Helicopter fire-fighting bucket water discharge amount detection device

Abstract

The present application relates to the technical fields of liquid capacity detection, and especially relates to a device for detecting the water spraying capacity of a fire-fighting bucket of a helicopter. The device comprises a supporting unit, a detecting unit and a driving motor. The detecting unit is arranged at the upper and lower ends of the supporting unit. The supporting unit is used for supporting the inner sidewall of the bucket. The upper end of the detecting unit is used as a switch for the water inlet of the bucket, and the lower end is used as a switch for the water outlet of the bucket. The driving motor is fixedly installed between the top of the bucket and the belly hanging point. The output shaft of the driving motor drives the opening and closing of the switch for the water inlet of the bucket or the switch for the water outlet of the bucket.

Description

Technical Field

[0001] This invention relates to the field of liquid volume detection technology, and in particular to a device for detecting the amount of water sprayed from a helicopter fire extinguishing bucket. Background Technology

[0002] Helicopter firefighting buckets carry water in external buckets and spray it directly from the air onto the fire front and fire line to extinguish it. This method can quickly reduce the intensity of the fire, reduce the intensity of the confrontation for ground firefighters, and avoid personnel casualties. Bucket firefighting requires good water source conditions, including clear airspace conditions, water area, water depth, no obstacles in the water, and suitable water source altitude and distance from the fire. Before carrying out bucket firefighting, it is necessary to conduct aerial and ground water source surveys, inspect the bucket equipment, formulate a firefighting plan, calculate relevant flight parameters, select appropriate water intake and spraying points, control flight speed and spraying altitude, and coordinate with ground personnel. When helicopter firefighting buckets are used for water spraying, the pilot or operator needs to monitor the water volume of the firefighting bucket in real time to make reasonable arrangements for the firefighting plan. The water volume detection device is one of the indispensable devices.

[0003] Patent No. CN201610761112.8 discloses an automatic detection device for the water volume of the upper and lower spray plates of a fire sprinkler head, including an upper water collection chamber and a lower water collection chamber, with a sprinkler head disposed between the upper and lower water collection chambers; a weighing device is respectively provided at the lower end of the upper and lower water collection chambers, and the weighing device is connected to the sprinkler head through a circulation pipeline, with a booster pump installed on the circulation pipeline; the booster pump is connected to a display PLC controller. Furthermore, the weighing device includes a weighing container and an electronic scale located at the lower end of the weighing container. The bottom of the weighing container is connected to a circulating water tank via a water outlet pipe. The circulating water tank is connected to one end of a circulating pipeline, and the other end of the circulating pipeline is connected to a sprinkler head. The sprinkler head is located in a circular hole in the middle of the partition between the upper and lower water collection chambers, with a diameter of 400 mm. A laser beam light source is installed inside the partition, and this laser beam light source is tangent to the arc-shaped top surface of the sprinkler head's splash plate. Furthermore, the circulating pipeline includes a return water pipe connected to the circulating water tank, which is connected to a booster pump. The booster pump is connected to a vertical pipe, which is connected to a horizontal pipe via a right-angle elbow. The horizontal pipe is fixedly connected to the lower water collection chamber via a flange. A pressure sensor is installed on the horizontal pipe, and the pressure sensor is connected to a display PLC controller.

[0004] The aforementioned patent enables an automatic detection device for water spray volume, overcoming the shortcomings of existing technologies; however, during wildfire operations, drivers or operators cannot detect the residual water volume in the fire extinguishing bucket by observing the discoloration of the electroplated aluminum oxide layer due to high temperatures, thus avoiding the occurrence of insensitivity or damage to precision instruments in high-temperature environments. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a helicopter fire extinguishing bucket water spray volume detection device to solve the problem that the driver or operator cannot observe the residual water volume in the fire extinguishing bucket.

[0006] The technical solution of the present invention is

[0007] A device for detecting the water spray volume of a helicopter fire-fighting bucket is provided, comprising: a support unit, a detection unit, and a drive motor;

[0008] The support unit has detection units inserted at both ends; the support unit is used to support the inner wall of the bucket; the upper end of the detection device serves as the switch for the bucket inlet and the lower end serves as the switch for the bucket outlet; the drive motor is fixedly installed between the top of the bucket and the hanging point on the belly of the machine, and the output shaft of the drive motor drives the opening and closing of the switch for the bucket inlet or the switch for the bucket outlet.

[0009] Furthermore, the detection unit includes an adjustment mechanism and a connecting rod that is clamped and installed on the inner wall of the clamping member;

[0010] The top outer end wall of the connecting rod is provided with a ring array of pushing fan blades, and an auxiliary mechanism is installed at the top of the connecting rod.

[0011] Furthermore, the adjustment mechanism includes a push rod and a coupling disposed at the bottom of the push rod. The outer ring of the coupling is provided with a connecting strip in an annular array, and a blocking chassis is installed on the outer end face of the connecting strip. The upper end face of the blocking chassis is provided with an electroplated aluminum oxide layer that can change color at high temperature.

