High-reliability turning plate type locking and releasing device based on sequential release

Abstract

The invention provides a high-reliability turning plate type locking and releasing device based on sequential release, which comprises a locking seat, a turning plate is arranged at the top of the locking seat, the turning plate comprises a horizontal plate, a stepped shaft is arranged at the top of the horizontal plate, and a screw through hole is formed in the stepped shaft. The bottom of the vertical plate is connected with the left side of the top of the horizontal plate, and the top of the left side wall of the vertical plate is further connected with the right side wall of the fixing plate through a pin shaft. The locking device further comprises a vertically-arranged locking screw rod, the locking screw rod can penetrate through the screw rod penetrating hole and can be locked by the unlocking device, and the locking screw rod is further sequentially sleeved with an unlocking spring, an anti-falling cap and a pressing gasket from bottom to top. The pin shaft is further sleeved with a torsion spring, and the second torsion arm is pressed below the pressing gasket. And in a locking state, the torsion spring is not in contact with the turning plate and the second torsion arm limiting gasket. According to the invention, the sequential time sequence of the action of the torsion spring and the unlocking spring is specified through design, and the problem of clamping stagnation caused by mutual interference of rotation and release actions due to simultaneous work of the torsion spring and the unlocking spring is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of satellite-borne movable mechanisms, relates to locking and releasing, and specifically to a high-reliability flap-type locking and releasing device based on timed release. Background Art

[0002] Due to the severe vibration and impact in the satellite launch section, the onboard movable mechanism uses a locking device to fix the onboard movable mechanism during the launch phase. After reaching the predetermined orbit, the lock is released through the unlocking and releasing action to perform the mission.

[0003] Conventional technology uses one or more pyrotechnic locking and releasing devices or electromagnetic brakes for locking and unlocking the onboard movable mechanism. Pyrotechnic locking and releasing devices offer high separation reliability, rapid actuation, and a mature product. They use a screw to compress the locking and releasing interface to restrict the onboard movable mechanism's freedom of movement. Then, a pyrotechnic-based internal explosive detonation triggers a cutter to sever the compression bolt, allowing the onboard movable mechanism to rotate out of the locking interface and release.

[0004] Using pyrotechnics for detonation, the explosive shock overload at the locking point can reach over 2000g, posing a risk of failure or loss of precision for precision payloads. Unlocking pyrotechnics creates large vibrations and easily generates contaminants. Furthermore, using pyrotechnics can damage and contaminate electrical and optical components in high-precision rotation systems, impacting mission performance. Furthermore, pyrotechnic locking and release mechanisms are single-shot and cannot be reused. Multiple locking and release operations on the ground require multiple replacements of pyrotechnics, resulting in high costs and multiple disruptions to the locking interface, reducing the consistency of the on-orbit locking and release states.

[0005] The use of electromagnetic brakes requires electromagnetic adsorption of the satellite-borne movable mechanism in the launch state, and power-on unlocking after reaching the predetermined orbit. The locking force is not high and the reliability is low. In addition, the existence of the electromagnetic locking position also limits the range of motion of the movable mechanism, making it difficult to meet the normal working requirements of the turntable itself.

[0006] In addition, the fixed locking and releasing device will have interference at the fixed end within the rotation range, resulting in an area within the operating range of the onboard movable mechanism that cannot work, affecting the realization of mission indicators and the interface of the installation layout. Summary of the Invention

[0007] In view of the shortcomings of the prior art, one object of the present invention is to provide a high-reliability flap-type locking and releasing device based on timed release, so as to solve the technical problem in the prior art that it is difficult to achieve both improved reliability and reduced impact force during locking and releasing of the satellite-borne movable mechanism.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A high-reliability flap-type locking and releasing device based on timed release includes a locking seat with a fixed seat at the bottom, a flap is provided on the top of the locking seat, and the flap includes a horizontal plate. A stepped shaft is vertically integrated in the top center of the horizontal plate, and an axially penetrating screw hole is coaxially opened in the stepped shaft.

[0010] The flap also includes a vertical plate, the bottom of the vertical plate is integrally connected to the left side of the top of the horizontal plate, and the top of the left side wall of the vertical plate is also connected to the right side wall of the vertically arranged fixed plate by a pin shaft.

[0011] It also includes a vertically arranged locking screw, the axial lower end of the locking screw can pass through the screw through-hole and can be locked by the unlocker in the locking seat, and the axial upper end of the locking screw is also sequentially provided with an unlocking spring, an anti-drop cap and a compression gasket along the axial direction from bottom to top, the bottom of the anti-drop cap fits with the top of the stepped shaft, and the top of the compression gasket can also be compressed by the compression nut installed on the locking screw.

[0012] The pin shaft is arranged in the longitudinal direction, and a spring body of a torsion spring is sleeved on the pin shaft. The end of the first torsion arm of the torsion spring is clamped on the right side wall of the fixing plate.

[0013] A transversely penetrating torsion arm through-hole is also provided on the vertical plate near the top center, and a second torsion arm limiting gasket is installed in the torsion arm through-hole near the upper edge, and the lower edge of the second torsion arm limiting gasket does not contact the lower edge of the torsion arm through-hole, and the gap between the lower edge of the second torsion arm limiting gasket and the lower edge of the torsion arm through-hole is the second torsion arm passing gap.

[0014] The end of the second torsion arm of the torsion spring passes through the second torsion arm through gap and is pressed under the compression gasket.

[0015] In the locked state, the torsion spring is not in contact with the flap and the second torsion arm limiting washer.

