CN218413320U - Terminal sealing knob of IP68 high-protection electric energy meter - Google Patents
Terminal sealing knob of IP68 high-protection electric energy meter Download PDFInfo
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- CN218413320U CN218413320U CN202221917934.8U CN202221917934U CN218413320U CN 218413320 U CN218413320 U CN 218413320U CN 202221917934 U CN202221917934 U CN 202221917934U CN 218413320 U CN218413320 U CN 218413320U
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Abstract
The utility model discloses a sealed knob of high protection electric energy meter terminal of IP68 belongs to the single-phase intelligent electric energy meter of national grid, including rotatory body, dysmorphism sealing washer and auxiliary seal circle, the knob body includes the roof, the body, first spacing body and the spacing body of second, roof and body coupling, first spacing body and the spacing body of second are fixed in on the body, first spacing body forms first spacing groove with the roof, first spacing body and the spacing body of second form the second spacing groove, first spacing inslot is arranged in to the dysmorphism sealing washer, by the first ring body that connects gradually, middle ring body and second ring body constitute, the cross-section of first ring body and second ring body all is trapezoidal, the cross-section of middle ring body is the rectangle, auxiliary seal circle arranges the spacing inslot of second in. The utility model has the advantages that the double sealing rings are adopted for sealing, and the sealing performance is more reliable; the special-shaped sealing ring adopts a special-shaped structural design, so that the sealing ring is more firmly installed and has higher sealing performance after being installed on the knob.
Description
Technical Field
The utility model relates to a single-phase intelligent electric energy meter of national grid, more specifically say, it relates to a sealed knob of high protection electric energy meter terminal of IP 68.
Background
Since the national grid company releases the enterprise standards of the intelligent electric energy meter series for the first time in 2009, the popularization and application of the intelligent electric energy meter play a positive promoting role in the development of the intelligent power grid.
However, the installation environment of the intelligent electric energy meter is different according to different regional environments in China, particularly in south China, coastal regions have high temperature and high humidity and high salinity, a circuit board and components in the intelligent electric energy meter are corroded, and the service life of the electric energy meter is seriously influenced. And moreover, the flood disasters are frequent in summer every year, and the damage rate of the conventional electric energy meter is greatly improved.
Therefore, in 2021, the national power grid issues a technical requirement of an IP68 high-protection intelligent electric energy meter. On the terminal button of IP68 high protection intelligent ammeter, open the mounting hole that has with the inside intercommunication of electric energy watchcase to be equipped with the sealed complex knob of mounting hole, the knob comprises transparent PC material, and it has the red material of meeting water to peg graft on the cavity body of knob, this material is arranged in the electric energy watchcase for the electric energy meter is intake and is reminded.
The general knob comprises a knob body and a circular sealing ring, a pipe body of the knob and the sealing ring are inserted into the mounting hole, the mounting hole is sealed by the aid of interference fit of the sealing ring and the mounting hole, but the sealing performance of the knob is insufficient, and the sealing requirement of the IP68 high-protection intelligent electric energy meter cannot be met.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art existence, the utility model aims to provide a sealed knob that the leakproofness is good.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an IP68 high-protection electric energy meter terminal sealing knob comprises
The knob body comprises a top plate, a tube body, a first limiting body and a second limiting body, the top plate is connected with the tube body, the first limiting body and the second limiting body are fixed on the tube body, the first limiting body and the top plate form a first limiting groove, the first limiting body and the second limiting body form a second limiting groove,
the special-shaped sealing ring is arranged in the first limiting groove and consists of a first ring body, a middle ring body and a second ring body which are connected in sequence, the sections of the first ring body and the second ring body are both trapezoidal, the section of the middle ring body is rectangular,
and the auxiliary sealing ring is arranged in the second limiting groove, and the special-shaped sealing ring and the auxiliary sealing ring are both made of elastic materials.
Furthermore, the first limiting body is annular and coaxial with the pipe body, and a first limiting groove extends out of the side end of the special-shaped sealing ring.
Further, the special-shaped sealing ring comprises a cylindrical hole matched with the pipe body.
Furthermore, the side walls of the first ring body and the second ring body form an obtuse included angle with the side wall of the middle ring body.
Furthermore, the first limiting body is provided with two arc-shaped bulges.
By adopting the technical scheme, the beneficial effects of the utility model are that:
1. the installation mode of the knob avoids complicated thread installation, and the installation is simpler and more convenient and the installation efficiency is higher due to the adoption of press type installation;
2. the knob is sealed by the double sealing rings, so that the sealing performance is more reliable;
3. the special-shaped sealing ring adopts a special-shaped structural design, so that the sealing ring is more firmly installed and has higher sealing performance after being installed on the knob;
4. the cylindrical hole of the special-shaped sealing ring is tightly attached to the pipe body, so that the sealing ring cannot deform and fall off due to external friction force during installation;
5. the side wall of the special-shaped sealing ring is designed in a shape combining a plane and an inclined plane, and the inclined plane has a guiding function, so that the knob can more easily enter the mounting hole when being mounted; the plane part is matched with the mounting hole, so that the matching area is increased, and the sealing performance is better; compare with circular silica gel circle, from line contact to face contact, sealing area is bigger, and water-proof effects is better.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic sectional structure view of the knob.
