Electric multilayer lifting platform

Abstract

The invention relates to the technical field of lifting platforms, and discloses an electric multi-layer lifting platform which comprises a base and a plurality of single-layer platforms, two symmetrically-distributed limiting rods are installed on each of the two sides of the base, a top plate is installed at the top ends of the limiting rods, and a transmission box is installed on the top plate; the two sides of the single-layer platform are each provided with two limiting grooves in sliding connection with the corresponding limiting rod. The two ends of the single-layer platform are clamped and fixed through the clamping component, the stability of the single-layer platform during lifting is improved, and when the clamping component completes clamping, the locking component can be automatically separated from the locking groove under the action of the control component and the magnetic component, so that the lifting component conveniently lifts the single-layer platform, and the working efficiency is improved. And after lifting of the single-layer platform is completed, when clamping of the clamping component on the single-layer platform is relieved, the locking component can automatically complete limiting and locking of the single-layer platform, and therefore the single-layer platform needing to be lifted can be rapidly switched, and the overall use efficiency of the lifting platform is improved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting platforms, in particular to an electric multi-layer lifting platform. Background Art

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

[0003] In the prior art, a multi-layer lifting platform is often lifted up by a corresponding lifting mechanism during use to achieve lifting. However, when the existing multi-layer lifting platform is lifted up by the lifting mechanism, it is only lifted up from the bottom of the single-layer platform, and the stability is poor. In addition, after the lifting mechanism completes the lifting operation of the single-layer platform, the lifted single-layer platform cannot be quickly limited and locked, thereby affecting the lifting platform to continue to lift other single-layer platforms, thereby reducing the overall use efficiency of the lifting platform. For this reason, technical personnel in this field have proposed an electric multi-layer lifting platform to solve the problems raised in the above background. Summary of the invention

[0004] The object of the present invention is to provide an electric multi-storey lifting platform to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An electric multi-layer lifting platform comprises a base and a plurality of single-layer platforms, two symmetrically distributed limit rods are installed on both sides of the base, a top plate is installed on the top of the limit rod, a transmission box is installed on the top plate, two limit grooves slidably connected to the limit rods are provided on both sides of the single-layer platform, two symmetrically distributed connecting blocks corresponding to the limit rods are provided on both sides of the bottom of the single-layer platform, the bottoms of the two connecting blocks are connected with U-shaped blocks, the opening of the U-shaped block is far away from the middle of the single-layer platform, and the limit rod is provided with a plurality of equally spaced locking grooves on one side facing the single-layer platform, and further comprises:

[0007] Locking components, which are arranged on both sides of the single-layer platform and can be used to limit and lock the single-layer platform in cooperation with the locking groove;

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

[0009] A mobile platform, on which a clamping component is installed for clamping and fixing the lifting single-layer platform;

[0010] A magnetic component, wherein the magnetic component is arranged 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 drives the control component to pull the locking component to release the limit lock of the single-layer platform;

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

[0012] A lifting component, which is arranged on both sides of the base and the top plate and connected to the moving component, and is used to adjust the height of the moving platform;

[0013] A driving component is arranged in the transmission box and is used for driving the lifting component.

[0014] As a preferred technical solution of the present invention, the locking component includes an inner groove opened in the single-layer platform and close to the limit groove, a locking block cooperating with the locking groove is slidably arranged in the inner groove, a first elastic member connected to the locking block is arranged in the inner groove, and a limit block is arranged on the inner wall of the inner groove.

[0015] As a preferred technical solution of the present invention, the control component includes a sliding cavity opened in the connecting block, a sliding plate is slidably arranged in the sliding cavity, a first transmission wheel is rotatably arranged in the inner groove, a second transmission wheel is rotatably arranged on the top of the connecting block, and a connecting rope is connected to one end of the locking block facing the first elastic member, and the connecting rope is connected to the sliding plate by bypassing the first transmission wheel and the second transmission wheel in turn.

[0016] As a preferred technical solution of the present invention, the clamping component includes a rectangular groove opened in the movable platform, two symmetrically distributed rotating shafts are rotatably arranged in the rectangular groove, the rotating shafts are connected to a Z-shaped arm, and mutually meshing gears are installed at the top ends of the two rotating shafts. Two symmetrically distributed baffles are installed in the rectangular groove, and the Z-shaped arm is connected to the end of the movable platform through a second elastic member.

[0017] As a preferred technical solution of the present invention, a roller is rotatably mounted on one end of the Z-shaped arm away from the rotating shaft.

[0018] As a preferred technical solution of the present invention, the magnetic component includes a permanent magnet installed at the bottom of the skateboard, a conductive slider is provided on the outer wall of one end of the Z-shaped arm close to the rotating shaft, 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 on the end of the Z-shaped arm away from the rotating shaft.

[0019] As a preferred technical solution of the present invention, the lifting component includes two first screws rotatably arranged 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. The first screws are threadedly connected with a lifting plate that is slidably connected to the guide rods.

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

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

[0022] The present invention has the following advantages: when the single-layer platform needs to be lifted or lowered, the lifting component is driven by the driving component to lift or lower, thereby changing the height of the moving platform, so that the clamping component on the moving platform moves to the single-layer platform that needs to be lifted or lowered, and the single-layer platform is 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 the U-shaped block, thereby completing the clamping and fixing of the single-layer platform, and improving the stability of the single-layer platform during lifting or lowering; in addition, after the clamping component enters the U-shaped block to complete the clamping of the single-layer platform, the magnetic component will be started and drive the control component to make the control component pull the locking component so that the locking component is separated from the locking groove of the limit rod, and then the single-layer platform can be smoothly lifted or lowered under the action of the lifting component, and after the single-layer platform is lifted or lowered to a specified height, the clamping component will release the clamping of the single-layer platform, and in 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 with the prior art, the clamping and fixing of the two ends of the single-layer platform are completed by the clamping components, which improves the stability of the single-layer platform during lifting and lowering, and when the clamping components complete the clamping, the locking components will automatically disengage from the locking groove under the action of the control components and the magnetic components, thereby facilitating the lifting and lowering of the single-layer platform by the lifting components, and after the lifting of the single-layer platform is completed, when the clamping components release the clamping of the single-layer platform, the locking components will also automatically complete the limit locking of the single-layer platform, so that the single-layer platform that needs to be lifted and lowered can be quickly converted, thereby improving the overall utilization efficiency of the lifting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a structural schematic diagram of an electric multi-storey lifting platform.

[0024] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

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

[0026] Figure 4 The present invention is an internal cross-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 partial enlarged view of point B in the middle.

[0028] Figure 6 The figure is a schematic diagram of the structure of a moving platform in an electric multi-storey lifting platform.

[0029] Figure 7 The figure is a schematic diagram of the structure of the moving parts in an electric multi-storey lifting platform.

[0030] Figure 8 It is a schematic diagram of the structure of the clamping components in an electric multi-storey lifting platform.

[0031] Fig. 9 The figure is a schematic diagram of the structure of the driving components in an electric multi-storey lifting platform.

[0032] In the figure: 1, base; 2, limit rod; 3, top plate; 4, transmission box; 5, single-layer platform; 6, limit groove; 7, locking groove; 8, locking component; 801, inner groove; 802, locking block; 803, first elastic member; 804, limit block; 9, connecting block; 10, control component; 1001, first transmission wheel; 1002, second transmission wheel; 1003, connecting rope; 1004, sliding cavity; 1005, slide plate; 11, U-shaped block; 12, lifting component; 1201, first screw rod; 1202, guide rod; 1203, lifting plate; 13, moving component; 1301, slide groove; 1302, second screw rod; 1303, moving block; 1304, first driving member; 14, moving platform; 15, clamping member; 1501, rectangular groove; 1502, rotating shaft; 1503, Z-arm; 1504, roller; 1505, baffle; 1506, second elastic member; 1507, gear; 16, magnetic member; 1601, conductive slider; 1602, conductive block; 1603, electromagnet; 1604, permanent magnet; 17, driving member; 1701, transmission wheel; 1702, synchronous belt; 1703, second driving member. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0034] See also Figure 1-Figure 9 , an electric multi-layer lifting platform, comprising a base 1 and a plurality of single-layer platforms 5, two symmetrically distributed limit rods 2 are installed on both sides of the base 1, a top plate 3 is installed on the top of the limit rod 2, a transmission box 4 is installed on the top plate 3, two limit grooves 6 slidably connected to the limit rod 2 are provided on both sides of the single-layer platform 5, two symmetrically distributed connecting blocks 9 corresponding to the limit rod 2 are provided on both sides of the bottom of the single-layer platform 5, and the bottoms of the two connecting blocks 9 are connected with U-shaped blocks 11, the opening of the U-shaped block 11 is far away from the middle of the single-layer platform 5, and the limit rod 2 is provided with a plurality of equally spaced locking grooves 7 on one side of the single-layer platform 5, and also includes:

[0035] The locking components 8 are arranged on both sides of the single-layer platform 5 and can be used to limit and lock the single-layer platform 5 in cooperation with the locking grooves 7;

[0036] a control component 10, wherein the control component 10 is disposed in the connection block 9 and connected to the locking component 8, and is used to pull the locking component 8;

[0037] A moving platform 14, on which a clamping component 15 is mounted, for clamping and fixing the lifting single-layer platform 5;

[0038] The magnetic component 16 is arranged on the clamping component 15. When the clamping component 15 extends into the U-shaped block 11 to complete the clamping of the single-layer platform 5, the magnetic component 16 drives the control component 10 to pull the locking component 8 to release the limit lock of the locking component 8 on the single-layer platform 5;

[0039] A moving component 13, wherein the moving component 13 is connected to the moving platform 14 and is used to adjust the distance between the clamping components 15 on both sides;

[0040] A lifting component 12, which is disposed on both sides of the base 1 and the top plate 3 and is connected to the moving component 13, and is used to adjust the height of the moving platform 14;

[0041] The driving component 17 is disposed in the transmission box 4 and is used for driving the lifting component 12 .

[0042] When the single-layer platform 5 needs to be lifted or lowered, the lifting component 12 is driven to be lifted or lowered by the driving component 17, thereby changing the height of the moving platform 14, so that the clamping component 15 on the moving platform 14 moves to the single-layer platform 5 that needs to be lifted or lowered, and at the same time, the single-layer platform 5 is facing the U-shaped block 11 at the bottom of the connecting block 9, and then the lifting component 12 enters the U-shaped block 11 under the action of the moving component 13 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 when it is lifted or lowered; 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 6 will start and drive the control component 10, so that the control component 10 pulls the locking component 8, so that the locking component 8 disengages from the locking groove 7 of the limit rod 2, thereby releasing the limit lock on the single-layer platform 5, and then the single-layer platform 5 can be smoothly lifted and lowered under the action of the lifting component 12, and after the single-layer platform 5 is lifted to the specified height, the clamping component 15 will release the clamping of the single-layer platform 5. During this process, the control component 10 no longer pulls the locking component 8, and 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 lifting and lowering of the single-layer platform 5.

[0043] In one case of this embodiment, the locking component 8 includes an inner groove 801 opened in the single-layer platform 5 and close to the limit groove 6, and a locking block 802 that cooperates with the locking groove 7 is slidably arranged in the inner groove 801. A first elastic member 803 connected to the locking block 802 is arranged in the inner groove 801. Preferably, the first elastic member 803 is arranged as a spring, and a limit block 804 is arranged on the inner wall of the inner groove 801.

[0044] Under the elastic thrust of the first elastic member 803, the locking block 802 is pushed toward the outside of the inner groove 801, and when the inner groove 801 of the single-layer platform 5 is directly opposite to the locking groove 7 of the limit rod 2, the locking block 802 will be stuck in the locking groove 7 of the limit rod 2, thereby completing the limit locking of the single-layer platform 5, and when the control component 10 pulls the locking block 802, the locking block 802 will move to the limit block 804 in the inner groove 801, and the locking block 802 will exit the locking groove 7 at the same time, and the single-layer platform 5 can be freely raised and lowered.

[0045] In one case of this embodiment, the control component 10 includes a sliding cavity 1004 opened in the connecting block 9, a slide plate 1005 is slidably arranged in the sliding cavity 1004, a first transmission wheel 1001 is rotatably arranged in the inner groove 801, a second transmission wheel 1002 is rotatably arranged on the top of the connecting block 9, and a connecting rope 1003 is connected to one end of the locking block 802 facing the first elastic member 803, and the connecting rope 1003 sequentially passes around the first transmission wheel 1001 and the second transmission wheel 1002 to be connected to the slide 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 start, and the slide plate 1005 will slide down along the slide cavity 1004 by magnetic force until the slide plate 1005 slides to the bottom of the slide cavity 1004. In this process, the first transmission wheel 1001, the second transmission wheel 1002 and the connecting rope 1003 can cooperate to pull the locking block 802 so that the locking block 802 exits the locking groove 7 of the limit rod 2, so that the locking block 802 02 enters the inner groove 801, and when the single-layer platform 5 is lifted to the specified height, the clamping component 15 releases the clamping of the U-shaped block 11, and the magnetic component 16 no longer applies magnetic force to the slide plate 1005. At this time, under the action of the first elastic member 803, the locking block 802 will be subjected to elastic thrust, so that the locking block 802 enters the locking groove 7 of the limit rod 2, and then the single-layer platform 5 can be limited and locked again, and the slide plate 1005 will slide to the top of the sliding cavity 1004 for reset.

[0047] In one case of this embodiment, the clamping component 15 includes a rectangular groove 1501 opened in the movable platform 14, and two symmetrically distributed rotating shafts 1502 are rotatably arranged in the rectangular groove 1501. The rotating shaft 1502 is connected to a Z-shaped arm 1503, and the top ends of the two rotating shafts 1502 are installed with mutually meshing gears 1507 for making the two Z-shaped arms 1503 rotate synchronously. Two symmetrically distributed baffles 1505 are installed in the rectangular groove 1501, and the Z-shaped arm 1503 is connected to the end of the movable platform 14 through a second elastic member 1506. Preferably, the second elastic member 1506 is configured as a spring. In the initial state, under the action of the second elastic member 1506, the Z-shaped arm 1503 is subjected to elastic thrust, so that the two Z-shaped arms 1503 are pressed on the baffle 1505.

[0048] When clamping the single-layer platform 5, the moving platform 14 is driven by the moving component 13 to approach the two ends of the single-layer platform 5, and the front end of the Z-shaped arm 1503 is inserted into the U-shaped block 11. When the front ends of the two Z-shaped arms 1503 are in contact with the inner wall of the U-shaped block 11, the moving platform 14 continues to move, so that the front ends of the two Z-shaped arms 1503 move toward the two ends of the U-shaped block 11, and the Z-shaped arms 1503 rotate around the rotating shaft 1502. At the same time, the angle between the two Z-shaped arms 1503 gradually increases until the inner wall of the Z-shaped arm 1503 is completely in contact with the inner wall of the U-shaped block 11, and the outer wall of the Z-shaped arm 1503 is in contact with the rectangular groove 1501. At this time, the Z-shaped arm 1503 completes the clamping of the U-shaped block 11, that is, completes the clamping of the two ends of the single-layer platform 5, thereby improving the stability when the single-layer platform 5 is lifted or lowered.

[0049] In one case of the present embodiment, a roller 1504 is rotatably installed at one end of the Z-shaped arm 1503 away from the rotating shaft 1502. When the Z-shaped arm 1503 contacts the inner wall of the U-shaped block 11, the roller 1504 contacts the inner wall of the U-shaped block 11 before contacting the inner wall of the U-shaped block 11, so that the friction between the front ends of the two Z-shaped arms 1503 and the U-shaped block 11 can be reduced when they move toward the two ends of the U-shaped block 11.

[0050] In one case of this embodiment, the magnetic component 16 includes a permanent magnet 1604 installed at the bottom of the slide 1005, a conductive slider 1601 is provided on the outer wall of one end of the Z-shaped arm 1503 close to 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 installed on the end of the Z-shaped arm 1503 away from the rotating shaft 1502.

[0051] When the clamping component 15 clamps the U-shaped block 11 of the single-layer platform 5, the front end of the Z-shaped arm 1503 will contact the inner wall of the U-shaped block 11 and move toward the two ends of the U-shaped block 11. During this process, the Z-shaped arm 1503 will rotate around the rotating shaft 1502, so that the conductive slider 1601 of the Z-shaped arm 1503 close to the rotating shaft 1502 will also rotate. When the Z-shaped arm 1503 moves into place to complete the clamping of the U-shaped block 11, the conductive slider 1601 will contact the conductive block 1602, thereby energizing the electromagnet 1603, and the electromagnet 1603 will generate magnetism when it is energized. The magnetic poles of the electromagnet 1603 and the permanent magnet 1604 near the end are opposite, so that the slide plate 1005 can be attracted by magnetic force to slide down along the sliding cavity 1004, and then the locking component 8 can be pulled by the control component 10 to release the lock. The single-layer platform 5 is limited and locked, so that it is convenient for the lifting component 12 to drive the single-layer platform 5 to move up and down; and 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-arms 1503 begin to rotate in opposite directions around the rotating shaft 1502. At the same time, the angle between the two Z-arms 1503 will gradually decrease, so that the conductive slider 1601 of the Z-arm 1503 close to the rotating shaft 1502 is separated from the conductive block 1602, and the electromagnet 1603 is powered off. At this time, under the action of the first elastic member 803, the locking block 802 will extend out of the inner groove 801 and be stuck in the locking groove 7 of the limit rod 2, thereby completing the automatic limit locking of the single-layer platform 5, and under the action of the connecting rope 1003, the slide plate 1005 will move to the uppermost end along the sliding cavity 1004 for reset.

[0052] In one case of this embodiment, the lifting component 12 includes two first screws 1201 rotatably arranged on both sides of the base 1 and the top plate 3, and two symmetrically distributed guide rods 1202 are installed on both sides of the base 1 and the top plate 3. The first screw 1201 is threadedly connected with a lifting plate 1203 that is slidably connected to the guide rod 1202.

[0053] When the single-layer platform 5 needs to be lifted or lowered and the height of the clamping component 15 needs to be adjusted, the two first screw rods 1201 can be driven to rotate simultaneously by the driving component 17, thereby driving the lifting plate 1203 on the first screw rod 1201 to be lifted or lowered along the guide rod 1202.

[0054] In one case of this embodiment, the moving component 13 includes a slide groove 1301 opened in the lifting plate 1203, a second screw 1302 is rotatably arranged in the slide groove 1301, a moving block 1303 which is threadedly connected to the slide groove 1301 and is slidably connected to the second screw 1302, the moving block 1303 is connected to the moving platform 14, and a first driving member 1304 connected to the second screw 1302 is installed on the lifting plate 1203. Preferably, the first driving member 1304 is configured as a servo motor.

[0055] During the 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 started to drive the second screw 1302 to rotate, thereby driving 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 case of this embodiment, the driving component 17 includes a transmission wheel 1701 installed on the top of the first screw 1201, and the transmission wheel 1701 is located in the transmission box 4, the two transmission wheels 1701 are connected by a synchronous belt 1702, and a second driving member 1703 connected to one of the transmission wheels 1701 is installed in the transmission box 4. Preferably, the second driving member 1703 is configured as a servo motor.

[0057] When it is necessary to drive the lifting component 12 to lift, start the second driving component 1703 to drive the transmission wheel 1701 connected thereto to rotate, and cooperate with the synchronous belt 1702 and the other transmission wheel 1701 to rotate, thereby driving the other transmission wheel 1701 to rotate, so that the two first screws 1201 can be driven to rotate at the same time, so that the lifting plates 1203 on the two first screws 1201 are lifted and lowered synchronously.

[0058] The present invention completes the clamping and fixing of the two ends of the single-layer platform 5 through the clamping component 15, thereby improving the stability of the single-layer platform 5 during lifting and lowering, and when the clamping component 15 completes the clamping, under the action of the control component 10 and the magnetic component 16, the locking component 8 will automatically disengage from the locking groove 7, thereby facilitating the lifting and lowering of the single-layer platform 5 by the lifting component 12, and after the lifting and lowering of the single-layer platform 5 is completed, when the clamping component 15 releases the clamping of the single-layer platform 5, the locking component 8 will also automatically complete the limit locking of the single-layer platform 5, thereby quickly converting the single-layer platform 5 that needs to be lifted and lowered, thereby improving the overall use efficiency of the lifting platform.

[0059] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0060] 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. An electric multi-layer lifting platform, comprising a base and a plurality of single-layer platforms, characterized in that: Two symmetrically distributed limit rods are installed on both sides of the base, a top plate is installed on the top of the limit rod, and a transmission box is installed on the top plate. Two limit grooves slidably connected to the limit rods are provided on both sides of the single-layer platform, and two symmetrically distributed connecting blocks corresponding to the limit rods are provided on both sides of the bottom of the single-layer platform. The bottoms of the two connecting blocks are connected with U-shaped blocks, and the openings of the U-shaped blocks are far away from the middle of the single-layer platform. The limit rod is provided with a plurality of equally spaced locking grooves on one side facing the single-layer platform, and further includes: Locking components, which are arranged on both sides of the single-layer platform and can be used to limit and lock the single-layer platform in cooperation with the locking groove; The locking component comprises an inner groove which is provided in the single-layer platform and is close to the limiting groove, a locking block which cooperates with the locking groove is slidably arranged in the inner groove, a first elastic member connected with the locking block is arranged in the inner groove, and a limiting block is arranged on the inner wall of the inner groove; A control component, which is disposed in the connection block and connected to the locking component and is used to pull the locking component; The control component comprises a sliding cavity provided in the connection block, a sliding plate is slidably arranged in the sliding cavity, a first transmission wheel is rotatably arranged in the inner groove, a second transmission wheel is rotatably arranged on the top of the connection block, a connecting rope is connected to one end of the locking block facing the first elastic member, and the connecting rope is connected to the sliding plate by passing through the first transmission wheel and the second transmission wheel in sequence; A mobile platform, on which a clamping component is installed for clamping and fixing the lifting single-layer platform; A magnetic component, wherein the magnetic component is arranged 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 drives the control component to pull the locking component to release the limit lock of the single-layer platform; A moving component, which is connected to the moving platform and is used to adjust the distance between the clamping components on both sides; A lifting component, which is arranged on both sides of the base and the top plate and connected to the moving component, and is used to adjust the height of the moving platform; A driving component is arranged in the transmission box and is used for driving the lifting component.

2. The electric multi-storey lifting platform according to claim 1, characterized in that: The clamping component includes a rectangular groove opened in the movable platform, in which two symmetrically distributed rotating shafts are rotatably arranged, the rotating shafts are connected with Z-shaped arms, and the top ends of the two rotating shafts are equipped with mutually meshing gears, and two symmetrically distributed baffles are installed in the rectangular groove, and the Z-shaped arm is connected to the end of the movable platform through a second elastic member.

3. The electric multi-storey lifting platform according to claim 2, characterized in that: A roller is rotatably mounted on one end of the Z-shaped arm away from the rotating shaft.

4. The electric multi-storey lifting platform according to claim 2, characterized in that: The magnetic component includes a permanent magnet installed at the bottom of the slide, a conductive slider is provided on the outer wall of one end of the Z-shaped arm close to the rotating shaft, 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 on the end of the Z-shaped arm away from the rotating shaft.

5. The electric multi-storey lifting platform according to claim 1, characterized in that: The lifting component includes two first screw rods rotatably arranged 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, and the first screw rods are threadedly connected with a lifting plate slidably connected to the guide rods.

6. The electric multi-storey lifting platform according to claim 5, characterized in that: The moving component includes a slide groove opened in the lifting plate, a second screw is rotatably arranged in the slide groove, a moving block slidably connected to the slide groove is threadedly connected to the second screw, the moving block is connected to the moving platform, and a first driving member connected to the second screw is installed on the lifting plate.

7. The electric multi-storey lifting platform according to claim 5, characterized in that: The driving component comprises a transmission wheel installed on the top of the first screw rod, and the transmission wheel is located in a transmission box. The two transmission wheels are connected by a synchronous belt transmission, and a second driving member connected to one of the transmission wheels is installed in the transmission box.

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