Taking and unloading mechanism and carrying equipment

Abstract

The utility model provides a taking and unloading mechanism and carrying equipment. The taking and unloading mechanism comprises a rack, a driving assembly and a limiting assembly. The machine frame comprises a base and two movable platforms movably installed on the base. The moving platform is used for bearing objects. The driving assembly is installed on the base, is in driving connection with the moving platforms and is used for driving the two moving platforms to get close to each other or get away from each other. The limiting assembly comprises two limiting pieces, each movable platform is provided with one limiting piece, and the two limiting pieces are used for clamping the two opposite ends of an object. According to the taking and unloading mechanism provided by the utility model, one limiting piece is arranged on each moving platform, and after an object is placed on the moving platforms, the two limiting pieces of the two moving platforms can respectively abut against the two opposite ends of the object, namely, the object is clamped between the two limiting pieces, so that the degree of freedom of movement of the object between the two limiting pieces is limited; therefore, the object can be prevented from moving from one limiting piece to the other limiting piece, the object can be stably placed, and falling is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of handling equipment, in particular to a taking and unloading mechanism and handling equipment. Background Art

[0002] During the production, installation, maintenance, and disassembly of energy storage containers, liquid cooling cabinets / combiner cabinets, or other items need to be loaded and unloaded. Currently, this process relies primarily on manual labor. While this method can meet operational requirements, it is inefficient, time-consuming, and labor-intensive due to the limitations of manual labor. Some automated equipment is already available for loading and unloading liquid cooling cabinets / combiner cabinets and other items. However, liquid cooling cabinets / combiner cabinets and other items can easily shift during transport, leading to tipping and falling, which is detrimental to ensuring the integrity of the structural functions. Utility Model Content

[0003] The embodiments of the present utility model provide a loading and unloading mechanism and a handling device, which can improve the technical problem of objects easily falling in the related art.

[0004] In a first aspect, an embodiment of the present invention provides a loading and unloading mechanism for transporting objects, comprising:

[0005] The frame comprises a base and two movable platforms movably mounted on the base; the movable platforms are used to support objects;

[0006] A driving assembly, mounted on the base and drivingly connected to the mobile platforms, for driving the two mobile platforms to move closer to or away from each other;

[0007] The limiting component includes two limiting parts. Each movable platform is equipped with one limiting part. The two limiting parts are used to clamp the opposite ends of the object.

[0008] In one embodiment, each of the mobile platforms includes a slide and an unloading arm extending in different directions;

[0009] The slide is movably connected to the base, one end of the unloading arm is connected to the slide, and the other end of the unloading arm extends in a direction away from the slide, and the unloading arm is used for supporting objects.

[0010] In one embodiment, the limiting member includes a magnetic element, which is provided on the slide and is used to magnetically attract the object.

[0011] In one embodiment, each of the limiting members further includes a limiting plate, one end of the limiting plate is connected to the slide, the other end of the limiting plate is used to be attached to one end of the object, and the magnetic element is arranged on the side of the limiting plate facing the object.

[0012] In one embodiment, the limiting assembly further includes a buffer element, and a buffer element is connected between each of the slides and the magnetic element; when the magnetic element moves toward the slide, the object buffer element is in a compressed state.

[0013] In one embodiment, the limiting assembly further includes a limiting element, and a limiting element is provided between each of the slides and the magnetic element, and when the magnetic element moves toward the slide, the limiting element can abut against the slide and the magnetic element.

[0014] In one embodiment, each of the slides is provided with two limiting members, and the two limiting members are arranged oppositely at two ends of the movable platform.

[0015] In one embodiment, the frame further comprises two screw rods, the two screw rods are rotatably connected to the base, one of the slides is screwed to one of the screw rods, and the other slide is screwed to the other of the screw rods;

[0016] The drive assembly also includes a power unit and a transmission unit. The power unit is arranged on the base. The transmission unit includes an input end, a second shaft and a third shaft. The second shaft and the third shaft are coaxially arranged, and the input end and the second shaft are not coaxially arranged. The power unit is connected to the input end, a screw is connected to the second shaft, and another screw is connected to the third shaft.

[0017] In one embodiment, the device further comprises a distance measuring element, a visual camera, and an identification element, wherein the distance measuring element, the visual camera, and the identification element are disposed between the two mobile platforms and facing the object;

[0018] The distance measuring element is used to measure the distance of an object, the visual camera is used to detect the position and direction of the object, and the identification element is used to identify and read the identity information of the object.

[0019] In a second aspect, an embodiment of the present invention further provides a transport device, comprising:

[0020] the device body; and

[0021] The taking-off and unloading mechanism is the taking-off and unloading mechanism described in any embodiment of the present application.

[0022] Beneficial effects of the embodiments of the present utility model:

[0023] By installing a limiting piece on each mobile platform, when an object is placed on the mobile platform, the two limiting pieces of the two mobile platforms can respectively abut against the opposite ends of the object, that is, the object is clamped between the two limiting pieces, and the freedom of the object to move between the two limiting pieces is limited, thereby preventing the object from moving from one limiting piece to another limiting piece, which helps to place the object stably and prevent it from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural schematic diagram of the taking-off and unloading mechanism provided in an embodiment of the present utility model;

[0026] Figure 2 This is an exploded schematic diagram of the taking-off and unloading mechanism provided in an embodiment of the present utility model;

[0027] Figure 3 It is a structural diagram of a mobile platform provided by an embodiment of the present utility model;

[0028] Figure 4 It is a structural schematic diagram of a limiting member provided in an embodiment of the present utility model;

[0029] Figure 5 It is an exploded schematic diagram of a limiting member provided in an embodiment of the present utility model;

[0030] Figure 6 It is a structural diagram of a transmission assembly provided by an embodiment of the present utility model;

[0031] Figure 7 1 is an exploded schematic diagram of a drive assembly provided in an embodiment of the present utility model;

[0032] Figure 8 It is a structural diagram of the visual positioning component provided by an embodiment of the present utility model.

[0033] Description of reference numerals:

[0034] 1. Unloading mechanism; x, first direction; y, second direction; z, third direction; 10. Frame; 11. Base; 12. Mobile platform; 121. Slide; 122. Unloading arm; 123. Protective pad; 13. Transmission assembly; 131. Screw; 132. Guide rod; 20. Drive assembly; 21. Power unit; 22. Transmission unit; 221. Input end; 222. Second axis; 223. Third axis; 30. Limiting assembly; 3 1. Limiting member; 311. Magnetic element; 312. Connecting arm; 313. Limiting plate; 314. Buffering element; 315. Limiting element; 316. First connecting plate; 317. Second connecting plate; 318. Guide column; 40. Proximity switch; 50. Visual positioning component; 51. Distance measuring element; 52. Visual camera; 53. Identification element; 54. First light source; 55. Second light source; 56. Third light source; 57. Fourth light source. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0036] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the loading and unloading mechanism provided in the embodiment of the present application. Figure 2 An exploded schematic diagram of the loading and unloading mechanism provided in an embodiment of the present application. A loading and unloading mechanism 1 provided in the present application can be applied to handling equipment such as a transport truck, etc., for carrying objects. The loading and unloading mechanism 1 may include a frame 10, a drive assembly 20, and a limiting assembly 30. The frame 10 includes a base 11 and two mobile platforms 12 movably mounted on the base 11, and the mobile platforms 12 are used to support objects. The drive assembly 20 is mounted on the base 11 and drives the connected mobile platforms 12 to drive the two mobile platforms 12 closer to or away from each other, so that the two mobile platforms 12 can adapt to objects of different sizes. The limiting assembly 30 may include two limiting members 31, each mobile platform 12 is equipped with a limiting member 31, and the two limiting members 31 are used to clamp at opposite ends of an object.

[0037] The present application installs a limiting member 31 on each mobile platform 12. When an object is placed on the mobile platform 12, the two limiting members 31 of the two mobile platforms 12 can be respectively located at opposite ends of the object, that is, the object is located between the two limiting members 31, so that the freedom of the object to move between the two limiting members 31 is limited, thereby preventing the object from moving from one limiting member 31 toward another limiting member 31, which helps to stably place the object and prevent it from falling.

[0038] See also Figure 3 , Figure 3 Schematic diagram of the structure of the mobile platform provided in an embodiment of the present application. In some embodiments, each mobile platform 12 may include a slide 121 and a retrieval arm 122 extending in different directions. The slide 121 is movably connected to the base 11. One end of the retrieval arm 122 is connected to the slide 121, and the other end of the retrieval arm 122 extends away from the slide 121. The retrieval arm 122 is used to support objects. Exemplarily, the slide 121 extends along a first direction x, and the two slides 121 are spaced apart on the same side of the base 11, and the two slides 121 can approach or move away from each other along a second direction y under the drive of the drive assembly 20, and the unloading arm 122 extends along a third direction z, one end of the unloading arm 122 is connected to one end of the slide 121, and the other end of the unloading arm 122 extends in a direction away from the slide 121, and the two unloading arms 122 are spaced apart. It should be noted that the first direction x, the second direction y and the third direction z are three different directions. In some embodiments, the first direction x, the second direction y and the third direction z can be three directions that are orthogonal or tend to be orthogonal. This design is conducive to improving the stability of the placement of objects and preventing objects from falling during transportation.

[0039] Please continue reading Figure 3 In some embodiments, the loading and unloading arm 122 includes a bearing surface for contacting an object, and a protective pad 123 may be provided on the bearing surface along the length direction (or the third direction z) of the loading and unloading arm 122. The protective pad 123 may be made of soft plastic (such as silicone, polyurethane), cloth, rubber or composite materials, etc., and may be selected according to the usage scenario and the degree of protection. When the loading and unloading arm 122 picks up and places an object, the loading and unloading arm 122 indirectly contacts the object through the protective pad 123, which can effectively prevent the loading and unloading arm 122 from scratching the surface of the object, ensuring effective protection of the surface of the object. Moreover, when transporting objects, the protective pad 123 can also absorb the collision vibration between the object and the loading and unloading arm 122 due to uneven road surface.

[0040] See also Figure 4 and Figure 5 , Figure 4 A schematic diagram of the structure of the limiting member provided in the embodiment of the present application, Figure 5An exploded schematic diagram of a limiting member provided for an embodiment of the present application. In some embodiments, each limiting member 31 may include a magnetic element 311, which is provided on the slide 121, and the magnetic element 311 is used to magnetically attract objects. The magnetic element 311 provided in the embodiment of the present application may be any common component capable of generating magnetic force, such as an electromagnet or a permanent magnet. The magnetic element 311 clamps objects through the magnetic force generated by it, which has obvious application advantages for quickly taking and placing objects. Exemplarily, the limiting member 31 may also include a connecting arm 312, one end of the connecting arm 312 is connected to the slide 121, and the other end of the connecting arm 312 extends along the third direction z and is connected to the magnetic element 311. After the object is placed on the unloading arm 122, the surface of the object facing the side of the base 11 can contact the two magnetic elements 311, which helps to further ensure the stable placement of the object and the stability of the object during transportation.

[0041] Please continue reading Figure 4 and Figure 5 Each limiting member 31 further includes a limiting plate 313, one end of which is connected to the slide 121, and the other end of which is adapted to be attached to one end of an object. A magnetic element 311 is disposed on the side of the limiting plate 313 facing the object. In one embodiment, one end of the limiting plate 313 can be connected to the end of the connecting arm 312 away from the slide 121, and the other end of the limiting plate 313 can extend in a direction away from the connecting arm 312. The magnetic element 311 is disposed between the connecting arm 312 and the limiting plate 313. When an object is placed between the two unloading arms 122, the object is attracted by the magnetic element 311 and placed between the two limiting plates 313. This restricts the object's freedom of movement away from or toward the base 11, as well as its freedom of movement from one limiting plate 313 toward the other, thereby helping to ensure the object's stability during transportation and prevent it from falling.

[0042] In some embodiments, the limiting member 31 further includes a buffer element 314, and a buffer element 314 is connected between each slide 121 and the magnetic element 311. When the magnetic element 311 moves toward the slide 121, the buffer element 314 is in a compressed state. The buffer element 314 can be made of any material that can reduce shock and absorb impact force, for example, it can be rubber, spring, foam plastic, air cushion, polymer (such as polyurethane) or cork. In one embodiment, the buffer element 314 can be connected between one end of the connecting arm 312 away from the slide 121 and the magnetic element 311. When the object is transported by the unloading mechanism 1 and the object is subjected to an external force toward the slide 121, the buffer element 314 connected between the magnetic element 311 and the connecting arm 312 will be compressed to allow the object to move a preset distance toward the slide 121, absorbing the impact and vibration between the object and the magnetic element 311.

[0043] In some embodiments, the limiting component 30 further includes a limiting element 315 , and a limiting element 315 is provided between each slide 121 and the magnetic element 311 . When the magnetic element 311 moves toward the slide 121 , the limiting element 315 can abut against the slide 121 and the magnetic element 311 . Exemplarily, the limiting element 315 may include two surfaces arranged in opposite directions, one surface of the limiting element 315 is connected to the magnetic element 311, and when the magnetic element 311 moves toward the slide 121, the other surface of the limiting element 315 can abut the end surface of the connecting arm 312 away from the slide 121. In another embodiment, one surface of the limiting element 315 can be connected to the end surface of the connecting arm 312 away from the slide 121, and when the magnetic element 311 moves toward the slide 121, the other surface of the limiting element 315 can abut the magnetic element 311. By arranging the limiting element 315 between the connecting arm 312 and the magnetic element, the embodiment of the present application can effectively limit the compression amount of the buffer element 314, avoid plastic deformation of the buffer element 314 due to overpressure, and thereby ensure that the buffer element 314 can maintain its vibration absorption and buffering capabilities.

[0044] In some embodiments, the limiting member 31 may also include a first connecting plate 316, a second connecting plate 317 and a guide column 318, the first connecting plate 316 is connected to the end of the connecting arm 312 away from the slide 121, the second connecting plate 317 is spaced apart from the first connecting plate 316, one end of the guide column 318 is slidably connected to the first connecting plate 316, and the other end of the guide column 318 is fixedly connected to the second connecting plate 317, the magnetic element 311 is connected to the side of the second connecting plate 317 away from the first connecting plate 316, the buffer element 314 can be a cylindrical spring, and the buffer element 314 is provided on the first connecting plate 316 and the second connecting plate 317 The buffer element 314 is sleeved on the guide column 318, and the limiting element 315 is arranged between the first connecting plate 316 and the second connecting plate 317. It can be connected to the first connecting plate 316 or the second connecting plate 317. When the magnetic element is subjected to a force toward the first connecting plate 316, the magnetic element 311 will push the second connecting plate 317 toward the first connecting plate 316, and the buffer element 314 is compressed until the two sides of the limiting element 315 respectively abut against the first connecting plate 316 and the second connecting plate 317. When the external force acting on the magnetic element 311 disappears, the magnetic element 311 returns to its original position under the reset force of the buffer element 314.

[0045] See also Figure 1 and Figure 2In some embodiments of the present application, each slide 121 may be provided with two limiting members 31, and the two limiting members 31 may be arranged oppositely at the two ends of the mobile platform 12. To improve the limiting effect of the limiting element 315 on the object, the two limiting members 31 of one slide 121 may be provided in a one-to-one correspondence with the two limiting members 31 of another slide 121. It is understandable that in other embodiments, each slide 121 may also be provided with three or more limiting members 31. The number of limiting members 31 of the same slide 121 and the spacing between the multiple limiting members 31 may be set according to actual conditions, and this embodiment does not impose any restrictions on this.

[0046] See also Figure 1 and Figure 2 In some embodiments, the unloading mechanism 1 may further include a proximity switch 40. Each slide 121 may be connected to a proximity switch 40. The proximity switch 40 is used to detect whether the unloading arm 122 is close to an object. The proximity switch 40 of this embodiment may be a sensor device capable of detecting whether the unloading arm 122 is close to or away from an object. The proximity switch 40 may be any suitable switch, such as an inductive proximity switch, a capacitive proximity switch, a photoelectric proximity switch, a magnetic proximity switch, or an ultrasonic proximity switch. In actual use, the appropriate switch may be selected according to the working conditions or other conditions. For example, the proximity switch 40 may be provided on the connecting arm 312, the limit plate 313, or the movable platform 12, etc., so as to facilitate sensing the position of the object.

[0047] See also Figure 3 、 Figure 6 and Figure 7 , Figure 6 A schematic diagram of the structure of the transmission assembly provided in an embodiment of the present application is provided. Figure 7Schematic diagram of an exploded view of a drive assembly provided in an embodiment of the present application. In some embodiments, the frame 10 may further include a transmission assembly 13 connected between the base 11 and the mobile platform 12. The drive assembly 20 is driven by the transmission assembly 13, and the transmission assembly 13 converts the output power of the drive assembly 20 into a translational motion that moves the two mobile platforms 12 toward or away from each other. Specifically, the drive assembly 20 may include a power unit 21 and a transmission unit 22. The transmission assembly 13 may include two screw rods 131. The power unit 21 may be any suitable power source such as an electric motor, a hydraulic motor, or a pneumatic motor. The power unit 21 is installed on the base 11. The transmission unit 22 includes an input end 221, a second shaft 222, and a third shaft 223. The second shaft 222 and the third shaft 223 are coaxially arranged. The input end 221 and the second shaft 222 are not coaxially arranged. The input end 221 is a power input end 221. The input end 221 is connected to the output shaft of the power unit 21 (for example, a motor shaft connected to the motor). The second shaft 222 and the third shaft 223 are both power output shafts. The second shaft 222 is connected to a screw rod 131 for distributing the power of the power unit 21 to the screw rod 13. 1. The third shaft 223 is connected to another screw rod 131 for distributing the power of the power unit 21 to the other screw rod 131. The two screw rods 131 are rotatably connected to the base 11. One slide 121 is screwed to one screw rod 131, and the other slide 121 is screwed to the other screw rod 131. It can be understood that the slide 121 and the screw rod 131 can be connected by using a ball slide. When the power unit 21 is started, the power of the power unit 21 is transmitted to the two screw rods 131 through the transmission unit 22. The two screw rods 131 perform rotational motion, and the rotational motion of the screw rod 131 will be converted into a linear motion of the slide 121 along the axial direction of the screw rod 131. The rotation directions of the transmission threads on the surfaces of the two screw rods 131 can be set to opposite directions, so that when the two screw rods 131 rotate, the two mobile platforms 12 can perform translational motion towards or away from each other.

[0048] Please continue reading Figure 6 In addition to the screw rod 131, in some embodiments, the transmission assembly 13 may also include a guide rod 132. The guide rod 132 is connected to the base 11 and is arranged parallel to the screw rod 131. The two slides 121 are slidably connected to the guide rod 132. When the two mobile platforms 12 move toward or away from each other, the two mobile platforms 12 can slide along the surface of the guide rod 132, which can help improve the stability of the movement of the mobile platforms 12. Specifically, there can be one, two, or more guide rods 132. This is not specifically limited in this embodiment. The number of guide rods 132 can be set according to actual needs.

[0049] See also Figure 1 、 Figure 2 as well as Figure 8 , Figure 8Schematic diagram of the structure of the visual positioning assembly provided in an embodiment of the present application. In some embodiments, the unloading mechanism 1 may further include a visual positioning assembly 50, which is disposed on the base 11 and is used to measure the distance to an object, detect the position and direction of an object, and identify and read the identity information of the object. Specifically, the visual positioning component 50 may include a ranging element 51, a visual camera 52, and an identification element 53. The ranging element 51, the visual camera 52, and the identification element 53 are arranged between the two mobile platforms 12 and are arranged toward the object. The ranging element 51 may be a device or sensor for measuring distance or distance change. In this embodiment, the ranging element 51 is used to measure the object distance of the object. It may be an ultrasonic sensor, an infrared sensor, a laser ranging sensor, a radar sensor, or a photoelectric sensor. The visual camera 52 is a device for capturing an image or video of the object. In this embodiment, the visual camera 52 is used to detect the position and direction of the object. It may be an ordinary digital camera, an industrial visual camera, a sports camera, a webcam, or an infrared camera. The specific selection can be evaluated and selected based on application needs and technical requirements. The identification element 53 is used to identify and read the identity information of the object. In this embodiment, the identification element 53 may be a scanner, an industrial-grade visual system, a mobile data terminal, etc. The appropriate device may be selected based on the requirements of the application scenario, the performance of the device, and other factors. In specific use, the identification element 53 can identify and read some identification codes (such as barcodes and QR codes) pre-set on the surface of the object.

[0050] The visual positioning component 50 may also include a visual light source, which is connected to the base 11 or the mobile platform 12 and is used to illuminate the surface of the object. Exemplarily, the visual light source may include a first light source 54, a second light source 55, a third light source 56, and a fourth light source 57. The first light source 54 may be connected to a slide 121, the second light source 55 may be connected to another slide 121, the third light source 56 and the fourth light source 57 may be connected to the base 11, and the third light source 56 and the fourth light source 57 are spaced apart along the second direction y on the side of the slide 121 facing the unloading arm 122. In some embodiments, the first light source 54, the second light source 55, the third light source 56, and the fourth light source 57 may be light tubes so that the surface of the object can be fully illuminated, thereby enabling the visual camera 52 to better detect the position and direction of the object, and enabling the identification element 53 to better identify and read the identity information of the object, which helps the unloading mechanism 1 to more accurately unload objects.

[0051] Based on the loading and unloading mechanism 1 of the embodiment of the present application, a handling device is also provided. The handling device includes a device body and the loading and unloading mechanism 1 of any embodiment of the present application, and the loading and unloading mechanism 1 is connected to the device body.

[0052] In summary, the beneficial effects of the loading and unloading mechanism and handling equipment provided by the embodiments of the present application are: on the one hand, by installing a limiting piece on each mobile platform, when the object is placed on the mobile platform, the two limiting pieces of the two mobile platforms can be located at the opposite ends of the object respectively, thereby preventing the object from moving from one limiting piece toward the other limiting piece, which helps to stably place the object and prevent it from falling; on the other hand, by connecting a buffer element between each slide and the magnetic element, when the object is subjected to an external force toward the slide during the process of transporting the object by the loading and unloading mechanism, the buffer element connected between the magnetic element and the connecting arm will be compressed, thereby absorbing the impact and vibration between the object and the magnetic element, avoiding hard contact; finally, by providing a limiting element between the slide and the magnetic element, the compression amount of the buffer element can be effectively limited, avoiding plastic deformation of the buffer element due to overpressure, and thereby ensuring that the buffer element can maintain its vibration absorption and buffering capabilities.

[0053] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, based on the idea of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A loading and unloading mechanism for transporting objects, characterized in that: include: a frame, including a base and two mobile platforms; Each of the mobile platforms includes a slide and an unloading arm extending in different directions; the slide is movably connected to the base, one end of the unloading arm is connected to the slide, and the other end of the unloading arm extends in a direction away from the slide, and the unloading arm is used to support objects; A driving assembly, mounted on the base and drivingly connected to the mobile platforms, for driving the two mobile platforms to move closer to or away from each other; The limiting component includes two limiting parts, each of the movable platforms is equipped with a limiting part, and the two limiting parts are used to clamp the opposite ends of the object; the limiting part includes a magnetic element, which is arranged on the slide and is used to magnetically attract the object.

2. The taking-off and unloading mechanism according to claim 1, characterized in that: Each of the limiting members further includes a limiting plate, one end of the limiting plate is connected to the slide, the other end of the limiting plate is used to be attached to one end of the object, and the magnetic element is arranged on the side of the limiting plate facing the object.

3. The taking-off and unloading mechanism according to claim 1, characterized in that: The limiting assembly further includes a buffer element, and a buffer element is connected between each of the slides and the magnetic element; when the magnetic element moves toward the slide, the buffer element is in a compressed state.

4. The taking-off and unloading mechanism according to claim 1, characterized in that: The limiting assembly further includes a limiting element, and a limiting element is provided between each of the slides and the magnetic element. When the magnetic element moves toward the slide, the limiting element can abut against the slide and the magnetic element.

5. The taking-off and unloading mechanism according to any one of claims 1 to 4, characterized in that: Each of the slides is provided with two limiting members, and the two limiting members are arranged oppositely at the two ends of the movable platform.

6. The taking-off and unloading mechanism according to any one of claims 1 to 4, characterized in that: The frame further comprises two screw rods, the two screw rods are rotatably connected to the base, one slide is screwed to one screw rod, and the other slide is screwed to the other screw rod; The drive assembly also includes a power unit and a transmission unit. The power unit is arranged on the base. The transmission unit includes an input end, a second shaft and a third shaft. The second shaft and the third shaft are coaxially arranged, and the input end and the second shaft are not coaxially arranged. The power unit is connected to the input end, a screw is connected to the second shaft, and another screw is connected to the third shaft.

7. The taking-off and unloading mechanism according to any one of claims 1 to 4, characterized in that: It also includes a distance measuring element, a visual camera and an identification element, wherein the distance measuring element, the visual camera and the identification element are arranged between the two mobile platforms and are arranged toward the object; The distance measuring element is used to measure the distance of an object, the visual camera is used to detect the position and direction of the object, and the identification element is used to identify and read the identity information of the object.

8. A transporting device, characterized in that: include: Equipment body; as well as The taking-off and unloading mechanism is the taking-off and unloading mechanism according to any one of claims 1 to 7.

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