[0012] The auxiliary mechanism includes a central control block and a ring array of transverse support bars mounted on the outer end face of the central control block. Each set of transverse support bars has an upper cover plate at both ends.

[0013] The push rod is vertically connected to the bottom of the connecting component from bottom to top, enabling the adjustment mechanism, stabilization mechanism, linkage mechanism and the connecting rod to work together.

[0014] The output end of the drive motor is connected to the push rod via a longitudinal transmission rod.

[0015] Furthermore, the support unit includes a series mechanism and a linkage mechanism interposed in the inner cavity of the series mechanism. A transverse support mechanism is interposed at both ends of the series mechanism, and a stabilizing mechanism is provided at the lower edge of the transverse support mechanism. A connecting rod is interposed at the other two ends of the series mechanism, and the other end of the connecting rod is attached to the inner wall of the protective ring.

[0016] Furthermore, the series mechanism includes a series disk and a hollow cavity opened in the middle of the series disk. Edge openings are provided on both sides of the outer end face of the series disk, and series cross cylinders are inserted on the other two sides of the outer end face of the series disk.

[0017] Furthermore, the linkage mechanism includes a linkage cylinder and an assembly plate installed on the upper end face of the linkage cylinder, and clamping members are arranged in a ring array on the top surface of the assembly plate.

[0018] Furthermore, the transverse support mechanism includes a support cylinder and a reinforcing plate that transversely inserts into the inner cavity of the support cylinder. A reinforcing plate is provided at the middle position of the upper and lower ends of the reinforcing plate, and the other end of the reinforcing plate is attached to the inner wall of the support cylinder.

[0019] Furthermore, the side end faces of the reinforcing plate and the strengthening plate are attached to the inner end wall of the protective ring, and the outer end face of the connecting rod is also attached to the inner end wall of the protective ring, so that the transverse support mechanism and the connecting rod can support the protective ring from the inside out.

[0020] Furthermore, the supporting cross cylinder is laterally inserted into the inner cavity of the edge opening, making the serial mechanism and the lateral support mechanism a whole.

[0021] Furthermore, the stabilizing mechanism includes a reinforcing block and a connecting member installed at the bottom of the reinforcing block. The outer end wall of the connecting member is provided with a coordinating frame. The two sets of coordinating frames are movably connected by a coordinating connecting belt. An elastic cylinder is provided on the upper end face of the reinforcing block. The elastic cylinder is inserted into the inner cavity of the linkage cylinder from bottom to top.

[0022] The beneficial effects of this application are as follows:

[0023] 1. To avoid the fire extinguishing bucket being damaged due to its limited load-bearing capacity caused by excessive weight of water poured in, and to provide additional stability to the fire extinguishing bucket during helicopter hoisting operations due to the disordered airflow at high altitudes.

[0024] 2. Water flows through the gap between the coupling and the blocking chassis due to water pressure, thus achieving the water spraying effect. The water spraying situation in the fire extinguishing bucket can be observed directly through the gap of the top cover.

[0025] 3. The inner walls of the blocking chassis and protective ring are all electroplated with aluminum. Since the working environment of helicopter fire-fighting buckets is mostly in fire-fighting locations that are not easily accessible to humans, such as mountainsides or valleys, the fires are often large. Because helicopters cannot operate at extremely high altitudes, they must operate at low altitudes to deliver fire-fighting water to the required area. Due to the high temperature above the fire, the water in the fire-fighting bucket can effectively cool and protect its structure and overall device. However, once the helicopter reaches the work site, the water level in the fire-fighting bucket continuously drops as it is exposed to the high temperature environment. This makes the oxide layer of the electroplated aluminum more visible. The pilot or operator can easily observe the water volume in the fire-fighting bucket through the gaps in the top cover at visual distance. The pilot or operator can detect the remaining water volume in the fire-fighting bucket by observing the discoloration of the electroplated aluminum oxide layer due to high temperatures. This prevents precision instruments from malfunctioning or being damaged in high-temperature environments, allowing the pilot or operator to rationally plan the fire-fighting operation.

[0026] 4. The combined structure of the coordination frame and the coordination connecting belt can move synchronously when the overall mechanism deforms, ensuring that the movement of each part is coordinated and consistent. This combined structure helps to maintain the overall stability and reduces the risk of structural damage or functional failure caused by deformation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a helicopter fire-fighting bucket water spray volume detection device proposed in this invention.

[0028] Figure 2 This is a three-dimensional structural schematic diagram of a helicopter fire-fighting bucket water spray volume detection device proposed in this invention.

[0029] Figure 3 This is a schematic diagram of the support unit structure of a helicopter fire-fighting bucket water spray volume detection device proposed in this invention;

[0030] Figure 4 This is a schematic diagram of the serial mechanism structure of a helicopter fire-fighting bucket water spray volume detection device proposed in this invention;

[0031] Figure 5 This is a schematic diagram of the linkage mechanism of a helicopter fire-fighting bucket water spray volume detection device proposed in this invention;

[0032] Figure 6 This is a schematic diagram of the lateral support mechanism of a helicopter fire-fighting bucket water spray volume detection device proposed in this invention;

[0033] Figure 7This is a schematic diagram of the stabilization mechanism of a helicopter fire-fighting bucket water spray volume detection device proposed in this invention;

[0034] Figure 8 This is a schematic diagram of the adjustment mechanism of a helicopter fire-fighting bucket water spray volume detection device proposed in this invention;

[0035] Figure 9 This is a schematic diagram of the connecting rod, the pushing fan, and the auxiliary mechanism of a helicopter fire extinguishing bucket water spray volume detection device proposed in this invention.

[0036] In the diagram: 1. Support unit; 11. Series mechanism; 111. Series plate; 112. Hollow cavity; 113. Edge opening; 114. Series cross cylinder; 12. Linkage mechanism; 121. Linkage cylinder; 122. Assembly plate; 123. Clamping component; 13. Lateral support mechanism; 131. Support cross cylinder; 132. Reinforcing plate; 133. Strengthening plate; 14. Stabilizing mechanism; 141. Strengthening block; 142. Linking component; 143. Coordinating frame; 144. 1. Coordinating connecting belt; 145. Elastic cylinder; 15. Connecting rod; 16. Protective ring; 2. Detection unit; 21. Adjustment mechanism; 211. Push rod; 212. Coupling; 213. Connecting belt; 214. Blocking chassis; 22. Connecting rod; 23. Push fan blade; 24. Auxiliary mechanism; 241. Central control block; 242. Transverse support bar; 243. Top cover plate; 3. Drive motor; 4. Bucket; 5. Underbody hanging point; 6. Longitudinal transmission rod. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] This invention provides a helicopter fire-fighting bucket water spray volume detection device, including a support unit, a detection unit, and a drive motor. The detection unit is interspersed at both ends of the support unit. The detection unit includes an adjustment mechanism and a connecting rod clamped and installed on the inner wall of the clamping member. Push fan blades are arranged in a ring array on the top outer wall of the connecting rod. An auxiliary mechanism is installed at the top of the connecting rod. The drive motor is fixedly installed between the top of the bucket and the hanging point on the fuselage. The output shaft of the drive motor drives the opening and closing of the switch of the bucket water inlet or the switch of the bucket water outlet.

[0039] The adjustment mechanism includes a push rod and a coupling located at the bottom of the push rod. The outer ring of the coupling is arranged in a ring array with connecting bands. A blocking base is installed on the outer end face of the connecting bands. When the operator observes that the electroplated aluminum oxide layer on the upper surface of the blocking base has changed color, it indicates that the fire-fighting water in the fire extinguishing tank has been completely discharged. The operator remotely controls an external drive motor to push the push rod downwards, closing the gap between the coupling and the blocking base. At this point, the upper cover plate returns to its initial state after the upward thrust of the push fan blades ends. The arranged upper cover plates cover the top of the fire extinguishing tank, preventing particulate matter of various sizes produced by the combustion of wood and other organic materials from entering the fire extinguishing tank, protecting the internal structure of the tank and extending the service life of the equipment. Here, the drive motor is connected to the push rod via a longitudinal transmission rod; the longitudinal transmission rod can be a screw, steel cable, or chain drive structure. When the drive motor is working, the longitudinal transmission rod mechanism moves up and down, thereby driving the push rod to move up and down, realizing the opening and closing of the blocking base and the coupling.

[0040] Preferably, the auxiliary mechanism includes a central control block and a ring array of transverse support bars installed on the outer end face of the central control block. Each set of transverse support bars has an upper cover plate at both ends. The entire device is inserted through the fire extinguishing bucket. Since most fire extinguishing buckets are funnel-shaped, the outer end face of the protective ring can fit against the inner wall of the fire extinguishing bucket. At this time, the adjusting mechanism is pressed against the bottom outlet of the fire extinguishing bucket, and the auxiliary mechanism covers the upper inlet of the fire extinguishing bucket.

[0041] When water needs to be poured into the fire extinguishing bucket, the bottom of the bucket is placed on a flat surface. An external drive motor pushes a lever, causing the base and coupling to close. In this closed state, the bottom space of the bucket becomes a load-bearing structure, optimizing its use and increasing storage capacity. Workers can manually pry one or more top covers upwards, using the sides of the horizontal support bars as fulcrums. Water then seeps through the gaps between adjacent top covers and into the inner cavity of the bucket, storing the water. This automatic closure of the bottom of the bucket simplifies the process of pouring water.

[0042] Preferably, the push rod is vertically connected to the bottom of the connecting member from bottom to top, enabling the adjustment mechanism, stabilization mechanism, linkage mechanism, and connecting rod to work together. After completing the water-filling task, the fire extinguishing bucket is suspended on the helicopter's sling. When the helicopter arrives at the water-spraying area, the external drive motor applies upward thrust to the coupling. At this time, the outer end face of the coupling expands at the gap between the connecting belt and the blocking chassis. Water flows through the gap between the coupling and the blocking chassis due to water pressure, thus achieving the water-spraying effect. At this time, because the push rod is in the coupling... The synchronous movement under the push, the connecting parts give the reinforcing block and the elastic cylinder an upward pushing force. Due to the elasticity of the elastic cylinder itself, it elastically impacts the inner cavity of the linkage cylinder. The connecting rod under the clamping action of the clamping parts moves synchronously. Under the linkage action, the connecting rod pushes the fan blades upward to open the two sets of adjacent upper cover plates, so that the multiple sets of upper cover plates are in an upward bending state. During the operation of the fire extinguishing bucket water spraying, the driver or operator in the cab can directly observe the water spraying situation in the fire extinguishing bucket by visually looking through the gap of the upper cover plates.

[0043] Preferably, the support unit includes a series mechanism and a linkage mechanism inserted into the inner cavity of the series mechanism. A transverse support mechanism is inserted at both ends of the series mechanism, and a stabilizing mechanism is provided at the lower edge of the transverse support mechanism. A connecting rod is inserted at the other two ends of the series mechanism, and the other end of the connecting rod is attached to the inner wall of the protective ring.

[0044] Preferably, the series mechanism includes a series plate and a hollow cavity opened in the middle of the series plate. Edge openings are provided on both sides of the outer end face of the series plate, and series cross cylinders are inserted on the other two sides of the outer end face of the series plate. The support structure formed by the set transverse support mechanism, series cross cylinders, connecting rod and protective ring can support the middle position of the inner cavity wall of the fire extinguishing bucket from the inside to the outside, thereby avoiding the fire extinguishing bucket from being damaged due to its limited load-bearing capacity because of the excessive weight of the poured water. In addition, during the helicopter hoisting operation, the disorder of airflow during high-altitude operation provides additional stability to the fire extinguishing bucket.

[0045] Preferably, the linkage mechanism includes a linkage cylinder and an assembly plate installed on the upper end face of the linkage cylinder, and clamping members are arranged in a ring array on the top surface of the assembly plate.

[0046] Preferably, the transverse support mechanism includes a support cylinder and a reinforcing plate that transversely inserts into the inner cavity of the support cylinder. The reinforcing plate is provided with a reinforcing plate at the middle position of its upper and lower ends, and the other end of the reinforcing plate is attached to the inner wall of the support cylinder.

[0047] Preferably, the side faces of the reinforcing plate and the strengthening plate are attached to the inner end wall of the protective ring, and the outer end face of the connecting rod is also attached to the inner end wall of the protective ring, so that the lateral support mechanism and the connecting rod can support the protective ring from the inside out. The blocking chassis and the inner cavity wall of the protective ring are both electroplated with aluminum. Because the working environment of helicopter fire-fighting buckets is mostly in fire-fighting locations that are not easily accessible to humans, such as mountainsides or valleys, the fires are often large, and helicopters cannot operate at very high altitudes when watering; they need to operate at low altitudes to deliver the fire-fighting water to the required area. Because the temperature above the fire is high, the water in the fire-fighting bucket can... While the system effectively cools and protects its own structure and overall equipment, once the helicopter reaches the airspace above the work site, the water level in the fire extinguishing bucket continues to drop as the water is continuously sprayed. Exposed to a high-temperature environment, the oxide layer of the electroplated aluminum becomes more prominent. The water volume in the fire extinguishing bucket can be easily observed through the gaps in the top cover at the pilot's or operator's visual distance. The pilot or operator can detect the remaining water volume in the fire extinguishing bucket by observing the discoloration of the electroplated aluminum oxide layer due to high temperatures. This can prevent precision instruments from becoming insensitive or damaged in high-temperature environments, allowing the pilot or operator to rationally plan the fire extinguishing operation.

[0048] Preferably, the supporting cross cylinder is inserted laterally into the inner cavity of the edge opening, so that the serial mechanism and the lateral support mechanism become a whole.

[0049] Preferably, the stabilizing mechanism includes a reinforcing block and a connecting member installed at the bottom of the reinforcing block. The outer end wall of the connecting member is provided with a coordinating frame, and the two sets of coordinating frames are movably connected by a coordinating connecting belt. An elastic cylinder is provided on the upper end face of the reinforcing block, and the elastic cylinder is inserted into the inner cavity of the linkage cylinder from bottom to top. The combination structure of the coordinating frame and the coordinating connecting belt can move synchronously when the stabilizing mechanism deforms as a whole, ensuring that the movement of each part is coordinated and consistent. This combination structure helps to maintain the overall stability and reduces the risk of structural damage or functional failure caused by deformation.

