CN115513689A

CN115513689A - Lock wire protective cover

Info

Publication number: CN115513689A
Application number: CN202110633881.0A
Authority: CN
Inventors: 余强
Original assignee: Suzhou Fengnian Technology Co ltd
Current assignee: Suzhou Fengnian Technology Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-12-23
Anticipated expiration: 2041-06-07
Also published as: CN115513689B

Abstract

The invention discloses a wire locking protective cover which comprises a protective shell and a wire locking sleeve, wherein the protective shell is provided with a wire locking groove; the protective shell is provided with an accommodating cavity with openings at two ends, one end of the protective shell is provided with a connecting end, the surface of the connecting end is provided with external threads and at least one backstop elastic sheet, the backstop elastic sheet is positioned on one side, close to the protective shell, of the connecting end, one end of the backstop elastic sheet is fixedly connected with the connecting end, and one side, far away from a port of the connecting end, of the backstop elastic sheet is provided with a pressing bulge; the lock line cover is both ends open-ended cavity tubular structure, and lock line cover inner wall annular is provided with internal thread and inclined gear groove, and inclined gear groove is close to the one end of lock line cover, and the internal thread is close to inclined gear groove, and internal thread threaded connection is on the external screw thread, and the backstop shell fragment holds in inclined gear inslot, and the backstop shell fragment can stop the lock line cover and loosen from the link, presses to press down the arch and can make the lock line cover loosen from the link. The invention adopts a mechanical stop design to prevent the wire from loosening, realizes sealing at each joint and adopts mechanical unlocking to disassemble from the wire holder.

Description

Lock wire protection cover

Technical Field

The invention relates to the field of protection of connectors on inverters, in particular to a wire locking protective cover.

Background

The protective cover is sleeved on a connector of a general inverter, so that more functions of dust prevention and electric shock prevention are achieved, the protective cover on the current market is simple in structural design, or cannot be disassembled or is difficult to disassemble for safety, or is instable and easy to loosen, or is aged for long-term use and loosened, and personal safety is threatened if misoperation occurs;

meanwhile, due to the fact that installation and disassembly maintenance are needed, the sealing design is difficult to achieve, and the protective cover which can combine the functions of dust prevention, electricity leakage prevention, disassembly, misoperation prevention, loosening prevention, sealing and the like is more difficult to achieve.

Therefore, in combination with the above-mentioned technical problems, there is a need to provide a new technical solution.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides a lock wire protective cover which adopts a mechanical stop design, realizes sealing at each joint and adopts mechanical unlocking for disassembly, and the specific technical scheme is as follows:

a locking wire protective cover comprises a protective shell and a locking wire sleeve;

the protective shell is provided with an accommodating cavity with openings at two ends, a connecting end is arranged at one end of the protective shell, an external thread and at least one backstop elastic sheet are arranged on the surface of the connecting end, the backstop elastic sheet is close to the external thread, one end of the backstop elastic sheet is fixedly connected with the connecting end, and a pressing bulge is arranged on one side of the backstop elastic sheet, which is far away from a port of the connecting end;

the lock line cover is both ends open-ended cavity tubular structure, lock line cover inner wall annular be provided with a plurality of bevel gear grooves and with external screw thread assorted internal thread, the bevel gear groove is close to the one end of lock line cover, the internal thread is close to the bevel gear groove, the incline direction in bevel gear groove is unanimous with the incline direction of backstop shell fragment, female thread threaded connection is on the external screw thread, the backstop shell fragment holds in the bevel gear inslot, and the backstop shell fragment that holds in the bevel gear inslot can backstop lock line cover and unclamp from the connecting end, presses down the arch and can make lock line cover unclamp from the connecting end.

As a preferred embodiment of the locking wire protective cover, the other end of the stopping elastic piece is a free end, the axial direction of the stopping elastic piece is perpendicular to the axial direction of the connecting end, and the stopping elastic piece inclines towards the direction away from the connecting end.

As a preferred scheme of the locking wire protective cover, a sealing structure is arranged at one end, away from the inclined gear groove, of the locking wire sleeve, and the sealing structure can penetrate through the second cable and surround the second cable;

as the preferable scheme of the locking wire protective cover, the locking wire sleeve comprises a locking wire nut and a wire sealing bush;

the locking wire nut and the sealing wire bush are both in hollow cylindrical structures, the locking wire nut is provided with a hollow cavity, and the inclined gear groove and the internal thread matched with the external thread are arranged on the locking wire nut;

the sealing line bush holds in the cavity intracavity, the link inner wall is provided with the annular separation blade, sealing line bush one end is inconsistent with the annular separation blade, seal structure is waterproof film, the sealing line bush is provided with waterproof film on keeping away from the opening of protective housing one end, and the second cable can pass waterproof film and be surrounded by the waterproof film of book.

As the preferable scheme of the locking wire protective cover, the locking wire sleeve further comprises a wire sealing claw;

the wire sealing clamping jaw is accommodated in the hollow cavity and sleeved on the wire sealing liner in a penetrating manner, a plurality of sealing strips are annularly arranged at one end, far away from the protective shell, of the wire sealing clamping jaw, the axial direction of the sealing strips is consistent with the axial direction of the wire sealing clamping jaw, a conical hollow cavity is formed at one end, far away from the protective shell, of the hollow cavity, and the inner diameter of the conical hollow cavity is gradually reduced along the direction far away from the protective shell;

the wire locking sleeve is screwed on the connecting end, the sealing strip is inclined towards the axial direction under the extrusion of the conical cavity, and the sealing strip inclined towards the axial direction can surround the periphery of the second cable to seal the second cable.

As a preferred scheme of the locking wire protective cover, the port of the connecting end is a sawtooth-shaped port, the surface of the wire sealing claw is sleeved with an annular sleeve, one side of the annular sleeve, which is close to the connecting end, is provided with an annular sawtooth groove, the locking wire sleeve is screwed on the connecting end, and the annular sawtooth groove is matched with the sawtooth-shaped port.

As a preferred embodiment of the locking wire protective cover of the present invention, a groove is disposed on the surface of the connecting end at the position of the stopping elastic piece, the groove corresponds to the stopping elastic piece, and the pressed stopping elastic piece is accommodated in the groove.

As a preferred scheme of the locking wire protective cover, the locking wire nut, the wire sealing bush and the wire sealing claw are coaxially arranged;

the link is both ends open-ended cavity tubular structure, the link external diameter is less than the protective housing external diameter, the link internal diameter is less than hold the chamber internal diameter.

Compared with the prior art, this patent lockwire protection casing, its technical scheme has following one or more beneficial effect at least:

(1) The first cable and the second cable are arranged on the same wiring hole 211 of the current-conducting plate 2, so that the first cable and the second cable are provided with power sharing connection points, the design aims are fulfilled, the length of the current-conducting plate can be greatly saved, the cost of the current-conducting plate is saved, compared with the conventional technology, the current-conducting plate of the embodiment saves half of the cost, and the manufacturing cost of the connector is greatly reduced, so that the connector can be accepted and used by users, and is beneficial to wide popularization and use; in addition, the number of connection points and conductive threads is reduced, the loosening fault of the connection points or other fault problems are reduced, the long-term stable operation of the wire holder is facilitated, and the service life of the wire holder is further prolonged.

(2) Convenient to use, set up the fastener, can be at the first cable of pegging graft of the jack of equipment end, with fastener demountable installation on insulating pedestal, on the one hand, the latch plate of fastener contradicts in the current conducting plate, the outer end of fastener aligns the setting with the outer end of insulating pedestal, whether conflict with the backstop face through observing the wiring board of current conducting plate, whether the outer end of latch plate and current conducting plate and the outer end of insulating pedestal align etc. visual observation arrives the current conducting plate and installs at the correct position and whether the fastener is installed at the correct position, can audio-visual judgement, moreover, the operation is simple, the assembly is comparatively simple and easy, and the installation effectiveness is improved, on the other hand, the shielding plate of fastener shelters from the installation drill way, make the bolt that the cover was equipped with first cable and current conducting plate be fixed in the installation hole, the pre-installation targets in place, both made things convenient for the semi-manufactured goods of connection terminal wiring go out for the customer, only need install the second cable of outer end after the device by the customer, simultaneously also can improve the fastness in connection terminal locking installation and the use, and service life is prolonged.

(3) Functional cables, such as temperature measuring wires and the like, can be connected, so that the functional diversity of the wire holder is increased; the rib that the connection terminal both sides set up no for the protection casing is established to the cover and is played and prevent slow-witted effect, avoids misoperation to cause the error installation, thereby brings the unnecessary loss.

(4) The wire holder still is equipped with the annular seal groove and the annular groove that can nested sealing washer for can both seal design between wire holder and the equipment end, between wire holder and the protection casing, avoid the infiltration weeping, cause the cable to corrode and rust etc. help improving the life of wire holder.

(5) The protecting sheathing junction adopts mechanical backstop design, and its link is provided with the backstop shell fragment, prevents that the lockwire cover accident pine from taking off or using ageing back pine of taking off for a long time and taking off, security and stability that improve equipment used, in addition, still be provided with and press down the arch, the lockwire cover of dismantling promptly is pressed down to the locking back is manual, and need not dismantle with the help of appurtenance, the operation of being convenient for has greatly improved the convenience of using, more convenience of customers's use.

(6) The locking wire cover is provided with waterproof film, seals up around the second cable of installation, and the interval is provided with the sealing strip on the sealing wire jack catch in addition, adopts flexible design, and realizes sealed to the second cable to realize that whole sealing is waterproof, can be compatible the second cable of more specifications simultaneously, not only safe but also practical.

(7) The pothook that waterproof case set up on the cardboard must just can unblock with the help of the instrument, mechanical unlocking promptly, prevents that the maloperation from giving people the safety and bringing danger or hindering the normal operating of equipment, and this kind of design is safer.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an exploded view of a connector according to the present embodiment in use;

fig. 2 is a schematic perspective view of the connector according to the present embodiment;

fig. 3 is a schematic plan view of a part of the components of the wire holder according to the present embodiment;

FIG. 4 isbase:Sub>A schematic sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic plan view showing a part of the components of the wire holder according to the present embodiment;

FIG. 6 is a schematic view of the cross-sectional structure of FIG. 5 taken along the line B-B;

fig. 7 is a schematic plan view of the wire holder according to the present embodiment;

FIG. 8 is a schematic view of the cross-sectional structure of FIG. 7 taken along the line C-C;

fig. 9 is a schematic perspective view of an insulation seat body according to an embodiment;

fig. 10 is a schematic perspective view of another direction of the insulation base body according to the embodiment;

fig. 11 is a perspective view showing one direction of the card media of this embodiment;

fig. 12 is a schematic perspective view of another direction of the card media of this embodiment;

fig. 13 is a schematic perspective view of the conductive plate and the clinch nut according to the embodiment;

fig. 14 is an exploded view of the conductive plate and clinch nut of the present embodiment;

fig. 15 is a schematic perspective view of the protective cover according to the embodiment;

FIG. 16 is a schematic view of the cross-sectional structure of FIG. 15 taken along line D-D;

FIG. 17 is a schematic perspective view of the protective housing of the present embodiment in one direction;

fig. 18 is a schematic perspective view of the protective housing according to the present embodiment in another direction;

fig. 19 is a schematic perspective view of the locknut according to the present embodiment;

fig. 20 is a schematic perspective view of the wire sealing bush according to the present embodiment;

fig. 21 is a schematic perspective view of the thread sealing claw according to the present embodiment.

Wherein, 1-wire holder, 2-conductive plate, 4-fastener, 5-protective cover, 6-lockwire nut, 7-wire-sealing bush, 8-wire-sealing jaw, 10-insulating base, 101-fixing plate, 1011-fixing hole, 1012-fastener, 1013-fastener, 1014-annular sealing groove, 11-jack, 12-wire groove, 121-wire chute, 122-first wire groove, 123-mounting hole, 1231-receiving hole, 124-shielding groove, 1241-shielding chute, 125-placing block, 1251-stop surface, 1252-conductive groove, 1253-nut groove, 126-barrier strip, 127-annular groove, 128-first rib structure, 129-second rib structure, 13-functional wire hole, 21-wiring board, 211-wiring hole, 212-interference surface, 213-convex edge, 22-connecting plate, 23-functional line plate, 231-round hole, 31-first cable, 311-first cable terminal, 321-second cable terminal, 33-functional cable, 331-functional cable terminal, 34-rivet nut, 341-embossing tooth, 41-tongue plate, 42-shielding plate, 421-shielding elastic sheet, 4211-shielding bulge, 422-sliding block, 43-connecting block, 50-protective shell, 501-clamping groove, 502-clamping hole, 51-accommodating cavity, 52-connecting end, 521-stopping elastic sheet, 5211-pressing bulge, 522-external thread, 523-groove, 524-annular baffle and 525-zigzag port, 61-inclined gear groove, 62-internal thread, 63-hollow cavity, 71-waterproof film, 81-sealing strip, 82-annular sleeve and 821-annular sawtooth groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. 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.

In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "provided," "connected," "mounted," "sleeved," "opened," "fixed," and the like are to be construed broadly, e.g., as fixed or detachable connections or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 to 21, as shown in fig. 1 to 21, the present invention discloses a locking wire protection cover applied to a connector, and the present embodiment takes the connector as an example to explain a technical scheme of the locking wire protection cover and an application thereof to the connector.

The connector comprises a wire holder 1 and a protective cover 5, as shown in fig. 1-2, the wire holder 1 and the protective cover 5 are coaxially arranged, a plurality of first cables 31 and a plurality of second cables are installed in the wire holder 1, and the first cables 31 and the second cables are installed on the same wiring hole 211 of the conductive plate 2, so that the first cables 31 and the second cables have power sharing connection points; in addition, connection points and conductive threads are reduced, and the problem of loosening and loosening faults of the connection points or other faults is also reduced, so that the long-term stable operation of the wire holder is facilitated, and the service life of the wire holder is further prolonged; on the other hand, the protection casing that sets up has the leakproofness, and the protection casing self has the leakproofness, with insulating pedestal 10 sealing connection, when the second cable stretches into the protection casing with the second cable is sealed, and insulating pedestal 10 sealing fixation in equipment end, omnidirectional sealed design, the protection second cable that more can be fine is not corroded rust etc. by environmental impact, can prolong the life of equipment and second cable better. In the present embodiment, a 5-core 50A bulkhead connector is taken as an example for explanation, and the 5-core 50A bulkhead connector is mainly used for cable connection on an inverter.

