Lifting platform

Abstract

The invention relates to the field of mechanical equipment, in particular to a lifting platform which comprises pedals, lifting devices and a driving device, the lifting devices are symmetrically installed on the two sides of the driving device, the pedals are arranged at the tops of the lifting devices, and each lifting device comprises a plurality of supporting frames, a fixed pulley, a screw, a transmission chain and a steel wire rope. The transmission chain is connected with the bottom of the screw in a meshed mode, the supporting frames are connected through limiting blocks in a sliding mode, the two ends of the steel wire rope are connected with the two supporting frames respectively, a lifting structure is arranged in the screw in a sleeved mode, and the lifting structure is fixedly connected with the supporting frames. The transmission chain drives the screw to rotate to lift the lifting structure step by step, the screw and the steel wire rope are combined, the screw is driven by the transmission chain to rotate to lift, the driving device is arranged at the bottom to lower the gravity center of the equipment, the transmission assembly is designed in a hidden mode to avoid damage, and parts are connected in a sleeving and pin connection mode. And the reliability of equipment is improved.

Description

Technical Field

[0001] The invention relates to the field of mechanical equipment, and in particular to a lifting platform. Background Art

[0002] With the rapid advancement of science and technology, industrial automation technology has penetrated into all areas of production and manufacturing, significantly improving production efficiency and reducing labor costs. As an important production auxiliary equipment, the automation upgrade of the lifting platform has become an inevitable trend in the development of the industry. Especially in the field of construction, the application of the lifting platform is of great significance to improving construction efficiency and ensuring personnel safety.

[0003] Traditional lifting platforms mostly rely on manual operation, which not only consumes a lot of manpower and time, but also has certain safety hazards during operation. Due to the limitations of manual operation, the lifting speed, stability and accuracy of the lifting platform are often difficult to guarantee, which to a certain extent limits its wide application in construction.

[0004] In order to solve these problems, the automatic lifting platform came into being. This new type of lifting platform integrates advanced mechanical transmission, controller and other technologies, and realizes the rapid, stable and precise lifting of the lifting platform through the automatic control system. Compared with the traditional lifting platform, the automatic lifting platform has significant advantages in improving work efficiency, reducing labor intensity and ensuring construction safety.

[0005] However, existing automatic lift designs often have problems such as complex structure, high manufacturing cost, and difficult installation and maintenance. The complex mechanical structure and control system not only increase the manufacturing cost of the lift, but also easily cause failures during use, affecting its reliability and stability. In addition, the high maintenance cost also increases the user's burden, limiting the popularity and application of automatic lifts.

[0006] Therefore, how to develop an automatic lifting platform with simple structure, convenient operation and low cost under the premise of ensuring the automatic operation of the lifting platform and improving production efficiency and accuracy has become an urgent problem to be solved by current technical personnel in this field. This will not only help improve construction efficiency and reduce labor costs, but also help improve construction safety. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a lifting platform with a simple structure and easy operation. The platform is transmitted by the cooperation of a transmission chain and a screw rod, and the lifting is performed by the self-rotation of the screw rod, so that the lifting process is stable and efficient. The manufacturing cost is low, and the overall structure is easy to manufacture. The sleeve connection and pin connection between the components are convenient for installation, which effectively improves the production efficiency.

[0008] The technical problem to be solved by the present invention is achieved through the following technical solutions: A lifting platform, characterized in that it includes a foot pedal, a lifting device and a driving device, the lifting device is symmetrically installed on both sides of the driving device, the foot pedal is arranged on the top of the lifting device, the lifting device includes a plurality of support frames, a fixed pulley, a screw rod, a transmission chain and a steel wire rope, the transmission chain is meshed and connected with the bottom of the screw rod, and the support frames are slidably connected through a limit block, the two ends of the steel wire rope are respectively connected to the two support frames, the inner sleeve of the screw rod is provided with a lifting structure, the lifting structure is fixedly connected to the support frame, and the transmission chain drives the screw rod to rotate and lift the lifting structure step by step.

[0009] In the above scheme, preferably, the foot pedal includes a hook and a fence, the fence is arranged on the foot pedal along the side, the hook is arranged on the left and right sides of the foot pedal, and the foot pedal is fixedly connected to the lifting frame through the hook.

[0010] In the above scheme, preferably, the driving device includes a driving motor, a transmission shaft and a bracket, the driving motor is connected to the transmission shaft, the transmission shaft drives the transmission chain, the transmission chain is rotatably connected to the transmission shaft, and the driving motor is fixedly mounted on the bracket.

[0011] In the above solution, preferably, the bracket sleeve is connected to the lifting devices on the left and right sides.

