CN205355290U - Be fit for heavily polluting transformer link fitting who uses in area - Google Patents

Abstract

The utility model discloses a be fit for heavily polluting transformer link fitting who uses in area, include the sleeve that has plasticity with the terminal suit complex of low pressure kettle head, sleeve one side is equipped with the fault trough that cuts off the sleeve lateral wall and forms two dilapidated walls that correspond with the fault trough, set firmly along the outside arm lock of extending of dilapidated walls on the sleeve outer wall that corresponds with dilapidated walls, be equipped with corresponding double -layered hole in two arm lock, it has through the arm lock with the collet head clamp bolt on the terminal tightly to press from both sides downthehole cartridge, the wiring board that upwards extends sets firmly on the sleeve opposite side outer wall, the wiring board is connected with the cable through locking device. The advantage is: rational in infrastructure, installation wiring is convenient, and area of contact is big, contact resistance is little, difficultly takes place the overheated and accident of burning out, and the cleanliness is good, is difficult for being infected with the dust, and job stabilization is reliable, after long -term the use not can because of the vibration nut not hard up lead to generating heat burn out the screw thread post or the lacuna accident that opens circuit, longe -lived, the maintenance period is long, the operation cost is low, is fit for the serious area use at air pollution.

Description

It is adapted at the transformator connection gold utensil that heavily contaminated area uses

Technical field

This utility model relates to being adapted at the transformator connection gold utensil that heavily contaminated area uses.

Background technology

Transformator is a kind of static electrical equipment converting alternating current, is mainly used in being transformed to the AC energy of a kind of electric pressure the AC energy of the another kind of electric pressure of same frequency.Structure is mainly made up of primary winding, secondary coil, stalloy three part, being of wide application in power system.

At present, the structure of traditional transformer low pressure kettle head is all be arranged below the porcelain seat of an insulation, and a coaxial fixed binding post on porcelain seat has tightened nut on binding post.When installing and using, it is necessary to the metallic plate set of power cable is installed on binding post, then fastening nut.The structure of traditional transformer low pressure kettle head is relatively easy, installation wiring is convenient to, but this transformator has following defects that 1 in reality is run, binding post by the metallic plate compression fit of nut and cable thus realizing electrically connecting, and binding post contacts simply by the screw thread silk of binding post and nut with nut, actual low pressure kettle head screw and the electric energy of calculating exports external wire and crimps contact area a little and only have about 4, therefore contact area is less, causes that contact resistance is bigger；2, lacking preventer, if being placed in outdoor for a long time, dust, acid rain etc. can block nut and binding post gap, the screw thread silk of corrosion nut and binding post, reduce both contacts area further, and then increase contact resistance；3, secondary coil outlet point namely low pressure kettle head place electric current are bigger, electric current conducts electricity only by screw thread silk (i.e. the silk of screw), very easily cause when electric current is big that binding post is overheated and burn the binding post of low pressure kettle head, cause circuit phase shortage, burn electrical equipment, cause company property loss, civil disputation occurs, reduce power supply reliability index；4, service life is short, and maintenance period is short, safeguards that operation cost is high；5, the vibration of bigger frequency can be produced during transformator work, likely causing nut loosening after life-time service, once there is nut loosening phenomenon, the connection of nut and binding post will close on the high-impedance state of open circuit, now gently then burn out the screw of binding post and nut, heavy then directly result in open circuit lacuna；6, severe along with air quality, the impurity such as the dust in air get more and more, particularly more serious in this phenomenon in heavily contaminated area, in these areas, transformator connects the especially easy impurity such as accumulate dust of assembly surface, life-time service readily permeable enter in each interface components, cause that contact resistance increases, heating burnout Frequent Accidents.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of rational in infrastructure, installing easy-to-connect, contact area is big, contact resistance is little, is not susceptible to overheated and burnout failure, cleannes are good, not easily covered with dust, stable and reliable in work, heating burnout binding post or open circuit lacuna accident will not be caused because of vibration nut loosening after life-time service, long service life, maintenance period is long, and operation cost is low, is adapted at the transformator connection gold utensil being adapted at the use of heavily contaminated area that air pollution seriously area uses.

For solving above-mentioned technical problem, originally it is adapted at the transformator that heavily contaminated area uses and connects being structurally characterized in that of gold utensil: what include that the suit of the binding post with low pressure kettle head coordinates has plastic sleeve, sleeve side is provided with fault trough sleeve lateral wall cut off and forms two dilapidated walls corresponding with fault trough, the sleeve outer wall corresponding with dilapidated walls is installed with along the outward extending jig arm of dilapidated walls, two jig arm are provided with the folder hole of correspondence, it is fitted with sleeve clamping fishbolt on binding post in folder hole by jig arm, sleeve opposite side outer wall is installed with upwardly extending patch panel, patch panel is connected to cable by locking device, fault trough is arranged to the wide wedge shape of the narrow lower port of upper port so that sleeve forms the cone that thin lower end, upper end is thick, sleeve lining is evenly equipped with interior pod extended up and down, the cross section of interior pod is the isosceles triangle that width portion is arranged towards sleeve axial line, binding post periphery is evenly equipped with extended up and down and vertical muscle in arranging with interior pod one_to_one corresponding, the cross section of interior vertical muscle is the isosceles triangle that tip is arranged towards interior pod, binding post axle center part is provided with the uith screw chamber that oral area sets up, the cavity wall of uith screw chamber is equipped with female thread, sleeve inner top surface is coaxially installed with the interior stud downwardly extending setting, interior stud is equipped with the external screw thread matched with female thread.

Originally the transformator connection gold utensil being adapted at the use of heavily contaminated area is to realize rational in infrastructure by clamped-in style sleeve structure, installing easy-to-connect, contact area is big, contact resistance is little, is not susceptible to overheated and burnout failure, cleannes are good, not easily covered with dust, stable and reliable in work, heating burnout binding post or open circuit lacuna accident will not be caused because of vibration nut loosening after life-time service, life-span is long, maintenance period is long, and operation cost is low, is adapted at what air pollution seriously area used.

Clamped-in style sleeve structure mainly includes being set with, with binding post, the sleeve coordinated, and the sidewall of sleeve side is provided with fault trough.Because the section of fault trough radially extends setting along sleeve, therefore arranged outside in the through sleeve lateral wall of fault trough.Because the section of fault trough also along sleeve axially under extended, therefore the upper and lower two ends of fault trough also through sleeve lateral wall are arranged.So, sleeve lateral wall is just cut off and is come by fault trough, makes whole sleeve sidepiece form the slot-shaped side port of a complete open type.Because sleeve is round tube shape structure, after arranging fault trough, the cross section of whole sleeve is just in " C " shape.For convenient narration, the section of the sleeve lateral wall formed after cutting fault trough being called dilapidated walls, so, sleeve just has two dilapidated walls close to each other, and fault trough is between two dilapidated walls.

In this patent, sleeve outer wall being fixedly provided with two jig arm, jig arm is arranged near dilapidated walls, and a sidewall of jig arm is corresponding with dilapidated walls to be connected and be positioned in a plane.So, two jig arm are equivalent to the extension that dilapidated walls are outside, and two jig arm also intervals are arranged.Because sleeve is made up of metal material, it is generally alloy, therefore both there is good plasticity.As it was previously stated, sleeve cut off by fault trough after in " C " shape, and two jig arm are placed exactly in two ends of " C " shape sleeve, therefore drive the sleeve plastic deformation of " C " shape will be more laborsaving by jig arm.When two jig arm are subject to chucking power and move towards, two jig arm will drive the deformation of " C " shape sleeve synchronizing moving namely two jig arm line swinging deformation in opposite directions centered by sleeve axial line.In this patent, two jig arm are provided with the folder hole of correspondence, are fitted with fishbolt in folder hole, and what provide chucking power to two jig arm is exactly this fishbolt.When tightening fishbolt, two jig arm will be extruded by fishbolt, and now two jig arm move towards, and " C " shape sleeve is also drive by jig arm and shrinks to axial line, for convenience of narration, this state be called clamped condition or contraction state.When contraction state, barrel bore diameter diminishes, and sleeve diameter is less than binding post external diameter, and therefore sleeve lining will tightly be wrapped on binding post outer wall, it is ensured that the reliability of sleeve and binding post electrical connection.Obviously, the contact resistance of the degree of tightening of fishbolt, sleeve and the clamping degree of binding post, sleeve and binding post, this three is proportional relation.That is, fishbolt is twisted more tight, sleeve plastic deformation is more thorough, and sleeve and binding post just clamp more tight, and the contact resistance of sleeve and binding post is more little, and binding post heating probability is more low.Therefore, when using this patent, only need to tighten fishbolt to attach the casing on binding post, operate very simple.And when needing to dismantle, only need to unclamp fishbolt, and the screwdriver carried with electrician inserts fault trough and pries open or strut two jig arm, " C " shape sleeve can be strutted into the tubular structure of larger interior diameter, complete the plastic deformation extended out, thus easily sleeve can be taken off from binding post, operate very simple.For convenience of narration, " C " shape sleeve can be called softened state or extended configuration from the state that binding post departs from.When extended configuration, sleeve diameter is much larger than binding post external diameter, and therefore now sleeve can freely move axially along binding post or circumferentially rotate.Obviously, only need to control the contraction state of " C " shape sleeve or extended configuration, being reliably connected and easily separating of sleeve and binding post can be realized, simple to operate, safeguard or replacing being convenient to.

Being fixedly provided with patch panel on sleeve, patch panel is positioned at the opposite side of sleeve, is oppositely arranged with jig arm.Patch panel is slab construction, extended straight up, so not only facilitates wiring, and without influence on the safe distance of adjacent thread post.Patch panel is provided with locking device, it is operated by locking device and can make that patch panel and cable are fixing to be electrically connected, thus achieved the reliable output of electric energy by the reliable electrical connection of threaded post, sleeve, patch panel and locking device, it is ensured that in service life, reduce maintenance cost.

In this patent, sleeve lining being evenly equipped with interior pod, interior pod is extended up and down.The cross section of interior pod is isosceles triangular structure, and the bottom of the wide portion of interior pod namely isosceles triangle is arranged towards sleeve axial line.So, in adjacent two, the cell wall of pod also can constitute a dentalation, and the cross section of this dentalation is also in isosceles triangle, for convenience of narration, this dentalation is called " rake tooth ".In this patent, binding post periphery being evenly equipped with interior vertical muscle, interior vertical muscle is extended up and down.The interior vertical quantity of muscle is identical with the quantity of interior pod, and in therefore, vertical muscle and interior pod one_to_one corresponding are arranged.In this patent, the cross section of interior vertical muscle is also in isosceles triangle, and interior vertical muscle is arranged towards the direction of interior pod according to tip.The purpose so arranged, is make sleeve when being set with binding post, as long as making in one pod in vertical muscle alignment, then ensure that all interior vertical muscle all align interior pod, it is ensured that the accuracy of cooperation.In this patent, being provided with a uith screw chamber in binding post, uith screw chamber is positioned at the axle center part of binding post.Uith screw chamber is cylindrical structural, and uith screw chamber and binding post are coaxially disposed.In this patent, uith screw chamber oral area sets up, and such uith screw chamber is exactly a cylinder-like structure with upward opening.Being equipped with female thread in the cavity wall of uith screw chamber, female thread extends to bottom uith screw chamber from uith screw chamber upper end.

In this patent, sleeve is that oral area is arranged downwards, and sleeve so can be facilitated to be set with binding post extended upward from the top down, one of this advantageous effect being set as.The two of the advantageous effect that sleeve oral area is arranged downwards, it is exactly after sleeve set binding post, because sleeve top blocks, therefore sleeve serves the effect blocking dust and other impurities, ensure that sleeve lining and the spatter property of binding post sidewall, namely after can guarantee that locking device life-time service, still can keep the ability of less contact resistance, it is particularly suitable in the heavier area use of air pollution.Being installed with the interior stud downwardly extending setting on sleeve inner top surface, interior stud and sleeve are coaxially disposed.Interior stud is equipped with external screw thread, external screw thread and the female thread threaded in uith screw chamber.As previously mentioned, when extended configuration, sleeve phase pairs of posts can freely move axially or freely circumferentially rotate, it is therefore desirable to when attaching the casing on binding post, only by the uith screw chamber oral area of interior stud lower end aligned binding post, then interior stud need to be screwed in uith screw chamber.When interior stud is completely screwed into uith screw chamber, sleeve also just overlaps completely and has installed on binding post, for convenience of narration, this state is called screw-in state.When the state of screw-in, the external screw thread of interior stud periphery and the female thread snug fit of uith screw chamber, therefore its contact area rate is common optical axis and the assembling conjunction of light inserting are much bigger, greatly reduce the contact resistance of interior stud and binding post, effectively prevent heating burnout accident.In order to sleeve is locked on binding post, it is necessary to fishbolt inserted in the folder hole of jig arm and tighten gradually.Arranging as it was previously stated, the interior pod on sleeve lining and the interior vertical muscle on binding post periphery are one_to_one corresponding, therefore in the process tightening fishbolt gradually, Nei Zong influential point of tendons slowly shifts to interior pod.When fishbolt is tightened completely, interior vertical muscle and interior pod snug fit one by one, now sleeve completes plastic shrinkage, and tightly ladle cover is on binding post, namely sleeve reaches clamped condition.When clamped condition, because the interior vertical muscle of the interior pod of sleeve lining and binding post periphery is tightly to fit together, and the cross section of interior pod and interior vertical muscle is all isosceles triangle, therefore the contact area of both contact area rate tradition optical axis and light set connected mode is much bigger.So, the contact area of sleeve and binding post not only includes uith screw chamber and the contact area of interior stud, also includes interior pod and the contact area of interior vertical muscle, and all coordinates very tight, greatly reduce the contact resistance of sleeve and binding post, effectively prevent heating burnout accident.In this patent, sleeve is when extended configuration, and fault trough is the wedge shape that the narrow lower port of upper port is wide, and now, whole sleeve is the cone that thin lower end, upper end is thick, the barrel bore cone that also thick lower port is thicker than binding post in upper port and binding post etc..The purpose so arranged, one be in order to binding post set sleeved time, it is possible to sleeve need not be accurately aimed at binding post and just quickly sleeve oral area can be buckled and cover on binding post；Two is that sleeve oral area after expanding can facilitate installation personnel to see the interior stud of sleeve inner, interior stud end so only need to be directed at uith screw chamber and can complete accurately docking of sleeve and binding post, greatly reduce installation difficulty, be favorably improved work efficiency.

In this patent, because interior pod and female thread are both along the axially extending setting of binding post, therefore, when clamped condition, if not adopting violence to be separated with binding post by sleeve by force by unclamping fishbolt mode, sleeve and binding post can only be applied axial tension in opposite direction.Similar, because the screw thread on interior stud and uith screw chamber is all substantial transverse setting, namely it is approximately axially vertically disposed with binding post, therefore, when clamped condition, if not adopting violence to be separated with binding post by interior stud by force by unclamping fishbolt mode, internal stud and binding post can only be adopted to apply horizontal torsion in opposite direction or revolving force, namely sleeve and binding post be applied horizontal torsion in opposite direction or revolving force.In sum, in the clamp state, if not adopting the mode unclamping fishbolt, and when adopting pairs of posts and sleeve applying axial tension violence in opposite direction to pull, although the resistance that the interior pod of clamped condition and interior vertical muscle now produce is little, but the horizontal thread of the interior stud of threaded and uith screw chamber will produce great resistance, therefore cannot realize separating；If adopt pairs of posts and sleeve to apply circumferential torsion in opposite direction or revolving force violence rotation, although the interior stud of clamped condition and uith screw chamber will not produce excessive resistance, but the interior pod of axially extending setting and interior vertical muscle will produce great resistance under clamped condition, therefore also cannot realize separating.In brief, when clamped condition, only by unclamping fishbolt mode, sleeve is separated from binding post, otherwise adopt violence mode also not all right, fundamentally ensure that the reliability of the affixed reliability of this patent, electrical connection, this is also one of the innovative point of this patent.

As improvement, described interior stud lower end is coaxially installed with tip conical blocks down, being equipped with the helical tooth arranged from the external screw thread spiral extension of the inside stud in conical blocks tip on the conical surface of conical blocks, helical tooth lower end is round and smooth with the external screw thread upper end one_to_one corresponding of interior stud to be connected.

After the fixed conical blocks in interior stud lower end, down and it is coaxially disposed with interior stud because conical blocks is tip, therefore before interior stud inserts uith screw chamber, the tip of conical blocks can first be inserted in uith screw chamber, and stud inserts in uith screw chamber smoothly in being guided by its conical outside face, therefore conical blocks have stud in auxiliary quickly, the guide effect that is properly inserted in uith screw chamber.In this patent, the conical surface of conical blocks being equipped with some helical tooths, along taper seat from conical blocks tip to conical blocks, periphery spiral extension is arranged helical tooth.On helical tooth and interior stud, external screw thread one_to_one corresponding is arranged, and the lower end of all helical tooths is connected with each self-corresponding external screw thread upper end rounding off.The benefit so arranged is, when conical blocks inserts uith screw chamber inner chamber, no matter whether conical blocks is co-axially inserted uith screw chamber, owing to protruding from the existence of the helical tooth of the conical blocks conical surface, in helical tooth can touch uith screw chamber inwall prior to the conical blocks conical surface and slip into the female thread of uith screw chamber inwall.Along with conical blocks is gradually inserted uith screw chamber, the helical tooth snapping in female thread can progressively go deep in female thread.When stud in being rotated by sleeve, helical tooth can guide in the female thread screwing into uith screw chamber upper end of interior stud lower end, and such helical tooth just serves and guides the guiding that external screw thread slips into female thread to slip into effect.When continuing turnbarrel, the external screw thread of interior stud just screws in the female thread of uith screw chamber smoothly, namely interior stud screws in uith screw chamber smoothly, it is ensured that the success rate of sleeve and the cooperation of binding post plug-in mounting and smoothness, also improves installment work efficiency.

In the present embodiment, the through slot that the cross section that described locking device includes being arranged in patch panel is rectangle and oral area sets up, through slot is arranged along the through patch panel of patch panel length direction, two double walls are formed between cavity wall and the wooden partition of patch panel of through slot, double wall is provided with the locking hole of correspondence, clamping screw it is fitted with in locking hole, also include the cable core suit with cable and lock friction tight sleeve pipe, cannula end is installed with two terminal boards be arrangeding in parallel, two ends are fixedly connected with location-plate between daughter board upper surface, location-plate end face is the arc that the high edge in middle part is low, location-plate edge is installed with outward extending extension, terminal board cross section is identical with through slot cross section, a clip slot is formed between the daughter board of two ends, clip slot, terminal board, through slot is identical with double wall thickness, terminal board is provided with terminal hole, during terminal board fully-inserted through slot, the connecting portion snug fit of double wall end and two ends daughter board and the terminal hole extension simultaneously that aligns with locking hole is adjacent to block with double wall end face and coordinates.

In this patent, being compressed by hydraulic way after sleeve pipe suit cable inner core, such sleeve pipe just can crimp into a single integrated structure with cable inner core, thus realizing electrically connecting with the reliable of cable with sleeve pipe.Sleeve pipe latter end is fixedly connected with terminal board, and terminal board is slab construction, and terminal board is provided with through the terminal hole of terminal board thickness.In this patent, the quantity of terminal board is two, be arranged in parallel, forms a clip slot between the daughter board of two ends.Sleeve epimere is installed with a patch panel, and patch panel is also slab construction.The plate face of patch panel is vertically arranged, and so can reduce the transverse width of this patent, fundamentally improves the safe distance between phase line.For convenience of narration, the distance between patch panel two plate face is called thickness, upper and lower for patch panel distance is called height, patch panel plate face lateral separation is called length.Being provided with the through slot that an oral area sets up in connecting plate, and through slot is along the through setting of patch panel length direction, the vertical section of such patch panel is exactly a "U" shaped structure.In this patent, through slot is identical with the cross section of terminal board, be all height more than the rectangle of width and equivalently-sized, therefore terminal board can insert in through slot smoothly, and both are snuggly mated to together.After through slot is set, it is the formation of two support arms in through slot both sides.For convenience of narration, by the support arm of through slot both sides, namely the patch panel entity part between through slot side chamber wall and patch panel sidewall is called double wall.In this patent, double wall being provided with locking hole, the locking hole on two double walls is correspondingly arranged, and is fitted with clamping screw in locking hole.In this patent, through slot, double wall, clip slot, terminal board thickness are identical, and therefore, when a terminal board is inserted in through slot, a double wall also corresponding plug-in mounting enters in clip slot, and the adjacent surface of double wall and terminal board is snug fit.For convenience of narration, this state is called the state of being seated.Under being seated state, bottom double wall end and clip slot namely the convergence part also compression fit of two ends daughter board, and locking hole and the alignment of terminal hole one_to_one corresponding are arranged.Accordingly, it would be desirable to when connecting plate is connected cable, only a terminal board need to be inserted through slot, make up to the state of being seated, it is inserted into clamping screw and tightens, patch panel and terminal board locking can be made into a single integrated structure, namely achieving the reliable electrical connection of patch panel and cable.For convenience of narration, the state being seated under state clamping screw and tightening is called locking state.In this patent, being fixedly connected with a location-plate between daughter board upper surface, two ends, location-plate serves the fixing effect supporting two ends daughter board, improves both structural stabilities.In this location-plate, the end face of location-plate is the arc that the high edge in middle part is low, so can avoid piling up dust or rainwater, it is ensured that the overall spatter property of locking device, help avoid heating accident.Location-plate edge is installed with outward extending extension, extension and two double wall end faces are correspondingly arranged, the dust from location-plate arc top surface landing or rainwater so can be avoided to enter through slot, ensure that the spatter property of through slot, fundamentally avoid and cause that because the impurity such as dust enter contact resistance increases the heating accident caused.No matter under being seated state or in the locked condition, three plate faces of one terminal board and the three of through slot corresponding compression fit in face, chamber, the interior plate face of a terminal board and adjacent double wall lateral surface compression fit, clip slot bottom surface and adjacent double wall end face compression fit, location-plate inwall and corresponding double wall end face compression fit, one has 6 plate face compression fit, contact area is greatly increased relative to conventional coupling arrangement, contact resistance is substantially reduced, fundamentally ensure that the reliability that both electrically connect, effectively prevent connection heating and burnout failure.When needing demolition and maintenance, only need to unclamp clamping screw, then terminal board be extracted out through slot, operates very simple.After long-term use, running into and cause when clamping screw loosens because of vibration, still can not come off from locking hole due to clamping screw, therefore terminal board and patch panel are still had positioning action by clamping screw, make both still tightly plug-in, namely be changed into, by locking state, the state of being seated.As previously mentioned, under being seated state, this locking device still has the snug fit relation in 6 plate faces, contact area is unchanged, simply contact pressure is more slightly smaller, therefore on the impact of contact resistance little, namely under the premise that clamping screw loosens, this locking device still can guarantee that reliable electrical connection, fundamentally avoids heating and burnout failure.