[0050] Reference Figures 1-9 Example 1: A helicopter fire extinguishing bucket water spray volume detection device includes a support unit 1, a detection unit 2, and a drive motor 3. The detection unit 2 is inserted into the upper and lower ends of the support unit 1. The detection unit 2 includes an adjustment mechanism 21 and a connecting rod 22 clamped and installed on the inner wall of the clamping member 123. Push fan blades 23 are arranged in a ring array on the top outer wall of the connecting rod 22. An auxiliary mechanism 24 is installed at the top of the connecting rod 22. The drive motor 3 is fixedly installed between the top of the bucket 4 and the fuselage hanging point 5. The output shaft of the drive motor drives the opening and closing of the switch of the bucket water inlet or the switch of the bucket water outlet.

[0051] The adjustment mechanism 21 includes a push rod 211 and a coupling 212 located at the bottom of the push rod 211. A connecting belt 213 is arranged in a ring array on the outer ring of the coupling 212. A blocking base 214 is installed on the outer end face of the connecting belt 213. When the operator observes that the electroplated aluminum oxide layer on the upper end face of the blocking base 214 has changed color, it can be determined that the fire-fighting water in the fire extinguishing bucket has been completely discharged. The operator remotely controls an external drive motor to push the push rod 211 downwards, causing the coupling 212 and the blocking base 214 to close at the gap. At this time, the upper cover 243 returns to its initial state after the upward thrust of the push fan 23 ends. The upper cover 243, arranged in a specific pattern, covers the top of the fire extinguishing bucket, preventing particulate matter of various sizes produced by the combustion of wood and other organic materials from entering the fire extinguishing bucket, protecting the internal structure of the bucket, and extending the service life of the equipment. Here, the drive motor 3 is connected to the push rod via a longitudinal transmission rod; the longitudinal transmission rod can be a screw, cable, or chain drive structure. When the drive motor is working, the longitudinal transmission rod mechanism moves up and down, thereby driving the push rod to move up and down, realizing the opening and closing of the blocking chassis and the coupling. The output end of the drive motor is connected to the longitudinal transmission rod, which extends longitudinally to the top of the push rod 211 through the hollow central control block 241 and the connecting rod 22, and is connected to the push rod. When the motor is working, the longitudinal transmission rod mechanism moves up and down, thereby driving the push rod 211 to move up and down, realizing the opening and closing of the blocking chassis 214 and the coupling 212.

[0052] In Example 2, the auxiliary mechanism 24 includes a central control block 241 and a ring array of transverse support bars 242 installed on the outer end face of the central control block 241. Each set of transverse support bars 242 has an upper cover plate 243 at both ends. The entire device is inserted through into the fire extinguishing bucket. Since most fire extinguishing buckets are funnel-shaped, the outer end face of the protective ring 16 can fit against the inner wall of the fire extinguishing bucket. At this time, the adjusting mechanism 21 abuts against the bottom outlet of the fire extinguishing bucket, and the auxiliary mechanism 24 covers the upper inlet of the fire extinguishing bucket.

[0053] When it is necessary to pour clean water into the fire extinguishing bucket, the bottom of the fire extinguishing bucket is placed on a flat ground. The external drive motor pushes the push rod 211 downward, so that the blocking chassis 214 and the coupling 212 are in a closed state. In the closed state, the bottom space of the fire extinguishing bucket becomes a load-bearing carrier, which optimizes the use of the bottom space of the bucket and increases the storage capacity. The staff can manually pry one or more sets of top cover plates 243 upward, so that they can be pried upward with the two sides of the horizontal support bar 242 as fulcrum. At this time, clean water can penetrate the gaps between the adjacent top cover plates 243 and enter the inner cavity of the fire extinguishing bucket downward, which can store the clean water introduced into the fire extinguishing bucket and realize the automatic closure of the bottom of the fire extinguishing bucket, simplifying the process of pouring clean water into the bucket.

[0054] In Example 3, the push rod 211 is vertically connected from bottom to top to the bottom of the connecting member 142, enabling the adjustment mechanism 21, stabilizing mechanism 14, linkage mechanism 12, and connecting rod 22 to work together. After completing the water-filling task, the fire extinguishing bucket is suspended on the helicopter's sling. When the helicopter arrives at the water-spraying area, the external drive motor pushes the coupling 212 upwards. At this time, the outer end face of the coupling 212 expands at the gap where it is connected to the blocking chassis 214 via the connecting belt 213. The water flow pours through the gap between the coupling 212 and the blocking chassis 214 due to water pressure, thereby achieving the water-spraying effect. At this time, because the push rod 211 is in the coupling 21... Driven by 2, the synchronous movement of the connecting member 142 provides an upward pushing force to the reinforcing block 141 and the elastic cylinder 145. Due to the elastic force of the elastic cylinder 145 itself, it elastically impacts the inner cavity of the linkage cylinder 121. Under the clamping action of the clamping member 123, the connecting rod 22 moves synchronously. Under the linkage action, the connecting rod 22 pushes the fan blade 23 to open up the two sets of adjacent upper cover plates 243, so that the multiple sets of upper cover plates 243 are in an upward bending state. During the water spraying operation of the fire extinguishing bucket, the driver or operator in the cab can directly observe the water spraying situation in the fire extinguishing bucket by visually looking through the gap of the upper cover plate 243.

