CN2137036Y

CN2137036Y - Safety plug

Info

Publication number: CN2137036Y
Application number: CN 92224646
Authority: CN
Inventors: 谢光南; 谢文斌
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-10
Filing date: 1992-06-10
Publication date: 1993-06-23
Anticipated expiration: 2002-06-10

Abstract

The utility model discloses a safety plug, comprising a plug body and a sheathing seat which is sheathed outside. The tab of the plug body is provided with one spring holding groove in the center or on both sides respectively, and the inside of the periphery of plug body is provided with a sheathing groove which is surrounded by a frame. The sheathing seat which forms a cap shape is used to cover and protect the tab, the inside of the sheathing seat is provided with a projected pillar relative to the middle piece of the holding groove in the center or on both sides of the plug body, and the pillar which is penetrated with a spring is penetrated in the holding groove. After the base body is assembled into the sheathing groove of the plug body, in the process of pulling out and plugging in the plug, the base body can be telescopically adjusted to cover the outside of the tab along with the plugged depth of the tab into a socket, so that electric shocks can be prevented, and accordingly, safe use can be guaranteed.

Description

Safety plug

The utility model relates to a kind of safety plug, refers to the safety plug of the flexible containment vessel design of a kind of tool especially, and the unlikely metal insert that exposes is guaranteed Electrical Safety when plug inserts in socket.

Modern people's quality of the life requires constantly to promote, the dependence of electrical appliance is increased relatively, and electrical appliance many with power line mated plug socket to obtain power supply, can make the electrical equipment start.Bring many convenience though electric equipment products are daily life, also bring very big danger but then.Because of human body is an electric conductor, improper use or all can cause electric shock accidentally is so modern people must widely note Electrical Safety.By extremely strong with preschool child's ignorant, curiosity and imitation ability, the study adult's of regular meeting action is gone plant or touch, is pulled out plug.In the process of unplugg and plug, the normal discovery because the application of force is not enough or take the method for holding incorrect, when causing plug to insert and socket do not paste closely fully, on plug, will expose a bit of inserted sheet, and the inserted sheet of this section energising.The child is exposed the inserted sheet part as if touching accidentally, can cause that just the facts of electric shock takes place.Even if planting or pulling out in the plug process, one also may touch inserted sheet accidentally slightly adult under this kind situation.Though the use of electrical appliance is very convenient, and be to improve quality of the life,, have to be noted in fact the careless unsafe condition of hiding that causes of similar use.

Because present stage appliance plug often because of not inserting socket fully, so that produce outside metal insert is exposed to, cause careless electric shock easily, influence the use shortcoming of Electrical Safety, after design improved repeatedly, develop a kind of inserted sheet that prevents of the present utility model eventually and be exposed to outer safety plug.

Main purpose of the present utility model is to provide a kind of safety plug of tool safe handling effect, guarantees Electrical Safety at home.

The structural design that safety plug of the present utility model is main, include a header body that is installed with metal insert, it is characterized in that: the fit slot frame that all causes of body fall together encloses, and the two long sides punishment in each end angle is provided with the catch of placing restrictions on of an inclination protrusion, and is arranged with the storage tank that falls in the both sides of inserted sheet; Cover with a nested base in the outside of body in addition, nested base indent bottom center or stage casing, both sides, with respect to header body central authorities or storage tank position, both sides, be arranged with the mast of a protrusion, the mast upper sleeve through has a spring, the spring bottom props up the storage tank bottom surface, and respectively hold the set protrusion of arm of angle side to place restrictions on the pedestal limit face of catch with respect to body, be arranged with a barb-like snap-latch piece, go into the fit slot of header body for insert group, can with the catch of placing restrictions on of oblique protrusion, when nested base is released, just can hook and place restrictions on catch, can not break away from and drop out.

Described safety plug, wherein nested base is respectively held the snap-latch piece both sides that establish in the place, angle, cuts into an open slot respectively, and when inserting header body for the snap-latch piece assembling, but elasticity is opened convenient the insertion outward.

Described safety plug, wherein the mast of the set ammunition feed spring of nested base inner bottom part insert group also can only be established the centre of a bearing body bottom surface, with respect to establishing a relative storage tank on the header body face.

In order to further specify structure of the present utility model, feature and practical purpose thereof, be described in more detail in the back with reference to the following drawings:

Fig. 1 is a stereoscopic exploded view of the present utility model.

Fig. 2 is a combination view of the present utility model (when not using).

Fig. 3 is combination view of the present utility model (when inserting socket).

Fig. 4 prevents the enlarged diagram of the localization part of throwing off when making up for the utility model.

Fig. 5 is the cutaway view of another kind of embodiment of the present utility model.

Safety plug of the present utility model, as shown in Figure 1, with the plug assembly of whole plug branch by a tool tool metal insert 11.Around the central authorities of header body 10 and inserted sheet 11, the solid cladding shape that is designed to protrude, and respectively be provided with the storage tank 21 of the appropriate depth that falls in both sides.Cover in addition and put the fit slot that falls together in each peripheral inner side frame of body 10, the groove depth roughly protrusion length with inserted sheet 11 is suitable, and be provided with one section ribs 14 in the stage casing of fit slot 12, make header body 10 form one and link the effect of strengthening, can not form the situation of the public undercapacity of pars intermedia because fit slot 12 offers, in addition in four end arm of angle sides of two long sides, be respectively equipped with one protrude inclination place restrictions on catch 13, as shown in Figure 4.

