CN1229834C - Switch - Google Patents

Abstract

A switch, wherein an encased zero-phase current transformer (36) and a cut-off relay (37) are fitted into the inside edges of both bushings (21, 22). Between each of the zero phase sequence current transformer (36) and the cut-off relay (37) and an unit casing, an elastic pressing element (31c) is provided that presses both the zero phase sequence current transformer (36) and the cut-off relay (37) in the inside direction of the casing. The movement of the zero phase sequence current transformer (36) and the cut-off relay (37) toward the inside of the casing is restricted by an insulating barrier (41). This structure makes it unnecessary to set screws into the inside surface of the casing and improve withstand voltage between the switch and ground.

Description

Switch

Technical field

The present invention relates to a kind of for example switch of build-in components such as zero phase sequence currenttransformer and cut-out relay that has.

Background technology

In the past, be to run through the sleeve pipe the inner that is supported on the switch main cartridge two side as switch build-in components such as zero phase sequence currenttransformers to place state in the fastening cover to be intercalated in.Fastening cover inserts the upright bolt of being located on the switch main cartridge medial surface, and bolt tightens nut, thus fastening cover is fixed on the main cartridge.But in the past switch with the build-in components supporting structure in, the bolt that fixing build-in components is used must be set on the main cartridge medial surface.Exist the insulation distance between bolt top and cannula tip electrode part to shorten the problem that withstand voltage descends between ground connection thus.

Be provided with fixed electrode and movable electrode running through each the phase cannula tip that is supported on the main cartridge two side again.Known existing a kind of switch has insulating element, and described insulating element carries out insulation between alternate and ground connection by coat its fixed electrode and movable electrode mutually respectively by each.But the connection between above-mentioned each insulating element is also insufficient.Consequent problem is: when open circuit, because movable electrode and make the fierceness action of the open-and-close mechanism portion that this movable electrode rotates makes the position that is provided with of each insulating element that relativity shift take place.

Again, the movable electrode of being located at cannula tip is connected with the open-and-close mechanism portion that is made of many connecting rods etc., and under the driving of this open-and-close mechanism portion, movable electrode is with the fixed electrode contact or separate.Yet, the varying in size of the movable electrode head portion that designs owing to the size of considering powered-on capacity, movable electrode is very big towards the inertia that disconnects direction during disconnection.Like this, make movable electrode cross the release position of regulation significantly and the possibility of rotating is very big.For this reason, indispensable consideration during design: will put on the devices such as connecting rod that constitute open-and-close mechanism portion for the load that makes movable electrode stop at the regulation release position to following factor.

Because insulating element roughly covered the electrode part of being made up of fixed electrode and movable electrode fully in the past, therefore such problem is arranged: in main cartridge, be provided with after the insulating element, can't confirm the situation of this insulating element inside again.

The known switch that has as shown in figure 46.This open relation runs through fixed power source side sleeve pipe 211 and load side sleeve pipe 212 on opposed in opposite directions left side wall 210a of switch box body 210 and right side wall 210b, mains side sleeve pipe 211 is provided with fixed electrode 213, runs through to be supported with conducting rod 214 on load side sleeve pipe 212.With two bolts 222 movable electrode supporting member 231 is installed on the conducting rod 214.On movable electrode supporting member 231, be supported with movable electrode 216 opening or closing by connecting pin 226.In addition, by folding driving mechanism not shown in the figures, making movable electrode 216 is the swing that above-below direction is made at the center with connecting pin 226, so, makes movable electrode 216 relative fixed electrodes, 213 contacts or separation, carries out switching on or off of circuit.

But system does the fastening of relative conducting rod 214 by bolt 222 with movable electrode supporting member 231 because of the supporting structure of the movable electrode 216 in the above-mentioned switch in the past, so, the installation site of movable electrode 216 is set in assigned position.When its result, the corresponding relation generation deviation of fixed electrode 213 and movable electrode 216, can't revise by movable electrode supporting member 231 1 sides.

When revising the corresponding relation of movable electrode 216 relative fixed electrodes 213, normally adopt the method for the position of regulating load one side sleeve pipe 212 relative right side wall 210b.A plurality of fastening bolts 233 of the retention mechanism 232 of fastening load one side sleeve pipe 212 on right side wall 210b unclamp in above-mentioned position adjustments method system, simultaneously the load side sleeve pipe 212 of mobile three-phase.

Therefore, as stated above not only can't be to movable electrode 216 by the fine setting of carrying out the position mutually, and the position adjustments of three-phase movable electrode 216 is also pretty troublesome.

Again, known existing such switch: movable electrode is made of 2 movable touch knifes, and the base end part of two movable touch knifes passes through the pivot pin rotatably support on conducting rod.Near the central authorities of two movable touch knifes, connecting the folding drive link rotationally by connecting axle, above-mentioned folding dynamically is connected in open-and-close mechanism portion with drive link.Two movable touch knifes form dull and stereotyped L word shape or reaping hook shape with the metal material with conductivity respectively, and the distance between two movable touch knifes is narrow than the width of fixed electrode.And closed a floodgate when driving when above-mentioned open-and-close mechanism portion, by the folding drive link, two movable touch knifes are rotating fulcrum with the pivot pin, rotate to closing direction.Two movable touch knifes because of and fixed electrode between sliding contact expand out, when moving to make position, two movable touch knifes are because of the elastic force of himself, contact with the fixed electrode two sides with the contact pressure of regulation.

During by electric current, then between two movable touch knifes electromagnetic attraction takes place because of this function of current on by two pieces of movable electrodes that movable touch knife constituted.Distance (pitch) between the size of this electromagnetic attraction and two movable touch knifes is inversely proportional to, and with movable touch knife length (strictly speaking, come down to the length of parallel conductor, that is, from folding with the axle installation site of drive link to the distance of its top connecting portion) and 1/2 square be directly proportional of the electric current of the movable touch knife of flowing through.For this reason, the switch that its rated current is big more, its electromagnetic attraction that acts between two movable touch knifes is also big more.This does not become big problem in the switch that for example specified short circuit switching current is 8kA, still, then can produce following problems in the switch that specified short circuit switching current is 12.5kA.

Promptly, when closing a floodgate, the switch that to act on the electromagnetic attraction between two movable touch knifes be 8kA compared with specified short circuit closed path obviously increases, therefore, on two movable touch knifes direction near each other, make folding do bending deflection with the axle bearing position of drive link to fulcrum, two movable touch knifes are too approaching each other.Because apart from being inversely proportional to, so mutual spacing is from too close between the size of electromagnetic attraction and two movable touch knifes, its electromagnetic attraction all the more increases.For this reason, when closing a floodgate, may make that two movable touch knifes are pushed open at the electrode that is not fixed, closed also inadequate state (semi-closed state) just stops.Thereby be difficult to do closed smoothly.

Again, the rated current of switch is big more, also must increase (lengthening) for guaranteeing the required movable touch knife size of its folding capacity.Particularly, the movable touch knife folding increases with the distance between axle bearing position and the top contact site of drive link, and then the stable support ability of two movable touch knifes reduces, and simultaneously, is subjected to the influence of above-mentioned electromagnetic attraction when closed easily.Therefore, two movable touch knifes are difficult to guarantee that to the chucking power instability of fixed electrode two movable touch knifes are in stable contact condition at the top contact site.

As in the past the switch spline structure with the conducting rod on the sleeve pipe, the applicant has proposed a kind of mechanism shown in the real fair 2-6574 communique of Japanese patent gazette.This rotation preventive mechanism system with the spline plate embed forms by insulating material such as resin or rubber, do with box face that face contacts, the relative containment member inside that can not connect rotationally, it can not be relatively rotated.Form the jack that is roughly drum type at spline plate central part, this jack is inserted roughly similar to the jack conducting rod in its cross section, conducting rod is anchored on the sleeve pipe with nut.

But above-mentioned rotation preventive mechanism in the past is because of the manufacturing of spline plate and conducting rod and the intersection on the package size, in the portion's of running through generation certain clearance of two members.For this reason, on switch being installed on electric pole etc. after, going between when drawing and being installed on another conducting terminal, torque is arranged as effect on lead-in wire from sleeve pipe, then conducting rod is done rotation among a small circle in the jack of spline plate.Thus, the assembling position that causes being installed on the movable electrode of conducting rod end departs from the normal position because of the rotation of conducting rod.Its result causes the corresponding relation generation deviation of fixed electrode and movable electrode, and the resistance to sliding change of two electrodes during folding forms concentrated wear, and brings adverse effect to opening and closing movement.

For addressing the above problem, the someone considers the method that filling adhesive is fixed in the gap.But whether this method troublesome poeration can reliably stop the reliability ambigendi locus of the rotation of conducting rod.

Usually, switch enclosure is to be engaged on the flange part that is formed on main cartridge peristome end limit by the flange part that seal will be formed at box cover peristome end limit, and fastening by screw bolt and nut.As shown in figure 47, the cross section of the flange part 512b of main cartridge 512 is the reverse U shape shape, and to accommodate seal 514, the flange part 513b of box cover 513 pushes, is contacted with the outer surface of seal 514.

But according to above-mentioned switch box body in the past, because be that C1, the C2 at the flange part 512b of main cartridge 512, three places of C3 are bent to form, so the drawing operation of flange part 512b must be carried out three times, very trouble.

Summary of the invention

The 1st purpose of the present invention is: a kind of switch of withstand voltage build-in components supporting structure between ground connection that improves is provided.

The 2nd purpose of the present invention is: a kind of switch and insulating element thereof are provided, and described switch can prevent to be arranged at respectively relatively moving between each insulating element of going up mutually.

The 3rd purpose of the present invention is: a kind of switch is provided, and described switch can prevent that movable electrode from significantly crossing the release position of regulation and rotate.

The 4th purpose of the present invention is: a kind of switch insulating element is provided, described insulating element in being arranged at main cartridge after, also can confirm its inner case.

The 5th purpose of the present invention is: a kind of supporting structure of switch movable electrode is provided, described supporting structure can be easily to the mounting position of movable electrode respectively by regulating mutually.

The 6th purpose of the present invention is: a kind of switch movable electrode structure is provided, and described structure can be stablized the chucking power of two movable touch knifes to fixed electrode when opening and closing combined floodgate.

The 7th purpose of the present invention is: the rotation preventive mechanism of a kind of switch with conducting rod in the sleeve pipe is provided, and described mechanism can prevent the loosening of the interior conducting rod of sleeve pipe, the corresponding relation of correct maintained switch movable electrode and fixed electrode.

The 8th purpose of the present invention is: a kind of switch box body and employed seal thereof that can easily carry out the punch forming operation is provided.

