Lifting device

Abstract

The utility model belongs to the field of furniture equipment, and particularly relates to a lifting device which comprises top frames, pushing assemblies, a driving assembly, a supporting component, a table board and a folding assembly, the driving assembly is arranged between the two top frames arranged in parallel in the length direction of the top frames and rotatably connected with the two pushing assemblies, and the two ends of each pushing assembly are connected with the corresponding top frame in a sliding mode. The two ends of the top frame are rotatably connected with the top ends of the folding assemblies, the two ends of the pushing assemblies are rotatably connected with one ends of the supporting parts, the other ends of the supporting parts are rotatably connected with the top ends of the folding assemblies, and the bottom ends of the folding assemblies are rotatably connected with the table board. The driving assembly drives the pushing assembly to slide on the top frame, meanwhile, unfolding / folding of the folding assembly is achieved through the supporting component, and then lifting of the table plate is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of furniture equipment, and particularly relates to a lifting device. Background Art

[0002] A table is a piece of furniture fixed by a smooth flat plate, legs and other supports. Users can study, work, dine, place items, etc. on the table. Currently, the tables on the market have the following problems: they occupy a large amount of the usable area of the house and have a single function; their function is limited to dining, and they affect the usable area of the house during idle time, making the interior look cluttered, which not only affects the aesthetics but also has a low utilization rate, resulting in waste of space. Traditional tabletops have a low cost performance, cannot effectively utilize space, and there is also a possibility of causing accidental injuries. Therefore, more reasonable technical solutions need to be proposed to solve the technical problems existing in the prior art. Content of the Utility Model

[0003] The purpose of the utility model is to provide a lifting device to solve the problems existing in the prior art. To achieve the above-mentioned invention purpose, the technical solution adopted by the utility model is as follows:

[0004] A lifting device includes a top frame, a pushing component, a driving component, a supporting component, a table board and a folding component. A driving component is arranged between two parallel top frames along their length directions. The driving component is rotatably connected to the two pushing components. The two ends of the pushing component are respectively slidably connected to one of the top frames. The two ends of the top frame are rotatably connected to the top ends of the folding components. The two ends of the pushing component are rotatably connected to one ends of the supporting components. The other ends of the supporting components are rotatably connected to the top ends of the folding components. The bottom ends of the plurality of folding components are rotatably connected to the table board; the driving component drives the pushing component to slide on the top frame, and at the same time, the supporting component is used to realize the unfolding / folding of the folding component, so as to realize the lifting of the table board.

[0005] Further, one ends of two connecting frames are respectively fixedly connected to the central positions of the sides of the two top frames close to each other. The lifting device further includes two connecting frames II. The two ends of the connecting frame II are respectively fixedly connected to one end of the top frame. A fixed bearing is arranged at the bottom of one of the connecting frame II, and a driving motor is arranged at the bottom of the other connecting frame II. A screw rod is arranged at the output end of the driving motor. The screw rod is arranged parallel to the top frame. The tail end of the screw rod is rotatably connected to the fixed bearing.

[0006] Further, sliding grooves are symmetrically arranged on the top frame on both sides of the connecting frame I. The pushing component includes a sliding rod. Sliding blocks are arranged at both ends of the sliding rod. The sliding blocks are slidably connected to the sliding grooves.

[0007] Further, the screw rod is provided with a first thread portion and a second thread portion with opposite thread directions. The pushing assembly includes a sliding rod. At the centers of the bottoms of the two sliding rods, there are sliding nuts. One of the sliding nuts is threadedly connected to the first thread portion, and the other sliding nut is threadedly connected to the second thread portion.

[0008] Further, the pushing assembly includes a sliding rod, and the folding assembly includes an upper support rod. The bottoms of both ends of the top frame are respectively rotatably connected to the tops of one of the upper support rods. The middle parts of the sides of the two upper support rods on the top frame that are close to each other are rotatably connected to one end of the support member. The other end of the support member is rotatably connected to the end of the sliding rod close to the upper support rod.

[0009] Further, the folding assembly further includes a lower support rod. The top of the lower support rod and the bottom of the upper support rod are hinged to each other through a hinge.

[0010] Further, it further includes two parallel bottom frames. The bottom frames are arranged in parallel with the top frame. The bottoms of the two ends of the bottom frames are rotatably connected to the bottoms of the lower support rods. A table board is fixedly arranged between the two bottom frames.

[0011] The utility model has the following beneficial effects: A folding assembly is provided. The two ends of the folding assembly are respectively connected to the top frame and the bottom frame. The required table board is arranged on the bottom frame. When the table board needs to be used, the folding assembly is driven by a motor to drive the table board to descend. When the table board does not need to be used, the folding assembly is driven by a motor to drive the table board to rise to achieve the purpose of saving space, and at the same time, it prevents bumps from causing damage to users. Description of the Drawings

[0012] Figure 1 is a perspective view of the device in the unfolded state;

[0013] Figure 2 is Figure 1 the enlarged view at A in

[0014] Figure 3 is Figure 1 the enlarged view at B in

[0015] Figure 4 is Figure 1 the enlarged view at C in

[0016] Figure 5 is a perspective view of the device in the folded state;

[0017] Reference numerals of each component in the figure:

[0018] Top frame 1, connecting frame two 2, pushing component 3, sliding rod 301, slider 302, sliding nut 303, chute 4, connecting frame one 5, driving motor 6, screw rod 7, thread part one 701, thread part two 702, supporting component 8, upper supporting rod 9, lower supporting rod 10, bottom frame 11, fixed bearing 12, hinge 13, table board 14. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. If not specifically specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0020] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0021] As Figures 1-5 shown, it includes a top frame 1, a pushing component 3, a driving component, a supporting component 8, a table board 14 and a folding component. A driving component is provided between two parallel top frames 1 along their length directions. The driving component rotatably connects the two pushing components 3. The two ends of the pushing component 3 are respectively slidably connected to one of the top frames 1. The two ends of the top frame 1 are rotatably connected to the top ends of the folding components. The two ends of the pushing component 3 are rotatably connected to one ends of the supporting components 8. The other ends of the supporting components 8 are rotatably connected to the top ends of the folding components. The bottom ends of multiple folding components are rotatably connected to the table board 14. The driving component drives the pushing component 3 to slide on the top frame 1, and at the same time, the folding components are unfolded / folded through the supporting components 8, thereby realizing the lifting of the table board 14.

[0022] As Figure 1 、 2As shown in the figure, one end of each of the two connecting frames 5 is fixedly connected to the central position on the side where the two top frames 1 are close to each other. The two top frames 1 are parallel to each other, and the connecting frame 5 is perpendicular to both of them. There are also two connecting frames 2. Both ends of the connecting frame 2 are fixedly connected to one end of the top frame 1, and the connecting frame 2 is perpendicular to the top frame 1. A fixed bearing 12 is provided at the bottom of one of the connecting frames 2, and the fixed bearing 12 is stationary. A driving motor 6 is provided at the bottom of the other connecting frame 2. A screw rod 7 is provided at the output end of the driving motor 6. The screw rod 7 is arranged parallel to the top frame 1. The tail end of the screw rod 7 is rotatably connected to the fixed bearing 12. The fixed bearing 12, the screw rod 7 and the motor 6 are located on the same horizontal line. Threaded portions 701 and 702 with opposite thread directions are provided on the screw rod 7. The pushing assembly 3 includes a slide bar 301. A sliding nut 303 is provided at the center of the bottom of the two slide bars 301. One of the sliding nuts 303 is threadedly connected to the threaded portion 701, and the other sliding nut 303 is threadedly connected to the threaded portion 702. When the screw rod 7 rotates, since the directions of the threaded portions 701 and 702 are opposite, the two slide bars 301 move towards each other, that is, move towards the middle at the same time, or move towards both sides at the same time.

[0023] As Figure 2 shown in the figure, chutes 4 are symmetrically provided on both sides of the connecting frame 5 on the top frame 1. The pushing assembly 3 includes a slide bar 301. Sliders 302 are provided at both ends of the slide bar 301. The sliders 302 are slidably connected to the chutes 4. Protective blocks are provided at both ends of the chutes 4 to prevent the sliders 302 from disengaging from the chutes 4. When the sliders 302 are at the rightmost end, the device is in a folded state. When the sliders 302 are at the leftmost end, the device is in an unfolded state.

[0024] Furthermore, the pushing assembly 3 includes a slide bar 301. The folding assembly includes an upper support rod 9. The bottom of both ends of the top frame 1 is rotatably connected to the top of one of the upper support rods 9. The middle parts of the two upper support rods 9 on the top frame 1 are rotatably connected to one end of the support member 8. The other end of the support member 8 is rotatably connected to one end of the slide bar 301 close to the upper support rod 9. The folding assembly also includes a lower support rod 10. The top of the lower support rod 10 and the bottom of the upper support rod 9 are hinged to each other through a hinge 13. There are also two parallel bottom frames 11. The bottom frames 11 are arranged parallel to the top frame 1. The bottom of both ends of the bottom frames 11 is rotatably connected to the bottom of the lower support rod 10. A table board 14 is fixedly provided between the two bottom frames 11. The hinge 13 is arranged on the outside (as Figure 3As shown, the upper support rod 9 and the lower support rod 10 can only be folded inward to achieve the purpose of saving space. At the same time, the bottom of the upper support rod 9 and the top of the lower support rod 10 are wedge-shaped, that is, when the upper support rod 9 and the lower support rod 10 are in the unfolded state, they are not perpendicular (their unfolded state is as shown in Figure 3 ). This setting makes the device more convenient to respond during folding (when this setting is required for folding, the initial pulling force required for the support member 8 will be smaller).

[0025] Working principle: In the folded state (as shown in Figure 5 ), the driving motor 6 drives the screw rod 7 to rotate forward. The screw rod 7 pushes the two slide rods 301 away from each other. The support member 8 rotatably connected to the slide rods 301 pushes the bottoms of the two upper support rods 9 on the same top frame 1 away from each other until the upper support rod 9 and the lower support rod 10 tend to be in a vertical state. During this process, the tabletop 14 falls from the top to the bottom, and the whole device changes from the folded state ( Figure 5 ) - - - to the unfolded state ( Figure 1 ). In the unfolded state (as shown in Figure 1 ), the driving motor 6 drives the screw rod 7 to rotate in the reverse direction. The screw rod 7 pushes the two slide rods 301 closer to each other. The support member 8 rotatably connected to the slide rods 301 pulls the bottoms of the two upper support rods 9 on the same top frame 1 closer to each other until the upper support rod 9 and the lower support rod 10 tend to be in a horizontal state. During this process, the tabletop 14 rises from the bottom to the top, and the whole device changes from the unfolded state ( Figure 1 ) - - - to the folded state ( Figure 5 ).

[0026] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, variations, modifications, and substitutions made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A lifting device, characterized in that: It comprises a top frame (1), a pushing assembly (3), a driving assembly, a supporting component (8), a table top (14) and a folding assembly. A driving assembly is provided between two parallel top frames (1) along their length direction. The driving assembly can rotatably connect the two pushing assemblies (3). Both ends of the pushing assembly (3) are respectively slidably connected to one top frame (1). Both ends of the top frame (1) can be rotatably connected to the top of the folding assembly. Both ends of the pushing assembly (3) can be rotatably connected to one end of the supporting component (8). The other end of the supporting component (8) can be rotatably connected to the top of the folding assembly. The bottom ends of multiple folding assemblies can be rotatably connected to the table top (14). The driving assembly drives the pushing assembly (3) to slide on the top frame (1). At the same time, the folding assembly is unfolded / folded through the supporting component (8), thereby realizing the lifting and lowering of the table top (14).

2. A lifting device according to claim 1, characterized in that: The center positions of the sides of the two top frames (1) close to each other are respectively fixedly connected to one end of the connecting frame one (5), and also include two connecting frames two (2), the two ends of the connecting frame two (2) are respectively fixedly connected to one end of the top frame (1), one of the connecting frames two (2) is provided with a fixed bearing (12) at the bottom, and the other connecting frame two (2) is provided with a driving motor (6) at the bottom, and the output end of the driving motor (6) is provided with a screw rod (7), the screw rod (7) is arranged parallel to the top frame (1), and the tail end of the screw rod (7) is rotatably connected to the fixed bearing (12).

3. A lifting device according to claim 2, characterized in that: The top frame (1) is symmetrically provided with sliding grooves (4) on both sides of the connecting frame (5), and the pushing component (3) includes a sliding rod (301), and sliders (302) are provided at both ends of the sliding rod (301), and the sliders (302) are slidably connected to the sliding grooves (4).

4. A lifting device according to claim 2, characterized in that: The screw rod (7) is provided with a threaded portion 1 (701) and a threaded portion 2 (702) having opposite thread directions. The pushing assembly (3) comprises a sliding rod (301). A sliding nut (303) is provided at the center of the bottom of the two sliding rods (301). One of the sliding nuts (303) is threadedly connected to the threaded portion 1 (701), and the other sliding nut (303) is threadedly connected to the threaded portion 2 (702).

5. A lifting device according to claim 2, characterized in that: The pushing assembly (3) includes a sliding rod (301), and the folding assembly includes an upper support rod (9). The bottoms of the two ends of the top frame (1) are rotatably connected to the top of the upper support rod (9), and the middle part of the side where the two upper support rods (9) on the top frame (1) are close to each other can be rotatably connected to one end of the support component (8), and the other end of the support component (8) can be rotatably connected to one end of the sliding rod (301) close to the upper support rod (9).

6. A lifting device according to claim 5, characterized in that: The folding assembly also includes a lower support rod (10), the top of the lower support rod (10) and the bottom of the upper support rod (9) are hinged to each other through a hinge (13).

7. A lifting device according to claim 6, characterized in that: It also includes two parallel bottom frames (11), wherein the bottom frames (11) are arranged parallel to the top frame (1), and both ends of the bottom frames (11) are rotatably connected to the bottom of the lower support rod (10), and the table top (14) is fixedly arranged between the two bottom frames (11).

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