An electric multi-level lifting platform

Abstract

This invention relates to the field of lifting platform technology and discloses an electric multi-layer lifting platform, including a base and multiple single-layer platforms. Two symmetrically distributed limiting rods are installed on both sides of the base, with a top plate installed at the top of each limiting rod and a transmission box installed on the top plate. Two limiting grooves that slidably connect with the limiting rods are provided on both sides of each single-layer platform. This invention uses a clamping component to clamp and fix both ends of the single-layer platform, improving the stability of the single-layer platform during lifting. Furthermore, when the clamping component completes clamping, a locking component automatically disengages from the locking groove under the action of a control component and a magnetic component, facilitating the lifting component's lifting of the single-layer platform. After the single-layer platform is lifted, when the clamping component releases its grip, the locking component automatically locks the single-layer platform, allowing for quick switching between the required lifting layers and thus improving the overall efficiency of the lifting platform.

Description

Technical Field

[0001] This invention relates to the field of lifting platform technology, specifically an electric multi-level lifting platform. Background Technology

[0002] In order to make full use of limited space to store more goods, people have set up single-layer storage platforms to be multi-layered, thereby increasing the storage capacity of a single area, such as multi-layer lifting platforms.

[0003] In the prior art, multi-level lifting platforms often use corresponding lifting mechanisms to lift single-level platforms during use. However, existing multi-level lifting platforms only lift from the bottom of the single-level platform when using the lifting mechanism, resulting in poor stability. In addition, after the lifting mechanism completes the lifting operation of the single-level platform, it cannot quickly lock the lifted single-level platform, which affects the lifting platform's ability to continue lifting other single-level platforms, thereby reducing the overall efficiency of the lifting platform. To address these issues, those skilled in the art have proposed an electric multi-level lifting platform to solve the problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide an electric multi-level lifting platform to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An electric multi-level lifting platform includes a base and multiple single-level platforms. Two symmetrically distributed limiting rods are installed on both sides of the base. A top plate is installed at the top of each limiting rod, and a transmission box is installed on the top plate. Two limiting grooves that slidably connect with the limiting rods are provided on both sides of each single-level platform. Two symmetrically distributed connecting blocks corresponding to the limiting rods are provided on both sides of the bottom of each single-level platform. A U-shaped block is connected to the bottom of each connecting block, with the opening of the U-shaped block away from the center of the single-level platform. Multiple locking grooves are evenly spaced on the side of the limiting rod facing the single-level platform. The platform also includes:

[0007] The locking components are located on both sides of the single-layer platform and can be used to limit and lock the single-layer platform in conjunction with the locking groove.

[0008] A control component, which is disposed within the connecting block and connected to the locking component, is used to pull the locking component;

[0009] A mobile platform, on which clamping components are installed, is used to clamp and fix the lifting single-layer platform.

[0010] A magnetic component is provided on the clamping component. When the clamping component extends into the U-shaped block to complete the clamping of the single-layer platform, the magnetic component will drive the control component to pull the locking component, thereby releasing the locking component from limiting the locking of the single-layer platform.

[0011] A movable component, which is connected to a movable platform, is used to adjust the distance between the clamping components on both sides;

[0012] A lifting component is provided on both sides of the base and the top plate and is connected to the moving component for adjusting the height of the moving platform;

[0013] A drive component, which is disposed inside the transmission box, is used to drive the lifting component.

[0014] As a preferred embodiment of the present invention, the locking component includes an inner groove formed within a single-layer platform and close to a limiting groove, a locking block that slidably engages with a locking groove is provided within the inner groove, a first elastic element connected to the locking block is provided within the inner groove, and a limiting block is provided on the inner wall of the inner groove.

[0015] As a preferred embodiment of the present invention, the control component includes a sliding cavity formed in the connecting block, a sliding plate slidably disposed in the sliding cavity, a first transmission wheel rotatably disposed in the inner groove, a second transmission wheel rotatably disposed on the top of the connecting block, and a connecting rope connected to one end of the locking block facing the first elastic member, the connecting rope passing around the first transmission wheel and the second transmission wheel in sequence and connecting to the sliding plate.

[0016] As a preferred embodiment of the present invention, the clamping component includes a rectangular groove formed in a moving stage, two symmetrically distributed rotating shafts are rotatably arranged in the rectangular groove, the rotating shafts are connected to Z-shaped arms, the top ends of the two rotating shafts are fitted with meshing gears, two symmetrically distributed baffles are installed in the rectangular groove, and the Z-shaped arms are connected to the end of the moving stage through a second elastic element.

[0017] As a preferred embodiment of the present invention, a roller is rotatably mounted on the end of the Z-arm away from the pivot.

[0018] As a preferred embodiment of the present invention, the magnetic component includes a permanent magnet installed at the bottom of the slide plate, a conductive slider is provided on the outer wall of the Z-shaped arm near the pivot, two symmetrically distributed conductive blocks are installed in the rectangular groove and the conductive blocks are in contact with the outer wall of the Z-shaped arm, and an electromagnet is installed at the end of the Z-shaped arm away from the pivot.

[0019] As a preferred embodiment of the present invention, the lifting component includes two first screws rotatably disposed on both sides of the base and the top plate, and two symmetrically distributed guide rods are installed on both sides of the base and the top plate. A lifting plate that is slidably connected to the guide rods is threaded onto the first screws.

[0020] As a preferred embodiment of the present invention, the moving component includes a slide groove formed in the lifting plate, a second screw is rotatably disposed in the slide groove, a moving block is threadedly connected to the second screw and slidably connected to the slide groove, the moving block is connected to the moving platform, and a first driving component connected to the second screw is installed on the lifting plate.

[0021] As a preferred embodiment of the present invention, the driving component includes a transmission wheel mounted on the top of the first screw, and the transmission wheel is located inside the transmission box. The two transmission wheels are connected by a synchronous belt, and a second driving component connected to one of the transmission wheels is installed inside the transmission box.

[0022] The present invention has the following advantages: When a single-layer platform needs to be raised or lowered, the present invention drives the lifting component to move up and down through a driving component, thereby changing the height of the moving platform. This allows the clamping component on the moving platform to move to the single-layer platform that needs to be raised or lowered, with the single-layer platform directly facing the U-shaped block at the bottom of the connecting block. Then, under the action of the moving component, the lifting component enters the U-shaped block and clamps it, thus completing the clamping and fixing of the single-layer platform and improving the stability of the single-layer platform during raising and lowering. In addition, after the clamping component enters the U-shaped block and completes the clamping of the single-layer platform, the magnetic component is activated and drives the control component, causing the control component to pull the locking component, causing the locking component to disengage from the locking groove of the limit rod. Then, under the action of the lifting component, the single-layer platform can be raised and lowered smoothly. After the single-layer platform is raised or lowered to the specified height, the clamping component will release the clamping of the single-layer platform. During this process, the control component no longer pulls the locking component, and at this time, the locking component will automatically enter the locking groove of the limit rod to complete the limit locking of the single-layer platform. Compared to existing technologies, the clamping component secures both ends of the single-layer platform, improving stability during lifting. Furthermore, when the clamping component completes clamping, the locking component automatically disengages from the locking slot under the action of the control and magnetic components, facilitating the lifting of the single-layer platform. After lifting, when the clamping component releases its grip, the locking component automatically locks the single-layer platform to its limit position, allowing for rapid switching between different single-layer platforms and thus improving the overall efficiency of the lifting platform. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an electric multi-level lifting platform.

[0024] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0025] Figure 3 This is a structural schematic diagram of a single-layer platform in an electric multi-layer lifting platform.

[0026] Figure 4 This is an internal sectional view of the connection between a single-layer platform and a limit rod in an electric multi-layer lifting platform.

[0027] Figure 5 for Figure 4 A magnified view of a section at point B in the middle.

[0028] Figure 6 This is a schematic diagram of the moving platform in an electric multi-level lifting platform.

[0029] Figure 7 This is a schematic diagram of the moving parts in an electric multi-level lifting platform.

[0030] Figure 8 This is a schematic diagram of the clamping component in an electric multi-level lifting platform.

[0031] Figure 9 This is a schematic diagram of the drive component in an electric multi-level lifting platform.

[0032] In the diagram: 1. Base; 2. Limiting rod; 3. Top plate; 4. Transmission box; 5. Single-layer platform; 6. Limiting groove; 7. Locking groove; 8. Locking component; 801. Inner groove; 802. Locking block; 803. First elastic element; 804. Limiting block; 9. Connecting block; 10. Control component; 1001. First transmission wheel; 1002. Second transmission wheel; 1003. Connecting rope; 1004. Slide cavity; 1005. Slide plate; 11. U-shaped block; 12. Lifting component; 1201. First screw; 1202. Guide rod; 1203. Lifting plate; 13. Moving component; 1301, Slide groove; 1302, Second screw; 1303, Moving block; 1304, First driving component; 14, Moving stage; 15, Clamping component; 1501, Rectangular groove; 1502, Rotating shaft; 1503, Z-arm; 1504, Roller; 1505, Baffle; 1506, Second elastic component; 1507, Gear; 16, Magnetic component; 1601, Conductive slider; 1602, Conductive block; 1603, Electromagnet; 1604, Permanent magnet; 17, Driving component; 1701, Transmission wheel; 1702, Synchronous belt; 1703, Second driving component. Detailed Implementation

[0033] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0034] Please see Figures 1-9 An electric multi-level lifting platform includes a base 1 and multiple single-level platforms 5. Two symmetrically distributed limiting rods 2 are installed on both sides of the base 1. A top plate 3 is installed at the top of each limiting rod 2, and a transmission box 4 is installed on the top plate 3. Two limiting grooves 6 are provided on both sides of each single-level platform 5, which are slidably connected to the limiting rods 2. Two symmetrically distributed connecting blocks 9 are provided on both sides of the bottom of each single-level platform 5, corresponding to the limiting rods 2. A U-shaped block 11 is connected to the bottom of each connecting block 9. The opening of the U-shaped block 11 is away from the center of the single-level platform 5. Multiple equally spaced locking grooves 7 are provided on the side of the limiting rods 2 facing the single-level platform 5. The platform also includes:

[0035] Locking component 8 is disposed on both sides of the single-layer platform 5 and can be locked in place by cooperating with locking groove 7 to limit the single-layer platform 5.

[0036] A control component 10 is disposed within the connecting block 9 and connected to the locking component 8, and is used to pull the locking component 8.

[0037] The movable platform 14 is equipped with a clamping component 15 for clamping and fixing the lifting single-layer platform 5.

[0038] Magnetic component 16 is disposed on clamping component 15. When clamping component 15 extends into U-shaped block 11 to complete clamping of single-layer platform 5, magnetic component 16 will drive control component 10 to pull locking component 8, thereby releasing locking component 8 from limiting and locking single-layer platform 5.

[0039] The movable component 13 is connected to the movable stage 14 and is used to adjust the distance between the clamping components 15 on both sides.

[0040] Lifting component 12 is disposed on both sides of the base 1 and the top plate 3 and is connected to the moving component 13 for adjusting the height of the moving platform 14;

[0041] The drive component 17 is disposed inside the transmission box 4 and is used to drive the lifting component 12.

[0042] When the single-layer platform 5 needs to be raised or lowered, the lifting component 12 is driven by the driving component 17 to raise or lower, thereby changing the height of the moving platform 14. This causes the clamping component 15 on the moving platform 14 to move to the single-layer platform 5 that needs to be raised or lowered. At the same time, the single-layer platform 5 is directly facing the U-shaped block 11 at the bottom of the connecting block 9. Then, under the action of the moving component 13, the lifting component 12 enters the U-shaped block 11 and clamps the U-shaped block 11, thereby completing the clamping and fixing of the single-layer platform 5 and improving the stability of the single-layer platform 5 during raising or lowering. In addition, after the clamping component 15 enters the U-shaped block 11 and completes the clamping of the single-layer platform 5, the magnetic component 1... The system will start and drive the control component 10, causing the control component 10 to pull the locking component 8, causing the locking component 8 to disengage from the locking groove 7 of the limit rod 2, thereby releasing the limit lock on the single-layer platform 5. Then, under the action of the lifting component 12, the single-layer platform 5 can be smoothly raised and lowered. After the single-layer platform 5 is raised and lowered to the specified height, the clamping component 15 will release the clamp on the single-layer platform 5. During this process, the control component 10 will no longer pull the locking component 8. At this time, the locking component 8 will automatically enter the locking groove 7 of the limit rod 2 to complete the limit lock on the single-layer platform 5, thereby completing the raising and lowering of the single-layer platform 5.

[0043] In one embodiment, the locking component 8 includes an inner groove 801 formed within a single-layer platform 5 and close to the limiting groove 6. A locking block 802 that cooperates with the locking groove 7 is slidably disposed within the inner groove 801. A first elastic element 803 connected to the locking block 802 is disposed within the inner groove 801. Preferably, the first elastic element 803 is a spring. A limiting block 804 is disposed on the inner wall of the inner groove 801.

[0044] Under the elastic thrust of the first elastic element 803, the locking block 802 is pushed to move outward of the inner groove 801. When the inner groove 801 of the single-layer platform 5 is aligned with the locking groove 7 of the limiting rod 2, the locking block 802 will be inserted into the locking groove 7 of the limiting rod 2, thereby completing the limiting and locking of the single-layer platform 5. When the control component 10 pulls the locking block 802, the locking block 802 will move to the limiting block 804 in the inner groove 801, and at the same time, the locking block 802 will exit the locking groove 7. At this time, the single-layer platform 5 can be raised and lowered freely.

[0045] In one embodiment, the control component 10 includes a sliding cavity 1004 formed in the connecting block 9, a sliding plate 1005 slidably disposed in the sliding cavity 1004, a first transmission wheel 1001 rotatably disposed in the inner groove 801, a second transmission wheel 1002 rotatably disposed on the top of the connecting block 9, and a connecting rope 1003 connected to one end of the locking block 802 facing the first elastic member 803. The connecting rope 1003 passes around the first transmission wheel 1001 and the second transmission wheel 1002 in sequence and connects to the sliding plate 1005.

[0046] After the clamping component 15 enters the U-shaped block 11 and completes the clamping and fixing of the single-layer platform 5, the magnetic component 16 will be activated, driving the slide plate 1005 to slide down along the slide cavity 1004 through magnetic force until the slide plate 1005 slides to the bottom of the slide cavity 1004. During this process, through the cooperation of the first transmission wheel 1001, the second transmission wheel 1002 and the connecting rope 1003, the locking block 802 can be pulled, causing the locking block 802 to disengage from the locking groove 7 of the limit rod 2, so that the locking block 802... 02 enters the inner groove 801. When the single-layer platform 5 is raised and lowered to the specified height, the clamping component 15 releases the clamp on the U-shaped block 11. The magnetic component 16 no longer applies magnetic force to the slide plate 1005. At this time, under the action of the first elastic component 803, the locking block 802 will be subjected to elastic thrust, so that the locking block 802 enters the locking groove 7 of the limiting rod 2, thereby re-limiting and locking the single-layer platform 5. At the same time, the slide plate 1005 will slide to the top of the slide cavity 1004 for reset.

[0047] In one embodiment, the clamping component 15 includes a rectangular groove 1501 formed in the moving stage 14. Two symmetrically distributed rotating shafts 1502 are rotatably disposed in the rectangular groove 1501. Z-shaped arms 1503 are connected to the rotating shafts 1502. The top ends of the two rotating shafts 1502 are equipped with meshing gears 1507 to enable the two Z-shaped arms 1503 to rotate synchronously. Two symmetrically distributed baffles 1505 are installed in the rectangular groove 1501. The Z-shaped arms 1503 are connected to the ends of the moving stage 14 through a second elastic member 1506. Preferably, the second elastic member 1506 is a spring. In the initial state, under the action of the second elastic member 1506, the Z-shaped arms 1503 are subjected to elastic thrust, so that the two Z-shaped arms 1503 are pressed on the baffles 1505.

[0048] When clamping the single-layer platform 5, the moving part 13 drives the moving stage 14 to approach both ends of the single-layer platform 5, causing the front ends of the Z-shaped arms 1503 to engage with the U-shaped blocks 11. When the front ends of the two Z-shaped arms 1503 are in contact with the inner wall of the U-shaped blocks 11, the moving stage 14 continues to move, causing the front ends of the two Z-shaped arms 1503 to move towards both ends of the U-shaped blocks 11 and rotate around the pivot 1502. At the same time, the included angle of the two Z-shaped arms 1503 gradually increases until the inner wall of the Z-shaped arms 1503 is completely in contact with the inner wall of the U-shaped blocks 11, and the outer wall of the Z-shaped arms 1503 is in contact with the rectangular groove 1501. At this time, the Z-shaped arms 1503 complete the clamping of the U-shaped blocks 11, that is, complete the clamping of both ends of the single-layer platform 5, thereby improving the stability when raising and lowering the single-layer platform 5.

[0049] In one embodiment, a roller 1504 is rotatably mounted on the end of the Z-arm 1503 away from the pivot 1502. When the Z-arm 1503 contacts the inner wall of the U-block 11, the roller 1504 will contact the inner wall of the U-block 11 first. This reduces the friction between the front ends of the two Z-arms 1503 and the U-block 11 when they move toward the two ends of the U-block 11.

[0050] In one embodiment, the magnetic component 16 includes a permanent magnet 1604 mounted on the bottom of the slide plate 1005, a conductive slider 1601 is provided on the outer wall of the Z-shaped arm 1503 near the rotating shaft 1502, two symmetrically distributed conductive blocks 1602 are installed in the rectangular groove 1501, and the conductive blocks 1602 are in contact with the outer wall of the Z-shaped arm 1503, and an electromagnet 1603 is mounted on the end of the Z-shaped arm 1503 away from the rotating shaft 1502.

[0051] During the clamping process of the clamping component 15 clamping the U-shaped block 11 of the single-layer platform 5, the front end of the Z-shaped arm 1503 contacts the inner wall of the U-shaped block 11 and moves towards both ends of the U-shaped block 11. During this process, the Z-shaped arm 1503 rotates around the pivot 1502, causing the conductive slider 1601 at the end of the Z-shaped arm 1503 near the pivot 1502 to also rotate. After the Z-shaped arm 1503 moves into position and completes the clamping of the U-shaped block 11, the conductive slider 1601 contacts the conductive block 1602, thereby energizing the electromagnet 1603. The energized electromagnet 1603 generates magnetism. The magnetic poles of the electromagnet 1603 and the permanent magnet 1604 are opposite at their near ends, so the slide plate 1005 can be attracted to slide down the slide cavity 1004 by magnetic force. Then, the locking component 8 can be pulled by the control component 10 to release the lock. The single-layer platform 5 is locked to facilitate the lifting component 12 to lift the single-layer platform 5. When the single-layer platform 5 is lifted to the specified height, the clamping component 15 will begin to release the lock on the U-shaped block 11. During this process, the two Z-shaped arms 1503 begin to rotate in opposite directions around the rotating shaft 1502. At the same time, the included angle between the two Z-shaped arms 1503 will gradually decrease, causing the conductive slider 1601 at the end of the Z-shaped arm 1503 near the rotating shaft 1502 to separate from the conductive block 1602. The electromagnet 1603 is de-energized. At this time, under the action of the first elastic element 803, the locking block 802 will extend out of the inner groove 801 and be inserted into the locking groove 7 of the limiting rod 2, thereby completing the automatic limit locking of the single-layer platform 5. Under the action of the connecting rope 1003, the slide plate 1005 will move along the slide cavity 1004 to the uppermost end for reset.

[0052] In one embodiment, the lifting component 12 includes two first screws 1201 rotatably disposed on both sides of the base 1 and the top plate 3. Two symmetrically distributed guide rods 1202 are installed on both sides of the base 1 and the top plate 3. A lifting plate 1203 is threadedly connected to the first screws 1201 and slidably connected to the guide rods 1202.

[0053] When it is necessary to raise or lower the single-layer platform 5 and adjust the height of the clamping component 15, the two first screws 1201 can be driven to rotate simultaneously by the driving component 17, thereby driving the lifting plate 1203 on the first screw 1201 to rise or fall along the guide rod 1202.

[0054] In one embodiment, the moving component 13 includes a slide groove 1301 formed in the lifting plate 1203, a second screw 1302 rotatably disposed in the slide groove 1301, a moving block 1303 threadedly connected to the second screw 1302 and slidably connected to the slide groove 1301, the moving block 1303 being connected to the moving platform 14, and a first driving member 1304 connected to the second screw 1302 mounted on the lifting plate 1203. Preferably, the first driving member 1304 is a servo motor.

[0055] During the clamping process of the clamping component 15 clamping the U-shaped block 11 at the bottom of the single-layer platform 5, the first driving component 1304 is activated, driving the second screw 1302 to rotate, which in turn drives the moving block 1303 on the second screw 1302 to move along the sliding cavity 1004 toward the U-shaped block 11 at the bottom of the single-layer platform 5, so that the clamping component 15 can gradually approach the U-shaped block 11 and complete the clamping of the single-layer platform 5.

[0056] In one embodiment, the drive component 17 includes a drive wheel 1701 mounted on the top of the first screw 1201, and the drive wheel 1701 is located inside the transmission box 4. The two drive wheels 1701 are connected by a synchronous belt 1702. The transmission box 4 is equipped with a second drive component 1703 connected to one of the drive wheels 1701. Preferably, the second drive component 1703 is a servo motor.

[0057] When the lifting component 12 needs to be driven to lift, the second driving component 1703 is activated, which drives the transmission wheel 1701 connected to it to rotate. This, in conjunction with the synchronous belt 1702 and another transmission wheel 1701, drives the other transmission wheel 1701 to rotate, thereby simultaneously driving the two first screws 1201 to rotate, so that the lifting plates 1203 on the two first screws 1201 can lift and lower synchronously.

[0058] This invention uses clamping component 15 to clamp and fix both ends of the single-layer platform 5, improving the stability of the single-layer platform 5 during lifting and lowering. When clamping component 15 completes clamping, locking component 8 automatically disengages from locking slot 7 under the action of control component 10 and magnetic component 16, thus facilitating the lifting component 12 to lift and lower the single-layer platform 5. After the single-layer platform 5 is lifted and lowered, when clamping component 15 releases clamping from the single-layer platform 5, locking component 8 will automatically complete the limit locking of the single-layer platform 5, thereby enabling quick switching of the single-layer platform 5 that needs to be lifted and lowered, and thus improving the overall efficiency of the lifting platform.

[0059] 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 invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electric multi-level lifting platform, comprising a base and multiple single-level platforms, characterized in that, The base has two symmetrically distributed limiting rods installed on both sides. A top plate is installed on the top of each limiting rod, and a transmission box is installed on the top plate. Two limiting grooves that slide and connect with the limiting rods are opened on both sides of the single-layer platform. Two symmetrically distributed connecting blocks corresponding to the limiting rods are provided on both sides of the bottom of the single-layer platform. A U-shaped block is connected to the bottom of each connecting block, with the opening of the U-shaped block away from the center of the single-layer platform. Multiple locking grooves are evenly spaced on the side of the limiting rod facing the single-layer platform. The platform also includes: The locking components are located on both sides of the single-layer platform and can be used to limit and lock the single-layer platform in conjunction with the locking groove. The locking component includes an inner groove formed within a single-layer platform and close to a limiting groove. A locking block that slidably engages with the locking groove is disposed within the inner groove. A first elastic element connected to the locking block is disposed within the inner groove. A limiting block is disposed on the inner wall of the inner groove. A control component, which is disposed within the connecting block and connected to the locking component, is used to pull the locking component; The control component includes a sliding cavity formed in the connecting block, a sliding plate slidably disposed in the sliding cavity, a first conveying wheel rotatably disposed in the inner groove, a second conveying wheel rotatably disposed on the top of the connecting block, and a connecting rope connected to the end of the locking block facing the first elastic member, the connecting rope passing around the first conveying wheel and the second conveying wheel in sequence and connecting to the sliding plate. A mobile platform, on which clamping components are installed, is used to clamp and fix the lifting single-layer platform. A magnetic component is provided on the clamping component. When the clamping component extends into the U-shaped block to complete the clamping of the single-layer platform, the magnetic component will drive the control component to pull the locking component, thereby releasing the locking component from limiting the locking of the single-layer platform. A movable component, which is connected to a movable platform, is used to adjust the distance between the clamping components on both sides; A lifting component is provided on both sides of the base and the top plate and is connected to the moving component for adjusting the height of the moving platform; A drive component, which is disposed inside the transmission box, is used to drive the lifting component.

2. The electric multi-level lifting platform according to claim 1, characterized in that, The clamping component includes a rectangular slot formed in the moving stage. Two symmetrically distributed rotating shafts are rotatably arranged in the rectangular slot. The rotating shafts are connected to Z-shaped arms. The top ends of the two rotating shafts are equipped with meshing gears. Two symmetrically distributed baffles are installed in the rectangular slot. The Z-shaped arms are connected to the end of the moving stage through a second elastic element.

3. The electric multi-level lifting platform according to claim 2, characterized in that, The Z-arm is rotatably mounted with a roller at the end away from the pivot.

4. The electric multi-level lifting platform according to claim 2, characterized in that, The magnetic component includes a permanent magnet installed at the bottom of the slide plate, a conductive slider is provided on the outer wall of the Z-arm near the pivot, two symmetrically distributed conductive blocks are installed in the rectangular groove and the conductive blocks are in contact with the outer wall of the Z-arm, and an electromagnet is installed at the end of the Z-arm away from the pivot.

5. The electric multi-level lifting platform according to claim 1, characterized in that, The lifting component includes two first screws rotatably disposed on both sides of the base and the top plate. Two symmetrically distributed guide rods are installed on both sides of the base and the top plate. A lifting plate that is slidably connected to the guide rods is threaded onto the first screws.

6. The electric multi-level lifting platform according to claim 5, characterized in that, The moving component includes a slide groove formed in the lifting plate, a second screw rotatably disposed in the slide groove, a moving block threadedly connected to the second screw and slidably connected to the slide groove, the moving block being connected to the moving platform, and a first driving component connected to the second screw being mounted on the lifting plate.

7. An electric multi-level lifting platform according to claim 5, characterized in that, The driving component includes a transmission wheel mounted on the top of the first screw, and the transmission wheel is located inside the transmission box. The two transmission wheels are connected by a synchronous belt. A second driving component connected to one of the transmission wheels is installed inside the transmission box.

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