CN201964013U - Telescopic valve rod protection cylinder for valve - Google Patents
Telescopic valve rod protection cylinder for valve Download PDFInfo
- Publication number
- CN201964013U CN201964013U CN2011200443976U CN201120044397U CN201964013U CN 201964013 U CN201964013 U CN 201964013U CN 2011200443976 U CN2011200443976 U CN 2011200443976U CN 201120044397 U CN201120044397 U CN 201120044397U CN 201964013 U CN201964013 U CN 201964013U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- valve rod
- valve
- nut
- telescopic
- 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
Links
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 230000001012 protector Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
A telescopic valve rod protection cylinder is applied to protect a valve rod protection wire from being damaged. The top of the valve rod is provided with a nut, the top of the valve rod is sleeved with a gasket, the top of the valve rod is fixed with the nut, the nut is pressed on the upper part of the gasket, and the edge of the gasket is hung with a telescopic sleeve; the telescopic sleeve is formed by sleeving 2-5 sections of cylindrical sleeves together, and an upper sleeve bayonet which protrudes inwards is arranged at the upper end of the sleeve; the lower end of the sleeve is provided with a sleeve lower bayonet which protrudes outwards; the lower end of the sleeve at the lower part is provided with a connecting thread; the connecting thread is an external thread. The effect is as follows: the valve screw rod can be protected from being damaged; in the process of opening and closing the valve, the valve rod protection cylinder extends along with the rising of the valve rod and contracts along with the lowering of the valve rod, and does not break away or swing in the process of extension and retraction, thereby playing a role in sealing. The opening and closing degree of the valve can be judged according to the actual length of the valve rod protection cylinder of the valve.
Description
Technical field
The utility model relates to valve rod thread protector device, particularly a kind of valve rod protection tube of telescopic valve.
Background technique
At present, be connected with a lot of valves on oil field oil recovery, the oil transportation production flow line.The general employing rotated handwheel, and poppet stem and spool are opened valve.In order to protect valve rod to avoid to clash into or to prevent that foreign material, booty from entering in the screw thread and influence the normal switch of valve, all can install valve rod thread protector tube additional and be protected outside valve rod.At present; though conventional valve rod thread protector tube can play the effect of protection valve rod; but inconvenient, as can not to show valve switch degree; very easily cause accidents such as suppressing jar, build the pressure; go into operation, transform and implement to bring certain potential safety hazard to oil gas production or technology, also limited the application at the scene of valve rod thread protector tube.
The model utility content
The purpose of this utility model is: a kind of telescopic valve rod protection tube is provided, can plays the effect of protection valve rod, and can make things convenient for, observe accurately the switch degree of valve, guarantee the oil field recover the oil produce smoothly, safety.
The technical solution adopted in the utility model is: telescopic valve rod protection tube, mainly form by nut, pad and extension sleeve, nut is arranged at the top at valve rod, it is characterized in that: the top at valve rod is with pad, roof anchorage at valve rod has nut, nut is pressed in the top of pad, hangs with extension sleeve at the edge of pad; Extension sleeve is made up of 2～5 pitch circle cylindricality jacket casings together, and inwardly protruded sleeve upper latch notch is arranged in the upper end of sleeve, and the internal diameter of sleeve upper latch notch is identical with the external diameter of the adjacent sleeve in top; Bayonet socket under the sleeve of the oriented outer lug in the lower end of sleeve, the external diameter of bayonet socket is identical with the internal diameter of the adjacent sleeve in bottom under the sleeve; There is connecting thread the lower end of the sleeve of bottom; Connecting thread is an outside thread.Connecting thread can be fixed on lower sleeve portion on the valve.
Extension sleeve adopts stainless steel.According to valve rod length difference, with the metal sleeve of some joint different-diameters, the diameter of metal sleeve is selected according to the diameter of the valve rod of being protected.
The beneficial effects of the utility model: the telescopic valve rod protection of the utility model tube, can protect the valve screw mandrel injury-free; And in the valve switch process, valve rod protection tube raises with valve rod and extends, and shrinks with the reduction of valve rod, does not disconnect in telescopic process, does not swing, and plays seal action.According to the physical length of valve rod protection tube, can judge the switch degree of valve, bring very big facility for on-the-spot production.It is easy to use to have the scene, invests characteristics such as little, that making is simple.
Description of drawings
Fig. 1 is the telescopic valve rod protection of a utility model barrel structure generalized section.
Among the figure, 1-nut, 2-pad, 3-extension sleeve, 4-sleeve upper latch notch, bayonet socket under the 5-sleeve, 6-valve rod, 7-connecting thread.
Embodiment
Embodiment 1: with a telescopic valve rod protection tube is example, and the utility model is described in further detail.
Consult Fig. 1.The telescopic valve rod protection of the utility model tube mainly is made up of nut 1, pad 2 and extension sleeve 3.At the top of valve rod nut 1 is arranged.Be with pad 2 at the top of valve rod 6, in the roof anchorage of valve rod 6 nut 1 arranged, nut 1 is pressed in the top of pad 2.Hang with an extension sleeve 3 at the edge of pad 2; Extension sleeve 3 is that the cylindrical sleeve of 2mm is nested together and forms by three joint wall thickness, and sleeve employing stainless steel material is made.The sleeve diameter 30mm of upper end, length 150mm; Middle sleeve diameter 35mm, length 200mm; Sleeve diameter 40mm, length 250mm.The inwardly protruded sleeve upper latch notch 4 of 3mm is arranged in the upper end of sleeve, and the internal diameter of sleeve upper latch notch 4 is identical with the external diameter of the adjacent sleeve in top; The bayonet socket 5 under the sleeve of outer lug of 3mm is arranged in the lower end of sleeve, and the external diameter of bayonet socket 5 is identical with the internal diameter of the adjacent sleeve in bottom under the sleeve.There is connecting thread 7 lower end of the sleeve of bottom; Connecting thread 7 is outside threads.
Claims (2)
1. a telescopic valve rod is protected tube, mainly form by nut (1), pad (2) and extension sleeve (3), nut (1) is arranged at the top of valve rod, it is characterized in that: be with pad (2) at the top of valve rod (6), roof anchorage at valve rod (6) has nut (1), nut (1) is pressed in the top of pad (2), hangs with extension sleeve (3) at the edge of pad (2); Extension sleeve (3) is made up of 2～5 pitch circle cylindricality jacket casings together, and inwardly protruded sleeve upper latch notch (4) is arranged in the upper end of sleeve, and the internal diameter of sleeve upper latch notch (4) is identical with the external diameter of the adjacent sleeve in top; Bayonet socket under the sleeve of the oriented outer lug in the lower end of sleeve (5), the external diameter of bayonet socket under the sleeve (5) is identical with the internal diameter of the adjacent sleeve in bottom; There is connecting thread (7) lower end of the sleeve of bottom; Connecting thread (7) is an outside thread.
2. telescopic valve rod protection tube according to claim 1, it is characterized in that: extension sleeve (3) adopts stainless steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200443976U CN201964013U (en) | 2011-02-22 | 2011-02-22 | Telescopic valve rod protection cylinder for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200443976U CN201964013U (en) | 2011-02-22 | 2011-02-22 | Telescopic valve rod protection cylinder for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201964013U true CN201964013U (en) | 2011-09-07 |
Family
ID=44526550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200443976U Expired - Lifetime CN201964013U (en) | 2011-02-22 | 2011-02-22 | Telescopic valve rod protection cylinder for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201964013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952531A (en) * | 2019-12-04 | 2020-04-03 | 浙江大学 | Extensible nested steel pipe pile and installation method thereof |
-
2011
- 2011-02-22 CN CN2011200443976U patent/CN201964013U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952531A (en) * | 2019-12-04 | 2020-04-03 | 浙江大学 | Extensible nested steel pipe pile and installation method thereof |
| CN110952531B (en) * | 2019-12-04 | 2020-10-30 | 浙江大学 | Extensible nested steel pipe pile and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |