CN201474956U - Connecting structure of plunger and crossed head of metering pump - Google Patents
Connecting structure of plunger and crossed head of metering pump Download PDFInfo
- Publication number
- CN201474956U CN201474956U CN2009202029865U CN200920202986U CN201474956U CN 201474956 U CN201474956 U CN 201474956U CN 2009202029865 U CN2009202029865 U CN 2009202029865U CN 200920202986 U CN200920202986 U CN 200920202986U CN 201474956 U CN201474956 U CN 201474956U
- Authority
- CN
- China
- Prior art keywords
- plunger
- crosshead
- metering pump
- screw thread
- type nut
- 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
- 210000004907 gland Anatomy 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
A connecting structure of a plunger and a crossed head of a metering pump comprises a cover-type nut (1), a screw thread pressure sleeve (4), a plunger (5) and a crossed head (6), and is characterized in that the screw thread pressure sleeve (4) is mounted on the plunger (5), the end portion of the plunger (5) is provided with the cover-type nut (1), and a washer (7) is mounted between the cover-type nut (1) and the crossed head (6). The connecting structure has firm connection, eliminates the phenomenon of inclined center line generated by processing and assembly errors of screw threads on the plunger and the crossed head, has excellent centering property, is not easy to abrade a crossed head, and has an anti-clamping function.
Description
Technical field
The utility model relates to a kind of plunger of metering pump and the linkage structure of crosshead.
Background technique
Owing to process and assembly error, the screw connection structure at plunger and crosshead place is easy to generate the lack of alignment phenomenon at present, and bad to neutrality, crosshead is worn and torn easily, has reduced the life-span of crosshead.
The model utility content
The purpose of this utility model provides the linkage structure of a kind of wear-resistant plunger and crosshead.
A kind of plunger of metering pump and the linkage structure of crosshead comprise cover type nut, screw thread gland, plunger, crosshead, and the screw thread gland is installed on the described plunger, and the end of plunger is equipped with cover type nut, between cover type nut and the crosshead packing ring is installed.
On the described plunger bellows is installed.
Described screw thread gland is equipped with nut, and nut contacts with the end of crosshead.
Between described cover type nut and the plunger anaerobic adhesive is arranged.
Described cover type nut contacts with the screw thread gland.
The beneficial effects of the utility model are: the utility model connects fastening, has eliminated the screw thread at plunger and crosshead place because the lack of alignment phenomenon that processing and assembly error produce is good to neutrality, and crosshead is not easy wearing and tearing, and the anti-function that crushes is arranged.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural drawing of the present utility model.
Embodiment
As shown in Figure 1, the plunger of metering pump and the linkage structure of crosshead comprise cover type nut 1, anaerobic adhesive 2, nut 3, screw thread gland 4, plunger 5, crosshead 6, packing ring 7, bellows 8, bellows 8, screw thread gland 4 are packed into from the threaded end of plunger 5, nut is tightened to the bottom of screw thread gland 4 for 3 times, cover type nut 1 is screwed in plunger 5, packing ring 7 is packed in the crosshead 6, and mounted plunger 5 parts such as grade are packed in the crosshead 6 together.Cover type nut 1 closely contacts with screw thread gland 4, between cover type nut 1 and the plunger 5 anaerobic adhesive 2 is arranged.
Claims (5)
1. the linkage structure of the plunger of a metering pump and crosshead, comprise cover type nut (1), screw thread gland (4), plunger (5), crosshead (6), it is characterized in that: screw thread gland (4) is installed on the described plunger (5), the end of plunger (5) is equipped with cover type nut (1), between cover type nut (1) and the crosshead (6) packing ring (7) is installed.
2. according to the plunger of the described metering pump of claim 1 and the linkage structure of crosshead, it is characterized in that: bellows (8) is installed on the described plunger (5).
3. according to the plunger of the described metering pump of claim 1 and the linkage structure of crosshead, it is characterized in that: described screw thread gland (4) is equipped with nut (3), and nut (3) contacts with the end of crosshead (6).
4. according to the plunger of the described metering pump of claim 1 and the linkage structure of crosshead, it is characterized in that: between described cover type nut (1) and the plunger (5) anaerobic adhesive (2) is arranged.
5. according to the plunger of the described metering pump of claim 1 and the linkage structure of crosshead, it is characterized in that: described cover type nut (1) contacts with screw thread gland (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202029865U CN201474956U (en) | 2009-08-31 | 2009-08-31 | Connecting structure of plunger and crossed head of metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202029865U CN201474956U (en) | 2009-08-31 | 2009-08-31 | Connecting structure of plunger and crossed head of metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201474956U true CN201474956U (en) | 2010-05-19 |
Family
ID=42411202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202029865U Expired - Fee Related CN201474956U (en) | 2009-08-31 | 2009-08-31 | Connecting structure of plunger and crossed head of metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201474956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162883A (en) * | 2018-09-11 | 2019-01-08 | 上海水威环境技术股份有限公司 | A kind of three plunger water pump of super-pressure |
-
2009
- 2009-08-31 CN CN2009202029865U patent/CN201474956U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162883A (en) * | 2018-09-11 | 2019-01-08 | 上海水威环境技术股份有限公司 | A kind of three plunger water pump of super-pressure |
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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: 20100519 Termination date: 20110831 |