CN201237556Y - Multicenter joint seat for checking gas density relay - Google Patents
Multicenter joint seat for checking gas density relay Download PDFInfo
- Publication number
- CN201237556Y CN201237556Y CNU2008201500796U CN200820150079U CN201237556Y CN 201237556 Y CN201237556 Y CN 201237556Y CN U2008201500796 U CNU2008201500796 U CN U2008201500796U CN 200820150079 U CN200820150079 U CN 200820150079U CN 201237556 Y CN201237556 Y CN 201237556Y
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- CN
- China
- Prior art keywords
- air
- hole
- gas density
- density relay
- plinth
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- 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 - Fee Related
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Abstract
The utility model relates to a device for checking sulphur hexa fluoride gas density relay, concretely relating to a multichannel plinth applied to a relay for checking gas density; the plinth is communicated with the gas density relay and a switch body; within the plinth, an adjustable lever is arranged, and also an air cavity and a plurality of holes communicated with the air cavity; the holes are, respectively, an air inlet, a vent communicated with the gas density relay and a detection hole for detection; the vent is communicated with the detection hole; the adjustable lever can move inside and outside and can seal an orifice leading to the air inlet communicating the detection hole and the vent; 1-3 air inlets are arranged which are placed on one or a plurality of surfaces of the plinth and are communicated with the air cavity. The device for checking sulphur hexa fluoride gas density relay brings convenience for power maintenance personnel to operate.
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 multi-way joint seat that is used for the verification gas density relay.
Background technology
SF
6(sulfur 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 compensation 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 reverse checkvalve to connect.Verification at present or the density monitor of changing this form switch just can only unload its three-way connection seat, and it and Switch main body are broken away from, that is: make reverse checkvalve and reverse checkvalve separately, because of reverse checkvalve is the automatic reverse checkvalve that seals, can not leak gas on the body switch.Begin verification then or change relay.In addition the relay of traditional jointing seat institute verification usually with transverse axis in vertical state, but in actual use, the direction that also has the relay of much verifications of wanting 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.
In order to address the above problem, the applicant once provided two kinds of street corner seats (seeing Chinese patent application 200520045890.4 and 200520045891.9) that are used for the verification gas density relay, and this plinth can address the above problem, for maintenance brings convenience.But also there is the user to reflect, because field condition varies, if any plural air intake opening or gas supplementing opening, this technical scheme then can not be dealt with.
The utility model content
The purpose of this utility model is to provide a kind of multi-way joint seat that is used for the verification gas density relay, utilize this plinth, not only can make the electric power overhaul personnel need not dismantle plinth, and can satisfy customer requirement, under the field condition that varies, use.
To achieve these goals, the utility model adopts following technical scheme:
A kind of multi-way joint seat that is used for the verification gas density relay, it is connected with gas density relay and Switch main body, comprise an adjuster bar in the described plinth, also comprise an air cavity and several holes that are communicated with air cavity in the plinth, they are respectively air admission hole, air hole that is communicated with gas density relay and the detection hole that is used to detect, described air hole communication with detection hole, inside and outside the moving also of described adjuster bar energy can be led to the aperture of detecting hole and air hole connection at the described air admission hole of air cavity inner sealing, it is characterized in that: described air admission hole has 1-3, they be arranged on that one or more of plinth go up and and described air cavity be communicated with;
Described adjuster bar is to be subjected to external force movably, this adjuster bar head is provided with sealing gasket, is embedded O-ring seal on this adjuster bar body of rod, again, when this adjuster bar moved inward, the sealing gasket on it sealed mutually with the total air admission hole of described plinth air cavity or the aperture of total venthole;
The fixedly connected gland bonnet in corresponding described adjuster bar outside on described plinth, sealing lid inboard is provided with an O-ring seal, and the adjuster bar outside also is provided with a back-up ring;
Detection hole on the described plinth is tightly connected mutually with test reverse checkvalve or test splice.
Described air admission hole is at the synthetic overall channel of joint pedestal internal exchange and be communicated to air cavity, and when described adjuster bar was moved into maximum position, its end face sealed mutually with the overall channel inlet of air admission hole.
Described air hole is at the synthetic overall channel of joint pedestal internal exchange and be communicated with air cavity, and when described adjuster bar was moved into maximum position, its end face sealed mutually with the outlet that the overall channel of air hole is communicated with air cavity.
Described detection hole is converged back with an overall channel or direct and air cavity and the connection of gas density relay air hole in plinth.
Described detection hole has 1-3, and they are communicated with air hole by air cavity.
Owing to adopted above-mentioned technical solution, that is: during normal operating conditions, the sealing gasket of adjuster bar is not contact with total air admission hole or total venthole of plinth, and the gas circuit of all air admission holes communicates with gas density relay air hole and detection hole; If want verification or change gas density relay, as long as adjuster bar is transferred to the end clockwise, at this moment, sealing gasket reliably contacts with the total air admission hole of plinth air cavity or the aperture of total venthole, the gas circuit of all air admission holes does not communicate with gas density relay air hole and detection hole, be in the partition state, gas density relay is cut off with Switch main body on gas circuit.On gas circuit, communicate with the gas density relay air hole and detect the hole.So just can utilize the detection hole to come the verification gas density relay, equally the also replaceable gas density relay of this state.So, the utility model not only makes whole verification or changes in the process of relay, need not dismantle gas density relay or plinth,, guarantee the safe handling of electric switch for electric power overhaul personnel's operation brings convenience, and owing to adopted above-mentioned technical solution, the utility model can multichannel air inlet, airintake direction or detection side are to, relay installation direction variation, can fully satisfy various requirement of client according to the field condition flexible Application.
Description of drawings
Fig. 1 is a kind of in running order synoptic diagram of multi-way joint seat that is used for the verification gas density relay of the utility model;
Fig. 2 is that a kind of multi-way joint seat that is used for the verification gas density relay of the utility model is in the verification view;
Fig. 3 is the cut-open view of the utility model embodiment two;
Fig. 4 is the cut-open view of the utility model embodiment three;
Fig. 5 is the cut-open view of the utility model embodiment four;
Fig. 6 is the cut-open view of the utility model embodiment five;
Fig. 7 is the cut-open view of the utility model embodiment six;
Fig. 8 is the cut-open view of the utility model embodiment seven;
Fig. 9 is the cut-open view of the utility model embodiment eight;
Figure 10 is the cut-open view of the utility model embodiment nine;
Figure 11 is the cut-open view of the utility model embodiment ten.
Embodiment
As depicted in figs. 1 and 2, a kind of multi-way joint seat that is used for the verification gas density relay, it is connected with gas density relay 13 and Switch main body 12.Comprise an adjuster bar 9 in the described plinth 1, also comprise an air cavity 11 and several holes that are communicated with air cavity 11 in the plinth 1, they are respectively air hole 4, detect hole 5 and some air admission holes, air admission hole can have 1,2 or 3, present embodiment is 2, be respectively air admission hole 31,32, on two faces that are communicated with air cavity 11 that they are arranged on plinth 1, and in plinth 1 body, merge into an overall channel 30 (being total air admission hole) and be communicated to air cavity 11, when adjuster bar 9 was moved into maximum position, its end face can be the overall channel 30 inlet sealings of air admission hole.Switch main body 12 is communicated with any one of air admission hole 31,32 respectively; Air hole 4 is by air cavity 11 communication with detection holes 5; Adjuster bar 9 comprises the sealing gasket 931 on it, the O-ring seal 932 that is embedded on its body of rod and 933 (at least one), and again, when this adjuster bar 9 moved inward, the aperture of the sealing gasket 931 on it and the overall channel 30 of described plinth air admission hole is involution mutually.The fixedly connected gland bonnet 10 in corresponding adjuster bar 9 outsides on plinth 1, sealing is covered 10 inboards and is provided with an O-ring seal 7, and adjuster bar 9 outsides also are provided with a back-up ring 11 ', and back-up ring 11 ' is placed in plinth 1 groove, plays the screens effect during to adjuster bar 9 outer moving.Detection hole 5 on the described plinth is connected with test reverse checkvalve 8 (or test splice), and at when operation positiver sealing.
