Double-platform synchronous lifting adjusting mechanism

Abstract

The embodiment of the utility model provides a double-platform synchronous lifting adjusting mechanism, and relates to the technical field of lifting. The double-platform synchronous lifting adjusting mechanism comprises a base, lifting platform assemblies are arranged on the two sides of the base, a hand wheel is rotationally arranged on the portion, close to one side of one lifting platform assembly, of the base, and when the hand wheel is rotated, the two lifting platform assemblies are driven to move at the same time through the hand wheel and a transmission mechanism connected with the lower ends of the two lifting platform assemblies. The high-precision synchronous belt wheel is connected with the hand wheel mechanism and the left and right lifting platform assemblies, so that the synchronism of movement is ensured, high-precision lifting control is realized by designing a special trapezoidal screw-nut pair, the self-locking capability is realized, and free gliding in a non-driving state is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting, in particular to a double-platform synchronous lifting and adjusting mechanism. Background Art

[0002] In the fields of modern mechanical design and automation, synchronous lifting systems are widely used in various industrial and scientific research occasions, such as precision machining, laboratory equipment, automated production lines, and medical equipment.

[0003] These systems require synchronous and precise vertical movement on multiple platforms to ensure the accuracy and safety of operations. However, traditional synchronous lifting systems have certain limitations in terms of flexibility, precision, and operational convenience, especially in situations where a self-locking function, full stroke, or small-range continuous adjustment is required.

[0004] In view of this, this application aims to provide a new type of lifting and adjusting mechanism that integrates synchronous lifting, self-locking function, and flexible adjustment mode to meet the high-standard application requirements of various industrial and scientific research fields. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a double-platform synchronous lifting and adjusting mechanism, which can avoid the limitations of the synchronous lifting system in terms of flexibility, precision, and operational convenience.

[0006] The utility model provides a double-platform synchronous lifting and adjusting mechanism, including a base. Lifting platform components are arranged on both sides of the base. A handwheel is rotatably arranged on the base near one side of one of the lifting platform components. When the handwheel is rotated, the two lifting platform components are driven to move simultaneously through the handwheel and the transmission mechanism connected to the lower ends of the two lifting platform components.

[0007] Preferably, the lifting platform component includes a limiting frame fixed on the base. A lifting plate is slidably arranged in the limiting frame, and a flat plate is arranged at the upper end of the lifting plate.

[0008] Preferably, limiting strips are arranged on both sides of the lifting plate, and the limiting strips are slidably connected with limiting grooves formed on the inner walls of both sides of the limiting frame.

[0009] Preferably, the transmission mechanism includes a first lead screw and a second lead screw. The first lead screw and the second lead screw are both rotatably connected to the base and are respectively located in two limiting frames. The first lead screw and the second lead screw are respectively in threaded connection with lead screw nut pairs embedded in the two lifting plates.

[0010] Preferably, the lower ends of the first lead screw, the second lead screw, and the handwheel are connected by belt pulleys, and a belt is sleeved on the three belt pulleys.

[0011] Preferably, a central shaft is fixedly arranged inside the handwheel. Two grooves are formed on the central shaft. The outer side of the handwheel is plugged with a pin through a jack, and one end of the pin is plugged into the groove.

[0012] Preferably, the two ends of the groove are made into gradually changing spherical surfaces to be deepened, so that the pin realizes centering positioning under the action of elastic force.

[0013] Preferably, two groups of opposite first fence plates and second fence plates are respectively installed around the flat plate.

[0014] Preferably, a first inner plate is slidably arranged inside the first fence plate, and a second inner plate is slidably arranged inside the second fence plate. Connecting plates I are arranged on both sides of the first inner plate, and connecting plates II are arranged on both sides of the second inner plate. The connecting plates I and the second connecting plates II are connected by bolts.

[0015] Preferably, cylinders are installed on both sides of the flat plate, and the piston ends of the two cylinders are connected to the second inner plates on both sides.

[0016] Compared with the prior art, a double-platform synchronous lifting and adjusting mechanism provided by an embodiment of the present invention has the following advantages:

[0017] 1. By adopting a high-precision synchronous pulley to connect the handwheel mechanism and the left and right lifting platform assemblies, the present invention ensures the synchronism of movement. By designing a special trapezoidal lead screw nut pair, not only high-precision lifting control is achieved, but also a self-locking ability is possessed, effectively preventing free sliding in a non-driven state.

[0018] 2. The handwheel adjusting component of the present invention is equipped with a pin, allowing the user to select full-stroke continuous adjustment or small-range continuous adjustment according to specific needs. In the full-stroke mode, after the pin is pulled out, multi-turn full-angle adjustment can be realized, which is suitable for large-range lifting operations; while in the small-range adjustment mode, after the pin is inserted, the adjustment angle is limited, but continuous adjustability is still maintained, which is suitable for quick adjustment and precise positioning on both sides. The special groove design on the central shaft, combined with the pin and the elastic force, ensures that the handwheel can achieve accurate centering positioning at a preset angle in the small-range adjustment mode, greatly improving the operation accuracy and convenience of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1Schematic diagram of the overall structure of the embodiment of the present utility model;

[0021] Figure 2 Schematic diagram of the split of the overall structure of the embodiment of the present utility model;

[0022] Figure 3 Schematic diagram of the structure of the limiting frame of the embodiment of the present utility model;

[0023] Figure 4 Schematic diagram of the structure of the lifting plate of the embodiment of the present utility model;

[0024] Figure 5 Schematic diagram of the structures of the first inner plate and the second inner plate of the embodiment of the present utility model;

[0025] Figure 6 Schematic diagram of the structure of the transmission mechanism of the embodiment of the present utility model;

[0026] Figure 7 Schematic diagram of the structure of the handwheel of the embodiment of the present utility model;

[0027] Figure 8 Schematic cross-sectional view of the structure of the handwheel of the embodiment of the present utility model.

[0028] Reference signs:

[0029] 1. Base; 2. Limiting frame; 3. Limiting groove; 4. Lifting plate; 5. Limiting strip; 6. Flat plate; 7. First railing; 8. Second railing; 9. First inner plate; 10. Second inner plate; 11. First connecting plate; 12. Second connecting plate; 13. Cylinder; 14. First lead screw; 15. Second lead screw; 16. Pulley; 17. Handwheel; 18. Belt; 19. Jack; 20. Pin; 21. Central shaft; 22. Groove; 23. Lead screw nut pair. Detailed implementation manners

[0030] The following will describe in detail some embodiments of the present utility model with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0031] Please refer to Figures 1-8 , the embodiment of the present utility model provides a double-platform synchronous lifting and adjusting mechanism, including a base 1, and lifting platform components are arranged on both sides of the base 1.

[0032] As Figure 2 shown, the lifting platform component includes a limiting frame 2 fixed on the base 1. The inside of the limiting frame 2 is a hollow structure. A lifting plate 4 is slidably arranged inside the limiting frame 2. A flat plate 6 is arranged at the upper end of the lifting plate 4. The lifting plate 4 slides inside the limiting frame 2 to cause the flat plate 6 to move up and down.

[0033] At the same time, limit bars 5 are provided on both sides of the lifting plate 4. The limit bars 5 are slidably connected to the limit grooves 3 opened on the inner walls of both sides of the limit frame 2, which improves the stable sliding of the lifting plate 4.

[0034] A handwheel 17 is rotatably provided on the base 1 near one side of one of the lifting platform assemblies. When the handwheel 17 is rotated, the two lifting platform assemblies are driven to move simultaneously through the handwheel 17 and the transmission mechanism connected to the lower ends of the two lifting platform assemblies, realizing the synchronous lifting of the double platforms.

[0035] As Figure 6 shown, the transmission mechanism includes a first lead screw 14 and a second lead screw 15. The first lead screw 14 and the second lead screw 15 are both rotatably connected to the base 1 and are respectively located in two limit frames 2. The first lead screw 14 and the second lead screw 15 are respectively threadedly connected to the lead screw nut pairs 23 embedded in the two lifting plates 4. The lead screw nut pairs 23 are trapezoidal lead screw nut pairs 23 with a small pitch, and the left and right hand pitches are the same. This design not only provides high-precision lifting control but also has a self-locking function to prevent the platform from sliding down by itself in the non-driven state.

[0036] In order to rotate the first lead screw 14 and the second lead screw 15, pulley 16 are connected to the lower ends of the first lead screw 14, the second lead screw 15, and the handwheel 17. A belt 18 is sleeved on the three pulleys 16. Among them, two pulleys 16 are arranged in a right triangle layout, with the handwheel 17 located at the right angle vertex, and the two lifting platform assemblies are respectively located at the other two vertices, forming a stable support structure.

[0037] As Figure 8 shown, a central shaft 21 is fixedly provided inside the handwheel 17. Two grooves 22 are opened on the central shaft 21. The two ends of the grooves 22 are made into gradually changing spherical surfaces for deepening. At the same time, a plug 20 is inserted into the handwheel 17 through an insertion hole 19. One end of the plug 20 is inserted into the groove 22. The plug 20 realizes centering positioning under the action of elastic force. When the plug 20 is pulled out, it can be continuously adjusted in multiple circles and at all angles to realize large-stroke lifting; after being inserted, it can only be adjusted at a certain angle, continuously adjustable, and with precise positioning on both sides.

[0038] As Figure 4 shown, two groups of opposite first guard plates 7 and second guard plates 8 are respectively installed around the flat plate 6 to improve the safety of the flat plate 6.

[0039] A first inner plate 9 is slidably arranged inside the first guard plate 7, and a second inner plate 10 is slidably arranged inside the second guard plate 8. Connecting plates 11 are arranged on both sides of the first inner plate 9, and connecting plates 12 are arranged on both sides of the second inner plate 10. The connecting plates 11 and the second connecting plates 12 are connected by bolts. After connecting the two first inner plates 9 and the two second inner plates 10, as long as the second inner plates 10 on both sides are slid upward, the two first inner plates 9 can be lifted upward to expand the protection area.

[0040] For automatic adjustment, cylinders 13 are installed on both sides of the flat plate 6. The piston ends of the two cylinders 13 are connected to the second inner plates 10 on both sides. The cylinders 13 are used to push the second inner plates 10 to achieve the free sliding of the first inner plate 9 and the second inner plate 10.

[0041] In summary, the working principle of a double-platform synchronous lifting and adjusting mechanism according to an embodiment of the present invention is as follows: A high-precision synchronous pulley is used to connect the handwheel 17 and the left and right lifting platform assemblies, ensuring the synchronism of movement. By designing a special trapezoidal screw-nut pair 23, not only high-precision lifting control is achieved, but also self-locking ability is provided, effectively preventing free sliding in the non-driven state. The adjusting component of the handwheel 17 is equipped with a plug pin 20. After the plug pin 20 is pulled out, multi-turn full-angle adjustment can be achieved, which is suitable for large-range lifting operations; in the small-range adjustment mode, after the plug pin 20 is inserted, the adjustment angle is limited, but continuous adjustability is still maintained, which is suitable for quick adjustment and precise positioning on both sides. The special groove 22 design on the central shaft 21, in cooperation with the plug pin 20 and the elastic force, ensures that the handwheel 17 can achieve precise centering and positioning at a preset angle in the small-range adjustment mode.

[0042] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dual-platform synchronous lifting and adjusting mechanism, comprising a base (1), characterized in that: Lifting platform components are provided on both sides of the base (1). A handwheel (17) is rotatably provided on the base (1) near one side of the lifting platform component. When the handwheel (17) is rotated, the two lifting platform components are driven to move simultaneously through the handwheel (17) and the transmission mechanism connected to the lower ends of the two lifting platform components.

2. The dual-platform synchronous lifting and adjusting mechanism according to claim 1, wherein: The lifting platform component includes a limit frame (2) fixed on the base (1). A lifting plate (4) is slidably provided in the limit frame (2). A flat plate (6) is provided at the upper end of the lifting plate (4).

3. The dual-platform synchronous lifting and adjusting mechanism according to claim 2, wherein: Limit strips (5) are provided on both sides of the lifting plate (4). The limit strips (5) are slidably connected to limit grooves (3) formed on the inner walls of both sides of the limit frame (2).

4. The dual-platform synchronous lifting and adjusting mechanism according to claim 3, wherein: The transmission mechanism includes a first lead screw (14) and a second lead screw (15). The first lead screw (14) and the second lead screw (15) are both rotatably connected to the base (1) and are respectively located in two limit frames (2). The first lead screw (14) and the second lead screw (15) are respectively threadedly connected to lead screw nut pairs (23) embedded in the two lifting plates (4).

5. The dual-platform synchronous lifting and adjusting mechanism according to claim 4, wherein: The lower ends of the first lead screw (14), the second lead screw (15) and the handwheel (17) are all connected by belt pulleys (16). A belt (18) is sleeved on the three belt pulleys (16).

6. The dual-platform synchronous lifting and adjusting mechanism according to claim 5, wherein: A central shaft (21) is fixedly provided inside the handwheel (17). Two grooves (22) are formed on the central shaft (21). A plug pin (20) is inserted into the handwheel (17) through an insertion hole (19). One end of the plug pin (20) is inserted into the groove (22).

7. The dual-platform synchronous lifting and adjusting mechanism according to claim 6, wherein: Both ends of the groove (22) are gradually changed to a spherical surface for deepening, so that the plug pin (20) realizes centering positioning under the action of elastic force.

8. The dual-platform synchronous lifting and adjusting mechanism according to claim 2, wherein: Two sets of opposite first guard plates (7) and second guard plates (8) are respectively installed around the flat plate (6).

9. The dual-platform synchronous lifting and adjusting mechanism according to claim 8, characterized in that: A first inner plate (9) is slidably provided in the first guard plate (7). A second inner plate (10) is slidably provided in the second guard plate (8). Connecting plates one (11) are provided on both sides of the first inner plate (9). Connecting plates two (12) are provided on both sides of the second inner plate (10). The connecting plates one (11) and the second connecting plates two (12) are connected by bolts.

10. The dual-platform synchronous lifting and adjusting mechanism according to claim 9, characterized in that: Cylinders (13) are installed on both sides of the flat plate (6). The piston ends of the two cylinders (13) are connected to the second inner plates (10) on both sides.

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