Lifting transfer platform

Abstract

The utility model discloses a lifting transfer platform, and relates to the technical field of transfer equipment, the lifting transfer platform comprises a base, a lifting platform, a protection assembly and a lifting driving device, the base is provided with a lifting channel, and the lifting channel is provided with at least two feeding and discharging positions; the at least two feeding and discharging positions comprise the first feeding and discharging position and the second feeding and discharging position located below the first feeding and discharging position, the lifting table is movably arranged in the lifting channel in the vertical direction, the protection assembly comprises at least one protection door and a door opening and closing driving device, and the protection door is arranged on the base and opposite to the first feeding and discharging position. The door opening and closing driving device is in driving connection with the protective door to drive the protective door to be opened or closed, and the lifting driving device is in driving connection with the lifting table to drive the lifting table to move in the vertical direction. According to the technical scheme, the protective door can be automatically opened and closed through the door opening and closing driving device, and the feeding efficiency and the discharging efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer equipment, in particular to a lifting transfer platform. Background Art

[0002] A lift is a type of lifting machinery used to transport people or objects vertically. It's also used in logistics systems like factories and automated warehouses. For safety reasons, a safety door is installed on the outside of the lift to ensure the safety of workers. In related technologies, the safety door requires manual latching to open the door, then manually closing and latching it after use. This manual operation is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0003] The main purpose of the utility model is to provide a lifting and transferring platform, aiming to at least solve the problem in the related art that the safety door of the lifting platform needs to be opened and latched manually when in use, resulting in low efficiency.

[0004] To achieve the above-mentioned purpose, the present invention provides a lifting and transferring platform, comprising:

[0005] The base has a lifting channel, the lifting channel has at least two loading and unloading positions, the at least two loading and unloading positions include a first loading and unloading position and a second loading and unloading position located below the first loading and unloading position;

[0006] A lifting platform for placing materials, the lifting platform is arranged in the lifting channel in an upward and downward direction, and can reach each loading and unloading position in its movable range;

[0007] A protection assembly, comprising at least one protection door and a door opening and closing drive device, wherein the protection door is disposed on the base and is disposed opposite to the first loading and unloading position, and the door opening and closing drive device is drivingly connected to the protection door to drive the protection door to open or close;

[0008] The lifting drive device is connected to the lifting platform to drive the lifting platform to move in the up and down directions.

[0009] In one embodiment, the protection assembly includes two protection doors, one of the two protection doors is arranged opposite to the first loading and unloading position, and the other is arranged opposite to the second loading and unloading position;

[0010] The number of the door opening and closing driving devices is correspondingly set to two.

[0011] In one embodiment, the base comprises:

[0012] Supporting body;

[0013] A lower platform is provided on one side of the support body in a horizontal direction corresponding to the second loading and unloading position, and the lifting channel is formed above the lower platform; and

[0014] An upper platform is provided on the other side of the supporting body corresponding to the first loading and unloading position;

[0015] Wherein, the two protective doors are respectively arranged on the lower platform and the upper platform.

[0016] In one embodiment, the lifting platform includes a bottom plate movably arranged in the lifting channel along the up and down direction, and the bottom plate is used for placing materials;

[0017] An accommodating groove communicating with the lower end of the lifting channel is provided on the upper side of the lower platform, and the accommodating groove is used to accommodate the bottom plate.

[0018] In one embodiment, the protection assembly further includes a protection railing provided on the lower platform, and the protection railing is arranged around the outer side of the lifting channel.

[0019] In one embodiment, the guardrail is provided with a long sliding groove extending in the up-down direction;

[0020] The lifting platform is provided with a rolling portion, and the lifting platform is slidably connected to the long sliding groove through the rolling portion.

[0021] In one embodiment, the protective door includes a door frame provided on the base, and a door body rotatably provided in the door frame along an axis extending in an up-down direction;

[0022] The door opening and closing drive device comprises:

[0023] A rotating shaft is rotatably arranged on the door frame along an axis extending in an up-down direction;

[0024] a connecting member, one end of which is fixedly connected to the rotating shaft;

[0025] a slider, rotatably connected to the other end of the connecting member along an axis extending in the up-down direction, and the slider is slidably arranged on the door body in a horizontal direction; and

[0026] A driving member is provided on the door frame and is drivingly connected to the rotating shaft to drive the rotating shaft to rotate.

[0027] In one embodiment, the lifting drive device includes:

[0028] a hydraulic cylinder, disposed on the base;

[0029] A transmission gear, which is arranged at the output end of the hydraulic cylinder and rotates in a horizontal direction;

[0030] A transmission chain is meshed with the upper end of the transmission gear, and one end of the transmission chain is fixedly connected to the base, and the other end is fixedly connected to the lifting platform.

[0031] In one embodiment, the lifting and transfer platform also includes a detection device and a control device, wherein the detection device is used to detect the internal and external information of the lifting passage, and the control device is electrically connected to the lifting drive device and the door opening and closing drive device to control the lifting drive device and the door opening and closing drive device according to the internal and external information of the lifting passage.

[0032] In one embodiment, the internal and external information of the lifting passage includes position information of the lifting platform and / or material information on the lifting platform and / or personnel information inside and outside the lifting passage.

[0033] The lifting platform is configured to move upward and downward in a direction relative to the lifting passage, and the lifting platform is configured to move upward and downward in a direction relative to the lifting passage, and the lifting platform is configured to move upward and downward in a direction relative to the lifting passage. The lifting platform is configured to move upward and downward in a direction relative to the lifting passage, and the lifting platform is configured to move upward and downward in a direction relative to the lifting passage. The lifting platform is configured to move upward and downward in a direction relative to the lifting passage, and the lifting platform is configured to move upward and downward in a direction relative to the lifting passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the lifting and transferring platform provided by the utility model;

[0036] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0037] Figure 3 for Figure 1 Schematic diagram of the planar structure of the medium lifting transfer platform;

[0038] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0039] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure of the middle lifting and transfer platform from another perspective;

[0040] Figure 6 for Figure 5 A partial enlarged view of point C in the middle.

[0041] Description of Figure Numbers:

[0042] 100. Lifting and transfer platform; 1. Base; 101. Lifting channel; 11. Support body; 12. Lower platform; 121. Accommodating slot; 13. Upper platform; 2. Lifting platform; 21. Bottom plate; 22. Rolling part; 3. Protective component; 31. Protective door; 311. Door frame; 312. Door body; 32. Door opening and closing drive device; 321. Rotating shaft; 322. Connecting part; 323. Slider; 324. Drive part; 33. Guardrail; 331. Long slide; 4. Lifting drive device; 41. Hydraulic cylinder; 42. Transmission gear; 43. Transmission chain.

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0046] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] A lift is a type of lifting machinery used to transport people or objects vertically. It's also used in logistics systems like factories and automated warehouses. For safety reasons, a safety door is installed on the outside of the lift to ensure the safety of workers. In related technologies, the safety door requires manual latching to open the door, then manually closing and latching it after use. This manual operation is time-consuming, labor-intensive, and inefficient.

[0048] The main purpose of the utility model is to provide a lifting and transferring platform, aiming to at least solve the problem in the related art that the safety door of the lifting platform needs to be opened and latched manually when in use, resulting in low efficiency.

[0049] See also Figure 1 and Figure 2 In one embodiment of the present utility model, the lifting and transferring platform 100 includes a base 1, a lifting platform 2, a protective component 3 and a lifting drive device 4. The base 1 has a lifting channel 101, and the lifting channel 101 has at least two loading and unloading positions. The at least two loading and unloading positions include a first loading and unloading position and a second loading and unloading position located below the first loading and unloading position. The lifting platform 2 is used for placing materials. The lifting platform 2 is movably arranged in the lifting channel 101 along the up and down directions, and can reach each of the loading and unloading positions in its movable stroke. The protective component 3 includes at least one protective door 31 and a switching door drive device 32. The protective door 31 is arranged on the base 1 and is arranged opposite to the first loading and unloading position. The switching door drive device 32 is driven and connected to the protective door 31 to drive the protective door 31 to open or close. The lifting drive device 4 is driven and connected to the lifting platform 2 to drive the lifting platform 2 to move along the up and down directions.

[0050] In the technical solution of the present invention, the lifting platform 2 is movably arranged in the lifting channel 101 along the up and down directions, and can reach each of the loading and unloading positions in its movable stroke. The protective assembly 3 includes at least one protective door 31 and a door opening and closing drive device 32. The protective door 31 is arranged on the base 1 and is arranged opposite to the first loading and unloading position. The door opening and closing drive device 32 is driven and connected to the protective door 31 to drive the protective door 31 to open or close. The lifting drive device 4 is driven and connected to the lifting platform 2 to drive the lifting platform 2 to move in the up and down directions. In this way, when in use, the lifting drive device 4 is used to automatically drive the lifting platform 2 to move in the up and down directions, driving the materials on the lifting platform 2 to reach each of the loading and unloading positions for loading or unloading. At the same time, the protective door 31 is correspondingly arranged at the first loading and unloading position located above to reduce the possibility of staff falling into the lifting channel 101, play a protective role, and can automatically realize the opening and closing of the protective door 31 by the door opening and closing drive device 32, thereby improving the efficiency of loading and unloading.

[0051] Among them, the loading and unloading positions are not limited to two, and can be three or more. For example, one or more loading and unloading positions can be set between the first loading and unloading position and the second loading and unloading position, and one or more loading and unloading positions can also be set above the first loading and unloading position.

[0052] It should be noted that the protective door 31 is not limited to being set up as one. When the second loading and unloading position is located at the bottom and the number of the loading and unloading positions is greater than two, the other loading and unloading positions including the first loading position should be provided with the protective door 31 to prevent staff or other tools from falling into the lifting channel 101; correspondingly, the opening and closing door drive device 32 should also be provided in plurality to respectively drive the opening or closing of each protective door 31 to improve the overall working efficiency of the lifting and transfer platform 100.

[0053] The door opening and closing drive device 32 has various forms. In order to realize the automatic opening and closing of the protective door 31, in the embodiment of the present utility model, please refer to Figure 1 and Figure 2The protective door 31 includes a door frame 311 arranged on the base 1, and a door body 312 rotatably arranged in the door frame 311 along an axis extending in the up-down direction. The door opening and closing drive device 32 includes a rotating shaft 321, a connecting member 322, a slider 323 and a driving member 324. The rotating shaft 321 is rotatably arranged on the door frame 311 along an axis extending in the up-down direction. One end of the connecting member 322 is fixedly connected to the rotating shaft 321, and the slider 323 is rotatably connected to the other end of the connecting member 322 along an axis extending in the up-down direction. The slider 323 is slidably arranged on the door body 312 in a horizontal direction. The driving member 324 is arranged on the door frame 311 and is drivingly connected to the rotating shaft 321 to drive the rotating shaft 321 to rotate. In this way, when the door body 312 needs to be automatically opened or closed, the driving member 324 is started to drive the rotating shaft 321 to rotate. The rotation of the rotating shaft 321 will drive the rotation of the connecting member 322. The connecting member 322 transmits the driving force of the driving member 324, so that the door body 312 can be opened or closed. During this process, the slider 323 slides relative to the door body 312 to perform sliding compensation.

[0054] The form of the door opening and closing drive device 32 is not limited to this. In another embodiment, a first connecting rod may be provided on the rotating shaft 321, and a second connecting rod may be rotatably provided on the other end of the first connecting rod. The second connecting rod is rotatably connected to the door body 312. When the driving member 324 drives the rotating shaft 321 to rotate, the door body 312 can also be rotated through the transmission of the first connecting rod and the second connecting rod to complete automatic opening or closing.