During its normal operating conditions, the afterbody of adjuster bar 9 flushes with back-up ring 11 ', promptly align with line EE, at this moment, sealing gasket 931 does not contact with overall channel 30 apertures of plinth 1 air admission hole, and the gas circuit of switch air inlet communicates with the test reverse checkvalve 8 that gas density relay air hole 4 and detection hole 5 communicate.Wherein: 1 of adjuster bar 9 and plinth have three seals, promptly seal gas circuit with O- ring seal 932 and 933, increase O-ring seal 7 and gland bonnet 10 again, guarantee positiver sealing, are in the normal operation state, i.e. Fig. 1.
If want verification or change gas density relay 13, as long as back out gland bonnet 10 earlier, use the screwdriver of in-line then with spanner, adjuster bar 9 is transferred to the end clockwise, be in state shown in Figure 2, at this moment, the head of adjuster bar 9 aligns with line FF.At this moment, sealing gasket 931 reliably contacts with overall channel 30 apertures of plinth 1 air admission hole.The gas circuit of Switch main body 12 all air inlets does not communicate with the test reverse checkvalve 8 that gas density relay 13 air holes 4 and detection hole 5 communicate, and is in the partition state, and gas density relay 13 is cut off with Switch main body 12 on gas circuit.And test reverse checkvalve 8 communicates on gas circuit with gas density relay 13 air holes, i.e. Fig. 2.So just can utilize test reverse checkvalve 8 to come verification gas density relay 13, equally the also replaceable gas density relay 13 of this state.
After verification or replacing gas density relay 13 finish, use a screwdriver, adjuster bar 9 inhours are transferred to Fig. 1 state, that is: its afterbody is flushed with back-up ring 11 ', promptly align, with spanner gland bonnet 10 is screwed on and tightened then and just can with line EE.In whole like this verification or the replacing relay process, disengaging gas density relay 13 or plinth 1 just need not have been dismantled.For electric power overhaul personnel's operation brings convenience, guarantee SF
6The safe handling of electric switch.
In the utility model, various connectivity structure can be taked in each duct, specifically is listed as each embodiment as follows:
Embodiment two as shown in Figure 3, described gas density relay air hole 4 direct communication with detection holes 5, adjuster bar 9 can seal the inlet that air admission hole leads to air cavity 11;
Embodiment three as shown in Figure 4, detecting hole 5 is to be communicated with by air cavity 11 air holes 4, adjuster bar 9 can seal the inlet that air admission hole leads to air cavity 11;
Embodiment four as shown in Figure 5, it detects hole 5, air hole 4 and air admission hole 31 is to be communicated to air cavity 11 separately, adjuster bar 9 can seal the inlet that air admission hole leads to air cavity 11;
Described air admission hole 3 also can have a plurality of, as Fig. 6, shown in Figure 7, in embodiment five and embodiment six, described air admission hole has two, i.e. 31 among the figure and 32, they are arranged on each different surface of plinth 1 and air cavity 11 connections equally, and merge into an overall channel 30 (being total air admission hole) in plinth 1 body, are communicated with gas density relay air holes 4 by air cavity 11.Adjuster bar 9 can seal total air intake opening.
Embodiment seven detects hole 5 and air hole 4 and overlaps fully together as shown in Figure 8, and gas density relay and test reverse checkvalve (or test splice) separate in the outside in this hole again;
Embodiment eight as shown in Figure 9, because plinth 1 has a plurality of surfaces, detection hole 5, air hole 4, air admission hole can be located at different surfaces separately, air hole 4 does not pass through air cavity 11 but direct communication with detection hole 5, air admission hole 31,32 is located at two apparent surfaces of plinth 1 respectively, be communicated with air cavity 11 separately, and adjuster bar 9 sealings is to detect total gas outlet that hole 5 is communicated with air cavity.
Embodiment nine as shown in figure 10, wherein, adjuster bar 9 sealing air admission holes 31 (also can be the overall channel that some air admission holes converge) are communicated with the aperture on the surface of air cavitys 11, are communicated with air holes 4 and detect hole 5 by air cavity 11.
