CN220627690U - Fully-sealed environment-friendly gas density relay - Google Patents
Fully-sealed environment-friendly gas density relay Download PDFInfo
- Publication number
- CN220627690U CN220627690U CN202322039611.4U CN202322039611U CN220627690U CN 220627690 U CN220627690 U CN 220627690U CN 202322039611 U CN202322039611 U CN 202322039611U CN 220627690 U CN220627690 U CN 220627690U
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- China
- Prior art keywords
- annular
- shell
- cover plate
- transparent cover
- density relay
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 230000000903 blocking effect Effects 0.000 claims abstract description 14
- 239000000565 sealant Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910018503 SF6 Inorganic materials 0.000 description 5
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a fully-sealed environment-friendly gas density relay, which comprises a cylindrical shell, wherein the shell is formed by connecting a transparent cover plate, an upper shell and a lower shell which are sequentially arranged from top to bottom; the transparent cover plate is arranged in the upper shell and is blocked and limited by an annular blocking edge at the upper end in the upper shell, a spring gasket is arranged between the annular blocking edge and the transparent cover plate, and a sealing gasket is arranged at the periphery of the lower part of the transparent cover plate; the periphery of the upper end of the lower shell stretches into the upper shell and is propped against the lower part of the sealing gasket, the periphery of the lower end of the upper shell is inwards stamped to form an annular pressing sheet, an annular groove is formed at the position, corresponding to the annular pressing sheet, of the outer part of the lower shell, the annular pressing sheet stretches into the annular groove, and a sealing ring is tightly pressed between the annular pressing sheet and the side wall of the annular groove. The gas density relay has reasonable structural design, and can effectively improve the sealing performance of the product and improve the quality of the product by optimizing the structure.
Description
Technical Field
The utility model relates to a fully-sealed environment-friendly gas density relay, and belongs to the technical field of relays and detection.
Background
The gas density relay is an important protection and control element in the power system, and accurately measures the pressure value at the current temperature when the signal acts, if the breaker breaks down, great economic loss can be caused, various indexes of the breaker, particularly SF6 gas, must be monitored frequently to ensure the running reliability of the breaker, and the SF6 breaker must reach the regulation of related standards, so that the SF6 breaker can keep a good working state for a long time. In a conventional gas density relay (patent document CN201117559Y, a novel SF6 gas density relay), a case is connected to a cover, a bushing is provided between a glass and the case in the cover, and the glass is supported by the bushing after the case and the cover are assembled together. The lack of an effective sealing structure in the gas density relay of this patent document results in poor sealing properties of the gas density relay.
Disclosure of Invention
In this regard, the utility model aims to provide a fully-sealed environment-friendly gas density relay, which can effectively improve the sealing performance of the gas density relay.
The technical scheme for realizing the purpose of the utility model is as follows:
the fully-sealed environment-friendly gas density relay comprises a cylindrical shell, wherein the shell is formed by connecting a transparent cover plate, an upper shell and a lower shell which are sequentially arranged from top to bottom; the transparent cover plate is arranged in the upper shell and is blocked and limited by an annular blocking edge at the upper end in the upper shell, a spring gasket is arranged between the annular blocking edge and the transparent cover plate, and a sealing gasket is arranged at the periphery of the lower part of the transparent cover plate; the periphery of the upper end of the lower shell stretches into the upper shell and is propped against the lower part of the sealing gasket, the periphery of the lower end of the upper shell is inwards stamped to form an annular pressing sheet, an annular groove is formed at the position, corresponding to the annular pressing sheet, of the outer part of the lower shell, the annular pressing sheet stretches into the annular groove, and a sealing ring is tightly pressed between the annular pressing sheet and the side wall of the annular groove.
In a further technical scheme, the annular blocking edge is formed by stamping the periphery of the upper end of the upper shell inwards.
In a further technical scheme, the lower shell is internally stamped outside the lower shell to form the annular groove and inside the lower shell to form annular protrusions, and the distance between the annular protrusions and the annular blocking edges is not smaller than 1cm.
In a further technical scheme, the annular groove is filled with sealant, and the sealant covers the lower edge of the annular pressing piece.
In a further technical scheme, the periphery of the upper end of the lower shell is internally stamped to form an annular abutting part, the annular abutting part is provided with an upper plane parallel to the transparent cover plate, and the upper plane abuts against the lower part of the sealing gasket.
In a further technical scheme, a spring gasket is arranged between the annular baffle edge and the transparent cover plate, and the spring gasket is a corrugated gasket made of stainless steel.
In a further technical scheme, the transparent cover plate is an acrylic plate or glass.
In the further technical scheme, the sealing gasket and the sealing ring are made of rubber or silica gel.
The utility model has the positive effects that: the gas density relay has reasonable structural design, the gap between the transparent cover plate and the lower shell is sealed through the sealing gasket, the gap between the upper shell and the lower shell is sealed through the sealing ring, and the elastic gasket is arranged between the annular baffle edge of the upper shell and the transparent cover plate, so that stable downward elastic force can be provided for the transparent cover plate through the elastic gasket, and the movement possibly generated by the transparent cover plate in the vertical direction is compensated, so that the transparent cover plate 1 is closely attached to the sealing gasket all the time, the sealing performance is further enhanced, the sealing performance of the shell is effectively ensured, and the service performance of a product is improved to a great extent.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a fully sealed environment-friendly gas density relay of the present utility model;
FIG. 2 is a top view of the fully sealed environment-friendly gas density relay shown in FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a partially enlarged view at B in fig. 3.
The reference numerals shown in the figures are: 1-a transparent cover plate; 2-an upper shell; 21-an annular blocking edge; 22-annular tabletting; 3-a lower shell; 31-an annular groove; 32-annular protrusions; 33-sealing glue; 34-annular abutment; 5-a sealing ring; 6-spring washer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the fully-sealed environment-friendly gas (environment-friendly gas such as sulfur hexafluoride gas) density relay in the embodiment comprises a cylindrical shell, wherein the shell is formed by connecting a transparent cover plate 1, an upper shell 2 and a lower shell 3 which are sequentially arranged from top to bottom, and the transparent cover plate 1 is an acrylic plate or glass so as to read the upper scale of the density relay through the transparent cover plate 1; the transparent cover plate 1 is arranged in the upper shell 2 and is blocked and limited by an annular blocking edge 21 at the upper end in the upper shell 2, a spring gasket 6 is arranged between the annular blocking edge 21 and the transparent cover plate 1, and a sealing gasket is arranged at the periphery of the lower part of the transparent cover plate 1; the periphery of the upper end of the lower shell 3 stretches into the upper shell 2 and is propped against the lower part of the sealing gasket, the periphery of the lower end of the upper shell 2 is inwards stamped to form an annular pressing sheet 22, an annular groove 31 is formed at the position, corresponding to the annular pressing sheet 22, of the outer part of the lower shell 3, the annular pressing sheet 22 stretches into the annular groove 31, and a sealing ring 5 is tightly pressed between the annular pressing sheet 22 and the side wall of the annular groove 31. In this embodiment, the sealing gasket and the sealing ring 5 are made of rubber, and in actual operation, the sealing gasket and the sealing ring 5 may also be made of silica gel.
The gas density relay in this embodiment structural design is reasonable, gap between transparent apron 1 and inferior valve 3 is sealed through sealing washer, gap between with inferior valve 3 is sealed through sealing washer 5 simultaneously 2 and inferior valve 3, and through set up elastic gasket 6 between the annular fender edge 21 of last shell 2 and transparent apron 1, can provide stable downward elasticity for transparent apron 1 through elastic gasket 6, thereby compensate the activity that transparent apron 1 probably produced in the upper and lower direction, make transparent apron 1 closely paste with sealing washer throughout, further strengthen the leakproofness, thereby effectually guaranteed the sealing performance of shell, the performance of product has been promoted to a great extent.
Preferably, the diameter of the outer circumferential surface of the portion of the upper case 2 exposed to the outside is matched with the diameter of the outer circumferential surface of the lower case 2, thereby increasing the aesthetic appearance of the outer case.
In the density relay in this embodiment, when assembling, the elastic gasket 6, the transparent cover plate 1 and the sealing gasket are sequentially installed inside the upper shell 2, the indicating device is installed inside the lower shell 1, the sealing ring 5 is sleeved outside the lower shell 1, then the upper shell 2 and the lower shell 3 are assembled, the upper end of the lower shell 3 is inserted into the upper shell 2 during specific assembly, the sealing gasket is pressed on the lower part of the transparent cover plate 1 by the upper end periphery of the lower shell 3, then the lower end periphery of the upper shell 2 is pressed inwards to form the annular pressing piece 22, the annular pressing piece 22 is pressed in the annular groove 31 to realize the fixed connection between the upper shell 2 and the lower shell 3, and meanwhile, the gap between the annular pressing piece 22 and the annular groove 31 is sealed by the annular pressing piece 22 pressing the sealing ring 5, so that the upper shell 2 and the lower shell 3 are effectively connected and the sealing performance is ensured.
Referring to fig. 3 and 4, in order to increase the structural integrity of the upper shell 2 and the lower shell 3, the upper end periphery of the upper shell 2 is stamped and formed with the annular blocking edge 21; likewise, the lower case 3 is internally stamped to form the annular groove 31 outside the lower case 3 and to form the annular protrusion 32 inside the lower case 3, while setting the interval between the annular protrusion 32 and the annular stopper 21 to be not less than 1cm.
Further, in order to enhance the tightness between the upper case 2 and the lower case 3, the annular groove 31 is filled with a sealant 33, the lower edge of the annular pressing piece 22 is covered by the sealant 33, so that the gap between the annular groove 31 and the annular pressing piece 22 is sealed, the appearance aesthetic property of the outer case can be enhanced, and the sealant can be a common glass cement.
In order to increase the circumference of the upper end of the lower shell 3 and form effective pressing for the sealing gasket so as to ensure that the sealing gasket is pressed between the lower shell 3 and the transparent cover plate 4, the circumference of the upper end of the lower shell 3 is internally stamped to form an annular abutting part 34, the annular abutting part 34 is provided with an upper plane parallel to the transparent cover plate 1, the upper plane is abutted against the lower part of the sealing gasket, the upper plane has a larger pressing connection surface for the sealing gasket, and the pressing connection sealing effect is stable.
In a further technical scheme based on the above embodiment, the spring gasket 6 may be a corrugated gasket made of stainless steel, and the structure of the corrugated gasket is in the prior art, which is not described in detail in this embodiment; in order to avoid damage to the transparent cover plate 1 caused by contact between the elastic gasket 6 and the transparent cover plate 1, a rubber sheet may be disposed between the elastic gasket 6 and the transparent cover plate 1.
It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the utility model remain within the scope of the utility model.
Claims (8)
1. The fully-sealed environment-friendly gas density relay comprises a cylindrical shell, wherein the shell is formed by connecting a transparent cover plate (1), an upper shell (2) and a lower shell (3) which are sequentially arranged from top to bottom; the anti-blocking device is characterized in that the transparent cover plate (1) is arranged in the upper shell (2) and is blocked and limited by an annular blocking edge (21) at the upper end in the upper shell (2), a spring gasket (6) is arranged between the annular blocking edge (21) and the transparent cover plate (1), and a sealing gasket is arranged at the periphery of the lower part of the transparent cover plate (1); the periphery of the upper end of the lower shell (3) stretches into the upper shell (2) and is propped against the lower part of the sealing gasket, the periphery of the lower end of the upper shell (2) is inwards stamped to form an annular pressing sheet (22), an annular groove (31) is formed at the position, corresponding to the annular pressing sheet (22), of the outer part of the lower shell (3), the annular pressing sheet (22) stretches into the annular groove (31), and a sealing ring (5) is tightly pressed between the annular pressing sheet (22) and the side wall of the annular groove (31).
2. The fully-sealed environment-friendly gas density relay according to claim 1, wherein the annular blocking edge (21) is formed by stamping inwards the periphery of the upper end of the upper shell (2).
3. The fully-sealed environment-friendly gas density relay according to claim 2, wherein the lower shell (3) is internally stamped outside the lower shell (3) to form the annular groove (31) and inside the lower shell (3) to form an annular protrusion (32), and a distance between the annular protrusion (32) and the annular blocking edge (21) is not less than 1cm.
4. The fully sealed environment-friendly gas density relay according to claim 1, wherein the annular groove (31) is filled with a sealant (33), and the sealant (33) covers the lower edge of the annular pressing sheet (22).
5. The fully-sealed environment-friendly gas density relay according to claim 1, wherein an annular abutting portion (34) is formed by stamping inwards on the periphery of the upper end of the lower shell (3), the annular abutting portion (34) is provided with an upper plane parallel to the transparent cover plate (1), and the upper plane abuts against the lower part of the sealing gasket.
6. The fully-sealed environment-friendly gas density relay according to claim 1, wherein the spring gasket (6) is a corrugated gasket made of stainless steel.
7. The totally-enclosed environment-friendly gas density relay according to claim 1, wherein the transparent cover plate (1) is an acrylic plate or glass.
8. The fully-sealed environment-friendly gas density relay according to claim 1, wherein the sealing gasket and the sealing ring (5) are made of rubber or silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322039611.4U CN220627690U (en) | 2023-07-31 | 2023-07-31 | Fully-sealed environment-friendly gas density relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322039611.4U CN220627690U (en) | 2023-07-31 | 2023-07-31 | Fully-sealed environment-friendly gas density relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220627690U true CN220627690U (en) | 2024-03-19 |
Family
ID=90225706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322039611.4U Active CN220627690U (en) | 2023-07-31 | 2023-07-31 | Fully-sealed environment-friendly gas density relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220627690U (en) |
-
2023
- 2023-07-31 CN CN202322039611.4U patent/CN220627690U/en active Active
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