CN211980903U - Waterproof tensile pure platinum needle water electrode - Google Patents
Waterproof tensile pure platinum needle water electrode Download PDFInfo
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- CN211980903U CN211980903U CN201922427824.8U CN201922427824U CN211980903U CN 211980903 U CN211980903 U CN 211980903U CN 201922427824 U CN201922427824 U CN 201922427824U CN 211980903 U CN211980903 U CN 211980903U
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- platinum needle
- electrode body
- stainless steel
- steel insert
- locking screw
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Abstract
The utility model discloses a waterproof tensile pure platinum needle water electrode, including platinum needle, locking screw, stainless steel inserts, electrode body and pressure gasket. One end of the platinum needle is a T-shaped end, and the T-shaped end is locked in the stainless steel embedded body by the locking screw; the stainless steel inlay is arranged in the electrode body, and the platinum needle passes through the electrode body and extends to the outside of the electrode body; the pressure gasket is arranged at the junction of the platinum needle and the electrode body. The utility model has reliable anti-loose structure, good sealing performance and can avoid leakage phenomenon; and has excellent electrical contact performance.
Description
Technical Field
The utility model relates to a waterproof tensile pure platinum needle electrode belongs to platinum needle electrode technical field.
Background
In some cooling systems of high-voltage power equipment, in order to clamp the potential difference of the cooling liquid, water electrodes are required to be arranged at different positions of a cooling pipeline to ensure that the potential differences of the cooling liquid at different positions are equal. Platinum metal is an excellent water electrode material because it has very excellent electrochemical inertness. Generally, to reduce the cost, platinum plating of stainless steel is used as the electrode portion material. However, for some demanding applications, pure platinum is still required as an electrode material for water electrodes.
At present, a thin-walled tube is processed at one end of a stainless steel electrode body, and a platinum needle is plugged into the thin-walled tube and then is shrunk through rolling processing to compress the platinum needle. The structure is very easy to cause the problem that the platinum needle is loosened in the using process. The main reasons for this analysis include two, the first: the stainless steel thin-walled tube can partially rebound after being rolled, so that the stainless steel thin-walled tube is not really pressed; secondly, the method comprises the following steps: the platinum material is soft and easy to deform, and can generate plastic deformation under the dynamic impact of flowing cooling liquid in long-term use, so that the platinum material is loosened from the stainless steel thin-wall pipe. Therefore, a pure platinum needle water electrode structure which can ensure the connection reliability of the platinum needle and the electrode body and has excellent sealing performance is needed.
Disclosure of Invention
In order to solve the technical problem, the utility model discloses a pure platinum needle water electrode of waterproof tensile, its concrete technical scheme is: comprises a platinum needle, a stainless steel insert, an electrode body, a locking screw and a pressure gasket. One end of the platinum needle is a T-shaped end, and the T-shaped end is inserted into the stainless steel insert and fixed by using a locking screw. The platinum needle is prevented from being pulled out or loosened by pressing the T-shaped structure of the platinum needle. The pressure gasket is sleeved on the platinum needle and tightly presses the locking screw. The pressure gasket and the stainless steel insert are wrapped by the electrode body, and the platinum needle extends out of the electrode body.
Further, the electrode body and the stainless steel insert are coaxially nested, one end of the stainless steel insert is retracted into the electrode body, and the other end of the stainless steel insert protrudes out of the electrode body; the retracted end of the stainless steel insert is provided with a fixed groove, and the protruding end of the stainless steel insert is provided with a connecting groove.
Furthermore, the inner wall of the fixing groove is provided with internal threads, and the locking screw is used for preventing loosening. The locking steel screw is sleeved on the outer wall of the platinum needle, and the T-shaped end of the platinum needle is abutted to the bottom of the fixed groove. The locking screw is in threaded connection with the fixing groove to lock the platinum needle. After the locking screw locks the platinum needle, the encapsulated and injection-molded PVDF can form a structure to further prevent looseness.
Furthermore, the pressure gasket is used for stopping leakage, the pressure gasket is sleeved on the outer wall of the platinum needle and connected with the loosening stopping piece, and the pressure gasket is located inside the motor body and is flush with the motor body. The high-fluorine sealing ring is added inside, the sealing reliability is further improved, and the high temperature resistance and the aging resistance in long-term use are ensured by the material.
Furthermore, the pressure gasket is in a circular truncated cone shape, and the diameter of the pressure gasket is gradually increased along with the approach of the pressure gasket and the locking screw.
Further, the device also comprises an inner O-shaped ring and an outer O-shaped ring; the inner O-shaped ring is sleeved in the groove of the stainless steel insert and is used for improving the waterproof reliability of the joint surface of the stainless steel insert and the fluoroplastic coated body; the external O-shaped ring is sleeved in the external groove of the electrode body and used for realizing the overall sealing performance of the water electrode after installation.
Furthermore, the joint surface of the stainless steel insert and the electrode body is of a zigzag gully structure so as to increase the length of the sealing surface.
Furthermore, the stainless steel insert comprises an external connecting part, a middle transition part and a platinum needle fixing part, wherein the outer wall of the external connecting part is provided with a plurality of parallel thread rings, the middle transition part is cylindrical, and the diameter of the middle transition part is smaller than that of the external connecting part; the platinum needle fixing part is cylindrical, one end face of the platinum needle fixing part is provided with a concave second-order step surface, and the outer wall of the platinum needle fixing part is provided with a concave circular groove. The outer wall structure of the stainless steel insert is long and tortuous, and the reliability of water sealing is improved.
Further, the height of the T-shaped end of the platinum pin keeps a positive tolerance. And a positive tolerance is kept after the T-shaped head of the platinum needle is processed, and the platinum needle is tightly attached to the insert body by compressing the head part of the platinum needle to generate plastic deformation during assembly.
The utility model has the advantages that: the invention can firstly ensure that the platinum needle has high connection reliability and connection strength: the platinum needle T-shaped head forms reliable structural looseness prevention and has large pull-out resistance; after the platinum needle is locked by the anti-loosening piece, the reverse-buckling structure is formed again through the compression gasket and the encapsulation injection molding to further prevent loosening.
Secondly, the invention can ensure high sealing reliability and avoid leakage phenomenon: the combination surface of the rubber-coated fluoroplastic body and the stainless steel insert is long and zigzag, so that the reliability of water sealing is improved; the O-shaped ring is additionally arranged inside the sealing ring, so that the sealing reliability is further improved. Further, the way of fixing the platinum pins does not reduce the length of the sealing surface of the water.
Finally, the invention can ensure excellent electric contact performance: the T-shaped end is integrally processed on the platinum needle and the loosening prevention piece, so that the platinum needle and the inner hole of the loosening prevention piece are tightly attached, and good electrical contact performance between the platinum needle and the loosening prevention piece is guaranteed; and a positive tolerance is left after the T-shaped head of the platinum needle is processed, and the platinum needle head is subjected to plastic deformation through assembly, so that the platinum needle is tightly attached to the insert body.
Drawings
Figure 1 is a schematic structural view of the present invention,
figure 2 is a cross-sectional view of the present invention,
reference numerals: 1-platinum needle, 2-locking screw, 3-stainless steel insert, 4-internal O-shaped ring, 5-pressure gasket, 6-electrode body, 7-external O-shaped ring, 31-fixed groove, 32-connecting groove, 3 a-part connecting part, 3 b-middle transition part and 3 c-platinum needle fixing part.
Detailed Description
The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.
As shown in figure 1, the waterproof tensile pure platinum needle water electrode comprises an electrode body 6, wherein the electrode body 6 comprises two integrally formed parts, as shown in figures 1 and 2, one part is larger in diameter, the other part is smaller in diameter, and threads are arranged on the outer wall of the part smaller in diameter. A circle of clamping ring is arranged at the junction of the two parts, and an external O-shaped ring for fastening is arranged in the clamping ring. The electrode body 1 is formed by injection molding and pouring and is consistent with the shape of an injection mold.
The stainless steel insert 3 is embedded in the electrode body 1. One end of the stainless steel insert 3 is spaced from the left end of the motor body 1, namely, the stainless steel insert is retracted into the electrode body 1, and the end is called a retracted end; the other end protrudes from the right end of the electrode body 1, which is called a protruding end.
The retracted end of the stainless steel insert 3 is provided with a fixed groove 31, and the protruding end is provided with a connecting groove 32. The fixing groove 31 is a threaded groove, and the connecting groove 32 is adapted to an external connection member, and is preferably in the form of a screw in this embodiment. The outside of the retraction end is provided with an internal O-shaped ring for fastening.
One end of the platinum needle 1 is a T-shaped end, and a stainless steel locking screw 2 is sleeved at the T-shaped end. The locking screw 2 is in threaded fit with the fixing groove 31, and the T-shaped end of the platinum needle is locked at the bottom of the fixing groove 31. The fluoroplastic pressure gasket 5 is sleeved on the platinum needle 1 and tightly presses the locking screw 2, and the pressure gasket 5 is flush with the left end of the electrode body 1.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a pure platinum needle water electrode of waterproof tensile which characterized in that: comprises a platinum needle (1), a locking screw (2), a stainless steel insert (3), an electrode body (6) and a pressure gasket (5);
one end of the platinum needle (1) is a T-shaped end, and the T-shaped end is locked in the stainless steel insert (3) by using the locking screw (2);
the stainless steel insert (3) is arranged in the electrode body (6), and the platinum needle (1) penetrates through the electrode body (6) and extends to the outside of the electrode body;
the pressure gasket (5) is arranged at the junction of the platinum needle (1) and the electrode body (6).
2. The waterproof tensile pure platinum needle water electrode according to claim 1, characterized in that: the electrode body (6) is the same as the central shaft of the stainless steel insert (3), one end of the stainless steel insert (3) is retracted into the electrode body (6), the end is provided with a fixing groove (31), the other end of the stainless steel insert protrudes out of the electrode body (6), and the end is provided with a connecting groove (32).
3. The waterproof tensile pure platinum needle water electrode according to claim 2, characterized in that: the inner wall of fixed slot (31) is equipped with the internal thread, locking screw (2) cover in platinum needle (1) T shape end root, locking screw (2) and fixed slot (31) threaded connection, support the T type end of platinum needle (1) to fixed slot (31) tank bottom, realize locking platinum needle (1).
4. The waterproof tensile pure platinum needle water electrode according to claim 3, characterized in that: the pressure gasket (5) is sleeved on the outer wall of the platinum needle (1) and compresses the locking screw (2), and the pressure gasket (5) is positioned inside the electrode body (6) and is flush with the electrode body.
5. The waterproof tensile pure platinum needle water electrode according to claim 4, characterized in that: the pressure gasket (5) is in a circular truncated cone shape, and the diameter of the pressure gasket is gradually increased along with the approach of the pressure gasket and the locking screw (2).
6. The waterproof tensile pure platinum needle water electrode according to claim 2, characterized in that: the sealing ring also comprises an inner O-shaped ring (4) and an outer O-shaped ring (7); the inner O-shaped ring is sleeved in a groove on the outer wall of the inner contraction end of the stainless steel insert (3); the external O-shaped ring is sleeved in the external groove of the electrode body (6).
7. The waterproof tensile pure platinum needle water electrode according to claim 1, characterized in that: the joint surface of the stainless steel insert (3) and the electrode body (6) is of a zigzag gully structure so as to increase the length of the sealing surface.
8. The waterproof tensile pure platinum needle water electrode according to claim 7, characterized in that: the stainless steel insert (3) comprises an external connecting part (3a), a middle transition part (3b) and a platinum needle fixing part (3c), a plurality of parallel thread rings are arranged on the outer wall of the external connecting part (3a), the middle transition part (3b) is cylindrical, and the diameter of the middle transition part is smaller than that of the external connecting part (3 a); the platinum needle fixing part (3c) is cylindrical, the end face of the platinum needle fixing part is provided with a concave second-order step face, and the outer wall of the platinum needle fixing part is provided with a groove.
9. The waterproof tensile pure platinum needle water electrode according to claim 1, characterized in that: the height of the T-shaped end of the platinum needle (1) keeps a positive tolerance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922427824.8U CN211980903U (en) | 2019-12-30 | 2019-12-30 | Waterproof tensile pure platinum needle water electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922427824.8U CN211980903U (en) | 2019-12-30 | 2019-12-30 | Waterproof tensile pure platinum needle water electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211980903U true CN211980903U (en) | 2020-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922427824.8U Active CN211980903U (en) | 2019-12-30 | 2019-12-30 | Waterproof tensile pure platinum needle water electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211980903U (en) |
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2019
- 2019-12-30 CN CN201922427824.8U patent/CN211980903U/en active Active
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