Rocket electrical connector plug pull-off protection device

Abstract

The utility model discloses an embodiment provides a rocket electric connector plug pull -out protection device, include: the guide assembly (1) of being able to connect on the peripheral shell (101), the guide assembly (1) is located the periphery of pull rod (103) and has the reserved space between pull rod (103), the guide assembly (1) has the through -going guide structure of pull rope (20) on it, when the rocket electric connector plug pull -out protection device is used, one end of pull rope (20) can pass through the through -going guide structure and connect to pull rod (103), and the pull rope (20) in the through -going guide structure and pull rod (103) to the pull rope (20) between guide assembly (1) coaxial, so that no matter the rear end of pull rope pulls from which direction, the pulling force of the front end to pull rod is in the axial direction of pull rod, can guarantee the direction along the central axis of pull rod 15 ° within pull -out electric connector plug.

Description

Technical Field

[0001] This utility model relates to the field of rocket launch, specifically to a rocket electrical connector plug pull-out protection device. Background Technology

[0002] Before ignition and liftoff, to provide power and control signals to the various onboard devices, a cable connects the rocket to the ground-based telemetry and control system. One end of this cable connects to the ground-based telemetry and control equipment, and the other end connects to a socket on the second stage of the rocket via an electrical connector. For a certain type of rocket, after the erector frame has been pre-collapsed, the electrical connector on the second stage needs to be disconnected from the socket at the moment of ignition and liftoff. This is achieved by the telemetry and control system automatically disconnecting the connector electrically, while a dedicated pulling mechanism on the launch pad uses a steel cable for mechanical disconnection as a backup, ensuring reliable disconnection of the connector.

[0003] In the process of realizing this utility model, the applicant discovered that the prior art has at least the following problems:

[0004] When the traction mechanism on the launch pad mechanically pulls the second-stage electrical connector plug of the rocket using a steel cable, the steel cable needs to be connected to a pull rod at the end of the connector plug. The pull rod is pulled backward with a force within 15° (the current technical standard) along its central axis, exceeding the connector plug's unlocking stroke, to pull it out. If the direction of the steel cable pull deviates, reliable pull-out will be impossible. Furthermore, after pull-out, the connector plug and its cable will fall under gravity. Combined with the pull of the steel cable, this will cause the cable to oscillate around a fixed point on the launch pad. This results in excessive force pulling the pull rod at the end of the connector plug, easily damaging it. Utility Model Content

[0005] This utility model provides a rocket electrical connector plug pull-out protection device, which can solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides a rocket electrical connector plug pull-out protection device. The rocket electrical connector plug pull-out protection device is used on the rocket electrical connector plug. The rocket electrical connector plug includes a peripheral housing, a tail housing sealed at the tail of the peripheral housing, and a pull rod connected to the tail housing.

[0007] The rocket electrical connector plug pull-out protection device includes: a guide assembly that can be connected to the peripheral housing, the guide assembly being disposed around the pull rod and having a reserved space between it and the pull rod, the guide assembly having a through guide structure for a pull rope, and when the rocket electrical connector plug pull-out protection device is used, one end of the pull rope can pass through the through guide structure and be connected to the pull rod, and the pull rope within the through guide structure is coaxial with the pull rope between the pull rod and the guide assembly.

[0008] The above technical solution has the following beneficial effects: After the pull rope passes through the through guide structure in the center of the guide assembly, no matter which direction the pull rope is pulled from, the pulling force of the pull rope on the pull rod on the rocket electrical connector plug at the front end is in the axial direction of the pull rod, which can ensure that the electrical connector plug is pulled out in a direction within 15° along the central axis of the pull rod. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a structural diagram of the rocket electrical connector plug pull-out protection device of this utility model in use;

[0011] Figure 2 This is an isometric view (excluding the limiting buckle) of the rocket electrical connector plug pull-out protection device of this utility model;

[0012] Figure 3 This is a structural diagram of the support frame of this utility model;

[0013] Figure 4 This is a structural diagram of the first or second clamping component of this utility model;

[0014] Figure 5 This is a schematic diagram of the structure of the pull rope after installation according to this utility model.

[0015] The reference numerals in the attached figures are as follows:

[0016] 1. Guide assembly; 3. First clamping component; 4. Second clamping component; 5. First fastener assembly; 6. Second fastener assembly; 7. Limiting buckle;

[0017] 10. Rocket electrical connector plug; 20. Pull rope; 30. Cable; 40. Socket;

[0018] 101. Peripheral housing; 102. Rear housing; 103. Pull rod;

[0019] 11. Support frame;

[0020] 12. Guide ring;

[0021] 111. First connecting part. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 As shown, in conjunction with an embodiment of the present invention, a rocket electrical connector plug pull-out protection device is provided. The rocket electrical connector plug pull-out protection device is used on the rocket electrical connector plug 10. The rocket electrical connector plug 10 includes a peripheral housing 101, a tail housing 102 sealed at the tail of the peripheral housing 101, and a pull rod 103 connected to the tail housing 102.

[0024] The rocket electrical connector plug pull-out protection device includes: a guide component 1 that can be connected to the peripheral housing 101. The guide component 1 is located on the periphery of the pull rod 103 and has a reserved space between it and the pull rod 103. The guide component 1 has a through guide structure for a pull rope 20. When the rocket electrical connector plug pull-out protection device is used, one end of the pull rope 20 can pass through the through guide structure and be connected to the pull rod 103. The pull rope 20 located in the through guide structure is coaxial with the pull rope 20 between the pull rod 103 and the guide component 1.

[0025] After the pull rope 20 passes through the through guide structure in the center of the guide assembly 1, no matter which direction the pull rope 20 is pulled from, the pulling force of the pull rope 20 on the pull rod 103 on the rocket electrical connector plug 10 at the front end is in the axial direction of the pull rod 103, which can ensure that the electrical connector plug is pulled out in a direction within 15° along the central axis of the pull rod 103.

[0026] Preferably, the pull rope 20 can be a steel wire rope.

[0027] Preferably, such as Figure 1 , Figure 2 and Figure 3As shown, the guide assembly 1 includes a support frame 11 detachably connected to the peripheral housing 101. The support frame 11 is located around the pull rod 103 and has a reserved space between it and the pull rod 103. The through guide structure includes a guide ring 12 located on the support frame 11 and coaxial with the pull rod 103.

[0028] The support frame 11 has a hollow center, which facilitates the insertion and removal of the rocket electrical connector plug 10, while also providing space for the limit buckle 7.

[0029] A guide ring 12 is provided at the center of the support frame 11. After the pull rope 20 passes through the guide ring 12, regardless of the direction from which the rear end of the pull rope 20 is pulled, the pulling force of the pull rope 20 on the pull rod 103 on the rocket electrical connector plug 10 is always in the axial direction of the pull rod 103. In addition, the diameter of the through-hole in the guide ring 12 is only 3mm, and the diameter of the pull rope 20 is 2mm. During the process of pulling off the rocket electrical connector plug 10, when the pull rope 20 is pulled backward a certain distance, if it continues to be pulled backward, the guide ring 12 on the support frame 11 will stop the limiting buckle 7, and then the pulling force of the pull rope 20 on the pull rod 103 on the rocket electrical connector plug 10 will be converted into a pulling force on the support frame 11. The support frame 11 is fixed to the peripheral shell 101 of the rocket electrical connector plug 10 through the first clamp 3 and the second clamp 4. Therefore, the pulling object of the pull rope 20 is converted to the peripheral shell 101 of the rocket electrical connector plug 10. That is, the guide ring 12 can ensure the direction of the pulling rope 20 when it is pulled.

[0030] Preferably, such as Figure 1 , Figure 2 and Figure 3 As shown, the support frame 11 is a U-shaped groove. The open end of the U-shaped groove is fastened to the periphery of the tail housing 102 and bypasses the cable 30 included in the rocket electrical connector plug 10. The two vertical sides of the U-shaped groove can be detachably connected to the peripheral housing 101.

[0031] Preferably, such as Figure 2 and Figure 3 As shown, the rocket electrical connector plug pull-out protection device further includes a first retaining member 3 and a second retaining member 4 arranged sequentially along the circumference of the peripheral housing 101 and capable of being locked onto the peripheral housing 101. The first retaining member 3 and the second retaining member 4 are connected by a first fastener assembly 5.

[0032] The mounting holes at both ends of the first clamping member 3 and the second clamping member 4 are through holes. Their main function is to facilitate the connection between the support frame 11 and the housing of the rocket electrical connector plug 10. The first clamping member 3 and the second clamping member 4 are fastened to the housing (peripheral outer shell 101) of the rocket electrical connector plug 10 by two sets of first fastener assemblies 5. By adjusting the tightening length of the screws, the clamping force between the first clamping member 3, the second clamping member 4 and the peripheral outer shell 101 can be adjusted, ensuring that the first clamping member 3 and the second clamping member 4 and the peripheral outer shell 101 can be firmly connected.

[0033] The two vertical sides of the U-shaped groove each have a corresponding first connecting part 111, and the two first connecting parts 111 are respectively connected to the first clamping member 3 and the second clamping member 4.

[0034] The first clamping component 3 and the second clamping component 4 have the same structure and are arranged symmetrically.

[0035] Preferably, such as Figure 2 , Figure 3 and Figure 4 As shown, the two first connecting parts 111 are respectively connected to the first clamping member 3 and the second clamping member 4 via the second fastener assembly 6.

[0036] The support frame 11 is fixed to the first retaining member 3 and the second retaining member 4 by four sets of second fastener assemblies 6.

[0037] Preferably, such as Figure 2 As shown, the guide ring 12 is located at the bottom edge of the U-shaped groove.

[0038] Preferably, such as Figure 1 and Figure 5 As shown, the rocket electrical connector plug pull-out protection device also includes a limiting buckle 7. The limiting buckle 7 means that when the rocket electrical connector plug pull-out protection device is used, one end of the pull rope 20 passes through the through guide structure, then through the through hole of the pull rod 103 and back through a preset length. The limiting buckle 7 clamps and fixes the pull rope 20 in the reserved space and prevents it from being pulled out of the through guide structure. The other end of the pull rope 20 is fixed to the pulling mechanism.

[0039] The travel of the limiting buckle 7 within the reserved space is greater than the pull-out unlocking travel of the rocket electrical connector plug 10 within the socket at the second stage of the rocket.

[0040] One end of the pull rope 20 passes through the through hole on the pull rod 103 at the tail of the rocket electrical connector plug 10, then backs through 30-50mm, and is clamped and fixed using the limit buckle 7 to ensure that the pull rope 20 is securely locked. The other end of the pull rope 20 passes through the guide ring 12 on the support frame 11 and is fixed to the pulling mechanism on the erecting frame.

[0041] Preferably, a flexible plate is provided between the first retaining member 3 and the second retaining member 4 and the peripheral outer shell 101.

[0042] In summary, a rocket electrical connector plug pull-out protection device is provided to protect the mechanical separation of the second-stage electrical connector plug when it pulls out after rocket ignition and liftoff. The method of using this rocket electrical connector plug pull-out protection device when connecting the second-stage cables during rocket hoisting onto the erector frame is as follows:

[0043] 1. Using two sets of first fastener assemblies 5, install the first clamping member 3 and the second clamping member 4 onto the peripheral housing 101 of the rocket electrical connector plug 10, and adjust the positions of the first clamping member 3 and the second clamping member 4 appropriately to prevent them from interfering with the cable 30. Tighten the second fastener assembly 6 and adjust the clamping force of the first clamping member 3 and the second clamping member 4 to ensure that the first clamping member 3 and the second clamping member 4 are firmly connected to the peripheral housing 101 of the rocket electrical connector plug 10. If a secure connection is still not possible after the screws are tightened, a rubber plate or other soft material can be added between the first clamping member 3 and the second clamping member 4 and the peripheral housing 101 of the rocket electrical connector plug 10.

[0044] 2. Pass one end of the pull rope 20 through the through hole on the pull rod 103 of the tail outer body 102 of the rocket electrical connector plug 10, and then pull it back 30-50mm. Use the limit buckle 7 to clamp and fix the pull rope 20. Adjust the installation position of the limit buckle 7 appropriately so that the stroke of the limit buckle 7 is slightly greater than the unlocking stroke of the pull rod 103.

[0045] 3. Pass the other end of the pull rope 20 through the guide ring 12 on the support frame 11;

[0046] 4. Secure the first clamping member 3 and the second clamping member 4 of the support frame 11 using four sets of second fastener assemblies 6;

[0047] 5. Install the rocket electrical connector plug 10 into the socket 40 at the second stage of the rocket, and fix the other end of the pull rope 20 to the pull mechanism on the erector frame;

[0048] 6. After the rocket takes off and ignites, the pulling mechanism on the erector frame is controlled to pull the pulling rope 20 backward. After the pulling rope 20 is tightened, it pulls the lever 103 on the tail outer body 102 of the rocket electrical connector plug 10, so that the rocket electrical connector plug 10 is pulled out. After exceeding its unlocking stroke, the rocket electrical connector plug 10 will be separated from the socket 40.

[0049] 7. Under the weight of the cable 30 and the rocket electrical connector plug 10, the rocket electrical connector plug 10 will fall downward after separating from the socket 40. At this time, the limit buckle 7 on the pull rope 20 will be blocked by the support frame 11 and will not continue to be pulled backward by the pull rope 20. The pull rod 103 on the rocket electrical connector plug 10 will no longer be under force, and the support frame 11 will bear the downward force of the cable 30 and the rocket electrical connector socket 40.

[0050] 8. The traction mechanism on the erecting frame continues to move backward, pulling the traction rope 20. The traction rope 20 pulls the support frame 11, thereby lifting the cable 30 and the rocket electrical connector socket 40, until the traction mechanism stops moving.

[0051] The beneficial technical effects achieved by this embodiment of the utility model are as follows:

[0052] 1. The rocket electrical connector plug pull-out protection device can be installed on the housing of the electrical connector plug. It can guide the pulling direction of the wire rope and ensure that it is within 15° along the central axis of the pull rod, thus improving the reliability of mechanical pull-out.

[0053] 2. Regardless of whether the rocket electrical connector plug is actively electrically separated or passively mechanically pulled off, it can protect the electrical connector plug after separation; that is, after the electrical connector plug is pulled off, the limiting buckle on the pulling rope acts on the housing of the rocket electrical connector plug through this device, so that the pulling force of the pulling rope no longer acts on the pull rod at the end of the electrical connector plug, thus preventing damage to the electrical connector plug and protecting the electrical connector plug.

[0054] 3. The structure is simple, requiring no control or additional power mechanism, resulting in low construction costs.

[0055] 4. Simple installation, does not affect the original structure and use of the rocket electrical connector; can adapt to the pre- and rapid backward tilting processes of the erector frame during rocket launch, applicable to different working conditions, reliable function, and provides assurance for rocket launch.

[0056] It should be understood that in the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be interpreted as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the present invention is in a state with fewer features than all of the disclosed individual embodiments. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, wherein each claim stands alone as a preferred embodiment of the present invention.

[0057] The disclosed embodiments have been described above to enable any person skilled in the art to implement or use this invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments given herein, but is consistent with the widest scope of the principles and novel features disclosed in this application.

[0058] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

[0059] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A rocket electrical connector plug pull-out protection device, the rocket electrical connector plug pull-out protection device is used on a rocket electrical connector plug (10), the rocket electrical connector plug (10) includes a peripheral housing (101), a tail housing (102) sealed at the tail of the peripheral housing (101) and a pull rod (103) connected to the tail housing (102). Its features are, The rocket electrical connector plug pull-out protection device includes: a guide assembly (1) connected to the peripheral housing (101), the guide assembly (1) being located on the periphery of the pull rod (103) and having a reserved space between it and the pull rod (103), the guide assembly (1) having a through guide structure for a pull rope (20), when the rocket electrical connector plug pull-out protection device is used, one end of the pull rope (20) can pass through the through guide structure and be connected to the pull rod (103), and the pull rope (20) within the through guide structure is coaxial with the pull rope (20) between the pull rod (103) and the guide assembly (1).

2. The rocket electrical connector plug pull-out protection device according to claim 1, characterized in that, The guide assembly (1) includes a support frame (11) detachably connected to the peripheral housing (101). The support frame (11) is located on the periphery of the pull rod (103) and has a reserved space between it and the pull rod (103). The through guide structure includes a guide ring (12) located on the support frame (11) and coaxial with the pull rod (103).

3. The rocket electrical connector plug pull-out protection device according to claim 2, characterized in that, The support frame (11) is a U-shaped groove. The open end of the U-shaped groove is fastened to the periphery of the tail shell (102) and bypasses the cable (30) included in the rocket electrical connector plug (10). The two vertical sides of the U-shaped groove are detachably connected to the peripheral shell (101).

4. The rocket electrical connector plug pull-out protection device according to claim 3, characterized in that, It also includes a first retaining member (3) and a second retaining member (4) arranged sequentially along the circumference of the peripheral housing (101) and capable of being fastened to the peripheral housing (101), wherein the first retaining member (3) and the second retaining member (4) are connected by a first fastener assembly (5); The two vertical sides of the U-shaped groove each have a corresponding first connecting part (111), and the two first connecting parts (111) are respectively connected to the first clamping member (3) and the second clamping member (4).

5. The rocket electrical connector plug pull-out protection device according to claim 4, characterized in that, The two first connecting parts (111) are respectively connected to the first clamping part (3) and the second clamping part (4) by the second fastener assembly (6).

6. The rocket electrical connector plug pull-out protection device according to claim 3, characterized in that, The guide ring (12) is located at the bottom edge of the U-shaped groove.

7. The rocket electrical connector plug pull-out protection device according to claim 1, characterized in that, It also includes a limiting buckle (7), which means that when the rocket electrical connector plug pull-out protection device is used, one end of the pull rope (20) passes through the through guide structure, then through the through hole of the pull rod (103) and back through a preset length, and the limiting buckle (7) clamps and fixes the pull rope (20) in the reserved space, and the other end of the pull rope (20) is fixed on the pulling mechanism; The travel of the limiting buckle (7) within the reserved space is greater than the pull-out unlocking travel of the rocket electrical connector plug (10) within the socket (40) at the second stage of the rocket.

8. The rocket electrical connector plug pull-out protection device according to claim 4, characterized in that, A flexible plate is provided between the first retaining member (3) and the second retaining member (4) and the peripheral outer shell (101).

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