CN201805051U

CN201805051U - Closely contact drop-off prevention plug and socket

Info

Publication number: CN201805051U
Application number: CN2010202148570U
Authority: CN
Inventors: 葛明坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-02
Filing date: 2010-06-02
Publication date: 2011-04-20
Anticipated expiration: 2020-06-02

Abstract

The utility model relates to a closely contact drop-off prevention plug which comprises a plug body. A plurality of conductive pins are fixed inside the plug body and partially exposed to a jointing surface of the plug body corresponding to a socket. The plug is characterized in that the plug body comprises a body casing and a press part which can move relative to the body casing and has a trend of always departing from the body casing; at least one pin is arranged on the press part; simultaneously, an upward pull hook with a hook-shaped head is also arranged at the press part; and the head of the upward pull hook is also exposed to the jointing surface of the plug body. Simultaneously, the utility model also provides a close contact drop-off prevention socket which is matched with the plug. A downward pull hook which hooks the upward pull hook is arranged in a socket body. The plug and the socket are convenient for splicing, and can not be disconnected or loosened by drag pulling force, the pins and jacks are more closely jointed under the effects of springs, the phenomenon of heat emission caused by the loose fit between the pins and the jacks is effectively avoided, and the plug and the socket are safer to use.

Description

The slip-off preventing plug and socket of tight contact

Technical field

The utility model relates to a kind of slip-off preventing plug and socket, specifically refers to the slip-off preventing plug and socket that pin and jack on the socket on a kind of plug can closely contact.

Background technology

Existing plugs and sockets, especially be applied in the plugs and sockets of workplaces such as building, decoration,, when pulling power line, be easy to plug is extracted in socket, cause the interruption of work because construction location is far away from the socket position; Return socket position plug is inserted this moment, needs the walking larger distance, cumbersome.

For this reason, people have developed drop-proof plug-and-socket.For example notification number is CN101154778A disclosed " the plug and socket of power source group of slip-off preventing ", and this plugs and sockets group comprises shell and two power pins that are pivoted in the enclosure; Wherein said power pin extends an inserting section from shell, and each is extruded with a press section to this two pin dorsad in these shell two opposite sides, and between this two pin at least one spring is set also; Also be coated with conductive copper sheet in each pin, conductive copper sheet extends pin and forms conducting end outward, and on conducting end and the socket shape of jack to be mutual concord zigzag concavo-convex.By the cooperation of laciniation in pin and the jack, prevent that plug breaks away from socket, slip-off preventing is effective.But using a period of time plug base pin can relax with cooperating of receptacle sockets, loose contact, thus cause plug, socket when work, can generate heat, use dangerous.

Summary of the invention

Technical problem to be solved in the utility model is the slip-off preventing plug and socket that the present situation at prior art provides pin and jack on the socket on a kind of plug closely to contact, thereby avoids by cooperating lax caused heating phenomenon.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this is the slip-off preventing plug of contact closely, comprise header body, a plurality of conductive base pins are fixed in the described header body and part exposes outside header body and the corresponding composition surface of socket, it is characterized in that: described header body comprise body housing and relatively this body housing displacement and and described body housing between have the press section that deviates from trend mutually all the time, at least one pin is arranged on the described press section in described a plurality of conductive base pin, simultaneously also be provided with on this press section head be hook-shaped on drag hook, and the head that should go up drag hook also exposes outside the composition surface of header body.

Push described press section and can make the relative body housing displacement in press section, after cancelling the power that is applied on the press section, the press section reset and press section and housing between deviate from and can realize by between press section and housing, elastic component being set, also can realize by the design of adopting self rubber-like material to prepare on press section and body housing and the fit structure.

Can be provided with spring between described press section and the body housing, this press section comprises the arm of force of spill spin block that becomes a header body shell part and the cavity that is arranged in described body housing that is connected with this spill spin block, this arm of force middle part is coupling in described cavity, top is connected in an end of described spring, and the bottom then fixes with the pin and the last drag hook that are arranged on the described press section.

Described body housing internal fixation has and the corresponding fixed block in described press section, the bottom of this fixed block forms the composition surface of header body with the spill spin block lower surface, the middle part and the arm of force of this fixed block are coupling, and the top of this fixed block then connects the other end of described spring.

