Belt lift with hydraulic safety

Abstract

The utility model discloses a belt lifting platform with hydraulic safety device, including base and table top, the base upper end sets up pruning fork frame, and the table top is arranged to pruning fork frame upside, and pruning fork frame includes two pruning fork arms and gyro wheel, and the right lower corner and right upper corner of two pruning fork arms are rotatoryly connected base and table top respectively, and the left lower corner and left upper corner of two pruning fork arms install gyro wheel, and pruning fork arm side face symmetry rotatoryly connected support arm, and the rotatoryly connected pivot of two support arms in front and back, and the outer surface of left pivot installs several fixed wheels, and the base upper end sets up winding shaft, the utility model discloses through hydraulic safety mechanism can when the belt suddenly breaks, the table top rapidly falls, through one -way throttle valve immediately locks the oil circuit, and the piston rod is locked, makes the table top instantaneous stop falling, fundamentally eliminates the hidden danger of falling accident, provides the ultimate safety guarantee for personnel and article, through the protection mechanism of table top all around can effectively avoid the article slip when lifting or parking.

Description

Technical Field

[0001] This utility model relates to the field of lifting platforms, specifically to a belt lifting platform with a hydraulic safety device. Background Technology

[0002] In industrial production, logistics warehousing, and construction, lifting platforms are increasingly widely used as equipment for vertical transportation of goods or personnel. Traditional lifting platforms mostly use wire ropes, chains, or ordinary belts as transmission components, relying on motors to drive lifting actions. However, these types of lifting platforms have several problems that urgently need to be solved during long-term use:

[0003] Traditional lifting platform transmission components (such as wire ropes, chains, and ordinary belts) are prone to wear and fatigue fracture after long-term load bearing, repeated stretching, or friction. If these components suddenly fail, the platform will rapidly fall under its own weight and the weight of the loaded items, causing severe damage to the items and potentially fatal injury to operators below. Furthermore, traditional lifting platforms typically have an open structure, making them highly susceptible to slippage from the sides due to equipment vibration, operational errors, or platform tilting. Therefore, those skilled in the art have developed a belt-driven lifting platform with a hydraulic safety device to address the problems described in the background section. Utility Model Content

[0004] To solve the above technical problems, this utility model provides a belt lifting platform with a hydraulic safety device, including a base and a platform. A scissor lift is provided on the upper end of the base, and a platform is provided on the upper side of the scissor lift. The scissor lift includes two scissor arms and rollers. The lower right and upper right corners of the two scissor arms are rotatably connected to the base and the platform, respectively. Rollers are installed on the lower left and upper left corners of the two scissor arms.

[0005] The scissor arm is symmetrically connected to the support arm on the side. The front and rear support arms are connected to a rotating shaft. Several fixed wheels are installed on the outer surface of the left rotating shaft. A take-up shaft is set at the top of the base. A motor is installed at the rear end of the take-up shaft. The motor is electrically connected to the controller. Several belts are wound around the outer surface of the take-up shaft. One end of the belt passes through the side of the fixed wheel and is fixedly connected to the right rotating shaft. A hydraulic safety mechanism is installed at the rear end of the rear scissor arm. Protective mechanisms are set around the table.

[0006] Preferably, the hydraulic safety mechanism includes a cylinder and a piston rod. One-way throttle valves are symmetrically installed on the side of the cylinder. Inlet and outlet pipes are installed on the side of the one-way throttle valves. A piston block is set inside the cylinder. A piston rod is installed on the upper end of the piston block. The cylinder and piston rod are rotatably connected to the scissor arm.

[0007] Preferably, the protective mechanism includes a snap-fit ​​mechanism and a protective plate. The snap-fit ​​mechanism is located inside the tabletop, and the protective plate is located on the side of the tabletop. The protective plate has two symmetrically arranged slots, slot one and slot two, on its side.

[0008] Preferably, the protective plate has symmetrically arranged grooved rods on its side, and the grooved rods are fixed to the side of the protective plate. A fixing rod is installed inside the grooved rod, and a slider is slidably connected to the outer surface of the fixing rod. A spring is sleeved on the outer surface of the fixing rod, and the spring is located below the slider.

[0009] Preferably, the locking mechanism includes a cavity and a locking block. The cavity is located inside the table surface. An electromagnet is installed on the inner wall of the cavity and is electrically connected to a controller. A movable block is slidably connected inside the cavity. Springs are symmetrically installed on the side of the movable block. Magnets are embedded on the side of the movable block, and the magnets correspond to the positions of the electromagnets.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] This utility model, through its hydraulic safety mechanism, can immediately lock the oil circuit and piston rod by using a one-way throttle valve when the belt suddenly breaks and the platform falls rapidly, thus stopping the platform from falling instantly and fundamentally eliminating the risk of falling accidents, providing ultimate safety for personnel and goods. The protective mechanism around the platform can effectively prevent items from slipping during lifting or parking, making it especially suitable for transporting fragile, valuable, and irregular items, reducing loss costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this application;

[0013] Figure 2 This is a schematic diagram of the structure of this application;

[0014] Figure 3 This is a structural schematic diagram of the hydraulic safety mechanism of this application;

[0015] Figure 4 This is a schematic diagram of the card receiving mechanism in this application;

[0016] Figure 5 This is a schematic diagram of the grooved rod of this application;

[0017] In the picture:

[0018] 1. Base; 2. Scissor lift holder; 3. Scissor lift arm; 4. Rollers; 5. Support arm; 6. Shaft; 7. Fixed wheel; 8. Rewind shaft; 9. Motor;

[0019] 10. Belt; 11. Hydraulic safety mechanism; 12. Oil cylinder; 13. One-way throttle valve; 14. Inlet / outlet pipe; 15. Piston block; 16. Piston rod; 17. Platform; 18. Protective mechanism; 19. Clamping mechanism;

[0020] 20. Cavity; 21. Electromagnet; 22. Moving block; 23. Spring II; 24. Magnet; 25. Locking block; 26. Protective plate; 27. Slot I; 28. Slot II; 29. ​​Groove rod;

[0021] 30. Fixed rod; 31. Sliding block; 32. Spring 1. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0023] like Figures 1-5As shown, this embodiment provides a belt lifting platform with a hydraulic safety device, including a base 1 and a platform 17. A scissor lift 2 is provided on the upper end of the base 1, and the platform 17 is provided on the upper side of the scissor lift 2. The scissor lift 2 includes two scissor arms 3 and rollers 4. The lower right and upper right corners of the two scissor arms 3 are rotatably connected to the base 1 and the platform 17, respectively. The lower left and upper left corners of the two scissor arms 3 are mounted on the rollers 4. The sides of the scissor arms 3 are symmetrically rotatably connected to support arms 5. The two support arms 5 are rotatably connected to a rotating shaft 6. The outer surface of the left rotating shaft 6 is fitted with... The base 1 is equipped with several fixed wheels 7. A take-up shaft 8 is installed on the upper end of the base 1. A motor 9 is installed at the rear end of the take-up shaft 8. The motor 9 is electrically connected to a controller. Several belts 10 are wound around the outer surface of the take-up shaft 8, and one end of the belts 10 passes through the side of the fixed wheels 7 and is fixedly connected to the right-side rotating shaft 6. A hydraulic safety mechanism 11 is installed at the rear end of the rear scissor arm 3. The hydraulic safety mechanism 11 includes a cylinder 12 and a piston rod 16. One-way throttle valves 13 are symmetrically installed on the side of the cylinder 12. Inlet and outlet pipes 14 are installed on the side of the one-way throttle valves 13. A piston block 15 is installed inside the cylinder 12. A piston rod 16 is mounted on the upper end of the piston block 15. The hydraulic cylinder 12 and the piston rod 16 are rotatably connected to the scissor arm 3. Protective mechanisms 18 are provided around the table surface 17. Each protective mechanism 18 includes a locking mechanism 19 and a protective plate 26. The locking mechanism 19 is located inside the table surface 17 and includes a cavity 20 and a locking block 25. The cavity 20 is located inside the table surface 17, and an electromagnet 21 is installed on the inner wall of the cavity 20. The electromagnet 21 is electrically connected to a controller. A moving block 22 is slidably connected inside the cavity 20. The moving block 22 is symmetrically mounted on its sides. Spring 23 is installed, and magnet 24 is embedded on the side of the movable block 22, with the magnet 24 corresponding to the position of electromagnet 21. Protective plate 26 is set on the side of table 17. The side of protective plate 26 has symmetrical slots 27 and 28. Grooved rods 29 are symmetrically set on the side of protective plate 26 and fixed to the side of protective plate 26. Fixed rod 30 is installed inside the grooved rod 29. The outer surface of fixed rod 30 is slidably connected to slider 31. Spring 32 is sleeved on the outer surface of fixed rod 30 and is located below slider 31.

[0024] The working principle of this utility model is as follows: When it is necessary to protect the items, the electromagnet 21 is energized to generate magnetic force. The electromagnet 21 attracts the magnet 24 to move. The magnet 24 drives the moving block 22 to move and compress the second spring 23. At the same time, the moving block 22 drives the locking block 25 to leave the first slot 27, so that the protective plate 26 loses its limiting force. The first spring 32 resets and pushes the slider 31 to rise. The slider 31 drives the protective plate 26 to rise, so that the four protective plates 26 rise and block the side of the table 17. The four protective plates 26 protect the items on the table 17 and prevent the items from falling off the table 17. Then, the electromagnet 21 is de-energized and loses its magnetic force. The second spring 23 pushes the moving block 22 and the locking block 25 to reset. The locking block 25 inserts into the second slot 28 to fix the position of the protective plate 26.

[0025] Motor 9 drives take-up shaft 8 to rotate and wind belt 10. Belt 10 pulls support arm 5 to unfold. Support arm 5 pushes scissor arm 3 to deform, thereby pushing table 17 to rise. Motor 9 drives take-up shaft 8 to rotate and lengthen belt 10. Table 17 slowly descends under its own weight, causing support arm 5 and scissor arm 3 to deform, thereby causing table 17 to descend.

[0026] When belt 10 suddenly breaks, platform 17 will drop rapidly, scissor arm 3 will deform, causing piston rod 16 and piston block 15 connected to scissor arm 3 to retract rapidly, attempting to quickly squeeze out the oil in cylinder 12. At this time, one-way throttle valve 13 will immediately activate, completely locking the oil circuit and preventing hydraulic oil from flowing out, thereby firmly locking piston rod 16 in the current position. Platform 17 will stop dropping instantly and be supported by hydraulic safety mechanism 11 to avoid an accident.

[0027] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A belt conveyor lifting platform with a hydraulic safety device, comprising a base (1) and a platform (17), characterized in that, The base (1) is provided with a scissor lift (2) at the upper end, and a table (17) is provided on the upper side of the scissor lift (2). The scissor lift (2) includes two scissor arms (3) and rollers (4). The lower right corner and upper right corner of the two scissor arms (3) are rotatably connected to the base (1) and the table (17) respectively. The lower left corner and upper left corner of the two scissor arms (3) are equipped with rollers (4). The scissor arm (3) is symmetrically connected to the support arm (5) on the side. The two support arms (5) are connected to the rotating shaft (6) on the front and rear sides. Several fixed wheels (7) are installed on the outer surface of the left rotating shaft (6). A take-up shaft (8) is set at the upper end of the base (1). A motor (9) is installed at the rear end of the take-up shaft (8). The motor (9) is electrically connected to the controller. Several belts (10) are wound on the outer surface of the take-up shaft (8). One end of the belt (10) passes through the side of the fixed wheel (7) and is fixedly connected to the right rotating shaft (6). A hydraulic safety mechanism (11) is installed at the rear end of the rear scissor arm (3). A protective mechanism (18) is set around the table (17).

2. The belt lifting platform with hydraulic safety device according to claim 1, characterized in that, The hydraulic safety mechanism (11) includes a cylinder (12) and a piston rod (16). A one-way throttle valve (13) is symmetrically installed on the side of the cylinder (12). An inlet and outlet pipe (14) is installed on the side of the one-way throttle valve (13). A piston block (15) is set inside the cylinder (12). A piston rod (16) is installed on the upper end of the piston block (15). The cylinder (12) and the piston rod (16) are rotatably connected to the scissor arm (3).

3. A belt lifting platform with a hydraulic safety device according to claim 1, characterized in that, The protective mechanism (18) includes a snap-fit ​​mechanism (19) and a protective plate (26). The snap-fit ​​mechanism (19) is located inside the tabletop (17), and the protective plate (26) is located on the side of the tabletop (17). The protective plate (26) has two symmetrical slots (27 and 28) on its side.

4. A belt conveyor with a hydraulic safety device according to claim 3, characterized in that, The protective plate (26) has symmetrical grooved rods (29) on its side, and the grooved rods (29) are fixed to the side of the protective plate (26). A fixing rod (30) is installed inside the grooved rod (29). A slider (31) is slidably connected to the outer surface of the fixing rod (30). A spring (32) is sleeved on the outer surface of the fixing rod (30), and the spring (32) is located below the slider (31).

5. A belt conveyor with a hydraulic safety device according to claim 3, characterized in that, The latching mechanism (19) includes a cavity (20) and a latching block (25). The cavity (20) is located inside the table (17). An electromagnet (21) is installed on the inner wall of the cavity (20), and the electromagnet (21) is electrically connected to the controller. A moving block (22) is slidably connected inside the cavity (20). Springs (23) are symmetrically installed on the side of the moving block (22). A magnet (24) is embedded on the side of the moving block (22), and the magnet (24) corresponds to the position of the electromagnet (21).

Images