CN1193464C - Fixing device for pin of plug adapter - Google Patents

Abstract

The present invention relates to a fixing device for plug pins, which is mainly formed by assembling a holding head matched with an elastic sheet, and is used by matching a jack of a socket, wherein a gap is respectively formed at both sides of the middle section of the plug pin; both sides of the front section of the elastic sheet are provided with outward bent protuberance sections corresponding to the gaps of the plug pin; the elastic sheet is arranged around the side edge of the plug pin, and the rear section of the elastic sheet is positioned in a plug; thus, when the plug is inserted, the protuberance section or the elastic sheet with elastic stress or the protuberance part of an elastic coating sheet is slightly expended, and is clamped at the top of the inner margin wall of the jack of the socket so that the plug and the socket are clamped and positioned.

Description

The fixture of the pin of plug

The present invention is about the fixture of the pin of plug.

Electrical home appliances all utilizes attaching plug to use by relating to power taking power in the socket at present, therefore the utilization of electric power has become the some of all family lives, and when generally the attaching plug of electrical appliance is inserted in socket on the market, its pin is the folder power of conductive reed and fixing in the mat socket only, use initial stage fixed effect still claims well, so with the passing of time conductive reed then can produce lax slightly situation because of long-term plant of the pin of attaching plug, cause the locating effect variation, easy accidental, this moment is if connect information, relevant devices such as electrical equipment, suddenly outage except that causing the meaningless puzzlement of user, also causes the influence of degree varies to the device systems stability; In addition, if a pair of three changeover plug is inserted in socket, and three groups of jacks on it are respectively planted during the attaching plug of electrical appliance, if the pin of this changeover plug does not have enough bed knifes, can't be anchored on the socket, then desire to pull out in the attaching plug process of unloading wherein on one group of jack, very easily break away from socket together with changeover plug, this measure is handed over and is caused other two electrical appliances to cut off the power supply suddenly, increases user's inconvenience on foot.

In addition, some changeover plugs of a pair of three 9, but be to hand over its pin 92 positions to be set as the turn kenel, as shown in figure 20, in appropriate location be arranged with an accommodation space with group establish can appropriate positioning of rotating spill spin block 91, wherein pin 92 utilizes rivet 94 direct riveteds with the consolidation style of conductive reed 93, makes pin 92 and conductive reed 93 be the kenel that is connected; Mat it, fitting can be according to the actual needs of pulling of inserting, the appropriateness plate changes pin 92 strength interlocks and places piece 91 to be inserted in the jack of socket, yet this kind interleave pin 92 and conductive reed 93 are directly used the mode of rivet 94 riveted joints, after its riveted joint is finished, two kinds of situations of normal generation, one is pin 92 and conductive reed 93 touching position tensions, it two contacted loose for pin 92 with conductive reed 93, these two kinds of situations hand over cause the people when switching pin 92 interlock spill spin blocks 91, generation must be executed gravity side and get switching or only execute the slight loosening phenomenon of i.e. rotation, and it is smooth and easy promptly adjusting the process of pin 92 angles non-.

So, do not improve part at attaining in above-mentioned changeover plug 9 uses, then there is the dealer when riveted joint, with conductive reed 93 corresponding joints one packing ring 95 (seeing also Figure 21) to be set at pin 92, utilize a rivet 94 conductive reed 93 that stretches through again, packing ring 95 and pin 92 and mutually the riveted joint, the friction that produces during conductive reed 93 turns, so adjust going up in rotation, pin 92 do not have too tightly or the problem of pine too, so, this packing ring 95 is a tiny element, its process that is arranged in the process of conductive reed 93 and pin 92 and rivet 94 riveteds is rather complicated, must be very careful, in the man-hour of manufacturing, cost can not effectively reduce in invisible the increasing.

The present invention's main purpose promptly is to provide a kind of fixture of pin of plug, and it utilizes the protrusion section of elastic strip body, but and clip in the jack inner wall top of socket, and tool to insert the fixed effect of pulling good, and difficult drop-off.

For reaching above-mentioned purpose, solution of the present invention is: plug is provided with pin, and it is established by plug and pin cooperation elastic strip body group thereof and forms, and elastic strip body is adjacent to pin two sides, and one of elastic strip body and pin end all is fixed on the plug; Pin is each moulding one breach of two side places in the stage casing; Elastic strip body generally is the U type, is set as the protrusion section of outside bending in the appropriate location of the corresponding pin breach of leading portion two sides; The free end of elastic strip body is positioned at the breach of pin, and the protrusion section of elastic strip body is suitable be stretched in the breach of pin by external force pressure.

Wherein section two side places respectively establish a recess after the pin of plug, and the recess moulding concave section of the corresponding pin of elastic strip body back segment two sides.

Solution of the present invention is also: plug is provided with pin, and it cooperates the elastic strip body group to establish by the pin of plug to form; Wherein the pin of plug in the stage casing each moulding one breach of two side places; Elastic strip body has the protrusion part that the corresponding pin breach with of a canned paragraph forms outside bending, and this protrusion part possesses pressure by elasticity, and this elastic strip body is fixed in side outside the above-mentioned breach.

Solution of the present invention is also: plug is provided with pin, and cooperates other conductive reeds and implement, and it cooperates elasticity to cover the sheet group by the pin of plug to establish and form; Wherein the pin of plug in the stage casing each moulding one breach of two side places, and pin back segment place establishes an open-work; Elasticity is covered sheet and is set as to the curved protrusion part of outer arc in the indentation, there of the corresponding pin of leading portion two sides, and is connected with a lateral plate in back segment, the convex body of lateral plate central authorities protuberantia moulding one tool perforation; This elasticity is covered sheet and is nested with pin section afterwards, and pin covers sheet together with elasticity and is articulated in other conductive reeds, and above-mentioned convex body is suitable to be situated between between pin and conductive reed.

Solution of the present invention is also: cooperate the elastic strip body group to establish by plug and form, wherein, the pin moulding breach of plug, and elastic strip body has a flat segments and forms the protrusion part of outside bending in corresponding pin breach, this protrusion part possesses pressure by elasticity, the breach of pin is located at the broadside of pin, and this breach runs through pin and moulding.

Wherein, the protrusion part of this elastic strip body is located at the side of pin broadside.

This breach is shaped to the groove of monolateral opening, and is located at the either side of pin broadside.

The flat segments of this elastic strip body can be floated and is affixed on the pin end face, also can be recessed in the breach and the pin end face.

This elastic strip body is to be shaped on the pin.

The broadside of the single pin of plug forms the protruding projection of arc in one-sided punching press.

After adopting said structure, when plug of the present invention was implemented to plant, the elastic strip body protrusion section of tool elasticity tension was to fasten to be positioned at receptacle sockets inner wall top, in order to do tool one location effect person.The present invention possesses following characteristics:

When 1, plug was inserted in socket, its tool one fixed locating effect, and fail safe is good.

2, desire to pull out when unloading plug, only must execute a suitable power and can make plug and socket be separated.

3, the attaching plug of electrical appliance is desired to pull out when unloading as if the changeover plug that is inserted in a pair of three, need not worry the situation that pulls away together with changeover plug.

But 4, the turn plug of similar a pair of three changeover plugs, its turn structure can be save packing ring, effectively saves the smoothness of assembling man-hour and increasing turn.

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the present invention's first example three-dimensional (broken section) figure;

Fig. 2 is combination (analysing and observe) figure of the present invention's first example;

Fig. 3 is the enforcement illustration of the present invention's first example;

Fig. 4 is the stereogram of the present invention's second example;

Fig. 5 is the enforcement illustration of the present invention's second example;

Fig. 6 is the stereogram of the present invention's the 3rd example;

Fig. 7 is combination (analysing and observe) figure of the present invention's the 4th example;

Fig. 8 is the three-dimensional exploded view of the present invention's the 5th example;

Fig. 9 is combination (broken section) figure of the present invention's the 5th example;

Figure 10 is the combination stereoscopic figure of the present invention's the 5th example;

Figure 11 is the three-dimensional exploded view of the present invention's the 6th example;

Figure 12 is the combination schematic diagram of the present invention's the 6th example;

Figure 13 is the assembled sectional view of the present invention's the 6th example;

Figure 14 is the enforcement schematic diagram () of the present invention's the 6th example;

Figure 15 is the enforcement schematic diagram (two) of the present invention's the 6th example;

Figure 16 is the structural representation of seventh embodiment of the invention;

Figure 17 is the combination schematic diagram of the present invention's the 7th example;

Figure 18 is the enforcement illustration of the present invention's the 8th example;

Figure 19 is the enforcement illustration of the present invention's the 9th example;

Figure 20 is combination (broken section) figure that commonly uses product;

Figure 21 is another combination of commonly using product (broken section) figure.

