CN212182677U - Large-current locking connector - Google Patents

Abstract

The utility model discloses a heavy current locking connector, including socket shell and lock core, the last shaft hole of having seted up of socket shell, rotatable double flute axle of installing in the shaft hole, end cover and double flute axle fixed connection have seted up the mounting groove on the socket shell, install restriction double flute axle pivoted lock core in the mounting groove. The utility model has the advantages that: the double-groove shaft can be locked through the matching of the lock cylinder and the arc-shaped grooves a and b, so that the end cover cannot rotate, and can be opened or closed only through a key, thereby effectively preventing the end cover from shifting under external force or vibration and impact to cause the connector to be connected and fall off; the end cover is under the tension of the tension spring when being opened or closed, so that a holding force is provided for the insertion of the plug assembly and the jack assembly; the connector has the self-locking and interlocking dual locking functions, can provide a reliable large-current transmission connection mode in a severe environment, has the reliability which cannot be achieved by the traditional connector, and can be suitable for the fields of railways, power generation and distribution, new energy and the like.

Description

Large-current locking connector

Technical Field

The utility model relates to a heavy current connector, especially heavy current locking connector.

Background

With the rapid development of the industry, high-current connectors have become an indispensable part of modern electrical equipment, and the advancement of the high-current connectors in structural design and material use makes the connectors outstanding in electrical performance.

The durable and reliable high-current connector depends on a good connection mode and a locking mode, and the connection reliability of the high-current connector is tested in a severe vibration and impact environment.

The traditional high-current connector adopts a bayonet locking mode or a screw locking mode, and cannot cope with increasingly severe service environments. Bayonet locking connectors are limited to relatively small volume connectors and are not suitable for connectors requiring high voltage resistance and large insulation. The screw locking connector needs a large installation space, the insertion of the connector is not guided by the force of a locking mechanism, and for the connector with large current, the screw locking connector is difficult to insert and pull and difficult to insert. In addition, the traditional high-current connector has long instantaneous disconnection time and is easy to loosen under the severe vibration and impact environmental conditions, and the reliability and the stability of the connector are not guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a heavy current locking connector suitable for fields such as railway, power generation and distribution and new forms of energy.

The purpose of the utility model is realized through the following technical scheme: heavy current locking connector including socket shell and lock core, has seted up the shaft hole on the socket shell, and rotatable the installing double flute axle in the shaft hole, end cover and double flute axle fixed connection have seted up the mounting groove on the socket shell, install the two flute axle pivoted lock cores of restriction in the mounting groove.

Preferably, the double-groove shaft is radially provided with an arc-shaped groove a and an arc-shaped groove b, and an included angle is formed between the arc-shaped groove a and the arc-shaped groove b.

Preferably, the lock core includes the lock post, and the key hole has been seted up at the top of lock post, and the bottom of lock post is provided with the rotary column, and the constant head tank has been seted up to the bottom of mounting groove, and the rotary column is rotatable to be installed in the constant head tank, still is provided with the boss that can block in arc recess an or the arc recess b on the lateral wall of lock post.

Preferably, install the flexure strip in the mounting groove, keep away from on the lock post and be provided with the locating plane that can laminate with the flexure strip on the lateral wall of adjacent boss.

Preferably, one side of the bottom of the mounting groove far away from the double-groove shaft is provided with four limiting columns, the limiting columns are distributed in a rectangular mode, and the elastic sheet is mounted between the four limiting columns.

Preferably, the socket shell is further provided with a cover plate for covering the mounting groove, and the cover plate is provided with a lock hole matched with the key hole.

Preferably, the socket shell is further provided with a rotating shaft, the rotating shaft is connected with a dust cover, the rotating shaft is sleeved with a torsion spring, and the dust cover is supported on the cover plate through the torsion force of the torsion spring.

Preferably, the socket housing is further provided with a tension spring, and the other end of the tension spring is connected with the end cover, so that the end cover covers the port, close to the end cover, of the socket housing.

Preferably, the end of the socket shell far away from the end cover is provided with a connecting plate, the connecting plate is provided with a hanging piece, and one end of the tension spring is connected with the hanging piece.

Preferably, the end cover is provided with a notch, connecting arms are formed on two sides of the notch, through holes connected with the double-groove shafts are formed in the connecting arms, and the connecting arms are respectively connected with two ends of the corresponding double-groove shafts and are fixed through pin shafts.

