Gas plugging connector and gas supply system

Abstract

The utility model provides a gas plugging connector and a gas supply system. The gas plugging connector at least comprises a ground plate, a rubber plate, a universal joint, a square base, a lower nut, an adjusting nut, an upper nut, a ball head rod, a ball head cover plate, a lower gas circuit plate and a socket. The ground plate is fixedly connected with the rubber plate, and the rubber plate is fixedly connected with the square base through the universal joint. The ball head rod comprises a first adjusting rod and a second adjusting rod which are connected through an adjusting nut, and the length of the ball head rod is adjusted through the adjusting nut so that the lower gas circuit board can be in butt joint with the rocket body. And after the rocket bodies are butted, the adjusting nut is locked by using the lower nut and the upper nut. The ball head cover plate is fixedly connected with the lower gas circuit plate, the ball head of the ball head rod is pressed between the ball head cover plate and the lower gas circuit plate, and the ball head rod can rotate relative to the ball head cover plate and the lower gas circuit plate. One end of the socket fixedly arranged on the lower gas circuit board is connected with a ground pipeline, and the other end is butted with a rocket body plug.

Description

TECHNICAL FIELD

[0001] The utility model relates to space launch vehicle technical field especially relates to a gas plug connector and gas supply system. BACKGROUND

[0002] Liquid rocket needs to supply gas to the rocket before launching, and the current rocket body and ground pipeline need to be connected by a connector for gas supply, and the connector needs to be dropped after the rocket is ignited. At present, the gas connector is connected with the rocket body by mechanical means, and is unlocked and dropped after the rocket is ignited. This unlocking and dropping method has the risk of not being able to unlock smoothly, which can easily lead to the suspension of launching.

[0003] Therefore, it is urgent to provide a connector and gas supply system that can be dropped smoothly in zero seconds. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a gas plug connector and gas supply system, which realizes the connection and disconnection of the connector and the interface on the rocket through plug-in connection, greatly improves the reliability of the connector dropping, and avoids the catastrophic failure caused by the failure of the connector to drop during the launching of the rocket.

[0005] The utility model provides a gas plug connector for connecting the rocket body and the ground pipeline and supplying gas to the rocket by the connector. The gas plug connector of the utility model at least includes ground fixed unit, adjusting unit and lower gas circuit board which are connected in sequence, and the end surface of the lower gas circuit board is provided with a socket; one end of the socket is used for connecting with the ground pipeline, and the other end is used for connecting with the plug on the rocket; the adjusting unit at least includes first adjusting rod, adjusting nut and second adjusting rod; one end of the first adjusting rod is connected with the ground fixed unit, and the other end is connected with the second adjusting rod through the adjusting nut, and the second adjusting rod is adjusted to rise and fall by rotating the adjusting nut; the end of the second adjusting rod away from the adjusting nut is provided with a ball head, and the end surface of the lower gas circuit board facing the ground is provided with a ball socket matched with the ball head; the ball head is rotatably arranged in the ball socket.

[0006] In one embodiment, the adjusting unit further includes an upper fixed nut and a lower fixed nut; the upper fixed nut is arranged on the second adjusting rod, and the lower fixed nut is arranged on the first adjusting rod; the upper fixed nut and the lower fixed nut lock the adjusting nut along the two ends of the adjusting nut.

[0007] In one embodiment, after the ball head and the ball socket are matched and connected, the ball socket is pressed tightly by a ball head cover plate to limit the ball head from coming out.

[0008] In one embodiment, the ground fixed unit at least includes a ground plate, a rubber plate and a square base connected in sequence, the square base is fixedly connected with the first adjusting rod away from one side of the ground plate; the rubber plate is rotatably connected with the square base through a universal joint to adapt to the deviation caused by installation and the deviation caused by the flight of the rocket body; the ground plate is used for being fixedly arranged on the ground equipment.

[0009] In one embodiment, a protrusion is arranged at the center position of the end surface of the lower gas path plate away from the ground, and the protrusion is used for matched connection with a positioning hole of the upper gas path plate of the rocket.

[0010] In one embodiment, the socket is specifically at least one connector joint penetrating through the lower gas path plate and fixedly arranged around the protrusion; one end of the connector joint away from the ground is arranged beyond the lower gas path plate to facilitate connection with the ground pipeline; the other end of the connector joint is substantially flush with the top of the lower gas path plate to be matched with the plug of the rocket.

[0011] In one embodiment, six connector joints are arranged around the protrusion, and the diameters of the connector joints are not completely equal.

[0012] In one embodiment, the ground plate is provided with a plurality of fixing holes; and the ground plate is fixedly connected with the ground equipment through the fixing holes.

[0013] In one embodiment, a sealing ring is arranged at the interface position of the socket used for matched connection with the plug of the rocket.

[0014] The utility model also provides a gas supply system at least including the gas plug connector in any one of the above embodiments.

[0015] The gas plug connector and the gas supply system have at least one of the following beneficial effects:

[0016] First, the gas plug connector and the gas supply system can integrate multiple gas supply projects on the lower gas path plate, realize single matching of the connector through the arrangement of the plurality of sockets and plugs, and after the rocket takes off, the connector can only move away from the upper gas path plate of the rocket, so that the upper gas path plate of the rocket and the ground gas path plate can be quickly separated, and the function of zero-second falling off can be achieved.

[0017] Second, the gas plug connector and the gas supply system can adapt to the error caused by the installation process and the rocket taking off process, and have high flexibility.

[0018] Third, the gas plug connector and the gas supply system have compact structure and simple use, and can be applied to multi-way gas supply.

[0019] Those skilled in the art will appreciate other features and advantages upon reading the following detailed description, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative labor.

[0021] Figure 1 is a schematic diagram of the overall structure of the connector of the embodiment of the present application.

[0022] Figure 2 is a schematic diagram of the A-A cross-sectional structure of the connector of the embodiment of the present application.

[0023] Figure 3 is a schematic diagram of the three-dimensional structure of the connector of the embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present application more clear, the features and exemplary embodiments of each aspect of the present application will be described in detail below. The specific embodiments described herein are configured to explain the present application, and are used to illustrate the principles of the present application, and are not configured to limit the present application. In addition, the components in the drawings are not necessarily drawn to scale. For example, the size of some components in the drawings can be enlarged for other components or regions to help understand the embodiments of the present application.

[0025] The orientation words appearing in the following description are the directions shown in the drawings, and are not limited to the specific structure of the embodiments of the present application. In the description of the present application, it should be noted that unless otherwise specified, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Moreover, the terms "including", "comprising", "having" and the like are used synonymously to denote open ended inclusion, and do not exclude additional, unrecited elements or method steps. The terms "a", "an" and "the" are used synonymously to denote one or more, unless otherwise expressly limited by context.

[0027] Spatially relative terms such as "beneath", "below", "lower", "under", "above", "upper", "over", "on", and "side", are used to facilitate recitation and description herein and are not always intended to convey positional relationship. Moreover, these terms can be used synonymously to indicate different spatial orientations of an entity from different points of view although structurally or positionally there can be no difference between entities which are described using these terms. Depending upon the context, in which used, the relative terms can also be used to indicate that the position of an element can be relative to another element. For example, "one element is on another element" can mean that the two elements are in direct contact, or there can be other elements between the two elements. Furthermore, terms such as "first", "second", and "third" are also used to describe various elements, regions, portions and the like and are not intended to be limiting. Similar terms are used throughout the description to indicate similar elements.

[0028] The present application can be implemented without some of these specific details, which are provided only to provide a better understanding of the present application. The following description of the embodiments is merely exemplary in nature and is provided to give a better description of the application.

[0029] Referring to Figure 1 , Figure 2 The gas plug connector of the present application at least comprises a ground fixing unit 1, an adjusting unit and a lower gas line plate 9 which are connected in sequence. The end surface of the lower gas line plate 9 is provided with a socket 91, one end of which is used for connecting with the ground pipeline, and the other end of which is used for connecting with the plug on the arrow. The adjusting unit is used for adjusting the length (which can also be understood as the height in the figure) during the installation of the connector, so as to facilitate the butt joint of the socket 91 of the lower gas line plate 9 and the plug on the arrow. Specifically, the adjusting unit at least comprises a first adjusting rod 2, an adjusting nut 3 and a second adjusting rod 4 which are connected in sequence. One end of the first adjusting rod 2 is connected with the ground fixing unit 1, and the other end thereof is connected with the second adjusting rod 4 through the adjusting nut 3. The second adjusting rod 4 is adjusted to ascend or descend by rotating the adjusting nut 3, so that the length of the connector can be adjusted according to the actual installation requirement, so as to adapt to the distance between the connector interface of the arrow body and the ground.

[0030] Further, in order to adapt to the connector installation error and the error caused by the arrow body in the flight process, a ball head 41 can be arranged at the end of the second adjusting rod 4 away from the adjusting nut 3, and a ball socket matched with the ball head 41 is arranged on the end face of the lower gas path plate 9 facing the ground. The ball head 41 is rotatably arranged in the ball socket, so that the lower gas path plate 9 can rotate relative to the second adjusting rod 4. That is, during the connection of the socket 91 of the lower gas path plate 9 and the arrow plug, the inclination angle and the rotation angle of the lower gas path plate 9 can be adjusted to realize accurate butt joint with the arrow plug.

[0031] It should be noted that after the rocket is ignited, the connector of the embodiment will be separated after the rocket takes off to a certain height. Therefore, the connector of the embodiment can adapt to the error caused by the rocket taking off through the rotatable arrangement of the ball head and the ball socket.

[0032] Further, in order to facilitate the rotation of the adjusting nut 3, a clamping plane 411 can be arranged on the side of the second adjusting rod 4 close to the ball head 41, so as to grasp and fix the second adjusting rod 4, and prevent the second adjusting rod 4 from rotating synchronously with the adjusting nut 3.

[0033] In an embodiment, the adjusting unit further comprises an upper fixing nut 5 and a lower fixing nut 6. The upper fixing nut 5 is arranged on the second adjusting rod 4, and the lower fixing nut 6 is arranged on the first adjusting rod 2. When the adjusting nut 3 is rotated, the first adjusting rod 2 and the second adjusting rod 4 approach or move away from each other. After the adjusting nut 3 is adjusted in place, the upper fixing nut 5 and the lower fixing nut 6 are respectively tightened along the two ends of the adjusting nut 3 to lock them, so as to prevent the adjusting nut 3 from loosening during the gas supply process.

[0034] In an embodiment, in order to prevent the ball head from coming out of the ball socket, a ball head cover plate can be arranged at the opening of the ball socket. Specifically, after the ball head is matched and connected with the ball socket, the ball head is limited in the ball socket by installing the ball head cover plate. In order to facilitate installation, the ball head cover plate can include two half ball head cover plates, and the two half ball head cover plates are respectively fixedly connected with the lower gas path plate by screwing or welding, etc. The ball head of the second adjusting rod is limited between the ball head cover plate and the lower gas path plate.

[0035] Meanwhile, referring to Figure 1 , Figure 2 and Figure 3 , in the above embodiment, the ground fixing unit 1 at least comprises a ground plate 11, a rubber plate 12 and a square base 13 connected in sequence, and the square base 13 is fixedly connected with the first adjusting rod 2 away from the ground plate 11. Among them, one side of the ground plate 11 is arranged on the ground equipment, and the other side is fixedly connected with the rubber plate 12, and the side away from the ground plate 11 of the rubber plate 12 is rotatably connected with the square base 13 through the universal joint 14, so as to further adapt to the deviation caused by installation and the deviation caused by the arrow body in flight.

[0036] The ground plate 11 in the embodiment is provided with a plurality of fixing holes, and is fixedly connected with the ground equipment through the fixing holes to realize the fixation of the ground plate.

[0037] The gas plug connector in the embodiment adopts a ball head-ball socket and universal joint series connection structure to form a double-degree-of-freedom compensation system, which can realize static deflection compensation and dynamic compensation of angular displacement deviation and small amplitude axial vibration of the arrow body in flight.

[0038] The arrow body flight process mentioned in the utility model specification only refers to the process from rocket ignition to the connector falling off, and the arrow body flight process after the connector falling off is not considered.

[0039] In one embodiment, the protrusion 92 is arranged at the center position of the end surface of the lower gas path plate 9 away from the ground, and is used for cooperating with the positioning hole of the upper gas path plate of the arrow. That is, when the connector and the arrow body interface end are docked, the protrusion 92 of the lower gas path plate 9 is first inserted into the positioning hole of the upper gas path plate of the arrow, and the cooperation of the protrusion and the positioning hole realizes the accurate positioning and rapid connection of the connector and the arrow body.

[0040] Further, in order to optimize the layout of the connector gas supply system, a plurality of connector joints are arranged on the lower gas path plate 9. For example, the socket 91 is at least one connector joint 911 penetrating the lower gas path plate 9 and fixedly arranged around the protrusion 92, and the end of the connector joint 911 towards the ground is arranged beyond the lower gas path plate 9, so as to be connected with the ground pipeline. The other end of the connector joint is basically flush with the top of the lower gas path plate 9, and is used for being docked with the plug of the upper gas path plate. The plug of the upper gas path plate and the socket of the lower gas path plate are arranged in one-to-one matching, and each pair of plug and socket connected forms a gas supply pipeline channel.

[0041] Since the diameters of the gas supply pipelines may be different, six connector joints can be arranged around the protrusion according to actual use requirements, and the diameters of the connector joints are not completely equal.

[0042] The connector structure of the utility model embodiment is compact, simple to use, light in weight, and can be applied to multi-path gas supply.

[0043] The gas supply connector can quickly complete the alignment and connection of a plurality of gas supply pipelines, and the work efficiency is obviously improved. In addition, the gas supply connector realizes connection and falling off through the plug-in and plug-out mode, so that the connector falling off process after the arrow body takes off is easy to operate, has high reliability, good safety and stability, and can meet the demand of zero-second falling off.

[0044] In any one of the above embodiments, a sealing ring is arranged at a position where the socket of the ground gas path board and the plug of the arrow gas path board are matched and connected, for sealing the gas supply channel formed after the socket and the arrow plug are connected.

[0045] The gas plug-in connector comprises a ground plate, a rubber plate, a universal joint, a square base, a lower nut, an adjusting nut, an upper nut, a first adjusting rod, a second adjusting rod, a ball head cover plate, a lower gas path board and a socket. The ground plate is fixedly connected with the rubber plate, and the rubber plate is fixedly connected with the square base through the universal joint. The first adjusting rod and the second adjusting rod are connected through the adjusting nut, and the distance between the first adjusting rod and the second adjusting rod is changed through the adjusting nut, so that the lower gas path board is connected with the arrow body. After the arrow body is connected, the adjusting nut is locked by the lower nut and the upper nut. The ball head cover plate is fixedly connected with the lower gas path board, the ball head of the ball head rod is pressed between the ball head cover plate and the lower gas path board, and the ball head rod can rotate relative to the ball head cover plate and the lower gas path board. The socket is fixedly arranged at one end of the lower gas path board and used for connecting the ground pipeline, and the other end is used for connecting with the arrow plug.

[0046] The above embodiments can be combined with each other, and have corresponding technical effects.

[0047] The utility model provides a kind of gas supply system on the other aspect, at least comprising the gas plug-in connector in any one of the above embodiments.

[0048] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A gas plug connector for connecting a missile body to a ground line for supplying gas to the missile by means of the connector, characterized in that At least comprising ground fixed unit, adjusting unit and lower gas path plate which are connected in sequence, the end surface of the lower gas path plate is provided with socket; one end of the socket is used for connecting with ground pipeline, the other end is used for connecting with arrow plug; The adjusting unit at least comprises first adjusting rod, adjusting nut and second adjusting rod; one end of the first adjusting rod is connected with the ground fixed unit, the other end is connected with the second adjusting rod through the adjusting nut, the second adjusting rod is adjusted to ascend and descend by rotating the adjusting nut; The end of the second adjusting rod away from the adjusting nut is provided with ball head, the end surface of the lower gas path plate facing ground is provided with ball socket matched with the ball head; the ball head is rotatably arranged in the ball socket.

2. The gas plug connector of claim 1, wherein, The adjusting unit further comprises upper fixed nut and lower fixed nut; the upper fixed nut is arranged on the second adjusting rod, the lower fixed nut is arranged on the first adjusting rod; the upper fixed nut and the lower fixed nut lock the adjusting nut from both ends.

3. The gas plug connector of claim 1, wherein, After the ball head and the ball socket are matched and connected, the ball socket is pressed tightly by ball head cover plate to limit the ball head from coming out.

4. The gas plug connector of claim 2, wherein, The ground fixed unit at least comprises ground plate, rubber plate and square base which are connected in sequence, the side of the square base away from the ground plate is used for fixedly connecting with the first adjusting rod; The rubber plate and the square base are rotatably connected through universal joint to adapt to the deviation caused by installation and the deviation caused by arrow body flight; the ground plate is used for fixedly arranging on ground equipment.

5. The gas plug connector of claim 1, wherein, The end surface of the lower gas path plate away from ground is provided with protrusion in the center position, the protrusion is used for matched connection with positioning hole of arrow upper gas path plate.

6. The gas plug connector of claim 5, wherein, The socket is specifically at least one connector joint which penetrates the lower gas path plate and is fixedly arranged around the protrusion; one end of the connector joint facing ground is arranged beyond the lower gas path plate to facilitate connection with ground pipeline; the other end of the connector joint is basically flush with the top of the lower gas path plate to be used for butt joint with arrow plug.

7. The gas plug connector of claim 6, wherein, Six connector joints are arranged around the protrusion, the diameters of the connector joints are not completely equal.

8. The gas plug connector of claim 4, wherein, The ground plate is provided with multiple fixed holes; the ground plate is fixedly connected with ground equipment through the fixed holes.

9. Gas plug connector according to any of claims 1 to 8, characterized in that The interface position of the socket used for matched butt joint with arrow plug is provided with sealing ring.

10. A gas supply system characterized by, At least comprising gas plug connector as claimed in any one of claims 1 to 9.

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