CN202606801U - Open type master-control hydraulic valve casting sand core - Google Patents
Open type master-control hydraulic valve casting sand core Download PDFInfo
- Publication number
- CN202606801U CN202606801U CN 201220124415 CN201220124415U CN202606801U CN 202606801 U CN202606801 U CN 202606801U CN 201220124415 CN201220124415 CN 201220124415 CN 201220124415 U CN201220124415 U CN 201220124415U CN 202606801 U CN202606801 U CN 202606801U
- Authority
- CN
- China
- Prior art keywords
- core
- hydraulic valve
- control hydraulic
- open type
- casting sand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to an open type master-control hydraulic valve casting sand core. The open type master-control hydraulic valve casting sand core comprises a main core and a plurality of sub cores. The open type master-control hydraulic valve casting sand core is characterized in that a hemispherical ball socket is arranged at a junction position of the surface of the main core and each sub core, the hemispherical ball sockets are different in diameter, and a hemispherical protrusion is arranged on the lower end surface of each sub core and can be just embedded in the corresponding ball socket. When the main core is connected with the sub cores, since the hemispherical ball sockets are different in diameter, and the hemispherical protrusions of the sub cores are different in diameter, occurrences of casting rejection caused by assembly errors of the sub cores are avoided.
Description
Technical field
The utility model relates to a kind of core, particularly a kind of open master control hydraulic valve foundry goods core.
Background technology
Open master control hydraulic valve foundry goods is widely used in the hydraulic control system of complicated walking engineering machinery, can constitute complicated oil circuit jointly with other valves, uses in fields such as oil, natural gas, chemical industry.Its flow passage structure is complicated, when making core, need assemble through main core and a plurality of secondary core; The secondary core of traditional main core box connects the employing positioning convex and locating slot carries out; Each locating slot and positioning convex consistent size connection error usually occurs when assembling, cause product rejection.
Summary of the invention
The technical problem that the utility model will solve provides a kind of high open master control hydraulic valve foundry goods core of accuracy that connects.
For solving the problems of the technologies described above; The technical scheme of the utility model is: a kind of open master control hydraulic valve foundry goods core; Comprise main core and some secondary cores; Its innovative point is: said main wicking surface is provided with the different hemispherical ball-and-socket of some diameters with the junction of each secondary core, and the lower surface of said secondary core is provided with the hemispherical projections that just can embed corresponding ball-and-socket.
The advantage of the utility model is: when main core was connected with each secondary core, its hemispherical ball-and-socket was different with the hemispherical projections diameter, can avoid secondary core assembling mistake to occur and cause foundry goods to scrap.
Description of drawings
Fig. 1 is the open master control hydraulic valve of a utility model foundry goods sand core structure sketch map.
The specific embodiment
As shown in Figure 1, draw together main core 1 and some secondary cores 2, main core 1 surface is provided with the different hemispherical ball-and-socket 3 of some diameters with the junction of each secondary core 2, and the lower surface of secondary core 2 is provided with the hemispherical projections 4 that just can embed corresponding ball-and-socket 3.
During connection, the ball-and-socket 3 of different-diameter is corresponding with corresponding hemispherical projections 4, avoids secondary core assembling wrong the scrapping of foundry goods of causing to occur.
Claims (1)
1. open master control hydraulic valve foundry goods core; Comprise main core and some secondary cores; It is characterized in that: said main wicking surface is provided with the different hemispherical ball-and-socket of some diameters with the junction of each secondary core, and the lower surface of said secondary core is provided with the hemispherical projections that just can embed corresponding ball-and-socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220124415 CN202606801U (en) | 2012-03-29 | 2012-03-29 | Open type master-control hydraulic valve casting sand core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220124415 CN202606801U (en) | 2012-03-29 | 2012-03-29 | Open type master-control hydraulic valve casting sand core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202606801U true CN202606801U (en) | 2012-12-19 |
Family
ID=47340533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220124415 Expired - Fee Related CN202606801U (en) | 2012-03-29 | 2012-03-29 | Open type master-control hydraulic valve casting sand core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202606801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357820A (en) * | 2013-05-02 | 2013-10-23 | 江苏泰普电力设备有限公司 | 25T high-pressure multi-path valve body casting core assembling structure |
| CN110386032A (en) * | 2018-04-16 | 2019-10-29 | 本田技研工业株式会社 | The refrigerating device of accumulator of electric vehicle |
-
2012
- 2012-03-29 CN CN 201220124415 patent/CN202606801U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357820A (en) * | 2013-05-02 | 2013-10-23 | 江苏泰普电力设备有限公司 | 25T high-pressure multi-path valve body casting core assembling structure |
| CN103357820B (en) * | 2013-05-02 | 2015-08-26 | 江苏泰普电力设备有限公司 | A kind of 25T high-pressure multi-path valve body moulding core structure |
| CN110386032A (en) * | 2018-04-16 | 2019-10-29 | 本田技研工业株式会社 | The refrigerating device of accumulator of electric vehicle |
| CN110386032B (en) * | 2018-04-16 | 2023-05-23 | 本田技研工业株式会社 | Battery cooling device for electric 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: 20121219 Termination date: 20190329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |