Summary of the invention
For overcoming the deficiency that existing processing form exists, the invention provides a kind of guide clamp to the shunting of wire clamp pressing plate.
The present invention solves the technical scheme that its technical problem takes:
To a guide clamp for wire clamp pressing plate shunting, comprise the baffle of U-type groove structure, pressed slider, diversion rod, holddown spring, insulating sleeve and branch sleeve; Described baffle comprises frid, lower frid and two side plates.
Described upper frid and described lower frid be arranged in parallel up and down and are placed between biside plate, make the left end of described upper and lower frid be connected to the upper and lower end of described side plate by bolt correspondence.On two described side plates, correspondence arranges vertically extending guide groove.
On the forward and backward side of described pressed slider left end, correspondence arranges column type slide rail, makes described column type slide rail and described side plate upper rail corresponding matching.
The upper end of described diversion rod is connected to the lower surface of described pressed slider.
Described lower frid arranges axially vertical tapped through hole, described branch sleeve is assemblied in the tapped through hole of described lower frid.The axial length of described branch sleeve is greater than the vertical thickness of described lower frid.
Counterbore is set in the lower end of described lower frid tapped through hole and internal thread is set on the hole wall of this counterbore.The threaded upper ends of described insulating sleeve is connected to the counterbore of described lower frid.
Heavy chamber is set in the upper end, cylinder chamber of described insulating sleeve and makes the footpath, chamber in described heavy chamber be not less than the external diameter of described branch sleeve lower end.It is coaxial after described insulating sleeve and described branch sleeve assemble.
The lower end of described diversion rod, from up to down through after described branch sleeve, extends to the lower end in described insulating sleeve cylinder chamber and is connected with the handle of isolation material.Be between described pressed slider and branch sleeve on one section at described diversion rod and be nested with described holddown spring.
When applying, clamping jaw is the notch formed between described upper frid lower surface and described pressed slider upper surface, so when moving to top on initial position and described diversion rod, need guarantee that the vertical interval between upper frid lower surface and pressed slider upper surface is less than the vertical thickness of wire clamp pressing plate, and now described holddown spring must be in compressive state.It, by the upright position of the relatively described lower frid of described branch sleeve, can set the thrust of described holddown spring, ensure clamping effect of the present invention.
Because in the gripper clamp notch portion that upper frid and pressed slider are formed, the real position contacted with wire clamp pressing plate is right side slot-open-section, so the maximization in order to ensure clamping force vertical stress component, further, the upper end of described diversion rod is made to be connected to the right-hand part center of the lower surface of described pressed slider.
Because upper frid and the contact-making surface between pressed slider and wire clamp pressing plate are plane, so need ensure that the levelness between frid lower surface with pressed slider upper surface is consistent.Be fixed part after upper frid assembling, its levelness is by guaranteeing that the assembling of itself and side plate completes, and be movable part after described pressed slider assembling, so need further: make the number each described side plate being arranged described guide groove be two or three, and each guide groove is parallel to each other; On described pressed slider, the number of column type slide rail is consistent with the number of described guide groove, and makes described column type slide rail and the cooperation between described guide groove be that face contacts and coordinates.The assembling form of two guide grooves or three guide grooves, can ensure that pressed slider not easily offsets when moving up and down, after particularly combining face contact assembly features, there is skew when pressed slider is moved up and down may side-play amount reduce further in other words, promote clamping effect and effect of leading further.
Further, uniform on frid on described multiple vertically extending tapped through hole is set, the post that leads is equipped with in each tapped through hole, the upper end assembling insulation handwheel of the described post that leads, the lower surface of the described post that leads arranges file sword, the indicator light with shown post conducting of leading is set in the center of described insulation handwheel.
Further, heavy chamber is also set in the lower end, cylinder chamber of described insulating sleeve; When described pressed slider compresses wire clamp pressing plate, the lower end of described diversion rod extends to described insulating sleeve cylinder chamber lower end and sinks in chamber; Described handle upper end arranges column-shaped boss and is connected with described diversion rod lower end, and the external diameter of described handle column-shaped boss is less than described insulating sleeve cylinder chamber lower end and sinks the internal diameter in chamber.Like this, diversion rod is all in insulating sleeve in the clamp state, ensure that safety in utilization.
Further, shown upper frid comprises contact pressing plate and lead; Frid is laid with vertically extending through hole on described, the lower port of described through hole arranges counterbore; Described lead one_to_one corresponding is assemblied in each through hole of frid, and the external diameter of lead is consistent with the aperture being mated through hole; The upper end of described lead passes through hole on described upper frid, and is supported on upper frid by the pin that is arranged on lead upper end or the radial flange extended by lead; Described lead is nested with spring respectively, on the upper frid making the upper end of spring be embedded in corresponding thereto through hole lower end counterbore in, make the lower end of lead be threadedly connected to the upper surface of described contact pressing plate, also make the lower end of spring be connected to the upper end of contact pressing plate simultaneously; Lower surface and the wire clamp pressing plate phase Contact of described contact pressing plate.
Further, described contact pressing plate is an integral slab, and its lower surface is concavo-convex alternate wavy, and to form wavy raised line and groove bearing of trend be front and back to, the lower surface of raised line is plane; On the corresponding described upper frid in described contact pressing plate upper surface, through hole arranges vertically extending projection, and projection is arranged the lower end threaded engagement of tapped blind hole and described lead, the lower end of described spring is placed on the outer wall of corresponding projection respectively.
Beneficial effect:
The present invention, not by unloaded restriction, when adopting earth potential working mode, overcomes the narrow and small problem that cannot realize on-line treatment heating of equipment clearance, expands the scope of live line working;
Need not the turnover such as installing insulating platform electric field instrument when operating, easy to use;
No longer need transfer load simultaneously, avoid repeatedly grid switching operation, fitting operation is simple, does not require to have too strong operative skill;
Under earth potential condition, operation avoids operating personnel and directly contacts with electrified body, improves the fail safe of personnel and equipment;
Adopt guide groove guiding pressed slider to move, moving up and down of pressed slider is not easily offset;
Insulating sleeve lower end is used for gripping, and coordinates handle to use simultaneously, makes swift to operate, safety;
Branch sleeve sets the adjustment of the elastic module of holddown spring, can ensure that the wire clamp pressing plate for different-thickness realizes reliable retention.
Embodiment
For ease of understanding technology contents of the present invention, just by reference to the accompanying drawings its technical scheme is described further below.It should be noted that, every involved " counterbore ", " heavy chamber ", be all defaulted as its interior diameter and be greater than corresponding through hole or the interior diameter in cylinder chamber.
A kind of guide clamp to the shunting of wire clamp pressing plate as shown in Figure 1 to Figure 3:
It comprises the baffle of U-type groove structure, pressed slider 4, diversion rod 5, holddown spring 6, insulating sleeve 7 and branch sleeve 9.Described baffle comprises frid 1, lower frid 2 and two side plates 3.Described upper frid 1 and described lower frid about 2 be arranged in parallel and are placed between biside plate 3, make the left end of described upper and lower frid 1,2 be connected to the upper and lower end of described side plate 3 by bolt correspondence.
On two described side plates 3, correspondence arranges vertically extending guide groove 31.On the forward and backward side of described pressed slider 4 left end, correspondence arranges column type slide rail, makes described column type slide rail and described side plate 3 upper rail 31 corresponding matching.
During use, because upper frid 1 and the contact-making surface between pressed slider 4 and wire clamp pressing plate are plane, so need ensure that the levelness between frid 1 lower surface with pressed slider 4 upper surface is consistent.It is fixed part after described upper frid 1 assembles, its levelness (coordinates relative to the left side of side plate 3 with upper and lower frid 1,2 by guaranteeing that it completes with the assembling of side plate 3, make it coordinate with front and back sides can to weaken cantilever beam structure to affect, be beneficial to and ensure the constant of rear upper frid 1 levelness of assembling), and described pressed slider 4 is movable part after assembling, so need further: make the number described side plate 3 being arranged guide groove 31 be two (or three), and each guide groove is parallel to each other.
On described pressed slider 4, the number of column type slide rail is inevitable consistent with the number of described guide groove 31, makes the cooperation between described column type slide rail with described guide groove 31 be that face contacts and coordinates in addition.The assembling form of two guide grooves 31, can ensure that pressed slider 4 not easily offsets when moving up and down, after particularly combining face contact assembly features, skew occurs when pressed slider 4 is moved up and down may side-play amount be reduced in other words further, promotes clamping effect and effect of leading further.
The upper end of described diversion rod 5 is connected to the lower surface of described pressed slider 4.Described lower frid 2 arranges axially vertical tapped through hole, described branch sleeve 9 is assemblied in the tapped through hole of described lower frid 2.The axial length of described branch sleeve 9 is made to be greater than the vertical thickness of described lower frid 2.Counterbore be set in the lower end of described lower frid 2 tapped through hole and internal thread is set on the hole wall of this counterbore, the threaded upper ends of described insulating sleeve 7 being connected to the counterbore of described lower frid 2.
Heavy chamber be set in the upper end, cylinder chamber of described insulating sleeve 7 and make the footpath, chamber in described heavy chamber be not less than the external diameter of described branch sleeve 9 lower end, ensureing that branch sleeve 9 relatively plays frid 2 lower surface to extend part and can be contained in this heavy chamber.Make after assembling described insulating sleeve 7 and described branch sleeve 9 coaxial.
