Lifting appliance as well as lifting device and lifting appliance system using lifting appliance

Abstract

The lifting appliance comprises a support, a power source, an electromagnetic device and a controller are arranged on the support, the power source is electrically connected with the electromagnetic device, and the controller can control a switch of the power source so that the electromagnetic device can generate magnetic force. The utility model further provides a lifting device and a lifting appliance system.

Description

Technical Field

[0001] The present application belongs to the field of slings, and in particular to a sling with an electromagnetic device. Background Art

[0002] The background description provided here is used to generally introduce the background of this application. The work of the inventors currently named in this background section to the extent described, and the aspects of this description that do not constitute prior art at the time of application, are neither explicitly nor implicitly admitted to be prior art that conflicts with this application.

[0003] Lifting equipment is widely used in the industrial field and daily life. When lifting objects, it is necessary to accurately locate the position of the objects so that the lifter can be placed in the appropriate position above the objects. This is very important in application scenarios such as cargo aircraft. In addition to relying on the human eye, the existing technology also uses electronic positioning technology to locate the position of objects, including the following electronic positioning technologies:

[0004] 1. Visual Markers: Use specific visual markers, such as QR codes, AprilTags, etc. to mark objects and use cameras to identify and locate them, so as to achieve relative positioning between objects. However, if long-distance recognition is required, a larger AprilTag is required.

[0005] 2. Laser Range Finding: It uses a laser rangefinder or laser sensor to measure the distance and angle between objects, and calculates the relative position of objects through triangulation and other methods. However, the use of laser range finding may be affected by factors such as light scattering and obstructions, and the cost is relatively high.

[0006] 3. Ultrasonic Ranging: This is to use ultrasonic sensors to measure the distance between objects and calculate the relative position of objects by the time difference between sending and receiving ultrasonic signals. However, the accuracy of ultrasonic ranging is relatively low and is easily affected by environmental noise and interference.

[0007] 4. Radar Ranging: It uses radar systems to measure the distance and angle between objects, and calculates the relative position of objects by the time difference between sending and receiving electromagnetic waves. However, radar ranging equipment is relatively expensive, and the positioning accuracy for small objects is low.

[0008] 5. GPS positioning (Global Positioning System): It uses satellite systems for global positioning, measures the position of objects through multiple GPS receivers, and calculates the relative positions between objects. However, GPS positioning is affected by factors such as weather and building obstructions, and the positioning accuracy is low in indoor or dense urban environments.

[0009] 6. Inertial Navigation: It uses inertial sensors such as accelerometers and gyroscopes to measure the acceleration and angular velocity of an object, and calculates the relative position of the object by integration. However, the integration error of inertial navigation ranging will accumulate over time, resulting in a gradual decrease in positioning accuracy.

[0010] Moreover, during the process of retracting and extending the sling, the sling may swing when affected by factors such as wind, which may cause the sling to fail to accurately contact the object to be lifted. In addition, the slings in the prior art usually use mechanical grippers or hooks to lift objects, which makes the structure of the sling complex or the lifting process complicated.

[0011] Therefore, a new lifting device is needed to solve the above problems. Utility Model Content

[0012] This section introduces a selection of innovative concepts in a simplified form that are further described in the detailed description below. This section is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[0013] In response to the problems existing in the prior art, the present application provides a sling, including a bracket, on which a power supply, an electromagnetic device and a controller are provided. The power supply is electrically connected to the electromagnetic device, and the controller can control the switch of the power supply to enable the electromagnetic device to generate magnetic force.

[0014] Preferably, the bracket includes a first support platform and a second support platform, the first support platform is arranged at the bottom of the second support platform, the bracket is provided with a first through hole penetrating the first support platform and the second support platform, the controller is arranged on the top of the second support platform and covers the top of the first through hole, and the sling also includes a camera, which is arranged on the controller and is in the first through hole.

[0015] Preferably, the electromagnetic device is arranged at the bottom of the first support platform and does not block the bottom end of the first through hole. A second through hole is arranged on the electromagnetic device, and the geometric center of the second through hole is aligned with the geometric center of the first through hole.

[0016] Preferably, the power supply is disposed on top of the first support platform and surrounds the second support platform.

