Safety protection device and hydraulic lifting platform containing the same

Abstract

The present invention discloses a safety protection device and a hydraulic lifting platform including the same, wherein the safety protection device includes a platform for placing plates, and the safety protection device also includes a plurality of blocking mechanisms, which are respectively arranged at both ends of the platform, and the blocking mechanism includes a block, which includes a blocking end, a first hinged end and a force-bearing end connected in sequence from top to bottom, wherein the first hinged end is hinged to the lifting platform, and the blocking end can swing and extend to the top of the top surface of the platform or retract to the bottom of the top surface of the platform. The hydraulic lifting platform includes the safety protection device as described above. The present invention effectively avoids collisions with operators during loading, unloading and transporting plates, thereby improving safety and efficiency. It greatly reduces the occurrence of plate breakage and scrapping caused by falling plates, which not only ensures the personal safety of operators but also guarantees product quality.

Description

Technical Field

[0001] The invention relates to a safety protection device and a hydraulic lifting platform comprising the same. Background Art

[0002] A hydraulic lift is a multifunctional lifting and loading and unloading machine with a lifting height ranging from 1 to 30 meters. Customized versions are available upon request. It is suitable for various aerial operations and maintenance tasks in factories, automated warehouses, parking lots, municipal administration, docks, construction, renovation, logistics, power generation, transportation, petroleum, chemical, hotels, stadiums, industrial and mining industries, and enterprises. The lift's lifting system is hydraulically driven, hence the name hydraulic lift.

[0003] In the copper-clad laminate industry, hydraulic lift trolleys are a tool that significantly reduces labor intensity and improves operational efficiency. However, their use is not always satisfactory. Operator negligence during lifting, loading, and operation can lead to deviations in the lift height. While small deviations are acceptable, large height deviations can inevitably cause sheet metal to fall or personnel to collide, and the trolley cannot be effectively secured, potentially causing collisions with operators during loading and unloading. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the hydraulic lifting platform in the prior art such as falling plates or collisions with people, and to provide a safety protection device and a hydraulic lifting platform including the same.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A safety protection device includes a platform for placing plates. Its characteristic is that the safety protection device also includes a plurality of blocking mechanisms, which are respectively arranged at both ends of the platform. The blocking mechanism includes a block, and the block includes a blocking end, a first hinged end and a force-bearing end connected in sequence from top to bottom. The first hinged end is hinged to the lifting platform, and the blocking end can swing and extend above the top surface of the platform or retract below the top surface of the platform.

[0007] In this solution, the aforementioned structure prevents the plates from falling through the blocking end of the block, eliminating the possibility of plates sliding or falling due to platform height errors. This effectively prevents collisions with workers during loading, unloading, and transporting plates, improving safety and efficiency. Furthermore, it significantly reduces the risk of plate breakage and scrap caused by falling plates, not only protecting workers but also indirectly ensuring plate quality and avoiding unnecessary waste.

[0008] Preferably, the blocking mechanism also includes a swing arm and a connecting rod, the swing arm includes a top end, a second hinged end and a force-applying end connected in sequence from left to right, the top of the connecting rod is hinged to the force-bearing end, the bottom of the connecting rod is hinged to the top end, and the second hinged end is hinged to the platform.

[0009] In this solution, the above-mentioned structural form is adopted, and the unloading of the plate is achieved by transmitting the force through the linkage of the swing arm and the connecting rod. It is easy to use and very time-saving and labor-saving.

[0010] Preferably, the swing arm is located at the bottom of the platform, and the top end is in the shape of an arc.

[0011] In this solution, the above-mentioned structural form is adopted, which makes it convenient for the staff to apply force to the swing arm. At the same time, it prevents the swing arm from touching the bottom of the platform, and the swing range of the jacking end is large.

[0012] Preferably, the safety protection device also includes a control device, a sensor and several driving mechanisms, the several driving mechanisms correspond one-to-one to the several blocking mechanisms, and the driving mechanism is connected to the force-bearing end, the sensor is connected to the end of the platform and is used to detect the discharge position of the plate, the input end of the control device is electrically connected to the sensor, and the output end of the control device is electrically connected to the driving mechanism.

[0013] In this solution, the above-mentioned structural form is adopted to realize automatic control through the control device, which is convenient for management and operation.

[0014] In addition, the blocking mechanism is automatically controlled by the driving mechanism, which eliminates the need for manual operation by the staff, greatly reduces the deviation problem caused by the staff's operation, and improves the safety and use efficiency of the safety protection device.

[0015] Preferably, the platform is provided with an electric roller, the top of the electric roller is used to place the plate, the input end of the control device is electrically connected to the sensor, and the output end of the control device is electrically connected to the electric roller.

[0016] In this solution, the above-mentioned structural form is adopted to realize automatic unloading through the electric roller, which greatly reduces the labor intensity of the staff and improves the safety and utilization efficiency of the hydraulic lifting platform.

[0017] Preferably, the driving mechanism is a cylinder.

[0018] A hydraulic lifting platform is characterized in that it includes the safety protection device as described above.

[0019] In this solution, the above-mentioned structural form effectively prevents workers from being hit during loading, unloading, and transporting panels, improving safety and efficiency. At the same time, it greatly reduces the occurrence of panel breakage and scrap caused by falling panels, ensuring not only the personal safety of workers but also product quality.

[0020] Preferably, the hydraulic lifting platform also includes a lifting mechanism, and the safety protection device also includes a control device and a sensor, the sensor is connected to the end of the platform and is used to detect the discharge position of the plate, the input end of the control device is electrically connected to the sensor, and the output end of the control device is electrically connected to the lifting mechanism, and the lifting mechanism is connected to the bottom of the platform.

[0021] In this solution, the above-mentioned structural form is adopted, and the height of the control platform is automatically adjusted by the lifting mechanism, so that the plates can be placed at the position where they need to be placed in the material rack, making it convenient for the staff to unload the plates.

[0022] Preferably, the lifting mechanism includes a hydraulic motor and a lifting rod, the lifting rod is connected to the bottom of the lifting platform, the hydraulic motor is connected to the lifting rod, and the hydraulic motor is electrically connected to the control device.

[0023] In this solution, the above structure is adopted to make the platform 1 move up and down with high stability through the hydraulic motor and the lifting rod. At the same time, the lifting mechanism has a simple structure.

[0024] Preferably, the control device is a PLC controller.

[0025] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0026] The positive progress effect of the present invention is:

[0027] The safety protection device and the hydraulic lifting platform incorporating the same prevent falling plates through the blocking end of the block, effectively preventing workers from being hit during loading, unloading, and transporting plates, thereby improving safety and efficiency. Furthermore, the device significantly reduces the risk of plate breakage and scrap caused by falling plates, ensuring both worker safety and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the structure of a hydraulic lifting platform according to an embodiment of the present invention.

[0029] Figure 2 This is a schematic structural diagram of the hydraulic lifting platform according to an embodiment of the present invention when subjected to force.

[0030] Figure 3 This is a schematic diagram of the hydraulic lifting platform in use according to an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] Platform 1

[0033] Electric drum 11

[0034] Blocking mechanism 2

[0035] Block 21

[0036] Blocking end 211

[0037] First hinge end 212

[0038] Force end 213

[0039] Connecting rod 22

[0040] Swing arm 23

[0041] Top end 231

[0042] Second hinge end 232

[0043] Force end 233

[0044] Control device 3

[0045] Safety protection device 10

[0046] Lifting mechanism 20

[0047] Lifting rod 201

[0048] Hydraulic motor 202

[0049] Fuel tank 203

[0050] Wheel 30

[0051] Plate 40

[0052] Rack 50

[0053] Track 60 DETAILED DESCRIPTION

[0054] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0055] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0056] like Figure 1 、 Figure 2 and Figure 3 As shown, the hydraulic lifting platform of the embodiment of the present invention includes a safety protection device 10. The safety protection device 10 includes a platform 1 and a plurality of blocking mechanisms 2. The platform 1 is used to place a plate 40. The plurality of blocking mechanisms 2 are respectively arranged at both ends of the platform 1. The blocking mechanisms 2 include a block 21. The block 21 includes a blocking end 211, a first hinged end 212, and a force-bearing end 213 connected in sequence from top to bottom. The first hinged end 212 is hinged to the platform 1. The blocking end 211 can swing and extend above the top surface of the platform 1 or retract below the top surface of the platform 1.

[0057] When the blocking mechanism 2 is in its initial state, the blocking end 211 extends out of the top surface of the platform 1 and extends upward along the top surface of the platform 1 to above the top surface of the platform 1. The plate 40 placed on the platform 1 will be abutted by the blocking end 211, thereby preventing the plate 40 from falling. When the blocking mechanism 2 is subjected to force, that is, the force-bearing end 213 is subjected to an upward force, the force-bearing end 213 will move upward. Since the first hinged end 212 is hinged to the platform 1, the blocking end 211 will move downward, causing the blocking end 211 to retract to the top surface of the platform 1 and be located below the top surface of the platform 1, thereby facilitating the unloading of the plate 40 on the platform 1. The blocking end 211 of the stopper 21 can prevent the plate 40 from falling, eliminating the phenomenon of the plate 40 sliding or falling due to the height error of the platform 1. It effectively avoids the collision of workers during the loading, unloading and transportation of the plate 40, thereby improving safety and efficiency. At the same time, the occurrence of damage and scrapping of the plate 40 due to the plate 40 falling is greatly reduced, which not only ensures the personal safety of the workers, but also indirectly ensures the quality of the plate 40 and avoids unnecessary waste. Preferably, the torque of the force-bearing end 213 located below the first hinge end 212 is greater than the torque of the blocking end 211 located above the first hinge end 212, so that the blocking mechanism 2 will remain in the initial state when no force is applied.

[0058] The blocking mechanism 2 may further include a connecting rod 22 and a swing arm 23. The swing arm 23 includes a lifting end 231, a second hinged end 232, and a force-applying end 233, which are sequentially connected from left to right. The top of the connecting rod 22 is hinged to the force-bearing end 213, the bottom of the connecting rod 22 is hinged to the lifting end 231, and the second hinged end 232 is hinged to the platform 1. When unloading the plates 40 on the platform 1, the operator applies a downward force on the force-applying end 233, causing the force-applying end 233 to move downward. Since the second hinged end 232 is hinged to the platform 1, the lifting end 231 will move upward and lift the connecting rod 22. The connecting rod 22 will move upward and drive the force-bearing end 213 to move upward as well, causing the blocking end 211 to retract to the top surface of the platform 1 and be located below the top surface of the platform 1, thereby facilitating the unloading of the plates 40 on the platform 1. The unloading of the plate 40 is achieved by the linkage transmission of the force through the swing arm 23 and the connecting rod 22, which is convenient to use and very time-saving and labor-saving.

[0059] The swing arm 23 is located at the bottom of the platform 1 and can be arranged in a horizontal direction. The force-applying end 233 can extend to the side or corner of the platform 1, making it easier for staff to apply force to the swing arm 23. The lifting end 231 can be in the shape of an arc. When the lifting end 231 moves upward, it avoids touching the bottom of the platform 1 and has a large swing range.

[0060] The blocking mechanism 2 may also include two rectangular plates (not shown in the figure), which are respectively welded to the ends of the platform 1, and the spacing between the two rectangular plates is preferably such that a stopper 21 can be installed. The stopper 21 is hinged to the two rectangular plates via a hinge shaft. The connecting rod 22 may be a turnbuckle, and the bottom of the stopper 21 is drilled with a hole and hinged to the top of the turnbuckle. Two square plates are welded to the bottom of the platform 1. The second hinge end 232 and the force-applying end 233 may be an L-shaped circular shaft, which passes through and is rotatably connected to the two square plates. The lifting end 231 may be an arc-shaped plate, one end of which is hinged to the bottom of the turnbuckle, and the other end of which is inserted between the two square plates and welded to the bottom of the circular shaft. A round ball is welded to the top of the circular shaft, which facilitates the operator to grasp it. The safety protection device 10 has a simple structure and is easy to process and manufacture.

[0061] The basket screws can be made of M6 galvanized basket screws, and preferably M6 stainless steel basket screws. The round shaft can be made of Ф10 galvanized parts, and preferably Ф10 stainless steel parts. The rectangular plate can be made of 10mm iron plate, and preferably 10mm stainless steel plate. The square plate can be made of 10mm iron plate, and preferably 10mm stainless steel plate. The sphere can be made of stainless steel. The curved plate can be made of 10mm iron plate, and preferably 10mm stainless steel plate. The block 21 can be made of 15mm iron plate, and preferably 15mm stainless steel plate. The articulated shaft can be made of galvanized parts, and preferably stainless steel parts. This enables the safety protection device 10 to effectively prevent rust and corrosion, greatly extending the service life of the hydraulic lifting platform.

[0062] The safety device 10 may also include two angle irons, welded to either side of the blocking mechanism 2, that is, to either side of the rectangular plate. Since the safety device 10 is directly exposed beneath the platform 1 after installation, the two angle irons are welded to either side of the device to effectively prevent damage from bumps and collisions. The angle irons can be 4 mm thick.

[0063] The number of blocking mechanisms 2 in this embodiment is not limited, and the number of blocking mechanisms 2 can be two, with two blocking mechanisms 2 respectively provided at both ends of the platform 1. The number of blocking mechanisms 2 can be four or even more, with multiple blocking mechanisms 2 provided at each end of the platform 1. In the multiple blocking mechanisms 2 located at the same end, a longer circular shaft can pass through multiple square plates and be connected to multiple curved plates. The swing of the block 21 can be manually applied by the operator, so that only one hand is required to hold the ball and swing it to achieve synchronous swinging of multiple curved plates. This has a simple structure and is easy to use, while greatly improving the safety of the safety protection device 10.

[0064] The hydraulic lift platform may also include a lifting mechanism 20 connected to the bottom of the platform 1 and used to drive the platform 1 to move up and down. When the plates 40 on the platform 1 need to be placed on the rack 50, the lifting mechanism 20 adjusts the height of the platform 1 so that the plates 40 can be placed in the desired position in the rack 50, making it easier for workers to unload the plates 40.

[0065] The safety protection device 10 may include a control device 3 , which is electrically connected to the lifting mechanism 20 . The staff can control the switch of the lifting mechanism 20 through the control device 3 , thereby adjusting the height of the control platform 1 .

[0066] The safety protection device 10 may also include a sensor connected to the end of the platform 1 and used to detect the unloading position of the plate 40. The input end of the control device 3 is electrically connected to the sensor, and the output end of the control device 3 is electrically connected to the lifting mechanism 20. The control device 3 is used to receive the detection signal sent by the sensor and control the opening and closing of the lifting mechanism 20. The sensor is used to detect the specified position of each layer of the material rack 50, so that the top surface of the platform 1 is flush with the corresponding layer to be unloaded. The sensor then sends a detection signal to the control device 3. After receiving the detection signal, the control device 3 controls the opening of the lifting mechanism 20, thereby accurately controlling the top surface of the platform 1 to be flush with the corresponding layer to be unloaded. This improves the accuracy of the lifting and positioning, eliminates the need for workers to press the operation button, reduces the mechanical repetitive work of workers, alleviates workers' fatigue, and greatly reduces the positioning deviation caused by manual operation. Preferably, the sensor can be a slow reflection photoelectric switch, more preferably a through-beam photoelectric switch. Sensors are also provided at the specified position of each layer of the material rack 50.

[0067] The lifting mechanism 20 may include a hydraulic motor 202 and a lifting rod 201. The lifting rod 201 is connected to the bottom surface of the platform 1. The hydraulic motor 202 is connected to the lifting rod 201, and the hydraulic motor 202 is electrically connected to the control device 3. The oil tank 203 is connected to the lifting rod 201 through the hydraulic motor 202 and can provide the required oil to the lifting rod 201, thereby driving the platform 1 in the vertical direction. At the same time, the structure is simple, and the lifting and moving stability of the platform 1 is high. Preferably, the control device 3 may be a PLC controller.

[0068] The lifting mechanism 20 is provided with wheels 30 on both sides of its bottom. One wheel 30 is a concave wheel that moves on a track 60 laid on the ground, while the other wheel 30 is a rubber wheel that moves directly on the ground without the track 60. Installing tracks 60 in frequently transported transfer areas can effectively prevent inertial impact caused by the transfer of the sheet materials 40. Preferably, the concave wheels can be made of iron.

[0069] The safety protection device 10 may also include a plurality of drive mechanisms (not shown), each corresponding to a plurality of blocking mechanisms 2. The drive mechanisms are connected to the force-bearing end 213. A sensor is connected to the end of the platform 1 and is used to detect the unloading position of the plate 40. The input end of the control device 3 is electrically connected to the sensor, and the output end of the control device 3 is electrically connected to the drive mechanism. The control device 3 receives the detection signal emitted by the sensor and is used to control the disconnection of the drive mechanism. When the top surface of the platform 1 is flush with the corresponding layer of the material rack 50 to be unloaded, the sensor will send a detection signal to the control device 3. After receiving the detection signal, the control device 3 will control the opening of the drive mechanism. The drive mechanism will apply a certain upward force to the force-bearing end 213, causing the force-bearing end 213 to move upward, and the blocking end 211 will move downward and retract below the top surface of the platform 1, thereby facilitating the unloading of the plate 40 on the platform 1. The blocking mechanism 2 is automatically controlled by the drive mechanism, eliminating the need for manual operation by the staff, greatly reducing the deviation problem caused by the staff's operation, and improving the safety and efficiency of the hydraulic lift. Preferably, the driving mechanism may be a cylinder.

[0070] The platform 1 may be provided with a motorized roller 11, the top of which is used to place the sheet material 40. The input end of the control device 3 is electrically connected to the sensor, and the output end of the control device 3 is electrically connected to the motorized roller 11. The control device 3 receives the detection signal from the sensor and controls the disconnection of the motorized roller 11. When the top surface of the platform 1 is flush with the corresponding level of the material rack 50 to be discharged, the sensor will send a detection signal to the control device 3. After receiving the detection signal, the control device 3 will control the opening of the motorized roller 11. The sheet material 40 located on the motorized roller 11 will move on the motorized roller 11 and enter the corresponding level of the material rack 50 to be discharged. The realization of automated unloading greatly reduces the labor intensity of the staff and improves the safety and efficiency of the hydraulic lifting platform.

[0071] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A hydraulic lifting platform, characterized in that: It includes a safety protection device, which includes a platform for placing plates; The safety protection device further includes a plurality of blocking mechanisms, each of which is provided at both ends of the platform. The blocking mechanism includes a block, and the block includes a blocking end, a first hinged end, and a force-bearing end connected in sequence from top to bottom. The first hinged end is hinged to the platform, and the blocking end can swing and extend above the top surface of the platform or retract below the top surface of the platform. The safety protection device further includes a control device, a sensor and a plurality of drive mechanisms, wherein the plurality of drive mechanisms correspond to the plurality of blocking mechanisms on a one-to-one basis, and the drive mechanism is connected to the force-bearing end, the sensor is connected to the end of the platform and is used to detect the unloading position of the plate, the input end of the control device is electrically connected to the sensor, and the output end of the control device is electrically connected to the drive mechanism; The hydraulic lifting platform also includes a lifting mechanism. The sensor is connected to the end of the platform and is used to detect the unloading position of the plate. The input end of the control device is electrically connected to the sensor, and the output end of the control device is electrically connected to the lifting mechanism. The lifting mechanism is connected to the bottom of the platform.

2. The hydraulic lifting platform according to claim 1, characterized in that: The blocking mechanism also includes a swing arm and a connecting rod, the swing arm includes a top end, a second hinged end and a force-applying end connected in sequence from left to right, the top of the connecting rod is hinged to the force-bearing end, the bottom of the connecting rod is hinged to the top end, and the second hinged end is hinged to the platform.

3. The hydraulic lifting platform according to claim 2, characterized in that: The swing arm is located at the bottom of the platform, and the top end is in an arc shape.

4. The hydraulic lifting platform according to claim 1, characterized in that: The platform is provided with an electric roller, the top of the electric roller is used for placing the plate, the input end of the control device is electrically connected to the sensor, and the output end of the control device is electrically connected to the electric roller.

5. The hydraulic lifting platform according to claim 1, characterized in that: The driving mechanism is a cylinder.

6. The hydraulic lifting platform according to claim 1, characterized in that: The lifting mechanism includes a hydraulic motor and a lifting rod, the lifting rod is connected to the bottom of the platform, the hydraulic motor is connected to the lifting rod, and the hydraulic motor is electrically connected to the control device.

7. The hydraulic lifting platform according to claim 6, characterized in that: The control device is a PLC controller.

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