Described pin can have three, and the pin that is arranged on the described press section is the earth pin of this plug.

For the socket that three pins are arranged, preferably, described upward drag hook and this earth pin can be made integral piece.

Be provided with spring between described press section and the body housing, this press section can also comprise the spill spin block that becomes a header body shell part and be connected mutually with this spill spin block and be positioned at the slide block of body housing, described slide block is provided with and supplies described spring one to sit up straight the groove that falls, and the pin and the last drag hook that are arranged on the described press section are fixed on this slide block.

Described pin can have four, and these four pins are " eight " font in twos and distribute, and wherein two are arranged on the described slide block, and described groove and last drag hook are between this two pin.

For convenience of the slip and the guiding of slide block, also has the protuberance of the described slide block of guiding on the described body housing madial wall.

Described press section also can be designed to following structure: its top hollow and form inverted U-shaped muscle, have a gap in the middle of the bottom of this press section and make the bottom of this press section be separated into two briquettings that deviate from mutually, described pin and the last drag hook that is arranged on the press section is separately positioned on the corresponding described briquetting.

The tight slip-off preventing socket that contacts that plugs with plug in the such scheme, comprise jack body, on this jack body and the corresponding composition surface of described header body, be provided with a plurality of jacks of ccontaining each the described conductive base pin of energy, it is characterized in that: on the composition surface of described jack body, also have auxiliary jack, being provided with and the described following drag hook of going up the drag hook hook in the jack body of auxiliary jack.

Described auxiliary jack is connected with ground wire jack in described a plurality of jacks.

Compared with prior art, the utility model press section and body housing are set to have the matching relationship that deviates from trend mutually all the time, the press section is resetted after pushing, and can make and have outer trend of opening between press section and the body housing all the time, therefore the pin that is arranged on press section and the body housing also has outer trend of opening, pin on the plug and the jack on the socket are fitted closely like this, even after using a very long time, pin and jack also can not occur relaxing cooperates phenomenon, effectively avoided using safer because pin and jack cooperate lax caused heating phenomenon; Simultaneously be arranged on the header body on drag hook and being arranged on the jack body under the cooperation at drag hook down, even misoperation is arranged or have under the situation that external force pulls, plug and socket can not break away from mutually yet.

Description of drawings

Fig. 1 is the sectional structure schematic diagram (plug and socket is in running order) of the utility model embodiment 1;

Fig. 2 is the sectional structure schematic diagram (plug and socket is in and desires disengaged position) of the utility model embodiment 1;

Fig. 3 is the planar structure schematic diagram of socket among the utility model embodiment 1;

Fig. 4 is the partial sectional view along A-A line among Fig. 1;

Fig. 5 is the half section structural representation (plug and socket is in running order) of the utility model embodiment 2;

Fig. 6 is the half section structural representation (plug and socket is in and desires disengaged position) of the utility model embodiment 2;

Fig. 7 is the floor map (after removing the press section housing) of the assembly structure of the utility model embodiment 2;

Fig. 8 is the cutaway view along B-B line among Fig. 7;

Fig. 9 is the broken section structural representation of the utility model embodiment 3.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Embodiment 1

As shown in Figures 1 to 4, this embodiment is the slip-off preventing plug and socket of the three-way tight contact of two-phase, and it comprises:

Header body 1 comprises body housing 11, and spill spin block 111 is positioned at the preceding bottom of housing 11, for constituting the part of housing 11; The rear wall of body housing cavity 12 is provided with fixed block 13, and the middle part axle of the arm of force 14 is located on the fixed block 13, and as shown in Figure 4, conflict between the top of the top of the arm of force 14 and fixed block in the two ends of spring 15, the fixedly connected spill spin block 111 in the lower end of the arm of force 14; The arm of force 14 and spill spin block 111 constitute the press section of present embodiments;

Three pins, wherein the upper end of earth pin 21 is passed spill spin block 111 and is fixed on the arm of force 14, and the part that earth pin 21 exposes outside header body 1 is " L " type, and promptly earth pin in the present embodiment and last drag hook are made one; Two other pin 22 and is the setting of " eight " font in the form of sheets each other;

Jack body 3 as shown in Figure 3, is provided with the jack and the auxiliary jack of ccontaining three pins; As depicted in figs. 1 and 2, the below of auxiliary jack and ground wire jack 31 is provided with inverted "L" shaped drag hook 33 down, can match with the earth pin on the plug to collude and close; Two jacks 32 are the setting of " eight " font mutually in addition, and position distribution is corresponding with other two pins on the plug, inserts in it for other two pins.

During use, inwardly push spill spin block 111, drive the arm of force and rotate, thereby the lower end of earth pin 21 is clockwise rotated, as shown in Figure 2, pin can be inserted into this moment in the jack in the jack body along axle 16.Plug and socket removes the power of pushing spill spin block 111 after inserting well, and under the effect of spring 15, the arm of force 14 rotates counterclockwise along axle 16, and earth pin 21 catches on down drag hook 33.At this moment, if do not push spill spin block 111, under the cooperation of earth pin 21 and following drag hook 33, even big again power can will not extracted in the socket in the plug yet; Simultaneously, the header body of fixing two other pin 22 has outside tension force a little under the effect of spring 15, make pin 22 and ccontaining its jack be fit-state closely, effectively avoided the caused heating phenomenon in the lax back of pin and jack, used safer.

Embodiment 2

To shown in Figure 8, the plugs and sockets in the present embodiment is the three-phase and four-line plugs and sockets as Fig. 5, and it comprises:

Header body 4 has body housing 41, and pushing block 411 is positioned at the upper back of body housing 41, for constituting the part of body housing 41; Be provided with slide block 43 in the cavity 42 of body housing, slide block 43 can be positioned on the bottom surface in Inner chamber 42 and fixedly connected pushing block 411 slidably; Also be provided with the protuberance 412 of guide runner on the inwall of body housing.Two pins 5 are arranged on the slide block 43, and these two pins 5 are the arrangement of " eight " font.As shown in Figure 5 and Figure 6, between these two pins 5, also be provided with drag hook 44 on " L " type on the slide block 43, last drag hook 44 parts are positioned at header body 4, and drag hook exposes outside header body 4 on it.Also be provided with groove 431 on the slide block 43, spring 45 is arranged in this groove 431 and conflicts on the wall in housing Inner chamber 42.Above-mentioned pushing block 411 and slide block 43 constitute the press section of present embodiment.

To shown in Figure 7, analysing and observe part and not analysing and observe part of this plug and socket can be symmetrical arranged along its center line as Fig. 5, and this moment, the two ends of spring 15 laid respectively in the groove of two symmetrical slide blocks; Can be conventional structure also with not analysing and observe partial design.

Jack body 6 is provided with jack 61 and the auxiliary jack 63 suitable with four pins 5 in it; As shown in Figure 5 and Figure 6, be provided with inverted "L" shaped drag hook 62 down in auxiliary jack 63, the lower end of following drag hook 62 is fixed on the wall of jack body.

During use, push pushing block 411, slide block 43 drag hook 44 in extrusion spring under the drive of pushing block 411 45 and drive slides together, and as shown in Figure 6, can successfully be inserted into pin in the jack 61 this moment.Cancel the pressing force that is applied on the pushing block 411, under the effect of spring 45 elastic force, slide block 43 reverse slide, the following drag hook 62 that is arranged in the jack 61 is caught in drag hook 44 counter motions in the drive, as shown in Figure 5.Go up drag hook if be symmetrically arranged with two on the socket, but subtend extruding slide block, thus plug is inserted in the socket.Behind the plug insertion socket, the pin that under the effect of spring 45, is the arrangement of " eight " font is squeezed, tightly be fitted on the wall of jack, the lax phenomenon of pin and jack can not occur, avoid using safer because jack 61 and pin 5 cooperate not tight caused heating; Simultaneously because the cooperating of last drag hook 44 and following drag hook 62, if do not push pushing block 411, even big again external force can not extracted pin 5 yet in jack 61.

Embodiment 3

As shown in Figure 9, this embodiment is for adopting plastic material plug and socket groups preparation, two pins, and it comprises:

Header body 7 has body housing 71, and in the cavity of the body housing 71 that the top of press section 72 is provided with, the top hollow of press section forms inverted U-shaped muscle; The bottom of press section 72 exposes outside body housing 71, thereby and have a gap 711 and make the bottom of this press section be separated into two briquettings that deviate from mutually 712 in the middle of the bottom of press section; The lower surface of these two briquettings 712 constitutes the composition surface of this header body and socket; Two pins 8 are separately positioned on two briquettings 712.Drag hook 72 two pins 8 of fitting respectively are arranged on each corresponding briquetting 712 on two " L " shapes, and the hook portion that goes up drag hook 72 exposes outside header body and the corresponding composition surface of socket.

The socket (not shown) which is provided with two jacks, and the opening of jack is bigger.

During use, hand pinches two briquettings 712 and inwardly pushes, pin 8 and last drag hook 712 are inserted in the jack on the socket, unclamp the power that is applied on the briquetting then, two briquettings 712 are opened outside under the elastic reaction that plastics self are had, at this moment, two go up drag hook 712 collude respectively socket in conjunction with panel on, pin then can be outside this tightly be fitted on the wall of jack under effect of tension force.

The part that does not relate in the present embodiment is same as the prior art.

Claims

1. tight slip-off preventing plug of contact, comprise header body, a plurality of conductive base pins are fixed in the described header body and part exposes outside header body and the corresponding composition surface of socket, it is characterized in that: described header body comprise body housing and relatively this body housing displacement and and described body housing between have the press section that deviates from trend mutually all the time, at least one pin is arranged on the described press section in described a plurality of conductive base pin, simultaneously also be provided with on this press section head be hook-shaped on drag hook, and the head that should go up drag hook also exposes outside the composition surface of header body.

2. the slip-off preventing plug of tight contact according to claim 1, it is characterized in that: be provided with spring between described press section and the body housing, this press section comprises the arm of force of spill spin block that becomes a header body shell part and the cavity that is positioned at described body housing that is connected with this spill spin block, this arm of force middle part is coupling in described cavity, top is connected in an end of described spring, and the bottom then fixes with the pin and the last drag hook that are arranged on the described press section.

3. the slip-off preventing plug of tight contact according to claim 2, it is characterized in that: described body housing internal fixation has and the corresponding fixed block in described press section, the bottom of this fixed block forms the composition surface of header body with the spill spin block lower surface, the middle part and the arm of force of this fixed block are coupling, and the top of this fixed block then connects the other end of described spring.

4. according to the slip-off preventing plug of the described tight contact of the arbitrary claim of claim 1 to 3, it is characterized in that: described pin has three, the pin that is arranged on the described press section is the earth pin of this plug, and described upward drag hook and this earth pin are made integral piece.

5. the slip-off preventing plug of tight contact according to claim 1, it is characterized in that: be provided with spring between described press section and the body housing, this press section comprises the pushing block that becomes a header body shell part and is connected mutually with this pushing block and is positioned at the slide block of body housing, described slide block is provided with and supplies described spring one to sit up straight the groove that falls, and the pin and the described drag hook of going up that are arranged on the described press section are fixed on this slide block.

6. the slip-off preventing plug of tight contact according to claim 5, it is characterized in that: described pin has four, and these four pins are " eight " font in twos and distribute, and wherein two pins are arranged on the described slide block, and described groove and last drag hook are between this two pin.

7. according to the slip-off preventing plug of claim 5 or 6 described tight contacts, it is characterized in that: the protuberance that also has the described slide block of guiding on the described body housing madial wall.

8. the slip-off preventing plug of tight contact according to claim 1, it is characterized in that: the top hollow of described press section forms inverted U-shaped muscle, make the bottom of this press section be separated into two briquettings that deviate from mutually thereby have a gap in the middle of the bottom of press section, described pin and the last drag hook that is arranged on the press section is separately positioned on the corresponding described briquetting.

9. one kind plugs the slip-off preventing socket that the back closely contacts with the described plug of claim 1, comprise jack body, on this jack body and the corresponding composition surface of described header body, be provided with a plurality of jacks of ccontaining each the described conductive base pin of energy, it is characterized in that: on the composition surface of described jack body, also have auxiliary jack, being provided with and the described following drag hook of going up the drag hook hook in the jack body of auxiliary jack.

10. the slip-off preventing socket of tight contact according to claim 9 is characterized in that: described auxiliary jack is connected with ground wire jack in described a plurality of jacks.