CN2826032Y - Drainage valve structure for pump - Google Patents
Drainage valve structure for pump Download PDFInfo
- Publication number
- CN2826032Y CN2826032Y CN 200520104808 CN200520104808U CN2826032Y CN 2826032 Y CN2826032 Y CN 2826032Y CN 200520104808 CN200520104808 CN 200520104808 CN 200520104808 U CN200520104808 U CN 200520104808U CN 2826032 Y CN2826032 Y CN 2826032Y
- Authority
- CN
- China
- Prior art keywords
- pump
- drain
- water
- screwed
- screw
- 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 - Lifetime
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a drainage structure for a water pump, which belongs to the manufacturing field of drain valves for pumps. The lateral part of a pump casing is provided with a weld nut, an O-shaped sealing ring is sheathed a discharge screw plug which is sealed and screwed in the weld nut through the O-shaped sealing ring, and an inner screw block is screwed in the discharge screw plug and can be tightened, loosened and screwed off. The utility model has the advantages that the pump can drain the ponded water in the pump body in time as required no matter why the pump is stopped, and the utility model can fundamentally solve the damage phenomenon of the pump body because the ponded water in the pump body can not drain in the background art especially in cold winter.
Description
Technical field:
The utility model relates to a kind of water pump discharge structure, belongs to pump and makes the field with drain valve.
Background technique:
Existing vertical multi-stage water pump, on structural design, the water-inlet cavity of the pump housing does not all have discharge structure.Its deficiency: water pump moves under the environment that the weather is cold and the ground is frozen, and when water pump occurred shutting down phenomenon owing to normal reason or improper reason, if untimely water in the pump housing is drained, the water in the water pump will freezing and expansion, damages the pump housing inevitably.
Summary of the invention:
Purpose of design: avoid the deficiency in the background technique, design a kind ofly when pump quits work, can in time discharge the ponding in the water pump water-in and water-out chamber easily.
Design proposal: in order to realize above-mentioned purpose of design, on structural design, have drain opening on the water-inlet cavity wall of pump case, this drain opening is relative with the weep hole of drain screw on being arranged in pump case water chamber wall, communicate, be rotary with interior screw plug in the drain screw, interior screw plug plays switch for the drain opening on the pump case water-inlet cavity wall, when the needs draining, unscrew or spin off interior screw plug, the water in water cavity is discharged to outside the pump along drain opening and drain screw; When not needing draining, interior screw plug is tightened in the drain screw, and plug screw head seals the drain opening on the water-inlet cavity wall in it.Drain screw spins by the sealing of O RunddichtringO with the welded nut that is weldingly fixed on the pump case water exit end wall, oozes out to prevent water.The waterexit end of drain screw is designed to groove structure, and purpose is provided with the O RunddichtringO within it, and this O RunddichtringO forms sealing with the face of interior screw plug and contacts, and oozes out with waterproof.Its technological scheme: pump drain valve structure, the pump case sidepiece is provided with welded nut (3), O RunddichtringO (4) is enclosed within on the drain screw (5) and drain screw (5) is screwed in the welded nut (3) by the sealing of O RunddichtringO, and interior screw plug (6) is screwed in the drain screw and can screws, unscrew, spin off.
The utility model is compared with background technique; which kind of reason no matter pump run into is shut down, and all the ponding in the pump housing is drained during the utmost point as required, particularly in winter of cold; can fundamentally solve that background technique exists because the interior ponding of the pump housing can't be drained, and the pump housing that causes damage phenomenon.
Description of drawings:
Fig. 1 is the partial structurtes schematic representation of pump with drain valve structure.
Fig. 2 is the broken section structural representation of pump with drain valve structure.
Embodiment:
Embodiment 1: with reference to attached Fig. 1 and 2.The pump drain valve structure, the pump case sidepiece is provided with welded nut 3, that is to say, and nut 3 seal weldings are at the pump case sidepiece.O RunddichtringO 4 is enclosed within on the drain screw 5, drain screw 5 adopts prior art processing and fabricating and drain screw 5 to be screwed in the welded nut 3 by the sealing of O RunddichtringO, interior screw plug 6 is screwed in the drain screw and can screws and (is equivalent to close water tap, play sealing), unscrew and (be equivalent to water tap and opened a part, play slow draining), spin off (be equivalent to fetch boiling water fully tap, play quick draining).Drain opening is sealing contact (being equivalent to water tap closes) on the tapered and pump case water-inlet cavity wall of interior screw plug 6 heads.Drain screw 5 waterexit ends are groove and stud with O RunddichtringO 1 in grooves, and purpose is to form sealing with interior screw plug wall to contact, and oozes out with waterproof.
