Vehicle-mounted lifting table capable of being hidden

Abstract

The utility model discloses a vehicle-mounted lifting table capable of being hidden, and belongs to the field of vehicle-mounted equipment, the vehicle-mounted lifting table capable of being hidden comprises a table plate and a driving machine, the driving machine comprises an auxiliary storage frame and a main storage frame, the table plate is connected with the power output end of the driving machine and can move relative to the auxiliary storage frame in a plane mode, and the main storage frame is connected with the main storage frame. The auxiliary storage frame is in sliding fit with the main storage frame, and the auxiliary storage frame can be stored in the main storage frame. According to the vehicle-mounted lifting table capable of being hidden, the table plate can be folded and unfolded, the vehicle-mounted lifting table has the use height suitable for passengers, and space is saved as much as possible when the vehicle-mounted lifting table is folded.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vehicle-mounted equipment, especially to a vehicle-mounted lifting hidden table. BACKGROUND

[0002] With the rapid development of the automobile industry, the automobile not only carries and transports work, but gradually expands into a mobile home, so as to facilitate users to have a better life experience when traveling, the vehicle-mounted storage table plate is more and more loved by consumers because it occupies less space and can be hidden in the seat support of the vehicle, the quality standard of the vehicle-mounted product is usually more stringent than that of ordinary products, how to ensure the stability and reliability of the storage table plate is crucial.

[0003] Chinese patent document CN103223888A discloses a wall-mounted hidden flat plate type electric folding table. It comprises a vertical side body, a flat table top movably connected to the upper end of the side body, an opening and closing mechanism provided in the side body and movably connected to the flat table top, the opening and closing mechanism comprising a lifting mechanism and a supporting mechanism, the lifting mechanism and the supporting mechanism being movably connected, and the supporting mechanism being movably connected to the flat table top. The above-mentioned wall-mounted hidden flat plate type electric folding table can theoretically realize the unfolding or storage of the flat table top through the expansion of the telescopic rod, but such a structure is prone to damage due to misalignment when used in an automobile environment, and the failure rate is extremely high. UTILITY MODEL CONTENT

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a vehicle-mounted lifting hidden table which can not only realize the storage and unfolding of the table plate, but also has a use height suitable for passengers and saves space as much as possible when stored.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a vehicle-mounted lifting hidden table, including table plate and drive machine, the drive machine includes vice storage frame and main storage frame, the table plate is connected with the power output end of the drive machine, can be relative vice storage frame plane motion, vice storage frame and main storage frame sliding fit, vice storage frame can be stored in main storage frame.

[0007] The further technical scheme of the utility model lies in that the vice storage frame comprises a moving frame, a lifting plate and a first driver, the lifting plate is slidably connected with at least one first sliding rail on the moving frame, the power output end of the first driver is connected with the lifting plate, and the lifting plate is connected with the table plate.

[0008] A further technical solution of this utility model is that the first driver includes a first motor, a first gearbox, a first screw, and a first nut. The power output end of the first motor is connected to the input end of the first gearbox, the output end of the first gearbox is connected to the first screw, the first screw and the first nut are threadedly engaged, and the first nut is fixed on the lifting plate.

[0009] A further technical solution of this utility model is that the movable frame includes a movable base, two movable side plates and a movable top plate. The movable base, the two movable side plates and the movable top plate are connected end to end to form a rectangular frame. A first slide rail is fixed inside the movable side plate, and the lifting plate slides in cooperation with the first slide rail.

[0010] A further technical solution of this utility model is that the main storage frame includes a fixed frame and a second driver, the movable base of the movable frame is slidably engaged with the fixed frame, and the second driver drives the movable base to slide along the second slide rail inside the fixed frame.

[0011] A further technical solution of this utility model is that the second driver includes a second motor, a second gearbox, a second screw, and a second nut. The power output end of the second motor is connected to the input end of the second gearbox, the output end of the second gearbox is connected to the second screw, the second screw is threadedly engaged with the second nut, and the second nut is fixed on the movable base by a nut seat. After the second motor rotates, it drives the second screw to rotate through the second gearbox.

