CN213661147U - Parallel groove clamp for ground potential live working installation - Google Patents

Abstract

The utility model discloses a parallel groove clamp for installation of earth potential live working, which comprises a bolt fastening component and an elastic supporting structure which are arranged between a clamp body and a clamp cover plate, wherein the elastic supporting structure comprises an upper limiting groove arranged in the middle of the clamp cover plate, a lower limiting groove arranged in the middle of the clamp body relatively, and an elastic part with two ends butted in the upper limiting groove and the lower limiting groove, by adopting the technical scheme, an operator can carry out live working in a place which can not be reached by a live working vehicle, firstly, the clamp body and the clamp cover plate are mutually propped open for a certain distance by the elastic part, then, one wire groove of the clamp is installed on a main wire by an insulating rod and a tool, then, a shunt wire is installed in another wire groove of the clamp, and finally, the insulating rod is operated to twist a bolt, thereby the earth potential live working installation is completed on the ground, the operation is convenient, and the operation time of distribution network live working can be reduced.

Description

Parallel groove clamp for ground potential live working installation

Technical Field

The utility model relates to an electric power link fitting technical field, concretely relates to parallel groove clamp for installation of earth potential live working.

Background

The parallel groove clamp is a commonly used electric wire connection hardware tool, and is mainly used for connection of aluminum (alloy) stranded wires, steel-cored aluminum (alloy) stranded wires or copper stranded wires with middle and small cross sections, connection of steel stranded wires of overhead ground wires at positions not bearing tension, and jumper connection of non-linear towers. The parallel groove clamp adopts an upper clamping plate type bolt mounting structure and a lower clamping plate type bolt mounting structure, the connected wires are fixed between the upper clamping plate and the lower clamping plate with the wire grooves by means of fastening pressure of bolts to complete connection, and then the connection is transmitted through the flat gasket and the gasket to provide uniform and constant pressure for the connected wires.

In recent years, with the continuous development of national economy, stable and uninterrupted power supply gradually becomes the basic requirement of people for high-quality life, and the improvement of power supply reliability becomes an important task of the current power department. The line overhauls, fault handling and because of the implementation of projects such as user's access must have a power failure work according to traditional method, and in the face of this contradiction, the electric power department vigorously promotes distribution network live working, and operating personnel utilizes live working vehicle to carry out live working, when installing parallel groove clamp, need earlier loosen upper and lower splint's two sets of bolts earlier, lift the upper splint and just can make main conductor and reposition of redundant personnel wire pack into the wire casing of parallel groove clamp. However, due to the limitation of the terrain, the live working vehicle often cannot reach the working site, so that an operator cannot stand on the live working vehicle to connect the parallel groove clamp on the overhaul line at a certain height, and the operator standing on the ground is difficult to normally install the parallel groove clamp, so that the live working of the distribution network is difficult to implement in the rural power grid line, and the operation difficulty is high.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the live working vehicle among the prior art often can't reach the job site for subaerial operating personnel is difficult to normal installation parallel groove clamp, the big problem of the operation degree of difficulty, thereby provides one kind and makes things convenient for the operating personnel to carry out live working in the place that the live working vehicle can't reach, and convenient operation reduces the parallel groove clamp of joining in marriage net live working operating time.

In order to solve the technical problem, the utility model provides a parallel groove clamp for installation of earth potential live working, include:

the cable clamp comprises a cable clamp body, a cable clamp body and a cable clamp body, wherein two first wire grooves are arranged in parallel on the cable clamp body;

the wire clamp cover plate is provided with two second wire grooves which are vertically opposite to the two first wire grooves, and the first wire grooves and the second wire grooves are oppositely clamped to form wire grooves suitable for accommodating wires;

the bolt fastening assembly is arranged between the wire clamp body and the wire clamp cover plate in a penetrating mode, and applies clamping force to the wire clamp body and the wire clamp cover plate clamp after fastening; it is characterized by also comprising:

the elastic supporting structure is arranged between the wire clamp body and the wire clamp cover plate and comprises an upper limiting groove arranged in the middle of the wire clamp cover plate, a lower limiting groove arranged in the middle of the wire clamp body oppositely, and an elastic part with two ends abutting against the upper limiting groove and the lower limiting groove, wherein the elastic part exerts elastic biasing force which is far away from the wire clamp body and the wire clamp cover plate.

