CN218652784U

CN218652784U - Control lock head and fire-fighting bucket for helicopter fire-fighting operation

Info

Publication number: CN218652784U
Application number: CN202222950181.7U
Authority: CN
Inventors: 朱小波; 罗伍周; 王秉玺; 钟磊; 王心楷; 王宇强; 王举
Original assignee: Second Research Institute of CAAC
Current assignee: Second Research Institute of CAAC
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-21
Anticipated expiration: 2032-11-07

Abstract

The utility model provides a control tapered end and fire control well-bucket for helicopter fire control operation of putting out a fire, include: the lock comprises a lock shell, a lifting mechanism and a locking mechanism, wherein the lifting mechanism and the locking mechanism are arranged in the lock shell; the lifting mechanism comprises a winding drum, a steel cable, a coil spring and a lifting channel, wherein the steel cable is wound on the winding drum, one end of the steel cable penetrates through the lifting channel to be connected with a water outlet of the fire bucket, and the coil spring is arranged in the winding drum; the steel cable is provided with a locking block, and the locking block moves in the lifting channel along with the downward placement or the recovery of the steel cable; the locking mechanism comprises a driving device, a sliding rod and an arc-shaped sliding groove, when the sliding block is located at the position, closest to the lifting channel, of the arc-shaped sliding groove, the sliding block abuts against the locking block and prevents the locking block from moving downwards, and at the moment, the water outlet of the fire bucket is closed; when the driving device drives the sliding block to move away from the lifting channel along the arc-shaped sliding groove, the sliding block removes the limitation on the locking block, the locking block moves downwards, and the water outlet of the fire bucket is opened at the moment.

Description

Control lock head and fire-fighting bucket for helicopter fire-fighting operation

Technical Field

The utility model relates to a helicopter fire control well-bucket technical field particularly, relates to a control tapered end and fire control well-bucket for helicopter fire control operation of putting out a fire.

Background

In recent years, as global climate warming and abnormal high-temperature drought weather increase, forest fire disasters occur frequently worldwide. The aviation fire fighting has the unique advantages of high response speed, strong maneuvering capability, wide operation range, good implementation effect and the like, and becomes an important means for preventing and controlling forest fires, protecting forest resources and handling emergency events in all countries in the world. Along with ecological civilized construction in China, the forest coverage rate is gradually improved, the requirements and the pressure of forest fire fighting are increased, and the status and the effect of aviation fire fighting in a forest fire fighting system are more and more prominent.

In aviation fire fighting, because the helicopter fire fighting bucket has the advantages of high fire fighting efficiency, convenient water taking, continuous operation and the like, the helicopter fire fighting bucket is used more and more frequently, wherein the importance of a control lock head for locking the opening and closing of a drain valve of the helicopter fire fighting bucket is self-evident; in the existing helicopter fire bucket control lock head, a complex connecting rod structure is usually adopted, and the locking and the opening of a drain valve are realized by utilizing a multi-connecting rod transmission mode, for example, a drain control mechanism for a fire bucket disclosed in the chinese patent cn201510673687.X, wherein a complex connecting rod structure is adopted, so that the number of risk points is large, under the condition of high-frequency use, the condition that the opening and the closing of a drain opening cannot be accurately controlled by the whole control mechanism due to single point failure in the connecting rod structure may occur, and the reliability is poor; and the spring is adopted for resetting, so that the situation that the resetting is not in place and the closing of the drain valve cannot be kept is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving at least and exist among the prior art and adopt complicated connecting rod structure, the risk point is more, can't satisfy the high frequency service behavior, the condition that can not accurate timely control the drain and open and close appears easily, one of the relatively poor technical problem of reliability.

Therefore, the utility model discloses the first aspect provides a control tapered end for helicopter fire control operation of putting out a fire.

The utility model discloses the second aspect provides a helicopter fire-fighting bucket.

The utility model provides a control tapered end for helicopter fire control operation of putting out a fire, include: the lock comprises a lock shell, a lifting mechanism and a locking mechanism, wherein the lifting mechanism and the locking mechanism are arranged in the lock shell;

the lifting mechanism comprises a winding drum, a steel cable, a coil spring and a lifting channel, wherein the steel cable is wound on the winding drum, one end of the steel cable penetrates through the lifting channel to be connected with a water outlet of the fire bucket, and the coil spring is arranged in the winding drum; under the action of the gravity of the fire bucket, the lifting mechanism keeps the movement trend of the downward steel cable; under the action of the tension of the coil spring, the lifting mechanism keeps the motion trend of the recovered steel cable;

the steel cable is provided with a locking block, and the locking block moves in the lifting channel along with the downward placement or the recovery of the steel cable;

the locking mechanism comprises a driving device, a sliding rod and an arc-shaped sliding groove, a sliding block is arranged at the end part of the sliding rod and is in sliding fit with the arc-shaped sliding groove, the driving device is connected with the sliding rod and drives the sliding block to slide in the arc-shaped sliding groove, the arc-shaped sliding groove extends towards the direction close to the lifting channel, when the sliding block is located at the position, closest to the lifting channel, of the arc-shaped sliding groove, the sliding block abuts against the locking block and prevents the locking block from moving downwards, and at the moment, a water discharge port of the fire-fighting bucket is closed; when the driving device drives the sliding block to move away from the lifting channel along the arc-shaped sliding groove, the sliding block removes the limitation on the locking block, the locking block moves downwards, and at the moment, the water outlet of the fire-fighting bucket is opened.

The utility model provides a control tapered end for helicopter fire control operation, the tapered end shell includes casing, locking closure etc. is equipped with a cavity in the casing, and lifting structure and locking mechanism set up in the cavity, and the casing is detachably connected with the locking closure, if adopt bolted connection; the lifting structure and the locking mechanism can also be fixed on the shell in the manners of bolt connection, bonding, welding and the like;

the winding drum is arranged at the top of the cavity in a cylindrical shape, the coil spring is arranged in the middle of the winding drum, a fixed shaft is arranged in the center of the winding drum, the winding drum can rotate forwards or backwards along the circumferential direction of the fixed shaft, one end of the coil spring is connected with the fixed shaft, one end of the steel cable is fixedly connected with the other end of the coil spring or the winding drum, and the winding drum can rotate under the driving of the coil spring so as to wind the steel cable on the winding drum; the other end of the steel cable penetrates through the lifting channel and then is connected with a water drain outlet of a water drain valve of the fire bucket, and the water drain outlet is loosened, opened or tightened and closed along with the lowering or withdrawing of the steel cable; the lifting channel is formed by a sliding cylinder or a splicing plate arranged at the lower part of the cavity, has a certain guiding function and provides a locking space.

When the gravity of the fire bucket and the water stored in the fire bucket is greater than the tension of the coil spring, the steel cable wound on the winding drum is pulled to be lowered, and the water discharge opening is opened; when the gravity of the fire bucket and the water stored in the fire bucket is smaller than the pulling force of the coil spring, the steel cable is wound to the winding drum, and the water outlet is closed.

The locking block is sleeved on the steel cable and fixedly connected with the steel cable, and can adopt the connection modes of integral forming or bonding and the like.

The sliding block of the locking mechanism is fixedly connected with the sliding rod, and at least part of the sliding block is limited in the arc-shaped sliding groove; when the water outlet is closed, the sliding block is positioned at the tail end of the arc-shaped sliding groove, namely the position closest to the lifting channel, and the sliding block is positioned on the downward moving path of the locking block, namely the sliding block abuts against the bottom of the locking block to prevent the locking block from sliding downwards, so that the water outlet is ensured to be kept closed; the operating personnel control drive arrangement opens, the drive slide bar drives the slider and removes along the direction of keeping away from the promotion passageway in the arc spout, the locking to the locking piece is relieved to the slider, the locking piece is under the action of gravity of fire-fighting bucket, move down, thereby make the discharge outlet open, water release finishes in the fire-fighting bucket, under the drive of wind spring, the upper portion that promotes the passageway is got back to the locking piece, operating personnel control drive arrangement closes this moment, drive arrangement drives the slider and gets back to the end of arc spout and keeps in this position closing the in-process, the slider resumes the locking to the locking piece. Because the slider is restricted and is removed in the arc spout to locking mechanical system's tie point is less, and the corresponding reduction of risk point number is difficult for breaking down, and the reliability is higher.

According to the utility model discloses an above-mentioned technical scheme's a control tapered end for helicopter fire control operation of putting out a fire can also have following additional technical characterstic:

in the above technical solution, the driving device includes a power source and a push-pull rod, the push-pull rod reciprocates in a vertical direction under the driving of the power source, and the sliding rod is hinged to the push-pull rod;

when the push-pull rod moves downwards, the sliding block is driven to slide in the sliding groove along the direction close to the lifting channel; when the push-pull rod moves upwards, the sliding block is driven to slide in the sliding groove along the direction far away from the lifting channel.

In the technical scheme, when the driving device is closed, the push-pull rod is positioned at the lowest position, and the sliding block is positioned at the tail end of the arc sliding groove; after the driving device is started, the push-pull rod moves upwards, the sliding block slides in the arc-shaped sliding groove along the direction far away from the lifting channel, and when the push-pull rod moves to the highest position, the sliding block is positioned at the initial end of the sliding groove, namely the position farthest away from the lifting channel. After the driving device is closed again, the push-pull rod moves downwards, and the sliding block slides in the arc-shaped sliding groove along the direction close to the lifting channel until the sliding block returns to the tail end of the arc-shaped sliding groove.

In the above technical solution, the power source includes a push-pull electromagnet or an electric cylinder.

In the technical scheme, the push-pull rod moves in the vertical direction through a push-pull electromagnet or an electric cylinder.

In the technical scheme, the steel cable is provided with a locking rod, the locking rod is arranged between the lifting mechanism and the fire bucket, and at least part of the locking rod is larger than the width of the lifting channel in diameter.

In the technical scheme, the locking rod is of a cylindrical structure and is used for preventing the locking block from continuously rising when the locking block rises to a certain position in the lifting channel.

In the technical scheme, one end of the lifting channel, which is close to the fire bucket, is trumpet-shaped.

In this technical scheme, set up the bottom of lifting channel into the open structure of loudspeaker form, make things convenient for cable wire and locking piece to pass in and out from the bottom of lifting channel, specifically, also can establish the top of locking lever into the toper structure with lifting channel bottom shape adaptation, facilitate the use.

In the above technical solution, a guiding mechanism is further provided in the lock cylinder shell, and the steel cable enters the lifting channel after passing through at least one guiding mechanism.

In the technical scheme, the guide mechanism can be a wire clamping device, a guide hole and the like and is used for limiting the trend of the steel cable between the lifting channel and the winding drum.

In the technical scheme, a rope-retracting power-assisted motor is arranged in the center of the coil spring and used for providing power assistance when the steel rope is retracted.

In the technical scheme, the rope-collecting power-assisted motor can be connected with the fixed shaft to drive the fixed shaft to rotate; when the water source in the fire bucket is not completely released, the steel cable is difficult to retract only by the pulling force of the coil spring, and an operator can start the rope retracting power-assisted motor to retract the steel cable; similarly, the motor can be rotated reversely, and the opening speed is increased when the water outlet is opened.

In any one of the above technical solutions, the lock head housing is of a triangle-like structure, and three vertexes of the triangle-like structure are provided with hanging holes.

In the technical scheme, three vertexes of a lock head shell are respectively provided with an arched shackle, a hanging hole is formed in the arched shackle, the arched shackle is used for hanging a cable, and one arched shackle at the top of the lock head is used for being connected with a helicopter in a hanging manner; two bow shackles at the bottom of the lock head are used for being connected with a fire bucket in a hanging way.

In any one of the above technical solutions, the bottom of the locking block is provided with a limiting notch, and when the sliding block limits the movement of the locking block, the sliding block abuts against the limiting notch.

In the technical scheme, the handle resultant force of the locking block and the sliding block is improved through the limiting notch, and the reliability of locking the water outlet is ensured.

The utility model also provides a helicopter fire-fighting bucket, include: the helicopter comprises a bucket body and a lock head in any one of the technical schemes, wherein the bucket body is connected with the lock head of the bucket through a hanging wire, and the lock head is hung on a helicopter through the hanging wire;

a water drain valve is arranged at the bottom of the bucket body, a water drain outlet is arranged on the water drain valve, the water drain outlet is connected with a steel cable of the lock head, and the steel cable is used for controlling the opening and closing of the water drain outlet;

the driving device is connected with the power supply side and the control end through the aviation cable, and at least part of the aviation cable is fixed on the lock shell through a clamping wire buckle.

To sum up, owing to adopted above-mentioned technical characteristic, the beneficial effects of the utility model are that:

the utility model provides a control tapered end for helicopter fire control operation of putting out a fire avoids adopting complicated link structure, and overall structure is succinct, and the reliability is high, weight and the volume of tapered end that can effectively lower, and the locking of outlet valve is more nimble with the release, and control is accurate, and the reliability is high to need not to release completely water source in the fire control well bucket, just can close the outlet valve in the use, the interruption is drained.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a state diagram of a control lock for helicopter fire fighting operation controlling the closing of a water outlet according to an embodiment of the present invention;

FIG. 2 is a state diagram of the helicopter for fire fighting operation according to an embodiment of the present invention after the control lock head controls the opening of the water outlet;

fig. 3 is a schematic structural view of a lifting mechanism and a locking mechanism in a control lock head for fire fighting operation of a helicopter according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a helicopter fire bucket according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:

1. a lock head shell; 2. a lifting mechanism; 3. a locking mechanism; 4. a guide mechanism;

11. hanging holes;

21. a reel; 22. a steel cord; 23. a coil spring; 24. a lifting channel; 25. a locking block; 26. a locking lever; 27. a rope-retracting power-assisted motor;

251. a limiting notch;

31. a drive device; 32. a slide bar; 33. an arc-shaped chute; 34. a slider;

311. a power source; 312. a push-pull rod;

101. a bucket body of the bucket; 102. a water outlet.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A control lock and a fire bucket for helicopter fire fighting operations according to some embodiments of the present invention are described below with reference to fig. 1 to 4.

Some embodiments of the present application provide a control lock for helicopter fire fighting operations.

As shown in fig. 1 to 4, a first embodiment of the present invention provides a control lock for fire fighting operation of a helicopter, including: the lock comprises a lock shell 1, and a lifting mechanism 2 and a locking mechanism 3 which are arranged in the lock shell 1;

the lifting mechanism 2 comprises a winding drum 21, a steel cable 22, a coil spring 23 and a lifting channel 24, wherein the steel cable 22 is wound on the winding drum 21, one end of the steel cable 22 passes through the lifting channel 24 to be connected with a water outlet of the fire bucket, and the coil spring 23 is arranged in the winding drum 21; under the action of the gravity of the fire bucket, the lifting mechanism 2 keeps the movement trend of the downward steel cable 22; under the action of the tension of the coil spring 23, the lifting mechanism 2 keeps the motion trend of the recovery steel rope 22;

a locking block 25 is arranged on the steel cable 22, and the locking block 25 moves in the lifting channel 24 along with the downward placement or the recovery of the steel cable 22;

the locking mechanism 3 comprises a driving device 31, a sliding rod 32 and an arc-shaped sliding chute 33, a sliding block 34 is arranged at the end part of the sliding rod 32, the sliding block 34 is in sliding fit with the arc-shaped sliding chute 33, the driving device 31 is connected with the sliding rod 32 and drives the sliding block 34 to slide in the arc-shaped sliding chute 33, the arc-shaped sliding chute 33 extends towards the direction close to the lifting channel 24, when the sliding block 34 is located at the position where the arc-shaped sliding chute 33 is closest to the lifting channel 24, the sliding block 34 abuts against the locking block 25 and prevents the locking block 25 from moving downwards, and at the moment, a water outlet of the fire bucket is closed; when the driving device 31 drives the sliding block 34 to move away from the lifting channel 24 along the arc-shaped sliding groove 33, the sliding block 34 releases the limitation on the locking block 25, the locking block 25 moves downwards, and at the moment, the water outlet of the fire bucket is opened.

According to the control lock head for the fire-fighting operation of the helicopter, the lock head shell 1 comprises a shell body, a lock cover and the like, a cavity is formed in the shell body, a lifting structure and a locking mechanism 3 are arranged in the cavity, and the shell body is detachably connected with the lock cover, such as through bolts; the lifting structure and the locking mechanism 3 can also be fixed on the shell by adopting the modes of bolt connection, bonding, welding and the like;

the winding drum 21 is arranged at the top of the cavity in a cylindrical shape, the coil spring 23 is arranged in the middle of the winding drum 21, a fixed shaft is arranged at the center of the winding drum 21, the winding drum 21 can rotate forwards or reversely along the circumferential direction of the fixed shaft, one end of the coil spring 23 is connected with the fixed shaft, one end of the steel cable 22 is fixedly connected with the other end of the coil spring 23 or the winding drum 21, and the winding drum 21 can rotate under the driving of the coil spring 23 so that the steel cable 22 is wound on the winding drum 21; the other end of the steel cable 22 passes through the lifting channel 24 and then is connected with a water outlet of a water drain valve of the fire bucket, and the water outlet is loosened, opened or tightened and closed along with the lowering or withdrawing of the steel cable 22; the lifting channel 24 is formed by a sliding cylinder or a splicing plate arranged at the lower part of the cavity, has a certain guiding function and provides a locking space.

When the gravity of the fire bucket and the water stored in the fire bucket is greater than the pulling force of the coil spring 23, the steel cable 22 wound on the winding drum 21 is pulled to be lowered, and the water outlet is opened; when the gravity of the fire bucket and the water stored in the fire bucket is smaller than the pulling force of the coil spring 23, the steel cable 22 is wound to the winding drum 21, and the water outlet is closed.

The locking block 25 is sleeved on the steel cable 22 and fixedly connected with the steel cable 22, and can adopt a connection mode such as integral forming or bonding.

The slide block 34 of the locking mechanism 3 is fixedly connected with the slide rod 32, and the slide block 34 is at least partially limited in the arc-shaped sliding chute 33; when the water outlet is closed, the sliding block 34 is positioned at the tail end of the arc-shaped sliding groove 33, namely the position closest to the lifting channel 24, and at the moment, the sliding block 34 is positioned on the downward moving path of the locking block 25, namely the sliding block abuts against the bottom of the locking block 25, so that the locking block 25 is prevented from sliding downwards, and the water outlet is ensured to be kept closed; when the operator controls the driving device 31 to open, the sliding rod 32 is driven to drive the sliding block 34 to move in the arc sliding groove 33 in the direction away from the lifting channel 24, the sliding block 34 unlocks the locking block 25, the locking block 25 moves downwards under the action of the gravity of the fire bucket, so that the water outlet is opened, when the water in the fire bucket is completely released, the locking block 25 returns to the upper part of the lifting channel 24 under the drive of the coil spring 23, at the moment, the operator controls the driving device 31 to close, the driving device 31 drives the sliding block 34 to return to the tail end of the arc sliding groove 33 and keep at the position in the closing process, and the sliding block 34 restores the locking of the locking block 25. Because the slider 34 is restricted and is removed in the arc spout 33 to locking mechanical system 3's tie point is less, and the corresponding reduction of risk point number is difficult for breaking down, and the reliability is higher.

The second embodiment of the present invention provides a control lock for fire fighting operation of a helicopter, and based on the first embodiment, as shown in fig. 1 to 4, the driving device 31 includes a power source 311 and a push-pull rod 312, the push-pull rod 312 is driven by the power source 311 to reciprocate in a vertical direction, and the sliding rod 32 is hinged to the push-pull rod 312;

when the push-pull rod 312 moves downwards, the sliding block 34 is driven to slide in the sliding groove along the direction close to the lifting channel 24; when the push-pull rod 312 moves upward, the slide block 34 is driven to slide in the slide groove in a direction away from the lifting channel 24.

In this embodiment, when the driving device 31 is closed, the push-pull rod 312 is at the lowest position, and the sliding block 34 is located at the end of the arc chute 33; after the driving device 31 is turned on, the push-pull rod 312 moves upward, the sliding block 34 slides in the arc chute 33 in a direction away from the lifting channel 24, and when the push-pull rod 312 moves to the highest position, the sliding block 34 is located at the beginning of the chute, i.e., the farthest position from the lifting channel 24. After the driving device 31 is closed again, the push-pull rod 312 moves downward, and the slider 34 slides in the arc chute 33 in a direction approaching the lifting passage 24 until it returns to the end of the arc chute 33.

The utility model discloses a third embodiment provides a control tapered end for helicopter fire control operation of putting out a fire, and on the basis of any above-mentioned embodiment, as shown in fig. 1 to 4, power supply 311 includes plug-type electro-magnet or electric cylinder.

In this embodiment, the movement of the push-pull rod 312 in the vertical direction is achieved by a push-pull electromagnet or an electric cylinder.

The utility model discloses a fourth embodiment provides a control tapered end for helicopter fire control operation of putting out a fire, and on the basis of above-mentioned arbitrary embodiment, as shown in fig. 1 to 4, be equipped with locking lever 26 on the cable wire 22, locking lever 26 is located between hoist mechanism 2 and the fire-fighting bucket, at least part the diameter of locking lever 26 is greater than the 24 width of promotion passageway.

In this embodiment, the locking bar 26 is a cylindrical structure that prevents the locking block 25 from continuing to rise when it rises to a certain position in the lifting channel 24.

The utility model discloses a fifth embodiment provides a control tapered end for helicopter fire control operation of putting out a fire, and on the basis of above-mentioned arbitrary embodiment, as shown in fig. 1 to fig. 4, it is loudspeaker form to promote the one end that passageway 24 is close to the fire-fighting bucket.

In this embodiment, the bottom of the lifting channel 24 is provided with a trumpet-shaped open structure to facilitate the entrance and exit of the steel cable 22 and the locking block 25 from the bottom of the lifting channel 24, and specifically, the top of the locking rod 26 is also provided with a cone-shaped structure matched with the shape of the bottom of the lifting channel 24 for convenient use.

The utility model discloses a sixth embodiment provides a control tapered end for helicopter fire control operation of putting out a fire, and on the basis of above-mentioned arbitrary embodiment, as shown in fig. 1 to fig. 4, still be equipped with guiding mechanism 4 in the tapered end shell 1, enter into lifting channel 24 after passing at least one guiding mechanism 4 in the cable wire 22.

In this embodiment, the guiding means 4 may be a wire clamp, a guiding hole, or the like, for limiting the run of the wire rope 22 between the hoisting channel 24 and the drum 21.

The utility model discloses a seventh embodiment provides a control tapered end for helicopter fire control operation, and on the basis of any preceding embodiment, as shown in fig. 1 to 4, the center of wind spring 23 is equipped with receipts rope helping hand motor 27, receipts rope helping hand motor 27 is used for providing the helping hand when retrieving cable wire 22.

In this embodiment, the rope-retracting power-assisted motor 27 can be connected with the fixed shaft to drive the fixed shaft to rotate; when the water source in the fire bucket is not completely released, the steel cable 22 is difficult to retract by the tension of the coil spring 23 alone, and an operator can start the rope retracting assisting motor 27 to retract the steel cable 22; similarly, the motor can be rotated reversely, and the opening speed is increased when the water outlet is opened.

The utility model discloses an eighth embodiment provides a control tapered end for helicopter fire control operation of putting out a fire, and on the basis of above-mentioned arbitrary embodiment, as shown in fig. 1 to 4, tapered end shell 1 is class triangle-shaped structure, and the three summit of class triangle-shaped structure is provided with hanging hole 11.

In the embodiment, three vertexes of the lock head shell 1 are respectively provided with an arched shackle, the hanging hole 11 is arranged on the arched shackle, the arched shackle is used for hanging a cable, and one arched shackle at the top of the lock head is used for being connected with a helicopter in a hanging way; two bow shackles at the bottom of the lock head are used for being connected with a fire bucket in a hanging way.

The utility model discloses a ninth embodiment provides a control tapered end for helicopter fire control operation of putting out a fire, and on the basis of above-mentioned arbitrary embodiment, as shown in fig. 1 to 4, the bottom of locking piece 25 is equipped with spacing breach 251, and when slider 34 restriction locking piece 25 removed, slider 34 butt was in spacing breach 251.

In this embodiment, the stopper notch 251 improves the gripping force of the lock block 25 and the slider 34, and ensures the reliability when locking the discharge port.

Some embodiments of the present application provide a helicopter fire bucket.

The utility model discloses a tenth embodiment provides a helicopter fire-fighting bucket, as shown in fig. 1 to 4, include: a bucket body 101 and a lock head as described in any of the above embodiments, wherein the bucket body 101 is connected with the bucket lock head through a hanging wire, and the lock head is hung on a helicopter through the hanging wire;

a drain valve is arranged at the bottom of the bucket body 101, a drain hole 102 is arranged on the drain valve, the drain hole 102 is connected with a steel cable 22 of a lock head, and the steel cable 22 is used for controlling the opening and closing of the drain hole 102;

the driving device 31 is connected with the power supply side and the control end through aviation cables, and at least part of the aviation cables are fixed on the lock head shell 1 through cable clamping buckles.

In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a control tapered end for helicopter fire control operation of putting out a fire which characterized in that includes: the lock comprises a lock shell (1), and a lifting mechanism (2) and a locking mechanism (3) which are arranged in the lock shell (1);

the lifting mechanism (2) comprises a winding drum (21), a steel cable (22), a coil spring (23) and a lifting channel (24), wherein the steel cable (22) is wound on the winding drum (21), one end of the steel cable (22) penetrates through the lifting channel (24) to be connected with a water discharge port (102) of the fire bucket, and the coil spring (23) is arranged in the winding drum (21); under the action of the gravity of the fire bucket, the lifting mechanism (2) keeps the movement trend of the downward steel cable (22); under the action of the tension of the coil spring (23), the lifting mechanism (2) keeps the motion trend of the recovery steel cable (22);

a locking block (25) is arranged on the steel cable (22), and the locking block (25) moves in the lifting channel (24) along with the downward placement or the recovery of the steel cable (22);

the locking mechanism (3) comprises a driving device (31), a sliding rod (32) and an arc-shaped sliding groove (33), a sliding block (34) is arranged at the end part of the sliding rod (32), the sliding block (34) is in sliding fit with the arc-shaped sliding groove (33), the driving device (31) is connected with the sliding rod (32) and drives the sliding block (34) to slide in the arc-shaped sliding groove (33), the arc-shaped sliding groove (33) extends towards the direction close to the lifting channel (24), when the sliding block (34) is located at the position, closest to the lifting channel (24), of the arc-shaped sliding groove (33), the sliding block (34) abuts against the locking block (25) and prevents the locking block (25) from moving downwards, and at the moment, a water discharge port (102) of the fire bucket is closed; when the driving device (31) drives the sliding block (34) to move away from the lifting channel (24) along the arc-shaped sliding groove (33), the sliding block (34) releases the limitation on the locking block (25), the locking block (25) moves downwards, and at the moment, the water outlet (102) of the fire bucket is opened.

2. The control lock for fire fighting operation of helicopter according to claim 1, characterized in that said driving device (31) comprises a power source (311) and a push-pull rod (312), said push-pull rod (312) is driven by the power source (311) to reciprocate in vertical direction, said sliding rod (32) is hinged with the push-pull rod (312);

when the push-pull rod (312) moves downwards, the sliding block (34) is driven to slide in the sliding groove along the direction close to the lifting channel (24); when the push-pull rod (312) moves upwards, the sliding block (34) is driven to slide in the sliding groove along the direction far away from the lifting channel (24).

3. The control lock for fire fighting operations on helicopters according to claim 2, characterized in that the power source (311) comprises a push-pull electromagnet or an electric cylinder.

4. The control lock for fire fighting operations on helicopters according to claim 1, characterized in that the cable (22) is provided with a locking rod (26), said locking rod (26) being arranged between the hoisting mechanism (2) and the bucket, at least part of said locking rod (26) having a diameter greater than the width of the hoisting channel (24).

5. The control lock for fire fighting operations on helicopters according to claim 1, characterized in that the end of the lifting channel (24) close to the bucket is trumpet-shaped.

6. A control lock for fire fighting operations on helicopters according to any one of claims 1 to 5, characterized in that inside the lock housing (1) there are also provided guiding means (4), the wire (22) passing through at least one guiding means (4) into the lifting channel (24).

7. A control lock for fire fighting operation of helicopters according to any one of claims 1 to 5, characterized in that the center of the coil spring (23) is provided with a rope retracting assist motor (27), the rope retracting assist motor (27) being used to provide assist when retracting the wire rope (22).

8. The control lock for helicopter fire fighting operations according to any of claims 1 to 5, characterized by that the lock housing (1) is of a triangle-like structure with three vertices provided with hanging holes (11).

9. The control lock cylinder for the fire fighting operation of the helicopter according to any of the claims 1 to 5, characterized in that the bottom of the locking block (25) is provided with a limit notch (251), and when the slide block (34) limits the movement of the locking block (25), the slide block (34) abuts in the limit notch (251).

10. A fire bucket for helicopter fire fighting operation, comprising: a bucket body connected to the bucket lock head by a hitch line, and the lock head carried by the helicopter by the hitch line;

the bottom of the bucket body is provided with a drain valve, the drain valve is provided with a drain hole (102), the drain hole (102) is connected with a steel cable (22) of the lock head, and the steel cable (22) is used for controlling the opening and closing of the drain hole (102).