An electric rotating plate mechanism for a car seat and a method of using the same

Abstract

The present invention relates to an electric rotating disk mechanism for a car seat and a method for using the same, comprising a fixed disk, a rotating disk assembly rotatably mounted above the fixed disk, and conveying mechanisms respectively mounted on opposite sides of the fixed disk; a slider assembly of one group of conveying mechanisms is inserted into the rotating disk assembly, and the slider assembly moves along a corresponding track driven by a small motor, and drives the rotating disk assembly to rotate 90 degrees while moving; the slider assemblies of the two groups of conveying mechanisms move in the same direction at the same time and are alternately inserted into the rotating disk assembly to drive it to rotate, thereby realizing the rotation of the rotating disk assembly; the present invention has a compact and reasonable structure, a novel and ingenious conception, and completes the rotation of the rotating disk of the car seat by the alternating loads of the two groups of conveying mechanisms, has good practicality, and the automated operation is convenient, reliable, and stable.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, in particular to an electric rotating disk mechanism of an automobile seat and a use method thereof. Background Art

[0002] With the progress of the times and the development of science and technology, users have higher and higher requirements for car performance and comfort. As the most intuitive embodiment of car comfort, the performance requirements of car seats are gradually increasing.

[0003] In the prior art, car seats can usually only move forward and backward. When the driver needs to rest in the cab, communicate with the neighbor, or use the small table to work, the single movement direction of the seat limits his or her activity space, resulting in a poor comfort experience. In addition, some existing car seat adjustment mechanisms are mostly manual adjustment and locking methods, which are inconvenient to adapt to and provide poor user experience. Summary of the invention

[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a rationally structured electric rotating disk mechanism for automobile seats and a method of using the same, thereby realizing the rotation of the seat in an automated manner, which is convenient, reliable and practical to operate, and greatly improves the customer's comfort.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An electric rotating disk mechanism for a car seat comprises a fixed disk, a rotating disk assembly is rotatably mounted above the fixed disk, and conveying mechanisms are respectively mounted on opposite sides of the fixed disk; a slider assembly of one group of conveying mechanisms is inserted into the rotating disk assembly, and the slider assembly moves along a corresponding track under the drive of a small motor and drives the rotating disk assembly to rotate while moving; two groups of conveying mechanisms are alternately inserted into the rotating disk assembly and drive it to rotate.

[0007] As a further improvement of the above technical solution:

[0008] A rotating support assembly is also installed between the fixed disk and the rotating disk assembly.

[0009] The turntable assembly is a ring-shaped structure with a circular inner circle and a square outer circle;

[0010] The structure of the rotating support assembly is as follows: it includes a pressure plate and a nylon ring stacked in sequence from top to bottom, the pressure plate and the nylon ring are fixed together on the top of the fixed plate by fasteners, and the outer diameter of the pressure plate is larger than the outer diameter of the nylon ring; the inner edge of the turntable assembly extends inwardly between the pressure plate and the nylon ring, and a plurality of groups of ball assemblies are installed circumferentially between the upper part of the inner edge of the turntable assembly and the lower part of the outer edge of the pressure plate, and a plurality of groups of the same ball assemblies are installed circumferentially between the lower part of the inner edge of the turntable assembly and the outer edge of the nylon ring.

[0011] The outer edge of the nylon ring is a rectangular tooth structure with alternating concave and convex parts, and the ball assembly at the outer edge of the nylon ring is embedded in the inner concave part;

[0012] The structure of the single-group ball assembly is as follows: it includes a bar-shaped grid-shaped ball seat, each grid of the ball seat is embedded with a ball, and the top of the ball protrudes beyond the height of the grid.

[0013] The structure of the single-group transport mechanism is as follows: it includes a track, in which a lead screw is installed along the length direction thereof so as to rotate relative to the track, one end of the lead screw extends out of the track, and the end of the lead screw located outside the track is connected to a small motor; a slider assembly is equipped with a spiral pair on the lead screw, and a locking assembly and a movable pin assembly are installed on the top of the slider assembly; a push tongue is installed at one end of the inner side of the track, and a stop block is installed at the other end of the inner side of the track; the stop block pushes the movable pin assembly to retract downward, and the retracted movable pin assembly is locked by the locking assembly; the push tongue releases the locking assembly from the movable pin assembly, so that the movable pin assembly protrudes upward and is inserted into the turntable assembly.