As a preferable scheme, two groups of bolt fastening assemblies are arranged along the width central line of the wire clamp body and the wire clamp cover plate, and the elastic supporting structure is arranged in the middle of the two groups of bolt fastening assemblies.

As a preferable scheme, a taper structure extending to the opening of the upper limiting groove is arranged on the wire clamp cover plate, and the caliber of the taper structure is gradually increased from one side of the upper limiting groove to the outside.

As a preferable scheme, an annular limiting step is arranged between the conical opening structure and the upper limiting groove, and the end surface of the lower limiting groove is in fit abutment with the limiting step.

Preferably, the elastic member is a cylindrical spring disposed in parallel with the two sets of bolt fastening assemblies.

As a preferred scheme, the wire clamp body is provided with two circular through holes corresponding to the two sets of bolt fastening assemblies, the wire clamp cover plate is provided with two kidney-shaped through holes opposite to the circular through holes, the upper limiting groove is positioned between the two kidney-shaped through holes, the lower limiting groove is positioned between the two circular through holes, and the bolt fastening assemblies are arranged in the circular through holes and the kidney-shaped through holes in a penetrating manner.

As a preferred scheme, an adjusting cushion block is installed at the top of the wire clamp cover plate, and the bottom of the adjusting cushion block is in contact with the top of the wire clamp cover plate in an arc surface structure.

As a preferred scheme, the adjusting cushion block is provided with a bolt hole suitable for a bolt fastening assembly to penetrate through, the top of the adjusting cushion block is provided with a strip-shaped groove, and the bolt head end of the bolt fastening assembly is limited in the strip-shaped groove.

Compared with the prior art, the technical scheme of the utility model have the following advantage:

1. the utility model provides a parallel groove clamp for installation of earth potential live working, install elastic component through setting up down respectively on the fastener body and the fastener apron, the depth and the diameter of this spacing recess are according to elastic component size design, both play the spacing installation effect to elastic component, can ensure to install the stranded conductor after, elastic component can not influence parallel groove clamp compression strand wires when compressing to the maximum extent promptly the spring compression is to the minimum either, adopt the parallel groove clamp of this technical scheme, the operation personnel can carry out live working in the place that live working vehicle can't reach, namely stand and carry out the fastener installation on the ground, prop up the fastener body and the fastener apron each other with the help of elastic biasing force of elastic component for a certain distance first, can supply main conductor and reposition of redundant personnel wire to insert the wire inslot of fastener, then install a wire casing of fastener on the main lead with insulator spindle and frock, pack into another wire casing of fastener with the reposition of redundant personnel wire again in, operate the insulator spindle at last and turn round tight bolt to just can accomplish ground potential live working installation subaerial, convenient operation does not receive the topography restriction, can be fine be applied to the complicated rural power grids distribution operation of topography, can reduce and join in marriage net live working operating time, the practicality is good.

2. The utility model provides an among the parallel groove clamp for installation of earth potential live working, be connected with the bell mouth structure through the opening part at last spacing recess, this kind of structure sets up, when installation elastomeric element, has increased the connection range of spacing recess with the help of the bell mouth structure, is favorable to more smooth and easy packing into of elastomeric element one end to go up the spacing recess, plays the guide effect to elastomeric element's installation, promotes the installation effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.

Fig. 1 is a schematic plan view of a parallel groove clamp according to the present invention;

fig. 2 is a side view of a parallel groove clamp provided by the present invention;

fig. 3 is a top view of the wire clamp body of the present invention;

fig. 4 is a top view of the cable clamp cover plate of the present invention;

description of reference numerals: 1-a wire clamp body, 11-a first wire groove, 12-a circular through hole, 2-a wire clamp cover plate, 21-a second wire groove, 22-a conical opening structure, 23-a limiting step, 24-a kidney-shaped through hole, 3-a bolt fastening assembly, 4-an upper limiting groove, 5-a lower limiting groove, 6-an elastic component and 7-an adjusting cushion block.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

