CN212451675U - Oil casing electroplating tool for protecting air tightness screw thread - Google Patents
Oil casing electroplating tool for protecting air tightness screw thread Download PDFInfo
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- CN212451675U CN212451675U CN202020824597.2U CN202020824597U CN212451675U CN 212451675 U CN212451675 U CN 212451675U CN 202020824597 U CN202020824597 U CN 202020824597U CN 212451675 U CN212451675 U CN 212451675U
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- screw thread
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Abstract
The utility model discloses a frock is electroplated to oil jacket pipe of protection gas tightness screw thread, include: the screw thread end face protection unit is of an annular structure made of silica gel and is in butt joint with the screw thread end face of the oil casing; the screw thread surface protection unit is of a sleeve structure made of nylon materials, and the inner side wall surface of at least one part of the sleeve is in interference fit with the screw thread surface of the oil sleeve. The utility model discloses an oil casing electroplates frock adopts split type structure, and uses different materials to cover screw thread surface and screw thread terminal surface, all can realize effective protection to the surface and the terminal surface of oil casing's gas tightness screw thread, and simple to operate, save the cost.
Description
Technical Field
The utility model relates to the technical field of machining and metal surface treatment, in particular to an oil casing electroplating tool for protecting an air tightness screw thread.
Background
Oil pipe corrosion is a difficult problem which troubles oil field exploitation, and inner wall corrosion is a main cause of pipe failure. In the prior art, the corrosion problem of the inner wall of the oil pipe is solved by adopting a treatment mode of a coating and a plating layer. And the oil casing pipes are all subjected to electroplating treatment. The existing electroplating tool comprises an integrally formed metal tool processed according to a buckle shape and an integrally formed plastic tool processed according to the buckle shape, and the screw thread is protected in an electroplating link in a mode of winding a protective film at the screw thread position or in the electroplating link in a mode of smearing a sealing agent.
The screw thread protection tool processed by using the integrally formed metal material is high in precision, the screw thread is easy to damage in the process of mounting and dismounting the tool, and a plating layer is easy to plate on the edge of the tool in the electroplating process, so that the tool is not durable. And the screw thread protection tool processed by adopting the integrally formed non-metallic material has poor sealing performance, so that the end face of the screw thread is easy to be plated. The thread is protected by winding the protective film, the thread needs to be wound precisely, the thread is disposable, the cost is high for a long time, the oil sleeve needs to rotate in the coating processing process, and the protective film wound well in the rotating process is easy to damage. The mode of smearing the sealant requires high smearing precision, long smearing time, one-time use, high long-term cost and difficult removal after processing.
In addition, if the end face of the airtight screw thread of the oil casing is not effectively protected, the end face is covered by the coating in the electroplating process, the end face part generates a tip effect, the current is increased, the coating is thicker than the inner wall coating and is not easy to repair, the inner wall coating is easy to damage in the repairing process to cause product scrapping, and the sealing performance is reduced due to incomplete repair or over-deep repair.
Therefore, there is a need for a tool for protecting an airtight thread, which is used in an electroplating process and can effectively save cost without damaging the thread, that is, an oil casing electroplating tool for protecting the airtight thread is provided, so as to solve the above-mentioned problems in the prior art.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a frock is electroplated to split type oil jacket pipe, all can realize effective protection to the surface and the terminal surface of oil jacket pipe's gas tightness screw thread, and is more effective to the protection of screw thread terminal surface very much, and simple to operate, save the cost.
In order to achieve the above object, the utility model provides a frock is electroplated to oil jacket pipe of protection gas tightness screw thread, include: the screw thread end face protection unit is of an annular structure made of silica gel and is in butt joint with the screw thread end face of the oil casing; the screw thread surface protection unit is of a sleeve structure made of nylon materials, and the inner side wall surface of at least one part of the sleeve is in interference fit with the screw thread surface of the oil sleeve.
