A quickly adjustable stretch table structure

Abstract

The utility model relates to the field of stretching table, especially a stretching table structure of quick adjustment, including the horizontal setting stretching table body and the base frame of supporting on ground, the bottom periphery fixed connection of base frame has the support leg, the upper surface central region of base frame is provided with power transmission mechanism, the lower surface rigid fixed of stretching table body has the horizontal supporting plate, the bottom of horizontal supporting plate is provided with three groups of connecting rod lifting mechanisms, each connecting rod lifting mechanism includes the linkage connecting rod group and the linkage part of driving linkage connecting rod group work of interlinking in each group, and connecting rod lifting mechanism is connected with power transmission mechanism, and power transmission mechanism drives the linkage connecting rod group work in connecting rod lifting mechanism, the utility model discloses through the fusion power transmission mechanism and connecting rod lifting mechanism, realizes the height quick and accurate regulation, and connecting rod lifting mechanism is unfolded into triangular support, and the stability is strengthened, and power transmission mechanism has automatic and manual adjustment flexibility.

Description

Technical Field

[0001] This utility model relates to the field of stretch tables, and more particularly to a stretch table structure that can be quickly adjusted. Background Technology

[0002] Traditional pull-out tables typically use bolt adjustment mechanisms that work with pre-drilled positioning holes in the table legs. When adjusting, the bolts need to be loosened, the tabletop raised or lowered to the corresponding hole position, and then tightened again. This design is simple and supports fixed height settings.

[0003] However, this bolt-adjustment-based structure, while seemingly simple and intuitive in design and operation, has its shortcomings. First, bolt adjustment requires users to manually rotate the bolts for fine-tuning of the height. This process is not only tedious but also time-consuming. Especially in scenarios where the desktop height needs to be adjusted frequently, users have to repeatedly rotate the bolts, greatly reducing the ease of use and resulting in a poor user experience. In addition, bolt adjustment, as the only means of adjusting the height of the extended table, relies entirely on manual operation, thereby increasing the user's workload. Utility Model Content

[0004] To overcome the problems of tedious and time-consuming manual adjustment of height by rotating the bolts, which relies entirely on manual operation, increases labor intensity, and reduces ease of use.

[0005] The technical solution of this utility model is as follows: a quickly adjustable stretchable table structure, including a horizontally arranged stretchable table body and a base frame supported on the ground. Support legs are fixedly connected to the bottom periphery of the base frame. A power transmission mechanism is arranged in the central area of ​​the upper surface of the base frame. A horizontal support plate is rigidly fixed to the lower surface of the stretchable table body. Three sets of linkage lifting mechanisms are arranged at the bottom of the horizontal support plate. Each set of linkage lifting mechanisms includes a load-bearing linkage group that is linked together and a linkage part that drives the load-bearing linkage group to work. The linkage lifting mechanism is connected to the power transmission mechanism. The power transmission mechanism drives the load-bearing linkage group in the linkage lifting mechanism to work, forcing the load-bearing linkage group to produce synchronous planar unfolding or folding action, driving the stretchable table body to continuously rise and fall in the vertical direction. In the unfolded state, the linkage lifting mechanism forms a stable triangular support configuration to lock the table height. In the folded state, it drives the table to descend and reset.

[0006] Preferably, the power transmission mechanism includes a power unit located at the bottom of the base frame, a bracket located at the upper end of the base frame, a bearing seat located at the horizontal part of the bracket, and a worm gear rotatably connected to the power unit inside the bearing seat.

[0007] Preferably, the power unit includes either a servo motor or a knob. The servo motor is located at the bottom of the base frame, and the knob is located at the end of the worm gear.

[0008] Preferably, the linkage includes a support plate set on the upper end of the base frame, a rotating shaft rotatably connected to the support plate, a U-shaped frame on the outer wall of the rotating shaft, a main shaft fixed to the inner wall of the U-shaped frame, and a worm gear on the outer wall of the main shaft, which meshes with a worm.

[0009] Preferably, the load-bearing linkage assembly includes a first linkage fixed to the back of the U-shaped frame, a second linkage hinged to the end of the first linkage, a hinge seat provided on the lower surface of the horizontal support plate, and the end of the second linkage hinged to the hinge seat.

[0010] Preferably, the lower end of the support leg is provided with an anti-slip pad, and the surface of the protective pad is provided with raised protrusions.

