Stainless steel sealing shell for sulfur hexafluoride switch

Abstract

The utility model discloses a stainless steel sealing shell for a sulfur hexafluoride switch. The stainless steel sealing shell comprises a sulfur hexafluoride switch shell and a sealing assembly, the sulfur hexafluoride switch shell comprises an upper shell and a lower shell at the upper end and the lower end; the sealing assembly comprises an upper sealing opening and a lower sealing opening which are formed in the inner ends of the upper shell and the lower shell respectively. According to the stainless steel sealing shell for the sulfur hexafluoride switch, an inner sealing gasket is arranged in an inner-layer lower sealing port at the upper end of a lower shell in the sulfur hexafluoride switch shell, a middle sealing gasket is arranged in a middle-layer middle sealing port, and an outer sealing gasket is arranged in an outer-layer outer sealing port; through tight pressing of an upper sealing opening, a middle pressing frame and an outer pressing frame at the bottom of the upper shell body, good sealing performance of the sulfur hexafluoride switch shell after the upper shell body and the lower shell body are closed is guaranteed through a three-layer sealing pressing structure of an inner layer, a middle layer and an outer layer after the upper shell body and the lower shell body are closed. Therefore, the problem of leakage in use is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfur hexafluoride switch housings, in particular to a stainless steel sealed housing for a sulfur hexafluoride switch. Background Art

[0002] The sulfur hexafluoride switch housing is an important component of the sulfur hexafluoride circuit breaker. It mainly serves to encapsulate and protect internal components, ensuring the stable operation of the equipment in complex environments. The sulfur hexafluoride switch housing is usually made of high-strength, corrosion-resistant materials, such as metal alloys, to withstand the pressure of internal sulfur hexafluoride gas and the erosion of the external environment. It tightly encapsulates all key components of the circuit breaker, such as vacuum circuit breaker, operating mechanism, arc extinguishing device, etc., ensuring that these components operate in a sealed environment to avoid external contamination and interference.

[0003] In existing sulfur hexafluoride switch housings, after the upper and lower housings are closed, the upper and lower housings are mostly sealed directly by a single sealing gasket compressed at the inner end. This sealing structure is inconvenient to ensure the long-term sealing effect of the sulfur hexafluoride switch housing during use and the sealing effect in harsh environments. Therefore, we propose a stainless steel sealed housing for sulfur hexafluoride switches. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A stainless steel sealed housing for a sulfur hexafluoride switch comprises: a sulfur hexafluoride switch housing and a sealing assembly; the sulfur hexafluoride switch housing comprises an upper housing and a lower housing at its upper and lower ends; the sealing assembly comprises an upper sealing opening and a lower sealing opening respectively provided at the inner ends of the upper housing and the lower housing, an inner sealing gasket movably mounted in the lower sealing opening, a middle sealing opening provided in the lower housing outside the lower sealing opening, a middle sealing gasket movably mounted at the bottom of the middle sealing opening, an outer sealing opening provided at the outer end of the lower housing, and an outer sealing gasket movably mounted at the outer end of the outer sealing opening.

[0007] Preferably, a middle pressing frame is fixedly mounted on the bottom of the upper shell, and the middle pressing frame is movably mounted in the middle sealing opening.

[0008] Preferably, an outer pressing frame is fixedly mounted on the outer side of the bottom of the upper shell, and the outer pressing frame is movably mounted in the outer sealing opening.

[0009] Preferably, the outer end of the outer sealing gasket and the inner end of the outer compression frame are both provided with oblique openings.

[0010] Preferably, the upper sealing opening and the lower sealing opening have the same structure.

[0011] Preferably, the inner sealing gasket, the middle sealing gasket and the outer sealing gasket are all frame-shaped.

[0012] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0013] In the utility model, the inner sealing gasket installed in the lower sealing opening of the inner layer at the upper end of the lower shell in the sulfur hexafluoride switch housing, the middle sealing gasket installed in the middle sealing opening of the middle layer, and the outer sealing gasket installed in the outer sealing opening of the outer layer are respectively tightly pressed by the upper sealing opening at the bottom of the upper shell, the middle pressing frame, and the outer pressing frame. Therefore, the three-layer sealing and pressing structure of the inner layer, the middle layer, and the outer layer is formed after the upper shell and the lower shell are closed, so as to ensure good sealing of the upper shell and the lower shell in the sulfur hexafluoride switch housing after they are closed, thereby reducing the problem of leakage during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structural diagram of the utility model;

[0015] Figure 2 It is a side sectional view of the utility model;

[0016] Figure 3 For this utility model Figure 2 A magnified view of middle A;

[0017] Figure 4 This is a disassembly diagram of the upper shell and lower shell of the utility model.

[0018] Reference numerals:

[0019] 100. Sulfur hexafluoride switch housing; 101. Upper housing; 102. Lower housing;

[0020] 200, sealing assembly; 201, upper sealing port; 202, lower sealing port; 203, inner sealing gasket; 204, middle sealing port; 205, middle sealing gasket; 206, outer sealing port; 207, outer sealing gasket; 208, middle pressing frame; 209, outer pressing frame; 210, oblique opening. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0022] The following describes a stainless steel sealed housing for a sulfur hexafluoride switch provided by some embodiments of the present invention in conjunction with the accompanying drawings.

[0023] Example 1:

[0024] Combine Figure 1-4As shown, the utility model provides a stainless steel sealed housing for a sulfur hexafluoride switch, comprising: a sulfur hexafluoride switch housing 100, a sealing assembly 200; the sulfur hexafluoride switch housing 100 comprises an upper housing 101 and a lower housing 102 at its upper and lower ends; the sealing assembly 200 comprises an upper sealing opening 201 and a lower sealing opening 202 respectively opened at the inner ends of the upper housing 101 and the lower housing 102, an inner sealing gasket 203 movably installed in the lower sealing opening 202, a middle sealing opening 204 opened in the lower housing 102 outside the lower sealing opening 202, a middle sealing gasket 205 movably installed at the bottom of the middle sealing opening 204, and the lower housing 101. 2, an outer sealing opening 206 is opened at the outer end, and an outer sealing gasket 207 is movably installed at the outer end of the outer sealing opening 206. A middle pressing frame 208 is also fixedly installed at the bottom of the upper shell 101, and the middle pressing frame 208 is movably installed in the middle sealing opening 204. An outer pressing frame 209 is also fixedly installed on the outer side of the bottom of the upper shell 101, and the outer pressing frame 209 is movably installed in the outer sealing opening 206. An outer end of the outer sealing gasket 207 and an inner end of the outer pressing frame 209 are also opened with an oblique opening 210. The upper sealing opening 201 and the lower sealing opening 202 have the same structure. The inner sealing gasket 203, the middle sealing gasket 205 and the outer sealing gasket 207 are all frame-shaped.

[0025] Specifically, the sulfur hexafluoride switch housing 100 is an important component of the sulfur hexafluoride circuit breaker. It mainly plays the role of encapsulating and protecting internal components to ensure the stable operation of the equipment in a complex environment. In the sulfur hexafluoride switch housing 100, the inner sealing gasket 203 installed in the lower sealing opening 202 at the upper end of the lower housing 102, the middle sealing gasket 205 installed in the middle sealing opening 204, and the outer sealing gasket 207 installed in the outer sealing opening 206 of the outer layer are respectively located at the upper sealing opening 201 and the middle sealing opening 204 at the bottom of the upper housing 101. The compression frame 208 and the outer compression frame 209 are tightly pressed together, so that the three-layer sealing and compression structure of the inner layer, the middle layer and the outer layer is formed after the upper shell 101 and the lower shell 102 are closed, so as to ensure good sealing of the upper shell 101 and the lower shell 102 in the sulfur hexafluoride switch housing 100 after they are closed, so as to reduce the problem of leakage during use. The outer end of the outer sealing gasket 207 is matched with the inner end of the outer compression frame 209 to open the oblique opening 210, which is mainly used to ensure the compression effect when the outer compression frame 209 presses the outer sealing gasket 207.

[0026] The working principle and use process of this utility model:

[0027] When the upper shell 101 and the lower shell 102 are closed, the inner sealing gasket 203, the middle sealing gasket 205 and the outer sealing gasket 207 are first installed into the lower sealing port 202, the middle sealing port 204 and the outer sealing port 206 on the lower shell 102 respectively. After the three sets of sealing gaskets are positioned and installed, the upper shell 101 can be installed to the upper end of the lower shell 102 and locked. When the upper shell 101 and the lower shell 102 are locked, the inner sealing gasket 203 of the inner layer will be pressed between the upper sealing port 201 and the lower sealing port 202, the middle sealing gasket 205 of the middle layer will be pressed to the bottom by the middle pressing frame 208, and the outer sealing gasket 207 of the outer layer will be pressed against the outer pressing frame 209 through the oblique opening 210, thereby forming an inner, middle and outer three-layer sealing structure between the upper shell 101 and the lower shell 102 to ensure a good sealing effect between the upper shell 101 and the lower shell 102.

[0028] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A stainless steel sealed housing for a sulfur hexafluoride switch, characterized in that: include: Sulfur hexafluoride switch housing (100), sealing assembly (200); The sulfur hexafluoride switch housing (100) comprises an upper housing (101) and a lower housing (102) at its upper and lower ends; The sealing assembly (200) comprises an upper sealing opening (201) and a lower sealing opening (202) respectively provided at the inner ends of the upper shell (101) and the lower shell (102), an inner sealing gasket (203) movably installed in the lower sealing opening (202), a middle sealing opening (204) provided in the lower shell (102) outside the lower sealing opening (202), a middle sealing gasket (205) movably installed at the bottom of the middle sealing opening (204), an outer sealing opening (206) provided at the outer end of the lower shell (102), and an outer sealing gasket (207) movably installed at the outer end of the outer sealing opening (206).

2. The stainless steel sealed housing for a sulfur hexafluoride switch according to claim 1, characterized in that: A middle pressing frame (208) is also fixedly mounted on the bottom of the upper shell (101), and the middle pressing frame (208) is movably mounted in the middle sealing opening (204).

3. The stainless steel sealed housing for a sulfur hexafluoride switch according to claim 1, characterized in that: An external pressing frame (209) is also fixedly mounted on the outer side of the bottom of the upper shell (101), and the external pressing frame (209) is movably mounted in the external sealing opening (206).

4. The stainless steel sealed housing for a sulfur hexafluoride switch according to claim 1, characterized in that: The outer end of the outer sealing pad (207) and the inner end of the outer compression frame (209) are both provided with an oblique opening (210).

5. The stainless steel sealed housing for a sulfur hexafluoride switch according to claim 1, characterized in that: The upper sealing opening (201) and the lower sealing opening (202) have the same structure.

6. The stainless steel sealed housing for a sulfur hexafluoride switch according to claim 1, characterized in that: The inner sealing gasket (203), the middle sealing gasket (205) and the outer sealing gasket (207) are all frame-shaped.

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