CN210296866U - High-temperature anti-oxidation cap at top of spark plug - Google Patents
High-temperature anti-oxidation cap at top of spark plug Download PDFInfo
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- CN210296866U CN210296866U CN201921151672.7U CN201921151672U CN210296866U CN 210296866 U CN210296866 U CN 210296866U CN 201921151672 U CN201921151672 U CN 201921151672U CN 210296866 U CN210296866 U CN 210296866U
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- high temperature
- screw rod
- oxidation
- spark plug
- cap
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Abstract
The utility model provides an anti-oxidation cap of spark plug top high temperature relates to the anti-oxidation cap technical field of high temperature, including the spark plug body, the top of the spark plug body is seted up flutedly, the inside grafting of recess has the screw rod, the pot head that the recess was kept away from to the screw rod is equipped with the protective cap. The utility model discloses, internal thread has been seted up through the inside at the protective cap, make the surface screw thread intermeshing of this internal thread and screw rod, reach and make the protective cap can carry out the effect of combination with the screw rod fast, and the protective cap adopts oxidation barrier and high temperature resistant layer, make the metal cap of establishing high temperature resistant material at screw rod top cover, the screw rod receives high temperature deformation when preventing to carry out high temperature operation, improve screw rod high temperature resistance and oxidation resistant intensity, the effectual stress of high temperature to the screw rod that has reduced, the quality of production has been improved, the rejection rate of product has been reduced.
Description
Technical Field
The utility model relates to an anti-oxidation cap technical field of high temperature especially relates to anti-oxidation cap of spark plug top high temperature.
Background
The spark plug, commonly called as a burner, has the function of discharging a pulse high-voltage power sent by a high-voltage wire (a burner wire) to break down air between two electrodes of the spark plug to generate electric sparks so as to ignite mixed gas in a cylinder, and has the following main types: a quasi-spark plug, a lip-protruding spark plug, an electrode-type spark plug, a seat-type spark plug, a pole-type spark plug, a surface-jump spark plug, and the like, and the spark plug cooperates with an ignition system and an oil supply system to cause the engine to work, thereby largely determining the performance of the engine together.
Traditional spark plug adopts the mode of high temperature heating to process in the processing of carrying out production usually, and in the environment of high temperature, can produce the harm to the surface of screw rod, leads to the screw rod to take place high temperature deformation for the quality of production reduces, and the qualification rate of production reduces.
Disclosure of Invention
The utility model aims at solving the defects existing in the prior art, and providing a high-temperature anti-oxidation cap at the top of a spark plug.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the high-temperature anti-oxidation cap at the top of the spark plug comprises a spark plug body, wherein a groove is formed in the top of the spark plug body, a screw rod is inserted into the groove, and a protective cap is sleeved at one end, far away from the groove, of the screw rod.
Preferably, the outer surface of one end of the screw rod, which is far away from the groove, is provided with threads, and the screw rod is meshed with the internal threads of the protective cap through the threads.
Preferably, the protective cap includes a high-temperature-resistant oxidation-resistant structure, the high-temperature-resistant oxidation-resistant structure includes a base, an oxidation-resistant layer and a high-temperature-resistant layer, the oxidation-resistant layer is disposed on the outer surface of the base, and the high-temperature-resistant layer is disposed on the outer surface of the oxidation-resistant layer.
Preferably, the oxidation preventing layer is made of silver oxide and is formed on the outer surface of the substrate in an electroplating mode.
Preferably, the high temperature resistant layer is an alnico hard magnetic alloy and is formed on the outer surface of the oxidation resistant layer in an electroplating manner.
Advantageous effects
1. The utility model discloses in, internal thread has been seted up through the inside at the protective cap, make the surface screw thread intermeshing of this internal thread and screw rod, reach and make the protective cap can carry out the effect of combination with the screw rod fast, and the protective cap adopts oxidation barrier and high temperature resistant layer, make the metal cap of establishing high temperature resistant material at screw rod top cover, the screw rod receives high temperature deformation when preventing to carry out high temperature operation, improve the intensity of screw rod high temperature resistance and oxidation resistance, the effectual high temperature that has reduced is to the stress of screw rod, the quality of production has been improved, the rejection rate of product has been reduced.
Drawings
FIG. 1 is a schematic three-dimensional structure of a high-temperature oxidation-preventing cap on the top of a spark plug according to the present invention;
FIG. 2 is a schematic structural view of a cross-sectional view of the protective cap of the high-temperature anti-oxidation cap at the top of the spark plug according to the present invention;
fig. 3 is a schematic structural diagram of the inside of the protective cap of the high-temperature oxidation-proof cap at the top of the spark plug.
Illustration of the drawings:
1. a spark plug body; 2. a groove; 3. a screw; 4. a protective cap; 41. an internal thread; 42. a high-temperature resistant anti-oxidation structure; 421. a substrate; 422. an oxidation-resistant layer; 423. a high temperature resistant layer.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 1-3, the high temperature oxidation-resistant cap on the top of the spark plug comprises a spark plug body 1, a groove 2 is formed on the top of the spark plug body 1, a screw rod 3 is inserted into the groove 2, a protective cap 4 is sleeved on one end of the screw rod 3 away from the groove 2, a thread is formed on the outer surface of one end of the screw rod 3 away from the groove 2, the screw rod 3 is engaged with an internal thread 41 of the protective cap 4 through the thread, the protective cap 4 comprises a high temperature resistant oxidation-resistant structure 42, the high temperature resistant oxidation-resistant structure 42 comprises a base 421, an oxidation-resistant layer 422 and a high temperature resistant layer 423, the outer surface of the base 421 is provided with the oxidation-resistant layer 422, the oxidation-resistant layer 423 is made of silver oxide and is formed on the outer surface of the base 421 in an electroplating manner, the high temperature resistant layer 423 is made of aluminum-nickel-cobalt hard, internal thread 41 has been seted up through the inside at protective cap 4, make the surface screw thread intermeshing of this internal thread 41 and screw rod 3, reach and make protective cap 4 can carry out the effect of combination with screw rod 3 fast, and protective cap 4 adopts oxidation prevention layer 422 and high temperature resistant layer 423, make the metal cap of establishing high temperature resistant material at the cover of 3 tops of screw rod, screw rod 3 receives high temperature deformation when preventing to carry out high temperature operation, improve the intensity of 3 high temperature resistant and resistant oxidation of screw rod, the effectual stress of high temperature to screw rod 3 that has reduced, the quality of production has been improved, the rejection rate of product has been reduced.
The utility model discloses a theory of operation: internal thread 41 has been seted up through the inside at protective cap 4, make the surface screw thread intermeshing of this internal thread 41 and screw rod 3, reach and make protective cap 4 can carry out the effect of combination with screw rod 3 fast, and protective cap 4 adopts oxidation prevention layer 422 and high temperature resistant layer 423, make the metal cap of establishing high temperature resistant material at the cover of 3 tops of screw rod, screw rod 3 receives high temperature deformation when preventing to carry out high temperature operation, improve the intensity of 3 high temperature resistant and resistant oxidation of screw rod, the effectual stress of high temperature to screw rod 3 that has reduced, the quality of production has been improved, the rejection rate of product has been reduced.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. Anti-oxidation cap of spark plug top high temperature, including spark plug body (1), its characterized in that: the spark plug is characterized in that a groove (2) is formed in the top of the spark plug body (1), a screw rod (3) is inserted into the groove (2), and a protective cap (4) is sleeved at one end, far away from the groove (2), of the screw rod (3).
2. The high temperature oxidation cap for the top of a spark plug of claim 1, wherein: the outer surface of one end, far away from the groove (2), of the screw rod (3) is provided with threads, and the screw rod (3) is meshed with the inner threads (41) of the protective cap (4) through the threads.
3. The high temperature oxidation cap for the top of a spark plug of claim 1, wherein: the protective cap (4) comprises a high-temperature-resistant anti-oxidation structure (42), the high-temperature-resistant anti-oxidation structure (42) comprises a base body (421), an anti-oxidation layer (422) and a high-temperature-resistant layer (423), the anti-oxidation layer (422) is arranged on the outer surface of the base body (421), and the high-temperature-resistant layer (423) is arranged on the outer surface of the anti-oxidation layer (422).
4. The high temperature oxidation cap for the top of a spark plug of claim 3, wherein: the anti-oxidation layer (422) is made of silver oxide and is formed on the outer surface of the base body (421) in an electroplating mode.
5. The high temperature oxidation cap for the top of a spark plug of claim 3, wherein: the high temperature resistant layer (423) is made of alnico hard magnetic alloy and is formed on the outer surface of the anti-oxidation layer (422) in an electroplating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151672.7U CN210296866U (en) | 2019-07-22 | 2019-07-22 | High-temperature anti-oxidation cap at top of spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151672.7U CN210296866U (en) | 2019-07-22 | 2019-07-22 | High-temperature anti-oxidation cap at top of spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210296866U true CN210296866U (en) | 2020-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921151672.7U Active CN210296866U (en) | 2019-07-22 | 2019-07-22 | High-temperature anti-oxidation cap at top of spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210296866U (en) |
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2019
- 2019-07-22 CN CN201921151672.7U patent/CN210296866U/en active Active
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