CN117755529A - unlocking and separating device and aircraft - Google Patents
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- CN117755529A CN117755529A CN202410194851.8A CN202410194851A CN117755529A CN 117755529 A CN117755529 A CN 117755529A CN 202410194851 A CN202410194851 A CN 202410194851A CN 117755529 A CN117755529 A CN 117755529A
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Abstract
The invention discloses an unlocking and separating device and an aircraft, and relates to the technical field of separating systems of spaceflight vehicles, so as to solve the problems of complex structure and long response time of the unlocking and separating device. The unlocking and separating device comprises a shell, a hollow supporting piece, a pneumatic piston and a separable connecting piece, wherein the hollow supporting piece, the pneumatic piston and the separable connecting piece are respectively arranged in the shell, the separable connecting piece and the separable connecting piece are used for being connected with a butt joint piece, a limiting cavity for accommodating the hollow supporting piece is formed in the shell, the separable connecting piece and the pneumatic piston are arranged in the hollow supporting piece along the axial direction of the shell, the hollow supporting piece is in sliding connection with the inner side wall of the shell, and the pneumatic piston is in sliding connection with the inner side wall of the hollow supporting piece. The housing has a first end portion adjacent the pneumatic piston and a second end portion adjacent the separable connector, the first end portion being resiliently coupled to the hollow support. The unlocking and separating device and the aircraft are used for unlocking and separating operation in a short time.
Description
Technical Field
the invention relates to the technical field of separation systems of space vehicles, in particular to an unlocking and separating device and an aircraft.
Background
Separating devices are classified into a fire work and a non-fire work according to a triggering mode, wherein the fire work separating device is the earliest to use and is the most widely used at present. The device is generally suitable for large satellite separation, powder in a powder cavity is required to be ignited during unlocking, and unlocking of the satellite and the rocket is realized by breaking the bolts. But has the defects of large separation impact force, pollutant generation, unrepeatable test and use, and the like. Impact load is generated when the fire separating device works, and accidents such as spacecraft accident and the like can be caused when the fire separating device is serious.
At present, more and more researchers are beginning to study non-fire separation devices with small separation impact and repeated use. The prior non-fire separating device comprises a fusing separating device, a paraffin driving separating device, an electromagnetic driving separating device, a motor driving separating device, a memory metal separating device and the like. The motor driving and separating device has a complex structure, has strict requirements on motor performance, cannot be subjected to redundant design, and can provide smaller separating nut connecting force. The shape memory alloy separating device needs to be provided with an independent power supply, preheating is performed in advance for 60 seconds, otherwise, the separating response time requirement cannot be met, and the reliability is not friendly enough.
Disclosure of Invention
The invention aims to provide an unlocking and separating device which is simple in structure and can complete unlocking operation in a short response time.
In order to achieve the above object, the present invention provides an unlock separating apparatus, comprising: the pneumatic device comprises a shell, a hollow supporting piece, a pneumatic piston and a separable connecting piece, wherein the hollow supporting piece, the pneumatic piston and the separable connecting piece are respectively arranged in the shell, the separable connecting piece and the pneumatic piston are respectively arranged in the hollow supporting piece along the axial direction of the shell, the hollow supporting piece is in sliding connection with the inner side wall of the shell, and the pneumatic piston is in sliding connection with the inner side wall of the hollow supporting piece;
The shell is provided with a first end part and a second end part, the first end part is close to the pneumatic piston, the second end part is close to the separable connecting piece, the first end part is elastically connected with the hollow supporting piece, the second end part is provided with a first through hole for the butt joint piece to enter and exit the shell, one end, close to the second end part, of the hollow supporting piece is provided with a first opening, the separable connecting piece is provided with a second through hole, and the first through hole is communicated with the second through hole through the first opening.
