Continuous lifting equipment
By designing a continuous lifting device and utilizing the parallel and spaced load-bearing components of the inner and outer chains, the state of the load-bearing surface can be switched, solving the time and energy consumption problems of traditional lifting devices when returning unloaded, thus improving transportation efficiency and reducing costs.
Patent Information
- Application Number
- CN202423187383.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Traditional reciprocating lifting equipment needs to return to the starting floor empty when the goods are transported in the same direction, which leads to wasted time and increased energy consumption, especially when the distance between floors is large.
Design a continuous lifting device that uses parallel and spaced inner and outer chains to achieve continuous switching between vertical and horizontal states of the bearing surface. Combine multiple bearing components for empty return and cargo transportation. Utilize sprocket sets and guide rails to provide stable support, ensuring the continuity and efficiency of the transportation process.
It enables continuous transportation of goods, avoids equipment idling, improves transportation efficiency, reduces transportation costs, and reduces energy consumption.
Smart Images
Figure CN223496076U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical technology and relates to a continuous lifting device. Background Technology
[0002] In modern logistics and warehousing, with the increasing demand for goods to frequently move between different floors, lifting equipment has become an indispensable transportation tool. These devices include, but are not limited to, freight elevators and scissor lifts, which achieve efficient transfer of goods between floors of different heights through vertical movement. However, in existing technologies, when the direction of goods transportation remains consistent—that is, all goods need to be transported from lower floors to higher floors or vice versa—traditional reciprocating lifting equipment faces a significant problem: during a complete upward or downward transportation cycle, after completing one goods handling operation, the equipment typically needs to return empty to the starting floor for the next loading; this process is known as "air transport."
[0003] Air freight not only directly wastes time and increases the total cycle time of cargo handling, but also leads to unnecessary energy consumption because the equipment still consumes energy when running under no-load conditions. This problem is particularly prominent in scenarios with large distances between floors, as the time and energy required for air freight increase with the distance between floors. Summary of the Invention
[0004] This utility model proposes a continuous lifting device to address the problems existing in the prior art, aiming to overcome the low efficiency of existing lifting devices.
[0005] This utility model is implemented as follows:
[0006] A continuous lifting device includes a frame, on both sides of which are provided symmetrical sprocket sets and chain sets that cooperate with the sprocket sets. A load-bearing component is fixed on the chain set, and the load-bearing component includes a transport chain and a plurality of load-bearing bars fixed on the transport chain.
[0007] The chain assembly includes an inner chain and an outer chain, and a first end of the load-bearing component is connected to one of the inner chain and the outer chain, and a second end of the load-bearing component is connected to the other.
[0008] The inner chain has a first vertical unloaded section and a first load-bearing section, and the outer chain has a second vertical unloaded section and a second load-bearing section. The first vertical unloaded section and the second vertical unloaded section are arranged side by side, so that the load-bearing surface is vertical when the load-bearing component is on the first vertical unloaded section and the second vertical unloaded section. The first load-bearing section and the second load-bearing section are distributed at intervals, so that the load-bearing surface is horizontal when the load-bearing component is on the first load-bearing section and the second load-bearing section.
[0009] When the load-bearing assembly is on the first and second vertical unloaded sections, the load-bearing surface remains vertical because these two chain segments are parallel, allowing for convenient unloaded lifting and lowering operations. When the load-bearing assembly enters the first and second load-bearing sections, the load-bearing surface becomes horizontal because these two chain segments are spaced apart. The first and second load-bearing sections then move the load-bearing assembly up and down, placing the goods to be transported on it, thus achieving the purpose of transporting goods up and down. Through the continuous movement of the sprocket and chain groups, the load-bearing assembly can continuously switch between vertical and horizontal states. By combining multiple load-bearing assemblies, some load-bearing assemblies can return to their unloaded positions while others transport goods, achieving continuous transport of goods. Because the load-bearing assembly consists of multiple load-bearing bars fixed to the transport chain, the load-bearing assembly can deform, facilitating the transition between horizontal and vertical states.
[0010] Preferably, the inner chain has a first transverse unloaded section and a first transition section, and the first vertical unloaded section, the first transverse unloaded section, the first transition section and the first load-bearing section are connected in sequence;
[0011] The outer chain has a second horizontal unloaded section and a second conversion section, and the second vertical unloaded section, the second horizontal unloaded section, the second load-bearing section and the second conversion section are connected in sequence.
[0012] Preferably, the frame is equipped with guide rails, and both the first and second load-bearing sections are located within the guide rails. The guide rails provide stable support for the load-bearing components during vertical transport, preventing damage to goods or safety accidents caused by swaying or tilting. The design of the guide rails allows the load-bearing components to move accurately along a predetermined path, avoiding transport errors or equipment malfunctions caused by path deviations.
[0013] Preferably, the first end of the carrying component is provided with a first connecting bar fixed to the transport chain. The first connecting bar has first rotating seats at both ends, and each rotating seat has a rotatable first connecting member. Each connecting member has a connecting shaft that connects to the inner chain. The first end of the carrying component is fixed to the transport chain via the first connecting bar, ensuring that the carrying component can move with the transport chain. The first rotating seats at both ends of the first connecting bar provide rotatable support for the first connecting members. The first connecting members have connecting shafts that connect to the inner chain, allowing the carrying component to be lifted and lowered under the guidance of the inner chain.
[0014] Preferably, the second end of the load-bearing component is provided with a second connecting bar fixed to the transport chain. The second connecting bar has second rotating seats at both ends. Each rotating seat has an extension rod and a second connecting member. One end of the extension rod is rotatably connected to the second rotating seat, and the other end is fixed to the second connecting member. The second connecting member has a connecting shaft that connects to the outer chain. The second end of the load-bearing component is fixed to the transport chain via the second connecting bar, ensuring that, like the first end, it can move with the transport chain. The second rotating seats at both ends of the second connecting bar provide rotatable support points for the extension rod. The extension rod allows the second end of the load-bearing component to extend to the outer chain so that the connecting shaft can connect to the outer chain, enabling the load-bearing component to operate under the guidance of the outer chain.
[0015] Preferably, the first and second rotating seats have the same shape and size, as do the first and second connecting members. Both the first and second connecting members have an integrally formed extension rod and connecting shaft, with the extension rod connected to either the first or second rotating seat via a bearing. The consistent shape and size of the first and second rotating seats, the first connecting member, and the second connecting member achieves standardized part design. This helps reduce manufacturing costs, improve production efficiency, and simplify maintenance and replacement processes. The integrally formed design of the extension rod and connecting shaft reduces the number of parts and lowers assembly costs. Simultaneously, this design improves the overall strength and stability of the structure, enhancing the durability and reliability of the load-bearing component. The different mating positions of the extension rod and bearing allow the extension rod to adapt to both the first and second ends of the load-bearing component.
[0016] Preferably, a horizontal transport section is provided between the second transverse unloaded section and the second load-bearing section. The horizontal transport section is at the same height as the first conversion section. When the second end of the load-bearing component is located in the horizontal transport section, its first end is located on the first conversion section. This gives the load-bearing component a certain horizontal transport capacity.
[0017] Preferably, the load-bearing strip includes thin square tubes fixed on the transport chain, and nylon strips are provided between adjacent thin square tubes; the nylon material has a certain wear resistance and toughness, and as the main part of the load-bearing strip, it has a long service life. The nylon strips are spaced apart by the thin square tubes to avoid interference caused by deformation of the nylon strips.
[0018] Both the first and second connecting strips are made of thick square tubing, and both the first and second rotating seats have square holes in which the thick square tubing is inserted. This ensures a stable connection between the first and second connecting strips and the first and second rotating seats, respectively, preventing relative rotation.
[0019] Preferably, the frame is equipped with a motor, and the sprocket sets include an inner drive sprocket that engages with the inner chain and an outer drive sprocket that engages with the outer chain. The inner and outer drive sprockets of the two sprocket sets are connected by a common drive shaft, which is connected to the motor. When the motor starts, it drives the drive shaft to rotate. The drive shaft connects both the inner and outer drive sprockets of the two sprocket sets, ensuring they rotate at the same speed. The inner and outer drive sprockets engage with the inner and outer chains respectively, and when they rotate, they drive the chains to move along a predetermined path.
[0020] Preferably, the frame is equipped with support wheels at at least one turning position of the load-bearing component, so that the load-bearing component abuts against the support wheels when turning. The design principle of the support wheels is based on the fact that the load-bearing component needs a stable support point to ensure a smooth transition during movement, especially when turning. By installing support wheels at the turning positions of the frame, when the load-bearing component moves to these positions, it will contact the support wheels, and the support wheels will provide the necessary support and guidance, thereby helping the load-bearing component to complete the turning action smoothly and steadily.
[0021] The continuous lifting device provided by this utility model combines multiple load-bearing components. Some load-bearing components return to their original position when unloaded, while others transport goods, thus realizing continuous transportation of goods. This allows the load-bearing components in both unloaded and loaded states to operate simultaneously, avoiding idle operation, improving transportation efficiency, and reducing transportation costs. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the first part of the continuous lifting equipment.
[0023] Figure 2 This is a schematic diagram of the second part of the continuous lifting equipment.
[0024] Figure 3 for Figure 2 A magnified view of part A in the middle;
[0025] Figure 4 for Figure 2 A magnified view of part B in the middle;
[0026] Figure 5 for Figure 2 A magnified view of part C in the middle;
[0027] Figure 6 This is an exploded view of a portion of the continuous lifting equipment.
[0028] Figure 7 This is a structural schematic diagram of the load-bearing component;
[0029] Figure 8 A schematic diagram of the exploded structure of the supporting component;
[0030] Figure 9 This is a schematic diagram of the third part of the continuous lifting equipment.
[0031] Figure labeling: 100, frame; 110, guide rail; 120, motor; 121, drive shaft; 200, load-bearing component; 210, transport chain; 220, load-bearing bar; 221, nylon strip; 222, thin square tube; 230, first connecting bar; 231, first rotating seat; 232, first connecting piece; 240, connecting shaft; 250, second connecting bar; 251, second rotating seat; 252, second connecting piece; 260, extension rod; 270, shaft. 300, Inner chain; 310, First vertical unloaded section; 320, First horizontal unloaded section; 330, First transfer section; 340, First load-bearing section; 400, Outer chain; 410, Second vertical unloaded section; 420, Second horizontal unloaded section; 430, Second load-bearing section; 440, Second transfer section; 450, Horizontal transport section; 510, Inner drive wheel; 520, Inner driven wheel; 530, Outer drive wheel; 540, Outer driven wheel; 550, Support wheel. Detailed Implementation
[0032] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so as to make the technical solution of this utility model easier to understand and master. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0033] This embodiment provides a continuous lifting device, such as... Figure 1-9 As shown, the device includes a frame 100, with symmetrical sprocket assemblies and chain assemblies fitted on both sides of the frame 100. A load-bearing component 200 is fixed to the chain assemblies. The load-bearing component 200 includes a transport chain 210 and multiple load-bearing bars 220 fixed to the transport chain 210. The chain assemblies include an inner chain 300 and an outer chain 400. A first end of the load-bearing component 200 is connected to one of the inner chain 300 and the outer chain 400, and a second end is connected to the other. The inner chain 300 has a first vertical... The outer chain 400 has a second vertical unloaded section 410 and a second load-bearing section 430, with the first vertical unloaded section 310 and the second vertical unloaded section 410 arranged side by side so that the load-bearing surface is vertical when the load-bearing component 200 is on the first vertical unloaded section 310 and the second vertical unloaded section 410. The first load-bearing section 340 and the second load-bearing section 430 are distributed at intervals so that the load-bearing surface is horizontal when the load-bearing component 200 is on the first load-bearing section 340 and the second load-bearing section 430.
[0034] When the load-bearing assembly 200 is on the first vertical unloaded section 310 and the second vertical unloaded section 410, the load-bearing surface remains vertical because these two chain segments are parallel, allowing for convenient unloaded lifting and lowering operations. When the load-bearing assembly 200 enters the first load-bearing section 340 and the second load-bearing section 430, the load-bearing surface becomes horizontal because these two chain segments are spaced apart. The first load-bearing section 340 and the second load-bearing section 430 drive the load-bearing assembly 200 to move up and down, placing the goods to be transported on the load-bearing assembly 200 to achieve the purpose of transporting goods up and down. Through the continuous movement of the sprocket set and chain set, the load-bearing assembly 200 can continuously switch between vertical and horizontal states. By combining multiple load-bearing assemblies 200, some load-bearing assemblies 200 can return to their unloaded positions while others transport goods, achieving continuous transport of goods. Since the load-bearing component 200 is composed of multiple load-bearing strips 220 and these load-bearing strips 220 are fixed on the transport chain 210, the load-bearing component 200 can deform, which facilitates the transition between the load-bearing component 200 and the vertical state.
[0035] like Figure 2-5 As shown, the inner chain 300 has a first transverse unloaded section 320 and a first transition section 330, and the first vertical unloaded section 310, the first transverse unloaded section 320, the first transition section 330 and the first load-bearing section 340 are connected in sequence.
[0036] The outer chain 400 has a second transverse unloaded section 420 and a second transition section 440, and the second vertical unloaded section 410, the second transverse unloaded section 420, the second load-bearing section 430 and the second transition section 440 are connected in sequence.
[0037] This embodiment uses upward transport of goods as an example for further explanation. In specific applications, the continuous lifting equipment can also transport equipment downwards, by simply having motor 120 reverse-drive the relevant components. Figure 2The initial position of the load-bearing component 200 is at its highest point, requiring downward repositioning. When the first end of the load-bearing component 200 moves to the first vertical unloaded section 310, while the second end remains in the second transition section 440, the load-bearing component 200 begins to turn from horizontal to vertical. This continues until the second end moves to the second vertical unloaded section 410. The load-bearing component 200 then moves downwards in a vertical position until the first end moves to the first horizontal unloaded section 320. The second end remains in the second vertical unloaded section 410. The load-bearing component 200 then turns again until... The second end of the carrier component 200 moves to the second transverse unloaded section 420, and the first end of the carrier component 200 further moves to the first transition section 330. At this time, the first end and the second end of the carrier component 200 move in opposite directions. When the first end of the carrier component 200 is in the first transition section 330 or the first carrier section 340, and the carrier component 200 is in a horizontal state, goods to be transported can be placed on the carrier component 200. The first end of the carrier component 200 is in the first carrier section 340, and the second end is in the second carrier section 430. The carrier component 200 moves upward to transport the goods upward. Figure 1 As shown, when the equipment has multiple load-bearing components 200, some load-bearing components 200 transport goods upwards, while others return to their empty positions downwards. Both operations occur simultaneously to achieve continuous transportation.
[0038] like Figure 1 , 2 As shown, the frame 100 is equipped with a guide rail 110, and both the first load-bearing section 340 and the second load-bearing section 430 are located within the guide rail 110. The guide rail 110 provides stable support for the load-bearing assembly 200 during vertical transportation, preventing damage to goods or safety accidents caused by swaying or tilting of the load-bearing assembly 200. The design of the guide rail 110 allows the load-bearing assembly 200 to move accurately along a predetermined path, avoiding transportation errors or equipment malfunctions caused by path deviations.
[0039] like Figure 6-8As shown, the first end of the carrying component 200 is provided with a first connecting bar 230 fixed to the transport chain 210. The first connecting bar 230 has first rotating seats 231 at both ends. Each first rotating seat 231 has a rotatable first connecting member 232. Each first connecting member 232 has a connecting shaft 240 connected to the inner chain 300. The first end of the carrying component 200 is fixed to the transport chain 210 via the first connecting bar 230, ensuring that the carrying component 200 can move with the transport chain 210. The first rotating seats 231 at both ends of the first connecting bar 230 provide rotatable support for the first connecting member 232. The connecting shafts 240 on the first connecting member 232 are connected to the inner chain 300, allowing the carrying component 200 to be lifted and transported under the guidance of the inner chain 300.
[0040] Furthermore, the second end of the bearing assembly 200 is provided with a second connecting bar 250 fixed to the transport chain 210. The second connecting bar 250 has second rotating seats 251 at both ends. The second rotating seats 251 are provided with an extension rod 260 and a second connecting member 252. One end of the extension rod 260 is rotatably connected to the second rotating seat 251, and the other end is fixed to the second connecting member 252. The second connecting member 252 has a connecting shaft 240 connected to the outer chain 400. The second end of the bearing assembly 200 is fixed to the transport chain 210 via the second connecting bar 250, ensuring that, like the first end, it can move with the movement of the transport chain 210. The second rotating seats 251 at both ends of the second connecting bar 250 provide rotatable support points for the extension rod 260. The extension rod 260 allows the second end of the load-bearing assembly 200 to extend to the outer chain 400 so that the connecting shaft 240 can be connected to the outer chain 400, enabling the load-bearing assembly 200 to run under the guidance of the outer chain 400.
[0041] like Figure 7-8As shown, the first rotating seat 231 and the second rotating seat 251 have the same shape and size, as do the first connecting member 232 and the second connecting member 252. Both the first connecting member 232 and the second connecting member 252 have an integrally formed extension rod 260 and a connecting shaft 240. The extension rod 260 is connected to the first rotating seat 231 or the second rotating seat 251 via a bearing 270. The consistent shape and size of the first rotating seat 231, the second rotating seat 251, the first connecting member 232, and the second connecting member 252 achieves standardized part design. This helps reduce manufacturing costs, improve production efficiency, and simplify maintenance and replacement processes. The integrally formed design of the extension rod 260 and the connecting shaft 240 reduces the number of parts and lowers assembly costs. Simultaneously, this design improves the overall strength and stability of the structure, enhancing the durability and reliability of the load-bearing assembly 200. The different mating positions of the extension rod 260 and the bearing 270 allow the extension rod 260 to be adapted to both the first and second ends of the load-bearing assembly 200. In other alternative embodiments, the shape and size of the first rotating seat 231 and the second rotating seat 251 may not be the same, and the shape and size of the first connecting member 232 and the second connecting member 252 may not be the same.
[0042] like Figure 5 As shown, a horizontal transport section 450 is located between the second transverse unloaded section 420 and the second load-bearing section 430. The horizontal transport section 450 is at the same height as the first conversion section 330. When the second end of the load-bearing component 200 is located on the horizontal transport section 450, its first end is located on the first conversion section 330. This gives the load-bearing component 200 a certain horizontal transport capacity. When the second end of the load-bearing component 200 is on the horizontal transport section 450, its first end is on the first conversion section 330, which facilitates loading or unloading goods onto the load-bearing component 200.
[0043] like Figure 7 , 8 As shown, the support bar 220 includes thin square tubes 222 fixed to the transport chain 210, with nylon strips 221 between adjacent thin square tubes 222. The thin square tubes 222, as the main body of the support bar 220, have good support and load-bearing capacity due to their metal material and a long service life. The thin square tubes 222 are spaced apart by the nylon strips 221; the ends of the thin square tubes 222 are separated by nylon strips 221, while the middle sections are not separated by nylon strips 221. This prevents interference caused by deformation of the thin square tubes 222, and the nylon strips 221 provide anti-slip properties. Both the nylon strips 221 and the thin square tubes 222 are fixedly connected to the corresponding nodes of the transport chain 210 by bolts.
[0044] Both the first connecting strip 230 and the second connecting strip 250 are thick square tubes, and both the first rotating seat 231 and the second rotating seat 251 have square holes in which the thick square tubes are inserted. In this way, the first connecting strip 230 and the second connecting strip 250 are stably connected to the first rotating seat 231 and the second rotating seat 251 respectively, avoiding relative rotation.
[0045] like Figure 1 As shown, the frame 100 is equipped with a motor 120. The sprocket sets include an inner drive sprocket 510 and an inner driven sprocket 520 that cooperate with the inner chain 300, and an outer drive sprocket 530 and an outer driven sprocket 540 that cooperate with the outer chain 400. The inner drive sprockets 510 and 530 of the two sprocket sets are connected by the same drive shaft 121, which is connected to the motor 120. When the motor 120 starts, it drives the drive shaft 121 to rotate. The drive shaft 121 connects the inner drive sprockets 510 and 530 of both sprocket sets, ensuring that they rotate at the same speed. The inner drive sprockets 510 and 530 cooperate with the inner chain 300 and the outer chain 400, respectively. When they rotate, they drive the chain to move along a predetermined path.
[0046] like Figure 9 As shown, the frame 100 provides support wheels 550 at the turning positions of the load-bearing component 200, so that the load-bearing component 200 abuts against the support wheels 550 when turning. The support wheels 550 are coaxially arranged with the corresponding driven wheels. The design principle of the support wheels 550 is based on the fact that the load-bearing component 200 needs a stable support point to ensure a smooth transition during movement, especially when turning. By installing the support wheels 550 at the turning positions of the frame 100, when the load-bearing component 200 moves to these positions, it will contact the support wheels 550, and the support wheels 550 will provide the necessary support and guidance, thereby helping the load-bearing component 200 to complete the turning action smoothly and steadily. In this embodiment, there are two support wheels 550 at the same turning position. In other optional embodiments, one support wheel 550 can also be provided at the same turning position, positioned in the middle of the corresponding driven wheels on both sides. The number of support wheels 550 can also exceed two.
Claims
1. A continuous lifting device, comprising a frame (100), characterized in that, The frame (100) has symmetrical sprocket sets and chain sets that cooperate with the sprocket sets on both sides. A load-bearing component (200) is fixed on the chain set. The load-bearing component (200) includes a transport chain (210) and a plurality of load-bearing bars (220) fixed on the transport chain (210). The chain assembly includes an inner chain (300) and an outer chain (400), and a first end of the bearing component (200) is connected to one of the inner chain (300) and the outer chain (400), and a second end of the bearing component (200) is connected to the other. The inner chain (300) has a first vertical unloaded section (310) and a first load-bearing section (340), and the outer chain (400) has a second vertical unloaded section (410) and a second load-bearing section (430). The first vertical unloaded section (310) and the second vertical unloaded section (410) are arranged side by side, so that the load-bearing surface is vertical when the load-bearing component (200) is on the first vertical unloaded section (310) and the second vertical unloaded section (410). The first load-bearing section (340) and the second load-bearing section (430) are distributed at intervals, so that the load-bearing surface is horizontal when the load-bearing component (200) is on the first load-bearing section (340) and the second load-bearing section (430).
2. The continuous lifting device according to claim 1, characterized in that, The inner chain (300) has a first transverse unloaded section (320) and a first transition section (330), and the first vertical unloaded section (310), the first transverse unloaded section (320), the first transition section (330) and the first load-bearing section (340) are connected in sequence; The outer chain (400) has a second transverse unloaded section (420) and a second conversion section (440), and the second vertical unloaded section (410), the second transverse unloaded section (420), the second load-bearing section (430) and the second conversion section (440) are connected in sequence.
3. The continuous lifting device according to claim 2, characterized in that, The frame (100) is provided with a guide rail (110), and the first bearing section (340) and the second bearing section (430) are both located within the guide rail (110).
4. A continuous lifting device according to claim 2, characterized in that, The first end of the bearing component (200) is provided with a first connecting bar (230) fixed on the transport chain (210). The two ends of the first connecting bar (230) are provided with first rotating seats (231). The first rotating seats (231) are provided with rotatable first connecting members (232). The first connecting members (232) are provided with connecting shafts (240) connected to the inner chain (300).
5. A continuous lifting device according to claim 4, characterized in that, The second end of the bearing assembly (200) is provided with a second connecting bar (250) fixed on the transport chain (210). The two ends of the second connecting bar (250) are provided with second rotating seats (251). The second rotating seats (251) are provided with an extension rod (260) and a second connecting member (252). One end of the extension rod (260) is rotatably connected to the second rotating seat (251), and the other end is fixed to the second connecting member (252). The second connecting member (252) is provided with a connecting shaft (240) connected to the outer chain (400).
6. A continuous lifting device according to claim 5, characterized in that, The first rotating seat (231) and the second rotating seat (251) have the same shape and size. The first connecting member (232) and the second connecting member (252) have the same shape and size. The first connecting member (232) and the second connecting member (252) each have an integrally formed extension rod (260) and a connecting shaft (240). The extension rod (260) is connected to the first rotating seat (231) or the second rotating seat (251) through a bearing (270).
7. A continuous lifting device according to claim 2, characterized in that, A horizontal transport section (450) is provided between the second transverse unloaded section (420) and the second load-bearing section (430), the horizontal transport section (450) being at the same height as the first conversion section (330), and when the second end of the load-bearing component (200) is located on the horizontal transport section (450), its first end is located on the first conversion section (330).
8. A continuous lifting device according to claim 5, characterized in that, The carrying strip (220) includes a thin square tube (222) fixed on the transport chain (210), and a nylon strip (221) is provided between adjacent thin square tubes (222); Both the first connecting strip (230) and the second connecting strip (250) are thick square tubes. Both the first rotating seat (231) and the second rotating seat (251) have square holes, and the thick square tubes are inserted into the square holes.
9. A continuous lifting device according to claim 1, characterized in that, The frame (100) is equipped with a motor (120). The sprocket set includes an inner drive wheel (510) that cooperates with the inner chain (300) and an outer drive wheel (530) that cooperates with the outer chain (400). The inner drive wheel (510) and the outer drive wheel (530) of the two sprocket sets are connected by the same drive shaft (121), and the drive shaft (121) is connected to the motor (120).
10. A continuous lifting device according to claim 1, characterized in that, The frame (100) is provided with a support wheel (550) at at least one turning position of the load-bearing component (200) so that the load-bearing component (200) abuts against the support wheel (550) when turning.