In addition, the nested base that closes of side cover 20 its height are slightly short than total lengths that inserted sheet 11 stretches out.On the indent two bottom sides stage casing and position of nested base 20 with respect to the set storage tank 21 in header body 10 both sides, be arranged with a mast 22 that protrudes, the protrusion top of mast 22 is set as a cone tip shape, the supplier just is set on the mast 22 with a tension spring 23, and makes the top of stretching out install to storage tank 21 bottom surfaces of body 10 in cover.Respectively hold the set protrusion of arm of angle side to place restrictions on the pedestal limit face of catch 13 with respect to body 10 again, be arranged with a barb-like snap-latch piece 24, the lamellar body both sides are cut into an open slot 25 respectively, supply snap-latch piece 24 when the group device inserts the fit slot 12 of header body 10, can make the catch 13 of placing restrictions on of oblique protrusion do suitable outer and push open, conveniently plug together the group device.And after insertion, can make snap-latch piece 24 be returned to smooth state, and make nested base 20 when releasing, the snap-latch piece 24 according to its barb just can hook and place restrictions on catch 13, can not break away to drop out.In addition in face stage casing, the limit of nested base 20, be symmetrical in the position of set ribs 14 on the body 10, offer into groove 27 shapes respectively, when supplying to plug together the group device, guide effect in the time of can cooperating placing restrictions on of ribs 14 to form auxiliary plugging together prevents that nested base 20 from producing shift phenomenon when inserting.

Please cooperate shown in Figure 2 again, when nested base 20 and header body 10 plug together assembling postpone mutually, because protrusion mast 22 upper sleeve throughs of establishing in the nested base 20 have spring 23, after insert group arrives header body 10, after loosening the strength that is pressed into insertion person, nested base 20 will be resisted against the bottom surface of storage tank 21 because of an interior end of establishing spring 23, promptly can form the ejection effect, design to such an extent that be protruding shape and to cooperate the set inserting-plate hole 26 of pedestal central authorities to make inserted sheet 11 only stay the outer end to protrude a little, the supplier just inserts socket and implements.In addition, align when plugging together,, also nested base 20 be equipped with transparent material and make except that inserted sheet 11 is part protrudes with socket for convenient, make plug together align more convenient.

When the header body that the utility model is set 10 aligns socket insert group dress when using, in socket, press when inserting operation stressed, at first the inserted sheet 11 that protrudes is aligned socket and also insert.When planting when inwardly exerting pressure, the extension elastic force of the nested base 23 that elasticity is protruded so make whole nested base 20 thereupon to fit slot 12 inner retractions, ends until insert the socket bottom.If the insufficient pressure of inserting, when inserted sheet 11 only was inserted into half state, the nested base 20 of its outer suit is the identical half-distance of retraction only also, even also the seat surface towel of nested base 20 closes surface in socket, made outside inserted sheet 11 can not be exposed to.In the time of after use, need extracting; the seat surface of nested base 20; the effect of rising of the spring of establishing in also can complying with 23; make it withdraw from the surface that Shi Yineng fits in socket; inserted sheet 11 is not had fully be exposed to outer situation generation; more can not produce the Danger Electric shock risk of false touch during use, reach safe handling and protection effect, the plug combination design that the tool of can saying so is safe and practical.

In addition, do in the safety plug of the present utility model for the spring 23 of ejection nested base 20, it also can directly be located at the central interior of nested base 20, that is as shown in Figure 5.Only establish a mast 221 that protrudes, and wear a spring 231 in the outside of mast 221 in the inner bottom part of nested base 20.Also in the middle position of body 10, establish with respect to mast 221 places and to stay a storage tank that falls 221, when plugging together assembling for nested base 20, insert assembling so that spring 231 aligns storage tank 211.Plug together when using at plug and socket, then outwards uphold ejection by middle position by spring 231, the guiding that cooperates fit slot 12 and ribs 14 etc., nested base 20 is moved along the socket of extracting of plug body 10, reverse to overhanging protrusion, make inserted sheet 11 can not be exposed to nested base 20 outsides, guarantee the safety of using.

Claims

1, a kind of safety plug, include a header body that sets firmly metal insert, it is characterized in that: the fit slot frame that all causes of described header body fall together encloses, and be provided with respectively in the two long side places at each end angle one tilt to protrude place restrictions on catch, and be provided with the storage tank that falls in the both sides of inserted sheet; Cover with a nested base in the described header body outside in addition, this nested base indent two bottom sides stage casing, with respect to storage tank position, described header body both sides, be respectively equipped with the mast of a protrusion, at spring of this mast upper sleeve through, the spring bottom props up the storage tank bottom surface, and respectively hold the set protrusion of arm of angle side to place restrictions on the pedestal edge of catch with respect to described header body, be respectively equipped with a hook-shaped snap-latch piece, with when the group device inserts the fit slot of header body, can cooperate with the catch of placing restrictions on of oblique protrusion, when nested base is released, just can hook and place restrictions on catch, can not break away from and drop out.

2, safety plug as claimed in claim 1 is characterized in that, cuts into an open slot respectively in the snap-latch piece both sides that described nested base respectively holds the place, angle to be provided with, and when inserting header body for the snap-latch piece assembling, but elasticity is opened convenient the insertion outward.

3, safety plug as claimed in claim 1 is characterized in that, the mast of the ammunition feed spring insert group that described nested base inner bottom part is set also can only be established a centre in the pedestal bottom surface, and establishes a corresponding storage tank on respect to the header body face.