Electric unlocking device

Abstract

The present invention belongs to the field of life-saving technology, and relates to an electric unlocking device, including an unlocking mechanism, a power spring assembly and a housing, wherein the unlocking mechanism further includes an electromagnet, a locking lever, a brake block assembly and a reset spring. The unlocking mechanism and the power spring assembly are both fixed on the housing, and the locking lever and the brake block assembly are interconnected and can move along a trajectory customized by the locking lever and its structure. When locking, the electromagnet is connected to the locking lever, and the brake block assembly is connected to the power spring assembly; when unlocking, the electromagnet is energized, the electromagnet is disconnected from the locking lever, and the brake block assembly and the power spring assembly are also disconnected accordingly, completing the unlocking work. The present invention adopts electromechanical control technology, can effectively control the output power and stroke, has high reliability, simple method and structure, is easy to implement, can be repeatedly used, and has low cost.

Description

Technical Field

[0001] The invention belongs to the technical field of life-saving, and relates to an electric unlocking device, in particular to an electromechanical control technology, which can effectively control output power and travel. Background Art

[0002] Electric unlocking devices are widely used in many fields such as industry, aviation, and shipbuilding. According to different control principles, unlocking control devices can be divided into mechanical, electromechanical, and electronic types.

[0003] Traditional mechanical brake control has relatively simple functions and low safety, while electronic brake control has low reliability.

[0004] At present, there is no electromechanical electric unlocking device similar to the present invention at home and abroad. It is mainly used in the field of aviation life-saving technology and can also be promoted and applied to other equipment and systems with higher reliability and safety requirements. Summary of the invention

[0005] Aiming at the higher reliability and safety requirements of aviation life-saving equipment, the present invention proposes an electric unlocking device from a unique professional perspective.

[0006] The electric unlocking device of the present invention can improve the reliability and safety of equipment, and has stable operation, convenient implementation and good economic benefits.

[0007] Technical Solution

[0008] An electric unlocking device includes an unlocking mechanism 1, a power spring assembly 3 and a housing 2. The unlocking mechanism 1 further includes an electromagnet 4, a locking lever 5, a brake block assembly 6 and a reset spring 7. The unlocking mechanism 1 and the power spring assembly 3 are both fixed to the housing 2. The locking lever 5 and the brake block assembly 6 are interconnected and can move along a track customized by the locking lever 5. When locking, the electromagnet 4 is connected to the locking lever 5, and the brake block assembly 6 is connected to the power spring assembly 3; when unlocking, the electromagnet 4 is energized, the electromagnet 4 is disconnected from the locking lever 5, and the brake block assembly 6 and the power spring assembly 3 are also disconnected accordingly, completing the unlocking work.

[0009] The power spring assembly 3 is the power output component of the electric unlocking device, and the power output is controlled by the unlocking mechanism 1; the brake block assembly 6 in the unlocking mechanism 1 directly controls the movement of the power spring assembly 3, and is connected to the locking lever 5, and is restricted by the movement trajectory customized by the structure of the locking lever 5; the locking lever 5 is then connected to the electromagnet 4, and the electromagnet 4 locks it.

[0010] It also includes a return spring 7, one end of which is connected to the brake block assembly 6, and the other end is connected to the housing 2. The spring force of the return spring 7 is to perform the return work only after the power spring assembly 3 releases the power.

[0011] The spring force of the return spring 7 is much smaller than the spring force of the power spring assembly 3 .

[0012] The locking lever 5 and the brake shoe assembly 6 are interconnected and can move along a track customized by the structure of the locking lever 5 , wherein the structure is specifically an arc groove, and the movement track of the brake shoe assembly 6 is constrained by the arc groove.

[0013] The brake block assembly 6 is provided with a unidirectionally movable brake shoe. When locked, the end protrusion of the spring assembly 3 can pass through the brake shoe. After passing through, the end protrusion of the spring assembly 3 is constrained by the brake shoe and cannot return.

[0014] The spring assembly 3 comprises a coaxial inner spring and an outer spring, and the combined elastic force of the inner spring and the outer spring is greater than 275N.

[0015] The movable axis of the electromagnet 4 is perpendicular to the plane of the locking lever 5 . When energized, the movable axis of the electromagnet 4 is attracted and retracted inwardly, thereby releasing the constraint on the locking lever 5 .

[0016] Technical Effects

[0017] 1. The present invention designs an electric unlocking device by adopting an electromechanical control scheme, which has higher reliability and safety than electronic equipment and better controllability than traditional mechanical equipment;

[0018] 2. This device uses the lever principle and innovatively designs a folding combined lever, so that a smaller electromagnet suction force can brake a larger spring force, while also compressing the volume of the device and achieving the goal of miniaturization;

[0019] 3. This device uses a reset spring. After the main force is released, the combined lever of the mechanism can be retracted and reset through a smaller reset spring force, which is convenient for repeated use of the equipment;

[0020] 4. This device is currently mainly used for parachute opening and ejection equipment unlocking and starting in the field of airborne airdrop and ejection lifesaving. It can be further expanded to open equipment such as aircraft doors and windows, as well as the recovery and delivery of small retractable equipment;

[0021] 5. The device works stably, is easy to implement, reliable and safe, can be used repeatedly, and has good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present invention, locked state;

[0023] Figure 2 It is the unlocking working diagram of the present invention, unlocking state;

[0024] Figure 3 It is a schematic diagram of the unlocking mechanism of the present invention before unlocking.

[0025] Figure 4 It is a schematic diagram of the unlocking mechanism of the present invention after unlocking.

[0026] In the figure: 1 - unlocking mechanism, 2 - housing, 3 - power spring assembly, 4 - electromagnet, 5 - locking lever, 6 - brake block assembly, 7 - return spring. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with embodiments. The following are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] This section is an embodiment of the present invention, which is used to explain and illustrate the technical solution of the present invention.

[0029] An electric unlocking device includes an unlocking mechanism 1, a power spring assembly 3 and a housing 2. The unlocking mechanism 1 includes an electromagnet 4, a locking lever 5, a brake block assembly 6 and a reset spring 7. The power spring assembly is a power output component of the electric unlocking device, which controls the output of power through the unlocking mechanism; the brake block assembly 6 in the unlocking mechanism 1 directly controls the movement of the power spring assembly 3, and is connected to the locking lever 5, and is limited by the movement trajectory customized by the structure of the locking lever 5; the locking lever 5 is further connected to the electromagnet 4, and the electromagnet locks it.

[0030] The working principle of the electric unlocking device is that the power spring assembly is locked after being compressed by external force, and the unlocking mechanism locks the power spring assembly through the brake block assembly under the joint action of the locking lever and the electromagnet. At this time, the electric unlocking device is in a waiting state; when the electric unlocking device receives a command from the control system, the electromagnet is energized and attracted, and the locking lever is unlocked. At the same time, the brake block assembly also releases the locking state of the power spring assembly. The power spring assembly instantly outputs the corresponding power and stroke, drives its corresponding load, and completes the unlocking control work of the electric unlocking device; after the power of the power spring assembly is released, the reset spring will pull the unlocking mechanism back to the initial state, waiting for the power spring assembly to be compressed and locked again.

[0031] The electric unlocking device comprises an unlocking mechanism (1), a power spring assembly (3) and a housing (2), wherein the unlocking mechanism (1) further comprises an electromagnet (4), a locking lever (5), a brake block assembly (6) and a reset spring (7). The unlocking mechanism (1) and the power spring assembly (3) are both fixed on the housing (2), the locking lever (5) and the brake block assembly (6) are interconnected and can move along a track customized by the locking lever (5). When locking, the electromagnet (4) is connected to the locking lever (5), and the brake block assembly (6) is connected to the power spring assembly (3); when unlocking, the electromagnet (4) is energized, the electromagnet (4) is disconnected from the locking lever (5), and the brake block assembly (6) and the power spring assembly (3) are also disconnected accordingly, thereby completing the unlocking operation. The power spring assembly (3) is a power output component of the electric unlocking device, which controls the output of power through the unlocking mechanism (1); the brake block assembly (6) in the unlocking mechanism (1) directly controls the movement of the power spring assembly (3), and is connected to the locking lever (5), and is restricted by the movement trajectory customized by the structure of the locking lever (5); the locking lever (5) is further connected to the electromagnet (4), and the electromagnet (4) locks it. It also includes a reset spring (7), one end of the reset spring (7) is connected to the brake block assembly (6), and the other end is connected to the housing (2), and the spring force of the reset spring (7) is reset only after the power spring assembly (3) releases power. The spring force of the reset spring (7) is much smaller than the spring force of the power spring assembly (3). The locking lever (5) and the brake block assembly (6) are interconnected and can move through the trajectory customized by the structure of the locking lever (5), and the structure is specifically an arc groove, and the movement trajectory of the brake block assembly (6) is restricted by the arc groove. The brake block assembly (6) is provided with a unidirectionally movable brake pad. When locked, the end protrusion of the spring assembly (3) can pass through the brake pad. After passing through, the end protrusion of the spring assembly (3) is constrained by the brake pad and cannot return. The spring assembly (3) includes a coaxial inner spring and an outer spring, and the combined elastic force of the inner spring and the outer spring is greater than 275N. The movable axis of the electromagnet 4 is perpendicular to the plane of the locking lever (5). When powered on, the movable axis of the electromagnet 4 is attracted and retracted inward, thereby releasing the constraint on the locking lever (5).

[0032] Application examples of this embodiment:

[0033] Application scenario 1: The ejection seat program controller used for aircraft pilot ejection and life-saving tasks adopts electromechanical control technology to effectively control the output power and stroke.

[0034] Application scenario 2: Used as a parachute opening controller, it adopts electromechanical control technology to effectively control the output power and stroke.

[0035] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless defined as here. The specific implementation methods described above further explain the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric unlocking device, characterized in that: The invention comprises an unlocking mechanism (1), a power spring assembly (3) and a housing (2), wherein the unlocking mechanism (1) further comprises an electromagnet (4), a locking lever (5), a brake block assembly (6) and a reset spring (7); the unlocking mechanism (1) and the power spring assembly (3) are both fixed on the housing (2), the locking lever (5) and the brake block assembly (6) are interconnected and can move along a trajectory customized by the locking lever (5); when locking, the electromagnet (4) is connected to the locking lever (5), and the brake block assembly (6) is connected to the power spring assembly (3); when unlocking, the electromagnet (4) is energized, the electromagnet (4) is disconnected from the locking lever (5), and the brake block assembly (6) and the power spring assembly (3) are also disconnected accordingly, thus completing the unlocking operation; the brake block assembly (6) in the unlocking mechanism (1) directly controls the movement of the power spring assembly (3), and is also connected to the locking lever (5) and is affected by the locking lever (5). The locking lever (5) is connected to the electromagnet (4), and the electromagnet (4) locks it. The locking lever (5) and the brake block assembly (6) are interconnected and can move along the track customized by the locking lever (5). The structure is specifically an arc groove, and the movement track of the brake block assembly (6) is constrained by the arc groove. The brake block assembly (6) is provided with a unidirectionally movable brake pad. When locked, the end protrusion of the spring assembly (3) can pass through the brake pad. After passing through, the end protrusion of the spring assembly (3) is constrained by the brake pad and cannot return. It also includes a reset spring (7), one end of the reset spring (7) is connected to the brake block assembly (6), and the other end is connected to the housing (2). The spring force of the reset spring (7) is reset only after the power spring assembly (3) releases power. The spring force of the reset spring (7) is much smaller than the spring force of the power spring assembly (3).

2. An electric unlocking device according to claim 1, characterized in that: The spring assembly (3) comprises a coaxial inner spring and an outer spring, and the combined elastic force of the inner spring and the outer spring is greater than 275N.

3. An electric unlocking device according to claim 2, characterized in that: The movable axis of the electromagnet (4) and the plane of the locking lever (5) are perpendicular to each other. When power is turned on, the movable axis of the electromagnet (4) is attracted and retracted inwardly, thereby releasing the constraint on the locking lever (5).

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