Electric turntable with stage automatic locking function

Abstract

The utility model discloses an electric turntable with a stage automatic locking function, which comprises a fixed pressure plate, a movable turntable and a bottom base plate which are sequentially arranged from top to bottom, a rotating assembly used for enabling the movable rotating disc to rotate relative to the fixed pressing disc and the bottom base disc and a step locking assembly used for achieving automatic locking and unlocking of the movable rotating disc are arranged between the bottom base disc and the movable rotating disc. The arc-shaped self-lubricating wear-resisting sliding blocks are arranged on the upper face and the lower face, rotating relatively, of the movable rotating disc, a ball retainer in the prior art is replaced, the structure is simple, the weight is light, and meanwhile abnormal sound generated by rotation can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seats, and in particular relates to an electric turntable with a step-by-step automatic locking function. Background Art

[0002] With the continuous development of the automobile industry, the functions of automobile seats are becoming more and more abundant. Among them, in order to facilitate the communication between the front and rear passengers or to facilitate the entry of passengers, the seats will be provided with a rotation function. Usually the rotation function is achieved by a rotating disk set under the seat. Currently, there are manual rotating disks and electric rotating disks. In the electric rotating disk, a ball retainer is used on the relative rotating surface to achieve relative rotation. The overall structure is complex, the product is heavy, and it is easy to produce abnormal noise. At the same time, it is not convenient to overlap with the seat frame. Utility Model Content

[0003] The utility model proposes an electric turntable with a step-by-step automatic locking function, which has a simple structure and light weight and can avoid abnormal noise caused by using a ball retainer on a relative rotating surface.

[0004] To this end, the technical solution adopted by the utility model is: an electric turntable with a step-by-step automatic locking function, comprising a fixed pressure plate, a movable turntable and a bottom base plate arranged in sequence from top to bottom, and a rotating component for realizing the movable turntable relative to the fixed pressure plate and the bottom base plate and a step-by-step locking component for realizing automatic locking and unlocking of the movable turntable are arranged between the bottom base plate and the movable turntable.

[0005] As a preferred embodiment of the above scheme, at least one arc-shaped self-lubricating wear-resistant sliding block for reducing friction is provided between the movable turntable and the bottom base plate, and between the movable turntable and the fixed pressure plate, and the arc-shaped self-lubricating wear-resistant sliding block is fixed on the bottom base plate and the fixed pressure plate.

[0006] Further preferably, the movable turntable includes a toothed plate and a press plate which are spaced apart in an upper and lower direction, the outer side of the toothed plate and the inner side of the press plate are connected via a radially arranged connecting plate, the connecting plate and the toothed plate, as well as the connecting plate and the press plate are transitioned via a first circular arc, the inner side of the fixed pressure plate is provided with an upward radial flange, and the radial flange and the fixed pressure plate are transitioned via a second circular arc.

[0007] Further preferably, the movable turntable is provided with a plurality of gap eliminating blocks in the shape of "7" for eliminating the rotational gap between the fixed pressure plate and the movable turntable, the end of the horizontal section of the gap eliminating block is provided with a mounting clamping block for realizing the installation of the gap eliminating block, the bottom of the vertical section of the gap eliminating block is provided with an outward gap flange, and the gap flange is located between the second circular arc and the first circular arc on the lower side, and the inner and outer sides of the vertical section of the gap eliminating block are provided with contact protrusions for contacting with corresponding components.

[0008] Further preferably, the rotating assembly includes a driving motor arranged at the bottom of the bottom base through a mounting structure, a driving gear is arranged at the output end of the driving motor, and the upper end of the driving gear passes through the bottom base, a circle of mounting protrusions is arranged in the middle of the bottom base, and a driven gear plate capable of meshing with the driving gear is arranged on the outer sleeve of the mounting protrusion.

