Air conditioner connector on rocket

Abstract

The invention discloses an on-rocket air conditioner connector, which relates to the technical field of spaceflight and comprises a main sleeve, at least one set of ball lock mechanism and an air valve mechanism, the main sleeve at least comprises a sleeve body, a mounting base is arranged on the outer side of one end of the sleeve body, and the other end of the sleeve body communicates with an air conditioner pipe. The ball lock mechanism at least comprises a locking pin and a locking sleeve matched with the locking pin. The locking pin is arranged on the mounting seat; the locking sleeve is arranged on the rocket body fairing; the air valve mechanism is arranged on the mounting seat and is communicated with the locking pin of the ball lock mechanism; during locking, the air valve mechanism does not supply air into the locking pin of the ball lock mechanism, and the locking pin and the locking sleeve are in a locking state; and during separation, the air valve mechanism supplies air to the locking pin of the ball lock mechanism, and the locking pin and the locking sleeve are in a separated state. The device has the advantages of being reliable in locking, small in unlocking force, capable of achieving redundant unlocking and the like, and a rocket can automatically fall off before taking off in an unattended state and can be effectively separated from a rocket body.

Description

Technical Field

[0001] The present application relates to the field of aerospace technology, and in particular to an air-conditioning connector on an arrow. Background Art

[0002] As a key device for the rocket-ground interface, the air conditioning connector is used to deliver clean air with specific requirements to the payload in the fairing to meet the temperature and humidity requirements of the payload and instruments, thereby ensuring that the payload is always in a suitable environment before the rocket takes off. The air conditioning connector must have locking and shedding functions, so the most important design element of the air conditioning connector is reliable locking and shedding. If this requirement cannot be met, it may cause consequences such as delays in the launch mission. Therefore, the locking and unlocking reliability of the air conditioning connector is extremely high.

[0003] Conventional air-conditioning connector structures mainly include: flange-type air-conditioning connectors and claw-type air-conditioning connectors. Among them, the flange-type air-conditioning connector is directly connected to the interface on the rocket through bolts, and the flange-type air-conditioning connector needs to be manually removed before the rocket is launched. The claw-type air-conditioning connector closes and fastens the flange on the arrow through the two hooks at the front end to achieve docking and locking, and unlocks and separates when opened. The hooks are driven by manually operated screws or cylinders. When designing this structure, the motion envelope problem of the claw-type air-conditioning connector during the process of locking and unhooking must be considered.

[0004] Both flange-type air-conditioning connectors and claw-type air-conditioning connectors require manual docking before they fall off, and manual docking puts operators in a dangerous environment that is flammable and explosive. With the development of aerospace technology, in order to ensure the safety of front-line operators, after the rocket air-conditioning connector starts working, the test site needs to be unattended. Therefore, the unattended technology of the rocket-to-ground connector has become a key technology. Summary of the invention

[0005] The purpose of this application is to provide an on-rocket air-conditioning connector that can be manually docked and has the advantages of reliable locking, small unlocking force and redundant unlocking. It can automatically fall off before the rocket takes off in an unattended state and effectively separate from the rocket body.

[0006] To achieve the above-mentioned purpose, the present application provides an arrow-mounted air-conditioning connector, comprising: a main sleeve, at least one set of ball lock mechanisms and an air valve mechanism; wherein the main sleeve at least comprises: a sleeve body, a mounting seat is arranged on the outer side of one end of the sleeve body, and the other end of the sleeve body is connected to the air-conditioning pipe; the ball lock mechanism at least comprises: a locking pin, and a locking sleeve cooperating with the locking pin; the locking pin is arranged on the mounting seat; the locking sleeve is arranged on the arrow body fairing; the air valve mechanism is arranged on the mounting seat and is connected to the locking pin of the ball lock mechanism; when locking, the air valve mechanism does not supply air to the locking pin of the ball lock mechanism, and the locking pin and the locking sleeve are in a locked state, thereby realizing the locking action; when receiving a separation command, the air valve mechanism supplies air to the locking pin of the ball lock mechanism, and the locking pin and the locking sleeve are in a separated state, thereby realizing the unlocking action.

[0007] As above, wherein the locking sleeve at least includes: a locking sleeve flange and a locking sleeve body having a locking sleeve cavity; the locking sleeve flange is arranged on the outside of the locking sleeve body, and is detachably connected to the arrow body fairing through the locking sleeve flange; the locking sleeve cavity includes: a first cavity, a second cavity and a third cavity, the first cavity is a cavity with a first rectangular cross-section, the second cavity is a cavity with an isosceles trapezoidal cross-section, and the third cavity is a cavity with a second rectangular cross-section; one side of the first rectangle is connected to the lower bottom surface of the isosceles trapezoid; the upper bottom surface of the isosceles trapezoid is connected to one side of the second rectangle; wherein the locking pin at least includes: a locking pin flange, a locking pin body having a locking pin cavity, a sliding body having a sliding channel, a wedge rod, a locking pin spring and a steel ball; the locking pin flange is arranged on the locking The outer side of the pin body is detachably connected to the mounting seat through a locking pin flange; an inflation port connected to the locking pin cavity is provided at one end of the locking pin body, and the air valve mechanism is connected to the locking pin cavity through the inflation port; a sliding through hole connected to the locking pin cavity is provided at the other end of the locking pin body; the diameter of the sliding through hole is smaller than the diameter of the locking pin cavity; one end of the sliding body is connected to the other end of the locking pin body, and the sliding channel is connected to the locking pin cavity through the sliding through hole; a steel ball through hole is also provided on the sliding body, and the steel ball through hole is connected to the sliding channel; the wedge rod comprises: a sliding block, a connecting rod and a wedge block; one end of the wedge block does not have an inclined surface, the other end of the wedge block has an inclined surface, and the diameter of the end of the wedge block without the inclined surface is larger than the diameter of the end of the wedge block with the inclined surface; the sliding block is provided The locking pin is in the locking pin cavity and is slidably connected to the inner wall of the locking pin body; the side of the sliding block away from the inflation port is connected to one end of the connecting rod; the other end of the connecting rod is connected to an end of the wedge block with an inclined surface; the wedge block is located in the sliding channel and is slidably connected to the inner wall of the sliding body; the locking pin spring is sleeved on the connecting rod and is located in the locking pin cavity, one end of the locking pin spring is in contact with or connected to the side of the sliding block away from the inflation port, and the other end of the locking pin spring is in contact with or connected to the inner wall of the end of the locking pin body provided with a sliding through hole; when the locking pin and the locking sleeve are in a locked state, the sliding body is located in the locking sleeve cavity, and the steel ball through hole is located at the connecting point of the first cavity and the second cavity, the locking pin spring is in an extended state, and the side of the sliding block away from the locking pin spring is in contact with the locking The inner wall of the pin body at one end of which the inflation port is provided is in contact; the end of the wedge block without the inclined surface is located at the steel ball through hole, the steel ball passes through the steel ball through hole, the bottom of the steel ball contacts the end of the wedge block without the inclined surface, the steel ball is simultaneously located in the steel ball through hole, the first cavity and the second cavity, and the top of the steel ball contacts the inner wall of the locking sleeve body, at which time the steel ball engages the locking pin in the locking sleeve; when the locking pin and the locking sleeve are in an unlocked state and the locking pin has not yet separated from the locking sleeve, the sliding body is located in the locking sleeve cavity, and the steel ball through hole is located at the connection point between the first cavity and the second cavity, the air valve mechanism supplies air to the locking pin cavity through the inflation port, the side of the sliding block away from the locking pin spring is separated from the inner wall of the end of the locking pin body with the inflation port, and the locking pin spring is in a compressed state;The end of the wedge block with the inclined surface is located at the steel ball through hole, the steel ball passes through the steel ball through hole, the bottom of the steel ball contacts the end of the wedge block with the inclined surface, and the steel ball is located in the steel ball through hole and the sliding channel. At this time, the steel ball has no locking effect on the locking pin and the locking sleeve, and the locking pin can be removed from the locking sleeve. ;

[0008] As above, a break pin through hole is further provided at one end of the locking sleeve body; the break pin through hole is connected to the first cavity; the locking sleeve flange is not connected to the rocket body fairing, and the break pin connects the locking sleeve and the rocket body fairing through the break pin through hole. When the air valve mechanism fails, the break pin is used to break and unlock.

[0009] As above, the gas valve mechanism at least includes: a gas collecting pipe for storing gas and a solenoid valve assembly for controlling the on-off of the gas circuit; the solenoid valve assembly includes at least one unlocking solenoid valve; one end of the gas collecting pipe is connected to the gas distribution platform through an air supply hose, and the other end of the gas collecting pipe is connected to the air inlet of the solenoid valve assembly through an air supply hose; the air outlet of the solenoid valve assembly is connected to the locking pin of the ball lock mechanism; when locking, the solenoid valve assembly controls the gas circuit to be blocked, the ball lock mechanism is in a non-gas supply state, and the locking pin and the locking sleeve are in a locked state to achieve locking; when receiving a separation command, the solenoid valve assembly controls the gas circuit to be connected, and gas is supplied to the locking pin of the ball lock mechanism through the gas collecting pipe, and the locking pin and the locking sleeve are in a separated state to achieve unlocking.

[0010] As above, the solenoid valve assembly includes two unlocking solenoid valves in parallel; the air inlet of one unlocking solenoid valve is connected to the other end of the air collecting pipe, and the air outlet of one unlocking solenoid valve is connected to the locking pin of the ball lock mechanism; the air inlet of another unlocking solenoid valve is connected to the other end of the air collecting pipe, and the air outlet of another unlocking solenoid valve is connected to the locking pin of the ball lock mechanism; when both unlocking solenoid valves are normal, the air circuit is controlled by any one of the two unlocking solenoid valves, and when one unlocking solenoid valve fails, the other unlocking solenoid valve is switched to control the air circuit.

[0011] As above, wherein at least one countersunk hole is provided on the mounting seat, the locking pin is provided in the countersunk hole, the sliding body is located at the front end of the mounting seat, and the inflation port is located at the rear end of the mounting seat.

[0012] As above, a rectangular groove is provided on the mounting seat, the micro switch is provided in the rectangular groove, and the micro switch is connected to the electrical connector to realize the transmission of electrical signals; when the locking pin and the locking sleeve are in a locked state, the lever of the micro switch is squeezed; when the locking pin and the locking sleeve are unlocked and separated, the lever of the micro switch returns to the initial state, and the separation signal is collected by opening and closing the lever of the micro switch.

[0013] As above, wherein the front end of the mounting seat is provided with at least one end annular groove, and a sealing member is provided in the end annular groove; when the locking pin and the locking sleeve are locked, the sealing member is located between the mounting seat and the rocket body fairing to play a sealing role.

[0014] As above, one end of the sleeve body connected to the air conditioning pipe is provided with at least one tail annular groove, and is connected to the air conditioning pipe through the tail annular groove.

[0015] As above, wherein handles are provided on opposite sides of the sleeve body, threaded holes are opened on the handles, and eye bolts are installed through the threaded holes; the eye bolts are connected to the connector recovery device through connecting components; wherein the connecting components include: a wire rope and an anti-rebound tension spring; one end of the anti-rebound tension spring is connected to the eye bolt, the other end of the anti-rebound tension spring is connected to one end of the wire rope, and the other end of the wire rope is connected to the connector recovery device.

[0016] The beneficial effects achieved by this application are as follows:

[0017] (1) The Arrow Air Conditioner Connector of the present application adopts a ball lock structure to achieve reliable docking and detachment of the Arrow Air Conditioner Connector.

[0018] (2) When the Arrow Air Conditioning Connector of the present application is unlocked and separated, the high-pressure gas pressure can overcome the elastic force of the compression spring (i.e., the locking pin spring), which can effectively reduce the separation shock.

[0019] (3) The ball lock mechanism in the Arrow Air Conditioning Connector of the present application can maintain locking in the absence of gas pressure, and the Arrow Air Conditioning Connector does not need to be continuously inflated during operation.

[0020] (4) The Arrow Air Conditioning Connector of the present application adopts a redundant unlocking solution. In order to avoid the inability to unlock due to a failure of the air valve mechanism, the air valve mechanism is provided with two unlocking solenoid valves. When one of the unlocking solenoid valves fails, it can still ensure that the air valve mechanism can supply air and unlock normally. In addition, a redundant unlocking mechanism break pin is added to the ball lock mechanism. The normal unlocking is pneumatic unlocking, and the break unlocking is adopted when the pneumatic unlocking fails.

[0021] (5) The arrow-mounted air-conditioning connector of the present application is provided with an anti-rebound tension spring, which can effectively prevent the arrow-mounted air-conditioning connector from rebounding and colliding with the arrow body after the arrow-mounted air-conditioning connector falls off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 This is a structural schematic diagram of an embodiment of an air conditioning connector on an arrow;

[0024] Figure 2 It is a structural schematic diagram of another embodiment of the arrow-shaped air conditioning connector;

[0025] Figure 3 It is a structural schematic diagram of an embodiment of a ball lock mechanism in a locked state;

[0026] Figure 4 It is a structural schematic diagram of an embodiment of a ball lock mechanism in an unlocked state;

[0027] Figure 5 A schematic structural diagram of an embodiment of a main sleeve;

[0028] Figure 6 A schematic structural diagram of another embodiment of a main sleeve. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0030] like Figure 1-6 As shown, the present application provides an air conditioning connector on an arrow, comprising: a main sleeve 1, at least one set of ball lock mechanisms 2 and an air valve mechanism 3. Among them, the main sleeve 1 at least comprises: a sleeve body 11, a mounting seat 12 is arranged on the outer side of one end of the sleeve body 11, and the other end of the sleeve body 11 is connected to the air conditioning pipe. The ball lock mechanism 2 at least comprises: a locking pin 21, and a locking sleeve 22 matched with the locking pin 21; the locking pin 21 is arranged on the mounting seat 12; the locking sleeve 22 is arranged on the arrow body fairing 4. The air valve mechanism 3 is arranged on the mounting seat 12 and is connected to the locking pin 21 of the ball lock mechanism 2. When locking, the air valve mechanism 3 does not supply air to the locking pin 21 of the ball lock mechanism 2, and the locking pin 21 and the locking sleeve 22 are in a locked state to achieve a locking action. When receiving the separation instruction, the air valve mechanism 3 supplies air to the locking pin 21 of the ball lock mechanism 2, and the locking pin 21 and the locking sleeve 22 are in a separated state, thereby realizing the unlocking action.

[0031] Furthermore, the specific number of the ball lock mechanisms 2 is set according to actual conditions. The present application preferably has three sets, and the three sets of ball lock mechanisms 2 are evenly arranged on the mounting seat 12, which can ensure uniform locking force and reliable locking.

[0032] Specifically, the ball lock mechanism 2 is a pneumatic structure, but is not limited to a pneumatic structure. The present application preferably uses a pneumatic structure. When air is supplied, the ball lock mechanism 2 is unlocked, and when air is stopped, the ball lock mechanism 2 remains locked. During the locking process of the arrow air conditioner connector, there is no need to continuously supply control air.

[0033] Further, such as Figure 2-4 As shown, the locking sleeve 22 at least includes: a locking sleeve flange 221 and a locking sleeve body 223 having a locking sleeve cavity 222; the locking sleeve flange 221 is arranged on the outside of the locking sleeve body 223, and is detachably connected to the arrow body fairing 4 through the locking sleeve flange 221; the locking sleeve cavity 222 includes: a first cavity, a second cavity and a third cavity, the first cavity is a cavity with a first rectangular cross-section, the second cavity is a cavity with an isosceles trapezoidal cross-section, and the third cavity is a cavity with a second rectangular cross-section; one side of the first rectangle is connected to the lower bottom surface of the isosceles trapezoid; the upper bottom surface of the isosceles trapezoid is connected to one side of the second rectangle, that is, the first cavity, the second cavity and the third cavity are an integral cavity.

