CN204726865U - The new-type fender guard of oil well steel tube end outside thread - Google Patents
The new-type fender guard of oil well steel tube end outside thread Download PDFInfo
- Publication number
- CN204726865U CN204726865U CN201520469558.4U CN201520469558U CN204726865U CN 204726865 U CN204726865 U CN 204726865U CN 201520469558 U CN201520469558 U CN 201520469558U CN 204726865 U CN204726865 U CN 204726865U
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- CN
- China
- Prior art keywords
- protection ring
- oil well
- plastics protection
- steel loop
- tube end
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- 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.)
- Withdrawn - After Issue
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Abstract
There is provided a kind of oil well steel tube end outside thread new-type fender guard; there is steel loop housing and plastics protection ring; described steel loop housing is circumferentially laid with multiple overflow weir; described plastics protection ring to be placed in steel loop housing and both single injection-moldeds the feed liquid of being overflowed by overflow weir riveted is fastening again, described plastics protection ring inner peripheral surface is shaped with the negative thread with oil well steel tube end outside thread adaptation.The utility model is by uniform multiple overflow weir on steel loop housing; riveted is fastening again for plastics protection ring and steel loop housing single injection-molded the feed liquid of being overflowed by overflow weir; thus the binding force increased considerably between steel loop housing and plastics protection ring; and the negative thread on plastics protection ring inner periphery is also single injection-molded; turning operation that need not be follow-up, significantly reduces productive costs.
Description
Technical field
The utility model belongs to oil well water pipe precaution technical field, is specifically related to the new-type fender guard of a kind of oil well steel tube end outside thread.
Background technology
Be the patent No. with the immediate prior art of the utility model be " ZL201120568749.8 ", patent name is the patent document of " nonpetroleum oil well steel pipe pipe end external thread protective device ", the inner circle that the technical scheme of this file is achieved in that steel loop housing is set with the plastics protection ring suitable with it, the inner circle of plastics protection ring is shaped with the negative thread suitable with oil well steel pipe pipe end outside thread, the cylindrical of plastics protection ring is shaped with reinforced rib vertically, and reinforced rib has groove, the inwall of steel loop housing is shaped with projection, and make projection be positioned at groove.Its objective is by the groove on plastics protection ring outer wall and the adaptation of the projection on steel loop housing, thus strengthen the anchoring strength of steel loop and plastics protection ring.The patent No. is " ZL201320113059.2 "; patent name is in the patent document of " pipe end external thread protective device of petroleum oil well steel pipe "; mention and " be shaped with four wide muscle and many narrow muscle vertically at plastics protection ring excircle; wherein; when wide muscle is installed, be fitting for one with steel loop housing, during narrow muscle installation, play reinforcing directional tagging.Such scheme; all the projection by being shaped with in plastics protection ring outside wall surface and steel loop shell inner surface and groove adaptation; or wide muscle and steel loop housing are set in plastics protection ring outside wall surface and are fitting for one; user facillity and technical use is met although can solve; but the fender guard structure used now is " ladle is moulded " structure; its shortcoming is mainly manifested in: one is manufacturing process is wanted the cylinder iron sheet steel cylinder of first what a appropriateness prefabricated and the injection moulding barrel of appropriateness; then steel part is enclosed within above plastic barrel, and circumference 4 is fixed.Steel outside, is moulded interior, screw thread on car again in plastic.This structure just causes steel part and plastic bump contact from source, and steel lacks active constraint between moulding.Because plastic ceaselessly inwardly shrinks, last steel part and plastic faying face form gap, form two skins, mutually loosen, and do not borrow power mutually.Steel is difficult to fixing between moulding, cause spinning mutually when using.In routine use, often have steel part self falling, do not have due protective effect, also there is potential potential safety hazard, solution normally increases steel plate and plastic thickness, and to gain in strength, but root problem is not effectively solved; Two is on plastic inwall car after screw thread, and plastic is axially also shrinking especially except while longitudinal contraction, and thread pitch there occurs change.So size screw thread plastic must timeliness rear car silk, screw thread can not disposable injection moulding, adds operation and expense, causes productive costs unprecedented soaring, be therefore necessary to propose to improve.
Utility model content
The technical matters that the utility model solves: provide a kind of oil well steel tube end outside thread new-type fender guard; uniform multiple overflow weir on steel loop housing; riveted is fastening again for plastics protection ring and steel loop housing single injection-molded the feed liquid of being overflowed by overflow weir; thus the binding force increased considerably between steel loop housing and plastics protection ring; and the negative thread on plastics protection ring inner periphery is also single injection-molded; turning operation that need not be follow-up, significantly reduces productive costs.
The technical solution adopted in the utility model: the new-type fender guard of oil well steel tube end outside thread; there is steel loop housing and plastics protection ring; described steel loop housing is circumferentially laid with multiple overflow weir; described plastics protection ring to be placed in steel loop housing and both single injection-moldeds the feed liquid of being overflowed by overflow weir riveted is fastening again, described plastics protection ring inner peripheral surface is shaped with the negative thread with oil well steel tube end outside thread adaptation.
Further, described overflow weir is shaped with the annular groove increasing feed liquid area of contact on the external periphery of steel ring shell, and feed liquid is overflowed to be bonded in annular groove from overflow weir and formed riveting post and make steel loop housing and plastics protection ring riveted is fastening again.
Further, the negative thread car system on described plastics protection ring inner peripheral surface or single injection-molded.
Further; described plastics protection ring sealing end is shaped with is convenient to hand-held groove; described bottom portion of groove is shaped with label hole; groove ends both sides are shaped with handling hole, install in wrench insertion handling hole and the outside thread of the negative thread on plastics protection ring inner periphery and oil well steel tube end is screwed or unclamped.
Further, to be greater than sealing end diameter tapered for described steel loop housing open end diameter.
Further, one end that described steel loop housing is relative with open end is shaped with in-flanges.
The utility model advantage compared with prior art:
1, steel loop housing is circumferentially laid with multiple overflow weir, plastics protection ring to be placed in steel loop housing and both single injection-moldeds form riveting post by the feed liquid that overflow weir overflows and make between the two again riveted fastening, " steel is embraced and moulded " not only increases binding force between the two, and has stopped between steel loop housing and plastics protection ring mutually by means of the loosening phenomenon that power occurs;
2, the injection molded of the negative thread on plastics protection ring inner periphery, saves follow-up turning and aging sequence, significantly enhances productivity, effectively reduce productive costs.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is steel ring shell body structure schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing 1,2, a kind of embodiment of the present utility model is described.
The new-type fender guard of oil well steel tube end outside thread, there is steel loop housing 1 and plastics protection ring 2, described steel loop housing 1 is circumferentially laid with multiple overflow weir 9, described plastics protection ring 2 to be placed in steel loop housing 1 and both single injection-moldeds the feed liquid of being overflowed by overflow weir 9 riveted is fastening again, specifically, described overflow weir 9 is shaped with the annular groove 7 increasing feed liquid area of contact on steel loop housing 1 outer circumference surface, feed liquid is overflowed to be bonded in annular groove 7 from overflow weir 9 and is formed " riveting post " and make steel loop housing 1 riveted is fastening again with plastics protection ring 2, steel just hugs together between moulding, formed " steel is embraced and moulded ".Described plastics protection ring 2 inner peripheral surface is shaped with the negative thread 3 with oil well steel tube end outside thread adaptation.Specifically, the negative thread 3 car system on described plastics protection ring 2 inner peripheral surface or single injection-molded, when single injection-molded, size screw thread plastic, without the need to follow-up timeliness and Che Si, reduces operation and expense, significantly reduces productive costs.
Above-mentioned plastics protection ring 2 sealing end is shaped with is convenient to hand-held groove 4; product aesthetic property can also be increased; label hole 5 is shaped with bottom described groove 4; use in order to plug in label; both sides, groove 4 end are shaped with handling hole 6; install in wrench insertion handling hole 6 and the outside thread of the negative thread on plastics protection ring 2 inner periphery and oil well steel tube end is screwed or unclamped, easy disassembly uses.It is tapered that described steel loop housing 1 open end diameter is greater than sealing end diameter, and one end that described steel loop housing 1 is relative with open end is shaped with in-flanges 8, the strength of decomposable asymmetric choice net external impact, this device of available protecting.