[0009] Further preferably, the stepped locking assembly includes a stepped locking motor arranged below the bottom base plate, a locking pin is arranged below the bottom base plate through a locking pin bracket, a gear hole for realizing gear adjustment is arranged on the driven gear plate, the upper end of the locking pin can be inserted into the gear hole after passing through the bottom base plate, the lower end of the locking pin passes through the locking pin bracket and is provided with an unlocking cable for connecting with the output shaft of the stepped locking motor, the locking pin sleeve is provided with a return spring located between the locking pin bracket and the bottom base plate; a circle of limiting protrusions is arranged near the upper end of the locking pin to prevent the locking pin from pressing against the movable turntable after the transition of movement.

[0010] Further preferably, the mounting structure includes a motor fixing bolt and a drive motor mounting bracket arranged between the bottom base plate and the movable turntable, the drive motor mounting bracket is provided with an output shaft support hole for inserting the output shaft of the drive motor, and the motor fixing bolt passes through the drive motor, the bottom base plate and the drive motor mounting bracket in sequence and is tightened on the fixing nut.

[0011] Further preferably, a motor notch is provided at a location of the movable turntable corresponding to the installation position of the drive motor, and the motor notch is equipped with a motor dust cover.

[0012] Further preferably, it is equipped with an upper lap frame for installing rotating parts on the electric turntable and a lower lap frame for installing the electric turntable, the upper lap frame is arranged above the movable turntable, the lower lap frame is arranged below the bottom base plate, a plurality of lower hooks are arranged on the top surface of the lower lap frame, and an upper hook corresponding to the lower hook is arranged on the bottom surface of the upper lap frame, and the upper hook and the lower hook can be hooked together with a rotation adjustment gap.

[0013] The beneficial effects of the utility model are as follows: by arranging arc-shaped self-lubricating wear-resistant sliding blocks on the upper and lower relatively rotating surfaces of the movable turntable to replace the ball retainer in the prior art, it not only makes the structure simple and light in weight, but also avoids abnormal noise caused by rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an exploded view of the utility model (with a stage locking assembly).

[0015] Figure 2 It is a schematic diagram of the installation of the rotating assembly in the utility model.

[0016] Figure 3 It is a schematic diagram of the installation of the gap eliminating block in the utility model.

[0017] Figure 4 It is a schematic diagram of the multi-stage locking assembly in the present invention.

[0018] Figure 5 It is an exploded view of the utility model equipped with upper and lower overlapping frames.

[0019] Figure 6 It is a schematic diagram of the utility model equipped with an upper overlapping frame.

[0020] Figure 7 It is a schematic diagram of the utility model equipped with a lower overlapping frame.

[0021] Figure 8 It is a schematic diagram of the utility model equipped with upper and lower overlapping frames.

[0022] Figure markings: fixed pressure plate-1, radial flange-1a, second arc-1b, movable turntable-2, motor notch-2a, toothed plate-2b, press-fit plate-2c, connecting plate-2d, first arc-2e, bottom base plate-3, mounting protrusion-3a, drive motor-4, driving gear-5, driven toothed plate-6, step-locking motor-7, locking pin bracket-8, locking pin-9, limiting protrusion-9a, unlocking cable-10, return spring-11, motor fixing bolt-14, drive motor mounting bracket-15, motor dust cover-16, arc-shaped self-lubricating wear-resistant slider-17, gap elimination block-18, mounting clamping block-18a, gap flange-18b, contact protrusion-18c, upper lap frame-19, upper hook-19a, lower lap frame-20, lower hook-20a. DETAILED DESCRIPTION

[0023] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0024] like Figure 1-Figure 8 As shown, an electric turntable with a step-by-step automatic locking function is mainly composed of a fixed pressure plate 1, a movable turntable 2, a bottom base plate 3, a rotating assembly and a step-by-step locking assembly arranged in sequence from top to bottom. A rotating assembly for realizing the relative rotation of the movable turntable 2 relative to the fixed pressure plate 1 and the bottom base plate 3 is arranged between the bottom base plate 3 and the movable turntable 2, that is, the relative rotation of the movable turntable relative to the fixed pressure plate and the bottom base plate can be realized through the rotating assembly. In order to realize the position fixation of the movable turntable after rotation and the unlocking and rotation after the position fixation, a step-by-step locking assembly is also arranged between the bottom base plate 3 and the movable turntable 2.

[0025] In order to reduce friction and facilitate the rotation of the movable turntable, at least one arc-shaped self-lubricating wear-resistant slider 17 for reducing friction is provided between the movable turntable 2 and the bottom base plate 3, and between the movable turntable 2 and the fixed pressure plate 1, and the arc-shaped self-lubricating wear-resistant slider is fixedly provided on one side of the bottom base plate and the fixed pressure plate facing the movable turntable, and the arc-shaped self-lubricating wear-resistant sliders located on both sides of the movable turntable form plastic bearings. Compared with the traditional ball cage, the overall structure is simple, the weight is light, and abnormal noise can be reduced. Preferably, each side of the upper and lower sides of the movable turntable is provided with four arc-shaped self-lubricating wear-resistant sliders 17.

[0026] Due to the arc-shaped self-lubricating and wear-resistant sliding blocks used between the movable turntable and the fixed pressure plate, and between the movable turntable and the bottom base plate, in order to ensure the overall support, the movable turntable 2 includes a toothed plate 2b and a press plate 2c spaced apart in the upper and lower directions, and the outer side of the toothed plate 2b and the inner side of the press plate 2c are connected by a radially arranged connecting plate 2d, and the connecting plate 2d and the toothed plate 2b, and the connecting plate 2d and the press plate 2c are transitioned by a first arc 2e, and correspondingly, an upward radial flange 1a is provided on the inner side of the fixed pressure plate 1, and the radial flange 1a and the fixed pressure plate 1 are transitioned by a second arc 1b.

[0027] Due to the rotation of the movable turntable, a gap is left between the radial flange and the connecting disk. In order to eliminate or reduce the gap, a plurality of gap eliminating blocks 18 in the shape of "7" are provided on the movable turntable 2 for eliminating the rotation gap between the fixed pressure plate 1 and the movable turntable 2. A mounting clamping block 18a for installing the gap eliminating block is provided at the end of the horizontal section of the gap eliminating block 18, an outward gap flange 18b is provided at the bottom of the vertical section of the gap eliminating block 18, and the gap flange 18b is located between the second arc 1b and the first arc 2e on the lower side, and contact protrusions 18c for contacting corresponding components are provided on both inner and outer sides of the vertical section of the gap eliminating block 18.

[0028] The specific structure of the rotating assembly includes a driving motor 4 arranged at the bottom of the bottom base plate 3 through a mounting structure, a driving gear 5 is arranged at the output end of the driving motor 4, and the upper end of the driving gear 5 passes through the bottom base plate 3, and a circle of mounting protrusions 3a is arranged in the middle of the bottom base plate 3, and a driven gear plate 6 that can mesh with the driving gear 5 is arranged outside the mounting protrusion 3a through a plastic sleeve or a bearing sleeve, and the driven gear plate is fixed under the movable turntable. When the driving motor is working, the driven gear plate can be rotated by the meshing of the driving gear and the driven gear plate. Since the driven gear plate is fixed to the movable turntable, the rotation of the movable turntable can also be realized.

[0029] Preferably, an arcuate self-lubricating wear-resistant sliding block is also provided between the driven tooth plate and the bottom base plate, and a shift hole for the lock pin to pass through is provided on the arcuate self-lubricating wear-resistant sliding block below the driven tooth plate.

[0030] The mounting structure includes a motor fixing bolt 14 and a drive motor mounting bracket 15 arranged between the bottom base plate 3 and the movable turntable 2. In order to facilitate the support of the upper end of the output shaft with the driving gear, an output shaft support hole for inserting the output shaft of the drive motor 4 is provided on the drive motor mounting bracket 15. During installation, the motor fixing bolt 14 passes through the drive motor 4, the bottom base plate 3 and the drive motor mounting bracket 15 in sequence and is tightened on the fixing nut. The motor fixing bolt can be passed from bottom to top, or can be set from bottom to top. The fixing nut can also be welded on the drive motor mounting bracket or set separately as needed.

[0031] The specific structure of the step-locking assembly includes a step-locking motor 7 arranged below the bottom base plate 3, a lock pin 9 arranged below the bottom base plate 3 through a lock pin bracket 8, a gear hole for realizing gear adjustment is arranged on the driven gear plate 6, and the upper end of the lock pin 9 can be inserted into the gear hole after passing through the bottom base plate 3. In order to realize the up and down movement of the lock pin so as to be inserted or not inserted into the gear hole, the lower end of the lock pin 9 is provided with an unlocking cable 10 for connecting with the output shaft of the step-locking motor 7 through the lock pin bracket 8, and the lock pin and the bottom base plate, and the lock pin and the lock pin bracket are all arranged as sliding connections, and a return spring 11 located between the lock pin bracket 8 and the bottom base plate 3 is arranged on the outer sleeve of the lock pin 9. In the initial state, the locking pin can extend into the shift hole under the action of the return spring. When it needs to be rotated, the step-locking motor works to wrap the unlocking cable around the output shaft, thereby moving the locking pin downward. After rotating into place, the step-locking motor works in the reverse direction to prevent the unlocking cable from loosening, and the locking pin is inserted into the shift hole under the action of the return spring.

[0032] In order to prevent the lock pin from moving excessively, a circle of limiting protrusions 9a is provided near the upper end of the lock pin 9 to prevent the lock pin 9 from pressing against the movable turntable 2 after moving excessively.

[0033] In order to facilitate replacement after disassembly, a motor notch 2a is provided at the installation position of the movable turntable 2 corresponding to the drive motor 4 and the stepless unlocking motor, and the motor notch 2a is equipped with a motor dust cover 16.

[0034] In order to facilitate the installation of the entire electric turntable, an upper lap frame 19 for installing the rotating parts on the electric turntable and a lower lap frame 20 for installing the electric turntable are also provided, and the upper lap frame 19 is arranged above the movable turntable 2, and the lower lap frame 20 is arranged below the bottom base plate 3. A plurality of lower hooks 20a are arranged on the top surface of the lower lap frame 20, and an upper hook 19a corresponding to the lower hook 20a is arranged on the bottom surface of the upper lap frame 19, and the upper hook 19a and the lower hook 20a can be hooked together with a rotation adjustment gap, that is, although the upper and lower hooks are hooked with each other, they do not contact each other, and when the lap frame is deformed by collision, the hooks interact with each other to enhance the peeling strength requirement of the turntable.

Claims

1. An electric turntable with a step-by-step automatic locking function, characterized in that: The invention comprises a fixed pressure plate (1), a movable rotating plate (2) and a bottom base plate (3) which are arranged in sequence from top to bottom, wherein a rotation component for realizing the relative rotation of the movable rotating plate (2) with respect to the fixed pressure plate (1) and the bottom base plate (3) and a step-by-step locking component for realizing automatic locking and unlocking of the movable rotating plate (2) are arranged between the bottom base plate (3) and the movable rotating plate (2); It is also equipped with an upper lap frame (19) for installing rotating parts on the electric turntable and a lower lap frame (20) for installing the electric turntable. The upper lap frame (19) is arranged above the movable turntable (2), and the lower lap frame (20) is arranged below the bottom base plate (3). A plurality of lower hooks (20a) are arranged on the top surface of the lower lap frame (20), and an upper hook (19a) corresponding to the lower hook (20a) is arranged on the bottom surface of the upper lap frame (19), and the upper hook (19a) and the lower hook (20a) can be hooked together with a rotation adjustment gap.

