CN206516552U - A kind of double ground connection multistation disconnecting switch - Google Patents
A kind of double ground connection multistation disconnecting switch Download PDFInfo
- Publication number
- CN206516552U CN206516552U CN201720170815.3U CN201720170815U CN206516552U CN 206516552 U CN206516552 U CN 206516552U CN 201720170815 U CN201720170815 U CN 201720170815U CN 206516552 U CN206516552 U CN 206516552U
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- contact seat
- ground connection
- touch base
- side ground
- seat
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Abstract
The utility model discloses a kind of double ground connection multistation disconnecting switch, including connecting touch base, middle static contact seat, line side ground contact seat and bus bar side ground contact seat, connect on touch base, middle static contact seat, line side ground contact seat and bus bar side ground contact seat and be respectively arranged with fingertip, the fingertip connected on touch base and middle static contact seat is at least two groups；Also include the moving contact that can be in contact with above-mentioned each fingertip and for driving moving contact connecting the operating mechanism of back and forth movement between touch base, middle static contact seat, line side ground contact seat and bus bar side ground contact seat.The utility model sets multigroup touch base, pass through motion of the moving contact between each group touch base and the contact with the fingertip on each group touch base, multiple operating positions such as connection, isolation, line side ground connection and main bus-bar ground connection can be provided, so as to realize line side ground connection and main bus-bar ground connection respectively, simple in construction compact, simple operation is safe and reliable, it is with low cost, it is convenient for electric power overhaul ground connection.
Description
Technical field
The utility model belongs to electrical equipment, more particularly to a kind of double ground connection multistation disconnecting switch.
Background technology
, need to be in main bus-bar in transformer station or other electricity usage place interruption maintenances in order to ensure the safety of operating personnel
Carried out in the case of ground connection, conventional switchgear is passed through using the combining form of tri-station isolating switch and breaker at present
The break-make and circuit of switchgear are realized in connection, isolation, the operation of ground connection of the divide-shut brake and tri-station isolating switch of breaker
Side joint.Because the earthed switch of tri-station isolating switch close to breaker side can not realize that main bus-bar connects away from bus bar side
Ground, (not isolating segmentation cabinet for example) under many circumstances can only be realized by disconnecting the switch and hanging ground-wire of last voltage class
Main bus-bar is grounded, it will expand the influence of the scope and accident of interruption maintenance.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of double ground connection multistation disconnecting switch, sets multigroup touch
Seat, passes through motion of the moving contact between each group touch base and the contact with multigroup touch base, using the teaching of the invention it is possible to provide connection, isolation, circuit
Side joint and main bus-bar ground connection etc. multiple operating positions so that realize respectively line side ground connection and main bus-bar ground connection.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of double ground connection multistation disconnecting switch, including connect touch base, middle static contact seat, line side ground contact seat and mother
Set respectively on line side ground contact seat, the connection touch base, middle static contact seat, line side ground contact seat and bus bar side ground contact seat
The fingertip being equipped with fingertip, the connection touch base and the middle static contact seat is at least two groups；Also include to connect with described
Moving contact and use that fingertip on touch base, middle static contact seat, line side ground contact seat and bus bar side ground contact seat is in contact
Connected in driving the moving contact described between touch base, middle static contact seat, bus bar side ground contact seat and line side ground contact seat
The operating mechanism of back and forth movement.
In the above-mentioned technical solutions, set respectively and connect touch base, middle static contact seat, bus bar side ground contact seat and line side
Fingertip is provided with ground contact seat, each touch base, drives moving contact to be moved between each touch base by operating mechanism, makes
Contact is contacted with the fingertip on above-mentioned each touch base, and the difference formed by moving contact and the fingertip on each touch base contacts pass
System, you can multiple operating positions such as connection, isolation, line side ground connection and main bus-bar ground connection are provided respectively, it is simple in construction compact,
It is easy to operate, it is safe and reliable, facilitate electric power overhaul to be grounded, while also reducing cost.
As the further improvement of technical solutions of the utility model, the interior table of the connection touch base and the middle static contact seat
The prerotation vane of whole moving contact is provided through on face, the outer surface of moving contact is provided with guide groove, it is ensured that moving contact is straight along level
Line is moved and the good contact with the fingertip on each touch base.
