CN1112743C

CN1112743C - Plug pin fixing structure

Info

Publication number: CN1112743C
Application number: CN 98121511
Authority: CN
Inventors: 黄琼媛
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-07
Filing date: 1998-10-07
Publication date: 2003-06-25
Anticipated expiration: 2018-10-07
Also published as: CN1250238A

Abstract

The present invention relates to a fixing structure for pins of a plug, which is mainly assembled by that a plug is matched with an elastic sheet body and is used by the matching of plug jacks of the socket, wherein two notches are respectively formed at both sides of the intermediate section of each pin of the plug; both sides of the front section of the elastic sheet body are designed into projecting sections bent outwards at the parts corresponding to the notches of the pins of the plug; the sheet body is arranged at the side edges of the pins in an encircling mode, and the back section part of the sheet body is arranged inside the plug. Thus, when the plug is plugged, the projecting sections of the elastic sheet body with elastic tension or the projecting parts of an elastic covering sheet are slightly spread and expanded and are clamped at the tops of the inner edge walls of the plug jacks of the socket; thus, the plug and the socket have clamping and positioning effect.

Description

The fixed structure of the pin of plug

The invention relates to the fixed structure of the pin of plug.

Household electrical appliances all utilize attaching plug by drawing electricity usage in the socket with mouth 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 gripping power of conducting strip and fixing in the mat socket only, fixing still the title well at use initial stage, so with the passing of time conducting strip then can produce loose 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 will cause other two electrical appliances to cut off the power supply suddenly, increase user's inconvenience on foot.

In addition, some changeover plugs of a pair of three 6, be but that its pin 62 positions are set as the turn kenel, as shown in figure 11, in appropriate location be arranged with an accommodation space with group establish can appropriate positioning of rotating spill spin block 61, wherein pin 62 is to utilize rivet 64 direct riveteds with the consolidation style of conductive reed 63, makes pin 62 and conductive reed 63 be the kenel that is connected; Mat it, fitting can be according to the actual needs of pulling of inserting, appropriateness switching pin 62 Jing interlock spill spin blocks 61 are to be inserted in the jack of socket, yet this kind directly used pin 62 and conductive reed 63 mode of rivet 64 riveted joints, after its riveted joint is finished, two kinds of situations of normal generation, one is pin 62 and conductive reed 63 touching position tensions, it two is that pin 62 is loose excessively with conductive reed 63 touching positions, these two kinds of situations will cause people when switching pin 62 interlock spill spin blocks 61, generation must be executed gravity side and get switching or only execute the slight loosening phenomenon of i.e. rotation, and the process of promptly adjusting pin 62 angles is non-for smooth and easy.

So, do not improve part at attaining in above-mentioned changeover plug 6 uses, someone is provided with a packing ring 65 (seeing also Figure 12) at pin 62 with conductive reed 63 corresponding joints when riveted joint, utilize a rivet 64 conductive reed 63 that stretches through again, packing ring 65 and pin 62 and mutually the riveted joint, see it, 62 of conductive reed 63 and pins join because of mat packing ring 65, and this packing ring 65 is the frictional force that is produced in the time of can lowering relative conductive reed 63 turns of pin 62, so adjust going up in rotation, pin 62 do not have too tightly or the problem of pine too, so, this packing ring 65 is to be a tiny element, its process that is arranged in the process of conductive reed 63 and pin 62 and rivet 64 riveteds is rather complicated, must be very careful, increase the man-hour of manufacturing virtually, cost can not effectively reduce.

The present invention's main purpose promptly is to provide a kind of fixed structure of plug base pin, but its clip in the jack inner wall top of socket, and tool is inserted the good and difficult drop-off of fixed effect of pulling.

For reaching above-mentioned purpose, solution one of the present invention is: plug is provided with pin, the fixed structure of the pin of plug cooperates the elastic strip body group to establish by plug and pin thereof to form, and elastic strip body is adjacent to pin two sides, and one of elastic strip body and pin are held and all be 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, and its appropriate location in the corresponding pin breach of leading portion two sides is set as the protrusion section of outside bending; The free end of elastic strip body is positioned at the breach of pin, and the protrusion section of elastic strip body can be stretched in by external force pressure in the breach of pin.

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

Solution two of the present invention is: plug is provided with pin, and the fixed structure of the pin of plug is established by the pin cooperation elastic strip body group of plug and formed; 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, this protrusion part possesses pressure by elasticity, and this elastic strip body is that the canned paragraph that is shaped in side outside the above-mentioned breach or elastic strip body directly is fixed on one of above-mentioned breach end.

Above-mentioned elastic strip body is with sheet material or wire rod moulding.

Solution three of the present invention is: plug is provided with pin, and cooperates other conducting strips and implement, and the fixed structure of the pin of plug 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 on other conducting strips, and above-mentioned convex body is suitable to be situated between between pin and conducting strip.

Thus, when plug was implemented to plant, the elastic strip body protrusion section of tool elasticity tension was to fasten to be positioned at socket aperture inner wall top, and tool one location effect.

In a word, 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 the situation that worry 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 combination (broken section) figure that commonly uses product;

Figure 12 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, as shown in Figure 3, the pin 11 of plug 1 is intercalated in socket 3 jacks 31, the protrusion section 21 of wherein establishing the elastic strip body 2 of making in pin 11 2 sides is that little supporting and clip are in socket 3 jacks 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 or 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 the improvement of pin 1 and elastic strip body 2: 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 elastic strip body 2 has a canned paragraph 23, and this section is extended the protrusion part 24 of an arc bending shape certainly, and this protrusion part 24 has pressure by elasticity.

By being set as of said structure, elastic strip body 2 is 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 24 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 can just not 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 replaces elastic strip body 2 with the higher elastic wire 5 of coefficient of elasticity, wherein one of relative breach 111 of pin 11 2 sides end appropriate location is respectively established a tank 114, and elastic wire 5 is the protrusion part 52 by a canned paragraph 51 elongation mouldings one arc bending shape; Mat it, but the canned paragraph 51 suitable tanks 114 that are intercalated in pin 11 tightly of mat elastic wire 5, make the protrusion part 52 of elastic wire 5 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 5 energy in pin 11.

Again, the pin of the present invention's the 3rd example 11 and elastic strip body 2, elastic wire 5 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 4, 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, 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, wherein pin 41 in two side middle sections each moulding one breach 411, 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 423,423 relative pin of this convex body, 41 open-works 412 are established a perforation 424; Mat it, during combination, as Fig. 9, shown in 10, be to be used in a pair of three changeover plug, it is to make elasticity cover sheet 42 be placed on pin 41 1 sides, make the open-work 412 of the perforation 424 involutory pins 41 of convex body 423, elasticity is covered sheet 42 protrusion parts 421 and is then stretched and place pin 41 breach 411, and utilize a rivet 43 default holes of conducting strip 44 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 only depend on convex body 423 with conducting strip 44 phase-contact surfaces and with conducting strip 44 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 65 assemblings consuming time, so become instinct effectively to reduce, 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 switching 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 the 7th figure of " build-in type ", all other machining process with equivalence (as solid welding etc.) are fixed in flexure strip complete 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 external force is removed is all the feasible embodiment of the present invention.

Claims

1, a kind of fixed structure of pin of plug, wherein plug is provided with pin, it is characterized in that: it cooperates the elastic strip body group to establish by plug and pin thereof to form, and elastic strip body is adjacent to pin two sides, and one of elastic strip body and pin are held and all be 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, and its appropriate location in the corresponding pin breach of leading portion two sides is set as the protrusion section of outside bending; The free end of elastic strip body is positioned at the breach of pin, and the protrusion section of elastic strip body can be stretched in by external force pressure in the breach of pin.

2, the fixed structure of the pin of plug according to claim 1 is characterized in that: 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.

3, a kind of fixed structure of pin of plug, wherein plug is provided with pin, it is characterized in that: cooperate the elastic strip body group to establish by the pin of plug and 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 to be shaped in side outside the above-mentioned breach.

4, a kind of fixed structure of pin of plug, wherein plug is provided with pin, it is characterized in that: cooperate the elastic strip body group to establish by the pin of plug and 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 the canned paragraph of this elastic strip body directly is fixed on one of above-mentioned breach end.

5, as the fixed structure of the pin of the plug as described in claim 3 or 4, it is characterized in that: elastic strip body is with sheet forming.

6, as the fixed structure of the pin of the plug as described in claim 3 or 4, it is characterized in that: elastic strip body is with the wire rod moulding.

7, a kind of fixed structure of pin of plug, wherein plug is provided with pin, and cooperates other conducting strips and implement, and it is characterized in that: cooperate elasticity to cover the sheet group by the pin of plug and 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 on other conducting strips, and above-mentioned convex body is suitable to be situated between between pin and conducting strip.