Electric lifting platform

Abstract

The utility model discloses electric lifting platform, including support base, the support base is installed with the fixed frame, the fixed frame rotatably installed with the lead screw in, the support base still is provided with lifting drive assembly, the nut base is sleeved on the lead screw, the nut base is connected with the movable frame, and the top of movable frame is connected with the work platform, the top of fixed frame department sets up the limit frame, every side of movable frame bottom end part all is installed with the steady frame, and the steady frame is provided with the steady protruding portion, in the utility model, the fixed frame and movable frame constitute the main orientation structure, and the cooperation precision lead screw drive can realize the lifting movement of movable frame, be provided with a plurality of steady frames on movable frame, and the steady protruding portion on every steady frame forms the vice orientation system, can effectively restrain the lateral vibration of movable frame in the lifting movement process, wherein, the elastic deformation setting of steady protruding portion can have the orientation and the impact absorption function, can further promote the stability and reliability of operation.

Description

Technical Field

[0001] This utility model relates to the field of instrument support platform technology, and in particular to an electric lifting platform. Background Technology

[0002] In fields such as scientific research instruments, industrial equipment, and medical equipment, the lifting mechanism of the support platform is a key functional module, and its performance directly affects the applicability and operational accuracy of the equipment. The lifting mechanism should meet the following core requirements: 1. Ergonomic adaptation: It needs to adapt to the height differences and operating posture requirements of different operators, achieving stepless height adjustment; 2. Space optimization: By reusing vertical space, it improves equipment layout efficiency and reduces the space occupied for transportation and storage. Currently, the mainstream lifting mechanisms mainly adopt the following technical solutions: 1. Hydraulic / pneumatic drive: Relying on fluid pressure to achieve lifting, it has the characteristics of high load-bearing capacity, but there are risks of fluid leakage and maintenance complexity; 2. Electric actuator drive: Adopting mechatronics design, it has high control accuracy, but there are thrust limitations and mechanical backlash issues; 3. Motor direct drive type: Lifting is achieved through mechanical transmission such as lead screws, gears, and racks, with a simple structure, but the dynamic response characteristics need improvement. Taking the third type of drive as an example, it is prone to large swaying and complex anti-shake structure during the lifting process. The current approach is to improve the material of the drive structure and the complex anti-shake structure, but this will increase the production cost and is not economically feasible, thus reducing the practicality of the application. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned problems of the prior art and provide an electric lifting platform with the advantages of simple structure, stable and reliable operation, and low production cost.

[0004] The objective of this utility model is mainly achieved through the following technical solutions:

[0005] An electric lifting platform includes a support base, a fixed frame mounted on the support base, a lead screw rotatably mounted inside the fixed frame via a mounting bracket, a lifting drive assembly for driving the lead screw to rotate on the support base, a nut seat fitted on the lead screw, a movable frame that can move up and down relative to the fixed frame and can be stored inside the fixed frame, and a working platform connected to the top of the movable frame.

[0006] The top of the fixed frame is equipped with a limit bracket to restrict the upward movement of the movable frame to its extreme position;

[0007] Each side of the bottom end of the movable frame is equipped with a stabilizing frame, which has an outward protrusion that can abut against the inner wall of the fixed frame.

[0008] Furthermore, the stabilizing protrusion is formed by the outward pressing of the stabilizing frame, and correspondingly, the inner surface of the stabilizing frame has a stabilizing groove adapted to the stabilizing protrusion.

[0009] Furthermore, the stabilization frame is detachably connected to the movable frame;

[0010] The inner side of the stabilization frame is provided with snap-fit ​​protrusions;

[0011] The movable frame has snap-fit ​​through holes that can mate with snap-fit ​​protrusions.

[0012] Furthermore, the limiting frame is detachably connected to the fixed frame;

[0013] The limiting frame has a locking section that can be locked onto the inner wall of the fixed frame and can cooperate with the top of the stabilizing frame, and an anti-detachment section that connects to the top of the locking section and can be adapted to the top of the fixed frame.

