CN2236703Y

CN2236703Y - Disassembled spark plug

Info

Publication number: CN2236703Y
Application number: CN 95228404
Authority: CN
Inventors: 陈亚林
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-23
Filing date: 1995-11-23
Publication date: 1996-10-02
Anticipated expiration: 2005-11-23

Abstract

The utility model relates to a disassembled spark plug, which is composed of a screw cap, a piston, a casing, and a lateral electrode. The utility model is characterized in that the casing comprises a cap-screw and a cap-screw cap matched with the cap-screw; a through hole is formed in the middle of the cap-screw; the cap-thread cap has a screw on the inner hole thereof, a boss under the bottom thereof, and a through hole in the middle thereof; the piston is composed of a metal rod cast in an insulator, a carbon rod, and a central electrode; the screw cap is screwed on the upper end of the metal rod; the insulator has a circular groove at the upper part thereof and a boss under the bottom thereof; the piston is inserted into the cap-screw cap and locking fixed by the screw. The utility model has the advantages of novel design, simple structure, convenient replacement and cleaning, and raw materials saving.

Description

Can separate the formula spark plug

The utility model relates to a kind of spark plug, a kind of formula spark plug of separating of more specifically saying so.

The spark plug that is used to light a fire on the motor vehicles such as automobile, motorcycle is that piston and housing are formed an integral body at present, therefore increase or owing to open out floods when causing short circuit to clean spark plug very inconvenient and be difficult for cleaning up when sooting of the spark plug, thereby influence is used, so often need more renew spark plug, causing very, billow gives up.

The purpose of this utility model provides a kind of modern design, and is simple in structure, easy to use, the separated formula spark plug that saves material.

The purpose of this utility model is realized by following technical scheme.

The utility model is made up of with the lateral electrode that is fixed in shell end the piston that nut inserts in the housing, it is characterized in that:

A, housing comprise and the cap screw and with its coupling and the cap nut, and have a through hole in the middle of the cap screw, and screw is arranged at cap nut endoporus top, a convex is arranged at the bottom, there is a through hole centre it on;

B, piston are formed by watering the Metallic rod, carbon rod and the central electrode that cast from the insulator, and nut is twisted on the screw of Metallic rod upper end, and columniform insulator top is furnished with circular groove, and a convex is arranged at the bottom.

During use piston is inserted and the cap nut, the convex of its insulator bottom is placed and the convex of cap nut endoporus bottom on, the through hole in the middle of the convex is passed in the piston lower end, also the cap screw is placed in outside the piston insulator again, by its outer screw twist in and the screw on cap nut endoporus top, thereby be locked insulator, prevent that gas leakage promptly can be used on automobile, the motorcycle.When need cleaning the carbon deposit on it, only need turn on and the cap screw takes out piston and does to clean or change piston and get final product.

The utility model has the advantages that the unitary part for separating because of piston and housing, the piston of therefore normal rapid wear can be changed easily, and therefore cleaned and changed convenience is used freely, the housing of rapid wear ring can not use for a long time and need not do unnecessary scrapping simultaneously, thereby can save great deal of raw materials.

Another advantage of the present utility model is novel in design, and simple in structure, cost is low, is beneficial to and promotes the use of.

Fig. 1 is the utility model structural representation,

Fig. 2 is the piston structure schematic diagram,

Fig. 3 is and cap screw structural schematic diagram,

Fig. 4 is and cap nut structure schematic diagram.

By the following examples, in conjunction with the accompanying drawings, the utility model is done to describe further.

Embodiment:

(referring to Fig. 1,2,3,4) is processed into the also cap screw 5 of steel and the also cap nut 6 that is complementary with it with housing 2, also opening a through hole 7 in the middle of the cap screw 5, makes its top be processed into the outer-hexagonal nut, and the bottom is the cylinder of a band screw.Also be processed on cap nut 6 tops, hexagonal (hexagon)nut, and the middle part is a cylinder, and the bottom is the cylinder of tyre screw, connects a hook shape lateral electrode 4 on the end port, and endoporus top is processed with screw, and the bottom is provided with convex, the middle through hole 8 of opening on it.Metallic rod 10, carbon rod 11 and central electrode 12 are watered again and cast from the insulator 9, form piston 3, columniform insulator 9 is processed into top and is furnished with four road circular grooves 13, and a convex 14 is arranged at the bottom.Nut 1 is twisted on the screw of Metallic rod 10 upper ends.Piston 3 inserted in and cap nut 6 after will and cap screw 5 be placed in piston and tighten spiral shell outward and buckle and promptly form a spark plug that can disintegrate formula.

Claims

1, a kind of formula spark plug of separating inserts in the piston (3) in the housing (2) and the lateral electrode (4) that is fixed on housing (2) end is formed by nut (1), it is characterized in that:

A, housing (2) comprise and cap screw (5) and with its coupling and cap nut (6), and have a through hole (7) in the middle of the cap screw (5), and screw is arranged at cap nut (6) endoporus top, a convex is arranged at the bottom, there is a through hole (8) centre it on;

B, piston (3) are formed by watering the Metallic rod (10), carbon rod (11) and the central electrode (12) that cast from the insulator (9), nut (1) is twisted on the screw of Metallic rod (10) upper end, columniform insulator (9) top is furnished with circular groove (13), and a convex (14) is arranged at the bottom.

2, spark plug according to claim 1 is characterized in that: described and cap screw (5) top is the outer-hexagonal nut, and the bottom is the cylinder of a tyre screw.

3, spark plug according to claim 1 is characterized in that: described and cap nut (6) top is the outer-hexagonal nut, and the middle part is a cylinder, and the bottom is the cylinder of tyre screw, and a lateral electrode (4) is arranged on the end port.