CN204253577U - A kind of central shaft - Google Patents
A kind of central shaft Download PDFInfo
- Publication number
- CN204253577U CN204253577U CN201420669851.0U CN201420669851U CN204253577U CN 204253577 U CN204253577 U CN 204253577U CN 201420669851 U CN201420669851 U CN 201420669851U CN 204253577 U CN204253577 U CN 204253577U
- Authority
- CN
- China
- Prior art keywords
- hole
- main body
- axle main
- axis
- arc surface
- 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.)
- Withdrawn - After Issue
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
A kind of central shaft, it is for membrane pump with pneumatic drive, comprise axle main body, an end face center of described axle main body is initial is provided with a hole concentric with shaft axis along direction of axis line to setpoint distance, and described bore end place is provided with and multiplely extends to the vertical with shaft axis of opposite arc surface and hole that is circle distribution centered by shaft axis from axle main body arc surface to direction of axis line; An end face of described axle main body is initial is arranged with the hole of two different depths with shaft axis and the end in hole is respectively equipped with the hole of vertical connection to axle main body arc surface with axis parallel.The utility model axle main body is provided with multiple pore, plays the commutation of feedback pressurized air, without the need to separately joining complicated air inlet commutation assembly, easy to use, maintenance cost is low.
Description
Technical field
The utility model relates to a kind of axle, more precisely a kind of central shaft for membrane pump with pneumatic drive.
Background technique
The central shaft that the membrane pump with pneumatic drive of present stage adopts only plays the effect being connected and fixed diaphragm, need with the use of the air inlet commutation assembly of complexity, and accessory is many, fragile, maintenance cost is high.
Summary of the invention
Due to the above-mentioned shortcoming of prior art, the utility model provides a kind of central shaft, and it can effectively solve the problem.
The utility model solves the problems of the technologies described above adopted technological scheme and is to provide a kind of central shaft, it is for membrane pump with pneumatic drive, comprise axle main body, an end face center of described axle main body is initial is provided with a hole concentric with shaft axis along direction of axis line to setpoint distance, and described bore end place is provided with and multiplely extends to the vertical with shaft axis of opposite arc surface and hole that is circle distribution centered by shaft axis from axle main body arc surface to direction of axis line; An end face of described axle main body is initial is arranged with the hole of two different depths with shaft axis and the end in hole is respectively equipped with the hole of vertical connection to axle main body arc surface with axis parallel.
The other end of described axle main body is provided with outside thread.
The utility model has the advantages that: a kind of central shaft that the utility model provides, axle main body is provided with multiple pore, pressurized air can be fed back and commutate, without the need to separately joining complicated air inlet commutation assembly, easy to use, maintenance cost is low.
Accompanying drawing explanation
Fig. 1 is shape assumption diagram of the present utility model.
Fig. 2 is the sectional view of Fig. 1.
Embodiment
Embodiment of the present utility model is set forth further below in conjunction with accompanying drawing:
As shown in Figure 1, 2, a kind of central shaft that the utility model provides, it is for membrane pump with pneumatic drive, comprise axle main body 1, end face 11 center of described axle main body 1 is initial is provided with a hole 3 concentric with shaft axis along direction of axis line to setpoint distance, tail end, described hole 3 is provided with and multiplely extends to the vertical with shaft axis of opposite arc surface and hole 10 that is circle distribution centered by shaft axis from axle main body 1 arc surface to direction of axis line, and described hole 3 is communicated with hole 10; An end face 11 of described axle main body 1 is initial is arranged with the hole 5 of two different depths and hole 8 with axis parallel and with shaft axis and the end in hole 5 and hole 8 is respectively equipped with vertical connection to the hole 6 of axle main body arc surface and hole 9, and described hole 6 and hole 9 are provided with hole 4 and hole 7 along shaft axis to end face 11 offset direction; The centerline in described hole 3, hole 4, hole 5, hole 6, hole 7, hole 8, hole 9 is in same plane.
The other end of described axle main body 1 is provided with outside thread 2.
A kind of central shaft that the utility model provides, after axle main body is provided with hole 4, hole 5, hole 6, hole 7, hole 8, hole 9, pressurized air directly can feed back commutation, without the need to separately joining complicated air inlet commutation assembly, easy to use, maintenance cost is low.
The foregoing is only preferred embodiments of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a central shaft, it is for membrane pump with pneumatic drive, it is characterized in that, comprise axle main body (1), end face (11) center of described axle main body (1) is initial is provided with a hole (3) concentric with shaft axis along direction of axis line to setpoint distance, and described hole (3) tail end is provided with and multiplely extends to the vertical with shaft axis of opposite arc surface and hole that is circle distribution centered by shaft axis (10) from axle main body (1) arc surface to direction of axis line; An end face (11) of described axle main body (1) is initial is arranged with the hole (5) of two different depths and hole (8) with axis parallel and with shaft axis and the end of hole (5) and hole (8) is respectively equipped with vertical connection to the hole (6) of axle main body arc surface and hole (9).
2. central shaft according to claim 1, is characterized in that, the other end of described axle main body (1) is provided with outside thread (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669851.0U CN204253577U (en) | 2014-11-10 | 2014-11-10 | A kind of central shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669851.0U CN204253577U (en) | 2014-11-10 | 2014-11-10 | A kind of central shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253577U true CN204253577U (en) | 2015-04-08 |
Family
ID=52957890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420669851.0U Withdrawn - After Issue CN204253577U (en) | 2014-11-10 | 2014-11-10 | A kind of central shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847778A (en) * | 2014-11-10 | 2015-08-19 | 上海方顿工业设备有限公司 | Central shaft |
-
2014
- 2014-11-10 CN CN201420669851.0U patent/CN204253577U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847778A (en) * | 2014-11-10 | 2015-08-19 | 上海方顿工业设备有限公司 | Central shaft |
| CN104847778B (en) * | 2014-11-10 | 2018-01-02 | 上海方顿工业设备有限公司 | A kind of central shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150408 Effective date of abandoning: 20180102 |
|
| AV01 | Patent right actively abandoned |