A super-large load-bearing movable lift and control method

Abstract

The present invention discloses an ultra-large load-bearing movable lift, comprising a bottom support platform arranged at the bottom, the bottom support platform is connected to a multi-section guide rail mechanism through a lifting adjustment mechanism, and the lifting height of the multi-section guide rail mechanism is adjusted through the lifting adjustment mechanism 4; a cantilever beam for carrying goods is arranged at the front of the multi-section guide rail mechanism, and the multi-section guide rail mechanism adjusts the actual elongation effect length of the cantilever beam. The present invention also discloses a control method for an ultra-large load-bearing movable lift. Compared with the prior art, the technical solution of the present invention has the advantages of convenient operation, flexible operation, safety and reliability, etc., and can effectively optimize the structure of the lifting device, reduce its overall volume and improve operational flexibility.

Description

Technical Field

[0001] The invention relates to the technical field of super-large load-bearing cargo lifting, and in particular to a super-large load-bearing movable lift and a control method. Background Art

[0002] In the prior art, large cargo is usually loaded and unloaded by manually operating a forklift or controlling a corresponding crane device to transfer the cargo from one location to another designated location. However, the prior art manually operates forklifts and crane devices, which requires high equipment procurement costs for enterprises, and the forklifts and crane devices are large in size, making the movement process extremely inconvenient and requiring a large operating space, making the overall operation process difficult.

[0003] At the same time, the existing cargo loading and unloading space is becoming increasingly tight, requiring the overall structure of the cargo loading and unloading device to be more compact, so that the operation process can be more flexible, and the cargo loading and unloading device is also required to have a larger operating size during operation to meet different loading and unloading needs. In addition, the cost of the overall device needs to be reduced so as not to put too much pressure on the overall operating costs of the enterprise. Summary of the invention

[0004] The main purpose of the present invention is to provide an ultra-large load-bearing movable lift that is easy to operate, flexible in operation, safe and reliable. The present invention also provides a control method for using the ultra-large load-bearing movable lift, aiming to optimize the structure of the lifting device, reduce its overall volume and improve operational flexibility.

[0005] To achieve the above-mentioned purpose, the present invention proposes an ultra-large load-bearing movable lift, comprising a bottom support platform arranged at the bottom, a support pulley arranged in a rectangular manner is arranged on the bottom surface of the bottom support platform, a multi-section guide rail mechanism is arranged above the bottom support platform, a lifting and adjusting mechanism with intersecting internal structures is arranged between the bottom support platform and the multi-section guide rail mechanism, the top and bottom ends of the lifting and adjusting mechanism are respectively hingedly connected to the multi-section guide rail mechanism and the bottom support platform, a thrust component is arranged in the lifting and adjusting mechanism to increase or decrease the working height of the lifting and adjusting mechanism; a fixed slide rail frame is arranged in the multi-section guide rail mechanism, and the fixed slide rail frame is connected to the fixed slide rail frame. The front part of the slide rail frame is slidably connected to the first slide rail frame, the rear support frame of the rear part of the fixed slide rail frame is connected to the fixed end of the first push rod, the pushing end of the first push rod is connected to the front of the first slide rail frame, and the first push rod pushes the first slide rail frame to slide relatively with respect to the fixed slide rail frame; the front part of the first slide rail frame is slidably connected to the second slide rail frame, a transition support frame is provided below the rear part of the first slide rail frame, the transition support frame is connected to the fixed end of the second push rod, the pushing end of the second push rod is connected to the front of the second slide rail frame, the second push rod pushes the second slide rail frame to slide relatively with respect to the first slide rail frame, and the second slide rail frame is also connected to a cantilever beam for carrying goods.

[0006] Preferably, a first slide groove is provided on the inner side of the fixed slide rail frame, and the side of the first slide rail frame is embedded in the first slide groove and is slidably connected to the fixed slide rail frame; a second slide groove is provided on the inner side of the first slide rail frame, and the side of the second slide rail frame is embedded in the second slide groove and is slidably connected to the first slide rail frame.

[0007] Preferably, the fixed end of the first push rod is hingedly connected to the rear support frame, and the fixed end of the second push rod is hingedly connected to the transition support frame.

[0008] Preferably, the lifting and adjusting mechanism includes an X-frame symmetrically arranged on both sides, each X-frame includes a first connecting plate and a second connecting plate hingedly connected to the center, the top of the first connecting plate and the second connecting plate are hingedly connected to the multi-section guide rail mechanism, the bottom of the first connecting plate and the second connecting plate are hingedly connected to the bottom support platform, a first intermediate rod and a second intermediate rod are provided between the two opposite first connecting plates from top to bottom, a third intermediate rod and a fourth intermediate rod are provided between the two opposite second connecting plates from top to bottom, the thrust component includes two third push rods and two fourth push rods, the bottom ends of the two third push rods are hingedly connected to the fourth intermediate rod, the push-out ends of the two third push rods are hingedly connected to the first intermediate rod, the bottom ends of the two fourth push rods are hingedly connected to the second intermediate rod, and the push-out ends of the two fourth push rods are hingedly connected to the third intermediate rod.

[0009] Preferably, the first push rod, the second push rod, the third push rod and the fourth push rod may be hydraulic cylinders or pneumatic push rods.

[0010] Preferably, the installation heights of the first push rod, the second push rod and the cantilever beam are sequentially reduced, the outer diameter of the first push rod is greater than the outer diameter of the second push rod, and a first reinforcing rib is provided between the cantilever beam and the second slide rail frame.

[0011] Preferably, a servo motor is installed on the side of the supporting pulley, and the servo motor drives the supporting pulley to rotate by meshing the central axis of the transmission pulley through gears, and at least two of the four supporting pulleys are universal rotating wheels.

[0012] Preferably, a plurality of limit shafts are provided on the surface of the bottom support platform. When the bottom surface of the multi-section guide rail mechanism is supported on the top of the limit shaft, the central axis of the third push rod and the central axis of the fourth push rod are in a vertical state, and the third push rod and the fourth push rod are in a maximum compression state.

[0013] Preferably, a secondary support rod is extended outwardly from the side of the bottom support platform.

[0014] The present invention also proposes a control method for the ultra-large load-bearing movable lift, comprising the following steps:

[0015] Step S1: when the lift is in a non-load-bearing state, the lifting and lowering adjustment mechanism is in a downwardly folded state, the bottom surface of the multi-section guide rail mechanism is supported on the top end of the limit shaft, and the third push rod and the fourth push rod are in a vertical and maximum compression state;

[0016] Step S2: When the cargo needs to be unloaded, the support pulley is driven to move by the servo motor, and the plurality of support pulleys jointly move the lift to a designated position, and the third push rod and the fourth push rod jointly push upward to push the entire lifting adjustment mechanism up to the desired height position;

[0017] Step S3: the first push rod pushes the first slide frame to move outward relative to the fixed slide frame, and the second push rod simultaneously pushes the second slide frame to move outward relative to the first slide frame, until the cantilever beam moves out to below the designated position of the goods, and the third push rod and the fourth push rod push upward again so that the cantilever beam completely carries the goods and the goods can be moved out of the shelf;

[0018] Step S4: The servo motor is engaged to drive the support pulley to rotate in the opposite direction, and the cantilever beam gradually moves backward while carrying the goods. When the goods are completely off the shelf, the third push rod and the fourth push rod are retracted inward to reduce the lifting height of the lifting adjustment mechanism, and the overall center of gravity of the lift moves downward, and then is transferred to the designated placement position through the support pulley, and the third push rod and the fourth push rod are pushed upward to raise the lifting adjustment mechanism to a suitable height;

[0019] Step S5: After the goods are placed at the designated position, the lifting height of the lifting and adjusting mechanism is lowered by contracting the third push rod and the fourth push rod inward. After the goods are stably placed on the designated shelf, the second push rod pulls the second slide frame to move inward relative to the first slide frame, and the first push rod pulls the first slide frame to move inward relative to the fixed slide frame, and finally the lifting and adjusting mechanism is lowered to the lowest position, and the second slide frame, the first slide frame and the fixed slide frame are in a fully stored state.

[0020] The technical solution of the present invention has the following advantages over the prior art:

[0021] The technical solution of the present invention is to set a foldable lifting and adjusting mechanism between the bottom support platform and the multi-section guide rail mechanism. The push rod inside the lifting and adjusting mechanism can adaptively raise or lower the working height of the lifting and adjusting mechanism according to different actual working conditions, so that the lift can act on shelves of different heights for loading and unloading. In addition, the multi-section guide rail mechanism used for loading and unloading in the technical solution of the present invention can push the first slide frame outward relative to the fixed slide frame by the first push rod, and simultaneously push the second slide frame outward relative to the first slide frame by the second push rod until the cantilever beam is moved out to the bottom of the goods for loading and unloading. Compared with the prior art, the multi-section guide rail structure of the present invention can greatly reduce the overall volume, have a larger operating size and improve the flexibility of the operation process. In addition, a servo motor is installed on the side of the support pulley arranged on the bottom support platform. The servo motor drives the support pulley to rotate by meshing the central axis of the transmission pulley through the gear, which can easily realize the steering and movement of the lift. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a structural principle diagram of the ultra-large load-bearing movable lift of the present invention;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the multi-section guide rail mechanism of the present invention;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the lifting and lowering adjustment mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the support pulley of the present invention.

[0027] Description of Figure Numbers:

[0028] Label name Label name 1 Bottom support platform 7 First slide rail 2 Support pulley 71 Transition support frame 21 Servo Motor 8 First putt 4 Lifting adjustment mechanism 9 Second slide rail 41 X-Frame 10 Second putt 42 First connecting plate 11 Cantilever beam 421 First intermediate rod 12 Third putt 422 Second intermediate rod 13 Fourth putt 43 Second connecting plate 17 Limit axis 431 Third intermediate rod 18 Auxiliary support rod 432 Fourth intermediate pole 19 First chute 6 Fixed rail bracket 20 Second chute 61 Rear support bracket 101 Multi-section guide rail mechanism

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The invention provides an ultra-large load-bearing movable lift.

[0034] See also Figure 1 The ultra-large load-bearing movable lift of the present invention includes a bottom supporting platform 1 arranged at the bottom, the bottom supporting platform 1 is connected to the multi-section guide rail mechanism 101 through a lifting adjustment mechanism 4, and the lifting height of the multi-section guide rail mechanism 101 is adjusted by the lifting adjustment mechanism 4; a cantilever beam 11 for carrying goods is provided at the front of the multi-section guide rail mechanism 101, and the multi-section guide rail mechanism 101 adjusts the actual elongation effect length of the cantilever beam 11.

[0035] See also Figures 2 to 4In the embodiment of the present invention, the ultra-large load-bearing movable lift includes a bottom support platform 1 arranged at the bottom, the bottom surface of the bottom support platform 1 is provided with a supporting pulley 2 arranged in a rectangular manner, a multi-section guide rail mechanism 101 is provided above the bottom support platform 1, and a lifting adjustment mechanism 4 with an intersecting internal structure is provided between the bottom support platform 1 and the multi-section guide rail mechanism 101. The top and bottom ends of the lifting adjustment mechanism 4 are respectively hingedly connected to the multi-section guide rail mechanism 101 and the bottom support platform 1, and a thrust component is provided in the lifting adjustment mechanism 4 to increase or decrease the effective height of the lifting adjustment mechanism 4; a fixed slide rail frame 6 is provided in the multi-section guide rail mechanism 101, and the front of the fixed slide rail frame 6 is connected to the first A slide rail frame 7 is slidably connected, a rear support frame 61 at the rear of the fixed slide rail frame 6 is connected to the fixed end of the first push rod 8, and the pushing end of the first push rod 8 is connected to the front of the first slide rail frame 7, and the first push rod 8 pushes the first slide rail frame 7 to slide relative to the fixed slide rail frame 6; the front of the first slide rail frame 7 is slidably connected to the second slide rail frame 9, and a transition support frame 71 is provided at the lower rear of the first slide rail frame 7, and the transition support frame 71 is connected to the fixed end of the second push rod 10, and the pushing end of the second push rod 10 is connected to the front of the second slide rail frame 9, and the second push rod 10 pushes the second slide rail frame 9 to slide relative to the first slide rail frame 7, and the second slide rail frame 9 is also connected to a cantilever beam 11 for carrying goods.

[0036] In order to realize the relative sliding of the first slide rail frame 7 relative to the fixed slide rail frame 6, and the relative sliding of the second slide rail frame 9 relative to the first slide rail frame 7, the fixed slide rail frame 6 of this embodiment is provided with a first slide groove 19 on the inner side, and the side of the first slide rail frame 7 is embedded in the first slide groove 19 and is slidably connected with the fixed slide rail frame 6; the first slide rail frame 7 is provided with a second slide groove 20 on the inner side, and the side of the second slide rail frame 9 is embedded in the second slide groove 20 and is slidably connected with the first slide rail frame 7. In addition, the fixed end of the first push rod 8 of this embodiment is hingedly connected to the rear support frame 61, and the fixed end of the second push rod 10 is hingedly connected to the transition support frame 71.

[0037] In addition, in order to realize that the lifting and adjusting mechanism 4 can conveniently realize height adjustment, the lifting and adjusting mechanism 4 of this embodiment includes X-frames 41 symmetrically arranged on both sides, each X-frame 41 includes a first connecting plate 42 and a second connecting plate 43 connected by a central hinge, the top of the first connecting plate 42 and the second connecting plate 43 are hingedly connected to the multi-section guide rail mechanism 101, the bottom of the first connecting plate 42 and the second connecting plate 43 are hingedly connected to the bottom support platform 1, and a first intermediate rod 421 is arranged from top to bottom between the two opposite first connecting plates 42 and the second intermediate rod 422, a third intermediate rod 431 and a fourth intermediate rod 432 are arranged between the two opposite second connecting plates 43 from top to bottom, the thrust component includes two third push rods 12 and two fourth push rods 13, the bottom ends of the two third push rods 12 are hingedly connected to the fourth intermediate rod 432, the push-out ends of the two third push rods 12 are hingedly connected to the first intermediate rod 421, the bottom ends of the two fourth push rods 12 are hingedly connected to the second intermediate rod 422, and the push-out ends of the two fourth push rods 13 are hingedly connected to the third intermediate rod 431.

[0038] Preferably, the first push rod 8, the second push rod 10, the third push rod 12 and the fourth push rod 13 of this embodiment may be hydraulic cylinders. In other embodiments, the first push rod 8, the second push rod 10, the third push rod 12 and the fourth push rod 13 may be pneumatic push rods.

[0039] In order to facilitate installation and improve the strength of the connecting structure, the installation heights of the first push rod 8, the second push rod 10 and the cantilever beam 11 of the present embodiment are successively reduced so that the three can be arranged and installed from top to bottom without interference. The outer diameter of the first push rod 8 is larger than the outer diameter of the second push rod 10, and a first reinforcing rib is provided between the cantilever beam 11 and the second slide rail frame 9.

[0040] In order to realize the convenient movement of the ultra-large load-bearing movable lift of this embodiment, a servo motor 21 is installed on the side of the support pulley 2 of this embodiment. The servo motor 21 drives the support pulley 2 to rotate by engaging the central axis of the transmission pulley through gears. At least two of the four support pulleys 21 are universal rotating wheels, which are convenient for steering.

[0041] In order to support the upper structure of the ultra-large load-bearing movable lift and improve the overall structural strength, a plurality of limit shafts 17 are arranged on the surface of the bottom support platform 1 of the present embodiment. When the bottom surface of the multi-section guide rail mechanism 101 is supported on the top of the limit shaft 17, the central axis of the third push rod 12 and the central axis of the fourth push rod 13 are in a vertical state, and the third push rod 12 and the fourth push rod 13 are in a maximum compression state, so as to better support the upper structure of the ultra-large load-bearing movable lift.

[0042] In order to achieve stability of the ultra-large load-bearing movable lift in a stationary state, a secondary support rod 18 is extended outwardly from the side of the bottom support platform 1 of this embodiment.

[0043] See also Figures 1 to 4 The present invention also proposes a control method using an ultra-large load-bearing movable lift, comprising the following steps:

[0044] When the lift is in a non-load-bearing state, the lifting and adjusting mechanism 4 is in a folded downward state, the bottom surface of the multi-section guide rail mechanism 101 is supported on the top of the limit shaft 17, and the third push rod 12 and the fourth push rod 13 are in a vertical and maximum compression state. When the cargo needs to be unloaded, the servo motor 21 is engaged to drive the support pulley 2 to move, and the multiple support pulleys 2 jointly move the lift to a specified position, and the third push rod 12 and the fourth push rod 13 jointly push upward to push the entire lifting and adjusting mechanism 4 up to the required height position.

[0045] Then the first push rod 8 pushes the first slide frame 7 to move outward relative to the fixed slide frame 6, and simultaneously pushes the second slide frame 9 to move outward relative to the first slide frame 7 through the second push rod 10, until the cantilever beam 11 moves out to under the goods, and further pushes upward again through the third push rod 12 and the fourth push rod 13 so that the cantilever beam 11 can fully carry the goods and move the goods upward out of the shelf.

[0046] Then the servo motor 21 is engaged to drive the support pulley 2 to rotate in the opposite direction, and the cantilever beam 11 carries the goods and gradually moves backward. When the goods are completely off the shelf, the third push rod 12 and the fourth push rod 13 are retracted inward to reduce the lifting height of the lifting adjustment mechanism 4, and the overall center of gravity of the lift moves downward, and then is transferred to the designated placement position through the support pulley 2. The third push rod 12 and the fourth push rod 13 are pushed upward to raise the lifting adjustment mechanism 4 to a suitable height.

[0047] After the goods are finally placed at the designated position, the lifting height of the lifting and adjusting mechanism 4 is lowered by contracting the third push rod 12 and the fourth push rod 13 inwardly. After the goods are stably placed on the designated shelf, the second push rod 10 pulls the second slide rail frame 9 to move inward relative to the first slide rail frame 7, and the first push rod 8 pulls the first slide rail frame 7 to move inward relative to the fixed slide rail frame 6, finally causing the lifting and adjusting mechanism 4 to drop to the lowest position, and the second slide rail frame 9, the first slide rail frame 7 and the fixed slide rail frame 6 are in a fully stored state.

[0048] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An ultra-large load-bearing movable lift, characterized in that: It comprises a bottom support platform arranged at the bottom, a support pulley arranged in a rectangular manner is arranged on the bottom surface of the bottom support platform, a servo motor is installed on the side of the support pulley, a multi-section guide rail mechanism is arranged above the bottom support platform, a plurality of limit shafts are arranged on the surface of the bottom support platform, a lifting and adjusting mechanism with an intersecting internal structure is arranged between the bottom support platform and the multi-section guide rail mechanism, the top and bottom ends of the lifting and adjusting mechanism are respectively hingedly connected to the multi-section guide rail mechanism and the bottom support platform, a thrust component is arranged in the lifting and adjusting mechanism to increase or decrease the working height of the lifting and adjusting mechanism; a fixed slide rail frame is arranged in the multi-section guide rail mechanism to connect The front part of the fixed slide rail frame is slidably connected to the first slide rail frame, the rear support frame of the rear part of the fixed slide rail frame is connected to the fixed end of the first push rod, the pushing end of the first push rod is connected to the front of the first slide rail frame, and the first push rod pushes the first slide rail frame to slide relatively with respect to the fixed slide rail frame; the front part of the first slide rail frame is slidably connected to the second slide rail frame, a transition support frame is provided below the rear of the first slide rail frame, the transition support frame is connected to the fixed end of the second push rod, the pushing end of the second push rod is connected to the front of the second slide rail frame, the second push rod pushes the second slide rail frame to slide relatively with respect to the first slide rail frame, and the second slide rail frame is also connected to a cantilever beam for carrying goods; The fixed slide rail frame is provided with a first slide groove on the inner side, and the side of the first slide rail frame is embedded in the first slide groove and is slidably connected to the fixed slide rail frame; the first slide rail frame is provided with a second slide groove on the inner side, and the side of the second slide rail frame is embedded in the second slide groove and is slidably connected to the first slide rail frame; The fixed end of the first push rod is hingedly connected to the rear support frame, and the fixed end of the second push rod is hingedly connected to the transition support frame; The lifting and adjusting mechanism comprises an X-frame symmetrically arranged on both sides, each X-frame comprises a first connecting plate and a second connecting plate which are centrally hingedly connected, the tops of the first connecting plate and the second connecting plate are hingedly connected to the multi-section guide rail mechanism, the bottoms of the first connecting plate and the second connecting plate are hingedly connected to the bottom supporting platform, a first intermediate rod and a second intermediate rod are arranged between the two opposite first connecting plates from top to bottom, a third intermediate rod and a fourth intermediate rod are arranged between the two opposite second connecting plates from top to bottom, the thrust component comprises two third push rods and two fourth push rods, the bottom ends of the two third push rods are hingedly connected to the fourth intermediate rod, the push-out ends of the two third push rods are hingedly connected to the first intermediate rod, the bottom ends of the two fourth push rods are hingedly connected to the second intermediate rod, and the push-out ends of the two fourth push rods are hingedly connected to the third intermediate rod; The installation heights of the first push rod, the second push rod and the cantilever beam are successively reduced, the outer diameter of the first push rod is greater than the outer diameter of the second push rod, and a first reinforcing rib is provided between the cantilever beam and the second slide rail frame; The control method of the ultra-large load-bearing movable lift comprises the following steps: Step S1: when the lift is in a non-load-bearing state, the lifting and lowering adjustment mechanism is in a downwardly folded state, the bottom surface of the multi-section guide rail mechanism is supported on the top end of the limit shaft, and the third push rod and the fourth push rod are in a vertical and maximum compression state; Step S2: When the cargo needs to be unloaded, the support pulley is driven to move by the servo motor, and the plurality of support pulleys jointly move the lift to a designated position, and the third push rod and the fourth push rod jointly push upward to push the entire lifting adjustment mechanism up to the desired height position; Step S3: the first push rod pushes the first slide frame to move outward relative to the fixed slide frame, and the second push rod simultaneously pushes the second slide frame to move outward relative to the first slide frame, until the cantilever beam moves out to below the designated position of the goods, and the third push rod and the fourth push rod push upward again so that the cantilever beam completely carries the goods and the goods can be moved out of the shelf; Step S4: The servo motor is engaged to drive the support pulley to rotate in the opposite direction, and the cantilever beam gradually moves backward while carrying the goods. When the goods are completely off the shelf, the third push rod and the fourth push rod are retracted inward to reduce the lifting height of the lifting adjustment mechanism, and the overall center of gravity of the lift moves downward, and then is transferred to the designated placement position through the support pulley, and the third push rod and the fourth push rod are pushed upward to raise the lifting adjustment mechanism to a suitable height; Step S5: After the goods are placed at the designated position, the lifting height of the lifting and adjusting mechanism is lowered by contracting the third push rod and the fourth push rod inward. After the goods are stably placed on the designated shelf, the second push rod pulls the second slide frame to move inward relative to the first slide frame, and the first push rod pulls the first slide frame to move inward relative to the fixed slide frame, and finally the lifting and adjusting mechanism is lowered to the lowest position, and the second slide frame, the first slide frame and the fixed slide frame are in a fully stored state.

2. The ultra-large load-bearing movable lift according to claim 1, characterized in that: The first push rod, the second push rod, the third push rod and the fourth push rod may be hydraulic cylinders or pneumatic push rods.

3. The ultra-large load-bearing movable lift according to claim 1, characterized in that: The servo motor on the side of the supporting pulley drives the supporting pulley to rotate by meshing the central axis of the transmission pulley through the gear, and at least two of the four supporting pulleys are universal rotating wheels.

4. The ultra-large load-bearing movable lift according to claim 3, characterized in that: When the bottom surface of the multi-section guide rail mechanism is supported on the top end of the limiting shaft, the central axis of the third push rod and the central axis of the fourth push rod are in a vertical state, and the third push rod and the fourth push rod are in a maximum compression state.

5. The ultra-large load-bearing movable lift according to claim 4, characterized in that: A secondary support rod is extended outwardly from the side of the bottom support platform.

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