[0014] Furthermore, each side of the top end of the fixing frame is provided with a snap-fit ​​opening;

[0015] Each side of the latching section has a locking protrusion that can be adapted to the latching port. The outer surface of the locking protrusion is inclined, and the axial width of the locking protrusion gradually decreases from top to bottom.

[0016] Furthermore, each side of the snap-fit ​​segment has two deformable notches located on both sides of the locking protrusion.

[0017] Furthermore, the thickness of each side of the snap-fit ​​segment gradually decreases from top to bottom.

[0018] Furthermore, each side of the bottom end of the movable frame is provided with a deformation opening located above the stabilization frame.

[0019] Furthermore, the support base is also connected to a shielding housing located outside the fixed frame and capable of surrounding the lifting drive assembly;

[0020] The bottom of the support base is equipped with several casters.

[0021] Furthermore, the lifting drive assembly includes a lifting drive device, and the output shaft of the lifting drive device has a transmission worm gear;

[0022] The bottom end of the lead screw is fitted with a transmission worm gear that can mesh with the transmission worm.

[0023] This utility model has the following beneficial effects: Through innovative structural design and optimization, this utility model achieves multiple performance improvements of the lifting platform, specifically:

[0024] 1. Significantly improved motion stability: The fixed frame is designed as a dominant directional structure, which, together with a precision screw drive, enables the lifting and lowering of the movable frame. The movable frame is equipped with multiple stabilizing frames, and the stabilizing protrusions on each stabilizing frame form a secondary guide system, which can effectively suppress the lateral vibration of the movable frame during lifting and lowering. In particular, the elastic deformation setting of the stabilizing protrusions can have both guiding and shock absorption functions, which can further improve the stability and reliability of operation.

[0025] 2. Optimized assembly and maintenance performance: The snap-fit ​​protrusions and snap-fit ​​through holes facilitate the installation and removal of the stabilizing frame on the movable frame; the deformable through-holes facilitate the installation and removal of the movable frame on the fixed frame; and the snap-fit ​​sections and anti-detachment sections facilitate the installation and removal of the limiting frame on the fixed frame.

[0026] 3. Enhanced safety and reliability: The limit frame provides a mechanical stop for the movable frame, preventing it from moving excessively upwards and detaching from the fixed frame; the locking protrusion and the snap-fit ​​opening form a self-locking structure, preventing the limit frame from accidentally moving upwards and detaching from the fixed frame. The design of the deformation notch allows the locking protrusion to undergo corresponding elastic deformation without damaging the limit frame, adapting to different working conditions.

[0027] As can be seen, this utility model adopts a simplified structure, which can achieve motion stability, ease of assembly and use without significantly increasing production costs. Attached Figure Description

[0028] To more clearly illustrate the embodiments of this utility model, the accompanying drawings used in describing the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments recorded in this utility model. Those skilled in the art can derive other drawings from the following drawings without any creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the electric lifting platform according to a specific embodiment of the present invention when it is raised;

[0030] Figure 2 This is a cross-sectional view of a specific embodiment of the electric lifting platform described in this utility model when it is raised;

[0031] Figure 3 This is a schematic diagram of the structure of the electric lifting platform according to a specific embodiment of the present invention during descent;

[0032] Figure 4 This is a cross-sectional view of a specific embodiment of the electric lifting platform described in this utility model during descent;

[0033] Figure 5This is a structural schematic diagram of a specific embodiment of the fixed frame and movable frame in the electric lifting platform of this utility model;

[0034] Figure 6 This is a structural schematic diagram of a specific embodiment of the movable frame and screw drive assembly in the electric lifting platform of this utility model.

[0035] Figure 7 and Figure 8 This is a structural schematic diagram of a specific embodiment of the movable frame and screw drive assembly in the electric lifting platform of this utility model.

[0036] Figure 9 This is a structural schematic diagram of a specific embodiment of the movable frame and nut seat in the electric lifting platform of this utility model;

[0037] Figure 10 This is a structural schematic diagram of a specific embodiment of the stabilization frame in the electric lifting platform described in this utility model;

[0038] Figure 11 and Figure 12 This is a structural schematic diagram of a specific embodiment of the fixed frame and limiting frame in the electric lifting platform of this utility model;

[0039] Figure 13 This is a structural schematic diagram of a specific embodiment of the fixing frame in the electric lifting platform of this utility model;

[0040] Figures 14 to 16 This is a structural schematic diagram of a specific embodiment of the limit frame in the electric lifting platform of this utility model.

[0041] The component names corresponding to the reference numerals in the attached drawings are as follows: 1. Support base, 2. Fixing frame, 3. Mounting frame, 4. Lead screw, 5. Nut seat, 6. Movable frame, 7. Working platform, 8. Limiting frame, 9. Deformation notch, 10. Stabilizing frame, 11. Stabilizing protrusion, 12. Stabilizing groove, 13. Snap-fit ​​port, 14. Snap-fit ​​section, 15. Anti-detachment section, 16. Locking protrusion, 17. Deformation port, 18. Sheath, 19. Lifting drive device, 20. Transmission worm gear, 21. Transmission worm wheel, 22. Snap-fit ​​protrusion, 23. Snap-fit ​​through hole, 24. Fixing component, 25. Universal wheel, 26. Clearance notch. Detailed Implementation

[0042] To enable those skilled in the art to better understand this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] Example 1

[0044] like Figures 1 to 16 As shown, the electric lifting platform includes a support base 1, a fixed frame 2 is installed on the support base 1, a lead screw 4 is rotatably installed in the fixed frame 2 through a mounting bracket 3, the support base 1 is also provided with a lifting drive assembly for driving the lead screw 4 to rotate, a nut seat 5 that cooperates with the lead screw 4 is sleeved on the lead screw 4, the nut seat 5 is connected to a movable frame 6 that can move up and down relative to the fixed frame 2 and can be stored in the fixed frame 2, and a working platform 7 is connected to the top of the movable frame 6;

[0045] The top of the fixed frame 2 is provided with a limiting frame 8 to limit the upward movement of the movable frame 6;

[0046] Each side of the bottom end of the movable frame 6 is equipped with a stabilizing frame 10, and the stabilizing frame 10 has a stabilizing protrusion 11 that protrudes outward and can abut against the inner wall of the fixed frame 2.

[0047] Preferably, the lifting drive assembly includes a lifting drive device 19, and the output shaft of the lifting drive device 19 has a transmission worm gear 20;

[0048] The bottom end of the lead screw 4 is fitted with a transmission worm wheel 21 that can mesh with the transmission worm 20.

[0049] In this embodiment, the lifting drive device 19 can be a geared motor. The fixed frame 2 can not only be used to store the movable frame 6, but also to guide and limit the lifting and moving of the movable frame 6 to obtain reliable stability. Figure 5 As shown, both the fixed frame 2 and the movable frame 6 can be square frame-column structures. Fixtures 24 can be installed on the work platform 7 to secure the corresponding instruments and equipment.

[0050] In application, the lifting drive device 19 is activated. Through the cooperation of the transmission worm gear 20 and the transmission worm wheel 21, the lead screw 4 is driven to rotate. Through the cooperation of the lead screw 4 and the nut seat 5, the movable frame 6 can be moved up and down relative to the fixed frame 2, thereby driving the work platform 7 to rise and fall. During the lifting and moving process, the stabilizing protrusion 11 will abut against the inner wall surface of the fixed frame 2, thus improving the stability of the movable frame 6 and reducing the problems of shaking and vibration. The setting of the limit frame 8 can prevent the movable frame 6 from accidentally detaching from the fixed frame 2, thereby improving the reliability of the operation of this embodiment.

[0051] Each of the aforementioned stabilizing frames 10 has two spaced-apart stabilizing protrusions 11, which increases the contact points between the movable frame 6 and the fixed frame 2, thereby further improving operational stability.

[0052] like Figure 5 As shown, the mounting bracket 2 is provided with a clearance notch 26 for accommodating the lead screw drive assembly.

[0053] Preferably, the stabilizing protrusion 11 is formed by the outward pressing of the stabilizing frame 10, and correspondingly, the inner side of the stabilizing frame 10 has a stabilizing groove 12 adapted to the stabilizing protrusion 11.

[0054] This design allows the stabilizing protrusion 11 to have sufficient elastic deformation force. Thus, when the movable frame 6 is raised or lowered, the stabilizing protrusion 11 can absorb the impact force and achieve a buffering effect through its own deformation capacity, thereby further improving the stability of operation.

[0055] Preferably, the stabilization frame 10 is detachably connected to the movable frame 6;

[0056] The inner side of the stabilization frame 10 is provided with snap-fit ​​protrusions 22;

[0057] The movable frame 6 has a snap-fit ​​through hole 23 that can mate with the snap-fit ​​protrusion 22.

[0058] In this embodiment, the snap-fit ​​protrusions 22 and snap-fit ​​through holes 23 improve the ease of assembling and disassembling the stabilization frame 10, thereby enhancing the simplicity of assembly. Each stabilization frame 10 may have two spaced-apart snap-fit ​​protrusions 22, such as... Figure 10 As shown, correspondingly, each side of the movable frame 6 is provided with two snap-fit ​​through holes 23 that respectively cooperate with the two snap-fit ​​protrusions 22.

[0059] Preferably, the limiting frame 8 is detachably connected to the fixing frame 2;

[0060] The limiting frame 8 has a locking section 14 that can be locked onto the inner wall of the fixed frame 2 and can cooperate with the top of the stabilizing frame 10, and an anti-detachment section 15 that is connected to the top of the locking section 14 and can be adapted to the top of the fixed frame 2.

[0061] In this embodiment, the anti-detachment section 15 serves two purposes: firstly, it prevents the limiting frame 8 from moving excessively downwards; secondly, it can act as a leverage point for assembling and disassembling the limiting frame 8. The snap-fit ​​section 14 improves the ease of assembling and disassembling the limiting frame 8, thereby enhancing the simplicity of assembly.

[0062] Preferably, each side of the top end of the fixing frame 2 is provided with a snap-fit ​​opening 13;

[0063] Each side of the latching section 14 has a locking protrusion 16 that can be adapted to the latching port 13. The outer surface of the locking protrusion 16 is inclined, and the axial width of the locking protrusion 16 gradually decreases from top to bottom.

[0064] In this embodiment, the stability of the detachable connection between the limiting frame 8 and the fixed frame 2 can be further improved by the cooperation of the locking protrusion 16 and the snap-fit ​​opening 13. In application, when the limiting frame 8 moves downward relative to the fixed frame 2, the locking protrusion 16 can deform itself and retract inward to abut against the inner wall of the fixed frame 2. The inclined surface of the locking protrusion 16 facilitates the downward movement of the limiting frame 8 relative to the fixed frame 2. When the limiting frame 8 moves downward to the area of ​​the snap-fit ​​opening 13, the locking protrusion 16 will return to its original position and spring into the snap-fit ​​opening 13 to form a locking structure. In this way, the limiting frame 8 can be prevented from accidentally moving upward to disengage from the fixed frame 2. When it is necessary to disassemble the limiting frame 8, the locking protrusion 16 can be applied inward by external force and the limiting frame 8 can be moved upward simultaneously.

[0065] In order to facilitate the insertion of the limiting frame 8 into the opening at the top of the fixing frame 2, the thickness of each side of the snap-fit ​​section 14 gradually decreases from top to bottom, and the narrower and thinner bottom end is more suitable for insertion into the fixing frame 2.

[0066] Preferably, each side of the snap-fit ​​segment 14 has two deformable notches 9 located on both sides of the locking protrusion 16.

[0067] In this embodiment, the design of the deformation notch 9 facilitates the elastic deformation of the area where the locking protrusion 16 is located to adapt to different states of contact with the inner wall of the fixing frame 2 and locking engagement with the snap-fit ​​opening 13.

[0068] Preferably, each side of the bottom end of the movable frame 6 is provided with a deformation opening 17 located above the stabilizing frame 10.