[0034] The locking pin 21 at least includes: a locking pin flange 211, a locking pin body 213 having a locking pin cavity 212, a sliding body 215 having a sliding channel 214, a wedge rod 216, a locking pin spring 217 and a steel ball 218. The locking pin flange 211 is arranged on the outside of the locking pin body 213, and is detachably connected to the mounting seat 12 through the locking pin flange 211. An air charging port 219 communicating with the locking pin cavity 212 is arranged at one end of the locking pin body 213, and the air valve mechanism 3 is communicated with the locking pin cavity 212 through the air charging port 219; a sliding through hole communicating with the locking pin cavity 212 is arranged at the other end of the locking pin body 213; the diameter of the sliding through hole is smaller than the diameter of the locking pin cavity 212. One end of the sliding body 215 is connected to the other end of the locking pin body 213, and the sliding channel 214 is connected to the locking pin cavity 212 through the sliding through hole; the sliding body 215 is also provided with a steel ball through hole, which is connected to the sliding channel 214. The wedge rod 216 includes: a sliding block 2161, a connecting rod 2162 and a wedge block 2163; one end of the wedge block 2163 does not have a slope 2164, the other end of the wedge block 2163 has a slope 2164, and the diameter of the end of the wedge block 2163 without the slope 2164 is larger than the diameter of the end of the wedge block 2163 with the slope 2164. The sliding block 2161 is disposed in the locking pin cavity 212 and is slidably connected to the inner wall of the locking pin body 213. The side of the sliding block 2161 away from the inflation port 219 is connected to one end of the connecting rod 2162. The other end of the connecting rod 2162 is connected to one end of the wedge block 2163 having the inclined surface 2164. The wedge block 2163 is located in the sliding channel 214 and is slidably connected to the inner wall of the sliding body 215. The locking pin spring 217 is sleeved on the connecting rod 2162 and is located in the locking pin cavity 212. One end of the locking pin spring 217 is in contact or connection with the side of the sliding block 2161 away from the inflation port 219, and the other end of the locking pin spring 217 is in contact or connection with the inner wall of one end of the locking pin body 213 provided with the sliding through hole.

[0035] like Figure 3 As shown, when the locking pin 21 and the locking sleeve 22 are in a locked state, the sliding body 215 is located in the locking sleeve cavity 222, and the steel ball through hole is located at the connection point between the first cavity and the second cavity, the locking pin spring 217 is in an extended state, and the side of the sliding block 2161 away from the locking pin spring 217 contacts the inner wall of one end of the locking pin body 213 provided with the inflation port 219; the end of the wedge block 2163 without the inclined surface 2164 is located at the steel ball through hole, and the steel ball 218 passes through the steel ball through hole, and the bottom of the steel ball 218 contacts the end of the wedge block 2163 without the inclined surface 2164, and the steel ball 218 is simultaneously located in the steel ball through hole, the first cavity and the second cavity, and the top of the steel ball 218 contacts the inner wall of the locking sleeve body 223, and at this time, the steel ball 218 engages the locking pin 21 in the locking sleeve 22.

[0036] like Figure 4 As shown in the figure, when the locking pin 21 and the locking sleeve 22 are in the unlocked state and the locking pin 21 has not yet separated from the locking sleeve 22, the sliding body 215 is located in the locking sleeve cavity 222, and the steel ball through hole is located at the connection between the first cavity and the second cavity, the air valve mechanism 3 supplies air to the locking pin cavity 212 through the inflation port 219, and the side of the sliding block 2161 away from the locking pin spring 217 is in contact with the side of the locking pin body 213 provided with the inflation port 219. The inner wall of the end is separated, and the locking pin spring 217 is in a compressed state; the end of the wedge block 2163 with the inclined surface 2164 is located at the steel ball through hole, and the steel ball 218 passes through the steel ball through hole. The bottom of the steel ball 218 contacts the end of the wedge block 2163 with the inclined surface 2164, and the steel ball 218 is located in the steel ball through hole and the sliding channel. At this time, the steel ball 218 has no locking effect on the locking pin 21 and the locking sleeve 22, and the locking pin 21 can fall out of the locking sleeve 22.

[0037] Specifically, in a state without air pressure, the spring force of the locking pin spring 217 causes the wedge block 2163 to move to the right, the steel ball 218 is forcefully pushed out and then pulls the inclined surface (i.e., the positioning sleeve) inside the second cavity to maintain a locked state; after the air pressure is introduced, the wedge block 2163 moves to the left and releases the lock of the steel ball 218, thereby achieving unlocking.

[0038] Furthermore, the wedge rod 216 is an integrated structure or a separate structure, and the present application prefers an integrated structure.

[0039] Furthermore, a sealing component is provided between the sliding block 2161 and the inner wall of the locking pin body 213 , and the sealing component is used to ensure the air tightness of the sliding block 2161 during the movement process.

[0040] Furthermore, a mounting hole is provided on the locking sleeve flange 221. In a solution without the breakaway pin 225, screws are screwed through the mounting hole to achieve a threaded connection between the locking sleeve 22 and the rocket body fairing 4, thereby ensuring a tight fit between the two.

[0041] Furthermore, a mounting hole is provided on the locking pin flange 211 , and a screw is passed through the mounting hole to realize a threaded connection between the locking pin 21 and the mounting seat 12 .

[0042] Further, as an embodiment, one end of the locking sleeve body 223 is further provided with a break pin through hole 224; the break pin through hole 224 is communicated with the first cavity. The locking sleeve flange 221 is not connected to the rocket body fairing 4, and the break pin 225 connects the locking sleeve 22 and the rocket body fairing 4 through the break pin through hole 224. When the valve mechanism 3 fails, the break pin 225 is used to break and unlock.

[0043] Specifically, in order to improve the reliability of unlocking, a redundant unlocking measure is added to the air conditioning connector on the arrow, and a break pin 225 is provided on the locking sleeve 22 of the ball lock mechanism 2. The locking sleeve 225 is no longer fixedly connected to the arrow body fairing 4 by screws, but is only connected to the arrow body fairing 4 by the break pin 225. Normal unlocking is pneumatic unlocking, that is, the ball lock mechanism 2 is controlled by the air valve mechanism 3 to complete the unlocking action. If the air valve mechanism 3 and the ball lock mechanism 2 fail, the break pin 225 is forcibly broken by the electric driving force.

[0044] The breaking pin 225 is made of a special material that can be broken.

[0045] Furthermore, the gas valve mechanism 3 at least includes: a gas collecting pipe 31 for storing gas and a solenoid valve assembly 32 for controlling the on-off of the gas circuit; the solenoid valve assembly 32 includes at least one unlocking solenoid valve 321. One end of the gas collecting pipe 31 is connected to the gas distribution platform through the gas supply hose 33, and the other end of the gas collecting pipe 31 is connected to the air inlet of the solenoid valve assembly 32 through the gas supply hose 33. The air outlet of the solenoid valve assembly 32 is connected to the locking pin 21 of the ball lock mechanism 2. When locking, the solenoid valve assembly 32 controls the gas circuit to be blocked, the ball lock mechanism 2 is in a non-gas supply state, and the locking pin 21 and the locking sleeve 22 are in a locked state to achieve locking. When receiving a separation command, the solenoid valve assembly 32 controls the gas circuit to be connected, and gas is supplied to the locking pin 21 of the ball lock mechanism 2 through the gas collecting pipe 31, and the locking pin 21 and the locking sleeve 22 are in a separated state to achieve unlocking.

[0046] Specifically, the ball lock mechanism 2 of the present application is a pneumatic unlocking structure. Since it takes a certain amount of time for the gas to be transmitted from the gas distribution platform through the pipeline, it may cause unlocking delays. Therefore, a gas collecting pipe 31 capable of storing a certain amount of gas is provided in the gas valve mechanism 3 to ensure sufficient gas volume and avoid unlocking delays.

[0047] Furthermore, the solenoid valve assembly 32 includes two parallel unlocking solenoid valves 321. The air inlet of one unlocking solenoid valve 321 is connected to the other end of the air collecting pipe 31, and the air outlet of one unlocking solenoid valve 321 is connected to the locking pin 21 of the ball lock mechanism 2. The air inlet of another unlocking solenoid valve 321 is connected to the other end of the air collecting pipe 31, and the air outlet of another unlocking solenoid valve 321 is connected to the locking pin 21 of the ball lock mechanism 2; when both unlocking solenoid valves 321 are normal, any one of the two unlocking solenoid valves 321 is used to control the on-off of the gas circuit, and when one unlocking solenoid valve 321 fails, the other unlocking solenoid valve 321 is switched to control the on-off of the gas circuit.

[0048] Specifically, the specific number of unlocking solenoid valves 321 in the solenoid valve assembly 32 is set according to actual conditions, and multiple unlocking solenoid valves 321 are connected in parallel, and multiple unlocking solenoid valves 321 are redundant backups for each other. In order to avoid the inability to unlock due to the failure of the air valve mechanism 3, the present application preferably has the solenoid valve assembly 32 include two parallel unlocking solenoid valves 321. When one of the unlocking solenoid valves 321 fails, it does not affect the normal operation of the other unlocking solenoid valve 321, thereby realizing redundant control unlocking and ensuring that the rocket can be unlocked before takeoff. When both unlocking solenoid valves 321 fail and cannot be unlocked by normal air supply, the ball lock mechanism 2 fails to unlock, and the locking sleeve 22 is pulled out of the rocket body fairing 4 by forcibly pulling off the break pin 225, thereby realizing a forced unlocking operation.

[0049] Furthermore, a mounting hole is provided on the unlocking solenoid valve 321, and screws are used to connect the unlocking solenoid valve 321 and the mounting seat 12 through the mounting hole, but it is not limited to screw connection. The present application preferably uses screw connection for easy installation and disassembly.

[0050] Further, such as Figure 1 and Figure 5 As shown, the specific shape of the mounting seat 12 is set according to actual conditions, and a circular ring shape is preferred in this application.

[0051] Further, such as Figure 1 and Figure 5 As shown, at least one countersunk hole 121 is provided on the mounting seat 12 , the locking pin 21 is disposed in the countersunk hole 121 , and the sliding body 215 is located at the front end of the mounting seat 12 , and the inflation port 219 is located at the rear end of the mounting seat 12 .

[0052] Specifically, the specific number of the countersunk holes 121 is set according to the actual situation, and the preferred number in this application is three. A set of locking pins 21 of the ball lock mechanism 2 is set in one countersunk hole 121.

[0053] Furthermore, the three countersunk holes 121 disposed on the mounting seat 12 are evenly distributed along the circumferential direction.

[0054] Further, such as Figure 1 and Figure 5 As shown, the mounting base 12 is provided with a rectangular groove 122, the micro switch 5 is provided in the rectangular groove 122, and the micro switch 5 is connected to the electrical connector 6, so as to realize the transmission of electrical signals. When the locking pin 21 and the locking sleeve 22 are in the locked state, the lever of the micro switch 5 is squeezed; when the locking pin 21 and the locking sleeve 22 are unlocked and separated, the lever of the micro switch 5 returns to the initial state, and the separation signal is collected by opening and closing the lever of the micro switch 5.

[0055] Furthermore, the micro switch 5 is connected to the electrical connector 6 via a cable, but is not limited to the cable. The present application prefers a cable.

[0056] Specifically, the micro switch 5 of the present application can be realized by using the existing technology. The structure type of the micro switch 5 is a hinge lever type, and the collection of the separation signal is realized through the micro switch 5.

[0057] Furthermore, the present application is preferably: NS-5 series micro switches, but is not limited to NS-5 series micro switches.

[0058] Furthermore, a protective shell 51 is also provided on the micro switch 5 .

[0059] Specifically, the electrical connector 6 is arranged at the bottom of the air conditioning connector on the arrow, and the electrical connector 6 is divided into an electrical connector socket and a plug, wherein the electrical connector socket is provided with a mounting hole, which is mounted on the protective shell 51 of the micro switch 5 by screws, and the plug is directly inserted into the electrical connector socket.

[0060] Furthermore, the electrical connector 6 of the present application is of the Y8C series, but is not limited to the Y8C series.

[0061] Further, such as Figure 5 and Figure 6 As shown, the front end of the mounting seat 12 is provided with at least one end annular groove 123, and the end annular groove 123 is provided with a sealing member 1231. When the locking pin 21 and the locking sleeve 22 are locked, the sealing member 1231 is located between the mounting seat 12 and the arrow body fairing 4, playing a sealing role.

[0062] Specifically, the specific number of the end annular grooves 123 is set according to actual conditions. The sealing member 1231 is installed in the end annular groove 123 by gluing, but is not limited to being installed in the end annular groove 123 by gluing to achieve the sealing function.

[0063] Furthermore, the sealing member 1231 is a sponge sealing strip with adhesive, but is not limited to a sponge sealing strip with adhesive. The present application preferably uses a sponge sealing strip with adhesive.

[0064] Furthermore, a guide boss 124 is provided at the front end of the mounting seat 12 for guiding so as to facilitate accurate docking of the locking pin 21 and the locking sleeve 22 .

[0065] Furthermore, the specific structure of the sleeve body 11 is set according to actual conditions, and the present application preferably adopts a cylindrical barrel structure.

[0066] Further, such as Figure 1 , Figure 5 and Figure 6 As shown, one end of the sleeve body 11 connected to the air conditioning pipe is provided with at least one tail annular groove 111 , and is connected to the air conditioning pipe through the tail annular groove 111 .

[0067] Specifically, the specific number of the tail annular grooves 111 is set according to actual conditions.

[0068] Further, such as Figure 1 As shown, handles 112 are provided on opposite sides of the sleeve body 11 .

[0069] Specifically, the specific number and specific setting positions of the handles 112 are set according to actual conditions. The present application preferably arranges two handles 112 symmetrically on the left and right sides of the sleeve body 11 near the center of mass of the main sleeve 1 to facilitate installation and docking by the operator.

[0070] Furthermore, a threaded hole 1121 is provided on the handle 112 , and the eye bolt 113 is installed through the threaded hole 1121 ; the eye bolt 113 is connected to the connector recovery device through a connecting component.

[0071] Further, the connecting components include: a steel wire rope and an anti-rebound tension spring 114, but are not limited to the steel wire rope and the anti-rebound tension spring 114. The present application preferably uses a steel wire rope and an anti-rebound tension spring 114. One end of the anti-rebound tension spring 114 is connected to the eye bolt 113, the other end of the anti-rebound tension spring 114 is connected to one end of the steel wire rope, and the other end of the steel wire rope is connected to the connector recovery device.

[0072] Specifically, the connector recovery device is also called a withdrawal device, which can be realized by using existing technology. Two steel wires are provided at one end of the withdrawal device, and the two steel wires are respectively connected to two anti-rebound tension springs 114. When the ball lock mechanism 2 is unlocked and separated, the air-conditioning connector on the arrow is pulled back by the motor drive device in the withdrawal device. When the air-conditioning connector on the arrow falls off, the anti-rebound tension spring 114 can effectively prevent the air-conditioning connector on the arrow from rebounding and colliding with the arrow body.

[0073] Furthermore, the hooks on both sides of the anti-rebound tension spring 114 are directly connected to the eye bolt 113 and the wire rope respectively.

[0074] Specifically, when the ball lock mechanism 2 and the air valve mechanism 3 are used to complete the unlocking action, after the locking pin 21 and the locking sleeve 22 are unlocked, the wire rope is pulled by the connector recovery device to move the main sleeve 1 backward, thereby realizing the rapid detachment and separation of the air-conditioning connector on the arrow, and the anti-rebound tension spring 114 acts to prevent the air-conditioning connector on the arrow from rebounding and colliding with the arrow body. After that, the air-conditioning connector on the arrow is pulled into the connector recovery device away from the rocket, thereby ensuring the smooth take-off of the rocket.

[0075] When the ball lock mechanism 2 and the air valve mechanism 3 fail to unlock and the breaking pin 225 is used to complete the unlocking action, the breaking pin 225 is threadedly connected to the locking sleeve 22 through the rocket body fairing 4, and the anti-rebound tension spring 114 on the main sleeve 1 is connected to the withdrawal mechanism. When the tension reaches a certain level, the breaking pin 225 is broken and pulled out together with the locking sleeve 22. After being pulled out, the main sleeve 1 is moved backward by pulling the wire rope through the connector recovery device, so that the air-conditioning connector on the arrow can be quickly separated and detached. The anti-rebound tension spring 114 prevents the air-conditioning connector on the arrow from rebounding and colliding with the arrow body. After that, the air-conditioning connector on the arrow is pulled to the connector recovery device away from the rocket, thereby ensuring the smooth take-off of the rocket.

[0076] Specifically, the arrow-mounted air conditioning connector of this application has undergone test assessments, and its sealing and shedding performance have met the design requirements. The arrow-mounted air conditioning connector was designed with full consideration of the product's machinability, reducing the difficulty of product processing, reducing the number of supporting equipment for the ground launch support system, saving costs, and improving the reliability and safety of the ground launch system.

[0077] The beneficial effects achieved by this application are as follows:

[0078] (1) The Arrow Air Conditioner Connector of the present application adopts a ball lock structure to achieve reliable docking and detachment of the Arrow Air Conditioner Connector.

[0079] (2) When the Arrow Air Conditioning Connector of the present application is unlocked and separated, the high-pressure gas pressure can overcome the elastic force of the compression spring (i.e., the locking pin spring), which can effectively reduce the separation shock.

[0080] (3) The ball lock mechanism in the Arrow Air Conditioning Connector of the present application can maintain locking in the absence of gas pressure, and the Arrow Air Conditioning Connector does not need to be continuously inflated during operation.

[0081] (4) The Arrow Air Conditioning Connector of the present application adopts a redundant unlocking solution. In order to avoid the inability to unlock due to a failure of the air valve mechanism, the air valve mechanism is provided with two unlocking solenoid valves. When one of the unlocking solenoid valves fails, it can still ensure that the air valve mechanism can supply air and unlock normally. In addition, a redundant unlocking mechanism break pin is added to the ball lock mechanism. The normal unlocking is pneumatic unlocking, and the break unlocking is adopted when the pneumatic unlocking fails.

[0082] (5) The arrow-mounted air-conditioning connector of the present application is provided with an anti-rebound tension spring, which can effectively prevent the arrow-mounted air-conditioning connector from rebounding and colliding with the arrow body after the arrow-mounted air-conditioning connector falls off.

[0083] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the scope of protection of the present application is intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application. Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the protection scope of the present application and its equivalent technology, the present application is also intended to include these modifications and variations.

Claims

1. An arrow-type air conditioning connector, characterized in that: include: A main sleeve, at least one ball lock mechanism and a valve mechanism; The main sleeve at least comprises: a sleeve body, a mounting seat is arranged outside one end of the sleeve body, and the other end of the sleeve body is connected to the air conditioning pipe; The ball lock mechanism at least comprises: a locking pin, and a locking sleeve cooperating with the locking pin; The locking pin is arranged on the mounting seat; The locking sleeve is arranged on the rocket body fairing; The air valve mechanism is arranged on the mounting seat and is communicated with the locking pin of the ball lock mechanism; When locking, the air valve mechanism does not supply air to the locking pin of the ball lock mechanism, and the locking pin and the locking sleeve are in a locked state, thus achieving the locking action; When receiving the separation command, the air valve mechanism supplies air to the locking pin of the ball lock mechanism, and the locking pin and the locking sleeve are in a separated state, thereby realizing the unlocking action.

2. The arrow-on air conditioning connector according to claim 1, characterized in that: The locking sleeve at least comprises: a locking sleeve flange and a locking sleeve body having a locking sleeve cavity; The locking sleeve flange is arranged on the outer side of the locking sleeve body and is detachably connected to the rocket body fairing through the locking sleeve flange; The locking sleeve cavity includes: a first cavity, a second cavity and a third cavity, the first cavity is a cavity with a first rectangular cross section, the second cavity is a cavity with an isosceles trapezoidal cross section, and the third cavity is a cavity with a second rectangular cross section; one side of the first rectangle is connected to the lower bottom surface of the isosceles trapezoid; the upper bottom surface of the isosceles trapezoid is connected to one side of the second rectangle; Wherein, the locking pin at least comprises: a locking pin flange, a locking pin body having a locking pin cavity, a sliding body having a sliding channel, a wedge rod, a locking pin spring and a steel ball; The locking pin flange is arranged on the outer side of the locking pin body and is detachably connected to the mounting seat through the locking pin flange; One end of the locking pin body is provided with an air charging port connected to the locking pin cavity, and the air valve mechanism is connected to the locking pin cavity through the air charging port; the other end of the locking pin body is provided with a sliding through hole connected to the locking pin cavity; the diameter of the sliding through hole is smaller than the diameter of the locking pin cavity; One end of the sliding body is connected to the other end of the locking pin body, and the sliding channel is connected to the locking pin cavity through the sliding through hole; a steel ball through hole is also provided on the sliding body, and the steel ball through hole is connected to the sliding channel; The wedge rod comprises: a sliding block, a connecting rod and a wedge block; one end of the wedge block does not have an inclined surface, the other end of the wedge block has an inclined surface, and the diameter of the end of the wedge block without the inclined surface is greater than the diameter of the end of the wedge block with the inclined surface; The sliding block is disposed in the locking pin cavity and is slidably connected to the inner wall of the locking pin body; A side of the sliding block away from the inflation port is connected to one end of the connecting rod; The other end of the connecting rod is connected to the end of the wedge block having the inclined surface; The wedge block is located in the sliding channel and is slidably connected to the inner wall of the sliding body; The locking pin spring is sleeved on the connecting rod and is located in the locking pin cavity. One end of the locking pin spring contacts or is connected to the side of the sliding block away from the inflation port, and the other end of the locking pin spring contacts or is connected to the inner wall of one end of the locking pin body provided with the sliding through hole. When the locking pin and the locking sleeve are in a locked state, the sliding body is located in the locking sleeve cavity, and the steel ball through hole is located at the connection between the first cavity and the second cavity, the locking pin spring is in an extended state, and the side of the sliding block away from the locking pin spring contacts the inner wall of the end of the locking pin body provided with the inflation port; the end of the wedge block without the inclined surface is located at the steel ball through hole, the steel ball passes through the steel ball through hole, the bottom of the steel ball contacts the end of the wedge block without the inclined surface, the steel ball is simultaneously located in the steel ball through hole, the first cavity and the second cavity, and the top of the steel ball contacts the inner wall of the locking sleeve body, and the steel ball at this time engages the locking pin in the locking sleeve; When the locking pin and the locking sleeve are in an unlocked state and the locking pin has not yet separated from the locking sleeve, the sliding body is located in the locking sleeve cavity, and the steel ball through hole is located at the connection between the first cavity and the second cavity, the air valve mechanism supplies air to the locking pin cavity through the inflation port, and the side of the sliding block away from the locking pin spring is separated from the inner wall of the end of the locking pin body provided with the inflation port, and the locking pin spring is in a compressed state; the end of the wedge block with the inclined surface is located at the steel ball through hole, the steel ball passes through the steel ball through hole, the bottom of the steel ball contacts with the end of the wedge block with the inclined surface, and the steel ball is located in the steel ball through hole and the sliding channel. At this time, the steel ball has no locking effect on the locking pin and the locking sleeve, and the locking pin can fall out of the locking sleeve.

3. The arrow-on air conditioning connector according to claim 2, characterized in that: A break pin through hole is also provided at one end of the locking sleeve body; the break pin through hole is communicated with the first cavity; The locking sleeve flange is not connected to the rocket body fairing, and the break pin connects the locking sleeve and the rocket body fairing through the break pin through hole. When the air valve mechanism fails, the break pin is used to break and unlock.

4. The arrow-on air conditioning connector according to claim 3, characterized in that: The gas valve mechanism at least includes: a gas collecting pipe for storing gas and a solenoid valve assembly for controlling the on-off of the gas path; the solenoid valve assembly includes at least one unlocking solenoid valve; One end of the air collecting pipe is connected to the air distribution platform through an air supply hose, and the other end of the air collecting pipe is connected to the air inlet of the solenoid valve assembly through an air supply hose; The air outlet of the solenoid valve assembly is communicated with the locking pin of the ball lock mechanism; When locking, the solenoid valve assembly controls the air path to be blocked, the ball lock mechanism is in a state of no air supply, and the locking pin and the locking sleeve are in a locked state, thereby achieving locking; When receiving the separation command, the solenoid valve assembly controls the air path to be connected, and supplies air to the locking pin of the ball lock mechanism through the air collecting pipe, so that the locking pin and the locking sleeve are in a separated state, thereby achieving unlocking.

5. The arrow-on air conditioning connector according to claim 4, characterized in that: The solenoid valve assembly includes two parallel unlocking solenoid valves; An air inlet of an unlocking solenoid valve is communicated with the other end of the air collecting pipe, and an air outlet of an unlocking solenoid valve is communicated with the locking pin of the ball lock mechanism; The air inlet of another unlocking solenoid valve is communicated with the other end of the air collecting pipe, and the air outlet of another unlocking solenoid valve is communicated with the locking pin of the ball lock mechanism; When both unlocking solenoid valves are normal, any one of the two unlocking solenoid valves is used to control the on-off of the gas circuit. When one unlocking solenoid valve fails, the other unlocking solenoid valve is switched to control the on-off of the gas circuit.

6. The arrow-on air conditioning connector according to claim 5, characterized in that: At least one countersunk hole is arranged on the mounting seat, a locking pin is arranged in the countersunk hole, the sliding body is located at the front end of the mounting seat, and the inflation port is located at the rear end of the mounting seat.

7. The arrow-on air conditioning connector according to claim 6, characterized in that: A rectangular groove is provided on the mounting seat, a micro switch is provided in the rectangular groove, and the micro switch is connected to the electrical connector to realize electrical signal transmission; When the locking pin and the locking sleeve are in the locked state, the lever of the micro switch is squeezed; when the locking pin and the locking sleeve are unlocked and separated, the lever of the micro switch returns to its initial state, and the separation signal is collected by opening and closing the lever of the micro switch.

8. The arrow-on air conditioning connector according to claim 7, characterized in that: The front end of the mounting seat is provided with at least one end annular groove, and a sealing member is provided in the end annular groove; when the locking pin and the locking sleeve are locked, the sealing member is located between the mounting seat and the rocket body fairing to play a sealing role.

9. The arrow-on air conditioning connector according to claim 8, characterized in that: One end of the sleeve body connected to the air conditioning pipe is provided with at least one tail annular groove, and is connected to the air conditioning pipe through the tail annular groove.

10. The arrow-on air conditioning connector according to claim 9, characterized in that: Handles are provided on opposite sides of the sleeve body, and threaded holes are provided on the handles, through which eyebolts are installed; The eyebolt is connected to the connector recovery device through a connecting member; Among them, the connecting parts include: a steel wire rope and an anti-rebound tension spring; one end of the anti-rebound tension spring is connected to the eye bolt, the other end of the anti-rebound tension spring is connected to one end of the steel wire rope, and the other end of the steel wire rope is connected to the connector recovery device.

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