Working method of universal two-way self-locking fastener device

Abstract

The present invention provides a working method of a universal bidirectional self-locking fastener device. When fixing, the magnetic poles at the bottom of the electromagnet and the tail of the magnetic rod are in the same direction, thereby pushing the magnetic rod to slide out of the guide hole, so that the connecting device in the middle of the magnetic rod slides from one end of the groove to the other end; at the same time, the retractable fixing device at the top of the magnetic rod is retracted from the pop-up state; the current is disconnected, the retractable fixing device pops up and is inserted into the preset groove of the passive docking object; after the fastener device is fixed, the current switch on the other side is turned on and the above steps are repeated. When disassembling, the current direction is opposite to the current direction during assembly, the magnetic poles at the bottom of the electromagnet are opposite to the magnetic poles at the tail of the magnetic rod, and at the same time, two ultrasonic motors control the retractable fixing device to retract and the magnetic rod slides back; the current is disconnected, and the retractable fixing device pops up to prevent the magnetic rod from sliding out. The present invention can replace the bracket or bolt, which is convenient for disassembly and can meet the strength requirements.

Description

Technical Field

[0001] The invention relates to the field of fastening devices, in particular to a working method of a universal bidirectional self-locking fastener device. Background Art

[0002] The two main drawbacks of traditional bolts are that they are difficult to load and unload and have poor strength. For example, an airplane requires a lot of bolts, and some of them are located in very tricky locations, leaving little room for movement, which causes great inconvenience for assembly and maintenance. As for poor strength, taking the connection between the aircraft skin and the main structure as an example, sometimes the distance between the skin and the main structure of the aircraft is large, and bolts are usually used in conjunction with aluminum tubes or aluminum grooves to meet the strength requirements, which increases the weight of the aircraft. Summary of the invention

[0003] In order to solve the problems of the prior art, the present invention provides a working method of a universal bidirectional self-locking fastener device, which can replace a bracket or a bolt. The two ends can be connected to a passive docking object in either an embedded or non-embedded manner according to the actual thickness and strength of the connected objects. It is also suitable for a large gap between two passive docking objects, which can be easily disassembled and meet the strength requirements.

[0004] The present invention provides a universal bidirectional self-locking fastener device, comprising a main electromagnetic device, a cap baffle device system, and a magnetic rod device system;

[0005] The main electromagnetic device comprises a main control shaft, with an electromagnet on each side of the main control shaft, and the current direction inside the electromagnet is controlled by an independent motor; a plurality of magnetic rod moving grooves are arranged on both end surfaces of the main control shaft;

[0006] The cap baffle device system includes two caps distributed at both ends of the main control shaft and fixedly connected to the main control shaft, a guide rail distributed along the axial direction is arranged inside the cap, and the motor controls the baffle to move along the guide rail; guide holes corresponding to the number of magnetic rod moving grooves on the two end surfaces of the main control shaft are arranged below the cap;

[0007] The magnetic rod device system includes magnetic rods corresponding to the number of magnetic rod moving grooves, the middle part of the magnetic rod is connected to the magnetic rod moving groove through a magnetic rod connecting device and slides along the magnetic rod moving groove, an ultrasonic motor is installed inside the magnetic rod, and a retractable fixing device controlled by the ultrasonic motor is arranged at the outer end of the magnetic rod; when the magnetic rod contracts, the retractable fixing device is inserted into the magnetic rod moving groove to fix the magnetic rod, and when the magnetic rod extends outward, it passes through the guide hole of the cap; when the baffle in the cap baffle device slides toward the main electromagnetic device, it is inserted into the inner side of the magnetic rod to prevent the magnetic rod from contracting.

[0008] Furthermore, the magnetic conductive materials such as the housing of the device can be made of corrosion-resistant soft magnetic alloy with high magnetic permeability, or it can be used as a coating material to coat the surface of other base materials to reduce magnetic leakage.

[0009] Furthermore, the maximum and minimum heights, diameters and thicknesses of the cap and the electromagnet core must be calculated and determined according to different needs. The coil diameter and height ratio must be determined repeatedly to make the coil produce a reasonable magnetic circuit that meets the needs to reduce magnetic leakage.

[0010] Furthermore, the electromagnets on both sides of the self-locking fastener device are controlled by different switches and do not interfere with each other.

[0011] Furthermore, the ultrasonic motor for controlling the movement of the retractable fixture and the baffle is not subject to electromagnetic interference, has a light weight and high control accuracy.

[0012] The present invention also provides a working method of a universal bidirectional self-locking fastener device, including a fixing process and a disassembly process;

[0013] When fixing, the main control system turns on the power switch of the electromagnet on one side, current is passed through the coil, and the electromagnet generates a magnetic field; at this time, the bottom of the electromagnet is in the same direction as the magnetic pole at the tail of the magnetic rod, thereby pushing the magnetic rod to slide out of the guide hole, so that the connecting device in the middle of the magnetic rod slides from one end of the groove to the other end; at the same time, the built-in ultrasonic motor is energized to control the retractable fixing device at the top of the magnetic rod to be retracted from the pop-up state; the ultrasonic motor at the top of the cap is energized to control the baffle to fall from the top along the guide rail to prevent the magnetic rod from sliding back; the current is disconnected, the retractable fixing device pops out and is inserted into the preset groove of the passive docking object; after the fastener device is fixed, turn on the current switch on the other side and repeat the above steps;

[0014] When disassembling, the main control system turns on the current switch on one side. The current direction at this time is opposite to that during assembly. The magnetic pole at the bottom of the electromagnet is opposite to the magnetic pole at the tail of the magnetic rod. At the same time, two ultrasonic motors control the retractable fixing device to retract and the baffle to raise, so that the magnetic rod slides back; when the current is disconnected, the retractable fixing device pops out to prevent the magnetic rod from sliding out.

[0015] The beneficial effects of the present invention are:

[0016] 1. The current directions of the electromagnets on both sides of the self-locking device can be controlled separately. This design facilitates the assembly and disassembly of two passive docking objects.

[0017] 2. The two ends of the locking fastener device can be connected to the passive docking object in either an embedded or non-embedded manner according to the actual thickness and strength of the connected objects. It is also suitable for a large gap between two passive docking objects.

[0018] 3. The structure of the present invention is simple, the main material is high in strength and light in weight, and can meet basic strength requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is an exploded view of a universal two-way self-locking fastener device;

[0021] Figure 2 It is a cross-sectional view of the interior of a universal two-way self-locking fastener device for one-way opening and closing;

[0022] Figure 3 Connect the view for the embedded assembly;

[0023] Figure 4 Connect views for non-inserted assemblies.

[0024] In the figure, 1-cap, 2-baffle, 3-movable buckle, 4-magnetic rod, 5-magnetic rod connecting device, 6-main body control shaft, 7-magnetic rod moving slot, 8-electromagnet, 9-retractable fixing device, 10-guide hole 11-baffle moving slot, 12-guide rail. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the 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.

[0026] The present invention provides a universal two-way self-locking fastener device, such as Figure 1 and Figure 2 As shown, it includes a main electromagnetic device, a cap baffle device system, and a magnetic rod device system.

[0027] The main electromagnetic device comprises a main control shaft 6, with an electromagnet 8 on each side of the main control shaft, and the current direction inside the electromagnet is controlled by an independent motor; a plurality of magnetic rod moving slots 7 are arranged on both end surfaces of the main control shaft;

[0028] The cap baffle device system comprises two caps 1 which are distributed at both ends of the main control shaft and are fixedly connected to the main control shaft. A guide rail 12 and a baffle moving groove 11 which are distributed along the axial direction are arranged inside the cap. The motor controls the baffle 2 to move along the guide rail 12 and the baffle moving groove 11. A movable buckle 3 for fixing the baffle 2 is arranged on the moving groove 11. Guide holes 10 corresponding to the number of magnetic rod moving grooves on the two end surfaces of the main control shaft are arranged below the cap.

[0029] The magnetic rod device system includes magnetic rods 4 corresponding to the number of magnetic rod moving grooves. The middle part of the magnetic rod is connected to the magnetic rod moving groove through a magnetic rod connecting device 5 and slides along the magnetic rod moving groove 7. An ultrasonic motor is installed inside the magnetic rod, and a retractable fixing device 9 controlled by the ultrasonic motor is provided at the outer end of the magnetic rod; when the magnetic rod contracts, the retractable fixing device is inserted into the magnetic rod moving groove to fix the magnetic rod, and when the magnetic rod extends outward, it passes through the guide hole of the cap; when the baffle in the cap baffle device slides toward the main electromagnetic device, it is inserted into the inner side of the magnetic rod to prevent the magnetic rod from contracting.

[0030] Furthermore, the magnetic conductive materials such as the housing of the device can be made of corrosion-resistant soft magnetic alloy with high magnetic permeability, or it can be used as a coating material to coat the surface of other base materials to reduce magnetic leakage.

[0031] Furthermore, the maximum and minimum heights, diameters and thicknesses of the cap and the electromagnet core must be calculated and determined according to different needs. The coil diameter and height ratio must be determined repeatedly to make the coil produce a reasonable magnetic circuit that meets the needs to reduce magnetic leakage.

[0032] Furthermore, the electromagnets on both sides of the self-locking fastener device are controlled by different switches and do not interfere with each other.

[0033] Furthermore, the ultrasonic motor for controlling the movement of the retractable fixture and the baffle is not subject to electromagnetic interference, has a light weight and high control accuracy.

[0034] The present invention also provides a working method of a universal bidirectional self-locking fastener device, including a fixing process and a disassembly process;

[0035] When fixing, the main control system turns on the power switch of the electromagnet on one side, current is passed through the coil, and the electromagnet generates a magnetic field; at this time, the bottom of the electromagnet is in the same direction as the magnetic pole at the tail of the magnetic rod, thereby pushing the magnetic rod to slide out of the guide hole, so that the connecting device in the middle of the magnetic rod slides from one end of the groove to the other end; at the same time, the built-in ultrasonic motor is energized to control the retractable fixing device at the top of the magnetic rod to be retracted from the pop-up state; the ultrasonic motor at the top of the cap is energized to control the baffle to fall from the top along the guide rail to prevent the magnetic rod from sliding back; the current is disconnected, the retractable fixing device pops out and is inserted into the preset groove of the passive docking object; after the fastener device is fixed, turn on the current switch on the other side and repeat the above steps;

[0036] When disassembling, the main control system turns on the current switch on one side. The current direction at this time is opposite to that during assembly. The magnetic pole at the bottom of the electromagnet is opposite to the magnetic pole at the tail of the magnetic rod. At the same time, two ultrasonic motors control the retractable fixing device to retract and the baffle to raise, so that the magnetic rod slides back; when the current is disconnected, the retractable fixing device pops out to prevent the magnetic rod from sliding out.

[0037] The two ends of the locking fastener device can be inserted into the passive docking object according to the actual thickness and strength of the connected object (such as Figure 3 As shown) can also be connected without inserting (as shown Figure 4 As shown in the figure), it is also applicable to the case where there is a large gap between two passive docking objects.

[0038] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, the above is only a preferred embodiment of the present invention. Since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field is within the technical scope disclosed by the present invention. For ordinary technicians in the technical field, changes or replacements that can be easily thought of should be covered within the protection scope of the present invention without departing from the principle of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A working method of a universal bidirectional self-locking fastener device, Features: A universal two-way self-locking fastener device is used, which includes a main electromagnetic device, a cap baffle device system, and a magnetic rod device system; The main electromagnetic device comprises a main control shaft, with an electromagnet on each side of the main control shaft, and the current direction inside the electromagnet is controlled by an independent motor; a plurality of magnetic rod moving grooves are arranged on both end surfaces of the main control shaft; The cap baffle device system includes two caps distributed at both ends of the main control shaft and fixedly connected to the main control shaft, a guide rail distributed along the axial direction is arranged inside the cap, and the motor controls the baffle to move along the guide rail; guide holes corresponding to the number of magnetic rod moving grooves on the two end surfaces of the main control shaft are arranged below the cap; The magnetic rod device system comprises magnetic rods corresponding to the number of magnetic rod moving slots, the middle part of the magnetic rod is connected to the magnetic rod moving slot through a magnetic rod connecting device and slides along the magnetic rod moving slot, an ultrasonic motor is installed inside the magnetic rod, and a retractable fixing device controlled by the ultrasonic motor is arranged at the outer end of the magnetic rod; when the magnetic rod contracts, the retractable fixing device is inserted into the magnetic rod moving slot to fix the magnetic rod, and when the magnetic rod extends outward, it passes through the guide hole of the cap; when the baffle in the cap baffle device slides toward the main electromagnetic device, it is inserted into the inner side of the magnetic rod to prevent the magnetic rod from contracting; The working method includes the fixing process and the disassembly process; When fixing, the main control system turns on the power switch of the electromagnet on one side, current is passed through the coil, and the electromagnet generates a magnetic field; at this time, the bottom of the electromagnet is in the same direction as the magnetic pole at the tail of the magnetic rod, thereby pushing the magnetic rod to slide out of the guide hole, so that the connecting device in the middle of the magnetic rod slides from one end of the groove to the other end; at the same time, the built-in ultrasonic motor is energized to control the retractable fixing device at the top of the magnetic rod to be retracted from the pop-up state; the ultrasonic motor at the top of the cap is energized to control the baffle to fall from the top along the guide rail to prevent the magnetic rod from sliding back; the current is disconnected, the retractable fixing device pops out and is inserted into the preset groove of the passive docking object; after the fastener device is fixed, turn on the current switch on the other side and repeat the above steps; When disassembling, the main control system turns on the current switch on one side. The current direction at this time is opposite to that during assembly. The magnetic pole at the bottom of the electromagnet is opposite to the magnetic pole at the tail of the magnetic rod. At the same time, two ultrasonic motors control the retractable fixing device to retract and the baffle to raise, so that the magnetic rod slides back; when the current is disconnected, the retractable fixing device pops out to prevent the magnetic rod from sliding out.

2. The working method of the universal bidirectional self-locking fastener device according to claim 1, Features: The main electromagnetic device and the cap baffle device system shell is made of corrosion-resistant soft magnetic alloy with high magnetic permeability or a coating layer containing corrosion-resistant soft magnetic alloy with high magnetic permeability.

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