A new electric table board

Abstract

The application discloses a novel electric table board, which comprises a table board mechanism arranged at one end of a guide rod mechanism, a driving mechanism connected with the other end of the guide rod mechanism, and the guide rod mechanism is driven to rotate by the driving mechanism, so as to drive the table board mechanism to push out or fold, and complete the rotating and folding movement of the table board mechanism. The guide rod mechanism is arranged, so that the folding, rotating and telescopic storage functions of the table board mechanism are realized.

Description

Technical Field

[0001] This invention relates to the field of electric tables for automotive interiors, and particularly to a novel electric table. Background Technology

[0002] Currently, existing car tray tables are generally operated manually, requiring considerable force to remove and use, posing a risk of pinching fingers and accidental injury; or they use electric tray tables driven by dual motors, which have a complex structure, reduce the overall durability of the parts, and are also inconvenient to maintain.

[0003] The "Electric Table for Vehicles" published in Chinese Utility Model Announcement No. CN210852162U consists of a table, side panels, a sliding system, a support system, and a drive system. The table can be extended vertically and horizontally with a single button control. In use, the table automatically extends and retracts via a motor and cable traction. When not in use, the table is concealed in the armrest. The compact motor arrangement significantly reduces space requirements. A support linkage ensures the table is self-locking in its active position. While the motor-driven and cable-traction structure is simple, it cannot achieve complete table rotation and folding, making it inconvenient for vehicle layout.

[0004] The Chinese utility model announcement CN206426897U discloses a "Vehicle-mounted Folding Table Structure," which folds and is placed inside the armrest box of a car. This vehicle-mounted folding table structure includes at least one set of table assemblies; each table assembly includes a table panel, a tensioning structure connecting the table panel and the armrest box; one end of the tensioning structure is rotatably mounted on the armrest box, and during rotation, the table panel extends into or out of the armrest box; the other end of the tensioning structure is rotatably connected to the table panel, which can be flipped and rotated relative to the tensioning structure. Although it achieves the functions of flipping and rotating for storage, it requires manual operation by the passenger. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a new type of electric table that is inconvenient for the overall vehicle arrangement due to the inconvenience of the existing electric table's overall rotation and folding.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: A new type of electric tabletop includes: A tabletop mechanism is set at one end of a guide rod mechanism; A drive mechanism connected to the other end of the guide rod mechanism; The guide rod mechanism is driven to rotate by the drive mechanism, thereby causing the tabletop mechanism to extend or retract, completing the rotational opening and closing motion of the tabletop mechanism.

[0007] In a preferred embodiment of the present invention, the guide rod mechanism is a compound crank-slider mechanism.

[0008] In a preferred embodiment of the present invention, the compound crank-slider mechanism includes at least one rocker mechanism, the two ends of which are respectively connected to the table mechanism and the drive mechanism.

[0009] In a preferred embodiment of the present invention, the compound crank-slider mechanism includes at least a multi-link mechanism, the two ends of which are respectively connected to the table mechanism and the drive mechanism.

[0010] In a preferred embodiment of the present invention, the compound crank-slider mechanism consists of a rocker mechanism and a multi-link mechanism, the rocker mechanism and the multi-link mechanism are cross-connected, and the two ends of the rocker mechanism and the multi-link mechanism are respectively connected to the table mechanism and the drive mechanism.

[0011] In a preferred embodiment of the present invention, the guide rod mechanism consists of a support plate, a first connecting rod, a slider, and a second connecting rod; The two ends of the support plate are respectively connected to the drive mechanism and the table mechanism; a slider groove is also provided on the support plate, and the slider is disposed in the slider groove and can slide freely in the slider groove; One end of the first connecting rod is connected to the drive mechanism shaft, and the other end is connected to the slider shaft. One end of the second connecting rod is connected to the slider, and the other end is connected to the table mechanism; The support plate serves as the rocker mechanism, rotating under the drive mechanism. The first link, the slider, and the second link constitute the multi-link mechanism to control the extension and retraction of the tabletop mechanism.

[0012] In a preferred embodiment of the present invention, it further includes: A slider connecting plate is disposed on the rear side of the slider and is embedded in the slider grooves on both sides of the slider long groove. The second connecting rod is hinged to the front side of the slider, and the first connecting rod is axially connected to the rear side of the slider connecting plate.

[0013] In a preferred embodiment of the present invention, a toothed plate is provided on the end of the support plate, the toothed plate is axially connected to the drive mechanism and drives the drive mechanism through a toothed ring arranged on the toothed plate.

[0014] In a preferred embodiment of the present invention, the end of the support plate is provided with a fine groove, and the toothed plate is embedded in the fine groove and fixed by fasteners.

[0015] In a preferred embodiment of the present invention, the gear ring is a semi-circular incomplete gear ring, with a first stop point at one end of the gear ring in the circumferential direction and a second stop point at the other end. The first stop point and the second stop point form physical stops for the transmission between the drive mechanism and the support plate, thereby limiting the rotational stroke of the support plate.

[0016] In a preferred embodiment of the present invention, a downwardly protruding slider positioning block is provided at the lower end of the slider, and the lower side of the slider positioning block is provided with a chamfer feature.

[0017] In a preferred embodiment of the present invention, the table mechanism consists of a small table and a fixing frame, the support plate is hinged to the side of the small table, the second connecting rod is hinged to the bottom of the small table, and the fixing frame is disposed at the bottom of the small table.

[0018] In a preferred embodiment of the present invention, a groove is provided at the bottom of the small table, and when the table mechanism is in the retracted state, the groove is used to accommodate the second connecting rod and the slider.

[0019] In a preferred embodiment of the present invention, the fixing frame further includes a fixing clamp and a torsion spring, the torsion spring being disposed between the fixing clamps to cause the fixing clamps to clamp the slider positioning block.

[0020] In a preferred embodiment of the present invention, the upper side of the fixing clip is also provided with a chamfered feature.

[0021] In a preferred embodiment of the present invention, the small table is a flip-up structure.

[0022] In a preferred embodiment of the present invention, the driving mechanism consists of a base plate and a gear motor. The gear motor is mounted on the inner side of the base plate, and the driving gear on the gear motor passes through the base plate and extends outward to drive the guide rod mechanism. The toothed plate is axially connected to the base plate, and the toothed ring meshes with the drive gear. One end of the first connecting rod is axially connected to the base plate, and its axial connection point is located on the upper side of the gear ring and the drive gear.

[0023] In a preferred embodiment of the present invention, it further includes: A first slide rail is disposed on the substrate; A cover plate, wherein a second slide rail and a lead screw motor are provided on the cover plate; Driven by the lead screw motor, the substrate completes lateral telescopic movement guided by the first and second slide rails.

[0024] In a preferred embodiment of the present invention, a lug is provided on the inner side of the substrate, and a push block is fixed on the lug. The push block cooperates with the lead screw motor to complete the telescopic movement of the substrate through the principle of nut and lead screw.

[0025] In a preferred embodiment of the present invention, the cover plate is provided with the base plate, the gear motor, the guide rod mechanism and the table mechanism on both sides respectively, and the number of lead screw motors is two for driving the base plates on both sides to extend and retract respectively.

[0026] The beneficial effects of this invention are as follows: The present invention provides a novel electric tabletop that achieves the functions of folding, rotating, and retracting storage of the tabletop through a guide rod mechanism composed of a crank slider and multiple connecting rods. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0028] Figure 1 This is an overall schematic diagram of the present invention.

[0029] Figure 2 This is the invention Figure 1 Exploded view.

[0030] Figure 3 This is a side view of the support plate of the present invention. Figure 1 .

[0031] Figure 4 This is a side view of the support plate of the present invention. Figure 2 .

[0032] Figure 5 This is the invention Figure 4 Exploded view.

[0033] Figure 6 This is a schematic diagram of the support plate and slider of the present invention.

[0034] Figure 7 This is the invention Figure 6 A cross-sectional view of AA.

[0035] Figure 8 This is a schematic diagram showing the relationship between the first connecting rod, the outer base plate, and the toothed plate of the present invention.

[0036] Figure 9 This is the invention Figure 8 Exploded view.

[0037] Figure 10 This is the invention Figure 8 Another side view.

[0038] Figure 11 This is a schematic diagram of the assembly relationship between the first connecting rod, outer base plate, toothed plate, and support plate of the present invention. Figure 1 .

[0039] Figure 12 This is the invention Figure 11 Side view (with inner and outer substrates hidden).

[0040] Figure 13 This is a schematic diagram of the assembly relationship between the first connecting rod, outer base plate, toothed plate, and support plate of the present invention. Figure 2 .

[0041] Figure 14 This is a schematic diagram of the rotating operation of the support plate of the present invention.

[0042] Figure 15 This is a simplified structural diagram of the support plate, the first connecting rod, and the slider of the present invention.

[0043] Figure 16 This is a schematic diagram of the overall tabletop mechanism of the present invention.

[0044] Figure 17 This is the invention Figure 16 Exploded view.

[0045] Figure 18 This is a schematic diagram of the tabletop mechanism and guide rod mechanism of the present invention in a folded state.

[0046] Figure 19a and Figure 19b This is the invention Figure 18 Enlarged view and perspective view of the fixed plate.

[0047] Figure 20 This is an exploded view of the fixing plate of the present invention.

[0048] Figure 21 This is a schematic diagram of the tabletop assembly of the present invention.

[0049] Figure 22 This is a schematic diagram of the unfolded operation of the guide rod mechanism and tabletop mechanism of the present invention.

[0050] Figure 23 This is a schematic diagram of the fully extended state of the drive mechanism, guide rod mechanism, and table mechanism of the present invention.

[0051] Figure 24 This is a simplified structural diagram of the folded state of the drive mechanism, guide rod mechanism, and table mechanism of the present invention.

[0052] Figure 25 This is a simplified structural diagram of the drive mechanism, guide rod mechanism, and tabletop mechanism of the present invention in their unfolded state.

[0053] Figure 26 This is an exploded view of the drive mechanism, guide rod mechanism, and table mechanism components of the present invention.

[0054] Figure 27 This is a schematic diagram of the drive mechanism structure of the present invention.

[0055] Figure 28 This is a schematic diagram of the structure of the lead screw motor, push block and outer base plate of the present invention.

[0056] Figure 29 This is an exploded view showing the installation of the lead screw motor and push block of the present invention.

[0057] Figure 30 This is a schematic diagram of the drive mechanism structure of the present invention. Figure 2 .

[0058] Figure 31 This is an assembly diagram of the first and second slide rails of the present invention. Figure 30 (BB sectional view).

[0059] Figure 32 This is a schematic diagram of the drive mechanism of the present invention, which includes a guide rod mechanism and a tabletop mechanism mounted on both sides of the drive.

[0060] Figure 33 This is a schematic diagram of the drive and dog drive guide rod mechanism and table mechanism of the present invention.

[0061] Figure 34 This is a schematic diagram of the drive and dog drive guide rod mechanism and table mechanism of the present invention. Figure 2 .

[0062] Figure 35 This is an exploded view of the drive mechanism of the present invention, showing the guide rod mechanism and the table mechanism mounted on both sides of the drive.

[0063] Figure 36 A schematic diagram showing the installation of two lead screw motors in the drive mechanism of this invention. Detailed Implementation

[0064] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0065] The detailed structure of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0066] refer to Figure 1A novel electric tabletop mainly comprises: a tabletop mechanism 300, a guide rod mechanism 200, and a drive mechanism 100. The guide rod mechanism 200 is actually a compound crank-slider mechanism. This compound crank-slider mechanism is a rocker mechanism and / or a multi-link mechanism.

[0067] The composite crank-slider mechanism of this specific embodiment is composed of a rocker mechanism and a multi-link mechanism. It drives the support plate 210 in the guide rod mechanism 200 to rotate as a rocker mechanism through the drive mechanism 100, thereby driving the multi-link mechanism composed of the first link 230, the slider 220 and the second link 310 to push the table mechanism 300 to unfold.

[0068] refer to Figures 2 to 7 The guide rod mechanism 200 consists of a support plate 210, a first connecting rod 230, a slider 220, and a second connecting rod 310. One end of the support plate 210 is pivotally mounted on the outer base plate 110 of the drive mechanism 100, while the other end is hinged to the side of the small table 320 of the table mechanism 300. The support plate 210 also has a slider groove 211. The slider 220 includes a slider connecting plate 223 located at its rear. By embedding the slider connecting plate 223 into the slider groove 211a on the long side of the slider groove 211, the slider 220 can slide freely within the slider groove 211.

[0069] A groove 212 is formed at the end of the support plate 210, and a toothed plate 250 is fitted onto the support plate 210 through the groove 212 and fasteners. A toothed plate hole 251 is arranged on the toothed plate 250, and an incomplete toothed ring 252 is designed circumferentially around the toothed plate hole 251. A first stop point 252a is provided at one end of the toothed ring 252 circumferentially, and a second stop point 252b is provided at the other end. The first stop point 252a and the second stop point 252b form physical stops during the rotation of the toothed ring 252. A pin 240 is fixed to the outer base plate 110 through the toothed plate hole 251 and transmits power to the drive mechanism 100 through the toothed ring 252, thereby realizing the rotation of the support plate 210.

[0070] refer to Figures 8 to 13 One end of the first connecting rod 230 passes through the outer substrate 110 and is axially connected to the inner substrate 130. Its axial connection point is located on the upper side of the toothed plate hole 251. The other end of the first connecting rod 230 is axially connected to the slider connecting plate 223 on the rear side of the slider 220.

[0071] Reference Figure 14 and Figure 15During the reset process, the gear ring 252 meshes and rotates with the drive gear 121. When the first stop 252a engages with the drive gear 121 of the drive mechanism 100, the drive gear 121 is stalled, the support plate 210 returns to its initial position and stops rotating, and the slider 220 is located at the lowest point of the slider groove 211. When the drive gear 121 drives the support plate 210 to rotate, the first connecting rod 230 pushes the slider 220 upward in the slider groove 211. When the support plate 210 is in the unfolded position, the second stop 252b engages with the drive gear 121, preventing the drive gear 121 from driving the support plate 210 to continue rotating, and the slider 220 slides to the highest point of the slider groove 211 under the push of the first connecting rod 230.

[0072] For reference Figures 16 to 20 One end of the second connecting rod 310 is hinged to the slider lug 222 on the slider 220; the other end is hinged to the end of the groove 321 at the bottom of the small table 320 near the support plate 210. When the table mechanism 300 is in the retracted state, the groove 321 is used to accommodate the second connecting rod 310 and the slider 220. The slider connecting plate 223 is fixed to the slider 220 by a fastener. The slider connecting plate 223 and the slider 220 form a geometrically closed sliding pair structure with the slider long groove 211 and the slider slide groove 211a. Therefore, even if it is fixed at a single point, there will be no displacement between the slider connecting plate 223 and the slider 220. A downwardly protruding slider positioning block 221 is provided at the lower part of the slider 220. The lower side of the slider positioning block 221 has a chamfered feature 221a, which makes it easier for the slider positioning block 221 to be inserted into the gap of other mechanisms. The bottom of the small table 320 is also provided with a fixing frame 323. The fixing frame 323 contains a fixing clamp 323a and a torsion spring 323b. The torsion spring 323b is positioned in the middle of the fixing clamp 323a, ensuring that the fixing clamp 323a always has a centripetal clamping tendency. When the table mechanism 300 retracts and folds under the drive of the guide rod mechanism 200, the slider 220 moves towards the bottom of the slider slot 211, and finally the slider positioning block 221 is engaged in the fixing clamp 323a and tightened therein, thereby preventing the table mechanism 300 from shaking during vehicle operation. To make the slider positioning block 221 engage more smoothly in the fixing clamp 323a, a chamfered feature 323c is also provided on the upper side of the fixing clamp 323a.

[0073] refer to Figure 21 In one embodiment of the present invention, the small table 320 is a flip-up structure, which is formed by folding two table panels 322 connected by hinges.

[0074] refer to Figure 22 and Figure 25 When the slider 220 moves under the push of the first connecting rod 230, it drives one end of the second connecting rod 310 to move upward, thereby pushing the small table 320 to unfold.

[0075] refer to Figures 26 to 31 The drive mechanism 100 includes an outer substrate 110, an inner substrate 130, and a gear motor 120. The gear motor 120 is mounted on the inner substrate 130, and the drive gear 121 on the gear motor 120 extends outward through the inner substrate 130 and the outer substrate 110 to mesh with the gear ring 252. First slide rails 131 are provided on the front and rear sides of the inner substrate 130. A cover plate 140 is located below the center armrest of the car (not shown in the figure), and a lead screw motor 150 is provided on the inner side of the cover plate 140. Second slide rails 141 are also provided on its front and rear sides. The first slide rail 131 is a concave rail, and the second slide rail 141 is a convex rail. The two are coupled to each other so that the entire substrate is mounted on one side of the cover plate 140 via the slide rails. An upper lug 161 is provided on the inner substrate 130. Multiple mounting holes 162 are arranged on the lug 161 along the longitudinal direction. The push block 151 is fixed on the lug 161 through the mounting holes 162. The design of multiple mounting holes 162 allows the push block 151 to have multiple different mounting positions in the longitudinal direction.

[0076] Reference Figure 33 The lead screw motor 150 is fixed by a motor fixing plate 152 and cooperates with the push block 151 in the structure of lead screw nut, driving the base plate to move laterally along the slide rail, so that the table mechanism 300 can be retracted under the armrest in the retracted state.

[0077] refer to Figures 34 to 36 In another embodiment of the present invention, an inner substrate 130 and an outer substrate 110 are respectively provided on both sides of the cover plate 140, and a gear motor 120, a guide rod mechanism 200 and a table mechanism 300 are arranged on the substrate. Two lead screw motors 150 are arranged under the cover plate 140, and two push blocks 151 are arranged on the lugs 161 according to the position of the lead screw motors 150, respectively for driving the extension and retraction of the substrates on both sides of the cover plate 140.