See also Fig. 1, the present invention's first example is established for 2 groups by a plug 1 cooperation one elastic strip body and is formed, and wherein: plug 1 appropriate location is established tool pin 11, and pin 11 is each moulding one breach 111 of two side places in the stage casing, and respectively establishes a recess 112 in back segment two side places; Elastic strip body 2 is the lamellar body that width etc. is wider than plug 1 pin 11 thickness, in the present embodiment, elastic strip body 2 is set as U-shaped (but this non-its unique enforcement sample attitude), its appropriate location in corresponding above-mentioned pin 11 breach 111 of leading portion two sides is set as the protrusion section 21 of outside bending, and in the recess 112 moulding concave sections 22 of relative plug 1 pin 11 of back segment two sides.

When this example set fashionable, as shown in Figure 2, elastic strip body 2 is to be located on plug 1 pin 11 2 sides, make elastic strip body 2 concave sections 22 ccontaining pin 11 recesses 112, elastic strip body 2 leading sections (being free end) are then stretched and are put pin 11 breach 111, wherein pin 11 is located at plug 1 inside with elastic strip body 2 back segment portions, and is the plug construction of a pin 11 2 side tool elastic strip bodies 2.

And when this example uses, shown in Figure 3, the pin 11 of interleave head 1 is intercalated in socket 3 jacks 31, the protrusion section 21 of wherein establishing the elastic strip body 2 of pin 11 2 sides is that little supporting and clip are in socket aperture 31 inner wall tops, and tool one fixes locating effect, in order to do making plug 1 can just not break away from socket 3 because of a little external force; And desire to pull out when unloading plug 1, slightly execute elastic strip body 2 protrusion sections 21 that suitable power can make the tool elasticity tension to be subjected to the restriction of jack 31 internal faces and to stretch, unload plug 1 in order to do pulling out smoothly.In above-mentioned operating process, plug 1 intercalation worker pull out when unloading, the protrusion section 21 of elastic strip body 2 all can suffer oppression and in the stretching, extension of contracting, and stretch required activity space, the breach 111 of suitable pin 11 by plug 1 is provided.

See also Fig. 4, the present invention's second example is to be at pin 1 with elastic strip body 2 improvement: pin 11 is each moulding one breach 111 of two side places in the stage casing, and respectively establishes a profile groove 113 in relative breach 111 1 end appropriate locations; Elastic strip body 2 is by thin slice or wire rod moulding, and this property lamellar body 2 has a canned paragraph 23, and this section is extended an arc bending shape protrusion part 24 certainly, and this protrusion part 24 has pressure by elasticity.

By being set as of said structure, elastic strip body 2 is by its canned paragraph 23 suitable profile grooves 113 that are embedded in pin 11 tightly of mat, make the protrusion part 24 of elastic strip body 2 be positioned at breach 111 places of pin 11, and the end of protrusion part 25 is to stretch into this breach 111, and if desire to make these elastic strip body 2 energy permanent robust ground build-ins in pin 11, then can impose punching press at profile groove 113 places of pin 11, the distortion of mat material and give fixingly makes elastic strip body 2 not have the anxiety that comes off; And as shown in Figure 5, when pin 11 is inserted in the jack 31 of socket 3, suitable little the supporting of elastic strip body 2 and clip are in 31 inner walls of socket 3 jacks, and tool one fixes locating effect, the jack 31 that also can just break away from socket 3 in order to do the pin 11 that makes plug 1 because of a little external force, desire again to pull out when unloading plug, slightly execute the protrusion part 24 that suitable power can make the elastic strip body 2 of tool elasticity tension and be subjected to the breach 111 of the 31 internal faces restriction retraction pin 11 of socket 3 jacks, and pull out smoothly and unload plug.

In addition, see also Fig. 6, the present invention's the 3rd example is that the higher elastic wire of number 28 replaces with elastic strip body 2 with elasticity, wherein one of relative breach 111 of pin 11 2 sides end appropriate location is respectively established a tank 114, and elastic wire 28 is the protrusion parts 282 by a canned paragraph 281 elongation mouldings one arc bending shape; Mat it, but the mat elastic wire 28 canned paragraphs 281 suitable tanks 114 that are intercalated in pin 11 tightly, make the protrusion part 282 of elastic wire 28 stretch the breach 111 that places pin 11, and tank 114 places of pin 11 can be given punching press, make the firm build-in of elastic wire 28 energy in pin 11.

Again, the pin of the present invention's the 3rd example 11 and elastic strip body 2, elastic wire 28 except that the kenel that can be [build-in type], it [integral type] structure of the 4th example that also can be as shown in Figure 7, its pin 11 is in the blocking part 115 of each one-body molded tool elastic force of two sides.

In addition, the present invention's the 5th example as shown in Figure 8, be that aforementioned pin 11 and elastic strip body 2 are changed the structure that is set as figure, it is to comprise a pin 41 and an elasticity is covered sheet 42, each moulding one breach 411 of pin 41 2 side middle sections wherein, and establish an open-work 412 in the back segment place, and elasticity to cover sheet 42 be to be set as to the curved protrusion part 421 of outer arc in corresponding pin 41 breach of leading portion two sides 411 places, and be connected with a lateral plate 422 in back segment, lateral plate 422 central protuberantia moulding one convex bodys 423, these convex body 423 relative pin 41 open-works 412 are established a perforation 424; Thus, during combination, as Fig. 9, shown in 10, can be used in a pair of three changeover plug, it makes elasticity cover sheet 42 and is placed on pin 41 1 sides, make the open-work 412 of the perforation 424 involutory pins 41 of convex body 423, flexure strip 42 protrusion parts 421 are then stretched and are placed pin 41 breach 411, and utilize a rivet 44 default holes of conductive reed 42 that stretch through, elasticity is covered the perforation 424 and the pin 41 open-works 412 phase riveteds of sheet 42 convex bodys 423, make pin 41 and conductive reed 43 be a kenel that links to each other and to conduct electricity, elasticity cover sheet 42 lateral plates contact with conductive reed 43 and only depend on convex body 423 and with conductive reed 43 touch mutually to, still the people does not have situation too loose or that too tightly be difficult to rotation extremely when switching pin 41 interlock spill spin blocks 45, the smoothness of its tool one switching operation, also not having the product of commonly using needs taking a lot of work of Passscheiben 95 assemblings consuming time, die and effectively reduce into instinct, industrial competitiveness improves relatively; In addition, the above-mentioned convex body of being carried 423 kenels are non-for specific, and other is all the feasible embodiment of the present invention such as the protruding moulding of protruding grain or Any shape, also with the effect that can reach reverse turn operation tool smoothness.

In addition, elastic strip body 2 of the present invention is except that can be shown in Fig. 4,6 kenel and it [integral type] kenel of Fig. 7 of [build-in type], all other machining process with equivalence (as solid welding etc.) are fixed in elastic strip body 2 structure of pin 11 sides, be all the category of this case, the protrusion section 24 of this case elastic strip body 2 again, non-ly only be confined to the shape shown in graphic, circular arc for example, bent angle shape etc. all can be implemented, that is, all compressible appearances of external force that is subjected to are gone into pin 11 breach 111, treat that the protrusion form that can recover when my power is removed is all the feasible embodiment of the present invention.

At first, see also shown in Figure 11, the present invention is directed to the pin 51 of plug 5 and the improvement of elastic strip body 2 is to be: pin 51 is to connect breach 511 in offering one than broadside guard plug place, and only this breach 511 also may be molded to the groove of one-sided opening, and is located at the either side of pin 51 broadsides arbitrarily.Elastic strip body 2 is to make moulding by thin slice or wire rod, can be in end moulding [Jiong] jacket shell 25, and extend flat segments 26 by sheath body 25, and make protruding moulding one tool of flat segments 26 front end arcs press protrusion section 27 by elasticity, wherein, straight 26 of elastic strip body 2 can have partly length be set as depression kenel (shown in Figure 1 promptly be), so that during combination, this section can be recessed into aforementioned breach 511, perhaps, the neither formation of the flat segments of full section is caved in, and directly is attached at the pin 51 of plug during assembling.

Thus, see also Figure 12,13, be to make sheath body 25 cover of elastic strip body 2 be butted on the relative inner of pin 51 broadsides of plug 5, (also can overlap the outside relatively that is held in pin 51 broadsides), and be embedded in the plug, its flat segments 26 suitable recessed breach 511 that place, and keep same plane with the broadside of pin 51,27 reliefs of this protrusion section are in breach 511 places, end with protrusion section is to stretch in the breach 511, (in addition, if pin 51 breach 511 are set as shorter, also can make flat segments 26 directly float and be affixed on pin broadside plane, make the protrusion section relief) in breach 511 places; And when pin 51 is inserted in socket 3 jacks 31, see also shown in Figure 13,14, make elastic strip body 2 pull with inserting of the pin 51 of plug 5 and make protrusion section 27 be subjected to jack 31 compel to support and in the breach 511 compression deformations, and make pin 51 be extended through jack 31; When pin 51 hold fully stretch in jack 31 after, as shown in figure 15, the protrusion section 27 of this elastic strip body 2 is replied original protuberantia state because of self material immediately, know that but clip is in socket 3 jacks 31 inner walls, make pin 51 tools one fix locating effect, can just not break away from socket 3 jacks 31 because of a little external force in order to do the pin 51 that makes plug.

In addition, the pin of some plugs is moulding by thin sheet material doubling, therefore say can be shown in Figure 16,17 in the present invention, make a thin slice body dash the tabling piece 611 that an ora terminalis is connected with lamellar body and slightly outwards protrude out of pulling in suitable place, except that link, then give suitable hollow out opening 6111 around the tabling piece 611, this tabling piece 611 will be pressed by elasticity because of protruding out the moulding tool; In addition in the relative tabling piece of plate body 611 places, default one can hold the saturating vacancy mouth 612 of stretching tabling piece 611, when implementing, make lamellar body bend the pin 61 that applying forms plug 6 relatively, this tabling piece is stretched in breach 612 and is slightly convexedly stretched in the lamellar body end face 611 suitable can appearances, and the also positioning function of tool one elastic telescopic.

Moreover, as shown in figure 18, the present invention's plug 7 also can dash the protruding projection 711 of arc of pulling in one-sided pin 71 broadsides, this projection 711 is the protuberantia points that can be a part, also can form the protuberantia state in the area punching press in pin 71 stage casings, and offer breach 712 with must be in installing elastic strip body 2 in other side pin 71, and in inserting when pulling in socket 3 jacks 31, the button of this pin 71 is pulled and 711 also reliably is butted on jack 31 inner hole walls and forms the location; Again, also can be as shown in figure 19, the pin 81 that makes plug 8 by a thin plate in the relative two side blows wall 811 of pulling, and make this plate body be bent to form pin 81 relatively, and when inserting when pulling in socket 3 jacks 31, this projection 811 is suitable will to be resisted against jack 31 inner hole walls, and also has identical locating effect.

Plug base pin that this case again is referred to as is to make a general reference all can be inserted in the pin of any form plug on the socket, and for example the pin of thing such as transformer plugs, anti-lightning strike multi-tap all belongs to this case category.

Claims (7)

1, a kind of fixture of pin of plug, cooperating the elastic strip body group to establish by plug forms, wherein, the pin moulding breach of plug, and elastic strip body has a flat segments and forms the protrusion part of outside bending in corresponding pin breach, this protrusion part possesses pressure by elasticity, it is characterized in that: the breach of pin is located at the broadside of pin, and this breach runs through pin and moulding.

2, the fixture of the pin of plug according to claim 1 is characterized in that: the protrusion part of this elastic strip body is located at the side of pin broadside.

3, the fixture of the pin of plug according to claim 1 is characterized in that: this breach is shaped to the groove of monolateral opening, and is located at the either side of pin broadside.

4, the fixture of the pin of plug according to claim 1 is characterized in that: the floating pin end face that is affixed on of the flat segments of this elastic strip body.

5, the fixture of the pin of plug according to claim 1 is characterized in that: the flat segments of this elastic strip body can be recessed in the breach and the pin end face.

6, the fixture of the pin of plug according to claim 1 is characterized in that: this elastic strip body is to be shaped on the pin.

7, the fixture of the pin of plug according to claim 1 is characterized in that: the broadside of the single pin of plug forms the protruding projection of arc in one-sided punching press.

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