The invention provides a kind of build-in components supporting structure of switch.Described open relation is intercalated in each with switch with build-in components and relatively runs through the cannula tip that is supported on the main cartridge two side mutually.Between described build-in components and main cartridge, be provided with the insulating properties elastic pressurizing element of described build-in components being pressed to the main cartridge inboard, described insulating properties elastic pressurizing element is integrally formed with the inside and outside airtight containment member of maintenance main cartridge, the sealing member is formed at the outside of main cartridge, be clipped between the flange and main cartridge lateral surface that is formed at sleeve pipe, in main cartridge, also be provided with the align member of restriction build-in components to the main cartridge medial movement.

The invention provides a kind of switch build-in components bearing support.Described bearing support is installed on that formed sleeve pipe runs through portion on the main cartridge sidewall.Described bearing support is formed by the elastomeric material with insulation property, for intercalation the tubular support of sleeve pipe is arranged, and has the elastic pressurizing element of build-in components being pressed to the main cartridge inboard.

The invention provides a kind of switch build-in components bearing support.Described bearing support is used for propping up a bearing switch build-in components, this switch is intercalated in the end that each relatively runs through the sleeve pipe that is supported on the main cartridge two side mutually with build-in components, and be located between the inside sidewalls face and align member of main cartridge, described bearing support is installed on that formed sleeve pipe runs through portion on the main cartridge sidewall.Described bearing support is formed by the elastomeric material with insulation property, comprise: intercalation has the tubular support of sleeve pipe, be located on the support, sealing when the mounting support frame between casing flange and main cartridge outer wall, be located on the support, when the mounting support frame between the inside sidewalls face of main cartridge and build-in components and with build-in components press to the main cartridge inboard elastic pressurizing element, described build-in components is because of the plus-pressure and the described align member butt of described pressing element, and described thus build-in components is subjected to described align member to limit described elastic pressurizing element to main cartridge inboard mobile to have the active force of build-in components being pressed to the main cartridge inboard.

The invention provides a kind of switch insulation component.In above-mentioned switch, on the main cartridge two side, run through being supported with each mutually relative sleeve pipe, on a side cannula tip, be provided with fixed electrode, and on the opposite side cannula tip, be provided with rotationally can with fixed electrode from, the corresponding movable electrode that closes.Insulating element covers two electrodes of each phase respectively, carries out the insulation between alternate and ground connection.Insulating element has the clamping close device that relatively moves that can prevent between adjacent insulating element.

The invention provides a kind of switch, described switch runs through on the main cartridge two side and is supported with each mutually relative sleeve pipe, on the end of a side sleeve pipe, be provided with fixed electrode, and on the opposite side cannula tip, be provided with rotationally can with fixed electrode from, the corresponding movable electrode that closes.Insulating element covers two electrodes, carries out the insulation between alternate and ground connection thus.On a side of insulating element, be provided with protuberance or recess, on its another side, be provided with recess or protuberance that raised part relatively or recess engage again.

The invention provides a kind of switch, described open relation runs through on the main cartridge two side and is supported with each mutually relative sleeve pipe, on a side cannula tip, be provided with fixed electrode, and on the opposite side cannula tip, be provided with rotationally can with fixed electrode from, the corresponding movable electrode that closes.Described switch has buffer component, and described buffer component is supported in the box body by supporting arrangement, in movable electrode mobile offside, absorbs described turning power when preventing to disconnect.

The invention provides a kind of switch insulation component.In above-mentioned switch, on the main cartridge two side, run through being supported with each mutually relative sleeve pipe, on the end of a side sleeve pipe, be provided with fixed electrode, and on the cannula tip of opposite side, be provided with rotationally can with fixed electrode from, the corresponding movable electrode that closes.Insulating element covers two electrodes, carries out the insulation between alternate and ground connection by this.Insulating element is provided with inspection hole, by described inspection hole can the state in being arranged at main cartridge under, confirm the electrode structure that it is inner.

The invention provides the supporting structure of the movable electrode in a kind of switch.Described supporting structure be equipped with can be arranged at fixed electrode in the switch box body from, the movable electrode that closes.Be installed on the conducting rod end of being supported on the sleeve pipe of switch enclosure, by the electrode support member supporting movable electrode is arranged, between conducting rod and electrode support member, be provided with and movable electrode is moved adjusting, left and right directions towards the conducting rod axis direction as fore-and-aft direction move and regulate or left and right directions rotates the electrode position governor motion of regulating.

The invention provides a kind of supporting structure of switch movable electrode, described supporting structure is equipped with the movable electrode that the fixed electrode that can be relatively arranged in the switch box body is approaching, separate.On the conducting rod end of being supported on the sleeve pipe that is installed on the switch box body, be supported with the movable electrode supporting member.The structure of the base end part of movable electrode supporting member makes it move adjusting, left and right directions as fore-and-aft direction at the axis direction of conducting rod and moves and regulate or left and right directions rotates and regulates.

The invention provides a kind of switch movable electrode structure.With under the driving of drive link, a pair of movable touch knife of movable electrode is made resilient clamp from both sides to fixed electrode to described structure, to keep closed circuit state in folding.In the optional position of the axle bearing position of using drive link from the folding between two movable touch knifes to the top contact site, and on the position of not disturbing with movable electrode or the set arc extinguishing member of fixed electrode side, be provided with restriction two movable touch knifes from, the stopping means that closes.

The invention provides the rotation preventive mechanism of a kind of switch with conducting rod in the sleeve pipe.Described mechanism ties up to relative box body runs through on the fixing sleeve pipe and inserts conducting rod, be formed at snap flange and this inside pipe casing on the conducting rod set engage the end difference butt, box face is provided with containment member.With twisting the nut close in the outer screw section of conducting rod conducting rod is anchored on the sleeve pipe.Between containment member and nut, accompany the spline plate, be formed with on the spline plate can with the engaging recessed part that engages the engaging of protuberance or recess or the engaging protuberance of containment member.The jack that is formed at spline plate central part is provided with can be chimeric with the notch part of the outer screw section that is formed at conducting rod, prevent the rotating incision teat of conducting rod.

The invention provides a kind of switch enclosure of forming by main cartridge and box cover.Between being formed at the flange part on the main cartridge peristome ora terminalis and being formed at flange part on the hamper body peristome ora terminalis, being formed with the cross section is leg-of-mutton seal receiving space.

Description of drawings

Fig. 1 is the front section view of switch.

Fig. 2 is the decomposition front view of sleeve pipe installation portion.

Fig. 3 is the major part front section view of sleeve pipe installation portion.

Figure 4 shows that the end view under the fastening state of three phase isolated parts.

Fig. 5 is the stereogram of insulating element.

Fig. 6 is the stereogram of insulating element.

Fig. 7 is in the major part amplification view under the fastening state for showing engaging recessed part and engaging protuberance.

Fig. 8 is the stereogram of insulating element.

Figure 9 shows that the decomposition front section view of the installation of buffer and carrying cylinder.

Figure 10 shows that the front section view of the installation of buffer and carrying cylinder.

Figure 11 (a) is depicted as bundle is installed on the schematic perspective view that the binding member gets on, and Figure 11 (b) is depicted as the stereogram of various cables such as control line being made the boundling laying state.

Figure 12 shows that the front section view under the installment state that changes the barrier structure in the example.

Figure 13 is for changing the vertical view of the major part of switch in the example.

Figure 14 is for changing the front view of the major part of switch in the example.

Figure 15 (a) is for changing the stereogram of the build-in components in the example, and Figure 15 (b) is for changing the side sectional view of the build-in components switch in the example.

Figure 16 is for changing the front section view of the major part of switch in the example.

Figure 17 (a) is for changing the stereogram of the build-in components in the example, and Figure 15 (b) is the front section view of the major part of the build-in components switch in the variation example.

Figure 18 is the front section view of the major part of the switch in the variation example.

Figure 19 is the front view of open-and-close mechanism portion of the switch of the 2nd example of the present invention.

Figure 20 is the vertical view of the open-and-close mechanism portion of Figure 19.

Figure 21 is the cutaway view of the supporting structure portion of movable electrode.

Figure 22 saves the cutaway view of drive link for the 20-20 line place of Figure 19.

Shown in Figure 23 is the exploded perspective view of movable electrode bearing structure.

Figure 24 is for changing the stereogram of routine movable electrode bearing structure.

Figure 25 is for changing the exploded perspective view of routine movable electrode bearing structure.

Figure 26 is the front view of the movable electrode of the 3rd example of the present invention.

Figure 27 is the vertical view of the movable electrode of the 3rd example of the present invention.

Figure 28 is the front view of the movable electrode of the 4th example of the present invention.

Figure 29 is the cutaway view at the 29-29 line place among Figure 28.

Vertical half sectional view for the spline structure of the conducting rod in the switch of the 5th example of the present invention has been specialized shown in Figure 30.

Figure 31 is the longitudinal sectional view of the amplification of major part.

Figure 32 is the exploded perspective view of conducting rod, containment member and spline plate.

Figure 33 is the longitudinal sectional view after the major part before the clamp nut is amplified.

Figure 34 is the longitudinal sectional view after the major part after the clamp nut is amplified.

Figure 35 is for changing the cutaway view of routine spline plate.

Figure 36 is for changing the routine containment member and the front view of spline plate.

Figure 37 is for changing the routine containment member and the front view of spline plate.

Figure 38 is the cutaway view after the switch box body major part of the 6th example of the present invention is amplified.

Figure 39 is the cutaway view after the same switch box body major part is amplified.

Figure 40 is the cutaway view after the same switch box body major part is amplified.

Figure 41 is the exploded perspective view of switch box body.

Figure 42 is local excision's front view of display switch.

Be respectively the transverse sectional view of other examples of main cartridge and box cover connected structure shown in Figure 43 (a)-Figure 43 (e).

Be respectively the transverse sectional view of other examples of seal shown in Figure 44 (a)-Figure 44 (e).

Figure 45 is the stereogram of other examples of seal.

Shown in Figure 46 is the cross-sectional schematic of the movable electrode bearing structure of switch in the past.

Shown in Figure 47 is the transverse sectional view of switch enclosure main cartridge and box cover junction surface structure in the past.

Embodiment

Below, with reference to Fig. 1-Figure 11, just the switch of the present invention's the 1st example is done an explanation with the build-in components supporting structure.

Overall structure

As shown in Figure 1, the box body of switch 11 comprises: have the case shape main cartridge 12 of lower openings portion and lid and have the case shape bottom box body 13 of upper opening portion and bottom, the lower openings portion of main cartridge 12 is by 13 closures of bottom box body.It is fastening by bolt 16 and 17 on nut to be located at brace 15 set in the open side edges portion of fastening compressing tablet 14 relative main cartridges 12 of open side edges portion of bottom box body 13.By this, can make bottom box body 13 relative main cartridges 12 do detachable connection.Accompany seal 18 between main cartridge 12 and the bottom box body 13, the air-tightness of seal 18 maintained switchs 11.

On the relative mutually two side of main cartridge 12,, run through being supported with mains side sleeve pipe 21 and load side sleeve pipe 22 with each phase in the three-phase (only showing a phase among Fig. 1) relative state mutually.The end of the mains side sleeve pipe 21 in main cartridge 12 is fixed with shaft-like fixed electrode 23, is fixed with supporting member 24 in the end of main cartridge 12 internal loading side sleeve pipes 22.On this supporting member 24, be supported with the base end part of movable electrode 26 pivotally by axle 25.Movable electrode 26 is made of a pair of movable touch knife that be arranged in parallel each other (only having shown a movable touch knife among the figure).

On the other hand, top in main cartridge 12, opening-closing structure (omitting among the figure) by being made of a plurality of connecting rods etc. is provided with the rotation axis 27 of the operating grip (not shown) that is connected in main cartridge 12 outsides, but is fixed with to unitary rotation control lever 28 on this rotation axis 27.The top of control lever 28 is connected with an end of drive link 29 rotationally.The other end of this drive link 29 is connected near the central authorities of movable electrode 26 rotationally.Thus, the operating operation handle, movable electrode 26 is the center by opening-closing structure, rotation axis 27, control lever 28 and drive link 29 with axle 25, is moving between the release position shown in make position shown in Fig. 1 solid line and Fig. 1 double dot dash line.

The build-in components bearing support

As shown in Figures 2 and 3, be separately installed with build-in components bearing support (below, abbreviate " bearing support " as) 31 on each cased perforated 12a of main cartridge 12.Bearing support 31 has insulating properties and the one-shot forming of flexible synthetic resin material by EPDM etc., comprises cylindric support 31a, sealing 31b and as the elasticity pressurization part 31c of insulating properties elastic pressurizing element.The outside dimension of support 31a makes among its cased perforated 12a that can be embedded in main cartridge 12.The internal diameter size of support 31a makes it can be chimeric with the cannula tip side part of flange 21a, the 22a of each sleeve pipe 21,22.Sealing 31b becomes a circular end end periphery that is based in support 31a.Elasticity pressurization part 31c becomes circular cone shape to be based in the support 31a periphery of sealing 31b inboard.Between sealing 31b and elasticity pressurization part 31c, it is equivalent to the distance of the sidewall thickness of main cartridge 12 at interval.The part of the support 31a periphery between sealing 31b, elasticity pressurization part 31c and sealing 31b and elasticity pressurization part 31c forms installs recess 32.

As shown in Figure 3, the edge of opening that accompanies the cased perforated 12a of main cartridge 12 on the recess 32 is installed.That is, the edge of opening of cased perforated 12a (medial surface edge) is covered by the synthetic resin that EPDM etc. has insulating properties.Each sleeve pipe 21,22 is interspersed in cased perforated 12a respectively and goes up among the support 31a of the bearing support of installing 31.

As shown in Figure 1, in the sidewall outer of main cartridge 12, near cased perforated 12a, stand and be provided with a plurality of bolts 33.Respectively be inserted with the flange pressing piece 34 of the flange 21a, the 22a that cover each sleeve pipe 21,22 on each bolt 33, with nut 35 fastening pressing pieces 34, by this, each sleeve pipe 21,22 relative main cartridges 12 fixed from the outside.

As shown in Figures 2 and 3, the sealing 31b of bearing support 31 is arranged between the sidewall outer of flange 21a, the 22a of each sleeve pipe 21,22 and main cartridge 12, by this, annoying password protection hold main cartridge 12 inside and outside.

Intercalation has into box zero phase sequence currenttransformer 36 on the end of mains side sleeve pipe 21, in the intercalation of the end of load side sleeve pipe 22 cut-out relay 37 is arranged.That is, advance sleeve pipe jack 36a, the 37a (the sleeve pipe jack that only shows a corresponding phase among Fig. 2 and Fig. 3) that is formed with respectively on box zero phase sequence currenttransformer 36 and the cut-out relay 37 corresponding to three-phase electricity source and load side sleeve pipe 21,22.In addition, be inserted with the end of mains side and load side sleeve pipe 21,22 and on two sleeve pipe jack 36a, the 37a than the part of the elasticity pressurization part 31c inside of support 31a.Again, control lever 28, go into the build-in components that formation switches such as box zero phase sequence currenttransformer 36 and cut-out relay 37 are used.

As shown in Figure 1, go between box zero phase sequence currenttransformer 36 and the cut-out relay 37 to be provided with insulating element as described below 41.Insulating element 41 has relative pair of sidewalls mutually on alternate direction, this pair of sidewalls will be gone into box zero phase sequence currenttransformer 36 and cut-out relay 37 by pressing to elasticity pressurization part 31c one side, simultaneously, by the elastic force of elasticity pressurization part 31c, make the inboard that is pressed towards main cartridge 12 into box zero phase sequence currenttransformer 36 and cut-out relay 37 all the time.That is, go into box zero phase sequence currenttransformer 36 and cut-out relay 37 by insulating element 41 is set in main cartridge 12, and can under the keep-uping pressure of regulation, remain in the end of two sleeve pipes 21,22.In other words, go into box zero phase sequence currenttransformer 36 and cut-out relay 37 by insulating element 41 location.

Insulating element

As Fig. 1 and shown in Figure 4, in main cartridge 12, as the insulating element 41 of positioning element by each phase (only showing a phase among Fig. 1) separate configurations.Insulating element 41 has the synthetic resin injection mo(u)lding of insulating properties by for example unsaturated polyester resin etc. and forms.As Fig. 4-shown in Figure 6, insulating element 41 form can cover two electrodes 23,26 from the below have under casing box-like.Opening is arranged at insulating element 41 tops, and relative pair of sidewalls 41a, 41b mutually arranged on the direction between out-phase.With out-phase between on the vertical direction of direction, insulating element 41 has relative pair of sidewalls 41c, 41d mutually.Form recess 42,43 respectively on the top of sidewall 41c, 41d.Recess 42,43 forms along the outer peripheral face of sleeve pipe 21,22 respectively.The configuration of insulating element 41 makes each phase sleeve pipe 21,22 and electrode 23,26 between its sidewall 41a, 41b, engages the downside of sleeve pipe 21,22 on the recess 42,43 respectively.

Clamping close device

As shown in Figure 5, there are 3 engaging recessed parts 44 to be disposed at each vertex position of del on the square sidewall 41a one of among pair of sidewalls 41a, the 41b.As shown in Figure 6, there are 3 engaging protuberances 45 to be disposed at each vertex position of del on the opposing party's sidewall 41b again.As shown in Figure 4, when in main cartridge 12 each insulating element 41 being set, the engaging recessed part 44 of sidewall 41a, the 41b of adjacency and engaging protuberance 45 engage mutually each other.

That is, as shown in Figure 7, engaging protuberance 45 is positioned at engaging recessed part 44, and engaging by this can prevent that each insulating element 41 is along moving on sidewall 41a, the 41b direction.

Jockey

As Fig. 4 and shown in Figure 8, be equipped with cylindric fitting portion 46 on the bottom wall outer face of each insulating element 41.As Fig. 1 and shown in Figure 4, each insulating element 41 connects each other by connecting elements 47 is installed on fitting portion 46.That is, connecting elements 47 forms long size shape by the synthetic resin with insulation property, is formed with 3 embedded hole 47a on this connecting elements 47.3 embedded hole 47a with and the out-phase of the fitting portion 46 of each insulating element 41 between configuration space identical distance configuration on the direction.And each embedded hole 47a goes up chimeric each fitting portion 46 respectively, connects the insulating element 41 of each phase by this.The wall thickness of connecting elements 47 is less than the height of fitting portion 46, and each fitting portion 46 is outstanding below connecting elements 47.

Interference prevents member

As Fig. 1 and shown in Figure 4, be equipped with to disturb on the ledge below the connecting elements of each fitting portion 46 47 and prevent member 48.That is, disturb and to prevent that to form the lateral section be the L word shape to member 48 by having insulation property and flexible elastomeric material, has concavo-convex each other relation with connecting elements 47.Again, prevent on the member 48, to be formed with 3 perforation 48a with each embedded hole 47a identical distance in interference.Chimeric respectively on each 48a that bores a hole have below the connecting elements 47 of each fitting portion 46 an outstanding part.Prevent that in interference under the installment state of member 48, the top ends of each fitting portion 46 is positioned at the 48a inside of respectively boring a hole.Interference prevents the bottom surface of member 48 and the medial surface butt of bottom box body 13, prevents member 48 by described interference, can prevent that each insulating element 41 from disturbing with bottom box body 13 medial surfaces.

Inspection hole

As Fig. 1 and shown in Figure 8, be formed with circular inspection hole 49 in the bottom of the sidewall 41d of load side sleeve pipe 22 1 sides of insulating element 41.Inspection hole 49 is used under the state that is provided with that insulating element 41 is arranged in the main cartridge 12 or the way is set, and can confirm the electrode structure of insulating element 41 inside etc. from the outside.That is, the allocation position of inspection hole 49, size (diameter) and shape etc. should be set to such an extent that can confirm electrode structure of insulating element 41 inside etc.Again, the also installation portion of the following buffer component 52 of double as of inspection hole 49.

The port lid member

As Fig. 1 and Fig. 8, shown in Figure 9, port lid member 51 (see figure 9)s are installed on inspection hole 49, stop up inspection hole 49 thus.Port lid member 51 comprises the buffer 52 of double as buffer component and damping member, reaches the carrying cylinder 53 as transmission member.

Buffer

As shown in Figure 9, buffer 52 has insulation property by EPR etc. and flexible synthetic resin material forms cylindric.Buffer 52 1 end openings.Buffer 52 peristome peripheries form circular mounting groove 54, embed the edge of opening of the inspection hole 49 that insulating element 41 is arranged in this mounting groove 54.On substantial middle position, the bottom of buffer 52, be formed with air blow-off outlet 55 again.Be formed with the conical surface 56 that enlarges laterally in the open end of buffer 52 on week continuously, and diameter is greater than the large-diameter portion 57 of buffer 52 internal diameters.

As shown in figure 10, when disconnecting, movable electrode 26 can take place offside on the disconnection direction because of its inertia force sometimes.That is, movable electrode 26 rotates sometimes and crosses the desired location shown in Fig. 1 double dot dash line.At this moment, the inner end of the back side of movable electrode 26 and buffer 52 collision.The length of buffer 52, diameter and installation site (being the formation position of inspection hole 49) etc. are set according to the action of movable electrode 26.If movable electrode 26 back sides bump with buffer 52 inner ends, buffer 52 can distortion.

Carrying cylinder

As shown in Figure 9, carrying cylinder 53 forms cylindric by the synthetic resin material that polyethylene etc. has insulating properties.One end opening of carrying cylinder 53.The bottom of carrying cylinder 53 is formed with towards airtight 58 of the circular cone shape of peristome diameter increase.Airtight 58 maximum gauge is a bit larger tham the large-diameter portion 57 of buffer 52.Again, be formed with flange part 59 near the periphery central authorities of carrying cylinder 53, this flange part 59 has towards the planar portions of buffer 52 1 sides.

As shown in figure 10, the chimeric opening that the buffer 52 that is installed on the inspection hole 49 is arranged on the inside bottom of the flange part 59 of carrying cylinder 53.Carrying cylinder 53 is restricted with engaging of buffer 52 open ends to the planar portions that moves because of the flange part 59 of carrying cylinder 53 of insulating element 41 inboards.Effect has the elastic force of buffer 52 towards the inboard on airtight 58 periphery of carrying cylinder 53, and airtight 58 closely contacts with the conical surface 56 of buffer 52.That is, the peristome of buffer 52 is airtight by carrying cylinder 53.For this reason, during disconnection, movable electrode 26 back sides and buffer 52 collisions make buffer 52 distortion, and the air of buffer 52 inside is extruded to the outside through blow-off outlet 55 by compression promptly.Again, the impact when the medial surface butt of the open end of carrying cylinder 53 and bottom box body 13, the inner end butt of movable electrode 26 and buffer 52 is passed to main cartridge 12 through carrying cylinder 53 and bottom box body 13.

Cable binding member

As shown in Figure 8, be equipped with a plurality of binding members 61 on the bottom surface circumference of insulating element 41.Shown in Figure 11 (a), binding is formed with on the member 61 and can interts the inserting hole 61a of bundling belt 62.Shown in Figure 11 (b), various cables 63 such as control line compile along insulating element 41 bases, reel by interting the bundling belt of inserting hole 61a, and insulating element 41 is fixing relatively.

The effect of the 1st example

Below, with regard to the work of the switch of aforementioned structure as an explanation.

Carry out opening operation with operating grip, then movable electrode 26 turns to the release position shown in the double dot dash line Fig. 1 from the make position shown in Fig. 1 solid line.The inertia force of the disconnection direction of movable electrode 26 is very big, and it is rotated to the direction of crossing the release position greatly.Yet the connecting rod of the moving open-and-close mechanism portion of formation etc. are before moving to the mobile limited field of its permission, and the inner end of the back side of movable electrode 26 and buffer 52 collides.Its result can prevent the offside of movable electrode 26.That is, can prevent that movable electrode 26 from rotating to the direction of crossing the release position significantly.Simultaneously, the turning power of movable electrode 26 can be absorbed by buffer 52 rapidly.Can alleviate thus the connecting rod that constitutes open-and-close mechanism portion etc. is applied, make it stop at the load that the regulation release position is used.Movable electrode 26 is when colliding with buffer 52 inner ends, and its impulsive force is absorbed, relaxes because of the distortion of buffer 52.Again, this impulsive force is passed to bottom box body 13 and main cartridge 12 by carrying cylinder 53.Insulating element 41 is mobile to the outer extreme direction of sleeve pipe 22 of load one side, and also the butt because of carrying cylinder 53 outer ends and bottom box body 13 medial surfaces is restricted.

The outer end opening portion of buffer 52 is sealed by carrying cylinder 53, and therefore, itself and external communications part only are blow-off outlet 55.Thus, when the inner end collision of movable electrode 26 with buffer 52, buffer 52 distortion, then inner air is compressed, and is squeezed out the outside from blow-off outlet 55.This compressed air is blown the electric arc generating unit to movable electrode 26, and the arc extinguishing gas that takes place during disconnection is dispelled to the direction away from movable electrode 26.Thus, 26 contacts of the movable electrode after can preventing to disconnect are stranded in the arc extinguishing gas of electric arc generating unit and circuits for triggering once more.

Below, do an explanation with regard to the switch of aforementioned structure with the effect and the effect of build-in components supporting structure.

(1) is provided with the elasticity pressurization part 31c that is formed on the bearing support 31 between box zero phase sequence currenttransformer 36 and cut-out relay 37 and the main cartridge 12 being intercalated in going into of two sleeve pipes, 21,22 ends.By this, make box zero phase sequence currenttransformer 36 and cut-out relay 37 under the resilient force of elasticity pressurization part 31c, pushed to main cartridge 12 inboards.Because of the active force of elasticity pressurization part 31c makes into box zero phase sequence currenttransformer 36 and cut-out relay 37 to the moving of main cartridge 12 inboards, also be restricted because of being arranged at main cartridge 12 interior insulating elements 41.That is,, can remain in the main cartridge 12 with the state that is intercalated in sleeve pipe 21,22 ends going into box zero phase sequence currenttransformer 36 and cut-out relay 37 by insulating element 41 is arranged in the main cartridge 12.Thereby, needn't will go into box zero phase sequence currenttransformer 36 and cut-out relay 37 is fixed in main cartridge 12 medial surfaces with bolt, short this problem of insulation distance between the electrode part on bolt and sleeve pipe 21,22 tops (fixed electrode 23 and movable electrode 26) is solved, can improve over the ground between withstand voltage.

(2) insulating element 41 is also used as the align member that moves that box zero phase sequence currenttransformer 36 and cut-out relay 37 side direction in main cartridge 12 are gone in restriction.Thus, can be by insulating element 41 be set in main cartridge, will go into box zero phase sequence currenttransformer 36 and cut-out relay 37 remains in assigned position.Thereby, needn't be provided for making member in addition into box zero phase sequence currenttransformer 36 and cut-out relay 37 location usefulness.

(3) go into box zero phase sequence currenttransformer 36 and cut-out relay 37 under the resilient force of elasticity pressurization part 31c, when being pressed towards main cartridge 12 inboards, also be pressed towards main cartridge 12 outsides (elasticity pressurization part 31c one side) because of insulating element 41.That is, go into the state maintenance of box zero phase sequence currenttransformer 36 and cut-out relay 37 with the sub-sleeve pipe of intercalation 21,22 ends.For this reason, needn't use and to go into box zero phase sequence currenttransformer 36 and cut-out relay 37 and be fixed in bolt in the main cartridge 12 etc., therefore can reduce number of components.Can simplify to go into box zero phase sequence currenttransformer 36 and cut-out relay 37 and be installed on fitting operation on the main cartridge 12 again.

(4) elasticity pressurization part 31c and sealing 31b are integrally formed.That is, the marginal portion of the cased perforated 12a of main cartridge 12 is covered by the insulating properties materials such as EPDM that are formed with elasticity pressurization part 31c and sealing 31b.Thus, make that the creepage distance between the marginal portion of the contact portion of sleeve pipe 21,22 and cased perforated 12a increases, the concentrated of the electric field on the cased perforated 12a marginal portion relaxed.Thus, can prevent flashover between ground connection more reliably.

(5) be formed with a plurality of engaging recessed parts 44 on the side sidewall 41a of insulating element 41, on opposite side sidewall 41b, be formed with a plurality of engaging protuberances 45.And making each other, engaging recessed part 44 and the engaging protuberance 45 of sidewall 44a, the 44b of adjacency engage mutually.Thus, can prevent that each insulating element 41 from relatively moving along sidewall 44a, 44b direction.

(6) the embedded hole 47a of chimeric connecting elements 47 on the fitting portion 46 of each insulating element 41 is to interconnect each insulating element 41.Can prevent not only that thus each insulating element 41 from relatively moving along sidewall 44a, 44b direction, and can prevent along moving on the direction between out-phase.Thereby, when disconnecting, even movable electrode takes place and makes the fierceness action of the open-and-close mechanism portion that this movable electrode rotates, the position is set also relative depature can take place of each insulating element 41.

(7) make engaging recessed part 44 and 45 engagings of engaging protuberance, and, connecting elements 47 is installed on the fitting portion 46, thereby the insulating element 41 of each phase is interconnected.By this, each insulating element 41 that can easily interfix.

(8) will prevent that by insulating element 41 movable electrode 26 offside buffers 53 are bearing in the switch enclosure by movable electrode 26 collisions when disconnecting.For this reason, movable electrode 26 in the time of not only can preventing to disconnect is offside, promptly, can prevent that not only movable electrode 26 from crossing the release position of regulation greatly and rotating, and can absorb the turning power of movable electrode 26 rapidly by buffer 52, prevent the impact that movable electrode 26 stops to produce along with turning power and, can keep stopping on the assigned position from the tripping of regulation release position.

The arc extinguishing gas that takes place when (9) buffer 52 is also used as disconnection blows to the air blowing member away from movable electrode 26 directions, when promptly disconnecting, when the collision of movable electrode 26 made buffer 52 distortion, buffer 52 inner compressed air blew the electric arc generating unit to movable electrode 26.The arc extinguishing gas that can take place when disconnecting blows to the direction away from movable electrode 26 thus, helps arc extinguishing.

(10) buffer 52 is installed on the inspection hole 49, is located at the inside of insulating element 41, thus, needn't be provided for supporting the member of buffer 52 in addition.

(11) on the part of insulating element 41, be provided with the inspection hole 49 that under the state that main cartridge 12 inside are provided with, to confirm its internal electrode structure.Thus, after being arranged at insulating element 41 in the main cartridge 12, also can confirm the states of forming by the fixed electrode of described insulating element 41 inside and movable electrode etc. such as electrode structure.

(12) after main cartridge 12 inside are provided with, with port lid (port lid member) 51 stifled upper observation holes 49.Thus, the arc extinguishing gas that takes place during disconnection can not leak to insulating element 41 outsides from inspection hole 49.Thereby, between the ground connection in the time of can preventing and disconnect, that is, and the flashover between main cartridge 12 or the bottom box body 13.

(13) buffer 52 that port lid 51 is provided with when being installed on inspection hole 49 and disconnection and collide at the back side of movable electrode 26.For this reason, during disconnection, can prevent that movable electrode 26 from crossing the release position of regulation greatly and rotating.

(14) constitute port lid 51, the arc extinguishing gas that takes place when making it can be also used as disconnection blows to the air blowing parts away from movable electrode 26 directions.That is, constitute port lid 51 by being installed on the buffer 52 on the inspection hole 49 and the carrying cylinder 53 of these buffer 52 outer end opening portions of obstruction.Thus, when disconnecting, if movable electrode 26 and buffer 52 collisions are compressed the air of these buffer 52 inside.Described compressed air is pressed to the outside from blow-off outlet 55, and the arc extinguishing gas that is stranded in the electric arc generating unit of movable electrode 26 is blowed to direction away from movable electrode 26, thereby, help the arc extinguishing of electric arc.