The utility model has the advantages of it is following:

1. the large-current locking connector can lock the double-groove shaft through the matching of the lock cylinder and the arc-shaped grooves a and b, so that the end cover cannot rotate, the end cover can be opened or closed only through a key, and the displacement of the end cover under external force or vibration and impact is effectively prevented, and the connector is prevented from being connected and falling off;

2. the heavy-current locking connector is provided with the tension spring, so that the end cover is under the tension of the tension spring when being opened or closed, and therefore, a holding force is provided for the insertion of the plug assembly and the jack assembly, and the plug assembly and the jack assembly are prevented from loosening;

3. the utility model discloses a heavy current locking connector has auto-lock and the dual locking function of interlocking, can provide reliable heavy current transmission connected mode in adverse circumstances, especially in abominable vibration, impact environment, and its reliability is that traditional connector can't reach, can be applicable to fields such as railway, power generation and distribution and new forms of energy.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic view of the open end cap;

fig. 4 is a schematic cross-sectional view of the present invention;

FIG. 5 is an enlarged schematic view at I of FIG. 4;

FIG. 6 is a schematic view of the installation of the lock cylinder;

FIG. 7 is a schematic structural view of the lock cylinder;

FIG. 8 is a schematic structural view of a double grooved shaft;

in the figure, 1-end cover, 2-connecting plate, 3-double-groove shaft, 4-sealing ring, 5-cover plate, 6-lock core, 7-elastic sheet, 8-socket shell, 9-arc groove a, 10-arc groove b, 11-tension spring, 12-hanging sheet, 13-dust cover, 14-torsion spring, 15-rotating shaft, 61-lock column, 62-key hole, 63-boss, 64-positioning plane, 65-rotating column, 67-mounting groove and 68-limiting column.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, 2 and 3, the high-current locking connector comprises a socket housing 8, an end cover 1 and a lock cylinder 6, wherein a through hole is formed in the socket housing 8, ports are formed in two ends of the through hole, a shaft hole is formed in the outer side wall of the socket housing 8, a double-groove shaft 3 is rotatably mounted in the shaft hole, as shown in fig. 8, an arc-shaped groove a9 and an arc-shaped groove b10 are radially formed in the double-groove shaft 3, an included angle is formed between the arc-shaped groove a9 and the arc-shaped groove b10, the end cover 1 is fixedly connected with the double-groove shaft 3, a rotation angle of the end cover 1 relative to the socket housing 8 is determined through the arc-shaped groove a9 and the arc-shaped groove b10, and preferably.

In the present embodiment, as shown in fig. 1 to 4, an installation groove 67 is formed on the socket housing 8, a lock cylinder 6 for limiting rotation of the dual-groove shaft 3 is installed in the installation groove 67, further, as shown in fig. 6 and 7, the lock cylinder 6 includes a lock cylinder 61, a key hole 62 is formed at a top of the lock cylinder 61, a rotation column 65 is disposed at a bottom of the lock cylinder 61, a positioning groove is formed at a bottom of the installation groove 67, the rotation column 65 is rotatably installed in the positioning groove, a boss 63 capable of being engaged in an arc-shaped groove a9 or an arc-shaped groove b10 is further disposed on a side wall of the lock cylinder 61, specifically, when the end cover 1 covers a port of the socket housing 8, the arc-shaped groove a9 is opposite to the boss 63, a key is inserted into the key hole 62 and then the lock cylinder 61 is rotated, the lock cylinder 61 rotates in the installation groove 67, the boss 63 also rotates with the lock cylinder 61, when the boss 63 is engaged in the arc-shaped groove, therefore, the end cover 1 always covers the port of the socket shell 8, when the end cover 1 needs to be opened, a key is inserted into the key hole 62, then the lock column 61 is rotated, the boss 63 is separated from the arc-shaped groove a9, then external force is applied to the end cover 1, the double-groove shaft 3 is rotated, after the end cover 1 reaches a specified position, the arc-shaped groove b10 is opposite to the boss 63, then the lock column 61 is rotated, the boss 63 is clamped into the arc-shaped groove b10, the position of the end cover 1 is fixed, and the port of the socket shell 8 is opened.

In this embodiment, as shown in fig. 6, an elastic sheet 7 is installed in the installation groove 67, a positioning plane 64 capable of being attached to the elastic sheet 7 is disposed on a side wall of the lock cylinder 61 far from and adjacent to the boss 63, preferably, a positioning plane 64 capable of being attached to the elastic sheet 7 is disposed on a side wall of the lock cylinder 63 far from and adjacent to the boss 63, after the positioning plane 64 is attached to the elastic sheet 7, the lock cylinder 61 is kept fixed without being affected by external force, so as to ensure the position of the end cap 1 is fixed, when the lock cylinder 61 is rotated, an edge angle between adjacent positioning planes 64 presses against the elastic sheet 7, so that the elastic sheet 7 is deformed, after the elastic sheet 7 is deformed, an elastic restoring force is generated, so that an operator has a force feeling, and after another positioning plane 64 is attached to the elastic sheet 7, the elastic sheet 7 is not deformed, and the elastic restoring force disappears, so that the force feeling of the operator disappears, the operator can sense the force and determine whether the lock cylinder 61 is rotated in place.

In this embodiment, as shown in fig. 6, four limiting columns 68 are arranged on one side of the bottom of the mounting groove 67, which is far away from the double-groove shaft 3, the limiting columns 68 are distributed in a rectangular shape, and the elastic sheet 7 is mounted between the four limiting columns 68, so that the elastic sheet 7 is convenient to mount, preferably, the elastic sheet 7 is composed of a plurality of elastic sheets, and when the elastic sheet is mounted, the elastic sheets are stacked between the four limiting columns 68.

In this embodiment, as shown in fig. 4, a cover plate 5 covering the mounting groove 67 is further installed on the socket housing 8, further, the socket housing 8 is provided with a plurality of screw holes, the cover plate 5 is locked on the socket housing 8 by screws, and the cover plate 5 covers the mounting groove 67, so as to protect the lock cylinder 6, further, in order to facilitate the insertion of the key, the cover plate 5 is provided with a locking hole matching with the key hole 62, and in order to facilitate the removal of the key, a gap is provided between the cover plate 5 and the lock cylinder 61, a protrusion on the key can rotate in the gap, and in order to increase the height of the gap, the locking hole of the cover plate 5 can protrude outward, so that after the boss 63 is clamped with the arc-shaped groove a9 or the arc-shaped groove b10, the key is lifted up, so that the key is separated from the key hole 62, and then the key can.

In this embodiment, as shown in fig. 1, 2 and 3, a rotating shaft 15 is further installed on the socket housing 8, a dust-proof cover 13 is connected to the rotating shaft 15, a torsion spring 14 is sleeved on the rotating shaft 15, the dust-proof cover 13 abuts against the cover plate 5 through a torsion force of the torsion spring 14, preferably, the torsion spring 14 is a double torsion spring 14, and an elastic arm of the double torsion spring 14 is installed on the dust-proof cover 13, so that the dust-proof cover 13 always covers the lock hole under the action of the torsion spring 14 without being affected by an external force, thereby preventing impurities from entering the lock hole and affecting normal use of the key.

In this embodiment, as shown in fig. 1 and 3, a tension spring 9 is further installed on the socket housing 8, the other end of the tension spring 9 is connected with the end cap 1, further, one end of the socket housing 8, which is far away from the end cap 1, is provided with a connecting plate 2, the connecting plate 2 is a rectangular plate, through holes are opened on four corners, hanging pieces 12 are installed on the connecting plate 2, preferably, the hanging pieces 12 are detachably connected with the connecting plate 2 through screws, one end of the tension spring 9 is connected with the hanging pieces 12, the tension spring 9 is in a stretching state for a long time, so that the tension spring 9 always exerts a pulling force on the end cap 1, so that the end cap 1 has a tendency of moving towards the port of the socket housing 8, therefore, after the boss 63 is separated from the arc-shaped groove a9 or the arc-shaped groove b, the end cap 1 covers the port of the socket housing 8 under the pulling force of the, thereby enabling the end cap 1 to seal the port of the jack housing 8.

In this embodiment, as shown in fig. 3, a notch is formed in the end cover 1, connecting arms are formed on two sides of the notch, through holes connected to the double-grooved shafts 3 are formed in the connecting arms, the connecting arms are respectively connected to two ends of the corresponding double-grooved shafts 3, and are fixed by pins, during installation, the double-grooved shafts 3 are sequentially inserted into the through holes of the corresponding connecting arms, and then the pins are inserted, so that the end cover 1 is connected to the double-grooved shafts 3, and further, the axes of the pins are perpendicular to the axes of the double-grooved shafts 3.

The working process of the invention is as follows:

the socket shell 8 is provided with the tension spring 9, so that no matter in an initial state of the pin assembly and the jack assembly 10 or in a plugging state of the pin assembly and the jack assembly 10, the tension spring 9 generates tension on the end cover 1, and in the initial state, the tension spring 9 generates tension on the end cover 1 and the end surface of the end cover 1 extrudes the sealing ring 4, so that the socket shell 8 has a protection effect, and at the moment, the end cover 1 can be directly opened through external force; when the pin assembly and the jack assembly are inserted, the tension spring 9 generates tension on the end cover 1, the tension spring 9 provides inserting and closing holding force of the plug assembly and the jack assembly, so that the plug assembly and the jack assembly are prevented from loosening, therefore, the connection of the tension spring 9 with the end cover 1 and the socket shell 8 constitutes a first double-locking mechanism of the embodiment, the end cover 1 can be opened under the action of external force at the moment, in order to prevent the end cover 1 from being opened under the non-violent action, in the embodiment, a second double-locking mechanism is arranged, namely, when the socket is in an initial state, the end cover 1 covers the port of the socket shell 8 under the action of the tension spring 9 and is in a locking state, then the boss 63 of the lock cylinder 6 enters the arc-shaped groove a9 of the double-groove shaft 3 through a key, the end cover 1 is in a locking state at the moment and cannot be opened under the non-violent action, then the key is taken out, the dustproof, can be opened by means of an external force. When the pin assembly needs to be inserted into the plug assembly, the end cover 1 needs to be opened, and the step of opening the end cover 1 is as follows: the dust cover 13 is turned over, a key penetrates through the cover plate 5 and enters the key hole 62 of the lock cylinder 6, the key is twisted to drive the lock cylinder 6 to rotate, when a worker feels that the worker is not subjected to the elasticity of the elastic sheet 7, the fact that the boss 63 of the lock cylinder 6 leaves the arc-shaped groove a9 of the double-groove shaft 3 is indicated, in the actual operation process, preferably, the worker rotates 90 degrees to enable the boss 63 to leave the arc-shaped groove a9, and the double-groove shaft 3 and the end cover 1 are in a free state and can rotate. After the end cover 1 is opened and the pin assembly and the jack assembly 10 are inserted, the lock catch 2 is buckled on the annular groove 36 of the plug shell 22, then the lock core 6 is rotated by a key, the boss 63 of the lock core 6 enters the arc-shaped groove b10 of the double-groove shaft 3, the key is pulled out, the dust cover 13 is put down, at the moment, the end cover 1 is in a locked state, and under the condition that no key exists, the end cover 1 cannot be opened under the non-violent action. When the contact pin assembly and the plug assembly need to be separated, a key is inserted, the lock cylinder 6 is rotated, the boss 63 of the lock cylinder 6 is separated from the arc-shaped groove b10 of the double-groove shaft 3 to extract the plug, the end cover 1 is put down, the lock cylinder 6 is rotated again, the boss 63 of the lock cylinder 6 enters the arc-shaped groove a9 of the double-groove shaft 3, the key is extracted, the end cover 1 is locked, and the dust cover 13 is self-locked. The second locking mechanism can open or close the end cover 1 only by a key, and effectively prevents the end cover 1 from displacing under external force or vibration and impact, so that the connector is connected and falls off.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (10)

1. Heavy current lock connector, its characterized in that: including socket shell and lock core, the last shaft hole of having seted up of socket shell, rotatable double flute axle of installing in the shaft hole, the end cover with double flute axle fixed connection, the mounting groove has been seted up on the socket shell, install the restriction in the mounting groove double flute axle pivoted the lock core.

2. The high current locking connector of claim 1, wherein: arc recess an and arc recess b have radially been seted up on the double flute axle, arc recess an with have the contained angle between the arc recess b.

3. The high current locking connector of claim 2, wherein: the lock core includes the lock post, the key hole has been seted up at the top of lock post, the bottom of lock post is provided with the rotary column, the constant head tank has been seted up to the bottom of mounting groove, the rotary column is rotatable to be installed in the constant head tank, still be provided with on the lateral wall of lock post and go into can the card arc recess an or boss in the arc recess b.

4. A high current locking connector as claimed in claim 3, wherein: install the flexure strip in the mounting groove, keep away from on the lock post with adjacent be provided with on the lateral wall of boss can with the location plane of flexure strip laminating.

5. The high current locking connector of claim 4, wherein: one side of keeping away from double flute axle in the bottom of mounting groove is provided with four spacing posts, just spacing post is the rectangle and distributes, the flexure strip is installed four between the spacing post.

6. The high current locking connector of claim 5, wherein: the socket shell is further provided with a cover plate for covering the mounting groove, and the cover plate is provided with a lock hole matched with the key hole.

7. The high current locking connector of claim 6, wherein: the socket is characterized in that a rotating shaft is further installed on the socket shell, a dustproof cover is connected to the rotating shaft, a torsion spring is sleeved on the rotating shaft, and the dustproof cover abuts against the cover plate through torsion of the torsion spring.

8. A high current locking connector according to any one of claims 1 to 7, wherein: the socket shell is further provided with a tension spring, the other end of the tension spring is connected with the end cover, and the end cover covers the port, close to the end cover, of the socket shell.

9. The high current locking connector of claim 8, wherein: the socket is characterized in that a connecting plate is arranged at one end, far away from the end cover, of the socket shell, a hanging piece is installed on the connecting plate, and one end of the tension spring is connected with the hanging piece.

10. The high current locking connector of claim 9, wherein: the end cover is provided with a notch, connecting arms are formed on two sides of the notch, through holes connected with the double-groove shafts are formed in the connecting arms, and the connecting arms are respectively connected with two ends of the corresponding double-groove shafts and are fixed through pin shafts.

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