Further, in the above technical solution, the thread end face protection unit may include: the first wall surface is matched with the screw thread end surface of the oil sleeve and is pressed and attached to the screw thread end surface; a second wall surface connected to the first wall surface and inclined along the first wall surface; and a third wall surface which is in contact with the press contact surface of the sleeve so that the screw thread end surface protection unit is fixed and covered at the screw thread end surface.
Further, in the above technical scheme, the nylon material can be acid-resistant alkali-resistant modified nylon. The silica gel material can adopt acid-resistant alkali-resistant silica gel.
Further, in the above technical scheme, all or a middle part of the inner side wall surface of the sleeve is in interference fit with the thread surface.
Further, in the above technical solution, the crimping surface of the sleeve is located at the root of the sleeve. After the oil sleeve electroplating tool is installed, a second wall surface of the screw thread end surface protection unit and the screw thread end surface are arranged in an inclined angle; the press-connection surface of the sleeve root of the screw thread surface protection unit is pressed on the third wall surface of the screw thread end surface protection unit.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) the electroplating tool can effectively protect the surface and the end face of the airtight screw thread, and particularly can effectively prevent electroplating solution from permeating into the end face of the screw thread, thereby improving the product quality;
2) the screw thread surface protection unit of the electroplating tool of the utility model is made of modified acid-resistant and alkali-resistant nylon, which can ensure that the screw thread of the oil casing pipe is not damaged;
3) the split structure design of the electroplating tool of the utility model can ensure that the screw thread surface protection unit and the screw thread end surface protection unit can be independently replaced after being disassembled, thereby not only ensuring that the sealing surface is not damaged, but also prolonging the service life of the tool and saving the cost;
4) the thread surface protection unit made of the nylon material has low requirements on processing precision and cannot damage the thread; and the screw thread end face protection unit is made of a silica gel material, so that the processing cost is low, and the sealing performance is better.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to make the technical means more comprehensible, and to make the above and other objects, technical features, and advantages of the present invention easier to understand, one or more preferred embodiments are listed below, and the following detailed description is given with reference to the accompanying drawings.
Drawings
Fig. 1 is an exploded view of the oil bushing electroplating tool (showing the tool and the oil bushing) for protecting the airtight screw thread of the present invention.
Fig. 2 is a schematic sectional view of the thread end surface protection unit in the oil jacket pipe electroplating tool for protecting the gas tightness thread of the present invention.
Fig. 3 is a schematic sectional view of the thread surface protection unit in the oil jacket pipe electroplating tool for protecting the airtight thread of the present invention.
Fig. 4 is a schematic sectional view of the oil casing electroplating tool for protecting the airtight screw thread after being installed on the oil casing screw thread.
Description of the main reference numerals:
1-thread surface protection unit, 10-sleeve, 11-crimping surface, 12-thread butt joint part, 2-thread end surface protection unit, 21-first wall surface, 22-second wall surface, 23-third wall surface, 3-oil casing, 31-thread and 32-oil casing inner wall.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Spatially relative terms, such as "below," "lower," "upper," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the object in use or operation in addition to the orientation depicted in the figures. For example, if the items in the figures are turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the elements or features. Thus, the exemplary term "below" can encompass both an orientation of below and above. The article may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
In this document, the terms "first", "second", etc. are used to distinguish two different elements or portions, and are not used to define a particular position or relative relationship. In other words, the terms "first," "second," and the like may also be interchanged with one another in some embodiments.
As shown in figure 1, the utility model discloses a protection gas tightness screw thread's oil jacket pipe electroplating frock includes: the oil casing comprises a screw thread surface protection unit 1 and a screw thread end face protection unit 2, wherein the screw thread end face protection unit 2 is of an annular structure made of silica gel and is in butt joint with the end face of a screw thread 31 of an oil casing 3. Preferably, but not limitatively, the silica gel material of the screw thread end face protection unit 2 is an acid-resistant and alkali-resistant silica gel material, and the screw thread end face protection unit 2 is a silica gel pad. The thread surface protection unit 1 is a sleeve structure made of nylon material, and at least a part of the inner side wall surface 12 of the sleeve 10 is in interference fit with the thread 31 surface of the oil casing 3 (refer to fig. 3), that is, the sleeve 10 is sleeved on the thread 31. Preferably, but not limitatively, the nylon material of the thread surface protection unit 1 is modified nylon with acid and alkali resistance. Further as shown in fig. 1, there is gas tightness screw thread 31 at the both ends of oil jacket pipe 3, consequently, in electroplating process, all suit on the screw thread at oil jacket pipe 3 both ends the utility model discloses an electroplating frock of split type setting, the screw thread surface protection unit 1 of nylon material and the screw thread terminal surface protection unit 2 of silica gel material (the silica gel pad promptly) promptly.
As further shown in fig. 2, the screw end face protection unit 2 includes a first wall surface 21, a second wall surface 22, and a third wall surface 23. The first wall surface 21 is adapted to the threaded end surface of the oil casing 3 and is press-fitted to the threaded end surface of the oil casing 3 (see fig. 4). The second wall surface 22 is connected to the first wall surface 21, and the second wall surface 22 extends obliquely to the left in fig. 2 (see fig. 2) on the basis of the first wall surface 21, so that the second wall surface 22 does not come into direct contact with the screw end surface after the screw end surface protection unit 2 is mounted, and damage to the screw end surface is avoided to the maximum extent. The third wall 23 is located the rear portion of screw thread terminal surface protection unit 2, the utility model discloses an after the electroplating frock installation, third wall 23 and the contact of the crimping face 11 of sleeve 10 (refer to fig. 3 and fig. 4) for screw thread terminal surface protection unit 2 (the silica gel pad promptly) is fixed and is covered in screw thread terminal surface department, thereby plays the guard action to the screw thread terminal surface.
As further shown in fig. 3 and 4, the inner side wall surface of the sleeve 10 is matched with the surface of the screw thread 31 of the oil casing 3, so that the sleeve 10 can be fixed on the screw thread 31 by rotating. For the purpose of firm fixation, all parts of the inner wall of the sleeve 10 may be in interference fit with the surface of the screw thread, and certainly, for the purpose of convenient installation, time saving and labor saving, interference fit of local parts may also be adopted, for example, the surface interference fit of the screw thread butt-joint part 12 at the middle part in fig. 3 with the corresponding position of the screw thread 31 is adopted, so that the installation and the disassembly are convenient. The crimp surface 11 of the sleeve 10 is located at the root of the sleeve 10 (i.e., the left side in fig. 3). After the electroplating tool of the oil casing 3 is installed, the second wall surface 22 of the screw thread end surface protection unit 2 and the screw thread end surface are arranged at an inclined angle (namely, the second wall surface 22 and the screw thread end surface are not in direct contact, so that the abrasion of the screw thread end surface can be effectively avoided). After the tool is installed, the crimping surface 11 at the root of the sleeve of the screw thread surface protection unit 1 is crimped on the third wall surface 23 of the screw thread end surface protection unit 2, so that the screw thread surface protection unit 1 not only protects the surface of the screw thread, but also plays a role in crimping and fixing the screw thread end surface protection unit 2.
Thus, under the combined action of the thread surface protection unit 1 and the thread end surface protection unit 2 which are split and made of different materials, the thread 31 of the oil casing 3 can be effectively and safely protected. The manufacturing and installation process of the electroplating tool of the utility model is as follows: first, a nylon thread surface protection unit 1 and a silicone thread end surface protection unit 2 (i.e., a silicone pad) are formed by thread-forming according to the size and shape of an oil jacket pipe having an airtight thread at its end. Then, the oil casing after rust removal is prepared, the thread surface protection unit 1 made of nylon and the thread end face protection unit 2 made of silica gel are respectively installed at the thread 31 of the oil casing 3 and tightened by using a pipe wrench, so that the silica gel pad is slightly deformed, electroplating solution is prevented from permeating into the end face of the air-tight thread in the electroplating process, and the end face of the thread is effectively protected. The utility model discloses a frock can make gas tightness screw thread surface and terminal surface all effectively protected, especially utilizes the micro deformation of silica gel pad can be better to the protection effect of screw thread terminal surface, and then improves product quality.
The screw thread surface protection unit 1 of the electroplating tool of the utility model selects the acid and alkali resistant modified nylon material, which can ensure that the screw thread of the oil casing pipe is not damaged; the split type structural design of the electroplating tool has the advantages that the screw thread surface protection unit 1 and the screw thread end face protection unit 2 can be independently replaced after being detached, the sealing surface is not damaged, the service life of the tool is prolonged, and the cost is saved. In addition, the thread surface protection unit 1 made of nylon has low requirements on precision, is easy to process, and does not damage the thread. The screw thread end face protection unit 2 (namely the silica gel pad) has low processing cost, better acid and alkali resistance and better sealing performance.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. Any simple modifications, equivalent changes and modifications made to the above exemplary embodiments shall fall within the scope of the present invention.
Claims (7)
1. The utility model provides a frock is electroplated to oil jacket pipe of protection gas tightness screw thread which characterized in that includes:
the screw thread end face protection unit is of an annular structure made of silica gel and is in butt joint with the screw thread end face of the oil casing;
and the screw thread surface protection unit is of a sleeve structure made of nylon materials, and at least one part of inner side wall surface of the sleeve is in interference fit with the screw thread surface of the oil sleeve.
2. The oil bushing electroplating tool for protecting the airtight screw thread according to claim 1, wherein the screw thread end face protection unit comprises:
the first wall surface is matched with the screw thread end surface of the oil sleeve and is pressed and attached to the screw thread end surface;
a second wall surface connected to the first wall surface and inclined along the first wall surface;
and a third wall surface which is in contact with the press contact surface of the sleeve so that the screw thread end surface protection unit is fixed and covers at the screw thread end surface.
3. The oil bushing electroplating tool for protecting the airtight screw thread as claimed in claim 1, wherein the nylon material is modified nylon with acid and alkali resistance.
4. The oil bushing electroplating tool for protecting the airtight screw thread as claimed in claim 1, wherein the silica gel is made of acid-resistant and alkali-resistant silica gel.
5. The oil bushing electroplating tool for protecting the airtight screw thread according to claim 1, wherein all or a middle portion of an inner side wall surface of the sleeve is in interference fit with the screw thread surface.
6. The oil bushing electroplating tool for protecting the airtight screw thread according to claim 2, wherein the crimping surface of the sleeve is located at the root of the sleeve.
7. The oil bushing electroplating tool for protecting the airtight screw thread according to claim 6, wherein after the oil bushing electroplating tool is installed, an inclination angle is formed between a second wall surface of the screw thread end surface protection unit and the screw thread end surface; the crimping surface of the sleeve root of the screw thread surface protection unit is crimped on the third wall surface of the screw thread end surface protection unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020824597.2U CN212451675U (en) | 2020-05-15 | 2020-05-15 | Oil casing electroplating tool for protecting air tightness screw thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020824597.2U CN212451675U (en) | 2020-05-15 | 2020-05-15 | Oil casing electroplating tool for protecting air tightness screw thread |
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| Publication Number | Publication Date |
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| CN212451675U true CN212451675U (en) | 2021-02-02 |
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| CN202020824597.2U Active CN212451675U (en) | 2020-05-15 | 2020-05-15 | Oil casing electroplating tool for protecting air tightness screw thread |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064074A (en) * | 2020-09-22 | 2020-12-11 | 苏州浩耐特磨具有限公司 | Air tightness control device and method applied to electroplated grinding wheel |
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2020
- 2020-05-15 CN CN202020824597.2U patent/CN212451675U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064074A (en) * | 2020-09-22 | 2020-12-11 | 苏州浩耐特磨具有限公司 | Air tightness control device and method applied to electroplated grinding wheel |
| CN112064074B (en) * | 2020-09-22 | 2021-09-14 | 苏州浩耐特磨具有限公司 | Air tightness control device and method applied to electroplated grinding wheel |
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