A repeatable unlockable locking release mechanism

Abstract

The application relates to a repeatedly-unlocked locking release mechanism which comprises a lock sleeve, an outer sleeve, a sheath, a supporting seat, a positioning sleeve, a striker sleeve and a first spring, the first spring is arranged between the sheath and the striker sleeve, a first through hole is arranged on the outer side wall of the positioning sleeve, a first steel ball is arranged in the first through hole, a driving assembly is arranged in the positioning sleeve, a pin is arranged on the striker sleeve, a limiting assembly is arranged on the supporting seat, and an electromagnetic unlocking assembly is arranged on the supporting seat. The application has the advantages that electromagnetic driving is adopted to replace the one-time explosion release of the existing pyrotechnics, the use process is stable and reliable, additional disturbance to the connecting equipment is avoided, repeated use can be realized, the detection and test of the product are facilitated, and large-load release can be triggered by small-energy input.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of locking release mechanism that can be repeatedly unlocked. BACKGROUND

[0002] In the use of barrel system, there is often an action of "opening barrel cover". Currently, the connection of barrel cover is generally locked by one-time pyrotechnics. When the locking release mechanism is unlocked, explosive bolts are usually used to achieve this. This unlocking release method can only achieve one unlocking task and cannot be reused. It has high cost and the use of explosive bolts is unstable, which can cause additional disturbance to the connected equipment. It is not suitable for detection and testing in conventional places. SUMMARY

[0003] The present application aims to solve the problem of high cost caused by the fact that existing explosive bolts can only achieve one unlocking task and cannot be reused. It proposes a locking release mechanism that can be repeatedly unlocked. By using an electromagnetic unlocking assembly to drive the release, it replaces the existing one-time explosive release and achieves reusable, which is convenient for product detection and testing.

[0004] To solve the above technical problems, the present application is achieved by the following technical scheme: a locking release mechanism that can be repeatedly unlocked, comprising a lock sleeve, an outer sleeve, a protective sleeve, a support seat, a positioning sleeve, a striker and a first spring. The outer sleeve is arranged on the support seat, and the positioning sleeve is arranged on the support seat. The protective sleeve, striker and first spring are all arranged on the outer side wall of the positioning sleeve, and the first spring is arranged between the protective sleeve and the striker. A first through hole is provided on the outer side wall of the positioning sleeve, and a first steel ball is arranged in the first through hole. A drive assembly is arranged in the positioning sleeve to drive the first steel ball to push into the lock sleeve. A pin is arranged on the striker and connected with the drive assembly. A limiting assembly is arranged on the support seat to limit the movement of the striker. An electromagnetic unlocking assembly is arranged on the support seat and connected with the limiting assembly. When locking, the protective sleeve removes the radial constraint on the first steel ball under the action of the lock sleeve. When unlocking, the limiting assembly removes the axial constraint on the striker by the action of the electromagnetic unlocking assembly, and the striker drives the drive assembly to remove the constraint on the lock sleeve. A second spring is arranged between the striker and the support seat.

[0005] Preferably, the drive assembly includes a front jacking rod and a third spring. One end of the third spring abuts against the front jacking rod, and the other end of the third spring abuts against the support seat. A connecting section is arranged on the front jacking rod and abuts against the first steel ball. An arc chamfer is arranged between the connecting section and the front jacking rod.

[0006] Preferably, a connecting sleeve is arranged on the pin. One end of the pin passes through the striker, positioning sleeve and front jacking rod and is connected with the connecting sleeve.

[0007] Preferably, the impact sleeve and the positioning sleeve are provided with waist-shaped holes, and the front top rod is provided with a connecting through hole matched with the pin.

[0008] Preferably, the limiting assembly comprises a second steel ball, a rear top rod, an armature and a fourth spring, the support base is provided with a second through hole matched with the second steel ball, one end of the rear top rod is connected with the armature, the other end of the rear top rod abuts against the second steel ball, the unlocking assembly is connected with the armature, and the fourth spring is arranged on the armature and between the armature and the electromagnetic unlocking assembly.

[0009] Preferably, the inner side wall of the impact sleeve is provided with a step abutting against the second steel ball.

[0010] Preferably, the electromagnetic unlocking assembly comprises a rear cover, a magnet sleeve, a yoke, a wire packing bushing and a lacquered wire, the rear cover is fixedly connected to the support base, the magnet sleeve is arranged on the yoke, the wire packing bushing is arranged on the outer side wall of the yoke, and the lacquered wire is arranged on the outer side wall of the wire packing bushing.

[0011] Preferably, the yoke is provided with a pull rod, one end of the pull rod is fixedly connected to the armature through screw threads, and the other end of the pull rod is arranged outside the rear cover after penetrating through the yoke.

[0012] Preferably, the outer sleeve is provided with a limiting bushing which restricts the axial movement of the bushing.

[0013] Preferably, the outer side wall of the lock sleeve is provided with a nut, and the inner side wall of the lock sleeve is provided with a locking groove.

[0014] In summary, the application has the following advantages: the first steel ball is limited in the first through hole of the positioning sleeve by the bushing, when the lock sleeve is locked, the bushing can move downward under the action of the lock sleeve to release the radial constraint of the bushing on the first steel ball, when the first steel ball is in the same horizontal plane as the locking groove of the lock sleeve, the first steel ball is pushed into the lock sleeve by the driving assembly, thereby the axial movement of the first steel ball is limited, the lock sleeve is locked in place, the overall locking process is simple, the first steel ball can be accurately pushed into the lock sleeve, the movement of the impact sleeve is limited by the limiting assembly, thereby the overall locking quality is further improved, in addition, the electromagnetic unlocking assembly connected with the limiting assembly is arranged on the support base, when unlocking, the limiting assembly can release the axial constraint of the impact sleeve under the action of the electromagnetic unlocking assembly, the impact sleeve drives the driving assembly to release the constraint of the first steel ball on the lock sleeve, since the first spring is arranged between the bushing and the impact sleeve, the lock sleeve can be pushed away from the mechanism under the elastic force of the first spring, thereby the unlocking and releasing are completed, the electromagnetic drive is adopted to replace the one-time explosion release of the existing explosive device, the use process is stable and reliable, no additional disturbance is caused to the connected equipment, not only the repeated use can be realized, but also the detection and test of the product are facilitated, and the small energy input can trigger the release of large load. BRIEF DESCRIPTION OF DRAWINGS

[0015] The application will be further described below with reference to the drawings:

[0016] Figure 1 Structure diagram of the locking release mechanism of the application;

[0017] Figure 2 Structure diagram of the initial state of the application;

[0018] Figure 3 Structure diagram of the front top rod of the application;

[0019] Figure 4 Structure diagram of the application in the locked state;

[0020] Figure 5 Structure diagram of the application in the unlocking instant state.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1 lock sleeve, 11 nut, 12 locking groove, 2 outer sleeve, 21 clamping ring, 3 protective sleeve, 4 support seat, 41 second through hole, 5 positioning sleeve, 51 first through hole, 52 first steel ball, 53 drive assembly, 531 front top rod, 532 third spring, 533 connecting section, 534 circular arc chamfer, 6 impact sleeve, 61 pin, 62 connecting sleeve, 63 step, 64 waist-shaped hole, 7 first spring, 8 limiting assembly, 81 second steel ball, 82 rear top rod, 83 armature, 84 fourth spring, 9 electromagnetic unlocking assembly, 91 rear cover, 92 magnet sleeve, 93 yoke, 94 wire packing bushing, 95 enameled wire, 96 pull rod, 10 second spring. DETAILED DESCRIPTION

[0023] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a repeatable unlocking locking release mechanism, including a lock sleeve 1, an outer sleeve 2, a sheath 3, a support seat 4, a positioning sleeve 5, a striker 6 and a first spring 7, the outer wall of the lock sleeve 1 is provided with a nut 11, the inner wall of the lock sleeve 1 is provided with a locking groove 12, the outer sleeve 2 is arranged on the support seat 4, the positioning sleeve 5 is arranged on the support seat 4, the sheath 3, the striker 6 and the first spring 7 are all arranged on the outer wall of the positioning sleeve 5, and the first spring 7 is arranged between the sheath 3 and the striker 6, the outer wall of the positioning sleeve 5 is provided with a first through hole 51, the first through hole 51 is provided with a first steel ball 52, the positioning sleeve 5 is provided with a driving assembly 53 for driving the first steel ball 52 to push into the lock sleeve 1, the striker 6 is provided with a pin 61 connected with the driving assembly 53, the support seat 4 is provided with a limiting assembly 8 for limiting the movement of the striker 6, and the support seat 4 is provided with an electromagnetic unlocking assembly 9 connected with the limiting assembly 8, when locking, the sheath 3 is released from the radial constraint of the first steel ball 52 under the action of the lock sleeve 1, when unlocking, the limiting assembly 8 is released from the axial constraint of the striker 6 by the action of the electromagnetic unlocking assembly, the striker 6 drives the driving assembly 53 to release the constraint of the first steel ball 52 to the lock sleeve 1, and the second spring is arranged between the striker 6 and the support seat 4. The outer sleeve 2 is provided with a limiting assembly 21 for limiting the axial movement of the sheath 3, and in the embodiment, the limiting assembly 21 is fixedly connected with the outer sleeve 2 through threads, which is convenient to install and disassemble, reliable in connection and can effectively limit the axial movement of the sheath 3.

[0024] The first steel ball 52 is limited in the first through hole 51 of the positioning sleeve 5 by the sheath 3, when the lock sleeve 1 is locked, the sheath 3 can move downward under the action of the lock sleeve 1 to release the radial constraint of the first steel ball 52, when the first steel ball 52 and the locking groove 12 of the lock sleeve 1 are in the same horizontal plane, the first steel ball 52 is pushed into the lock sleeve 1 by the action force of the driving assembly 53, so that the first steel ball 52 completes the axial movement limitation of the lock sleeve 1, the lock sleeve 1 is locked in place, the whole locking process is simple, and the first steel ball 52 can be accurately pushed into the lock sleeve 1, the movement of the striker 6 is limited by the limiting assembly 8, so that the whole mechanism has a two-level nested locking structure, which further improves the overall locking quality, in addition, by arranging the electromagnetic unlocking assembly connected with the limiting assembly 8 on the support seat 4, when unlocking, the limiting assembly 8 can release the axial constraint of the striker 6 by the action of the electromagnetic unlocking assembly, the striker 6 drives the driving assembly 53 to release the constraint of the first steel ball 52 to the lock sleeve 1, since the first spring 7 is arranged between the sheath 3 and the striker 6, the lock sleeve 1 can be pushed away from the mechanism under the elastic force of the first spring 7, so as to complete the unlocking release, the electromagnetic drive is adopted to replace the existing one-time explosion release of the initiating explosive device, which is stable and reliable in use process and will not cause additional disturbance to the connected equipment, which not only can realize repeated use and facilitate product detection and test, but also can realize small energy input triggering large load release.

[0025] The driving assembly 53 comprises a front top rod 531 and a third spring 532, the third spring 532 is in a compressed working state in an initial state, one end of the third spring 532 abuts against the front top rod 531, the other end of the third spring 532 abuts against the support seat 4, the front top rod 531 is provided with a connecting section 533 abutting against the first steel ball 52, and an arc chamfer 534 is arranged between the connecting section 533 and the front top rod 531. The driving assembly 53 is arranged in the structure of the front top rod 531 and the third spring 532. Since the third spring 532 is in a compressed working state, when the first steel ball 52 is in the same horizontal plane as the locking groove 12, the third spring 532 releases the spring force, the first steel ball 52 is pushed into the locking groove 12 by the front top rod 531. At this time, the front top rod 531 abuts against the first steel ball 52, the axial movement of the first steel ball 52 to the lock sleeve 1 is limited, and the lock is in place.

[0026] The pin 61 is provided with a connecting sleeve 62, one end of the pin 61 passes through the striker sleeve 6, the positioning sleeve 5 and the front top rod 531 respectively and is connected with the connecting sleeve 62, so as to ensure the fixing quality of the pin 61 and prevent the pin 61 from shaking. The striker sleeve 6 and the positioning sleeve 5 are both provided with a waist-shaped hole 64, and the front top rod 531 is provided with a connecting through hole matched with the pin 61, so as to facilitate the installation of the pin 61 and effectively limit the movement displacement of the front top rod 531.

[0027] The limiting assembly 8 comprises a second steel ball 81, a rear top rod 82, an armature 83 and a fourth spring 84, the support seat 4 is provided with a second through hole 41 matched with the second steel ball 81, one end of the rear top rod 82 is connected with the armature 83, the other end of the rear top rod 82 abuts against the second steel ball 81, the unlocking assembly is connected with the armature 83, and the fourth spring 84 is arranged on the armature 83 and located between the armature and the electromagnetic unlocking assembly. The limiting assembly 8 is arranged in the structure of the second steel ball 81, the rear top rod 82, the armature 83 and the fourth spring 84. In use, since the support seat 4 is provided with the second through hole 41, under the action of the fourth spring 84, the rear top rod 82 can abut against the second steel ball 81, the second steel ball 81 protrudes out of the outer circle of the support seat 4, then the striker sleeve 6 abuts against the second steel ball 81, the movement of the striker sleeve 6 is limited, the unlocking assembly is connected with the armature 83, therefore, the armature 83 is pulled to the rear top rod 82 under the action of the unlocking assembly, when the rear top rod 82 loses the radial constraint on the second steel ball 81, the second steel ball 81 can be retracted into the outer circle of the support seat 4, and the axial constraint of the second steel ball 81 on the striker sleeve 6 is released. The inner side wall of the striker sleeve 6 is provided with a step 63 abutting against the second steel ball 81, so as to increase the contact area of the striker sleeve 6 and the second steel ball 81 and ensure the axial constraint of the second steel ball 81 on the striker sleeve 6.

[0028] The electromagnetic unlocking assembly 9 comprises a rear cover 91, a magnet sleeve 92, a yoke 93, a wire package bushing 94 and an enameled wire 95, the rear cover is fixedly connected on the support seat 4, the magnet sleeve is arranged on the yoke, in the embodiment, the rear cover is fixedly connected on the support seat 4 through screw thread, the magnet sleeve 92 is fixedly connected with the yoke 93 through edge rolling, the wire package bushing is arranged on the outer side wall of the yoke, and the enameled wire is arranged on the outer side wall of the wire package bushing; in use, the enameled wire is powered to generate a magnetic field, the armature 83 is attracted to the yoke under the action of the magnetic field, the rear top rod 82 moves together with the armature 83, and the fourth spring 84 is compressed to store energy, when the rear top rod 82 loses the radial constraint on the second steel ball 81, the second steel ball 81 is retracted into the second through hole 41 of the support seat 4, and the axial constraint of the second steel ball 81 on the impact sleeve 6 is released; under the action of the elastic force of the first spring 7, the impact sleeve 6 moves towards the support seat 4, the impact sleeve 6 drives the pin 61 to move together, the pin 61 drives the front top rod 531 to move together, when the connecting section 533 of the front top rod 531 moves below the first steel ball 52, the radial constraint of the front top rod 531 on the first steel ball 52 is released, the first steel ball 52 is retracted into the first through hole 51 of the positioning sleeve 5, and the locking constraint of the first steel ball 52 on the lock sleeve 1 is released; under the indirect action of the spring force of the first spring 7, the lock sleeve 1 is pushed away from the mechanism, so that the unlocking and releasing are completed.

[0029] The yoke is provided with a pull rod 96, one end of the pull rod is fixedly connected on the armature 83 through screw thread, and the other end of the pull rod is arranged outside the rear cover after penetrating through the yoke; in use, the manual unlocking mechanism is arranged as the pull rod, and the pull rod is pulled; since one end of the pull rod is fixedly connected on the armature 83, the pull rod can pull the armature 83 to move, the armature 83 drives the rear top rod 82 to move synchronously, and the fourth spring 84 is compressed to store energy; when the rear top rod 82 loses the radial constraint on the second steel ball 81, the second steel ball 81 is retracted into the second through hole 41 of the support seat 4, and the axial constraint of the second steel ball 81 on the impact sleeve 6 is released; under the action of the elastic force of the second spring, the impact sleeve 6 moves towards the support seat 4, the impact sleeve 6 drives the pin 61 to move together, the pin 61 drives the front top rod 531 to move together, when the connecting section 533 of the front top rod 531 moves below the first steel ball 52, the radial constraint of the front top rod 531 on the first steel ball 52 is released, the first steel ball 52 is retracted into the first through hole 51 of the positioning sleeve 5, and the locking constraint of the first steel ball 52 on the lock sleeve 1 is released; under the indirect action of the spring force of the first spring 7, the lock sleeve 1 is pushed away from the mechanism, so that the unlocking and releasing are completed.

[0030] After the mechanism is released and the power is turned off or the pulling force is removed, the mechanism will automatically reset. After the lock sleeve 1 is pushed away from the mechanism, the first spring 7 pushes the sheath 3 to cover the front steel ball, and returns to the original long relaxed state. At this time, the elastic force of the first spring 7 is smaller than that of the second spring, and the second spring pushes the impact sleeve 6 to move to the initial position. Under the action of the fourth spring 84, the armature 83 is separated from the yoke, and the armature 83 pushes the rear top rod 82 to push the rear second steel ball 81 to protrude out of the outer circle of the support seat 4 again, so as to restore the constraint on the axial movement of the impact sleeve 6. At this time, all the parts in the mechanism are completely reset to the initial state.

[0031] The above merely describes specific embodiments of the present application, but the technical features of the present application are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present application are encompassed in the patent scope of the present application.

Claims

1. A repeatable unlockable locking release mechanism characterized by: The application relates to a lock device, which comprises a lock sleeve, an outer sleeve, a sheath, a supporting base, a positioning sleeve, a striker and a first spring, wherein the outer sleeve is arranged on the supporting base, the positioning sleeve is arranged on the supporting base, the sheath, the striker and the first spring are arranged on the outer sidewall of the positioning sleeve, the first spring is arranged between the sheath and the striker, a first through hole is arranged on the outer sidewall of the positioning sleeve, a first steel ball is arranged in the first through hole, a driving assembly for driving the first steel ball to push into the lock sleeve is arranged in the positioning sleeve, a pin is arranged on the striker and connected with the driving assembly, a limiting assembly for limiting the movement of the striker is arranged on the supporting base, and an electromagnetic unlocking assembly connected with the limiting assembly is arranged on the supporting base; when the lock is locked, the sheath removes the radial constraint on the first steel ball under the action of the lock sleeve; when the lock is unlocked, the limiting assembly removes the axial constraint on the striker under the action of the electromagnetic unlocking assembly, the striker drives the driving assembly to remove the constraint on the lock sleeve, and a second spring is arranged between the striker and the supporting base. The driving assembly comprises a front jacking rod and a third spring, one end of the third spring is abutted with the front jacking rod, the other end of the third spring is abutted with the supporting base, a connecting section abutted with the first steel ball is arranged on the front jacking rod, and a circular arc chamfer is arranged between the connecting section and the front jacking rod. A connecting sleeve is arranged on the pin, and one end of the pin is connected with the connecting sleeve after penetrating through the striker, the positioning sleeve and the front jacking rod. Waist-shaped holes are arranged on the striker and the positioning sleeve, and a connecting through hole matched with the pin is arranged on the front jacking rod. The limiting assembly comprises a second steel ball, a rear jacking rod, an armature and a fourth spring, a second through hole matched with the second steel ball is arranged on the supporting base, one end of the rear jacking rod is connected with the armature, the other end of the rear jacking rod is abutted with the second steel ball, the electromagnetic unlocking assembly is connected with the armature, and the fourth spring is arranged on the armature and between the armature and the electromagnetic unlocking assembly. A step abutted with the second steel ball is arranged on the inner sidewall of the striker. A limiting ring limiting the axial movement of the sheath is arranged on the outer sleeve. A nut is arranged on the outer sidewall of the lock sleeve, and a locking groove is arranged on the inner sidewall of the lock sleeve.

2. A repeatable unlockable locking release mechanism according to claim 1, wherein: The electromagnetic unlocking assembly comprises a rear cover, a magnet sleeve, a yoke, a wire packing sleeve and an enameled wire, the rear cover is fixedly connected with the supporting base, the magnet sleeve is arranged on the yoke, the wire packing sleeve is arranged on the outer sidewall of the yoke, and the enameled wire is arranged on the outer sidewall of the wire packing sleeve.

3. A repeatable unlockable locking release mechanism according to claim 2, wherein: A pull rod is arranged on the yoke, one end of the pull rod is fixedly connected with the armature through screw threads, and the other end of the pull rod is arranged outside the rear cover after penetrating through the yoke.

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