Movement limiting device for separated electric connector after separation

Abstract

The utility model discloses a motion limiting device after separation of a separation electric connector, which belongs to the technical field of rocket separation and comprises a separation electric connector socket, a separation electric connector plug and a limiting mechanism. The separated electric connector plug can be matched with the separated electric connector socket in a plugging manner; the limiting mechanism comprises a limiting piece and a separation steel cable; the limiting piece is fixedly connected with a lower-stage rocket body of the rocket; and the limiting mechanism is configured to enable the separation steel cable to restrain the separation electric connector plug when the separation electric connector plug is separated from the separation electric connector socket, so that the separation electric connector is prevented from being in contact with the rocket engine jet pipe. According to the utility model, the separating electric connector plug can be restrained at the rocket interstage separating moment, the rocket engine jet pipe is prevented from being damaged by collision due to random swinging, and the flying stability of the rocket is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rocket separation, in particular to a separation electric connector movement limiting device after separation. Background Art

[0002] The separation electrical connector is an important component of the launch vehicle. It is used to connect the cables of two adjacent stages of the rocket during flight to ensure flight stability.

[0003] There is a moment of stage separation during the flight of a multi-stage launch vehicle. During the stage separation process, the cables connecting the two adjacent stages are disconnected as the cabin separates. Generally speaking, the separation connector cable plug is located in the lower stage rocket body, and the cable socket is located in the upper stage rocket body. When the rocket is not separated, the upper stage engine nozzle is located inside the lower stage rocket body. When the cable plug is dislodged during separation, if there is no restraint device to restrain the movement of the plug, there is a risk that the plug will swing freely and hit the upper stage engine nozzle.

[0004] In view of this, it is necessary to provide a new technical solution to solve the above problems. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the present application provides a separation electric connector after separation movement limiting device, which can impose constraints on the separation electric connector plug at the moment of separation between rocket stages to prevent it from randomly swinging and bumping into the rocket engine nozzle, thereby ensuring the stability of the rocket flight.

[0006] A separation movement limiting device for a separation electrical connector after separation, comprising:

[0007] A separation electrical connector socket; the separation electrical connector socket is fixedly connected to the rocket upper stage body;

[0008] A separation electrical connector plug; the separation electrical connector plug can be plugged and matched with the separation electrical connector socket;

[0009] Limiting mechanism; the limiting mechanism includes a limiting member and a separation steel cable; the limiting member is fixedly connected to the lower stage body of the rocket; one end of the separation steel cable is fixedly connected or slidably connected to the limiting member; the other end of the separation steel cable is fixedly connected to the separation electrical connector plug; the limiting mechanism is configured so that when the separation electrical connector plug is disengaged from the separation electrical connector socket, the separation steel cable constrains the separation electrical connector plug to prevent the separation electrical connector from contacting the rocket engine nozzle.

[0010] Preferably, the limiting member is a rod-shaped structure or a long strip-shaped structure; a groove is provided at the upper end of the limiting member; one end of the separation steel cable is passed through the groove and can slide along the groove; the end portion of one end of the separation steel cable passed through the groove has an end limiting block larger than the minimum cross-sectional size of the groove.

[0011] Preferably, the limiting member is arranged along the axial direction of the rocket.

[0012] Preferably, it also includes a limit member mounting bracket for fixedly connecting the limit member and the rocket lower stage body; the limit member mounting bracket is fixedly connected to the rocket lower stage body; the limit member is fixedly mounted on the limit member mounting bracket.

[0013] Preferably, the lower end of the limiting member includes a threaded structure; the lower end of the limiting member is detachably fixedly connected to the limiting member mounting support via the threaded structure.

[0014] Preferably, one end of the separation steel cable is tied and fixed to the limiting member.

[0015] Preferably, a through hole is provided on the limiting member; one end of the separation steel cable is passed through the through hole, and the end portion of the separation steel cable has an end limit block larger than the through hole on the limiting member.

[0016] Preferably, it also includes a socket mounting bracket for fixedly connecting the separation electrical connector socket to the rocket upper stage body; the socket mounting bracket is arranged in the rocket upper stage body and fixedly connected to the rocket upper stage body; the separation electrical connector socket is fixedly mounted on the socket mounting bracket.

[0017] Compared with the prior art, this application has at least the following beneficial effects:

[0018] 1. The utility model can impose constraints on the separation electrical connector plug at the moment of separation between rocket stages, preventing it from randomly swinging and bumping into the rocket engine nozzle, thereby ensuring the stability of the rocket flight.

[0019] 2. The limiter of the utility model can be provided with a groove body, so that the separation cable has better adaptability and sliding dynamics at the moment of separation between rocket stages, and can ensure that the separation cable is set to the minimum length, thereby reducing the weight of the motion limiter after the separation of the separation electrical connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-restrictive manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale.

[0021] In the attached figure:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the application state of the utility model.

[0024] The above drawings include the following reference numerals:

[0025] 1. Rocket engine nozzle; 2. Rocket upper stage body; 3. Separation electrical connector socket; 4. Socket mounting bracket; 5. Separation electrical connector plug; 6. Limiting piece; 7. Separation steel cable; 8. Limiting piece mounting bracket; 9. Rocket lower stage body. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0027] like Figure 1-Figure 2 As shown, a separation electric connector post-separation movement limiting device comprises: a separation electric connector socket 3, a separation electric connector plug 5 and a limiting mechanism; the separation electric connector socket 3 is fixedly connected to the rocket upper stage body 2; the separation electric connector plug 5 can be plugged and matched with the separation electric connector socket 3; the limiting mechanism comprises a limiting member 6 and a separation steel cable 7; the limiting member 6 is fixedly connected to the rocket lower stage body 9; one end of the separation steel cable 7 is fixedly connected or slidably connected to the limiting member 6; the other end of the separation steel cable 7 is fixedly connected to the separation electric connector plug 5; the limiting mechanism is configured so that when the separation electric connector plug 5 is detached from the separation electric connector socket 3, the separation steel cable 7 constrains the separation electric connector plug 5, so that the separation electric connector avoids contact with the rocket engine nozzle 1.

[0028] Preferably, the limiting member 6 is a rod-shaped structure or a long strip-shaped structure; a groove is provided at the upper end of the limiting member 6; one end of the separation steel cable 7 is inserted into the groove and can slide along the groove; the end portion of one end of the separation steel cable 7 inserted into the groove has an end stopper larger than the minimum cross-sectional size of the groove. The groove provided at the upper end of the limiting member 6 enables the separation steel cable 7 to slide along the groove under the action of gravity or inertia when the separation electrical connector plug 5 falls off. The separation steel cable 7 sliding along the groove can have better adaptability and sliding dynamics, and can be set to the minimum length when the separation steel cable 7 is separated, thereby reducing the weight of the motion limit device after the separation electrical connector is separated.

[0029] It should be noted that the length of the separation steel cable 7 is strictly limited to ensure that no matter where the separation steel cable 7 slides to in the groove body, the distance between the connection end between the separation steel cable 7 and the limit member 6 and the separation electrical connector plug 5 is smaller than the distance between the limit member 6 and the rocket engine nozzle 1, thereby ensuring that the separation electrical connector plug 5 will not touch the rocket engine nozzle 1.

[0030] Preferably, the limiting member 6 is arranged along the axial direction of the rocket. The limiting member 6 arranged along the axial direction of the rocket has good guiding performance, so that the separation cable 7 can move in the axial direction of the rocket, and the movement limiting device after the separation of the separation electrical connector has a smaller space occupancy rate.

[0031] In addition, according to the spatial layout inside the rocket, the limiter 6 may also have a certain angle relative to the axial direction of the rocket, so that the motion limiter device has a smaller space occupancy rate after the separation of the electrical connector, while adapting to the design requirements of the rocket and the setting requirements of other components of the rocket.

[0032] Preferably, a movement limiting device after separation of a separation electrical connector also includes a limit member mounting bracket 8 for fixedly connecting the limit member 6 with the rocket lower stage body 9; the limit member mounting bracket 8 is fixedly connected to the rocket lower stage body 9; the limit member 6 is fixedly mounted on the limit member mounting bracket 8.

[0033] Preferably, the lower end of the limiting member 6 includes a threaded structure; the lower end of the limiting member 6 is detachably fixedly connected to the limiting member mounting bracket 8 via the threaded structure.

[0034] As another embodiment of the present invention, one end of the separation cable 7 is tied and fixed on the limiting member 6 .

[0035] As another embodiment of the utility model, a through hole is provided on the limiting member 6, one end of the separation steel cable 7 is passed through the through hole, and the end portion of the separation steel cable 7 has an end stopper block larger than the through hole on the limiting member 6. The end stopper block can limit the connection end of the separation steel cable 7, and at the same time can ensure that the separation steel cable 7 slides in the prime through hole along its axial direction, which has better adaptability.

[0036] In addition, a through hole is provided on the limiting member 6, and one end of the separation cable 7 can also be passed through the through hole and tied and fixed to the limiting member 6, thereby improving the stability of the connection without adding an external shape or structure.

[0037] Preferably, a separation electric connector post-separation movement limiting device also includes a socket mounting bracket 4 for fixing the separation electric connector socket 3 to the rocket upper stage body 2; the socket mounting bracket 4 is arranged in the rocket upper stage body 2 and fixedly connected to the rocket upper stage body 2; the separation electric connector socket 3 is fixedly arranged on the socket mounting bracket 4.

[0038] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0041] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A separation movement limiting device for a separation electrical connector, characterized in that: include: Detach the electrical connector socket; The separation electrical connector socket is fixedly connected to the rocket upper stage body; Detaching the electrical connector plug; The disconnect electrical connector plug can be plugged and matched with the disconnect electrical connector socket; Limiting mechanism; the limiting mechanism includes a limiting member and a separation steel cable; the limiting member is fixedly connected to the lower stage body of the rocket; one end of the separation steel cable is fixedly connected or slidably connected to the limiting member; the other end of the separation steel cable is fixedly connected to the separation electrical connector plug; the limiting mechanism is configured so that when the separation electrical connector plug is disengaged from the separation electrical connector socket, the separation steel cable constrains the separation electrical connector plug to prevent the separation electrical connector from contacting the rocket engine nozzle.

2. The post-separation movement limiting device of the separable electrical connector according to claim 1, characterized in that: The limiting member is a rod-shaped structure or a long strip-shaped structure; a groove is provided at the upper end of the limiting member; one end of the separation steel cable is passed through the groove and can slide along the groove; the end portion of one end of the separation steel cable passed through the groove has an end limiting block larger than the minimum cross-sectional size of the groove.

3. The post-separation movement limiting device of the separable electrical connector according to claim 2, characterized in that: The limiting member is arranged along the axial direction of the rocket.

4. The post-separation movement limiting device of the separable electrical connector according to claim 2, characterized in that: It also includes a limit member mounting support for fixedly connecting the limit member and the rocket lower stage body; the limit member mounting support is fixedly connected to the rocket lower stage body; the limit member is fixedly mounted on the limit member mounting support.

5. The post-separation movement limiting device of the separable electrical connector according to claim 4, characterized in that: The lower end of the limiting member includes a threaded structure; the lower end of the limiting member is detachably fixedly connected to the limiting member mounting support through the threaded structure.

6. The post-separation movement limiting device of the separable electrical connector according to claim 1, characterized in that: One end of the separation steel cable is bound and fixed on the limiting member.

7. The post-separation movement limiting device of the separable electrical connector according to claim 1, characterized in that: The limiting member is provided with a through hole; one end of the separation steel cable is passed through the through hole, and the end portion of the separation steel cable has an end limit block which is larger than the through hole on the limiting member.

8. The post-separation movement limiting device of the separable electrical connector according to claim 1, characterized in that: It also includes a socket mounting bracket for fixedly connecting the separation electrical connector socket to the rocket upper stage body; the socket mounting bracket is arranged in the rocket upper stage body and fixedly connected to the rocket upper stage body; the separation electrical connector socket is fixedly mounted on the socket mounting bracket.

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