CN110190475B

CN110190475B - Wiring terminal

Info

Publication number: CN110190475B
Application number: CN201910545612.1A
Authority: CN
Inventors: 郑紫强; 王志强; 孙夏星
Original assignee: Anhui Huateng Agricultural Technology Co Ltd
Current assignee: Shenzhen Xiangnuoda Technology Co ltd
Priority date: 2019-06-22
Filing date: 2019-06-22
Publication date: 2020-10-09
Anticipated expiration: 2039-06-22
Also published as: CN110190475A

Abstract

The invention belongs to the field of electronic equipment, and particularly relates to a wiring terminal which comprises a male head, a female head, a plug and a socket, wherein the plug is arranged at the lower end of the male head, and the socket is arranged in the female head; the plug is in a shape of a round table with a wide upper part and a narrow lower part, and the outer surface of the plug is provided with elastic rings in the same shape; soft magnets are arranged inside the elastic rings; the bottom of the socket is provided with a strong magnet; a locking structure is arranged in the plug and the socket, and when the plug moves to the bottom of the socket, a snap ring arranged on the socket is matched with a clamping groove arranged on the plug, so that the plug is locked and fixed by the socket; na (OH) solution is arranged in the plug, and can flow into a gap between the plug and the socket through a flow groove on the first spiral groove rod to realize the electric conduction between the plug and the socket; be equipped with locking mechanism on public head and the female head for the inseparabler laminating of plug and socket is in the same place, and the effectual terminal virtual that has solved because of plug and socket contact do not really lead to connects the problem.

Description

Wiring terminal

Technical Field

The invention belongs to the field of electronic equipment, and particularly relates to a wiring terminal.

Background

The wiring terminal is an accessory product for realizing electrical connection, and is industrially divided into the category of connectors; with higher and higher industrial automation degree and stricter and more accurate industrial control requirements, the use amount of the wiring terminal gradually increases; the connecting terminal is used for conveniently connecting the wires, and is actually a section of metal sheet sealed in insulating plastic, both ends of the metal sheet are provided with holes for inserting the wires, and screws are used for fastening or loosening, for example, two wires are connected at times and disconnected at times, and then the two wires can be connected by using the terminal and disconnected at any time without welding or winding the two wires together, so that convenience and rapidness are realized. The terminal block is suitable for interconnection of a large number of wires, a special terminal block and a special terminal box are arranged in the power industry, all the terminals are single-layer, double-layer, current, voltage, common and breakable, a certain crimping area is used for ensuring reliable contact, enough current can be passed, along with the development of the electronic industry, the use range of the terminal block is more and more, and the types of the terminal block are more and more.

The terminals are classified into a plug-in type, a fence type, a spring type and a track type, wherein the plug-in type is formed by connecting two parts in a plug-in manner, one part compresses a wire and then is inserted into the other part, and the part is welded on a PCB (printed circuit board); the socket can also be provided with an assembly buckling position and a locking buckling position, the assembly buckling position can be more stably fixed on the PCB, the locking buckling position can be used for locking a mother body after installation and various socket designs of the socket can be matched with insertion methods of different mother bodies, and the socket is the terminal type of the hottest pin in the market.

In the process of artificial installation of a plurality of rows of plug-in type wiring terminals, the problem of terminal virtual connection caused by incomplete contact between a plug and a socket is easy to occur, the terminal virtual connection is the largest problem in the use process of the terminal, especially in a field mountain area, the terminal virtual connection can cause over-current of part of wire cores, so that the resistance of a wire is reduced, and according to U-I-R, when the resistance of the wire is reduced, the current of the wire is increased to generate heat, so that an insulating layer is ignited, and forest fire can be caused; aiming at the condition that a plurality of rows of plug-in wiring terminals are easy to be subjected to virtual connection, the invention provides a wiring terminal which can effectively solve the problem of the virtual connection of the plug-in wiring terminals.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides the wiring terminal which can effectively overcome the virtual connection caused by the unreal contact between the plug and the socket of the wiring terminal, thereby effectively solving a series of problems caused by the virtual connection of the terminal.

The technical scheme adopted by the invention for solving the technical problems is as follows: the wiring terminal comprises a male head, a female head, a plug and a socket, wherein the plug is arranged at the lower end of the male head, and the socket is arranged in the female head; the plug and the socket can be tightly matched; the plug is in a shape of a round table with a wide upper part and a narrow lower part, the outer surface of the plug is provided with an elastic ring in the same shape, and the elastic ring is tightly wrapped on the outer surface of the plug; an annular groove is formed in the elastic ring, soft magnets are arranged in the annular groove, and the soft magnets are placed in the annular groove in an annular shape; the bottom of the socket is provided with a strong magnet; the during operation, the plug of public head is impressed in the socket of female head, at the in-process of plug top to the motion of socket bottom, the strong magnet of socket bottom magnetizes the inside soft magnet of plug, make the plug when moving a certain position in the socket, soft magnet has certain magnetism, attract each other with the strong magnet of socket bottom, thereby after the extrusion force that breaks away from the artificial removal of moving and bring, socket bottom still can exert certain pulling force to the plug, make the plug continue to move to socket bottom, thereby make plug and socket close laminating be in the same place, make binding post can be normal electrically conductive.

Preferably, the bottom of the socket is provided with a first groove, an inflatable air bag is arranged in the first groove, and the inflatable air bag is connected with an inflatable air pipe; the middle part of the socket is provided with a chute, the chute is connected with the other end of the inflation air pipe, a sliding plate is connected in the chute in a sliding manner, a clamping ring is arranged on the sliding plate, a clamping groove is arranged in the middle part of the elastic ring, the position of the clamping groove can be matched with the clamping ring, namely when the top end of the plug moves to the bottom of the socket, the clamping ring and the clamping groove are on the same horizontal line; the during operation, when the plug moves socket a position, the plug top begins to extrude the gasbag of aerifing in the recess, it is inside that the gas in the gasbag of aerifing is extruded the spout through aerifing the trachea, thereby it moves to the outside to drive the slide in the spout, when the plug moves the socket bottom, the slide moves to the outside, snap ring on the slide this moment is advanced the draw-in groove by the horizontal extrusion, it is fixed to make the socket lock the plug, it is not real to prevent that plug and socket from because of the contact that external force leads to, further make plug and socket close laminating be in the same place, make binding post can be normal electrically conductive.

Preferably, the top of the plug is provided with a spiral rod which is distributed annularly, and the spiral rod is in a spiral shape; a second groove is formed in the bottom of the socket, a buckle is arranged in the second groove, stepped clamping teeth are arranged on the buckle, the buckle is made of elastic materials, and the buckle is located right below the screw rod; the during operation, when the plug is about to move to socket bottom, the buckle in hob tip and No. two recesses contacted this moment, when the plug continues downstream, pressure increase between hob and the buckle, the hob tip is slowly screwed in the latch on buckle top by the extrusion, hob and buckle locking this moment, when pressure between hob and the buckle continues to increase, the hob tip is pressed by the screw in to in the second latch in distance buckle top, strengthen the locking between hob and the buckle, make plug and socket more add the close laminating together, thereby more be favorable to the normal electrically conductive of binding post.

Preferably, a third groove is formed in the plug, and the third groove is filled with a Na (OH) solution which can conduct electricity; the spiral rod is communicated with the inside of the third groove, the outer surface of the spiral rod is provided with a flow groove, Na (OH) solution in the third groove can flow out through the flow groove, the upper port of the flow groove is provided with a heat-shrinkable and cold-expandable switch air bag, and the switch air bag blocks the upper port of the flow groove at normal temperature; the elastic ring is made of a thermal shrinkage and cold expansion material; during operation, due to installation factors, the plug and the socket are not completely attached, so that the wiring terminal is connected in a virtual mode, the temperature in the plug is increased due to the fact that current at the wiring terminal is overloaded, the switch air bag at the upper port of the flow groove is heated and contracted, the upper port of the flow groove is not blocked, Na (OH) solution in the third groove flows into the socket through the flow groove in the spiral rod until the Na (OH) solution is completely filled in a gap between the plug and the socket; so that the Na (OH) solution is used as a conductive medium to realize the conductivity between the plug and the socket; when the temperature in the socket is too high, the inflatable air bag is heated and expanded and is attached between the top of the plug and the bottom of the socket, so that the plug and the socket are attached more closely; simultaneously by the elastic ring that the cold material of thermal shrinkage was made be heated and contract for surface clearance between plug and the socket increases, is favorable to the plug to the motion of socket bottom more, thereby realizes the inseparabler laminating of plug and socket, more is favorable to binding post normal electrically conductive.

Preferably, a fourth groove is formed in the bottom of the socket, a gas collecting air bag is arranged in the fourth groove, a gas collecting air pipe is connected to the gas collecting air bag, and the other end of the gas collecting air pipe is communicated with the bottom of the socket; when the plug is not completely attached to the socket due to installation factors, the connecting terminal is in virtual connection, the temperature in the plug is increased due to overload of current at the connecting terminal, the switch air bag at the upper port of the flow groove is heated and contracted, the upper port of the flow groove is not blocked, and Na (OH) solution in the third groove flows into the socket through the flow groove on the spiral rod; when the plug moves to a certain position of the socket, the top of the plug extrudes the gas collecting air bag in the fourth groove, gas in the gas collecting air bag is extruded into the socket through the gas collecting pipe, and airflow blows Na (OH) solution in the upper chute of the spiral rod, so that the flow rate of the Na (OH) solution can be increased, the temperature in the socket can be cooled, and the wire connecting terminal is prevented from being damaged due to overhigh temperature; after the plug and the socket are completely attached, the current of the connecting terminal recovers to be normal and does not generate heat any more, and the residual heat gas in the socket is collected in the gas collection air bag at the moment, so that the gas collection air bag is expanded and attached between the plug and the socket, the plug and the socket are attached more closely, and the normal conduction of the connecting terminal is facilitated.

Preferably, the bottom of the male head is provided with a locking rod, the bottom of the locking rod is provided with a locking block, and the locking block is made of elastic materials; the top of the female head is provided with an arc-shaped locking groove, the locking groove is positioned under the locking rod, the top of the locking groove is provided with a locking edge, the starting point of the locking groove is not provided with the locking edge, so that the locking block can conveniently slide in, and the depth of the notch of the locking groove is gradually increased from the starting point to the end point and is matched with the locking rod for locking; during operation, when the plug moves to a certain position at the bottom of the socket, the locking block at the end part of the locking rod is inserted into the starting point of the locking groove, when the plug continues to move downwards, the locking block is stressed to be screwed into the end part of the locking groove, and the locking block is locked by the locking edge on the locking groove at the moment, so that the plug is attached and fastened to the socket, meanwhile, the contact area between the male head and the female head is also increased, and the conductive performance of the wiring terminal is better.

The invention has the following beneficial effects:

1. according to the invention, the corresponding soft magnet and the corresponding strong magnet are additionally arranged in the plug and the socket, so that the soft magnet and the strong magnet attract each other in the process of moving the top of the plug to the bottom of the socket, and the plug continues to move to the bottom of the socket after the extrusion force caused by manual insertion is separated, so that the plug and the socket are tightly attached together, the male head and the female head can be in complete contact, and the wiring terminal can conduct normally.

2. According to the invention, the locking structures are arranged in the plug and the socket, so that when the plug moves to the bottom of the socket, the socket can lock and fix the plug, the plug and the socket are more closely attached together, the contact surface area of the plug and the socket is increased, and the normal conduction of the wiring terminal is facilitated.

3. According to the invention, the Na (OH) solution is arranged in the plug, when the plug is not completely attached to the socket, the temperature of the wiring terminal rises, and the Na (OH) solution flows into a gap between the plug and the socket, so that the Na (OH) solution is used as a conductive medium, the conductivity between the plug and the socket is realized, and the gas collection air bag arranged on the socket can cool the high temperature in the socket, thereby preventing the wiring terminal from being damaged due to overhigh temperature.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic diagram of the operation of the present invention;

FIG. 4 is an enlarged view at A in FIG. 2;

FIG. 5 is an enlarged view at B in FIG. 2;

FIG. 6 is a cross-sectional view taken at C-C of FIG. 3;

FIG. 7 is a cross-sectional view taken at D-D of FIG. 6;

in the figure: the locking device comprises a male head 1, a locking rod 11, a locking block 111, a female head 2, a locking groove 21, a locking edge 211, a plug 3, a screw rod 31, a flow groove 311, a switch air bag 312, a third groove 32, a Na (OH) solution 321, a socket 4, a strong magnet 41, a first groove 42, an inflatable air bag 43, an inflatable air pipe 44, a sliding groove 45, a sliding plate 46, a clamping ring 461, a second groove 47, a clamping buckle 48, a clamping tooth 481, a fourth groove 49, a gas collection air bag 491, a gas collection air pipe 492, an elastic ring 5, an annular groove 51, a soft magnet 52 and a clamping groove 53.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.

As shown in fig. 1 to 7, the connection terminal of the present invention includes a male terminal 1, a female terminal 2, a plug 3 and a socket 4, wherein the plug 3 is installed at a lower end of the male terminal 1, and the socket 4 is arranged inside the female terminal 2; the plug 3 and the socket 4 can be tightly matched; the shape of the plug 3 is a round table shape with a wide upper part and a narrow lower part, the outer surface is provided with an elastic ring 5 with the same shape, and the elastic ring 5 is tightly wrapped on the outer surface of the plug 3; an annular groove 51 is formed in the elastic ring 5, soft magnets 52 are arranged in the annular groove 51, and the soft magnets 52 are annularly arranged in the annular groove 51; the bottom of the socket 4 is provided with a strong magnet 41; during operation, 3 the plugs 3 of public head 1 impress in the socket 4 of female head 2, in the in-process of 3 tops of plugs to the motion of 4 bottoms of socket, the strong magnet 41 of 4 bottoms of socket magnetizes the inside soft magnet 52 of 3 plugs, make plug 3 move in socket 4 when a certain position, soft magnet 52 has certain magnetism, attract each other with the strong magnet 41 of 4 bottoms of socket, thereby after the extrusion force that brings for the plug-in of breaking away from, socket 4 bottoms still can exert certain pulling force to plug 3, make plug 3 continue to move 4 bottoms of socket, thereby make plug 3 and socket 4 close laminating together, make binding post can be normal electrically conductive.

As an embodiment of the present invention, a first groove 42 is formed at the bottom of the socket 4, an inflatable air bag 43 is arranged in the first groove 42, and the inflatable air bag 43 is connected with an inflatable air tube 44; a sliding groove 45 is formed in the middle of the socket 4, the sliding groove 45 is connected with the other end of the inflation air pipe 44, a sliding plate 46 is connected in the sliding groove 45 in a sliding mode, a clamping ring 461 is arranged on the sliding plate 46, a clamping groove 53 is formed in the middle of the elastic ring 5, and the position of the clamping groove 53 can be matched with the clamping ring 461, namely when the top end of the plug 3 moves to the bottom of the socket 4, the clamping ring 461 and the clamping groove 53 are on the same horizontal line; during operation, when plug 3 moves to socket 4 a certain position, the top of plug 3 begins to extrude the air bag 43 of aerifing in recess 42, the gas in the air bag 43 is inside by the spout 45 of being extruded through aerifing trachea 44, thereby it moves to the outside to drive slide 46 in the spout 45, when plug 3 moves to socket 4 bottom, slide 46 moves to the outermost side, snap ring 461 on the slide 46 is pushed into draw-in groove 53 by the level this moment, it is fixed to make socket 4 lock plug 3, prevent that plug 3 and socket 4 from because of the contact that external force leads to not real, further make plug 3 and socket 4 closely laminate together, make binding post can normal electrically conductive.

As an embodiment of the invention, the top of the plug 3 is provided with a spiral rod 31 which is distributed annularly, and the shape of the spiral rod 31 is a spiral shape; a second groove 47 is formed in the bottom of the socket 4, a buckle 48 is mounted in the second groove 47, a stepped latch 481 is arranged on the buckle 48, the buckle 48 is made of an elastic material, and the buckle 48 is located right below the screw rod 31; during operation, when the plug 3 is about to move to the bottom of the socket 4, the end of the spiral rod 31 contacts with the buckle 48 in the second groove 47, when the plug 3 continues to move downwards, the pressure between the spiral rod 31 and the buckle 48 is increased, the end of the spiral rod 31 is extruded to be slowly screwed into the buckle tooth 481 at the top end of the buckle 48, the spiral rod 31 is locked with the buckle 48 at the moment, when the pressure between the spiral rod 31 and the buckle 48 continues to be increased, the end of the spiral rod 31 is extruded to be screwed into the second buckle tooth 481 away from the top end of the buckle 48, the locking between the spiral rod 31 and the buckle 48 is strengthened, the plug 3 and the socket 4 are more tightly attached together, and the normal conduction of the wiring terminal is more facilitated.