It is used as the further improvement of technical solutions of the utility model, the connection touch base, middle static contact seat, bus bar side ground connection
Fingertip on touch base and line side ground contact seat is spring touch finger.Had many advantages, such as using spring touch finger：Simple in construction, body
The small, materials of product are few, cost is low, meet the requirement that bulk is reduced in electrical part design so that this pair ground connection multistation isolation
Switch geometry is compacter；Number of components can be reduced, simplifies the design that this pair is grounded each interface unit of multistation disconnecting switch；
Almost lossless connect can be achieved between spring touch finger and moving contact when carrying out station manipulation in the characteristics of Multi-contact, high concentrated force
Touch, it is ensured that larger current-carrying capacity；Good conductivity, dynamic thermal stability are high, improve the steady of this pair ground connection multistation disconnecting switch
It is qualitative；Because the contact of the contact point of each spring touch finger is not high, its silver coating has good when carrying out station manipulation
Wearability；The structure of spring touch finger possesses spacious and comfortable working range, increases this pair and is grounded multistation disconnecting switch at each
The adaptability of electric power scene.
As the further improvement of technical solutions of the utility model, the operating mechanism includes insulation screw mandrel, described dynamic tactile
Head and the insulation screw mandrel are connected by screw thread.The screw thread being engaged is provided with moving contact and insulation screw mandrel, with exhausted
The rotation of periphysis bar, the screw thread between insulation screw mandrel and moving contact produces relative movement, and driving moving contact is between each touch base
Operation, so that moving contact forms different contact relations from the fingertip on each touch base, and then provides connection, isolation, line
Multiple operating positions such as trackside ground connection and main bus-bar ground connection, this type of drive frictional resistance is small, and moving contact operates steadily.
As the further improvement of technical solutions of the utility model, the operating mechanism also includes actuating portion, the actuating
Engaged between portion and the insulation screw mandrel by the gear that is connected with the actuating portion and with the gear and with the insulation
The sprocket wheel of screw mandrel connection is driven, and so can easily drive insulation screw mandrel to rotate by rotating actuating portion, and then realize
The motion of moving contact.The synchronous rotary that transmission ensure that three phase isolated screw mandrel is carried out by gear and sprocket wheel, and then causes dynamic touch
Head is moved simultaneously, so as to realize three-phase synchronism, is further reduced frictional resistance, is improved the stationarity of overall operation.
As the further improvement of technical solutions of the utility model, the gear both sides are provided with bearing, prevent empire silk
The position of bar and gear shifts, so as to ensure the kinematic accuracy of moving contact.
As the further improvement of technical solutions of the utility model, electric blocking contact is provided with the operating mechanism,
Electric blocking contact meets " five prevent " and required, so when carrying out multiplexing bit manipulation, is easy to detect this pair ground connection multistation isolation
The electric state of circuit where switch, is grounded multistation disconnecting switch by this pair according to the different powered or dead electricity situation of circuit and grasps
Make to different operating positions.
As the further improvement of technical solutions of the utility model, this pair ground connection multistation disconnecting switch also includes gas tank,
The connection touch base, middle static contact seat, bus bar side ground contact seat, line side ground contact seat and moving contact are respectively positioned on the gas tank
It is interior, provide protective effect to each electric elements and circuit of its inside by gas tank.
As the further improvement of technical solutions of the utility model, the actuating portion, gear, sprocket wheel and bearing are located at institute
State outside gas tank, be convenient for multiplexing bit manipulation, the insulation screw mandrel is located at outside the gas tank close to the one end in the actuating portion, separately
One end is extended in the gas tank.
As the further improvement of technical solutions of the utility model, overlapped on the insulation screw mandrel with the shell of the gas tank
Place, which is provided with, to be provided with seal groove, the seal groove for by the sealing of the body seal of insulation screw mandrel and the gas tank
Circle, so as to ensure that there is good sealing in multistation operating process is carried out in gas tank；Gas tank can provide metastable
Internal environment is not influenceed by external operating environment, and inert gas or other can also be filled in gas tank has insulating effect
Content, further improve the insulating properties in electric elements and loop inside gas tank.
To sum up, a kind of double ground connection multistation disconnecting switch of the utility model are simple in construction compact, and simple operation safely may be used
Lean on, it is with low cost, in that context it may be convenient to carry out electric power overhaul ground connection.
Brief description of the drawings
The utility model is further detailed with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the partial enlarged drawing of seal groove in Fig. 1.
Embodiment
Figures 1 and 2 show that embodiment of the present utility model.
For sake of convenience, hereinafter the left and right direction of alleged " left side " " right side " with accompanying drawing in itself is consistent, but not to this reality
With new restriction effect.
As shown in figure 1, this pair ground connection multistation disconnecting switch includes connecting touch base 1, middle static contact seat 2, line side ground connection
Touch base 3 and bus bar side ground contact seat 4, touch base 1,2,3,4 are designed on the same line, are connected on touch base 1 and are provided with two groups of bullets
It is provided with spring fingertip 101, middle static contact seat 2 on two groups of spring touch fingers 201, line side ground contact seat 3 and is provided with spring touch finger
301, spring touch finger 401 is provided with bus bar side ground contact seat 4.This pair ground connection multistation disconnecting switch also include moving contact 5 with
And for driving the operating mechanism of the motion of moving contact 5, operating mechanism includes insulation screw mandrel 6, drive of the moving contact 5 in insulation screw mandrel 6
Moved under dynamic between connection touch base 1, middle static contact seat 2, bus bar side ground contact seat 4 and line side ground contact seat 3, so that with
Spring touch finger 101,201,301,401 is in contact, with the motion of moving contact 5, itself and the shape of spring touch finger 101,201,301,401
Into different contact relations.When moving contact 5 simultaneously with the spring touch finger 301 on line side ground contact seat 3 and centre static contact seat 2 on
Line side earthing position is in during one group of spring touch finger 201 contact in left side；Moving contact 5 simultaneously with two on middle static contact seat 2
Group spring touch finger 201 contacts or is in isolated location with connecting when two groups of spring fingertips 101 on touch base 1 are contacted simultaneously；When dynamic
The one group of fingertip 201 and one group of spring touch finger of the connection upper left side of touch base 1 of contact 5 simultaneously with the right side on middle static contact seat 2
On-position is in during 101 contact, when moving contact 5 is simultaneously with connecting one group of spring touch finger 101 and bus bar side on the right side of on touch base 1
Spring touch finger 401 on ground contact seat 4 is in main bus-bar earthing position when contacting.
The prerotation vane 7 and 8 of whole moving contact 5 is provided through on the inner surface for connecting touch base 1 and middle static contact seat 2, is moved
The outer surface of contact 5 be provided with guide groove, it is ensured that moving contact 5 along horizontal rectilinear motion and with each fingertip 101,201,301,401
Good contact.
The screw mandrel 6 that insulate is set with the straight line parallel where touch base 1,2,3,4, and phase is provided with moving contact 5 and insulation screw mandrel 6
The screw thread of cooperation, moving contact 5 and the insulation formation threaded connection of screw mandrel 6.Operating mechanism also includes actuating portion 9, can be with actuating portion 9
Actuating handle is set, is provided with gear 10 is connected with actuating portion 9 and is engaged with gear 10 between actuating portion 9 and insulation screw mandrel 6
Sprocket wheel, sprocket wheel is connected with insulation screw mandrel 6, and the both sides of gear 10 are provided with bearing 11, for example, can select deep groove ball bearing.
When this pair is grounded multistation isolator operation, actuating portion 9 is rotated, by gear 10 and chain gear transmission so as to drive
Insulation screw mandrel 6 is rotated；With the rotation of insulation screw mandrel 6, the screw thread between insulation screw mandrel 6 and moving contact 5 produces relative movement, this
Sample moving contact 5 just can along insulation screw mandrel 6 move so that between touch base 1,2,3,4 run, and then with touch base 1,2,3,4
Spring touch finger 101,201,301,401 be in contact, with the motion of moving contact 5, it is with spring touch finger 101,201,301,
401 form different contact relations, you can provide multiple working positions such as connection, isolation, line side ground connection and main bus-bar ground connection
Put, line side ground connection and main bus-bar ground connection are realized respectively.
When carrying out interruption maintenance, by the breaker open operation of outgoing line cabinet, driving moving contact 5 is run to isolated location；Drive again
Dynamic moving contact 5 is run to line side earthing position；Outgoing line side loop state is detected, outgoing line side loop dead electricity is confirmed；Operation open circuit
Device realizes that line side is grounded to closing position.
By the breaker open operation of incoming line cabinet, then moving contact 5 is driven to run to isolated location；Detect bus side loop shape
State, confirms bus side loop dead electricity, and driving moving contact 5 is run to main bus-bar earthing position, realizes that main bus-bar is grounded.
For the ease of the electric state of circuit where detecting this pair ground connection multistation disconnecting switch, set on operating mechanism
There is electric blocking contact, electric blocking contact meets " five prevent " and required, so that will according to the different powered or dead electricity situation of circuit
This pair is grounded multistation isolator operation to different operating positions.
In this embodiment, this pair ground connection multistation disconnecting switch also includes gas tank 14, and gas tank 14 can be adopted
It is made of stainless steel.Touch base 1,2,3,4 and spring touch finger 101,201,301,401 and moving contact 5 are respectively positioned in gas tank 14, behaviour
Dynamic portion 9, gear 10, sprocket wheel and bearing 11 are located at outside gas tank 14, and insulation screw mandrel 6 is located at gas tank 14 close to the one end in actuating portion 9
Outside, the other end is extended in gas tank 14.Gas tank 14 can provide protective effect to the electric elements and circuit of its inside.And enter
One step can set seal groove 12 in the shell overlapping position on screw mandrel 6 with gas tank 14 that insulate, and as shown in A in Fig. 1, Fig. 2 is figure
It is provided with 1 on the enlarged drawing of seal groove 12 shown in A, seal groove 12 for by the body seal of insulate screw mandrel 6 and gas tank 14
Sealing ring 13, can for example use O-ring seal, so ensure to have in gas tank 14 in multistation operating process is carried out good
Good sealing, gas tank 14 can also be filled while metastable internal environment is provided in gas tank 14 inert gas or
Other have the content of insulating effect to person, further improve the insulating properties in the inside electric elements of gas tank 14 and loop.
To sum up, this pair ground connection multistation disconnecting switch can provide connection, isolation, line side ground connection and main bus-bar ground connection
Multiple operating positions, line side ground connection and main bus-bar ground connection can be realized respectively, simple in construction compact, simple operation safely may be used
Lean on, it is with low cost, it is convenient for electric power overhaul ground connection.
The utility model is not limited to fingertip type and fingertip number on above-mentioned embodiment, such as touch base 1,2,3,4
Amount can be arranged as required to, and the type of the quantity and sealing ring 13 of seal groove 12 and sealing ring 13 can also be set as needed
Put, can also be as needed from different types of bearing 11 etc..
Further instruction, but the utility model have been carried out to the utility model above in conjunction with the drawings and specific embodiments
Above-mentioned embodiment is not limited to, in the knowledge that those of ordinary skill in the art possess, can also not taken off
Made a variety of changes on the premise of from the utility model objective.
Claims (10)
1. a kind of double ground connection multistation disconnecting switch, it is characterised in that including connecting touch base (1), middle static contact seat (2), circuit
Side ground contact seat (3) and bus bar side ground contact seat (4), the connection touch base (1), middle static contact seat (2), line side ground connection are touched
Fingertip (101 is respectively arranged with seat (3) and bus bar side ground contact seat (4)；201；301；401), it is described connection touch base (1) and
Fingertip (101 on the middle static contact seat (2)；201) it is at least two groups；Also including can be with the connection touch base (1), centre
Fingertip (101 on static contact seat (2), line side ground contact seat (3) and bus bar side ground contact seat (4)；201；301；401) connect
Tactile moving contact (5) and for driving the moving contact (5) in the connection touch base (1), middle static contact seat (2), bus bar side
The operating mechanism of back and forth movement between ground contact seat (4) and line side ground contact seat (3).
2. a kind of double ground connection multistation disconnecting switch according to claim 1, it is characterised in that the connection touch base (1)
With the prerotation vane (7 that whole moving contact (5) is provided through on the inner surface of the middle static contact seat (2)；8), moving contact (5)
Outer surface is provided with guide groove.
3. a kind of double ground connection multistation disconnecting switch according to claim 1 or 2, it is characterised in that the connection touch base
(1), the fingertip on middle static contact seat (2), bus bar side ground contact seat (4) and line side ground contact seat (3) is spring touch finger.
4. a kind of double ground connection multistation disconnecting switch according to claim 1, it is characterised in that the operating mechanism includes
Insulated screw mandrel (6), and the moving contact (5) and the insulation screw mandrel (6) are connected by screw thread.
5. a kind of double ground connection multistation disconnecting switch according to claim 4, it is characterised in that the operating mechanism is also wrapped
Include actuating portion (9), the gear between the actuating portion (9) and the insulation screw mandrel (6) by being connected with the actuating portion (9)
(10) and with the gear (10) engage and be driven with the sprocket wheel that the insulation screw mandrel (6) is connected.
6. a kind of double ground connection multistation disconnecting switch according to claim 5, it is characterised in that gear (10) both sides
It is provided with bearing (11).
7. the double ground connection multistation disconnecting switch of one kind according to any one of claim 4 to 6, it is characterised in that described
Electric blocking contact is provided with operating mechanism.
8. a kind of double ground connection multistation disconnecting switch according to claim 6, it is characterised in that also including gas tank (14),
The connection touch base (1), middle static contact seat (2), bus bar side ground contact seat (4), line side ground contact seat (3) and moving contact
(5) it is respectively positioned in the gas tank (14).
9. a kind of double ground connection multistation disconnecting switch according to claim 8, it is characterised in that the actuating portion (9), tooth
Take turns (10), sprocket wheel and bearing (11) and be located at the gas tank (14) outside, the insulation screw mandrel (6) is close to the actuating portion (9)
One end is located at the gas tank (14) outside, and the other end is extended in the gas tank (14).
10. a kind of double ground connection multistation disconnecting switch according to claim 9, it is characterised in that the insulation screw mandrel (6)
The upper shell overlapping position with the gas tank (14), which is provided with seal groove (12), the seal groove (12), to be provided with for by described in
The sealing ring (13) of insulation screw mandrel (6) and the body seal of the gas tank (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720170815.3U CN206516552U (en) | 2017-02-24 | 2017-02-24 | A kind of double ground connection multistation disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720170815.3U CN206516552U (en) | 2017-02-24 | 2017-02-24 | A kind of double ground connection multistation disconnecting switch |
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| Publication Number | Publication Date |
|---|---|
| CN206516552U true CN206516552U (en) | 2017-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720170815.3U Active CN206516552U (en) | 2017-02-24 | 2017-02-24 | A kind of double ground connection multistation disconnecting switch |
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| Country | Link |
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| CN (1) | CN206516552U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993419A (en) * | 2019-12-31 | 2020-04-10 | 任广民 | Six-station low-voltage combination switch |
| CN111130004A (en) * | 2020-02-19 | 2020-05-08 | 正泰电气股份有限公司 | Gas insulation switch cabinet |
| CN112038156A (en) * | 2020-06-22 | 2020-12-04 | 平高集团有限公司 | Double-fracture isolating switch and high-voltage line connecting structure |
| CN113281644A (en) * | 2021-05-27 | 2021-08-20 | 深圳供电局有限公司 | Detection method for preventing live isolation switch from being closed to grounding equipment |
-
2017
- 2017-02-24 CN CN201720170815.3U patent/CN206516552U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993419A (en) * | 2019-12-31 | 2020-04-10 | 任广民 | Six-station low-voltage combination switch |
| CN111130004A (en) * | 2020-02-19 | 2020-05-08 | 正泰电气股份有限公司 | Gas insulation switch cabinet |
| CN112038156A (en) * | 2020-06-22 | 2020-12-04 | 平高集团有限公司 | Double-fracture isolating switch and high-voltage line connecting structure |
| CN112038156B (en) * | 2020-06-22 | 2023-02-17 | 平高集团有限公司 | Double-fracture isolating switch and high-voltage line connecting structure |
| CN113281644A (en) * | 2021-05-27 | 2021-08-20 | 深圳供电局有限公司 | Detection method for preventing live isolation switch from being closed to grounding equipment |
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