Fire-fighting unmanned aerial vehicle water pipe connecting device

By incorporating a counterweight mechanism and an arc-shaped plate into the water pipe connection device of the fire-fighting drone, the balance problem of the drone during ascent was solved, improving flight stability and water flow, and enhancing the reliability of fire-fighting operations.

CN223934961UActive Publication Date: 2026-02-24SHANDONG HUASHI INTELLIGENT ROBOT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520501755.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-24
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Existing drone water pipe connection devices lack a counterweight mechanism, making it difficult for drones to maintain balance when ascending, thus affecting flight stability.

Method used

A counterweight mechanism is installed below the fixed ring, including a support rod, a crossbar, an arc plate, and a counterweight block. The balance of the device is maintained by adjusting the weight of the counterweight block, and an arc plate is installed above the crossbar to support the water pipe and prevent the water pipe from bending excessively.

Benefits of technology

This improved the stability of firefighting drones during flight, ensured smooth water flow, prevented water pipe bending, and enhanced the reliability of firefighting operations.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223934961U_ABST
    Figure CN223934961U_ABST
Patent Text Reader

Abstract

The utility model discloses a fire-fighting unmanned aerial vehicle water pipe connecting device which comprises an unmanned aerial vehicle lower fixing plate and a fixing ring, the fixing ring is installed on the lower wall of the unmanned aerial vehicle lower fixing plate, a water pipe is installed in the fixing ring in an inserted mode, a balance weight mechanism is installed on the lower wall of the fixing ring, and the balance weight mechanism comprises a supporting rod, a transverse rod, an arc-shaped plate and a balance weight block. A water pipe is arranged below the fixing ring, a counterweight mechanism is arranged below the fixing ring, one end of a supporting rod is installed on the lower wall of the fixing ring, a transverse rod is installed at the other end of the supporting rod, an arc-shaped plate is installed at one end of the transverse rod, the arc-shaped plate is arranged below the water pipe, and a counterweight block is installed at the other end of the transverse rod. And in addition, an arc-shaped plate is further arranged above the transverse rod, the water pipe can be supported through the arc-shaped plate, and the situation that the water pipe is excessively bent, and passing of water flow is affected is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This patent relates to the field of fire-fighting drones, specifically a water pipe connection device for fire-fighting drones. Background Technology

[0002] Firefighting drones are unmanned aircraft controlled by radio remote control equipment and onboard programs. They are mainly used in the field of fire rescue. As a new industrial technology, drone firefighting has been widely used in various fields. In China, many fire departments have successfully used drones to conduct fire scene reconnaissance and monitoring, and drop rescue supplies, with very obvious results.

[0003] At present, firefighting drones that need to be connected to water pipes have their water pipes fixed directly below the drone. The drone lifts the water pipe to a designated height, and then a water pump pumps water into the pipe, which is then sprayed out through nozzles to extinguish the fire.

[0004] However, existing drone water pipe connection devices can only fix the water pipe and do not have a counterweight mechanism. As the drone rises, the weight of the water pipe itself can easily cause the drone to lose its balance. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this patent is to provide a water pipe connection device for fire-fighting drones.

[0006] The technical solution adopted by this patent to solve its technical problem is: a water pipe connection device for fire-fighting drones, including a drone lower fixing plate and a fixing ring. The drone lower fixing plate is installed below the external fire-fighting drone. A fixing ring is installed on the lower wall of the drone lower fixing plate, and a water pipe is inserted into the fixing ring.

[0007] The lower wall of the fixed ring is equipped with a counterweight mechanism, which includes a support rod, a crossbar, an arc plate, and a counterweight block. One end of the support rod is installed on the lower wall of the fixed ring, and the other end of the support rod is equipped with a crossbar. One end of the crossbar is equipped with an arc plate, which is located below the water pipe. The other end of the crossbar is equipped with a counterweight block.

[0008] Furthermore, a fire nozzle is installed at the end of the water pipe. The fire nozzle includes a connecting pipe and a nozzle. The connecting pipe is sleeved on the outside of the end of the water pipe and inserted into a fixing ring. The outside of the connecting pipe is provided with external threads, and the nozzle is installed on the outside of the connecting pipe by rotating the threads.

[0009] Furthermore, a support block is installed on the upper wall of the arc-shaped plate, and the support block is attached to the lower wall of the water pipe.

