Stretchable table with lift

Abstract

The utility model relates to stretchable table technical field discloses with the lifting can stretchable table, including the backing plate, the backing plate top is provided with pneumatic assembly, the backing plate top fixedly connected with the support column, the support column slidingly connected with the sliding column, the sliding column top fixedly connected with the support plate, the support plate top fixedly connected with the support frame, the support frame top fixedly connected with the desktop no.

Description

Technical Field

[0001] This utility model relates to the field of stretchable table technology, and in particular to a stretchable table with lifting function. Background Technology

[0002] With the diversification of modern lifestyles and work styles, people's demand for furniture functionality is increasing, especially for table designs that combine spatial adaptability and flexibility. As a type of multifunctional furniture, height-adjustable extendable tables can adapt to different usage scenarios (such as office, study, or dining) through height adjustment, while meeting space expansion needs by unfolding or folding the tabletop. They have broad application prospects in small residences, office environments, and multifunctional venues. Such tables usually need to balance structural stability and ease of operation, ensuring reliable load-bearing capacity after height adjustment and precise stretching and splicing. Therefore, how to achieve the dual functions of height adjustment and tabletop splicing through mechanical structure optimization, and solve problems such as insufficient stability and splicing gaps in traditional designs, has become an important research direction in the current furniture design field.

[0003] Most existing height-adjustable tables use pneumatic rods, electric push rods, or spiral columns for height adjustment. Pneumatic rods drive the lifting by compressing and releasing internal gas, which is easy to operate. Electric push rods rely on a motor to drive a screw, which can precisely control the lifting height. Spiral columns are manually adjusted by rotating a screw structure, which is cheaper but less efficient.

[0004] Existing height-adjustable desks have significant drawbacks in terms of stability after height adjustment. Traditional gas springs or spiral columns rely solely on friction or threaded self-locking for fixation after adjustment. When the desktop is subjected to lateral external forces (such as leaning or collision), insufficient locking force can easily lead to height deviation, or even cause the desk to suddenly drop, posing a safety hazard. In addition, frequent adjustments accelerate component wear and further reduce structural reliability. This problem not only affects the user experience but also easily damages devices placed on the desktop (such as monitors or tableware). Therefore, a height-adjustable extendable desk is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a height-adjustable extendable table, which aims to improve the significant defects in the stability of existing height-adjustable tables after height adjustment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A height-adjustable extendable table includes a base plate, a pneumatic component on the top of the base plate, a support column fixedly connected to the top of the base plate, a sliding column slidably connected to the support column, a support plate fixedly connected to the top of the sliding column, a support frame fixedly connected to the top of the support plate, a second desktop fixedly connected to the top of the support frame, a first desktop slidably connected to one side inside the support frame, a third desktop slidably connected to the other side inside the support frame, and a limit component inside the support column.

[0008] The limiting component includes a positioning post, which is slidably connected inside the support post. One end of the positioning post is engaged with the inside of the sliding post. A hollow post is fixedly connected to the side wall of the support post. An unlocking component is provided inside the hollow post. Telescopic components are provided inside both desktop one and desktop three. A buckle component is provided inside desktop one.

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

[0010] The pneumatic assembly includes a cylinder, a controller, and a sliding sleeve column. The bottom of the cylinder is fixedly connected to the top of the pad, the bottom of the sliding sleeve column is fixedly connected to the cylinder output end, the controller is located at the bottom of the support frame, and the top of the sliding sleeve column is fixedly connected to the bottom of the support frame.

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

[0012] The unlocking component includes a sliding disk that is slidably connected to the inner wall of the hollow column, and a positioning post that is fixedly connected to the inner wall of the sliding disk and slidably connected inside the hollow column.

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

[0014] A reset disk is slidably connected inside the hollow column. The side wall of the sliding disk is rotatably connected to the side wall of the reset disk. A spring is sleeved on the outer wall of the positioning column. One end of the spring is fixedly connected to the side wall of the reset disk, and the other end of the spring is fixedly connected to the inner wall of the hollow column.

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

[0016] The telescopic component includes a first connecting column and a second connecting column. One end of the first connecting column is fixedly connected to one side wall of the desktop, and one end of the second connecting column is fixedly connected to the third side wall of the desktop. The second side wall of the desktop is provided with a trapezoidal groove, and both the first connecting column and the second connecting column are slidably connected to the inner wall of the trapezoidal groove.

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

[0018] The latching assembly includes a latching ball, which is slidably connected inside the second desktop. A second latching plate is fixedly connected to the third desktop sidewall, which is slidably connected inside the third desktop. The third desktop sidewall engages with the latching ball.

[0019] As a further description of the above technical solution:

[0020] A second spring is installed inside the desktop three. One end of the second spring is fixedly connected to the inner wall of the desktop three, and the other end of the second spring is fixedly connected to the side wall of the ball.

[0021] As a further description of the above technical solution:

[0022] A card plate is fixedly connected to the two side walls of the desktop, and the card plate is slidably connected inside the desktop.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the positioning column inside the support column engages with the sliding column, thereby driving the limiting component to fix the adjusted sliding column. Subsequently, the reset plate and spring inside the hollow column drive the positioning column to maintain the engagement state, thus enabling the height-adjustable table to be stably limited after height adjustment. This avoids the table body from shifting in height due to accidental force during use, solves the problem of insufficient stability after adjustment of traditional height-adjustable tables, and improves the safety and reliability during use.

[0025] 2. In this utility model, the locking ball inside the second tabletop engages with the side wall of the third tabletop, thereby driving the buckle assembly to fix the tabletop after it has been unfolded or folded. Subsequently, the spring second inside the third tabletop drives the locking ball to maintain the engagement state. At the same time, the first and second locking plates assist in positioning, so that each tabletop can be accurately spliced ​​when stretched or contracted, thereby avoiding gaps or misalignments at the splicing points of the tabletops. This solves the problem of unstable splicing after the tabletop has been unfolded and folded, and improves the overall integrity and convenience of the table. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the extendable table with lifting function proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the support column structure of the extendable table with lifting function proposed in this utility model.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the support frame structure for the extendable table with lifting function proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the desktop structure of the extendable table with lifting function proposed in this utility model.

[0031] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0032] Legend:

[0033] 1. Pad; 2. Cylinder; 3. Controller; 4. Sliding sleeve column; 5. Support column; 6. Desktop 1; 7. Desktop 2; 8. Desktop 3; 9. Support frame; 10. Sliding column; 11. Support plate; 12. Hollow column; 13. Positioning column; 14. Sliding disc; 15. Reset disc; 16. Spring 1; 17. Trapezoidal slide groove; 18. Connecting column 1; 19. Connecting column 2; 20. Clamping plate 1; 21. Clamping plate 2; 22. Spring 2; 23. Clamping ball. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 - Figure 5 This utility model provides an embodiment of a height-adjustable extendable table, including a base plate 1. A pneumatic assembly is installed on the top of the base plate 1 to provide lifting power, enabling the table to be smoothly adjusted in height. A support column 5 is fixedly connected to the top of the base plate 1, serving as the main support structure. The support column 5 has a guide groove inside to ensure stability during the lifting process. A sliding column 10 is slidably connected to the support column 5, allowing the sliding column 10 to move up and down within the support column 5 to achieve height adjustment. A support plate 11 is fixedly connected to the top of the sliding column 10, distributing pressure on the tabletop and enhancing the overall load-bearing capacity. The support plate 11 has a support frame 9 fixedly connected to its top. The support frame 9 provides the installation base for the tabletop and guides the tabletop's telescopic movement. The support frame 9 has a second desktop 7 fixedly connected to its top. The second desktop 7 serves as the fixed part and constitutes the main body of the desktop. The support frame 9 has a first desktop 6 slidably connected to one side inside. The first desktop 6 can be stretched outward to expand the usable area. The support frame 9 has a third desktop 8 slidably connected to the other side inside. The third desktop 8 and the first desktop 6 are symmetrically arranged to jointly realize the desktop's expansion function. The support column 5 has a limit component inside to lock the adjusted height and prevent accidental slippage.

[0036] The limiting component includes a positioning post 13, which is slidably connected inside the support post 5. One end of the positioning post 13 engages with the inside of the sliding post 10, fixing the position of the sliding post 10 through the engagement structure. A hollow post 12 is fixedly connected to the side wall of the support post 5. An unlocking component is provided inside the hollow post 12. The unlocking component is used to release the engagement state of the positioning post 13, making it easy to readjust the height. Both desktop 1 6 and desktop 3 8 are equipped with telescopic components. The telescopic components control the telescopic movement of the tabletops to ensure smooth unfolding and retraction. Desktop 1 6 is equipped with a latching component. The latching component is used to fix the position after the tabletop is unfolded or retracted, preventing loosening or misalignment.

[0037] Reference Figure 1 - Figure 5 The pneumatic assembly includes a cylinder 2, a controller 3, and a sliding sleeve column 4. The bottom of the cylinder 2 is fixedly connected to the top of the pad 1 to provide lifting power. The controller 3 is located at the bottom of the support frame 9 to control the extension and retraction of the cylinder 2. The bottom of the sliding sleeve column 4 is fixedly connected to the output end of the cylinder 2, and the top is fixedly connected to the bottom of the support frame 9 to transmit the power of the cylinder 2 to the support frame 9 to achieve the lifting function. The unlocking assembly includes a sliding plate 14, which is slidably connected to the inner wall of the hollow column 12 to drive the positioning column 13 to move. The positioning post 13 is fixedly connected to the inner wall of the sliding plate 14 and engages with the sliding post 10 to achieve height locking. A reset plate 15 is slidably connected inside the hollow post 12. The side wall of the sliding plate 14 is rotatably connected to the side wall of the reset plate 15, allowing automatic reset after unlocking. A spring 16 is sleeved on the outer wall of the positioning post 13. One end of the spring 16 is fixedly connected to the side wall of the reset plate 15, and the other end is fixedly connected to the inner wall of the hollow post 12, used to maintain the engaged state of the positioning post 13 and return it to its original position after unlocking. The telescopic assembly includes a connecting... Column 18 and connecting column 2 19 are used to guide the telescopic movement of the tabletop. One end of connecting column 18 is fixedly connected to the side wall of tabletop 6, and one end of connecting column 2 19 is fixedly connected to the side wall of tabletop 8. A trapezoidal groove 17 is provided on the side wall of tabletop 7, and both connecting column 18 and connecting column 2 19 are slidably connected to the inner wall of the trapezoidal groove 17 to ensure stable movement of the tabletop and prevent derailment. The latching assembly includes a locking ball 23, which is slidably connected inside tabletop 7 to engage and fix with tabletop 8. The side wall of tabletop 8 is fixed. A second locking plate 21 is connected and slides inside the third tabletop 8 to assist in the positioning of the tabletop. The side wall of the third tabletop 8 engages with the locking ball 23 to ensure a stable assembly after unfolding. A second spring 22 is installed inside the third tabletop 8. One end of the second spring 22 is fixedly connected to the inner wall of the third tabletop 8, and the other end is fixedly connected to the side wall of the locking ball 23 to keep the locking ball 23 in a locked state. A first locking plate 20 is fixedly connected to the side wall of the second tabletop 7 and slides inside the first tabletop 6 to assist in the positioning and fixation of the first tabletop 6.