[0012] A further technical solution of this utility model is that the fixing frame includes a fixed base, two fixed side plates and two fixed railings. The fixed base and the two fixed side plates are connected end to end to form a U-shaped frame that can accommodate the secondary storage frame. The two fixed railings are connected to the ends of the two fixed side plates to form a rectangular opening that allows the secondary storage frame to extend and retract. A part of the secondary storage frame extends into the U-shaped frame from the rectangular opening.

[0013] A further technical solution of this utility model is that, when the vehicle-mounted liftable and retractable table is in the retracted state, the first screw is close to the second screw, the first screw and the second screw are located in the middle of the main storage frame, and the first screw is located on one side of the second screw. The first motor is located on the left side of the first screw and extends away from the second screw, and the second motor is located on the right side of the second screw and extends away from the first screw.

[0014] A further technical solution of this utility model is that the upper plane of the nut seat is higher than the movable base, and the lifting plate is provided with a positioning hole, into which the second screw and the top of the nut seat can extend.

[0015] A further technical solution of this utility model is that it also includes a winding shaft, a limiting block, and a connecting arm. The winding shaft is fixed on the drive motor, at least one side of the table board overlaps the winding shaft, the limiting block is connected to the table board, and the limiting block is provided with at least one hinge point. One end of the connecting arm is hinged to the hinge point, and the other end of the connecting arm is connected to the lifting plate of the drive motor.

[0016] The beneficial effects of this utility model are as follows:

[0017] The vehicle-mounted liftable and retractable table provided by this utility model is equipped with a tabletop and a drive motor. The tabletop is connected to the power output end of the drive motor. The drive motor includes a secondary storage frame and a main storage frame, which are slidably engaged. The secondary storage frame can be stored inside the main storage frame. The tabletop can move in a plane relative to the secondary storage frame. The secondary storage frame can be raised or lowered relative to the main storage frame. The tabletop can be unfolded or retracted relative to the secondary storage frame. This allows the vehicle-mounted liftable and retractable table provided in this embodiment to be smaller in size than existing vehicle-mounted tables, while ensuring that the tabletop has a good usable height and a large unfolded area. Attached Figure Description

[0018] Figure 1 This is a first perspective view of the vehicle-mounted liftable and retractable table provided in Embodiment 1 of this patent;

[0019] Figure 2 This is a second perspective view of the vehicle-mounted liftable and retractable table provided in Embodiment 1 of this patent, with the tabletop in an unfolded state;

[0020] Figure 3 This is a third perspective view of the vehicle-mounted liftable and retractable table provided in Embodiment 1 of this patent, with the tabletop in an unfolded state;

[0021] Figure 4 This is a fourth perspective view of the vehicle-mounted liftable and retractable table provided in Embodiment 1 of this patent, with the tabletop in a retracted state;

[0022] Figure 5 This is a partial schematic diagram of the vehicle-mounted liftable and retractable table provided in Embodiment 1 of this patent;

[0023] Figure 6 This is a partial schematic diagram of the vehicle-mounted liftable and retractable table provided in Embodiment 2 of this patent;

[0024] Figure 7This is a partial schematic diagram of the vehicle-mounted liftable and retractable table provided in Embodiment 3 of this patent;

[0025] Figure 8 This is a partial schematic diagram of the vehicle-mounted liftable and retractable table provided in Embodiment 4 of this patent.

[0026] In the picture:

[0027] 1. Tabletop; 2. Rotating axis; 3. Limiting block; 31. Hinge point; 4. Connecting arm; 511. Limiting stop; 32. Limiting notch; 11. U-shaped frame strip; 12. Panel; 51. Cover; 52. Secondary storage frame; 53. Main storage frame; 521. Moving frame; 522. Lifting plate; 523. First actuator; 531. Fixed frame; 533. Second actuator; 211. First slide rail; 311. Second slide rail; 54. Horizontal actuator; 111. Fixed beam; 33. Limiting rod; 1 12. Limiting groove; 113. First magnetic component; 34. Second magnetic component; 231. First motor; 232. First gearbox; 233. First screw; 234. First nut; 601. Movable base; 602. Movable side plate; 603. Movable top plate; 801. Fixed base; 802. Fixed side plate; 803. Fixed guardrail; 701. Second motor; 702. Second gearbox; 703. Second screw; 704. Second nut; 705. Nut seat; 100. Locating hole. Detailed Implementation

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 5As shown, the vehicle-mounted lifting and retractable table provided in this embodiment includes a tabletop 1, a pivot 2, a limiting block 3, a connecting arm 4, and a drive motor. The pivot 2 is fixed to the drive motor, specifically to the fixed beam 111 of the drive motor. Pivots 2 are typically arranged in pairs, each fixed to a pair of fixed beams 111. The pivots 2 are arranged in pairs to fit the surface of the tabletop 1. At least one side of the tabletop 1 overlaps with the pivot 2; typically, both sides overlap with two symmetrically arranged pivots 2, thus making the tabletop 1 move more stably during planar motion. The limiting block 3 is used to restrict the swaying of the tabletop 1. Since the drive motor is typically a movable drive structure, it is non-movable. The tabletop 1 is not completely locked in place. Therefore, even when the tabletop 1 is fully extended, it is still prone to wobbling and shifting under external force. This not only limits the load-bearing capacity of the tabletop 1 but also easily causes the drive mechanism to shift and become damaged. The limiting block 3 is connected to the tabletop 1. Specifically, the limiting block 3 can be fixed to or fixedly connected to the tabletop 1. When the limiting block 3 moves, it will drive the tabletop 1 to move with it. The limiting block 3 is provided with at least one hinge point 31. One end of the connecting arm 4 is hinged to the limiting block 3, and the other end of the connecting arm 4 is connected to the drive mechanism. The drive mechanism drives the connecting arm 4 to move up and down. The connecting arm 4 drives the tabletop 1 to rotate through the limiting block 3. Shaft 2 performs planar motion. When the drive motor drives the connecting arm 4 to the top, the limiting block 3 moves to the limiting position, thereby limiting the tabletop 1. In specific use, the drive motor drives the connecting arm 4 to move up and down. When the connecting arm 4 moves up and down, it will drive the limiting block 3, which is hinged to each other, to move up and down, thereby driving the tabletop 1 to perform planar motion along the two overlapping axes 2. Planar motion means that the tabletop 1 both translates along the axes 2 and rotates around the axes 2. When the drive motor drives the connecting arm 4 to the top, the rotation of the limiting block 3 is restricted when it moves to the limiting position. The limiting position refers to the position of the limiting stop 511 or the position of the limiting notch 32 provided in other embodiments. Alternatively, the location of the limiting groove 112 or the location of the first magnetic component 113, etc., this embodiment does not limit the form of the limiting. For example, when the limiting block 3 moves to abut against the limiting stop 511, the limiting block 3 moves to the limiting position, that is, the limiting block 3 can no longer rotate, and the table 1 connected to it can no longer rotate, so that the table 1 is difficult to shake after it is unfolded. In actual use scenarios, the vehicle table 1 usually needs to bear weight and withstand a certain impact, such as the impact generated by picking up and putting down things or the impact generated by passenger collision. Therefore, only when the table 1 is almost impossible to shake after it is unfolded can the vehicle table 1 effectively avoid the displacement of the drive motor under the load.

[0030] In order to effectively restrict the rotation of the limit block 3, the vehicle-mounted lifting and retractable table further includes a limit stop 511. The limit stop 511 is fixed to the top of the slide rail of the drive motor. Specifically, the slide rail here can be the first slide rail 211 mentioned below. When the limit block 3 moves to the limit position, the upper surface of the limit block 3 is close to or abuts against the lower surface of the limit stop 511. Due to the restriction of the lower surface of the limit stop 511, the upper surface of the limit block 3 will not be able to rotate after it is attached to the lower surface of the limit stop 511. More preferably, the lower surface of the limiting stop 511 is at the same level as the top of the rotating shaft 2. The rotating shaft 2 itself, in conjunction with the drive motor, has a certain limit on the up-and-down shaking of the table 1, which is the first limit. The lower surface of the limiting stop 511 provides a second limit to the limiting block 3. When the lower surface of the limiting stop 511 and the top of the rotating shaft 2 are at the same level, two limits are provided on the same plane, which will prevent the table 1 from rotating anymore, thereby ensuring that the table 1 provided in this embodiment is almost impossible to shake after unfolding.

[0031] To adapt to different usage scenarios, the tabletop 1 further includes a U-shaped frame 11 and a panel 12. That is, the U-shaped frame 11 and the panel 12 are usually two components with an assembly relationship. In this way, the U-shaped frame 11 can better fit with the shaft 2. The U-shaped frame 11 is usually made of metal and overlaps the shaft 2. The panel 12 is fixed inside the U-shaped frame 11. The panel 12 can be reasonably set according to the requirements of the car manufacturer. For example, the panel 12 can be configured as a walnut board, plastic board, etc.

[0032] A cover 51 is provided on the top of the slide rail of the drive motor. Specifically, the slide rail here can be the first slide rail 211 mentioned below. The top of the first slide rail 211 is provided with a fixed beam 111. The end of the cover 51 is fixed on the fixed beam 111. When the drive motor has at least two symmetrically arranged first slide rails 211, the two ends of the cover 51 are respectively covered on the two fixed beams 111. The cover 51 is located between the two unfolded tabletops 1. The middle part of the cover 51 is a plane. The height of the upper surface of the cover 51 is the same as the height of the upper surface of the two unfolded tabletops 1, so that together with the two tabletops 1, it forms a larger desktop, which is convenient for placing laptops, tableware, etc., and greatly expands the ability of the vehicle-mounted lifting and hiding table to place items. The limit stop 511 is located below the cover 51 and is integrally formed with the cover 51. That is, it can be considered that the solution adopted in this embodiment uses the side wall of the cover 51 as the limit stop 511. This method can not only ensure the aesthetics of the overall desktop, but also reduce the number of parts and help reduce production costs. To ensure a seamless connection between the two tabletops 1 and the cover 51 without any gaps, one side of the panel 12 is narrow and thinner. When the panel 12 is unfolded, the narrow end extends to the bottom of the cover 51, allowing it to penetrate into the cover 51. This ensures that the height of the upper surface of the cover 51 is consistent with the height of the upper surfaces of the two tabletops 1. Furthermore, since one side of the panel 12 extends into the bottom of the cover 51, the connection between the two tabletops 1 and the cover 51 appears as a single tabletop when viewed from above, and no gaps are visible at the connection.

[0033] To ensure that the retractable table in the vehicle has a certain height when unfolded (typically set to a height suitable for passenger use) and to save space as much as possible when folded, the drive mechanism further includes a secondary storage frame 52 and a main storage frame 53. The table 1 can be stored in the secondary storage frame 52, which can be raised and lowered relative to the main storage frame 53. In actual use, the table 1 can be unfolded or folded relative to the secondary storage frame 52. When the table 1 is folded, it is stored in the secondary storage frame 52; when the table 1 is unfolded, it is in a horizontal state and serves as a table. The secondary storage frame 52 can be raised or lowered relative to the main storage frame 53. Specifically, the secondary storage frame 52 can be raised or lowered relative to the main storage frame 53. When the secondary storage frame 52 is lowered to the bottom of the main storage frame 53, the secondary storage frame 52 is stored inside the main storage frame 53. When the secondary storage frame 52 is raised to the top of the main storage frame 53, the secondary storage frame 52 is fully extended. Through the raising and lowering and the unfolding of the table 1, compared with the traditional non-raiseable vehicle electric table, the vehicle-mounted lifting and hiding table provided in this embodiment can be made smaller in size, while ensuring a good working height and a large unfolding area. Further preferably, the secondary storage frame 52 includes a movable frame 521, a lifting plate 522, and a first driver 523. The lifting plate 522 is slidably engaged with at least one first slide rail 211 on the movable frame 521. Preferably, to improve stability during the lifting process, the lifting plate 522 is slidably engaged with at least two first slide rails 211 on the movable frame 521. The power output end of the first driver 523 is connected to the lifting plate 522. The first driver 523 includes a first motor 231, a first gearbox 232, a first screw 233, and a first nut 234. The power output end of the first motor 231 is connected to the input end of the first gearbox 232, and the output end of the first gearbox 232 is connected to the first screw 233. The length direction of the first motor 231 is perpendicular to the first screw 233, and its overall shape is similar to an inverted "L". The first screw 233 and the first nut 234 are threaded together. The first nut 234 is fixed to the lifting plate 522, specifically to the bottom of the lifting plate 522. The movable frame 521 includes a movable base 601, two movable side plates 602, and a movable top plate 603. The two movable side plates 602 are symmetrically distributed and perpendicular to the movable base 601 and the movable top plate 603, respectively. The movable base 601, the two movable side plates 602, and the movable top plate 603 are connected end to end to form a rectangular frame. At least one pair of first slide rails 211 are fixed to the two movable side plates 602 respectively, in a symmetrical distribution. The two ends of the movable top plate 603 are fixed to two symmetrically distributed fixed beams 111 respectively. Each fixed beam 111 is installed on the corresponding movable side plate 602. The first motor 231 and the first gearbox 232 are fixed to the movable base 601 and are fixedly connected to the movable base 601, and can move with the movement of the movable base 601.When the first motor 231 rotates, it drives the first screw 233 to rotate through the first gearbox 232. When the first screw 233 rotates, it drives the first nut 234 to move linearly. The first nut 234 is fixed on the lifting plate 522, so it drives the lifting plate 522 to move linearly up and down, thus realizing the lifting drive of the lifting plate 522. The connecting arm 4 is fixed on the lifting plate 522 and moves with the movement of the lifting plate 522. Furthermore, when the connecting arm 4 moves up and down, it drives the limit block 3 that is hinged to each other to move up and down, thereby driving the table 1 to move in a plane along the two overlapping axes 2. The threaded transmission mechanism composed of the first screw 233 and the first nut 234 has a significant advantage in stability for the vehicle table compared with the push rod mechanism used in the prior art. It is more stable during the lifting process. More importantly, the threaded transmission mechanism is less prone to displacement after long-term use and is more suitable for use in the vehicle environment.

[0034] To facilitate the lifting and lowering movement of the main storage frame 53 driving the secondary storage frame 52, the main storage frame 53 further includes a fixed frame 531 and a second driver 533. The movable base 601 of the movable frame 521 is slidably engaged with the fixed frame 531. Specifically, the second driver 533 drives the movable base 601 to slide along the second slide rail 311 on the inner side of the fixed frame 531, thereby realizing the overall up and down movement of the secondary storage frame 5 relative to the main storage frame 53. Preferably, in order to improve stability during the lifting process, the movable base 601 and at least two second slide rails 311 on the fixed frame 531 are slidably engaged. The power output end of the second driver 533 is connected to the movable base 601. The fixed frame 531 includes a fixed base 801, two fixed side plates 802 and two fixed guardrails 803. The fixed base 801 and the two fixed side plates 802 are connected end to end to form a "U"-shaped frame that can accommodate the secondary storage frame 52. The two fixed guardrails 803 are connected to the top of the two fixed side plates 802 to form a "rectangular opening" that allows the secondary storage frame 52 to extend and retract. A part of the secondary storage frame 52 extends into the "U"-shaped frame from the rectangular opening. The second drive 533 includes a second motor 701, a second gearbox 702, a second screw 703, and a second nut 704. The power output end of the second motor 701 is connected to the input end of the second gearbox 702, and the output end of the second gearbox 702 is connected to the second screw 703. The length direction of the second motor 701 is perpendicular to the second screw 703, and its overall shape is similar to a forward "L". The second screw 703 and the second nut 704 are threaded together. The second nut 704 is mounted on the movable base 601 through a nut seat 705. The second motor 701 and the second gearbox 702 are fixed on the fixed base 801. After rotation, the second screw 703 is driven to rotate via the second gearbox 702. After the second screw 703 rotates, it drives the second nut 704, which is threaded to it, to move up and down. This, in turn, drives the movable base 601 to move up and down. When the movable base 601 moves up and down, it also drives the entire secondary storage frame 52 to move up and down relative to the main storage frame 53. Therefore, the threaded transmission mechanism composed of the second screw 703 and the second nut 704 realizes the lifting and lowering drive of the movable base 601, which in turn drives the entire secondary storage frame 52 to move up and down. The use of the threaded transmission mechanism makes the lifting and lowering process more stable, less prone to displacement, and more suitable for use in the vehicle environment.

[0035] When the vehicle-mounted liftable and retractable table is in the retracted state, the first screw 233 is close to the second screw 703, and the first screw 233 and the second screw 703 are located in the middle of the main storage frame 53. The first screw 233 is located to one side of the second screw 703, the first motor 231 is located to the left of the first screw 233 and extends away from the second screw 703, and the second motor 701 is located to the right of the second screw 703 and extends away from the first screw 233. That is, the first motor 231 and the first screw 233 form an inverted "L", and the second motor 701 and the second screw 703 form a forward "L". This arrangement allows the first actuator 523 and the second actuator 533 to be stored simultaneously in the small space of the main storage frame 53. When the vehicle-mounted liftable and retractable table is in the retracted state, the first actuator 523 and the second actuator 533 are roughly symmetrically distributed. This greatly saves the space required by the first actuator 523 and the second actuator 533. To achieve better storage, the second nut 704 is mounted on the movable base 601 via the nut seat 705. To ensure that the first actuator 523 and the second actuator 533 are symmetrically or approximately symmetrically distributed, the upper surface of the nut seat 705 is higher than the movable base 601. However, this means that the lifting plate 522 will hit the top of the nut seat 705 when it descends. Therefore, a positioning hole 100 is provided on the lifting plate 522 so that the top of the second screw 703 and the nut seat 705 can extend into the positioning hole 100, thereby allowing the lifting plate 522 to descend a greater distance, which also extends the relative movement stroke of the first screw 233 and the first nut 234. At the same time, it is beneficial for the first actuator 523 and the second actuator 533 to be symmetrically or approximately symmetrically distributed to save space. With the above settings, the vehicle-mounted liftable and retractable table provided in this application takes into account the need for the main storage frame 53 and the secondary storage frame 52 to be folded together to the maximum extent, effectively avoiding the storage drive structure from occupying too much space. After storage is completed, the secondary storage frame 52 can also be completely hidden inside the main storage frame 53, which occupies little space and is practical and beautiful.

[0036] To further improve the reliability and stability of the lifting plate 522 and the movable base 601 during the lifting process, the lifting plate 522 is further provided with two first slide rails 211 at both ends, or the movable base 601 is provided with two second slide rails 311 at both ends, or the lifting plate 522 is provided with two first slide rails 211 at both ends and the movable base 601 is provided with two second slide rails 311 at both ends. Specifically, each end of the lifting plate 522 is provided with two first slide rails 211, and a total of four first slide rails 211 are provided at both ends of the lifting plate 522. Each end of the movable base 601 is provided with two second slide rails 311, and a total of four second slide rails 311 are provided at both ends of the movable base 601. The use of four first slide rails 211 or four second slide rails 311 can greatly improve the reliability and stability during the lifting process.

[0037] The vehicle-mounted liftable and retractable table provided in this embodiment also includes a horizontal actuator 54 and at least one mounting rail. The main storage frame 53 is slidably engaged with at least one mounting rail. The nut on the power output shaft of the horizontal actuator 54 is connected to the main storage frame 53. When the horizontal actuator 54 is working, the main storage frame 53 can slide along at least one mounting rail, thereby realizing the overall hiding and sliding out of the vehicle-mounted liftable and retractable table. The horizontal actuator 54 also uses a motor, gearbox, and threaded transmission mechanism to achieve reciprocating motion.