Implementation method: first make pyramid type steel cylinder, and on steel cylinder wall punching be evenly distributed, size appropriateness, towards the overflow weir 9 in axle center, then inner edge is turned over, after surface treatment, steel part puts single injection-molded after injection mould, product weight alleviates 1/3rd, greatly reduce cost and achieve automated production, being once cross over progress, there is very high practical value.
The utility model device contains the thread protector of all oil well steel pipes between diameter 60.3mm to 339.7mm and box cupling specification.
Above-described embodiment, just preferred embodiment of the present utility model, is not used for limiting the utility model practical range, therefore all equivalence changes done with content described in the utility model claim, all should be included within the utility model right.
Claims (6)
1. the new-type fender guard of oil well steel tube end outside thread; there is steel loop housing (1) and plastics protection ring (2); it is characterized in that: described steel loop housing (1) is circumferentially laid with multiple overflow weir (9); described plastics protection ring (2) to be placed in steel loop housing (1) and both single injection-moldeds the feed liquid of being overflowed by overflow weir (9) riveted is fastening again, described plastics protection ring (2) inner peripheral surface is shaped with and the negative thread of oil well steel tube end outside thread adaptation (3).
2. the new-type fender guard of oil well steel tube end outside thread according to claim 1; it is characterized in that: described overflow weir (9) is shaped with the annular groove (7) increasing feed liquid area of contact on steel loop housing (1) outer circumference surface, feed liquid is overflowed to be bonded in annular groove (7) from overflow weir (9) and is formed riveting post and make steel loop housing (1) riveted is fastening again with plastics protection ring (2).
3. the new-type fender guard of oil well steel tube end outside thread according to claim 1 and 2, is characterized in that: negative thread (3) the car system on described plastics protection ring (2) inner peripheral surface or single injection-molded.
4. the new-type fender guard of oil well steel tube end outside thread according to claim 1 and 2; it is characterized in that: described plastics protection ring (2) sealing end is shaped with is convenient to hand-held groove (4); described groove (4) bottom is shaped with label hole (5); groove (4) both sides, end are shaped with handling hole (6), install in wrench insertion handling hole (6) and the outside thread of the negative thread on plastics protection ring (2) inner periphery and oil well steel tube end is screwed or unclamped.
5. the new-type fender guard of oil well steel tube end outside thread according to claim 1 and 2, is characterized in that: it is tapered that described steel loop housing (1) open end diameter is greater than sealing end diameter.
6. the new-type fender guard of oil well steel tube end outside thread according to claim 1 and 2, is characterized in that: described steel loop housing (1) one end relative with open end is shaped with in-flanges (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469558.4U CN204726865U (en) | 2015-07-02 | 2015-07-02 | The new-type fender guard of oil well steel tube end outside thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469558.4U CN204726865U (en) | 2015-07-02 | 2015-07-02 | The new-type fender guard of oil well steel tube end outside thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204726865U true CN204726865U (en) | 2015-10-28 |
Family
ID=54385235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520469558.4U Withdrawn - After Issue CN204726865U (en) | 2015-07-02 | 2015-07-02 | The new-type fender guard of oil well steel tube end outside thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204726865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000265A (en) * | 2015-07-02 | 2015-10-28 | 宝鸡市金城机器制造有限责任公司 | Novel protective device for pipe end external threads of petroleum well steel pipe |
-
2015
- 2015-07-02 CN CN201520469558.4U patent/CN204726865U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000265A (en) * | 2015-07-02 | 2015-10-28 | 宝鸡市金城机器制造有限责任公司 | Novel protective device for pipe end external threads of petroleum well steel pipe |
| CN105000265B (en) * | 2015-07-02 | 2019-03-29 | 宝鸡市金城机器制造有限责任公司 | The new-type protective device of oil well steel tube end external screw thread |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151028 Effective date of abandoning: 20190329 |