Lifting unmanned aerial vehicle for construction material transportation
By designing a construction material transport drone with a buffered hopper and a four-bar hook structure, the problem of impact damage during landing of traditional construction materials by hoisting drones has been solved, achieving material safety protection and improved transportation efficiency.
Patent Information
- Application Number
- CN202511537873.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-02-24
AI Technical Summary
When traditional hoisting drones land to lift construction materials, they are subjected to significant impact, which can easily damage the materials.
A construction material transport drone was designed, comprising the drone body, a four-bar hook, and a buffer hopper. The buffer hopper consists of an outer hopper, an inner hopper, buffer rods, a buffer plate, a hanging ring, an anti-detachment component, and a sealing cover. The double buffer structure protects the construction materials. The buffer rods and buffer plate absorb the impact force during landing. The anti-detachment component and hanging ring provide a reinforced connection, and the sealing cover prevents rainwater erosion.
It effectively reduces impact damage to construction materials during landing, ensures transportation safety, prevents loose connections and rainwater erosion, and improves transportation efficiency.
Smart Images

Figure CN121553368A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and more particularly to a hoisting UAV for transporting construction materials. Background Technology
[0002] Drone technology has evolved from conceptual exploration to commercial application. Early lifting drones were mostly modified from consumer-grade platforms with limited payload capacity. Companies have obtained patents such as the "four-link flexible lifting mechanism," and breakthroughs have been made in self-balancing technology and precision delivery systems. Leading companies like DJI have launched industrial-grade products, increasing payload capacity to the 50-100 kg level. Tandem rotor models have reached payload capacities of 300 kg, and dual-drone collaborative lifting has broken through the 500 kg threshold.
[0003] In the field of modern construction engineering, especially in remote areas or construction sites with inconvenient transportation, traditional material transportation methods face numerous challenges. Rugged roads make it difficult for large transport vehicles to reach the work site, while relying on manual handling is inefficient and consumes a lot of labor costs. In special construction environments such as mountainous areas, canyons, and high-rise buildings, the installation and operation of traditional hoisting equipment are limited and cannot meet the flexible and ever-changing construction needs, which has spurred the development of hoisting drone technology.
[0004] However, because the drones carrying construction materials are relatively heavy, the impact force generated upon landing is greater than before. Furthermore, since the cargo is hoisted at the bottom, any protrusions on the ground during landing are subject to greater impact force, which can easily cause direct impact damage to the construction materials, resulting in certain economic losses. Summary of the Invention
[0005] The purpose of this invention is to provide a hoisting drone for transporting construction materials, which aims to solve the problem that traditional hoisting drones are subject to large impact forces when landing on construction materials, making the materials vulnerable to damage.
[0006] To achieve the above objectives, the present invention provides a hoisting drone for transporting construction materials, comprising a drone body, a four-bar hook and a buffer box. The four-bar hook is attached to the bottom of the drone body, and the buffer box is attached to the side of the four-bar hook away from the drone body. The buffer box includes an outer box, an inner box, a buffer rod, a buffer plate, a hanging ring, an anti-detachment component and a sealing cover. The outer hoisting box is located at the bottom of the drone body. The hanging ring is fixedly connected to the outer hoisting box and located at the top of the outer hoisting box. The buffer rod is fixedly connected to the outer hoisting box and located inside the outer hoisting box. The buffer plate is fixedly connected to the buffer rod and located on the side of the buffer rod away from the outer hoisting box. The inner hoisting box is fixedly connected to the buffer plate and located on the side of the buffer plate away from the buffer rod. The sealing cover is assembled on the top of the outer hoisting box. The anti-detachment component is located on one side of the hanging ring.
[0007] The buffer rod includes a top rod, a push plate, and a buffer pad. The top rod is fixedly connected to the outer hoisting box and is located inside the outer hoisting box. The buffer pad is fixedly connected to the buffer plate and is located on the side of the buffer plate away from the inner hoisting box. The push plate is fixedly connected to the top rod and to the buffer plate, and is located between the buffer plate and the top rod.
[0008] The push plate includes a push plate body and a telescopic rod. The telescopic rod is fixedly connected to the buffer plate and is located around the buffer pad. The push plate body is fixedly connected to the telescopic rod and to the top rod, and is located between the top rod and the telescopic rod.
[0009] The buffer plate includes a damping plate and a sponge pad. The damping plate is fixedly connected to the buffer pad and is located on one side of the buffer pad. The sponge pad is disposed between the damping plate and the inner hanging box.
[0010] The four-bar linkage hook includes a connecting chain and a hook. The connecting chain is attached to the bottom of the drone body, and the hook is fixedly connected to the connecting chain and attached to the hanging ring. The anti-detachment component is also included.
[0011] The anti-detachment component includes an anti-detachment cover and a connector. The connector is disposed around the hanging ring, and the anti-detachment cover is disposed on the connecting chain and threadedly connected to the connector, and is located on one side of the connecting chain.
[0012] The sealing cover plate includes a cover plate body and a sealing ring. The cover plate body is disposed on the top of the outer hoisting box, and the sealing ring is fixedly connected to the cover plate body and located on one side of the cover plate body.
[0013] This invention discloses a hoisting drone for transporting construction materials. The buffer container stores the construction materials to be hoisted. A four-bar hook connects the buffer container to the drone body, allowing the drone body to fly and hoist the buffer container, thereby transporting the construction materials inside. When the drone body arrives at the construction area, it slowly descends and lowers the buffer container. Upon contact with the ground, the impact force is transmitted through the outer container to the buffer rod and the buffer plate for double buffering, dissipating the impact force and protecting the contents of the inner container. The construction materials are not damaged by impact or collision. The hanging ring is used to connect the outer hoisting box to the four-bar hook. The anti-detachment component is used to reinforce the connection between the outer hoisting box and the four-bar hook, preventing the connection from loosening and causing the outer hoisting box to fall off, thus posing a safety hazard. The sealing cover is used to cover and seal the inner hoisting box, protecting the sand transported in the inner hoisting box from being wetted by rainwater, which would affect the subsequent unloading of sand. This solves the problem that traditional drone hoisting of construction materials is subject to greater impact force and damage when landing. Attached Figure Description
[0014] To make the technical solution and advantages of this application clearer, the embodiments of this application will be described in further detail below.
[0015] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.
[0016] It should be noted that all information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.), and signals involved in this application have been authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the strain data, acceleration data, displacement data, pressure data, and video data involved in this application were all obtained with full authorization.
[0017] Figure 1 This is a structural schematic diagram of a hoisting drone for transporting construction materials provided by the present invention.
[0018] Figure 2 This is a top view of a hoisting drone for transporting construction materials provided by the present invention.
[0019] Figure 3 yes Figure 2 A cross-sectional view along plane AA.
[0020] Figure 4 yes Figure 3 A magnified view of detail B.
[0021] Figure 5 This is a schematic diagram of the connection between the four-bar hook and the hook of a hoisting drone for transporting construction materials, provided by the present invention.
[0022] In the diagram: 1-UAV body, 2-Four-bar linkage hook, 3-Buffer box, 21-Connecting chain, 22-Hook, 31-Outer box, 32-Inner box, 33-Buffer rod, 34-Buffer plate, 35-Hanging ring, 36-Anti-detachment component, 37-Sealing cover, 331-Top rod, 332-Push plate, 333-Buffer pad, 3321-Push plate body, 3322-Telescopic rod, 341-Damping plate, 342-Sponge pad, 361-Anti-detachment cover, 362-Connector, 371-Cover plate body, 372-Sealing ring. Detailed Implementation
[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0024] Please see Figures 1 to 5 This invention provides a hoisting drone for transporting construction materials, comprising a drone body 1, a four-bar hook 2, and a buffer box 3. The four-bar hook 2 is attached to the bottom of the drone body 1, and the buffer box 3 is attached to the side of the four-bar hook 2 away from the drone body 1. The buffer box 3 includes an outer box 31, an inner box 32, a buffer rod 33, a buffer plate 34, a hanging ring 35, an anti-detachment component 36, and a sealing cover 37. The outer box 31 is located at the bottom of the drone body 1, and the hanging ring 35 is attached to the outer box 32. The outer hoisting box 31 is fixedly connected and located at the top of the outer hoisting box 31. The buffer rod 33 is fixedly connected to the outer hoisting box 31 and located inside the outer hoisting box 31. The buffer plate 34 is fixedly connected to the buffer rod 33 and located on the side of the buffer rod 33 away from the outer hoisting box 31. The inner hoisting box 32 is fixedly connected to the buffer plate 34 and located on the side of the buffer plate 34 away from the buffer rod 33. The sealing cover plate 37 is assembled on the top of the outer hoisting box 31. The anti-detachment component 36 is disposed on one side of the hanging ring 35.
[0025] In this embodiment of the invention, the buffer box 3 is used to store construction materials to be hoisted, and the four-bar hook 2 is used to connect the buffer box 3 and the drone body 1, so that the drone body 1 can fly and hoist the buffer box 3 to transport the construction materials inside. When the drone body 1 arrives at the construction area, the drone body 1 slowly descends and lowers the buffer box 3. After the buffer box 3 contacts the ground, the impact force is transmitted through the outer box 31 to the buffer rod 33 and the buffer plate 34 for double buffering, consuming the impact force and thus protecting the construction materials in the inner box 32 from damage. The hanging ring 35 is used to connect the outer hoisting box 31 to the four-bar hook 2. The anti-detachment component 36 is used to reinforce the connection between the outer hoisting box 31 and the four-bar hook 2, preventing the connection between the outer hoisting box 31 and the four-bar hook 2 from loosening, which could cause the outer hoisting box 31 to fall off and cause a safety accident. The sealing cover plate 37 is used to cover and seal the inner hoisting box 32, protecting the sand grains transported in the inner hoisting box 32 from being wetted by rainwater, which would affect the subsequent unloading of sand grains. This solves the problem that traditional hoisting drones are subject to greater impact force when landing on construction materials, which can easily damage the construction materials.
[0026] Furthermore, the buffer rod 33 includes a top rod 331, a push plate 332, and a buffer pad 333. The top rod 331 is fixedly connected to the outer hoisting box 31 and is located inside the outer hoisting box 31. The buffer pad 333 is fixedly connected to the buffer plate 34 and is located on the side of the buffer plate 34 away from the inner hoisting box 32. The push plate 332 is fixedly connected to the top rod 331 and the buffer plate 34, and is located between the buffer plate 34 and the top rod 331. The push plate 332 includes a push plate body 3321 and a telescopic rod 3322. The telescopic rod 3322 is fixedly connected to the buffer plate 34 and is located around the buffer pad 333. The push plate body 3321 is fixedly connected to the telescopic rod 3322 and the top rod 331, and is located between the top rod 331 and the telescopic rod 3322.
[0027] In this embodiment of the invention, the buffer rods 33 are evenly distributed between the outer hoisting box 31 and the buffer plate 34. When the UAV body 1 lowers the buffer hoisting box 3 to contact the ground, the impact force is transmitted to the top rod 331 through the outer hoisting box 31. This causes the top rod 331 to push the push plate body 3321 to compress the telescopic rod 3322, thereby squeezing the buffer pad 333 and achieving initial buffering of the impact force. The buffer pad 333 is a rubber pad. Furthermore, the buffer plate 34 includes a damping plate 341 and a sponge pad 342. The damping plate 341 is fixedly connected to the buffer pad 333 and is located on one side of the buffer pad 333. The sponge pad 342 is disposed between the damping plate 341 and the inner hoisting box 32. In this embodiment of the invention, the impact force after initial buffering is transmitted via the telescopic rod 3322 to the damping plate 341 (which converts the impact energy into non-destructive energy (such as heat energy, sound waves) and dissipates it, i.e., the material generates a "force that hinders relative motion" due to molecular friction, structural friction, etc., which delays the impact action time and weakens the impact energy transmission efficiency) and the sponge pad 342 (which stores the impact energy through its own macroscopic deformation (compression, stretching) and then releases the energy in a slow manner) for secondary buffering, thereby completely consuming the impact force.
[0028] Furthermore, the four-bar hook 2 includes a connecting chain 21 and a hook 22. The connecting chain 21 is hung on the bottom of the UAV body 1, and the hook 22 is fixedly connected to the connecting chain 21 and hung on the hanging ring 35, and the anti-detachment component 36.
[0029] In this embodiment of the invention, the hook 22 is hung on the hanging ring 35 on the top of the outer hoisting box 31 to connect the connecting chain 21 and the outer hoisting box 31, thereby completing the connection between the UAV body 1 and the outer hoisting box 31.
[0030] Furthermore, the anti-detachment component 36 includes an anti-detachment cover 361 and a connector 362. The connector 362 is disposed around the hanging ring 35, and the anti-detachment cover 361 is disposed on the connecting chain 21 and threadedly connected to the connector 362, and is located on one side of the connecting chain 21.
[0031] In this embodiment of the invention, the connector 362 is located at the hook ring 35 and is threadedly connected to the anti-detachment cover 361, so that the anti-detachment cover 361 can cover the hook 22, preventing the connecting chain 21 from shaking when the UAV body 1 lifts the outer hoisting box 31, causing the hook 22 and the hook ring 35 to separate, which would cause the outer hoisting box 31 to fall off and cause a safety accident.
[0032] Furthermore, the sealing cover plate 37 includes a cover plate body 371 and a sealing ring 372. The cover plate body 371 is disposed on the top of the outer hoisting box 31, and the sealing ring 372 is fixedly connected to the cover plate body 371 and is located on one side of the cover plate body 371.
[0033] In this embodiment of the invention, the cover plate body 371 is used to cover the inner hoisting box 32 to protect the sand grains transported by the inner hoisting box 32 from being wetted by rainwater, which would affect the subsequent unloading of sand grains. The sealing ring 372 is provided to increase the airtightness of the cover plate body 371 and the outer hoisting box 31, so as to prevent rainwater from entering and wetting the sand grains through the gaps between the cover plate body 371 and the outer hoisting box 31 during operation on rainy days, which would affect the subsequent unloading of sand grains.
[0034] The above-disclosed embodiments are merely preferred embodiments of a hoisting drone for transporting construction materials, and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.
Claims
1. A hoisting drone for transporting construction materials, characterized in that, The device includes a drone body, a four-bar hook, and a buffer housing. The four-bar hook is attached to the bottom of the drone body, and the buffer housing is attached to the side of the four-bar hook away from the drone body. The buffer housing includes an outer housing, an inner housing, a buffer rod, a buffer plate, a hanging ring, an anti-detachment component, and a sealing cover. The outer hoisting box is located at the bottom of the drone body. The hanging ring is fixedly connected to the outer hoisting box and located at the top of the outer hoisting box. The buffer rod is fixedly connected to the outer hoisting box and located inside the outer hoisting box. The buffer plate is fixedly connected to the buffer rod and located on the side of the buffer rod away from the outer hoisting box. The inner hoisting box is fixedly connected to the buffer plate and located on the side of the buffer plate away from the buffer rod. The sealing cover is assembled on the top of the outer hoisting box. The anti-detachment component is located on one side of the hanging ring.
2. The unmanned aerial vehicle for transporting construction materials as described in claim 1, characterized in that, The buffer rod includes a top rod, a push plate, and a buffer pad. The top rod is fixedly connected to the outer hoisting box and is located inside the outer hoisting box. The buffer pad is fixedly connected to the buffer plate and is located on the side of the buffer plate away from the inner hoisting box. The push plate is fixedly connected to the top rod and to the buffer plate, and is located between the buffer plate and the top rod.
3. The unmanned aerial vehicle for transporting construction materials as described in claim 2, characterized in that, The push plate includes a push plate body and a telescopic rod. The telescopic rod is fixedly connected to the buffer plate and is located around the buffer pad. The push plate body is fixedly connected to the telescopic rod and to the top rod, and is located between the top rod and the telescopic rod.
4. The unmanned aerial vehicle for transporting construction materials as described in claim 1, characterized in that, The buffer plate includes a damping plate and a sponge pad. The damping plate is fixedly connected to the buffer pad and is located on one side of the buffer pad. The sponge pad is disposed between the damping plate and the inner hanging box.
5. The unmanned aerial vehicle for transporting construction materials as described in claim 1, characterized in that, The four-bar linkage hook includes a connecting chain and a hook. The connecting chain is attached to the bottom of the drone body, and the hook is fixedly connected to the connecting chain and attached to the hanging ring. The anti-detachment component is also included.
6. The unmanned aerial vehicle for transporting construction materials as described in claim 5, characterized in that, The anti-detachment component includes an anti-detachment cover and a connector. The connector is disposed around the hanging ring, and the anti-detachment cover is disposed on the connecting chain and threadedly connected to the connector, and is located on one side of the connecting chain.
7. The unmanned aerial vehicle for transporting construction materials as described in claim 1, characterized in that, The sealing cover plate includes a cover plate body and a sealing ring. The cover plate body is disposed on the top of the outer hoisting box, and the sealing ring is fixedly connected to the cover plate body and located on one side of the cover plate body.