Claims

1. A novel electric tabletop, characterized in that, include: A tabletop mechanism is set at one end of a guide rod mechanism; A drive mechanism connected to the other end of the guide rod mechanism; The guide rod mechanism is driven to rotate by the drive mechanism, thereby driving the tabletop mechanism to extend or retract, completing the rotational opening and closing motion of the tabletop mechanism; The driving mechanism includes a base plate and a first slide rail disposed on the base plate; A cover plate, wherein a second slide rail and a lead screw motor are provided on the cover plate; Driven by the lead screw motor, the base plate moves laterally via the first and second slide rails, allowing the tabletop mechanism to be retracted under the armrest in the retracted state. The guide rod mechanism is a compound crank-slider mechanism; the compound crank-slider mechanism consists of a rocker mechanism and a multi-link mechanism, which are cross-connected. The two ends of the rocker mechanism and the multi-link mechanism are respectively connected to the table mechanism and the drive mechanism; the guide rod mechanism consists of a support plate, a first connecting rod, a slider, and a second connecting rod; the two ends of the support plate are respectively connected to the drive mechanism and the table mechanism; a long slider groove is also provided on the support plate, and the slider is disposed in the long slider groove and can slide freely in the long slider groove; one end of the first connecting rod is axially connected to the drive mechanism, and the other end is axially connected to the slider; one end of the second connecting rod is connected to the slider, and the other end is connected to the table mechanism; the support plate, as the rocker mechanism, rotates under the drive mechanism, and the first connecting rod, the slider, and the second connecting rod constitute the multi-link mechanism to control the extension and retraction of the table mechanism.

2. The novel electric tabletop as described in claim 1, characterized in that, Also includes: A slider connecting plate is disposed on the rear side of the slider and is embedded in the slider grooves on both sides of the slider long groove. The second connecting rod is hinged to the front side of the slider, and the first connecting rod is axially connected to the rear side of the slider connecting plate.

3. The novel electric tabletop as described in claim 2, characterized in that, A toothed plate is provided at the end of the support plate. The toothed plate is axially connected to the drive mechanism and is transmitted to the drive mechanism through a toothed ring arranged on the toothed plate.

4. A novel electric table as described in claim 3, characterized in that, The end of the support plate is provided with a fine groove, and the toothed plate is embedded in the fine groove and fixed by fasteners.

5. A novel electric table as described in claim 4, characterized in that, The gear ring is a semi-circular incomplete gear ring. One end of the gear ring in the circumferential direction is provided with a first stop point, and the other end is provided with a second stop point. The first stop point and the second stop point form physical stops for the transmission between the drive mechanism and the support plate, limiting the rotational stroke of the support plate.

6. A novel electric table as described in claim 5, characterized in that, The lower end of the slider is provided with a downward protruding slider positioning block, and the lower side of the slider positioning block is provided with a chamfer feature.

7. A novel electric table as described in claim 6, characterized in that, The table mechanism consists of a small table and a fixed frame. The support plate is hinged to the side of the small table, the second connecting rod is hinged to the bottom of the small table, and the fixed frame is located at the bottom of the small table.

8. A novel electric table as described in claim 7, characterized in that, A groove is provided at the bottom of the small table. When the table mechanism is in the retracted state, the groove is used to accommodate the second connecting rod and the slider.

9. A novel electric table as described in claim 7, characterized in that, The fixing frame also includes a fixing clamp and a torsion spring, with the torsion spring disposed between the fixing clamps to cause the fixing clamps to clamp the slider positioning block.

10. A novel electric table as described in claim 9, characterized in that, The upper side of the fixing clip is also provided with a chamfered feature.

11. A novel electric table as described in claim 7, characterized in that, The small table has a flip-up structure.

12. A novel electric table as described in claim 3, characterized in that, The driving mechanism also includes a gear motor, which is mounted on the inner side of the base plate. The drive gear on the gear motor passes through the base plate and extends outward to drive the guide rod mechanism. The gear plate is axially connected to the base plate, and the gear ring meshes with the drive gear. One end of the first connecting rod is axially connected to the base plate, and its shaft connection point is located on the upper side of the gear ring and the drive gear.

13. A novel electric table as described in claim 12, characterized in that, The substrate has a lug on its inner side, and a push block is fixed on the lug. The push block cooperates with the lead screw motor to complete the extension and retraction of the substrate through the principle of the nut and lead screw.

14. A novel electric table as described in claim 12, characterized in that, The cover plate is provided with a base plate, a gear motor, a guide rod mechanism and a table mechanism on both sides respectively, and there are two lead screw motors for driving the base plates on both sides to extend and retract respectively.

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