The present embodiment is described in detail below with reference to the accompanying drawings:

the utility model provides a parallel groove clamp for installation of earth potential live working as shown in fig. 1-2, include:

the wire clamp comprises a wire clamp body 1, wherein two first wire grooves 11 are arranged in parallel on the wire clamp body;

the wire clamp cover plate 2 is provided with two second wire grooves 21 which are vertically opposite to the two first wire grooves 11, and the first wire grooves 11 and the second wire grooves 12 form wire grooves suitable for accommodating wires in a butt clamp manner;

the bolt fastening assembly 3 is arranged between the wire clamp body 1 and the wire clamp cover plate 2 in a penetrating mode, and applies clamping force to the wire clamp body 1 and the wire clamp cover plate 2 after fastening; further comprising:

the elastic supporting structure is arranged between the wire clamp body 1 and the wire clamp cover plate 2 and comprises an upper limiting groove 4 arranged in the middle of the wire clamp cover plate 2, a lower limiting groove 5 arranged in the middle of the wire clamp body 1 in an opposite mode, and an elastic part 6 with two ends abutting against the upper limiting groove 4 and the lower limiting groove 5, wherein the elastic part 6 exerts elastic biasing force which is far away from the wire clamp body 1 and the wire clamp cover plate 2.

The above embodiment is the core technical scheme of this embodiment, the elastic component 6 is installed by respectively arranging the lower limiting groove and the upper limiting groove on the wire clamp body 1 and the wire clamp cover plate 2, the depth and the diameter of the limiting groove are designed according to the size of the elastic component, so that the limiting installation function is achieved for the elastic component 6, and after the stranded wire is installed, the elastic component can not influence the parallel groove clamp to compress the stranded wire when being compressed to the maximum degree, namely the elastic component is compressed to the minimum degree, by adopting the parallel groove clamp of the technical scheme, an operator can carry out live working in places where a live working vehicle can not reach, namely, stands on the ground to carry out wire clamp installation, the wire clamp body 1 and the wire clamp cover plate 2 are mutually supported by virtue of the elastic biasing force of the elastic component 6 for a certain distance, and a main guide wire and a shunt guide wire can be inserted into a wire groove of the, then install a wire casing of fastener on the main lead with insulator spindle and frock, pack into another wire casing of fastener with the reposition of redundant personnel wire again in, operate the insulator spindle at last and turn round tight bolt to just can accomplish ground potential live working installation subaerial, convenient operation does not receive the topography restriction, can be fine be applied to the complicated rural power grids distribution operation of topography, can reduce and join in marriage net live working operating time, the practicality is good.

The specific arrangement of the elastic member is described in detail below with reference to fig. 1-2:

be provided with on the fastener apron 2 and extend to be connected to go up the bell mouth structure 22 of spacing recess 4 opening part, the bore of bell mouth structure 22 by go up 4 one sides of spacing recess and outwards increase gradually, wherein, elastomeric element 6 is for being on a parallel with two sets of the cylindrical spring that bolt-up subassembly set up, this kind of structure setting, when installation elastomeric element, with the help of bell mouth structure 22 has increased go up spacing recess 4's connection range, be favorable to more smooth and easy packing into of spring one end to go up spacing recess 4, it is right elastomeric element 6's installation plays the guide effect, promotes the installation effect.

As shown in fig. 1, an annular limiting step 23 is arranged between the tapered opening structure 22 and the upper limiting groove 4, the end surface of the lower limiting groove 5 is in fit abutment with the limiting step 23, the wire clamp body 1 and the wire clamp cover plate 2 clamp wires oppositely when the bolt is tightened, and the end surfaces of the lower limiting groove 5 are pressed in place when contacting the limiting step 23.

In this embodiment, as shown in fig. 2-4, the bolt fastening assemblies 3 are provided with two sets along the width central line of the cable clamp body 1 and the cable clamp cover plate 2, the bolt fastening assemblies 3 are composed of bolts, spacers, and nuts, specifically, the cable clamp body 1 is provided with two circular through holes 12 corresponding to the two sets of bolt fastening assemblies 3, the cable clamp cover plate 2 is provided with two kidney-shaped through holes 24 opposite to the two circular through holes 12, the upper limiting groove 4 is located between the two kidney-shaped through holes 24, the lower limiting groove 5 is located between the two circular through holes 12, the bolt fastening assemblies 3 are inserted into the circular through holes and the kidney-shaped through holes, the kidney-shaped through holes 24 are used for bolts to pass through and adjust the relative positions of the cover plates, and as can be known from the above structure, the elastic support structure is provided at the middle position of the two sets of bolt fastening assemblies 3, guarantee the elastic component 6 is right the fastener body 1 with the elastic force that fastener apron 2 was applyed is comparatively even stable, so that fastener body 1 and fastener apron open about steady, avoid appearing the condition of slope turn round, and through two sets of bolt-up subassembly 3 fastening make when fastener body 1 and fastener apron 2 the elastic component compression deformation.

