Satellite-rocket separation unlocking device

Abstract

The utility model relates to the technical field of aerospace, in particular to a satellite and rocket separation unlocking device which comprises a main body base, a locking assembly, a connecting assembly and a driving assembly, the main body base is used for being fixed to a carrying tool, and the connecting assembly is used for being connected with a load; the locking assembly and the driving assembly are both installed on the main body base, the driving assembly is used for making contact with the load, and the locking assembly is used for locking the connecting assembly so that the driving assembly can make contact with the connecting assembly. The locking assembly is used for unlocking the connecting assembly so that the driving assembly can drive the connecting assembly to be separated from the locking assembly. The utility model aims to provide a satellite and rocket separation unlocking device aiming at at least one technical problem related in the prior art.

Description

Technical Field

[0001] The present application relates to the field of aerospace technology, and in particular to a satellite-rocket separation and unlocking device. Background Art

[0002] The connection and release of payloads to launch vehicles are widespread, such as between stages of multi-stage rockets, between satellites and launch vehicles, between satellites and spacecraft, between solar panels and spacecraft, and between deployable antennas and spacecraft. Currently, methods used include pyrotechnic devices for connection and release. Common pyrotechnic connection and release devices include compression seats based on explosive bolts, straps based on explosive bolts or pyrotechnic cutters, compression seats based on pyrotechnic release nuts, and compression seats based on pyrotechnic cutters. These compression and release devices share the common characteristic of bearing the connection force. To ensure connection rigidity, the connection force often reaches thousands or even tens of thousands of Newtons (N). The pyrotechnics, as the main component, need to be destroyed, so the huge explosive impact force of the gunpowder must be used to unlock the device. This method is disposable, resulting in high costs, and the explosive impact force used to unlock the device can easily cause damage to the spacecraft. Utility Model Content

[0003] The purpose of this application is to provide a satellite-rocket separation and unlocking device to address at least one technical problem involved in the background technology.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] The present application provides a satellite-rocket separation and unlocking device, comprising a main body base, a locking assembly, a connecting assembly and a driving assembly, wherein the main body base is used to be fixed on a carrier, the connecting assembly is used to be connected to a load, the locking assembly and the driving assembly are both installed on the main body base, the locking assembly is used to lock the connecting assembly so that the driving assembly is in pressure contact with the load, and the locking assembly is used to unlock the connecting assembly so that the driving assembly can drive the connecting assembly to separate from the locking assembly.

[0006] Optionally, the driving assembly is used to abut against the load in a first direction, the locking assembly is located in the main body base, and the connecting assembly is used to be inserted into the main body base in the first direction and connected to the locking assembly.

[0007] The beneficial effect of this technical solution is that: in this way, the position where the connecting component and the locking component are connected can be protected by the main body base, and is not easily damaged by collision with the outside world, making it impossible to separate the connecting component and the locking component.

[0008] Optionally, in the first direction, one end of the main body base is a fixed end for connecting to the carrier, and the other end of the main body base is in contact with the connecting assembly. The locking assembly includes a spring bracket, a pressure spring, a transmission unit and a clamping unit. The transmission unit is in transmission cooperation with the clamping unit. The spring bracket is fixed to the main body base, and the spring bracket is arranged close to the fixed end. The transmission unit is located on the side of the spring bracket close to the connecting assembly. In the first direction, one end of the pressure spring is fixed to the spring bracket, and the other end of the pressure spring is in contact with the transmission unit. The pressure spring is used to drive the transmission unit and then drive the clamping unit. The clamping unit is used to clamp with the connecting assembly.

[0009] The beneficial effect of this technical solution is that: in this way, the transmission unit can be driven by the pressure spring, and then the clamping unit can be driven, so as to realize the clamping and separation between the clamping unit and the connecting unit.

[0010] Optionally, the transmission unit includes a driving rack and a driving gear, the driving rack includes an unlocking rack portion and an insertion rod connected to each other, the pressure spring is sleeved on the insertion rod, and a socket is formed on the spring bracket, the insertion rod and the insertion hole slide together in the first direction, the unlocking rack portion extends in the first direction, the driving gear is pivotally connected to the main body base, the unlocking rack portion cooperates with the driving gear, and the driving gear is used to drive the clamping unit to move.

[0011] The beneficial effect of this technical solution is that: in this way, the pressure spring is used to drive the unlocking rack part to move in the first direction, and the movement of the unlocking rack part drives the driving gear to rotate, and then the driving gear drives the clamping unit to move.

[0012] Optionally, the unlocking rack portion is in the shape of a square frame, and the unlocking rack portion has an abutment edge arranged close to the insertion rod, the abutment edge is the inner edge of the unlocking rack portion, and a socket is formed on the main body base. The locking assembly also includes a pin puller, and the pin puller includes a main body and a pin installed on the main body, the pin is used to move in the axial direction of the main body, the main body is plugged into the socket in the axial direction of the main body, and the pin is used to abut against the abutment edge in the first direction.

[0013] The beneficial effect of this technical solution is that: when the driving rack squeezes the pressure spring to a certain extent, the pin can be inserted into the square frame-shaped unlocking rack part, and the pin is abutted against the abutting edge in the first direction, so that the pressure spring is in an extruded state. At this time, the engaging unit is engaged with the connecting unit, and after the pin puller is controlled to retract the pin into the body, the unlocking rack part moves toward the position of the connecting assembly under the drive of the pressure spring, and the driving gear is driven to rotate by the unlocking rack part, thereby separating the engaging unit from the connecting unit.

[0014] Optionally, a plurality of teeth arranged in the first direction are formed on the inner wall of the unlocking rack portion, the driving gear is located in the unlocking rack portion, the driving gear is engaged with each of the teeth, and the axis of the driving gear intersects perpendicularly with the axis of the pressure spring.

[0015] The beneficial effect of this technical solution is that it improves the compactness of the assembly between the components in the transmission unit, which is conducive to reducing the miniaturization of the satellite-rocket separation unlocking device.

[0016] Optionally, the connecting assembly includes an adapter plate and a clamping block, the clamping block is fixed to the adapter plate in the first direction, and a first clamping groove is formed between the clamping block and the adapter plate; the clamping unit includes a first clamping rack and a first limiting portion fixed to the main body base, the first clamping rack includes a first rack portion and a first clamping portion connected to each other, a first slide groove extending in a second direction is formed on the first clamping rack, the first slide groove and the first limiting portion slide in the second direction, the first clamping portion is used to clamp with the first clamping groove, the first rack portion extends in the second direction, the first rack portion cooperates with the driving gear, the second direction is perpendicular to the first direction, the first direction and the second direction are both perpendicular to a third direction, and the third direction is the axial direction of the driving gear.

[0017] The beneficial effect of this technical solution is that: in this way, when the driving rack moves in the first direction driven by the pressure spring, it drives the driving gear to rotate, and the driving gear cooperates with the first rack part of the first clamping rack, thereby driving the first clamping rack to move in the second direction. When the driving rack is in the initial position, the pressure spring is compressed, and the first clamping part of the first clamping rack is clamped with the first clamping groove to lock the connecting assembly. After the restriction on the position of the driving rack is removed, the driving rack moves to a position close to the connecting assembly under the action of the pressure spring and drives the driving gear to rotate. The first clamping rack moves in the second direction driven by the driving gear, and the first clamping part is separated from the first clamping groove, so that the connecting assembly can be separated from the locking assembly and the main body base.

[0018] Optionally, the locking unit includes a second locking rack and a second limiting portion fixed to the main body base, the second locking rack includes a second rack portion and a second locking portion connected to each other, a second slide groove extending in the second direction is formed on the second locking rack, the second slide groove and the second limiting portion slide in the second direction. A second locking groove is formed between the locking block and the adapter plate, the second locking portion is used to lock with the second locking groove, the second rack portion extends in the second direction, the second rack portion cooperates with the driving gear, and in the second direction, the first locking rack and the second locking rack are respectively located on opposite sides of the driving gear.

[0019] The beneficial effect of this technical solution is that: in this way, the first locking rack is locked with the first locking groove, the second locking rack is locked with the second locking groove, and the first locking rack and the second locking rack are locked with the connecting assembly together, so as to achieve a more secure limitation of the connecting assembly; specifically, when the driving rack moves in the first direction under the drive of the pressure spring, it drives the driving gear to rotate, and the driving gear cooperates with the second rack portion of the second locking rack, thereby driving the second locking rack to move in the second direction. When the driving rack is in the initial position, the pressure spring is compressed, and the second locking portion of the second locking rack is locked with the second locking groove to lock the connecting assembly. When the restriction on the position of the driving rack is removed, the driving rack moves to a position close to the connecting assembly under the action of the pressure spring and drives the driving gear to rotate. The second locking rack moves in the second direction under the drive of the driving gear, the second locking portion is separated from the second locking groove, the first locking rack is separated from the first locking groove, and the second locking rack is separated from the second locking groove, and the connecting assembly can be separated from the locking assembly and the main body base.

[0020] Optionally, the drive assembly includes a separation base, a push rod and a separation spring, the separation base includes a base portion and a sleeve portion, the base portion is fixed to the main body base, the sleeve portion is fixed to the base portion, the push rod includes a rod portion and a limiting head, the diameter of the limiting head is larger than the diameter of the rod portion, the separation spring is sleeved outside the sleeve portion, the sleeve portion is sleeved outside the rod portion, the limiting head is fixed to an end of the rod portion away from the base portion, the limiting head and the base portion are both in contact with the separation spring, the limiting head is used to abut against the load, and the axial direction of the sleeve portion is parallel to the first direction.

[0021] The beneficial effect of this technical solution is that: when the locking assembly locks the connecting assembly, the load abuts against the limit head and compresses the separation spring. When the locking assembly unlocks the connecting assembly, the limit head moves away from the separation base under the action of the separation spring, and the rod portion of the push rod slides with the sleeve portion of the separation base, and at the same time, moves away from the main body base under the action of the limit head.

[0022] Optionally, the drive assembly further comprises a limit member, which is fixed to one end of the rod away from the limit head, the inner hole of the sleeve portion comprises a larger diameter section and a smaller diameter section, the smaller diameter section is arranged close to the limit head, the diameter of the smaller diameter section corresponds to the diameter of the rod, the diameter of the limit member corresponds to the diameter of the larger diameter section, the limit member is located in the larger diameter section, and the step between the larger diameter section and the smaller diameter section is used to abut against the limit member.

[0023] The beneficial effect of this technical solution is that when the push rod moves in the direction away from the separation base under the action of the separation spring, the step between the larger diameter section and the smaller diameter section limits the extreme position to which the push rod can move, thereby preventing the push rod from separating from the sleeve part.

[0024] The technical solution provided by this application can achieve at least one of the following beneficial effects:

[0025] The satellite-rocket separation unlocking device provided in this application can replace existing pyrotechnics to achieve the separation of the payload and the carrier under the drive of the driving component. It does not need to use the huge explosive impact force of gunpowder for unlocking and is not easy to cause damage to the spacecraft. Moreover, since there is no need to destroy the satellite-rocket separation unlocking device itself, the satellite-rocket separation unlocking device is not disposable and the cost of use is relatively low.

[0026] The additional technical features and advantages of this application will be more clearly explained in the following description, or can be understood through the specific practice of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the technical solutions of the specific embodiments of this application, the following briefly introduces the drawings required for describing the specific embodiments. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0028] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the satellite-rocket separation and unlocking device provided in an embodiment of the present application;

[0029] Figure 2A schematic cross-sectional view of one state of an embodiment of a satellite-rocket separation and unlocking device provided in an embodiment of the present application;

[0030] Figure 3 A schematic cross-sectional view of another state of an embodiment of the satellite-rocket separation and unlocking device provided in an embodiment of the present application;

[0031] Figure 4 A schematic side sectional view of an embodiment of the satellite-rocket separation and unlocking device provided in an embodiment of the present application.

[0032] Reference numerals:

[0033] 01. Separation spring; 02. Base;

[0034] 03. Main body base; 04. Limit head;

[0035] 05. Compression nut; 06. Adapter plate;

[0036] 07. Pin puller; 08. First clamping portion;

[0037] 09. Clamping block; 10. Second clamping portion;

[0038] 11. Second engaging rack; 12. Second limiting portion;

[0039] 13. Driving gear; 14. First engaging rack;

[0040] 15. Driving rack; 16. First limiting portion;

[0041] 17. First chute; 18. Pressure spring;

[0042] 19. Spring bracket; 20. First rack portion;

[0043] 21. Insert rod; 22. Unlock rack;

[0044] 23. Second rack portion; 24. Sleeve portion;

[0045] 25. First card slot; 26. Second card slot;

[0046] 27. Rod; 28. Body;

[0047] 29. Sales. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0049] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0051] like Figures 1 to 4 As shown, the present application provides a satellite-rocket separation and unlocking device, including a main base 03, a locking assembly, a connecting assembly and a driving assembly, wherein the main base 03 is used to be fixed on a carrier, the connecting assembly is used to be connected to a load, the locking assembly and the driving assembly are both installed on the main base 03, the driving assembly is used to contact the load, the locking assembly is used to lock the connecting assembly so that the driving assembly is in contact with the connecting assembly, and the locking assembly is used to unlock the connecting assembly so that the driving assembly can drive the connecting assembly to separate from the locking assembly.

[0052] In the embodiment of the present application, the locking component is used to lock the connecting component, which means that after the locking component is connected to the connecting component, the locking component fixes the position of the connecting component relative to the main base 03, and the connecting component is in a stationary state relative to the main base 03; the locking component is used to unlock the connecting component, which means that the locking component and the connecting component are in a non-connected state, so that the connecting component can move relative to the main base 03 under the action of the driving component, and the connecting component can be completely separated from the locking component.

[0053] The satellite-rocket separation unlocking device provided in the embodiment of the present application, when in use, fixes the main base 03 on the carrier, fixes the load on the connecting assembly, and then locks the connecting assembly through the locking assembly. At this time, the connecting assembly and the load fixed on the connecting assembly are in a stationary state relative to the main base 03, and at this time, the load is in contact with the driving assembly. When the load needs to be released from the carrier, the locking assembly is controlled to unlock the connecting assembly. During this process, the driving assembly drives the load and the connecting assembly to move away from the main base 03, and finally completely separates the connecting assembly from the locking assembly. After the load reaches a certain moving speed, the driving assembly completes the driving effect on the load, and the load separates from the driving assembly and continues to move.

[0054] The satellite-rocket separation unlocking device provided in this application can replace existing pyrotechnics to achieve the separation of the payload and the carrier under the drive of the driving component. It does not need to use the huge explosive impact force of gunpowder for unlocking and is not easy to cause damage to the spacecraft. Moreover, since there is no need to destroy the satellite-rocket separation unlocking device itself, the satellite-rocket separation unlocking device is not disposable and the cost of use is relatively low.

[0055] Optionally, the drive assembly is configured to abut the load in a first direction, the locking assembly is located within the main body base 03, and the connecting assembly is configured to be inserted into the main body base 03 in the first direction and connected to the locking assembly. In this way, the location where the connecting assembly and the locking assembly are connected is protected by the main body base 03, making them less susceptible to damage from external collisions, and making the connecting assembly and the locking assembly inseparable. Of course, the locking assembly can also be located outside the main body base 03, with the connecting assembly and the locking assembly connected outside the main body base 03.

[0056] Optionally, in the first direction, one end of the main body base 03 is a fixed end for connecting to a carrier, and the other end of the main body base 03 contacts the connecting assembly. The locking assembly includes a spring bracket 19, a pressure spring 18, a transmission unit, and a clamping unit. The transmission unit and the clamping unit are in transmission cooperation. The spring bracket 19 is fixed to the main body base 03, and the spring bracket 19 is arranged near the fixed end. The transmission unit is located on a side of the spring bracket 19 near the connecting assembly. In the first direction, one end of the pressure spring 18 is fixed to the spring bracket 19, and the other end of the pressure spring 18 contacts the transmission unit. The pressure spring 18 is used to drive the transmission unit and then drive the clamping unit, and the clamping unit is used to clamp with the connecting assembly. In this way, the pressure spring 18 can drive the transmission unit, and then drive the clamping unit, to achieve clamping and separation between the clamping unit and the connecting unit.

[0057] Optionally, the transmission unit includes a drive rack 15 and a drive gear 13. The drive rack 15 includes an interconnected unlocking rack portion 22 and an insertion rod 21. The pressure spring 18 is mounted on the insertion rod 21. A socket is formed on the spring bracket 19. The insertion rod 21 slides in engagement with the socket in the first direction. The unlocking rack portion 22 extends in the first direction. The drive gear 13 is pivotally connected to the main body base 03. The unlocking rack portion 22 engages with the drive gear 13. The drive gear 13 is configured to drive the engaging unit to move. In this way, the pressure spring 18 is configured to drive the unlocking rack portion 22 to move in the first direction. The movement of the unlocking rack portion 22 drives the drive gear 13 to rotate, thereby driving the drive gear 13 to drive the engaging unit to move.

[0058] Optionally, the unlocking rack portion 22 is frame-shaped, and the unlocking rack portion 22 has an abutment edge arranged close to the insertion rod 21, and the abutment edge is the inner edge of the unlocking rack portion 22. A socket is formed on the main body base 03, and the locking assembly also includes a pin puller 07, and the pin puller 07 includes a main body 28 and a pin 29 installed on the main body 28, and the pin 29 is used to move in the axial direction of the main body 28, and the main body 28 is plugged into the socket in the axial direction of the main body 28, and the pin 29 is used to abut against the abutment edge in the first direction. In this way, when the driving rack 15 squeezes the pressure spring 18 to a certain extent, the pin 29 can be inserted into the square-shaped unlocking rack part 22, and the pin 29 is abutted against the abutting edge in the first direction, so that the pressure spring 18 is in an extruded state. At this time, the clamping unit is clamped with the connecting unit. After the pin puller 29 device 07 is controlled to retract the pin 29 into the main body 28, the unlocking rack part 22 moves toward the position of the connecting component under the drive of the pressure spring 18, and the driving gear 13 is driven to rotate by the unlocking rack part 22, thereby separating the clamping unit from the connecting unit.

[0059] Optionally, the inner wall of the unlocking rack portion 22 is formed with a plurality of teeth arranged in the first direction. The drive gear 13 is located within the unlocking rack portion 22 and meshes with each of the teeth. The axis of the drive gear 13 intersects perpendicularly with the axis of the pressure spring 18. This improves the compactness of the assembly between the various components of the transmission unit and facilitates the miniaturization of the satellite-rocket separation unlocking device. Preferably, the drive gear 13 is pivotally connected to the main body base 03 via a rotating shaft.

[0060] Optionally, the connecting assembly includes an adapter plate 06 and a clamping block 09, the clamping block 09 is fixed to the adapter plate 06 in the first direction, and a first clamping groove 25 is formed between the clamping block 09 and the adapter plate 06; the clamping unit includes a first clamping rack 14 and a first limiting portion 16 fixed to the main body base 03, the first clamping rack 14 includes a first rack portion 20 and a first clamping portion 08 connected to each other, a first slide groove 17 extending in the second direction is formed on the first clamping rack 14, the first slide groove 17 and the first limiting portion 16 slide in the second direction, the first clamping portion 08 is used to clamp with the first clamping groove 25, the first rack portion 20 extends in the second direction, the first rack portion 20 cooperates with the driving gear 13, the second direction is perpendicular to the first direction, the first direction and the second direction are both perpendicular to a third direction, and the third direction is the axial direction of the driving gear 13. In this way, when the driving rack 15 moves in the first direction under the drive of the pressure spring 18, it drives the driving gear 13 to rotate. The driving gear 13 cooperates with the first rack portion 20 of the first engaging rack 14, thereby driving the first engaging rack 14 to move in the second direction. When the driving rack 15 is in the initial position, the pressure spring 18 is compressed, and the first engaging portion 08 of the first engaging rack 14 engages with the first engaging groove 25, locking the connecting assembly. When the position restriction of the driving rack 15 is removed, the driving rack 15 moves to a position close to the connecting assembly under the action of the pressure spring 18 and drives the driving gear 13 to rotate. The first engaging rack 14 moves in the second direction under the drive of the driving gear 13, and the first engaging portion 08 separates from the first engaging groove 25, and the connecting assembly can be separated from the locking assembly and the main body base 03. The adapter plate 06 and the engaging block 09 are preferably connected by a compression nut 05.

[0061] Optionally, the locking unit includes a second locking rack 11 and a second limiting portion 12 fixed to the main base 03, the second locking rack 11 includes a second rack portion 23 and a second locking portion 10 connected to each other, a second slide groove 24 extending in the second direction is formed on the second locking rack 11, the second slide groove 24 and the second limiting portion 12 slide in the second direction. A second locking groove 26 is formed between the locking block 09 and the adapter plate 06, the second locking portion 10 is used to lock with the second locking groove 26, the second rack portion 23 extends in the second direction, and the second rack portion 23 cooperates with the driving gear 13. In the second direction, the first locking rack 14 and the second locking rack 11 are respectively located on opposite sides of the driving gear 13. In this way, the first engaging rack 14 is engaged with the first engaging groove 25, the second engaging rack 11 is engaged with the second engaging groove 26, and the first engaging rack 14 and the second engaging rack 11 are engaged with the connecting assembly together, thereby achieving a more secure limitation of the connecting assembly; specifically, when the driving rack 15 moves in the first direction driven by the pressure spring 18, it drives the driving gear 13 to rotate, and the driving gear 13 cooperates with the second rack portion 23 of the second engaging rack 11, thereby driving the second engaging rack 11 to move in the second direction. When the driving rack 15 is in the initial position, the pressure spring 18 is compressed, and the first engaging rack 14 and the second engaging rack 11 are engaged with the connecting assembly together, thereby achieving a more secure limitation of the connecting assembly. The second engaging portion 10 of the second engaging rack 11 engages with the second engaging groove 26, locking the connecting assembly. When the position restriction on the driving rack 15 is removed, the driving rack 15 moves toward a position close to the connecting assembly under the action of the pressure spring 18 and drives the driving gear 13 to rotate. The second engaging rack 11 moves in the second direction under the drive gear 13, and the second engaging portion 10 separates from the second engaging groove 26. The first engaging rack 14 separates from the first engaging groove 25, and the second engaging rack 11 separates from the second engaging groove 26. The connecting assembly can then be separated from the locking assembly and the main base 03. In the embodiment of the present application, the first engaging portion 08 and the second engaging portion 10 are both axes extending in the third direction.

[0062] Optionally, the drive assembly includes a separation base, a push rod and a separation spring 01, the separation base includes a base portion 02 and a sleeve portion 24, the base portion 02 is fixed to the main base 03, the sleeve portion 24 is fixed to the base portion 02, the push rod includes a rod portion 27 and a limiting head 04, the diameter of the limiting head 04 is larger than the diameter of the rod portion 27, the separation spring 01 is sleeved outside the sleeve portion 24, the sleeve portion 24 is sleeved outside the rod portion 27, the limiting head 04 is fixed to an end of the rod portion 27 away from the base portion 02, the limiting head 04 and the base portion 02 are both in contact with the separation spring 01, the limiting head 04 is used to abut against the load, and the axial direction of the sleeve portion 24 is parallel to the first direction. In this way, when the locking assembly locks the connecting assembly, the load abuts against the limit head 04 and compresses the separation spring 01. When the locking assembly unlocks the connecting assembly, the limit head 04 moves in the direction away from the separation base under the action of the separation spring 01, and the rod portion 27 of the push rod slides with the sleeve portion 24 of the separation base. At the same time, under the action of the limit head 04, it moves in the direction away from the main base 03.

[0063] Optionally, the drive assembly further includes a stopper 30, which is fixed to an end of the rod 27 away from the stopper head 04. The inner hole of the sleeve portion 24 includes a larger diameter section and a smaller diameter section. The smaller diameter section is disposed near the stopper head 04. The diameter of the smaller diameter section corresponds to the diameter of the rod 27. The diameter of the stopper 30 corresponds to the diameter of the larger diameter section. The stopper 30 is located within the larger diameter section. The step 25 between the larger diameter section and the smaller diameter section is configured to abut against the stopper 30. In this way, when the push rod moves in a direction away from the separation base under the action of the separation spring 01, the step 25 between the larger diameter section and the smaller diameter section limits the push rod to the limit position to which it can move, thereby preventing the push rod from separating from the sleeve portion 24.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The satellite-rocket separation unlocking device is characterized by: It includes a main body base, a locking assembly, a connecting assembly and a driving assembly, the main body base is used to be fixed on a carrier, the connecting assembly is used to be connected to a load, the locking assembly and the driving assembly are both installed on the main body base, the locking assembly is used to lock the connecting assembly so that the driving assembly is in pressure contact with the load, and the locking assembly is used to unlock the connecting assembly so that the driving assembly can drive the connecting assembly to separate from the locking assembly.

2. The satellite-rocket separation and unlocking device according to claim 1, characterized in that: The driving assembly is used to abut against the load in a first direction, the locking assembly is located in the main body base, and the connecting assembly is used to be inserted into the main body base in the first direction and connected to the locking assembly.

3. The satellite-rocket separation and unlocking device according to claim 2, characterized in that: In the first direction, one end of the main body base is a fixed end for connecting to the carrier, and the other end of the main body base is in contact with the connecting assembly. The locking assembly includes a spring bracket, a pressure spring, a transmission unit and a clamping unit. The transmission unit is in transmission cooperation with the clamping unit. The spring bracket is fixed to the main body base, and the spring bracket is arranged close to the fixed end. The transmission unit is located on the side of the spring bracket close to the connecting assembly. In the first direction, one end of the pressure spring is fixed to the spring bracket, and the other end of the pressure spring is in contact with the transmission unit. The pressure spring is used to drive the transmission unit and then drive the clamping unit. The clamping unit is used to clamp with the connecting assembly.

4. The satellite-rocket separation and unlocking device according to claim 3, characterized in that: The transmission unit includes a driving rack and a driving gear, the driving rack includes an unlocking rack portion and an insertion rod connected to each other, the pressure spring is sleeved on the insertion rod, and a socket is formed on the spring bracket, the insertion rod and the insertion hole are slidably matched in the first direction, the unlocking rack portion extends in the first direction, the driving gear is pivotally connected to the main body base, the unlocking rack portion cooperates with the driving gear, and the driving gear is used to drive the clamping unit to move.

5. The satellite-rocket separation and unlocking device according to claim 4, characterized in that: The unlocking rack portion is in the shape of a square frame, and the unlocking rack portion has an abutting edge arranged close to the insertion rod, and the abutting edge is the inner edge of the unlocking rack portion. A socket is formed on the main body base, and the locking assembly also includes a pin puller, and the pin puller includes a body and a pin installed on the body, and the pin is used to move in the axial direction of the body, and the body is plugged into the socket in the axial direction of the body, and the pin is used to abut against the abutting edge in the first direction.

6. The satellite-rocket separation and unlocking device according to claim 5, characterized in that: A plurality of teeth arranged in the first direction are formed on the inner wall of the unlocking rack portion. The driving gear is located in the unlocking rack portion. The driving gear is engaged with each of the teeth. The axis of the driving gear intersects the axis of the pressure spring at right angles.

7. The satellite-rocket separation and unlocking device according to any one of claims 4 to 6, characterized in that: The first gear wheel is connected with the driving gear of the driving gear, and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear and the transmission gear 8. The satellite-rocket separation and unlocking device according to claim 7, characterized in that: The locking unit includes a second locking rack and a second limiting portion fixed to the main body base, the second locking rack includes a second rack portion and a second locking portion connected to each other, a second slide groove extending in the second direction is formed on the second locking rack, the second slide groove and the second limiting portion slide in the second direction. A second locking groove is formed between the locking block and the adapter plate, the second locking portion is used to lock with the second locking groove, the second rack portion extends in the second direction, the second rack portion cooperates with the driving gear, and in the second direction, the first locking rack and the second locking rack are respectively located on opposite sides of the driving gear.

9. The satellite-rocket separation and unlocking device according to claim 7, characterized in that: The drive assembly includes a separation base, a push rod and a separation spring, the separation base includes a base portion and a sleeve portion, the base portion is fixed to the main body base, the sleeve portion is fixed to the base portion, the push rod includes a rod portion and a limiting head, the diameter of the limiting head is larger than the diameter of the rod portion, the separation spring is sleeved outside the sleeve portion, the sleeve portion is sleeved outside the rod portion, the limiting head is fixed to one end of the rod portion away from the base portion, the limiting head and the base portion are both in contact with the separation spring, the limiting head is used to abut against the load, and the axial direction of the sleeve portion is parallel to the first direction.

10. The satellite-rocket separation and unlocking device according to claim 9, characterized in that: The drive assembly also includes a limit member, which is fixed to one end of the rod away from the limit head. The inner hole of the sleeve portion includes a larger diameter section and a smaller diameter section. The smaller diameter section is arranged close to the limit head. The diameter of the smaller diameter section corresponds to the diameter of the rod. The diameter of the limit member corresponds to the diameter of the larger diameter section. The limit member is located in the larger diameter section. The step between the larger diameter section and the smaller diameter section is used to abut against the limit member.

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