[0012] In the above scheme, preferably, the lifting structure includes a sliding rod and a stud, the outer surface of the sliding rod is a regular polygon, and the interior is provided with an internal thread that cooperates with the stud, and the stud is arranged inside the sliding rod.

[0013] In the above solution, preferably, rollers and feet are provided at the bottom of the lifting device.

[0014] In the above scheme, preferably, a plurality of stabilizing bars are provided between the lifting devices, and the stabilizing bars are connected to the lifting devices on the left and right sides by pins.

[0015] In the above solution, preferably, the limit blocks are fixedly installed at the upper and lower ends of the support frame.

[0016] In the above solution, preferably, the screw rod, the steel wire rope and the fixed pulley are all arranged inside the support frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: this scheme provides a lifting platform, which adopts a combination of a screw and a wire rope, and drives the screw to rotate and lift through a transmission chain. The operation process is stable, and the bottom space is used to place the driving device to save space, lower the overall center of gravity, and have a neat appearance. The transmission component is designed to be hidden to prevent damage during construction. The various components are connected by sleeves and pins, and the installation is convenient, which improves the safety and reliability of this product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the transmission chain structure of the present invention.

[0021] Figure 3 It is an enlarged view of the transmission chain structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the screw of the present invention in a retracted state.

[0023] Figure 5 It is a schematic diagram of the lifting state of the present invention.

[0024] Figure 6 It is a schematic diagram of the unfolded state of the screw of the present invention.

[0025] Figure 7 It is a schematic diagram of the extended state of the screw of the present invention.

[0026] Figure 8 It is an enlarged view of the lifting structure of the present invention.

[0027] Fig. 9 It is a schematic diagram of the screw of the present invention in a retracted state.

[0028] Fig.10 It is a schematic diagram of the lifting state of the support frame of the present invention.

[0029] Fig.11 It is a schematic diagram of the structure of the foot pedal of the present invention.

[0030] Fig.12 It is a schematic diagram of the structure of the driving device of the present invention.

[0031] Fig.13 It is a schematic diagram of the structure of the lifting device of the present invention.

[0032] In the figure: 1. lifting device; 2. driving device; 3. foot pedal; 4. support frame; 5. fixed pulley; 6. screw; 7. transmission chain; 8. wire rope; 9. hook; 10. fence; 11. driving motor; 12. transmission shaft; 13. bracket; 14. sliding rod; 15. stud; 16. roller; 17. foot seat; 18. stabilizer bar; 19. limit block. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments described in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] An embodiment of the present invention provides a lifting platform. Embodiment 1, as Figures 1 to 13 As shown, the present invention provides a lifting platform, whose main structure includes a foot pedal 3, a lifting device 1 and a driving device 2, the lifting device 1 is symmetrically installed on both sides of the driving device 2, the foot pedal 3 is arranged on the top of the lifting device 1, the lifting device 1 includes a plurality of support frames 4, a fixed pulley 5, a transmission chain 7, a screw 6 and a wire rope 8, the transmission chain 7 and the bottom of the screw 6 are meshed and connected, and the support frames 4 are slidably connected through a limit block 19, the two ends of the wire rope 8 are respectively connected to the support frame 4, the screw 6 is sleeved with a lifting structure, the lifting structure is fixedly connected to the support frame 4, the lifting structure includes a slide bar 14 and a stud 15, the slide bar 14 is a regular polygon, the stud 15 A regular polygonal through hole is provided inside the slide bar 14 to match the outer surface of the slide bar 14. When the screw rod 6 rotates, it drives the slide bar 14 to rotate. The stud 15 is arranged inside the slide bar 14, and the two are threadedly connected. The top of the stud 15 is fixedly connected to the support frame 4. When the slide bar 14 rotates, the stud 15 slowly extends out through threaded rotation to lift the support frame 4. The two ends of the wire rope 8 are respectively connected to the two support frames 4. When the stud 15 lifts the support frame 4, the pulling direction of the wire rope 8 is changed by the fixed pulley 5, so as to drive the support frame 4 of the next level to rise, so as to realize the step-by-step lifting of the support frame 4. The stud 15 changes the direction of rotation to control the rise or fall of the support frame 4.

