CN117663916B - Rocket ground charging and discharging connector for liquid carrier rocket - Google Patents

Rocket ground charging and discharging connector for liquid carrier rocket Download PDF

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Publication number
CN117663916B
CN117663916B CN202410137771.9A CN202410137771A CN117663916B CN 117663916 B CN117663916 B CN 117663916B CN 202410137771 A CN202410137771 A CN 202410137771A CN 117663916 B CN117663916 B CN 117663916B
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China
Prior art keywords
bushing
plug body
plug
claw
assembly
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CN117663916A (en
Inventor
王欣宇
郭正柔
罗强
霍亮
张�浩
吕莹
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Jiangsu Shenlan Aerospace Co ltd
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Jiangsu Shenlan Aerospace Co ltd
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Abstract

The invention relates to an rocket ground charging and discharging connector for a liquid carrier rocket, which comprises a plug assembly and a socket assembly; the plug assembly comprises a plug body, at least two clamping claws circumferentially arranged at intervals on the outer circle of the plug body, a bushing sleeved on the plug body and an actuating mechanism arranged on the plug body, wherein the clamping claws are positioned on the inner side of the bushing, the actuating mechanism is connected with the bushing and controls the bushing to axially move along the plug body, one ends of the clamping claws are rotationally connected with the plug body, and the bushing can control all clamping claws to swing on the plug body simultaneously; the socket assembly is provided with an annular limiting clamping seat, when the plug assembly is assembled with the socket assembly in a plugging mode, the ends of the clamping jaws are matched with the ends of the annular limiting clamping seat to realize locking, the matching surface is a conical surface, and the lining forms limiting for each clamping jaw. According to the invention, the limit of each claw is uniformly relieved by arranging the bushings, the risk of falling failure is avoided, the integral structure and the quality are simplified, and the reliability of falling separation between the plug assembly and the socket assembly is improved.

Description

Rocket ground charging and discharging connector for liquid carrier rocket
Technical Field
The invention relates to the technical field of connectors, in particular to an rocket ground charging and discharging connector for a liquid carrier rocket.
Background
The existing low-temperature large-drift-diameter filling and discharging connector for the liquid carrier rocket mainly adopts a three-jaw structure, three jaws are controlled and unlocked by three main cylinders respectively, six small cylinders are redundant, reliable falling of the connector is guaranteed, but the existing connector is complex in structure and large in volume and mass (three large and six small cylinders are used, nine cylinders are used), the three-jaw connector is prone to occurrence of risks of inconsistent unlocking actions, connector falling and blocking and the like, in addition, the existing three-jaw structure is provided with additional blowing mechanisms in the outer circumference of a locking connection structure area, a hot nitrogen blowing mode is adopted, the contact surface of the connector is prevented from being frozen, the requirement on ground supply by hot nitrogen blowing is extremely high, the operation flow of personnel is complex, the blowing mechanisms are directly and integrally exposed in an external environment, and the blowing and anti-icing effects are affected easily.
Disclosure of Invention
In order to solve the technical problems, the invention provides an rocket ground charging and discharging connector for a liquid carrier rocket.
An rocket ground charging and discharging connector for a liquid carrier rocket comprises a plug assembly and a socket assembly;
the plug assembly comprises a plug body, at least two clamping claws circumferentially arranged at intervals on the outer circle of the plug body, a bushing sleeved on the plug body and an actuating mechanism arranged on the plug body, wherein the clamping claws are positioned on the inner side of the bushing, the actuating mechanism is connected with the bushing and controls the bushing to axially move along the plug body, one ends of the clamping claws are rotationally connected with the plug body, and the bushing can control each clamping claw to swing on the plug body at the same time;
the socket assembly is provided with an annular limiting clamping seat, when the plug assembly is assembled with the socket assembly in a plugging mode, the end parts of the clamping jaws are matched with the end parts of the annular limiting clamping seat to achieve locking, the matching surface is a conical surface, and the lining forms limiting for each clamping jaw.
Preferably, the annular limiting clamping seat is provided with a limiting boss, the clamping jaw is provided with a locking boss, when the plug assembly is in insertion fit with the socket assembly, the locking boss is positioned on the outer side of the annular limiting clamping seat, and the locking boss is matched with the limiting boss and realizes locking.
Preferably, the claw is provided with a limiting protruding part, and when the plug assembly and the socket assembly are in plug-in fit, the inner surface of the bushing is contacted with the limiting protruding part and forms a limit.
Preferably, a first elastic component is arranged between the bushing and the plug body and is used for pushing the bushing to move axially to a position for limiting the clamping jaw.
Preferably, the plug body is provided with a push ring, a second elastic component is arranged between the push ring and the plug body and used for pushing the push ring to axially move, when the lining releases the limit of the clamping jaw, the push ring is used for pushing the clamping jaw to swing and expand in a direction away from the plug body, and when the plug component is assembled with the socket component in a plugging manner, the end part of the annular limit clamping seat is abutted to the push ring.
Preferably, the claw is provided with a guide protruding part, and when the push ring moves axially in a direction approaching to the annular limiting clamping seat, the end part of the push ring acts on the guide protruding part and pushes the claw to swing and expand in a direction far away from the plug body.
Preferably, at least two groups of actuating mechanisms are arranged, each group of actuating mechanisms is connected with an independent control air source, each group of actuating mechanisms comprises at least two actuating cylinders, and the actuating cylinders are uniformly distributed along the circumferential direction of the bushing at intervals.
Preferably, a connecting plate is arranged at the end part of the bushing, and an output shaft of the actuating mechanism is fixedly connected with the connecting plate.
Preferably, the bushing is provided with an air blowing connector which is communicated with the mounting cavity of the claw, and the air blowing connector is used for connecting an external air source and blowing air to the mounting cavity of the claw.
Preferably, the bushing is initially provided with a vent hole through which the blow-off fitting communicates with the mounting cavity of the jaw, the vent hole being aligned with the rotational connection area of the jaw with the plug body.
In summary, the limit of each claw is uniformly released by arranging the bushings, the risk of falling failure is avoided, the integral structure and the quality are simplified, and the reliability of falling separation between the plug assembly and the socket assembly is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
FIG. 1 is a schematic view of a plug assembly according to the present invention;
FIG. 2 is a schematic diagram of the mating of a plug assembly with a receptacle assembly in accordance with the present invention;
FIG. 3 is a schematic illustration of the plug assembly of the present invention shown separated from the receptacle assembly;
Fig. 4 is a schematic diagram of the pawl according to the present invention.
The marks in the figure:
1 is a plug body, 2 is a claw, 2-1 is a locking boss, 2-2 is a limit protruding part, 2-3 is a guide protruding part, 3 is a bushing, 4 is an actuating mechanism, 5 is an annular limit clamping seat, 5-1 is a limit protruding part, 6 is a first elastic component, 7 is a push ring, 8 is a second elastic component, 9 is a connecting plate, 10 is an air blowing joint, 11 is an air vent, 12 is an ejector rod, 13 is a retainer, 14 is a fluid cavity, 15 is an actuating cavity, and 16 is a socket body.
Detailed Description
The present invention will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the substances, and not restrictive of the invention. It should be further noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without collision. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 4, an rocket ground charging and discharging connector for a liquid carrier rocket comprises a plug assembly and a socket assembly, wherein the plug assembly is used in a plug-in fit with the socket assembly, the socket assembly is installed at a rocket end, and the plug assembly is used for connecting a propellant line (not shown in the figure) at a ground end;
The plug assembly comprises a plug body 1, at least two clamping claws 2 uniformly arranged on the outer circle of the plug body 1 at intervals in the circumferential direction, a bushing 3 sleeved on the plug body 1, and an actuating mechanism 4 arranged on the plug body 1, wherein specifically, four clamping claws 2 are specifically arranged, the actuating mechanism 4 is specifically arranged as a cylinder mechanism, the clamping claws 2 are positioned on the inner side of the bushing 3, the actuating mechanism 4 is connected with the bushing 3 and controls the bushing 3 to axially move along the plug body 1, a connecting plate 9 is arranged at the end part of the bushing 3, an output shaft of the actuating mechanism 4 is fixedly connected with the connecting plate 9, the connecting plate 9 provides an effective connection fixed foundation, one end of each clamping claw 2 is rotatably connected with the plug body 1, and the bushing 3 can control each clamping claw 2 to swing on the plug body 1 at the same time; the plug assembly further comprises a push rod 12, a retainer 13, a fluid cavity 14 and an actuating cavity 15 which are arranged in the plug assembly, wherein the push rod 12 is of conventional design, the push rod 12 is used for pushing up an on-arrow filling valve, propellant is filled into the fluid cavity 14 and flows through a through hole in the retainer 13, the propellant enters the on-arrow box through the filling valve, and the actuating cavity 15 is filled with pressure gas to drive the push rod 12 to axially move and push up the on-arrow filling valve;
The socket assembly comprises a socket body 16 and an axially extending annular limiting clamping seat 5, the annular limiting clamping seat 5 and the socket body 16 are integrally formed or welded into a whole, when the plug assembly is assembled with the socket assembly in a plugging manner, the end parts of the clamping claws 2 are matched with the end parts of the annular limiting clamping seat 5 to realize locking, the matched surfaces are conical surfaces, namely the end parts of the clamping claws 2 and the end parts of the annular limiting clamping seat 5 are provided with matched conical surfaces, during locking, the clamping claws 2 are positioned at the outer side of the annular limiting clamping seat 5, and the lining 3 limits the clamping claws 2; in the locking connection process, the bushing 3 axially moves towards the direction close to the annular limiting clamping seat 5, so that the non-rotating connection end of each claw 2 swings towards the direction close to the plug body 1 until swinging to be matched with the end part of the annular limiting clamping seat 5, at the moment, the bushing 3 forms swinging limiting action on each claw 2, connection locking between a plug assembly and a socket assembly is achieved, in the action process, as each claw 2 swings under the acting force of the same bushing 3, each claw 2 simultaneously contacts and cooperates with the annular limiting clamping seat 5, uniformity and effectiveness of the locking connection process are guaranteed, in the unlocking process, the actuating mechanism 4 controls the bushing 3 to axially move towards the direction far away from the annular limiting clamping seat 5 until moving to the non-limiting position of each claw 2 by the bushing 3, at the moment, the plug assembly can be effectively separated from the socket assembly, and the moment, the swinging limiting action of each claw 2 is simultaneously controlled by the actuating mechanism 4, namely the locking cooperation between each claw 2 and the annular limiting clamping seat 5 is simultaneously released, therefore, the situation that each claw 2 is inconsistent in unlocking action is not existed, the situation that the whole plug assembly is separated from the socket assembly is effectively avoided, and the falling-off assembly is prevented from the falling-off assembly is effectively, and the falling-off assembly is prevented from the fault assembly.
Further, the annular limiting clamping seat 5 is provided with the limiting boss 5-1, the claw 2 is provided with the locking boss 2-1, when the plug assembly and the socket assembly are assembled in an inserting mode, the locking boss 2-1 is located on the outer side of the annular limiting clamping seat 5, the locking boss 2-1 is matched with the limiting boss 5-1 to achieve locking, the matching surface is a conical surface, the limiting boss 5-1 and the locking boss 2-1 are both provided with conical surfaces, the conical surface of the limiting boss 5-1 is an annular conical surface, the conical surface of the locking boss 2-1 is an arc conical surface, a certain locking contact area is guaranteed, and the locking boss 2-1 can be smoothly separated from the limiting boss 5-1 during unlocking.
Further, the jack catch 2 has spacing bellying 2-2, insert the fit when plug assembly and socket subassembly, bush 3 internal surface and spacing bellying 2-2 contact and form spacingly, so set up, can effectively guarantee that bush 3 is spacing to jack catch 2, the unblock in-process, bush 3 axial displacement is to the position that releases spacing bellying 2-2, the non-rotation link of jack catch 2 swings to the direction of keeping away from plug body 1 gradually, insert the fit in-process when plug assembly and socket subassembly, bush 3 axial displacement is until spacing bellying 2-2 and bush 3 internal surface contact, bush 3 is spacing to spacing bellying 2-2 formation, and the jack catch 2 tip matches and realizes locking with annular spacing cassette 5 tip moreover, the non-rotation link of in-process jack catch 2 swings to the direction that is close to plug body 1 gradually.