As an embodiment of the present invention, a third groove 32 is disposed inside the plug 3, the third groove 32 contains a na (oh) solution 321, and the na (oh) solution 321 can conduct electricity; the spiral rod 31 is communicated with the inside of the third groove 32, the outer surface of the spiral rod 31 is provided with a flow groove 311, Na (OH) solution 321 in the third groove 32 can flow out through the flow groove 311, the upper port of the flow groove 311 is provided with a heat-shrinkable and cold-expandable switch air bag 312, and the upper port of the flow groove 311 is blocked by the switch air bag 312 at normal temperature; the elastic ring 5 is made of a thermal shrinkage and cold expansion material; during operation, due to installation factors, the plug 3 and the socket 4 are not completely attached, the connecting terminal is in virtual connection, the internal temperature of the plug 3 is increased due to overload of current at the connecting terminal, the switch air bag 312 at the upper port of the flow groove 311 is heated and contracted, the upper port of the flow groove 311 is not blocked, and the Na (OH) solution 321 in the third groove 32 flows into the socket 4 through the flow groove 311 on the spiral rod 31 until the Na (OH) solution is completely filled in a gap between the plug 3 and the socket 4; so that the na (oh) solution 321 serves as a conductive medium to achieve conductivity between the plug 3 and the socket 4; when the temperature in the socket 4 is too high, the inflatable airbag 43 is heated and expanded and is attached between the top of the plug 3 and the bottom of the socket 4, so that the plug 3 and the socket 4 are tightly attached; simultaneously by the elastic ring 5 that pyrocondensation cold expanding material made receive heat and contract for the surface clearance increase between plug 3 and the socket 4 is favorable to plug 3 to 4 bottom motions of socket more, thereby realizes the inseparabler laminating of plug 3 and socket 4, more is favorable to binding post normal electrically conductive.

As an embodiment of the invention, a fourth groove 49 is arranged at the bottom of the socket 4, a gas collecting air bag 491 is arranged in the fourth groove 49, a gas collecting air pipe 492 is connected to the gas collecting air bag 491, and the other end of the gas collecting air pipe 492 is communicated with the bottom of the socket 4; when the plug 3 and the socket 4 are not completely attached due to installation factors, the terminals are connected in a virtual manner, the internal temperature of the plug 3 is increased due to the overload of current at the connecting terminal, the switch air bag 312 at the upper port of the flow groove 311 is heated and contracted, the upper port of the flow groove 311 is not blocked, and Na (OH) solution 321 in the third groove 32 flows into the socket 4 through the flow groove 311 on the spiral rod 31; when the plug 3 moves to a certain position of the socket 4, the top of the plug 3 extrudes the gas collecting air bag 491 in the fourth groove 49, the gas in the gas collecting air bag 491 is extruded into the socket 4 through the gas collecting pipe 492, and the gas flow blows on the Na (OH) solution 321 in the flow groove 311 on the screw rod 31, so that on one hand, the flow rate of the Na (OH) solution 321 can be increased, on the other hand, the temperature in the socket 4 can be cooled, and the damage to the wiring terminal caused by overhigh temperature can be prevented; after the plug 3 and the socket 4 are completely attached, the current of the connecting terminal is recovered to be normal and does not generate heat any more, and the excessive hot air in the socket 4 is collected in the air collecting air bag 491 at the moment, so that the air collecting air bag 491 bulges, the attachment is between the plug 3 and the socket 4, the plug 3 and the socket 4 are more closely attached, and the normal conduction of the connecting terminal is more facilitated.

As an embodiment of the present invention, a locking rod 11 is disposed at the bottom of the male head 1, a locking block 111 is disposed at the bottom of the locking rod 11, and the locking block 111 is made of an elastic material; the top of the female head 2 is provided with an arc-shaped locking groove 21, the locking groove 21 is positioned under the locking rod 11, the top of the locking groove 21 is provided with a locking edge 211, the starting point of the locking groove 21 is not provided with the locking edge 211, so that the locking block 111 can conveniently slide in, the depth of the notch of the locking groove 21 is gradually increased from the starting point to the end point, and the notch is matched and locked with the locking rod 11; during operation, when the plug 3 moves to a certain position at the bottom of the socket 4, the locking block 111 at the end of the locking rod 11 is inserted into the starting point of the locking groove 21, when the plug 3 continues to move downwards, the locking block 111 is forced to be screwed into the final part of the locking groove 21, and the locking edge 211 on the locking groove 21 locks the locking block 111, so that the plug 3 and the socket 4 are attached and fastened, meanwhile, the contact area between the male head 1 and the female head 2 is increased, and the conductivity of the wiring terminal is better.

When the plug is in work, the plug 3 of the male head 1 is pressed into the socket 4 of the female head 2, and in the process that the top of the plug 3 moves towards the bottom of the socket 4, the strong magnet 41 at the bottom of the socket 4 magnetizes the soft magnet 52 inside the plug 3, so that when the plug 3 moves to a certain position in the socket 4, the soft magnet 52 has certain magnetism and is mutually attracted with the strong magnet 41 at the bottom of the socket 4, and therefore after the extrusion force caused by manual insertion is separated, certain pulling force can still be applied to the plug 3 at the bottom of the socket 4, and the plug 3 continues to move towards the bottom of the socket 4; when the plug 3 moves to a certain position of the socket 4, the top of the plug 3 starts to extrude the inflatable airbag 43 in the first groove 42, gas in the inflatable airbag 43 is extruded into the sliding groove 45 through the inflatable air pipe 44, so that the sliding plate 46 in the sliding groove 45 is driven to move outwards, when the plug 3 moves to the bottom of the socket 4, the sliding plate 46 moves to the outermost side, and at the moment, the snap ring 461 on the sliding plate 46 is horizontally extruded into the clamping groove 53, so that the socket 4 locks and fixes the plug 3; when the plug 3 is about to move to the bottom of the socket 4, the end of the screw rod 31 contacts with the catch 48 in the second groove 47, when the plug 3 continues to move downwards, the pressure between the screw rod 31 and the catch 48 is increased, the end of the screw rod 31 is squeezed to be slowly screwed into the catch 481 at the topmost end of the catch 48, at this time, the screw rod 31 is locked with the catch 48, when the pressure between the screw rod 31 and the catch 48 continues to increase, the end of the screw rod 31 is squeezed to be screwed into the second catch 481 which is away from the top end of the catch 48, so as to strengthen the locking between the screw rod 31 and the catch 48, when the installation factor causes the plug 3 and the socket 4 not to be completely attached to cause the virtual connection of the terminal, at this time, the internal temperature of the plug 3 is increased due to the overload of the current at the terminal, the switch air bag 312 at the upper port of the flow groove 311 is heated to be contracted, at this time, the upper port of the flow groove 311 is not blocked, until completely filling the gap between the plug 3 and the socket 4; so that the na (oh) solution 321 serves as a conductive medium to achieve conductivity between the plug 3 and the socket 4; when the temperature in the socket 4 is too high, the inflatable airbag 43 is heated and expanded and is attached between the top of the plug 3 and the bottom of the socket 4, so that the plug 3 and the socket 4 are attached more closely; meanwhile, the elastic ring 5 made of the thermal shrinkage and cold expansion material is heated to be contracted, so that the surface gap between the plug 3 and the socket 4 is increased, and the plug 3 can move towards the bottom of the socket 4; when the plug 3 moves to a certain position of the socket 4, the top of the plug 3 extrudes the gas collecting air bag 491 in the fourth groove 49, the gas in the gas collecting air bag 491 is extruded into the socket 4 through the gas collecting pipe 492, and the gas flow blows on the Na (OH) solution 321 in the runner 311 on the screw rod 31, so that on one hand, the flow rate of the Na (OH) solution 321 can be increased, on the other hand, the temperature in the socket 4 can be cooled, and the excessive hot gas in the socket 4 is collected in the gas collecting air bag 491, so that the gas collecting air bag 491 bulges and is attached between the plug 3 and the socket 4; and when the plug 3 moves to a certain position at the bottom of the socket 4, the locking block 111 at the end of the locking rod 11 is inserted into the starting point of the locking groove 21, when the plug 3 continues to move downwards, the locking block 111 is forced to be screwed into the final part of the locking groove 21, and the locking edge 211 on the locking groove 21 locks the locking block 111, so that the plug 3 and the socket 4 are attached and fastened, meanwhile, the contact area between the male head 1 and the female head 2 is increased, and the normal conduction of the wiring terminal is facilitated.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A wiring terminal comprises a male head (1), a female head (2), a plug (3) and a socket (4), wherein the plug (3) is installed at the lower end of the male head (1), and the socket (4) is arranged in the female head (2); the plug (3) is tightly matched with the socket (4); the method is characterized in that: the plug (3) is in a shape of a round table with a wide upper part and a narrow lower part, the outer surface of the plug is provided with an elastic ring (5) in the same shape, the elastic ring (5) is tightly wrapped on the outer surface of the plug (3), an annular groove (51) is formed in the elastic ring (5), soft magnets (52) are arranged in the annular groove (51), and the soft magnets (52) are annularly arranged in the annular groove (51); the bottom of the socket (4) is provided with a strong magnet (41), and the strong magnet (41) can attract soft magnets (52) in the elastic ring (5) to enable the top end of the plug (3) to move towards the bottom of the socket (4);

a first groove (42) is formed in the bottom of the socket (4), an inflatable air bag (43) is arranged in the first groove (42), and the inflatable air bag (43) is connected with an inflatable air pipe (44); a sliding groove (45) is formed in the middle of the socket (4), the sliding groove (45) is connected with the other end of the inflation air pipe (44), a sliding plate (46) is connected to the inside of the sliding groove (45) in a sliding mode, a clamping ring (461) is arranged on the sliding plate (46), and a clamping groove (53) is formed in the middle of the elastic ring (5); the position of the clamping groove (53) can be matched with the clamping ring (461), namely when the top end of the plug (3) moves to the bottom of the socket (4), the clamping ring (461) and the clamping groove (53) are on the same horizontal line.

2. A terminal according to claim 1, wherein: the top of the plug (3) is provided with a spiral rod (31) which is distributed annularly, and the spiral rod (31) is in a spiral shape with threads; a second groove (47) is formed in the bottom of the socket (4), a buckle (48) is installed in the second groove (47), stepped clamping teeth (481) are arranged on the buckle (48), the buckle (48) is made of elastic materials, and the buckle (48) is located right below the spiral rod (31); when the screw rod (31) moves to the snap (48) position, the screw rod (31) is pressed into the snap teeth (481) of the snap ring (461).

3. A terminal according to claim 2, wherein: a third groove (32) is formed in the plug (3), Na (OH) solution (321) is contained in the third groove (32), and the Na (OH) solution (321) conducts electricity; the spiral rod (31) is communicated with the inside of the third groove (32), a flow groove (311) is formed in the outer surface of the spiral rod (31), Na (OH) solution (321) in the third groove (32) can flow out through the flow groove (311), a heat-shrinkable and cold-expandable switch air bag (312) is installed at the upper port of the flow groove (311), and the switch air bag (312) blocks the upper port of the flow groove (311) at normal temperature; the elastic ring (5) is made of a thermal shrinkage and cold expansion material.

4. A terminal according to claim 1, wherein: the bottom of the socket (4) is provided with a fourth groove (49), a gas collection air bag (491) is arranged in the fourth groove (49), a gas collection air pipe (492) is connected to the gas collection air bag (491), and the other end of the gas collection air pipe (492) is communicated with the bottom of the socket (4).

5. A terminal according to claim 1, wherein: the bottom of the male head (1) is provided with a locking rod (11), and the bottom of the locking rod (11) is provided with a locking block (111); female first (2) top is provided with curved locking groove (21), locking groove (21) are located check lock lever (11) under, and locking groove (21) top is provided with lockrand (211), and the starting point in locking groove (21) does not set up lockrand (211), makes things convenient for latch segment (111) to slide in, the notch degree of depth in locking groove (21) is from the starting point to the terminal point grow gradually, with check lock lever (11) cooperation locking.