[0035] During the installation process, the fence 10 is connected to the foot pedal 3 through the reserved limiting holes to form a workbench space at the top. Hooks 9 are fixedly installed on both sides of the foot pedal 3, which are clamped on the top of the support frame 4 through the hooks 9. When disassembling, the foot pedal 3 only needs to be lifted and unhooked to achieve quick disassembly. Two limiting blocks 19 are respectively connected to the upper and lower ends of the support frame 4. The upper limiting block 19 opens outward and the lower limiting block 19 opens inward. During installation, the upper end of the support frame 4 is slidably connected to the upper-level support frame 4, and the lower end is slidably connected to the next-level support frame 4 to achieve step-by-step sliding and lifting between the support frames 4. The screw rod 6, the wire rope 8 and the fixed pulley 5 are arranged inside the support frame 4. The transmission assembly is designed to be hidden to prevent damage during construction. The drive device 2 includes a drive motor 11, a transmission shaft 12 and a bracket 13. The driving motor 11 is rotationally connected to the transmission shaft 12, and the driving motor 11 is arranged at the bottom and fixedly installed between the lifting devices 1 on both sides through a bracket 13. The bracket 13 and the lifting device 1 are sleeve-connected, and a stabilizing bar 18 is provided between the lifting devices 1. The stabilizing bar 18 is pin-connected to the lifting device 1 and fixedly installed on the side of the lifting device 1 through a cotter pin. Rollers 16 and feet 17 are provided at the bottom of the lifting device 1, and the lifting device 1 can be moved and transported at any time through the rollers 16, and is firmly supported by the feet 17.

[0036] Working principle: During use, turn on the drive motor 11 to drive the transmission shaft 12 to rotate, the transmission shaft 12 and the transmission chain 7 are meshing transmission, and the transmission chain 7 drives the screw 6 to rotate. Because the lifting structure in the screw 6 is fixedly connected to the support frame 4, during the rotation of the screw 6, the stud 15 in the lifting structure moves upward through the thread rotation, driving the support frame 4 to lift, and the support frames 4 slide up and down under the limit fixation of the limit block 19. During the lifting process, the support frame 4 pulls the next-level support frame 4 upward through the steel wire rope 8 and the fixed pulley 5, and the slide bar 14 in the lifting structure moves upward accordingly, so as to achieve the purpose of step-by-step lifting. The lifting structure in the screw 6 is controlled by the drive motor 11 to be retracted or unfolded to control the support frame 4 to rise or fall.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lifting platform, Features: The invention comprises a foot pedal (3), a lifting device (1) and a driving device (2), wherein the lifting device (1) is symmetrically mounted on both sides of the driving device (2), the foot pedal (3) is arranged on the top of the lifting device (1), and the lifting device (1) comprises a plurality of support frames (4), a fixed pulley (5), a screw rod (6), a transmission chain (7) and a steel wire rope (8), wherein the transmission chain (7) is meshingly connected with the bottom of the screw rod (6), and the support frames (4) are slidably connected with each other through a limit block (19), and the two ends of the steel wire rope (8) are respectively connected to the two support frames (4), and a lifting structure is sleeved inside the screw rod (6), and the lifting structure is fixedly connected to the support frame (4), and the transmission chain (7) drives the screw rod (6) to rotate and lift the lifting structure step by step.

2. A lifting platform according to claim 1, Features: The foot pedal (3) comprises a hook (9) and a fence (10), wherein the fence (10) is arranged on the side of the foot pedal (3), and the hook (9) is arranged on the left and right sides of the foot pedal (3). The foot pedal (3) is fixedly connected to the lifting frame via the hook (9).

3. A lifting platform according to claim 1, Features: The driving device (2) comprises a driving motor (11), a transmission shaft (12) and a bracket (13); the driving motor (11) is connected to the transmission shaft (12); the transmission shaft (12) drives the transmission chain (7); the transmission chain (7) is rotationally connected to the transmission shaft (12); and the driving motor (11) is fixedly mounted on the bracket (13).

4. A lifting platform according to claim 3, Features: The bracket (13) is sleeved and connected to the lifting devices (1) on the left and right sides.

5. A lifting platform according to claim 1, Features: The lifting structure comprises a sliding rod (14) and a stud (15); the outer surface of the sliding rod (14) is a regular polygon and the interior is provided with an internal thread that matches the stud (15); the stud (15) is arranged inside the sliding rod (14).

6. A lifting platform according to claim 5, Features: The bottom of the lifting device (1) is provided with rollers (16) and a footrest (17).

7. A lifting platform according to claim 1, Features: A plurality of stabilizing rods (18) are provided between the lifting devices (1), and the stabilizing rods (18) are connected to the lifting devices (1) on the left and right sides by pins.

8. The lifting platform according to claim 1, Features: The limit blocks (19) are fixedly mounted on the upper and lower ends of the support frame (4).

9. The lifting platform according to claim 1, Features: The screw rod (6), the steel wire rope (8) and the fixed pulley (5) are all arranged inside the support frame (4).

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