[0011] Preferably, the upper surface of the horizontal support plate is provided with reinforcing ribs, and the end face of the reinforcing ribs is connected to the stretch table body.

[0012] The beneficial effects of this utility model are:

[0013] Compared to the traditional bolt-adjustable structure of stretch tables, this solution integrates a power transmission mechanism and a linkage lifting mechanism, thereby achieving rapid and precise adjustment of the table's height. At the same time, the linkage lifting mechanism forms a stable triangular support structure when extended, enhancing the stability of the tabletop. Furthermore, the power transmission mechanism is designed to offer both automatic and manual adjustment flexibility, ensuring that user adjustment needs can be met in different usage scenarios. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of one embodiment of the adjustable stretch table structure of this utility model;

[0015] Figure 2 What is shown is Figure 1 A schematic diagram of one embodiment of the central power unit;

[0016] Figure 3 What is shown is Figure 1 A schematic diagram of another embodiment of the central power unit;

[0017] Figure 4 What is shown is Figure 1 Schematic diagram of the central linkage mechanism;

[0018] Figure 5 What is shown is Figure 1 Schematic diagram of the load-bearing connecting rod assembly.

[0019] Explanation of reference numerals in the attached drawings: 1. Extendable table body; 2. Base frame; 3. Support leg; 4. Horizontal support plate; 5. Bracket; 6. Bearing seat; 7. Worm gear; 8. Servo motor; 9. Knob; 10. Support plate; 11. Rotating shaft; 12. U-shaped frame; 13. Main shaft; 14. Worm gear; 15. Connecting rod one; 16. Connecting rod two; 17. Hinge seat; 18. Reinforcing rib. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-5 This utility model provides an embodiment of a quickly adjustable stretchable table structure, including a horizontally arranged stretchable table body 1 and a base frame 2 supported on the ground. Support legs 3 are fixedly connected to the bottom periphery of the base frame 2. A power transmission mechanism is provided in the central area of ​​the upper surface of the base frame 2. A horizontal support plate 4 is rigidly fixed to the lower surface of the stretchable table body 1. Three sets of linkage lifting mechanisms are provided at the bottom of the horizontal support plate 4. Each set of linkage lifting mechanisms includes interconnected load-bearing linkages and a linkage part that drives the load-bearing linkages. The linkage lifting mechanism is connected to the power transmission mechanism, which drives the load-bearing linkages in the linkage lifting mechanism to work, forcing the load-bearing linkages to produce synchronous planar unfolding or folding movements, causing the stretchable table body 1 to continuously rise and fall in the vertical direction. In the unfolded state, the linkage lifting mechanism forms a stable triangular support configuration to lock the tabletop height; in the folded state, it drives the tabletop to descend and reset, thus extending the stretchable table body. 1 is the main working surface in the entire stretch table structure, used by users to place items and perform operations. The base frame 2 must have sufficient strength and rigidity to bear the weight of the stretch table body 1, the horizontal support plate 4, and the linkage lifting mechanism. The power transmission mechanism is the power source that drives the linkage lifting mechanism to achieve the unfolding or folding action of the linkage lifting mechanism, thereby controlling the lifting and lowering of the stretch table body 1. The horizontal support plate 4 serves to connect the stretch table body 1 and the linkage lifting mechanism. The linkage lifting mechanism is connected to the power transmission mechanism. Driven by the power transmission mechanism, the load-bearing linkage group produces synchronous planar unfolding or folding action, thereby driving the stretch table body 1 to continuously lift and lower in the vertical direction. In the unfolded state, the linkage lifting mechanism forms a stable triangular support structure, locking the table height and ensuring the stability of the stretch table body 1 at a specific height. In the folded state, it drives the table to descend and reset, realizing the rapid adjustment of the stretch table height.

