CN201789121U

CN201789121U - Batten-type porcelain dual-purpose three-jack power plug

Info

Publication number: CN201789121U
Application number: CN2010202102952U
Authority: CN
Inventors: 朱少琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-28
Filing date: 2010-05-28
Publication date: 2011-04-06
Anticipated expiration: 2020-05-28

Abstract

The utility model relates to the technical field of power plugs, in particular to a batten-type porcelain dual-purpose three-jack power plug, which is characterized in that the power plug is provided with a two-jack or three-jack circular plug structure or plug structure in the triangular shape, a grounded terminal, a clamping protection device, a screw grounding mechanism and leads, wherein grounded metal clamping protection strips, a porcelain head, a base upper cover and a base lower cover are integrally connected to form the clamping protection device, the leads are used for connecting the grounded metal clamping protection strips with the grounded terminal, so that grounded metal fixing protection strips are grounded. Compared with the prior art, the batten-type porcelain dual-purposed three-jack power plug has expanded functions, is added with a grounding mechanism on the base of the original porcelain head combined with Bakelite, utilizes the grounding mechanism to realize grounding of independent metal parts in the power plug and solves the problem of unstable inner current of the existing power plug, connection between the porcelain head and a base is firm and safe as the porcelain head is coated by the metal clamping protection strips, the structure of a wiring post of a conductive terminal is novel, the triangular plug can be plugged reliably and safely, and the power plug is low in cost, wide in application and worthy of being popularized and applied.

Description

Strip ceramic dual-use three-hole power plug

Technical field

The utility model is created and is related to attaching plug technical field, specifically a kind of strip ceramic dual-use 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 Chinese character pin-shaped structure plug on " left side zero; right fire; go up ground connection ", also has electrical appliance when heating up water etc., water can flow in the circuit 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 Chinese character pin-shaped 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 Chinese character pin-shaped plug can not be used for round plug.

The utility model content

The purpose of this utility model overcomes the shortcoming of above-mentioned prior art; a kind of strip ceramic dual-use three-hole power plug is provided; can be used for round plug; can be used for Chinese character pin-shaped plug again; for the electric current of this attaching plug that prevents to flow through produces problem of unstable; the screw earthing mechanism that provides a metal clamping ceiling and porcelain head and pedestal to link into an integrated entity is avoided the attaching plug of no earthing mechanism in the prior art, strengthens being connected firmly and safety between porcelain head and the pedestal.

For achieving the above object, design a kind of ceramic dual-use three-hole power plug, comprise porcelain head (1), pedestal loam cake (2) and lower cover (3) are fastened and connected, be provided with three jacks of isosceles triangle (4) in the porcelain head (1), be provided with conducting terminal (5) and (6) in the pedestal of left and right sides jack, the end of conducting terminal is provided with lead and connects, socket is provided with adapter sleeve (7), it is characterized in that this attaching plug is provided with round plug or Chinese character pin-shaped plug construction and the earth terminal that inserts two or three, by grounded metal clamping ceiling (8) and porcelain head (1), clamping protective device and screw earthing mechanism that pedestal loam cake (2) and lower cover (3) link into an integrated entity, in order to connect the lead on grounded metal clamping ceiling and this earth terminal, make fixedly ceiling ground connection of grounded metal, the jack of described porcelain head conducting terminal is made of the jack that inserts round plug or Chinese character pin-shaped plug the circular upper part and square lower part combination of shapes, described conducting terminal is made first and second binding posts by sheet metal, described binding post structure is that semicylinder and extension block constitute, it is semicylinder that the two ends at semicylinder top are provided with the fixture and the left side that the corresponding recesses composition right side, top is a left and right sides intermediate plate, the centre of semicylinder is provided with several louvres, extension block is a rectangle, and four projections that are provided with symmetry on rectangular sheet metal are in order to lead fixed;

Approximate bottle shape of the pedestal profile that pedestal loam cake and lower cover are fastened and connected or geometry, 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, the rectangular recess in described median wall centre position is provided with three jacks of upper, middle and lower, three jacks of described upper, middle and lower are corresponding with the screw hole of pedestal loam cake and lower cover, in order to connect the connector of earth terminal, described loam cake or lower cover adopt bakelite or plastics or resin material to make;

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, in order to prevent that lead from sliding, the top of last cover cavity is a groove, the bottom portion of groove wall is provided with left, center, right three grooves, left and right sides groove connects the intersecting parallels projection in order to insert the sheet metal of conducting terminal on the base wall of intermediate groove, intersecting parallels projection central authorities are provided with screw hole, intersecting parallels projection top and base wall are provided with corresponding slot, are provided with at the loam cake intracavity bottom and do not penetrate the reinforcement hole 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 a rectangle, left and right sides jack shape is circular by top and the bottom is that rectangle is formed, the porcelain head bottom is provided with the groove that comprises one or more, is provided with one in the middle of the porcelain head for the groove that inserts grounded metal clamping ceiling, described porcelain head material is made by conventional ceramic or special cermacis or refractory ceramics;

The clamping protective device is embedded by the porcelain head lower recess and connects pedestal top rectangular recess, metal clamping ceiling parcel porcelain head penetrates two jacks up and down on the pedestal center of top wall rectangular recess, the loam cake of pedestal adopts screw nut to be connected with the screw hole of lower cover, described metal clamping ceiling is provided with the window of corresponding porcelain head crown center jack, and on metal clamping ceiling window bottom, be provided with a projection and stretch into porcelain head crown center jack, slide in order to clamp porcelain head;

Screw earthing mechanism, this screw earthing mechanism comprise that screw and metal clamping ceiling upper and lower side parcel porcelain head constitutes from the lead that penetrates in the hole up and down at pedestal top to pedestal inner chamber and the ceiling respectively;

Earthing mechanism embeds hole on the porcelain head crown center by grounded metal clamping ceiling one end, the ceiling other end passes in the last hole of pedestal loam cake crown center groove along the porcelain head groove, ceiling is provided with screw hole and wire connection hole, adopt the earthing mechanism of screw and nut fixed base frame, be connected the embedded groove that is provided with one or more at least between described porcelain head and the pedestal top and fix;

Earthing mechanism stretches on the porcelain head crown center hole by grounded metal folder ceiling one end and wears to the pedestal inner chamber, and the ceiling other end passes the last hole of pedestal loam cake crown center groove, the earthing mechanism of employing screw and nut fixed base frame and ceiling along the porcelain head groove;

First binding post is made of semicylinder and extension block, two ends, described semicylinder top are provided with corresponding recesses, be semicylinder for the intermediate plate fixture reaches the left side again about forming the right side, top and being, be provided with several louvres in the centre of semicylinder, the semicylinder lower left quarter is provided with an extension block, extension block is the rectangle leg, and leg is provided with four projections, and described first binding post is made by a sheet metal;

Second binding post is provided with an extension block by the semicylinder right lower quadrant, and extension block is the rectangle leg, and it is opposite with the first binding post support that leg is provided with four projections, and described second binding post is made by a sheet metal.

The utility model compared with prior art; function increases, and increases earthing mechanism on original porcelain head and basis that bakelite combines, utilizes earthing mechanism with the metal parts ground connection of isolating in the attaching plug; solve existing power supply plug inside electric current instability problem; adopt the safety that is connected firmly between metal clamping ceiling parcel porcelain head and the pedestal, the binding post novel structure of conducting terminal, the guaranty shaped plug inserts 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 structural map of cover cavity on the pedestal of the present utility model;

Fig. 3 is a pedestal lower cover profile structural map of the present utility model;

Fig. 4 is the D structure figure of the utility model porcelain head;

Fig. 5 is the D structure figure of the utility model metal clamping ceiling;

Fig. 6 is the D structure figure of another embodiment metal clamping ceiling of the utility model;

Fig. 7 is the D structure figure D structure figure of another embodiment metal clamping ceiling of the present utility model;

Fig. 8 is the structural map of the utility model first binding post;

Fig. 9 is the structural map of the utility model second binding post;

Figure 10 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; 2 is porcelain head; 3 is metal clamping ceiling, and 4 is the screw connector, and 5 is sleeve; dual-use three-hole power plug is clamped in the middle of the porcelain head by metal clamping ceiling; ceiling penetrates in the hole up and down of pedestal crown center position at two ends up and down, adopts screw and nut fixedly connected, and the pedestal bottom is provided with sleeve.

Referring to Fig. 2,21 is loam cake, 22 is the screw connector, 23 is striped, 24 is the semicircle orifice of bottom, described loam cake external form is identical with the lower cover appearance structure, shape approximation bottle type, the loam cake center upper portion is provided with the screw connector, the loam cake lower case is provided with equidistant equally spaced concave and convex stripe, and described loam cake and lower cover adopt bakelite material or plastic material or resin material to make, and described material is an ABS resin, polyester, polytetrafluoroethylene, phenolic plastics, aminoplast etc., at first hold loam cake and lower cover successfully mould, adopt above-mentioned material raw material injection mo(u)lding or compression molding.

Referring to Fig. 3; 31,32,33 is last cover cavity projection; 34 is the loam cake top groove; 35 is last tops lower wall intermediate groove; 36 and 37 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; 38 is jack; be provided with corresponding jack (39) at the corresponding top of 38 jacks, in order to the insertion of ceiling, 40 is the intersecting parallels projection; intersecting parallels projection top is connected with last tops lower wall; 41 is the screw connector on the intersecting parallels projection, and 42 is semicircle orifice, in order to snap in the connection sleeve.The inner-cavity structure of described loam cake and lower cover is identical.

Referring to Fig. 4; 41 is porcelain head; 42 is hole, a porcelain head left side; 43 is the right hole of porcelain head; 44 is the porcelain head interstitial hole; 45 is the groove of porcelain head; comprise semicircle; trapezoidal; half rectangle; half square, in order to the embedding of metal clamping ceiling, 46 is the tongue on the porcelain head; connect pedestal top corresponding grooves in order to embed; described tongue comprises one or more or is provided with insert, and described porcelain head material adopts conventional ceramic or special cermacis or high-temperature ceramic materials to make, and described conventional ceramic is an electrotechnical ceramics etc.; as high silicon porcelain etc.; described special cermacis is a high alumina matter porcelain etc., and described refractory ceramics is an oxide ceramics etc., according to the requirement of Fig. 4; hold mould successfully, adopt compression molding or cast molding.

Referring to Fig. 5; 51 ceiling tops are the sheet metal of notch cuttype; 52 is screw hole; 53 is the rectangle sheet metal of ceiling left part, and 54 is the window of corresponding porcelain head mesopore, and 55 are provided with a projection bottom rectangular sheet metal window; projection is difficult for sliding in order to block the porcelain head mesopore; 56 is the sheet metal of ceiling bottom, and 57 is screw hole, and 58 is wire connection hole.

Referring to Fig. 6, Fig. 6 provides the connector of another embodiment ceiling, and described connector is approximate L type, and 61 is projection, and 62 is the ceiling contiguous block, and 63 is the sheet metal of ceiling bottom, and 64 is screw hole, and 65 is wire connection hole.Described ceiling connector one end penetrates and clamps from the porcelain head mesopore, and the connector other end penetrates to the pedestal inner chamber from the pedestal screw hole, and connects the earth lead formation, and described porcelain head embeds the pedestal top must be provided with the corresponding grooves composition.

Referring to Fig. 7, Fig. 7 provides the connector of another embodiment ceiling, and 71 sheet metals for ceiling top are rectangles, and 72 is ceiling left part contiguous block, and 73 is the sheet metal of ceiling bottom, and 74 is screw hole, and 75 is wire connection hole, and 76 is the screw hole of bottom.Described connector one end penetrates to the pedestal inner chamber from the porcelain head mesopore, and connects lead, and the connector other end penetrates from the pedestal screw hole to the pedestal inner chamber and constitutes.

The execution mode of described Fig. 5 or Fig. 6 or Fig. 7 is to hold mould earlier successfully, then with sheet metal or copper sheet compression molding or punch forming.

Referring to Fig. 8,81 is first binding post, the right side, top is a clamping sheet mechanism (82) up and down, the left side is semicylinder (83), the clamping sheet mechanism bottom is provided with an extension bar (84) up and down, extend bar and be provided with 85,86,87,88 projections, described cylinder is provided with louvre (89), and described first binding post adopts a sheet metal or copper sheet to utilize mould compression moulding.

Referring to Fig. 9, second binding post is opposite with the connection that first binding post is distinguished the end extension bar (91) that is binding post, and described second binding post adopts a sheet metal or copper sheet to utilize mould compression moulding.

Referring to Figure 10, Figure 10 has provided sleeve, and described sleeve is provided with two grooves (101), (102) on cylinder, adopts plastic material to make.

