Warehouse goods lifting equipment and using method thereof

Abstract

The invention provides warehouse goods lifting equipment and a using method thereof, and belongs to the technical field of lifting devices.The technical scheme is that the warehouse goods lifting equipment comprises a balance plate, a protective shell is fixed to the bottom of the balance plate, and two lifting assemblies are symmetrically arranged in the protective shell; the two lifting assemblies can adjust the heights of the two sides of the first lifting frame correspondingly. According to the using method of the warehouse cargo lifting equipment, the lifting assembly raises or lowers the height of the corresponding side of the first lifting frame based on the gravity center state information of the first lifting frame until the pressure on the two sides of the first lifting frame recovers balance. The lifting device has the beneficial effects that the device can automatically adjust the posture of the first lifting frame when the gravity center of goods shifts to cause tension unbalance, so that the tension on the two sides is recovered to be balanced, the overload carrying condition is effectively prevented, and the stability and the safety in the lifting process are ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of lifting devices, and particularly relates to a warehousing goods lifting equipment and its using method. Background Art

[0002] In the modern warehousing and logistics system, warehousing goods lifting equipment plays an indispensable role. It can achieve the efficient transfer of goods in warehousing areas at different heights, greatly improve the utilization rate of warehousing space, reduce the manual handling cost, and significantly enhance the overall efficiency of warehousing operations. It is a key equipment to ensure the smooth operation of warehousing logistics links.

[0003] The existing warehousing goods lifting equipment mainly consists of a lifting frame, a support frame, a wire winding roller and a steel cable. The lifting frame is used to carry goods, and a support frame is arranged outside it to provide stable support for the whole lifting system. On the support frame, several wire winding rollers are installed, and steel cables are wound on the wire winding rollers. The end of the steel cable is fixedly connected to the top of the lifting frame. When it is necessary to lift goods, the staff rotates the wire winding roller to gradually retract the steel cable. Under the action of the pulling force of the steel cable, the lifting frame drives the goods to rise smoothly and transports the goods to the designated warehousing position; when lowering the goods, the wire winding roller is rotated in the reverse direction to release the steel cable. With this simple and effective operation method, the vertical transportation of goods during the warehousing process is realized.

[0004] However, in actual applications, the shapes and sizes of goods vary widely, and it is difficult to place them accurately and standardly. When the goods are placed on the lifting frame, the center of gravity is easily biased to one side. Once the center of gravity shifts, the steel cable in the direction of the center of gravity shift needs to bear a pulling force far exceeding the normal level. The steel cable is in an overloaded state for a long time, which will accelerate wear, and the internal structure will gradually fatigue and age due to excessive stress. After repeatedly bearing huge pulling forces, the strength of the steel cable decreases, and finally it may break, resulting in the falling of the lifting frame and the goods. This will not only cause serious damage to the goods and bring direct economic losses, but also pose a serious threat to the life safety of on-site operators, greatly restricting the safety and stability of warehousing operations. Summary of the Invention

[0005] Aiming at the problem that the uneven pulling force caused by the shift of the center of gravity of goods leads to the overloading of warehousing goods lifting equipment, the present invention provides a warehousing goods lifting equipment and its using method that can adjust the center of gravity of goods to make the pulling force balanced and will not cause overloading.

[0006] In a first aspect, to solve the above problems, the technical solution adopted by the present invention is a warehousing goods lifting device, which includes a first lifting frame. A second lifting frame is arranged outside the first lifting frame. A balance plate is arranged above the second lifting frame. A first pulling rope is connected between the balance plate and the second lifting frame. A second pulling rope is fixed to the top of the balance plate. A protective shell is fixed to the bottom of the balance plate. Two lifting components are symmetrically arranged inside the protective shell. The two lifting components can respectively adjust the heights of both sides of the first lifting frame. A center-of-gravity detection component is arranged in the empty slot between the bottom of the first lifting frame and the second lifting frame. The center-of-gravity detection component can monitor the center-of-gravity state of the first lifting frame and can feedback the center-of-gravity state information of the first lifting frame to the lifting components.

[0007] In this technical solution, the goods are placed in the first lifting frame, and the first lifting frame immediately exerts pressure on the center-of-gravity detection component below. The center-of-gravity detection component monitors the pressures on both sides of the first lifting frame in real time, calculates the change in the center of gravity, and feedbacks the center-of-gravity state information to the lifting components. The lifting components adjust the heights of both sides of the first lifting frame according to the feedback information until the pressures on both sides of the first lifting frame on the center-of-gravity detection component are restored to equilibrium. Therefore, when the center of gravity of the goods shifts and causes uneven pulling force, the device can restore the pulling force to equilibrium by adjusting the heights of both sides of the first lifting frame, effectively avoiding overloading.

[0008] Further, the first lifting frame includes a bottom plate. Partition doors are arranged on both sides of the bottom plate along the length direction. Guard plates are fixed to both sides of the bottom plate along the width direction. The guard plates include a vertical part at the bottom, a horizontal part at the top, and an inclined part in the middle that inclines towards the inside of the bottom plate. A first guiding wheel is installed on the bottom surface of the horizontal part. A second through hole corresponding to the first guiding wheel is arranged on the inclined part. A second guiding wheel corresponding to the second through hole is installed on the outer side surface of the inclined part. The partition doors are arranged on both sides of the bottom plate along the length direction, which is convenient for putting the goods into or taking them out of the first lifting frame from both sides, improving the convenience and efficiency of goods loading and unloading. The guard plates on both sides of the bottom plate along the width direction can play a protective role for the goods in the first lifting frame, preventing the goods from falling during the lifting process and also protecting the surrounding personnel from being injured by the falling goods. The first guiding wheel is installed on the bottom surface of the horizontal part of the guard plate, and the second guiding wheel corresponding to the position of the first guiding wheel is installed on the outer side surface of the inclined part. This layout provides a reasonable guiding path for the steel wire rope in the lifting component, enabling the steel wire rope to change direction more smoothly when bypassing the guiding wheel.

[0009] Further, a third guide wheel is installed inside the protective shell. A first through hole is provided at the top of the second lifting frame. The lifting assembly includes a winch fixed inside the protective shell. The output end of the winch is connected to a steel wire rope. The end of the steel wire rope sequentially bypasses the third guide wheel, the first guide wheel, and the second guide wheel and is fixedly connected to the top of the lifting plate. The lifting plate is located outside the vertical portion of the guard plate. A pull plate is fixed to the bottom of the lifting plate. A fixed frame is provided below the pull plate. The fixed frame is fixed to the outer side surface of the vertical portion of the guard plate. A first top plate is arranged inside the fixed frame. The upper surface of the first top plate is fixedly connected to the bottom of the second connecting block. The top of the second connecting block penetrates through the top of the fixed frame and is fixedly connected to the pull plate, and the second connecting block is vertically arranged. Installing the winch and the third guide wheel inside the protective shell makes the overall structure more compact, effectively utilizes the space, and at the same time, the protective shell can also protect the internal components from being interfered with and damaged by external factors. The steel wire rope sequentially bypasses the third guide wheel, the first guide wheel, and the second guide wheel. This design with multiple guide wheels can flexibly change the direction of the steel wire rope, enabling the pulling force of the winch to be effectively transmitted to the lifting plate.

[0010] Further, guide rods are arranged on both sides of the first top plate. The guide rods are vertically arranged. One end of each guide rod is fixedly connected to the upper surface of the first top plate, and the other end of each guide rod penetrates through the top of the fixed frame. The guide rods provide clear guidance for the movement of the first top plate, making the lifting process more precise and controllable. When the winch pulls the lifting plate through the steel wire rope, the guide rods ensure that the first top plate moves along a predetermined path, which helps to achieve precise adjustment of the height of the first lifting frame.

[0011] Further, a second top plate is fixed to the bottom of the fixed frame. The second top plate includes a first plate body and a second plate body that are perpendicular to each other. The first plate body is fixedly connected to the bottom of the bottom plate, and the second plate body is fixedly connected to the vertical portion of the guard plate. The mutually perpendicular first plate body and second plate body are respectively connected to the bottom plate and the guard plate, increasing the connection points and connection area. Compared with a single connection method, the fixed frame can be fixed more firmly, improving the reliability of the connection and ensuring that the connection will not become loose due to factors such as vibration and impact during long-term use, thereby ensuring the safe operation of the entire device.

[0012] Further, a stabilizing plate is fixed to the outer side surface of the vertical portion of the guard plate. The stabilizing plate is located between the lifting plate and the pull plate. A first connecting block penetrating through the stabilizing plate is arranged on the stabilizing plate. The first connecting block is vertically arranged. The top of the first connecting block is fixedly connected to the bottom of the lifting plate, and the bottom of the first connecting block is fixedly connected to the pull plate. The first connecting block penetrates through the stabilizing plate and is vertically arranged, which can limit the movement of the lifting plate and the pull plate in the horizontal direction, enabling them to move only in the vertical direction. This helps to improve the accuracy of the lifting process, ensuring that the first lifting frame can rise and fall smoothly, reducing shaking and deviation.

[0013] Furthermore, the center-of-gravity detection component includes two movable plates, which are symmetrically distributed in the empty slot along the width direction of the bottom plate. There are bases between the two movable plates and the bottom plate. The top of the base is fixedly connected to the bottom plate, and the bottom of the base abuts against the upper surface of the movable plate. There are weight sensors between the two movable plates and the second lifting frame. The weight sensors are fixed on the second lifting frame, and the detection ends of the weight sensors abut against the bottom of the movable plate. Through the two movable plates symmetrically distributed along the width direction of the bottom plate and the cooperating weight sensors, the weight changes at two symmetrical positions can be detected in real time when the goods are placed on the first lifting frame. According to the numerical difference between the two weight sensors, it is possible to accurately judge whether the center of gravity of the goods deviates from the central position. In addition, the center-of-gravity detection component can adapt to goods with different shapes and weight distributions. Whether the goods are of regular shape or irregular shape, as long as they are placed on the first lifting frame, the center-of-gravity detection component can sense the weight distribution through the two movable plates and the weight sensors, so as to effectively detect the center-of-gravity position, with strong versatility and adaptability.

[0014] Furthermore, a connecting member is provided between the two movable plates. The connecting member is fixedly connected to the second lifting frame. Positioning columns are fixed on both sides of the connecting member. The axial direction of the positioning column is the vertical direction, and the two positioning columns respectively penetrate the two movable plates. Insertion rods penetrating the movable plates are provided on the two movable plates. The axial direction of the insertion rod is the vertical direction, and the upper end of the insertion rod is fixedly connected to the second top plate, and the lower end of the insertion rod passes through the movable plate and is fixedly connected to the limit block. The connecting member is fixedly connected to the second lifting frame, and the positioning columns on both sides thereof penetrate the two movable plates, which can limit the movement of the movable plates in the horizontal direction, ensuring that the movable plates can only move slightly in the vertical direction according to the change of the goods weight, thereby improving the accuracy of center-of-gravity detection. The insertion rod penetrates the movable plate and the upper end is fixedly connected to the second top plate and the lower end is fixedly connected to the limit block, which further limits the movement trajectory of the movable plate in the vertical direction, making the lifting of the movable plate more stable and accurate, avoiding the inclination or shaking of the movable plate during the movement, and ensuring the accuracy of the detection data of the weight sensor.

[0015] Furthermore, there are four first pull ropes in total. The four first pull ropes are evenly distributed at the four corners of the balance plate. The upper ends of the first pull ropes are fixedly connected to the bottom of the balance plate, and the lower ends of the first pull ropes are fixedly connected to the corresponding corners at the top of the second lifting frame. The four corners at the bottom of the balance plate and the four corners of the second lifting frame are connected by the first pull ropes to form a stable constraint system. This system can not only effectively disperse the pulling force during the lifting process, reduce the stress burden on a single pull rope, but also enhance the overall stability of the structure. Even in a harsh working environment or under complex stress conditions, it can ensure the firm connection of each component, greatly reducing the risk of the first pull rope breaking or the connection point loosening.

[0016] Second aspect, the present invention also provides a method for using a warehousing goods lifting device, which is applied to the warehousing goods lifting device and includes the following steps: Step 1: Place the goods in the first lifting frame, and the first lifting frame applies pressure to the center-of-gravity detection component below; as a medium between the goods and the center-of-gravity detection component, the first lifting frame can accurately transmit the weight of the goods to the center-of-gravity detection component in the form of pressure, providing a basis for accurately detecting the center-of-gravity change subsequently.

[0017] Step 2: The center-of-gravity detection component monitors the pressure values applied to both sides of the first lifting frame in real time, calculates the change in the center of gravity of the first lifting frame, and then feeds back the center-of-gravity state information of the first lifting frame to the lifting component; by monitoring the pressure values in real time, any change in the center of gravity of the first lifting frame can be captured in a timely manner. This real-time nature enables the system to quickly respond to the change in the center of gravity and take timely measures for adjustment, avoiding the occurrence of dangerous situations due to excessive center-of-gravity deviation. Calculating the change in the center of gravity based on the pressure values on both sides can accurately determine the position and deviation degree of the center of gravity of the first lifting frame. This accurate calculation provides accurate data support for the subsequent precise adjustment of the lifting component. Feeding back the center-of-gravity state information to the lifting component enables the entire system to automatically adjust according to the actual situation without manual intervention, improving work efficiency and automation.

[0018] Step 3: Based on the center-of-gravity state information fed back by the center-of-gravity detection component, the lifting component raises or lowers the height of the corresponding side of the first lifting frame until the pressures applied by both sides of the first lifting frame to the center-of-gravity detection component are restored to balance. The lifting component can automatically adjust according to the information fed back by the center-of-gravity detection component, realizing the automatic balance of the center of gravity of the first lifting frame. This automatic adjustment function can quickly and effectively respond to the change in the center of gravity, avoiding errors and delays that may occur in manual adjustment, and improving the stability and safety of the system.

[0019] It can be seen from the above technical solutions that the advantages of the present invention are as follows: In this technical solution, after the goods are placed in the first lifting frame, the first lifting frame applies pressure to the center-of-gravity detection component below. The center-of-gravity detection component dynamically calculates the change in the center of gravity of the goods by monitoring the pressure data on both sides of the first lifting frame in real time and feeds back the real-time center-of-gravity state information to the lifting component. The lifting component adjusts the lifting height of both sides of the first lifting frame according to the received feedback information until the pressures applied by both sides of the first lifting frame to the center-of-gravity detection component reach a balanced state again. To sum up, through this closed-loop adjustment mechanism, the device can automatically adjust the attitude of the first lifting frame when the center of gravity of the goods deviates and causes the pulling force to be unbalanced, so that the pulling forces on both sides are restored to equilibrium, effectively preventing the occurrence of overloading situations and ensuring the stability and safety of the lifting process. Description of the Drawings

[0020] To more clearly illustrate the technical solution of the present invention, the following will briefly introduce the attached drawings required in the description. Obviously, the attached drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other attached drawings can be obtained based on these drawings.

[0021] Figure 1 Structural schematic of the specific embodiment of the present invention Figure 1 ; Figure 2 For Figure 1 Partial enlarged view at position A in Figure 3 Structural schematic of the specific embodiment of the present invention Figure 2 ; Figure 4 Side view structural schematic of the specific embodiment of the present invention; Figure 5 Partial side view structural schematic of the specific embodiment of the present invention; Figure 6 Front view structural schematic of the specific embodiment of the present invention; Figure 7 Partial front view structural schematic of the specific embodiment of the present invention.

[0022] In the figure: 1 - First lifting frame, 2 - Partition door, 3 - Guard plate, 4 - Second lifting frame, 5 - Balance plate, 6 - First pull rope, 7 - Second pull rope, 8 - Protective shell, 9 - First through hole, 10 - First guide wheel, 11 - Second guide wheel, 12 - Pulling plate, 13 - Connecting plate, 14 - Fixed frame, 15 - First top plate, 16 - Second top plate, 17 - Guide rod, 18 - Second through hole, 19 - Lifting plate, 20 - First connection block, 21 - Stabilizing plate, 22 - Third guide wheel, 23 - Second connection block, 24 - Winch, 25 - Empty slot, 26 - Base, 27 - Insert rod, 28 - Limiting block, 29 - Weight sensor, 30 - Connecting piece, 31 - Movable plate, 32 - Positioning column, 33 - Bottom plate, 34 - Vertical part, 35 - Horizontal part, 36 - Inclined part, 37 - Steel wire rope, 38 - First plate body, 39 - Second plate body. Specific embodiment

[0023] To make the purpose, features, and advantages of the present invention more obvious and understandable, the following will clearly and completely describe the technical solutions in the present invention in conjunction with the attached drawings in this specific embodiment. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this patent.

[0024] Embodiment 1: A warehousing goods lifting device, as Figure 1 shown, which includes a first lifting frame 1, a second lifting frame 4, a balance connection component, and a center of gravity detection component. The second lifting frame 4 is located outside the first lifting frame 1. The balance connection component is installed at the top of the second lifting frame 4, and the balance connection component is respectively connected to the first lifting frame 1 and the second lifting frame 4. The center of gravity detection component is arranged in the empty slot 25 between the bottom of the first lifting frame 1 and the second lifting frame 4. The center of gravity detection component can monitor the center of gravity state of the first lifting frame 1 in real time, and feedback the obtained center of gravity state information of the first lifting frame 1 to the balance connection component. Then, the balance connection component performs a lifting operation on the side where the center of gravity of the first lifting frame 1 is offset according to the received information.

[0025] In this specific embodiment, the second lifting frame 4 specifically adopts the following structure: The second lifting frame 4 is composed of a base plate and a cover plate. Both the base plate and the cover plate are designed as rectangular structures. The cover plate is located directly above the base plate, and the base plate and the cover plate are arranged parallel to each other. Between the base plate and the cover plate, vertical columns are installed. The vertical columns are placed vertically. In this embodiment, a total of four vertical columns are provided, and these four vertical columns are respectively located at the four corners of the cover plate. The upper end of the vertical column is fixedly connected to the corner at the bottom of the cover plate by welding; the lower end of the vertical column is also fixedly connected to the corresponding corner at the top of the base plate by welding. Two first through holes 9 penetrating the cover plate are opened on the cover plate, and these two first through holes 9 are symmetrically distributed along the transverse center plane of the cover plate.

[0026] As Figure 3 shown, in this specific embodiment, the first lifting frame 1 specifically adopts the following structure: The first lifting frame 1 includes a bottom plate 33, and the bottom plate 33 is also rectangular. The bottom plate 33 has a pair of mutually parallel and longer side edges, and a pair of mutually parallel and shorter side edges, and the longer side edges are perpendicular to the shorter side edges. On the two shorter side edges of the bottom plate 33 along the width direction, guard plates 3 are installed. The guard plate 3 is composed of a lower vertical portion 34, an upper horizontal portion 35, and an inclined portion 36 that inclines inward towards the bottom plate 33 in the middle. These three parts are manufactured by an integral processing and forming process. The bottom of the lower vertical portion 34 is fixedly connected to the side edge of the bottom plate 33 by welding. A second through hole 18 penetrating the inclined portion 36 is opened on the inclined portion 36. On the two side edges of the bottom plate 33 along the length direction, partition doors 2 are provided. The partition door 2 is composed of two door panels, the two door panels are symmetrically arranged, and the outer sides of the two door panels are respectively hinged to the vertical portions 34 of the guard plates 3 on both sides of the bottom plate 33 through hinges.

[0027] In this specific embodiment, the balance connection component specifically adopts the following structure: The balance connection component includes a balance plate 5, which is located above the second lifting frame 4 and is also designed as a rectangular structure. The positions of its long and short sides are the same as those of the cover plate of the second lifting frame 4. At the top of the balance plate 5, a second pulling rope 7 is connected. The lower end of the second pulling rope 7 is fixed to the top of the balance plate 5 by bolts; the upper end of the second pulling rope 7 is fixedly connected to the lifting equipment. A total of two second pulling ropes 7 are provided, and these two second pulling ropes 7 are symmetrically distributed along the transverse center plane of the balance plate 5.

[0028] A first pulling rope 6 is connected between the balance plate 5 and the second lifting frame 4. A total of four first pulling ropes 6 are provided, and these four first pulling ropes 6 are evenly distributed at the four corners of the balance plate 5. The upper ends of the first pulling ropes 6 are fixed to the bottom of the balance plate 5 by bolts; the lower ends of the first pulling ropes 6 are fixed to the corresponding corners of the cover plate of the second lifting frame 4 by sling rings. At the bottom of the balance plate 5, a protective shell 8 is welded, and the protective shell 8 is located at the middle position of the balance plate 5. The inside of the protective shell 8 is a hollow structure, and an opening is provided at the bottom of the protective shell 8.

[0029] As Figure 4 、 5 shown, the balance connection component further includes a lifting component, which is located inside the protective shell 8. A total of two lifting components are provided, and these two lifting components are symmetrically and staggeredly installed inside the protective shell 8. Through these two lifting components, the two side guard plates 3 of the first lifting frame 1 can be lifted respectively.

[0030] The lifting component includes a winch 24, a third guide wheel 22, a first guide wheel 10, a second guide wheel 11, and a lifting plate 19. The winch 24 is fixedly installed inside the protective shell 8 by bolts; the third guide wheel 22 is also fixed inside the protective shell 8 by bolts. The first guide wheel 10 is fixedly installed on the bottom surface of the horizontal part 35 of the guard plate 3 by bolts, and the position of the first guide wheel 10 corresponds to the second through hole 18 on the inclined part 36 of the guard plate 3. The second guide wheel 11 is fixedly installed on the outer side surface of the inclined part 36 of the guard plate 3 by bolts, and its position also corresponds to the second through hole 18 on the inclined part 36 of the guard plate 3. The output end of the winch 24 is connected to a steel wire rope 37. The end of the steel wire rope 37 bypasses the third guide wheel 22, then passes through the first through hole 9, then bypasses the first guide wheel 10 and passes through the second through hole 18, and finally bypasses the second guide wheel 11 and is fixedly connected to the top of the lifting plate 19 by a sling ring. The lifting plate 19 is located outside the vertical part 34 of the guard plate 3, and a pulling plate 12 is provided below the lifting plate 19. Connecting plates 13 are welded to the top and bottom of the pulling plate 12, and the vertical part 34 of the guard plate 3 can be pulled through the pulling plate 12.

[0031] A stabilizing plate 21 is welded to the outer side surface of the vertical portion 34 of the guard plate 3. The stabilizing plate 21 is arranged horizontally, and the stabilizing plate 21 is located between the lifting plate 19 and the pulling plate 12. A first connecting block 20 penetrating through the stabilizing plate 21 is provided on the stabilizing plate 21. The first connecting block 20 can slide up and down in the stabilizing plate 21 along the vertical direction. The first connecting block 20 is vertically placed, and several of them are provided. These first connecting blocks 20 are parallel to each other and evenly spaced. The top of the first connecting block 20 is welded to the bottom of the lifting plate 19, and the bottom of the first connecting block 20 is welded to the connecting plate 13 at the top of the pulling plate 12.

[0032] As Figure 2 shown, a fixing frame 14 is provided below the pulling plate 12. The fixing frame 14 is a hollow rectangular frame structure, and the fixing frame 14 is welded to the outer side surface of the vertical portion 34 of the guard plate 3. A first top plate 15 is arranged inside the fixing frame 14. The first top plate 15 is arranged horizontally. Above the first top plate 15, a second connecting block 23 is provided. The second connecting block 23 is vertically placed, and several of them are provided. These second connecting blocks 23 are parallel to each other and evenly spaced. The bottom of the second connecting block 23 is welded to the upper surface of the first top plate 15. The top of the second connecting block 23 penetrates through the top of the fixing frame 14 and is welded to the connecting plate 13 at the bottom of the pulling plate 12. The second connecting block 23 can drive the first top plate 15 to move up and down synchronously along the vertical direction in the fixing frame 14. Guide rods 17 are arranged on both sides of the first top plate 15. The guide rods 17 are vertically placed. One end of the guide rod 17 is welded to the upper surface of the first top plate 15, and the other end of the guide rod 17 penetrates through the top of the fixing frame 14. And the guide rod 17 can move up and down along the vertical direction in the fixing frame 14.

[0033] A second top plate 16 is welded to the bottom of the fixing frame 14. The second top plate 16 is integrally L-shaped and consists of a first plate body 38 and a second plate body 39 that are perpendicular to each other. The first plate body 38 is welded to the bottom of the bottom plate 33, and the second plate body 39 is welded to the vertical portion 34 of the guard plate 3.

[0034] As Figure 6As shown in the figure, in this specific embodiment, the center of gravity detection component adopts the following structure: The center of gravity detection component includes two movable plates 31. The movable plates 31 are in a rectangular structure as a whole, and these two movable plates 31 are symmetrically distributed in the empty slot 25 along the width direction of the bottom plate 33. Between the two movable plates 31 and the bottom plate 33, a base 26 is provided. The base 26 is designed as an inverted trapezoidal structure with an upper surface larger than the lower surface. The top of the base 26 is welded to the bottom plate 33, and the bottom of the base 26 abuts against the upper surface of the movable plate 31. Between the two movable plates 31 and the second lifting frame 4, a weight sensor 29 is provided. These two weight sensors 29 are symmetrically distributed in the empty slot 25 along the width direction of the bottom plate 33. The weight sensor 29 is fixed to the second lifting frame 4 by bolts, and the detection end of the weight sensor 29 abuts against the bottom of the movable plate 31. The specific abutting position corresponds to the abutting position between the bottom of the base 26 and the upper surface of the movable plate 31.

[0035] As Figure 7 As shown in the figure, between the two movable plates 31, a connecting piece 30 is provided. The connecting piece 30 is welded to the second lifting frame 4, and the height of the connecting piece 30 is flush with that of the movable plate 31. On both sides of the top of the connecting piece 30, positioning columns 32 are welded. The axial direction of the positioning columns 32 is the vertical direction, and the two positioning columns 32 respectively penetrate through the two movable plates 31. The movable plates 31 can move up and down along the corresponding positioning columns 32. On one side of the two movable plates 31 away from the positioning columns 32, insertion rods 27 penetrating through the movable plates 31 are provided. The axial direction of the insertion rods 27 is the vertical direction. The upper end of the insertion rod 27 is fixedly connected to the first plate body 38 of the second top plate 16. The lower end of the insertion rod 27 passes through the movable plate 31 and is fixedly connected to a limit block 28. The limit block 28 can prevent the movable plate 31 from sliding out of the insertion rod 27.

[0036] Embodiment 2: A method for using the warehousing goods lifting equipment in Embodiment 1, the specific steps are as follows: Step 1: First, open the partition door 2 of the first lifting frame 1, and place the goods on the bottom plate 33 of the first lifting frame 1. After the goods are loaded, use a lifting device to lift the balance plate 5 through the second pulling rope 7. As the lifting device continues to operate, during the rising process of the balance plate 5, relying on the first pulling ropes 6 connecting the four corners of its bottom with the four corners of the top of the first lifting frame 1, the first lifting frame 1 is driven to rise synchronously. At the same time, the balance plate 5 also drives the second lifting frame 4 to rise through the lifting component.

[0037] Since the bottom plate 33 of the first lifting frame 1 is generally rectangular, in actual operation, after the goods are placed on the bottom plate 33, the overall center of gravity formed by the goods and the first lifting frame 1 often shifts along the length direction of the bottom plate 33. When the center of gravity shifts, the first lifting frame 1 transfers the pressure to the two movable plates 31 below through the base 26 below it. These two movable plates 31 are symmetrically distributed along the width direction of the bottom plate 33 of the first lifting frame 1. After being subjected to the pressure, the movable plates 31 will move slightly downward along the direction of the insertion rod 27 and the positioning column 32. The insertion rod 27 and the positioning column 32 not only provide guidance for the movement of the movable plates 31, but also ensure that the movement trajectory of the movable plates 31 is stable and controllable. While the movable plates 31 move downward, they will apply pressure to the corresponding weight sensors 29 below. Since the overall center of gravity of the first lifting frame 1 has deviated, the downward movement distances of the two movable plates 31 are not the same, so the pressures felt by the weight sensors 29 below the two movable plates 31 are also different.

[0038] Step 2: The two weight sensors 29 continuously and real-time monitor the pressure values acting on themselves, and based on this data, calculate the change in the center of gravity of the first lifting frame 1. After the calculation is completed, the weight sensors 29 quickly feedback the center of gravity state information of the first lifting frame 1 to the lifting component, providing a data basis for subsequent center of gravity adjustment.

[0039] At the same time as the center of gravity of the first lifting frame 1 shifts, the balance plate 5 will tilt slightly due to uneven force. The first pull ropes 6 at the four corners of the bottom of the balance plate 5, as flexible connectors 30, will undergo slight elastic deformation accordingly. This elastic deformation enables the first pull ropes 6 to share the tension borne by the steel wire ropes 37 outside the protective plate 3. The four first pull ropes 6 cooperate with each other, utilize their flexible characteristics, effectively buffer and reduce the shaking amplitude caused by the center of gravity shift, maintain the relative stability of the entire lifting system, and avoid safety accidents caused by excessive shaking amplitude.

[0040] Step 3: After receiving the center of gravity shift information feedback by the weight sensors 29, the lifting component will immediately analyze the center of gravity shift situation. Once it is determined that the center of gravity shift exceeds the preset safety range, the lifting component will quickly respond. The winch 24 in the lifting component starts to operate, and by precisely retracting and releasing the steel wire rope 37, adjusts the center of gravity position of the first lifting frame 1. During the adjustment process, the weight sensors 29 continuously and real-time monitor the pressure values and feedback the data to the lifting component. The lifting component dynamically adjusts the speed and length of the winch 24 to retract and release the steel wire rope 37 according to the feedback information until the pressure values real-time monitored by the two weight sensors 29 reach within the safety range. At this time, the first lifting frame 1 returns to the balanced state, and the entire lifting system can continue to safely and stably perform the goods lifting operation.

[0041] As can be seen from the above embodiments, the beneficial effects of the present invention are as follows. In this specific embodiment, after the goods are placed in the first lifting frame, the first lifting frame will exert pressure on the center-of-gravity detection component below. The center-of-gravity detection component dynamically calculates the change in the center of gravity of the goods by monitoring the pressure data on both sides of the first lifting frame in real time, and feeds back the real-time center-of-gravity state information to the lifting component. The lifting component adjusts the lifting heights on both sides of the first lifting frame according to the received feedback information until the pressures on both sides of the first lifting frame on the center-of-gravity detection component reach a balanced state again. To sum up, through this closed-loop adjustment mechanism, the device can automatically adjust the attitude of the first lifting frame when the center of gravity of the goods shifts and causes the tension to be unbalanced, so that the tensions on both sides are restored to balance, thereby effectively preventing the occurrence of overloading and ensuring the stability and safety of the lifting process.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A warehousing goods lifting device, comprising a first lifting frame (1), characterized in that, A second lifting frame (4) is arranged outside the first lifting frame (1), a balance plate (5) is arranged above the second lifting frame (4), a first pulling rope (6) is connected between the balance plate (5) and the second lifting frame (4), a second pulling rope (7) is fixed at the top of the balance plate (5), a protective shell (8) is fixed at the bottom of the balance plate (5), and two lifting components are symmetrically arranged inside the protective shell (8), and the two lifting components can respectively adjust the heights of both sides of the first lifting frame (1); a gravity detection component is arranged in the empty slot (25) between the bottom of the first lifting frame (1) and the second lifting frame (4), and the gravity detection component can monitor the gravity state of the first lifting frame (1) and can feedback the gravity state information of the first lifting frame (1) to the lifting components.

2. The warehousing goods lifting equipment according to claim 1, characterized in that, The first lifting frame (1) includes a bottom plate (33), partition doors (2) are arranged on both side edges of the bottom plate (33) along the length direction, protective plates (3) are fixed on both side edges of the bottom plate (33) along the width direction, the protective plate (3) includes a vertical part (34) below, a horizontal part (35) above, and an inclined part (36) in the middle inclined towards the inside of the bottom plate (33), a first guide wheel (10) is installed on the bottom surface of the horizontal part (35), a second through hole (18) corresponding to the first guide wheel (10) in position is arranged on the inclined part (36), and a second guide wheel (11) corresponding to the second through hole (18) in position is installed on the outer side surface of the inclined part (36).

3. The warehousing goods lifting equipment according to claim 2, wherein, A third guide wheel (22) is installed inside the protective shell (8), a first through hole (9) is arranged at the top of the second lifting frame (4), the lifting component includes a winch (24), the winch (24) is fixed inside the protective shell (8), the output end of the winch (24) is connected with a steel wire rope (37), the end of the steel wire rope (37) sequentially bypasses the third guide wheel (22), the first guide wheel (10) and the second guide wheel (11) and is fixedly connected with the top of a lifting plate (19), the lifting plate (19) is located outside the vertical part (34) of the protective plate (3), a pulling plate (12) is fixed at the bottom of the lifting plate (19), a fixed frame (14) is arranged below the pulling plate (12), the fixed frame (14) is fixed on the outer side surface of the vertical part (34) of the protective plate (3), a first top plate (15) is arranged inside the fixed frame (14), the upper surface of the first top plate (15) is fixedly connected with the bottom of a second connecting block (23), the top of the second connecting block (23) penetrates through the top of the fixed frame (14) and is fixedly connected with the pulling plate (12), and the second connecting block (23) is vertically arranged.

4. The warehousing goods lifting equipment according to claim 3, characterized in that, Guide rods (17) are arranged on both sides of the first top plate (15), the guide rods (17) are vertically arranged, one end of the guide rod (17) is fixedly connected with the upper surface of the first top plate (15), and the other end of the guide rod (17) penetrates through the top of the fixed frame (14).

5. The warehousing goods lifting equipment according to claim 3, characterized in that, A second top plate (16) is fixed to the bottom of the fixed frame (14). The second top plate (16) includes a first plate body (38) and a second plate body (39) that are perpendicular to each other. The first plate body (38) is fixedly connected to the bottom of the bottom plate (33), and the second plate body (39) is fixedly connected to the vertical portion (34) of the guard plate (3).

6. The warehousing goods lifting equipment according to claim 3, characterized in that, A stabilizing plate (21) is fixed to the outer side of the vertical portion (34) of the guard plate (3). The stabilizing plate (21) is located between the lifting plate (19) and the pulling plate (12). A first connecting block (20) passing through the stabilizing plate (21) is provided on the stabilizing plate (21). The first connecting block (20) is vertically placed. The top of the first connecting block (20) is fixedly connected to the bottom of the lifting plate (19), and the bottom of the first connecting block (20) is fixedly connected to the pulling plate (12).

7. The warehousing goods lifting equipment according to claim 5, characterized in that, The center of gravity detection assembly includes two movable plates (31). The two movable plates (31) are symmetrically distributed in the empty slot (25) along the width direction of the bottom plate (33). A base (26) is provided between the two movable plates (31) and the bottom plate (33). The top of the base (26) is fixedly connected to the bottom plate (33), and the bottom of the base (26) abuts against the upper surface of the movable plate (31). A weight sensor (29) is provided between the two movable plates (31) and the second lifting frame (4). The weight sensor (29) is fixed on the second lifting frame (4), and the detection end of the weight sensor (29) abuts against the bottom of the movable plate (31).

8. The warehousing goods lifting device according to claim 7, characterized in that, A connecting member (30) is provided between the two movable plates (31). The connecting member (30) is fixedly connected to the second lifting frame (4). Positioning columns (32) are fixed to both sides of the connecting member (30). The axis direction of the positioning columns (32) is the vertical direction, and the two positioning columns (32) respectively pass through the two movable plates (31). Insertion rods (27) passing through the movable plates (31) are provided on the two movable plates (31). The axis direction of the insertion rods (27) is the vertical direction, and the upper end of the insertion rod (27) is fixedly connected to the second top plate (16), and the lower end of the insertion rod (27) passes through the movable plate (31) and is fixedly connected to the limiting block (28).

9. The warehousing goods lifting equipment according to claim 1, characterized in that A total of four first pulling ropes (6) are provided. The four first pulling ropes (6) are evenly distributed at the four corners of the balance plate (5). The upper end of the first pulling rope (6) is fixedly connected to the bottom of the balance plate (5), and the lower end of the first pulling rope (6) is fixedly connected to the corresponding corner at the top of the second lifting frame (4).

10. A method for using a storage goods lifting device, characterized in that, Applied to the warehousing goods lifting equipment as described in claim 1, it includes the following steps. Step 1, place the goods in the first lifting frame (1), and the first lifting frame (1) applies pressure to the center of gravity detection assembly below. Step 2, the center of gravity detection assembly monitors the pressure values applied to both sides of the first lifting frame (1) in real time, calculates the change in the center of gravity of the first lifting frame (1), and then feeds back the center of gravity state information of the first lifting frame (1) to the lifting assembly. Step 3, based on the center of gravity state information fed back by the center of gravity detection assembly, the lifting assembly raises or lowers the height of the corresponding side of the first lifting frame (1) until the pressures applied to the center of gravity detection assembly on both sides of the first lifting frame (1) are restored to balance.

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