[0016] The present invention also has the following technical features:

[0017] Specifically, the locking seat includes a cylindrical seat body, in which a double-layer stepped shaft-shaped unlocker mounting cavity is coaxially opened, and the unlocker mounting cavity includes a lower section unlocker mounting cavity near the bottom, and the lower section unlocker mounting cavity passes through the bottom of the seat body; the unlocker mounting cavity also includes an upper section unlocker mounting cavity near the top, and the upper section unlocker mounting cavity is arranged at the top of the lower section unlocker mounting cavity, and the upper section unlocker mounting cavity passes through the top of the seat body, and the diameter of the upper section unlocker mounting cavity is smaller than the diameter of the lower section unlocker mounting cavity.

[0018] Specifically, the unlocker is coaxially mounted in the unlocker mounting cavity, and the unlocker adopts a memory alloy unlocker; the memory alloy unlocker includes an unlocker lower section and an unlocker upper section from bottom to top along the axial direction, and the diameter of the unlocker upper section is smaller than the diameter of the unlocker lower section.

[0019] The upper section of the unlocker is provided with a locking cap, which can be separated from and locked to the upper section of the unlocker by turning on and off the power of the shape memory alloy wire. The locking cap is connected to the axial lower end of the locking screw.

[0020] A plurality of unlocker mounting seats are evenly and integrally provided along the circumferential direction on the top of the side wall of the lower section of the unlocker, and each unlocker mounting seat is provided with a vertically penetrating unlocker mounting hole.

[0021] The base body is also vertically provided with a plurality of unlocker fixing screw holes on the side wall of the unlocker upper mounting cavity section, and the unlocker fixing screw holes correspond to the unlocker mounting holes one by one. The unlocker can be fastened to the base body through the unlocker mounting holes and the unlocker fixing screw holes.

[0022] Specifically, the unlocker further includes a locking and separating cap, which can be locked and released by the unlocker.

[0023] The locking and separating cap is connected to the axial lower end of the locking screw.

[0024] Specifically, a plurality of radially penetrating seat body weight-reducing through holes are provided on the side wall of the seat body, and the plurality of seat body weight-reducing through holes are evenly distributed on the side wall of the seat body.

[0025] The bottom of the outer wall of the seat body is also integrated with multiple cabin mounting seats, which are evenly distributed along the circumference. Each cabin mounting seat is provided with a vertical cabin connection hole. The seat body can be connected to the satellite cabin body through the multiple cabin connection holes.

[0026] Specifically, the stepped shaft is a double-layer stepped shaft, and the stepped shaft includes an integrated first shaft segment and a second shaft segment from bottom to top along the axial direction, and the outer diameter of the second shaft segment is smaller than the outer diameter of the first shaft segment.

[0027] The screw rod through-hole axially passes through the first shaft segment and the second shaft segment.

[0028] The anti-drop cap comprises a cylindrical cap body, the inner cavity of the cap body is an unlocking spring installation cavity, and the bottom of the unlocking spring installation cavity is open.

[0029] The cap body can be sleeved on the second shaft segment.

[0030] An unlocking spring is coaxially sleeved in the unlocking spring installation cavity, and the unlocking spring can bounce the anti-dropping cap when the unlocker is unlocked and released.

[0031] The top of the cap body is also coaxially provided with a first through hole for the locking screw which is vertically penetrated, and the diameter of the first through hole for the locking screw is greater than or equal to the diameter of the locking screw.

[0032] Specifically, the top outer surface of the second shaft segment is a hemispherical concave surface with a central hole.

[0033] The inner diameter of the cap body is greater than or equal to the outer diameter of the second shaft segment.

[0034] The inner surface of the top of the cap body is a hemispherical convex surface with a central hole, and the hemispherical convex surface can fit with the hemispherical concave surface of the second shaft segment.

[0035] The inner diameter of the unlocking spring is larger than the outer diameter of the second shaft segment.

[0036] The outer diameter of the unlocking spring is smaller than the outer diameter of the first shaft segment.

[0037] Specifically, the compression gasket includes a circular shaft-shaped gasket body, on which a second through-hole for the locking screw is coaxially opened. The diameter of the second through-hole for the locking screw is greater than or equal to the diameter of the locking screw.

[0038] The gasket body is further provided with a gasket flat section along the axial direction on the left side of the second through hole of the locking screw.

[0039] The gasket body is also integrally provided with a second torsion arm limiting plate on the top of the gasket flat section.

[0040] In the locked state, the end of the second torsion arm can be pressed against the lower surface of the second torsion arm limiting plate.

[0041] In the locked state, the lower surface of the second torque arm limiting plate is vertically located between the lower edge of the second torque arm limiting gasket and the lower edge of the torque arm through hole.

[0042] Specifically, a plurality of fan-shaped fan ring grooves are further provided on the top of the horizontal plate, and the plurality of fan ring grooves are evenly distributed along the circumferential direction on the outer ring of the stepped shaft.

[0043] The bottom of the horizontal plate is also provided with a long groove.

[0044] The top outer surface of the locking seat is also integrated with a long boss, which can be fitly inserted into the interior of the long groove.

[0045] Specifically, the vertical plate is further provided with a plurality of transversely penetrating gasket fastening screw holes, and the plurality of gasket fastening screw holes are arranged on the front and rear sides of the torsion arm through-hole.

[0046] The center of the second torsion arm limiting gasket is clamped inside the torsion arm through-hole, and the edge of the second torsion arm limiting gasket can be fastened to the vertical plate through a plurality of gasket fastening screw holes.

[0047] The longitudinal front and rear ends of the top of the left side wall of the vertical plate are respectively integrated with a first pin shaft mounting front seat and a first pin shaft mounting rear seat from front to back.

[0048] The first pin shaft installation front seat is also provided with a first pin shaft front through hole which runs longitudinally through.

[0049] The first pin shaft installation rear seat is also provided with a first pin shaft rear through hole which runs longitudinally through.

[0050] Specifically, the maximum longitudinal width of the fixing plate is less than or equal to the longitudinal distance between the rear wall surface of the first pin shaft installation front seat and the front wall surface of the first pin shaft installation rear seat.

[0051] A second pin shaft mounting front seat and a second pin shaft mounting rear seat are respectively integrated at the longitudinal front and rear ends in the middle of the right side wall of the fixing plate.

[0052] The second pin shaft installation front seat is also provided with a second pin shaft front through hole which runs longitudinally through.

[0053] The second pin shaft installation rear seat is further provided with a second pin shaft rear through hole which runs longitudinally through.

[0054] The diameter of one end of the pin is larger than the diameter of the pin body.

[0055] The other end of the pin passes through the first pin rear through-hole, the second pin rear through-hole, the spring body, the second pin front through-hole and the first pin front through-hole in sequence from back to front along the longitudinal direction.

[0056] A pin nut is also installed on the other end of the pin, and the pin nut can install the pin on the fixed plate and the vertical plate.

[0057] A first torque arm end snap-in is also provided on the right side wall of the fixed plate. The shape of the first torque arm end snap-in is a longitudinally through groove. The first torque arm end snap-in is located vertically above the front through-hole of the second pin shaft. The end of the first torque arm can be snapped into the interior of the first torque arm end snap-in.

[0058] The fixing plate is also provided with a plurality of transversely penetrating fixing plate mounting holes, and the fixing plate can be mounted on the rotating mechanism through the plurality of fixing plate mounting holes.

[0059] Compared with the prior art, the present invention has the following technical effects:

[0060] (I) The device of the present invention directly connects the second torsion arm of the torsion spring to the second torsion arm limiting plate, rather than directly connecting it to the flap. The design stipulates the sequential release sequence of the unlocking spring and the torsion spring, that is, when the memory alloy unlocker is energized, the locking cap is disengaged, and the unlocking spring drives the locking screw and the anti-drop cap to spring up, thereby releasing the limit on the second torsion arm of the torsion spring; the second torsion arm of the torsion spring continues to flip up and contacts the lower edge of the second torsion arm limiting gasket, thereby driving the second torsion arm limiting gasket and the flap to flip up and rotate, which greatly improves the reliability of unlocking and releasing, and solves the problem of interference between the rotation and release actions caused by the simultaneous operation of the torsion spring and the unlocking spring, thereby causing jamming.

[0061] (II) The locking and releasing of the device in the present invention utilizes the characteristics of the memory alloy unlocker. Since it is driven by a shape memory alloy wire, the reliability of unlocking and releasing is further improved, and the problem of jamming is further avoided.

[0062] (III) The locking and releasing of the device in the present invention utilizes the characteristics of the memory alloy unlocker. Due to the use of shape memory alloy wire as the drive, the release impact is 1 to 2 orders of magnitude lower than that of the pyrotechnic device. Compared with traditional pyrotechnic devices, the impact force of unlocking is greatly reduced, and it can protect optical precision loads, etc.

[0063] (IV) The device of the present invention uses a hemispherical convex surface and a hemispherical concave surface for self-centering in terms of locking and alignment, thereby ensuring that the locking interface and the locking screw are coaxial; since there is no complex transmission mechanism, the present invention avoids the introduction of additional adjustment stress, ensures the safety of locking and releasing, and reduces the difficulty of adjustment.

[0064] (V) The device of the present invention is easy to process and easy to assemble, and uses metal materials that are easy to form. The device of the present invention can be quickly processed by fully utilizing existing casting processes and machining processes such as turning, milling, planing, and grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention when locked.

[0066] Figure 2 It is a structural schematic diagram of the flap in the present invention.

[0067] Figure 3 It is a structural schematic diagram of the bottom of the flip plate in the present invention.

[0068] Figure 4 It is a schematic cross-sectional structural diagram of the entire device of the present invention when locked.

[0069] Figure 5 It is a structural schematic diagram of the locking seat in the present invention.

[0070] Figure 6 It is a schematic cross-sectional structural diagram of the locking seat in the present invention.

[0071] Figure 7 It is a structural diagram of the unlocker in the present invention.

[0072] Figure 8 It is a structural schematic diagram of the anti-drop cap in the present invention.

[0073] Figure 9 It is a structural schematic diagram of the compression gasket in the present invention.

[0074] Figure 10 It is a structural schematic diagram of a flat cross section of the compression gasket in the present invention.

[0075] Figure 11 Schematic diagram of the structure of the fixed plate in the present invention.

[0076] Figure 12 It is a structural schematic diagram of the pin shaft in the present invention.

[0077] Figure 13 It is a structural schematic diagram of the unlocking spring in the present invention.

[0078] The meanings of the numbers in the figure are: 1-locking seat, 2-flip plate, 3-fixed plate, 4-pin shaft, 5-locking screw, 6-unlocker, 7-unlocking spring, 8-anti-drop cap, 9-pressure gasket, 10-pressure nut, 11-torsion spring, 12-pin shaft nut, 13-locking separation interface.

[0079] 101-base, 102-unlocker mounting cavity, 103-unlocker fixing screw hole, 104-base weight reduction through hole, 105-cabin mounting seat, 106-cabin connecting hole, 107-long boss.

[0080] 201-horizontal plate, 202-stepped shaft, 203-vertical plate, 204-second torsion arm limiting gasket.

[0081] 301-front seat for mounting the second pin shaft, 302-rear seat for mounting the second pin shaft, 303-front through-hole for the second pin shaft, 304-rear through-hole for the second pin shaft, 305-end bayonet of the first torsion arm, 306-mounting hole for the fixing plate.

[0082] 601-unlocker lower section, 602-unlocker upper section, 603-unlocker mounting seat, 604-unlocker mounting hole.

[0083] 801-cap body, 802-unlocking spring installation cavity, 803-first through-hole of locking screw, 804-hemispherical convex surface.

[0084] 901-gasket body, 902-second through-hole of locking screw, 903-flat section of gasket, 904-second torque arm limiting plate.

[0085] 1101 - spring body, 1102 - first torsion arm, 1103 - second torsion arm.

[0086] 10201-unlocker lower section installation cavity, 10202-unlocker upper section installation cavity.

[0087] 20101- fan ring groove, 20102- long groove.

[0088] 20201-first shaft section, 20202-second shaft section, 20203-hemispherical concave surface, 20204-screw perforation.

[0089] 20301-torsion arm through-hole, 20302-gasket fastening screw hole, 20303-first pin shaft installation front seat, 20304-first pin shaft installation rear seat, 20305-first pin shaft front through-hole, 20306-first pin shaft rear through-hole.

[0090] The specific contents of the present invention are further described in detail below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0091] It should be noted that, unless otherwise specified, all devices, components, and materials used in the present invention are those known in the prior art. For example, the memory alloy releaser uses a commonly used memory alloy releaser known in the art, and the multimeter uses a commonly used multimeter known in the art. The shape memory alloy wire uses a commonly used shape memory alloy wire known in the art. The onboard movable mechanism uses a commonly used onboard movable mechanism known in the art.

[0092] In the present invention, the OXYZ coordinate system is a three-dimensional rectangular coordinate system, wherein the X axis is horizontal and points to the right; the Y axis is vertical and points to the back; and the Z axis is vertical and points to the top.

[0093] In accordance with the above technical solution, specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0094] Example:

[0095] This embodiment provides a highly reliable flip-type locking and releasing device based on time sequence release, such as Figure 1As shown, it includes a locking seat 1 with a fixed seat at the bottom, a flap 2 is provided on the top of the locking seat 1, and the flap 2 includes a horizontal plate 201. A stepped shaft 202 is vertically integrated at the top center of the horizontal plate 201, and an axially penetrating screw through hole 20204 is coaxially opened in the stepped shaft 202.

[0096] The flap 2 also includes a vertical plate 203 , the bottom of which is integrally connected to the top left side of the horizontal plate 201 , and the top of the left side wall of the vertical plate 203 is also connected to the right side wall of the vertically arranged fixed plate 3 using a pin 4 .

[0097] It also includes a vertically arranged locking screw 5, the axial lower end of the locking screw 5 can pass through the screw through-hole 20204 and can be locked by the unlocker 6 in the locking seat 1, and the axial upper end of the locking screw 5 is also axially provided with an unlocking spring 7, an anti-slip cap 8 and a compression gasket 9 in sequence from bottom to top. The bottom of the anti-slip cap 8 fits with the top of the stepped shaft 202, and the top of the compression gasket 9 can also be compressed by the compression nut 10 installed on the locking screw 5.

[0098] The pin shaft 4 is arranged in the longitudinal direction. The spring body 1101 of the torsion spring 11 is also mounted on the pin shaft 4 . The end of the first torsion arm 1102 of the torsion spring 11 is clamped on the right side wall of the fixing plate 3 .

[0099] like Figure 2 and Figure 3 As shown, a transversely penetrating torsion arm through-hole 20301 is provided on the vertical plate 203 near the top center, and a second torsion arm limiting gasket 204 is installed near the upper edge in the torsion arm through-hole 20301. The lower edge of the second torsion arm limiting gasket 204 does not contact the lower edge of the torsion arm through-hole 20301, and the gap between the lower edge of the second torsion arm limiting gasket 204 and the lower edge of the torsion arm through-hole 20301 is the second torsion arm passing gap.

[0100] The end of the second torsion arm 1103 of the torsion spring 11 passes through the second torsion arm passing gap and is pressed under the compression gasket 9 .

[0101] In the locked state, the torsion spring 11 is not in contact with the flap 2 and the second torsion arm limiting washer 204 .

[0102] In this embodiment, the locking and separation interface 13 refers to the interface where the top outer surface of the locking seat 1 and the bottom outer surface of the flap 2 contact each other in the locked state.

[0103] In this embodiment, the locking seat 1 is integrally formed of stainless steel, the top outer surface of the seat body 101 of the locking seat 1 is the pressing surface, and the bottom outer surface of the seat body 101 of the locking seat 1 is the mounting surface. The stainless steel material is a commonly used stainless steel material known in the art.

[0104] In this embodiment, the material of the flap 2 is a titanium alloy material, and the titanium alloy material adopts a commonly used titanium alloy material known in the art.

[0105] In this embodiment, the structural diagram of the unlocking spring 7 is as follows: Figure 13 As shown, the unlocking spring 7 is a straight helical compression spring, which is a commonly used straight helical compression spring known in the art.

[0106] In this embodiment, the anti-drop cap 8 is made of stainless steel, which is a commonly used stainless steel material known in the art.

[0107] In this embodiment, the torsion spring 11 is an NIV type parallel double torsion spring, and the NIV type parallel double torsion spring adopts the commonly used NIV type parallel double torsion spring known in the art.

[0108] As a preferred solution of this embodiment, Figures 4 to 6 As shown, the locking seat 1 includes a cylindrical seat body 101, and a double-layer stepped shaft-shaped unlocker mounting cavity 102 is coaxially opened in the seat body 101. The unlocker mounting cavity 102 includes an unlocker lower section mounting cavity 10201 near the bottom, and the unlocker lower section mounting cavity 10201 passes through the bottom of the seat body 101; the unlocker mounting cavity 102 also includes an unlocker upper section mounting cavity 10202 near the top, and the unlocker upper section mounting cavity 10202 is arranged on the top of the unlocker lower section mounting cavity 10201, and the unlocker upper section mounting cavity 10202 passes through the top of the seat body 101, and the diameter of the unlocker upper section mounting cavity 10202 is smaller than the diameter of the unlocker lower section mounting cavity 10201.

[0109] As a preferred solution of this embodiment, Figure 7 As shown, the unlocker 6 is coaxially mounted in the unlocker mounting cavity 102 , and the unlocker 6 adopts a memory alloy unlocker; the memory alloy unlocker includes an unlocker lower section 601 and an unlocker upper section 602 axially from bottom to top, and the diameter of the unlocker upper section 602 is smaller than the diameter of the unlocker lower section 601 .

[0110] A locking cap is provided on the upper section 602 of the unlocker. The locking cap can be separated from and locked to the upper section 602 of the unlocker by turning on and off the power of the shape memory alloy wire. The locking cap is connected to the axial lower end of the locking screw 5.

[0111] A plurality of unlocker mounting seats 603 are evenly and integrally provided along the circumferential direction on the top of the side wall of the unlocker lower section 601 , and each unlocker mounting seat 603 is provided with a vertically penetrating unlocker mounting hole 604 .

[0112] The base body 101 also has multiple unlocker fixing screw holes 103 vertically opened on the side wall of the unlocker upper installation cavity 10202 section. The unlocker fixing screw holes 103 correspond one to one with the unlocker installation holes 604. The unlocker 6 can be fastened to the base body 101 through the unlocker installation holes 604 and the unlocker fixing screw holes 103.

[0113] As a preferred solution of this embodiment, the unlocker 6 further includes a locking and separating cap, which can be locked and released by the unlocker 6 .

[0114] The locking and separating cap is connected to the axial lower end of the locking screw 5 .

[0115] In this embodiment, the axial lower end of the locking screw 5 and the locking and separating cap are connected by threads.

[0116] As a preferred solution of this embodiment, a plurality of radially penetrating seat body weight-reducing through holes 104 are further provided on the side wall of the seat body 101 , and the plurality of seat body weight-reducing through holes 104 are evenly distributed on the side wall of the seat body 101 .

[0117] The bottom of the outer wall of the base body 101 is also integrated with multiple cabin mounting seats 105, which are evenly distributed along the circumference. Each cabin mounting seat 105 is provided with a vertical cabin connection hole 106, and the base body 101 can be connected to the satellite cabin through the multiple cabin connection holes 106.

[0118] In this embodiment, the satellite capsule body adopts a commonly used satellite capsule body known in the art.

[0119] As a preferred solution of this embodiment, the stepped shaft 202 is a double-layer stepped shaft. The stepped shaft 202 includes an integrated first shaft segment 20201 and a second shaft segment 20202 from bottom to top along the axial direction. The outer diameter of the second shaft segment 20202 is smaller than the outer diameter of the first shaft segment 20201.

[0120] The screw through hole 20204 axially passes through the first shaft segment 20201 and the second shaft segment 20202.

[0121] like Figure 8 As shown, the anti-drop cap 8 includes a cylindrical cap body 801 , the internal cavity of the cap body 801 is an unlocking spring installation cavity 802 , and the bottom of the unlocking spring installation cavity 802 is open.

[0122] The cap body 801 can be mounted on the second shaft segment 20202 .

[0123] An unlocking spring 7 is coaxially sleeved in the unlocking spring installation cavity 802 , and the unlocking spring 7 can bounce the anti-drop cap 8 when the unlocker 6 is unlocked and released.

[0124] A first locking screw through-hole 803 is coaxially formed on the top of the cap body 801 and extends vertically therethrough. The diameter of the first locking screw through-hole 803 is greater than or equal to the diameter of the locking screw 5 .

[0125] In this embodiment, in the locked state, the unlocking spring 7 is in a compressed state; in the unlocked and released state, the unlocking spring 7 is in a popped state.

[0126] As a preferred solution of this embodiment, the top outer surface of the second shaft segment 20202 is a hemispherical concave surface 20203 with a central hole.

[0127] The inner diameter of the cap body 801 is greater than or equal to the outer diameter of the second shaft segment 20202 .

[0128] The top inner surface of the cap body 801 is a hemispherical convex surface 804 with a central hole, and the hemispherical convex surface 804 can fit together with the hemispherical concave surface 20203 of the second shaft segment 20202.

[0129] The inner diameter of the unlocking spring 7 is larger than the outer diameter of the second shaft segment 20202.

[0130] The outer diameter of the unlocking spring 7 is smaller than the outer diameter of the first shaft segment 20201 .

[0131] As a preferred solution of this embodiment, Figure 9 and Figure 10 As shown, the compression gasket 9 includes a circular shaft-shaped gasket body 901 , on which a second locking screw through-hole 902 is coaxially opened. The diameter of the second locking screw through-hole 902 is greater than or equal to the diameter of the locking screw 5 .

[0132] A washer flat surface 903 is formed on the washer body 901 along the axial direction on the left side of the second through hole 902 of the locking screw.

[0133] The gasket body 901 is further integrated with a second torsion arm limiting plate 904 on the top of the gasket flat section 903 .

[0134] In the locked state, the end of the second torsion arm 1103 can be pressed against the lower surface of the second torsion arm limiting plate 904 .

[0135] In the locked state, the lower surface of the second torque arm limiting plate 904 is vertically located between the lower edge of the second torque arm limiting gasket 204 and the lower edge of the torque arm through hole 20301 .

[0136] In this embodiment, the gasket flat surface 903 can prevent the second torsion arm 1103 from sliding, so that the end of the second torsion arm 1103 can fully contact the gasket body 901 and press under the second torsion arm limiting gasket 204.

[0137] As a preferred solution of this embodiment, a plurality of fan-shaped fan ring grooves 20101 are further provided on the top of the horizontal plate 201 , and the plurality of fan ring grooves 20101 are evenly distributed along the circumferential direction on the outer ring of the stepped shaft 202 .

[0138] A long groove 20102 is also provided at the bottom of the horizontal plate 201 .

[0139] The top outer surface of the locking seat 1 is also integrated with a long boss 107, and the long boss 107 can be fit into the interior of the long groove 20102.

[0140] In this embodiment, when in the locked state, the elongated boss 107 can fit into the interior of the elongated groove 20102 , facilitating the compression installation between the horizontal plate 201 of the flap 2 and the base 101 .

[0141] As a preferred solution of this embodiment, a plurality of transversely penetrating gasket fastening screw holes 20302 are further provided on the vertical plate 203 , and the plurality of gasket fastening screw holes 20302 are arranged on the front and rear sides of the torsion arm through hole 20301 .

[0142] The center of the second torsion arm limiting gasket 204 is clamped inside the torsion arm through-hole 20301 , and the edge of the second torsion arm limiting gasket 204 can be fastened to the vertical plate 203 through a plurality of gasket fastening screw holes 20302 .

[0143] A first pin shaft mounting front seat 20303 and a first pin shaft mounting rear seat 20304 are respectively integrated at the longitudinal front and rear ends of the top of the left side wall of the vertical plate 203 from front to rear.

[0144] A longitudinally extending first pin shaft front through hole 20305 is also provided on the first pin shaft mounting front seat 20303 .

[0145] A first pin shaft rear through hole 20306 is further provided on the first pin shaft mounting rear seat 20304 and passes through the first pin shaft.

[0146] As a preferred solution of this embodiment, Figure 11 As shown, the maximum longitudinal width of the fixing plate 3 is less than or equal to the longitudinal distance between the rear wall surface of the first pin shaft mounting front seat 20303 and the front wall surface of the first pin shaft mounting rear seat 20304 .

[0147] A second pin shaft mounting front seat 301 and a second pin shaft mounting rear seat 302 are respectively integrated at the longitudinal front and rear ends in the middle of the right side wall of the fixing plate 3 .

[0148] The second pin shaft mounting front seat 301 is further provided with a second pin shaft front through hole 303 which runs longitudinally therethrough.

[0149] The second pin shaft mounting rear seat 302 is further provided with a second pin shaft rear through hole 304 which passes through the second pin shaft in a longitudinal direction.

[0150] like Figure 12 As shown, the diameter of one end of the pin 4 is larger than the diameter of the shaft body of the pin 4 .

[0151] The other end of the pin 4 passes through the first pin rear through-hole 20306 , the second pin rear through-hole 304 , the spring body 1101 , the second pin front through-hole 303 and the first pin front through-hole 20305 in sequence from rear to front along the longitudinal direction.

[0152] A pin nut 12 is also installed on the other end of the pin 4 , and the pin nut 12 can install the pin 4 on the fixed plate 3 and the vertical plate 203 .

[0153] A first torque arm end snap-in 305 is also provided on the right side wall of the fixing plate 3. The first torque arm end snap-in 305 is shaped like a longitudinally penetrating groove. The first torque arm end snap-in 305 is located vertically above the second pin front through-hole 303. The end of the first torque arm 1102 can be snapped into the interior of the first torque arm end snap-in 305.

[0154] The fixing plate 3 is further provided with a plurality of fixing plate mounting holes 306 which extend transversely therethrough, and the fixing plate 3 can be mounted on the rotating mechanism through the plurality of fixing plate mounting holes 306 .

[0155] In this embodiment, the rotating mechanism adopts a commonly used rotating mechanism known in the art.

[0156] The device in this embodiment is used to connect the rotating mechanism and the satellite cabin to perform locking and releasing functions; the basic assembly sequence is to first determine the position of the fixing plate 3, then determine the installation position of the locking seat 1 according to the range of motion of the flap 2 when unlocking and releasing, and then determine the position of the torsion spring 11 and the second torsion arm limiting gasket 204, and finally use the tightening nut 10 to tighten the tightening gasket 9, anti-drop cap 8, unlocking spring 7, horizontal plate 201, unlocker 6 and locking seat 1, and at the same time install the tightening nut 10 on the locking screw 5.

[0157] The device in this embodiment specifically includes the following steps when in use:

[0158] The device in this embodiment is locked and reset:

[0159] First, install the fixed plate 3 on the rotating mechanism, connect the flap 2 and the fixed plate 3 with a pin 4, install the locking seat 1 on the satellite cabin body, and install the unlocker 6 on the locking seat 1 and the unlocker 6 is in the initial state.

[0160] Second, the locking screw 5 and the compression nut 10 are installed, and the unlocker 6 applies a locking force to achieve compression of the compression gasket 9, thereby achieving pressure on the unlocking spring 7.

[0161] Third, the end of the first torsion arm 1102 of the torsion spring 11 is clamped in the first torsion arm end clamp 305 on the fixed plate 3, and the second torsion arm 1103 overcomes the torsion force and passes through the torsion arm through-hole 20301, and is pressed on the lower surface of the second torsion arm limit plate 904 of the compression gasket 9 through the locking screw 5.

[0162] Fourth, adjust the top outer surface of the locking seat 1 and the bottom outer surface of the flap 2 to ensure there is no gap.

[0163] Fifth, after the device in this embodiment is installed, ensure that when the unlocker 6 is locked, the unlocking spring 7 has no interference and can bounce normally.

[0164] Sixth, after the device in this embodiment is installed, ensure that the flap 2 and the locking seat 1 are in surface contact.

[0165] During the unlocking and releasing operation, the device in this embodiment:

[0166] Before unlocking, first use a multimeter to test the resistance of the unlocker 6 and record it, then connect the unlocker 6 to the unlocking power supply, apply current, and achieve unlocking.

[0167] At this time, the unlocker 6 releases the lock on the locking cap, that is, the unlocker 6 releases the lock on the locking screw 5, so that the locking screw 5 bounces up under the action of the unlocking spring 7; at the same time, the bounce of the unlocking spring 7 will drive the anti-drop cap 8 and the clamping gasket 9 to bounce up in turn. After the clamping gasket 9 bounces up, the second torsion arm limit plate 904 can release the pressure on the second torsion arm 1103.

[0168] Furthermore, the second torsion arm 1103 of the torsion spring 11 contacts the lower edge of the second torsion arm limiting washer 204, thereby driving the second torsion arm limiting washer 204 and the flap 2 to flip up, until the flap 2 touches the fixed plate 3 and the final unlocking operation is completed. At this time, the bottom outer surface of the horizontal plate 201 separates from the top outer surface of the locking seat 1, that is, the horizontal plate 201 and the locking seat 1 separate from the locking separation interface 13. After unlocking, test the resistance value of the unlocker 6 again and record it for comparison.

Claims

1. A high-reliability flap-type locking and releasing device based on timed release, characterized in that: The invention comprises a locking seat (1) with a fixed seat at the bottom, a flap (2) is provided on the top of the locking seat (1), the flap (2) comprises a horizontal plate (201), a stepped shaft (202) is vertically integrated at the top center of the horizontal plate (201), and an axially penetrating screw hole (20204) is coaxially provided in the stepped shaft (202); The flap (2) further comprises a vertical plate (203), the bottom of the vertical plate (203) being integrally connected to the left side of the top of the horizontal plate (201), and the top of the left side wall of the vertical plate (203) being connected to the right side wall of the vertically arranged fixed plate (3) by a pin (4); It also includes a locking screw (5) arranged vertically, the axial lower end of the locking screw (5) can pass through the screw through-hole (20204) and can be locked by the unlocking device (6) in the locking seat (1), and the axial upper end of the locking screw (5) is also provided with an unlocking spring (7), an anti-drop cap (8) and a compression gasket (9) in sequence from bottom to top along the axial direction, the bottom of the anti-drop cap (8) is in contact with the top of the stepped shaft (202), and the top of the compression gasket (9) can also be compressed by the compression nut (10) installed on the locking screw (5); The pin shaft (4) is arranged in the longitudinal direction, and a spring body (1101) of a torsion spring (11) is also mounted on the pin shaft (4), and the end of the first torsion arm (1102) of the torsion spring (11) is clamped on the right side wall of the fixing plate (3); The vertical plate (203) is also provided with a transversely penetrating torsion arm through-hole (20301) near the top center, and a second torsion arm limiting gasket (204) is installed near the upper edge of the torsion arm through-hole (20301), and the lower edge of the second torsion arm limiting gasket (204) does not contact the lower edge of the torsion arm through-hole (20301), and the gap between the lower edge of the second torsion arm limiting gasket (204) and the lower edge of the torsion arm through-hole (20301) is the second torsion arm passing gap; The end of the second torsion arm (1103) of the torsion spring (11) passes through the second torsion arm through the gap and is pressed under the compression gasket (9); In the locked state, the torsion spring (11) is not in contact with the flap (2) or the second torsion arm limiting washer (204).

2. The high-reliability flap-type locking and releasing device based on timed release according to claim 1 is characterized in that: The locking seat (1) includes a cylindrical seat body (101), a double-layer stepped shaft-shaped unlocker installation cavity (102) is coaxially opened in the seat body (101), the unlocker installation cavity (102) includes an unlocker lower section installation cavity (10201) near the bottom, and the unlocker lower section installation cavity (10201) passes through the bottom of the seat body (101); the unlocker installation cavity (102) also includes an unlocker upper section installation cavity (10202) near the top, the unlocker upper section installation cavity (10202) is arranged on the top of the unlocker lower section installation cavity (10201), the unlocker upper section installation cavity (10202) passes through the top of the seat body (101), and the diameter of the unlocker upper section installation cavity (10202) is smaller than the diameter of the unlocker lower section installation cavity (10201).

3. The high-reliability flap-type locking and releasing device based on timed release according to claim 2 is characterized in that: An unlocker (6) is coaxially mounted in the unlocker mounting cavity (102), and the unlocker (6) is a memory alloy unlocker; the memory alloy unlocker comprises an unlocker lower section (601) and an unlocker upper section (602) axially from bottom to top, and the diameter of the unlocker upper section (602) is smaller than the diameter of the unlocker lower section (601); The unlocker upper section (602) is provided with a locking cap, which can be separated from and locked to the unlocker upper section (602) by turning on and off the power of the shape memory alloy wire, and the locking cap is connected to the axial lower end of the locking screw (5); A plurality of unlocker mounting seats (603) are evenly and integrally arranged on the top of the side wall of the unlocker lower section (601) along the circumferential direction, and each unlocker mounting seat (603) is provided with a vertically penetrating unlocker mounting hole (604); The base body (101) is also provided with a plurality of unlocker fixing screw holes (103) vertically on the side wall of the unlocker upper section mounting cavity (10202), and the unlocker fixing screw holes (103) correspond one to one with the unlocker mounting holes (604). The unlocker (6) can be fastened to the base body (101) through the unlocker mounting holes (604) and the unlocker fixing screw holes (103).

4. The high-reliability flap-type locking and releasing device based on timed release according to claim 2, characterized in that: The side wall of the seat body (101) is also provided with a plurality of radially penetrating seat body weight-reducing through holes (104), and the plurality of seat body weight-reducing through holes (104) are evenly distributed on the side wall of the seat body (101); The bottom of the outer wall of the seat body (101) is also integrated with a plurality of cabin mounting seats (105), and the plurality of cabin mounting seats (105) are evenly distributed along the circumference. Each cabin mounting seat (105) is provided with a vertically penetrating cabin connection hole (106). The seat body (101) can be connected to the satellite cabin through the plurality of cabin connection holes (106).

5. The high-reliability flap-type locking and releasing device based on timed release according to claim 1 is characterized in that: The stepped shaft (202) is in the shape of a double-layer stepped shaft. The stepped shaft (202) includes, from bottom to top, an integrated first shaft section (20201) and a second shaft section (20202). The outer diameter of the second shaft section (20202) is smaller than the outer diameter of the first shaft section (20201). The screw through hole (20204) axially penetrates the first shaft section (20201) and the second shaft section (20202); The anti-drop cap (8) comprises a cylindrical cap body (801), the inner cavity of the cap body (801) is an unlocking spring installation cavity (802), and the bottom of the unlocking spring installation cavity (802) is open; The cap body (801) can be sleeved on the second shaft segment (20202); An unlocking spring (7) is coaxially mounted in the unlocking spring mounting cavity (802), and the unlocking spring (7) is capable of popping up the anti-drop cap (8) when the unlocker (6) is unlocked and released; The top of the cap body (801) is also coaxially provided with a first through hole (803) for the locking screw that passes vertically through the top of the cap body (801). The diameter of the first through hole (803) for the locking screw is greater than or equal to the diameter of the locking screw (5).

6. The high-reliability flap-type locking and releasing device based on timed release according to claim 5, characterized in that: The top outer surface of the second shaft segment (20202) is a hemispherical concave surface (20203) with a central hole; The inner diameter of the cap body (801) is greater than or equal to the outer diameter of the second shaft segment (20202); The top inner surface of the cap body (801) is a hemispherical convex surface (804) with a central hole, and the hemispherical convex surface (804) can fit with the hemispherical concave surface (20203) of the second shaft segment (20202); The inner diameter of the unlocking spring (7) is larger than the outer diameter of the second shaft section (20202). The outer diameter of the unlocking spring (7) is smaller than the outer diameter of the first shaft section (20201).

7. The high-reliability flap-type locking and releasing device based on timed release according to claim 6, characterized in that: The compression gasket (9) comprises a circular shaft-shaped gasket body (901), and a second through-hole (902) for the locking screw is coaxially provided on the gasket body (901), and the diameter of the second through-hole (902) for the locking screw is greater than or equal to the diameter of the locking screw (5); The gasket body (901) is provided with a gasket flat section (903) along the axial direction on the left side of the second through hole (902) of the locking screw; The gasket body (901) is further integrated with a second torsion arm limiting plate (904) on the top of the gasket flat section (903); In the locked state, the end of the second torsion arm (1103) can be pressed against the lower surface of the second torsion arm limiting plate (904); In the locked state, the lower surface of the second torque arm limiting plate (904) is located vertically between the lower edge of the second torque arm limiting gasket (204) and the lower edge of the torque arm through hole (20301).

8. The high-reliability flap-type locking and releasing device based on timed release according to claim 1, characterized in that: The top of the horizontal plate (201) is also provided with a plurality of fan-shaped fan ring grooves (20101), and the plurality of fan ring grooves (20101) are evenly distributed along the circumferential direction on the outer ring of the stepped shaft (202); The bottom of the horizontal plate (201) is also provided with a long groove (20102); The top outer surface of the locking seat (1) is also integrally provided with a long boss (107), and the long boss (107) can be fitted into the interior of the long groove (20102).

9. The high-reliability flap-type locking and releasing device based on timed release according to claim 1, characterized in that: The vertical plate (203) is further provided with a plurality of transversely penetrating gasket fastening screw holes (20302), and the plurality of gasket fastening screw holes (20302) are arranged on the front and rear sides of the torsion arm through hole (20301); The center of the second torsion arm limiting gasket (204) is clamped inside the torsion arm through-hole (20301), and the edge of the second torsion arm limiting gasket (204) can be fastened to the vertical plate (203) through a plurality of gasket fastening screw holes (20302); The longitudinal front and rear ends of the top of the left side wall of the vertical plate (203) are respectively integrated with a first pin shaft mounting front seat (20303) and a first pin shaft mounting rear seat (20304) from front to back; The first pin shaft mounting front seat (20303) is further provided with a first pin shaft front through hole (20305) which runs longitudinally therethrough; The first pin shaft mounting rear seat (20304) is also provided with a first pin shaft rear through hole (20306) which runs longitudinally therethrough.

10. The high-reliability flap-type locking and releasing device based on timed release according to claim 9, characterized in that: The maximum longitudinal width of the fixing plate (3) is less than or equal to the longitudinal distance between the rear wall surface of the first pin-mounted front seat (20303) and the front wall surface of the first pin-mounted rear seat (20304); A second pin shaft mounting front seat (301) and a second pin shaft mounting rear seat (302) are also integrally provided at the longitudinal front and rear ends of the middle of the right side wall of the fixing plate (3); The second pin shaft mounting front seat (301) is further provided with a second pin shaft front through hole (303) which runs longitudinally through the second pin shaft; The second pin shaft mounting rear seat (302) is further provided with a second pin shaft rear through hole (304) which passes through longitudinally; The diameter of one end of the pin shaft (4) is larger than the diameter of the shaft body of the pin shaft (4); The other end of the pin (4) passes through the first pin rear through-hole (20306), the second pin rear through-hole (304), the spring body (1101), the second pin front through-hole (303) and the first pin front through-hole (20305) in sequence from back to front in the longitudinal direction; A pin nut (12) is also installed on the other end of the pin (4), and the pin nut (12) can install the pin (4) on the fixed plate (3) and the vertical plate (203); A first torque arm end snap-in (305) is further provided on the right side wall of the fixing plate (3). The first torque arm end snap-in (305) is in the shape of a longitudinally penetrating groove. The first torque arm end snap-in (305) is located vertically above the second pin front through-hole (303). The end of the first torque arm (1102) can be snapped into the interior of the first torque arm end snap-in (305). The fixing plate (3) is also provided with a plurality of transversely penetrating fixing plate mounting holes (306), and the fixing plate (3) can be mounted on the rotating mechanism through the plurality of fixing plate mounting holes (306).

Images