CN204413076U - A kind of vacuum-pumping tube structure of vacuum founding casting case - Google Patents
A kind of vacuum-pumping tube structure of vacuum founding casting case Download PDFInfo
- Publication number
- CN204413076U CN204413076U CN201420757158.9U CN201420757158U CN204413076U CN 204413076 U CN204413076 U CN 204413076U CN 201420757158 U CN201420757158 U CN 201420757158U CN 204413076 U CN204413076 U CN 204413076U
- Authority
- CN
- China
- Prior art keywords
- vacuum
- pumping tube
- big envelope
- tube body
- filter screen
- 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
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Abstract
The utility model is the vacuum-pumping tube structure of a kind of vacuum founding casting case, comprise vacuum-pumping tube body, at vacuum-pumping tube tubular body, annular plug is set, a big envelope is set in the front end of vacuum-pumping tube body, between big envelope and annular plug, filter screen structure is set, between filter screen structure and big envelope bottom vacuum-pumping tube body on a sand discharge road is set, described sand discharge road is arranged an inclined tube, the first filter mesh layer is set in described big envelope.Conveniently sand is discharged, and connects end for italic in the big envelope being located at vacuum-pumping tube body.The beneficial effects of the utility model: the utility model arranges a sand discharge road arranging under double filtration state on the vacuum-pumping tube body of bottom between filter screen structure and big envelope, the fine sand that filter screen structure and big envelope filter can be discharged from sand discharge road, avoid artificial clear husky tedious steps, improve service efficiency.
Description
Technical field
The utility model relates to a kind of vacuum-pumping tube, especially relates to the vacuum-pumping tube structure of a kind of vacuum founding casting case.
Background technology
At present, the vacuum-pumping tube structure of a kind of vacuum founding casting case is a siphunculus, uses middle siphunculus easily to cause sand to block and fine sand also easily causes evacuator to block.In order to address this problem; In siphunculus, filter mesh layer is set.And filter mesh layer after prolonged, siphunculus has fine sand to block in addition.
Utility model content
The purpose of this utility model is to provide the vacuum-pumping tube structure of a kind of vacuum founding casting case, solves the not susceptible to plugging problem of vacuum-pumping tube.
The utility model solves the technical scheme that its technical problem adopts: a kind of vacuum-pumping tube structure of vacuum founding casting case, comprise vacuum-pumping tube body, at vacuum-pumping tube tubular body, annular plug is set, a big envelope is set in the front end of vacuum-pumping tube body, between big envelope and annular plug, filter screen structure is set, between filter screen structure and big envelope bottom vacuum-pumping tube body on a sand discharge road is set, described sand discharge road is arranged an inclined tube, the first filter mesh layer is set in described big envelope.
Conveniently sand is discharged, and connects end for italic in the big envelope being located at vacuum-pumping tube body.
In order to filter fine sand efficiently, described filter screen structure comprises screen pack overcoat, arranges the second filter mesh layer in screen pack overcoat.
The beneficial effects of the utility model: the utility model arranges a sand discharge road arranging under double filtration state on the vacuum-pumping tube body of bottom between filter screen structure and big envelope, the fine sand that filter screen structure and big envelope filter can be discharged from sand discharge road, avoid artificial clear husky tedious steps, improve service efficiency.
Below with reference to drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is organigram of the present utility model.
Detailed description of the invention
Embodiment 1, as shown in Figure 1, a kind of vacuum-pumping tube structure of vacuum founding casting case, comprise vacuum-pumping tube body 1, in vacuum-pumping tube body 1 inside, annular plug 2 is set, a big envelope 3 is set in the front end of vacuum-pumping tube body 1, screen pack overcoat 4 is set between big envelope 3 and annular plug 2, second filter mesh layer 5 is set in screen pack overcoat 4, between filter screen structure and big envelope 3 bottom vacuum-pumping tube body 1 on a sand discharge road 6 is set, described sand discharge road 6 is arranged an inclined tube 7, the first filter mesh layer 8 is set in described big envelope 3.Conveniently sand is discharged, and connects end for italic in the big envelope 3 being located at vacuum-pumping tube body 1.The utility model arranges a sand discharge road arranging under double filtration state on the vacuum-pumping tube body of bottom between filter screen structure and big envelope, the fine sand that filter screen structure and big envelope filter can be discharged from sand discharge road, avoid artificial clear husky tedious steps, improve service efficiency.
The foregoing is only preferred embodiment of the present utility model, all equalization changes done according to the utility model right, all should belong to the covering scope of the utility model claim.
Claims (3)
1. the vacuum-pumping tube structure of a vacuum founding casting case, comprise vacuum-pumping tube body, at vacuum-pumping tube tubular body, annular plug is set, a big envelope is set in the front end of vacuum-pumping tube body, between big envelope and annular plug, filter screen structure is set, between filter screen structure and big envelope bottom vacuum-pumping tube body on a sand discharge road is set, described sand discharge road is arranged an inclined tube, the first filter mesh layer is set in described big envelope.
2. the vacuum-pumping tube structure of vacuum founding according to claim 1 casting case, is characterized in that: connect end for italic in the big envelope being located at vacuum-pumping tube body.
3. the vacuum-pumping tube structure of vacuum founding casting case according to claim 1, is characterized in that: described filter screen structure comprises screen pack overcoat, arranges the second filter mesh layer in screen pack overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757158.9U CN204413076U (en) | 2014-12-07 | 2014-12-07 | A kind of vacuum-pumping tube structure of vacuum founding casting case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757158.9U CN204413076U (en) | 2014-12-07 | 2014-12-07 | A kind of vacuum-pumping tube structure of vacuum founding casting case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204413076U true CN204413076U (en) | 2015-06-24 |
Family
ID=53463484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420757158.9U Expired - Fee Related CN204413076U (en) | 2014-12-07 | 2014-12-07 | A kind of vacuum-pumping tube structure of vacuum founding casting case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204413076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202025A (en) * | 2018-11-13 | 2019-01-15 | 黄山中发耐磨材料有限公司 | Arenaceous shell core pattern casting method |
-
2014
- 2014-12-07 CN CN201420757158.9U patent/CN204413076U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202025A (en) * | 2018-11-13 | 2019-01-15 | 黄山中发耐磨材料有限公司 | Arenaceous shell core pattern casting method |
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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: 20150624 Termination date: 20151207 |
|
| EXPY | Termination of patent right or utility model |