CN201615084U - Mechanical sealing piece for city flood-prevention and flood-drainage - Google Patents
Mechanical sealing piece for city flood-prevention and flood-drainage Download PDFInfo
- Publication number
- CN201615084U CN201615084U CN2009201988408U CN200920198840U CN201615084U CN 201615084 U CN201615084 U CN 201615084U CN 2009201988408 U CN2009201988408 U CN 2009201988408U CN 200920198840 U CN200920198840 U CN 200920198840U CN 201615084 U CN201615084 U CN 201615084U
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- ring
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- rotating
- spring seat
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a mechanical sealing piece, in particular to a mechanical sealing piece for city flood-prevention flood-drainage, aiming at solving the technical problem that the existing like products have poor sealing reliability. The design key point is in that a pump shaft and a spring seat are provided with a keyway; a first drive pin is arranged into the keyway to connect the spring seat and the pump shaft; the keyway is further internally provided with a clamping spring which pushes against the first drive pin; the spring seat is connected with a rotating seat in a sliding way through a fastening screw; a spring is arranged between the rotating seat and the spring seat; the rotating seat is fixedly connected with a moving ring through a second drive pin; second O-shaped seal rings are arranged between the spring seat and the moving ring as well as the pump shaft; one end of the moving ring is closely contacted with a stationary ring; and a first O-shaped seal ring is connected between the stationary ring and a stationary ring pressure cover. The mechanism sealing piece has compact structure, good sealing effect and high reliability, and impurities are not easy to enter the sealed cavity of the spring, thus being suitable for being taken as the structural improvement of similar mechanical sealing pieces.
Description
Technical field
The utility model relates to mechanical sealing element, is a kind of urban flood defence water drainage mechanical sealing element.
Background technique
The application area of mechanical sealing element is comparatively extensive, but its purpose plays effective seal exactly, applies in the pump housing as mechanical sealing element, can effectively prevent the leakage of various liquid or air-flow when pump work.The patent No. ZL200720106246.2 of Chinese patent literature publication, January 30 2008 notice of authorization day, the model utility name is called " universal machine Sealing ", the sealing part comprises that elastic support that is fastenedly connected by rotating ring, with rotating ring one end face and the helical spring that is wrapped in the elastic support periphery form moving ring assembly, form static components by stationary ring and its peripheral stationary ring cover, the inner ring surface that it is characterized in that elastic support is an indent annular corrugated pipe face, the middle axial plane fluid-tight engagement of the extended surface of bellows face and pump; Stationary ring overlaps establishes the prominent bar that is parallel to each other on the peripheral axial plane.Adopting bellows and extended surface thereof to make sealing surface can be according to the difference of setting height(from bottom), the setting height(from bottom) of regulating bellows satisfies the various pump class installation requirements of same diameter different heights, do not influencing under other universal component situation, select the elastic support different size to carry out wildcard, reach extensive general purpose.The seal ring of dynamic and static ring assembly can be selected the use that matches of the anticorrosive or anti abrasive seal ring of corresponding acid resistant alkali according to institute's Environmental Conditions.
The deficiency that above-mentioned Sealing exists is that helical spring is subjected to the damping interference of impurity easily, thereby influences helical spring effective push, causes the sealing effect between rotating ring and the stationary ring not good enough.
Summary of the invention
For overcoming above-mentioned deficiency, the purpose of this utility model is to provide a kind of urban flood defence water drainage mechanical sealing element to related domain, makes it solve the not good enough technical problem of sealing reliability of existing like product.Its objective is and be achieved through the following technical solutions.
A kind of urban flood defence water drainage mechanical sealing element, the sealing part comprises stationary ring, rotating ring, O-ring seals, pressing plate, seal end plate, rotating seat, spring, jump ring, driving pin, spring seat, wherein spring seat connects pump shaft by jump ring, first driving pin, pressing plate connects seal end plate by screw, spring seat connects rotating seat by fastening screw trip bolt, rotating seat connects rotating ring by second driving pin, is fixed with stationary ring between pressing plate and the seal end plate; It is characterized in that:
Described pump shaft and spring seat are provided with cotter way, connect spring seat and pump shaft by inserting first driving pin in the cotter way, also are provided with jump ring in the cotter way, and the jump ring and first driving pin offset.The purpose of first driving pin is to make that driving spring seat when pump shaft rotates rotates, and it is loosening that jump ring is difficult for the driving pin of winning.
Described spring seat is provided with spring by the fastening screw trip bolt rotating seat that is slidingly connected between rotating seat and the spring seat.Under the elastic force effect, rotating seat slides to the right, thereby rotating ring is closely contacted with stationary ring.
Described rotating seat is provided with the 2nd O RunddichtringO by the fixedly connected rotating ring of second driving pin between spring seat and rotating ring, the pump shaft.Second driving pin drives the rotating ring rotation when making the rotating seat rotation; The 2nd O RunddichtringO makes and seals between spring seat and rotating ring, the pump shaft, prevents that impurity from entering in the Seal cage at spring place.
Described rotating ring closely contacts with stationary ring, is provided with an O RunddichtringO between stationary ring and the seal end plate.Rotating ring closely contacts with stationary ring and produces sealing; The one O RunddichtringO makes and produces sealing between seal end plate and the stationary ring.
Described rotating ring is provided with metal rotating ring pad.Because rotating ring is a friable material, metal rotating ring pad is set makes rotating ring not fragile, increase working life.
The utility model compact structure, impurity are difficult for entering in the spring sealed chamber, good sealing effect, and the reliability height is suitable as the architecture advances of similar machines Sealing.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Above figure number and title: 1, seal end plate, 2, screw, 3, pressing plate, 4, an O RunddichtringO, 5, stationary ring, 6, fastening screw trip bolt, 7, spring, 8, rotating seat, 9, rotating ring, 10, metal rotating ring pad, the 11, the 2nd O RunddichtringO, 12, spring seat, 13, jump ring, 14, first driving pin, 15, second driving pin, 16, pump shaft.
Embodiment
Now in conjunction with the accompanying drawings, structure of the present utility model and principle are further described.
This urban flood defence water drainage mechanical sealing element comprises seal end plate, 1 screw 2, pressing plate 3, an O RunddichtringO 4, stationary ring 5, fastening screw trip bolt 6, spring 7, rotating seat 8, rotating ring 9, metal rotating ring pad 10, the 2nd O RunddichtringO 11, spring seat 12, jump ring 13, first driving pin 14, second driving pin 15.Spring seat is fixedlyed connected pump shaft 16 by first driving pin with jump ring, make spring seat rotate with pump shaft, and spring seat is provided with spring by the fastening screw trip bolt rotating seat that is slidingly connected between spring seat and rotating seat, and the rotating ring that the elastic force of spring makes closely contacts with stationary ring.Rotating seat is by the fixedly connected rotating ring of second driving pin; when pump shaft rotated, pump shaft drove spring seat, rotating seat, rotating ring rotation successively, because rotating seat is a friable material; so on rotating ring, be provided with metal rotating ring pad, the effect of playing protection and increasing the service life.Be provided with the 2nd O RunddichtringO between spring seat and rotating ring, pump shaft, make to produce sealing between spring seat and pump shaft, the rotating ring.Clamp connects seal end plate by screw, is equiped with stationary ring between clamp and seal end plate, is provided with an O type circle between stationary ring and the seal end plate, makes to produce sealing between seal end plate and the stationary ring.
When pump shaft rotates, pump shaft drives spring seat and rotating ring rotates, owing to be provided with spring between rotating seat and the spring seat, thus rotating ring under the elastic force effect, closely contact with stationary ring all the time, at this moment, if there is not the 2nd O RunddichtringO between spring seat and rotating ring, the pump shaft, then impurity holds and enters spring position very much, thereby damping spring makes spring that effective push can not be provided, thereby the sealing between rotating ring and the stationary ring is relatively poor, and shorten working life.In like manner, an O RunddichtringO is set between seal end plate and stationary ring, makes to produce sealing between seal end plate and the stationary ring, prevent that effectively impurity from entering in the Seal cage at spring place.So between spring seat and rotating ring, pump shaft, and between stationary ring and seal end plate, O-ring seals is set, make impurity be difficult for entering in the Seal cage at spring place, thereby guarantee that spring provides effective push, improved the reliability that seals between rotating ring and the stationary ring and the working life of this mechanical sealing element.
Claims (2)
1. urban flood defence water drainage mechanical sealing element, the sealing part comprises seal end plate (1), pressing plate (3), O-ring seals, stationary ring (5), spring (7), rotating seat (8), rotating ring (9), driving pin, spring seat (12), wherein spring seat connects pump shaft (16) by jump ring (13), first driving pin (14), pressing plate is by the fixedly connected seal end plate of screw (2), spring seat connects rotating seat by fastening screw trip bolt (6), rotating seat connects rotating ring by second driving pin (15), is provided with stationary ring between pressing plate and the seal end plate; It is characterized in that:
Described pump shaft (16) and spring seat (12) are provided with cotter way, connect spring seat and pump shaft by inserting first driving pin (14) in the cotter way, also are provided with jump ring (13) in the cotter way, and the jump ring and first driving pin offset;
Described spring seat (12) is provided with spring (7) by fastening screw trip bolt (6) rotating seat (8) that is slidingly connected between rotating seat and the spring seat;
Described rotating seat (8) is provided with second O-ring seals (11) by the fixedly connected rotating ring of second driving pin (15) (9) between spring seat (12) and rotating ring, the pump shaft (16);
Described rotating ring (9) closely contacts with stationary ring (5), is provided with first O-ring seals (4) between stationary ring and the seal end plate (1).
2. according to the described urban flood defence water drainage of claim 1 mechanical sealing element, it is characterized in that described rotating ring (9) is provided with metal rotating ring pad (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201988408U CN201615084U (en) | 2009-10-15 | 2009-10-15 | Mechanical sealing piece for city flood-prevention and flood-drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201988408U CN201615084U (en) | 2009-10-15 | 2009-10-15 | Mechanical sealing piece for city flood-prevention and flood-drainage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615084U true CN201615084U (en) | 2010-10-27 |
Family
ID=43001453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201988408U Expired - Fee Related CN201615084U (en) | 2009-10-15 | 2009-10-15 | Mechanical sealing piece for city flood-prevention and flood-drainage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615084U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748321A (en) * | 2012-07-19 | 2012-10-24 | 上海德宝密封件有限公司 | High-reliability bidirectional axial sealing device applicable for trash pump and having |
| CN110273843A (en) * | 2019-08-06 | 2019-09-24 | 亚太泵阀有限公司 | A kind of submersible pump independence oil pocket sealing structure |
-
2009
- 2009-10-15 CN CN2009201988408U patent/CN201615084U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748321A (en) * | 2012-07-19 | 2012-10-24 | 上海德宝密封件有限公司 | High-reliability bidirectional axial sealing device applicable for trash pump and having |
| CN110273843A (en) * | 2019-08-06 | 2019-09-24 | 亚太泵阀有限公司 | A kind of submersible pump independence oil pocket sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20121015 |