Separating and unlocking mechanism

Abstract

The invention discloses a separating and unlocking mechanism. The separating and unlocking mechanism comprises a base; the separating and pushing assembly comprises a fixed shell and a push rod, the fixed shell is detachably arranged on the base, and the push rod penetrates through the fixed shell and is slidably arranged on the fixed shell; the locking piece is detachably connected with the push rod and is positioned outside the fixed shell; the connection unlocking assembly comprises a guide rod and a clamping jaw structure, the guide rod is connected with the end, deviating from the locking piece, of the push rod, the separation unlocking mechanism adopts a connecting rod linkage assembly to control the locking piece to unlock the push rod, single-point faults are avoided, and reliability is improved; the separation pushing assembly and the connection unlocking assembly form an independent unlocking module, the structure is compact, the space is saved, multi-stage unlocking control is achieved, the unlocking and locking stability is improved, the operation convenience is improved, unlocking lagging is avoided, and the requirement for unlocking force is reduced.

Description

Technical Field

[0001] This application relates to the field of spacecraft technology, and in particular to a separation and unlocking mechanism. Background Technology

[0002] Currently, satellites are generally mounted on adapters in rocket systems, and connection and separation between the satellite and rocket are achieved through satellite-rocket connection / separation unlocking devices mounted on the adapters. Most domestic satellite launch missions typically use explosive bolts, straps, or mechanical connection / unlocking methods for satellite-rocket connection and separation. Explosive bolts require multiple connection and unlocking points with the satellite, making them a pyrotechnic unlocking method. This method has drawbacks such as numerous connection interfaces, a single-point-of-failure unlocking mechanism, inability to perform functional testing on the ground, and significant impact on the satellite during unlocking. Strap connection / unlocking structures require larger dimensions, imposing greater size restrictions on the satellite's connection structure. For medium and small satellites, the cost of using strap connection / unlocking is higher, and the overall weight of straps is relatively greater than mechanical connection / unlocking structures. Due to numerous limitations such as fairing envelope space, satellite structural dimensions, launch weight, load impact, cost, and repeatability, novel low-impact, reproducible connection / unlocking mechanisms are becoming the future trend for satellite-rocket connection / unlocking.

[0003] Currently, competition in the commercial space industry is becoming increasingly fierce, and continuously reducing launch and delivery costs has become an inevitable trend in the development of commercial spaceflight. Low cost and short cycle time have become essential factors to consider in the design of satellite-rocket separation structures. As satellite measurement units and instruments become more sophisticated, the impact load requirements for satellite-rocket separation are decreasing. Therefore, it is urgent to develop a new type of connection and unlocking mechanism that is low-cost, low-impact, lightweight, reliable, and repeatable, suitable for medium and small satellite launch missions. In view of this, this project was developed through in-depth research into the above issues. Summary of the Invention

[0004] This application provides a separation unlocking mechanism, including: Base; The detachable jacking assembly includes a fixed housing and a push rod. The fixed housing is detachably disposed on the base, and the push rod passes through the fixed housing and is slidably disposed on the fixed housing. A locking element is detachably connected to the push rod and located outside the fixed housing; The connection unlocking component includes a guide rod and a claw structure. The guide rod is connected to the end of the push rod opposite to the locking member. The claw structure is rotatably connected to the end of the guide rod opposite to the push rod. The claw structure can switch between a first position and a second position. The separation unit connects to the rocket. When the locking member is connected to the push rod, the claw structure is located in the first position and is connected to the separation seat. When the locking member is separated from the push rod, the claw structure is located in the second position and the locking member is separated from the push rod.

[0005] Preferably, the separation pushing assembly further includes: A reset element is disposed within the fixed housing and sleeved on the push rod.

[0006] Preferably, the push rod is provided with a limiting part, one end of the reset member abuts against the limiting part, and the other end abuts against the end of the fixed housing away from the guide rod.

[0007] Preferably, the claw structure includes two claws arranged opposite each other.

[0008] Preferably, the separation unlocking mechanism further includes: A linkage assembly, connected to the locking member, is used to pull the locking member apart from the push rod; Preferably, the linkage assembly includes a linkage and a driving component. The linkage is movably mounted on the base and is limited by a micro switch. The driving component is connected to the linkage and the base.

[0009] Preferably, there are multiple separating push assemblies, multiple locking components, and multiple linkage components with multiple connecting rods that correspond one-to-one with the multiple separating push assemblies. Each connecting rod is connected to an unlocking component, which is connected to the corresponding locking component.

[0010] Preferably, there is an L-shaped rotating member between two adjacent connecting rods.

[0011] Preferably, the separation unlocking mechanism further includes: Install connection components for detachably connecting the base to the fixed housing; The installation connection assembly includes a fixed base fixedly mounted on the base, a guide groove formed on the fixed base, and a guide plate fixedly mounted on the fixed housing, wherein the guide plate is connected to the guide groove via a sleeve.

[0012] Preferably, the locking member has a tenon at one end of the push rod, the locking member is connected to the unlocking member at the other end away from the push rod, the push rod has a slot at the end away from the claw structure, the slot has a groove at the inner end, and the tenon is rotatably locked to the groove.

[0013] In a first aspect of the embodiments of this application, the linkage drive assembly, the connection unlocking mechanism, and the separation pushing mechanism all adopt a modular design. By assembling the connection assembly with the base, satellite connection, low-impact unlocking, and rapid and safe separation can be achieved. In a second aspect of the embodiments of this application, the linkage assembly uses a micro switch to unlock, and the unlocking impact is less than 1000g, which can meet the low-impact launch mission. The unlocking pin of the linkage assembly uses a soft connection to lock the separation push mechanism, and the connection and reset operation is simple. In a third aspect of the embodiments of this application, the connection unlocking mechanism and the separation pushing mechanism together constitute an elastically propelled unlocking module with its own unlocking power. At the same time, the connection unlocking mechanism is designed with a force-saving dead point structure, which can achieve connection and unlocking with only a small force, reducing the load requirements on components such as unlocking pins and micro switches, increasing the safety margin of connection and unlocking, and making connection and unlocking more reliable. In a fourth aspect of the embodiments of this application, the rotating separation component and the unlocking pin are connected by a steel rope. The steel rope is pulled by the axial movement of the unlocking pin. Through the design of the rotary rod and the irregular pin, the unlocking rod and the separation pushing mechanism are more firmly limited, which adds another layer of security to the unlocking of the separation pushing mechanism. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present invention; Figure 2 This is a top view of the linkage assembly of Embodiment 1 of the present invention; Figure 3 This is a schematic cross-sectional view of the detachable jacking assembly according to Embodiment 1 of the present invention; Figure 4 This is a cross-sectional view of the connection unlocking component according to Embodiment 1 of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of Embodiment 2 of the present invention; Figure 6 This is a three-dimensional structural schematic diagram of Embodiment 3 of the present invention; Figure 7 This is a schematic diagram of the first three-dimensional cross-sectional structure of Embodiment 3 of the present invention; Figure 8 This is a schematic diagram of the second three-dimensional cross-sectional structure of Embodiment 3 of the present invention; In the diagram: 1. Base; 2. Separation and pushing assembly; 3. Connection and unlocking assembly; 4. Linkage assembly; 5. Installation and connection assembly; 21. Fixed housing; 22. Push rod; 23. Locking component; 24. Reset component; 25. Limiting part; 31. Guide rod; 32. Claw structure; 33. Separation seat; 41. Linkage rod; 42. Drive component; 43. Micro switch; 44. Unlocking component; 45. L-shaped rotating component; 51. Fixed seat; 52. Guide plate; 53. Insert rod; 54. Nut; 231. Tenon; 232. Slot; 233. Steel rope; 234. Boss; 235. Elastic locking pin; 236. Locking groove; 237. Elastic ejector; 321. First claw part; 322. Second claw part; 323. First pin; 324. Second pin; 325. Rotating pin. Detailed Implementation

[0015] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0016] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0017] Currently, spacecraft primarily rely on rocket thrusters for propulsion. After reaching their designated position, the connection between the thruster and the satellite needs to be separated. Commonly used satellite-rocket separation devices typically employ explosive bolts, straps, or mechanical connection unlocking methods. Explosive bolts require multiple connection and unlocking points with the satellite, resulting in numerous connection interfaces, a single-point-of-failure unlocking method, the inability to perform functional testing on the ground, and significant impact on the satellite during unlocking. Strap-connected unlocking structures require substantial space, making them costly for medium and small satellites, and they are also significantly heavier than mechanical connection unlocking structures. Therefore, satellite-rocket separation devices using a linkage unlocking method have emerged, enabling multi-point unlocking. However, these devices often have few dead points, and the linkage mechanism is directly connected to the unlocking device, requiring considerable force to complete the unlocking process.

[0018] According to the instruction manual Figure 1-6 As can be seen, in order to solve the above problems, this application discloses a separation and unlocking mechanism. The entire separation and unlocking mechanism takes the base 1 as the main body for installation. The base 1 provides support and serves as the mounting body. In the application process, the base 1 is connected to the satellite. Based on the base 1, a linkage component 41 is set as the control switch for unlocking. An independent unlocking module consisting of a separation push component 2 and a connection unlocking component 3 is set on one side of the base 1. The separation push component 2 is connected to the base 1 as a fixed base, and the connection unlocking component 3 is connected to the thruster and forms a locking dead point. The separation push component 2 controls the dead point separation of the connection unlocking component 3 to complete the separation of the star and rocket. Specifically, refer to the instruction manual. Figure 1-3 It is known that the separation push assembly 2 includes a fixed housing 21 and a push rod 22. The fixed housing 21 is detachably mounted on the base 1. The fixed housing 21 serves as the installation space for the separation push assembly 2 and is fixedly connected to the base 1 during operation. The push rod 22 passes through the fixed housing 21 and is slidably mounted on the fixed housing 21. The push rod 22 and the fixed housing 21 form a triggering structure similar to a gun bolt. The push rod 22 can move linearly on the fixed housing 21 with the locking member 23 as the unlocking switch. Furthermore, the aforementioned separation push assembly 2 also includes: a reset member 24, which is disposed inside the fixed housing 21 and sleeved on the push rod 22. The reset member 24 is preferably a reset spring. The push rod 22 is provided with a limiting part 25. One end of the reset member 24 abuts against the limiting part 25, and the other end abuts against the end of the fixed housing 21 away from the guide rod 31. Under the action of the limiting part 25, the push rod 22 squeezes the reset member 24 to store energy. When unlocking, the reset member 24 provides a pushing force to make the push rod 22 move.

[0019] The unlocking switch of the separating push assembly 2 is provided with a locking member 23, which can be detachably connected to the push rod 22 and is located outside the fixed housing 21. The locking member 23 is connected to the linkage assembly 4 of the connecting rod 41. The locking member 23 can be controlled to disengage from the push rod 22 through the linkage assembly 4 of the connecting rod 41, thereby achieving the purpose of unlocking the push rod 22. According to the instruction manual Figure 1-4 As can be seen, the above-mentioned connection unlocking component 3 includes a guide rod 31 and a claw structure 32. The guide rod 31 is connected to the end of the push rod 22 away from the locking member 23. The claw structure 32 is rotatably connected to the end of the guide rod 31 away from the push rod 22. The claw structure 32 can switch between a first position and a second position. Based on the movement of the push rod 22, the push rod 22 pushes the guide rod 31 to move, so that the guide rod 31 drives the claw structure 32 to move, so that the claw structure 32 completes the switching from the first position to the second position, realizing the separation action. According to the instruction manual Figure 1 It can be seen that the claw structure 32 cooperates with the separation seat 33 and connects with the rocket's thruster to form a dead point. Specifically, when the locking member 23 is connected to the push rod 22, the claw structure 32 is in the first position and the claw structure 32 is connected to the separation seat 33. When the locking member 23 is separated from the push rod 22, the claw structure 32 is in the second position and the locking member 23 is separated from the push rod 22.

[0020] The claw structure 32 includes two opposing claws, each consisting of a first claw part 321 and a second claw part 322. The first claw part 321 and the second claw part 322 are connected by a first pin 323, and the second claw part 322 is movably connected to the guide rod 31 by a second pin 324. A rotating pin 325 is fixedly mounted on the first claw part 321. When the push rod 22 is not unlocked, the claw structure 32 is in the first position, and the end of the first claw part 321 abuts against the inner arc area of ​​the separation seat 33, thus locking the connection between the star and the rocket. When the push rod 22 is unlocked, the claw structure 32 is in the second position, and the push rod 22 pushes the second claw part 322 to move. The geothermal claw part drives the first claw part 321 to rotate around the rotating pin 325, thereby causing the end of the first claw part 321 to disengage from the inner arc area of ​​the separation seat 33, thus disengaging the separation seat 33 and completing the separation of the star and the rocket.

[0021] According to the instruction manual Figure 1-6 It is known that the separation and unlocking mechanism also includes: a linkage assembly 4 of a connecting rod 41, which is connected to the locking member 23 and used to pull the locking member 23. A slot is provided on the top of the push rod 22. The locking member 23 and the slot are radially limited by inserting into each other. Part of the locking member 23 abuts against the top of the fixed housing 21, so that the locking member 23 locks the push rod 22 and will not come out of the slot when it is not unlocked. Specifically, the linkage assembly 4 of the aforementioned linkage 41 includes a linkage 41 and a drive member 42. The linkage 41 is movably mounted on the base 1. The drive member 42 is connected to the linkage 41 and the base 1. The drive member 42 is an elastic rod. When the linkage 41 is locked, it is limited by a micro switch 43 and the drive member 42 is compressed and stores energy. When unlocking is required, the micro switch 43 is activated to disengage the linkage 41 from the lock and the drive member 42 is released. At this time, the linkage 41 moves. In Embodiment 1 of this application, during the specific implementation process, there are multiple separating push-up components 2 and multiple locking components 23. The linkage component 4 of the connecting rod 41 is provided with multiple connecting rods 41, which correspond one-to-one with multiple separating push-up components 2. The connecting rod 41 is connected to an unlocking component 44, and the unlocking component 44 is connected to the corresponding locking component 23. According to the instruction manual Figure 1-5 As can be seen, taking four connecting rods 41 as an example, there is an L-shaped rotating part 45 between two adjacent connecting rods 41. The four connecting rods 41 are movably connected through the four rotating parts to form a rectangular movable frame. A micro switch 43 is set on one of the connecting rods 41. After the micro switch 43 is activated, due to the release of the driving part 42, the four connecting rods 41 rotate around the L-shaped corners of the four rotating parts as the axis, thereby causing the movable frame formed by the connecting rods 41 to move as a whole. The unlocking part 44 on the connecting rod 41 is a pin. The pin can be inserted into the base 1. During the process of the connecting rod 41 driving the pin to move, it pulls the connected locking part 23 to move and disengage from the slot, thus completing the unlocking of the push rod 22.

[0022] In Embodiment 2 of this application: the separation unlocking mechanism further includes: an installation connection component 5 for detachably connecting the base 1 and the fixed housing 21; Specifically, the aforementioned installation and connection assembly 5 includes a fixed base 51 fixedly mounted on the base 1, a guide groove formed on the fixed base 51, and a guide plate 52 fixedly mounted on the fixed housing 21. The guide plate 52 is connected to the guide groove via a sleeve. The fixed base 51 and the base 1 are connected by welding or are integrally formed. The guide groove is preferably a dovetail-shaped guide groove. The guide plate 52 is inserted from one side of the opening of the guide groove. A pair of insert rods 53 are provided in the guide groove. A pair of sleeve holes are correspondingly provided on the guide plate 52. The pair of insert rods 53 and the guide groove realize the guiding and limiting of the guide plate 52. A pair of nuts 54 are threaded to the top of the pair of insert rods 53 to lock the guide plate 52. The guide plate 52 is welded to the fixed housing 21. The independent unlocking module can be quickly disassembled and assembled by disassembling and assembling the guide plate 52, which is convenient for maintenance and replacement.

[0023] In Embodiment 3 of this application: In order to further limit the locking member 23 and increase the stability of unlocking and locking, a tenon 231 is provided at one end of the locking member 23 that is inserted into the push rod 22, and the end of the locking member 23 that is away from the push rod 22 is connected to the unlocking member 44. A slot is provided at the end of the push rod 22 that is away from the claw structure 32, and a groove 232 is provided inside the slot. The tenon 231 is rotatably locked with the groove 232. In the specific implementation process, the connection between the locking component 23 and the unlocking component 44 is preferably made of steel cable 233. The steel cable 233 is in a tensioned state after the locking component 23 is inserted into place. The latch 231 has a notched arc structure and is integrally formed with the unlocking component 44. The notched arc part of the latch 231 corresponds to the notched arc part of the slot. After the locking component 23 is inserted into the slot 232, it needs to be rotated to lock the latch 231 and the slot 232. A notched arc-shaped boss 234 is provided at the inner end of the slot 232. The boss 234 can limit the latch 231 and prevent the latch 231 from moving out of place. An elastic locking pin is provided in the slot 232. 235. A locking groove 236 is provided in the middle of the latch 231. When the latch 231 is rotated to the position, the elastic locking pin 235 is engaged in the locking groove 236 and makes a crisp sound as a prompt. When unlocking, the unlocking part 44 pulls the steel rope 233 to move, thereby causing the locking part 23 to rotate first, so that the locking groove 236 is disengaged from the elastic locking pin 235. After rotating to the position, due to the limitation of the boss 234, the latch 231 part of the locking part 23 corresponds to the notched part of the slot. An elastic pusher 237 is provided in the slot. Under the pushing action of the elastic pusher 237, the locking part 23 is accelerated to disengage from the slot.

[0024] Workflow: The separation and unlocking mechanism is mounted on the base 1 and connected to the satellite. In the locked state, the fixed housing 21 of the separation push assembly 2 is detachably mounted on the base 1, and the push rod 22 passes through it. A return spring is sleeved on the push rod 22, with its two ends respectively abutting the limit part 25 of the push rod 22 and the end of the fixed housing 21. The push rod 22 is locked on the fixed housing 21 by the locking member 23. The locking member 23 is controlled by the linkage assembly 4 of the connecting rod 41. The guide rod 31 connecting the unlocking assembly 3 is connected to the push rod 22 away from the end of the locking member 23. The pawl structure 32 is rotatably connected to the guide rod 31 and cooperates with the separation seat 33 to lock the thruster. At this time, the pawl structure 32 is in the first position, and the end of the first pawl part 321 abuts against the inner arc area of ​​the separation seat 33. When the satellite needs to be separated from the rocket, the driving member 42 of the linkage assembly 4 of the connecting rod 41 is preferably a spring. Due to the action of the micro switch 43, the connecting rod 41 moves. Taking four connecting rods 41 as an example, adjacent connecting rods The frame consists of an L-shaped rotating part 45, forming a rectangular movable frame. When the micro switch 43 on a connecting rod 41 is activated, the frame moves as a whole. The pin on the connecting rod 41 pulls the locking part 23, causing the locking part 23 to rotate first. The latch 231 and the slot 232 are unlocked. The elastic pusher 237 accelerates the locking part 23 to disengage from the top slot of the push rod 22, releasing the lock on the push rod 22. The return spring releases its stored energy, pushing the push rod 22 to move linearly. The push rod 22 drives the guide rod 31 to move. The guide rod 31 drives the claw structure 32 to switch from the first position to the second position. The first claw part 321 rotates around the rotating pin 325, and its end disengages from the inner arc area of ​​the separation seat 33. The separation seat 33 disengages, completing the separation of the star and rocket. If it is necessary to repair or replace the independent unlocking module, the guide plate 52 on the fixed housing 21 can be pulled out from the dovetail guide groove of the fixed seat 51 of the base 1 by installing the connecting component 5. A pair of plug rods 53 and nuts 54 can be removed to achieve disassembly and assembly.

[0025] This separation and unlocking mechanism has many advantages. It uses a linkage 41 to control the locking component 23 and the unlocking push rod 22, avoiding single-point failure and improving reliability. The separation push component 2 and the connecting unlocking component 3 form an independent unlocking module with a compact structure, saving space and reducing costs. The claw structure 32 is cleverly designed to effectively form a dead point, achieving stable locking and separation. The installation and connection component 5 facilitates the disassembly and assembly of the independent unlocking module, making maintenance and replacement convenient. Multi-level unlocking control increases the stability of unlocking and locking, improves operational convenience, avoids unlocking jamming, and reduces the need for unlocking force.

[0026] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0027] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0028] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0029] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A separation unlocking mechanism, characterized in that, include: Base; The detachable jacking assembly includes a fixed housing and a push rod. The fixed housing is detachably disposed on the base, and the push rod passes through the fixed housing and is slidably disposed on the fixed housing. A locking element is detachably connected to the push rod and located outside the fixed housing; The connection unlocking component includes a guide rod and a claw structure. The guide rod is connected to the end of the push rod opposite to the locking member. The claw structure is rotatably connected to the end of the guide rod opposite to the push rod. The claw structure can switch between a first position and a second position. The separation unit connects to the rocket. When the locking member is connected to the push rod, the claw structure is located in the first position and is connected to the separation seat. When the locking member is separated from the push rod, the claw structure is located in the second position and the locking member is separated from the push rod.

2. The separation and unlocking mechanism according to claim 1, characterized in that, The separation pusher assembly also includes: A reset element is disposed within the fixed housing and sleeved on the push rod.

3. The separation and unlocking mechanism according to claim 2, characterized in that, The push rod is provided with a limiting part, one end of the reset member abuts against the limiting part, and the other end abuts against the end of the fixed housing away from the guide rod.

4. The separation and unlocking mechanism according to claim 1, characterized in that, The jaw structure includes two jaws arranged opposite each other.

5. The separation and unlocking mechanism according to claim 1, characterized in that, The separation unlocking mechanism also includes: A linkage assembly is connected to the locking member and is used to pull the locking member apart from the push rod.

6. The separation and unlocking mechanism according to claim 5, characterized in that, The linkage assembly includes a connecting rod and a driving component. The connecting rod is movably mounted on the base and is limited by a micro switch. The driving component is connected to the connecting rod and the base.

7. The separation and unlocking mechanism according to claim 6, characterized in that, There are multiple separating push assemblies, multiple locking components, and multiple linkage components with multiple connecting rods that correspond one-to-one with the multiple separating push assemblies. Each connecting rod is connected to an unlocking component, which is connected to the corresponding locking component.

8. The separation and unlocking mechanism according to claim 7, characterized in that, There is an L-shaped rotating component between two adjacent connecting rods.

9. The separation and unlocking mechanism according to claim 1, characterized in that, The separation unlocking mechanism also includes: Install connection components for detachably connecting the base to the fixed housing; The installation connection assembly includes a fixed base fixedly mounted on the base, a guide groove formed on the fixed base, and a guide plate fixedly mounted on the fixed housing, wherein the guide plate is connected to the guide groove via a sleeve.

10. A separation and unlocking mechanism according to claim 7, characterized in that, The locking member is embedded in one end of the push rod and has a tenon. The locking member is connected to the unlocking member at the end away from the push rod. The end of the push rod away from the claw structure has a slot. The inner end of the slot has a groove. The tenon is rotatably locked to the groove.

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