[0022] Please see Figure 2 one Figure 4In this embodiment, the power transmission mechanism includes a power unit located at the bottom of the base frame 2. A support 5 is located at the upper end of the base frame 2, and a bearing seat 6 is located on the horizontal part of the support 5. A worm gear 7, rotatably connected to the power unit, is rotatably connected inside the bearing seat 6. The power unit can be either a servo motor 8 or a knob 9. The servo motor 8 is located at the bottom of the base frame 2, and the knob 9 is located at the end of the worm gear 7. The linkage includes a support plate 10 located at the upper end of the base frame 2. A rotating shaft 11 is rotatably connected to the support plate 10. A U-shaped frame 12 is provided on the outer wall of the rotating shaft 11, and a main shaft 13 is fixedly connected to the inner wall of the U-shaped frame 12. A worm wheel 14 is provided on the outer wall of the main shaft 13, and the worm wheel 14 meshes with the worm gear 7. The load-bearing connecting rod assembly includes... The system includes a connecting rod 15 fixed to the back of the U-shaped frame 12, with a connecting rod 16 hinged to the end of the connecting rod 15. A hinge seat 17 is provided on the lower surface of the horizontal support plate 4, and the end of the connecting rod 16 is hinged to the hinge seat 17. A servo motor 8 is located at the bottom of the base frame 2, serving as a power source for the power transmission mechanism. The servo motor 8 features high precision, fast response, and strong controllability. By precisely controlling the speed, direction, and rotation time of the servo motor 8, power can be accurately provided to the worm gear 7, thereby achieving precise drive of the connecting rod lifting mechanism. A knob 9 is located at the end of the worm gear 7, serving as another power source for the power transmission mechanism, providing the operator with a way to manually drive the worm gear 7 to rotate. When there is no power supply or when manual fine-tuning of the stretching table height is required, the operator can directly drive the worm gear 7 to rotate by turning knob 9. This manual operation method increases the flexibility and operability of the stretching table height adjustment. Bracket 5 provides an installation position for bearing seat 6. The worm gear 7 is rotatably connected in bearing seat 6. The bearing seat 6 reduces the friction of the worm gear 7 during rotation through its internal bearing structure, allowing the worm gear 7 to rotate smoothly. Support plate 10 provides rotational support for shaft 11. When the worm gear 7 rotates, it drives the worm wheel 14 to rotate through meshing, which in turn drives the main shaft 13 and U-shaped frame 12 to rotate. This transmission method of worm wheel 14 and worm gear 7 has a self-locking function, that is, when the worm gear 7 stops... After the rotation stops, the worm gear 14 and the U-shaped frame 12 can remain stationary and will not rotate on their own due to external forces. This ensures that the stretch table body 1 can be stably maintained in the position after being adjusted to a specific height, thus improving the stability and safety of the stretch table structure. When the U-shaped frame 12 rotates, it drives the first connecting rod 15 to move, and the first connecting rod 15 drives the second connecting rod 16 to move. The second connecting rod 16 transmits the motion to the horizontal support plate 4 through the hinge with the hinge seat 17, thereby driving the stretch table body 1 to perform lifting and lowering motion. This linkage transmission mechanism can convert the rotational motion into the vertical lifting and lowering motion of the stretch table body 1. At the same time, through the linkage of multiple connecting rods, the stability and continuity of the lifting and lowering of the stretch table body 1 are achieved.

[0023] Please see Figure 1In this embodiment, the lower end of the support leg 3 is provided with an anti-slip pad, the surface of the protective pad is arrayed with protrusions, the upper surface of the horizontal support plate 4 is provided with a reinforcing rib 18, the end face of the reinforcing rib 18 is connected to the stretch table body 1, the anti-slip pad can increase the friction between the support leg 3 and the ground, the protrusions further enhance the anti-slip effect, and the reinforcing rib 18 plays the role of increasing the strength and rigidity of the horizontal support plate 4, which can better bear the weight of the stretch table body 1 and the items on it, and reduce the deformation of the horizontal support plate 4 during the stress process.

[0024] Working principle: First, the user selects the power source of the power transmission mechanism according to the requirements. If high precision and fast response automatic adjustment are required, the servo motor 8 is started. If there is no power supply or manual fine adjustment is required, the user can manually drive the worm 7 to rotate by rotating the knob 9 set at the end of the worm 7. The rotation of the servo motor 8 or the knob 9 transmits power to the worm 7 connected to it, and the worm 7 rotates smoothly in the bearing seat 6.

[0025] Next, the rotation of the worm 7 drives the worm wheel 14 to rotate through meshing. The worm wheel 14 is fixed to the main shaft 13, so the main shaft 13 also rotates. The rotation of the main shaft 13 further drives the U-shaped frame 12 fixed to it to rotate on the support plate 10. The support plate 10 provides stable rotation support for the rotating shaft 11.

