CN201877602U - Screwed ceramic three-hole power plug - Google Patents

Abstract

The utility model relates to the technical field of a power plug, in particular to a screwed ceramic three-hole power plug. The power plug is provided with a connection structure of a porcelain head and a seat body, and a grounding terminal for stabilizing current, wherein the connection structure of the porcelain head and the seat body is that a first screw passes through an L-shaped metal strip into a middle hole of the ceramic head to be connected with an L-shaped grounding bracket on the seat body; the grounding device is connected to the L-shaped bracket by a first screw through the metal strip; the tail end of the L-shaped bracket is provided with a grounding terminal lead; a second screw connects an upper cover, a bracket in an upper cover box and a lower cover together by nuts, so that the isolated metal elements of the power plug are grounded completely for ensuring the stabilization of current; the middle hole of the porcelain head is composed of a circular extended bulge; the porcelain head is provided with wiring columns in left and right jacks. Compared with the prior art, the screwed ceramic three-eye power plug of the utility model has the advantages that the functions are increased, the investment of products is low, the cost is low and the application is wide; and the power plug is worth popularizing and applying.

Description

Connect and twist the formula ceramic three-hole power plug

Technical field

The utility model is created and is related to the attaching plug technical field, and specifically a kind of connecing twisted the formula ceramic three-hole power plug.

Background technology

Along with growth in the living standard, household electrical appliance have become in people's family life requisite apparatus, especially electric rice cooker, insulating pot, electric woks etc. are the kitchen tools that must use every day of family kitchen especially, when enjoying the enjoyment easily that modern science brings, people also can not be ignored the shortcoming of the existing problem of these modern furniture and appliances, especially household electrical appliance that power is bigger such as water heater, circuit in long-time continuous is used such as air conditioner can generate heat, electrical appliance can generate heat, the contact component of the most serious is attaching plug is because plug mostly uses pvc material to make, not just heating, situation is hot and even burnt paste mostly, the plug that burns out because the time uses is not within minority, the even more serious fire that therefore causes that has, because the plug that these more powerful power consumption equipments use is when design, security consideration for electricity consumption, attaching plug all is the delta structure plug on " left side zero; right fire; go up ground connection ", also has electrical appliance when heating up water etc., water can flow to the circuit example by plug, produce short circuit, even breaking out of fire etc., and the connection of existing plug is insecure, the plug heating, shortcoming such as hot.

Chinese patent 200920141899.3 discloses a kind of isosceles triangle ceramic three-hole power plug, solved the problem of materials of plug, but there is not ground connection, during use because of the factor electric current instability that generates an electromagnetic field, being connected between porcelain head and the pedestal lacks safety firmly, the conducting terminal design that is connected between plug and the socket is unreasonable, particularly product unification, and the plug of isosceles triangle can not be used for circular plug.

The utility model content

The purpose of this utility model overcomes the shortcoming of above-mentioned prior art, provide a kind of connecing to twist the formula ceramic three-hole power plug, for the electric current of this attaching plug that prevents to flow through produces problem of unstable, avoid the attaching plug of no earthing mechanism in the prior art, strengthen being connected firmly and safety between porcelain head and the pedestal.

For achieving the above object, design a kind of connecing and twist the formula ceramic three-hole power plug, comprise that porcelain head pedestal loam cake and lower cover are fastened and connected, be provided with three isosceles triangle jacks in the porcelain head, be provided with conducting terminal in the jack of the left and right sides, conducting terminal is provided with lead and connects, socket is provided with sleeve, it is characterized in that this attaching plug is provided with the syndeton of porcelain head and pedestal and the earth terminal of stabling current, the syndeton of described porcelain head and pedestal is that first screw passes L shaped bonding jumper to the L shaped grounded bracket on porcelain head mesopore and the pedestal and joins, described earthing device is connected on the L bracket by first screw by bonding jumper, the end of L bracket is provided with the earth terminal lead, second screw links together support and lower cover in loam cake and the last hamper by nut, make the isolated whole ground connection of hardware of this attaching plug, guarantee current stabilization, described porcelain head mesopore extends a projection by circle and constitutes, be provided with binding post in the jack of the described porcelain head left and right sides, described binding post structure is that half three-dimensional rectangle and extension block constitute, reach the fixture that the top is provided with left and right sides intermediate plate on half three-dimensional rectangular two side ends, extension block is a rectangle, be provided with six projections of symmetry on rectangular sheet metal, wherein four of the extension block bottom projections are in order to fixing that lead connects;

The pedestal profile that pedestal loam cake and lower cover are fastened and connected is the bottle shape, the pedestal bottom center is provided with a hole and puts into sleeve, the pedestal loam cake is provided with corresponding shrinkage pool with the lower cover center upper portion and is connected in order to screw, the pedestal top is provided with a rectangular recess in order to embed the porcelain head bottom, on the median wall of groove, be provided with the equidistant left and right sides jack that uniformly-spaced is parallel to each other, in order to put into the sheet metal of conducting terminal, the centre position is provided with a rectangular recess on the median wall of shrinkage pool;

Described loam cake and lower cover inner-cavity structure are same structures, the intracavity bottom of loam cake is provided with semicircle orifice, the semicircle orifice upper central is provided with a projection, in order to prevent that sleeve from sliding, the right and left on projection is respectively established a projection and is connected with sidewall, the top of last cover cavity is provided with left, center, right three grooves, left and right sides groove is in order to insert the sheet metal of conducting terminal, connect the groined type projection on the base wall of intermediate groove, groined type projection central authorities are provided with screw hole, be provided with at the loam cake intracavity bottom and do not penetrate the reinforcement hole, described loam cake and following cover material employing bakelite or resin or plastic material more than at least four;

Porcelain head is shaped as approximate three-dimensional rectangle, porcelain head top and bottom are provided with three corresponding jacks and constitute the isosceles triangle jack, middle jack is that the circular projection that extends constitutes, left and right sides jack is that rectangle is formed, the porcelain head bottom is provided with the groove that comprises one or more, be provided with semi-circular recesses in the middle of the porcelain head, described porcelain head material adopts conventional ceramic or special cermacis or refractory ceramics;

Screw earthing mechanism, this screw earthing mechanism comprise that the lead on first screw, L shaped bonding jumper, L shaped grounded bracket, second screw and the L shaped grounded bracket constitutes;

Half three-dimensional rectangular top of described binding post structure and top are provided with the fixture of left and right sides intermediate plate, and the centre is provided with louvre, and the bottom is provided with extension block, and extension block is the rectangle leg, and described first binding post is made by a sheet metal;

The utility model compared with prior art; function increases; original utility model porcelain head be provided with earthing mechanism during the technology of bakelite combines; utilize earthing mechanism with metal parts ground connection isolated in the attaching plug; solve existing power supply plug inside electric current instability problem; adopt grounded metal clamping ceiling from the porcelain head mesopore, to penetrate and pedestal between support be connected firmly; the binding post novel structure of conducting terminal; guarantee that circular plug or isosceles triangle plug insert reliable and safety; this product-specific investments is few; cost is low, uses extensively, is worthy of promotion and application.

Description of drawings

Fig. 1 is D structure figure of the present utility model;

Fig. 2 is the three-dimensional exploded view of structure division of the present utility model;

Fig. 3 is the D structure figure of the utility model sleeve.

Embodiment

Below in conjunction with drawings and Examples the utility model is further specified, described manufacturing technology is clearly to this professional people.

Participate in Fig. 1; 1 is pedestal, and 2 is porcelain head, and 3 is grounded metal clamping ceiling; 4 is the second screw connector; 5 is the binding post of conductor terminal, and ceramic porcelain head embeds and connects pedestal, and porcelain head top mesopore is provided with earth terminal; hole, the left and right sides is provided with conducting terminal; be provided with second screw in the middle of the pedestal and connect support, the lead on the support and first screw and metal clamping ceiling connect metal parts isolated in the attaching plug.

Referring to Fig. 2,21 is last cover cavity, the inner-cavity structure of described loam cake and lower cover is identical, 22,23,24 is last cover cavity projection, 25 is the loam cake top groove, 26 is last tops lower wall intermediate groove, 27 and 28 is the left and right sides groove of last tops lower wall, in order to insert first binding post and second binding post of conducting terminal, 29 is recessed of groined type, recessed of groined type is gone up and is connected with support second screw-socket, 30 is the screw connector on the groined type projection, 31 is the loam cake semicircle orifice, in order to snap in the connection sleeve, 32 is the lower cover profile, 33 is the second screw connector, 34 is the striped of profile bottom, described lower cover profile is identical with the loam cake contour structures, shape approximation doleiform, lower cover center upper portion are provided with the second screw connector, and the lower cover lower case is provided with equidistant uniformly-spaced concave and convex stripe, described loam cake and lower cover adopt bakelite material or plastic material or resin material to make, described material is an ABS resin, polyester, polytetrafluoroethylene, phenolic plastics, aminoplast etc. are at first held loam cake and lower cover successfully mould, adopt above-mentioned material raw material injection molded or die forming.35 is porcelain head, 36 is hole, a porcelain head left side, 37 is the right hole of porcelain head, 38 is the porcelain head interstitial hole, and described interstitial hole is circular and projection shape constitutes, and 39 is the groove of porcelain head, by semicircle or half rectangle or trapezoidally constitute, 40 is the tongue on the porcelain head, connects pedestal top corresponding grooves in order to embed, and described tongue comprises one or more, described porcelain head material adopts conventional ceramic or special cermacis or high-temperature ceramic materials to make, described conventional ceramic is an electrotechnical ceramics etc., and as high silicon porcelain etc., described special cermacis is a high alumina matter porcelain, described refractory ceramics is an oxide ceramics etc., according to the requirement of porcelain head, hold mould successfully, adopt die forming or casting forming.41 is the first ground connection screw; 42 is grounded metal clamping ceiling; be shaped as L shaped; in the middle of L shaped bottom, be provided with screw hole (43); 44 is the grounded metal support; be shaped as L shaped; on L bracket, be provided with first screw hole (45); the other end in L bracket is provided with second screw hole (46) and earth lead hole (47); the first ground connection screw penetrates grounded metal clamping ceiling by screw and is connected on the L shaped grounded metal support from the mesopore of porcelain head top; support is provided with earth lead, and second screw and nut are fixed in L bracket in the pedestal then.The execution mode of described ceiling and L bracket is to hold mould earlier successfully, then with sheet metal or copper sheet die forming or drawing.48 is first binding post, 49 for the binding post top is provided with left and right sides clamping sheet mechanism, and 50 is the first binding post bottom, and the bottom is provided with six projections, being shaped as of binding post is similar to the main body rectangle, and described binding post adopts a sheet metal or copper sheet to utilize the mould press forming.51 is second binding post, and second binding post is identical with the first binding post structure, and described binding post adopts a sheet metal or copper sheet to utilize the mould press forming.

Referring to Fig. 3, Fig. 3 has provided the sleeve structural map, and described sleeve is provided with two grooves (52) and (53) on cylinder, adopts plastic material to make.

Claims (6)

1. one kind connects stubborn formula ceramic three-hole power plug, comprise that porcelain head pedestal loam cake and lower cover are fastened and connected, be provided with three isosceles triangle jacks in the porcelain head, be provided with conducting terminal in the jack of the left and right sides, conducting terminal is provided with lead and connects, socket is provided with sleeve, it is characterized in that this attaching plug is provided with the syndeton of porcelain head and pedestal and the earth terminal of stabling current, the syndeton of described porcelain head and pedestal is that first screw passes L shaped bonding jumper to the L shaped grounded bracket on porcelain head mesopore and the pedestal and joins, described earthing device is connected on the L bracket by first screw by bonding jumper, the end of L bracket is provided with the earth terminal lead, second screw links together support and lower cover in loam cake and the last hamper by nut, make the isolated whole ground connection of hardware of this attaching plug, guarantee current stabilization, described porcelain head mesopore extends a projection by circle and constitutes, be provided with binding post in the jack of the described porcelain head left and right sides, described binding post structure is that half three-dimensional rectangle and extension block constitute, reach the fixture that the top is provided with left and right sides intermediate plate on half three-dimensional rectangular two side ends, extension block is a rectangle, be provided with six projections of symmetry on rectangular sheet metal, wherein four of the extension block bottom projections are in order to fixing that lead connects.

2. a kind of connecing as claimed in claim 1 twisted the formula ceramic three-hole power plug, it is characterized in that the pedestal profile that pedestal loam cake and lower cover are fastened and connected is the bottle shape, the pedestal bottom center is provided with a hole and puts into sleeve, the pedestal loam cake is provided with corresponding shrinkage pool with the lower cover center upper portion and is connected in order to screw, the pedestal top is provided with a rectangular recess in order to embed the porcelain head bottom, on the median wall of groove, be provided with the equidistant left and right sides jack that uniformly-spaced is parallel to each other, in order to put into the sheet metal of conducting terminal, the centre position is provided with a rectangular recess on the median wall of shrinkage pool.

3. a kind of connecing as claimed in claim 1 twisted the formula ceramic three-hole power plug, it is characterized in that described loam cake and lower cover inner-cavity structure are same structures, the intracavity bottom of loam cake is provided with semicircle orifice, the semicircle orifice upper central is provided with a projection, in order to prevent that sleeve from sliding, the right and left on projection is respectively established a projection and is connected with sidewall, the top of last cover cavity is provided with left, center, right three grooves, left and right sides groove is in order to insert the sheet metal of conducting terminal, connect the groined type projection on the base wall of intermediate groove, groined type projection central authorities are provided with screw hole, be provided with at the loam cake intracavity bottom and do not penetrate the reinforcement hole, described loam cake and following cover material employing bakelite or resin or plastic material more than at least four.

4. a kind of connecing as claimed in claim 1 twisted the formula ceramic three-hole power plug, it is characterized in that porcelain head is shaped as approximate three-dimensional rectangle, porcelain head top and bottom are provided with three corresponding jacks and constitute the isosceles triangle jack, middle jack is that the circular projection that extends constitutes, left and right sides jack is a rectangle, the porcelain head bottom is provided with the groove that comprises one or more, is provided with semi-circular recesses in the middle of the porcelain head.

5. a kind of connecing as claimed in claim 1 twisted the formula ceramic three-hole power plug, it is characterized in that the screw earthing mechanism, this screw earthing mechanism comprises that the lead on first screw, L shaped bonding jumper, L shaped grounded bracket, second screw and the L shaped grounded bracket constitutes.

6. a kind of connecing as claimed in claim 1 twisted the formula ceramic three-hole power plug, it is characterized in that half three-dimensional rectangular top of described binding post structure and the fixture that top is provided with left and right sides intermediate plate, the centre is provided with louvre, the bottom is provided with extension block, extension block is the rectangle leg, and described binding post is made by a sheet metal.

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