High load freight elevator

Abstract

The application discloses a high-load freight elevator, and relates to the technical field of freight elevators, which comprises a cage, two limiting frames are symmetrically arranged at the bottom of the inner wall of the cage, driving shafts are rotatably arranged on the two limiting frames, rotating rods are fixedly arranged at one end of the two driving shafts, T-shaped moving blocks are slidably arranged on the inner walls of the two rotating rods, connecting shafts are rotatably arranged at one end of the two moving blocks, and loading platforms are fixedly arranged at one end of the connecting shafts; first motors are fixedly arranged on the two sides of the outer wall of the cage. The rotating rods can be rotated in the high-load freight elevator, and the loading platforms are synchronously rotated with the rotating rods. When in use, the rotating rods are rotated by 90 degrees to be parallel to the ground outside the elevator, the loading platforms are parallel to the rotating rods and are also located outside the cage, heavy goods are placed on the upper surfaces of the loading platforms by a forklift, the loading platforms are reversely rotated to quickly send the heavy goods into the elevator, and the safety during the carrying of the heavy goods is improved.

Description

Technical Field

[0001] This invention relates to the field of freight elevators, and more particularly to a high-load-bearing freight elevator. Background Technology

[0002] A high-load-bearing freight elevator is a specialized elevator device designed for transporting heavy goods. It typically has a large load capacity and size, capable of carrying large items or equipment, such as machinery and building materials. High-load-bearing freight elevators are commonly used in industrial, commercial, or logistics facilities to quickly and safely transport heavy goods from one floor to another.

[0003] High-load-bearing freight elevators are typically metal enclosures, found in shopping malls and office buildings for transporting goods. When transporting heavy loads, space limitations often prevent delivery vehicles from entering the elevator. The goods must be placed outside the elevator doors and manually moved inside. Due to the weight of the goods, multiple workers are usually required, a method that is both labor-intensive and dangerous. Using small trolleys to haul heavy loads into the elevator often results in improper entry angles, causing collisions with the elevator walls and shortening its lifespan. For goods that cannot be stacked, they must be placed at the bottom of the elevator, limiting the number that can be transported and requiring multiple trips, consuming significant time. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing high-load freight elevators, such as their inability to assist in cargo handling, inconvenience for trailers, and limited capacity for hauling non-stackable goods, and to propose a high-load freight elevator.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution:

[0006] A high-load-bearing freight elevator includes a car. Two limiting frames are symmetrically arranged at the bottom of the inner wall of the car. Each of the two limiting frames is rotatably equipped with a drive shaft. A rotating rod is fixed to one end of each of the two drive shafts. A T-shaped moving block is slidably arranged on the inner wall of each of the two rotating rods. A connecting shaft is rotatably arranged at one end of each of the two moving blocks. A loading platform is fixed to one end of each connecting shaft. First motors are fixed to both sides of the outer wall of the car. The output ends of the two first motors are fixedly connected to the ends of the drive shafts. A synchronous rotation component and a lifting component are provided on each of the two rotating rods. A delivery component is provided on the loading platform.

[0007] Preferably, the lifting assembly includes a first threaded rod, which is rotatably connected to the inner wall of the rotating rod. The moving block is threadedly connected to the first threaded rod. A third motor is fixedly mounted on the upper end of the rotating rod, and the output end of the third motor is fixedly connected to the upper end of the first threaded rod.

[0008] Preferably, the synchronous rotation assembly includes a concave limiting rod, a limiting block slidably mounted on the limiting rod, a second motor fixedly mounted on the inner wall of the limiting block, a rotating wheel fixedly mounted on both the output end of the second motor and the connecting shaft, a belt mounted on the rotating wheel, a synchronizing rod fixedly mounted on the limiting block, and one end of the synchronizing rod fixedly connected to the outer wall of the moving block.

[0009] Preferably, the delivery component includes multiple rollers laterally rotatably distributed in the middle of the loading platform, inclined plates sliding at both ends of the loading platform, and movable grooves opened on both sides of the upper surface of the loading platform, wherein the inclined plates are provided with adjustment components.

[0010] Preferably, the adjustment component includes a fixed block, which is fixedly connected to the center of the lower surface of the loading platform. A second threaded rod is rotatably provided inside the fixed block, and a lifting rod is slidably provided inside the fixed block. Both ends of the lifting rod are fixedly connected to the vertical plane of the inclined plate, and a rotating ring is fixedly provided at the lower end of the second threaded rod. The rotating ring is located outside and below the fixed block.

[0011] Preferably, a support assembly is provided below the loading platform, and one end of the support assembly is connected to the car.

[0012] Preferably, the support assembly includes two positioning blocks, which are fixedly connected to the lower surface edge of the loading platform. Each positioning block is fixedly provided with a circular rod, and each circular rod is rotatably provided with a support frame. Each end of the support frame is fixedly provided with a positioning shaft. Support grooves are opened on both sides of the inner wall of the car, and multiple positioning grooves are fixedly provided on the inner wall of each of the two support grooves. The positioning shaft is in contact with the inner wall of the positioning groove.

[0013] Preferably, a pair of connecting blocks are fixedly provided on the lower surface of the loading platform, and the inner wall of the connecting blocks is in contact with the inner wall of the positioning shaft.

[0014] Preferably, a fixing frame is fixedly provided at each of the four corners of the upper surface of the loading platform, and a stop bar is rotatably provided on each fixing frame.

[0015] Preferably, the loading platform is two-thirds the length of the car, and the connecting shaft is located in the middle of the loading platform.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In this invention, a rotating rod that can rotate is installed inside a high-load freight elevator, and a loading platform that rotates synchronously with the rotating rod. When in use, the rotating rod is rotated 90 degrees to be parallel to the ground outside the elevator. The loading platform is parallel to the rotating rod and is also located outside the car. Heavy goods are placed on the upper surface of the loading platform by a forklift. The rotating rod is then rotated in the opposite direction to allow the loading platform to quickly send the heavy goods into the elevator, thereby improving the safety of handling heavy goods.

[0018] 2. In this invention, by first moving the loading platform below the rotating rod and then moving the goods onto the loading platform, the loading platform is moved above the rotating rod before other goods are moved into the car, thereby increasing the elevator's carrying capacity and reducing the number of handling operations.

[0019] 3. In this invention, when both the rotating rod and the loading platform are located outside the elevator, they can block the elevator door, preventing it from closing at regular intervals, thus facilitating the transport of goods into the elevator and improving transport efficiency. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the rotating rod and loading platform structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the rotating rod of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the inclined plate structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the bottom structure of the loading platform of the present invention;

[0027] Figure 7 This is a schematic cross-sectional view of the fixing block of the present invention;

[0028] Figure 8 This is a schematic diagram of the stop bar structure of the present invention.

[0029] The following are the components listed in the diagram: 1. Car; 11. Limiting frame; 12. Drive shaft; 13. Rotating rod; 14. Moving block; 15. Connecting shaft; 16. Loading platform; 17. First motor; 2. Roller; 21. Inclined plate; 22. Moving groove; 3. First threaded rod; 31. Limiting rod; 32. Limiting block; 33. Second motor; 34. Rotating wheel; 35. Belt; 36. Third motor; 37. Synchronizing rod; 4. Fixed frame; 41. Stop bar; 5. Fixed block; 51. Lifting rod; 52. Second threaded rod; 53. Rotating ring; 6. Positioning block; 61. Circular rod; 62. Support frame; 63. Positioning shaft; 64. Support groove; 7. Connecting block. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Example 1: This example provides a high-load-bearing freight elevator, see [link / reference]. Figure 1-8 Specifically, the car includes a car 1, with two symmetrically arranged limit frames 11 at the bottom of the inner wall of the car 1. Each limit frame 11 is rotatably equipped with a drive shaft 12. Each drive shaft 12 has a rotating rod 13 fixed at one end. Each rotating rod 13 has a T-shaped moving block 14 slidably arranged on the inner wall of the two rotating rods 13. Each moving block 14 has a connecting shaft 15 rotatably arranged at one end. Each connecting shaft 15 has a loading platform 16 fixed at one end. Each outer wall of the car 1 has a first motor 17 fixed on both sides. The output ends of the two first motors 17 are fixedly connected to the ends of the drive shafts 12. Each rotating rod 13 is equipped with a synchronous rotation component and a lifting component. The loading platform 16 is equipped with a delivery component. The length of the loading platform 16 is two-thirds of that of the car 1. The connecting shaft 15 is located in the middle of the loading platform 16.

[0032] A loading platform 16 is installed in a high-load-bearing freight elevator. During operation, the first motor 17 drives the drive shaft 12 to rotate, which in turn drives the rotating rod 13 to rotate. As the rotating rod 13 rotates outward from the car 1, the synchronous rotating assembly drives the loading platform 16 to rotate in the opposite direction. The rotating rod 13 rotates 90 degrees to be parallel to the ground outside the elevator. The loading platform 16 is parallel to the rotating rod 13 and is also located outside the car 1. Heavy goods are placed on the upper surface of the loading platform 16 using a forklift. The lifting assembly moves the loading platform 16 to the end of the rotating rod 13 and into the car 1. Then, the rotating rod 13 rotates in the opposite direction to enter the car 1. The loading platform 16 and the rotating rod 13 are perpendicular to each other. Because the loading platform 16 and the rotating rod 13 rotate synchronously, the loading platform 16 always remains parallel to the ground, enabling the rapid transfer of heavy objects into the car 1 and improving safety during handling. When the loading platform 16 is inside the car 1, there is space between the front end of the loading platform 16 and the entrance / exit of the car 1, which is convenient for workers to stand.

[0033] In the specific implementation process, such as Figure 2 and Figure 3 As shown, the lifting assembly includes a first threaded rod 3, which is rotatably connected to the inner wall of the rotating rod 13. The moving block 14 is threadedly connected to the first threaded rod 3. A third motor 36 is fixedly mounted on the upper end of the rotating rod 13, and the output end of the third motor 36 is fixedly connected to the upper end of the first threaded rod 3.

[0034] The first threaded rod 3 is driven to rotate by the third motor 36. The first threaded rod 3 drives the moving block 14 to slide along the inner wall of the rotating rod 13. The moving block 14 drives the connecting shaft 15 and the loading platform 16 to move up and down synchronously, adjusting the position of the loading platform 16 on the rotating rod 13.

[0035] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the synchronous rotation assembly includes a concave limiting rod 31, a limiting block 32 slidably mounted on the limiting rod 31, a second motor 33 fixedly mounted on the inner wall of the limiting block 32, a rotating wheel 34 fixedly mounted on the output end of the second motor 33 and on the connecting shaft 15, a belt 35 mounted on the rotating wheel 34, and a synchronous rod 37 fixedly mounted on the limiting block 32, one end of the synchronous rod 37 being fixedly connected to the outer wall of the moving block 14;

[0036] The second motor 33 rotates synchronously with the first motor 17. The second motor 33 drives the rotating wheel 34 to rotate. The rotating wheel 34 drives another rotating wheel 34 to rotate via the belt 35. The other rotating wheel 34 drives the connecting shaft 15 to rotate along the moving block 14. The connecting shaft 15 drives the loading platform 16 to rotate synchronously. When the moving block 14 moves, it drives the synchronizing rod 37 to move. The synchronizing rod 37 drives the limiting block 32 and the second motor 33 to move synchronously. The limiting rod 31 restricts the movement of the limiting block 32.

[0037] In the specific implementation process, such as Figure 5 and Figure 6 As shown, a support assembly is provided below the loading platform 16. One end of the support assembly is connected to the car 1. The support assembly includes two positioning blocks 6. The two positioning blocks 6 are fixedly connected to the edge of the lower surface of the loading platform 16. A circular rod 61 is fixedly provided on each positioning block 6. A support frame 62 is rotatably provided on each circular rod 61. A positioning shaft 63 is fixedly provided at the end of each support frame 62. Support grooves 64 are opened on both sides of the inner wall of the car 1. Multiple positioning grooves are fixedly provided on the inner wall of each of the two support grooves 64. The positioning shaft 63 is in contact with the inner wall of the positioning groove. A pair of connecting blocks 7 are fixedly provided on the lower surface of the loading platform 16. The inner wall of the connecting blocks 7 is in contact with the inner wall of the positioning shaft 63.

[0038] When loading goods onto the loading platform 16 and after it is located inside the car 1, the support frame 62 is moved laterally along the circular rod 61, causing the positioning shaft 63 at the end of the support frame 62 to leave the connecting block 7. Then, the support frame 62 is rotated so that the end of the support frame 62 enters the support groove 64 on the car 1. The support frame 62 is then pushed laterally so that the positioning shaft 63 at the end of the support frame 62 is inserted into the positioning groove on the inner wall of the support groove 64. The two support frames 62 support the loading platform 16, thereby improving the stability of the loading platform 16.

[0039] Example 2: Based on Example 1, this example also includes:

[0040] In the specific implementation process, such as Figure 6 and Figure 7 As shown, the delivery assembly includes multiple rollers 2 that are laterally rotatably distributed in the middle of the loading platform 16, inclined plates 21 that slide at both ends of the loading platform 16, and moving grooves 22 opened on both sides of the upper surface of the loading platform 16. An adjustment assembly is provided on the inclined plate 21. The adjustment assembly includes a fixed block 5. The fixed block 5 is fixedly connected to the center position of the lower surface of the loading platform 16. A second threaded rod 52 is rotatably provided in the fixed block 5. A lifting rod 51 is slidably provided in the fixed block 5. The two ends of the lifting rod 51 are fixedly connected to the vertical plane of the inclined plate 21 respectively. A rotating ring 53 is fixedly provided at the lower end of the second threaded rod 52. The rotating ring 53 is located outside and below the fixed block 5.

[0041] When the loading platform 16 is located outside the car 1, some light goods can be placed on the roller 2 and pushed into the car 1 to speed up the loading process. When encountering goods that cannot be stacked, the loading platform 16 is first moved below the rotating rod 13, and the goods are moved onto the loading platform 16. Then, the loading platform 16 is moved above the rotating rod 13, and other goods are moved into the car 1 to increase the load capacity of the freight elevator. The rotating ring 53 drives the second threaded rod 52 to rotate, and the second threaded rod 52 drives the lifting rod 51 to move along the fixed block 5. The lifting rod 51 drives the inclined plates at both ends to move. 21 moves upward, and the side of the inclined plate 21 is higher than the surface of the loading platform 16, blocking the goods on the loading platform 16 to prevent them from falling and improving safety. When the trolley is loaded with goods and needs to enter the car 1, the loading platform 16 is moved to the outside of the car 1, the inclined plate 21 is in contact with the ground, and the trolley is pushed from the inclined plate 21 into the moving groove 22 on the loading platform 16. Then, the loading platform 16 moves laterally, so that the loading platform 16 and the trolley with goods are brought into the car 1, avoiding the trolley with goods from colliding with the inner wall of the car 1 when it enters the car 1, thus protecting the car 1.

[0042] In the specific implementation process, such as Figure 2 and Figure 8As shown, each of the four corners of the upper surface of the loading platform 16 is fixed with a bracket 4, and each bracket 4 is rotatably equipped with a stop bar 41. When the trolley is located in the moving groove 22, the stop bar 41 is rotated so that the stop bar 41 is located on the side of the trolley wheel, preventing the trolley from moving on the loading platform 16 and improving safety.

[0043] Specifically, the working principle and operation method of this invention are as follows:

[0044] A loading platform 16 is installed in a high-load freight elevator. During use, the first motor 17 drives the drive shaft 12 to rotate, and the drive shaft 12 drives the rotating rod 13 to rotate. While the rotating rod 13 rotates to the outside of the car 1, the second motor 33 drives the rotating wheel 34 to rotate. The rotating wheel 34 drives another rotating wheel 34 to rotate through the belt 35. The other rotating wheel 34 drives the connecting shaft 15 to rotate along the moving block 14. The connecting shaft 15 drives the loading platform 16 to rotate synchronously, so that the rotating rod 13 rotates 90 degrees to be parallel to the ground outside the elevator. The loading platform 16 is parallel to the rotating rod 13 and is also located outside the car 1.

[0045] When moving heavy objects, the heavy goods are placed on the upper surface of the loading platform 16 by a forklift, and then the rotating rod 13 and the loading platform 16 are rotated into the car 1 to realize the rapid handling of heavy objects.

[0046] When moving goods that cannot be stacked, first move the loading platform 16 below the rotating rod 13, move the goods onto the loading platform 16, then move the loading platform 16 above the rotating rod 13, and then move the other goods into the car 1 to increase the elevator's load capacity and reduce the number of handling operations.

[0047] When the trolley is loaded with goods and enters the elevator, the loading platform 16 is moved to the outside of the car 1, the inclined plate 21 is in contact with the ground, and the trolley is pushed from the inclined plate 21 into the moving slot 22 on the loading platform 16. Then, the loading platform 16 is moved laterally so that the loading platform 16 and the trolley with goods are brought into the car 1, avoiding the trolley with goods from colliding with the inner wall of the car 1 when it enters the car 1.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-load-bearing freight elevator, comprising a car (1), characterized in that: The bottom of the inner wall of the car (1) is symmetrically provided with two limit frames (11). Each of the two limit frames (11) is rotatably provided with a drive shaft (12). Each of the two drive shafts (12) is fixedly provided with a rotating rod (13) at one end. Each of the two rotating rods (13) is slidably provided with a T-shaped moving block (14) on the inner wall of the two rotating rods (13). Each of the two moving blocks (14) is rotatably provided with a connecting shaft (15) at one end. Each of the connecting shafts (15) is fixedly provided with a loading platform (16). Each of the two outer walls of the car (1) is fixedly provided with a first motor (17). The output ends of the two first motors (17) are fixedly connected to the ends of the drive shafts (12). Each of the two rotating rods (13) is provided with a synchronous rotation component and a lifting component. The loading platform (16) is provided with a delivery component.

2. The high-load-bearing freight elevator according to claim 1, characterized in that: The lifting assembly includes a first threaded rod (3), which is rotatably connected to the inner wall of the rotating rod (13). The moving block (14) is threadedly connected to the first threaded rod (3). A third motor (36) is fixedly provided at the upper end of the rotating rod (13), and the output end of the third motor (36) is fixedly connected to the upper end of the first threaded rod (3).

3. A high-load-bearing freight elevator according to claim 1, characterized in that: The synchronous rotation assembly includes a concave limiting rod (31), a limiting block (32) is slidably provided on the limiting rod (31), a second motor (33) is fixedly provided on the inner wall of the limiting block (32), a rotating wheel (34) is fixedly provided on the output end of the second motor (33) and the connecting shaft (15), a belt (35) is sleeved on the rotating wheel (34), a synchronous rod (37) is fixedly provided on the limiting block (32), and one end of the synchronous rod (37) is fixedly connected to the outer wall of the moving block (14).

4. A high-load-bearing freight elevator according to claim 1, characterized in that: The delivery assembly includes multiple rollers (2) that are laterally rotatably distributed in the middle of the loading platform (16), inclined plates (21) that slide at both ends of the loading platform (16), and moving grooves (22) opened on both sides of the upper surface of the loading platform (16). The inclined plates (21) are provided with adjustment components.

5. A high-load-bearing freight elevator according to claim 4, characterized in that: The adjustment assembly includes a fixed block (5), which is fixedly connected to the center of the lower surface of the loading platform (16). A second threaded rod (52) is rotatably provided inside the fixed block (5), and a lifting rod (51) is slidably provided inside the fixed block (5). The two ends of the lifting rod (51) are fixedly connected to the vertical plane of the inclined plate (21) respectively. A rotating ring (53) is fixedly provided at the lower end of the second threaded rod (52), and the rotating ring (53) is located below the outside of the fixed block (5).

6. A high-load-bearing freight elevator according to claim 1, characterized in that: A support assembly is provided below the loading platform (16), and one end of the support assembly is connected to the car (1).

7. A high-load-bearing freight elevator according to claim 6, characterized in that: The support assembly includes two positioning blocks (6), which are fixedly connected to the lower surface edge of the loading platform (16). A circular rod (61) is fixedly provided on each positioning block (6), and a support frame (62) is rotatably provided on each circular rod (61). A positioning shaft (63) is fixedly provided at the end of each support frame (62). Support grooves (64) are provided on both sides of the inner wall of the car (1). Multiple positioning grooves are fixedly provided on the inner walls of the two support grooves (64). The positioning shaft (63) is in contact with the inner wall of the positioning groove.

8. A high-load-bearing freight elevator according to claim 1, characterized in that: A pair of connecting blocks (7) are fixedly provided on the lower surface of the loading platform (16), and the inner wall of the connecting block (7) is in contact with the inner wall of the positioning shaft (63).

9. A high-load-bearing freight elevator according to claim 1, characterized in that: The loading platform (16) has four fixed brackets (4) fixed at the four corners of its upper surface, and each fixed bracket (4) has a stop bar (41) rotatably mounted on it.

10. A high-load-bearing freight elevator according to claim 1, characterized in that: The loading platform (16) is two-thirds the length of the car (1), and the connecting shaft (15) is located in the middle of the loading platform (16).

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