Claims

1. ceramic dual-use three-hole power plug; comprise porcelain head (1); pedestal loam cake (2) and lower cover (3) are fastened and connected; be provided with three jacks of isosceles triangle (4) in the porcelain head (1); be provided with conducting terminal (5) and (6) in the pedestal of left and right sides jack; the end of conducting terminal is provided with lead and connects; socket is provided with adapter sleeve (7); it is characterized in that this attaching plug is provided with round plug or Chinese character pin-shaped plug construction and the earth terminal that inserts two or three; by grounded metal clamping ceiling (8) and porcelain head (1); clamping protective device and screw earthing mechanism that pedestal loam cake (2) and lower cover (3) link into an integrated entity; in order to connect the lead on grounded metal clamping ceiling and this earth terminal; make fixedly ceiling ground connection of grounded metal; the jack of described porcelain head conducting terminal is made of the jack that inserts round plug or Chinese character pin-shaped plug the circular upper part and square lower part combination of shapes; described conducting terminal is made first and second binding posts by sheet metal; described binding post structure is that semicylinder and extension block constitute; it is semicylinder that the two ends at semicylinder top are provided with the fixture and the left side that the corresponding recesses composition right side, top is a left and right sides intermediate plate; the centre of semicylinder is provided with several louvres; extension block is a rectangle, and four projections that are provided with symmetry on rectangular sheet metal are in order to lead fixed.

2. a kind of ceramic dual-use three-hole power plug as claimed in claim 1, it is characterized in that the approximate bottle shape of pedestal profile that pedestal loam cake and lower cover are fastened and connected, 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, the rectangular recess in described median wall centre position is provided with three jacks of upper, middle and lower, three jacks of described upper, middle and lower are corresponding with the screw hole of pedestal loam cake and lower cover, in order to connect the connector of earth terminal, described loam cake or lower cover adopt bakelite or plastics or resin material to make.

3. a kind of ceramic dual-use three-hole power plug as claimed in claim 1, 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, in order to prevent that lead from sliding, the top of last cover cavity is a groove, the bottom portion of groove wall 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 intersecting parallels projection on the base wall of intermediate groove, intersecting parallels projection central authorities are provided with screw hole, and intersecting parallels projection top and base wall are provided with corresponding slot, are provided with at the loam cake intracavity bottom and do not penetrate the reinforcement hole more than at least four.

4. a kind of ceramic dual-use three-hole power plug as claimed in claim 1; 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 a rectangle; left and right sides jack shape is circular by top and the bottom is that rectangle is formed; the porcelain head bottom is provided with the groove that comprises one or more, is provided with one in the middle of the porcelain head for the groove that inserts grounded metal clamping ceiling.

5. a kind of ceramic dual-use three-hole power plug as claimed in claim 1; it is characterized in that the clamping protective device embeds connection pedestal top rectangular recess by the porcelain head lower recess; metal clamping ceiling parcel porcelain head penetrates two jacks up and down on the pedestal center of top wall rectangular recess; the loam cake of pedestal adopts screw nut to be connected with the screw hole of lower cover; described metal clamping ceiling is provided with the window of corresponding porcelain head crown center jack; and on metal clamping ceiling window bottom, be provided with a projection and stretch into porcelain head crown center jack, slide in order to clamp porcelain head.

6. a kind of ceramic dual-use three-hole power plug as claimed in claim 1; it is characterized in that the screw earthing mechanism, this screw earthing mechanism comprises that screw and metal clamping ceiling upper and lower side parcel porcelain head constitutes from the lead that penetrates in the hole up and down at pedestal top to pedestal inner chamber and the ceiling respectively.

7. a kind of ceramic dual-use three-hole power plug as claimed in claim 1; it is characterized in that earthing mechanism embeds hole on the porcelain head crown center by grounded metal clamping ceiling one end; the ceiling other end passes in the last hole of pedestal loam cake crown center groove along the porcelain head groove; ceiling is provided with screw hole and wire connection hole; adopt the earthing mechanism of screw and nut fixed base frame, be connected the embedded groove that is provided with one or more at least between described porcelain head and the pedestal top and fix.

8. a kind of ceramic dual-use three-hole power plug as claimed in claim 1; it is characterized in that earthing mechanism stretches on the porcelain head crown center hole by grounded metal folder ceiling one end and wears to the pedestal inner chamber; the ceiling other end passes the last hole of pedestal loam cake crown center groove along the porcelain head groove, adopts the earthing mechanism of screw and nut fixed base frame and ceiling.

9. a kind of ceramic dual-use three-hole power plug as claimed in claim 1, it is characterized in that first binding post is made of semicylinder and extension block, described semicylinder lower left quarter is provided with an extension block, extension block is the rectangle leg, leg is provided with four projections, and described first binding post is made by a sheet metal.

10. a kind of ceramic dual-use three-hole power plug as claimed in claim 1, it is characterized in that second binding post is provided with an extension block by the semicylinder right lower quadrant, extension block is the rectangle leg, it is opposite with the first binding post leg that leg is provided with four projections, and described second binding post is made by a sheet metal.