As a preferred embodiment, as shown in fig. 1, an adjusting pad 7 is installed at the top of the wire clamp cover plate 2, the bottom of the adjusting pad 7 is in contact with the top of the wire clamp cover plate 2 in an arc surface structure, the radius of the arc surface of the adjusting pad 7 is the same as that of the arc surface on the wire clamp cover plate, when wires with different diameters are clamped in the wire grooves at the two ends of the parallel groove clamp, the wire clamp cover plate 2 can rotate along the kidney-shaped through hole to adjust the position, but the bolt position is ensured to be unchanged according to the tight contact between the adjusting pad 7 and the arc surface of the wire clamp cover plate 2.

The adjusting cushion block 7 is provided with a bolt hole suitable for the bolt fastening component 3 to penetrate through, the top of the adjusting cushion block is provided with a strip-shaped groove, the bolt head end of the bolt fastening component 3 is limited in the strip-shaped groove, the strip-shaped groove plays a role in installing and limiting the bolt and is used for preventing the bolt from rotating along with the nut when the nut is screwed down, and the stability and the reliability of the installation position of the bolt are guaranteed.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (8)

1. A parallel groove clamp for ground potential live working installation comprising:

the wire clamp comprises a wire clamp body (1), wherein two first wire grooves (11) are arranged in parallel on the wire clamp body;

the wire clamp cover plate (2) is provided with two second wire grooves (21) which are vertically opposite to the two first wire grooves (11), and the first wire grooves (11) and the second wire grooves (21) are oppositely clamped to form wire grooves suitable for accommodating wires;

the bolt fastening assembly (3) is arranged between the wire clamp body (1) and the wire clamp cover plate (2) in a penetrating mode, and applies clamping force to the wire clamp body (1) and the wire clamp cover plate (2) after fastening; it is characterized by also comprising:

elastic support structure, set up the fastener body (1) with between fastener apron (2), it is including setting up last spacing recess (4) in the middle of fastener apron (2), and set up relatively lower spacing recess (5) in the middle of fastener body (1) to and both ends hold the butt in go up spacing recess (4) and elastic component (6) in spacing recess (5) down, elastic component (6) are right fastener body (1) with the elastic biasing force that keeps away from each other is applyed to fastener apron (2).

2. The parallel groove clamp for earth potential live working installation according to claim 1, characterized in that: the bolt fastening assemblies (3) are arranged in two groups along the width central lines of the wire clamp body (1) and the wire clamp cover plate (2), and the elastic supporting structures are arranged in the middle positions of the two groups of bolt fastening assemblies (3).

3. The parallel groove clamp for earth potential live working installation according to claim 2, characterized in that: the wire clamp cover plate (2) is provided with a conical opening structure (22) which is connected to the opening of the upper limiting groove (4) in an extending mode, and the caliber of the conical opening structure (22) is gradually increased outwards from one side of the upper limiting groove (4).

4. A parallel groove clamp for earth potential live working installation according to claim 3, characterized in that: an annular limiting step (23) is arranged between the conical opening structure (22) and the upper limiting groove (4), and the end face of the lower limiting groove (5) is in fit butt joint with the limiting step (23).

5. Parallel groove clamp for earth potential live working installation according to any one of claims 1-4, characterized in that: the elastic part (6) is a cylindrical spring arranged in parallel with the two groups of bolt fastening assemblies.

6. The parallel groove clamp for earth potential live working installation according to claim 5, wherein: the fastener body (1) corresponds two sets of bolt-up subassembly (3) is provided with two circular through-holes (12), fastener apron (2) are provided with two waist shape through-holes (24) that circular through-hole (12) are relative, it is located between two waist shape through-holes (24) to go up spacing recess (4), spacing recess (5) are located between two circular through-holes (12) down, bolt-up subassembly (3) are worn to locate in circular through-hole and the waist shape through-hole.

7. The parallel groove clamp for earth potential live working installation according to claim 6, wherein: an adjusting cushion block (7) is installed at the top of the wire clamp cover plate (2), and the bottom of the adjusting cushion block (7) is in contact with the top of the wire clamp cover plate (2) in an arc surface structure.

8. The parallel groove clamp for earth potential live working installation according to claim 7, wherein: the adjusting cushion block (7) is provided with a bolt hole suitable for the bolt fastening assembly (3) to penetrate through, the top of the adjusting cushion block is provided with a strip-shaped groove, and the bolt head end of the bolt fastening assembly is limited in the strip-shaped groove.

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