[0014] The structure of the slider assembly is as follows: it includes a slider body, a bushing is fixedly installed through the slider body front and back, the inner circumference of the bushing is sleeved on the screw rod and cooperates in a spiral pair; a lever assembly is rotatably installed on the slider body located outside the bushing, the lower end of the lever assembly extends out of the slider body, and a movable pin assembly is slidably installed on the top of the lever assembly; the bottom end of the lever assembly touches the shift block, so that the lever assembly rotates relative to the slider body, and the top end of the lever assembly slides back and forth relative to the movable pin assembly while driving it to move up and down; a locking assembly is also installed on the top surface of the slider body located outside the side of the movable pin assembly.

[0015] The structure of the movable pin assembly is as follows: it includes a pin seat movably embedded in the slider body from top to bottom, a movable pin is installed in the pin seat from top to bottom, and the side of the movable pin is fixed relative to the pin seat by a locking screw; a limit pin is also inserted into the front side of the pin seat, and the limit pin penetrates the slider body forward, and a limit groove for the limit pin to move up and down is opened on the slider body; the bottom of the pin seat is also opened along the front and rear directions.

[0016] The structure of the lever assembly is as follows: it includes a rotating shaft inserted into the slider body, a lever is mounted on the rotating shaft, the rotating shaft is installed in the middle of the lever, a sliding pin is fixed on the top of the lever, the sliding pin is clamped in the sliding groove and slides forward and backward along the sliding groove, and the bottom of the lever protrudes downward from the slider body; the rotating shaft is also mounted with a torsion spring 1 for resetting the lever;

[0017] The structure of the locking assembly is as follows: it includes a bolt installed on the top surface of the slider body from top to bottom, a locking piece is mounted on the bolt located above the top surface of the slider body, and a torsion spring 2 is also mounted on the bolt to reset the locking piece.

[0018] The structure of the turntable assembly is as follows: it includes a rotating disk with an inner circle and an outer square and a ring structure, and corner pieces are welded at the four corners of the bottom surface of the rotating disk. Each corner piece has a slide groove, and the slide groove is located in the diagonal direction of the rotating disk. The turntable assembly is inserted into the conveying mechanism through the slide groove, and the conveying mechanism is located below the turntable assembly.

[0019] The edges of the fixed plate are all folded downward to form folded edges, and the two groups of conveying mechanisms are respectively supported on the opposite folded edges; the small motor is fastened to the outer side of the folded edge through a semi-ring buckle.

[0020] A method for using the electric rotating plate mechanism of a car seat comprises the following steps:

[0021] The slider assembly and the turntable assembly of one set of transport mechanisms are inserted, and the other set of transport mechanisms is unloaded;

[0022] Driven by a small motor, the two sets of slider assemblies move synchronously and in the same direction along the tracks of the corresponding transport mechanisms;

[0023] Until the two sets of slider assemblies move from one end to the other end of the corresponding track respectively, the turntable assembly plugged with the slider assembly rotates 90° accordingly;

[0024] The slider assembly inserted with the turntable assembly is converted to a no-load state, and another set of slider assemblies is inserted with the turntable assembly;

[0025] Driven by the small motor, the two sets of slider assemblies move synchronously and in the same direction along the track in opposite directions again, causing the turntable assembly to rotate 90°;

[0026] The slider assemblies of the two groups of conveying mechanisms move synchronously in the same direction, and are alternately inserted into the turntable assembly to drive it to rotate, thereby realizing the rotation of the turntable assembly.

[0027] The beneficial effects of the present invention are as follows:

[0028] The invention has a compact and reasonable structure and is easy to operate. The slider assembly of one group of the transport mechanisms is inserted into the turntable assembly, and the slider assembly moves along the corresponding track under the drive of a small motor, and drives the turntable assembly to rotate 90 degrees while moving; the slider assemblies of the two groups of transport mechanisms move in the same direction at the same time and are alternately inserted into the turntable assembly to drive it to rotate, so that the rotation of the turntable assembly is realized through the alternating load of the two groups of transport mechanisms, and the sliding of the slider assembly is an automated movement driven by a small motor, which greatly improves the customer's comfort, has good practicality, is easy to rotate, and is stable and reliable;

[0029] The present invention also includes the following advantages:

[0030] The existence of the rotating support assembly facilitates the smooth rotation of the turntable assembly relative to the fixed disk, effectively reducing the friction resistance between the two during rotation, making the rotation smoother;

[0031] The shift block pushes the lever assembly to rotate relative to the slider body, and the movable pin assembly on the slider assembly of the conveying mechanism contracts downward under the drive of the lever assembly, and is pressed and locked from above by the returning locking assembly to prevent the movable pin assembly from moving upward; when the locking piece of the locking assembly is pushed away from the movable pin assembly by the pushing tongue, the lever assembly rotates back and pushes the movable pin assembly to extend upward. The structure is novel and ingenious, and realizes automatic and alternating insertion between the slider assemblies and the turntable assemblies of the two sets of conveying mechanisms, and the operation is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention.

[0033] Figure 2 for Figure 1 Exploded diagram.

[0034] Figure 3 It is a cross-sectional view of the present invention.

[0035] Figure 4 for Figure 3 A partial enlarged view of part A in the middle.

[0036] Figure 5 It is a schematic structural diagram of the transport mechanism of the present invention (the slider assembly is unlocked).

[0037] Figure 6 It is a schematic structural diagram of the transport mechanism of the present invention (the slider assembly is in a locked state).

[0038] Figure 7 It is a structural schematic diagram of the slider assembly of the present invention.

[0039] Figure 8 for Figure 7 Exploded diagram.

[0040] Among them: 1. Rotating support assembly; 2. Turntable assembly; 3. Fixed plate; 4. Transport mechanism; 5. Half ring buckle;

[0041] 11. Fastener; 12. Clamping plate; 13. Nylon ring; 14. Ball assembly; 21. Rotating plate; 22. Angle piece; 222. Slide; 31. Folding edge; 41. Small motor; 42. Track; 43. Screw rod; 44. Stop block; 45. Push tongue; 46. Slider assembly;

[0042] 461, slider body; 462, lever assembly; 463, limit pin; 464, locking assembly; 465, movable pin assembly; 466, bushing;

[0043] 4611, limit groove; 4621, sliding pin; 4622, lever; 4623, torsion spring 1; 4624, rotating shaft; 4641, bolt; 4642, torsion spring 2; 4643, locking piece; 4651, movable pin; 4652, pin seat; 4653, locking screw; 46521, sliding groove. DETAILED DESCRIPTION

[0044] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0045] like Figure 1 and Figure 2 As shown, an electric rotating disk mechanism for a car seat in this embodiment includes a fixed disk 3, a turntable assembly 2 is rotatably installed above the fixed disk 3, and conveying mechanisms 4 are respectively installed on opposite sides of the fixed disk 3; a slider assembly 46 of one group of the conveying mechanisms 4 is inserted into the turntable assembly 2, and the slider assembly 46 moves along the corresponding track 42 driven by a small motor 41, and drives the turntable assembly 2 to rotate while moving; the two groups of conveying mechanisms 4 are alternately inserted into the turntable assembly 2 and drive it to rotate, thereby realizing the rotation of the turntable assembly 2 through the alternating load of the two groups of conveying mechanisms 4, and the sliding of the slider assembly 46 is an automated movement driven by the small motor 41, which greatly improves the customer's comfort.

[0046] A rotating support assembly 1 is also installed between the fixed disk 3 and the turntable assembly 2. The existence of the rotating support assembly 1 helps the turntable assembly 2 to rotate smoothly relative to the fixed disk 3, effectively reducing the friction resistance between them during rotation, making the rotation smoother.

[0047] The turntable assembly 2 is a ring structure with a circle inside and a square outside;

[0048] The structure of the rotary support assembly 1 is as follows: it includes a compression plate 12 and a nylon ring 13 stacked in sequence from top to bottom, the compression plate 12 and the nylon ring 13 are fixed to the top of the fixed plate 3 by a fastener 11, and the outer diameter of the compression plate 12 is larger than the outer diameter of the nylon ring 13; the inner edge of the turntable assembly 2 extends inward to between the compression plate 12 and the nylon ring 13, and multiple groups of ball assemblies 14 are installed along the circumferential direction between the upper part of the inner edge of the turntable assembly 2 and the lower part of the outer edge of the compression plate 12, and multiple groups of the same ball assemblies 14 are installed along the circumferential direction at the lower part of the inner edge of the turntable assembly 2 and the outer edge of the nylon ring 13, such as Figure 3 and Figure 4 shown.