[0017] Preferably, the sling further comprises a top cover, which is connected to the first supporting platform and covers the top of the first supporting platform, the second supporting platform, the power supply and the controller.

[0018] Preferably, a charging device is provided on the outer surface of the top cover, and the charging device is electrically connected to the power source so as to charge the power source.

[0019] Preferably, the charging device is two metal rings surrounding the top cover.

[0020] Preferably, the top cover is generally teardrop-shaped.

[0021] Preferably, a hanging ring is provided on the top cover.

[0022] Preferably, a first groove surrounding the circumference of the second supporting platform is provided on the second supporting platform, and the top of the first supporting platform constitutes the bottom wall of the first groove, and the power supply is provided in the first groove.

[0023] Preferably, a second groove is provided at the bottom of the first supporting platform, and the electromagnetic device is arranged in the second groove.

[0024] In another aspect of the present application, a hanging device is also provided, which is connected to a hanging device according to the principle of the present application through a rope.

[0025] Preferably, the hanging device is an unmanned aerial vehicle.

[0026] In another aspect of the present application, a sling system is provided, including a sling according to the principle of the present application or a lifting device according to the principle of the present application. The sling system also includes a cargo box, and a magnetic adsorption plate adapted to the electromagnetic device is arranged on the top of the cargo box.

[0027] Preferably, the magnetic adsorption disk is provided with a third groove, and the bottom of the third groove is made of magnetic metal.

[0028] Preferably, the inner wall of the third groove is an inclined surface, and the opening of the third groove is larger than the bottom of the third groove.

[0029] Preferably, the magnetic adsorption plate and the cargo box are connected by screws or cable ties.

[0030] Preferably, it also includes a take-off and landing platform, which includes an identification area and a loading area. The identification area is provided with visual identification features, and the loading area is used to place loading boxes.

[0031] The sling, hoisting device and sling system according to the principle of the present application can accurately position and adsorb the object to be lifted by the sling through magnetic force, with high positioning accuracy and unaffected by the surrounding environment, and reduce the swing of the sling, simplifying the structure of the sling and the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Other or additional features, advantages and details are presented by way of example only in the following detailed description of the embodiments. In the drawings:

[0033] Figure 1 Schematically shows a cross-sectional view of a spreader according to the principles of the present application,

[0034] Figure 2 Schematically shows a bottom view of a spreader according to the principles of the present application,

[0035] Figure 3 Schematically shows a front view of a spreader according to the principles of the present application,

[0036] Figure 4 The figure schematically shows a cargo box according to the principle of the present application.

[0037] Figure 5 Schematically shows a cross-sectional view of a magnetic adsorption disk according to the principle of the present application,

[0038] Figure 6 The schematic diagram shows the connection method between the magnetic adsorption plate and the top of the cargo box according to the principle of the present application.

[0039] Figure 7 Another connection method between the magnetic adsorption plate and the top of the cargo box according to the principle of the present application is schematically shown.

[0040] Figure 8 A take-off and landing platform according to the principles of the present application is schematically shown. DETAILED DESCRIPTION

[0041] The following description is merely exemplary in nature and is not intended to limit the present application, application or use. Furthermore, there is no intention to be limited by any express or implied theory presented in the preceding technical field, background technology and utility model content or the following detailed description. It should be understood that throughout the drawings, corresponding reference numerals identify similar or corresponding parts or features.

[0042] The present application will now be further elaborated. In the following paragraphs, different aspects of the present application are defined in more detail. Unless clearly indicated to the contrary, each aspect so defined can be combined with any other (multiple) aspects. Especially, any feature indicated as preferred or advantageous can be combined with any other (multiple) features indicated as preferred or advantageous.

[0043] In response to the problems existing in the prior art, the present application provides a sling, which is provided with an electromagnetic device capable of generating magnetic force, so that a carrying device matched with the sling and equipped with an object to be lifted can be adsorbed on the sling to complete the lifting operation.

[0044] Refer to the attached Figure 1, schematically shows a sling 100 according to the principle of the present application, including a bracket 110, a power supply 120 arranged on the bracket 110, an electromagnetic device 130 and a controller 140, the power supply 120 is electrically connected to the electromagnetic device 130, so that it can supply power to the electromagnetic device 130, and the controller 140 can control the switch of the power supply 120, so that the power supply 120 supplies power to the electromagnetic device 130 or cuts off the power from the electromagnetic device 130. During use, the sling 100 can be hung on a hoisting device (not shown) by a rope (not shown), when the sling 100 is close to a carrier device that matches it and carries an object to be hoisted, the controller 140 controls the power supply 120 to energize the electromagnetic device 130 to generate magnetic force, and the electromagnetic device that generates magnetic force can adsorb the carrier device to the sling 100, and then the rope is retracted to lift the carrier device, thereby completing the lifting process, which avoids the complicated operation of lifting the carrier device by a mechanical gripper or hook, making the lifting operation simpler. In addition, due to the magnetic attraction between the sling 100 and the object-carrying device, the sling 100 is not likely to deviate or swing when approaching the object-carrying device.

[0045] Refer to the attached Figure 1 Advantageously, the bracket 110 includes a first support platform 111 and a second support platform 112, the first support platform 111 is arranged at the bottom of the second support platform, and the entire bracket 110 is provided with a first through hole 113 penetrating the first support platform and the second support platform, wherein the port of the first through hole 113 located at the second support platform 112 is the top end, and the port located at the first support platform 111 is the bottom end. The controller 140 is arranged at the top of the second support platform 112 and covers the top end of the first through hole 113. Advantageously, the sling 100 also includes a camera 150, which is arranged on the controller 140 and is located in the first through hole 113. The camera 150 can collect images of the object-carrying device and its location, and transmit the image information to the controller 140, and the controller 140 can analyze the image information to determine the distance between the sling 100 and the object-carrying device. When the controller 140 determines that the distance between the sling 100 and the carrier is within a preset numerical range, for example, less than 10 meters or less than 5 meters, the controller 140 can turn on the switch of the power supply 120 to supply power to the electromagnetic device 130 so that it generates magnetic force, so that the sling 100 can adsorb the carrier. In addition, the camera 150 can also be used to locate the position of the carrier. For example, in the application scenario where the sling is an aircraft, the camera can find and collect the position of the carrier, so as to locate the sling so that the sling can accurately locate the carrier for lifting operations. The carrier is provided with a magnetic metal part so that it can be adsorbed by the magnetic force of the sling 100. The carrier can be a carrier box, a carrier cage or any other form of device that can carry objects.

[0046] Refer to the attached Figure 1 and attached Figure 2 , the electromagnetic device 130 is arranged at the bottom of the first support platform 111 and does not block the bottom end of the first through hole 113. A second through hole 114 is arranged on the electromagnetic device 130, and the geometric center of the second through hole 114 is aligned with the geometric center of the first through hole 113. That is, the electromagnetic device 130 is an annular object arranged at the bottom of the first support platform 111 and does not block the bottom end of the first through hole 113, thereby ensuring that the field of view of the camera 150 located in the first through hole 113 is not blocked. Advantageously, the power supply 120 is arranged on the top of the first support platform 111 and surrounds the second support platform 112, so that the spatial layout of the sling 100 is more compact. The power supply 120 can be composed of multiple batteries, such as 18650 lithium batteries or 21700 lithium batteries.

[0047] Refer to the attached Figure 1 and attached Figure 2 The sling 100 further includes a top cover 160, which is connected to the first support platform 111 and covers the top of the first support platform 111, the second support platform 112, the power supply 120 and the controller 130, thereby covering the above components. Advantageously, the edge of the top cover 160 is connected to the first support platform 111 by means of a snap connection or a screw connection. Figure 3 Advantageously, a charging device 161 is provided on the outer surface of the top cover 160, and the charging device 161 is electrically connected to the power supply 120 so as to charge the power supply 120. The charging device 161 may be a charging interface, and preferably may be two metal rings surrounding the top cover 160, so as to be respectively connected to the positive and negative poles of a charging power supply (not shown) for charging. When the hoisting device is an aircraft, the charging power supply may be arranged inside the aircraft, and the hoist 100 may be charged when it is recovered inside the aircraft. The annular charging device 161 may ensure that the hoist can always be connected to the charging interface of the charging power supply during charging, thereby avoiding the problem that the charging device on the hoist 100 cannot be aligned with the charging interface of the charging power supply due to its own rotation during the retraction and release process.

[0048] Refer to the attached Figure 1 The second support platform 112 may be provided with a first groove 115 surrounding the circumference of the second support platform 112, and the top of the first support platform 111 constitutes the bottom wall of the first groove 115, and the power supply 120 is arranged in the first groove 115, so that the power supply 120 can be more stably fixed on the bracket 110. The bottom of the first support platform 111 may be provided with a second groove 116, and the electromagnetic device 130 is arranged in the second groove 116, so that the electromagnetic device 130 can be more stably installed on the bracket 110.

[0049] Refer to the attached Figure 1 and attached Figure 3The top cover 160 is generally in the shape of a water droplet and has a streamlined surface, which is conducive to reducing wind resistance and swing, making the sling 100 more stable when suspended in the air. A lifting ring 162 is provided on the top cover 160 to tie a rope for lifting. The number of the lifting ring 162 can be one, or two or more, but preferably one.

[0050] In another aspect of the present application, a lifting device is provided, which uses a lifting device 100 according to the principle of the present application. The lifting device can be various lifting equipment such as a crane, or a transportation device such as an aircraft, especially an unmanned aerial vehicle. It is easy for those skilled in the art to understand that any application scenario that requires lifting heavy objects can use the lifting device according to the principle of the present application.

[0051] In another aspect of the present application, a sling system is provided, the sling system comprising a sling 100 according to the principle of the present application or a sling device according to the principle of the present application. Figure 4 The lifting tool system may further include a cargo box 200 for loading the object to be lifted. A magnetic adsorption plate 210 adapted to the electromagnetic device 130 of the lifting tool is provided on the top of the cargo box 200, so that the cargo box 200 can be adsorbed by the electromagnetic device 130. Figure 4 and attached Figure 5 The magnetic adsorption plate 210 is provided with a third groove or depression 211, the bottom 212 of the third groove 211 is made of magnetic metal, the side wall 213 of the third groove 211 is an inclined surface, and the opening 214 of the third groove 211 is larger than the bottom 212 thereof. This structure of the third groove 211 enables the sling 100 to descend and approach the magnetic adsorption plate 210, even if the electromagnetic device 130 is not aligned with the bottom 212, as long as the electromagnetic device 130 can fall into the opening 214 of the magnetic adsorption plate 210, the electromagnetic device 130 can slide from the inclined side wall 213 to the bottom 212 as the sling 100 descends, thereby adsorbing the cargo box 200, avoiding the problem that the cargo box 200 cannot be adsorbed because the electromagnetic device 130 is not aligned with the bottom 212.

[0052] Refer to the attached Figure 6 The magnetic adsorption plate 210 may be provided with a mounting hole 215, and the top of the cargo box 200 may be provided with a mounting hole 216 adapted to the mounting hole 215, so that the magnetic adsorption plate 210 is connected to the cargo box 200 through a screw or a latch. Figure 7The top of the luggage box 200 may be provided with a fixing hole 217 so that the magnetic adsorption plate 210 can be tied to the top of the luggage box 200 using a strap or a wire. This detachable connection between the magnetic adsorption plate 210 and the top of the luggage box 200 facilitates replacement of a new or different-sized magnetic adsorption plate 210 when necessary. Alternatively, the magnetic adsorption plate 210 may also be integrally formed with the top of the luggage box 200.

[0053] Refer to the attached Figure 8 The sling system may further include a lifting and lowering platform 300, which includes an identification area 310 and a loading area 320. The identification area 310 is provided with a visual identification feature, which may be any pattern such as numbers, letters or any graphics, and the identification visual feature may also be any color, such as orange, red, etc., so that it can be identified and located by the camera 150 of the sling 100. Advantageously, the identification area 310 may be arranged to surround the loading area 320. The loading area 320 is used to place the loading box 200, and the size of the loading area 320 is set so that the loading box 200 does not extend beyond the loading area 320. During the lifting operation, the lifting device can identify the visual identification feature of the lifting and lowering platform 300 through the camera 150 of the sling 100 and locate the position of the loading device 200 accordingly, thereby adjusting the posture and position of the sling 100, so that the sling 100 and the loading box 200 are in a relative position suitable for lifting, ensuring that the lifting can proceed smoothly. Advantageously, the lifting platform 300 further comprises a fixing area 330 , which may be arranged around the identification area 310 , and the fixing area 330 may be provided with fixing holes 331 , so as to fix the lifting platform on a horizontal plane by nails or ropes.

[0054] Although at least one exemplary embodiment is described in the foregoing detailed description, it should be understood that there are a large number of variations. It should also be understood that an exemplary embodiment or multiple exemplary embodiments described herein are merely examples and are not intended to limit the scope, applicability or configuration of the present application in any way. On the contrary, the foregoing detailed description will provide convenient guidance for those skilled in the art to implement an exemplary embodiment or multiple exemplary embodiments. It should be understood that various changes, modifications or changes, etc. can be made to the functions and arrangements of elements without departing from the scope of the present application as set forth in the attached claims and their equivalents.

Claims

1. A sling, characterized in that: The invention comprises a bracket, on which a power source, an electromagnetic device and a controller are arranged. The power source is electrically connected to the electromagnetic device, and the controller can control the power source so that the electromagnetic device is energized to generate magnetic force.

2. The sling according to claim 1, characterized in that: The bracket includes a first support platform and a second support platform, the first support platform is arranged at the bottom of the second support platform, the bracket is provided with a first through hole penetrating the first support platform and the second support platform, the controller is arranged on the top of the second support platform and covers the top of the first through hole, and the sling also includes a camera, which is arranged on the controller and is located in the first through hole.

3. The sling according to claim 2, characterized in that: The electromagnetic device is arranged at the bottom of the first support platform and does not block the bottom end of the first through hole. A second through hole is arranged on the electromagnetic device, and the geometric center of the second through hole is aligned with the geometric center of the first through hole.

4. The sling according to claim 3, characterized in that: The power supply is disposed on the top of the first supporting platform and surrounds the second supporting platform.

5. The sling according to claim 4, characterized in that: The sling also includes a top cover, which is connected to the first supporting platform and covers the top of the first supporting platform, the second supporting platform, a power supply and a controller.

6. The sling according to claim 5, characterized in that: A charging device is disposed on the outer surface of the top cover, and the charging device is electrically connected to the power source so as to charge the power source.

7. The sling according to claim 6, characterized in that: The charging device is two metal rings surrounding the top cover.

8. The sling according to claim 7, characterized in that: The top cover is generally in the shape of a teardrop.

9. The sling according to claim 8, characterized in that: The top cover is provided with a hanging ring.

10. The sling according to claim 9, characterized in that: The second support platform is provided with a first groove surrounding the circumference of the second support platform, and the top of the first support platform constitutes the bottom wall of the first groove, and the power supply is arranged in the first groove.

11. The sling according to claim 10, characterized in that: A second groove is arranged at the bottom of the first supporting platform, and the electromagnetic device is arranged in the second groove.

12. A hanging device, characterized in that: The hanging device is connected to the hanging tool according to any one of claims 1 to 11 through a rope.

13. The hanging device according to claim 12, characterized in that: The hanging device is an unmanned aerial vehicle.

14. A sling system, comprising the sling according to any one of claims 1 to 11 or the sling device according to claim 12 or 13, characterized in that: The sling system also includes a cargo box, and a magnetic adsorption plate adapted to the electromagnetic device is arranged on the top of the cargo box.

15. The sling system according to claim 14, characterized in that: The magnetic adsorption plate is provided with a third groove, and the bottom of the third groove is made of magnetic metal.

16. The sling system according to claim 15, characterized in that: The inner wall of the third groove is an inclined surface, and the opening of the third groove is larger than the bottom of the third groove.

17. The sling system according to claim 15, characterized in that: The magnetic adsorption plate and the cargo box are connected via screws or cable ties.

18. The sling system according to claim 16 or 17, characterized in that: It also includes a take-off and landing platform, which includes an identification area and a loading area. The identification area is provided with visual identification features, and the loading area is used to place the loading box.

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