[0055] This design does not limit the specific form of the driving member 324. The driving member 324 can be a combination of an electric push rod, a rack provided on the electric push rod, and a gear provided on the rotating shaft 321. When the electric push rod is started, it pushes the rack to move linearly in a horizontal direction, and then drives the rotating shaft 321 to rotate through engagement with the gear. The driving member 324 can also drive the rotating shaft 321 to rotate through a motor; as long as the driving member 324 can drive the rotating shaft 321 to rotate, it will be sufficient.

[0056] Furthermore, when the size of the protective door 31 is constant, if one door frame 311 corresponds to one door body 312, the rotation radius of the door body 312 during the opening and closing process will be larger, thereby causing people or vehicles waiting outside the door body 312 to need to be farther away, and the time required for the door body 312 to fully open or close will also be longer, resulting in lower efficiency. In order to reduce the rotation radius of the door body 312, in this embodiment, two door bodies 312 are rotatably provided within the door frame 311, and two door opening and closing drive devices 32 corresponding to one protective door 31 are also provided. That is, the protective door 31 is in the form of a double door, with a smaller rotation radius and faster opening or closing.

[0057] When the second loading and unloading position is located below the lifting passage 101, although there is no risk of workers and tools falling from a height, there is still a possibility of entering the lifting passage 101. When there are workers or other debris in the lifting passage 101, when the lifting platform 2 moves to the second loading and unloading position, a safety accident may occur, or the lifting platform 2 may collide with the debris, causing damage to the entire equipment. Therefore, in an embodiment of the present invention, the protective assembly 3 includes two protective doors 31, one of the two protective doors 31 is arranged opposite to the first loading and unloading position, and the other is arranged opposite to the second loading and unloading position; the opening and closing door drive devices 32 are correspondingly provided. In this way, one protective door 31 is provided at the second loading and unloading position to reduce the possibility of workers or other debris entering the lifting passage 101, thereby improving safety and reducing the possibility of the lifting platform 2 being damaged by collision. At the same time, the opening and closing door drive devices 32 are provided in pairs corresponding to the protective doors 31 to drive the opening and closing of the two protective doors 31 respectively, eliminating the need for manual operation, improving work efficiency and helping to improve safety.

[0058] Corresponding to the loading and unloading positions, the base 1 is usually provided with a multi-layer platform for the transfer of materials. In the embodiment of the present utility model, please refer to Figure 3The base 1 includes a supporting body 11, a lower platform 12, and an upper platform 13. The lower platform 12 is arranged on one side of the supporting body 11 in a horizontal direction corresponding to the second loading and unloading position, and the lifting channel 101 is formed above the lower platform 12; the upper platform 13 is arranged on the other side of the supporting body 11 corresponding to the first loading and unloading position; wherein, two protective doors 31 are respectively arranged on the lower platform 12 and the upper platform 13. In this arrangement, when the lifting platform 2 is in the first loading and unloading position or the second loading and unloading position, staff or automatic equipment such as forklifts and AGV trolleys can receive materials on the upper platform 13 and the lower platform 12, and open the protective door 31 through the corresponding opening and closing door drive device 32 to transfer materials into the lifting platform 2 or transfer materials out of the lifting platform 2; at the same time, the upper platform 13 and the lower platform 12 are not on the same side of the supporting body 11, and the lifting channel 101 is formed on the lower platform Above the platform 12, that is, the upper platform 13 is not located above the lifting passage 101, and there is no need to drill a hole in the upper platform 13. Drilling a hole will easily affect the strength of the upper platform 13, and when protecting it, it is necessary to provide protection around the hole, which is more troublesome. In contrast, staggering the upper platform 13 and the lifting passage 101 can provide better protection. It is only necessary to set the protective door 31 on the side of the upper platform 13 opposite to the lifting passage 101. Protection is easier and will not cause damage to the upper platform 13.

[0059] It is understandable that when the lifting platform 2 is in the second unloading position, if the lifting platform 2 falls directly on the lower platform 12, there will be a height difference between the lifting platform 2 and the lower platform 12. Whether the materials on the lifting platform 2 are taken off or put on manually or by equipment such as AGV, this height difference will affect the normal handling of the staff and the movement of the AGV, thereby affecting the overall efficiency and posing a risk of insecurity. Therefore, in the embodiment of the present utility model, please refer to Figure 3 The lifting platform 2 includes a bottom plate 21 movably arranged in the lifting channel 101 along the vertical direction. The bottom plate 21 is used to place materials. The upper side of the lower platform 12 is provided with a receiving groove 121 connected to the lower end of the lifting channel 101. The receiving groove 121 is used to accommodate the bottom plate 21. In this configuration, by providing the receiving groove 121 on the lower platform 12, when the lifting platform 2 is in the second unloading position, the bottom plate 21 of the lifting platform 2 is located in the receiving groove 121, and the upper side of the bottom plate 21 can be flush with the upper side of the lower platform 12, thereby eliminating the impact of the height difference on efficiency and safety.

[0060] In order to further improve the safety of the lifting and transferring platform 100, in this embodiment, please refer to Figure 1 and Figure 3 The protection assembly 3 further includes a guardrail 33 provided on the lower platform 12, and the guardrail 33 is arranged around the outside of the lifting passage 101. The guardrail 33 cooperates with the setting of the safety door to protect the surroundings of the lifting passage 101 and improve safety.

[0061] In order to improve the stability of the lifting platform 2 during the up and down movement, in the embodiment of the present utility model, please refer to Figure 4 The lifting platform 2 is connected to the guardrail 33 in a sliding manner in the up and down directions, that is, the guardrail 33 guides the up and down movement of the lifting platform 2, thereby improving the stability of the lifting platform 2 during operation. At the same time, there is no need to set up other guiding structures, and the guardrail 33 can be used for guidance.

[0062] Furthermore, the guardrail 33 is provided with an elongated chute 331 extending in the vertical direction; the lifting platform 2 is provided with a rolling portion 22, through which the lifting platform 2 is slidably connected to the elongated chute 331. This arrangement converts the sliding friction between the lifting platform 2 and the guardrail 33 into rolling friction between the rolling portion 22 and the elongated chute 331, providing a more stable guiding function and reducing wear, thereby extending the service life of the entire lifting and transfer platform 100.

[0063] The rolling part 22 may be a ball or a wheel.

[0064] In order to realize the automatic lifting of the lifting platform 2, in the embodiment of the present utility model, please refer to Figure 5 and Figure 6 The lifting drive device 4 includes a hydraulic cylinder 41, a transmission gear 42, and a transmission chain 43. The hydraulic cylinder 41 is arranged on the base 1. The transmission gear 42 is arranged to rotate in a horizontal direction at the output end of the hydraulic cylinder 41. The transmission chain 43 is engaged with the upper end of the transmission gear 42, and one end is fixedly connected to the base 1 and the other end is fixedly connected to the lifting platform 2. With this arrangement, when the hydraulic cylinder 41 starts to move upward, it will drive the transmission gear 42 to move upward, and then the end of the transmission chain 43 fixed to the lifting platform 2 will also rise, thereby driving the lifting platform 2 to move upward. When the output end of the hydraulic cylinder 41 moves downward, it will drive the end of the transmission chain 43 fixed to the lifting platform 2 to descend, and then under the action of gravity, the lifting platform 2 will move downward.

[0065] The lifting drive device 4 is not limited to this form. For example, the automatic lifting of the lifting platform 2 can also be achieved through a motor and a threaded structure. However, in comparison, the load-bearing capacity of the threaded structure is limited, resulting in a limited amount of material that the lifting platform 2 can transport each time and low efficiency. The lifting drive device 4 can also be in the form of a motor, a chain and two sprockets, but in comparison, the motor will generate vibration during operation, which may then be transmitted to the lifting platform 2, resulting in poor stability of the lifting platform 2 and difficulty in ensuring safety performance.

[0066] Further, in order to improve the stability of the lifting platform 2, please refer to Figure 6 The output end of the hydraulic cylinder 41 is provided with a support rod extending in a horizontal direction. There are two transmission gears 42, and both are rotatably set on the support rod. There are two corresponding transmission chains 43, so that the gravity of the lifting platform 2 can be dispersed and the stability of the overall structure operation can be improved.

[0067] Furthermore, in this embodiment, the two ends of the support rod are connected to the guardrail 33 for sliding in the up and down directions through rollers or balls. The support of the support rod by the guardrail 33 can improve the stability of the support rod in the up and down directions, thereby improving the stability of the lifting platform 2 in the up and down directions.

[0068] In order to improve the safety and automation of the overall operation of the lifting and transfer platform 100, in this embodiment, the lifting and transfer platform 100 further includes a detection device and a control device. The detection device is used to detect the internal and external information of the lifting passage 101. The control device is electrically connected to the lifting drive device 4 and the door opening and closing drive device 32, and is used to control the lifting drive device 4 and the door opening and closing drive device 32 according to the internal and external information of the lifting passage 101. The detection device monitors the internal and external information of the lifting passage 101, thereby reducing the occurrence of unexpected situations, and can automatically control the activation of the lifting drive device 4 and the door opening and closing drive device 32 at the appropriate time, thereby improving efficiency.

[0069] Specifically, the internal and external information of the lifting channel 101 includes the position information of the lifting platform 2. By detecting the position information of the lifting platform 2, it is determined what position it is in. For example, when the lifting platform 2 is in the first loading and unloading position, the corresponding protective door 31 can be controlled to open, thereby improving efficiency. For another example, when the lifting platform 2 is not in any of the loading and unloading positions, even if the outside world manually controls the opening of the protective door 31 through buttons or the like, the control device can also control the opening and closing door drive device 32 to keep the protective door 31 closed, thereby reducing the possibility of staff or other equipment falling into the lifting channel 101 and improving safety.

[0070] Among them, there are many ways to detect the position information of the lifting platform 2. For example, a distance sensor can be fixed above or below the lifting platform 2 to detect the distance between it and the distance sensor, so as to determine the position of the lifting platform 2 in the lifting channel 101; for example, a trigger switch can also be set at each of the loading and unloading positions. When the trigger switch is not triggered, it means that the lifting platform 2 is not in any of the loading and unloading positions, that is, the protective door 31 is kept in a closed state to ensure safety performance. When the trigger switch is triggered, it means that the lifting platform 2 has reached the loading and unloading position, and the corresponding protective door 31 can be opened to improve work efficiency.

[0071] The internal and external information of the lifting channel 101 also includes the material information on the lifting platform 2. By detecting the material information, it can be determined whether the material on the lifting platform 2 has fallen during the operation of the lifting platform 2. It can also be determined whether the material on the lifting platform 2 has been taken out when the lifting platform 2 reaches the loading and unloading position. If not, the protective door 31 is kept in the open state to prevent the protective door 31 from repeatedly opening and closing and affecting work efficiency.

[0072] There are many ways to detect the material information on the lifting platform 2. The material on the lifting platform 2 can be weighed by a gravity sensor, or photographed by a camera, etc.

[0073] The internal and external information of the lifting passage 101 also includes the personnel information inside and outside the lifting passage 101. When the detection device detects that there is someone in the lifting passage 101, if the lifting platform 2 is running, the lifting drive device 4 and the door opening and closing drive device 32 will be immediately stopped. If the lifting platform 2 is not running, the lifting drive device 4 and the door opening and closing drive device 32 will be kept in a stopped state to prevent the operation of the equipment from causing harm to the personnel. When there is someone in the door opening area of ​​the protective door 31, even if the lifting platform 2 reaches the first loading and unloading position, the door opening and closing drive device 32 will be kept in a stopped state to prevent the opening of the protective door 31 from causing harm to the personnel. Of course, if a staff member accidentally stays in the door opening area of ​​the protective door 31 for a long time, an alarm device, such as an alarm light or a buzzer, can be set to remind the staff to ensure the efficiency of the overall equipment.

[0074] There are many ways to detect the personnel information inside and outside the lifting channel 101, which can be a camera, an infrared sensor, etc.

[0075] The internal and external information of the lifting passage 101 is not limited thereto, and the internal and external information of the lifting passage 101 also includes the position information of the transfer vehicle outside the protective door 31 and the like.

[0076] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lifting and transferring platform, characterized in that: include: The base has a lifting channel, the lifting channel has at least two loading and unloading positions, the at least two loading and unloading positions include a first loading and unloading position and a second loading and unloading position located below the first loading and unloading position; A lifting platform for placing materials, the lifting platform is arranged in the lifting channel in an upward and downward direction, and can reach each loading and unloading position in its movable range; A protection assembly, comprising at least one protection door and a door opening and closing drive device, wherein the protection door is disposed on the base and is disposed opposite to the first loading and unloading position, and the door opening and closing drive device is drivingly connected to the protection door to drive the protection door to open or close; The lifting drive device is connected to the lifting platform to drive the lifting platform to move in the up and down directions.

2. The lifting and transferring platform according to claim 1, characterized in that: The protection assembly includes two protection doors, one of which is arranged opposite to the first loading and unloading position, and the other is arranged opposite to the second loading and unloading position; The number of the door opening and closing driving devices is correspondingly set to two.

3. The lifting and transferring platform according to claim 2, characterized in that: The base comprises: Supporting body; A lower platform is provided on one side of the support body in a horizontal direction corresponding to the second loading and unloading position, and the lifting channel is formed above the lower platform; and An upper platform is provided on the other side of the supporting body corresponding to the first loading and unloading position; Wherein, the two protective doors are respectively arranged on the lower platform and the upper platform.

4. The lifting and transferring platform according to claim 3, characterized in that: The lifting platform includes a bottom plate movably arranged in the lifting channel along the up and down direction, and the bottom plate is used for placing materials; An accommodating groove communicating with the lower end of the lifting channel is provided on the upper side of the lower platform, and the accommodating groove is used to accommodate the bottom plate.

5. The lifting and transferring platform according to claim 3, characterized in that: The protection assembly further comprises a protection railing arranged on the lower platform, and the protection railing is arranged around the outer side of the lifting channel.

6. The lifting and transferring platform according to claim 5, characterized in that: The guardrail is provided with a long sliding groove extending in the up-down direction; The lifting platform is provided with a rolling portion, and the lifting platform is slidably connected to the long sliding groove through the rolling portion.

7. The lifting and transferring platform according to any one of claims 1 to 6, characterized in that: The protective door comprises a door frame provided on the base, and a door body rotatably provided in the door frame along an axis extending in an up-down direction; The door opening and closing drive device comprises: A rotating shaft is rotatably arranged on the door frame along an axis extending in an up-down direction; a connecting member, one end of which is fixedly connected to the rotating shaft; a slider, rotatably connected to the other end of the connecting member along an axis extending in the up-down direction, and the slider is slidably arranged on the door body in a horizontal direction; and A driving member is provided on the door frame and is drivingly connected to the rotating shaft to drive the rotating shaft to rotate.

8. The lifting and transferring platform according to any one of claims 1 to 6, characterized in that: The lifting drive device comprises: a hydraulic cylinder, disposed on the base; A transmission gear, which is arranged at the output end of the hydraulic cylinder and rotates in a horizontal direction; A transmission chain is meshed with the upper end of the transmission gear, and one end of the transmission chain is fixedly connected to the base, and the other end is fixedly connected to the lifting platform.

9. The lifting and transferring platform according to any one of claims 1 to 6, characterized in that: The lifting and transfer platform also includes a detection device and a control device. The detection device is used to detect the internal and external information of the lifting channel. The control device is electrically connected to the lifting drive device and the door opening and closing drive device to control the lifting drive device and the door opening and closing drive device according to the internal and external information of the lifting channel.

10. The lifting and transferring platform according to claim 9, characterized in that: The internal and external information of the lifting passage includes the position information of the lifting platform and / or the material information on the lifting platform and / or the personnel information inside and outside the lifting passage.

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