The wire holder 1 comprises an insulating holder body 10, a conductive plate 2 and a locking member, as shown in fig. 3-14;

one end of the insulating base 10 is provided with a plurality of insertion holes 11 along the axial direction, as shown in fig. 9-10, the surface of the insulating base 10 is provided with a plurality of wiring grooves 12 along the axial direction, the wiring grooves 12 are located at one end of the insulating base 10 far away from the insertion holes 11, the insertion holes 11 correspond to the wiring grooves 12 one by one, and the insertion holes 11 are communicated with the wiring grooves 12; the cover is equipped with fixed plate 101 on the insulating pedestal 10, a plurality of fixed orifices 1011 has been seted up on the fixed plate 101, insulating pedestal 10 is fixed in on the device, jack 11 holds and faces in the device, set up cardboard 1012 perpendicularly on the fixed plate 101, cardboard 1012 is kept away from fixed plate 101 one end and is provided with pothook 1013, cardboard 1012 axis direction with insulating pedestal 10 axis direction is unanimous, cardboard 1012 and wiring groove 12 are located same one side of fixed plate 101, the one end that the current-conducting plate 2 was kept away from to fixed plate 101 is provided with at least one ring seal groove 1014, ring seal groove 1014 and jack 11 are located same one side of fixed plate 101, nested second sealing washer in the ring seal groove 1014, fixed plate 101 fixed mounting is on the device, and second sealing washer pedestal seals insulating pedestal 10 on insulating pedestal 10. In the example, a plurality of the insertion holes 11 are arranged in parallel, a plurality of the wire connecting grooves 12 are arranged in parallel, 5 insertion holes 11 are provided, and 5 wire connecting grooves 12 are provided. The wire holder is also provided with an annular sealing groove in which a sealing ring can be nested, so that the wire holder is in sealing connection with the equipment end, water seepage and liquid seepage are avoided, the cable is prevented from being corroded and rusted, and the service life of the wire holder is prolonged.

The conductive plate 2 is fixedly accommodated in the wiring slot 12, the conductive plate 2 is provided with a wiring hole 211, the first cable 31 passes through the insertion hole 11 and is accommodated in the wiring slot 12, the second cable is accommodated in the wiring slot 12, the first cable terminal 311 and the second cable terminal 321 correspond to the wiring hole, and the locking member passes through the wiring hole to electrically connect the first cable 31 and the second cable to the conductive plate 2, in the example, the conductive plate 2 is a copper conductive plate;

the protective cover 5 is provided with an accommodating cavity 51 with openings at two ends, the second cable penetrates through one opening end to extend into the accommodating cavity 51 and is electrically connected with the conductive plate 2, one opening end of the protective cover 5 is provided with a clamping groove 501, the axial direction of the clamping groove 501 is consistent with the axial direction of the protective cover 5, a clamping hole 502 is formed in the surface of the clamping groove 501, one end, close to the wiring groove, of the insulating base 10 is accommodated in the accommodating cavity, the clamping plate 1012 is accommodated in the clamping groove 501, the clamping hook 1013 is clamped in the clamping hole 502, and the first opening end of the protective cover 5 is abutted against the fixed plate 101; the auxiliary tool is inserted into the locking hole 502 to mechanically unlock the hook 1013, the hook 1013 is retracted into the locking groove 501, and the shield 5 can be taken out from the insulating base 10. The pothook that waterproof case set up on the cardboard must just can unblock with the help of the instrument, and mechanical unlocking prevents that the maloperation from giving people the safety and bringing danger or hindering the normal operating of equipment, and this kind of design is safer.

The side walls of the two sides of the wiring slot 12 are oppositely provided with wiring sliding slots 121, the axial direction of the wiring sliding slots 121 is consistent with the axial direction of the insulating base 10, the conductive plate 2 is accommodated in the wiring sliding slots 121 of the wiring slot 12, and the conductive plate 2 extends into one end of the wiring sliding slots 121 far away from the insertion holes 11 and moves towards the insertion holes 11 until the conductive plate moves to the tail end of the wiring sliding slots 121; the bottom of the wiring slot 12 is provided with a first wire slot 122, the wiring slot 12 is communicated with the jack 11 through the first wire slot 122, a first cable terminal 311 passes through the jack 11 and is accommodated in the first wire slot, the first cable 31 is positioned below the conductive plate 2, and the second cable terminal 321 is placed on the conductive plate 2. In the example, the first cable terminal 311 is a first lug, the second cable terminal 321 is a second lug, and the first lug, the wiring hole and the second lug correspond; a plurality of mounting holes 123 are formed in one side, away from the wiring slot 12, of the insulating base 10, the mounting holes 123 correspond to the wiring slot 12 one by one, the mounting holes 123 are communicated with the first wiring slot 122, the mounting holes 123 correspond to the wiring holes 211, and the locking piece fixes the conductive plate 2 in the wiring slot 12 through the mounting holes 123; a plurality of shielding grooves 124 are formed in one end, away from the jack 11, of the insulating base 10, the axial direction of the shielding grooves 124 is consistent with the axial direction of the insulating base 10, the shielding grooves 124 correspond to the wiring grooves 12 one by one, and the mounting holes 123 are communicated with the shielding grooves 124 and the wiring grooves 12;

the locking member includes a bolt and a nut, the mounting hole 123 between the first wire groove 122 and the shielding groove 124 is a receiving hole 1231, the receiving hole 1231 is matched with a tail end of the bolt, in an example, the bolt is a hexagonal bolt, the bolt includes a hexagonal bolt tail end, and the receiving hole 1231 is a hexagonal body, of course, the tail end of the bolt is not limited to the hexagonal body, and may be any non-circular body as long as the tail end can be received in the receiving hole 1231 and cannot rotate; the bolt passes first connection lug, wiring hole 211 in proper order from mounting hole 123, the bolt tail end holds in accommodation hole 1231, the cover is worn on the bolt to second connection lug, and the nut is fixed in on the bolt, all with first connection lug, second connection lug and current conducting plate 2 fixed connection to realize the electric connection of first cable 31 and second cable.

The wire holder 1 further comprises a clamping member 4, as shown in fig. 11-12, the clamping member 4 can abut against the conductive plate 2 in the wire connecting slot, and the clamping member 4 can stop the locking member in the wire connecting hole 211. The card member 4 comprises a tongue plate 41, a shielding plate 42 and a connecting block 43, one end of the connecting block 43 is fixedly connected with the tongue plate 41, one end of the connecting block 43 is fixedly connected with the shielding plate 42, the tongue plate 41 and the shielding plate 42 are arranged in parallel, the tongue plate 41 and the shielding plate 42 are positioned on the same side of the connecting block 43, the tongue plate 41 is accommodated in the wiring chute 121 and is abutted against the conductive plate 2, the shielding plate 42 is accommodated in the shielding groove 124, one end of the shielding plate 42, which is far away from the connecting block 43, corresponds to the wiring hole 211, one side of the shielding plate 42, which is far away from the connecting block 43, is provided with a shielding protrusion 4211, the shielding protrusion 4211 is arranged on the shielding elastic plate 421, the shielding protrusion 4211 is provided with an inclined plane and a vertical plane perpendicular to the shielding protrusion 4211, the inclined plane is positioned on one side of the shielding protrusion 4211, the inclined plane faces the direction far away from the inserting hole 11, and the inclined plane faces the direction far away from the shielding plate 42; one side of the mounting hole 123 far away from the insertion hole 11 is a shielding surface, the shielding plate 42 is accommodated in the shielding groove 124, and the vertical surface abuts against the shielding surface, so that the shielding plate 42 is fastened in the shielding hole. When the card member 4 is taken out, the shielding protrusion 4211 is pressed, the shielding protrusion 4211 retracts into the shielding groove 124, and the card member 4 can be detached from the insulating base 10. In addition, preferably, a sliding block 422 is disposed on a side wall of the shielding plate 42 close to the connecting block 43, shielding sliding chutes 1241 are oppositely disposed on two side walls of the shielding groove 124, and the sliding block 422 is accommodated in the shielding sliding chutes 1241. Preferably, the side wall of the shielding plate 42 close to the connecting block 43 is provided with a sliding block 422, the side walls of the two sides of the shielding groove 124 are provided with shielding sliding grooves 1241 in a facing manner, and the sliding block 422 is accommodated in the shielding sliding grooves 1241. The sliding block 422 and the shielding sliding groove 1241 are provided to enable the shielding plate 42 to smoothly extend into and withdraw from the shielding groove 124.

Connecting block holding tank has still been seted up at the connecting block mounted position to the terminal groove bottom, the connecting block holds in the connecting block holding tank, and in the example, the connecting block holding tank intercommunication wiring spout with hide the groove.

Set up the fastener, can be at the first cable of pegging graft of the jack of equipment end, with fastener demountable installation on insulating pedestal, on the one hand, the block tongue board of fastener is contradicted in the current conducting plate, the outer end of fastener aligns the setting with the outer end of insulating pedestal, whether conflict with the backstop face through the wiring board of observing the current conducting plate, whether conflict and the outer end of fastener and the outer end of insulating pedestal are aligned etc. visual observation to the current conducting plate and whether install at the correct position and the fastener is installed at the correct position, can audio-visual judgement, moreover, the operation is simple, the assembly is comparatively simple and easy, on the other hand, the shielding plate of fastener shelters from the installation drill way, make the bolt fastening who overlaps first cable and current conducting plate in the mounting hole, the pre-installation targets in place, both made things convenient for the customer of semi-manufactured goods shipment of connection terminal wiring, the customer only need install the second cable of outer end after taking the device can, simultaneously also can improve the fastness in connection terminal locking installation and the use, and service life is prolonged.

In a preferred embodiment, one end of the insulating base 10 is further provided with a plurality of function line holes 13 along an axial direction, the plurality of function line holes 13 are arranged in parallel, in an example, there are 5 function line holes 13, the function line holes 13 and the insertion holes 11 are located on the same end surface of the insulating base 10, the function line holes 13 are located above the insertion holes 11, the function line holes 13 are communicated with the wiring grooves 12, the insulating base 10 further includes a placing block 125, the placing block 125 is located between the insertion holes 11 and the function line holes 13, one end of the placing block 125 close to the wiring holes 211 is a stopper surface 1251, one end of the placing block 125 close to the wiring holes 211 is provided with a conductive groove 1252, and the bottom of the conductive groove 1252 is provided with a nut groove 1253. In the example, the functional cable 33 is an NTC temperature measurement wire.

The conducting plate 2 includes wiring board 21, connecting plate 22 and function line board 23, as shown in fig. 13-14, the one end of connecting plate 22 is connected with wiring board 21 perpendicularly, the other end of connecting plate 22 is connected with function line board 23 perpendicularly, wiring board 21 and function line board 23 are located the both sides of connecting plate 22, wiring hole 211 has been seted up on the wiring board 21, the width of connecting plate 22 is less than the width of wiring board 21, round hole 231 has been seted up on the function line board 23, function line board 23 holds in conducting groove 1252, wiring board 21 is close to the one end of connecting plate 22 for conflict face 212, conflict face 212 with backstop face 1251 is inconsistent, and it is inconsistent with backstop face 1251 to observe conflict face 212, then can judge that conducting plate 2 has installed at the correct position, otherwise, if leave the space between conflict face 212 and the backstop face 1251, then conducting plate 2 has not installed at the correct position yet, can cause wiring hole 211 and accommodation hole 1231 to misplace, and then the bolt can's unable accommodation hole, first wiring nose, wiring hole 211 and second wiring nose, wiring nose are crossed in proper order to pass. Preferably, the long side of the wiring board 21 is oppositely provided with a convex edge 213, the convex edge 213 is in interference fit with the wiring chute 121, and the wiring board 21 is fixed in the wiring chute 121.

The function cable terminal 331 is provided with a function wire connection lug, and the function cable 33 is placed on the function wire board 23 through the function wire hole 13, which corresponds to the circular hole 231.

Functional cables, such as temperature measuring wires and the like, can be connected, so that the functional diversity of the wire holder is increased; the rib that the connection terminal both sides set up no for the protection casing is established to the cover and is played and prevent slow-witted effect, avoids misoperation to cause the error installation, thereby brings the unnecessary loss.

The photo-matching functional bolt comprises a press-riveting nut 34 and a functional bolt matched with the press-riveting nut 34, wherein the press-riveting nut 34 comprises embossing teeth 341, the embossing teeth 341 are pressed in the round hole 231, the press-riveting nut 34 is positioned on one side, close to the wiring board 21, of the functional wiring board 23, the press-riveting nut 34 is contained in a nut groove 1253, and the functional bolt sequentially penetrates through a functional wiring nose and the round hole 231 and is fixed in the press-riveting nut 34.

The lateral walls of the two sides of the wiring slot 12 are provided with barrier strips 126 relatively, the axial direction of the barrier strips 126 is consistent with the axial direction of the insulating base 10, the barrier strips 126 are located above the conductive slots, and the functional wire board 23 can be pressed by the barrier strips 126 in the conductive slots.

Preferably, the insulating base 10 is provided with at least one annular groove 127, the annular groove 127 and the conductive plate 2 are located on the same side of the fixing plate 101, a first sealing ring is nested in the annular groove 127, one end of the insulating base 10, where the conductive plate 2 is installed, is accommodated in the accommodating cavity 51, and the first sealing ring can seal the protective cover 5 on the insulating base 10. The wire holder is also provided with an annular groove capable of being nested with the sealing ring, so that the wire holder is hermetically connected with the protective cover, water seepage and liquid seepage are avoided, the cable is prevented from being corroded and rusted, and the service life of the wire holder is prolonged.

The protective cover 5 comprises a protective shell 50 and a wire locking sleeve; the protective housing 50 and the wire sleeve are coaxially arranged, as shown in fig. 15-21;

the protective housing 50 has an accommodating cavity 51 with two open ends, as shown in fig. 16 to 18, one end of the protective housing 50 is provided with a connecting end 52, the surface of the connecting end 52 is provided with an external thread 522 and at least one stopper elastic piece 521, the stopper elastic piece (521) is close to the external thread (522), of course, as shown in fig. 17, the stopper elastic piece 521 is located on one side of the external thread 522 away from a port of the connecting end 52, one end of the stopper elastic piece 521 is fixedly connected with the connecting end 52, the other end of the stopper elastic piece 521 is a free end, the axial direction of the stopper elastic piece is perpendicular to the axial direction of the connecting end 52, the stopper elastic piece is inclined towards the direction away from the connecting end 521, one side of the stopper elastic piece 521 away from the port of the connecting end 52 is provided with a pressing protrusion 5211, and the port of the connecting end 52 is a saw-toothed port 525; preferably, a groove 523 is formed in the position of the stop elastic piece 521 on the surface of the connecting end, the groove 523 corresponds to the stop elastic piece 521, and the pressed stop elastic piece 521 is accommodated in the groove 523.

The lockwire sleeve is of a hollow cylindrical structure with openings at two ends, a plurality of inclined gear grooves 61 and internal threads 62 matched with the external threads are annularly arranged on the inner wall of the lockwire sleeve, the inclined gear grooves 61 are close to one end of the lockwire sleeve, the internal threads are close to the inclined gear grooves 61, the inclination direction of the inclined gear grooves 61 is consistent with the inclination direction of the stop elastic pieces 521, the internal threads 62 are in threaded connection with the external threads 522, the stop elastic pieces 521 are contained in the inclined gear grooves 61, the stop elastic pieces 521 contained in the inclined gear grooves 61 can stop the lockwire sleeve from being loosened from the connecting end, and the lockwire sleeve can be loosened from the connecting end by pressing the pressing protrusion 5211; one end of the wire locking sleeve, which is far away from the inclined gear groove 61, is provided with a sealing structure, and the sealing structure can penetrate through the second cable and surround the second cable;

the wire locking sleeve comprises a wire locking nut 6, a wire sealing bush 7 and a wire sealing claw 8;

