A desk tabletop extension support plate with telescopic adjustment

Abstract

The utility model discloses a desk desktop extension support plate of telescopic regulation, including the desk board, and the both ends of the bottom of desk board are fixedly connected with the support leg, when the first inclined plane gear is rotated with the positive and negative rotation motor, two groups of second inclined plane gear also can rotate with the threaded rod on the axle core, at this moment, the threaded bushing can move to and fro on the outer wall of the rotating threaded rod, and the bottom surface of hollow board also can slide closely the bottom surface of square cavity inner wall, when two groups of hollow board make opposite direction movement simultaneously, can let two groups of extension board extend out square cavity simultaneously, when two groups of extension board all extend out from the both ends of square cavity, open the pneumatic cylinder, and the U type support frame moves upward with the pneumatic cylinder, and the extension board of two groups of hollow board opposite sides also can move upward together, when the U type support frame stops moving, the top surface of hollow board is just close to the top surface of square cavity inner wall, and the top surface of extension board and the top surface of desk board also are on the same horizontal plane, at this moment, can use to extension board.

Description

Technical Field

[0001] This utility model relates to the field of desk technology, and in particular to a retractable and adjustable desk desktop extension support plate. Background Technology

[0002] A desk is a common piece of furniture in homes, primarily used for studying, working, or placing items. It typically consists of a desktop, legs, and other accessories, and is made from various materials such as wood, metal, and glass. Desks come in a variety of designs; some are simple and practical, while others are decorative, enhancing the overall aesthetics of the home environment. When choosing a desk, you can select one based on your personal needs, preferences, and the size of your space.

[0003] The following problems exist: In daily life, the size of a desk is fixed, so the number of books and items that can be placed is very limited. Due to the limited space on the desk, if other items need to be temporarily placed, it is often found that there is not enough space on the desk to accommodate more things. In this case, the user has to find another place to place these items, which affects the tidiness of the desk and may even affect our learning and work efficiency. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A retractable and adjustable desk desktop extension support plate includes a tabletop, with support legs fixedly connected to both ends of the bottom of the tabletop. A square cavity is opened in the tabletop, penetrating through the outer walls on both sides. Hollow plates capable of sliding laterally and moving up and down are installed at both ends of the inner wall of the square cavity. Extension plates are fixedly connected to the opposite sides of the two sets of hollow plates.

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

[0008] A frame runs through the center of the bottom of the tabletop, and U-shaped support plates are fixedly connected to the bottom ends of the frame.

[0009] As a further description of the above technical solution:

[0010] The bottom center of the U-shaped support plate has a through hole, and a cylinder is fixedly connected to the inner wall of the hole. The movable end of the cylinder is fixedly connected to the U-shaped support frame. The bottom of the hollow plate has a sliding groove, and the inner wall of the sliding groove is slidably connected to the top of the outer wall of the U-shaped support frame.

[0011] As a further description of the above technical solution:

[0012] A sliding hole is provided at the center of the top of the tabletop, and an n-shaped support plate is slidably connected to the inner wall of the sliding hole. A hollow box is fixedly connected to the bottom of the n-shaped support plate.

[0013] As a further description of the above technical solution:

[0014] A reversible motor runs through the center of the top of the hollow box, and the movable end of the reversible motor is rotatably connected to a first helical gear.

[0015] As a further description of the above technical solution:

[0016] The hollow box has a circular hole at the center of the outer wall on both sides, and the inner wall of the circular hole is rotatably connected to a shaft. The opposing surfaces of the two sets of shafts are fixedly connected to a second helical gear. The teeth at both ends of the outer wall of the first helical gear mesh with the tooth grooves of the outer wall of the second helical gear.

[0017] As a further description of the above technical solution:

[0018] Both sets of shafts have threaded rods fixedly connected to their opposite sides, and the outer walls of the threaded rods are threadedly connected to threaded sleeves. The outer walls of the threaded sleeves are fixedly connected to the inner walls of the hollow plate.

[0019] Compared to existing technologies, the advantages of this invention are as follows: When the reversible motor drives the first helical gear to rotate, the two sets of second helical gears also drive the threaded rod on the shaft core to rotate together. At this time, the threaded sleeve can move back and forth on the outer wall of the rotating threaded rod, and the bottom surface of the hollow plate will slide tightly against the bottom surface of the inner wall of the square cavity. When the two sets of hollow plates move in opposite directions at the same time, the two sets of extension plates can extend out of the square cavity at the same time. When both sets of extension plates extend from both ends of the square cavity, the cylinder is activated, and the cylinder moves the U-shaped support frame upward. At the same time, the extension plates on the opposite sides of the two sets of hollow plates will also move upward together. When the U-shaped support frame stops moving, the top surface of the hollow plate is exactly close to the top surface of the inner wall of the square cavity, and the top surface of the extension plate is on the same horizontal plane as the top surface of the table. At this time, the extension plate can be used, which not only improves the cleanliness of the desktop, but also improves the user's work efficiency. Attached Figure Description

[0020] Fig. 1 This is a front view of the present invention;

[0021] Fig. 2 This is a front sectional view of the present invention.

[0022] The correspondence between the labels and component names in the attached figures is as follows:

[0023] 1. Tabletop; 2. Support leg; 3. Square cavity; 4. Frame; 5. U-shaped support plate; 6. Cylinder; 7. U-shaped support frame; 8. N-shaped support plate; 9. Hollow box; 10. Forward and reverse motor; 11. First inclined gear; 12. Shaft core; 13. Second inclined gear; 14. Threaded rod; 15. Threaded sleeve; 16. Hollow plate; 17. Slide groove; 18. Extension plate; 19. Sliding hole. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0027] Reference Figs. 1-2 This utility model provides an embodiment of a retractable and adjustable desk desktop extension support plate, including a desk board 1, with support legs 2 fixedly connected to both ends of the bottom of the desk board 1. A square cavity 3 is formed in the desk board 1, penetrating through the outer walls on both sides. A frame 4 is formed through the center of the bottom of the desk board 1, and the internal space of the frame 4 is interconnected with the internal space of the square cavity 3. A U-shaped support plate 5 is fixedly connected to both ends of the bottom of the frame 4. A circular hole is formed through the bottom of the U-shaped support plate 5, and a cylinder 6 is fixedly connected to the inner wall of the circular hole. The movable end of the cylinder 6 is vertically upward, and a U-shaped support frame 7 is fixedly connected to the movable end of the cylinder 6. The cylinder 6 can drive the U-shaped support frame 7 to move up and down.

[0028] A sliding hole 19 is provided at the center of the top of the tabletop 1. An n-shaped support plate 8 is slidably connected to the inner wall of the sliding hole 19. A hollow box 9 is fixedly connected to the bottom of the n-shaped support plate 8. A forward and reverse motor 10 passes through the center of the top of the hollow box 9. The movable end of the forward and reverse motor 10 extends vertically downward into the interior of the hollow box 9. A first inclined gear 11 is rotatably connected to the movable end of the forward and reverse motor 10. Circular holes are provided at the center of the outer walls on both sides of the hollow box 9, and shaft cores 12 are rotatably connected to the inner walls of the circular holes. A second inclined gear 13 is fixedly connected to the opposing surfaces of the two sets of shaft cores 12. The second inclined gears 13 are all located inside the hollow box 9. The two ends of the outer walls of the first inclined gear 11... All gear teeth mesh with the tooth grooves on the outer wall of the second helical gear 13. Threaded rods 14 are fixedly connected to the opposite sides of both sets of shaft cores 12. Threaded sleeves 15 are threadedly connected to the outer walls of the threaded rods 14. Hollow plates 16 are fixedly connected to the outer walls of the threaded sleeves 15. When the forward and reverse motor 10 drives the first helical gear 11 to rotate, the two sets of second helical gears 13 will also drive the threaded rods 14 on the shaft cores 12 to rotate together. At this time, the threaded sleeves 15 can move back and forth on the outer wall of the rotating threaded rods 14. At the same time, the bottom surface of the hollow plate 16 will slide tightly against the bottom surface of the inner wall of the square cavity 3. It is worth noting that the two sets of hollow plates 16 can only move in opposite directions or in the opposite direction at the same time.

[0029] The bottom of each hollow plate 16 is provided with a sliding groove 17. The inner wall of the sliding groove 17 is slidably connected to the top of the outer wall of the U-shaped support frame 7. The opposite sides of the two sets of hollow plates 16 are fixedly connected with extension plates 18. When the two sets of hollow plates 16 move in opposite directions at the same time, the two sets of extension plates 18 can extend out of the square cavity 3 at the same time. By setting the connection structure between the U-shaped support frame 7 and the sliding groove 17, the sliding range of the two sets of hollow plates 16 can be limited. When the two sets of extension plates 18 extend out from both ends of the square cavity 3, the cylinder 6 is activated. The cylinder 6 moves the U-shaped support frame 7 upward. At the same time, the extension plates 18 on the opposite sides of the two sets of hollow plates 16 also move upward together. When the U-shaped support frame 7 stops moving, the top surface of the hollow plate 16 is exactly close to the top surface of the inner wall of the square cavity 3. At the same time, the top surface of the extension plate 18 is on the same horizontal plane as the top surface of the table 1.

[0030] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A retractable and adjustable desk desktop extension support board, comprising a tabletop (1), characterized in that: The bottom ends of the table (1) are fixedly connected to support legs (2). The table (1) has a square cavity (3) that runs through the outer walls on both sides. The inner walls of the square cavity (3) are equipped with hollow plates (16) that can slide horizontally and move vertically. The opposite sides of the two sets of hollow plates (16) are fixedly connected to extension plates (18).

2. The retractable and adjustable desk desktop extension support plate according to claim 1, characterized in that: A frame (4) runs through the center of the bottom of the tabletop (1), and U-shaped support plates (5) are fixedly connected to the bottom ends of the frame (4).

3. The retractable and adjustable desk desktop extension support plate according to claim 2, characterized in that: The bottom center of the U-shaped support plate (5) has a through hole, and a cylinder (6) is fixedly connected to the inner wall of the hole. The movable end of the cylinder (6) is fixedly connected to a U-shaped support frame (7). The bottom of the hollow plate (16) is provided with a sliding groove (17), and the inner wall of the sliding groove (17) is slidably connected to the top of the outer wall of the U-shaped support frame (7).

4. The retractable and adjustable desk desktop extension support plate according to claim 1, characterized in that: A sliding hole (19) is provided at the center of the top of the tabletop (1). An n-shaped support plate (8) is slidably connected to the inner wall of the sliding hole (19). A hollow box (9) is fixedly connected to the bottom of the n-shaped support plate (8).

5. The retractable and adjustable desk desktop extension support plate according to claim 4, characterized in that: A reversible motor (10) is inserted through the top center of the hollow box (9), and the movable end of the reversible motor (10) is rotatably connected to a first helical gear (11).

6. The retractable and adjustable desk desktop extension support plate according to claim 5, characterized in that: The hollow box (9) has a circular hole at the center of the outer wall on both sides, and the inner wall of the circular hole is rotatably connected to a shaft core (12). The opposing surfaces of the two sets of shaft cores (12) are fixedly connected to a second helical gear (13). The teeth at both ends of the outer wall of the first helical gear (11) mesh with the tooth grooves on the outer wall of the second helical gear (13).

7. The retractable and adjustable desk desktop extension support plate according to claim 6, characterized in that: Both sets of shaft cores (12) are fixedly connected to threaded rods (14) on opposite sides. The outer walls of the threaded rods (14) are threadedly connected to threaded sleeves (15). The outer walls of the threaded sleeves (15) are fixedly connected to the inner walls of the hollow plate (16).

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