[0049] The outer edge of the nylon ring 13 is a rectangular tooth structure with concave and convex parts, and the ball assembly 14 at the outer edge of the nylon ring 13 is embedded in the concave part;

[0050] The structure of the single-group ball assembly 14 is as follows: it includes a bar-shaped grid-shaped ball seat, each grid of the ball seat is embedded with a ball, and the top of the ball protrudes above the height of the grid.

[0051] like Figure 5 and Figure 6 As shown, the structure of the single-group transport mechanism 4 is as follows: it includes a track 42, in which a lead screw 43 is installed along the length direction thereof so as to rotate relative to the track, one end of the lead screw 43 extends out of the track 42, and the end of the lead screw 43 located outside the track 42 is connected to a small motor 41; a slider assembly 46 is equipped with a spiral pair on the lead screw 43, and a locking assembly 464 and a movable pin assembly 465 are installed on the top of the slider assembly 46; a push tongue 45 is installed at one end of the inner side of the track 42, and a stop block 44 is installed at the other end of the inner side of the track 42; the stop block 44 pushes the movable pin assembly 465 to retract downward, and the retracted movable pin assembly 465 is locked by the locking assembly 464; the push tongue 45 releases the locking of the movable pin assembly 465 by the locking assembly 464, so that the movable pin assembly 465 protrudes upward and is inserted into the turntable assembly 2.

[0052] like Figure 7 and Figure 8 As shown, the structure of the slider assembly 46 is as follows: it includes a slider body 461, and a bushing 466 is fixedly installed through the slider body 461 front and back, and the inner circumference of the bushing 466 is sleeved on the screw rod 43 and cooperates in a spiral pair; a lever assembly 462 is rotatably installed on the slider body 461 located on the outside of the bushing 466, and the lower end of the lever assembly 462 extends out of the slider body 461, and a movable pin assembly 465 is slidably installed on the top of the lever assembly 462; the bottom end of the lever assembly 462 touches the shift block 44, so that the lever assembly 462 rotates relative to the slider body 461, and the top end of the lever assembly 462 slides back and forth relative to the movable pin assembly 465 while driving it to move up and down; a locking assembly 464 is also installed on the top surface of the slider body 461 located on the outside of the side of the movable pin assembly 465.

[0053] The structure of the movable pin assembly 465 is as follows: it includes a pin seat 4652 movably embedded in the slider body 461 from top to bottom, and a movable pin 4651 is installed in the pin seat 4652 from top to bottom. The side of the movable pin 4651 is fixed relative to the pin seat 4652 by a locking screw 4653; a limit pin 463 is also inserted on the front side of the pin seat 4652, and the limit pin 463 passes through the slider body 461 forward. The slider body 461 is provided with a limit groove 4611 for the limit pin 463 to move up and down; the bottom of the pin seat 4652 is also provided with a sliding groove 46521 along the front and rear directions;

[0054] The structure of the lever assembly 462 is as follows: it includes a rotating shaft 4624 inserted into the slider body 461, a lever 4622 is mounted on the rotating shaft 4624, the rotating shaft 4624 is mounted in the middle of the lever 4622, a sliding pin 4621 is fixed on the top of the lever 4622, the sliding pin 4621 is clamped in the sliding groove 46521 and slides forward and backward along the sliding groove 46521, and the bottom of the lever 4622 protrudes downward from the slider body 461; the rotating shaft 4624 is also mounted with a torsion spring 4623 for returning the lever 4622 to its original position;

[0055] The structure of the locking assembly 464 is as follows: it includes a bolt 4641 installed on the top surface of the slider body 461 from top to bottom, a locking piece 4643 is mounted on the bolt 4641 located above the top surface of the slider body 461, and a torsion spring 4642 is also mounted on the bolt 4641 to reset the locking piece 4643.

[0056] The shift block 44 pushes the lever assembly 462 to rotate relative to the slider body 461, and the movable pin assembly 465 on the slider assembly 46 of the conveying mechanism 4 contracts downward under the drive of the lever assembly 462, and is pressed and locked from above by the returning locking assembly 464 to prevent the movable pin assembly 465 from moving upward; when the locking piece 4643 of the locking assembly 464 is pushed away from the movable pin assembly 465 by the pushing tongue 45, the lever assembly 462 rotates back and pushes the movable pin assembly 465 to extend upward. The structure is novel and ingenious, and realizes the automatic and alternating insertion between the slider assembly 46 and the turntable assembly 2 of the two groups of conveying mechanisms 4, and the operation is stable and reliable.

[0057] The structure of the turntable assembly 2 is as follows: it includes a rotating disk 21 with an inner circle and an outer square and an annular structure, and corner pieces 22 are welded at the four corners of the bottom surface of the rotating disk 21, and a single corner piece 22 is provided with a slide groove 222, and the slide groove 222 is located in the diagonal direction of the rotating disk 21. The turntable assembly 2 is inserted into the conveying mechanism 4 through the slide groove 222, and the conveying mechanism 4 is located below the turntable assembly 2; after the movable pin assembly 465 of the slider assembly 46 of the conveying mechanism 4 is upwardly inserted into the slide groove 222 of the corner piece 22 of the turntable assembly 2, as the slider assembly 46 moves in the track 42, the slider assembly 46 drives the turntable assembly 2 to rotate, and the movable pin 4651 in the movable pin assembly 465 slides along the length direction in the slide groove 222, and the existence of the slide groove 222 helps the slider assembly 46 to smoothly drive the turntable assembly 2 to rotate through linear movement.

[0058] The edges of the fixed plate 3 are all folded downward to form folded edges 31 , and the two groups of conveying mechanisms 4 are respectively supported on the opposite folded edges 31 ; the small motor 41 is fastened to the outer side of the folded edge 31 through a half ring buckle 5 .

[0059] The method for using the electric rotating plate mechanism of the automobile seat of this embodiment comprises the following steps:

[0060] The first step: a set of slider assemblies 46 of the transport mechanism 4 are inserted into the turntable assembly 2, that is, the slider assembly 46 moves to one end of the track 42 where the push tongue 45 is provided, and the push tongue 45 pushes the locking member 4643 in the locking assembly 464 away from the top surface of the pin seat 4652 of the movable pin assembly 465, the torsion spring 2 4642 is deformed, the torsion spring 1 4623 in the lever assembly 462 drives the lever 4622 to return, the lever 4622 rotates relative to the slider body 461 and then pushes the movable pin assembly 465 upward through the sliding pin 4621, the sliding pin 4621 slides in the sliding groove 46521 relative to the pin seat 4652, and the movable pin 4651 moves upward and is inserted into the sliding groove 222 of the corresponding corner piece 22 of the turntable assembly 2;

[0061] The other group of transport mechanisms 4 is unloaded, that is, the slider assembly 46 of the transport mechanism 4 moves to one end of the track 42 where the stop block 44 is provided, and the stop block 44 acts on the lower part of the lever 4622 of the lever assembly 462, so that the lever 4622 rotates relative to the slider body 461 with the rotating shaft 4624 as the axis, and the torsion spring 1 4623 is deformed, and the lever 4622 pulls the movable pin assembly 465 downward through the upper sliding pin 4621, and the sliding pin 4621 slides in the sliding groove 46521 in the opposite direction relative to the pin seat 4652, and the movable pin 4651 shrinks and disengages from the sliding groove 222 of the corner piece 22 of the turntable assembly 2, and the locking member 4643 of the locking member 464 returns to its original position under the action of the torsion spring 2 4642, and the locking member 4643 rotates to the upper side of the pin seat 4652 of the movable pin assembly 465 with the bolt 4641 as the axis, thereby preventing the movable pin assembly 465 from moving upward;

[0062] Step 2: The two sets of slider assemblies 46 are driven by the small motor 41 to move synchronously and in the same direction along the track 42 of the corresponding transport mechanism 4;

[0063] That is, the small motor 41 works to drive the screw rod 43 to rotate, and the screw rod 43 drives the bushing 466 matched with its spiral pair to move along the axial direction, and the slider assembly 46 moves along the axis of the screw rod 43;

[0064] Step 3: until the two sets of slider assemblies 46 move from one end to the other end of the corresponding track 42, the turntable assembly 2 inserted with the slider assembly 46 rotates 90 degrees accordingly;

[0065] That is, the slider assembly 46 loaded with the turntable assembly 2 moves from the push tongue 45 end of the track 42 to the stop block 44 end, and the unloaded slider assembly 46 moves from the stop block 44 end of the track 42 to the push tongue 45 end;

[0066] Step 4: The slider assembly 46 inserted into the turntable assembly 2 is converted into an unloaded state, and another set of slider assemblies 46 is inserted into the turntable assembly 2;

[0067] That is, after the slider assembly 46 inserted with the turntable assembly 2 moves to the stop block 44, the stop block 44 triggers the lever assembly 462, so that the movable pin assembly 465 moves downward and disengages from the turntable assembly 2, and the movable pin assembly 465 is locked by the locking assembly 464, and the slider assembly 46 is turned into an unloaded state;

[0068] After the other group of slider assemblies 46 moves to the push tongue 45, the push tongue 45 pushes the locking member 4643 of the locking assembly 464, so that the locking member 4643 leaves the movable pin assembly 465, and the movable pin assembly 465 moves upward under the return of the lever assembly 462, so that the movable pin 4651 is upwardly inserted into the slide groove 222 of the corner piece 22 of the turntable assembly 2, and the slider assembly 46 is turned into a load state;

[0069] Step 5: The two sets of slider assemblies 46 are driven by the small motor 41 to move synchronously and in the same direction in the opposite direction along the track 42 again, so that the turntable assembly 2 is rotated 90°;

[0070] Step 6: The slider assemblies 46 of the two groups of conveying mechanisms 4 move synchronously in the same direction, and are alternately inserted into the turntable assembly 2 to drive it to rotate, thereby realizing the rotation of the turntable assembly 2.

[0071] The present invention realizes the rotation of the turntable assembly 2 by the alternating load of the two groups of conveying mechanisms 4, and the sliding of the slider assembly 46 is an automated movement driven by a small motor 41. The overall structure is novel and ingenious, and the operation is convenient and reliable, which greatly improves the customer's comfort and has good practicality.

[0072] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. An electric rotating plate mechanism for a car seat, characterized in that: It comprises a fixed plate (3), a turntable assembly (2) is rotatably mounted above the fixed plate (3), and conveying mechanisms (4) are respectively mounted on opposite sides of the fixed plate (3); a slider assembly (46) of one set of conveying mechanisms (4) is inserted into the turntable assembly (2), and the slider assembly (46) moves along a corresponding track (42) under the drive of a small motor (41), and drives the turntable assembly (2) to rotate while moving; the two sets of conveying mechanisms (4) are alternately inserted into the turntable assembly (2) and drive it to rotate; The structure of the single-group transport mechanism (4) is as follows: it comprises a track (42), a screw rod (43) is installed in the track (42) along the length direction thereof and rotates relative to the track (42), one end of the screw rod (43) extends out of the track (42), and the end of the screw rod (43) located outside the track (42) is connected to a small motor (41); a slider assembly (46) is mounted on the screw rod (43) on a spiral pair, and a locking assembly (464) and a movable pin assembly (465) are mounted on the top of the slider assembly (46); A push tongue (45) is installed at one end of the inner side of the track (42), and a stop block (44) is installed at the other end of the inner side of the track (42); the stop block (44) pushes the movable pin assembly (465) to retract downward, and the retracted movable pin assembly (465) is locked by the locking assembly (464); the push tongue (45) releases the locking assembly (464) from locking the movable pin assembly (465), so that the movable pin assembly (465) protrudes upward and is inserted into the turntable assembly (2); The structure of the slider assembly (46) is as follows: it includes a slider body (461), a bushing (466) is fixedly installed through the slider body (461) from front to back, the inner circumference of the bushing (466) is sleeved on the screw rod (43) and is in a spiral pair; a lever assembly (462) is rotatably installed on the slider body (461) outside the bushing (466), the lower end of the lever assembly (462) extends out of the slider body (461), and a movable pin assembly (465) is slidably installed on the top of the lever assembly (462); the bottom end of the lever assembly (462) touches the stop block (44), so that the lever assembly (462) rotates relative to the slider body (461), and the top end of the lever assembly (462) slides back and forth relative to the movable pin assembly (465) while driving it to move up and down; a locking assembly (464) is also installed on the top surface of the slider body (461) outside the side of the movable pin assembly (465); The structure of the movable pin assembly (465) is as follows: it comprises a pin seat (4652) movably embedded in the slider body (461) from top to bottom, a movable pin (4651) is installed in the pin seat (4652) extending from top to bottom, and the side of the movable pin (4651) is fixed relative to the pin seat (4652) by a locking screw (4653); a limit pin (463) is also inserted into the front side of the pin seat (4652), the limit pin (463) penetrates the slider body (461) forward, and a limit groove (4611) is formed on the slider body (461) for the limit pin (463) to move up and down; and a sliding groove (46521) is also formed at the bottom of the pin seat (4652) along the front-back direction; The structure of the lever assembly (462) is as follows: it comprises a rotating shaft (4624) inserted into the slider body (461), the lever (4622) is mounted on the rotating shaft (4624), the rotating shaft (4624) is mounted in the middle of the lever (4622), a sliding pin (4621) is fixed to the top of the lever (4622), the sliding pin (4621) is clamped in the sliding groove (46521) and slides forward and backward along the sliding groove, and the bottom of the lever (4622) protrudes downward from the slider body (461); the rotating shaft (4624) is also mounted with a torsion spring (4623) for returning the lever (4622) to its original position; The locking assembly (464) has a structure comprising a bolt (4641) mounted on the top surface of the slider body (461) from top to bottom, a locking member (4643) being mounted on the bolt (4641) located above the top surface of the slider body (461), and a second torsion spring (4642) for returning the locking member (4643) to its original position being mounted on the bolt (4641); The structure of the turntable assembly (2) is as follows: it comprises a rotating disk (21) with an inner circle and an outer square and an annular structure; corner pieces (22) are respectively welded at four corners of the bottom surface of the rotating disk (21); each corner piece (22) is provided with a slide groove (222); the slide groove (222) is located in the diagonal direction of the rotating disk (21); the rotating disk assembly (2) is inserted into a transport mechanism (4) via the slide groove (222); and the transport mechanism (4) is located below the rotating disk assembly (2).

2. The electric rotating plate mechanism for a car seat as claimed in claim 1, characterized in that: A rotating support assembly (1) is also installed between the fixed disk (3) and the rotating disk assembly (2).

3. The electric rotating plate mechanism for a car seat as claimed in claim 2, characterized in that: The turntable assembly (2) is a ring-shaped structure with a circular inner circle and a square outer circle; The structure of the rotary support assembly (1) is as follows: it comprises a pressure plate (12) and a nylon ring (13) stacked in sequence from top to bottom, the pressure plate (12) and the nylon ring (13) being fixed to the top of the fixed plate (3) via a fastener (11), the outer diameter of the pressure plate (12) being larger than the outer diameter of the nylon ring (13); the inner edge of the rotary disc assembly (2) extending inwardly to between the pressure plate (12) and the nylon ring (13), a plurality of groups of ball assemblies (14) being installed circumferentially between the upper part of the inner edge of the rotary disc assembly (2) and the lower part of the outer edge of the pressure plate (12), and a plurality of groups of the same ball assemblies (14) being installed circumferentially between the lower part of the inner edge of the rotary disc assembly (2) and the outer edge of the nylon ring (13).

4. The electric rotating plate mechanism for a car seat as claimed in claim 3, characterized in that: The outer edge of the nylon ring (13) is a rectangular tooth structure with alternating concave and convex portions, and the ball assembly (14) at the outer edge of the nylon ring (13) is embedded in the inner concave portion; The structure of the single-group ball assembly (14) is as follows: it comprises a bar-shaped grid-shaped ball seat, each grid of the ball seat is embedded with a ball, and the top of the ball protrudes above the height of the grid.

5. The electric rotating plate mechanism for a car seat as claimed in claim 1, characterized in that: The fixed plate (3) has folded edges (31) extending downwardly at the edges around them, and the two groups of transport mechanisms (4) are supported on the opposite folded edges (31) respectively; the small motor (41) is fastened to the outer side of the folded edge (31) via a semi-ring buckle (5).

6. A method for using the electric rotating plate mechanism for a car seat according to claim 1, characterized in that: The steps include: The slider assembly (46) of one set of transport mechanisms (4) is inserted into the turntable assembly (2), and the other set of transport mechanisms (4) is unloaded; Driven by a small motor (41), the two sets of slider assemblies (46) move synchronously and in the same direction along the tracks (42) of the corresponding transport mechanisms (4); Until the two sets of slider assemblies (46) move from one end to the other end of the corresponding track (42), and the turntable assembly (2) inserted into the slider assembly (46) rotates 90 degrees accordingly; The slider assembly (46) inserted into the turntable assembly (2) is converted to a no-load state, and another set of slider assemblies (46) is inserted into the turntable assembly (2); Driven by the small motor (41), the two sets of slider assemblies (46) move synchronously and in the same direction in opposite directions along the track (42) again, so that the turntable assembly (2) rotates 90°; The slider assemblies (46) of the two groups of transport mechanisms (4) move synchronously in the same direction and are alternately inserted into the turntable assembly (2) to drive it to rotate, thereby realizing the rotation of the turntable assembly (2).

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