[0010] Furthermore, the crossbar has an external thread on its outer side, and the counterweight includes a fixed sleeve, a threaded hole and a counterweight ring. The side wall of the fixed sleeve has a threaded hole, and the crossbar can be screwed into the threaded hole. The inner side wall of the fixed sleeve is fitted with a counterweight ring.

[0011] Furthermore, a fixing bolt is inserted and installed on the lower wall of the drone's lower fixing plate, and the fixing bolt is screwed into and installed on the lower wall of the external fire-fighting drone.

[0012] Furthermore, sealing rings are provided at the connections between the water pipe, the connecting pipe, and the water gun head.

[0013] The beneficial effects of this patent are:

[0014] This device improves its flight stability by installing a counterweight mechanism below its fixed ring, which allows it to maintain a balance of forces on both sides of the device by adjusting the weight of the counterweight block in the counterweight mechanism.

[0015] In addition, an arc-shaped plate is installed above the crossbar of this device. The arc-shaped plate can support the water pipe and prevent the water pipe from being bent excessively, which would affect the flow of water. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this patent.

[0017] Figure 2 This is a schematic diagram of the counterweight mechanism of this patent.

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the counterweight block in this patent.

[0019] Explanation of reference numerals in the attached drawings: 1. Lower mounting plate for UAV; 2. Fixing ring; 3. Water pipe; 4. Counterweight mechanism; 41. Support rod; 42. Crossbar; 43. Arc plate; 44. Counterweight block; 5. Fire nozzle head; 51. Connecting pipe; 52. Fire nozzle head; 6. Support block; 7. Fixing bolt; 441. Fixing sleeve; 442. Threaded hole; 443. Counterweight ring. Detailed Implementation

[0020] The present patent is further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the patent. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art can make various alterations or modifications to this patent, and these equivalent forms also fall within the scope defined by the appended claims.

[0021] See Figure 1 , Figure 2 , Figure 3This is a schematic diagram of the structure of this patent. A water pipe connection device for a fire-fighting drone includes a drone lower fixing plate 1 and a fixing ring 2. The drone lower fixing plate 1 is installed below the external fire-fighting drone. The fixing ring 2 is installed on the lower wall of the drone lower fixing plate 1. A water pipe 3 is inserted into the fixing ring 2.

[0022] After fixing the lower mounting plate 1 of the drone to the bottom of the fire-fighting drone with fixing bolts 7, and then fixing the water pipe 3 to the fixing ring 2 through the fire nozzle 5, the fire-fighting drone can take off and move to the fire location. Then the external water pump can be started to pump water into the water pipe 3 and spray it out through the fire nozzle 5 to extinguish the fire.

[0023] A counterweight mechanism 4 is installed on the lower wall of the fixed ring 2. The counterweight mechanism 4 includes a support rod 41, a crossbar 42, an arc plate 43, and a counterweight block 44. One end of the support rod 41 is installed on the lower wall of the fixed ring 2, and the other end of the support rod 41 is installed with the crossbar 42. One end of the crossbar 42 is installed with the arc plate 43, which is located below the water pipe 3. The other end of the crossbar 42 is installed with the counterweight block 44.

[0024] Because the water pipe 3 has a certain weight, and there will also be a certain recoil force when spraying water, in order to make the fire-fighting drone equipped with this device fly more stably, a counterweight mechanism 4 is set below the fixed ring 2 of this device. By setting the counterweight block 44, the weight of the counterweight block 44 in the counterweight mechanism 4 can be adjusted to ensure that the forces on both sides of this device are kept as balanced as possible, thereby improving the stability of the fire-fighting drone equipped with this device when flying.

[0025] A fire nozzle 5 is installed at the end of the water pipe 3. The fire nozzle 5 includes a connecting pipe 51 and a nozzle 52. The connecting pipe 51 is sleeved on the outside of the end of the water pipe 3. The connecting pipe 51 is inserted into the fixing ring 2. The outside of the connecting pipe 51 is provided with external threads. The nozzle 52 is installed on the outside of the connecting pipe 51 by rotating the threads.

[0026] A support block 6 is installed on the upper wall of the arc plate 43, and the support block 6 is attached to the lower wall of the water pipe 3;

[0027] The curved plate 43 and the support block 6 above can support the water pipe 3, preventing the water pipe 3 from being bent excessively and affecting the flow of water.

[0028] The crossbar 42 has an external thread on its outer side. The counterweight 44 includes a fixed sleeve 441, a threaded hole 442 and a counterweight ring 443. The side wall of the fixed sleeve 441 has a threaded hole 442. The crossbar 42 can be screwed into the threaded hole 442. The counterweight ring 443 is inserted into the inner side wall of the fixed sleeve 441.

[0029] By adding or removing the counterweight ring 443, the weight of the counterweight block 44 can be adjusted. At the same time, the counterweight ring 443 is sleeved on the outside of the crossbar 42, which can effectively prevent the counterweight ring 443 from falling off.

[0030] A fixing bolt 7 is inserted into the lower wall of the drone's lower mounting plate 1, and the fixing bolt 7 is screwed into the lower wall of the external fire-fighting drone.

[0031] Sealing rings are provided at the connections between water pipe 3, connecting pipe 51 and water gun head 52;

[0032] By using a sealing ring, water leakage can be prevented at the connection between water pipe 3, connecting pipe 51 and water gun head 52.

[0033] When this patent is working, after fixing the lower fixing plate 1 of the drone to the bottom of the fire-fighting drone with fixing bolts 7, and then fixing the water pipe 3 to the fixing ring 2 through the fire nozzle 5, the fire-fighting drone can take off and move to the fire position. Then the external water pump can be started to pump water into the water pipe 3, and then sprayed out through the fire nozzle 5 to extinguish the fire.

[0034] Because the water pipe 3 has a certain weight, and there will also be a certain recoil force when spraying water, in order to make the fire-fighting drone equipped with this device fly more stably, a counterweight mechanism 4 is set below the fixed ring 2 of this device. By setting the counterweight block 44, the weight of the counterweight block 44 in the counterweight mechanism 4 can be adjusted to ensure that the forces on both sides of this device are kept as balanced as possible, thereby improving the stability of the fire-fighting drone equipped with this device when flying.

[0035] It will be apparent to those skilled in the art that this patent is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this patent. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this patent is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this patent. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water pipe connection device for a fire-fighting drone, comprising a lower fixing plate (1) and a fixing ring (2) for the drone, characterized in that: The lower fixing plate (1) of the drone is installed below the external fire-fighting drone. A fixing ring (2) is installed on the lower wall of the lower fixing plate (1), and a water pipe (3) is inserted into the fixing ring (2). The lower wall of the fixed ring (2) is equipped with a counterweight mechanism (4). The counterweight mechanism (4) includes a support rod (41), a crossbar (42), an arc plate (43), and a counterweight block (44). One end of the support rod (41) is installed on the lower wall of the fixed ring (2), and the other end of the support rod (41) is equipped with a crossbar (42). One end of the crossbar (42) is equipped with an arc plate (43). The arc plate (43) is located below the water pipe (3), and the other end of the crossbar (42) is equipped with a counterweight block (44).

2. The water pipe connection device for fire-fighting drones according to claim 1, characterized in that: A fire nozzle (5) is installed at the end of the water pipe (3). The fire nozzle (5) includes a connecting pipe (51) and a nozzle (52). The connecting pipe (51) is sleeved and installed on the outside of the end of the water pipe (3). The connecting pipe (51) is inserted and installed in the fixing ring (2). The outside of the connecting pipe (51) is provided with an external thread. The nozzle (52) is installed on the outside of the connecting pipe (51) by rotating the thread.

3. The water pipe connection device for fire-fighting drones according to claim 1, characterized in that: The upper wall of the arc plate (43) is fitted with a support block (6), which is attached to the lower wall of the water pipe (3).

4. The water pipe connection device for fire-fighting drones according to claim 1, characterized in that: The crossbar (42) has an external thread on its outer side. The counterweight (44) includes a fixed sleeve (441), a threaded hole (442), and a counterweight ring (443). The side wall of the fixed sleeve (441) has a threaded hole (442). The crossbar (42) can be screwed into the threaded hole (442). The inner side wall of the fixed sleeve (441) is fitted with a counterweight ring (443).

5. A water pipe connection device for fire-fighting drones according to claim 1, characterized in that: A fixing bolt (7) is inserted into the lower wall of the lower fixing plate (1) of the UAV, and the fixing bolt (7) is screwed into the lower wall of the external fire-fighting UAV.

6. A water pipe connection device for fire-fighting drones according to claim 2, characterized in that: A sealing ring is provided at the connection between the water pipe (3), the connecting pipe (51) and the water gun head (52).