CN205117270U - Multi -functional packing box pressure cap - Google Patents
Multi -functional packing box pressure cap Download PDFInfo
- Publication number
- CN205117270U CN205117270U CN201520841598.7U CN201520841598U CN205117270U CN 205117270 U CN205117270 U CN 205117270U CN 201520841598 U CN201520841598 U CN 201520841598U CN 205117270 U CN205117270 U CN 205117270U
- Authority
- CN
- China
- Prior art keywords
- upper jacket
- pressing cap
- packing box
- screw rod
- described upper
- 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 relates to a multi -functional packing box pressure cap, characterized in that, cup joint the cap that pushes down of polished rod including the middle part, the upper portion fixed mounting that pushes down the cap goes up the sheath, the middle section both sides of going up the sheath are equipped with the screw rod that is used for pouring into into lubricating oil to its inside lubricating oil chamber inside going up the sheath, the lubricating oil chamber inner wall that is located both sides screw rod lower part is equipped with the round and keeps off the ring the upper portion that keeps off the ring install with lubricating oil chamber's inner wall laminating sponge packing ring together. The utility model has the advantages of reasonable design it is simple and direct, operate safe and reliable, can realize that the phenomenon of preventing oil spout and leak protection oil takes place, improved the security and the practicality of whole equipment greatly.
Description
Technical field
The utility model relates to a kind of sealed multi-functional packing box pressing cap, belongs to petroleum machinery technical field of structures.
Background technology
At present, well head generally uses packing box, it mainly adopts interpolation rubber packing to realize sealing, theoretical seal intensity is generally 5-8 MPa, but because some oil wells interval is fuel-displaced, thus cause polished rod there is no grease lubrication, exacerbate packing to damage, thus cause sealing intensity step-down, easily cause well head leakage of oil, and some oil wells is due to water injection well string, pressure increase is fast, exceeded packing box pressure-bearing scope, but outstanding polished rod is arranged at top, sealing cannot be realized, easily cause blowout out of control.
Therefore, a kind of safer packing box of development is needed badly.
Summary of the invention
The utility model is intended to solve the technological deficiency that prior art exists, so provide a kind of scientific structure design rationally, be easy to assemble, improve packing overall tightness thus realize the sealed multi-functional packing box pressing cap of blowout prevention leakproof.
For solving the problem, the technical scheme that the utility model adopts is:
A kind of sealed multi-functional packing box pressing cap, its special character is, comprise the lower pressing cap 2 that middle part is socketed with polished rod 1, the top of described lower pressing cap 2 is installed with the upper jacket 4 that inside has lubricant reservoir 3, the both sides, stage casing of described upper jacket 4 are provided with the screw rod 5 for injecting lubrication oil to described upper jacket 4 internal lubrication oil pocket 3, described screw rod 5 realizes sealing thread by the both sides of screw thread and described upper jacket 4 and spins, inner at described upper jacket 4, lubricant reservoir 3 inwall being positioned at both sides screw rod 5 bottom is provided with a circle baffle ring 7, the sponge washer 6 fit together with the inwall of described lubricant reservoir 3 is installed on the top of described baffle ring 7, the top of described upper jacket 4 is provided with the screw thread end 8 for spinning mutually with external oil pipe,
In order to realize sealing further, improve safety and prevent the generation of the phenomenons such as blowout, the top of described upper jacket 4 is circumscribed with tubing nipple 9 by screw thread end 8;
Spun by thread seal to be fixed together between the upper jacket 4 on described lower pressing cap 2 and its top.
A kind of sealed multi-functional packing box pressing cap of the utility model, add the sealing intensity of packing box entirety, simultaneously, lubricant reservoir is equipped with at the joint with polished rod, can effectively prevent that the packing that causes damages because polished rod lacks lubrication by charging-up lubricant oil and the technological deficiency such as poor sealing, reasonable in design of the present utility model is simple and direct, operates safe and reliable, the phenomenon that can realize anti-spraying oil and oil-leakage-prevention occurs, and substantially increases safety and the practicality of integral device.
Accompanying drawing explanation
Fig. 1: a kind of sealed multi-functional packing box pressing cap of the utility model structural representation;
In the drawings, 1, polished rod, 2, lower pressing cap, 3, lubricant reservoir, 4, upper jacket, 5, screw rod, 6, sponge washer, 7, baffle ring, 8, screw thread end, 9, tubing nipple.
Detailed description of the invention
Be described in detail below with regard to a kind of sealed multi-functional packing box pressing cap of accompanying drawing 1 pair of the utility model below.
Embodiment 1
The Multifunctional oil-well packing box pressing cap of the present embodiment, comprise the lower pressing cap 2 that middle part is socketed with polished rod 1, the top of described lower pressing cap 2 is installed with the upper jacket 4 that inside has lubricant reservoir 3, the both sides, stage casing of described upper jacket 4 are provided with the screw rod 5 for injecting lubrication oil to described upper jacket 4 internal lubrication oil pocket 3, described screw rod 5 realizes sealing thread by the both sides of screw thread and described upper jacket 4 and spins, inner at described upper jacket 4, lubricant reservoir 3 inwall being positioned at both sides screw rod 5 bottom is provided with a circle baffle ring 7, the sponge washer 6 fit together with the inwall of described lubricant reservoir 3 is installed on the top of described baffle ring 7, the top of described upper jacket 4 is provided with the screw thread end 8 for spinning mutually with external oil pipe, in order to realize sealing further, improve safety and prevent the generation of the phenomenons such as blowout, the top of described upper jacket 4 is circumscribed with tubing nipple 9 by screw thread end 8, spun by thread seal to be fixed together between the upper jacket 4 on described lower pressing cap 2 and its top.
The Multifunctional oil-well packing box pressing cap of the present embodiment, it is installed and used process and is described below:
After installing packing box, both sides screw rod 5 is screwed out, lubricating grease is injected in lubricant reservoir 3, then sponge washer 6 is put into from polished rod 1 upper end, sponge washer 6 is fixed by baffle ring 7 below, baffle ring 7 stops that sponge washer 6 drops, sponge washer 6 mainly prevents dust and foreign material from dropping in lubricant reservoir 3, it is too fast that next prevents lubrication oil from volatilizing, both sides screw rod 5 is sealed by screwed connection with the upper jacket 4 on lower pressing cap 2 top, mainly packing box pressing cap can be fixed on polished rod 1 when changing packing, prevent pressure cap from dropping and injure finger by a crashing object, secondly upper jacket 4 top on lower pressing cap 2 top is pin end, when oil well pressure exceedes packing box bearing strength, can the tubing nipple 9 of band box be installed to the pipe of packing box pressing cap top from top, thus realize sealing, prevent the generation of the phenomenons such as blowout, improve safety.
Claims (3)
1. a sealed multi-functional packing box pressing cap, it is characterized in that, comprise the lower pressing cap (2) that middle part is socketed with polished rod (1), the top of described lower pressing cap (2) is installed with the upper jacket (4) that inside has lubricant reservoir (3), the both sides, stage casing of described upper jacket (4) are provided with the screw rod (5) for injecting lubrication oil to described upper jacket (4) internal lubrication oil pocket (3), described screw rod (5) realizes sealing thread by the both sides of screw thread and described upper jacket (4) and spins, inner at described upper jacket (4), lubricant reservoir (3) inwall being positioned at both sides screw rod (5) bottom is provided with a circle baffle ring (7), the sponge washer (6) fit together with the inwall of described lubricant reservoir (3) is installed on the top of described baffle ring (7), the top of described upper jacket (4) is provided with the screw thread end (8) for spinning mutually with external oil pipe.
2. a kind of sealed multi-functional packing box pressing cap as claimed in claim 1, it is characterized in that, the top of described upper jacket (4) is circumscribed with tubing nipple (9) by screw thread end (8).
3. a kind of sealed multi-functional packing box pressing cap as claimed in claim 1, it is characterized in that, be spun by thread seal to be fixed together between the upper jacket (4) on described lower pressing cap (2) and its top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520841598.7U CN205117270U (en) | 2015-10-28 | 2015-10-28 | Multi -functional packing box pressure cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520841598.7U CN205117270U (en) | 2015-10-28 | 2015-10-28 | Multi -functional packing box pressure cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205117270U true CN205117270U (en) | 2016-03-30 |
Family
ID=55572889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520841598.7U Expired - Fee Related CN205117270U (en) | 2015-10-28 | 2015-10-28 | Multi -functional packing box pressure cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205117270U (en) |
-
2015
- 2015-10-28 CN CN201520841598.7U patent/CN205117270U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wei Benqiu Inventor after: Fan Jianguo Inventor after: Lu Kaiqing Inventor before: Wei Benqiu Inventor before: Fan Jianguo Inventor before: Lu Kaiqing |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Ping Inventor after: Feng Guoyong Inventor after: Zhang Huibin Inventor after: Zhang Xiaojing Inventor after: Wang Chunqiang Inventor after: Li Yongpeng Inventor before: Wei Benqiu Inventor before: Fan Jianguo Inventor before: Lu Kaiqing |
|
| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20171028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |