CN2881935Y - Connector base for gas density correction relay - Google Patents
Connector base for gas density correction relay Download PDFInfo
- Publication number
- CN2881935Y CN2881935Y CN 200520045890 CN200520045890U CN2881935Y CN 2881935 Y CN2881935 Y CN 2881935Y CN 200520045890 CN200520045890 CN 200520045890 CN 200520045890 U CN200520045890 U CN 200520045890U CN 2881935 Y CN2881935 Y CN 2881935Y
- Authority
- CN
- China
- Prior art keywords
- interface
- gas density
- way connection
- connection seat
- density relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a joint seat for inspecting gas density relays, which is a three-way joint seat. On the three-way joint seat, a through hole is provided in upright direction along the port of a second interface. The through hole is arranged in longitudinal direction and is communicated vertically with a first interface and the second interface. In another end of the through hole, an adjusting bar that is movable under outer force is provided. The adjusting bar comprises an adjusting end, a clamping board connected fixedly with the adjusting end, a piston connected fixedly with the clamping board. On the head of the piston, a gasket is fixed. A sealing washer is inset on the body of the piston. When the adjusting bar moves downward, the sealing gasket on the piston head of the adjusting bar will seal the hole which is communicated with the second interface of the three-way joint seat. The utility model allows inspecting or replacing a relay without dismounting or disengaging the gas density relay or the joint seat that is arranged on horizontal direction, brings convenience for electric maintenance persons, and ensures safe use of electric switches.
Description
Technical field
The utility model relates to the equipment that sulfur hexafluoride gas is carried out verification, more specifically refers to a kind of plinth that is used for the verification gas density relay.
Background technology
SF
6(sulphur hexafluoride) electric switch has been widely used in power department, industrial and mining enterprises, has promoted the fast development of power industry.How to guarantee SF
6The reliable and secure operation of electric switch has become one of vital task of power department.SF
6Gas density relay is SF
6One of key element of electric switch, it is used for detecting SF
6SF in the electric switch body
6The variation of gas density, its performance quality directly has influence on SF
6The reliable and secure operation of electric switch.Be installed on on-the-spot SF
6Gas density relay is because of often action, and the phenomenon of dumb or poor contact of contacts often appears moving in after date during through one section, and what have also the temperature-compensating degradation can occur, causes SF when variation of ambient temperature easily
6The gas density relay misoperation.Therefore original power portion has formulated DL/T596-1996 " power equipment preventive trial rules ".This testing regulations regulation: each SF
6The electric switch applying unit should be regularly to SF
6Gas density relay carries out verification.From practical operation situation, to the SF at scene
6It is to prevent trouble before it happens that gas density relay carries out periodic check, ensures one of necessary means of power equipment safety reliability service.And at the scene during verification, some SF
6The gas density relay plinth of electric switch adopts the form of non-return valve to connect, as shown in Figure 1.Verification at present or the density monitor 1 of changing this form switch just can only unload its three-way connection seat 2, it and Switch main body 3 are broken away from, that is: make non-return valve 41 and non-return valve 42 separately, because of non-return valve 41 is the non-return valves that seal automatically, can not leak gas on the body switch 3.Begin verification then or change relay.The relay 1 of traditional jointing seat institute verification usually and trunnion axis in vertical state, but in actual use, the direction that has a lot of relays 1 of wanting verification to settle often is a horizontal axis, is parallel with the source of the gas direction promptly.How relay for this horizontal installation direction carries out verification and replacing, and the structure that then must dock headstock is improved.
Summary of the invention
The purpose of this utility model is to provide a kind of plinth that is used for the verification gas density relay, utilize this plinth, can make the electric power overhaul personnel need not dismantle plinth, just can make things convenient for verification or replacing to the gas density relay that along continuous straight runs is installed, for electric power overhaul personnel's operation brings convenience, guarantee the safe handling of electric switch.
To achieve these goals, the utility model adopts following technical scheme:
This plinth that is used for the verification gas density relay is the three-way connection seat, gas density relay is fixedly connected on first interface of described three-way connection seat by screw rod and clamp nut, the electric switch body is connected on second interface of three-way connection seat by first non-return valve, connection one is used for second non-return valve of tonifying Qi on the 3rd interface of described three-way connection seat, wherein, described first interface and the 3rd interface form and are gas channels
Wherein
A through hole is vertically run through in aperture at three-way connection seat upper edge second interface, this through hole is vertical be provided with and with first interface, second interface is all vertical communicates, be provided with one in the other end of through hole and be subjected to movably adjusting rod of external force, this adjusting rod comprises regulates head, the clamp with this adjusting head flexible connection, the piston of fixedlying connected with this clamp, be fixed with sealing gasket on this piston head, be embedded sealing ring on this piston body, again, when this adjusting rod moved down, the aperture that the sealing gasket on its piston head and described three-way connection seat second interface are connected is involution mutually.
Described first interface is vertical mutually with gas channels between the 3rd interface, and second interface is vertical mutually with gas channels between the 3rd interface.
The fixedly connected seal cover in corresponding described adjusting rod outside on described three-way connection seat, sealing lid inboard is provided with a sealing ring, and the adjusting rod outside also is provided with a back-up ring.
Owing to adopted above-mentioned technical solution, particularly it is on the basis of traditional plinth, a through hole is vertically run through in aperture at three-way connection seat upper edge second interface, this through hole is vertical be provided with and with first interface, second interface is all vertical communicates, make the gas density relay that is arranged on horizontal direction also can carry out verification and replacing, during normal operating conditions, the sealing gasket of adjusting rod does not contact with the three-way connection seat, and the gas circuit of first non-return valve communicates with the gas density relay and second non-return valve.If want verification or change gas density relay, as long as adjusting rod is transferred to the end clockwise, at this moment, sealing gasket reliably contacts with the threeway seat.The gas circuit of first non-return valve does not communicate with the gas density relay and second non-return valve, is in the partition state, and gas density relay is cut off with Switch main body on gas circuit.And second non-return valve communicates on gas circuit with gas density relay.So just can utilize second non-return valve to come the verification gas density relay, equally also replaceable gas density relay.The utility model makes whole verification or changes in the process of relay, just need not dismantle the gas density relay that breaks away from the along continuous straight runs setting or plinth, for electric power overhaul personnel's operation brings convenience, guarantees the safe handling of electric switch.
Description of drawings
Fig. 1 is the structural representation of the plinth of traditional gas density relay;
Fig. 2 is the structural representation of the utility model plinth when being in normal operating conditions;
Fig. 3 is the structural representation of the utility model plinth when being in verification or changing gas density relay.
Embodiment
As shown in Figure 2, the utility model, promptly a kind of being convenient to SF
6SF in the electric switch
6The plinth of gas density relay verification, comprise three-way connection seat 2 ', this SF
6 Gas density relay 1 by screw rod 5 and clamp nut 6 be fixedly connected on described three-way connection seat 2 ' first interface 21 on, this SF
6 Electric switch body 3 is connected in by first non-return valve 4 on second interface 22 of three-way connection seat, connects second non-return valve 8 on the 3rd interface 23 of described three-way connection seat, and wherein: described first interface 21 and the 3rd interface 23 form gas channels.
A through hole is vertically run through in aperture at three-way connection seat 2 ' upper edge second interface 22, this through hole is vertical be provided with and with first interface 21, second interface 22 all vertically communicates, be provided with one in the other end of through hole and be subjected to movably adjusting rod 9 of external force, this adjusting rod 9 comprises regulates 91, regulate 91 clamp 92 that flexibly connect with this, the piston 93 of fixedlying connected with this clamp 92, be fixed with sealing gasket 931 on this piston head, be embedded sealing ring 932 and 933 on this piston body, again, when this adjusting rod 9 moves down, as shown in Figure 3, the aperture that is connected of the sealing gasket 931 on its piston head and described three-way connection seat second interface 22 involution mutually.
Three-way connection seat 2 ' on the fixedly connected seal cover 10 in corresponding described adjusting rod 9 outsides, sealing is covered 10 inboards and is provided with a sealing ring 7, adjusting rod 9 outsides also are provided with a back-up ring 11, and back-up ring 11 is placed in three-way connection seat 2 ' groove, play the screens effect during to adjusting rod 9 outer moving.Operation principle of the present utility model is: as shown in Figure 2, during normal operating conditions, the head of the adjusting of adjusting rod 9 91 flushes with back-up ring 11, promptly align with line EE, at this moment, sealing gasket 931 and three-way connection seat 2 ' do not contact, the gas circuit of first non-return valve 4 communicates with the gas density relay 1 and second non-return valve 8.Wherein: adjusting rod 9 and three-way connection seat 2 ' three seals is arranged, promptly seal gas circuit with sealing ring 932 and 933, increase sealing ring 7 and seal cover 10 again, guarantee positiver sealing, be in normal operating conditions.
If want verification or change the gas density relay 1 that horizontal direction is provided with, as long as back out seal cover 10 earlier, use the screwdriver of in-line then with spanner, adjusting rod 9 is transferred to the end clockwise, be in Fig. 3 state, at this moment, the head of piston 93 aligns with line FF.At this moment, sealing gasket 931 and three-way connection seat 2 ' reliably contact.The gas circuit of first non-return valve 4 does not communicate with the gas density relay 1 and second non-return valve 8, is in the partition state, and gas density relay 1 is cut off with Switch main body 3 on gas circuit.And second non-return valve 8 communicates on gas circuit with gas density relay 1.The gas density relay 1 that so just can utilize second non-return valve 8 to come the level check direction to be provided with, equally also replaceable gas density relay 1.
After verification or replacing gas density relay 1 finish,, adjusting rod 9 inhours are transferred to Fig. 2 state, that is: its head is flushed with back-up ring 11, promptly align, with spanner seal cover 10 is screwed on and tightened then and just can with line EE with the screwdriver of in-line.Whole like this verification or change in the relay process, just need not dismantle disengaging gas density relay 1 or three-way connection seat 2 '.For electric power overhaul personnel's operation brings convenience, guarantee SF
6The safe handling of electric switch.
Claims (3)
1. plinth that is used for the verification gas density relay, this plinth is the three-way connection seat, gas density relay is fixedly connected on first interface of described three-way connection seat by screw rod and clamp nut, the electric switch body is connected on second interface of three-way connection seat by first non-return valve, connection one is used for second non-return valve of tonifying Qi on the 3rd interface of described three-way connection seat, wherein, described first interface and the 3rd interface form and are gas channels, it is characterized in that:
A through hole is vertically run through in aperture at three-way connection seat upper edge second interface, this through hole is vertical be provided with and with first interface, second interface is all vertical communicates, be provided with one in the other end of through hole and be subjected to movably adjusting rod of external force, this adjusting rod comprises regulates head, the clamp with this adjusting head flexible connection, the piston of fixedlying connected with this clamp, be fixed with sealing gasket on this piston head, be embedded sealing ring on this piston body, again, when this adjusting rod moved down, the aperture that the sealing gasket on its piston head and described three-way connection seat second interface are connected is involution mutually.
2. the plinth that is used for the verification gas density relay according to claim 1 is characterized in that:
Described first interface (21) is vertical mutually with gas channels between the 3rd interface (23), and second interface (22) is vertical mutually with gas channels between the 3rd interface (23).
3. a kind of plinth that is used for the verification gas density relay according to claim 1 is characterized in that:
The fixedly connected seal cover in corresponding described adjusting rod outside on described three-way connection seat, sealing lid inboard is provided with a sealing ring, and the adjusting rod outside also is provided with a back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045890 CN2881935Y (en) | 2005-10-25 | 2005-10-25 | Connector base for gas density correction relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045890 CN2881935Y (en) | 2005-10-25 | 2005-10-25 | Connector base for gas density correction relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881935Y true CN2881935Y (en) | 2007-03-21 |
Family
ID=37881776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520045890 Expired - Lifetime CN2881935Y (en) | 2005-10-25 | 2005-10-25 | Connector base for gas density correction relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881935Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940039A (en) * | 2018-01-15 | 2018-04-20 | 国网江苏省电力有限公司南通供电分公司 | The new three-way connection seat for being used to connect gas gauge |
| CN112577785A (en) * | 2020-10-30 | 2021-03-30 | 温州职业技术学院 | SF6 density relay and SF6 air chamber connecting device convenient to overhaul |
-
2005
- 2005-10-25 CN CN 200520045890 patent/CN2881935Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940039A (en) * | 2018-01-15 | 2018-04-20 | 国网江苏省电力有限公司南通供电分公司 | The new three-way connection seat for being used to connect gas gauge |
| CN112577785A (en) * | 2020-10-30 | 2021-03-30 | 温州职业技术学院 | SF6 density relay and SF6 air chamber connecting device convenient to overhaul |
| CN112577785B (en) * | 2020-10-30 | 2023-03-24 | 温州职业技术学院 | SF6 density relay and SF6 air chamber connecting device convenient to overhaul |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Huaxia Industrial Co., Ltd. Assignor: Su Lifang Contract fulfillment period: 2008.10.16 to 2013.10.15 Contract record no.: 2008310000298 Denomination of utility model: Connector base for gas density correction relay Granted publication date: 20070321 License type: Exclusive license Record date: 20081218 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.16 TO 2013.10.15; CHANGE OF CONTRACT Name of requester: SHANGHAI HUASHA INDUSTRY CO.,LTD. Effective date: 20081218 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070321 |
|
| EXPY | Termination of patent right or utility model |