[0026] As the U-shaped frame 12 rotates, the connecting rod 15, which is fixed to the back of the U-shaped frame 12, begins to move. The end of the connecting rod 15 is hinged to the connecting rod 2 16. Therefore, the movement of the connecting rod 15 will drive the movement of the connecting rod 2 16. The end of the connecting rod 2 16 is hinged to the hinge seat 17 at the lower end of the horizontal support plate 4. Therefore, the movement of the connecting rod 2 16 will be transmitted to the horizontal support plate 4.

[0027] Driven by the second connecting rod 16, the horizontal support plate 4 begins to move up and down in the vertical direction. Since the horizontal support plate 4 is rigidly fixed to the stretching table body 1, the stretching table body 1 also moves up and down. The entire lifting process converts the rotational motion into vertical lifting motion through the linkage transmission mechanism, realizing the rapid adjustment of the height of the stretching table body 1.

[0028] During the lifting process, the linkage lifting mechanism forms a stable triangular support structure in the unfolded state, locking the table height and ensuring the stability of the extended table body 1 at a specific height. When it is necessary to lower, the linkage lifting mechanism folds, causing the table to descend and reset.

[0029] Through the above steps, by integrating the power transmission mechanism and the linkage lifting mechanism, the height can be adjusted quickly and accurately. The linkage lifting mechanism unfolds into a triangular support, which enhances stability. The power transmission mechanism has the flexibility of both automatic and manual adjustment, solving the problems of tedious and time-consuming manual height adjustment by rotating the bolt, which relies entirely on manual operation, increases labor intensity, and reduces ease of use.

Claims

1. A quick-adjustable pull-out table structure, comprising a horizontally arranged pull-out table body (1) and a base frame (2) supported on the ground, wherein support legs (3) are fixedly connected to the bottom periphery of the base frame (2); characterized in that: A power transmission mechanism is provided in the central area of ​​the upper surface of the base frame (2). A horizontal support plate (4) is rigidly fixed on the lower surface of the stretch table body (1). Three sets of linkage lifting mechanisms are provided at the bottom of the horizontal support plate (4). Each set of linkage lifting mechanisms includes a load-bearing linkage group that is linked to each other and a linkage part that drives the load-bearing linkage group to work. The linkage lifting mechanism is connected to the power transmission mechanism. The power transmission mechanism drives the load-bearing linkage group in the linkage lifting mechanism to work, forcing the load-bearing linkage group to produce synchronous planar unfolding or folding action, and driving the stretch table body (1) to continuously lift and move in the vertical direction. When unfolded, the linkage lifting mechanism forms a stable triangular support structure to lock the desktop height, and when folded, it drives the desktop to descend and reset.

2. The adjustable stretchable table structure according to claim 1, characterized in that: The power transmission mechanism includes a power unit located at the bottom of the base frame (2), a bracket (5) located at the upper end of the base frame (2), a bearing seat (6) located at the horizontal part of the bracket (5), and a worm gear (7) rotatably connected to the power unit inside the bearing seat (6).

3. The quickly adjustable stretchable table structure according to claim 2, characterized in that: The power unit includes either a servo motor (8) or a knob (9). The servo motor (8) is located at the bottom of the base frame (2), and the knob (9) is located at the end of the worm (7).

4. The adjustable stretchable table structure according to claim 3, characterized in that: The linkage includes a support plate (10) set on the upper end of the base frame (2), a rotating shaft (11) is rotatably connected to the support plate (10), a U-shaped frame (12) is provided on the outer wall of the rotating shaft (11), a main shaft (13) is fixedly connected to the inner wall of the U-shaped frame (12), a worm wheel (14) is provided on the outer wall of the main shaft (13), and the worm wheel (14) is meshed with the worm (7).

5. The quickly adjustable stretchable table structure according to claim 4, characterized in that: The load-bearing linkage group includes a first link (15) fixed to the back of the U-shaped frame (12), a second link (16) hinged to the end of the first link (15), and a hinge seat (17) provided on the lower surface of the horizontal support plate (4). The end of the second link (16) is hinged to the hinge seat (17).

6. The quickly adjustable stretchable table structure according to claim 5, characterized in that: The lower end of the support leg (3) is provided with an anti-slip pad, and the surface of the protective pad is provided with protrusions.

7. The quickly adjustable stretchable table structure according to claim 6, characterized in that: The upper surface of the horizontal support plate (4) is provided with a reinforcing rib (18), and the end face of the reinforcing rib (18) is connected to the stretch table body (1).

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