CN111244694B

CN111244694B - Flag-shaped terminal capable of being plugged and pulled out for long time without looseness

Info

Publication number: CN111244694B
Application number: CN202010035746.1A
Authority: CN
Inventors: 岑雨霏
Original assignee: Nanjing Dortmund Electric Co ltd
Current assignee: NANJING DORTMUND ELECTRIC Co.,Ltd.
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2021-04-20
Anticipated expiration: 2040-01-14
Also published as: CN111244694A

Abstract

The utility model provides a long-term plug can not become flexible flag shape terminal, includes female end and public end, and the inside upper end fixed mounting of female end has the electric meson, and the inside both ends fixed mounting of female end has the crossbearer, and it has the card strip to peg graft in the middle part of crossbearer, and the lower extreme fixed mounting of card strip has the magnetite, and the lower extreme slidable mounting of magnetite has the ball, the recess slidable mounting of public end upper surface has the fixed strip, and the bottom fixed mounting of public end upper surface recess has the iron sheet, and the lower fixed surface of fixed strip installs movable column, and the lower extreme of movable column runs through the iron sheet overlap joint and has the slip. Through the cooperation use of card strip, magnetite, ball and magnetic stripe, can effectually fix at every turn public end and female end when pegging graft each other, can not become flexible by the joint of fixed strip, tightly attract each other with the magnetite by the iron sheet again, further guaranteed can not drop at will between public end and the female end, avoid because droing between public end and the female end, influence the electric current of flag shape terminal gradually, influence people's the condition of using.

Description

Flag-shaped terminal capable of being plugged and pulled out for long time without looseness

Technical Field

The invention relates to the technical field of rail transit, in particular to a flag-shaped terminal which cannot be loosened after being plugged and pulled for a long time.

Background

In many fittings of the electric car, the flag-shaped terminal is a conventional hardware connector, but the flag-shaped terminal is easy to loosen in long-term and multiple plugging and unplugging processes, so that the problem that the male end and the female end of the flag-shaped terminal are easy to fall off and cause poor contact is solved, and in the falling process, as the contact area of the male end and the female end is gradually reduced and other variables are not changed, the resistance is gradually increased according to the formula of resistance R = rho L/S (R resistance, S sectional area, L length and rho resistivity), so that the conduction of the flag-shaped terminal is influenced, the current passing through the flag-shaped terminal is reduced, and the normal use of people is influenced.

Disclosure of Invention

Technical scheme (I)

In order to achieve the purpose of preventing falling off, the invention provides the following technical scheme: the utility model provides a long-term plug can not become flexible flag shape terminal, includes female end and public end, the inside upper end fixed mounting of female end has the electric meson, the inside both ends fixed mounting of female end has the crossbearer, and the middle part of crossbearer is pegged graft and is had the card strip, and the lower extreme fixed mounting of card strip has the magnetite, and the lower extreme slidable mounting of magnetite has the ball.

The recess slidable mounting of public end upper surface has the fixed strip, the bottom fixed mounting of public end upper surface recess has the iron sheet, and the lower fixed surface of fixed strip installs movable post, and the lower extreme of activity post runs through the iron sheet overlap joint and has the slip strip, and the articulated strip of installing of front end of slip strip, fixed mounting have pressure spring between articulated strip and the public end lateral wall, the right-hand member fixed mounting of public end has the magnetic stripe, and the right-hand member overlap joint of magnetic stripe has fixed frame, and the movable groove has been seted up at the middle part of fixed frame, and the inside sliding connection in movable groove has the movable block.

Further, the left side fixed mounting of female end has fixed frame, the fixed frame of right-hand member overlap joint of magnetic stripe rather than symmetrical, the length and the two symmetrical movable groove looks adaptations of movable block.

Furthermore, the bending part of the hinge strip is hinged with the side surface of the male end,

furthermore, the width of the right end of the sliding strip is widened from narrow to wide, and a movable hole matched with the movable column is formed in the male end.

Furthermore, the radian of the magnet is downward in a bending mode, and the inner arc of the magnet is matched with the ball.

Furthermore, the ball is mainly when the plug is carried out at female end and public end in the convenience, and the slip of usable ball makes things convenient for the card strip to slide out from the recess of public end.

(II) advantageous effects

Compared with the prior art, the invention provides the flag-shaped terminal which cannot be loosened after long-term plugging and unplugging, and the flag-shaped terminal has the following beneficial effects:

1. this flag-shaped terminal that long-term plug can not become flexible, through the card strip, the magnetite, the cooperation of ball and magnetic stripe is used, can effectually fix at every turn public end and female end when pegging graft each other, can not become flexible by the joint of fixed strip, tightly attract each other with the magnetite by the iron sheet again, further guaranteed can not drop at will between public end and the female end, avoid because droing between public end and the female end, influence the electric current of flag-shaped terminal gradually, influence people's the condition of using.

2. This flag-shaped terminal that long-term plug can not become flexible uses through the cooperation of slip strip and activity post, can be effectual with the card strip isotructure of overlap joint on the fixed strip for transferring the top, with the distance grow between magnetite and the iron sheet, magnetic force diminishes, easily pulls out between public end and the female end, even pull out repeatedly, can not influence the elasticity between public end and the female end yet, avoids present partial device to take place the condition of elastic fatigue.

3. This flag-shaped terminal that long-term plug can not become flexible uses through the cooperation of fixed frame, activity groove and movable block, can make things convenient for when effectual moving the train, turns into elastic collision with the rigidity collision between public end and the female end, when having avoided opening suddenly or stopping because of the train, public end probably collides with the female end because of inertial reason, can damage public end for a long time.

Drawings

FIG. 1 is a schematic side view of the structure of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1;

FIG. 3 is a schematic top view of a male end of the structure of the present invention;

FIG. 4 is a schematic front view of a male end of the structure of the present invention;

FIG. 5 is a schematic view of the fixed frame, the movable trough and the movable block of the present invention.

In the figure: 1 female end, 2 male ends, 3 electric discs, 4 crossbearers, 5 clamping bars, 6 magnets, 7 balls, 8 fixed bars, 9 movable columns, 10 iron sheets, 11 sliding bars, 12 hinged bars, 13 pressure springs, 14 magnetic stripes, 15 fixed frames, 16 movable grooves and 17 movable blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a flag terminal that is not loosened after long-term plugging and unplugging comprises a female end 1 and a male end 2, wherein an electric dielectric sheet 3 is fixedly installed at the upper end inside the female end 1, the electric dielectric sheet 3 mainly increases the contact area between the female end 1 and the male end 2 to enable the electric dielectric sheet to be better electrified, cross frames 4 are fixedly installed at two ends inside the female end 1, a clamping bar 5 is inserted in the middle of each cross frame 4, a magnet 6 is fixedly installed at the lower end of each clamping bar 5, the radian of each magnet 6 is downward bent, the inner arc of each magnet 6 is matched with a ball 7, and the ball 7 is slidably installed at the lower end of each magnet 6; ball 7 is mainly when the convenient female end 1 carries out the plug with public end 2, and the slip of usable ball 7 makes things convenient for card strip 5 to slide out from the recess of public end 2.

Through card strip 5, magnetite 6, ball 7 uses with the cooperation of magnetic stripe 14, can effectually fix at every turn public end 2 and female end 1 when pegging graft each other, can not become flexible by the joint of fixed strip 8, tightly attract each other with magnetite 6 by iron sheet 10 again, further guaranteed can not drop at will between public end 2 and the female end 1, avoid because droing between public end 2 and the female end 1, influence the electric current of flag shape terminal gradually, influence people's the condition of using.

The recess slidable mounting of 2 upper surfaces of public end has fixed strip 8, and the bottom fixed mounting of 2 upper surface recesses of public end has iron sheet 10, and the lower fixed surface of fixed strip 8 installs movable post 9, and the lower extreme of activity post 9 runs through iron sheet 10 overlap joint and has a slip strip 11, and the width of slip strip 11 right-hand member is by narrow widen, the inside movable hole of offering with the 9 looks adaptations of activity post of public end 2.

Use through the cooperation of slip strip 11 and activity post 9, can be effectual with the card strip 5 isotructures of overlap joint on fixed strip 8 for transferring the top, with the distance grow between magnetite 6 and the iron sheet 10, magnetic force diminishes, easily pulls out between convenient public end 2 and the female end 1, even pull out repeatedly, can not influence the elasticity between public end 2 and the female end 1 yet, avoids present partial device to take place the condition of elastic fatigue.

Articulated strip 12 of installing of the front end of slip strip 11, the bending of articulated strip 12 is articulated with the side of public end 2, fixed mounting has pressure spring 13 between articulated strip 12 and the 2 lateral walls of public end, the right-hand member fixed mounting of public end 2 has magnetic stripe 14, the fixed frame 15 of the right-hand member overlap joint of magnetic stripe 14, the fixed frame 15 of left side fixed mounting of female end 1, the right-hand member overlap joint of magnetic stripe 14 has fixed frame 15 rather than symmetrical, the length of

movable block

17 and 16 looks adaptations of two symmetrical activity grooves, activity groove 16 has been seted up at the middle part of fixed frame 15.

Through the cooperation of fixed frame 15, activity groove 16 and movable block 17 use, can make things convenient for when effectual train motion, turn into elastic collision with the rigid collision between public end 2 and the female end 1, when having avoided opening suddenly or stopping because of the train, public end 2 probably collides with female end 1 because of inertial reason, can damage public end 2 for a long time.

A movable block 17 is slidably connected to the inside of the movable groove 16.

When the magnetic card is used, the male end 2 is slowly inserted into the female end 1, in the inserting process, the N pole of the magnetic strip 14 is arranged upwards, the magnet 6 with the N pole arranged below can be upwards repelled due to the mutual repelling force, so that the card strip 5 can move upwards, when the magnetic strip 14 gradually passes through the interior of the female end 1 and extends to the outside, the card strip 5 can gradually reduce the influence of a magnetic field due to the separation of the magnetic strip 14, the magnet 6 is not influenced by the magnetic force and can fall off and is clamped on the fixing strip 8 of the inner groove of the male end 2, and when the magnet 6 falls off the fixing strip 8, the magnet 6 can attract the iron sheet 10 to be fixed, so that the connection stability between the female end 1 and the male end 2 is ensured, and the magnet cannot fall off randomly;

when the male end 2 needs to be pulled down from the female end 1, the hinge strip 12 is pressed, as shown in fig. 4, the sliding sheet 11 is driven to move leftwards, at the moment, the sliding sheet 11 pushes the movable column 9 out, the clamping strip 5 on the fixed strip 8 is conveyed upwards, the magnet 6 is far away from the iron sheet 10, the generated attraction force disappears, meanwhile, the male end 2 gradually moves leftwards, as shown in fig. 1, the magnetic strip 14 also enters the female end 1, and as the magnetic strip 14 is close to the magnet 6 on the clamping strip 5 at the right end, when the male end 2 is pulled outwards, the clamping strip 5 at the right end is naturally influenced by the magnetic strip 14 and moves upwards to separate from the fixed strip 8.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a long-term plug can not become flexible flag shape terminal, includes female end (1) and public end (2), its characterized in that: the upper end of the interior of the female end (1) is fixedly provided with an electric dielectric sheet (3), two ends of the interior of the female end (1) are fixedly provided with cross frames (4), the middle parts of the cross frames (4) are spliced with clamping strips (5), the lower ends of the clamping strips (5) are fixedly provided with magnets (6), and the lower ends of the magnets (6) are slidably provided with balls (7);

the utility model discloses a public end (2) upper surface's recess slidable mounting has fixed strip (8), public end (2) upper surface recess's bottom fixed mounting has iron sheet (10), and the lower fixed surface of fixed strip (8) installs movable post (9), and the lower extreme of activity post (9) runs through iron sheet (10) overlap joint and has slip strip (11), and articulated the installing of the front end of slip strip (11) has articulated strip (12), and fixed mounting has pressure spring (13) between articulated strip (12) and public end (2) lateral wall, the right-hand member fixed mounting of public end (2) has magnetic stripe (14), and the right-hand member overlap joint of magnetic stripe (14) has fixed frame (15), and movable groove (16) have been seted up at the middle part of fixed frame (15), and the inside sliding connection of movable groove (16) has movable block (17).

2. The flag terminal according to claim 1, wherein the flag terminal is not loosened after long-term insertion and extraction, and comprises: female left side fixed mounting of end (1) has fixed frame (15), the fixed frame of the right-hand member overlap joint (15) of magnetic stripe (14) rather than symmetrical, the length and two symmetrical activity groove (16) looks adaptations of movable block (17).

3. The flag terminal according to claim 1, wherein the flag terminal is not loosened after long-term insertion and extraction, and comprises: the bending part of the hinge strip (12) is hinged with the side surface of the male end (2).

4. The flag terminal according to claim 1, wherein the flag terminal is not loosened after long-term insertion and extraction, and comprises: the width of the right end of the sliding strip (11) is widened from narrow to wide, and a movable hole matched with the movable column (9) is formed in the male end (2).

5. The flag terminal according to claim 1, wherein the flag terminal is not loosened after long-term insertion and extraction, and comprises: the radian of the magnet (6) is downward in a bending mode, and the inner arc of the magnet (6) is matched with the ball (7).