CN208849231U - A kind of all-purpose gasoline engine spark plug cap - Google Patents

Abstract

The utility model uses a kind of all-purpose gasoline engine spark plug cap, including outer casing part, outer casing part includes the auxiliary dismounting body of the T-shaped structure of plastic packaging ontology and cross section of injection molding, the plastic packaging ontology includes the horizontal of vertical tube body and close vertical section closed end setting open at one end, and auxiliary dismounting body vertical section end is connect with vertical tube body closed end.Auxiliary dismounting body is equipped on the plastic packaging ontology of injection molding, and auxiliary dismounting body is designed to the T-shaped structure in cross section, when carrying out the dismounting of spark plug cap, since the structure of auxiliary dismounting body is special, firm holding is easy when operator is hand-held, then spark plug cap and spark plug are subjected to contraposition connection, facilitate the connection positioning of the two, avoids installation error；Simultaneously when needing replacing spark plug cap, hand-held auxiliary dismounting body can separate spark plug cap with spark plug, carry out the installation of new spark plug cap, facilitate the dismounting of spark plug cap and spark plug.

Description

A kind of all-purpose gasoline engine spark plug cap

Technical field

The utility model relates to spark plug cap technical fields, and in particular to a kind of all-purpose gasoline engine spark plug cap.

Background technique

Component of the spark plug cap as connection high-voltage line and spark plug, mainly plays two: first is that protection spark plug；By There is the resistance of a 5K or 10K in general spark plug cap, this resistance can weaken ablation of the electric spark to electrode, to protect Spark plug is protected, is prolonged its service life.Second is that igniting high-voltage electricity is passed to spark plug；Ignition voltage is effectively communicated to spark Plug, the connection of spark plug cap inside must be reliable.In addition, the insulation of spark plug cap shell must be good, if spark plug cap leaks electricity, It can cause high pressure reduction of lighting a fire, weaken spark plug spark, influence the starting performance of gasoline engine.

Spark plug cap shell in the prior art is all using injection molding, and for convenience of the demoulding of shell, shell is all light Sliding surface, when being inserted into spark plug, due to the restriction of spark plug cap structure, is leading to spark plug cap and spark plug for spark plug cap Positioning is inaccurate when tie point is installed is easy the presence of connection error；When the spark plug cap in spark plug needs replacing simultaneously, due to Spark plug cap shell is smooth, is not easy to carry out fetching disassembly.

Utility model content

For the deficiency in the presence of the prior art, the utility model provides a kind of all-purpose gasoline engine spark plug cap, solution It has determined spark plug cap and spark plug problem not easy to assemble in the prior art.

To achieve the above object, the utility model uses a kind of the following technical solution: all-purpose gasoline engine spark plug cap, Including the core being arranged in outer casing part and outer casing part；

The outer casing part includes the auxiliary dismounting body of the T-shaped structure of plastic packaging ontology and cross section of injection molding, described Plastic packaging ontology includes the horizontal of vertical tube body and close vertical tube body closed end setting open at one end；The core setting In horizontal and vertical pipe body, auxiliary dismounting body vertical section end is connect with vertical tube body closed end.

Further, the height of the auxiliary dismounting body of the T-shaped structure is 18.5-21.5mm, and auxiliary dismounting body vertical section is wide Degree is 7-9mm, and auxiliary dismounting body horizontal section length is 13-16mm.

Further, the core includes that the intracorporal tapping screw set gradually of horizontal tube, damping resistance is arranged in and leads Electrical spring and setting are in the intracorporal spark cap of vertical pipe, and wherein tapping screw tip is arranged far from vertical tube body, tapping screw spiral shell Cap end is equipped with the connecting hole being recessed inwardly, and damping resistance one end is plugged in connecting hole, the damping resistance other end and connecting spring Hold affixed, the connecting spring other end is connect with vertical tube body far from the side wall of horizontal；Spark cap is vertically arranged in vertical pipe It is connect in vivo by screw thread with vertical tube body, spark cap upper end is connect by connecting spring with power spring, and spark cap outer wall is opened Equipped with multiple perforation that layer is set, the multiple circlips for being equipped with and matching with perforation number, the part of each circlip are also enclosed outside spark cap Position is fastened in each perforation.

Further, the tapping screw is also arranged with taper pressing ring, taper pressing ring and horizontal tube close to its nut position end Internal wall connection.

Compared with the prior art, the utility model has the following beneficial effects: the utility model injection molding plastic packaging Ontology is equipped with auxiliary dismounting body, and auxiliary dismounting body is designed to the T-shaped structure in cross section, is carrying out tearing open for spark plug cap When dress, since the structure of auxiliary dismounting body is special, firm holding is easy when operator is hand-held, then by spark plug cap and spark Row contraposition connection is filled in, facilitates the connection positioning of the two, avoids installation error；Simultaneously when needing replacing spark plug cap, hold Auxiliary dismounting body can separate spark plug cap with spark plug, carry out the installation of new spark plug cap, facilitate spark plug cap and spark The dismounting of plug.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is that the utility model spark cap and circlip cooperate sectional view.

It is plastic packaging ontology 1, horizontal 11, vertical tube body 12, tapping screw 2, damping resistance 3, power spring 4, auxiliary in figure Help dismounting body 5, connecting spring 6, spark cap 7, perforation 71, recessed groove 72, circlip 8, taper pressing ring 9.

Specific embodiment

The utility model is described further with reference to the accompanying drawing.

As shown in FIG. 1 to FIG. 2, a kind of all-purpose gasoline engine spark plug cap described in the utility model, including outer casing part and The core being arranged in outer casing part；

The outer casing part includes the auxiliary dismounting body 5 of the T-shaped structure of plastic packaging ontology 1 and cross section of injection molding, institute State the horizontal 11 that plastic packaging ontology 1 includes vertical tube body 12 open at one end and is arranged close to vertical section closed end, horizontal tube Body 11 connect substantially l-shaped structure with vertical tube body 12；The auxiliary dismounting 5 vertical section end of body and vertical 12 closed end of tube body Connection.When spark plug cap is attached with spark plug mainly be attached by snap fit, due to original plastic packaging ontology 1 outside Wall is smooth, is not easy to put forth effort when being clamped with spark plug, and when replacement is also not easy to carry out disassembly with spark plug to separate；This is practical new Type is provided with auxiliary dismounting body 5 on plastic packaging ontology 1, facilitates the hand-held of spark plug cap, facilitates determining for spark plug cap and spark plug Position installation and disassembly.During fabrication, plastic packaging ontology 1 can be molded, then core is packed into plastic packaging ontology 1 and is assembled, Realize the connection between core and plastic packaging ontology 1, the core that then will be covered with plastic packaging ontology 1 is placed again into another die cavity It is interior, auxiliary dismounting body 5 is fixed on 1 design position of plastic packaging ontology, realizes effective connection of auxiliary dismounting body 5 and plastic packaging ontology 1, Three components use injection molding, and intensity is more preferable, and overall structure is more stable, in practical applications, the T-shaped structure it is auxiliary Helping the height for dismounting body 5 is preferably the height that 18.5-21.5mm is C in Fig. 1, and auxiliary dismounting 5 vertical section width of body is preferably 7-9mm It is the height of B in Fig. 1, auxiliary dismounting 5 horizontal section length of body is preferably the height that 13-16mm is A in Fig. 1, and acquired is whole Body effect is more preferable.

To make to be efficiently mounted in core in plastic packaging ontology 1, in actual design, 11 internal diameter of horizontal is set as variable diameter Setting, as shown in Figure 1, the cavity being arranged in horizontal 11 is in shoulder hole structure, macropore is arranged far from vertical tube body 12, by water Flat 11 internal diameter of tube body is set as the installation and fixation that variable diameter setting is the component of tube body inner core-body for convenience；Simultaneously for convenience of installation It is fixed in the installation of vertical 12 inner core body component of tube body, vertical 12 internal diameter of tube body is also provided with into variable-diameter structure, by from big to small Three sections be formed by connecting, minimal segment is communicated with the aperture of horizontal 11.

