CN201687544U - Piston assembly of loose-core type oil pressure indicator - Google Patents
Piston assembly of loose-core type oil pressure indicator Download PDFInfo
- Publication number
- CN201687544U CN201687544U CN2010200001995U CN201020000199U CN201687544U CN 201687544 U CN201687544 U CN 201687544U CN 2010200001995 U CN2010200001995 U CN 2010200001995U CN 201020000199 U CN201020000199 U CN 201020000199U CN 201687544 U CN201687544 U CN 201687544U
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- China
- Prior art keywords
- piston
- spring
- oil pressure
- jacket
- pressure indicator
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a piston assembly of a loose-core type oil pressure indicator. The piston assembly comprises a hydraulic cylinder, an oil inlet pipe, a piston, a piston rod, a piston jacket, an indicating mechanism and a spring, wherein the upper surface of the piston is the plane, and the lower surface of the piston is provided with a groove; the lower end of the piston rod is provided with a blocking cap that is movably matched with the groove of the piston; the piston jacket is tightly sheathed outside the piston; the piston rod penetrates through a central hole of the piston, a central hole of a tray of the spring, a central of the spring and a central hole at the top of the hydraulic cylinder sequentially and then is connected with the indicating mechanism; and the lower end of the hydraulic cylinder is connected with the oil inlet pipe. The piston assembly has simple structure, low manufacturing and convenient processing and installing and ensures the axis concentricity of the axis of the piston and the hydraulic cylinder, so that the piston and the hydraulic cylinder are stressed uniformly when in operation, and the oil pressure data can be accurate, thereby prolonging the service life.
Description
Technical field
The utility model relates to a kind of engine oil pressure indicator piston assembly, specifically is a kind of dnockout core formula engine oil pressure indicator piston assembly.
Background technique
At present, general engine oil pressure indicator piston assembly, complex structure, its technology for processing and assembling is loaded down with trivial details, and the cost height is in the course of working; The axle center concentricity of piston axes and fluid power cylinder be difficult for to ensure, thereby resistance strengthens when causing the operation of piston and fluid power cylinder, and the engine oil pressure data are forbidden; A kind of engine oil pressure indicator piston assembly relatively simple for structure is arranged in market, but its working life is low, breaks down easily.
Summary of the invention
The utility model purpose is: in order to overcome the deficiency of above-mentioned two kinds of engine oil pressure indicator piston assemblies, a kind of dnockout core formula engine oil pressure indicator piston assembly is provided, it has simple in structure, processing, easy for installation, ensured the axle center concentricity of piston axes and fluid power cylinder, when making the operation of piston and fluid power cylinder stressed evenly, the engine oil pressure data are accurate, improved working life.
The technical solution of the utility model is achieved in that a kind of dnockout core formula engine oil pressure indicator piston assembly, comprise: the fluid power cylinder, oil inlet pipe, piston and piston rod, piston jacket, indicating device, spring, described piston upper surface is the plane, groove is set below the piston, piston-rod lower end is provided with the card cap, the groove of card cap and piston movingly, piston is tightly overlapping piston jacket outward, piston rod passes piston center hole from bottom to top successively, the spring tray center hole, the spring center hole, the top center hole of fluid power cylinder is connected with the indicating device of upper end, and the lower end of fluid power cylinder connects oil inlet pipe.
Describedly be arranged in the piston jacket and closely cooperate with piston jacket, described spring tray is the disk of flat top groove, and its groove matches with spring, and the flat and piston upper surface of spring tray joins.
Described card cap is flat round platform or oblate post or the hemisphere platform with the piston rod concentric shafts.
The utility model it have simple in structurely, cheap, and processing, easy for installation has ensured the axle center concentricity of piston axes and fluid power cylinder, and stressed even when making the operation of piston and fluid power cylinder, the engine oil pressure data are accurate, improved working life.
Description of drawings
Fig. 1 is the utility model structural representation.
Number description:
1, piston rod 2, fluid power cylinder 3, spring 4, piston jacket
5, spring tray 6, piston 7, oil inlet pipe 8, indicating device
101, card cap
Embodiment
Embodiment
A kind of dnockout core formula engine oil pressure indicator piston assembly, as shown in Figure 1, it comprises: fluid power cylinder 2, oil inlet pipe 7, piston 6 and piston rod 1, piston jacket 4, indicating device 8, spring 3, described piston 6 upper surfaces are the plane, below the piston 6 groove is set, piston rod 1 lower end is provided with card cap 101, the groove of card cap 101 and piston 6 movingly, the piston 6 outer piston jackets 4 that tightly overlapping, piston rod 1 passes piston 6 center holes from bottom to top successively, spring tray 5 center holes, spring 3 center holes, fluid power cylinder 2 top center holes are connected with the indicating device 8 of upper end, and fluid power cylinder 2 lower ends connect oil inlet pipe 7.
Described spring tray 5 is arranged in the piston jacket 4 and with piston jacket 4 and closely cooperates, and described spring tray 5 be the disk of flat top groove, and its groove matches with spring 3, and flat and piston 6 upper surfaces of spring tray 5 join.
Described card cap 101 is flat round platform or oblate post or the hemisphere platform with piston rod 1 concentric shafts.
Described piston rod 1, piston jacket 4, spring tray 5, fluid power cylinder 2 adopt the good high-quality steel of wear resistance; Spring 3 adopts the high-quality spring steel; Piston 6 adopts top-quality rubber, rubber and plastic or plastic materials.
Experimental results show that: the utlity model has simple in structurely, cheap, processing, easy for installation has ensured the axle center concentricity of piston axes and fluid power cylinder, and stressed even when making the operation of piston and fluid power cylinder, the engine oil pressure data are accurate, improved working life.
Claims (3)
1. dnockout core formula engine oil pressure indicator piston assembly, comprise: fluid power cylinder (2), oil inlet pipe (7), piston (6) and piston rod (1), piston jacket (4), indicating device (8), spring (3), it is characterized in that: described piston (6) upper surface is the plane, piston is provided with groove below (6), piston rod (1) lower end is provided with card cap (101), the groove of card cap (101) and piston (6) movingly, the outer piston jacket (4) that tightly overlapping of piston (6), piston rod (1) passes piston (6) center hole from bottom to top successively, spring tray (5) center hole, spring (3) center hole, fluid power cylinder (2) top center hole is connected with the indicating device (8) of upper end, and fluid power cylinder (2) lower end connects oil inlet pipe (7).
2. dnockout core formula engine oil pressure indicator piston assembly as claimed in claim 1, it is characterized in that: described spring tray (5) is arranged in the piston jacket (4) and with piston jacket (4) and closely cooperates, described spring tray (5) is the disk of flat top groove, its groove matches with spring (3), and flat and piston (6) upper surface of spring tray (5) joins.
3. dnockout core formula engine oil pressure indicator piston assembly as claimed in claim 1 is characterized in that: described card cap (101) for flat round platform or the oblate post or the hemisphere platform of piston rod (1) concentric shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200001995U CN201687544U (en) | 2010-01-08 | 2010-01-08 | Piston assembly of loose-core type oil pressure indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200001995U CN201687544U (en) | 2010-01-08 | 2010-01-08 | Piston assembly of loose-core type oil pressure indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687544U true CN201687544U (en) | 2010-12-29 |
Family
ID=43375829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200001995U Expired - Fee Related CN201687544U (en) | 2010-01-08 | 2010-01-08 | Piston assembly of loose-core type oil pressure indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901604A (en) * | 2012-10-26 | 2013-01-30 | 江苏智源科技创业园有限公司 | Pressure indicator |
| CN103867253A (en) * | 2014-03-31 | 2014-06-18 | 长城汽车股份有限公司 | Oil pressure sensor, oil pressure monitoring system and method and vehicle |
-
2010
- 2010-01-08 CN CN2010200001995U patent/CN201687544U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901604A (en) * | 2012-10-26 | 2013-01-30 | 江苏智源科技创业园有限公司 | Pressure indicator |
| CN103867253A (en) * | 2014-03-31 | 2014-06-18 | 长城汽车股份有限公司 | Oil pressure sensor, oil pressure monitoring system and method and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20180108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |