CN210396954U - Spark plug bush and have its engine ignition system - Google Patents
Spark plug bush and have its engine ignition system Download PDFInfo
- Publication number
- CN210396954U CN210396954U CN201920979396.7U CN201920979396U CN210396954U CN 210396954 U CN210396954 U CN 210396954U CN 201920979396 U CN201920979396 U CN 201920979396U CN 210396954 U CN210396954 U CN 210396954U
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- spark plug
- connecting portion
- cylinder head
- plug bush
- ignition system
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Abstract
The utility model belongs to the technical field of the engine, concretely relates to spark plug bush and have its engine ignition system, this spark plug bush includes body, first connecting portion and second connecting portion, and first connecting portion are connected in the one end of body, and first connecting portion are connected with the cylinder head interference, and the other end at the body is connected to the second connecting portion, and the second connecting portion set to can be connected with assembly and disassembly tools, according to the utility model discloses a spark plug bush is connected with the cylinder head interference through first connecting portion and is realized sealing and fixing, need not to reuse the plug, has reduced the quantity of spare part, and the setting of second connecting portion is convenient for carry out the dismantlement and the change of spark plug bush.
Description
Technical Field
The utility model belongs to the technical field of the engine, concretely relates to spark plug bush and have its engine ignition system.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
At present, a plug compression mode is usually adopted for an engine spark plug bush, one mode of connection between the lower end face and the bottom face of a cylinder cover is direct inclined plane fitting sealing, but the requirement on machining size precision is high, and the other mode is threaded connection, but when the spark plug is detached and maintained, the spark plug bush is easy to loosen, the spark plug is easy to lose efficacy, and therefore water leakage in an engine cylinder is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at least solving the problem of the loosening and water leakage of the spark plug bush caused during the assembling and disassembling of the spark plug. The purpose is realized by the following technical scheme:
the utility model discloses a first aspect provides a spark plug bush is applied to the cylinder head, including body, first connecting portion and second connecting portion, first connecting portion are connected the one end of body, just first connecting portion with the cylinder head interference is connected, the second connecting portion are connected the other end of body, just the second connecting portion set to can be connected with assembly and disassembly tools.
According to the utility model discloses spark plug bush is connected through first connecting portion and cylinder head interference and is realized sealing and fixed, need not to reuse the plug, has reduced the quantity of spare part, and the setting of second connecting portion is convenient for carry out spark plug's dismantlement and change.
In addition, the spark plug bush according to the embodiment of the present invention may further have the following additional technical features:
in some embodiments of the invention, a thread is provided in the second connecting portion, the thread being configured to cooperate with the assembly and disassembly tool.
In some embodiments of the present invention, a joint portion is provided in the second connecting portion, the joint portion being configured to be connected to the mounting and dismounting tool.
In some embodiments of the present invention, a wall thickness of the first connection portion is greater than a wall thickness of the body.
In some embodiments of the invention, a wall thickness of the second connecting portion is greater than a wall thickness of the body.
In some embodiments of the present invention, the first connecting portion, the body and the second connecting portion are made of stainless steel.
The utility model provides an engine ignition system in a second aspect, which is provided with the spark plug bush of any one of the technical proposal, and also comprises a cylinder cover and a spark plug;
the spark plug bushing is connected in the cylinder head;
the spark plug is connected to the cylinder head through the spark plug bush.
The utility model discloses engine ignition system has the same advantage with the spark plug bush in the above-mentioned embodiment, in addition, with spark plug lug connection to the cylinder head, not connecting on the spark plug bush, this kind of mode of setting can avoid arousing spark plug bush not hard up sealed inefficacy when the dismouting is repeated in the maintenance to the spark plug, causes the condition of leaking.
In some embodiments of the present invention, a third connecting portion is provided on the cylinder head, the third connecting portion being configured to mount the spark plug.
In some embodiments of the invention, the third connecting portion is threadedly engaged with the spark plug.
In some embodiments of the present invention, a seal is disposed between the spark plug bushing and the cylinder head.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic cross-sectional view of a spark plug liner according to an embodiment of the present invention installed in a cylinder;
FIG. 2 is a cross-sectional view of the spark plug insert shown in FIG. 1;
fig. 3 is a schematic sectional structure diagram of an engine ignition system according to an embodiment of the present invention.
The reference symbols in the drawings denote the following:
1. a spark plug bushing; 11. a body; 12. a first connection portion; 13. a second connecting portion;
2. a cylinder head; 21. a third connecting portion;
3. a spark plug.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 3, a first aspect of the present invention provides a spark plug bush of an embodiment, which is applied to a cylinder head 2, and includes a body 11, a first connecting portion 12 and a second connecting portion 13, wherein the first connecting portion 12 is connected to one end of the body 11, the first connecting portion 12 is connected to the cylinder head 2 in an interference manner, the second connecting portion 13 is connected to the other end of the body 11, and the second connecting portion 13 is configured to be capable of being connected to an assembling and disassembling tool.
According to the utility model discloses the spark plug bush, first connecting portion 12 is connected with 2 interference of cylinder head, the interference is connected and can be prevented from taking place relative rotation between spark plug bush 1 and the cylinder to this realizes sealedly and fixedly, the leakproofness has been improved, in addition, need not to reuse plug to compress tightly spark plug bush 1, the quantity of spare part has been reduced, the connected mode is simple, machining precision has been reduced, and cooperate through assembly and disassembly tools and second connecting portion 13, can easily take out spark plug bush 1 from cylinder head 2, so that dismantle and change it.
In some embodiments of the present invention, the second connecting portion 13 is a screw thread disposed in the second connecting portion, and the dismounting tool can be a rod-shaped member provided with an external screw thread, and after being screwed by the internal and external screw threads, the dismounting tool can be pulled to take out the spark plug bush 1.
In some embodiments of the present invention, the second connecting portion 13 is a groove or a protrusion disposed in the second connecting portion, and the dismounting tool can be a rod-shaped member provided with a hook portion, and after being engaged with the hook portion through the groove or the protrusion, the dismounting tool can be pulled to take out the spark plug bush 1.
The utility model discloses an in some embodiments, the wall thickness of first connecting portion 12 and second connecting portion 13 all is greater than the wall thickness of body 11, because need cooperate with the assembly and disassembly tools at first connecting portion 12, need carry out the processing of screw thread, arch or recess, can weaken the intensity and the rigidity of first connecting portion 12, consequently strengthen the wall thickness of first connecting portion 12, increase of service life, and in the same way, second connecting portion 13 adopts the interference with cylinder head 2 to be connected, in order to prevent its fracture and deformation, consequently strengthen the wall thickness of second connecting portion 13, guarantee its intensity and rigidity.
The utility model discloses an in some embodiments, first connecting portion 12, body 11 and second connecting portion 13 all adopt stainless steel, and stainless steel improves holistic intensity, non-deformable, and processing is simple, and the cost is lower.
The second aspect of the present invention provides an engine ignition system of an embodiment, having the spark plug bush 1 of the above embodiment, further comprising a cylinder head 2 and a spark plug 3;
the spark plug bush 1 is connected in the cylinder head 2;
the spark plug 3 is attached to the cylinder head 2 through the spark plug bush 1.
The utility model discloses engine ignition system has the same advantage with spark plug bush 1 in the above-mentioned embodiment, in addition, with spark plug 3 lug connection to cylinder head 2, not connecting on spark plug bush 1, this kind of mode of setting can avoid arousing spark plug bush 1 not hard up sealed inefficacy when maintaining the dismouting to spark plug 3, causes to leak.
In some embodiments of the present invention, the third connecting portion 21 is provided on the cylinder head 2, the third connecting portion 21 is an internal thread in one embodiment, the internal thread cooperates with the external thread of the spark plug 3 to complete the installation of the spark plug 3, and the structure of installing the spark plug 3 on the spark plug bush 1 in the prior art is changed, and this kind of arrangement can avoid maintaining the spark plug 3 and make the spark plug bush 1 loose and seal the failure when repeatedly disassembling and assembling, resulting in the water leakage.
In some embodiments of the present invention, one end (the first connecting portion 12) of the spark plug bush 1 is connected to the cylinder head 2 in an interference manner to realize sealing, and a sealing member is provided between the outside of the other end (the second connecting portion 13) and the cylinder head 2, and in one embodiment, a rubber sealing O-ring is adopted to enhance the sealing performance between the spark plug 3 and the cylinder head 2, thereby avoiding water leakage.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A spark plug bushing for a cylinder head, comprising:
a body;
the first connecting part is connected to one end of the body and is in interference connection with the cylinder cover;
a second connecting portion connected to the other end of the body, and configured to be connectable with a disassembly and assembly tool.
2. The spark plug bushing of claim 1 wherein threads are provided in said second connecting portion, said threads configured to engage said removal tool.
3. The spark plug bushing of claim 1 wherein a clamping portion is provided in said second connecting portion, said clamping portion configured to clamp with said removal tool.
4. The spark plug bushing of claim 1, wherein a wall thickness of the first connection portion is greater than a wall thickness of the body.
5. The spark plug bushing of claim 1, wherein a wall thickness of the second connecting portion is greater than a wall thickness of the body.
6. The spark plug bushing of claim 1, wherein said first connecting portion, said body, and said second connecting portion are each stainless steel.
7. An engine ignition system, characterized by having the spark plug bush according to any one of claims 1 to 6, further comprising a cylinder head and a spark plug;
the spark plug bushing is connected in the cylinder head;
the spark plug is connected to the cylinder head through the spark plug bush.
8. The engine ignition system of claim 7, wherein a third connection is provided on the cylinder head, the third connection being configured to mount the spark plug.
9. The engine ignition system of claim 8, wherein the third connecting portion is threadably engaged with the spark plug.
10. The engine ignition system of claim 7, wherein a seal is disposed between the spark plug bushing and the cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920979396.7U CN210396954U (en) | 2019-06-25 | 2019-06-25 | Spark plug bush and have its engine ignition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920979396.7U CN210396954U (en) | 2019-06-25 | 2019-06-25 | Spark plug bush and have its engine ignition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210396954U true CN210396954U (en) | 2020-04-24 |
Family
ID=70351080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920979396.7U Active CN210396954U (en) | 2019-06-25 | 2019-06-25 | Spark plug bush and have its engine ignition system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210396954U (en) |
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2019
- 2019-06-25 CN CN201920979396.7U patent/CN210396954U/en active Active
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