For core can be enable effectively to be connected in plastic packaging ontology 1, the core includes being arranged in horizontal 11 The interior tapping screw 2 set gradually, damping resistance 3 and power spring 4,2 tip of tapping screw are arranged far from vertical tube body 12, 2 screw cap end of tapping screw is equipped with the connecting hole being recessed inwardly, and 3 one end of damping resistance is plugged in connecting hole, and damping resistance 3 is another End is affixed with 6 end of connecting spring, and 6 other end of connecting spring is connect with vertical tube body 12 far from the side wall of horizontal 11；It is described Tapping screw 2 is also arranged with taper pressing ring 9 close to its nut position end, and taper pressing ring 9 is connect with 11 inner wall of horizontal；Due to Taper pressing ring 9 is rubber material, has certain deformability, and when installation, macropore and aperture is arranged in taper pressing ring 9 Connecting pin, 9 portion concave of taper pressing ring is in aperture, and 9 periphery of taper pressing ring is contacted with macropore internal diameter, by tapping screw 2 and water Flat tube body 11 is effectively fixed, and since damping resistance 3 and tapping screw 2 are grafting settings, power spring 4 is arranged in aperture hole Compression setting is carried out between bottom and damping resistance 3, then tapping screw 2, damping resistance 3 and power spring 4 are exactly integrally connected, Tapping screw 2 and horizontal 11 are carried out can be by tapping screw 2, damping resistance 3 and power spring 4 after effectively fixing Effectively fix, fixed form simply also can effectively prevent loosening.The core further includes being vertically arranged in vertical tube body 12 The interior spark cap 7 being connect by screw thread with vertical tube body 12 is specifically equipped with screw thread in vertical 12 interlude of tube body, in spark cap 7 are equipped with the screw thread being cooperatively connected, and spark cap 7 is avoided spark cap 7 and plastic packaging ontology using being threadedly coupled with vertical tube body 12 1 falls off.7 upper end of spark cap is connect by connecting spring 6 with power spring 4 simultaneously, and connecting spring 6 is compressed, can be made Connecting spring 6 is effectively contacted with power spring 4, is contacted relatively reliable.As shown in Figure 1 and Figure 2,7 outer wall of spark cap offers Multiple perforation 71 that layer is set, spark cap 7 also enclose the multiple circlips 8 for being equipped with and matching with 71 numbers of perforation, the portion of each circlip 8 outside Quartile, which is set, to be fastened in each perforation 71.It is the shape that circlip 8 is reamed side in a positive round by a string, circlip 8 is located at The part perforated at 71 just as a string on 7 inner wall circumference of spark cap, so as to the near-spherical connecting pin of spark plug protrude into it is described With part of the circlip 8 at perforation 71 can also squeeze when cooperation in spark cap 7 and contact, spark plug is further bound round Tightly, so that having while connecting stronger easy to disassemble.It is not slided for convenience of circlip 8 and the clamping of 7 outer wall of spark cap simultaneously, 7 outer wall of spark cap is additionally provided with the recessed groove 72 set along 7 outer wall ring of spark cap, and the both ends of recessed groove 72 are corresponding with 71 both ends of perforation to be connected It connects.

Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model It encloses, should all cover in the scope of the claims of the utility model.

Claims (4)

1. a kind of all-purpose gasoline engine spark plug cap, it is characterised in that: including the core being arranged in outer casing part and outer casing part；

The outer casing part includes the auxiliary dismounting body of the T-shaped structure of plastic packaging ontology and cross section of injection molding, the plastic packaging Ontology includes the horizontal of vertical tube body and close vertical tube body closed end setting open at one end, and the core is arranged in water In flat tube body and vertical pipe body, auxiliary dismounting body vertical section end is connect with vertical tube body closed end.

2. a kind of all-purpose gasoline engine spark plug cap according to claim 1, it is characterised in that: the core includes that setting exists The intracorporal tapping screw set gradually of horizontal tube, damping resistance and power spring and setting in the intracorporal spark cap of vertical pipe, Wherein tapping screw tip is arranged far from vertical tube body, and tapping screw screw cap end is equipped with the connecting hole being recessed inwardly, damping resistance One end is plugged in connecting hole, and the damping resistance other end and connecting spring end are affixed, and the connecting spring other end is remote with vertical tube body Side wall connection from horizontal；Spark cap is vertically arranged in vertical pipe body and is connect by screw thread with vertical tube body, spark cap Upper end is connect by connecting spring with power spring, and spark cap outer wall offers multiple perforation that layer is set, and is also enclosed and is set outside spark cap There are the multiple circlips to match with perforation number, the portion of each circlip is fastened in each perforation.

3. a kind of all-purpose gasoline engine spark plug cap according to claim 2, it is characterised in that: the tapping screw is close to it Nut position end is also arranged with taper pressing ring, and taper pressing ring is connect with horizontal inner wall.

4. a kind of all-purpose gasoline engine spark plug cap according to any one of claims 1 to 3, it is characterised in that: the T shape The height of the auxiliary dismounting body of structure is 18.5-21.5mm, and auxiliary dismounting body vertical section width is 7-9mm, auxiliary dismounting body water Flat segment length is 13-16mm.