of the self-locking frame; a limiting slider is fixedly installed at the bottom of the right end of the self-locking limiting rod; the limiting slider is located in the special-shaped self-locking groove.

[0010] Preferably, the adjusting assembly includes an adjusting rod rotatably installed on the right side wall of the rectangular frame; an adjusting handwheel and an adjusting gear are respectively fixedly installed at both ends of the adjusting rod, and the adjusting gear is located inside the rectangular frame; adjusting slide bars are fixedly installed on the front and rear outer walls of the C-shaped frame; adjusting chutes are horizontally formed on the front and rear inner walls of the rectangular frame; the C-shaped frame is slidably installed in the adjusting chutes through the two adjusting slide bars; an adjusting rack is fixedly installed on the upper end surface of the right adjusting slide bar, and the adjusting rack meshes with the adjusting gear.

[0011] Preferably, two limiting chutes are symmetrically formed at the bottom of the seat cushion; limiting slide bars are fixedly installed on the front and rear sides of the upper end surface of the C-shaped frame; the C-shaped frame is slidably installed in the limiting chutes at the bottom of the seat cushion through the limiting slide bars.

[0012] Preferably, a stop block is fixedly installed at the bottom of the seat cushion; a hook is fixedly installed at the center of the bottom of the stop block; a plurality of limiting springs are fixedly installed on one side of the stop block away from the C-shaped frame; the other ends of the limiting springs are fixedly connected to the rectangular frame.

[0013] Preferably, the headrest adjusting assembly includes a headrest adjusting cavity; two headrest adjusting rods are fixedly installed at the bottom of the headrest; the lower ends of the headrest adjusting rods are located in the headrest adjusting cavity; a headrest adjusting frame is fixedly installed at the bottom of the headrest adjusting rod, and the headrest adjusting frame is slidably installed on the side wall of the headrest adjusting cavity; a headrest adjusting rack is fixedly installed on one inner wall of the headrest adjusting frame; a headrest adjusting shaft is rotatably installed on the rear side wall of the backrest; a headrest adjusting handwheel and a headrest adjusting gear are respectively fixedly installed at both ends of the headrest adjusting shaft, and the headrest adjusting gear is located in the headrest adjusting cavity; the headrest adjusting gear meshes with the headrest adjusting rack.

[0014] Preferably, the backrest rotation adjusting assembly includes a rotation shaft fixedly installed at the bottom of the backrest; backrest rotation adjusting gears are fixedly installed at both ends of the rotation shaft; a backrest rotation adjusting rod is rotatably installed between the two armrests and behind the backrest; rotation driving gears are fixedly installed at both ends of the backrest rotation adjusting rod; each rotation driving gear meshes with the backrest rotation adjusting gear on its same side; one end of the backrest rotation adjusting rod penetrates through the armrest and extends outward and is fixedly installed with a backrest rotation adjusting handwheel.

[0015] The beneficial effects of the present invention are: The present invention can adjust the height of the seat cushion, the angle of the backrest and the height of the headrest according to the height of the driver or passenger, so that the car seat can reach the most comfortable state for the driver or passenger, and prevent the driver or passenger from feeling uncomfortable due to the seat on the road, thereby causing traffic accidents. The height of the seat cushion can be adjusted by adjusting the lifting component, so that it is suitable for groups of different heights, thereby improving the comfort of the driver or passenger; by adjusting the headrest adjustment component, the height of the headrest can be adjusted, so as to play a certain protective role on the human head, and if a traffic accident occurs, the damage to the human head can be reduced to a certain extent; by adjusting the backrest rotation adjustment component, the angle of the backrest can be adjusted to reach the most comfortable state for the human back, so as to reduce the fatigue and discomfort caused by long-term sitting of passengers or drivers; in addition, the adjustment component can adjust the position of the seat cushion on the seat base, and fix it through the self-locking component, while improving the comfort of the human body, ensuring its firmness and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 It is a front view of the present invention; Figure 4 For the present invention Figure 2 Rear view section in the middle AA direction; Figure 5 For the present invention Figure 3 Stereoscopic cross-section in the middle BB direction; Figure 6 For the present invention Figure 3 Stereoscopic cross-section in the mid-CC direction; Figure 7 This is a schematic diagram of the three-dimensional structure when the seat base is removed from the present invention when viewed from above; Figure 8 For the present invention Figure 3 Stereoscopic cross-section in the middle DD direction; Fig. 9 For the present invention Figure 3 Left side cross-section in the EE direction; Fig.10 For the present invention Figure 5 The enlarged view of point A in the middle; Fig.11 For the present invention Fig. 9 The enlarged view of point B in the middle; Fig.12 For the present invention Figure 7 Enlarged view of point C in the middle; Fig.13 For the present invention Figure 6Enlarged view of the D area in the [specific context]; Fig.14 For the present invention Figure 4 Enlarged view of the E area in the [specific context].

[0017] In the figure: 1. Seat base; 2. Rectangular cavity; 3. Lifting assembly; 4. Rectangular frame; 5. Self-locking assembly; 6. Adjusting assembly; 7. Cushion; 8. Armrest; 9. Backrest; 10. Headrest; 11. Headrest adjusting assembly; 12. Backrest rotation adjusting assembly; 13. Lifting chute; 14. Lifting plate; 15. Limiting rod; 16. Lifting limit groove; 17. Lifting rotating shaft; 18. Lifting driving plate; 19. Lifting driving block; 20. Synchronous pulley; 21. Synchronous belt; 22. Lifting adjusting pulley; 23. Lifting and lowering chute; 24. Baffle; 25. C-shaped frame; 26. Self-locking frame; 27. Self-locking push rod; 28. Self-locking block; 29. Self-locking limiting plate; 30. Self-locking limit groove; 31. Self-locking plate; 32. Self-locking shaft; 33. Self-locking hook; 34. Self-locking limiting block; 35. Self-locking rod; 36. Self-locking spring; 37. Self-locking cavity; 38. Special-shaped self-locking groove; 39. Self-locking limiting rod; 40. Limiting slider; 41. Adjusting rod; 42. Adjusting handwheel; 43. Adjusting gear; 44. Adjusting slide bar; 45. Adjusting chute; 46. Adjusting rack; 47. Limiting chute; 48. Limiting slide bar; 49. Stopper; 50. Hook; 51. Limiting spring; 52. Headrest adjusting cavity; 53. Headrest adjusting rod; 54. Headrest adjusting frame; 55. Headrest adjusting rack; 56. Headrest adjusting shaft; 57. Headrest adjusting handwheel; 58. Headrest adjusting gear; 59. Rotating shaft; 60. Backrest rotation adjusting gear; 61. Backrest rotation adjusting rod; 62. Rotating driving gear; 63. Backrest rotation adjusting handwheel. Detailed implementation manners

[0018] Next, reference will be made to the reference appendices Figures 1 to 14 to explain each embodiment of the present invention in detail. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0019] An automotive seat frame with a rotation self-locking function, as shown in Appendix Figure 1 to Appendix Fig.14As shown, it includes a seat base 1, which is fixedly installed in the car compartment; a rectangular cavity 2 is provided inside the seat base 1; a lifting component 3 is installed on the inner wall of the seat base 1; a rectangular frame 4 is installed inside the seat base 1 and above the lifting component 3; a self-locking component 5 is slidably installed on the inner wall of the rectangular frame 4; an adjustment component 6 is installed on the side wall of the rectangular frame 4; a cushion 7 is installed above the rectangular frame 4; armrests 8 are fixedly installed on the left and right sides of the cushion 7; a backrest 9 is rotatably installed between the two armrests 8 and at the rear side of the seat cushion 7; a headrest 10 is installed on the top of the backrest 9; a headrest adjustment component 11 is installed in the backrest 9; a backrest rotation adjustment component 12 is installed between the two armrests 8 and at the rear side of the backrest 9.

[0020] When used specifically, the seat base 1 is first fixed in the car compartment, and the height of the seat cushion 7, the angle of the backrest 9 and the height of the headrest 10 can be adjusted according to the height of the driver or passenger, so that the car seat can reach the most comfortable state for the driver or passenger, and prevent the driver or passenger from feeling uncomfortable due to the seat on the road, thereby causing traffic accidents. The height of the seat cushion can be adjusted by adjusting the lifting component 3, so that it is suitable for groups of different heights, thereby improving the comfort of the driver or passenger; the height of the headrest 10 can be adjusted by adjusting the headrest adjustment component 11, so as to play a certain protective role on the human head, and if a traffic accident occurs, the damage to the human head can be reduced to a certain extent; the angle of the backrest 9 can be adjusted by adjusting the backrest rotation adjustment component 12, so that it can reach the most comfortable state for the human back, so as to reduce the fatigue and discomfort caused by long-term sitting of the passenger or driver; the adjustment component 6 can adjust the position of the seat cushion 7 on the seat base 1, and fix it through the self-locking component 5, while improving the comfort of the human body, ensuring its firmness and safety.

[0021] As attached Figure 1 To Attachment Figure 3 , Attachment Fig. 9As shown, the lifting assembly 3 includes a lifting slot 13 vertically opened in the middle of the left and right inner walls of the seat base 1; a lifting plate 14 is slidably installed in the two lifting slots 13; a limit rod 15 is fixedly installed in the middle of each lifting plate 14 by screws, and the limit rod 15 is horizontally installed; a lifting limit slot 16 is opened at both ends of each limit rod 15; a lifting shaft 17 is symmetrically and rotatably installed between the left and right inner walls of the seat base 1; a lifting drive plate 18 is fixedly installed at both ends of each lifting shaft 17; and a lifting drive plate 18 is fixedly installed at each of the lifting drive plates 1 8 is fixedly installed with a lifting drive block 19 at the center; the two lifting drive blocks 19 on the same side are respectively located in the two lifting limit grooves 16 of the limit rod 15 on the same side; the two lifting drive plates 18 on the same side are arranged in an arc shape close to the side of the lifting plate 14; one end of the two lifting shafts 17 passes through the seat base 1 and extends outwardly to be fixedly installed with a synchronous wheel 20; a synchronous belt 21 is provided on the outer sleeve of the two synchronous wheels 20; the other end of one of the lifting shafts 17 passes through the side wall of the seat base 1 and extends outward, and a lifting adjustment wheel 22 is fixedly installed at the end of its extended end.

[0022] As attached Figure 1 , Attachment Fig. 9 As shown, two groups of lifting slots 23 are symmetrically opened on the left and right inner walls of the seat base 1; each group of lifting slots 23 is provided with two and are arranged on the same side; the rectangular frame 4 is slidably installed in the lifting slots 23; and a baffle 24 is fixedly installed in the middle of the outer wall of the rectangular frame 4.

[0023] During specific use, the lifting adjustment wheel 22 is manually rotated. Since the synchronous belt 21 is cross-arranged, the rotation of the lifting adjustment wheel 22 can drive the two lifting shafts 17 to rotate relative to each other; when the lifting adjustment wheel 22 rotates counterclockwise, it can drive the limit rod 15 to move upward, thereby driving the lifting plate 14 to slide upward, and further driving the rectangular frame 4 to slide upward; when the lifting adjustment wheel 22 rotates clockwise, it can drive the limit rod 15 to move downward, thereby driving the lifting plate 14 to slide downward, and further driving the rectangular frame 4 to slide downward, so that the height of the seat cushion 7 can be adjusted to make it suitable for groups of different heights, further improving the comfort of the driver or passengers.

[0024] As attached Figure 5 , Attachment Figure 8 , Attachment Fig.10 To Attachment Fig.12As shown, the self-locking assembly 5 includes a U-shaped frame 25 slidably mounted on the inner walls of the front and rear sides of the rectangular frame 4; a self-locking frame 26 is fixedly mounted on the left inner wall of the U-shaped frame 25; a self-locking push rod 27 is installed through the right side wall of the self-locking frame 26 on the right side; a self-locking block 28 is fixedly mounted at the left end of the self-locking push rod 27 and inside the self-locking frame 26; self-locking limit plates 29 are fixedly mounted on the front and rear sides of the bottom of the self-locking block 28; self-locking limit grooves 30 are formed at the bottoms of the two self-locking limit plates 29; two self-locking plates 31 are symmetrically and vertically mounted at the bottom of the self-locking frame 26; a self-locking shaft 32 is fixedly mounted between the two self-locking plates 31; a self-locking hook 33 is rotatably mounted on the self-locking shaft 32 and between the two self-locking limit plates 29; self-locking limit blocks 34 are fixedly mounted on the front and rear side walls of the left end of the self-locking hook 33; the two self-locking limit blocks 34 are respectively located in their corresponding self-locking limit grooves 30; a self-locking rod 35 is fixedly mounted in the middle of the left side wall of the self-locking frame 26; a self-locking spring 36 is sleeved on the self-locking rod 35; the two ends of the self-locking spring 36 are respectively fixedly connected to the self-locking frame 26 and the self-locking block 28; a self-locking cavity 37 is formed inside the self-locking push rod 27, and the self-locking rod 35 penetrates through the self-locking block and extends into the self-locking cavity 37; a special-shaped self-locking groove 38 is formed on the upper end surface of the self-locking block 28; a self-locking limit rod 39 is rotatably mounted on the left side of the upper end surface of the self-locking frame 26; a limit slider 40 is fixedly mounted at the bottom of the right end of the self-locking limit rod 39; the limit slider 40 is located in the special-shaped self-locking groove 38.

[0025] As shown in the attached Figure 1 drawing Figure 7 s, Fig.11 the Fig.13 attached drawings, the adjusting assembly 6 includes an adjusting rod 41 rotatably mounted on the right side wall of the rectangular frame 4; adjusting handwheels 42 and adjusting gears 43 are respectively fixedly mounted at both ends of the adjusting rod 41, and the adjusting gear 43 is located inside the rectangular frame 4; adjusting slide bars 44 are fixedly mounted on the outer walls of the front and rear sides of the U-shaped frame 25; adjusting chutes 45 are horizontally formed on the inner walls of the front and rear sides of the rectangular frame 4; the U-shaped frame 25 is slidably mounted in the adjusting chutes 45 through the two adjusting slide bars 44; an adjusting rack 46 is fixedly mounted on the upper end surface of the right adjusting slide bar 44, and the adjusting rack 46 meshes with the adjusting gear 43.

[0026] As shown in the attached Figure 7 drawings, two limit chutes 47 are symmetrically formed at the bottom of the seat cushion 7; limit slide bars 48 are fixedly mounted on the front and rear sides of the upper end surface of the U-shaped frame 25; the U-shaped frame 25 is slidably mounted in the limit chutes 47 at the bottom of the seat cushion 7 through the limit slide bars 48.

[0027] As shown in the attached Figure 8 and the attached Fig.11 As shown, a stop block 49 is fixedly installed at the bottom of the seat cushion 7; a hook 50 is fixedly installed at the center of the bottom of the stop block 49; a plurality of limiting springs 51 are fixedly installed on one side of the stop block 49 away from the U-shaped frame 25; the other end of the limiting spring 51 is fixedly connected to the rectangular frame 4.

[0028] During specific use, manually rotating the adjusting handwheel 42 can drive the adjusting gear 43 to rotate. When the adjusting handwheel 42 rotates clockwise, it can drive the U-shaped frame 25 to slide forward, and the self-locking push rod 27 will push the stop block 49 to slide forward. Since the stop block 49 and the rectangular frame 4 are connected by a plurality of limiting springs 51 (when the rear wall of the U-shaped frame 25 contacts the rectangular frame 4, the limiting springs 51 are in a stretched state, which is the state shown in Fig. 9 ), under the dual action of the pulling force of the limiting spring 51 and the pushing force of the self-locking push rod 27, the seat cushion 7 is pushed to slide forward relative to the seat base 1, and the self-locking hook 33 and the hook 50 do not separate, that is, the position of the seat cushion 7 is adjusted while ensuring the firmness and safety of the seat.

[0029] As shown in the attached Figure 2 and the attached Figure 4 and the attached Fig.14 As shown, the headrest adjustment assembly 11 includes a headrest adjustment cavity 52; two headrest adjustment rods 53 are fixedly installed at the bottom of the headrest 10; the lower ends of the headrest adjustment rods 53 are located in the headrest adjustment cavity 52; a headrest adjustment frame 54 is fixedly installed at the bottom of the headrest adjustment rods 53, and the headrest adjustment frame 54 is slidably installed on the side wall of the headrest adjustment cavity 52; a headrest adjustment rack 55 is fixedly installed on one inner wall of the headrest adjustment frame 54; a headrest adjustment shaft 56 is rotatably installed on the rear side wall of the backrest 9; a headrest adjustment handwheel 57 and a headrest adjustment gear 58 are respectively fixedly installed at both ends of the headrest adjustment shaft 56, and the headrest adjustment gear 58 is located in the headrest adjustment cavity 52; the headrest adjustment gear 58 meshes with the headrest adjustment rack 55.

[0030] During specific use, manually rotating the headrest adjustment handwheel 57 can drive the headrest adjustment gear 58 to rotate, and further drive the headrest adjustment frame 54 and the headrest adjustment rods 53 to move up and down in the headrest adjustment cavity 52, so as to adjust the height of the headrest 10 and play a certain protective role for the human head. If a traffic accident occurs, it can reduce the injury to the human head to a certain extent.

[0031] As shown in the attached Figure 7 to the attached Figure 8As shown, the backrest rotation adjustment assembly 12 includes a rotating shaft 59 fixedly installed at the bottom of the backrest 9; backrest rotation adjustment gears 60 are fixedly installed at both ends of the rotating shaft 59; a backrest rotation adjustment rod 61 is rotatably installed between the two armrests 8 and at the rear side of the backrest 9; rotation drive gears 62 are fixedly installed at both ends of the backrest rotation adjustment rod 61; each of the rotation drive gears 62 is meshed with the backrest rotation adjustment gear 60 on the same side thereof; one end of the backrest rotation adjustment rod 61 passes through the armrest 8 to extend outward and is fixedly installed with a backrest rotation adjustment handwheel 63.

[0032] During specific use, manually turning the backrest rotation adjustment hand wheel 63 can drive the backrest rotation adjustment rod 61 and the rotation drive gear 62 to rotate synchronously, and further drive the backrest rotation adjustment gear 60 and the rotation shaft 59 to rotate, thereby realizing rotation adjustment of the angle of the backrest 9 to achieve the most comfortable state for the human back, so as to reduce the fatigue and discomfort caused by sitting for a long time for passengers or drivers.

[0033] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected 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.

[0035] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A car seat frame with a rotational self-locking function, comprising a seat base (1), characterized in that: The seat base (1) is fixedly installed in a vehicle compartment; a rectangular cavity (2) is provided inside the seat base (1); a lifting assembly (3) is installed on the inner side wall of the seat base (1); a rectangular frame (4) is installed inside the seat base (1) and above the lifting assembly (3); a self-locking assembly (5) is slidably installed on the inner side wall of the rectangular frame (4); an adjustment assembly (6) is installed on the side wall of the rectangular frame (4); a seat cushion (7) is installed above the rectangular frame (4); armrests (8) are fixedly installed on the left and right sides of the seat cushion (7); a backrest (9) is rotatably installed between the two armrests (8) and at the rear side of the seat cushion (7); a headrest (10) is installed on the top of the backrest (9); a headrest adjustment assembly (11) is installed in the backrest (9); and a backrest rotation adjustment assembly (12) is installed between the two armrests (8) and at the rear side of the backrest (9).

2. The automobile seat frame with a rotation self-locking function according to claim 1, characterized in that: The lifting assembly (3) comprises a lifting slot (13) vertically opened in the middle of the left and right inner walls of the seat base (1); a lifting plate (14) is slidably installed in the two lifting slots (13); a limit rod (15) is fixedly installed in the middle of each lifting plate (14) by screws, and the limit rod (15) is installed horizontally; a lifting limit slot (16) is opened at both ends of each limit rod (15); a lifting shaft (17) is symmetrically and rotatably installed between the left and right inner walls of the seat base (1); a lifting drive plate (18) is fixedly installed at both ends of each lifting shaft (17); and each lifting drive plate (18) is A lifting drive block (19) is fixedly installed at the center of the seat base (1); the two lifting drive blocks (19) on the same side are respectively located in the two lifting limit grooves (16) of the limit rod (15) on the same side; the two lifting drive plates (18) on the same side are arranged in an arc shape close to the lifting plate (14); one end of the two lifting shafts (17) penetrates the seat base (1) and extends outwardly to be fixedly installed with a synchronous wheel (20); a synchronous belt (21) is provided on the outer sleeve of the two synchronous wheels (20); the other end of one of the lifting shafts (17) penetrates the side wall of the seat base (1) and extends outwardly, and a lifting adjustment wheel (22) is fixedly installed at the end of the extended end.

3. The automobile seat frame with a rotation self-locking function according to claim 2, characterized in that: Two groups of lifting slots (23) are symmetrically provided on the left and right inner walls of the seat base (1); each group of the lifting slots (23) is provided with two and are arranged on the same side; the rectangular frame (4) is slidably installed in the lifting slots (23); and a baffle (24) is fixedly installed in the middle of the outer wall of the rectangular frame (4).

4. The automobile seat frame with a rotation self-locking function according to claim 1, characterized in that: The self-locking assembly (5) includes a U-shaped frame (25) slidably mounted on the inner walls of the front and rear sides of the rectangular frame (4); a self-locking frame (26) is fixedly mounted on the left inner wall of the U-shaped frame (25); a self-locking push rod (27) is installed through the right side wall of the self-locking frame (26) on the right side; a self-locking block (28) is fixedly mounted at the left end of the self-locking push rod (27) and inside the self-locking frame (26); self-locking limit plates (29) are fixedly mounted on the front and rear sides of the bottom of the self-locking block (28); self-locking limit grooves (30) are formed at the bottoms of the two self-locking limit plates (29); two self-locking plates (31) are symmetrically and vertically mounted at the bottom of the self-locking frame (26); a self-locking shaft (32) is fixedly mounted between the two self-locking plates (31); a self-locking hook (33) is rotatably mounted on the self-locking shaft (32) and between the two self-locking limit plates (29); self-locking limit blocks (34) are fixedly mounted on the front and rear side walls at the left end of the self-locking hook (33); the two self-locking limit blocks (34) are respectively located in their corresponding self-locking limit grooves (30); a self-locking rod (35) is fixedly mounted in the middle of the left side wall of the self-locking frame (26); a self-locking spring (36) is sleeved on the self-locking rod (35); the two ends of the self-locking spring (36) are respectively fixedly connected to the self-locking frame (26) and the self-locking block (28); a self-locking cavity (37) is formed inside the self-locking push rod (27), and the self-locking rod (35) penetrates through the self-locking block and extends into the self-locking cavity (37); a special-shaped self-locking groove (38) is formed on the upper end surface of the self-locking block (28); a self-locking limit rod (39) is rotatably mounted on the left side of the upper end surface of the self-locking frame (26); a limit slider (40) is fixedly mounted at the bottom of the right end of the self-locking limit rod (39); the limit slider (40) is located in the special-shaped self-locking groove (38).

5. The automobile seat frame with rotation self-locking function according to claim 4, characterized in that: The adjusting assembly (6) includes an adjusting rod (41) rotatably mounted on the right side wall of the rectangular frame (4); adjusting handwheels (42) and adjusting gears (43) are respectively fixedly mounted at both ends of the adjusting rod (41), and the adjusting gear (43) is located inside the rectangular frame (4); adjusting slide bars (44) are fixedly mounted on the outer walls of the front and rear sides of the U-shaped frame (25); adjusting chutes (45) are horizontally formed on the inner walls of the front and rear sides of the rectangular frame (4); the U-shaped frame (25) is slidably mounted in the adjusting chutes (45) through the two adjusting slide bars (44); an adjusting rack (46) is fixedly mounted on the upper end surface of the right adjusting slide bar (44), and the adjusting rack (46) meshes with the adjusting gear (43).

6. The automobile seat frame with rotation self-locking function according to claim 5, characterized in that: Two limiting sliding grooves (47) are symmetrically formed at the bottom of the cushion (7); limiting sliding strips (48) are fixedly installed on the front and rear sides of the upper end surface of the U-shaped frame (25); the U-shaped frame (25) is slidably installed in the limiting sliding grooves (47) at the bottom of the cushion (7) through the limiting sliding strips (48).

7. The automobile seat frame with a rotation self-locking function according to claim 6, characterized in that: A stop block (49) is fixedly installed at the bottom of the cushion (7); a hook (50) is fixedly installed at the center of the bottom of the stop block (49); a plurality of limiting springs (51) are fixedly installed on one side of the stop block (49) away from the U-shaped frame (25); the other ends of the limiting springs (51) are fixedly connected to the rectangular frame (4).

8. The automobile seat frame with a rotation self-locking function according to claim 1, characterized in that: The headrest adjustment assembly (11) includes a headrest adjustment cavity (52); two headrest adjustment rods (53) are fixedly installed at the bottom of the headrest (10); the lower ends of the headrest adjustment rods (53) are located in the headrest adjustment cavity (52); a headrest adjustment frame (54) is fixedly installed at the bottom of the headrest adjustment rods (53), and the headrest adjustment frame (54) is slidably installed on the side wall of the headrest adjustment cavity (52); a headrest adjustment rack (55) is fixedly installed on one inner wall of the headrest adjustment frame (54); a headrest adjustment shaft (56) is rotatably installed on the rear side wall of the backrest (9); a headrest adjustment handwheel (57) and a headrest adjustment gear (58) are respectively fixedly installed at both ends of the headrest adjustment shaft (56), and the headrest adjustment gear (58) is located in the headrest adjustment cavity (52); the headrest adjustment gear (58) meshes with the headrest adjustment rack (55).

9. The automobile seat frame with a rotation self-locking function according to claim 1, characterized in that: The backrest rotation adjustment assembly (12) includes a rotation shaft (59) fixedly installed at the bottom of the backrest (9); backrest rotation adjustment gears (60) are fixedly installed at both ends of the rotation shaft (59); a backrest rotation adjustment rod (61) is rotatably installed between the two armrests (8) and behind the backrest (9); rotation drive gears (62) are fixedly installed at both ends of the backrest rotation adjustment rod (61); each rotation drive gear (62) meshes with the backrest rotation adjustment gear (60) on its same side; one end of the backrest rotation adjustment rod (61) penetrates through the armrest (8) and extends outward and is fixedly installed with a backrest rotation adjustment handwheel (63).

Images