Described terminal board wooden partition is evenly equipped with along the extended translot that cross section is V-arrangement of terminal board length direction, through slot cavity wall is provided with, with being evenly equipped with the horizontal bar that the cross section corresponding with translot is △ shape, locking hole and terminal hole outer end on the sidewall of patch panel, the counterbore coordinated with clamping screw end splendid attire.

For convenience of narration, plate face patch panel and terminal board being mutually adjacent to is called the face of being adjacent to.In this patent, being adjacent on face and be evenly equipped with some translots of terminal board, translot is extended along terminal board length direction.Being adjacent on face and be evenly equipped with some horizontal bars of patch panel, horizontal bar is horizontally extending setting also.Because the cross section of translot and horizontal bar is V-arrangement and the △ shape of corresponding matching, therefore terminal board is when inserting through slot, and translot and horizontal bar can play promotes the guide effect slided, and this is one of its effect.When being seated state, not only horizontal bar is correspondingly embedded in translot, the setting and terminal hole and locking hole also align one by one.After tightening clamping screw, horizontal bar and translot are by mutual compression fit.The purpose so arranged is the contact area increasing terminal board and patch panel further, reduces both contact resistances further, reduces heat generation rate, it is ensured that both are reliably connected.

In this patent, locking hole and terminal hole outer end are provided with counterbore, namely are provided with counterbore on the plate face that terminal board two is distant, are provided with counterbore on the two sides of patch panel.The Main Function arranging counterbore is the anchor portion and the nut that contain clamping screw, so when tightening clamping screw, the anchor portion of clamping screw and nut would not extrude translot and horizontal bar, also would not occur because of the problem that crimp causes translot and horizontal bar not to slide smoothly, it is ensured that the reliability of locking device work.

As improvement, terminal board end is installed with the narrow portion circular cone away from terminal board width portion Yu terminal board rounding off.

After the fixed circular cone in terminal board end, arrange with terminal board rounding off away from terminal board width portion because circular cone is narrow portion, therefore when terminal board inserts through slot, the narrow portion of circular cone can preferentially be inserted through slot and utilize the sidewall leading end daughter board of its inclination to slip into smoothly in through slot, has and slips into guiding and improve the effect of installation effectiveness.

As further improvement, patch panel one end is installed with the plugging block of closure through slot end.

Because being provided with in through slot cavity wall and the horizontal bar one to one of the translot on terminal board, and locking hole and terminal hole are also one to one, therefore when terminal board inserts through slot, only select right through slot to insert end, select the insertion anglec of rotation of right terminal board, terminal board just can be made to insert through slot smoothly, and make locking hole and terminal hole one_to_one corresponding arrange.After the fixed plugging block in patch panel one end, through slot has reformed into the cavity of only one of which oral area, so also just can only inserting terminal board from this unique oral area, fundamentally avoid and select mismatch portion to cause the problem that can not insert smoothly, this is one of effect arranging plugging block.Arrange plugging block effect two, it is simply that after arranging plugging block, introduced contaminants and dust cannot pass through this end and enter through slot, it is ensured that the spatter property of patch panel and terminal board connecting portion also reduces contact resistance.

In sum, adopt the transformator being adapted at the use of heavily contaminated area of this structure to connect hardware fitting structure reasonable, easy-to-connect is installed, contact area is big, contact resistance is little, being not susceptible to overheated and burnout failure, cleannes are good, not easily covered with dust, stable and reliable in work, will not causing heating burnout threaded post or open circuit lacuna accident because of vibration nut loosening after life-time service, the life-span is long, and maintenance period is long, operation cost is low, is adapted at air pollution seriously area and uses.

Accompanying drawing explanation

In conjunction with accompanying drawing, this utility model is described in further detail:

Fig. 1 is the structural representation of sleeve, patch panel, non-terminal plate fits；

Fig. 2 is the structural representation that low pressure kettle head, binding post and uith screw chamber coordinate；

Fig. 3 is binding post and the structural representation of uith screw chamber cooperation；

Fig. 4 is the fit structure schematic diagram of sleeve and interior pod；

Fig. 5 is the structural representation before sleeve and binding post assembling；

Fig. 6 is the fit structure schematic diagram that sleeve and binding post screw in state；

Fig. 7 is the fit structure schematic diagram of sleeve and binding post clamped condition；

Fig. 8 is fit structure schematic diagram when terminal board and patch panel assembling；

Fig. 9 is the fit structure schematic diagram after terminal board and patch panel assembling；

Figure 10 is the fit structure schematic diagram of silicone rubber cover and silica gel piece；

Figure 11 is the structural representation of low pressure kettle head, sleeve, patch panel and terminal board clamped condition；

Figure 12 is the integral outer structural representation of this patent.

Detailed description of the invention

As shown in the figure, this be adapted at heavily contaminated area use transformator connect gold utensil include with the binding post 2 of low pressure kettle head 1 suit coordinate there is plastic sleeve 3, sleeve side is provided with the fault trough 4 sleeve lateral wall cut off and forms two dilapidated walls 5 corresponding with fault trough, the sleeve outer wall corresponding with dilapidated walls is installed with along the outward extending jig arm 6 of dilapidated walls, two jig arm are provided with the folder hole 7 of correspondence, it is fitted with sleeve clamping fishbolt 8 on binding post in folder hole by jig arm, sleeve opposite side outer wall is installed with upwardly extending patch panel 9, patch panel is connected to cable 10 by locking device.Fault trough 4 is arranged to the wide wedge shape of the narrow lower port of upper port so that sleeve 3 forms the cone that thin lower end, upper end is thick, sleeve 3 inwall is evenly equipped with interior pod 51 extended up and down, the cross section of interior pod 51 is the isosceles triangle that wide portion is arranged towards sleeve 3 axial line, binding post 2 periphery is evenly equipped with extended up and down and vertical muscle 52 in arranging with interior pod 51 one_to_one corresponding, the cross section of interior vertical muscle 52 is the isosceles triangle that tip is arranged towards interior pod 51, binding post 2 axle center part is provided with the uith screw chamber 53 that oral area sets up, the cavity wall of uith screw chamber 53 is equipped with female thread 54, sleeve 3 inner top surface is coaxially installed with the interior stud 55 downwardly extending setting, interior stud 55 is equipped with the external screw thread 56 matched with female thread 54.

Originally the transformator being adapted at the use of heavily contaminated area connects the sleeve that gold utensil mainly includes coordinating with binding post suit, and the sidewall of sleeve side is provided with fault trough.Because the section of fault trough radially extends setting along sleeve, therefore arranged outside in the through sleeve lateral wall of fault trough.Because the section of fault trough also along sleeve axially under extended, therefore the upper and lower two ends of fault trough also through sleeve lateral wall are arranged.So, sleeve lateral wall is just cut off and is come by fault trough, makes whole sleeve sidepiece form the slot-shaped side port of a complete open type.Because sleeve is round tube shape structure, after arranging fault trough, the cross section of whole sleeve is just in " C " shape.For convenient narration, the section of the sleeve lateral wall formed after cutting fault trough being called dilapidated walls, so, sleeve just has two dilapidated walls close to each other, and fault trough is between two dilapidated walls.

In this patent, sleeve outer wall being fixedly provided with two jig arm, jig arm is arranged near dilapidated walls, and a sidewall of jig arm is corresponding with dilapidated walls to be connected and be positioned in a plane.So, two jig arm are equivalent to the extension that dilapidated walls are outside, and two jig arm also intervals are arranged.Because sleeve is made up of metal material, it is generally alloy, therefore both there is good plasticity.As it was previously stated, sleeve cut off by fault trough after in " C " shape, and two jig arm are placed exactly in two ends of " C " shape sleeve, therefore drive the sleeve plastic deformation of " C " shape will be more laborsaving by jig arm.When two jig arm are subject to chucking power and move towards, two jig arm will drive the deformation of " C " shape sleeve synchronizing moving namely two jig arm line swinging deformation in opposite directions centered by sleeve axial line.In this patent, two jig arm are provided with the folder hole of correspondence, are fitted with fishbolt in folder hole, and what provide chucking power to two jig arm is exactly this fishbolt.When tightening fishbolt, two jig arm will be extruded by fishbolt, and now two jig arm move towards, and " C " shape sleeve is also drive by jig arm and shrinks to axial line, for convenience of narration, this state be called clamped condition or contraction state.When contraction state, barrel bore diameter diminishes, and therefore sleeve lining will tightly be wrapped on binding post outer wall, it is ensured that the reliability of sleeve and binding post electrical connection.Due to all screw threads all clamping engagement of sleeve lining Yu whole binding post, therefore both contacts area are big with the contact area of binding post more than single nut, thus substantially reduce both contact resistances, greatly reduce the probability of binding post heating.Obviously, the contact area of the degree of tightening of fishbolt, sleeve and the clamping degree of binding post, sleeve and binding post, this three is proportional relation.That is, fishbolt is twisted more tight, sleeve plastic deformation is more thorough, sleeve and binding post just clamp more tight, and it is more deep that the screw of binding post embeds sleeve lining, and the contact area of sleeve and binding post is more big, the contact resistance of sleeve and binding post is more little, and binding post heating probability is more low.Therefore, when using this patent, only need to tighten fishbolt to attach the casing on binding post, operate very simple.And when needing to dismantle, only need to unclamp fishbolt, and the screwdriver carried with electrician inserts fault trough and pries open or strut two jig arm, " C " shape sleeve can be strutted into the tubular structure of larger interior diameter, complete the plastic deformation extended out, thus easily sleeve can be taken off from binding post, operate very simple.For convenience of narration, " C " shape sleeve can be called softened state or extended configuration from the state that binding post departs from.Obviously, only need to control the contraction state of " C " shape sleeve or extended configuration, being reliably connected and easily separating of sleeve and binding post can be realized, simple to operate, safeguard or replacing being convenient to.

Being fixedly provided with patch panel on sleeve, patch panel is positioned at the opposite side of sleeve, is oppositely arranged with jig arm.Patch panel is slab construction, extended straight up, so not only facilitates wiring, and without influence on the safe distance of adjacent thread post.Patch panel is provided with locking device, it is operated by locking device and can make that patch panel and cable are fixing to be electrically connected, thus achieved the reliable output of electric energy by the reliable electrical connection of threaded post, sleeve, patch panel and locking device, it is ensured that in service life, reduce maintenance cost.

In this patent, sleeve lining being evenly equipped with interior pod, interior pod is extended up and down.The cross section of interior pod is isosceles triangular structure, and the bottom of the wide portion of interior pod namely isosceles triangle is arranged towards sleeve axial line.So, in adjacent two, the cell wall of pod also can constitute a dentalation, and the cross section of this dentalation is also in isosceles triangle, for convenience of narration, this dentalation is called " rake tooth ".In this patent, binding post periphery being evenly equipped with interior vertical muscle, interior vertical muscle is extended up and down.The interior vertical quantity of muscle is identical with the quantity of interior pod, and in therefore, vertical muscle and interior pod one_to_one corresponding are arranged.In this patent, the cross section of interior vertical muscle is also in isosceles triangle, and interior vertical muscle is arranged towards the direction of interior pod according to tip.The purpose so arranged, is make sleeve when being set with binding post, as long as making in one pod in vertical muscle alignment, then ensure that all interior vertical muscle all align interior pod, it is ensured that the accuracy of cooperation.In this patent, being provided with a uith screw chamber in binding post, uith screw chamber is positioned at the axle center part of binding post.Uith screw chamber is cylindrical structural, and uith screw chamber and binding post are coaxially disposed.In this patent, uith screw chamber oral area sets up, and such uith screw chamber is exactly a cylinder-like structure with upward opening.Being equipped with female thread in the cavity wall of uith screw chamber, female thread extends to bottom uith screw chamber from uith screw chamber upper end.

In this patent, sleeve is that oral area is arranged downwards, and sleeve so can be facilitated to be set with binding post extended upward from the top down, one of this advantageous effect being set as.The two of the advantageous effect that sleeve oral area is arranged downwards, it is exactly after sleeve set binding post, because sleeve top blocks, therefore sleeve serves the effect blocking dust and other impurities, ensure that sleeve lining and the spatter property of binding post sidewall, namely after can guarantee that locking device life-time service, still can keep the ability of less contact resistance, it is particularly suitable in the heavier area use of air pollution.Being installed with the interior stud downwardly extending setting on sleeve inner top surface, interior stud and sleeve are coaxially disposed.Interior stud is equipped with external screw thread, external screw thread and the female thread threaded in uith screw chamber.As previously mentioned, when extended configuration, sleeve phase pairs of posts can freely move axially or freely circumferentially rotate, it is therefore desirable to when attaching the casing on binding post, only by the uith screw chamber oral area of interior stud lower end aligned binding post, then interior stud need to be screwed in uith screw chamber.When interior stud is completely screwed into uith screw chamber, sleeve also just overlaps completely and has installed on binding post, for convenience of narration, this state is called screw-in state.When the state of screw-in, the external screw thread of interior stud periphery and the female thread snug fit of uith screw chamber, therefore its contact area rate is common optical axis and the assembling conjunction of light inserting are much bigger, greatly reduce the contact resistance of interior stud and binding post, effectively prevent heating burnout accident.In order to sleeve is locked on binding post, it is necessary to fishbolt inserted in the folder hole of jig arm and tighten gradually.Arranging as it was previously stated, the interior pod on sleeve lining and the interior vertical muscle on binding post periphery are one_to_one corresponding, therefore in the process tightening fishbolt gradually, Nei Zong influential point of tendons slowly shifts to interior pod.When fishbolt is tightened completely, interior vertical muscle and interior pod snug fit one by one, now sleeve completes plastic shrinkage, and tightly ladle cover is on binding post, namely sleeve reaches clamped condition.When clamped condition, because the interior vertical muscle of the interior pod of sleeve lining and binding post periphery is tightly to fit together, and the cross section of interior pod and interior vertical muscle is all isosceles triangle, therefore the contact area of both contact area rate tradition optical axis and light set connected mode is much bigger.So, the contact area of sleeve and binding post not only includes uith screw chamber and the contact area of interior stud, also includes interior pod and the contact area of interior vertical muscle, and all coordinates very tight, greatly reduce the contact resistance of sleeve and binding post, effectively prevent heating burnout accident.In this patent, sleeve is when extended configuration, and fault trough is the wedge shape that the narrow lower port of upper port is wide, and now, whole sleeve is the cone that thin lower end, upper end is thick, the barrel bore cone that also thick lower port is thicker than binding post in upper port and binding post etc..The purpose so arranged, one be in order to binding post set sleeved time, it is possible to sleeve need not be accurately aimed at binding post and just quickly sleeve oral area can be buckled and cover on binding post；Two is that sleeve oral area after expanding can facilitate installation personnel to see the interior stud of sleeve inner, interior stud end so only need to be directed at uith screw chamber and can complete accurately docking of sleeve and binding post, greatly reduce installation difficulty, be favorably improved work efficiency.

In this patent, because interior pod and female thread are both along the axially extending setting of binding post, therefore, when clamped condition, if not adopting violence to be separated with binding post by sleeve by force by unclamping fishbolt mode, sleeve and binding post can only be applied axial tension in opposite direction.Similar, because the screw thread on interior stud and uith screw chamber is all substantial transverse setting, namely it is approximately axially vertically disposed with binding post, therefore, when clamped condition, if not adopting violence to be separated with binding post by interior stud by force by unclamping fishbolt mode, internal stud and binding post can only be adopted to apply horizontal torsion in opposite direction or revolving force, namely sleeve and binding post be applied horizontal torsion in opposite direction or revolving force.In sum, in the clamp state, if not adopting the mode unclamping fishbolt, and when adopting pairs of posts and sleeve applying axial tension violence in opposite direction to pull, although the resistance that the interior pod of clamped condition and interior vertical muscle now produce is little, but the horizontal thread of the interior stud of threaded and uith screw chamber will produce great resistance, therefore cannot realize separating；If adopt pairs of posts and sleeve to apply circumferential torsion in opposite direction or revolving force violence rotation, although the interior stud of clamped condition and uith screw chamber will not produce excessive resistance, but the interior pod of axially extending setting and interior vertical muscle will produce great resistance under clamped condition, therefore also cannot realize separating.In brief, when clamped condition, only by unclamping fishbolt mode, sleeve is separated from binding post, otherwise adopt violence mode also not all right, fundamentally ensure that the reliability of the affixed reliability of this patent, electrical connection, this is also one of the innovative point of this patent.

In the present embodiment, described interior stud lower end is coaxially installed with tip conical blocks 17 down, being equipped with the helical tooth 18 arranged from the external screw thread spiral extension of the inside stud in conical blocks tip on the conical surface of conical blocks, helical tooth lower end is round and smooth with the external screw thread upper end one_to_one corresponding of interior stud to be connected.After the fixed conical blocks in interior stud lower end, down and it is coaxially disposed with interior stud because conical blocks is tip, therefore before interior stud inserts uith screw chamber, the tip of conical blocks can first be inserted in uith screw chamber, and stud inserts in uith screw chamber smoothly in being guided by its conical outside face, therefore conical blocks have stud in auxiliary quickly, the guide effect that is properly inserted in uith screw chamber.In this patent, the conical surface of conical blocks being equipped with some helical tooths, along taper seat from conical blocks tip to conical blocks, periphery spiral extension is arranged helical tooth.On helical tooth and interior stud, external screw thread one_to_one corresponding is arranged, and the lower end of all helical tooths is connected with each self-corresponding external screw thread upper end rounding off.The benefit so arranged is, when conical blocks inserts uith screw chamber inner chamber, no matter whether conical blocks is co-axially inserted uith screw chamber, owing to protruding from the existence of the helical tooth of the conical blocks conical surface, in helical tooth can touch uith screw chamber inwall prior to the conical blocks conical surface and slip into the female thread of uith screw chamber inwall.Along with conical blocks is gradually inserted uith screw chamber, the helical tooth snapping in female thread can progressively go deep in female thread.When stud in being rotated by sleeve, helical tooth can guide in the female thread screwing into uith screw chamber upper end of interior stud lower end, and such helical tooth just serves and guides the guiding that external screw thread slips into female thread to slip into effect.When continuing turnbarrel, the external screw thread of interior stud just screws in the female thread of uith screw chamber smoothly, namely interior stud screws in uith screw chamber smoothly, it is ensured that the success rate of sleeve and the cooperation of binding post plug-in mounting and smoothness, also improves installment work efficiency.

As a kind of implementation, the through slot 33 that the cross section that described locking device includes being arranged in patch panel 9 is rectangle and oral area sets up, through slot is arranged along the through patch panel of patch panel length direction, two double walls 34 are formed between cavity wall and the wooden partition of patch panel of through slot, double wall is provided with the locking hole 19 of correspondence, clamping screw 20 it is fitted with in locking hole, also include the cable core suit with cable and lock friction tight sleeve pipe 21, cannula end is installed with two terminal boards be arrangeding in parallel 22, two ends are fixedly connected with location-plate 39 between daughter board upper surface, location-plate end face is the arc that the high edge in middle part is low, location-plate edge is installed with outward extending extension 40, terminal board cross section is identical with through slot cross section, a clip slot 35 is formed between the daughter board of two ends, clip slot, terminal board, through slot is identical with double wall thickness, terminal board is provided with terminal hole 23, during terminal board fully-inserted through slot, the connecting portion snug fit of double wall end and two ends daughter board and the terminal hole extension simultaneously that aligns with locking hole is adjacent to block with double wall end face and coordinates.

In this patent, being compressed by hydraulic way after sleeve pipe suit cable inner core, such sleeve pipe just can crimp into a single integrated structure with cable inner core, thus realizing electrically connecting with the reliable of cable with sleeve pipe.Sleeve pipe latter end is fixedly connected with terminal board, and terminal board is slab construction, and terminal board is provided with through the terminal hole of terminal board thickness.In this patent, the quantity of terminal board is two, be arranged in parallel, forms a clip slot between the daughter board of two ends.Sleeve epimere is installed with a patch panel, and patch panel is also slab construction.The plate face of patch panel is vertically arranged, and so can reduce the transverse width of this patent, fundamentally improves the safe distance between phase line.For convenience of narration, the distance between patch panel two plate face is called thickness, upper and lower for patch panel distance is called height, patch panel plate face lateral separation is called length.Being provided with the through slot that an oral area sets up in connecting plate, and through slot is along the through setting of patch panel length direction, the vertical section of such patch panel is exactly a "U" shaped structure.In this patent, through slot is identical with the cross section of terminal board, be all height more than the rectangle of width and equivalently-sized, therefore terminal board can insert in through slot smoothly, and both are snuggly mated to together.After through slot is set, it is the formation of two support arms in through slot both sides.For convenience of narration, by the support arm of through slot both sides, namely the patch panel entity part between through slot side chamber wall and patch panel sidewall is called double wall.In this patent, double wall being provided with locking hole, the locking hole on two double walls is correspondingly arranged, and is fitted with clamping screw in locking hole.In this patent, through slot, double wall, clip slot, terminal board thickness are identical, and therefore, when a terminal board is inserted in through slot, a double wall also corresponding plug-in mounting enters in clip slot, and the adjacent surface of double wall and terminal board is snug fit.For convenience of narration, this state is called the state of being seated.Under being seated state, bottom double wall end and clip slot namely the convergence part also compression fit of two ends daughter board, and locking hole and the alignment of terminal hole one_to_one corresponding are arranged.Accordingly, it would be desirable to when connecting plate is connected cable, only a terminal board need to be inserted through slot, make up to the state of being seated, it is inserted into clamping screw and tightens, patch panel and terminal board locking can be made into a single integrated structure, namely achieving the reliable electrical connection of patch panel and cable.For convenience of narration, the state being seated under state clamping screw and tightening is called locking state.In this patent, being fixedly connected with a location-plate between daughter board upper surface, two ends, location-plate serves the fixing effect supporting two ends daughter board, improves both structural stabilities.In this location-plate, the end face of location-plate is the arc that the high edge in middle part is low, so can avoid piling up dust or rainwater, it is ensured that the overall spatter property of locking device, help avoid heating accident.Location-plate edge is installed with outward extending extension, extension and two double wall end faces are correspondingly arranged, the dust from location-plate arc top surface landing or rainwater so can be avoided to enter through slot, ensure that the spatter property of through slot, fundamentally avoid and cause that because the impurity such as dust enter contact resistance increases the heating accident caused.No matter under being seated state or in the locked condition, three plate faces of one terminal board and the three of through slot corresponding compression fit in face, chamber, the interior plate face of a terminal board and adjacent double wall lateral surface compression fit, clip slot bottom surface and adjacent double wall end face compression fit, location-plate inwall and corresponding double wall end face compression fit, one has 6 plate face compression fit, contact area is greatly increased relative to conventional coupling arrangement, contact resistance is substantially reduced, fundamentally ensure that the reliability that both electrically connect, effectively prevent connection heating and burnout failure.When needing demolition and maintenance, only need to unclamp clamping screw, then terminal board be extracted out through slot, operates very simple.After long-term use, running into and cause when clamping screw loosens because of vibration, still can not come off from locking hole due to clamping screw, therefore terminal board and patch panel are still had positioning action by clamping screw, make both still tightly plug-in, namely be changed into, by locking state, the state of being seated.As previously mentioned, under being seated state, this locking device still has the snug fit relation in 6 plate faces, contact area is unchanged, simply contact pressure is more slightly smaller, therefore on the impact of contact resistance little, namely under the premise that clamping screw loosens, this locking device still can guarantee that reliable electrical connection, fundamentally avoids heating and burnout failure.

Described terminal board wooden partition is evenly equipped with along the extended translot that cross section is V-arrangement 24 of terminal board length direction, through slot cavity wall with the sidewall of patch panel is evenly equipped with the horizontal bar 25 that the cross section corresponding with translot is △ shape, locking hole and terminal hole outer end are provided with and contain, with clamping screw end, the counterbore 38 that coordinates.For convenience of narration, plate face patch panel and terminal board being mutually adjacent to is called the face of being adjacent to.In this patent, being adjacent on face and be evenly equipped with some translots of terminal board, translot is extended along terminal board length direction.Being adjacent on face and be evenly equipped with some horizontal bars of patch panel, horizontal bar is horizontally extending setting also.Because the cross section of translot and horizontal bar is V-arrangement and the △ shape of corresponding matching, therefore terminal board is when inserting through slot, and translot and horizontal bar can play promotes the guide effect slided, and this is one of its effect.When being seated state, not only horizontal bar is correspondingly embedded in translot, the setting and terminal hole and locking hole also align one by one.After tightening clamping screw, horizontal bar and translot are by mutual compression fit.The purpose so arranged is the contact area increasing terminal board and patch panel further, reduces both contact resistances further, reduces heat generation rate, it is ensured that both are reliably connected.

In this patent, locking hole and terminal hole outer end are provided with counterbore, namely are provided with counterbore on the plate face that terminal board two is distant, are provided with counterbore on the two sides of patch panel.The Main Function arranging counterbore is the anchor portion and the nut that contain clamping screw, so when tightening clamping screw, the anchor portion of clamping screw and nut would not extrude translot and horizontal bar, also would not occur because of the problem that crimp causes translot and horizontal bar not to slide smoothly, it is ensured that the reliability of locking device work.

In this patent, terminal board end is installed with the narrow portion circular cone 36 away from the wide portion of terminal board Yu terminal board rounding off.After the fixed circular cone in terminal board end, arrange with terminal board rounding off away from terminal board width portion because circular cone is narrow portion, therefore when terminal board inserts through slot, the narrow portion of circular cone can preferentially be inserted through slot and utilize the sidewall leading end daughter board of its inclination to slip into smoothly in through slot, has and slips into guiding and improve the effect of installation effectiveness.

In the present embodiment, patch panel 9 one end is installed with the plugging block 37 of closure through slot end.Because being provided with in through slot cavity wall and the horizontal bar one to one of the translot on terminal board, and locking hole and terminal hole are also one to one, therefore when terminal board inserts through slot, only select right through slot to insert end, select the insertion anglec of rotation of right terminal board, terminal board just can be made to insert through slot smoothly, and make locking hole and terminal hole one_to_one corresponding arrange.After the fixed plugging block in patch panel one end, through slot has reformed into the cavity of only one of which oral area, so also just can only inserting terminal board from this unique oral area, fundamentally avoid and select mismatch portion to cause the problem that can not insert smoothly, this is one of effect arranging plugging block.Arrange plugging block effect two, it is simply that after arranging plugging block, introduced contaminants and dust cannot pass through this end and enter through slot, it is ensured that the spatter property of patch panel and terminal board connecting portion also reduces contact resistance.

In the present embodiment, this patent also includes all covering jig arm, upper cartridge, patch panel and terminal board being buckled in the silicone rubber cover 28 that interior oral area is arranged downwards, silicone rubber cover is installed with the silica gel piece 26 coordinated with fault trough plug-in mounting on the inwall of jig arm, and silica gel piece is provided with and is correspondingly arranged with folder hole and much larger than the silica gel hole 27 of folder hole.After silicone rubber cover is set, silicone rubber cover can be detained and cover on above jig arm, upper cartridge, patch panel and terminal board, and by jig arm, upper cartridge, patch panel and terminal board completely ladle cover in silicone rubber cover inner chamber, so can play the effect of weather proof, dust protection, ensure that the cleaning of connecting portion between connecting portion between sleeve and binding post, patch panel and terminal board, also ensure that the reliability of electrical connection between above-mentioned connecting portion.In this patent, silicone rubber cover inwall being installed with a silica gel piece, silica gel piece is vertically arranged.Being provided with a silica gel hole in the middle part of silica gel piece, the size in silica gel hole is much larger than folder hole size.The purpose so arranged, is facilitate silica gel piece to insert smoothly in the space between two jig arm, and can pass through silica gel hole when fishbolt inserts folder hole.When clamped condition, silica gel piece is subject to jig arm crimp, and utilizes natural resiliency to increase frictional force and the bed knife of silica gel piece and jig arm, makes silica gel piece be fixed between two jig arm.The benefit so arranged is, during normal use, if run into maintenance, it is possible to directly start thus exposing jig arm, upper cartridge, patch panel and terminal board by silicone rubber cover, in order to maintenance.Owing to silica gel piece and jig arm are fixing annexations, therefore when silicone rubber cover is started, silica gel piece can't move relative to jig arm, but elastic deformation occurs in the junction of silica gel piece and silicone rubber cover.When overhauling complete, then silicone rubber cover former state being put down, now the elastic deformation of silica gel piece and silicone rubber cover junction disappears and restores to the original state.So arrange it is also an advantage that, it is simply that when being subject to less External Force Acting, when blowing such as wind, silicone rubber cover still can keep under the resiliency supported effect of silica gel piece button hood-like state, it is ensured that the reliability of silicone rubber cover protective effect and persistency.

In this patent, described silicone rubber cover sidewall is provided with the n shape opening 29 that the oral area corresponding with terminal board is arranged downwards, and opening is equipped with silica gel thin slice 30, is provided with the thin seam 31 of a up/down perforation in the middle part of thin slice, and described silicone rubber cover top is tip hemisphere 32 upward.In this patent, silicone rubber cover top is set to tip hemisphere upward, it is possible to play and avoid dust accretions at silicone rubber cover end face, keep the effect of silicone rubber cover cleaning, provide conveniently for electric power overhaul.The opening of n shape is set at silicone rubber cover avris, aperture position and terminal board are correspondingly arranged, so when the hood-like state of silicone rubber cover button, the connecting portion of terminal board and sleeve pipe can just embed in the opening of n shape, both ensure that all parts was completely detained cover by silicone rubber cover, also silicone rubber cover is made will not to deform because of the extruding of terminal board, more attractive in appearance in appearance.In this patent, n shape opening is laid with one layer of silica gel thin slice, in the middle part of silica gel thin slice, is provided with a thin seam extended from the top down.When silicone rubber cover button cover jig arm, upper cartridge, patch panel and terminal board, terminal board can enter thin seam.Because the thickness of silica gel thin slice is than the thickness much thinner of silicone rubber cover, therefore elastic better, extensibility is also better, the so thin silica gel thin slice stitching both sides will tightly wrap terminal board, serve sealing function, effectively prevent from dust from passing through opening to enter inside silicone rubber cover, further ensure the spatter property of jig arm, upper cartridge, patch panel and terminal board.

Claims (5)

1. one kind is adapted at the transformator connection gold utensil that heavily contaminated area uses, it is characterized in that: include with low pressure kettle head (1) binding post (2) suit coordinate there is plastic sleeve (3), sleeve (3) side is provided with the fault trough (4) sleeve lateral wall cut off and forms two dilapidated walls (5) corresponding with fault trough (4), sleeve (3) outer wall corresponding with dilapidated walls (5) is installed with along dilapidated walls (5) outward extending jig arm (6), two jig arm (6) are provided with the folder hole (7) of correspondence, the fishbolt (8) being clamped on binding post (2) by sleeve (3) by jig arm (6) it is fitted with in folder hole (7), sleeve (3) opposite side outer wall is installed with upwardly extending patch panel (9), patch panel (9) is connected to cable (10) by locking device, fault trough (4) is arranged to the wide wedge shape of the narrow lower port of upper port so that sleeve (3) forms the cone that thin lower end, upper end is thick, sleeve (3) inwall is evenly equipped with interior pod (51) extended up and down, the cross section of interior pod (51) is the isosceles triangle that width portion is arranged towards sleeve (3) axial line, binding post (2) periphery is evenly equipped with extended up and down and with the setting of interior pod (51) one_to_one corresponding interior vertical muscle (52), the cross section of interior vertical muscle (52) is the isosceles triangle that tip is arranged towards interior pod (51), binding post (2) axle center part is provided with the uith screw chamber (53) that oral area sets up, the cavity wall of uith screw chamber (53) is equipped with female thread (54), sleeve (3) inner top surface is coaxially installed with the interior stud (55) downwardly extending setting, interior stud (55) is equipped with the external screw thread (56) matched with female thread (54), the through slot (33) that the cross section that described locking device includes being arranged in patch panel (9) is rectangle and oral area sets up, through slot (33) is arranged along the through patch panel of patch panel (9) length direction (9), two double walls (34) are formed between cavity wall and the wooden partition of patch panel (9) of through slot (33), double wall (34) is provided with the locking hole (19) of correspondence, clamping screw (20) it is fitted with in locking hole (19), also include the cable core suit with cable (10) and lock friction tight sleeve pipe (21), sleeve pipe (21) end is installed with two terminal boards be arrangeding in parallel (22), location-plate (39) it is fixedly connected with between two ends daughter board (22) upper surface, location-plate (39) end face is the arc that the high edge in middle part is low, location-plate (39) edge is installed with outward extending extension (40), terminal board (22) cross section is identical with through slot (33) cross section, a clip slot (35) is formed between two ends daughter board (22), clip slot (35), terminal board (22), through slot (33) is identical with double wall (34) thickness, terminal board (22) is provided with terminal hole (23), during terminal board (22) fully-inserted through slot (33), the connecting portion snug fit of double wall (34) end and two ends daughter board (22) and terminal hole (23) extension (40) simultaneously that aligns with locking hole (19) is adjacent to block with double wall (34) end face and coordinates.

2. it is adapted at the transformator connection gold utensil that heavily contaminated area uses as claimed in claim 1, it is characterized in that: described interior stud (55) lower end is coaxially installed with tip conical blocks (17) down, being equipped with the helical tooth (18) arranged from external screw thread (56) spiral extension of the inside stud in conical blocks (17) tip (55) on the conical surface of conical blocks (17), helical tooth (18) lower end is round and smooth with the external screw thread of interior stud (55) (56) upper end one_to_one corresponding to be connected.

3. it is adapted at the transformator connection gold utensil that heavily contaminated area uses as claimed in claim 1 or 2, it is characterized in that: described terminal board (22) wooden partition is evenly equipped with along the extended translot that cross section is V-arrangement (24) of terminal board (22) length direction, being evenly equipped with the horizontal bar that cross section be △ shape (25) corresponding with translot (24) on the sidewall of through slot cavity wall and patch panel (9), locking hole (19) and terminal hole (23) outer end are provided with and contain, with clamping screw (20) end, the counterbore (38) coordinated.

4. it is adapted at the transformator connection gold utensil that heavily contaminated area uses as claimed in claim 3, it is characterized in that: terminal board (22) end is installed with the narrow portion circular cone (36) away from terminal board (22) width portion Yu terminal board (22) rounding off.

5. it is adapted at the transformator connection gold utensil that heavily contaminated area uses as claimed in claim 4, it is characterized in that: patch panel (9) one end is installed with the plugging block (37) of closure through slot (33) end.