[0069] In this embodiment, the design of the deformable opening 17 facilitates the adaptive elastic deformation of the bottom end of the movable frame 6, thus making it easy to insert the movable frame 6 from the top of the fixed frame 2. After installation, an upper limit frame 8 is then assembled at the top of the fixed frame 2 to limit the upward movement limit position of the movable frame 6.

[0070] Preferably, the support base 1 is further connected to a shielding housing 18 located around the fixed frame 2 and capable of surrounding the lifting drive assembly;

[0071] The bottom of the support base 1 is equipped with several casters 25.

[0072] In this embodiment, the shielding housing 18 serves both protective and aesthetic purposes; the casters 25 facilitate the movement of this embodiment.

[0073] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An electric lifting platform, comprising a support base (1), a fixed frame (2) mounted on the support base (1), a lead screw (4) rotatably mounted inside the fixed frame (2) via a mounting bracket (3), a lifting drive assembly for driving the lead screw (4) to rotate is also provided on the support base (1), a nut seat (5) cooperating with the lead screw (4) is sleeved on the lead screw (4), the nut seat (5) is connected to a movable frame (6) that can move up and down relative to the fixed frame (2) and can be stored inside the fixed frame (2), and a working platform (7) is connected to the top of the movable frame (6), characterized in that: The top of the fixed frame (2) is provided with a limiting frame (8) to limit the upward movement of the movable frame (6); Each side of the bottom end of the movable frame (6) is equipped with a stabilizing frame (10), and the stabilizing frame (10) has a stabilizing protrusion (11) that protrudes outward and can abut against the inner wall of the fixed frame (2).

2. The electric lift platform according to claim 1, wherein: The stabilizing protrusion (11) is formed by the outward pressing of the stabilizing frame (10), and correspondingly, the inner side of the stabilizing frame (10) has a stabilizing groove (12) adapted to the stabilizing protrusion (11).

3. The electric lift platform according to claim 1, wherein: The stabilization frame (10) is detachably connected to the movable frame (6); The inner side of the stabilization frame (10) is provided with snap-fit ​​protrusions (22); The movable frame (6) has a snap-fit ​​through hole (23) that can cooperate with the snap-fit ​​protrusion (22).

4. The electric lift platform according to claim 1, wherein: The limiting frame (8) is detachably connected to the fixing frame (2); The limiting frame (8) has a locking section (14) that can be locked onto the inner wall of the fixed frame (2) and can cooperate with the top of the stabilizing frame (10) and an anti-detachment section (15) that is connected to the top of the locking section (14) and can be adapted to the top of the fixed frame (2).

5. The electric lift platform according to claim 4, wherein: Each side of the top part of the fixing frame (2) is provided with a card slot (13); Each side of the snap-fit ​​section (14) has a locking protrusion (16) that can be adapted to the snap-fit ​​opening (13). The outer surface of the locking protrusion (16) is inclined, and the axial width of the locking protrusion (16) gradually decreases from top to bottom.

6. The electric lift platform according to claim 5, wherein: Two deformable notches (9) are provided on each side of the snap-fit ​​section (14), located on both sides of the locking protrusion (16).

7. The electric lift platform according to claim 4, wherein: The thickness of each side of the snap-fit ​​segment (14) gradually decreases from top to bottom.

8. The electric lift platform of claim 1, wherein: Each side of the bottom end of the movable frame (6) is provided with a deformation opening (17) located above the stabilizing frame (10).

9. The electric lift platform according to any one of claims 1-8, wherein: The support base (1) is also connected to a shielding shell (18) located outside the fixed frame (2) and capable of surrounding the lifting drive assembly. The bottom of the support base (1) is provided with several casters (25).

10. The electric lift platform according to claim 9, wherein: The lifting drive assembly includes a lifting drive device (19), and the output shaft of the lifting drive device (19) has a transmission worm gear (20). The bottom end of the lead screw (4) is fitted with a transmission worm wheel (21) that can mesh with the transmission worm (20).

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