Passive locking-static releasing mechanism

Abstract

The invention provides a passive locking-static releasing mechanism which comprises the components of a storage disc which is used for storing the head of a locked object; the storage bucket is of a split structure and is used for storing and releasing the body part of the locked object; the bag belt lock is arranged on the outer side of the storage bucket and used for folding the storage bucket; the connecting rod mechanism is provided with long rods and short rods, each long rod is hinged to one split type structure, each short rod is hinged to the storage disc, and the connecting rod mechanism is used for locking the body part of the locked object; each elastic piece is connected to one split type structure, and the elastic pieces are used for driving the release mechanisms to be separated; the end part of each long rod is connected with one pressing plate, and the pressing plates are used for pressing the tail part of the locked object; and the limiting piece is arranged on the storage barrel, connected with the short rod and used for limiting the movement of the connecting rod mechanism. Passive locking and static releasing are achieved at the same time, and the state of a locked object is easy to control after the locked object is released.

Description

Technical Field

[0001] The present invention relates to the technical field of aerospace devices, and in particular to a passive locking-static release mechanism. Background Art

[0002] In the aerospace industry, locking and release mechanisms are the primary actuators for connecting or disconnecting two or more components. Currently, most locking and release mechanisms employ three main release mechanisms: 1) The locked object is dynamic after release, meaning it remains inside the mechanism when locked and ejects upon unlocking. This is typically achieved using an active drive or spring; 2) The locked object is static after release, meaning the mechanism initially locks the object, but unlocking only opens the mechanism. This is typically achieved using a pyrotechnic actuator; 3) The locked object is also static after release, and there's no need to lock the object initially. This is typically achieved using a combination of motors or solenoid valves.

[0003] However, in some application scenarios, the initial state must be free of locked objects, the lock must be held once during the task, and static release conditions must be met. Using a repetitive locking and release mechanism would require significant weight and power consumption, and the other two release methods are also unavailable. Therefore, existing commonly used release mechanisms do not meet these requirements.

[0004] To this end, the present invention provides a passive locking-static release mechanism that can statically release a locked object after completing a single, passive locking action. Summary of the Invention

[0005] In view of the defects in the prior art, the object of the present invention is to provide a locking and releasing mechanism that can statically release a locked object after completing a single, passive locking action.

[0006] The passive locking-static release mechanism provided by the present invention comprises: A storage tray for storing the head of the locked object; A storage bucket, which is a split structure, is used to store and release the body of the locked object; a strap lock, which is provided on the outside of the storage bucket and is used to close the storage bucket; a connecting rod mechanism, the number of which is the same as the number of the split structures of the storage bucket, comprising a long rod and a short rod, each of the long rods being hinged to a split structure, and each of the short rods being hinged to the storage tray, the connecting rod mechanism being used to lock the body of the locked object; elastic members, the number of which is the same as the number of the split structures of the storage bucket, each of the elastic members being connected to one of the split structures, and the elastic members being used to drive the release mechanism to separate; The number of the pressure plates is the same as that of the connecting rod mechanism, and each end of the long rod is connected to a pressure plate for pressing the tail of the locked object; A limiting member is provided on the storage barrel and connected to the short rod, and is used for limiting the movement of the connecting rod mechanism.

[0007] The passive locking process of the present invention is as follows: after the locked object enters the storage bucket, it overcomes the resistance of the limit member and presses the storage plate to move downward, thereby driving the connecting rod mechanism to move, so that the pressure plate at the end of the long rod presses the tail of the locked object to achieve a locking effect; the static release process is as follows: the strap lock is unlocked, and under the action of the elastic member, the storage bucket disintegrates and drives the connecting rod mechanism and the pressure plate installed thereon to move outward, realizing a static, single release function.

[0008] Preferably, the long rod and the short rod of the connecting rod mechanism are hinged.

[0009] Preferably, the limiting member is a stacked spring or a torsion spring.

[0010] Preferably, the shape of the pressure plate matches the shape of the locked object.

[0011] Preferably, the pressing plate is made of aluminum alloy.

[0012] Furthermore, a protrusion structure is provided on the long rod, and when the release mechanism is in a locked state, the protrusion structure is stuck in a groove on the outer wall of the locked object.

[0013] Preferably, the surfaces of the protrusion structure and the groove are coated with a MoS2 solid lubricating film.

[0014] Preferably, the elastic member is a spring, and the spring is arranged along the radial direction of the storage barrel.

[0015] Preferably, the split structure of the storage bucket, the connecting rod mechanism, the elastic member, and the pressure plate are provided in four groups in total and are evenly distributed along the circumference of the storage bucket.

[0016] Preferably, the storage tray and the storage bucket are made of aluminum alloy, and the connecting rod mechanism is made of titanium alloy.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The passive locking-static release mechanism of the present invention employs passive locking and maintains the locked state, eliminating the need for an active drive mechanism. It boasts a simple and compact structure, light weight, small size, resource conservation, and immunity to electromagnetic interference. It is suitable for applications requiring stringent quality, volume, and energy requirements, and operating in harsh environments. The invention also enables static release, making the state of the locked object easily controllable after release.

[0018] The passive locking-static release mechanism of the present invention adopts a multi-point clamping locking and releasing scheme, and has the advantages of being safe and reliable, having strong impact resistance, and having a stable working process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings: Figure 1 A front view of the initial state of the passive locking-static release mechanism according to an embodiment of the present invention; Figure 2 A top view of the initial state of the passive locking-static release mechanism according to an embodiment of the present invention; Figure 3 A front view of the passive locking-static release mechanism with a locked object in an initial state according to an embodiment of the present invention; Figure 4 A front view of a passive locking-static release mechanism locking an object according to an embodiment of the present invention; Figure 5 This is a front view of the passive locking-static release mechanism releasing a locked object according to an embodiment of the present invention.

[0020] Among them, 1-storage bucket, 2-storage tray, 3-bag lock, 4-connecting rod mechanism, 5-limiting part, 6-elastic part, 7-pressure plate. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0022] The present invention provides a passive locking-static release mechanism, which can statically release the locked object after completing a single passive locking action under the conditions that there is no locked object in the initial state, the task process is single, the passive locking is maintained and the static release is satisfied.

[0023] like Figure 1 and Figure 2As shown, the passive locking-static release mechanism of this embodiment includes a storage bucket 1, a storage tray 2, a strap lock 3, a connecting rod mechanism 4, a limiter 5, an elastic member 6 and a pressure plate 7. The storage tray 2 is located at the end of the entire mechanism, which can usually be described as the bottom, and is used to accommodate the head of the locked object. The storage bucket 1 is located on the body of the locked object. The storage bucket 1 is a split structure, and the storage and release of the locked object are achieved by the folding and separation of the storage bucket 1. A strap lock 3 is provided on the outside of the storage bucket 1, and each split structure of the storage bucket 1 is connected to an elastic member 6; when the strap lock 3 tightens the storage bucket 1, the storage bucket 1 is in a folded state, and elastic potential energy is stored on the elastic member 6; when the strap lock 3 is released, the split structure of the storage bucket 1 gradually separates under the elastic force of the elastic member 6, thereby achieving release. Each of the split structures of storage bucket 1 is connected to a linkage mechanism 4, which consists of a long rod and a short rod. The long rod is hinged to storage bucket 1 and has a pressure plate 7 mounted on one end. The short rod is hinged to storage tray 2 at one end, achieving linkage between storage tray 2 and pressure plate 7. A stopper 5 is mounted on storage tray 2 and acts on the short rod of linkage mechanism 4, maintaining the storage tray 2 and linkage mechanism 4 in their initial positions, thereby maintaining the mechanism in its initial state.

[0024] In this embodiment, the storage tub 1 is divided into four identical, split structures. Accordingly, there are four sets of connecting rod mechanisms 4, elastic members 6, and pressure plates 7. In other embodiments, the number of split structures in the storage tub 1 is not limited to four; it can also be two, three, five, or any combination greater than one. The storage tub 1 and storage tray 2 can be made of aluminum alloy.

[0025] The strap lock 3 is used to fold the storage barrel 1 from the initial state to the locked holding state, and is opened by igniting the cutter during static release.

[0026] The linkage mechanism 4 consists of two connecting rods, one long and one short, hinged at their ends. The other end of the short rod is hinged to the storage tray 2, while the long rod's body is hinged to a separate structure corresponding to the storage bucket 1. This linkage structure of the long and short rods allows the locked object to enter the storage bucket 1 and contact the storage tray 2, overcoming the resistance of the stopper 5 and forcing the storage tray 2 downward. This drives the linkage mechanism 4, causing the pressure plate 7 at one end of the long rod to press against the rear end of the locked object, securing it. The linkage mechanism 4 is constructed of titanium alloy, making it both lightweight and highly strong.

[0027] The middle portion of the long rod of the connecting rod mechanism 4 features a protrusion that engages with a groove on the outer surface of the object being locked. Once the object is in place, the protrusion snaps into the groove, securing it in place. In this embodiment, both the protrusion and the groove are coated with a solid MoS2 lubricant film, facilitating a smooth locking process.

[0028] A limiter 5 is provided at the hinge between the short rod of the connecting rod mechanism 4 and the storage tray 2. The storage tray 2 is kept in its initial position by the elastic force of the limiter 5. The limiter 5 can be a stacked spring or a torsion spring.

[0029] The sum of the short rod length of the connecting rod mechanism 4 and the installation radius of the storage tray 2 should be greater than the installation radius of the storage bucket 1. At the same time, the downward movement distance of the storage tray 2 should be limited to avoid the connecting rod mechanism 4 from passing the dead point position after the locked object is in place and locked.

[0030] The elastic member 6 is used to store elastic potential energy to achieve passive release of the storage bucket 1. The elastic member 6 can be a spring or other component. When it is located outside the storage bucket 1, it stores tension; when it is located inside the storage bucket 1, it stores pressure.

[0031] The pressing plate 7 is made of aluminum alloy and has an arc shape, which is used to adapt to the locked object so that the two can fit in shape after being locked.

[0032] The working principle of the passive locking-stationary release mechanism of the present invention is as follows: like Figure 3 As shown, in the initial state, under the action of the limit member 5, the storage tray 2 moves upward toward the storage barrel 1, and the pressure plate 7 is driven to open outward through the connecting rod mechanism 4, so that the locked object can enter smoothly; under the fixation of the strap lock 3, the storage barrel 1 overcomes the elastic force of the elastic member 6 toward the outside and is in a retracted state.

[0033] The passive locking and holding process is as follows: under the action of external force, the locked object enters the storage barrel 1 and presses the storage tray 2 downward, so that it overcomes the resistance of the limiter 5 and moves downward, driving the connecting rod mechanism 4 to move. After the locked object is in place, the protrusion structure on the long rod of the connecting rod mechanism 4 is stuck in the groove on the outer surface of the locked object to play a fixing role, and the pressure plate 7 will also close with the other end of the long rod to press the locked object. The state of passive locking is as follows Figure 4 shown.

[0034] The single static release process is as follows: after the cutter is ignited, the strap lock 3 used to tie the storage bucket 1 is unlocked, and under the action of the elastic member 6, the storage bucket 1 disintegrates and drives the connecting rod structure 4 and the pressure plate 7 on it to open outwards, realizing the static release function. The state after static release is as follows Figure 5 shown.

[0035] The passive locking and static release mechanism of the present invention employs passive locking and maintains the locked state, eliminating the need for an active drive mechanism. It boasts advantages such as a simple and compact structure, light weight, small size, resource conservation, and immunity to electromagnetic interference. Its static release design for the locked object allows for easy control of its released state, significantly reducing the difficulty of retrieving it. Therefore, the present invention is particularly suitable for locking and releasing mechanisms in space environments.

[0036] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A passive locking-static release mechanism, characterized in that: include: A storage tray for storing the head of the locked object; A storage bucket, which is a split structure, is used to store and release the body of the locked object; a strap lock, which is provided on the outside of the storage bucket and is used to close the storage bucket; a connecting rod mechanism, the number of which is the same as the number of the split structures of the storage bucket, comprising a long rod and a short rod, each of the long rods being hinged to a split structure, and each of the short rods being hinged to the storage tray, the connecting rod mechanism being used to lock the body of the locked object; elastic members, the number of which is the same as the number of the split structures of the storage bucket, each of which is connected to one of the split structures, and is used to drive the release mechanism to separate; The number of the pressure plates is the same as that of the connecting rod mechanism, and each end of the long rod is connected to a pressure plate for pressing the tail of the locked object; A limiting member is provided on the storage barrel and connected to the short rod, and is used for limiting the movement of the connecting rod mechanism.

2. The passive locking-static release mechanism according to claim 1, characterized in that: The long rod and the short rod of the connecting rod mechanism are hinged.

3. The passive locking-static release mechanism according to claim 1, characterized in that: The limiting member is a laminated spring or a torsion spring.

4. The passive locking-static release mechanism according to claim 1, characterized in that: The shape of the pressing plate matches the shape of the locked object.

5. The passive locking-static release mechanism according to claim 4, characterized in that: The pressing plate is made of aluminum alloy.

6. The passive locking-static release mechanism according to claim 1, characterized in that: The long rod is also provided with a protrusion structure, and when the release mechanism is in a locked state, the protrusion structure is stuck in a groove on the outer wall of the locked object.

7. The passive locking-static release mechanism according to claim 6, characterized in that: The surfaces of the protrusion structure and the groove are coated with a MoS2 solid lubricating film.

8. The passive locking-static release mechanism according to claim 1, characterized in that: The elastic member is a spring, and the spring is arranged along the radial direction of the receiving tub.

9. The passive locking-static release mechanism according to claim 1, characterized in that: The split structure of the storage bucket, the connecting rod mechanism, the elastic member, and the pressure plate are provided in four groups in total and are evenly distributed along the circumference of the storage bucket.

10. The passive locking-static release mechanism according to claim 1, characterized in that: The storage tray and the storage bucket are made of aluminum alloy, and the connecting rod mechanism is made of titanium alloy.

Images