Fig. 3 is a schematic view of the installation structure of the knob.
Fig. 4 is a schematic view of the exploded structure of the knob.
Detailed Description
Embodiments of the present invention are further described with reference to fig. 1 to 4.
The utility model discloses a specific implementation scheme, including knob body 1, special-shaped seal ring 2 and auxiliary seal ring 3 comprise elastic material, knob body 1 includes roof 11, body 12, first spacing body 13 and second spacing body 14, roof 11 is connected with body 12, first spacing body 13 and second spacing body 14 are fixed on body 12, first spacing body 13 forms first spacing groove 101 with roof 11, first spacing body 13 and second spacing body 14 form second spacing groove 102, special-shaped seal ring 2 includes cylindrical hole 103 with body 12 complex;
the special-shaped sealing ring 2 is arranged in the first limiting groove 101 and is composed of a first ring body 21, a middle ring body 22 and a second ring body 23 which are sequentially connected, the sections of the first ring body 21 and the second ring body 23 are both trapezoidal, the section of the middle ring body 22 is rectangular, the side end of the special-shaped sealing ring 2 extends out of the first limiting groove 101, and the side walls of the first ring body 21 and the second ring body 23 and the side wall of the middle ring body 22 form an obtuse included angle;
the auxiliary sealing ring 3 is disposed in the second limiting groove 102, and the first limiting body 13 is annular and has two arc-shaped protrusions coaxial with the pipe body 12 and the first limiting body 13.
The principle is as follows: the knob is inserted and installed on the electric energy meter shell through the installation hole, the pipe body 12 is inserted into the installation hole at the moment, the special-shaped sealing ring 2 and the auxiliary sealing ring 3 are both abutted against the hole wall of the installation hole, and the installation hole is sealed;
the knob body 1 is sleeved with the special-shaped sealing ring 2 and the auxiliary sealing ring 3, and the double sealing rings are adopted for sealing, so that the sealing performance is more reliable;
when the special-shaped sealing ring 2 is sleeved on the pipe body 12, the cylindrical hole 103 is tightly attached to the side wall of the pipe body 12, so that the sealing ring is not easy to deform and fall off due to external friction force during installation;
the side walls of the first ring body 21, the middle ring body 22 and the second ring body 23 adopt a shape design combining a plane and an inclined plane, and the inclined plane has a guiding function, so that the pipe body 12 can more easily enter the mounting hole when the knob is mounted; the plane side wall of the middle ring body 22 is matched with the mounting hole, so that the matching area is increased, and the sealing performance is better; compared with a circular sealing ring, the surface contact is changed from line contact, the sealing area is larger, and the waterproof effect is better.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled person in the art should be able to make general changes and substitutions within the scope of the technical solution of the present invention.
Claims (5)
1. An IP68 high-protection electric energy meter terminal sealing knob is characterized by comprising
The knob body comprises a top plate, a tube body, a first limiting body and a second limiting body, the top plate is connected with the tube body, the first limiting body and the second limiting body are fixed on the tube body, the first limiting body and the top plate form a first limiting groove, the first limiting body and the second limiting body form a second limiting groove,
the special-shaped sealing ring is arranged in the first limiting groove and consists of a first ring body, a middle ring body and a second ring body which are connected in sequence, the sections of the first ring body and the second ring body are both trapezoidal, the section of the middle ring body is rectangular,
an auxiliary sealing ring is arranged in the second limit groove,
the special-shaped sealing ring and the auxiliary sealing ring are both made of elastic materials.
2. The terminal sealing knob of the IP68 high-protection electric energy meter, according to claim 1, wherein the first limiting body is ring-shaped and coaxial with the tube body, and a first limiting groove extends from a side end of the special-shaped sealing ring.
3. The IP68 high protection electric energy meter terminal sealing knob according to claim 2, wherein the side walls of the first ring body and the second ring body form an obtuse included angle with the side wall of the middle ring body.
4. The sealing knob for the IP68 high-protection electric energy meter terminal as claimed in claim 1, wherein the profiled sealing ring comprises a cylindrical hole matched with the tube body.
5. The IP68 high-protection electric energy meter terminal sealing knob according to claim 1, wherein the first limiting body is provided with two arc-shaped bulges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221917934.8U CN218413320U (en) | 2022-07-22 | 2022-07-22 | Terminal sealing knob of IP68 high-protection electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221917934.8U CN218413320U (en) | 2022-07-22 | 2022-07-22 | Terminal sealing knob of IP68 high-protection electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218413320U true CN218413320U (en) | 2023-01-31 |
Family
ID=85014053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221917934.8U Active CN218413320U (en) | 2022-07-22 | 2022-07-22 | Terminal sealing knob of IP68 high-protection electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218413320U (en) |
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2022
- 2022-07-22 CN CN202221917934.8U patent/CN218413320U/en active Active
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