Compared with the prior art, in the unlocking and separating device provided by the invention, the second end part of the shell is close to the separable connecting piece, the second end part is provided with the first through hole for the butt joint piece to enter and exit the shell, one end of the hollow supporting piece close to the second end part is provided with the first opening, the separable connecting piece is provided with the second through hole, and the first through hole is communicated with the second through hole through the first opening, so that the butt joint piece can enter the second through hole of the separable connecting piece through the first through hole and the first opening. And because separable connecting piece and pneumatic piston establish in hollow support piece along the axial direction of casing, hollow support piece and the inside wall sliding connection of casing, pneumatic piston and the inside wall sliding connection of hollow support piece, consequently, can be through the pneumatic piston to be close to the direction removal of separable connecting piece under the promotion of gas to with separable connecting piece top open, thereby guarantee that the butt joint piece in the second through-hole can leave the casing through first opening and first through-hole fast, thereby realized the unblock of unblock separator. The response time is less than or equal to 20ms through experiments, the impact force caused by the unlocking process is small, and the method is safe and reliable. The source of the gas introduced by the unlocking and separating device is wide, independent gas distribution is not needed, and the unlocking operation can be completed only by using the gas source of the aircraft.
meanwhile, when the gas pushes the pneumatic piston to be close to the separable connecting piece, the hollow supporting piece can move towards the second end part of the shell under the action of the gas, and the first end part is elastically connected with the hollow supporting piece, so that elastic potential energy can be accumulated in the process of moving the hollow supporting piece towards the second end of the shell. When the pneumatic piston pushes up the separable connecting piece to unlock, the pressure of the gas borne by the pneumatic piston is smaller and smaller, so that the hollow supporting piece rapidly rebounds to a state before unlocking under the action of elastic potential energy, namely, the state that the butt joint piece is fixed by the separable connecting piece. In this way a quick reset of the unlocking separation means can be achieved.
From the above, the unlocking and resetting method of the unlocking and separating device provided by the invention is simple and feasible, has short response time, does not generate pollution, and does not need to be provided with test equipment and inspection equipment matched with the unlocking and separating device in the use process, so that the production cost and the operation cost are reduced while the separating effect of the unlocking and separating device is ensured.
The unlocking and separating device provided by the embodiment of the invention has a simple structure, can be used for carrying out redundant design, does not need motor driving, does not need shape memory metal with longer preheating time, and has larger connecting force because the used separable connecting piece does not contain a weakening layer. In addition, the unlocking and separating device can be tested on the ground for a plurality of times, so that test verification is convenient, and the reliability of the unlocking and separating device is easy to ensure.
The embodiment of the invention also provides an aircraft, which comprises the unlocking and separating device of the first aspect.
compared with the prior art, the beneficial effects of the aircraft provided by the invention are the same as those of the unlocking and separating device, and the description is omitted here.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
Fig. 1 shows a schematic structural diagram of an unlocking and separating device according to an embodiment of the present invention;
reference numerals:
1-a housing; 2-a hollow support; 3-a pneumatic piston; 4-a separable connector; 5-a base; 6-limiting the cavity; 7-a hollow push rod; 8-a first elastic member; 9-a second elastic member.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Separating devices are classified into a fire work and a non-fire work according to a triggering mode, wherein the fire work separating device is the earliest to use and is the most widely used at present. The device is generally suitable for large satellite separation, powder in a powder cavity is required to be ignited during unlocking, and unlocking of the satellite and the rocket is realized by breaking the bolts. But has the defects of large separation impact force, pollutant generation, unrepeatable test and use, and the like. Impact load is generated when the fire separating device works, and accidents such as spacecraft accident and the like can be caused when the fire separating device is serious.
The non-fire separating device at the present stage comprises a fusing separating device, a paraffin driving separating device, an electromagnetic driving separating device, a motor driving separating device, a memory metal separating device and the like. The motor driving and separating device has a complex structure, has strict requirements on motor performance, cannot be subjected to redundant design, and can provide smaller separating nut connecting force. The shape memory alloy separating device needs to be provided with an independent power supply, preheating is performed in advance for 60 seconds, otherwise, the separating response time requirement cannot be met, and the reliability is not friendly enough.
Aiming at the problems, the embodiment of the invention provides an unlocking and separating device which has a simple structure and can complete unlocking operation in a shorter response time.
Fig. 1 shows a schematic structural diagram of an unlocking separation device provided in an embodiment of the present invention. As shown in fig. 1, the unlocking and separating device comprises a shell 1, a hollow supporting piece 2, a pneumatic piston 3 and a separable connecting piece 4, wherein the hollow supporting piece 2, the pneumatic piston 3 and the separable connecting piece 4 are respectively arranged in the shell 1, the separable connecting piece 4 and the pneumatic piston 3 are arranged in the hollow supporting piece 2 along the axial direction of the shell 1, the hollow supporting piece 2 is in sliding connection with the inner side wall of the shell 1, and the pneumatic piston 3 is in sliding connection with the inner side wall of the hollow supporting piece 2;
The housing 1 has a first end portion close to the air piston 3 and a second end portion close to the separable connector 4, the first end portion is elastically connected with the hollow support 2, the second end portion has a first through hole for the docking member to enter and exit the housing 1, one end of the hollow support 2 close to the second end portion has a first opening, the separable connector 4 has a second through hole, and the first through hole communicates with the second through hole through the first opening.
In the implementation, since the second end of the shell is close to the separable connecting piece, and the second end is provided with the first through hole for the butt joint piece to enter and exit the shell, one end of the hollow supporting piece close to the second end is provided with the first opening, the separable connecting piece is provided with the second through hole, and the first through hole is communicated with the second through hole through the first opening. Based on this, the docking piece can enter the second through hole provided in the separable connector through the first through hole and the first opening. And because separable connecting piece and pneumatic piston establish in hollow support piece along the axial direction of casing, hollow support piece and the inside wall sliding connection of casing, pneumatic piston and the inside wall sliding connection of hollow support piece, consequently, can be through the pneumatic piston to be close to the direction removal of separable connecting piece under the promotion of gas to with separable connecting piece top open, thereby guarantee that the butt joint piece in the second through-hole can leave the casing through first opening and first through-hole fast, thereby realized the unblock of unblock separator. The response time is less than or equal to 20ms through experiments, the impact force caused by the unlocking process is small, and the method is safe and reliable. The source of the gas introduced by the unlocking and separating device is wide, independent gas distribution is not needed, and the unlocking operation can be completed only by using the gas source of the aircraft.
Meanwhile, when the gas pushes the pneumatic piston to be close to the separable connecting piece, the hollow supporting piece can move towards the second end part of the shell under the action of the gas, and elastic potential energy can be accumulated in the process that the hollow supporting piece moves towards the second end of the shell. When the pneumatic piston pushes up the separable connecting piece to unlock, the pressure of the gas borne by the pneumatic piston is smaller and smaller, so that the hollow supporting piece rapidly rebounds to a state before unlocking under the action of elastic potential energy, namely, the state that the butt joint piece is fixed by the separable connecting piece. In this way a quick reset of the unlocking separation means can be achieved.
From the above, the unlocking and resetting method of the unlocking and separating device provided by the invention is simple and feasible, has short response time, does not generate pollution, and does not need to be provided with test equipment and inspection equipment matched with the unlocking and separating device in the use process, so that the production cost and the operation cost are reduced while the separating effect of the unlocking and separating device is ensured.
In an alternative, the number of separable connectors is plural, and the plurality of separable connectors are circumferentially distributed within the hollow support to ensure that stability of the unlocking separation device is maintained, and the number of separable connectors may be 3-6, for example 3, 6 or 8.
illustratively, when the abutment is an externally threaded abutment, an internal thread is formed in the second through bore that mates with an external thread provided by the externally threaded abutment. The abutment acts as a fastener and in order to maintain the stability of the connection of the abutment and the separable connector, it is necessary to select an externally threaded abutment that mates with an internal thread in the second through hole of the separable connector. Here, the thread gauge of the separable connector may be at least one of M14, M16.
After the thread specification is adopted, the connecting force of the separable connecting piece is obviously improved, so that when the unlocking and separating device is interfered by external force, the probability of translocation of parts of the unlocking and separating device caused by fracture of the separable connecting piece can be reduced, and the operation safety of the unlocking and separating device is ensured. In the prior art, the motor-driven unlocking and separating device needs to be provided with a weakening layer for bearing gunpowder in the separable connecting piece, but the unlocking and separating device provided by the embodiment of the invention is of a pure mechanical structure, and the used separable connecting piece is of a solid structure, so that the separable connecting piece has larger connecting force compared with the separable connecting piece in the motor-driven unlocking and separating device.
Illustratively, as shown in fig. 1, the housing 1 has a base 5 at a second end, and a first through hole is opened in the base 5. Before the unlocking and separating device is used, a plurality of separable connecting pieces 4 positioned in the hollow supporting piece 2 can be circumferentially arranged on the base 5 of the shell 1, the butt joint piece penetrates into the separable connecting pieces 4, and after the butt joint piece is manually locked, a pretightening moment is applied according to actual needs. It should be understood that the pretightening moment applied thereto may be adjusted according to practical situations, and is not limited herein.
in order to further improve the air pressure in the unlocking and separating device, the inner side wall of the hollow supporting piece is provided with a first limiting surface facing the end surface of the separable connecting piece, which is close to the pneumatic piston;
when the pneumatic piston is in an extrusion state, the pneumatic piston is propped against the separable connecting piece, and the first limiting surface is contacted with the end surface of the pneumatic piston.
During implementation, under the action of air pressure, the pneumatic piston is in an extrusion state and is propped against the separable connecting piece, at the moment, the first limiting surface positioned on the inner side wall of the hollow supporting piece is propped against the end surface of the separable connecting piece, which is close to the pneumatic piston, and the separable connecting piece is driven to be separated along the radial direction under the reaction force, so that the butt joint piece in the second through hole can be ensured to leave the shell through the first opening and the first through hole quickly, and the quick unlocking of the unlocking and separating device is realized. In the process, the movement stroke of the separable connecting piece is short, the response time is less than or equal to 20ms through experiments, the impact force caused by the unlocking process is small, and the method is safe and reliable. It should be understood that the shape of the first limiting surface may be conical or square, so long as the first limiting surface can match with the end surface of the separable connector, which is close to the pneumatic piston, and the shape is not limited herein.
In an alternative way, as shown in fig. 1, the inside of the housing 1 has a limiting cavity 6 for accommodating the hollow support 2, and the limiting cavity 6 may be formed by forming a groove in the inner side wall of the housing 1. The inner wall of the shell 1 is provided with a second limiting surface facing the second end part, and the limiting cavity 6 is positioned in a region between the second limiting surface and the second end part;
when the pneumatic piston 3 is in the extrusion state, the surface of the hollow support 2 facing the first end portion abuts against the second limiting surface.
When the limiting cavity is filled with air, the pneumatic piston is in an extrusion state under the action of air pressure and slides along the direction close to the second end, and meanwhile, the hollow supporting piece slides along the direction towards the first end and is propped against the second limiting surface under the reaction force of the air pressure, so that the air pressure of the hollow supporting piece is gradually increased, and the pneumatic piston is further pushed to slide along the direction close to the second end until the pneumatic piston pushes the separable connecting piece. At this time, the butt joint piece in the second through hole can leave the casing through first opening and first through hole fast to the quick unblock of unblock separator has been realized.
In an alternative way, as shown in fig. 1, the unlocking and separating device further comprises a hollow push rod 7 used for communicating with an air source, the hollow support 2 is slidably sleeved on the hollow push rod 7, the hollow support 2 is sealed with the hollow push rod 7, and the pneumatic piston 3 is sealed with the hollow support 2. It should be understood that the air source used in the embodiment of the invention can be inert gas, preferably nitrogen, and in practical application, the air source carried by the aircraft can be used without separate air distribution or the arrangement of matched equipment on the ground, thereby improving the economy of the unlocking and separating device.
When the air source is in specific implementation, the air source is introduced into the hollow push rod, and the hollow support piece is sleeved on the hollow push rod in a sliding way and presses the pneumatic piston towards the direction close to the second end under the action of air pressure, so that the hollow support piece slides towards the direction far away from the second end under the action of the reaction force and is propped against the second limiting surface. And since the first end portion is elastically connected to the hollow support, elastic potential energy can be accumulated during movement of the hollow support toward the second end of the housing.
At this time, the first limiting surface positioned on the inner side wall of the hollow supporting piece is propped against the end surface of the separable connecting piece, which is close to the pneumatic piston, and the separable connecting piece is driven to be separated along the radial direction under the reaction force, and the butt joint piece positioned in the second through hole of the separable connecting piece falls into the first through hole of the shell along with the butt joint piece, so that the unlocking of the unlocking and separating device is realized. Because the hollow supporting piece is sealed with the hollow push rod, the pneumatic piston is sealed with the hollow supporting piece, and based on the sealing, the occurrence probability of the phenomenon that gas leaks into the hollow supporting piece and the pneumatic piston is reduced.
when the pneumatic piston pushes up the separable connecting piece to unlock, the pressure of the gas borne by the pneumatic piston is smaller and smaller, so that the hollow supporting piece rapidly rebounds to a state before unlocking under the action of elastic potential energy, namely, the state that the butt joint piece is fixed by the separable connecting piece. The unlocking and resetting operation method is simple and feasible, has short response time, does not generate pollution, and does not need to be provided with test equipment and inspection equipment matched with the unlocking and separating device in the use process, so that the production cost and the operation cost are reduced while the separating effect of the unlocking and separating device is ensured.
In an alternative way, as shown in fig. 1, the hollow support 2 has a second opening at one end near the second end, the unlocking separation device further comprises a first elastic member 8 and a second elastic member 9 for extending into the second through hole, the first elastic member 8 is provided on the surface of the air piston 3 near the second end, and the first end of the housing 1 is connected with the hollow support 2 through the second elastic member 9.
The outer diameter of the first elastic piece is smaller than or equal to the inner diameter of the second through hole, and the second elastic piece is sleeved on the hollow push rod. The inner diameter of the second through hole is not smaller than 7.5mm, and the first elastic piece can extend into the second through hole of the separable connecting piece and spring the butt joint piece into the first through hole by utilizing elastic force only when the outer diameter of the first elastic piece is smaller than or equal to 7.5 mm. Meanwhile, as the second elastic piece is sleeved on the hollow push rod, when gas in the hollow push rod leaks out from the rod, the hollow push rod can slide along the direction close to the second end under the action of the elastic force of the second elastic piece, so that the hollow support piece sleeved on the hollow push rod also slides along the direction close to the second end.
When the air source is in specific implementation, the air source is introduced into the hollow push rod, the hollow push rod slides towards the direction close to the second end under the action of air pressure and presses the pneumatic piston, and the hollow support piece slides towards the direction far away from the second end under the reaction force and is propped against the second limiting surface. The first elastic member is arranged to extend into the second through hole and is arranged on the surface of the pneumatic piston close to the second end part, so that the first elastic member is in a pressed state. In the process that the first limiting surface positioned on the inner side wall of the hollow supporting piece abuts against the end face, close to the pneumatic piston, of the separable connecting piece, the pneumatic piston pushes the separable connecting piece to be separated along the radial direction, at the moment, the first elastic piece in the extrusion state stretches into the second through hole of the separable connecting piece, and the abutting piece is sprung into the first through hole formed in the base by utilizing elastic force, so that unlocking of the unlocking and separating device is achieved. Because the first end of the shell is connected with the hollow supporting piece through the second elastic piece, the second elastic piece is sleeved on the hollow push rod, when gas in the hollow push rod leaks out of the rod, the hollow push rod can slide along the direction close to the second end under the action of the elastic force of the second elastic piece under the state of air pressure reduction, so that the hollow supporting piece sleeved on the hollow push rod also slides to the position before unlocking along the direction close to the second end, and the separable connecting piece in the hollow supporting piece is pushed to the position before unlocking, thereby realizing the resetting of the unlocking and separating device. It should be understood that, when the first elastic member and the second elastic member are springs, the effective number of turns and the stiffness of the first elastic member and the effective number of turns and the stiffness of the second elastic member may be adjusted according to practical situations, which are not limited herein.
When the unlocking and separating device is installed, the pneumatic piston and the hollow supporting piece can be connected in a sealing mode, the hollow supporting piece and the hollow push rod are connected in a sealing mode, then the hollow supporting piece is sleeved on the hollow push rod, the hollow supporting piece, the pneumatic piston and the hollow push rod are installed in the shell, the first elastic piece is arranged in the hollow supporting piece, the first end portion of the shell is connected with the hollow supporting piece through the second elastic piece, the separable connecting piece with the butt joint piece is installed in the hollow supporting piece, and finally the installation when the unlocking and separating device is installed can be completed through the base installed at the second end portion of the shell. It should be understood that the installation sequence of the unlocking and separating device provided in the embodiment of the present invention may be adjusted according to actual situations, which is not limited herein. Before the unlocking and separating device is installed, the parts are cleaned by absolute ethyl alcohol, and lubricating oil can be coated between the parts during installation, so that friction force between the parts is reduced, and the service life of the unlocking and separating device is prolonged.
The embodiment of the invention also provides an aircraft, which comprises the unlocking and separating device so as to ensure that the aircraft can perform separation operation within 20 ms.
In the above description, technical details of patterning, etching, and the like of each layer are not described in detail. Those skilled in the art will appreciate that layers, regions, etc. of the desired shape may be formed by a variety of techniques. In addition, to form the same structure, those skilled in the art can also devise methods that are not exactly the same as those described above. In addition, although the embodiments are described above separately, this does not mean that the measures in the embodiments cannot be used advantageously in combination.
The embodiments of the present invention are described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be made by those skilled in the art without departing from the scope of the invention, and such alternatives and modifications are intended to fall within the scope of the invention.
Claims (10)
1. An unlock separation device, comprising: the pneumatic device comprises a shell, a hollow supporting piece, a pneumatic piston and a separable connecting piece, wherein the hollow supporting piece, the pneumatic piston and the separable connecting piece are respectively arranged in the shell, the separable connecting piece and the pneumatic piston are arranged in the hollow supporting piece along the axial direction of the shell, the hollow supporting piece is in sliding connection with the inner side wall of the shell, and the pneumatic piston is in sliding connection with the inner side wall of the hollow supporting piece;
The shell is provided with a first end part and a second end part, the first end part is close to the pneumatic piston, the second end part is close to the separable connecting piece, the first end part is elastically connected with the hollow supporting piece, the second end part is provided with a first through hole for the butt joint piece to enter and exit the shell, one end, close to the second end part, of the hollow supporting piece is provided with a first opening, the separable connecting piece is provided with a second through hole, and the first through hole is communicated with the second through hole through the first opening.
2. The unlock separation device of claim 1, wherein a plurality of said separable connectors are circumferentially distributed within said hollow support.
3. the unlock separation device according to claim 1, wherein said abutment is an externally threaded abutment, and wherein said second through hole has an internal thread formed therein that mates with an external thread provided on said externally threaded abutment.
4. The unlock separation device of claim 1, wherein said hollow support has an inner sidewall having a first limit surface facing an end surface of said separable connector adjacent said pneumatic piston;
When the pneumatic piston is in an extrusion state, the pneumatic piston abuts against the separable connecting piece, and the first limiting surface is in contact with the end face of the pneumatic piston.
5. The unlock separation device of claim 1, wherein said housing has a spacing cavity therein for receiving said hollow support, said housing inner wall having a second spacing surface facing said second end, said spacing cavity being located in a region between said second spacing surface and said second end;
when the pneumatic piston is in an extrusion state, the surface of the hollow supporting piece facing the first end part abuts against the second limiting surface.
6. The unlock separation device according to claim 1, further comprising a hollow pushrod for communicating with a gas source, said hollow support slidably sleeved on said hollow pushrod, said hollow support being sealed with said hollow pushrod, said pneumatic piston being sealed with said hollow support.
7. the unlock release device of claim 6, wherein said hollow support member has a second opening at an end thereof adjacent said second end, said unlock release device further comprising a first elastic member and a second elastic member for extending into said second through hole, said first elastic member being provided on a surface of said air piston adjacent said second end, said first end of said housing being connected to said hollow support member by said second elastic member.
8. The unlocking and separating device according to claim 7, wherein the outer diameter of the first elastic member is smaller than or equal to the inner diameter of the second through hole, and the second elastic member is sleeved on the hollow push rod.
9. the unlock separation device of claim 1, wherein said housing has a base at said second end, said first through hole opening in said base.
10. an aircraft, characterized in that it comprises an unlocking separation device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410194851.8A CN117755529A (en) | 2024-02-22 | 2024-02-22 | unlocking and separating device and aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410194851.8A CN117755529A (en) | 2024-02-22 | 2024-02-22 | unlocking and separating device and aircraft |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383850A (en) * | 2018-09-04 | 2019-02-26 | 北京灵翼航宇科技有限公司 | A kind of non-firer's driver divides valve nut type tripper |
| CN110949693A (en) * | 2019-12-13 | 2020-04-03 | 航天科工火箭技术有限公司 | Pneumatic type connecting and unlocking device |
| CN112498751A (en) * | 2020-12-15 | 2021-03-16 | 航天科工火箭技术有限公司 | Connecting and unlocking device |
| CN113277124A (en) * | 2021-03-18 | 2021-08-20 | 东南大学 | Unlocking separation device based on split nut |
| CN115140320A (en) * | 2022-08-18 | 2022-10-04 | 北京中科宇航技术有限公司 | Pneumatic separation unlocking device and system |
| CN115180187A (en) * | 2022-08-31 | 2022-10-14 | 北京星河动力装备科技有限公司 | Separation device of carrier rocket and carrier rocket |
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- 2024-02-22 CN CN202410194851.8A patent/CN117755529A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383850A (en) * | 2018-09-04 | 2019-02-26 | 北京灵翼航宇科技有限公司 | A kind of non-firer's driver divides valve nut type tripper |
| CN110949693A (en) * | 2019-12-13 | 2020-04-03 | 航天科工火箭技术有限公司 | Pneumatic type connecting and unlocking device |
| CN112498751A (en) * | 2020-12-15 | 2021-03-16 | 航天科工火箭技术有限公司 | Connecting and unlocking device |
| CN113277124A (en) * | 2021-03-18 | 2021-08-20 | 东南大学 | Unlocking separation device based on split nut |
| CN115140320A (en) * | 2022-08-18 | 2022-10-04 | 北京中科宇航技术有限公司 | Pneumatic separation unlocking device and system |
| CN115180187A (en) * | 2022-08-31 | 2022-10-14 | 北京星河动力装备科技有限公司 | Separation device of carrier rocket and carrier rocket |
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