(15) will be embedded in the outer end of carrying cylinder 53 of buffer 52 outer end opening portions by being supported with the medial surface butt of bottom box body 13.Thus, when disconnecting, movable electrode 26 is passed to bottom box body 13 and main cartridge 12 because of colliding the impact that produces with buffer 52 through carrying cylinder 53.That is, the moving of extreme direction outside load side sleeve pipe 22 of the insulating element 41 during disconnection is owing to the butt of the medial surface of the outer end of carrying cylinder 53 and bottom box body 13 is limited.Thereby, can prevent that the position of insulating element 41 when disconnecting is offset.

Again, the 1st example also can be done following change;

(a) as shown in figure 12, can be at main cartridge 12 medial surfaces configurations tabular block piece 71 as positioning element, utilize 71 pairs of this block pieces to go into mobile restriction of box zero phase sequence currenttransformer 36 and cut-out relay 37 to main cartridge 12 inboards.So, can will go into box zero phase sequence currenttransformer 36 and cut-out relay 37 remains in the main cartridge 12.

(b) also the described switch of the 1st example can be applied in Figure 13 and the switch shown in Figure 14 with the build-in components supporting device.The figure illustrates switch 11, by with the interlock connecting rod 72 of the action interlock of movable electrode 26, make arc control device 73 follow rotation, and fixedly form gap arc extinguishing portion between the arc control device 76.Simultaneously, utilize described arc control device 73 as the shielding material between static electric shock 23 and the movable electrode 26 after the disconnection.In this switch 11, the axle support of interlock connecting rod 72 and control lever 28 stretches out to sidepiece, can contact with the medial surface of insulating element 41.The axle support of interlock connecting rod 72 and control lever 28 is for only being embedded in the structure on the pin 74 from the outside of pin 74.Again, the axle support of arc control device 73 1 sides of interlock connecting rod 72 only is embedded in structure on the pin 75 for the outside from the pin 75 that is based in arc control device 73 lateral surfaces.Drop-proof component as split pin etc. is set.Again, formation switch build-in components such as interlock connecting rod 72, arc control device 73, pin 74 and control lever 28.Like this, the axle support of interlock connecting rod 72 and control lever 28 is mobile because of the butt with insulating element 41 medial surfaces is restricted to side surface direction, interlock connecting rod 72 and control lever 28 can be remained on the assigned position.

(c) go on box zero phase sequence currenttransformer 36 and cut-out relay 37 1 sides and also the elasticity pressurization part can be set.That is, shown in Figure 15 (a), Figure 15 (b), go into rubber-like polylith elasticity pressurization lug 71 also can be set on sleeve pipe jack 36a, the 37a of box zero phase sequence currenttransformer 36 and cut-out relay 37 periphery corresponding with main cartridge 12 medial surfaces.So can utilize the elastic force of elasticity pressurization lug 71, will go into the inboard that box zero phase sequence currenttransformer 36 and cut-out relay 37 elasticity are pressed to main cartridge 12.

(d) as shown in figure 16, the helical spring 77 of the also replaceable one-tenth of elasticity pressurization part 31c with insulation property.So, the elastic force of helical spring 77 can be utilized, the inboard that box zero phase sequence currenttransformer 36 and cut-out relay 37 elasticity are pressed to main cartridge 12 will be gone into.

(e) shown in Figure 17 (a), Figure 17 (b), elasticity pressurization part 31c also can be made of polylith lug 78.Each piece lug 78 is made radial periphery from sleeve pipe jack 36a and is stretched out.Periphery place at the sleeve pipe jack 36a of each lug 78 inboard is formed with annular flange 79.The inboard face of flange 79 with go into box zero phase sequence currenttransformer 36 and cut-out relay 37 butts.So also can utilize the elastic force of the radial lug 78 of polylith, will go into the inboard that box zero phase sequence currenttransformer 36 and cut-out relay 37 elasticity are pressed to main cartridge 12.

(f) sealing 31b and elasticity pressurization part 31c also can make independently member respectively.So, by accompanying sealing 31b between main cartridge 12 and flange 21a, the 22a, can be with the main cartridge 12 inside and outside airtight conditions that keep.By the elastic force of elasticity pressurization part 31c, can the inboard that box zero phase sequence currenttransformer 36 and cut-out relay 37 elasticity are pressed to main cartridge 12 will be gone into again.

(g) the foregoing description is to form engaging recessed part 44 on a side sidewall 41a of insulating element 41, on its opposite side sidewall 41b, form engaging protuberance 45, but also can on a side sidewall 41a of insulating element 41, form engaging protuberance 45, on its opposite side sidewall 41b, form engaging recessed part 44.So, the mutual engaging by engaging recessed part 44 on sidewall 41a, the 41b that adjoins each other and engaging protuberance 45 can prevent that each insulating element 41 from relatively moving along sidewall 41a, 41b direction.

(h) in this example, be the insulating element 41 that connects each phase by the embedded hole 47a with connecting elements 47 is embedded in each fitting portion 46.But also can form embedded hole 47a, form fitting portion 46 in connecting elements 47 1 sides in insulating element 41 1 sides.So, can interconnect each insulating element 41.

(i) in this example, by being formed at the inspection hole 49 supporting buffers 52 on the insulating element 41.But also available additive method replaces, as shown in figure 18, and by being fixed in the support 71 supporting buffers 52 on main cartridge 12 or bottom box body 13 medial surfaces as supporting arrangement.Movable electrode 26 is stopped to the rotation that disconnects direction.

The 2nd example

Below, with reference to Figure 19-Figure 23, just the switch of the present invention's the 2nd example is done an explanation with the supporting structure of movable electrode.

As shown in figure 19, on the mutual relative left side wall 210a and right side wall 210b of switch box body 210,, run through and supporting mains side sleeve pipe 211 and load side sleeve pipe 212 with the mutual relative state of each phase in the three-phase (only showing a phase among the figure).As Figure 19 and shown in Figure 23, be equipped with the cross section in the inner of mains side sleeve pipe 211 and be octagonal fixed electrode 213 roughly.The a pair of conical surface of both sides along its length, the top of fixed electrode 213 becomes guiding face 213a, and the central two sides of fixed electrode 213 become energising contact-making surface 213b.

As shown in figure 19, be equipped with conducting rod 214 on the inner end of load side sleeve pipe 212, this conducting rod 214 is supported with the base end part of movable electrode 216 pivotally by electrode position governor motion 215.

The middle part of movable electrode 216 is connected with drive link 218 by connecting axle 217, and the upper end of this drive link 218 is connected with control lever 219.And, but control lever 219 when the open-and-close mechanism portion (not shown) by peripheral operation rotates, movable electrode 216 switches between closing position and locked position of coupler with respect to fixed electrode 213.

Below, do an explanation with regard to electrode position governor motion 215.As shown in figure 23, it is drum type that conducting rod 214 forms cross sections, its top ends on fore-and-aft direction (with the length direction of conducting rod 214 in the same way) form the two screw 214a of place, 214b with predetermined distance.The central portion base plate of fixed support plate 221 contacts with the top downside of conducting rod 214, and bolt 222 inserts among the hole 221a set on this bottom plate, twists with screw 214a, 214b and closes, and fixed support plate 221 is anchored on the conducting rod 214.Supporting board 221b, the 221c of the level of extending about fixed support plate 221 has are formed with screw 221d, 221e on two supporting board 221b, the 221c.

On fixed support plate 221 tops electrode support member 223 is installed.This electrode support member 223 by the hair clip shape body 223a that is seen as lengthwise from the front and, the adjustable plate 223b, the 223c that are bent to form of both sides lateral direction level constitutes to the left and right in its both sides, lower end.Be formed with on adjustable plate 223b, the 223c pairing with screw 221d, the 221e of fixed support plate 221, left and right directions is long and big slightly adjustment hole 223d, the 223e of threaded portion external diameter of the more following set bolt 224,225 in aperture.

The bolt 224 that inserts the below from adjustment hole 223d is closed on screw 221d by stubborn, is twisted from the bolt 225 of adjustment hole 223e insertion below and closes on screw 221e.Be formed with a support holes 223f on the body 223a, be interspersed with connecting pin 226 on this support holes 223f, utilize this connecting pin 226 that the base end part of movable electrode 216 is supported rotationally.Be formed to twist on the outer screw section of connecting pin 226 top ends and closed nut 227, between the body 223a of nut 227 and electrode support member 223, be folded with helical spring 228 and packing ring 229.Movable electrode 216 comprises pair of plates shape movable touch knife 216a, 216b, and from two movable touch knife 216a, the 216b outside overlapping with it respectively tabular reinforcement 216c, 216d.

Below, do an explanation with regard to the action of the supporting device of the movable electrode 216 of switch.

Under the "on" position of the movable electrode shown in solid line among Fig. 9 216, in case control lever 219 is lifted upward, by drive link 218, connecting axle 217 is also lifted upward, and movable electrode 216 is the center with connecting pin 226, upward swing.For this reason, movable electrode 216 is switched to the release position shown in Figure 19 dotted line from closure state.On the contrary, if control lever 219 in Figure 19, is shifted to the below from release position shown in the dotted line, then movable electrode 216 is switched to the make position shown in the solid line.

Below, narrate the effect and the structure of the supporting device of movable electrode 216 simultaneously.

(1) fixed support plate 221 is set below the top of conducting rod 214, with bolt 222 fastening these fixed support plate 221.On supporting board 221b, the 221c of the left and right sides of fixed support plate 221, form screw 221d, 221e.Bolt 224,225 inserted slotted hole shape adjustment hole 223d, 223e on adjustable plate 223b, the 223c that is formed at electrode support member 223, this bolt 224,225 is twisted close in screw 221d, 221e.Thus, at the supporting board 221b of fixed support plate 221, above the 221c, can be with electrode support member 223 works with respect to the adjusting (the arrow T of Figure 23) of the left and right horizontal direction of the central shaft S of conducting rod 214 and the adjusting (arrow M) of turned position.Can regulate the mounting position of movable electrode 216 thus, it can be installed on the appropriate location that normally cooperates with fixed electrode 213.

(2) in the 2nd example, surface bearing electrode support member 223 on fixed support plate 221 makes bolt 223,225 twist from the top and closes in screw 221d, 221e.Thus, electrode support member 223 carries out easily for the fitting operation of fixed support plate 221, also is convenient to carry out the position adjustments operation of electrode support member 223.

Again, the 2nd example also can be done following change.

As shown in figure 24, electrode support member 223 is made by bolt 222 structure fastening with respect to conducting rod 214, on electrode support member 223, form the U word shape 223g of portion that is supported on conducting rod 224 upper sides, form circular port 223h and slotted hole 223i in its bottom.Be provided with the axle support holes 223f of interspersed connecting pin 226 in the upper end of electrode support member 223 again.Bolt 222 through hole 223h in two bolts 222 twist the screw 214a that closes in conducting rod 214, under this state, making electrode support member 223 is that level is made to rotation in the center with bolt 222, another bolt 222 is passed hole 223i twist the screw 214b that closes in conducting rod 214, carry out the adjusting of the installation site of electrode support member 223.Last example compares with above-mentioned the 2nd example, can reduce component number.

Also can on conducting rod 214, form circular port 214c and slotted hole 214d as shown in figure 25, form screw 223j, 223k in the bottom of the U word shape 223g of portion that forms the electrode support member 223 that covers conducting rod 214.Also can twist and close with bolt 222,222 from top patchhole 214c and slotted hole 214d in screw 223j, 223k.This example and above-mentioned the 2nd example relatively can reduce component number.In addition, be preferably, bolt 222 uses the bolt of the band hexagon ring that rotates easily.

In the example that is shown in Figure 24 and Figure 25, hole 223h can make slotted hole, and hole 214c also can make slotted hole.

The 3rd example

Below, with reference to Figure 26 and Figure 27, do an explanation with the movable electrode structure with regard to the gas switch of the 3rd example of the present invention.

As shown in figure 26, on the mutual relative left side wall 311a and right side wall 311b of switch main cartridge, each the mutual relative state with in the three-phase runs through the sleeve pipe 313 that is supported with mains side sleeve pipe 312 and load side.Be provided with the cross section in the end nipple of mains side sleeve pipe 312 and be octagonal fixed electrode 314 roughly.Both sides along its length, the top of fixed electrode 314 are formed with a pair of taper guiding face 314a, and part becomes energising contact-making surface 314b between the two sides of fixed electrode 314.

On the inner end of load side sleeve pipe 313, be equipped with conducting rod 315, be supported with the base end part of two boards shape movable electrode 317 on this conducting rod 315 by pivot pin 316 pivotally.As shown in figure 27, movable electrode 317 has a pair of movable touch knife 317a, 317b.Two movable touch knife 317a, 317b form flat sickle shaped by the metal material with conductivity.The substantial middle position of two movable touch knife 317a, 317b is inserted with connecting axle 318, makes it can do the one revolution.

As shown in figure 26, in the top ends of two movable touch knife 317a, 317b, the position that contacts with fixed electrode 314 when promptly closing a floodgate is provided with contact site 321, and the axis of this contact site 321 relative movable electrode 314 when closing a floodgate becomes approximate vertical to intersect.On contact site 321,, cut apart the front side contact chip 323 and the rear side contact chip 324 that form two strands of shapes by being formed at the slit 322 on the substantial middle position.As Figure 26 and shown in Figure 27, the medial surface of front and back two contact chips 323,324, that is, and the medial surface of contact site 321 when closing a floodgate respectively as the energising face 321a that contacts with the energising contact-making surface 314b of fixed electrode 314.

Stopping means

As Figure 26 and shown in Figure 27, on the top of the tip side between two movable touch knife 317a, the 317b, accompany cylindric spacer block 331.Spacer block 331 is by the outside inserting bolt 332 from a side movable touch knife 317a, and from the outside clamp nut 333 of opposite side movable touch knife 317b, thereby be fixed between two movable touch knife 317a, the 317b.On two movable touch knife 317a, 317b, set the fixed position of spacer block 331 so that movable electrode 317 when make position is shifted in the release position and fixed electrode 314 do not disturb, and nearest from the top of the contact site 321 of two movable touch knife 317a, 317b.

Be fixed with under the state of spacer block 331 between two movable touch knife 317a, 317b, front and back two contact chips 323,324 can be fulcrum with the fixed position of spacer block 331, do to do bending deflection towards direction that is separated from each other and mutual approaching direction.Again, spacer block 331, bolt 332 and nut 333 are construed as limiting the restraint device that two movable touch knife 317a, 317b are approaching or separate.

On the other hand, be connected with switch on the connecting axle 318 pivotally with an end of drive link 341, this switch is with an end that is connected with control lever 342 on the other end of drive link 341 pivotally.But control lever 342 actions are connected in the open-and-close mechanism portion (not shown) of peripheral operation.Therefore, movable electrode 317 can be followed the driving of open-and-close mechanism portion, is the center with pivot pin 316, moves between the release position shown in make position shown in Figure 26 solid line and the double dot dash line.

The effect of the 3rd example

Below, with regard to the work of the movable electrode structure of the switch of said structure as an explanation.

If drive open-and-close mechanism portion, serve as the revolution fulcrum by control lever 342 and folding promptly with drive link 341, two movable touch knife 317a, 317b with pivot pin 316, to closing direction, promptly rotate in the left side among Figure 26.

In addition, when the top ends of the guide surface 314a on the top ends of two movable touch knife 317a, 317b and the movable electrode 314 contacts, produce electromagnetic attraction between two movable touch knife 317a, 317b, two movable touch knife 317a, 317b desire towards approaching direction displacement mutually.But the top between two movable touch knife 317a, the 317b is provided with spacer block 331.Therefore, can be actually because of the zone of electromagnetic attraction bending deflection from the fixed position of the spacer block 331 on two movable touch knife 317a, the 317b to subregion that the energising contact-making surface 314b of contact site 321 contacts till.

During combined floodgate, from the fixed position of the spacer block 331 on two movable touch knife 317a, the 317b to the part that contacts with the energising contact-making surface 314b of contact site 321, because of the effect of electromagnetic attraction can be fulcrum with the fixed position of spacer block 331, towards approaching direction bending, displacement mutually.However, its addendum modification is littler than the occasion that spacer block 331 is not set.It is the reasons are as follows.

Distance between the size of electromagnetic attraction and two movable touch knife 317a, the 317b is inversely proportional to, respectively with the length of two movable touch knife 317a, 317b and with 1/2 square be directly proportional of the electric current of flow through two movable touch knife 317a, 317b.And, in the 3rd example, attraction force acts in the length of the parallel conductor of contact site 321 in fact can regard as the zone of the displacement that can bend because of electromagnetic attraction length (promptly from the fixed position of spacer block 331 to part that the energising contact-making surface 314b of contact site 321 contacts distance).On the other hand, in the occasion that spacer block 331 is not set, attraction force acts in the parallel conductor length of contact site 321 can regard as from folding with the axle bearing position of drive link 341 to part that the energising contact-making surface 314b of contact site 321 contacts distance.Therefore, compare with the occasion that spacer block 331 is not set, attraction force acts shortens in the length of the parallel conductor of contact site 321, and therefore two movable touch knife 317a, 317b are difficult to be subjected to the influence of electromagnetic attraction.That is, the electromagnetic attraction that acts on contact site 321 reduces.

Therefore, when closing a floodgate, two movable touch knife 317a, 317b can not cause too close each other because of the influence of electromagnetic attraction, so MIN interval can keep closing a floodgate the time.Thereby two movable touch knife 317a, 317b can be along with not stopping with the sliding contact of the guide surface 314a of fixed electrode 314 halfway, and are that fulcrum expands and opens with the fixed position of spacer block 331.That is, two movable touch knife 317a, the 317b electrode 314 that is fixed is pushed open.

At this moment, because the apex portion of two movable touch knife 317a, 317b is interconnected by bolt 332 and nut 333 by spacer block 331, so two movable touch knife 317a, 317b can significantly not open on the direction that is separated from each other.Thereby two movable touch knife 317a, 317b are stable for the chucking power of fixed electrode 314, can guarantee that the contact condition of contact site 321 is stable.

Two movable touch knife 317a, 317b are when direction is rotated left again, and the energising contact-making surface 321a of contact site 321 depresses at almost parallel and in the contact of regulation, contacts with the energising contact-making surface 314b of static electric shock point 314 from both sides respectively.And when two movable touch knife 317a, 317b move to make position shown in Figure 26 solid line, close a floodgate and finish.

Under above-mentioned "on" position, the energising contact-making surface 321a of contact site 321 is contacted with the energising contact-making surface 314b of fixed electrode 314 with the state of almost parallel from the outside.Thus, the energising contact-making surface 321a of contact site 321 is by the elastic force of two movable touch knife 317a, 317b self, the energising contact-making surface 321a of contact site 321 depressed in contact uniformly roughly contact.Owing to be in contact with one another, therefore, can guarantee enough energising areas at energising face 314 whole two faces in corresponding region that contact with energising contact-making surface 314b again.

Like this, according to the 3rd example, can obtain following effect.

(1) from folding with the axle bearing position of drive link 341 to the zone on contact site 321 tops, when closing a floodgate and 314 positions of not disturbing of fixed electrode (apex portion of two movable touch knife 317a, 317b) spacer block 331 is set.The apex portion of this two movable touch knife 317a, 317b in the zone of not disturbing fixed electrode 314 near the apical position of contact site 321.For this reason, in two movable touch knife 317a, 317b, can actual effect bend displacement length partly (promptly because of electromagnetic attraction, in two movable touch knife 317a, 317b, length to the parallel conductor of contact site 321 effect electromagnetic attractions) lack when spacer block 331 is not set, the electromagnetic attraction that acts on the contact site 321 diminishes.Because the size of electromagnetic attraction is proportional to the length that electric current flows through unidirectional parallel conductor.And, diminish because act on the electromagnetic attraction of contact site 321 when closing a floodgate, so the contact site 321 of two movable touch knife 317a, 317b can be too not close, the MIN interval in the time of can keeping closing a floodgate.Thereby two movable touch knife 317a, 317b can close a floodgate smoothly for the chucking power of fixed electrode 314 in the time of can stablizing combined floodgate.

Between (2) two movable touch knife 317a, the 317b only by the fixing spacer block 331 of bolt 332 and nut 333, so the structure of movable electrode 317 is also uncomplicated.

The apex portion of (3) two movable touch knife 317a, 317b interconnects by spacer block 331.Thus, two movable touch knife 317a, 317b can not hold along with expanding significantly with the sliding contact of fixed electrode 314 during combined floodgate.Thereby, can guarantee two movable touch knife 317a, 317b MIN chucking power (curable grip) for fixed electrode 314.

(4) be fulcrum in the fixed position that the top ends of two movable touch knife 317a, 317b is provided with spacer block 331, can be separated from each other and approaching mutually direction on bend front and back two contact chips 323,324 of displacement.Like this, when closing a floodgate, front and back two contact chips 323,324 contact with the two sides of fixed electrode 314 with the contact pressure of stipulating because of expanding out with the sliding contact of fixed electrode 314.Thus, making smoothly, combined floodgate becomes possibility.

The 4th example

Below, the movable electrode structure of the gas switch of the present invention's the 4th example is described.The 4th example is a kind of air switch, and itself and the 3rd example difference are: it is provided with arc-extinguishing unit in fixed electrode one side.For this reason, the element structure identical with the 3rd example is marked with identical mark here, and the repetitive description thereof will be omitted.

As Figure 28 and shown in Figure 29, be equipped with conducting rod 351 on the inner of mains side sleeve pipe 312, the bottom of this conducting rod 351 is fixed with tabular fixed electrode 352 with bolt and nut.Again, the inner one side of mains side sleeve pipe 312 is provided with arc-extinguishing unit 353, to cover conducting rod 351 and fixed electrode 352.

As shown in figure 29, arc-extinguishing unit 353 comprises tabular arc control device installation component 354 and arc control device 355.The upper side of arc control device installation component 354 relative conducting rods 351 is fixing with bolt 356.Arc control device 355 cover conducting rod 351 and fixed electrode 352 from the below, with bolt 357 be fixed on arc control device installation portion 354 below.Arc control device 355 inside are gap arc control device 358, on a side sidewall of these gap arc control device 358 lower ends, are formed with and can insert mouthful 359a, a 359b by two movable touch knife 362a, 362b two.

On the other hand, as shown in figure 28, on the conducting rod 315 of load side sleeve pipe 313, be rotating fulcrum with pivot pin 316, supporting movable electrode 361 pivotally.As shown in figure 29, movable electrode 361 comprises a pair of movable touch knife 362a, 362b.Two movable touch knife 362a, 362b form dull and stereotyped L word shape.Between two movable touch knife 362a, 362b, accompany spacer block 331 at the top (the intersection point position that in the L word shape, is equivalent to two lines of form right angle) of tip side, and fix with bolt 332, nut 333.The tip side top of this two movable touch knife 362a, 362b in the zone of not disturbing arc-extinguishing unit 353, is positioned at the position near the top contact site when closing a floodgate.

Drive open-and-close mechanism portion, then movable electrode 361 is the center with pivot pin 316, moves between the release position shown in closing position shown in Figure 28 solid line and the double dot dash line.Two movable touch knife 362a, 362b insert mouthful 359a, 359b by two of arc-extinguishing unit 353 respectively, enter in the gap arc control device 358 with fixed electrode 353 contacts or separate.At this moment, spacer block 331 can not constitute interference to arc-extinguishing unit 353.Thereby, according to this example can obtain with the 3rd example in the described identical effect in (1)-(4).

Again, the 3rd and the 4th example also can be done following enforcement after changing.

In the 3rd example, do not disturbing two movable touch knife 317a of fixed electrode 314, the top of 317b, again, in the 4th example,, spacer block 331 is set respectively not disturbing two movable touch knife 317a of arc-extinguishing unit 353, the top of 317b.Perhaps, also can change into spacer block 331 is being set with upper/lower positions.Promptly, from the folding between two movable touch knife 317a, the 317b with the axle bearing position (being inserted with the position of connecting axle 318) of drive link 341 to arbitrary position on contact site 321 tops, so long as do not disturb the position of arc-extinguishing unit 353 or fixed electrode 314, spacer block 331 can be arranged at arbitrary position, for example, can be arranged near the top of two movable touch knife 317a, 317b or two movable touch knife 362a, 362b.So, compare the influence of electromagnetic attraction when more not being vulnerable to close a floodgate with the occasion that spacer block 331 is not set.

The 5th example

Below, with reference to Figure 30-Figure 34, the rotation preventive mechanism of the conducting rod in the switch sleeve pipe of the present invention's the 5th example is described.

The installing hole 411a of switch box body 411 is penetrated with the sleeve pipe 413 of tubular, this sleeve pipe 413 by press fit, is formed with the jack 413d of the conducting rod 414 of the diameter dimension small-diameter sized little than inner chamber 413a internal diameter size by pressing piece 412 between the inner chamber 413a bottom surface 413b of sleeve pipe 413 and the end face 413c of sleeve pipe 413.Form the engaging end difference 413e of conducting rod 414 by the bottom surface 413b of the opening that is formed with jack 413d.

The jack 413d of sleeve pipe 413 runs through and is supported with conducting rod 414, is formed with rivet hole 414a on the end of this conducting rod 414.The strand 416 of riveted joint leaded 415 on rivet hole 414a.The outstanding snap flange 414b that forms on the periphery of the end of conducting rod 414.This snap flange 414b is sticked on the engaging end difference 413c by packing ring 417.Pars intermedia peripheral shape at conducting rod 414 becomes outer screw section 414c, is formed with planar portions 414d, 414e (with reference to Figure 33, Figure 34) as notch part on this outer screw section 414c in parallel to each other.Have again, be formed with electrode installation portion 414f on the end of conducting rod 414, be formed with through hole 414g on its base end part.

Chimeric being fixed with in the end of sleeve pipe 413 around the containment member 418 of the outer screw section 414c of conducting rod 414.Insulating material such as containment member 418 usefulness nonferrous metal, rubber, synthetic resin form tubular.As shown in figure 31, containment member 418 is made of cylindrical portion 418a, the base plate 418b that is formed at cylindrical portion 418a one end, the perforation 418c that runs through outer screw section 414c.The base plate 418b of containment member 418 is fixed on the end face 413c of sleeve pipe 413 with binding agent 419.Equally spaced be formed with a plurality of (for example 4) spline engaging recessed part 418d with base plate 418b one on the inner peripheral surface of cylindrical portion 418a again.Have again, be formed with slot part 418e on the outer peripheral face of cylindrical portion 418a.

The outer screw section 414c of conducting rod 414 goes up to twist and has closed nut 420, accompanies spring washer 421 and spline plate 422 between the base plate 418b of this nut 420 and containment member 418.

Below, according to the structure of the exploded perspective view of Figure 32 explanation spline plate 422.Spline plate 422 is seen as circular from the front, and the central portion of its flat part 422a is formed with the roughly square shape jack 422b of the outer screw section 414c that runs through conducting rod 414.In the left and right sides of flat part 422a, with continuous rake 422c, the 422d of flat part 422a towards the lopsidedness bending opposite with containment member 418.Again, be formed with incision board 422e, 422f on the edge, the left and right sides of jack 422b as the incision teat, this incision board 422e, 422f from jack 422b to the base plate 418b of containment member 418 lopsidedness.The inclination angle of rake 422c and incision board 422e, identical with the relative flat part 422a in inclination angle of rake 422c and incision board 422f.Be formed with 4 engaging recessed part 422g that engage protuberance 418d engaging on the both ends of the end of rake 422c, 422d and flat part 422a with containment member 418.

As shown in figure 30, be rotatably mounted with movable electrode 423 on the electrode installation portion 414f of conducting rod 414.These movable electrode 423 nationalitys are by not shown open-and-close mechanism, and the fixed electrode that can be relatively arranged in the switch box body 411 is done corresponding contact, disengaging.

Below, do an explanation with regard to the assemble method of conducting rod in the switch sleeve pipe.

At first,, insert the strand 416 of lead-in wire 415, rivet by riveting machine to the rivet hole 414 of monomer conducting rod 414.

Secondly, use the inner chamber 413a that binding agent 419 is fixed with the monomer sleeve pipe 413 of containment member 418, seal 417 is being embedded under the state of conducting rod 414, inner chamber 413a one side of this conducting rod 414 from sleeve pipe 413 run through the jack 413d.

From the electrode installation portion 414f chimeric spline plate 422 of conducting rod 414, as shown in figure 33, each engaging recessed part 422g of spline plate 422 be sticked in each the engaging protuberance 418d of containment member 418 thereafter.At this moment, incision board 422e, the 422f of spline plate 422 are relative with specified gap for flat part 414d, the 414e of conducting rod 414, and the top ends of incision board 422e, 422f is connected to the base plate 418b of containment member 418.

Again helical spring 421 is embedded in outer screw section 414c, then nut 429 is twisted and close on outer screw section 414c.Then, screw in nut 420, push spline plate 422 by spring washer 421.Thus, make rake 422c, 422d that strain take place and be parallel to flat part 422a.Follow this strain, the top of incision board 422c, 422f is parallel to the strain of flat part 422a too.In the final stage that nut 420 screws in, rake 422c, the 422d of spline plate 422 and incision board 422e, 422f the is state parallel, planar portions 414d, the 414e of the top incision conducting rod 414 of incision board 422e, 422f with flat part 422a.

As mentioned above, after the assembling that finishes 414 pairs of sleeve pipes 413 of conducting rod, sleeve pipe 413 is penetrated the installing hole 411a of switch box body 411, fixing with pressing piece 412.On the electrode installation portion 414f of conducting rod 414 movable electrode 423 is installed.

Secondly, narrate the structure and the effect of the rotation preventive mechanism of conducting rod on the switch sleeve pipe simultaneously.

(1) on the flat part 422a of spline plate 422, forms jack 422b, this jack 422b is cut out formation incision board 422e, the 422f corresponding with planar portions 414d, the 414e of conducting rod 414, therefore, with nut 420 when fastening, planar portions 414d, the 414e of incision board 422e, 422f incision conducting rod 414, can reliably stop conducting rod 414 in sleeve pipe 413, to relatively rotate, and can prevent that it is loosening.

Thereby, after switch box body 411 that will be as shown in figure 30 is installed on the electric pole etc., in the time of will being installed on other not shown conducting terminals from the lead-in wire 415 that sleeve pipe 413 is drawn, if the torque of the direction of arrow is on lead-in wire 415, then conducting rod 414 desire in the jack 422b of spline plate 422 is rotated.Yet, since not loosening between conducting rod 414 and the spline plate 422, so the assembling position of movable electrode 423 can not depart from normal position.Its result can correctly keep the corresponding relation of movable electrode 423 and fixed electrode, carries out opening and closing movement swimmingly.

(2) on the flat part 422a of spline plate 422, be provided with rake 422c, 422d, because be this rake 422c, 422d and incision board 422e, 422f are formed at respectively on the same inclined plane, so, when fastening, can increase the incision power of incision board 422e, 422f with above-mentioned nut 430.

Again because in the process that rake 422c, 422d become parallel with flat part 422a, be pushed on the engaging protuberance 418d at the engaging recessed part 422g that its rake 422c, 422d form, so the containment member 418 and the fastening state of spline plate 422 are become firmly.

(3) spline plate 422 can be by a sheet material compression moulding, and it is easy to manufacture.

(4) because the inner peripheral surface of containment member 418 is provided with engaging protuberance 418d, periphery at spline plate 422 is formed with engaging recessed part 422g, therefore, the external diameter of containment member 418 and spline plate 422 can be increased, relatively rotating of they can be stoped by simple structure.

(5) owing to be, therefore, can improve the dielectric strength of two component spaces, strengthen the insulation between charging part (conducting rod 414) and the switch box body 411 with the inner face of binding agent 419 fixed sleevings 413 and the base plate 418b of containment member 418.Its result can improve proof pressure, and the outstanding size of reentrant bushing in switch box body 411 makes whole box body miniaturization.

Again, the 5th example of the present invention also can be done following change.

As shown in figure 35, can omit rake 422c, the 422d of spline plate 422.At this moment, incision board 422e, 422f make strain by nut 420 and spring washer 421, planar portions 414d, the 414c of incision conducting rod 414.

As shown in figure 36, can on the base plate 418b of containment member 418, dash forward and establish engaging protuberance 418f, and on the flat part 422a of spline plate 422, form connecting hole 422g as engaging recessed part.

As shown in figure 37, also the profile of spline plate 422 can be made square, be formed for limiting the limiting holes 418g of its profile, to stop relatively rotating of containment member 418 and spline plate 422 at the base plate 418b of containment member 418.

In other examples as shown in figure 36, also can be when molded formation containment member 418, spline plate 422 inserted be shaped.At this moment, containment member 418 fixedly connected spline plates 422 can not relatively rotate it relatively.

Formed engaging recessed part 422g also can uniformly-spaced be provided with 2,3 or 6 places on spline plate 422 neighborings.

The 6th example

Below, with reference to Figure 38-Figure 42, the switch box body of the 6th example of the present invention is described.

As shown in figure 42, switch box body 511 covers four square box shape main cartridges, 412 Hes by lower ending opening, and the ends four square box shape box cover 513 that has that covers main cartridge 512 512a of lower ending opening portion constitutes.As shown in figure 41, be formed with cubic annular flange portion 512b in the 512a of lower ending opening portion of main cartridge 512 periphery.At the outstanding laterally brace 512c that forms of the four corner parts difference all-in-one-piece of flange part 512b.On the other hand, the periphery of the upside peristome 513a of box cover 513 is formed with the flange part 513b of cubic ring-type, and its four bights are integral the outstanding laterally brace 513c that is formed with respectively.Between flange part 512b and flange part 513b, accompany seal 514, run through inserting bolt 515 being formed on the jack 513d that forms on jack 512d on each brace 512c and each brace 513c.As shown in figure 40, by twisting the nut 516 that closes on bolt 515, flange part 512b and 513b can be fixed on the seal 514.Again, in the 6th example, as shown in figure 41, the jack 512d of main cartridge 513 is circular, and the jack 513d of box cover 513 is an elongated hole.Thus, can finely tune the box cover 513 and the binding site of main cartridge 513.

As Figure 38, shown in Figure 39, flange part 512b is formed the cross section of L word shape by horizontal plate part 512e and vertical plate part 512f.Again, flange part 513b is formed by the inclination board 513e of cross section by Eight characters shape.Between flange part 512b and flange part 513b, be formed with the seal receiving space 517 that its cross section that is used to accommodate seal 514 is roughly triangle.

Seal 514 comprise main body 514a, with main body form one the 514b of triangle portion, be formed at a plurality of sealed batten 514c of main body 514a and triangle portion 514 outsides.At the snap-latch piece 514d that is integrally formed into many places (in the 6th example, as shown in figure 41, being 5 places) on the circumferential lateral surface of the 514b of triangle portion.Snap-latch piece 514d is sticked in the limit, lower end of the vertical plate part 512f of flange part 512b as shown in figure 39.As shown in figure 41, be formed with the raised line 514e that is the flat circle arcuation respectively on the outer peripheral face in 4 of seal 514 bights.

As shown in figure 42, the mains side sleeve pipe 521 and the load side sleeve pipe 522 of three-phase is installed on main cartridge 512 left and right sides again.Again, be provided with not shown fixed electrode and movable electrode in the switch box body 5211, swing, carry out the access and the disconnection of circuit by folding operating mechanism movable electrode.

The assembling of switch main cartridge 511 is as described below to be carried out.Turned upside down main cartridge 512 on desk (not shown), installation seal 514 on flange part 512b.At this moment, each snap-latch piece 514d is sticked in vertical plate part 512f.Secondly, the flange part 513b of configuration box lid 513 on seal 514 upwards interts by the jack 512d of brace 512c and the jack 513d of brace 513 bolt 515, nut 516 is twisted close in bolt 515, by this, seal 514 can be anchored between flange part 512b and the 513b.

Below, the effect of narration switch box body 511.

(1) the flange part 512b on the end limit of the peristome 512a that is formed at main cartridge 512, and be formed between the flange part 513b on the ora terminalis of peristome 513a of box cover 513, forming the cross section is the seal receiving space 517 of triangle.By this, shown in Figure 38-40, seal 514 between flange part 512b and flange part 513b fastened in, seal 514 can be not laterally or inboard displacement is taken place, and remains in suitable position but be held.Again, flange part 512b as shown in figure 38, its bend only is C1, C2 two places, can carry out punch forming operation easily.

(2) outside of seal 514 is formed with snap-latch piece 514d, makes this snap-latch piece 514d be sticked in the end limit of the vertical plate part 512f of flange part 512b.For this reason,, when pushing flange part 513b, can stop the position deviation of seal 514 side direction in level, seal 514 clampings are remained on the appropriate location making under seal 514 and the flange part 512b state of contact.Therefore can prevent at seal 514 assembled under the state of disengaging seal receiving space 517.

(3) owing on the two sides up and down of seal 514, being formed with many sealed batten 514c, so can improve the sealing on the composition surface of seal 514 and flange part 512b and 513b.

(4) owing on the two sides up and down of seal 514, be formed with a plurality of outstanding laterally raised line 514e, therefore, protrude in the vertical plate part 512f butt that the outside forms on raised line 514e and the flange part 512b corner part, seal 514 can be kept in position by this.

Again, the 6th example also can be done following change and specialize.

Example system as an inclination board, forms the snap-latch piece 514d that is sticked in inclination board 513e outer end edges with the inclination board 513e of flange part 513b on the part outer peripheral face of seal 514 shown in Figure 43 (a).Shown in Figure 43 (b), also can form snap-latch piece 514d it is sticked on the vertical plate part 512f.

Shown in Figure 43 (c), also can form flange part 512b by inclination board 512g and vertical plate part 512f, level forms the flange part 513b of box cover 513.Also can shown in Figure 43 (d), form two flange part 512b and 513b, and form vertical plate part 512f and vertical plate part 513f by inclination board 512g and inclination board 513e.

And for example shown in Figure 43 (e), flange part 512b is bent into the cross section ヘ word shape that is made of two inclination board 512g, and horizontal curvature forms flange part 513b.

In the example shown in Figure 43 (a)-(e), the bend of flange part 512b is C1, C2 two places, can easily carry out the punch forming operation.Again, in the example shown in Figure 43 (a)-(c), (e), the bend of flange part 513b only is a place, and its cross sectional shape is simple, the punch forming processing ease.

Shown in Figure 44 (a), the cross section of seal 514 or make toroidal, or shown in Figure 44 (b), make elliptical shape, or shown in Figure 44 (c), make the body of one who has dropped dead by the roadside trapezoidal shape, also can be shown in Figure 44 (d), make swelling-waist shape, or shown in Figure 44 (e), make the rectangle of horizontal length.These seals 514 in use, its cross section can strain be a triangle roughly.

As shown in figure 45, also can form the next door 514g that interconnects sealed batten 514c on the groove 514f that forms between each sealed batten 514c in many places.In Figure 45, one side next door 514g is respectively equipped with 3-4 at seal 514.

At this moment, just in case the part generation poor sealing of the sealed batten 514c of seal 514 when impurity enters in the groove 514f, can prevent that also this impurity from moving to whole groove.Again, next door 514g is not arranged in abutting connection with the same position of the groove 514f in next door, but the setting of grinding one's teeth.Can prevent that thus sealed batten 514c from going up the strength variance that produces the part, to obtain the evenly whole of sealing surface.

The next door 514g of groove 514f as shown in figure 45 also can be embodied as the seal 514 shown in Figure 44 (a)-(e) respectively.Can consider that also it is outside the leg-of-mutton seal receiving space 517 that these seals 514 are applied to its cross sectional shape, for example the seal receiving space 517 of parallel shape.

Claims (8)

1. switch build-in components supporting structure, described open relation are intercalated in each with switch with build-in components (36,37) and relatively run through sleeve pipe (21, the 22) end that is supported on main cartridge (12) two side mutually, it is characterized in that,

Between described build-in components and main cartridge, be provided with build-in components and this main cartridge butt and described build-in components pressed to the insulating properties elastic pressurizing element (31c of main cartridge inboard, 71,77,78), in main cartridge, also be provided with the plus-pressure of the described pressing element of opposing and with this build-in components butt and limit the align member (41) of build-in components to the main cartridge medial movement.

2. switch build-in components supporting structure as claimed in claim 1, it is characterized in that, described align member is insulating element (41), described insulating element is located at the fixed electrode (23) of a side cannula tip by covering and is located at opposite side cannula tip, relative fixed electrode rotationally and can carries out the insulation between alternate and ground connection from, the movable electrode (26) that closes.

3. switch build-in components supporting structure as claimed in claim 1 or 2, it is characterized in that, described insulating properties elastic pressurizing element is integrally formed with the inside and outside airtight containment member (31b) of maintenance main cartridge, the sealing member is formed at the outside of main cartridge (12), (21a is 22a) and between main cartridge (12) lateral surface to be clipped in the flange that is formed at sleeve pipe.

4. switch build-in components bearing support, described bearing support is used for propping up bearing switch build-in components (36,37), this switch build-in components (36,37) be intercalated in each and mutually relatively run through the end of the sleeve pipe (21,22) that is supported on the main cartridge two side and be located between the inside sidewalls face and align member (41) of main cartridge (12), this build-in components bearing support is installed on the sleeve pipe that is formed on main cartridge (12) sidewall and runs through portion (12a), it is characterized in that

Described bearing support is formed by the elastomeric material with insulating properties, comprise: intercalation has the tubular support (31a) of sleeve pipe, and be located at this support, when the mounting support frame between the inside sidewalls face of main cartridge and build-in components and build-in components is pressed to the elastic pressurizing element (31c of main cartridge inboard, 71,72,78), described build-in components is because of the plus-pressure and the described align member butt of described pressing element, and described thus build-in components is limited by described align member to the mobile of main cartridge inboard.

5. switch build-in components bearing support as claimed in claim 4, it is characterized in that, described bearing support also is included in when bearing support is installed, be located at the outside of described main cartridge and be clipped in and be formed at sleeve pipe (21, flange 22) (21a, 22a) and the containment member between the main cartridge outer wall (31b).

6. switch build-in components bearing support as claimed in claim 5 is characterized in that described elastic pressurizing element and described containment member are integrally formed by the insulating properties material.

7. as claim 4 or 5 described switch build-in components bearing supports, it is characterized in that described elastic pressurizing element forms circular cone shape.

8. as claim 4 or 5 described switch build-in components bearing supports, it is characterized in that described elastic pressurizing element is many pieces of lugs from the oblique extension of support.

Images