Rotary lifting frame for a well-being seat for a car

Abstract

The application relates to a rotating lifting frame of a welfare seat for an automobile, and belongs to the technical field of welfare auxiliary equipment. The rotating lifting frame of the welfare seat for the automobile comprises a translation mechanism, a rotating mechanism, a straight-moving mechanism, two groups of lifting mechanisms and a sliding installation mechanism. A positioning installation mechanism for connecting a seat is arranged on the sliding installation mechanism. The positioning installation mechanism comprises a clamping device and two groups of locking devices. The clamping device is slidably connected to the sliding installation mechanism. The two groups of locking devices are installed on the sliding installation mechanism on the two sides of the clamping device. The rotating mechanism is detachably connected to the translation mechanism. The straight-moving mechanism is detachably connected to the rotating mechanism. One end of each of the two groups of lifting mechanisms is rotatably connected to the two sides of the straight-moving mechanism. The sliding installation mechanism is rotatably connected to the other end of the two groups of lifting mechanisms. The application has the technical effects of greatly simplifying the locking operation and improving the locking reliability.

Description

Technical Field

[0001] This application relates to the technical field of welfare assistive devices, and in particular to a rotating lifting frame for a welfare seat in a car. Background Technology

[0002] Welfare seats are assistive devices designed specifically for people with mobility impairments. They are widely used in automobiles, homes, medical transport, and other scenarios. Their core function is to achieve a stable connection between the seat and the mounting base through multi-dimensional movement adjustment such as translation, rotation, lifting, and sliding, combined with clamping and locking mechanisms. This allows users to safely and conveniently get on and off the seat or complete position transfers, reducing the operational burden on caregivers.

[0003] The existing moving and rotating structures of welfare seats mostly rely on independent drive components to achieve translation, rotation or lifting movements. However, the linkage between the various moving mechanisms and locking devices is weak. There is a latch at the bottom of the welfare seat, and the locking structure generally adopts manual buckle, bolt fastening or simple mechanical locking. It is necessary to manually align the latch of the welfare seat with the installation position and then manually operate the locking. Not only is the operation process cumbersome, but it is also prone to loosening due to wear and increased gaps in long-term use or vibration environment, which poses a safety hazard.

[0004] Regarding the aforementioned technologies, the applicant believes that there are shortcomings such as insufficient automated collaboration and cumbersome operation of the locking structure. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a rotating lifting frame for a welfare seat in an automobile.

[0006] This application provides a rotating lifting frame for a welfare seat in an automobile, which adopts the following technical solution: A rotating and lifting frame for a welfare seat in a car includes a translation mechanism, a rotating mechanism, a straight-line mechanism, two sets of lifting mechanisms, and a sliding mounting mechanism. The sliding mounting mechanism is provided with a positioning mounting mechanism for connecting the seat. The positioning mounting mechanism includes a clamping device and two sets of locking devices. The clamping device is slidably connected to the sliding mounting mechanism. The two sets of locking devices are mounted on the sliding mounting mechanism on both sides of the clamping device. The rotating mechanism is detachably connected to the translation mechanism. The straight-line mechanism is detachably connected to the rotating mechanism. One end of each of the two sets of lifting mechanisms is rotatably connected to both sides of the straight-line mechanism. The sliding mounting mechanism is rotatably connected to the other end of the two sets of lifting mechanisms.

[0007] By adopting the above technical solution, the translation mechanism, rotation mechanism, straight-line mechanism and lifting mechanism are detachably connected to form a coherent motion system, which can realize precise adjustment of the seat in multiple dimensions such as translation, rotation, straight-line and lifting, to meet the diverse needs of users getting on and off the vehicle and changing positions. The clamping device and locking device in the positioning installation mechanism on the sliding installation mechanism work together in conjunction with each mechanism. The locking device can adapt to the position of the bottom latch of the seat to achieve automatic alignment and initial locking, and then complete the stable fixation through the locking device, forming an automated process of motion adjustment, automatic alignment and precise locking. There is no need for repeated manual intervention, which solves the problem of cumbersome operation and reliance on manual alignment in traditional structures, and greatly reduces the operation burden of nursing staff.

[0008] Preferably, the translation mechanism includes two sets of first sliding devices, a first ball screw, two sets of first bearing devices, a first servo motor, and a first sliding plate. The two sets of first sliding devices are respectively installed on both sides of the base plate. The first sliding device includes a first slide rail and a first slider. One end of the first slider is slidably connected to the first slide rail, and the first slide rail is detachably connected to the base plate. The first sliding plate is installed on the top of the first sliding device in the two sets of first sliding devices. The first sliding plate is detachably connected to the first slider. The two ends of the first ball screw are connected to the bottom of the first sliding plate between the two sets of first sliding devices through the two sets of first bearing devices. The base of the first servo motor is detachably connected to the first sliding plate at one end of the first ball screw. The working end of the first servo motor is connected to the first ball screw. The first servo motor provides power for the rotation of the first ball screw. The ball nut on the first ball screw is detachably connected to the base plate.

[0009] By adopting the above technical solution, the first slide rail and the first slider in the first sliding device cooperate to provide stable guidance for the first sliding plate, ensuring that the first sliding plate moves accurately along a straight line during translation, reducing shaking and deviation. The first ball screw cooperates with the first servo motor to convert the rotational motion of the motor into the linear motion of the first sliding plate. The ball screw meets the precise position adjustment requirements of the welfare seat.

[0010] Preferably, the rotating mechanism includes a servo electric cylinder, a second slide rail, a second slider, a connecting rod, a rotating plate, and a rotating support base. The second slide rail is detachably connected to one end of the first sliding plate, and one end of the second slider is slidably connected to the second slide rail. The servo electric cylinder is disposed on the first sliding plate at one end of the second slide rail, and the working end of the servo electric cylinder is fixedly connected to the second slider. One end of the connecting rod is rotatably connected to the other end of the second slider, and the other end of the connecting rod is rotatably connected to one end of the bottom of the rotating plate. One end of the rotating support base is detachably connected to the other end of the second slide plate, and the other end of the rotating support base is detachably connected to the other end of the bottom of the rotating plate. Inclined slide rails are provided on both sides of the rotating plate.

[0011] By adopting the above technical solution, the servo electric cylinder converts the rotational motion of the servo motor into linear motion, controlling the sliding distance and speed of the second slider on the second slide rail. Through the connection between the connecting rod and the rotating plate, the linear motion can be converted into the rotation angle control of the rotating plate. The setting of the rotating support seat provides an additional support point for the rotating plate, enhancing the stability of the rotating plate during rotation. Together with the connecting rod, it forms a stable triangular support structure that can withstand a large load, ensuring that the seat will not shake or tilt during rotation. The inclined slide rails on both sides of the rotating plate are used to cooperate with the movement of the lifting mechanism. The servo electric cylinder, the second slide rail, and the second slider cooperate with the connecting rod, forming a linear layout. Compared with the curved structure of the arc rack, it saves more space and can adapt to the narrow installation environment under the seat. The detachable connection design makes it easy to adjust the installation position according to different vehicle models.

[0012] Preferably, the straight-line mechanism includes two sets of second sliding devices, a second ball screw, a first pulley assembly, two sets of second bearing devices, a second servo motor, and a sliding frame. The two sets of second sliding devices are respectively installed on both sides of the rotating plate. Each second sliding device includes a third slide rail and a third slider. The third slide rail is detachably connected to the rotating plate, and the third slider is slidably connected to the third slide rail. The two ends of the second ball screw are connected to the rotating plate between the two sets of second sliding devices through the two sets of second bearing devices. The working end of the second servo motor is connected to one end of the second ball screw through the first pulley assembly. The second servo motor provides power for the rotation of the second ball screw. The two ends of the sliding frame are detachably connected to the third slider in each of the two sets of second sliding devices, and the middle part of the sliding frame is detachably connected to the ball nut of the second ball screw.

[0013] By adopting the above technical solution, the third slide rail and the third slider in the two sets of second sliding devices cooperate to provide stable linear guidance for the sliding frame, ensuring its precise movement along a straight line. The second ball screw and the second servo motor are connected through the first pulley assembly, efficiently converting the rotational motion of the motor into the linear motion of the sliding frame. The ball screw transmission has the characteristics of high precision, which can realize precise position control and meet the precise position adjustment requirements of welfare seats.

[0014] Preferably, the sliding mounting mechanism includes a mounting frame, two sets of third sliding devices, a third ball screw, a second pulley assembly, two sets of third bearing devices, a third servo motor, and a second sliding plate. The two sets of third sliding devices are respectively mounted on both sides of the bottom of the second sliding plate. Each third sliding device includes a fourth slide rail and a fourth slider. The fourth slide rail is detachably connected to the bottom of the second sliding plate, and one end of the fourth slider is slidably connected to the fourth slide rail. The other end of the fourth slider in the two sets of third sliding devices is fixedly connected to both ends of the mounting frame. The two ends of the third ball screw are connected to the second sliding plate between the two sets of third sliding devices through the two sets of third bearing devices. The ball nut on the third ball screw is detachably connected to the middle part of the mounting frame. The third servo motor is connected to one end of the third ball screw through the second pulley assembly, and the third servo motor provides power for the rotation of the third ball screw.

[0015] By adopting the above technical solution, the fourth slide rail and fourth slider in the two sets of third sliding devices cooperate to provide stable guidance for the mounting frame, enabling it to slide precisely along a straight line. The third ball screw and the third servo motor are connected through the second pulley assembly, efficiently converting the motor's rotational motion into the linear motion of the mounting frame. The ball screw drive features high precision and high efficiency, enabling precise position control, meeting the accurate position adjustment requirements of welfare seats, and ensuring the stability and accuracy of the seat during sliding.

[0016] Preferably, the clamping device includes two sets of linear sliding components, a sliding plate, and a rotating plate. The two sets of linear sliding components are mounted on the second sliding plate. Each linear sliding component includes a linear guide rail and a first sliding block. The linear guide rail is detachably connected to the second sliding plate. One end of the first sliding block is slidably connected to the linear guide rail. Both ends of the sliding plate are mounted on the other end of the first sliding block in the two sets of linear sliding components. The sliding plate is detachably connected to the first sliding block. Two sets of second sliding blocks are provided on both sides of one side of the rotating plate. The second sliding blocks are slidably connected to the rotating plate. One end of the sliding plate is rotatably connected to the two sets of second sliding blocks. The rotating plate is rotatably connected to the second sliding plate below the sliding plate.

[0017] By adopting the above technical solution, the linear guide rails and the first sliding block in the two sets of linear sliding components cooperate to enable the sliding plate to slide linearly on the second sliding plate. When the welfare seat moves toward the sliding installation mechanism, the latch at the bottom of the welfare seat contacts the sliding plate, causing the sliding plate to slide. The rotating plate is rotatably connected to the sliding plate through the second sliding blocks on both sides, and the rotating plate itself is also rotatably connected to the second sliding plate. This allows the rotating plate to rotate relative to the sliding plate when the sliding plate moves, changing from horizontal to vertical. The rotating plate engages the latch of the welfare seat base plate, and the sliding plate is fixed by the locking device to complete the fixation of the welfare seat. Through linkage, the clamping device automatically engages the welfare seat, reducing the operation steps for users or caregivers, and is especially suitable for people with mobility impairments or scenarios that require quick fixation of the seat.

[0018] Preferably, the locking device includes a return spring, a wedge block, a guide post, a locking slide plate, an electric push rod, and a locking plate slide rail. The locking plate slide rail is detachably connected to a second sliding plate, the locking slide plate is slidably connected to the locking plate slide rail, the base of the electric push rod is detachably connected to the second sliding plate at one end of the locking plate slide rail, the working end of the electric push rod is fixedly connected to one side of the locking slide plate, the guide post is fixedly connected to the other side of the locking slide plate, a guide hole is provided on the bottom end of the wedge block, the guide post is slidably connected to the guide hole, the return spring is sleeved on the guide post, and in its natural state, one end of the return spring is fixedly connected to the locking slide plate, and the other end of the return spring is fixedly connected to the bottom end of the wedge block.

[0019] By adopting the above technical solution, the electric actuator drives the positioning slide plate to slide on the plate rail, thereby achieving precise control of locking and unlocking actions, improving the automation and accuracy of operation. The guide post is slidably connected to the guide hole on the wedge block, providing precise guidance for the movement of the wedge block, ensuring that the wedge block will not deviate or shake during the movement, thus ensuring the stability and reliability of the locking device. The return spring is sleeved on the guide post. When the sliding plate moves to the wedge block, the inclined surface of the wedge block and the compression of the return spring cooperate to make the sliding plate pass through the wedge block. After the sliding plate passes through the wedge block, the wedge block is popped out by the return spring to lock the sliding plate. Unlocking causes the electric actuator to drive the positioning slide plate to slide outward, thus moving the positioning slide plate as a whole.

[0020] Preferably, the lifting mechanism includes a first link and a second link device. One end of the first link is rotatably connected to one end of the side of the sliding frame, and the other end of the first link is rotatably connected to one end of the side of the mounting frame. The second link device includes two sets of pressure plates and multiple sets of rotating shafts. The two sets of pressure plates are connected as one unit by rotating shafts. One end of the two sets of pressure plates is rotatably connected to the other end of the side of the sliding frame, and the other end of the two sets of pressure plates is rotatably connected to the other end of the side of the mounting frame. The first link, the second link device, the mounting frame, and the sliding frame form a four-bar linkage mechanism. The multiple sets of rotating shafts are slidably connected to the inclined slide rails on both sides of the rotating plate.

[0021] By adopting the above technical solution, the first link, the second link device, the mounting frame, and the sliding frame form a four-bar linkage mechanism. When the sliding frame slides, the rotating shaft in the second link device slides on the inclined slide rail. The inclined slide rail provides a clear guide trajectory for the rotation of the first link and the second link device. The rotation under the action of gravity will proceed along the preset path of the slide rail, so that the mounting frame can be driven to rise and fall smoothly, reducing the shaking and instability factors during the lifting process, and improving the accuracy and reliability of the lifting. The first link and the second link device form a stable support structure during the lifting process, which can evenly distribute the load borne by the mounting frame. This stable support structure can effectively prevent the mounting frame from tilting or deforming during the lifting process.

[0022] In summary, this application includes at least one of the following beneficial technical effects: The linear guide rails and first sliding blocks in the two sets of linear sliding components cooperate to allow the sliding plate to slide linearly on the second sliding plate. When the welfare seat moves toward the sliding installation mechanism, the latch at the bottom of the welfare seat contacts the sliding plate, causing the sliding plate to slide. The rotating plate is rotatably connected to the sliding plate through the second sliding blocks on both sides, and the rotating plate itself is also rotatably connected to the second sliding plate. This allows the rotating plate to rotate relative to the sliding plate as the sliding plate moves, changing from horizontal to vertical. The rotating plate engages the latch on the bottom plate of the welfare seat, and the sliding plate is fixed by the locking device to complete the fixation of the welfare seat. Through linkage, the clamping device automatically engages the welfare seat, reducing the operation steps for users or caregivers, and is especially suitable for people with mobility impairments or scenarios that require quick fixation of the seat.

[0023] An electric actuator drives the locking slide plate to slide on the locking plate rail, thereby achieving precise control of locking and unlocking actions, improving the automation and accuracy of operation. The guide post slides through the guide hole on the wedge block, providing precise guidance for the movement of the wedge block and ensuring that it does not shift or wobble during movement, thus guaranteeing the stability and reliability of the locking device. A return spring is sleeved on the guide post. When the sliding plate moves to the wedge block, the inclined surface of the wedge block and the compression of the return spring cause the sliding plate to pass through the wedge block. After the sliding plate passes the wedge block, the wedge block is ejected by the return spring, locking the sliding plate. Unlocking involves the electric actuator driving the locking slide plate to slide outwards, moving the entire locking slide plate away. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure in the embodiment.

[0025] Figure 2 This is a schematic diagram of the translation mechanism in the embodiment.

[0026] Figure 3 This is a schematic diagram of the rotating mechanism in the embodiment.

[0027] Figure 4 This is a schematic diagram of the straight-line mechanism in the embodiment.

[0028] Figure 5 This is a schematic diagram of the sliding mounting mechanism in the embodiment.

[0029] Figure 6 This is a schematic diagram of the lifting mechanism in the embodiment.

[0030] Figure 7 This is a schematic diagram of the positioning and installation mechanism in the embodiment.

[0031] Figure 8 This is a cross-sectional view of the reset spring inside the locking slide in the embodiment.

[0032] Explanation of reference numerals in the attached drawings: 1. Translation mechanism; 11. Base plate; 12. First sliding device; 121. First slide rail; 122. First slider; 13. First ball screw; 14. First bearing device; 15. First servo motor; 16. First sliding plate; 2. Rotation mechanism; 21. Servo electric cylinder; 22. Second slide rail; 23. Second slider; 24. Connecting rod; 25. Rotating plate; 26. Rotating support seat; 27. Inclined slide rail; 3. Straight-line mechanism; 31. Second sliding device; 311. Third slide rail; 312. Third slider; 32. Second ball screw; 33. First pulley assembly; 34. Second bearing device; 35. Second servo motor; 36. Sliding frame; 4. Sliding mounting mechanism; 41. Mounting frame; 42. Third sliding plate Device; 421, Fourth slide rail; 422, Fourth slider; 43, Third ball screw; 44, Second pulley assembly; 45, Third bearing device; 46, Third servo motor; 47, Second sliding plate; 5, Positioning and mounting mechanism; 51, Clamping device; 511, Linear sliding assembly; 5111, Linear guide rail; 5112, First sliding block; 512, Sliding plate; 513, Rotating plate; 5131, Second sliding block; 52, Locking device; 521, Return spring; 522, Wedge block; 5221, Guide hole; 523, Guide post; 524, Positioning slide plate; 525, Electric push rod; 526, Plate slide rail; 6, Lifting mechanism; 61, First connecting rod; 62, Second connecting rod device; 621, Pressure plate; 622, Rotating shaft. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0034] This application discloses a rotating lifting frame for a welfare seat in an automobile. (See also...) Figure 1 and Figure 2The system includes a translation mechanism 1, a rotation mechanism 2, a straight-line mechanism 3, two sets of lifting mechanisms 6, and a sliding mounting mechanism 4. The sliding mounting mechanism 4 is equipped with a positioning mounting mechanism 5 for connecting the seat. The translation mechanism 1 includes two sets of first sliding devices 12, a first ball screw 13, two sets of first bearing devices 14, a first servo motor 15, and a first sliding plate 16. The two sets of first sliding devices 12 are respectively installed on both sides of the base plate 11. Each first sliding device 12 includes a first slide rail 121 and a first slider 122. The first slide rail 121 is bolted to the base plate 11, and one end of the first slider 122 is mounted on the first slide rail 121, with the first slider 122 slidably connected to the first slide rail 121. The first sliding plate 16 is bolted to the top of the first sliding device 12 in the two sets of first sliding devices 12. The first ball screw 13... The two ends of 3 are connected to the bottom of the first sliding plate 16 between the two sets of first sliding devices 12 via two sets of first bearing devices 14. The first ball screw 13 is rotatably connected to the first bearing device 14. The first bearing device 14 is bolted to the first sliding plate 16. The base of the first servo motor 15 is bolted to the first sliding plate 16 at one end of the first ball screw 13. The ball nut on the first ball screw 13 is bolted to the base plate 11. The bottom sides of the first sliding plate 16 are bolted to the other end of the first sliding plate 16. The working end of the first servo motor 15 is connected to the first ball screw 13. The first servo motor 15 provides power for the rotation of the first ball screw 13. The ball nut of the first ball screw 13 is installed on the base plate 11. The rotation of the first ball screw 13 causes the first sliding plate 16 to move linearly.

[0035] Reference Figure 1 and Figure 3 The rotating mechanism 2 includes a servo electric cylinder 21, a second slide rail 22, a second slider 23, a connecting rod 24, a rotating plate 25, and a rotating support 26. The second slide rail 22 is bolted to one end of the first sliding plate 16. One end of the second slider 23 is mounted on the second slide rail 22, and the second slider 23 is slidably connected to the second slide rail 22. The servo electric cylinder 21 is mounted on the first sliding plate 16 at one end of the second slide rail 22. The housing of the servo electric cylinder 21 is bolted to the first sliding plate 16. The working end of the servo electric cylinder 21 is fixedly connected to the second slider 23. The connecting rod 24... One end of the connecting rod 24 is hinged to the other end of the second slider 23, and the other end of the connecting rod 24 is hinged to one end of the bottom of the rotating plate 25. One end of the rotating support 26 is bolted to the other end of the second sliding plate 47, and the other end of the rotating support 26 is bolted to the other end of the bottom of the rotating plate 25. The servo electric cylinder 21 provides power for the second slider 23 to slide on the second slide rail 22. The second slider 23 pushes the connecting rod 24 to make the rotating plate 25 rotate through the rotating support 26. Inclined slide rails 27 that cooperate with the two sets of lifting mechanisms 6 are provided on both sides of the rotating plate 25.

[0036] Reference Figure 1 and Figure 4 The straight-line mechanism 3 includes two sets of second sliding devices 31, a second ball screw 32, a first pulley assembly 33, two sets of second bearing devices 34, a second servo motor 35, and a sliding frame 36. The second sliding devices 31 are respectively installed on both sides of the rotating plate 25. Each second sliding device 31 includes a third slide rail 311 and a third slider 312. The third slide rail 311 is bolted to the rotating plate 25, and the third slider 312 is installed on the third slide rail 311 and slidably connected to the third slide rail 311. The two ends of the second ball screw 32 are installed on the rotating plate 25 between the two sets of second sliding devices 31 through two sets of second bearing devices 34. The second ball screw 32 is rotatably connected to the second bearing device 34, which is bolted to the rotating plate 25. The working end of the second servo motor 35 is connected to one end of the second ball screw 32 through the first pulley assembly 33. The two ends of the sliding frame 36 are respectively bolted to the third slider 312 in the two sets of second sliding devices 31. The middle part of the sliding frame 36 is bolted to the ball nut of the second ball screw 32. The second servo motor 35 provides power for the rotation of the second ball screw 32. The rotation of the second ball screw converts the ball nut on the second ball screw 32 into linear movement, which, with the assistance of the third sliding device, makes the sliding frame 36 move linearly.

[0037] Reference Figure 1 , Figure 5 and Figure 6The sliding mounting mechanism 4 includes a mounting frame 41, two sets of third sliding devices 42, a third ball screw 43, a second pulley assembly 44, two sets of third bearing devices 45, a third servo motor 46, and a second sliding plate 47. The lifting mechanism 6 includes a first connecting rod 61 and a second connecting rod device 62. The second connecting rod device 62 includes two sets of pressure plates 621 and multiple sets of rotating shafts 622. The two sets of pressure plates 621 are connected as one unit through the rotating shafts 622. The rotating shafts 622 are rotating components and are slidably connected to the inclined slide rail 27. One end of the first connecting rod 61 is hinged to one end of the side of the sliding frame 36, and the other end of the first connecting rod 61 is hinged to the mounting frame 41. On one side, one end of two sets of pressure plates 621 is connected to the other end of the side of the sliding frame 36 by a hinge, and the other end of the two sets of pressure plates 621 is connected to the other end of the side of the mounting frame 41 by a hinge. The first link 61, the second link device 62, the mounting frame 41 and the sliding frame 36 form a four-bar linkage. When the straight-moving mechanism 3 drives the sliding frame 36 to move linearly along the rotating plate 25, the sliding frame 36 drives the rotating shaft 622 of the second link device 62 to slide along the inclined slide rail 27 through the four-bar linkage formed. Constrained by the inclination angle of the inclined slide rail 27, the four-bar linkage changes shape, pushing the mounting frame 41 and the sliding mounting mechanism 4 to rotate down or rotate back up.

[0038] Reference Figure 1 , Figure 7 and Figure 8The positioning and installation mechanism 5 includes a clamping device 51 and two sets of locking devices 52. The clamping device 51 includes two sets of linear sliding components 511, a sliding plate 512, and a rotating plate 513. The two sets of linear sliding components 511 are mounted on the second sliding plate 47. Each linear sliding component 511 includes a linear guide rail 5111 and a first sliding block 5112. The linear guide rail 5111 is bolted to the second sliding plate 47. One end of the first sliding block 5112 is mounted on the linear guide rail 5111, and the first sliding block 5112 is slidably connected to the linear guide rail 5111. Both ends of the sliding plate 512 are mounted on the other end of the first sliding block 5112 in the two sets of linear sliding components 511. The sliding plate 512 and the first sliding block 5112 are connected. The rotating plate 513 is bolted together. Two sets of second sliding blocks 5131 are provided on both sides of one side of the rotating plate 513. The second sliding blocks 5131 are slidably connected to the rotating plate 513. One end of the sliding plate 512 is connected to the two sets of second sliding blocks 5131 by a hinge. The rotating plate 513 is connected to the second sliding plate 47 below the sliding plate 512 by a hinge. When the welfare seat moves toward the sliding mounting mechanism 4, the latch on the bottom of the welfare seat contacts the sliding plate 512, causing the sliding plate 512 to slide. The sliding plate 512 is connected to the second sliding block 5131 by a hinge, causing the rotating plate 513 to rotate, so that the rotating plate 513 changes from a horizontal to a vertical direction. The vertical rotating plate 513 limits the latch at the bottom of the welfare seat.

[0039] The locking device 52 includes a return spring 521, a wedge block 522, a guide post 523, a locking slide plate 524, an electric push rod 525, and a locking plate slide rail 526. The locking plate slide rail 526 is bolted to the second sliding plate 47. The locking slide plate 524 is mounted on the locking plate slide rail 526 and is slidably connected to the locking plate slide rail 526. The base of the electric push rod 525 is bolted to the second sliding plate 47 at one end of the locking plate slide rail 526. The working end of the electric push rod 525 is fixedly connected to one side of the locking slide plate 524. The guide post 523 is fixedly connected to the other side of the locking slide plate 524. A guide hole 5221 is provided on the bottom end of the wedge block 522. The guide post 523 is slidably connected to the guide hole 5221. The return spring 521 is sleeved on the guide post 522. 3. In its natural state, the return spring 521 has one end fixedly connected to the locking slide plate 524 and the other end fixedly connected to the bottom end of the wedge block 522. When the sliding plate 512 moves to the wedge block 522, the top of the wedge block 522 is an inclined surface. The movement of the sliding plate 512 will pass through the inclined surface of the wedge block 522 and the return spring 521, causing the wedge block 522 to move and the sliding plate 512 to pass. After the sliding plate 512 passes, the wedge block 522 is reset by the return spring 521, so that the sliding plate 512 cannot slide back. When it is necessary to remove the seat, the electric push rod 525 drives the locking slide plate 524 to move outward through the locking plate slide rail 526, so that the wedge block 522 is away from the sliding plate 512.

[0040] The working principle of the rotating lifting frame of a welfare seat for automobiles in this application is as follows: The translation mechanism 1 drives the entire subsequent mechanism to move linearly on the base plate 11. After the first servo motor 15 is started, the working end of the first servo motor 15 directly drives the first ball screw 13 to rotate. The ball nut on the first ball screw 13 is fixedly installed on the base plate 11. The rotation of the first ball screw 13 is converted into linear movement, which drives the first sliding plate 16 connected through the first bearing device 14 to produce linear displacement. The bottom sides of the first sliding plate 16 are bolted to the first slider 122 in the two sets of first sliding devices 12. The first slider 122 is fixed to the first slide rail 121 on the base plate 11 and slides, providing stable support and guidance for the linear movement of the first sliding plate 16. The rotating mechanism 2, based on the first sliding plate 16 of the translation mechanism 1, drives the rotating plate 25 and the subsequent mechanism to achieve a certain angle of rotation. The working end of the servo electric cylinder 21 pushes the second slider 23 to slide along the second slide rail 22 fixed on the first sliding plate 16. 3. During sliding, the connecting rod 24, which is connected by a hinge, is pushed. The other end of the connecting rod 24 is hinged to one end of the bottom of the rotating plate 25. The other end of the bottom of the rotating plate 25 is connected to the first sliding plate 16 through the rotating support 26. Under the thrust of the connecting rod 24, the rotating plate 25 rotates around the rotating support 26. The inclined slide rails 27 on both sides of the rotating plate 25 provide guidance and angle constraints for the subsequent movement of the lifting mechanism 6. The working end of the second servo motor 35 transmits power to the second ball screw 32 through the first pulley assembly 33, causing the second ball screw 32 to rotate, so that the ball nut of the second ball screw 32 produces a linear motion. The sliding frame 36 is displaced, with its middle section connected to the ball nut of the second ball screw 32. Both ends of the sliding frame 36 are bolted to the third slider 312 in the two sets of second sliding devices 31. This causes the sliding frame 36 to move stably and linearly along the rotating plate 25. As the sliding frame 36 moves linearly, the first connecting rod 61 and the second connecting rod device 62, connected by hinges on the sides of the sliding frame 36, are driven. The rotating shaft 622 in the second connecting rod device 62 is slidably connected to the inclined slide rails 27 on both sides of the rotating plate 25. When the sliding frame 36 moves, the rotating shaft 622 slides along the inclined slide rails 27. Constrained by the inclination angle of the inclined slide rails 27, the four-bar linkage changes shape. This causes the mounting frame 41 and the sliding mounting mechanism 4 to rotate and descend or rotate in the opposite direction and rise, thus completing the height adjustment of the seat. The third servo motor 46 of the sliding mounting mechanism 4 drives the third ball screw 43 to rotate through the second pulley assembly 44. Under the guidance of the third sliding device 42, it drives the second sliding plate 47 to move linearly along the mounting frame 41, realizing fine-tuning of the seat position. When the welfare seat moves towards the sliding mounting mechanism 4, the latch at the bottom of the seat contacts the sliding plate 512, causing the sliding plate 512 to slide along the linear sliding assembly 511. The sliding of the sliding plate 512 causes the rotating plate 513 to rotate around the hinge axis with the second sliding plate 47.The rotating plate 513 is rotated from horizontal to vertical. The vertically rotating plate 513 limits the seat bottom latch, completing initial positioning. When the sliding plate 512 moves to the wedge block 522, the top inclined surface of the wedge block 522 is subjected to force. Combined with the elastic deformation of the return spring 521, the wedge block 522 moves along the guide post 523, allowing the sliding plate 512 to pass. After the sliding plate 512 passes, the return spring 521 returns to its original position, pushing the wedge block 522 back to its original position. The wedge block 522 prevents the sliding plate 512 from sliding back, achieving a stable lock on the seat. When the seat needs to be disassembled, the working end of the electric push rod 525 drives the locking slide plate 524 to move outward along the plate slide rail 526. The guide post 523 moves with the locking slide plate 524, causing the wedge block 522 to move away from the sliding plate 512, releasing the lock on the sliding plate 512, and allowing the seat to be easily disassembled.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotating lifting frame for a car welfare seat, characterized in that: The system includes a translation mechanism (1), a rotation mechanism (2), a straight-line mechanism (3), two sets of lifting mechanisms (6), and a sliding mounting mechanism (4). The sliding mounting mechanism (4) is provided with a positioning mounting mechanism (5) for connecting the seat. The positioning mounting mechanism (5) includes a clamping device (51) and two sets of locking devices (52). The clamping device (51) is slidably connected to the sliding mounting mechanism (4). The two sets of locking devices (52) are installed on the sliding mounting mechanism (4) on both sides of the clamping device (51). The rotation mechanism (2) is detachably connected to the translation mechanism (1). The straight-line mechanism (3) is detachably connected to the rotation mechanism (2). One end of each of the two sets of lifting mechanisms (6) is rotatably connected to both sides of the straight-line mechanism (3). The sliding mounting mechanism (4) is rotatably connected to the other end of the two sets of lifting mechanisms (6).

2. The rotating lifting frame for a car welfare seat according to claim 1, characterized in that: The translation mechanism (1) includes two sets of first sliding devices (12), a first ball screw (13), two sets of first bearing devices (14), a first servo motor (15), and a first sliding plate (16). The two sets of first sliding devices (12) are respectively installed on both sides of the base plate (11). The first sliding device (12) includes a first slide rail (121) and a first slider (122). One end of the first slider (122) is slidably connected to the first slide rail (121). The first slide rail (121) is detachably connected to the base plate (11). The first sliding plate (16) is installed on the first sliding part of the two sets of first sliding devices (12). At the top, the first sliding plate (16) is detachably connected to the first slider (122). The two ends of the first ball screw (13) are connected to the bottom of the first sliding plate (16) between the two sets of first sliding devices (12) through two sets of first bearing devices (14). The base of the first servo motor (15) is detachably connected to the first sliding plate (16) at one end of the first ball screw (13). The working end of the first servo motor (15) is connected to the first ball screw (13). The first servo motor (15) provides power for the rotation of the first ball screw (13). The ball nut on the first ball screw (13) is detachably connected to the base plate (11).

3. The rotating lifting frame for a car welfare seat according to claim 1, characterized in that: The rotating mechanism (2) includes a servo electric cylinder (21), a second slide rail (22), a second slider (23), a connecting rod (24), a rotating plate (25), and a rotating support (26). The second slide rail (22) is detachably connected to one end of the first sliding plate (16), and one end of the second slider (23) is slidably connected to the second slide rail (22). The servo electric cylinder (21) is set on the first sliding plate (16) at one end of the second slide rail (22). The working end of the servo electric cylinder (21) is fixedly connected to the second slider (23). One end of the connecting rod (24) is rotatably connected to the other end of the second slider (23), and the other end of the connecting rod (24) is rotatably connected to one end of the bottom of the rotating plate (25). One end of the rotating support (26) is detachably connected to the other end of the second sliding plate (47), and the other end of the rotating support (26) is detachably connected to the other end of the bottom of the rotating plate (25). Inclined slide rails (27) are provided on both sides of the rotating plate (25).

4. The rotating lifting frame for a car welfare seat according to claim 1, characterized in that: The straight-line mechanism (3) includes two sets of second sliding devices (31), a second ball screw (32), a first pulley assembly (33), two sets of second bearing devices (34), a second servo motor (35), and a sliding frame (36). The two sets of second sliding devices (31) are respectively installed on both sides of the rotating plate (25). The second sliding device (31) includes a third slide rail (311) and a third slider (312). The third slide rail (311) is detachably connected to the rotating plate (25), and the third slider (312) is slidably connected to the third slide rail (311). The second ball screw... The two ends of (32) are connected to the rotating plate (25) between the two sets of second sliding devices (31) through two sets of second bearing devices (34). The working end of the second servo motor (35) is connected to one end of the second ball screw (32) through the first pulley assembly (33). The second servo motor (35) provides power for the rotation of the second ball screw (32). The two ends of the sliding frame (36) are respectively detachably connected to the third slider (312) in the two sets of second sliding devices (31). The middle part of the sliding frame (36) is detachably connected to the ball nut of the second ball screw (32).

5. The rotating lifting frame for a car welfare seat according to claim 1, characterized in that: The sliding mounting mechanism (4) includes a mounting frame (41), two sets of third sliding devices (42), a third ball screw (43), a second pulley assembly (44), two sets of third bearing devices (45), a third servo motor (46), and a second sliding plate (47). The two sets of third sliding devices (42) are respectively installed on both sides of the bottom of the second sliding plate (47). Each third sliding device (42) includes a fourth slide rail (421) and a fourth slider (422). The fourth slide rail (421) is detachably connected to the bottom of the second sliding plate (47), and one end of the fourth slider (422) is slidably connected to the fourth slide rail (421). 1) The other end of the fourth slider (422) in the two sets of the third sliding devices (42) is fixedly connected to both ends of the mounting frame (41). The two ends of the third ball screw (43) are connected to the second sliding plate (47) between the two sets of the third sliding devices (42) through the two sets of the third bearing devices (45). The ball nut on the third ball screw (43) is detachably connected to the middle part of the mounting frame (41). The third servo motor (46) is connected to one end of the third ball screw (43) through the second pulley assembly (44). The third servo motor (46) provides power for the rotation of the third ball screw (43).

6. The rotating lifting frame for a car welfare seat according to claim 1, characterized in that: The clamping device (51) includes two sets of linear sliding components (511), a sliding plate (512), and a rotating plate (513). The two sets of linear sliding components (511) are mounted on the second sliding plate (47). Each linear sliding component (511) includes a linear guide rail (5111) and a first sliding block (5112). The linear guide rail (5111) is detachably connected to the second sliding plate (47). One end of the first sliding block (5112) is slidably connected to the linear guide rail (5111). Both ends of the sliding plate (512) are mounted on the two sliding plates (47). On the other end of the first sliding block (5112) in the linear sliding assembly (511), the sliding plate (512) is detachably connected to the first sliding block (5112). Two sets of second sliding blocks (5131) are provided on both sides of one side of the rotating plate (513). The second sliding blocks (5131) are slidably connected to the rotating plate (513). One end of the sliding plate (512) is rotatably connected to the two sets of second sliding blocks (5131). The rotating plate (513) is rotatably connected to the second sliding plate (47) below the sliding plate (512).

7. The rotating lifting frame for a car welfare seat according to claim 1, characterized in that: The locking device (52) includes a return spring (521), a wedge block (522), a guide post (523), a locking slide plate (524), an electric push rod (525), and a locking plate slide rail (526). The locking plate slide rail (526) is detachably connected to a second sliding plate (47). The locking slide plate is slidably connected to the locking plate slide rail (524). The base of the electric push rod (525) is detachably connected to the second sliding plate (47) at one end of the locking plate slide rail (526). The working end of the electric push rod (525) is fixedly connected to the locking slide plate (524). 4) On one side, the guide post (523) is fixedly connected to the other side of the positioning slide plate (524). The bottom end of the wedge block (522) is provided with a guide hole (5221). The guide post (523) is slidably connected to the guide hole (5221). The reset spring (521) is sleeved on the guide post (523). In its natural state, one end of the reset spring (521) is fixedly connected to the positioning slide plate (524), and the other end of the reset spring (521) is fixedly connected to the bottom end of the wedge block (522).

8. The rotating lifting frame for a car welfare seat according to claim 1, characterized in that: The lifting mechanism (6) includes a first link (61) and a second link device (62). One end of the first link (61) is rotatably connected to one end of the side of the sliding frame (36), and the other end of the first link (61) is rotatably connected to one end of the side of the mounting frame (41). The second link device (62) includes two sets of pressure plates (621) and multiple sets of rotating shafts (622). The two sets of pressure plates (621) are connected as one unit through the rotating shafts (622). One end of the two sets of pressure plates (621) is rotatably connected to the other end of the side of the sliding frame (36), and the other end of the two sets of pressure plates (621) is rotatably connected to the other end of the side of the mounting frame (41). The first link (61), the second link device (62), the mounting frame (41), and the sliding frame (36) form a four-bar linkage mechanism. The multiple sets of rotating shafts (622) are slidably connected to the inclined slide rails (27) on both sides of the rotating plate (25).

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