2. The electric turntable with step-by-step automatic locking function according to claim 1, characterized in that: At least one arc-shaped self-lubricating wear-resistant sliding block (17) for reducing friction is provided between the movable rotating disk (2) and the bottom base disk (3), and between the movable rotating disk (2) and the fixed pressure disk (1), and the arc-shaped self-lubricating wear-resistant sliding block (17) is fixed on the bottom base disk (3) and the fixed pressure disk (1).

3. The electric turntable with step-by-step automatic locking function according to claim 1, characterized in that: The movable turntable (2) comprises a toothed plate (2b) and a press plate (2c) which are spaced apart from each other. The outer side of the toothed plate (2b) is connected to the inner side of the press plate (2c) via a radially arranged connecting plate (2d). A first circular arc (2e) transitions between the connecting plate (2d) and the toothed plate (2b) and between the connecting plate (2d) and the press plate (2c). An upward radial flange (1a) is provided on the inner side of the fixed press plate (1), and a second circular arc (1b) transitions between the radial flange (1a) and the fixed press plate (1).

4. The electric turntable with step-by-step automatic locking function according to claim 3, characterized in that: The movable turntable (2) is provided with a plurality of gap elimination blocks (18) in the shape of "7" for eliminating the rotational gap between the fixed pressure plate (1) and the movable turntable (2); the end of the horizontal section of the gap elimination block (18) is provided with a mounting clamping block (18a) for realizing the installation of the gap elimination block; the bottom of the vertical section of the gap elimination block (18) is provided with an outward gap flange (18b), and the gap flange (18b) is located between the second circular arc (1b) and the first circular arc (2e) on the lower side; and the inner and outer sides of the vertical section of the gap elimination block (18) are provided with contact protrusions (18c) for contacting corresponding components.

5. The electric turntable with step-by-step automatic locking function according to claim 1, characterized in that: The rotating assembly comprises a driving motor (4) arranged at the bottom of a bottom base plate (3) via a mounting structure, a driving gear (5) being arranged at the output end of the driving motor (4), and the upper end of the driving gear (5) passing through the bottom base plate (3), a circle of mounting protrusions (3a) being arranged at the middle of the bottom base plate (3), and a driven gear plate (6) being arranged on the outer sleeve of the mounting protrusions (3a) and being capable of meshing with the driving gear (5).

6. The electric turntable with step-by-step automatic locking function according to claim 5, characterized in that: The step-type locking assembly comprises a step-type locking motor (7) arranged below a bottom base plate (3); a locking pin (9) is arranged below the bottom base plate (3) via a locking pin bracket (8); a gear hole for realizing gear adjustment is arranged on the driven gear plate (6); the upper end of the locking pin (9) can be inserted into the gear hole after passing through the bottom base plate (3); the lower end of the locking pin (9) passes through the locking pin bracket (8) and is provided with an unlocking cable (10) for connecting to the output shaft of the step-type locking motor (7); the outer sleeve of the locking pin (9) is provided with a return spring (11) located between the locking pin bracket (8) and the bottom base plate (3); and a circle of limiting protrusions (9a) are arranged near the upper end of the locking pin (9) for preventing the locking pin (9) from pressing against the movable rotating disk (2) after the transition of movement.

7. The electric turntable with step-by-step automatic locking function according to claim 5, characterized in that: The mounting structure comprises a motor fixing bolt (14) and a drive motor mounting bracket (15) arranged between the bottom base plate (3) and the movable turntable (2); the drive motor mounting bracket (15) is provided with an output shaft supporting hole for inserting the output shaft of the drive motor (4); the motor fixing bolt (14) passes through the drive motor (4), the bottom base plate (3) and the drive motor mounting bracket (15) in sequence and is then tightened onto a fixing nut.

8. The electric turntable with step-by-step automatic locking function according to claim 5, characterized in that: A motor notch (2a) is provided on the movable turntable (2) at a location corresponding to the installation position of the drive motor (4), and the motor notch (2a) is equipped with a motor dust cover (16).

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