Remote control falling-off air supply connecting device

Abstract

The utility model provides a remote control falling-off air supply connecting device. The remote control falling-off air supply connecting device at least comprises an on-rocket butt joint assembly and a ground butt joint assembly. The ground connecting assembly at least comprises a butt joint mechanism, a driving mechanism and a pulling mechanism. One end of the docking mechanism is used for being docked and locked with the on-rocket docking assembly, and the other end of the docking mechanism is connected with the driving mechanism; a mounting hole is formed in the radial edge of the butt joint mechanism, and the pulling mechanism penetrates through the mounting hole to connect the driving mechanism with the butt joint mechanism; after unlocking force is applied to the driving mechanism, the docking mechanism is pulled through the pulling mechanism so that the docking mechanism can be separated from the on-rocket docking assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of space launch vehicles, in particular to a remote-controlled falling-off air supply connection device. Background Art

[0002] Currently, there are two ways to connect the ground gas supply pipeline used to inflate the gas cylinder of a launch vehicle and the rocket body: the first is a connection method using a threaded spherical joint and a bell-mouth sealing structure, but this method requires manual disassembly of the connection interface when personnel evacuate, and remote pressurization operations cannot be performed when the gas cylinder pressure drops before the rocket is launched.

[0003] The other is to use a gas supply connector that can be separated at the launch of the launch vehicle, which can achieve reliable detachment of the gas supply load at the launch of the rocket, ensuring that the gas cylinder can be pressurized before takeoff. In the second connection method, the gas cylinder pipeline needs to be led to the connector part of the integrated pipeline, which increases the complexity of the launch vehicle pipeline design, production and testing.

[0004] Therefore, there is an urgent need to provide a gas supply connection device that can be remotely controlled to fall off and has a simplified structure. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a remote-controlled detachable air supply connection device, which can realize the separation of the air supply pipeline when the carrier rocket takes off.

[0006] The utility model provides a remote-controlled detachable air supply connection device, which at least includes an arrow-mounted docking component and a ground docking component; the ground connection component at least includes a docking mechanism, a driving mechanism and a pulling mechanism; one end of the docking mechanism is used to dock with and lock the arrow-mounted docking component, and the other end is connected to the driving mechanism; a mounting hole is provided on the radial edge of the docking mechanism, and the pulling mechanism connects the driving mechanism with the docking mechanism after passing through the mounting hole; after the driving mechanism is applied with an unlocking force, the docking mechanism is pulled by the pulling mechanism to unlock it from the arrow-mounted docking component and then detach.

[0007] In one embodiment, the driving mechanism at least includes a cylinder, a nozzle, a retaining frame, a quick connector and an air pipe; the first end of the cylinder is matched with the docking mechanism, the nozzle is arranged on the side of the first end, and the other end of the nozzle is connected to a high-pressure air supply pipeline for supplying air to the arrow; the second end of the cylinder passes through the inner hole of the retaining frame and is connected to the air pipe through the quick connector, and the air pipe is used to supply air for the actuation of the cylinder; the pulling mechanism is connected to the retaining frame at one end away from the docking mechanism.

[0008] In one embodiment, the cylinder at least includes a cylinder body, a piston, a cylinder cover and an O-ring; one side of the cylinder body is connected to the docking mechanism and the nozzle, and the other side is a cylinder barrel; one end of the piston is sealed in the cylinder barrel through the O-ring to form an air cavity, and the other end passes through the retaining frame and is connected to the quick connector, and the cylinder cover fixes the piston to the cylinder body; a through hole is provided in the piston, and the air cavity is connected to the quick connector through the through hole.

[0009] In one embodiment, the pulling mechanism includes a steel wire rope, a first clamp and a second clamp; after the first end of the steel wire rope passes through the mounting hole, the first clamp contacts the docking mechanism to fix the first end of the steel wire rope; after the second end of the steel wire rope passes through the retaining frame, the second clamp contacts the retaining frame to fix the second end of the steel wire rope; the cylinder introduces working gas through the air pipe to push the piston to drive the retaining frame to move in a direction away from the arrow, and the retaining frame contacts the second clamp to pull the steel wire rope, so that the first clamp contacts the docking mechanism and drives the docking mechanism to separate from the docking assembly on the arrow.

[0010] In one embodiment, the second end of the steel wire rope is fixed by the retaining frame and the second clamp and then connected to an external actuator; by driving the external actuator to pull the steel wire rope, the first clamp drives the docking mechanism to move away from the on-arrow docking assembly, thereby achieving the separation of the ground docking assembly from the on-arrow docking assembly.

[0011] In any of the above embodiments, the arrow-on-arrow docking assembly includes an arrow-on-arrow joint and a quick connector male head arranged on the arrow body, and the arrow-on-arrow joint is connected to one end of the quick connector male head; the docking mechanism includes a quick connector female head and a fixing ring matched with the other end of the quick connector male head; the fixing ring can be slidably mounted on the periphery of the quick connector female head, and the quick connector male head is fixed by the fixing ring after docking.

[0012] In one embodiment, the quick connector female head is provided with a sliding sleeve, a spring and a ball lock; the spring is compressed and arranged between the sliding sleeve and the axial direction of the quick connector female head to apply a force to the sliding sleeve to move along the axial direction of the quick connector female head; the ball lock is arranged between the sliding sleeve and the quick connector female head, and is used to lock the two after the quick connector female head and the quick connector male head are connected; the fixing ring is arranged on the outer periphery of the sliding sleeve, and the sliding sleeve is driven by pulling the fixing ring to compress the spring and slide in a direction away from the quick connector female head, thereby opening the ball lock and exposing the quick connector female head; after the quick connector female head and the quick connector male head are connected, the fixing ring is released, so that the sliding sleeve is reset and the ball lock is closed under the elastic force of the spring, thereby completing the connection between the quick connector female head and the quick connector male head.

[0013] In one embodiment, the fixing ring includes two half rings, each of which is provided with a first flange matching the sliding sleeve; the two half rings of the fixing ring are fastened by screws and then the sliding sleeve is clamped by the first flange; a through hole for installing the wire rope is provided in the middle position of the annulus of each half ring.

[0014] In one embodiment, a second flange is provided on one side of the cylinder head close to the retaining frame, and the retaining frame is provided with a third flange matching the second flange; the inner diameter of the second flange matches the outer diameter of the third flange to achieve dust prevention when the piston is in a retracted state.

[0015] In one embodiment, one end of the air pipe away from the air cylinder is connected to an air supply solenoid valve.

[0016] The utility model provides a remote-controlled air supply connection device, which has at least one of the following beneficial effects:

[0017] 1. The remote-controlled detachable air supply connection device of the embodiment of the utility model realizes the quick connection and remote detachment of a single air supply interface by integrating a quick connector and a detachable air cylinder, realizes unattended operation at the work site, and eliminates the danger of on-site operations.

[0018] 2. The nozzle of the embodiment of the utility model is installed on the cylinder, so that the cylinder integrates the high-pressure air supply passage, simplifies the product structure, reduces the volume, and reduces the product weight.

[0019] 3. The remote-controlled detachable air supply connection device of the embodiment of the utility model has the function of linkage between cylinder unlocking and external actuator unlocking, which improves the detachment reliability of the air supply connection device.

[0020] Those skilled in the art will recognize additional features and advantages upon reading the detailed description and upon viewing the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of a remote-controlled detachable air supply connection device according to an embodiment of the utility model in a state where the arrow portion and the ground portion are separated.

[0023] Figure 2 It is a schematic diagram of the overall structure of the remote-controlled detachable air supply connection device of an embodiment of the utility model.

[0024] Figure 3 It is an exploded view of the cylinder and the retainer of the embodiment of the utility model.

[0025] Figure 4 It is a cross-sectional view of a cylinder and a retainer according to an embodiment of the utility model.

[0026] Figure 5 It is a schematic diagram of the connection between the arrow portion and the ground portion of the remote-controlled detachable air supply connection device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are used to illustrate the principles of the present invention, and are not configured to limit the present invention. In addition, the structural components in the drawings are not necessarily drawn to scale. For example, the sizes of some structural components or areas in the drawings may be enlarged for other structural components or areas to help understand the embodiments of the present invention.

[0028] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the utility model. In the description of the utility model, it should be noted that, unless otherwise specified, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In addition, the terms "include", "comprise", "have" or any other variations thereof are intended to cover non-exclusive inclusion, so that a structure or component including a series of elements includes not only those elements, but also other mechanical elements that are not explicitly listed or inherent in the structure or component. In the absence of more restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the article or device including the elements.

[0030] Spatially related terms such as "below", "beneath", "under", "low", "above", "on", "high", etc. are used to facilitate description to explain the positioning of one element relative to a second element, indicating that these terms are intended to cover different orientations of the device in addition to orientations different from those shown in the figures. In addition, for example, "one element is above / below another element" can mean that the two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first", "second", etc. are also used to describe various elements, regions, parts, etc., and should not be regarded as limiting. Similar terms represent similar elements throughout the description.

[0031] For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by showing examples of the present invention.

[0032] See also Figure 1 and Figure 2 The utility model provides a remote-controlled detachable air supply connection device, which at least includes an arrow-mounted docking assembly 1 and a ground docking assembly 2. The arrow-mounted docking assembly 1 is arranged on the arrow and will fly with the carrier rocket. The ground docking assembly 2 is a ground part, which will be quickly separated from the arrow-mounted docking assembly 1 at a specific time when the carrier rocket takes off or before takeoff. Among them, the ground connection assembly 2 at least includes a docking mechanism 3, a driving mechanism 4 and a pulling mechanism 5. One end of the docking mechanism 3 is used to dock and lock with the arrow-mounted docking assembly 1 to achieve a quick connection between the ground docking assembly and the arrow-mounted docking assembly. The other end of the docking mechanism 3 is connected to the driving mechanism 4, and the driving mechanism 4 applies a driving force (docking force) in the first direction S1 to the docking mechanism 3, so that the docking mechanism 3 can be quickly docked with the arrow-mounted docking assembly 1.

[0033] Furthermore, in order to achieve rapid detachment of the ground docking assembly 2 at a specific moment when the carrier rocket is launched or before takeoff, the driving mechanism 4 can be connected to the docking mechanism 3 by using the pulling mechanism 5. Specifically, a mounting hole is provided on the radial edge of the docking mechanism 3, one end of the pulling mechanism 5 is connected to the driving mechanism 4, and the other end is connected to the docking mechanism 3 after passing through the mounting hole. In this embodiment, after the driving mechanism 4 applies a driving force (unlocking force) opposite to the first direction S1 to the docking mechanism 3, the docking mechanism 3 and the arrow docking assembly 1 can be unlocked, and the driving mechanism 4 continues to drive the pulling mechanism 5 to pull the docking mechanism 3 so that it can be quickly detached from the arrow docking assembly 1.

[0034] The remote-controlled detachment air supply connection device of the embodiment of the utility model remotely controls the action of the driving mechanism at a specific moment when the carrier rocket is launched or before take-off, and utilizes the driving mechanism to apply an unlocking force to the docking mechanism, while applying a pulling force to the pulling mechanism, thereby enabling the ground docking assembly and the arrow-mounted docking assembly to be quickly detached, realizing unmanned operation at the operation site and eliminating the danger of on-site operations.

[0035] It should be noted that both the ground docking assembly and the arrow docking assembly are provided with channels for medium to pass through, so as to supply air to the arrow after the docking is completed.

[0036] See also Figure 1 , Figure 2 and Figure 3 In one embodiment, the driving mechanism 4 at least includes a cylinder 41, a nozzle 42, a holder 43, a quick connector 44 and an air pipe 45. The first end of the cylinder 41 is matched with the docking mechanism 3, one end of the nozzle 42 is arranged on the side of the first end of the cylinder 41 and communicates with the inside of the cylinder 41, and the other end of the nozzle 42 is connected to the high-pressure air supply pipeline. After the ground docking assembly 2 and the arrow docking assembly 1 are connected, the high-pressure air supply pipeline can be used to supply air to the arrow through the nozzle 42 and the arrow docking assembly. The second end of the cylinder 41 passes through the inner hole of the holder 43 and is connected to the air pipe 45 through the quick connector 44. The other end of the air pipe 45 is connected to the air supply solenoid valve. When the air supply solenoid valve is opened, the cylinder 41 can be inflated through the air pipe 45, thereby driving the cylinder 41 to make the ground docking assembly 2 and the arrow part fall off. For example, the pulling mechanism 5 can be driven by the driving cylinder 41 to pull the docking mechanism 3, so that the connection between the arrow docking assembly 1 and the ground docking assembly 2 is released.

[0037] Specifically, one end of the pulling mechanism 5 away from the docking mechanism 3 is connected to the holder 43. By remotely controlling the inflation of the cylinder 41, the cylinder 41 drives the holder 43 to move away from the arrow body, thereby realizing that the holder 43 drives the pulling mechanism 5 to pull the docking mechanism 3 to separate it from the docking assembly 1 on the arrow.

[0038] See also Figure 2, Figure 3 and Figure 4 In the above embodiment, the cylinder 41 adopts a single-acting cylinder, which is used to remotely provide power for the detachment of the air supply connection device. The cylinder 41 in this embodiment at least includes a cylinder body 411, a piston 412, a cylinder head 413 and an O-ring 414. One side of the cylinder body 411 is connected to the docking mechanism 3 and the nozzle 42, and the other side is a cylinder barrel for the installation of the piston 412 and the O-ring 414. Among them, the part (axial end) where the cylinder body 411 is connected to the docking mechanism 3 is provided with an NPT external thread to facilitate the connection with the docking mechanism 3. The part (radial side) where the cylinder body 411 is connected to the nozzle 42 is provided with an NPT internal thread to facilitate the connection with the nozzle 42. After the nozzle 42 is connected to the cylinder body 411 and the docking mechanism 3, a charging and discharging air passage L1 is formed. A piston 412 and an O-ring 414 are provided inside the cylinder end of the cylinder body 411. One end of the piston 412 is sealed in the cylinder of the cylinder body 411 through the O-ring 414 to form an air chamber A. The other end of the piston 412 passes through the retainer 43 and is connected to the quick connector 44. The cylinder cover 413 fixes the piston 412 to the cylinder body 411. The cylinder cover 413 is used for guiding and limiting the piston 412. The movable stroke of the piston 412 is not less than 15 mm.

[0039] Furthermore, the piston 412 is connected to the air pipe 45 through the quick connector 44. A through hole B is provided in the piston 412, and the air cavity A is connected to the quick connector 44 through the through hole B to form a gas passage, so that the air pipe 45 can inflate the air cavity A through the above-mentioned gas passage, thereby driving the cylinder 41 to provide power for the air supply connection device to fall off. In order to facilitate the installation of the piston 412, the piston 412 can be connected to the external thread of the quick connector 44 through an internal thread, and an internal hexagon is provided on the side of the piston 412 away from the quick connector 44, so that the installation and positioning of the piston 412 and the quick connector 44 can be completed using a hexagonal wrench.

[0040] The working pressure of the cylinder in the embodiment of the utility model is between 0.7MPa and 0.9MPa, and the diameter of the air cavity A is not less than 20mm.

[0041] See also Figure 2 , Figure 3 and Figure 5In one embodiment, the pulling mechanism 5 includes a wire rope 51, a first clamp 52, and a second clamp 53. After the first end of the wire rope 51 passes through the docking mechanism 3, the first clamp 52 contacts the docking mechanism 3 to fix the first end of the wire rope 51. After the second end of the wire rope 51 passes through the retaining frame 43, the second clamp 53 contacts the retaining frame 43 to fix the second end of the wire rope 51, so that the wire rope is tightened and installed on the docking mechanism 3 and the retaining frame 43. When the cylinder body 411 is introduced with working gas through the air pipe 45, the piston 412 is pushed under the pressure of the air chamber A to drive the retaining frame 43 to move in a direction away from the arrow. During the movement, the retaining frame 43 contacts the second clamp 53 and pulls the wire rope 51, so that the first clamp 52 contacts the docking mechanism 3 and drives the docking mechanism 3 to separate from the docking assembly on the arrow.

[0042] In the above embodiment, the two wings of the retainer 43 are provided with through holes 432 for installing the wire rope, which are used for installing the wire rope and the second clamp. The first clamp and the second clamp are pressed on the designated position of the wire rope with a round hole aluminum sleeve, the first clamp is set at the end of the wire rope, and the second clamp is set on the wire rope with a length L from the first clamp. The length L is 3 to 4 mm longer than the distance between the rear end face of the retainer and the front end face of the docking mechanism when the piston is retracted.

[0043] The steel wire rope of the above embodiment of the utility model passively applies a disengagement force to the air supply connection device after the cylinder is actuated. In another embodiment of the utility model, in order to improve the reliability of unlocking and separating the air supply connection device, the steel wire rope can also be used to apply an active disengagement force to the air supply connection device.

[0044] For example, in this embodiment, the second end of the steel wire 51 is fixed by the retaining frame 43 and the second clamp 53 and then connected to the external actuator. The external actuator can act simultaneously with the cylinder and provide a driving force for the air supply connection device to be disengaged, so as to improve the reliability of the air supply connection device to be disengaged. The external actuator can also act alone, and by driving the external actuator to pull the steel wire, the first clamp drives the docking mechanism to move away from the arrow docking assembly, so as to achieve the disengagement of the ground docking assembly from the arrow docking assembly.

[0045] See also Figure 2 In any of the above embodiments, the arrow-on docking assembly 1 includes an arrow-on connector 11 and a quick connector male 12 provided on the arrow body, and the arrow-on connector 11 is connected to one end of the quick connector male 12. The docking mechanism 3 includes a quick connector female 32 and a fixing ring 31 matched with the other end of the quick connector male 12. The fixing ring 31 is slidably sleeved on the periphery of the quick connector female 32, and the quick connector male 12 is fixed by the fixing ring 31 after docking with the quick connector female 32.

[0046] Furthermore, the quick connector female head is provided with a sliding sleeve, a spring and a ball lock. The spring is arranged in a compressed manner between the sliding sleeve and the axial direction of the quick connector female head to exert a force on the sliding sleeve to move along the axial direction of the quick connector female head. The ball lock is arranged between the sliding sleeve and the quick connector female head to lock the quick connector female head and the quick connector male head after the quick connector female head and the quick connector male head are connected.

[0047] The fixing ring includes two half rings, and a first flange matching the sliding sleeve is arranged inside the fixing ring. The two half rings of the fixing ring are fastened to the outer periphery of the sliding sleeve by screws, and then the sliding sleeve is clamped by the first flange. A through hole for installing a wire rope is arranged in the middle position of the annular direction of each half ring, and the wire rope passes through the through hole of each half ring and is connected to the corresponding half ring by a first clamp.

[0048] When using the remote-controlled detachable air supply connection device of the embodiment of the utility model, first connect the quick connector male head and the arrow-shaped connector as one, push the retaining frame to the limit position of the cylinder head, and the piston is in the reset state. In the process of connecting the quick connector female head and the quick connector male head, first pull the fixing ring to drive the sliding sleeve compression spring to slide away from the quick connector female head, open the ball lock and expose the quick connector female head, and then push the quick connector female head and the quick connector male head to dock and release the fixing ring, so that the sliding sleeve is reset and the ball lock is closed under the elastic force of the spring, completing the connection between the quick connector female head and the quick connector male head. At this time, the air supply connector device realizes the connection between the ground air supply pipeline and the arrow-shaped air supply pipeline.

[0049] The air supply connection device supplies air to the cylinder through an external solenoid valve, which can realize the separation and detachment of the ground air supply pipeline and the air supply pipeline on the arrow at the moment of rocket takeoff or at a set time before takeoff. Specifically, the control gas is introduced into the cylinder through the air pipe, and the pressure of the A chamber of the cylinder is established under the action of the control gas pressure, pushing the piston to drive the retaining frame to slide to the rear end (away from the arrow body). After the retaining frame contacts the second chuck, it drives the wire rope and the first chuck to move backward (away from the arrow body). When the first chuck contacts the end face of the fixed ring, the sliding sleeve of the quick connector female head is driven to move backward (away from the arrow body) through the fixed ring until the sliding sleeve releases the ball lock of the quick connector female head. After the ball lock is unlocked, the ground part of the air supply connection device is quickly ejected and separated from the quick connector male head through the reset elastic potential energy of the self-sealing valve core, completing the detachment of the ground part and the arrow part.

[0050] In the above embodiment, the interface between the quick connector male and the arrow connector is an internal threaded hole and is equipped with an axial self-sealing valve core. Before the air supply connection device is separated, the axial self-sealing valve core is compressed and arranged in the quick connector female. When the ball lock is unlocked, the axial self-sealing valve is reset and provides power for the separation of the ground part of the air supply connection device and the quick connector male.

[0051] See also Figure 3In one embodiment, a second flange 4131 is provided on one side of the cylinder head 413 close to the retainer, and the retainer 43 is provided with a third flange 431 matching the second flange 4131. The inner diameter of the second flange 4131 matches the outer diameter of the third flange 431 to achieve dust prevention when the piston 412 is retracted. The remote control drop-off air supply connection device of the embodiment of the utility model enables the retainer to match the axial hole set on the cylinder head, thereby improving the adaptability of the product to dusty environments.

[0052] The above embodiments can be combined with each other and have corresponding technical effects.

[0053] The remote-controlled detachable gas supply connection device of the utility model adopts an independent quick connection and separation gas supply device, which can realize the remote pressurization operation of the gas cylinder on the arrow during launch preparation, eliminates the danger of staff on duty on site, and at the same time improves the guarantee capability of gas-using equipment and reduces the complexity of pipeline design, production and testing.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A remote controlled air supply connection device, characterized in that: At least includes an arrow docking assembly and a ground docking assembly; The ground connection assembly at least includes a docking mechanism, a driving mechanism and a pulling mechanism; one end of the docking mechanism is used to dock with and lock the on-arrow docking assembly, and the other end is connected to the driving mechanism; A mounting hole is provided on the radial edge of the docking mechanism, and the pulling mechanism connects the driving mechanism with the docking mechanism after passing through the mounting hole; after the driving mechanism is applied with an unlocking force, the docking mechanism is pulled by the pulling mechanism to unlock it from the docking assembly on the arrow and then disengage it.

2. The remote control detachable air supply connection device according to claim 1, characterized in that: The driving mechanism at least includes a cylinder, a nozzle, a holder, a quick connector and an air pipe; the first end of the cylinder is matched with the docking mechanism, one end of the nozzle is arranged on the side of the first end, and the other end of the nozzle is connected to a high-pressure air supply pipeline for supplying air to the arrow; the second end of the cylinder passes through the inner hole of the holder and is connected to the air pipe through the quick connector, and the air pipe is used to supply air for the actuation of the cylinder; One end of the pulling mechanism away from the docking mechanism is connected to the retaining frame.

3. The remote control drop-off gas supply connection device according to claim 2, characterized in that: The cylinder at least comprises a cylinder body, a piston, a cylinder cover and an O-ring; one side of the cylinder body is for the docking mechanism and the nozzle to access, and the other side is a cylinder barrel; one end of the piston is sealed and arranged in the cylinder barrel through the O-ring to form an air cavity, and the other end passes through the retainer and is connected to the quick connector, and the cylinder cover installs and fixes the piston to the cylinder body; A through hole is arranged in the piston, and the air cavity is communicated with the quick connector through the through hole.

4. The remote control drop-off gas supply connection device according to claim 3, characterized in that: The pulling mechanism comprises a steel wire rope, a first clamp and a second clamp; after the first end of the steel wire rope passes through the mounting hole, the first clamp contacts the docking mechanism to fix the first end of the steel wire rope; after the second end of the steel wire rope passes through the retaining frame, the second clamp contacts the retaining frame to fix the second end of the steel wire rope; The cylinder introduces working gas through the air pipe to push the piston to drive the retaining frame to move in the direction away from the arrow. The retaining frame contacts the second clamp to pull the wire rope, so that the first clamp contacts the docking mechanism and drives the docking mechanism to separate from the docking assembly on the arrow.

5. The remote control drop-off gas supply connection device according to claim 4, characterized in that: The second end of the steel wire rope is connected to an external actuator after being fixed by the retaining frame and the second clamp; By driving the external actuator to pull the steel wire rope, the first clamp drives the docking mechanism to move in a direction away from the on-arrow docking assembly, thereby achieving the separation of the ground docking assembly from the on-arrow docking assembly.

6. The remote control detachable air supply connection device according to any one of claims 1 to 5, characterized in that: The arrow-on-dock assembly includes an arrow-on-dock joint and a quick-connector male head arranged on the arrow body, wherein the arrow-on-dock joint is connected to one end of the quick-connector male head; the docking mechanism includes a quick-connector female head and a fixing ring arranged to match the other end of the quick-connector male head; The fixing ring is slidably sleeved on the outer periphery of the quick connector female head, and the quick connector male head is fixed by the fixing ring after being butted against the quick connector female head.

7. The remote control drop-off gas supply connection device according to claim 6, characterized in that: The quick connector female head is provided with a sliding sleeve, a spring and a ball lock; the spring is arranged in a compression manner between the sliding sleeve and the axial direction of the quick connector female head to apply a force to the sliding sleeve to move along the axial direction of the quick connector female head; the ball lock is arranged between the sliding sleeve and the quick connector female head to lock the quick connector female head and the quick connector male head after the quick connector female head and the quick connector male head are connected; The fixing ring is arranged on the periphery of the sliding sleeve, and the sliding sleeve is driven to compress the spring by pulling the fixing ring to slide in a direction away from the quick connector female head, thereby opening the ball lock and exposing the quick connector female head; after the quick connector female head and the quick connector male head are connected, the fixing ring is released, so that the sliding sleeve is reset and the ball lock is closed under the elastic force of the spring, thereby completing the connection between the quick connector female head and the quick connector male head.

8. The remote control drop-off gas supply connection device according to claim 7, characterized in that: The fixing ring comprises two half rings, and a first flange matching the sliding sleeve is arranged inside the two half rings of the fixing ring; the first flange is used to clamp the sliding sleeve after the two half rings of the fixing ring are fastened by screws; A through hole for installing a steel wire rope is provided at the circumferential middle position of each half ring.

9. The remote control drop-off gas supply connection device according to claim 3, characterized in that: A second flange is provided on one side of the cylinder cover close to the retainer, and the retainer is provided with a third flange matching the second flange; the inner diameter of the second flange matches the outer diameter of the third flange to achieve dust prevention when the piston is in a retracted state.

10. The remote control drop-off gas supply connection device according to claim 4, characterized in that The end of the air pipe away from the cylinder is connected to the air supply solenoid valve.

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