the locking wire nut 6, the sealing wire bush 7 and the sealing wire clamping jaw 8 are all of hollow cylindrical structures, the locking wire nut 6, the sealing wire bush 7 and the sealing wire clamping jaw 8 are coaxially arranged, the locking wire nut 6 is provided with a hollow cavity 63, as shown in fig. 19, the locking wire nut 6 is provided with an inclined gear groove 61 and an internal thread 62 matched with an external thread, the inclined gear groove 61 is close to one end of the locking wire nut 6, and the internal thread is close to the inclined gear groove 61;

the wire sealing bush 7 is accommodated in the hollow cavity 63, as shown in fig. 20, the inner wall of the connecting end is provided with an annular blocking piece 524, one end of the wire sealing bush 7 is abutted to the annular blocking piece 524, the sealing structure is a waterproof film 71, the opening at one end of the wire sealing bush 7, which is far away from the protective shell 50, is provided with the waterproof film 71, and the second cable can pass through the waterproof film 71 and be surrounded by the rolled waterproof film 71.

The wire sealing jaw 8 is accommodated in the hollow cavity 63, as shown in fig. 21, the wire sealing jaw 8 is sleeved on the wire sealing bush 7, a plurality of sealing strips 81 are annularly arranged at one end, away from the protective housing 50, of the wire sealing jaw 8, the axial direction of the sealing strips 81 is consistent with the axial direction of the wire sealing jaw 8, the hollow cavity 63 is a conical hollow cavity at one end, away from the protective housing 50, of the hollow cavity 63, and the inner diameter of the conical hollow cavity is gradually reduced along the direction away from the protective housing 50; the wire locking sleeve is screwed on the connecting end 52, the sealing strip 81 is inclined towards the axial direction under the extrusion of the conical cavity, and the sealing strip 81 inclined towards the axial direction can surround the second cable to seal the second cable. The surface of the wire sealing clamping jaw 8 is sleeved with an annular sleeve 82, one side of the annular sleeve 82 close to the connecting end 52 is provided with an annular sawtooth groove 821, the wire locking sleeve is screwed on the connecting end 52, and the annular sawtooth groove 821 is matched with the sawtooth-shaped port; the end of the sealing line claw 8 far away from the sealing strip 81 is arranged between the connecting end and the sealing line bushing 7.

In a preferred embodiment, one side of the insulation seat body 10 close to the wire connecting slot is provided with a first rib structure 128 along the axial direction, the other side of the insulation seat body 10 close to the wire connecting slot is provided with a second rib structure 129 along the axial direction, and the shapes, positions and/or spacing distances of the first rib structure 128 and the second rib structure 129 are not consistent; the inconsistent shape, position and/or spacing distance of the first rib structure 128 and the second rib structure 129 can play a fool-proof role to prevent the protection shell 50 from being installed wrongly, although the first rib structure 128 and the second rib structure 129 are not necessarily designed differently, and the first rib structure 128 and the second rib structure 129 do not have the fool-proof role and can also be regarded as a non-preferred scheme.

The inner wall of the protective shell 50 is provided with a first groove structure at a corresponding position of the first rib structure 128, the first groove structure is matched with the first rib structure 128, the first rib structure 128 is contained in the first groove structure, the inner wall of the protective shell 50 is provided with a second groove structure at a corresponding position of the second rib structure 129, the second groove structure is matched with the second rib structure 129, and the second rib structure 129 is contained in the second groove structure.

This patent the locking wire protection casing have following one or more beneficial effect:

(1) The first cable and the second cable are arranged on the same wiring hole 211 of the conducting plate 2, so that the first cable and the second cable are provided with power sharing connection points, the length of the conducting plate can be greatly saved, the cost of the conducting plate is saved, compared with the conventional technology, the conducting plate of the embodiment saves half of the cost, and the manufacturing cost of the connector is greatly reduced, so that the connector can be accepted and used by users, and is beneficial to wide popularization and use; in addition, the number of connection points and conductive threads is reduced, the loosening fault of the connection points or other fault problems are reduced, the long-term stable operation of the wire holder is facilitated, and the service life of the wire holder is further prolonged.

(2) Convenient to use, set up the fastener, can be at the first cable of pegging graft of the jack of equipment end, with fastener demountable installation on insulating pedestal, on the one hand, the latch plate of fastener contradicts in the current conducting plate, the outer end of fastener aligns the setting with the outer end of insulating pedestal, whether conflict with the backstop face through observing the wiring board of current conducting plate, whether the wiring board of latch plate and current conducting plate contradicts and whether the outer end of fastener aligns etc. direct-viewing arrives the current conducting plate and install at the correct position and the fastener is installed at the correct position, can direct-viewing judgement, moreover, the steam generator is simple to operate, the assembly is comparatively simple and easy, on the other hand, the shielding plate of fastener shelters from the installation orifice, make the cover be equipped with in the mounting hole with the bolt fixation of first cable and current conducting plate, the pre-installation targets in place, both make things convenient for the semifinished product shipment of connector base wiring to give the customer, only need install the second cable of outer end after the device can, also can improve the fastness in connector base locking installation and the use simultaneously, prolonged service life.

(3) Functional cables, such as temperature measuring wires and the like, can be connected, so that the functional diversity of the wire holder is increased; the wire holder both sides set up the rib not for the protection casing is established to the cover plays and prevents slow-witted effect, avoids misoperation to cause the error installation, thereby brings the unnecessary loss.

(5) Protective housing junction adopts mechanical backstop design, and its link is provided with the backstop shell fragment, prevents that the unexpected pine of lock line cover from taking off or using ageing back pine of taking off for a long time and taking off, and the security and the stability that improve equipment used in addition, still be provided with and press down the arch, and the lock line cover can be dismantled promptly to manual pressing down after the locking, and need not dismantle with the help of appurtenance, and the operation of being convenient for has greatly improved the convenience of using, more convenience of customers's use.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "yet another embodiment," "other embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention and that variations, modifications, and alterations to the above embodiments may occur to those of ordinary skill in the art and are within the scope of the present invention.

Claims

1. The locking wire protective cover is characterized by comprising a protective shell (50) and a locking wire sleeve;

the protective shell (50) is provided with an accommodating cavity (51) with two open ends, one end of the protective shell (50) is provided with a connecting end (52), the surface of the connecting end (52) is provided with an external thread (522) and at least one stopping elastic sheet (521), and one side, away from the port of the connecting end (52), of the stopping elastic sheet (521) is provided with a pressing bulge (5211);

the lock line cover is both ends open-ended cavity tubular structure, lock line cover inner wall annular be provided with a plurality of inclined gear grooves (61) and with external screw thread assorted internal thread (62), inclined gear groove (61) are close to the one end of lock line cover, internal thread (62) threaded connection is on external screw thread (522), backstop shell fragment (521) hold in inclined gear groove (61), and backstop shell fragment (521) that holds in inclined gear groove (61) can stop the lock line cover and loosen on the joint, presses to press protruding (5211) and can make the lock line cover loosen on the joint.

2. The lockwire shield cover according to claim 1, characterized in that the stopper spring (521) is close to the external thread (522), one end of the stopper spring (521) is fixedly connected with the connecting end (52), the other end of the stopper spring (521) is a free end, the axial direction of the stopper spring (521) is perpendicular to the axial direction of the connecting end (52), and the stopper spring (521) inclines towards the direction away from the connecting end (52);

the internal thread is close to the inclined gear groove (61), and the inclined direction of the inclined gear groove (61) is consistent with the inclined direction of the stop elastic sheet (521).

3. The lockwire shield according to claim 2, wherein the end of the lockwire sleeve remote from the bevel gear slot (61) is provided with a sealing structure that is capable of passing through and around the second cable.

4. The lockwire shield according to claim 3, wherein the lockwire sleeve comprises a lockwire nut (6) and a lockwire bushing (7);

the lockwire nut (6) and the wire sealing bush (7) are both of hollow cylindrical structures, the lockwire nut (6) is provided with a hollow cavity (63), and the inclined gear groove (61) and the internal thread (62) matched with the external thread are arranged on the lockwire nut (6);

seal line bush (7) and hold in well cavity (63), the link inner wall is provided with annular separation blade (524), seal line bush (7) one end is inconsistent with annular separation blade (524), seal structure is water proof membrane (71), seal line bush (7) are kept away from and are provided with water proof membrane (71) on the opening of protecting sheathing (50) one end, and the second cable can pass water proof membrane (71) and be surrounded by the water proof membrane (71) of book.

5. The lockwire boot of claim 4, wherein the lockwire cover further comprises a lockwire pawl (8);

the wire sealing clamping jaw (8) is accommodated in the hollow cavity (63), the wire sealing clamping jaw (8) penetrates through the wire sealing lining (7), a plurality of sealing strips (81) are annularly arranged at one end, away from the protective shell (50), of the wire sealing clamping jaw (8), the axial direction of each sealing strip (81) is consistent with that of the wire sealing clamping jaw (8), one end, away from the protective shell (50), of the hollow cavity (63) is a conical hollow cavity, and the inner diameter of the conical hollow cavity is gradually reduced along the direction away from the protective shell (50);

the wire locking sleeve is screwed on the connecting end (52), the sealing strip (81) is inclined towards the axial direction under the extrusion of the conical cavity, and the sealing strip (81) inclined towards the axial direction can surround the periphery of the second cable to seal the second cable.

6. The lockwire protective cover according to claim 5, characterized in that the port of the connecting end (52) is a serrated port (525), the surface of the lockwire clamping jaw (8) is sleeved with an annular sleeve (82), one side of the annular sleeve (82) close to the connecting end (52) is provided with an annular serrated groove (821), the lockwire sleeve is screwed on the connecting end (52), and the annular serrated groove (821) is matched with the serrated port.

7. The lockwire shield according to claim 2, wherein the connecting end surface is provided with a groove (523) at the position of the stopper shrapnel (521), the groove (523) corresponds to the stopper shrapnel (521), and the pressed stopper shrapnel (521) is accommodated in the groove (523).

8. The lockwire shield according to claim 5, characterized in that the lockwire nut (6), the lockwire bush (7) and the lockwire claw (8) are all coaxially arranged;

link (52) are both ends open-ended cavity tubular structure, link (52) external diameter is less than protective housing (50) external diameter, link (52) internal diameter is less than hold chamber (51) internal diameter.