In one embodiment of the present invention, as shown in fig. 2 and 3, a first elastic component 6 is disposed between the bushing 3 and the plug body 1, specifically, a spring is disposed between the bushing 3 and the plug body 1, the spring is sleeved on the plug body 1, the first elastic component 6 is used for pushing the bushing 3 to move axially to a position limiting the claws 2, when the plug component and the socket component are assembled, under the auxiliary action of the elastic force of the first elastic component 6, the bushing 3 is pushed to move axially towards a direction close to the annular limiting clamping seat 5, and moves to a position limiting each claw 2, and maintains an elastic pre-tightening force, so that the bushing 3 is prevented from accidentally moving reversely and accidentally disengaging from the limiting position of each claw 2, and when the plug is unlocked, the actuator 4 drives the bushing 3 to move reversely axially until the limitation of the claws 2 by the bushing 3 is released, and in this process, the bushing 3 compresses the first elastic component 6 gradually.
Further, the plug body 1 is provided with annular push rings 7, each claw 2 is distributed outside the push rings 7, a second elastic component 8, specifically a spring, is arranged between the push rings 7 and the plug body 1, the second elastic component 8 is used for pushing the push rings 7 to move axially, when the limit of the claw 2 is released by the bushing 3, the push rings 7 are used for pushing the claw 2 to swing and expand in a direction away from the plug body 1, when the plug component and the socket component are assembled together, the end part of the annular limit clamping seat 5 is abutted against the push rings 7, when the non-rotating connecting end of the claw 2 swings and expands to a limit position in a direction away from the plug body 1, the second elastic component 8 transmits force to the claw 2 through the push rings 7, the first elastic component 6 also transmits force to the claw 2 through the bushing 3, but at the moment, all the components are in a balanced state, before other external forces break the balance, the clamping jaw 2 can not swing all the time and is always in an expanded state, so that the condition effectively ensures that the end part of the annular limiting clamping seat 5 can be smoothly clamped into a cavity surrounded by each clamping jaw 2 during the inserting operation, the end part of the annular limiting clamping seat 5 enters the cavity surrounded by each clamping jaw 2 during the inserting operation, the end part of the annular limiting clamping seat 5 is abutted against the push ring 7 and gradually gives out acting force to the push ring 7, the push ring 7 is pushed to gradually axially move, the push ring 7 compresses the second elastic component 8, the acting force of the annular limiting clamping seat 5 breaks the balance state among all the components, in the process, the first elastic component 6 continuously pushes the bush 3 to axially move in the direction close to the annular limiting clamping seat 5 until the bush 3 drives the non-rotating connecting end of each clamping jaw 2 to swing in the direction close to the plug body 1, the swinging limiting is formed by the bush 3 on each clamping jaw 2, and the end of each claw 2 is matched with the end of the annular limiting clamping seat 5 to realize locking, in the unlocking process, the actuating mechanism 4 controls the bushing 3 to axially move in the direction away from the annular limiting clamping seat 5 until the bushing 3 releases the limiting of each claw 2, at this time, as the annular limiting clamping seat 5 is abutted against the push ring 7, under the action of the elastic force of the second elastic component 8, the push ring 7 gives acting force to the annular limiting clamping seat 5 to drive the claw 2 to be separated from the matched contact with the annular limiting clamping seat 5, namely, the plug component is separated from the socket component.
Further, the claw 2 is provided with a guide protruding portion 2-3, when the push ring 7 moves axially in the direction approaching the annular limiting clamping seat 5, the end portion of the push ring 7 acts on the guide protruding portion 2-3 and pushes the claw 2 to swing and expand in the direction far away from the plug body 1, and the design of the guide protruding portion 2-3 enables the push ring 7 to smoothly and effectively drive the claw 2 to swing in the direction far away from the plug body 1 through the axial movement of the push ring 7.
In one embodiment of the invention, as shown in fig. 1, at least two groups of actuators 4 are arranged, each group of actuators 4 is connected with an independent control air source, each group of actuators 4 comprises at least two actuator cylinders, the actuator cylinders are uniformly distributed along the circumferential direction of the bushing 3, the independent control air sources are arranged in such a way that the actuators 4 are not mutually influenced, the reliability in the process of disengaging control operation is improved, the bushing 3 can be effectively driven to axially act as long as one group of actuators 4 can normally supply air and operate, at least two air cylinders are uniformly arranged along the circumferential direction of each group of actuators 4, the balance of the driving force of the axial movement of the bushing 3 is ensured, and the smoothness of the axial movement of the bushing 3 is further ensured.
In one embodiment of the invention, as shown in fig. 2 and 3, the bushing 3 is provided with the blowing connector 10, the blowing connector 10 is communicated with the installation cavity of the claw 2, the blowing connector 10 is used for connecting an external air source, the external air source is nitrogen at normal temperature and blows air to the installation cavity of the claw 2, and thus, the blowing connector 10 blows air to the installation cavity of the claw 2, so that freezing of each locking part is avoided, and the reliability of disengaging operation is further ensured.
Further, the bushing 3 starts to have the air vent 11, the air blowing joint 10 passes through the installation cavity intercommunication of air vent 11 and jack catch 2, the rotation connection region of jack catch 2 and plug body 1 is aimed at to air vent 11, so set up, the gas that air vent 11 got into gets into jack catch 2 at first and plug body 1 rotates the connection region, gradually to annular spacing cassette 5 direction removal again, guaranteed to blow according to the flow direction and cover whole locking cooperation region, guaranteed that whole locking cooperation region all is by the operation of blowing, and then avoided whole locking cooperation region to freeze, guarantee the reliability of breaking away from the operation.
In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the invention. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the invention. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present invention.

Claims (6)

1. An rocket ground venting connector for a liquid launch vehicle, comprising a plug assembly and a socket assembly;
the plug assembly comprises a plug body, at least two clamping claws circumferentially arranged at intervals on the outer circle of the plug body, a bushing sleeved on the plug body and an actuating mechanism arranged on the plug body, wherein the clamping claws are positioned on the inner side of the bushing, the actuating mechanism is connected with the bushing and controls the bushing to axially move along the plug body, one ends of the clamping claws are rotationally connected with the plug body, and the bushing can control each clamping claw to swing on the plug body at the same time;
the socket assembly is provided with an annular limiting clamping seat, when the plug assembly is assembled with the socket assembly in a plugging way, the end parts of the clamping jaws are matched with the end parts of the annular limiting clamping seat to realize locking, the matching surface is a conical surface, and the lining forms limiting for each clamping jaw;
The bushing is provided with an air blowing connector which is communicated with the mounting cavity of the claw, and the air blowing connector is used for connecting an external air source and blowing air to the mounting cavity of the claw;
The bushing is provided with a vent hole, the air blowing connector is communicated with the mounting cavity of the claw through the vent hole, and the vent hole is aligned to the rotation connection area of the claw and the plug body;
The gas entering through the vent holes firstly enters into the rotary connection area of the clamping jaw and the plug body and then gradually moves towards the annular limiting clamping seat so as to ensure that the whole locking matching area is covered by the blown gas according to the flow direction;
At least two groups of execution mechanisms are arranged, each group of execution mechanisms is connected with an independent control air source, each group of execution mechanisms comprises at least two execution cylinders, and the execution cylinders are uniformly distributed along the circumferential direction of the bushing at intervals;
the end part of the bushing is provided with a connecting plate, and an output shaft of the actuating mechanism is fixedly connected with the connecting plate.
2. The connector of claim 1, wherein the annular stop collar has a stop boss, and the pawl has a locking boss, the locking boss being located outside the annular stop collar when the plug assembly is mated with the receptacle assembly, the locking boss mating with the stop boss and effecting locking.
3. The charging and discharging connector according to claim 1, wherein the claw has a limit projection, and the bushing inner surface contacts and forms a limit with the limit projection when the plug assembly is inserted into engagement with the socket assembly.
4. The charging and discharging connector according to claim 1, wherein a first elastic member is provided between the bushing and the plug body, the first elastic member being configured to urge the bushing to move axially to a position that forms a limit for the claw.
5. The plug connector according to claim 1, wherein the plug body is provided with a push ring, a second elastic component is disposed between the push ring and the plug body, the second elastic component is used for pushing the push ring to axially move, when the bushing releases the limit of the claw, the push ring is used for pushing the claw to swing and expand in a direction away from the plug body, and when the plug component is assembled with the socket component in a plugging manner, the end of the annular limit clamping seat is abutted against the push ring.
6. The connector of claim 5, wherein the pawl has a guide projection, and wherein when the push ring moves axially in a direction toward the annular retainer, the push ring end acts on the guide projection and urges the pawl to swing and expand in a direction away from the plug body.
CN202410137771.9A 2024-02-01 2024-02-01 Rocket ground charging and discharging connector for liquid carrier rocket Active CN117663916B (en)

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CN202410137771.9A CN117663916B (en) 2024-02-01 2024-02-01 Rocket ground charging and discharging connector for liquid carrier rocket

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Application Number Priority Date Filing Date Title
CN202410137771.9A CN117663916B (en) 2024-02-01 2024-02-01 Rocket ground charging and discharging connector for liquid carrier rocket

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CN117663916B true CN117663916B (en) 2024-06-04

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2844622Y (en) * 2005-11-11 2006-12-06 闻长庆 Jaw-style spinning fast joint
JP2009002479A (en) * 2007-06-25 2009-01-08 Yokohama Rubber Co Ltd:The Single action joint
CN102094879A (en) * 2009-11-12 2011-06-15 梅西耶-布加蒂公司 Locking device with catches and a rotary locking sleeve
CN107606361A (en) * 2017-09-20 2018-01-19 青岛理工大学 Jack catchs type hydraulic-driven submarine pipeline attachment means
CN211259967U (en) * 2019-12-24 2020-08-14 重庆小康工业集团股份有限公司 Fuel pipeline quick connector
CN112923150A (en) * 2021-02-01 2021-06-08 珠海格力电器股份有限公司 Coupling assembling, pipe-line system and air conditioning system
CN115743631A (en) * 2022-10-21 2023-03-07 上海宇航***工程研究所 Automatic docking system and method for carrier rocket add-and-drop connectors
CN218863542U (en) * 2022-11-14 2023-04-14 上海舜华新能源***有限公司 Hydrogenation rifle locking device with function prevents frostbite
CN116066643A (en) * 2023-04-06 2023-05-05 江苏深蓝航天有限公司 Air pipe connector for carrier rocket

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2844622Y (en) * 2005-11-11 2006-12-06 闻长庆 Jaw-style spinning fast joint
JP2009002479A (en) * 2007-06-25 2009-01-08 Yokohama Rubber Co Ltd:The Single action joint
CN102094879A (en) * 2009-11-12 2011-06-15 梅西耶-布加蒂公司 Locking device with catches and a rotary locking sleeve
CN107606361A (en) * 2017-09-20 2018-01-19 青岛理工大学 Jack catchs type hydraulic-driven submarine pipeline attachment means
CN211259967U (en) * 2019-12-24 2020-08-14 重庆小康工业集团股份有限公司 Fuel pipeline quick connector
CN112923150A (en) * 2021-02-01 2021-06-08 珠海格力电器股份有限公司 Coupling assembling, pipe-line system and air conditioning system
CN115743631A (en) * 2022-10-21 2023-03-07 上海宇航***工程研究所 Automatic docking system and method for carrier rocket add-and-drop connectors
CN218863542U (en) * 2022-11-14 2023-04-14 上海舜华新能源***有限公司 Hydrogenation rifle locking device with function prevents frostbite
CN116066643A (en) * 2023-04-06 2023-05-05 江苏深蓝航天有限公司 Air pipe connector for carrier rocket

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