What need understand is: though the foregoing description is to the utility model detailed explanation of contrasting; but these explanations are just illustrative to the utility model; rather than to restriction of the present utility model; any innovation and creation that do not exceed in the utility model connotation all fall in the protection domain of the present utility model.
Claims (3)
1, a kind of pump drain valve structure, it is characterized in that: the pump case sidepiece is provided with welded nut (3), O RunddichtringO (4) is enclosed within on the drain screw (5) and drain screw (5) is screwed in the welded nut (3) by the sealing of O RunddichtringO, and interior screw plug (6) is screwed in the drain screw and can screws, unscrew, spin off.
2, pump drain valve structure according to claim 1 is characterized in that: interior screw plug (6) head tapered and with pump case water-inlet cavity wall on drain opening be the sealing contact.
3, pump drain valve structure according to claim 1 is characterized in that: drain screw (5) waterexit end is groove and studs with O RunddichtringO (1) in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520104808 CN2826032Y (en) | 2005-08-10 | 2005-08-10 | Drainage valve structure for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520104808 CN2826032Y (en) | 2005-08-10 | 2005-08-10 | Drainage valve structure for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2826032Y true CN2826032Y (en) | 2006-10-11 |
Family
ID=37066215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520104808 Expired - Lifetime CN2826032Y (en) | 2005-08-10 | 2005-08-10 | Drainage valve structure for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2826032Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278304A (en) * | 2010-06-10 | 2011-12-14 | 镇江江大泵业科技有限公司 | Water drainage device for long-axial pump for ship |
| CN105626875A (en) * | 2014-10-28 | 2016-06-01 | 中航通飞研究院有限公司 | Drain valve for watertight compartment of water take-off and landing plane |
| CN113565658A (en) * | 2021-07-22 | 2021-10-29 | 徐工集团工程机械股份有限公司道路机械分公司 | Oil tank capable of reducing water content of fuel oil and engineering machinery |
| EP4239203A1 (en) | 2022-03-03 | 2023-09-06 | Husqvarna AB | Pump assembly comprising a drain plug |
-
2005
- 2005-08-10 CN CN 200520104808 patent/CN2826032Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278304A (en) * | 2010-06-10 | 2011-12-14 | 镇江江大泵业科技有限公司 | Water drainage device for long-axial pump for ship |
| CN105626875A (en) * | 2014-10-28 | 2016-06-01 | 中航通飞研究院有限公司 | Drain valve for watertight compartment of water take-off and landing plane |
| CN105626875B (en) * | 2014-10-28 | 2018-07-03 | 中航通飞研究院有限公司 | Water takeoff and landing aircraft watertight compartment drain valve |
| CN113565658A (en) * | 2021-07-22 | 2021-10-29 | 徐工集团工程机械股份有限公司道路机械分公司 | Oil tank capable of reducing water content of fuel oil and engineering machinery |
| EP4239203A1 (en) | 2022-03-03 | 2023-09-06 | Husqvarna AB | Pump assembly comprising a drain plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091218 Address after: Renhe District, Renhe Town, Yuhang District, Zhejiang, Hangzhou Province, China: 311107 Patentee after: Hangzhou Nanfang Special Pump Industry Co., Ltd. Address before: Renhe Town, Yuhang District, Zhejiang City, Hangzhou Province, China: 311107 Patentee before: Nanfang Specific Pump Industry Co., Ltd., Hangzhou |
|
| ASS | Succession or assignment of patent right |
Owner name: NANFANG PUMP INDUSTRY CO., LTD. Free format text: FORMER OWNER: HANGZHOU NANFANG SPECIAL PUMP INDUSTRY CO., LTD. Effective date: 20110615 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110615 Address after: 311107 Renhe District, Renhe Town, Yuhang District, Zhejiang, Hangzhou Patentee after: Nanfang Pump Industry Co.,Ltd. Address before: 311107 Renhe District, Renhe Town, Yuhang District, Zhejiang, Hangzhou Patentee before: Hangzhou Nanfang Special Pump Industry Co., Ltd. |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150810 Granted publication date: 20061011 |
|
| EXPY | Termination of patent right or utility model |