Embodiment ten as shown in figure 11, when air admission hole has two, as being oppositely arranged and directly being communicated with 31 and 32 of air cavity 11 separately among the figure.Detect hole 5 and also be communicated with air cavity 11, adjuster bar 9 can seal its total gas outlet together with air cavity 11, and air hole 4 direct communication with detection holes 5.
Can see from above-mentioned many embodiment, the utility model can change and more embodiment, therefore, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating claim of the present utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (5)
1. multi-way joint seat that is used for the verification gas density relay, it is connected with gas density relay and Switch main body, comprise an adjuster bar in the described plinth, also comprise an air cavity and several holes that are communicated with air cavity in the plinth, they are respectively air admission hole, air hole that is communicated with gas density relay and the detection hole that is used to detect, described air hole communication with detection hole, inside and outside the moving also of described adjuster bar energy can be led to the aperture of detecting hole and air hole connection at the described air admission hole of air cavity inner sealing, it is characterized in that: described air admission hole has 1-3, they be arranged on that one or more of plinth go up and and described air cavity be communicated with;
Described adjuster bar is to be subjected to external force movably, this adjuster bar head is provided with sealing gasket, is embedded O-ring seal on this adjuster bar body of rod, again, when this adjuster bar moved inward, the sealing gasket on it sealed mutually with the total air admission hole of described plinth air cavity or the aperture of total venthole;
The fixedly connected gland bonnet in corresponding described adjuster bar outside on described plinth, sealing lid inboard is provided with an O-ring seal, and the adjuster bar outside also is provided with a back-up ring;
Detection hole on the described plinth is tightly connected mutually with test reverse checkvalve or test splice.
2. the multi-way joint seat that is used for the verification gas density relay according to claim 1, it is characterized in that: described air admission hole is at the synthetic overall channel of joint pedestal internal exchange and be communicated to air cavity, when described adjuster bar was moved into maximum position, its end face sealed mutually with the overall channel inlet of air admission hole.
3. the multi-way joint seat that is used for the verification gas density relay according to claim 1 and 2, it is characterized in that: described air hole is at the synthetic overall channel of joint pedestal internal exchange and be communicated with air cavity, when described adjuster bar was moved into maximum position, its end face sealed mutually with the outlet that the overall channel of air hole is communicated with air cavity.
4. the multi-way joint seat that is used for the verification gas density relay according to claim 3 is characterized in that: described detection hole is converged back with an overall channel or direct and air cavity and the connection of gas density relay air hole in plinth.
5. the multi-way joint seat that is used for the verification gas density relay according to claim 3 is characterized in that: described detection hole has 1-3, and they are communicated with air hole by air cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201500796U CN201237556Y (en) | 2008-06-26 | 2008-06-26 | Multicenter joint seat for checking gas density relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201500796U CN201237556Y (en) | 2008-06-26 | 2008-06-26 | Multicenter joint seat for checking gas density relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201237556Y true CN201237556Y (en) | 2009-05-13 |
Family
ID=40650290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201500796U Expired - Fee Related CN201237556Y (en) | 2008-06-26 | 2008-06-26 | Multicenter joint seat for checking gas density relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201237556Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103366995A (en) * | 2013-08-02 | 2013-10-23 | 上海乐研电气科技有限公司 | Forming method for assembling connector of gas density relay capable of preventing misoperation |
| CN114544873A (en) * | 2022-02-18 | 2022-05-27 | 天地（常州）自动化股份有限公司 | Gas probe protection structure |
-
2008
- 2008-06-26 CN CNU2008201500796U patent/CN201237556Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103366995A (en) * | 2013-08-02 | 2013-10-23 | 上海乐研电气科技有限公司 | Forming method for assembling connector of gas density relay capable of preventing misoperation |
| CN103366995B (en) * | 2013-08-02 | 2015-03-25 | 上海乐研电气科技有限公司 | Forming method for assembling connector of gas density relay capable of preventing misoperation |
| CN114544873A (en) * | 2022-02-18 | 2022-05-27 | 天地（常州）自动化股份有限公司 | Gas probe protection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |