CN110723043A - Motor vehicle safety seat based on hydraulic transmission and control method thereof - Google Patents
Motor vehicle safety seat based on hydraulic transmission and control method thereof Download PDFInfo
- Publication number
- CN110723043A CN110723043A CN201910909882.6A CN201910909882A CN110723043A CN 110723043 A CN110723043 A CN 110723043A CN 201910909882 A CN201910909882 A CN 201910909882A CN 110723043 A CN110723043 A CN 110723043A
- Authority
- CN
- China
- Prior art keywords
- headrest
- piston
- assembly
- piston rod
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 239000003921 oil Substances 0.000 claims description 132
- 239000010720 hydraulic oil Substances 0.000 claims description 57
- 230000033001 locomotion Effects 0.000 claims description 55
- 238000001125 extrusion Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims 1
- 206010071366 Post-traumatic neck syndrome Diseases 0.000 abstract description 5
- 208000021567 Whiplash injury Diseases 0.000 abstract description 5
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/888—Head-rests with arrangements for protecting against abnormal g-forces, e.g. by displacement of the head-rest
Abstract
The invention provides a motor vehicle safety seat based on hydraulic transmission and a control method thereof, relating to the field of motor vehicle safety and comprising a headrest and a backrest framework assembly; the lower part of the headrest is supported by one end of a headrest guide rod, and the other end of the headrest guide rod is fixedly arranged in a hollow cylinder on the headrest guide sleeve; the headrest guide sleeve can slide up and down or rotate along the guide sleeve bracket; when the inclination angle of the backrest and the inclination angle of the cushion are increased or decreased, the height and the forward inclination angle of the headrest are automatically adjusted, so that when a rear-end collision occurs to the motor vehicle, the 'excellent' headrest is always positioned at the optimal spatial position, and the capability of the headrest for avoiding whiplash injury of the neck of a passenger is always kept at an 'excellent' level.
Description
Technical Field
The invention relates to the field of motor vehicle safety, in particular to a motor vehicle safety seat based on hydraulic transmission and a control method thereof.
Background
The headrest of the motor vehicle seat not only provides better riding comfort for the passenger, but also plays more important roles in providing support and backward limit for the head of the passenger.
In a rear-end collision of a motor vehicle, the upper body of the occupant moves rearward due to the collision inertia force. If the spatial position of the headrest is not good in the process, for example, if the horizontal distance between the front surface of the headrest and the back of the head of the passenger is large in the horizontal direction; or in the vertical direction, the upper surface of the headrest is lower than the top of the head of the passenger; the backward displacement of the head of the passenger is larger than that of the chest, and the whiplash injury of the neck is easily caused.
Generally, when in the horizontal direction, the horizontal distance between the front surface of the headrest and the rear of the head of the occupant is between 0 and 4 cm; meanwhile, when the upper surface of the headrest exceeds the top of the head of a passenger in the vertical direction, the capability of the headrest for avoiding whiplash injury of the neck of the passenger is in an 'excellent' grade, and the headrest is called as an 'excellent' headrest.
However, the spatial position of most of the existing motor vehicle seat headrests cannot be automatically changed along with the changes of the spatial position of the backrest and the spatial position of the seat cushion, so that when a passenger adjusts the inclination angle of the backrest (the included angle between the transverse central plane of the backrest and the floor of the vehicle body) and the inclination angle of the seat cushion (the included angle between the transverse central plane of the seat cushion and the floor of the vehicle body), the spatial position of the 'excellent' headrest often changes (for example, the inclination angle of the backrest increases, which causes the headrest to be displaced backwards and downwards, and the inclination angle of the seat cushion increases, which causes the top of the head of the passenger to exceed the upper surface of the headrest), and the injury of the neck.
Disclosure of Invention
In view of the above situation, the invention provides a motor vehicle safety seat which is based on hydraulic transmission and can automatically adjust the spatial position of a headrest along with the change of the inclination angle of a backrest and the inclination angle of a cushion, so that the excellent headrest is always located at the optimal spatial position (the horizontal distance between the front surface of the headrest and the back part of a passenger is between 0 and 4cm in the horizontal direction, and meanwhile, the upper surface of the headrest exceeds the top of the passenger in the vertical direction), and the whiplash injury of the neck of the passenger is effectively avoided.
The technical purpose is achieved through the following technical scheme.
A motor vehicle safety seat based on hydraulic transmission comprises a headrest and a backrest framework assembly; the lower part of the headrest is supported by one end of a headrest guide rod, and the other end of the headrest guide rod is fixedly arranged in a hollow cylinder on the headrest guide sleeve; the headrest guide sleeve can slide up and down or rotate along the guide sleeve bracket;
the middle part of the headrest guide sleeve is of a tooth-shaped structure, a bulge is arranged below the middle of the tooth-shaped structure, and two ends of the tooth-shaped structure are vertically and upwardly provided with a first hollow cylinder respectively; the guide sleeve bracket is of a door-shaped structure, wherein a second hollow cylinder is arranged above the horizontal direction of the door-shaped structure, shaft sleeves are arranged on vertical rods on the left side and the right side, and the first hollow cylinder penetrates through the second hollow cylinder;
the backrest framework assembly comprises a left longitudinal beam and a right longitudinal beam, a transverse circular shaft A and a transverse circular shaft B are respectively arranged at the positions of the left longitudinal beam and the right longitudinal beam at the same height and are respectively supported by bearings, wherein the transverse circular shaft B is sleeved with one end of a cylindrical gear A, a shaft sleeve and a hydraulic cylinder assembly D support, and the transverse circular shaft A is sleeved with the other end of the shaft sleeve and the hydraulic cylinder assembly D support; the hydraulic cylinder assembly D is fixed on the hydraulic cylinder assembly D support, and the headrest guide sleeve and the guide sleeve support rotate under the drive of the cylindrical gear A so as to drive the headrest to rotate; and a piston rod D of the hydraulic cylinder assembly D is fixedly provided with a hydraulic cylinder assembly E, and the piston rod E of the hydraulic cylinder assembly E can push the protrusion to move up and down.
Further, the cylindrical gear A is meshed with a toothed piston rod C of the hydraulic cylinder assembly C, and the linear motion of the toothed piston rod C is converted into the circular motion of the cylindrical gear A.
Furthermore, the safety seat also comprises a cushion framework assembly and a base; install the cushion pivot on the base, install the rotation support in the cushion pivot, when adjusting cushion skeleton assembly, cushion skeleton assembly can compress tightly or loosen the rotation support to make the epaxial cylindrical gear C circular motion of cushion commentaries on classics, cylindrical gear C moves with the tooth piston rod A on the pneumatic cylinder assembly A, thereby compresses the hydraulic oil in the cylinder body A.
Furthermore, the tail ends of the left longitudinal beam and the right longitudinal beam are respectively and fixedly connected with one ends of a left connecting plate and a right connecting plate, the other ends of the left connecting plate and the right connecting plate are respectively connected with the upper ends of a left connecting assembly and a right connecting assembly, and the lower ends of the left connecting assembly and the right connecting assembly are fixedly connected with the left side and the right side of the base; the left connecting assembly and the right connecting assembly are provided with backrest rotating shafts through bearings, the backrest rotating shafts are provided with bevel gears A, the bevel gears A are meshed with the bevel gears B, the bevel gears B are installed at one ends of the vertical circular shafts, cylindrical gears B are installed at the other ends of the vertical circular shafts, and the cylindrical gears B can be meshed with the piston rods B with teeth to convert circular motion into linear motion.
According to the control method of the motor vehicle safety seat based on hydraulic transmission, when hydraulic oil flows between the hydraulic cylinder assembly A and the hydraulic cylinder assembly D, the mode that a headrest moves upwards or downwards is adjusted:
mode of headrest upward movement:
adjusting a cushion frame assembly mode A: when the cushion framework assembly rotates upwards relative to the rear end of the base, the cushion rotating shaft rotates to drive the cylindrical gear C to rotate clockwise, the cylindrical gear C is meshed with the toothed piston rod to convert circular motion into linear motion, the toothed piston rod A pushes the piston A, the piston A pushes hydraulic oil in the cylinder body A, under the extrusion of the piston A, the hydraulic oil flows out from an oil outlet on the side face of the rear cylinder cover A, flows into the cylinder body D from an oil inlet on the side face of the rear cylinder cover D after passing through the oil pipe A, the hydraulic pressure is increased to push the piston D, the piston rod D moves upwards in a linear mode, and the piston rod D pushes the hydraulic cylinder assembly E upwards to push the headrest guide sleeve to move upwards, so that the headrest guide rod;
mode of headrest downward movement:
adjusting a cushion frame assembly mode B: when the cushion framework assembly rotates downwards relative to the rear end of the base, the cushion rotating shaft rotates to drive the cylindrical gear C to rotate anticlockwise, the cylindrical gear C is meshed with the toothed piston rod to convert circular motion into linear motion, the toothed piston rod A pulls the piston A, the piston A extrudes hydraulic oil in the cylinder A, under the extrusion of the piston A, the hydraulic oil flows out of an oil outlet on the side face of the front end of the cylinder A, flows into the cylinder D from an oil inlet on the side face of the front end of the cylinder after passing through the oil pipe B, and pushes the piston D to enable the piston rod D to move downwards linearly; and the piston rod D pulls the hydraulic cylinder assembly E to move downwards, so that the headrest guide sleeve is pulled to move downwards, and the headrest guide rod and the headrest move downwards.
According to the control method of the motor vehicle safety seat based on hydraulic transmission, when hydraulic oil flows among the hydraulic cylinder assembly B, the hydraulic cylinder assembly C and the hydraulic cylinder assembly E, the mode that the headrest moves forwards or backwards, upwards or downwards is adjusted:
when the backrest framework assembly is adjusted backwards, the backrest rotating shaft drives the bevel gear A to rotate clockwise, the bevel gear A transmits power to the bevel gear B, and the bevel gear B rotates anticlockwise, so that the vertical circular shaft rotates anticlockwise, and the cylindrical gear B is driven to rotate anticlockwise; the cylindrical gear B transmits circular motion to a rack end of a piston rod B with teeth, so that the piston rod B with teeth linearly moves rightwards, the piston rod B with teeth pulls the piston B to linearly move rightwards, the piston B extrudes hydraulic oil in the cylinder body A, the hydraulic oil flows out from an oil outlet on the side face of the front end of the cylinder body B, passes through an oil pipe C and flows into the cylinder body C from an oil inlet on the side face of a rear end cover C; hydraulic oil in the cylinder body C pushes the piston C to drive the toothed piston rod C to move linearly upwards, the toothed piston rod C transmits the linear motion to the cylindrical gear A, so that the cylindrical gear A rotates anticlockwise, the cylindrical gear A drives the transverse circular shaft B to rotate anticlockwise around the bearing B, and meanwhile, the transverse circular shaft A rotates anticlockwise around the bearing A, so that the guide sleeve bracket and the hydraulic cylinder assembly D rotate forwards, and the headrest guide sleeve, the headrest guide rod, the headrest and the hydraulic cylinder assembly E rotate forwards;
meanwhile, in the upward linear motion of the piston C, hydraulic oil above the piston C in the cylinder C is extruded, flows out from an oil outlet on the side face of the front end of the cylinder C, passes through an oil pipe D, and flows into the cylinder E from an oil inlet on the side face of the rear end cover E; the hydraulic oil pushes the piston E and the piston rod E to move linearly upwards; the piston rod E pushes the headrest guide sleeve to move upwards, and meanwhile, the headrest guide rod and the headrest move upwards;
when the backrest framework assembly is adjusted forwards, the backrest rotating shaft drives the bevel gear A to rotate anticlockwise, the bevel gear A transmits power to the bevel gear B, and the bevel gear B rotates clockwise, so that the vertical circular shaft rotates clockwise, and the cylindrical gear B is driven to rotate clockwise; the cylindrical gear B transmits the circular motion to the rack end of the piston rod B with teeth, so that the piston rod B with teeth linearly moves leftwards, the piston rod B with teeth pushes the piston B to linearly move leftwards, and the piston B extrudes hydraulic oil positioned on the left side of the piston B in the cylinder body B; under the extrusion of the piston B, hydraulic oil flows out of an oil outlet on the side surface of the rear cylinder cover B, passes through an oil pipe E and flows into the cylinder body E from an oil inlet on the side surface of the front end of the cylinder body E; the hydraulic oil pushes the piston E and the piston rod E to move downwards; the piston rod E pulls the headrest guide sleeve to move downwards, and meanwhile, the headrest guide rod and the headrest move downwards;
meanwhile, in the downward movement process of the piston E, hydraulic oil positioned below the piston E in the cylinder body E is extruded, flows out of an oil outlet on the side face of the rear cylinder cover E, passes through an oil pipe D, and flows into the cylinder body C from an oil inlet on the side face of the front end of the cylinder body C; the hydraulic oil pushes the piston C and the piston rod C to move linearly downwards; the piston rod C with teeth transmits the linear motion times to the cylindrical gear A, so that the cylindrical gear A rotates clockwise; the cylindrical gear A drives the transverse round shaft B to rotate clockwise, and meanwhile, the transverse round shaft A rotates clockwise, so that the guide sleeve bracket and the hydraulic cylinder assembly D rotate backwards, and the headrest guide sleeve, the headrest guide rod, the headrest and the hydraulic cylinder assembly E rotate backwards.
The invention has the beneficial effects that:
the motor vehicle safety seat based on hydraulic transmission can automatically adjust the height and the forward inclination angle of the headrest when the inclination angle of the backrest and the inclination angle of the cushion are increased or decreased based on a hydraulic transmission mechanism, so that the excellent headrest is always positioned at the optimal spatial position when a rear-end collision happens to a motor vehicle, and the capability of the headrest for avoiding whiplash injury of the neck of a passenger is always kept at the excellent grade
Drawings
FIG. 1 is a schematic structural diagram A of the present invention;
FIG. 2 is a schematic structural diagram B of the present invention;
FIG. 3 is a schematic view of the structure of the base, seat cushion frame assembly, etc. of the present invention;
FIG. 4 is a schematic structural diagram of a hydraulic cylinder assembly A, a hydraulic cylinder assembly B, a hydraulic cylinder assembly C, a hydraulic cylinder assembly D, a hydraulic cylinder assembly E, an oil pipe A, an oil pipe B, an oil pipe C, an oil pipe D and an oil pipe E in the invention;
fig. 5 is a schematic structural view of the headrest guide sleeve;
FIG. 6 is a schematic view of the guide sleeve holder;
FIG. 7 is a schematic structural diagram of a piston rod A with teeth and a piston A;
FIG. 8 is a schematic structural view of a piston rod B with teeth and a piston B with teeth;
fig. 9 is a schematic structural view of a toothed piston rod C and a piston C;
fig. 10 is a schematic structural view of a piston rod D and a piston D;
fig. 11 is a schematic structural view of the piston rod E and the piston E.
Reference numerals:
1. a headrest; 2. a headrest guide; 3. a headrest guide sleeve; 3-1 tooth-shaped structure; 3-2 a first hollow cylindrical shape; 3-3 of bulges; 4. a guide sleeve bracket; 4-1 second hollow cylinder; 4-2 shaft sleeves; 5. a backrest frame assembly; 5-1, a left longitudinal beam; 5-2, a right longitudinal beam; 5-3, an upper cross beam; 6-1, a left connection assembly; 6-2, right connecting assembly; 6-3, a left connecting plate; 6-4, a right connecting plate; 7. a cushion frame assembly; 7-1, a peripheral framework; 7-2, a rear cross beam; 7-3, rotating the bracket A; 7-4, rotating the bracket B; 8. a base; 9. a transverse circular axis A; 10. a transverse circular shaft B; 11. a bearing A; 12. a bearing B; 13. a cylindrical gear A; 14. a beam A; 15. a cross beam B; 16. a backrest rotation shaft; 17. a vertical round shaft; 18. a bevel gear A; 19. a bevel gear B; 20. a cylindrical gear B; 21. a bearing C; 22. a bearing D; 23. a cushion rotating shaft; 24. a cylindrical gear C; 25. a bearing E; 26. a bearing F; 27. a hydraulic cylinder assembly A; 27-1, cylinder A; 27-2, a toothed piston rod a; 27-3, piston A; 27-4, a rear end cover A; 27-5, a bracket A; 28. a hydraulic cylinder assembly B; 28-1 and a cylinder body B; 28-2, a toothed piston rod B; 28-3, piston B; 28-4, a rear end cover B; 28-5, a bracket B; 29. a hydraulic cylinder assembly C; 29-1 and a cylinder body C; 29-2, a toothed piston rod C; 29-3, piston C; 29-4, a rear end cover C; 29-5, bracket C; 30. a hydraulic cylinder assembly D; 30-1 and a cylinder body D; 30-2, a piston rod D; 30-3, piston D; 30-4, a rear end cover D; 30-5, a bracket D; 31. a hydraulic cylinder assembly E; 31-1 and a cylinder body E; 31-2 piston rod E; 31-3, a piston E; 31-4, a rear end cover E; 31-5, a bracket E; 32. an oil pipe A; 33. an oil pipe B; 34. an oil pipe C; 35. an oil pipe D; 36. and (7) an oil pipe E.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following first describes in detail embodiments according to the present invention with reference to the accompanying drawings
As shown in the figures 1 to 11, the device of the invention comprises a headrest 1, a headrest guide rod 2, a headrest guide sleeve 3, a guide sleeve bracket 4, a backrest framework assembly 5, a left connecting plate 6-3, a right connecting plate 6-4, a left connecting assembly 6-1, a right connecting assembly 6-2, a cushion framework assembly 7, a base 8, a transverse circular shaft A9, a transverse circular shaft B10, a bearing A11, a bearing B12, a cylindrical gear A13, a cross beam A14, a cross beam B15, a backrest rotating shaft 16, a vertical circular shaft 17, a bevel gear A18, a bevel gear B19, a cylindrical gear B20, a bearing C21, a bearing D22, a cushion rotating shaft 23, a cylindrical gear C24, a bearing E25, a bearing F26, a hydraulic cylinder assembly A27, a hydraulic cylinder assembly B28, a hydraulic cylinder assembly C29, a hydraulic cylinder assembly D30, a hydraulic cylinder assembly E31, a hydraulic cylinder, Oil line A32, oil line B33, oil line C34, oil line D35, and oil line E36.
The headrest 1 is fixedly connected with a headrest guide rod 2, and the headrest guide rod 2 is inserted into a headrest guide sleeve 3. The headrest guide sleeve 3 is inserted into the guide sleeve support 4, and the guide sleeve support 4 plays a role in guiding the upward and downward movement of the headrest guide sleeve 3.
The middle part of the headrest guide sleeve 3 is of a tooth-shaped structure 3-1, a bulge 3-3 is arranged below the middle part of the tooth-shaped structure, and two ends of the tooth-shaped structure 3-1 are respectively provided with a first hollow cylinder 3-2 vertically upwards; the guide sleeve support 4 is of a door-shaped structure, wherein a second hollow cylinder 4-1 is arranged above the horizontal side of the door-shaped structure, shaft sleeves 4-2 are arranged on vertical rods on the left side and the right side, and the first hollow cylinder 3-2 penetrates through the second hollow cylinder 4-1.
The backrest framework assembly 5 comprises a left longitudinal beam 5-1, a right longitudinal beam 5-2 and an upper cross beam 5-3, and the cushion framework assembly 7 comprises a peripheral framework 7-1, a rear cross beam 7-2, a rotating support A7-3 and a rotating support B7-4.
The bearing A11 and the bearing B12 are fixedly arranged at the upper ends of the left longitudinal beam 5-1 and the right longitudinal beam 5-2 respectively, and the bearing A11 and the bearing B12 are coaxial in the horizontal direction. The left end of the transverse round shaft A9 is inserted into the bearing A11, and the right end of the transverse round shaft A9 is fixedly connected with the guide sleeve support 4. The right end of the transverse round shaft B10 is inserted into the bearing A12, and the left end of the transverse round shaft B10 is fixedly connected with the guide sleeve bracket 4. The transverse round shaft A9 can rotate around a bearing A11, and the transverse round shaft B10 can rotate around a bearing B12, so that the guide sleeve bracket 4 can rotate around the upper ends of the left longitudinal beam 5-1 and the right longitudinal beam 5-2 in a front-back mode.
The cylindrical gear A13 is fixedly arranged at the left end of the transverse circular shaft B10.
The cross beam A14 and the cross beam B15 are transversely and fixedly arranged at the lower ends of the left longitudinal beam 5-1 and the right longitudinal beam 5-2, and the cross beam A14 is positioned above the cross beam B15. The bearing C21 is fixedly arranged in the middle of the beam A14, and the bearing D22 is fixedly arranged in the middle of the beam A15. The upper end of the vertical round shaft 17 is inserted into the bearing C21, the middle end of the vertical round shaft 17 is inserted into the bearing D22, and the vertical round shaft 17 can rotate around the bearing C21 and the bearing D22. The cylindrical gear B20 is fixedly arranged at the upper end of the vertical round shaft 17, the bevel gear B19 is fixedly arranged at the lower end of the vertical round shaft 17, and the bevel gear A18 is fixedly arranged in the middle of the backrest rotating shaft 16. The vertical circular shaft 17 is perpendicular to the backrest rotating shaft 16, and the bevel gear A18 is meshed with the bevel gear B19.
The bearing E25 and the bearing F26 are respectively and fixedly arranged at the left side and the right side of the rear end of the base 8, and the horizontal directions of the bearing E25 and the bearing F26 are coaxial. The left and right ends of the cushion rotating shaft 23 are respectively inserted into the bearing E25 and the bearing F26, and the cushion rotating shaft 23 can rotate around the bearing E25 and the bearing F26. The rear cross beam 7-2 is transversely and fixedly arranged at the rear end of the seat cushion framework assembly 7, the upper ends of the rotating bracket A7-3 and the rotating bracket B7-4 are fixedly arranged on the rear cross beam 7-2, and the lower ends of the rotating bracket A7-3 and the rotating bracket B7-4 are fixedly arranged on the seat cushion rotating shaft 23, so that the seat cushion rotating shaft 23 and the seat cushion framework assembly 7 can rotate up and down around the rear end of the base 8.
The cylindrical gear C24 is fixedly arranged in the middle of the cushion rotating shaft 23.
The left connecting assembly 6-1 and the right connecting assembly 6-2 are respectively positioned at the left side and the right side of the device. The front end of the left connecting assembly 6-1 is fixedly connected with the left side of the rear end of the base 8, and the front end of the right connecting assembly 6-2 is fixedly connected with the right side of the rear end of the base 8. The lower ends of a left longitudinal beam 5-1 and a right longitudinal beam 5-2 of the backrest framework assembly 5 are respectively and fixedly connected with the upper ends of a left connecting plate 6-3 and a right connecting plate 6-4. The lower ends of the left connecting plate 6-3 and the right connecting plate 6-4 are respectively positioned on the left side of the upper end of the left connecting assembly 6-1 and the right side of the upper end of the right connecting assembly 6-2. The upper ends of the left connecting assembly 6-1 and the right connecting assembly 6-2 are respectively provided with a round hole, the two round holes are coaxial in the horizontal direction, and bearings are respectively arranged at the two round holes. The backrest rotating shaft 16 penetrates through bearings at round holes at the upper ends of the left connecting assembly 6-1 and the right connecting assembly 6-2, and the left end and the right end of the backrest rotating shaft 16 are respectively fixed with the lower ends of the left connecting plate 6-3 and the right connecting plate 6-4, so that the backrest rotating shaft 16, the left connecting plate 6-3, the right connecting plate 6-4 and the backrest framework assembly 5 can rotate around the upper ends of the left connecting assembly 6-1 and the right connecting assembly 6-2 in a front-back mode.
The hydraulic cylinder assembly A27 comprises a cylinder body A27-1, a toothed piston rod A27-2, a piston A27-3, a rear cylinder cover A27-4 and a support A27-5, wherein one end, far away from the piston A27-3, of the toothed piston rod A27-3 is processed into a rack and meshed with a cylindrical gear C24 with the same modulus, an oil inlet and outlet is formed in the side face of the rear end cover A27-4 and connected with an oil pipe A32, and an oil inlet and outlet is formed in the side face of the front end of the cylinder body A27-1 and connected with an oil pipe A33. The hydraulic cylinder assembly B28 comprises a cylinder body B28-1, a toothed piston rod B28-2, a piston B28-3, a rear end cover B28-4 and a support B28-5, wherein one end, far away from the piston B28-3, of the toothed piston rod B28-2 is processed into a rack and meshed with a cylindrical gear B20 with the same modulus, an inlet and outlet opening is formed in the side face of the rear end cover B28-4 and connected with an oil pipe E36, and an inlet and outlet oil opening is formed in the side face of the front end of the cylinder body B28-1 and connected with an oil pipe C34. The hydraulic cylinder assembly C29 comprises a cylinder body C29-1, a toothed piston rod C29-2, a piston C29-3, a rear end cover C29-4 and a support C29-5, wherein the toothed piston rod C29-2 and one end far away from the piston C29-3 are processed into racks and meshed with a cylindrical gear A13 with the same modulus, an oil inlet and an oil outlet are formed in the side face of the rear end cover C29-4 and connected with an oil pipe C34, and an oil inlet and an oil outlet are formed in the side face of the front end of the cylinder body C29-1 and connected with an oil pipe D35. The hydraulic cylinder assembly D30 comprises a cylinder body D30-1, a piston rod D30-2, a piston D30-3, a rear end cover D30-4 and a support D30-5, an oil inlet and an oil outlet are formed in the side face of the rear end cover D30-4 and connected with an oil pipe A32, and an oil inlet and an oil outlet are formed in the side face of the front end of the cylinder body D30-1 and connected with an oil pipe B33. The hydraulic cylinder assembly E31 comprises a cylinder body E31-1, a piston rod E31-2, a piston E31-3 and a rear end cover E31-4, wherein an oil inlet and an oil outlet are formed in the side face of the rear end cover E31-4 and are connected with an oil pipe D35, and an oil inlet and an oil outlet are formed in the side face of the front end of the cylinder body E31-1 and are connected with an oil pipe E36. The top end of the piston rod D30-2 is fixedly connected with the bottom of the rear end cover E31-4, so that the piston rod D30-2 is connected with the hydraulic cylinder assembly E31.
The upper end of the piston rod E31-2 is fixedly connected with the headrest guide sleeve 3.
The side oil inlet and outlet of the rear end cover A27-4 is connected with the side oil inlet and outlet of the rear end cover D30-4 through an oil pipe A32, and the side oil inlet and outlet of the front end of the cylinder D30-1 is connected with the side oil inlet and outlet of the front end of the cylinder A27-1 through an oil pipe B33. The hydraulic cylinder assembly A27, the hydraulic cylinder assembly D30, the oil pipe A32 and the oil pipe B33 form a closed hydraulic loop, and hydraulic oil is filled in the hydraulic loop.
The side oil inlet and outlet of the front end of the cylinder B28-1 is connected with the side oil inlet and outlet of the rear end cover C29-4 through an oil pipe C34, the side oil inlet and outlet of the front end of the cylinder C29-1 is connected with the side oil inlet and outlet of the rear end cover E31-4 through an oil pipe D35, and the side oil inlet and outlet of the front end of the cylinder E31-4 is connected with the side oil inlet and outlet of the rear end cover B28-4 through an oil pipe E36. The hydraulic cylinder assembly B28, the hydraulic cylinder assembly C29, the hydraulic cylinder assembly E31, the oil pipe C34, the oil pipe D35 and the oil pipe E36 form a closed hydraulic loop, and hydraulic oil is filled in the hydraulic loop.
The support A27-5 is fixedly connected with a cross beam at the front end of the cushion framework assembly 7, and the cylinder body A27-1 is fixedly connected with the support A27-5, so that the hydraulic cylinder assembly A27 and the cushion framework assembly 7 move synchronously.
The bracket B28-5 is fixedly connected with the left ends of the beam A14 and the beam B15, and the cylinder body B28-1 is fixedly connected with the bracket B28-5.
The support C29-5 is fixedly connected with the middle parts of the left longitudinal beam 5-1 and the right longitudinal beam 5-2, and the cylinder body C29-1 is fixedly connected with the support C29-5.
The bracket D30-5 is fixedly connected with the right end of the transverse circular shaft A9 and the left end of the transverse circular shaft B10, and the cylinder body D30-1 is fixedly connected with the bracket D30-5, so that the hydraulic cylinder assembly D30, the transverse circular shaft A9 and the transverse circular shaft B10 move synchronously.
Specifically, one end of a toothed piston rod A, one end of a toothed piston rod B, one end of a toothed piston rod C, one end of a piston rod D and one end of a piston rod E are fixedly connected with the piston A, the piston B, the piston C, the piston D and the piston E respectively.
Specifically, the oil pipe A, the oil pipe B, the oil pipe C, the oil pipe D and the oil pipe E are made of rubber materials, and the shapes of the oil pipes can be bent.
The control method for automatically adjusting the height and the forward-inclined angle of the headrest 1 along with the change of the inclined angle of the backrest framework assembly 6 and the inclined angle of the cushion framework assembly 7 is as follows:
(1) when the cushion frame assembly 7 rotates upward relative to the rear end of the base 8, the cushion rotating shaft 23 is driven to rotate clockwise around the bearing E25 and the bearing F26, and simultaneously, the cylindrical gear C24 rotates clockwise. The cylindrical gear C24 transmits a circular motion to the rack end of the toothed piston rod A27-2, so that the toothed piston rod A27-2 moves linearly forward, and the toothed piston rod A27-2 pushes the piston A27-3 to move linearly forward. The piston A27-3 extrudes hydraulic oil in the cylinder A27-1 and positioned in front of the piston A27-3; under the extrusion of the piston A27-3, hydraulic oil flows out from the oil inlet and outlet on the side surface of the rear cylinder cover A27-4, passes through the oil pipe A32, and flows into the cylinder body D30-1 from the oil inlet and outlet on the side surface of the rear cylinder cover D30-4; the hydraulic oil pushes the piston D30-3 and the piston rod D30-2 to move linearly upwards; the piston rod D30-2 pushes the hydraulic cylinder assembly E31 and the headrest guide sleeve 3 to move upwards, and meanwhile the headrest guide rod 2 and the headrest 1 move upwards. In the process of upward linear motion of the piston D30-3, hydraulic oil in the cylinder D30-1 and above the piston D30-3 is extruded, flows out from the oil inlet and outlet on the front end side of the cylinder D30-1, passes through the oil pipe B33, and flows into the cylinder A27-1 from the oil inlet and outlet on the front end side of the cylinder A27-1.
(2) When the cushion frame assembly 7 rotates downward relative to the rear end of the base 8, the cushion rotating shaft 23 is driven to rotate counterclockwise around the bearing E25 and the bearing F26, and simultaneously, the cylindrical gear C24 rotates counterclockwise. The cylindrical gear C24 transmits a circular motion to the rack end of the toothed piston rod A27-2, so that the toothed piston rod A27-2 moves linearly backward, and the toothed piston rod A27-2 pulls the piston A27-3 to move linearly backward. The piston A27-3 extrudes hydraulic oil in the cylinder A27-1 and behind the piston A27-3; under the extrusion of the piston A27-3, hydraulic oil flows out from the oil inlet and outlet on the front end side of the cylinder A27-1, passes through the oil pipe B33, and flows into the cylinder D30-1 from the oil inlet and outlet on the front end side of the cylinder 30-1; the hydraulic oil pushes the piston D30-3 and the piston rod D30-2 to move linearly downwards; the piston rod D30-2 pulls the hydraulic cylinder assembly E31 and the headrest guide sleeve 3 to move downwards, and meanwhile, the headrest guide rod 2 and the headrest 1 move downwards. In the downward linear motion process of the piston D30-3, hydraulic oil in the cylinder body D30-1 and below the piston D30-3 is extruded, flows out from the oil inlet and outlet on the side surface of the rear cylinder cover D30-4, passes through the oil pipe B33, and flows into the cylinder body A27-1 from the oil inlet and outlet on the side surface of the rear cylinder cover A27-4.
(3) When the backrest framework assembly 7 rotates backwards relative to the upper ends of the left connecting assembly 6-1 and the right connecting assembly 6-2, the backrest rotating shaft 16 is driven to rotate clockwise around the upper ends of the left connecting assembly 6-1 and the right connecting assembly 6-2, and meanwhile, the bevel gear A18 rotates clockwise. Bevel gear a18 transfers motion to bevel gear B19, bevel gear B19 rotates counterclockwise, causing vertical circular shaft 17 to rotate counterclockwise about bearings C21, bearings D22, while cylindrical gear B20 rotates counterclockwise. The spur gear B20 transmits a circular motion to the rack end of the toothed piston rod B28-2, so that the toothed piston rod B28-2 moves linearly to the right, and the toothed piston rod B28-2 pulls the piston B28-3 to move linearly to the right. The piston B28-3 extrudes hydraulic oil in the cylinder A28-1 and positioned on the right side of the piston B28-3; under the extrusion of the piston B28-3, hydraulic oil flows out from an oil inlet and outlet on the side face of the front end of the cylinder B28-1, passes through the oil pipe C34, and flows into the cylinder C29-1 from an oil inlet and outlet on the side face of the rear end cover C29-4; the hydraulic oil pushes the piston C29-3 and the toothed piston rod C29-2 to move linearly upwards; the toothed piston rod C29-2 transmits the linear motion to the cylindrical gear A13, so that the cylindrical gear A13 rotates anticlockwise; the cylindrical gear A13 drives the transverse round shaft B10 to rotate anticlockwise around the bearing B12, and meanwhile, the transverse round shaft A9 rotates anticlockwise around the bearing A11, so that the guide sleeve support 4 and the hydraulic cylinder assembly D30 rotate forwards, and the headrest guide sleeve 3, the headrest guide rod 2, the headrest 1 and the hydraulic cylinder assembly E31 rotate forwards. In the upward linear motion of the piston C29-3, hydraulic oil in the cylinder C29-1 and above the piston C29-3 is extruded, flows out from an oil inlet and outlet on the side surface of the front end of the cylinder C29-1, passes through an oil pipe D35, and flows into the cylinder E31-1 from an oil inlet and outlet on the side surface of the rear end cover E31-4; the hydraulic oil pushes the piston E31-3 and the piston rod E31-2 to move linearly upwards; the piston rod E31-2 pushes the headrest guide sleeve 3 to move upwards, and meanwhile the headrest guide rod 2 and the headrest 1 move upwards. In the process of upward linear motion of the piston E31-3, hydraulic oil in the cylinder E31-1 and above the piston E31-3 is extruded, flows out from the oil inlet and outlet on the side face of the front end of the cylinder E31-1, passes through the oil pipe E36, and flows into the cylinder B28-1 from the oil inlet and outlet on the side face of the rear cylinder cover B28-4.
(4) When the backrest framework assembly 7 rotates forwards relative to the upper ends of the left connecting assembly 6-1 and the right connecting assembly 6-2, the backrest rotating shaft 16 is driven to rotate anticlockwise around the upper ends of the left connecting assembly 6-1 and the right connecting assembly 6-2, and meanwhile, the bevel gear A18 rotates anticlockwise. Bevel gear a18 transfers motion to bevel gear B19, bevel gear B19 rotates clockwise, causing vertical circular shaft 17 to rotate clockwise about bearings C21, D22, while cylindrical gear B20 rotates clockwise. The cylindrical gear B20 transmits a circular motion to the rack end of the toothed piston rod B28-2, so that the toothed piston rod B28-2 moves linearly to the left, and the toothed piston rod B28-2 pushes the piston B28-3 to move linearly to the left. The piston B28-3 extrudes hydraulic oil in the cylinder B28-1 and positioned on the left side of the piston B28-3; under the extrusion of the piston A28-3, hydraulic oil flows out from an oil inlet and outlet on the side surface of the rear cylinder cover B28-4, passes through an oil pipe E36, and flows into the cylinder body E31-1 from an oil inlet and outlet on the side surface of the front end of the cylinder body E31-1; the hydraulic oil pushes the piston E31-3 and the piston rod E31-2 to move downwards; the piston rod E31-2 pulls the headrest guide sleeve 3 to move downwards, and meanwhile, the headrest guide rod 2 and the headrest 1 move downwards. In the downward movement process of the piston E31-3, hydraulic oil in the cylinder body E31-1 and below the piston E31-3 is extruded, flows out from an oil inlet and outlet on the side surface of the rear cylinder cover E31-4, passes through an oil pipe D35, and flows into the cylinder body C29-1 from an oil inlet and outlet on the side surface of the front end of the cylinder body C29-1; the hydraulic oil pushes the piston C29-3 and the piston rod C29-2 to move linearly downwards; the piston rod C29-2 with teeth transmits the linear motion times to the cylindrical gear A13, so that the cylindrical gear A13 rotates clockwise; the cylindrical gear A13 drives the transverse round shaft B10 to rotate clockwise around the bearing B12, and simultaneously the transverse round shaft A9 rotates clockwise around the bearing A11, so that the guide sleeve bracket 4 and the hydraulic cylinder assembly D30 rotate backwards, and the headrest guide sleeve 3, the headrest guide rod 2, the headrest 1 and the hydraulic cylinder assembly E31 rotate backwards. In the downward linear motion process of the piston C29-3, hydraulic oil in the extrusion cylinder body C29-1 and below the piston C29-3 flows out from an oil inlet and outlet on the side surface of the rear cylinder cover C29-4, passes through the oil pipe C34, and flows into the cylinder body B28-1 from an oil inlet and outlet on the side surface of the front end of the cylinder body C28-1.
Specifically, the present invention enables the "excellent" headrest 1 to be always located at the optimum spatial position when the original backrest inclination angle is 100 degrees and the original seat cushion inclination angle is 10 degrees.
Specifically, in the present invention, only when the adjustment range of the backrest inclination angle is 90 to 150 degrees, the height and the forward inclination angle of the headrest 1 are automatically adjusted as the backrest inclination angle is changed; only when the adjusting range of the inclination angle of the seat cushion is 0-25 degrees, the height of the headrest 1 is automatically adjusted along with the change of the inclination angle of the seat cushion.
Specifically, the reference of clockwise rotation and anticlockwise rotation of the cushion rotating shaft 23 and the cylindrical gear C24 is from the left side to the right side of the device of the invention; the cylindrical gear A13, the transverse circular shaft A9, the transverse circular shaft B10 and the bevel gear A18 rotate clockwise and anticlockwise on the basis of the left side to the right side of the device; the reference of the clockwise rotation and the counterclockwise rotation of the bevel gear B19, the vertical circular shaft 17 and the cylindrical gear B20 is from the upper side to the lower side of the device.
Specifically, in step (1), the upward movement stroke of the headrest 1 is determined by the upward rotation angle of the seat cushion frame assembly 7 relative to the rear end of the base 8, and the purpose is as follows: the upper surface of the headrest 1 is made to project beyond the top of the head of the occupant in the vertical direction.
Specifically, in step (2), the downward movement stroke of the headrest 1 is determined by the downward rotation angle of the seat cushion frame assembly 7 relative to the rear end of the base 8, and the purpose is as follows: the head of the occupant is held between the upper surface and the lower surface of the headrest 1.
Specifically, in the step (3), the forward rotation and upward movement stroke of the headrest 1 is determined by the backward rotation angle of the backrest framework assembly 7 relative to the upper ends of the left connecting assembly 6-1 and the right connecting assembly 6-2, and the purpose is as follows: in the horizontal direction, the horizontal distance between the front surface of the headrest 1 and the back of the head of the occupant is made to be between 0 and 4 cm; while the upper surface of the headrest 1 is beyond the top of the occupant in the vertical direction.
Specifically, in the step (4), the rearward and downward movement strokes of the headrest 1 are determined by the rearward rotation angle of the backrest frame assembly 7 relative to the upper ends of the left and right connecting assemblies 6-1 and 6-2, and the purpose is as follows: 1) the front surface of the headrest 1 is prevented from interfering with the back of the head of the occupant; 2) the interference between the upper surface of the headrest 1 and the roof is avoided; 3) the head of the occupant is held between the upper surface and the lower surface of the headrest 1.
It should be noted that the direction indicators of up, down, left, right, front, rear, etc. related to the present invention are consistent with the corresponding up, down, left, right, front, rear, etc. when the motor vehicle is used conventionally.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (6)
1. A motor vehicle safety seat based on hydraulic transmission comprises a headrest (1) and a backrest framework assembly (5); it is characterized in that the preparation method is characterized in that,
the lower part of the headrest (1) is supported by one end of a headrest guide rod (2), and the other end of the headrest guide rod (2) is fixedly arranged in a hollow cylinder (3-2) on the headrest guide sleeve (3); the headrest guide sleeve (3) can slide up and down or rotate along the guide sleeve bracket (4);
the middle part of the headrest guide sleeve (3) is of a tooth-shaped structure (3-1), a bulge (3-3) is arranged below the middle of the tooth-shaped structure, and two ends of the tooth-shaped structure (3-1) are vertically and upwardly provided with a first hollow cylinder (3-2) respectively; the guide sleeve support (4) is of a door-shaped structure, wherein a second hollow cylinder (4-1) is arranged above the horizontal direction of the door-shaped structure, shaft sleeves (4-2) are arranged on vertical rods on the left side and the right side, and the first hollow cylinder (3-2) penetrates through the second hollow cylinder (4-1);
the backrest framework assembly (5) comprises a left longitudinal beam (5-1) and a right longitudinal beam (5-2), a transverse circular shaft A (9) and a transverse circular shaft B (10) are respectively arranged at the positions of the left longitudinal beam (5-1) and the right longitudinal beam (5-2) at the same height, the transverse circular shaft A (9) and the transverse circular shaft B (10) are respectively supported by bearings, a cylindrical gear A (13), a shaft sleeve (4-2) and one end of a hydraulic cylinder assembly D support are sleeved on the transverse circular shaft B (10), and a shaft sleeve (4-2) and the other end of the hydraulic cylinder assembly D support are sleeved on the transverse circular shaft A (9); a hydraulic cylinder assembly D (30) is fixed on the hydraulic cylinder assembly D support, and the headrest guide sleeve (3) and the guide sleeve support (4) rotate under the driving of the cylindrical gear A (13) so as to drive the headrest (1) to rotate; a piston rod D (30-2) of the hydraulic cylinder assembly D (30) is fixedly provided with a hydraulic cylinder assembly E (31), and a piston rod E (31-2) of the hydraulic cylinder assembly E (31) can push the protrusion (3-3) to move up and down.
2. The vehicle safety seat based on hydraulic transmission according to claim 1, wherein the cylindrical gear A (13) is engaged with a toothed piston rod C (29-2) of a hydraulic cylinder assembly C (29) to convert the linear motion of the toothed piston rod C (29-2) into the circular motion of the cylindrical gear A (13).
3. The vehicle safety seat based on hydraulic transmission of claim 1, wherein the safety seat further comprises a cushion frame assembly (7) and a base (8); install cushion pivot (23) on base (8), install the rotation support on cushion pivot (23), when adjusting cushion skeleton assembly (7), cushion skeleton assembly (7) can compress tightly or loosen the rotation support to make cylindrical gear C (24) circular motion on cushion pivot (23), toothed piston rod A (27-2) motion on cylindrical gear C (24) and the pneumatic cylinder assembly A (27), thereby compress the hydraulic oil in cylinder body A (27-1).
4. The motor vehicle safety seat based on hydraulic transmission is characterized in that the tail ends of the left longitudinal beam (5-1) and the right longitudinal beam (5-2) are fixedly connected with one ends of a left connecting plate (6-3) and a right connecting plate (6-4) respectively, the other ends of the left connecting plate (6-3) and the right connecting plate (6-4) are connected with the upper ends of a left connecting assembly (6-1) and a right connecting assembly (6-2) respectively, and the lower ends of the left connecting assembly (6-1) and the right connecting assembly (6-2) are fixedly connected with the left side and the right side of a base (8); the left connecting assembly (6-1) and the right connecting assembly (6-2) are provided with a backrest rotating shaft (16) through bearings, the backrest rotating shaft (16) is provided with a bevel gear A (18), the bevel gear A (18) is meshed with a bevel gear B (19), the bevel gear B (19) is installed at one end of a vertical circular shaft (17), the other end of the vertical circular shaft (17) is provided with a cylindrical gear B (20), and the cylindrical gear B (20) can be meshed with a toothed piston rod B (28-2) to convert circular motion into linear motion.
5. The method for controlling a hydraulically driven motor vehicle safety seat according to claim 3, characterized in that the mode of upward or downward movement of the headrest (1) is adjusted while hydraulic oil flows between the hydraulic cylinder assembly A (27) and the hydraulic cylinder assembly D (30):
mode of headrest upward movement:
adjusting a cushion frame assembly mode A: when the cushion framework assembly (7) rotates upwards relative to the rear end of the base (8), the cushion rotating shaft (23) rotates to drive the cylindrical gear C (24) to rotate clockwise, the cylindrical gear C (24) is meshed with the toothed piston rod (27-2) to convert the circular motion into linear motion, the toothed piston rod A (27-2) pushes the piston A (27-3), the piston A (27-3) extrudes hydraulic oil in the cylinder body A (27-1), the hydraulic oil flows out from the side oil outlet of the rear cylinder cover A (27-4) under the extrusion of the piston A (27-3), flows into the cylinder body D (30-1) from the side oil inlet of the rear cylinder cover D (30-4) after passing through the oil pipe A (32), the hydraulic pressure is increased to push the piston D (30-3), and the piston rod D (30-2) moves upwards linearly, the piston rod D (30-2) pushes the hydraulic cylinder assembly E (31) to move upwards, so that the headrest guide sleeve (3) is pushed to move upwards, and the headrest guide rod (2) and the headrest (1) move upwards;
mode of headrest downward movement:
adjusting a cushion frame assembly mode B: when the cushion framework assembly (7) rotates downwards relative to the rear end of the base (8), the cushion rotating shaft (23) rotates to drive the cylindrical gear C (24) to rotate anticlockwise, the cylindrical gear C (24) is meshed with the toothed piston rod (27-2), circular motion is converted into linear motion, the toothed piston rod A (27-2) pulls the piston A (27-3), the piston A (27-3) extrudes hydraulic oil in the cylinder body A (27-1), under the extrusion of the piston A (27-3), hydraulic oil flows out from an oil outlet on the front end side of the cylinder A (27-1), passes through an oil pipe B (33) and then flows into a cylinder D (30-1) from an oil inlet on the front end side of the cylinder (30-1), the hydraulic oil pushes the piston D (30-3) to enable the piston rod D (30-2) to move linearly downwards; the piston rod D (30-2) pulls the hydraulic cylinder assembly E (31) to move downwards, so that the headrest guide sleeve (3) is pulled to move downwards, and the headrest guide rod (2) and the headrest (1) move downwards.
6. The control method of the hydraulically driven vehicle safety seat according to claim 4, wherein the mode of the headrest (1) moving forward or backward, upward or downward is adjusted while the hydraulic oil flows among the hydraulic cylinder assembly B (28), the hydraulic cylinder assembly C (29) and the hydraulic cylinder assembly E (31):
when the backrest framework assembly (5) is adjusted backwards, the backrest rotating shaft (16) drives the bevel gear A (18) to rotate clockwise, the bevel gear A (18) transmits power to the bevel gear B (19), the bevel gear B (19) rotates anticlockwise, the vertical circular shaft (17) rotates anticlockwise, and the cylindrical gear B (20) is driven to rotate anticlockwise; the cylindrical gear B (20) transmits circular motion to a rack end of a toothed piston rod B (28-2), so that the toothed piston rod B (28-2) moves linearly to the right, the toothed piston rod B (28-2) pulls a piston B (28-3) to move linearly to the right, the piston B (28-3) extrudes hydraulic oil in a cylinder body A (28-1), the hydraulic oil flows out from an oil outlet on the side face of the front end of the cylinder body B (28-1), passes through an oil pipe C (34), and flows into the cylinder body C (29-1) from an oil inlet on the side face of a rear end cover C (29-4); hydraulic oil in the cylinder body C (29-1) pushes the piston C (29-3) to drive the toothed piston rod C (29-2) to move linearly upwards, the toothed piston rod C (29-2) transmits the linear motion to the cylindrical gear A (13), so that the cylindrical gear A (13) rotates anticlockwise, the cylindrical gear A (13) drives the transverse circular shaft B (10) to rotate anticlockwise around the bearing B (12), and meanwhile, the transverse circular shaft A (9) rotates anticlockwise around the bearing A (11), so that the guide sleeve support (4) and the hydraulic cylinder assembly D (30) rotate forwards, and forward rotation of the headrest guide sleeve (3), the headrest guide rod (2), the headrest (1) and the hydraulic cylinder assembly E (31) is realized;
meanwhile, in the upward linear motion of the piston C (29-3), hydraulic oil in the cylinder C (29-1) above the piston C (29-3) is extruded to flow out of an oil outlet on the side face of the front end of the cylinder C (29-1), passes through an oil pipe D (35), and flows into the cylinder E (31-1) from an oil inlet on the side face of the rear end cover E (31-4); the hydraulic oil pushes the piston E (31-3) and the piston rod E (31-2) to move linearly upwards; the piston rod E (31-2) pushes the headrest guide sleeve (3) to move upwards, and meanwhile, the headrest guide rod (2) and the headrest (1) move upwards;
when the backrest framework assembly (5) is adjusted forwards, the backrest rotating shaft (16) drives the bevel gear A (18) to rotate anticlockwise, the bevel gear A (18) transmits power to the bevel gear B (19), and the bevel gear B (19) rotates clockwise, so that the vertical circular shaft (17) rotates clockwise, and the cylindrical gear B (20) is driven to rotate clockwise; the cylindrical gear B (20) transmits circular motion to a rack end of a toothed piston rod B (28-2), so that the toothed piston rod B (28-2) linearly moves leftwards, the toothed piston rod B (28-2) pushes a piston B (28-3) to linearly move leftwards, and the piston B (28-3) extrudes hydraulic oil positioned on the left side of the piston B (28-3) in a cylinder body B (28-1); under the extrusion of a piston B (28-3), hydraulic oil flows out from an oil outlet on the side surface of a rear cylinder cover B (28-4), passes through an oil pipe E (36), and flows into a cylinder body E (31-1) from an oil inlet on the side surface of the front end of the cylinder body E (31-1); the hydraulic oil pushes the piston E (31-3) and the piston rod E (31-2) to move downwards; the piston rod E (31-2) pulls the headrest guide sleeve (3) to move downwards, and meanwhile, the headrest guide rod (2) and the headrest (1) move downwards;
meanwhile, in the downward movement process of the piston E (31-3), hydraulic oil which is positioned below the piston E (31-3) in the extrusion cylinder body E (31-1) flows out of an oil outlet on the side surface of the rear cylinder cover E (31-4), passes through an oil pipe D (35), and flows into the cylinder body C (29-1) from an oil inlet on the side surface of the front end of the cylinder body C (29-1); the hydraulic oil pushes the piston C (29-3) and the piston rod C (29-2) to move linearly downwards; the piston rod C (29-2) with teeth transmits linear motion times to the cylindrical gear A (13), so that the cylindrical gear A (13) rotates clockwise; the cylindrical gear A (13) drives the transverse circular shaft B (10) to rotate clockwise, and meanwhile, the transverse circular shaft A (9) rotates clockwise, so that the guide sleeve support (4) and the hydraulic cylinder assembly D (30) rotate backwards, and the headrest guide sleeve (3), the headrest guide rod (2), the headrest (1) and the hydraulic cylinder assembly E (31) rotate backwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910909882.6A CN110723043B (en) | 2019-09-25 | 2019-09-25 | Motor vehicle safety seat based on hydraulic transmission and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910909882.6A CN110723043B (en) | 2019-09-25 | 2019-09-25 | Motor vehicle safety seat based on hydraulic transmission and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110723043A true CN110723043A (en) | 2020-01-24 |
| CN110723043B CN110723043B (en) | 2021-08-03 |
Family
ID=69219338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910909882.6A Active CN110723043B (en) | 2019-09-25 | 2019-09-25 | Motor vehicle safety seat based on hydraulic transmission and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110723043B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506251A (en) * | 2022-03-15 | 2022-05-17 | 江苏金鹏汽车座椅有限公司 | Automobile seat based on foldable loofah lining |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285545A (en) * | 1978-03-11 | 1981-08-25 | Volkswagenwerk Aktiengesellschaft | Automobile passenger seat with an automatically positioned headrest |
| GB2301906A (en) * | 1995-06-07 | 1996-12-18 | Automotive Tech Int | Vehicle headrest and positioning system therefor |
| GB2418850A (en) * | 2004-10-01 | 2006-04-12 | Lear Corp | Vehicle seat and head restraint assembly |
| US20120013155A1 (en) * | 2010-07-19 | 2012-01-19 | Dymos Inc. | Automatic moving apparatus for pre-crash headrest |
| CN106828230A (en) * | 2017-01-10 | 2017-06-13 | 江苏大学 | A kind of safety seat for motor vehicle |
| CN107804204A (en) * | 2017-09-30 | 2018-03-16 | 江苏大学 | A kind of automobile safety backrest |
| CN107891835A (en) * | 2017-10-24 | 2018-04-10 | 江苏大学 | A kind of front-row seats equipped with air bag |
| CN209269107U (en) * | 2018-08-16 | 2019-08-20 | 海宁美惠机械有限公司 | Head rest device and the sofa for using the head rest device |
-
2019
- 2019-09-25 CN CN201910909882.6A patent/CN110723043B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285545A (en) * | 1978-03-11 | 1981-08-25 | Volkswagenwerk Aktiengesellschaft | Automobile passenger seat with an automatically positioned headrest |
| GB2301906A (en) * | 1995-06-07 | 1996-12-18 | Automotive Tech Int | Vehicle headrest and positioning system therefor |
| GB2418850A (en) * | 2004-10-01 | 2006-04-12 | Lear Corp | Vehicle seat and head restraint assembly |
| US20120013155A1 (en) * | 2010-07-19 | 2012-01-19 | Dymos Inc. | Automatic moving apparatus for pre-crash headrest |
| CN106828230A (en) * | 2017-01-10 | 2017-06-13 | 江苏大学 | A kind of safety seat for motor vehicle |
| CN107804204A (en) * | 2017-09-30 | 2018-03-16 | 江苏大学 | A kind of automobile safety backrest |
| CN107891835A (en) * | 2017-10-24 | 2018-04-10 | 江苏大学 | A kind of front-row seats equipped with air bag |
| CN209269107U (en) * | 2018-08-16 | 2019-08-20 | 海宁美惠机械有限公司 | Head rest device and the sofa for using the head rest device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506251A (en) * | 2022-03-15 | 2022-05-17 | 江苏金鹏汽车座椅有限公司 | Automobile seat based on foldable loofah lining |
| CN114506251B (en) * | 2022-03-15 | 2022-11-25 | 江苏金鹏汽车座椅有限公司 | Automobile seat based on foldable loofah lining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110723043B (en) | 2021-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2001703B1 (en) | Transmission device for seat adjuster | |
| US5810436A (en) | Child seat with a tiltable back | |
| US8042415B2 (en) | Motion converting drive mechanism and vehicle seat apparatus including the same | |
| DE102010060887B4 (en) | Automatic movement device for pre-impact headrest | |
| CN101489443B (en) | Adjustable bolster assembly | |
| DE102016121973A1 (en) | Anthropomorphic swivel upper backrest support | |
| US20120025582A1 (en) | Seat assembly having an adjustable head restraint assembly | |
| US5810445A (en) | Child seat with movable armrests | |
| JPH10147169A (en) | Seat for automobile | |
| CN101898527A (en) | Headrest for a vehicle | |
| CN110723043B (en) | Motor vehicle safety seat based on hydraulic transmission and control method thereof | |
| EP1771315B1 (en) | Modular lumbar support apparatus | |
| US3944276A (en) | Adjustable seat, especially for motor vehicles | |
| CN103723061A (en) | Actuator system for adjustment of lumber support | |
| WO2016076352A1 (en) | Vehicle seat | |
| WO2014044745A1 (en) | Head-rest for a vehicle seat | |
| US10933787B2 (en) | Head restraint follower | |
| EP3807125B1 (en) | Backrest for a vehicle seat, and backrest head module | |
| CN218986409U (en) | Automobile seat and automobile with same | |
| US20160096451A1 (en) | Rear seat cushion with h-point articulation | |
| CN218047810U (en) | Feeding device for preparing horse serum cholinesterase | |
| CN213082978U (en) | Multi-gear adjustable headrest mechanism assembly | |
| CN115379964B (en) | Automobile seat and automobile | |
| CN215904648U (en) | Two-wheeled vehicle and adjustable seat thereof | |
| KR102485357B1 (en) | sheet apparatus for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240318 Address after: 230000 B-2704, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee after: HEFEI LONGZHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Country or region after: China Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: JIANGSU University Country or region before: China |