The lower end of described diversion rod 5, from up to down through after described branch sleeve 9, extends to the lower end in described insulating sleeve 7 chambeies and is connected with the handle 8 of isolation material.Be between described pressed slider 4 and branch sleeve 9 on one section at described diversion rod 5 and be nested with described holddown spring 6.
The external diameter of the cylinder chamber internal diameter of described insulating sleeve 7, the cylinder chamber internal diameter of described branch sleeve 9 and described diversion rod 5 is all consistent, or at least ensures to make the external diameter of described diversion rod 5 be less than the cylinder chamber internal diameter of less in described insulating sleeve 7 chamber internal diameters, branch sleeve 9 chamber internal diameters.
Heavy chamber can be also set in the lower end, cylinder chamber of described insulating sleeve 7.When described pressed slider 4 compresses wire clamp pressing plate, the lower end of described diversion rod 5 extends to described insulating sleeve 7 chamber lower ends and sinks in chamber.Described handle 8 upper end arranges column-shaped boss and is connected with described diversion rod 5 lower end.The external diameter of described handle 8 column-shaped boss is less than described insulating sleeve 7 chamber lower ends and sinks the internal diameter in chamber.Like this, diversion rod 5 is all in insulating sleeve 7 in the clamp state, ensure that safety in utilization.
When applying, clamping jaw is the notch formed between described upper frid lower surface and described pressed slider upper surface, so when moving to top on initial position and described diversion rod, need guarantee that the vertical interval between upper frid lower surface and pressed slider upper surface is less than the vertical thickness of wire clamp pressing plate, and now described holddown spring must be in compressive state.It, by the upright position of the relatively described lower frid of described branch sleeve, can set the thrust of described holddown spring, ensure clamping effect of the present invention.
Because in the gripper clamp notch portion that upper frid 1 is formed with pressed slider 4, the real position contacted with wire clamp pressing plate is right side slot-open-section, so the maximization in order to ensure clamping force vertical stress component, the upper end of described diversion rod 5 is made to be connected to the right-hand part center of the lower surface of described pressed slider 4.
As shown in Figure 4 and Figure 5, described upper frid 1 also comprises contact pressing plate 11 and multiple lead 12 (the two is metal material and makes).For realizing upper frid 1 and the assembly connection contacting pressing plate 11 and lead 12, uniformly on frid 1 on described through hole that multiple Vertical dimension extends being set and the lower end of each through hole is set to counterbore.Described lead 12 one_to_one corresponding is assemblied in the through hole on described upper frid 1, and the external diameter of lead 12 is consistent with through-hole diameter on upper frid 1.The upper and lower side of described lead 12 all extends through hole on described upper frid 1.Radial pin-and-hole is set in the upper end of described lead 12, in pin-and-hole, installs pin carry out support guide post 12 and make it be fixed on frid 1, unlikely vertical landing.Certainly can also arrange radial flange (can be annular flange or annular interrupted flange continuously) in the upper end of described lead 12, the upper surface of the upper frid 1 of lower surface contact of flange, comes support guide post 12 and upper frid 1.Described lead 12 is nested with spring respectively, the upper end of spring is placed in the counterbore of described upper frid 1 through hole lower end all the time.In the lower end of lead 12, external screw thread is set.
As shown in Figure 4 and Figure 5, involved contact pressing plate 11 form is different.
Contacting pressing plate 11 described in Fig. 4 is an entirety, its lower surface is concavo-convex alternate wavy, and formed wavy raised line and groove bearing of trend be view front and back to, the lower surface of raised line is plane, and the bottom surface of groove can be plane (as diagram).Preferably make the left and right of raised line be less than the left and right of groove to width to width, move when realizing pinching action like this on pressed slider 4, the raised line part only contacting pressing plate 11 lower surface contacts with wire clamp pressing plate upper surface.As for the upper surface of described contact pressing plate 11, it can be plane, also can as shown in Figure 4, in corresponding with its lower surface wavy.On corresponding described on described contact pressing plate 11, on frid 1, through hole arranges vertically extending projection, projection is arranged the lower end threaded engagement of tapped blind hole and described lead 12, and the lower end of described spring is placed on the outer wall of corresponding projection respectively.As shown in Figure 4, projection is arranged in the groove of contact pressing plate 11 upper surface, and the raised line upper surface of upper surface is plane.
In Fig. 5, described contact pressing plate 11 is Split type structure, and it is made up of multiple separate stripe board, the bearing of trend of each stripe board consistent and be view direction front and back to.The lower surface of each stripe board is plane, and upper surface is as described above the same, arranges projection equally and connects with corresponding lead 12 and spring.
Relative to the simple structure described upper frid 1 lower surface being set to plane shown in Fig. 1 to Fig. 3, the outstanding advantages that alternate contact plane structure (Fig. 4, for the alternate contact action of contact pressing plate 11 lower surface raised line is in wire clamp pressing plate, forms the alternate contact action of each stripe board lower surface difference of contact pressing plate 11 in wire clamp pressing plate in Fig. 5) in Fig. 4, Fig. 5 has is analyzed as follows:
Upper the stressed of frid 1 is analyzed, although upper frid 1 is through multiple bolt in diagram, be connected between side plate 3 by its front and back sides, but still can be regarded as cantilever beam structure to a certain extent, pressed slider 4 gives it with upwards active force by wire clamp pressing plate, and these upwards the cantilever action effect that formed upper frid 1 of active force right-to-left (in diagram) is inconsistent, cause the deflection of frid 1 right-to-left inconsistent successively, so upper frid 1 free end is easily bent upwards in Long-Time Service situation, accelerate the speed that its clamping reliability lost efficacy, conventional method increases upper frid 1 thickness, improve its bending resistance, but the weight of whole device can be increased.
Need to polish to the contact-making surface of wire clamp pressing plate in addition before this device of use, so the flatness guaranteeing the whole plane of polishing must be needed, because during clamping wire clamp pressing plate with upper frid 1 contact plane for firmly to contact, if flatness tolerance is larger, the irregular contact gap of easy generation, not only affect clamping effect, and the stress making the cantilever action of above-mentioned active force affect formation local excessive is concentrated, and more easily causes frid 1 to be out of shape.
After the contact pressing plate 11 increasing structure as shown in Figure 4, Figure 5 at upper frid 1 and lead 12, wire clamp pressing plate indirectly-acting is in upper frid 1.Be subject to upwards after active force at contact pressing plate 11, whole contact pressing plate 11 moves, lead 12 can along through hole upwards vertically movement on upper frid 1, upper frid 1 is compressed with the spring contacted between pressing plate 11, spring acts on upwards upper frid 1 and contact pressing plate 11 respectively, downward power, when the upper surface of pressing plate 11 to be contacted contacts the lower surface of upper frid 1, move on contact pressing plate 11 stops.Now, upper frid 1 with contact spring between pressing plate 11 and produce elastic acting force, ensure clamping effect, simultaneously due to the cushioning effect of spring, change the state that frid 1 is subject to right-to-left active force, active force is reduced upper frid 1 deformation effect, and namely spring absorbs the stress deformation of frid 1.Frid 1 service time in prolongation.Particularly when contacting pressing plate 11 shown in Fig. 4, can further by the distortion of contact pressing plate 11 self, overcome the deformation effect of active force to upper frid 1, even and if now the contact-making surface flatness of wire clamp pressing plate differs greatly, also stress raisers can not be there are at contact-making surface, because it is cancelled by the self-deformation contacting pressing plate 11, so clamping effect can be better.
For contacting pressing plate 11 and lead 12 structure shown in above-mentioned Fig. 4 with Fig. 5, it can be transplanted on pressed slider 4, increases the non-deformability of pressed slider 4, extends working time.But consider that being also subject to diversion rod 5 near pressed slider 4 free end acts on, think and realize the synchronous of upper frid 1 and pressed slider 4 useful life, pressed slider 4 upper end is only simple planar structure as shown in the FIG..
As shown in Figure 6 to 8, uniform on frid 1 on described multiple vertically extending tapped through hole is set, the post 13 that leads is equipped with in each tapped through hole, the upper end assembling insulation handwheel 14 of the described post 13 that leads, the lower surface of the described post 13 that leads is arranged file sword 131, indicator light 15 with shown post 13 conducting of leading is set in the center of described insulation handwheel 14, for the conducting relation of indicator light 15 with the post 13 that leads, it can be the relation of being rigidly connected, also can be just can make the two conducting after pressing indicator light 15 downwards, and make again the conducting relation of the two disconnect when secondary pressing indicator light 15.By this technical scheme, no longer need in use to polish to the contact-making surface of wire clamp pressing plate in advance, the substitute is and drive the post 13 that leads to rotate by rotating insulated handwheel 14, by the file sword 131 led on post 13 lower surface, the oxide skin on wire clamp pressing plate is removed, it is to be noted herein, when leading post 13 scale removal with the drive of insulation handwheel 14, after need guaranteeing to be rotated down certain all numbers, then reverse two weeks, oxide skin powder is discharged, and then be rotated down and proceed oxide skin Transformatin.Indicator light 15 is used for indicating the removing completeness situation of oxide skin, namely when indicator light 15 in certain time length can continuous illumination and just show when not glimmering oxide skin remove up to standard, so preferably make indicator light 15 take secondary to press the structure be connected with leading between post 13, namely first time pressing makes the two connect, second time pressing makes the two disconnect, to ensure the useful life of indicator light 15.
Except the technical characteristic described in specification, be the known technology of those skilled in the art.