[0055] Example 4: The support unit 1 includes a series mechanism 11 and a linkage mechanism 12 that is inserted into the cavity of the series mechanism 11. A transverse support mechanism 13 is inserted into both ends of the series mechanism 11. A stabilizing mechanism 14 is provided at the lower edge of the transverse support mechanism 13. A connecting rod 15 is inserted into the other two ends of the series mechanism 11. The other end of the connecting rod 15 is attached to the inner wall of the protective ring 16.

[0056] The series mechanism 11 includes a series plate 111 and a hollow cavity 112 opened in the middle of the series plate 111. Edge openings 113 are provided on both sides of the outer end face of the series plate 111. Series cross cylinders 114 are inserted through the other two sides of the outer end face of the series plate 111. The support structure formed by the lateral support mechanism 13, the series cross cylinders 114, the connecting rod 15 and the protective ring 16 can support the middle position of the inner cavity wall of the fire extinguishing bucket from the inside out, thereby avoiding the fire extinguishing bucket from being damaged due to its limited load-bearing capacity because of the excessive weight of the poured water. In addition, during the helicopter hoisting operation, the disorder of the airflow during high-altitude operations provides additional stability to the fire extinguishing bucket.

[0057] Example 5: The linkage mechanism 12 includes a linkage cylinder 121 and an assembly plate 122 installed on the upper end face of the linkage cylinder 121. Clamping members 123 are arranged in a ring array on the top surface of the assembly plate 122. The transverse support mechanism 13 includes a supporting horizontal cylinder 131 and a reinforcing plate 132 that transversely inserts into the inner cavity of the supporting horizontal cylinder 131. A reinforcing plate 133 is provided at the middle position of both the upper and lower ends of the reinforcing plate 132. The other end of the reinforcing plate 133 is attached to the inner wall of the supporting horizontal cylinder 131. The side end faces of the reinforcing plate 132 and the reinforcing plate 133 are attached to the inner end wall of the protective ring 16. The outer end face of the connecting rod 15 is also attached to the inner end wall of the protective ring 16, enabling the transverse support mechanism 13 and the connecting rod 15 to support the protective ring 16 from the inside out. The blocking chassis 214 and the inner wall of the protective ring 16 are both electroplated with aluminum. Since the working environment of helicopter fire-fighting buckets is mostly in fire-fighting locations that are not easily accessible to humans, and mostly in mountainous areas... At mid-levels or in valleys, the fire is quite large, and helicopters cannot operate at extremely high altitudes for water spraying. Low-altitude operations are necessary to effectively deliver water to the required areas. While the high temperatures above the fire area allow the water in the fire bucket to cool and protect the structure and equipment, the water level in the bucket continues to drop as the helicopter reaches the work site. Exposed to the high temperatures, the oxide layer on the electroplated aluminum becomes more prominent. The water level in the fire bucket can be easily observed through the gaps in the top cover 243 at the pilot's or operator's visual distance. By observing the discoloration of the electroplated aluminum oxide layer due to high temperatures, the pilot or operator can detect the remaining water level in the fire bucket, preventing malfunctions or damage to precision instruments in high-temperature environments. This allows the pilot or operator to rationally plan the firefighting operation.

[0058] In Example 6, the supporting horizontal cylinder 131 is laterally inserted into the inner cavity of the edge opening 113, making the series mechanism 11 and the horizontal support mechanism 13 a whole. The stabilizing mechanism 14 includes a reinforcing block 141 and a connecting member 142 installed at the bottom of the reinforcing block 141. The outer end wall of the connecting member 142 is provided with a coordinating frame 143. The two sets of coordinating frames 143 are movably connected by a coordinating connecting belt 144. The upper end face of the reinforcing block 141 is provided with an elastic cylinder 145. The elastic cylinder 145 is inserted into the inner cavity of the linkage cylinder 121 from bottom to top. The combined structure of the coordinating frame 143 and the coordinating connecting belt 144 can move synchronously when the stabilizing mechanism 14 deforms as a whole, ensuring that the movement of each part is coordinated and consistent. This combined structure helps to maintain the overall stability and reduces the risk of structural damage or functional failure caused by deformation.

[0059] In summary: A helicopter fire extinguishing bucket water spray volume detection device includes a support unit 1 and a detection unit 2. The detection unit 2 is inserted through the upper and lower ends of the support unit 1. The detection unit 2 includes an adjustment mechanism 21 and a connecting rod 22 clamped and installed on the inner wall of the clamping member 123. The top outer wall of the connecting rod 22 is arranged with a ring array of pushing fan blades 23. An auxiliary mechanism 24 is installed at the top of the connecting rod 22. The entire device is inserted through into the fire extinguishing bucket. Since most fire extinguishing buckets are funnel-shaped, the outer end face of the protective ring 16 can fit against the inner wall of the fire extinguishing bucket. At this time, the adjustment mechanism 21 abuts against the bottom water outlet of the fire extinguishing bucket, and the auxiliary mechanism 24 covers the upper water inlet of the fire extinguishing bucket.

[0060] When it is necessary to pour clean water into the fire extinguishing bucket, the bottom of the fire extinguishing bucket is placed on a flat ground. The external drive motor pushes the push rod 211 downward, so that the blocking chassis 214 and the coupling 212 are in a closed state. In the closed state, the bottom space of the fire extinguishing bucket becomes a load-bearing carrier, which optimizes the use of the bottom space of the bucket and increases the storage capacity. The staff can manually pry one or more sets of top cover plates 243 upward, so that they can be pried upward with the two sides of the horizontal support bar 242 as fulcrum. At this time, clean water can penetrate the gap between the adjacent top cover plates 243 and enter the inner cavity of the fire extinguishing bucket downward, which can store the clean water introduced into the fire extinguishing bucket and realize the automatic closure of the bottom of the fire extinguishing bucket, simplifying the process of pouring clean water into the bucket.

[0061] The support structure formed by the horizontal support mechanism 13, the series horizontal cylinder 114, the connecting rod 15 and the protective ring 16 can support the middle position of the inner cavity wall of the fire extinguishing bucket from the inside out, thereby avoiding the fire extinguishing bucket from being damaged due to its limited load-bearing capacity because of the excessive weight of the poured water. In addition, during the helicopter hoisting operation, the disorder of the airflow during high-altitude operations provides additional stability to the fire extinguishing bucket.

[0062] After completing the water-filling task, the fire-fighting bucket is suspended from the helicopter's sling. When the helicopter arrives at the water-spraying area, the external drive motor provides upward thrust to the coupling 212. At this time, the outer end face of the coupling 212 expands at the gap where it is connected to the blocking chassis 214 via the connecting belt 213. Water flows through the gap between the coupling 212 and the blocking chassis 214 due to water pressure, thus achieving the water-spraying effect. At this time, due to the synchronous movement of the push rod 211 under the push of the coupling 212, the connecting part 142 provides force to the reinforcing block 141 and the elastic cylinder 1. 45 An upward pushing force, due to the elasticity of the elastic cylinder 145 itself, elastically impacts the inner cavity of the linkage cylinder 121. The connecting rod 22, under the clamping action of the clamping member 123, moves synchronously. Under the linkage action, the connecting rod 22 pushes the fan blade 23 upward to open up two sets of adjacent upper cover plates 243, so that the multiple sets of upper cover plates 243 are in an upward bending state. During the operation of the fire extinguishing bucket water spraying, the driver or operator in the cab can directly observe the water spraying situation in the fire extinguishing bucket by visually looking through the gap of the upper cover plate 243.

[0063] The inner walls of the blocking chassis 214 and the protective ring 16 are both electroplated with aluminum. Since the working environment of helicopter fire-fighting buckets is mostly in fire-fighting locations that are not easily accessible to humans, such as mountainsides or valleys, the fires are often large. Furthermore, helicopters cannot operate at extremely high altitudes when dropping water; they must operate at low altitudes to effectively deliver the water to the required area. Because the temperature above the fire is high, the water in the fire-fighting bucket can effectively cool and protect the structure and overall device. However, once the helicopter reaches the airspace above the work site, the water... During continuous water spraying, the water level in the fire extinguishing bucket continues to drop. Exposed to a high-temperature environment, the oxide layer of the electroplated aluminum becomes more prominent. The water volume in the fire extinguishing bucket can be easily observed through the gaps in the upper cover 243 at the driver's or operator's visual distance. The driver or operator can detect the residual water volume in the fire extinguishing bucket by observing the discoloration of the electroplated aluminum oxide layer due to high temperature. This can prevent the precision instruments from becoming insensitive or damaged in a high-temperature environment, thus allowing the driver or operator to make reasonable arrangements for the fire extinguishing plan.

[0064] When staff observe that the electroplated aluminum oxide layer on the upper surface of the blocking chassis 214 has changed color, it can be determined that the fire extinguishing water in the fire extinguishing bucket has been poured out. Staff remotely control the external drive motor to push the push rod 211 downwards, causing the coupling 212 to close at the gap between the blocking chassis 214. At this time, after the upward thrust of the push fan 23 ends, the upper cover 243 returns to its initial state. The upper cover 243, which is arranged and laid out, covers the top of the fire extinguishing bucket, preventing the combustion of wood and other organic materials from producing particulate matter of various sizes that enter the fire extinguishing bucket, protecting the internal structure of the bucket and extending the service life of the equipment.

[0065] The combined structure of the coordinating frame 143 and the coordinating connecting belt 144 can move synchronously when the overall deformation of the stabilizing mechanism 14 occurs, ensuring that the movement of each part is coordinated and consistent. This combined structure helps to maintain the overall stability and reduces the risk of structural damage or functional failure caused by deformation.

[0066] The above describes the entire working principle of this invention.

[0067] In this invention, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0068] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

[0069] In this invention, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are merely used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A device for detecting the water volume of a helicopter fire bucket, characterized in that, Include: Support unit (1), detection unit (2) and drive motor (3); The upper and lower ends of the support unit (1) are inserted into the detection unit (2); the support unit (1) is used for supporting the inner side wall of the bucket; the upper end of the detection device is used as the switch of the bucket water inlet, and the lower end is used as the switch of the bucket water outlet; the drive motor (3) is fixedly installed between the top of the bucket and the belly hanging point, and the output shaft of the drive motor drives the opening and closing of the switch of the bucket water inlet or the switch of the bucket water outlet; The detection unit (2) comprises an adjusting mechanism (21) and a connecting rod (22) clamped and installed in the cavity wall of the clamping piece (123). The outer end wall of the top of the connecting rod (22) is annularly arranged with a push fan (23), and the top end of the connecting rod (22) is provided with an auxiliary mechanism (24). The adjusting mechanism (21) comprises a push rod (211) and a coupling (212) arranged at the bottom of the push rod (211), the outer ring of the coupling (212) is annularly arranged with a connection belt (213), and the outer end surface of the connection belt (213) is provided with a blocking bottom disc (214); the upper end surface of the blocking bottom disc is provided with an electroplated aluminum oxide layer capable of changing color at high temperature; The auxiliary mechanism (24) comprises a central control block (241) and a transverse support strip (242) annularly arranged on the outer end surface of the central control block (241), and the two ends of each group of the transverse support strip (242) are provided with an upper cover plate (243). The push rod (211) is vertically connected to the bottom of the connecting piece (142) from bottom to top, so that the adjusting mechanism (21), the stabilizing mechanism (14), the linkage mechanism (12) and the connecting rod (22) can be linked. The output end of the drive motor is connected with the push rod (211) through the longitudinal transmission rod.

2. The apparatus of claim 1, wherein, The support unit (1) comprises a series mechanism (11) and a linkage mechanism (12) inserted into the cavity of the series mechanism (11), the two ends of the series mechanism (11) are inserted with a transverse support mechanism (13), the lower end surface edge position of the transverse support mechanism (13) is provided with a stabilizing mechanism (14), the other two ends of the series mechanism (11) are inserted with a connecting rod (15), and the other end of the connecting rod (15) is attached to the inner cavity wall of the protection ring (16).

3. The apparatus of claim 2, wherein, The series mechanism (11) comprises a series disc (111) and a hollow cavity (112) opened at the middle position of the series disc (111), the outer end surface of the series disc (111) is provided with edge openings (113) on both sides, and the other two sides of the outer end surface of the series disc (111) are inserted with series transverse cylinders (114).

4. The apparatus of claim 3, wherein, The linkage mechanism (12) comprises a linkage cylinder (121) and an assembly disc (122) installed on the upper end surface of the linkage cylinder (121), and the top end surface of the assembly disc (122) is annularly arranged with clamping pieces (123).

5. The apparatus of claim 2, wherein, The transverse support mechanism (13) comprises a support transverse cylinder (131) and a reinforcing plate (132) transversely inserted into the inner cavity of the support transverse cylinder (131), and the reinforcing plate (132) is provided with a reinforcing plate (133) at the middle position of the upper and lower ends, and the other end of the reinforcing plate (133) is attached to the inner cavity wall of the support transverse cylinder (131).

6. The apparatus of claim 5, wherein, The side end face of the reinforcing plate (132) and the reinforcing plate (133) is attached to the inner end wall of the protection ring (16), and the outer end face of the connecting rod (15) is also attached to the inner end wall of the protection ring (16), so that the transverse support mechanism (13) and the connecting rod (15) can support the protection ring (16) from the inside to the outside.

7. The apparatus of claim 6, wherein, The support transverse cylinder (131) is transversely inserted into the inner cavity of the edge opening (113), so that the series mechanism (11) and the transverse support mechanism (13) become an integral whole.

8. The apparatus of claim 3, wherein, The stabilizing mechanism (14) comprises a reinforcing block (141) and a connecting piece (142) installed at the bottom position of the reinforcing block (141), the outer end wall of the connecting piece (142) is provided with a coordination frame (143), two groups of coordination frames (143) are movably connected through a coordination connecting belt (144), the upper end face of the reinforcing block (141) is provided with an elastic cylinder (145), and the elastic cylinder (145) is inserted into the inner cavity of the linkage cylinder (121) from bottom to top.

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