[0038] Working principle: When this extendable table with height adjustment is in operation, the controller 3 activates the cylinder 2. The output end of the cylinder 2 drives the sliding sleeve column 4 to extend and retract. The sliding sleeve column 4 drives the support frame 9 to rise and fall. The support frame 9 drives the support plate 11 and the sliding column 10 to slide along the inner wall of the support column 5, thereby adjusting the height of the tabletop. After adjustment, the spring 16 inside the hollow column 12 pushes the reset plate 15. The reset plate 15 drives the sliding plate 14 to move. The sliding plate 14 drives the positioning column 13 to engage inside the sliding column 10, completing the height limit. To unlock, pull the sliding plate 14, which drives the positioning column 13 to disengage from the sliding column 10, thus extending the tabletop. When the desktop 1 6 and desktop 3 8 are pulled, desktop 1 6 causes connecting column 1 18 to slide along trapezoidal slide groove 17, and desktop 3 8 causes connecting column 2 19 to slide along trapezoidal slide groove 17. At the same time, the locking plate 1 20 on desktop 2 7 slides along the inside of desktop 1 6, and the locking plate 2 21 slides along the inside of desktop 3 8. After unfolding into place, spring 2 22 inside desktop 3 8 pushes locking ball 23 into the side wall of desktop 2 7 to complete the fixation. When merging, desktop 1 6 and desktop 3 8 are pushed in the opposite direction, and locking ball 23 is compressed and retracts, disengaging from the locked state, until desktop 1 6 and desktop 3 8 are retracted into the support frame 9. At this time, locking ball 23 locks in again, realizing the merging and fixation.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A retractable table with lifting function, including a base plate (1), characterized in that: The pad (1) is provided with a pneumatic component on the top. The pad (1) is fixedly connected with a support column (5). The support column (5) is slidably connected with a sliding column (10). The sliding column (10) is fixedly connected with a support plate (11). The support plate (11) is fixedly connected with a support frame (9). The support frame (9) is fixedly connected with a desktop (7) on the top. The support frame (9) is slidably connected with a desktop (6) on one side inside. The support frame (9) is slidably connected with a desktop (8) on the other side inside. The support column (5) is provided with a limit component inside. The limiting component includes a positioning post (13), which is slidably connected inside the support post (5). One end of the positioning post (13) is engaged with the inside of the sliding post (10). A hollow post (12) is fixedly connected to the side wall of the support post (5). An unlocking component is provided inside the hollow post (12). Telescopic components are provided inside both the first desktop (6) and the third desktop (8). A buckle component is provided inside the first desktop (6).

2. The extendable table with lifting function according to claim 1, characterized in that: The pneumatic assembly includes a cylinder (2), a controller (3), and a sliding sleeve column (4). The bottom of the cylinder (2) is fixedly connected to the top of the pad (1), and the bottom of the sliding sleeve column (4) is fixedly connected to the output end of the cylinder (2). The controller (3) is located at the bottom of the support frame (9), and the top of the sliding sleeve column (4) is fixedly connected to the bottom of the support frame (9).

3. The extendable table with lifting function according to claim 1, characterized in that: The unlocking component includes a sliding disk (14) which is slidably connected to the inner wall of the hollow column (12), and a positioning column (13) which is fixedly connected to the inner wall of the sliding disk (14) and slidably connected inside the hollow column (12).

4. The extendable table with lifting function according to claim 3, characterized in that: The hollow column (12) is slidably connected to a reset disk (15). The side wall of the sliding disk (14) is rotatably connected to the side wall of the reset disk (15). The outer wall of the positioning column (13) is fitted with a spring (16). One end of the spring (16) is fixedly connected to the side wall of the reset disk (15), and the other end of the spring (16) is fixedly connected to the inner wall of the hollow column (12).

5. The extendable table with lifting function according to claim 1, characterized in that: The telescopic assembly includes a first connecting post (18) and a second connecting post (19). One end of the first connecting post (18) is fixedly connected to the side wall of the first desktop (6), and one end of the second connecting post (19) is fixedly connected to the side wall of the third desktop (8). The side wall of the second desktop (7) is provided with a trapezoidal groove (17). The first connecting post (18) and the second connecting post (19) are both slidably connected to the inner wall of the trapezoidal groove (17).

6. The extendable table with lifting function according to claim 1, characterized in that: The buckle assembly includes a locking ball (23), which is slidably connected inside the second desktop (7). The third desktop (8) has a locking plate (21) fixedly connected to its side wall, which is slidably connected inside the third desktop (8). The side wall of the third desktop (8) engages with the locking ball (23).

7. The extendable table with lifting function according to claim 6, characterized in that: The desktop three (8) is provided with a spring two (22), one end of the spring two (22) is fixedly connected to the inner wall of the desktop three (8), and the other end of the spring two (22) is fixedly connected to the side wall of the ball (23).

8. The extendable table with lifting function according to claim 7, characterized in that: The side wall of the second desktop (7) is fixedly connected to a first card plate (20), and the first card plate (20) is slidably connected inside the first desktop (6).

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