[0038] Example 2

[0039] like Figure 6 As shown, this embodiment provides a vehicle-mounted lifting and retractable table, including a tabletop 1, a pivot 2, a limiting block 3, a connecting arm 4, and a drive motor. At least one side of the tabletop 1 overlaps the pivot 2. The limiting block 3 is used to restrict the tabletop 1 from swaying. The limiting block 3 is connected to the tabletop 1 and has at least one hinge point 31. One end of the connecting arm 4 is hinged to the limiting block 3, and the other end of the connecting arm 4 is connected to the drive motor. The drive motor drives the connecting arm 4 to move up and down. The connecting arm 4 drives the tabletop 1 to move in a plane around the pivot 2 through the limiting block 3. When the drive motor drives the connecting arm 4 to the top, the limiting block 3 moves to the limiting position, and the tabletop 1 is limited. The difference between Embodiment 1 and Embodiment 2 is that:

[0040] The limiting block 3 has a limiting notch 32, which is adapted to the rotating shaft 2. When the limiting block 3 moves to the limiting position, the upper surface of the limiting notch 32 is close to or abuts the bottom of the rotating shaft 2. Due to the obstruction of the rotating shaft 2, the movement of the limiting block 3 relative to the height direction of the vehicle-mounted lifting and concealing table is constrained. The upper surface of the limiting block 3 abuts the lower surface of the U-shaped frame 11 of the table 1, further ensuring that the limiting block 3 can no longer rotate, and the table 1 can no longer sway relative to the above-mentioned height direction.

[0041] Example 3

[0042] like Figure 7 As shown, this embodiment provides a vehicle-mounted lifting and retractable table, including a tabletop 1, a pivot 2, a limiting block 3, a connecting arm 4, and a drive motor. At least one side of the tabletop 1 overlaps the pivot 2. The limiting block 3 is used to restrict the tabletop 1 from swaying. The limiting block 3 is connected to the tabletop 1 and has at least one hinge point 31. One end of the connecting arm 4 is hinged to the limiting block 3, and the other end of the connecting arm 4 is connected to the drive motor. The drive motor drives the connecting arm 4 to move up and down. The connecting arm 4 drives the tabletop 1 to move in a plane around the pivot 2 through the limiting block 3. When the drive motor drives the connecting arm 4 to the top, the limiting block 3 moves to the limiting position, and the tabletop 1 is limited. The difference between Embodiment 3 and Embodiments 1 and 2 is that:

[0043] The fixed beam 111 is provided with a limiting groove 112, and the limiting block 3 has a limiting rod 33 that is adapted to the limiting groove 112. When the limiting block 3 moves to the limiting position, the limiting rod 33 is inserted into the limiting groove 112 to achieve the limiting. Similarly, when the limiting rod 33 extends into the limiting groove 112, the movement of the limiting block 3 is constrained.

[0044] Example 4

[0045] like Figure 8 As shown, this embodiment provides a vehicle-mounted lifting and retractable table, including a tabletop 1, a pivot 2, a limiting block 3, a connecting arm 4, and a drive motor. At least one side of the tabletop 1 overlaps the pivot 2. The limiting block 3 is used to restrict the tabletop 1 from swaying. The limiting block 3 is connected to the tabletop 1 and has at least one hinge point 31. One end of the connecting arm 4 is hinged to the limiting block 3, and the other end of the connecting arm 4 is connected to the drive motor. The drive motor drives the connecting arm 4 to move up and down. The connecting arm 4 drives the tabletop 1 to move in a plane around the pivot 2 through the limiting block 3. When the drive motor drives the connecting arm 4 to the top, the limiting block 3 moves to the limiting position, and the tabletop 1 is limited. The difference between Embodiment 4 and Embodiments 1, 2, and 3 is that:

[0046] A first magnetic element 113 is provided on the fixed beam 111, and a second magnetic element 34 adapted to the first magnetic element 113 is provided on the limiting block 3. When the limiting block 3 moves to the limiting position, the first magnetic element 113 and the second magnetic element 34 are magnetically attracted to achieve the limiting. When the magnetic elements attract each other, the movement of the limiting block 3 is constrained.

[0047] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A vehicle-mounted, liftable, and retractable table, characterized in that, include: Tabletop (1) and drive unit; The drive unit includes a secondary storage frame (52) and a main storage frame (53); The tabletop (1) is connected to the power output end of the drive motor and can move in a plane relative to the secondary storage frame (52); The secondary storage frame (52) is slidably engaged with the main storage frame (53); The secondary storage box (52) can be stored inside the main storage box (53).

2. The vehicle-mounted liftable and retractable table according to claim 1, characterized in that: The secondary storage frame (52) includes a movable frame (521), a lifting plate (522), and a first driver (523); The lifting plate (522) is slidably engaged with at least one first slide rail (211) on the movable frame (521); The power output end of the first driver (523) is connected to the lifting plate (522); The lifting plate (522) is connected to the table (1).

3. The vehicle-mounted liftable and retractable table according to claim 2, characterized in that: The first driver (523) includes a first motor (231), a first gearbox (232), a first screw (233), and a first nut (234); The power output end of the first motor (231) is connected to the input end of the first gearbox (232), the output end of the first gearbox (232) is connected to the first screw (233), and the first screw (233) is threadedly engaged with the first nut (234). The first nut (234) is fixed on the lifting plate (522).

4. The vehicle-mounted liftable and retractable table according to claim 2, characterized in that: The movable frame (521) includes a movable base (601), two movable side plates (602) and a movable top plate (603), wherein the movable base (601), the two movable side plates (602) and the movable top plate (603) are connected end to end to form a rectangular frame. The inner side of the movable side plate (602) is fixed with a first slide rail (211), and the lifting plate (522) slides in cooperation with the first slide rail (211).

5. The vehicle-mounted liftable and retractable table according to claim 3, characterized in that: The main storage frame (53) includes a fixing frame (531) and a second drive (533). The movable base (601) of the movable frame (521) is slidably engaged with the fixed frame (531), and the second driver (533) drives the movable base (601) to slide along the second slide rail (311) on the inner side of the fixed frame (531).

6. The vehicle-mounted liftable and retractable table according to claim 5, characterized in that: The second driver (533) includes a second motor (701), a second gearbox (702), a second screw (703), and a second nut (704); The power output end of the second motor (701) is connected to the input end of the second gearbox (702), the output end of the second gearbox (702) is connected to the second screw (703), the second screw (703) is threadedly engaged with the second nut (704), the second nut (704) is fixed on the movable base (601) by a nut seat (705), and after the second motor (701) rotates, it drives the second screw (703) to rotate through the second gearbox (702).

7. The vehicle-mounted liftable and retractable table according to claim 6, characterized in that: The fixing frame (531) includes a fixing base (801), two fixing side plates (802) and two fixing guardrails (803); The fixed base (801) and the two fixed side plates (802) are connected end to end to form a U-shaped frame that can accommodate the secondary storage frame (52). The two fixed railings (803) are connected to the ends of the two fixed side plates (802) to form a rectangular opening that allows the secondary storage frame (52) to extend and retract. A part of the secondary storage frame (52) extends into the U-shaped frame from the rectangular opening.

8. The vehicle-mounted liftable and retractable table according to claim 6, characterized in that: When the vehicle-mounted liftable and retractable table is in the retracted state, the first screw (233) is close to the second screw (703). The first screw (233) and the second screw (703) are located in the middle of the main storage frame (53), and the first screw (233) is located on one side of the second screw (703). The first motor (231) is located on the left side of the first screw (233) and extends away from the second screw (703). The second motor (701) is located on the right side of the second screw (703) and extends away from the first screw (233).

9. The vehicle-mounted liftable and retractable table according to claim 6, characterized in that: The upper plane of the nut seat (705) is higher than the movable base (601); The lifting plate (522) is provided with a positioning hole (100), and the top of the second screw (703) and the nut seat (705) can extend into the positioning hole (100).

10. The vehicle-mounted liftable and retractable table according to claim 1, characterized in that: It also includes a circumferential shaft (2), a limiting block (3), and a connecting arm (4); The rotating shaft (2) is fixed on the drive motor. At least one side of the table (1) is attached to the rotating shaft (2). The limiting block (3) is connected to the table (1). The limiting block (3) is provided with at least one hinge point (31). One end of the connecting arm (4) is hinged to the hinge point (31). The other end of the connecting arm (4) is connected to the lifting plate (522) of the drive motor.

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