CN209980949U - Transformer wire clamp - Google Patents

Abstract

The utility model is suitable for the field of wire clamps, and provides a transformer wire clamp, which comprises an upper clamping plate, lower plate and clamp wire pipe, the downward sunken a plurality of constant head tanks that form in lower plate surface, the lower plate surface has still bonded a plurality of rubber blocks, the rubber block left and right sides shrink is C shape in order to form the second portion of curling, the clamp wire pipe sets up between two adjacent rubber blocks, the clamp wire pipe includes the skeleton and bonds at the inboard rubber layer of skeleton, the skeleton is the linear opening that still sets up the through-put skeleton on hollow cylinder and the skeleton, still be provided with first portion of curling on the rubber block, first portion of curling is semicircular opening and opening direction upwards, just open threaded hole to the position of first portion of curling on the punch holder, threaded hole spiro union has clamping screw, clamping screw's tail end spiro union has lid shape nut, the first portion of curling of lid shape nut lower surface butt, this device has solved because there is the clearance between wire clamp and the wire and has leaded to the problem of creepage risk.

Description

Transformer wire clamp

Technical Field

The utility model relates to a wire presss from both sides the field, concretely relates to transformer wire presss from both sides.

Background

The current that the transformer need flow through the wire when power transmission and conversion is great, therefore if the contact between the wire clamp of centre gripping wire and the wire is inseparable firm enough, just produce the creepage risk easily, the wire clamp on the present market generally adopts insulation board processing to form, but the incision that forms after the insulating part processing easily forms creepage between wire clamp and wire, need design a new wire clamp for this reason to make between wire clamp clamping surface and the wire closely combine.

SUMMERY OF THE UTILITY MODEL

The utility model provides a transformer wire presss from both sides aims at solving because there is the clearance between wire clamp and the wire and leads to the problem of creepage risk.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize: a transformer wire clamp comprises an upper clamp plate, a lower clamp plate and a tubular wire clamping pipe, wherein the lower clamp plate is arranged symmetrically to the upper clamp plate, the surface of the lower clamp plate is recessed downwards to form a plurality of positioning grooves, a plurality of rubber blocks are further bonded on the surface of the lower clamp plate, the left side and the right side of each rubber block shrink towards the center of the corresponding rubber block to form a C-shaped part, the wire clamping pipe is arranged between two adjacent rubber blocks and is abutted against second curling parts at two ends, the wire clamping pipe comprises a framework and a rubber layer bonded on the inner side of the framework, the rubber layer is made of soft insulating materials, the framework is in a hollow cylindrical shape, a linear opening penetrating through the framework is further arranged on the framework, a first curling part is further arranged on the rubber block, the first curling part is in a semicircular opening direction and is upward, a threaded hole is formed in the position, opposite to the first curling part, a fixing screw rod is screwed in the threaded hole, the head, the tail end of the fixing screw rod is connected with a cap-shaped nut in a threaded mode, and the lower surface of the cap-shaped nut abuts against the first curling portion.

Furthermore, the locating slot is a concave V-shaped slot, a locating angle in transition fit with the locating slot is bonded on the wire clamping tube, and the locating angle is made of stainless steel materials.

Further, the first curling part is a semicircular opening, and the cover-shaped nut is also arranged in a semicircular shape.

Furthermore, the framework of the wire clamping pipe is made of titanium alloy materials, a plurality of groove-shaped notches are formed in the wire clamping pipe, and the rubber layer is bonded on the inner side of the framework.

Furthermore, the side faces of the upper clamping plate and the lower clamping plate are provided with screw holes for fixing the positions of the upper clamping plate and the lower clamping plate.

The utility model has the advantages that: the utility model discloses a design transformer wire clamp, through in inserting the wire into the wire clamping pipe, the head of rotatory clamping screw makes the clamping screw revolve down, the spiro union is extruded into first curl in the cap nut of clamping screw afterbody, the second curl of rubber block both sides extends outwards at this moment in order to extrude the wire clamping pipe of parcel among the second curl, the radial of wire clamping pipe is reduced in order to press from both sides the wire that sets up in the wire clamping pipe; the wire clamping tube comprises a framework and a rubber layer bonded on the inner side of the framework, the rubber layer is made of a soft insulating material, when the rubber layer is extruded by the second curling part, the rubber layer with a softer texture can be tightly bonded on the surface of the wire relative to the hard material, and the creepage risk is reduced by reducing the distance between the rubber layer and the wire.

Drawings

Fig. 1 is a schematic structural view of a transformer wire clamp according to the present invention;

fig. 2 is a schematic structural view of the wire clamping tube provided by the present invention.

In the figure: 10-upper splint; 20-lower splint; 30-a wire clamping pipe; 31-a backbone; 32-a rubber layer; 33-linear opening; 34-a groove-shaped notch; 40-positioning grooves; 50-a rubber block; 60-a second curl; 70-a first crimp; 80-a fixed screw; 90-cap nut; 100-orientation angle; 110-screw holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of protection of the present invention.

As shown in fig. 1-2, a transformer wire clamp includes an upper clamp plate 10, a lower clamp plate 20 symmetrically disposed with the upper clamp plate 10, and a wire clamping tube 30 in a shape of a circular tube, wherein the wire clamping tube 30 is used for clamping a wire, the surface of the lower clamp plate 20 is recessed downwards to form a plurality of positioning slots 40, the surface of the lower clamp plate 20 is further bonded with a plurality of rubber blocks 50, the left and right sides of each rubber block 50 contract towards the center of the rubber block 50 to form a second curling portion 60, the wire clamping tube 30 is disposed between two adjacent rubber blocks 50 and abuts against the second curling portions 60 at the two ends, the wire clamping tube 30 includes a framework 31 and a rubber layer 32 bonded inside the framework 31, the rubber layer 32 is made of a soft insulating material, the framework 31 is in a shape of a hollow cylinder, the framework 31 is further provided with a linear opening 33 penetrating through the framework 31, the rubber block 50 is further provided with a first curling portion 70, the first curling portion 70 is a semicircular opening and the opening direction, the threaded hole is opened to the position of just facing first curling portion 70 on punch holder 10, threaded connection has set screw 80 in the threaded hole, set screw 80's head sets up on punch holder 10, set screw 80's tail end spiro union has cap nut 90, cap nut 90 lower surface butt first curling portion 70, constructor uses tools such as spanner to twist the head of set screw 80, make set screw 80 and cap nut 90 whole move down splint 20, with the interference fit who keeps cap nut 90 and first curling portion 70 throughout, first curling portion 70 on rubber block 50 produces the deformation by the extrusion of cap nut 90 and drives the second curling portion 60 of both sides on rubber block 50 and extrude wire clamping pipe 30, wire clamping pipe 30 is extruded towards wire clamping pipe 30 center shrink deformation, linear opening 33 reduces gradually, the radial reduction of wire clamping pipe 30 is with the tight wire that sets up in wire clamping pipe 30.

Furthermore, the positioning groove 40 is a concave V-shaped groove, the positioning angle 100 in transition fit with the positioning groove 40 is bonded on the wire clamping tube 30, the positioning angle 100 is made of stainless steel material, after the positioning angle 100 is inserted into the positioning groove 40, the wire clamping tube 30 is wholly extruded by the second curling part 60, and when the wire clamping tube radially contracts, the size of the positioning angle 100 is kept unchanged.

Further, the first curved portion 70 is a semicircular opening, the cap nut 90 is also disposed in a semicircular shape, and when the first curved portion 70 is not deformed by an external force, the cross-sectional radius of the first curved portion 70 is smaller than the cross-sectional radius 0 of the cap nut 90. 5 cm to 1 cm.

Further, the skeleton 31 of wire clamping pipe 30 is the titanium alloy material, the many places of slotted breach 34 of opening on wire clamping pipe 30, the softer elasticity that possesses of titanium alloy texture, and set up many places slotted breach 34 on the skeleton 31 and make skeleton 31 be more easily receive external force deformation, rubber layer 32 bonds inside skeleton 31, because rubber layer 32 is the insulating material that the texture is softer, when rubber layer 32 receives the extrusion of second curling portion 60, the laminating that the softer rubber layer 32 of texture can be inseparabler on the wire surface for hard material, in essence through reducing the distance between rubber layer 32 and the wire in order to reduce the creepage risk.

Further, screw holes 110 for fixing the positions of the upper and lower clamp plates 10 and 20 are provided at the side surfaces of the upper and lower clamp plates 10 and 20, and the position of the entire wire clamp is fixed by inserting screws into the screw holes 110 and then screwing the screws to other components.

The utility model discloses a concrete theory of operation: constructor alternates into wire clamping pipe 30 with the wire among, use multiplexer utensil such as spanner rotatory fixing screw 80's head, make fixing screw 80 revolve down, the spiro union is stretched into first crimping portion 70 at the cap nut 90 of fixing screw 80 afterbody, because cap nut 90's cross section radius will be greater than first crimping portion 70 cross section radius, when cap nut 90 extrudes into first crimping portion 70, the whole by extrusion deformation of block rubber 50, the outside extension of second crimping portion 60 of block rubber 50 both sides is with extrusion wire clamping pipe 30, wire clamping pipe 30's radial shrink is with the wire of clamp setting in wire clamping pipe 30.

The wire clamping tube 30 comprises a framework 31 and a rubber layer 32 adhered to the inner side of the framework 31, the rubber layer 32 is made of a soft insulating material, when the rubber layer 32 is extruded by the second curling part 60, the rubber layer 32 which is soft can be attached to the surface of the wire more closely relative to a hard material, and the creepage risk is reduced by substantially reducing the distance between the rubber layer 32 and the wire.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims (5)

1. The utility model provides a transformer wire clamp, its characterized in that, including the punch holder, with the lower plate that the punch holder symmetry set up, be the tubulose spool of pressing from both sides of circle, the lower plate surface undercut forms a plurality of constant head tanks, the lower plate surface still is connected with a plurality of rubber blocks, the rubber block left and right sides to the rubber block center shrink is C shape in order to form the second portion of curling, the spool setting is adjacent two between the rubber block and the second portion of curling of butt both ends, the spool of pressing from both sides includes the skeleton and bonds in the inboard rubber layer of skeleton, the skeleton is hollow cylinder just still set up the linear opening that runs through the skeleton on the skeleton, still be provided with first portion of curling on the rubber block, first portion of curling is semicircular opening and opening direction upwards, just right on the punch holder the position of first portion of curling is opened threaded hole, the threaded hole is internally screwed with a fixing screw rod, the head of the fixing screw rod is arranged on the upper clamping plate, the tail end of the fixing screw rod is screwed with a cap-shaped nut, and the lower surface of the cap-shaped nut abuts against the first curling part.

2. The transformer wire clip of claim 1 wherein the positioning groove is a recessed V-shaped groove, and wherein a positioning angle is bonded to the conduit and in transition fit with the positioning groove, the positioning angle being made of stainless steel.

3. The transformer wire clip of claim 1, wherein the first crimp is a semicircular opening and the cap nut is also semicircular.

4. The transformer wire clamp according to claim 1, wherein the frame is made of a titanium alloy material, a plurality of groove-shaped notches are formed in the wire clamping tube, and the rubber layer is bonded to the inner side of the frame.

5. The transformer wire clip of claim 1, wherein screw holes are provided at both sides of the upper clamping plate and the lower clamping plate.

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