CN2621214Y - Anti-theft packing box for pumping well - Google Patents
Anti-theft packing box for pumping well Download PDFInfo
- Publication number
- CN2621214Y CN2621214Y CN 03251097 CN03251097U CN2621214Y CN 2621214 Y CN2621214 Y CN 2621214Y CN 03251097 CN03251097 CN 03251097 CN 03251097 U CN03251097 U CN 03251097U CN 2621214 Y CN2621214 Y CN 2621214Y
- Authority
- CN
- China
- Prior art keywords
- packing box
- outer cover
- retaining pin
- pressure cap
- utility
- 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 discloses a pumping well theft proof packing box. The utility model comprises a pressing cap and a packing box. An inner cover is welded on the pressing cap, a spring and a retaining pin are mounted at the bottom of the inner cover, an outer cover is welded on the packing box, a retaining step arc is mounted on an inner wall of the outer cover, and a retaining pin exit is opened at the bottom of the outer cover. The utility model is characterized in a simple structure, a good anti-theft performance and a convenient operation.
Description
The utility model relates to a kind of pumpingh well packing box, belongs to the sealing device of pumpingh well well head.
The on-the-spot packing box structure of using of oil field pumping well is divided into body and pressure cap two parts at present, and body is connected on the well head, and pressure cap is spun on the body by screw thread.During use, in body, add the filler packing, in the running, press cap extruding filler about the pumpingh well polished rod according to the degree of wear dextrorotation of filler packing, seal up the polished rod of reciprocating cutter and the annular space between the packing box body, reach the purpose that prevents that oil gas from leaking.Pressure cap is connected in the screw thread mode with the packing box body, and the lawless person only needs to use general tool therefore to use this packing box by counterclockwise after the rotation pressure cap easily being laid down in order to reach the purpose of stealing oil, and the lawless person steals oil and is easy to succeed.
The purpose of this utility model just provides the antitheft packing box of a kind of pumpingh well, and it can effectively prevent the behavior of lawless person's key oil.
The purpose of this utility model is achieved in that the antitheft packing box of pumpingh well is made up of pressure cap, packing box, on pressure cap, be welded with inner cover, the bottom of inner cover is provided with spring and retaining pin, on the body of packing box, be welded with outer cover, the inwall of outer cover is provided with retaining step arc, and the bottom of outer cover has the retaining pin outlet.
The utility model is by welding inner cover and outer cover respectively on pressure cap and packing box body, have only when packing is used up, pressure cap could be unloaded from the packing box body, thereby make the lawless person can not steal oil, have simple in structure, theftproof performance good, easy to operate advantage.
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1: the utility model structural representation; Fig. 2: outer cover sectional view;
The antitheft packing box of pumpingh well is that design has reverse fixation preventing device between pressure cap and packing box body, neutralizes the opposite spin of cap when the unexhausted time limit of filler packing.Its structure as shown in Figure 1, it is made up of pressure cap 1, packing box 8, on pressure cap 1, be welded with inner cover 2, the bottom of inner cover 2 is provided with spring 5 and retaining pin 4, spring 5 withstands on the retaining pin 4, is welded with outer cover 3 on packing box 8, and the inwall of outer cover 3 is provided with retaining step arc 9, the bottom of outer cover 3 has retaining pin outlet 6, and outer cover as shown in Figure 2.
During operate as normal, retaining pin 4 is withstanding under the effect that holds out against spring 5 on the inwall of outer cover 2, and retaining pin 4 can only reach the purpose of extruding packing 7, sealing oil gas with pressure cap 1 and the rotation of inner cover 2 clockwise directions; Unexhausted when filler packing 7, when opposite spin pressure cap 1 and inner cover 2, retaining pin 4 has been stuck on the retaining step arc 9 of outer cover under the effect that holds out against spring 5, causes to steal oil by the opposite spin pressure cap, has prevented the generation of stolen incident.When filler packing 7 was used up, retaining pin 4 just withdrawed from mouth 6 from retaining pin and withdraws under the effect that holds out against spring 5, and at this moment, pressure cap 1 could opposite spin be dismantled the filler packing 7 that more renews.
Claims (1)
1, the antitheft packing box of a kind of pumpingh well is made up of pressure cap (1), packing box (8), it is characterized in that: on pressure cap (1), be welded with inner cover (2), the bottom of inner cover (2) is provided with spring (5) and retaining pin (4), spring (5) withstands on the retaining pin (4), on packing box (8), be welded with outer cover (3), the inwall of outer cover (3) is provided with retaining step arc (9), and the bottom of outer cover (9) has retaining pin outlet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03251097 CN2621214Y (en) | 2003-05-08 | 2003-05-08 | Anti-theft packing box for pumping well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03251097 CN2621214Y (en) | 2003-05-08 | 2003-05-08 | Anti-theft packing box for pumping well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2621214Y true CN2621214Y (en) | 2004-06-23 |
Family
ID=34253016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03251097 Expired - Fee Related CN2621214Y (en) | 2003-05-08 | 2003-05-08 | Anti-theft packing box for pumping well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2621214Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054892B (en) * | 2007-05-30 | 2011-06-22 | 周宏强 | Inversion-proof packing box for oil extraction well port |
-
2003
- 2003-05-08 CN CN 03251097 patent/CN2621214Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054892B (en) * | 2007-05-30 | 2011-06-22 | 周宏强 | Inversion-proof packing box for oil extraction well port |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |