CN210289990U - Oil leakage prevention device for spark plug bushing of gas generator set - Google Patents
Oil leakage prevention device for spark plug bushing of gas generator set Download PDFInfo
- Publication number
- CN210289990U CN210289990U CN202020098362.XU CN202020098362U CN210289990U CN 210289990 U CN210289990 U CN 210289990U CN 202020098362 U CN202020098362 U CN 202020098362U CN 210289990 U CN210289990 U CN 210289990U
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- Prior art keywords
- spark plug
- plug bush
- oil
- rocker arm
- bush
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- 230000002265 prevention Effects 0.000 title claims abstract description 10
- 230000006835 compression Effects 0.000 claims abstract description 24
- 238000007906 compression Methods 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 21
- 239000010705 motor oil Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 4
- 239000010721 machine oil Substances 0.000 claims description 2
- 239000000446 fuel Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000010466 nut oil Substances 0.000 description 1
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model discloses an oil leakage prevention device for a spark plug bush of a gas generator set, which mainly relates to the technical field of generator sets, and comprises an upper spark plug bush, a lower spark plug bush and a spark plug, wherein the lower spark plug bush is arranged in a cylinder cover and is compressed by the upper spark plug bush, the upper spark plug bush is arranged at the top of the cylinder cover and in a rocker arm chamber, the lower part of the upper spark plug bush is provided with a compression platform, the compression platform is provided with a compression device, the upper part of the upper spark plug bush is provided with an external thread, the compression nut is connected with the external thread at the upper part of the upper spark plug bush, the upper spark plug bush is fixed on the rocker arm chamber cover at the top of the rocker arm chamber, the inner diameters of the upper spark plug bush and the lower spark plug bush are the same, a gap of 0.5mm is left between the spark plug, the guiding effect is achieved, and, for mounting and fixing the spark plug.
Description
Technical Field
The utility model mainly relates to the technical field of generating set, specifically a gas generating set spark plug bush leak protection oil device.
Background
The existing gas generator set is developed on the basis of the original fuel generator set, the ignition mode of the fuel generator set is compression ignition type, and work can be done only by injecting fuel into a combustion chamber for compression. The gas generator set is of an ignition type, and needs to deliver gas to a combustion chamber and simultaneously needs to be ignited by a spark plug. The installation of the spark plug needs to be fixed, oil cannot exist, and the installation environment needs to be dry and fireproof. A spark plug mounting bushing is then required. The spark plug mounting bushing plays a role in fixing the spark plug and preventing engine oil in the rocker arm chamber from entering. The existing spark plug meets the requirement of installing the spark plug by reworking a cylinder cover of an engine, reworking a rocker arm chamber and reworking a rocker arm chamber cover, and has the following problems: the processing difficulty is high, the processing precision requirement is high, and the cost is increased; the spark plug is inconvenient to replace and has high replacement difficulty; oil in the rocker chamber easily enters the spark plug.
SUMMERY OF THE UTILITY MODEL
In view of the not enough and defect that exists among the prior art, the utility model provides a gas generating set spark plug bush leak protection oil device.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a gas generating set spark plug bush leak protection oil device which characterized in that: the upper spark plug bush and the lower spark plug bush have the same inner diameter and leave a gap of 0.5mm with the spark plug to play a role in guiding, and an inner thread is reserved at the lower part of the lower spark plug bush to install and fix the spark plug.
As a further improvement, the gland nut bottom is equipped with first recess, and first recess is provided with first resistant oily rubber seal, prevents that the indoor machine oil of rocking arm from upwards splashing.
As a further improvement, the upper sparking plug bushing upper and lower portion of the compression platform is provided with a second groove, a second oil-resistant rubber sealing ring is arranged in the second groove, a sealing effect is achieved, and the interior engine oil of the rocker arm chamber can be effectively prevented from permeating into the cylinder cover and the contact surface of the upper sparking plug bushing.
As a further improvement, go up spark plug bush bottom, compress tightly the platform under the third recess, third resistant oil rubber seal has been put to the third recess, and the engine oil of the in-process seepage that third resistant oil rubber seal can effectual prevention installation spark plug bush continues down the seepage, plays duplicate protection's effect.
As a further improvement of the utility model, a positioning hole is arranged at the top of the rocker arm chamber cover.
As a further improvement of the utility model, the compressing device comprises a sealing ring and a threaded bolt.
Compared with the prior art, the utility model discloses the beneficial effect who has does: the lower spark plug bush is arranged in the cylinder cover and is compressed by the upper spark plug bush, the upper spark plug bush is arranged at the top of the cylinder cover and in the rocker arm chamber, the lower part of the spark plug bush is compressed by a compressing device through a compressing platform, and engine oil in the rocker arm chamber is prevented from permeating through two layers of sealing rings; the upper part of the spark plug bush is fastened by a compression nut, and engine oil in the rocker arm chamber is prevented from splashing upwards through a first oil-resistant rubber sealing ring. Thereby achieving the function of preventing oil leakage. The spark plug is fixed through the internal thread of spark plug bush lower part down, and it is convenient to dismantle the change.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments:
fig. 1 is a schematic structural view of an oil leakage preventing device for a spark plug bush of a gas generator set according to the present invention;
FIG. 2 is a schematic structural view of an upper spark plug bushing according to the present invention;
FIG. 3 is a schematic structural view of a lower spark plug bushing according to the present invention;
in the figure: the engine oil-resistant spark plug comprises a compression nut 1, a first oil-resistant rubber sealing ring 2, an upper spark plug bush 3, a second oil-resistant rubber sealing ring 4, a third oil-resistant rubber sealing ring 5, a lower spark plug bush 6, a spark plug 7, a compression device 8, a compression platform 9, a second groove 10, a third groove 11, a cylinder cover 12, engine oil 13, a rocker arm chamber 14, a rocker arm chamber cover 15, a first groove 16, an external thread 17 and an internal thread 18.
Detailed Description
In order to make the technical solution and the advantages of the present invention more clear and obvious, the present invention is further described in detail with reference to the following specific embodiments, it should be understood that the specific embodiments described herein are only used for understanding the present invention, and are not used for limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
Fig. 1 to 3 show a structural schematic diagram of an oil leakage preventing device for a spark plug bush of a gas generator set according to an embodiment of the present invention, which includes an upper spark plug bush 3, a lower spark plug bush 6, and a spark plug 7, wherein the lower spark plug bush 6 is installed in a cylinder head 12 and is compressed by the upper spark plug bush 3, the upper spark plug bush 3 is installed at the top of the cylinder head 12 and in a rocker arm chamber 14, a compression platform 9 is provided at the lower part of the upper spark plug bush 3, a compression device 8 is provided on the compression platform 9, the compression device 8 includes a seal ring and a threaded bolt, an external thread 17 is provided at the upper part of the upper spark plug bush 3, the compression nut 1 is connected with the external thread 17 at the upper part of the upper spark plug bush 3, the upper spark plug bush 3 is fixed on a rocker arm chamber cover 15 at the top of the rocker arm chamber 14, the internal diameters of the upper spark plug bush 3 and the, a gap of 0.5mm is reserved between the lower spark plug bush 6 and the spark plug 7 to play a role of guiding, and an internal thread 18 is reserved at the lower part of the lower spark plug bush 6 to be used for installing and fixing the spark plug 7.
A second groove 10 is formed in the upper spark plug bush 3 and the lower portion of the pressing platform 9, a second oil-resistant rubber sealing ring 4 is arranged in the second groove 10, when the pressing device 8 presses the upper spark plug bush 3 to the top of the cylinder cover 12 through the pressing platform 9, the second oil-resistant rubber sealing ring 4 is flattened to achieve a sealing effect, and engine oil in the rocker arm chamber 14 can be effectively prevented from permeating into the contact surface between the cylinder cover 12 and the upper spark plug bush 3.
The phi X size in the upper spark plug bush 3 is in over-win fit with a cylinder cover, the third groove 11 in the middle is used for mounting the third oil-resistant rubber sealing ring 5, and the third oil-resistant rubber sealing ring 5 can effectively prevent engine oil leaked in the process of mounting the upper spark plug bush 3 from continuously leaking downwards, so that the dual-protection effect is achieved. A gap of 0.5mm is left between phi Y in the upper spark plug bush 3 and the spark plug 7, and the phi Y plays a role in guiding when the spark plug 7 is installed.
The upper part of the upper spark plug bush 3 penetrates through a positioning hole of the rocker arm chamber cover to the outside of the rocker arm chamber cover, and the rocker arm chamber cover needs to be provided with the positioning hole in the process. The external thread 17 on the top of the upper spark plug bush 3 is used for installing the compression nut 1, and the first groove 16 is reserved at the bottom of the compression nut 1 and used for installing the first oil-resistant rubber sealing ring 2 to prevent the engine oil in the rocker arm chamber 14 from splashing upwards.
The h1 in the upper spark plug bush 3 is generally designed to be 10-15mm in size, so that the third oil-resistant rubber sealing ring 5 can be well installed, and the upper spark plug bush 3 can be fixed through the pressing platform 9 and the pressing device 8. Only the positioning hole at the top of the rocker arm chamber cover 15 is processed.
Phi Z in the lower spark plug bush 6 is the same as the diameter of the inner wall of the cylinder cover, a gap of 0.5mm is reserved between phi Y and the spark plug 7 according to the size design of the inner wall of the cylinder cover, and phi Y plays a role in guiding when the spark plug 7 is installed. The lower spark plug bush 6 has an internal thread 18 at its lower portion for mounting and fixing the spark plug 7.
The lower spark plug bush 6 is mounted in the cylinder head 12 and is compressed by the upper spark plug bush 3.
The lower part of the upper spark plug bush 3 is pressed by a pressing device 8 through a pressing platform 9 and is sealed through two layers of sealing rings, so that engine oil in the rocker arm chamber is prevented from permeating.
The upper part of the upper spark plug bush 3 is fastened by a compression nut 1, and engine oil in the rocker arm chamber is prevented from splashing upwards through a first oil-resistant rubber sealing ring 2. Thereby achieving the function of preventing oil leakage. The spark plug 7 is fixed through the internal thread 18 at the lower part of the lower spark plug bush 6, and is convenient to disassemble and replace.
It is noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (6)
1. The utility model provides a gas generating set spark plug bush leak protection oil device which characterized in that: the spark plug comprises an upper spark plug bush (3), a lower spark plug bush (6) and a spark plug (7), wherein the lower spark plug bush (6) is arranged in a cylinder cover (12) and is compressed through the upper spark plug bush (3), the upper spark plug bush (3) is arranged at the top of the cylinder cover (12) and in a rocker arm chamber (14), a compression platform (9) is arranged at the lower part of the upper spark plug bush (3), a compression device (8) is arranged on the compression platform (9), an external thread (17) is arranged at the upper part of the upper spark plug bush (3), a compression nut (1) is connected with the external thread (17) at the upper part of the upper spark plug bush (3), the upper spark plug bush (3) is fixed on a rocker arm chamber cover (15) at the top of the rocker arm chamber (14), the inner diameters of the upper spark plug bush (3) and the lower spark plug bush (6) are the same, and a gap of 0.5mm is reserved between the upper spark plug bush (, the lower part of the lower spark plug bush (6) is provided with an internal thread (18) for installing and fixing the spark plug (7).
2. The gas generating set spark plug bush oil leakage prevention device of claim 1, characterized in that: a first groove (16) is formed in the bottom of the compression nut (1), a first oil-resistant rubber sealing ring (2) is arranged in the first groove (16), and engine oil in the rocker arm chamber (14) is prevented from splashing upwards.
3. The gas generating set spark plug bush oil leakage prevention device of claim 1, characterized in that: a second groove (10) is formed in the upper portion of the upper spark plug bush (3) and the lower portion of the pressing platform (9), a second oil-resistant rubber sealing ring (4) is arranged in the second groove (10), a sealing effect is achieved, and engine oil in the rocker arm chamber (14) can be effectively prevented from permeating into the contact surface between the cylinder cover (12) and the upper spark plug bush (3).
4. The gas generating set spark plug bush oil leakage prevention device of claim 1, characterized in that: go up spark plug bush (3) bottom, compress tightly platform (9) lower part and be equipped with third recess (11), third resistant oil rubber seal (5) have been put in third recess (11), and third resistant oil rubber seal (5) can effectual prevention install the in-process seepage of spark plug bush (3) machine oil continue down the seepage, play duplicate protection's effect.
5. The gas generating set spark plug bush oil leakage prevention device of claim 1, characterized in that: the top of the rocker arm chamber cover (15) is provided with a positioning hole.
6. The gas generating set spark plug bush oil leakage prevention device of claim 1, characterized in that: the pressing device (8) comprises a sealing ring and a threaded bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020098362.XU CN210289990U (en) | 2020-01-17 | 2020-01-17 | Oil leakage prevention device for spark plug bushing of gas generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020098362.XU CN210289990U (en) | 2020-01-17 | 2020-01-17 | Oil leakage prevention device for spark plug bushing of gas generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210289990U true CN210289990U (en) | 2020-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020098362.XU Active CN210289990U (en) | 2020-01-17 | 2020-01-17 | Oil leakage prevention device for spark plug bushing of gas generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210289990U (en) |
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2020
- 2020-01-17 CN CN202020098362.XU patent/CN210289990U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A spark plug liner oil leakage prevention device for gas generator sets Effective date of registration: 20231110 Granted publication date: 20200410 Pledgee: China CITIC Bank Co.,Ltd. Weifang Branch Pledgor: SHANDONG SUPERMALY GENERATING EQUIPMENT CO.,LTD. Registration number: Y2023980065041 |