CN214850372U

CN214850372U - Crowbar type suspension clamp

Info

Publication number: CN214850372U
Application number: CN202121297361.9U
Authority: CN
Inventors: 易鸣
Original assignee: Individual
Current assignee: Changsha Electric Power Design Institute Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-11-23
Anticipated expiration: 2031-06-10

Abstract

A crowbar type suspension clamp comprises a wire clamping part, a pressing part and a hanging part, wherein the wire clamping part comprises a clamp hull and a wire pressing plate, the lower part of the wire pressing plate is provided with a clamping groove, and an accommodating space is formed between the wire pressing plate and the inner surface of the clamp hull for a wire to pass through; the pressing portion comprises a pair of L-shaped pressing pry bars arranged at the upper end of the line pressing plate, the intersecting positions of the vertical arms and the horizontal arms of the pressing pry bars are hinged to the two upper end surfaces of the line clamp ship body through pin shafts respectively, and locking mechanisms used for adjusting the distance between the two vertical arms of the pressing pry bars are arranged on the pressing pry bars. The middle part of the upper surface of the wire pressing plate is provided with a protruding part distributed along the width direction of the wire pressing plate, and horizontal arms of the pressing pry bar are symmetrically distributed on two sides of the protruding part. Adopt the technical scheme of the utility model, make the simple installation high efficiency of suspension clamp, when meetting frost snow disaster weather, can also effectively prevent the wire to slide, avoid the wire to snap and the emergence of tower collapse accident.

Description

Crowbar type suspension clamp

Technical Field

The utility model belongs to the technical field of the suspension clamp that high tension transmission line used and specifically relates to a crowbar formula suspension clamp.

Background

The direct connection equipment for installing the stranded wire on the iron tower in the power transmission circuit mainly adopts a suspension clamp and a strain clamp, the conventional suspension clamp comprises a clamp hull, connecting bolts, U-shaped bolts, a wire pressing plate, pins and the like, the suspension clamp adopts two U-shaped bolts, a worker has to tighten four nuts of the two U-shaped bolts on an overhead line every time when installing the clamp, the tightening force of the nuts has to be ensured to meet the use requirement, and the operation is very inconvenient.

Disclosure of Invention

For solving the problem that above-mentioned prior art exists, the aim at of this application provides a crowbar formula suspension clamp, through the nut of screwing up on the crowbar, reaches at every turn only need screw up a nut, just can exert pretension pressure on two crowbars simultaneously, need screw up four nuts before following and reduce to only need screw up a nut, alleviate workman's operational difficulty and intensity greatly.

The utility model provides a crowbar type suspension clamp, which comprises an electric wire clamping part, a pressing part and a hanging part, wherein the electric wire clamping part comprises a clamp hull and a wire pressing plate, the lower part of the wire pressing plate is provided with a clamping groove, and an accommodating space is formed between the wire pressing plate and the inner surface of the clamp hull for a lead to pass through; the pressing portion comprises a pair of L-shaped pressing pry bars arranged at the upper end of the line pressing plate, the intersecting positions of the vertical arms and the horizontal arms of the pressing pry bars are hinged to the two upper end surfaces of the line clamp ship body through pin shafts respectively, and locking mechanisms used for adjusting the distance between the two vertical arms of the pressing pry bars are arranged on the pressing pry bars.

Furthermore, the middle part of the upper surface of the line pressing plate is provided with a protruding part distributed along the width direction of the line pressing plate, and the horizontal arms of the pressing pry bar are symmetrically distributed on two sides of the protruding part.

Furthermore, the edge of the lower end of the horizontal arm of the compression pry bar is provided with a compression protrusion, and the compression protrusion is abutted to the wire pressing plate.

Preferably, the pressing projection is curved or semi-cylindrical.

Preferably, the protrusion is arc-shaped or semicircular.

Preferably, the inner surfaces of the clamping groove and the cable clamp hull are both arc-shaped.

Furthermore, the suspension part comprises a pair of hanging plates movably connected with the shell of the cable clamp hull, the lower ends of the hanging plates are hinged to the shell of the cable clamp hull through pin shafts and can rotate around the pin shafts, and the upper ends of the two hanging plates are provided with through holes and connected through bolts.

Further, the locking mechanism comprises a bolt and a nut, the upper ends of the vertical arms of the two pressing pry bars are provided with through holes, the bolt penetrates through the through holes in the two vertical walls, and the nut is used for adjusting the distance between the two vertical walls so that the pressing protrusion presses the wire pressing plate.

Adopt the technical scheme of the utility model, make suspension clamp's simple installation high-efficient, need not a large amount of instruments and accessories, greatly reduced workman's operational difficulty, improved the operating efficiency of installation. Meanwhile, when the weather is frost and snow, the sliding of the lead can be effectively prevented, and the lead is prevented from being broken and falling into the tower.

Drawings

Figures 1-3 are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain the principles of operation of the invention. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.

Fig. 1 is a schematic front view of a crowbar type suspension clamp according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a crowbar type suspension clamp according to an embodiment of the present invention;

fig. 3 is an exploded view of a crowbar type suspension clamp according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be described in detail with reference to the accompanying fig. 1-3.

As shown in fig. 1, the utility model provides a crowbar formula suspension clamp, including electric wire clamping part 1, clamping part 2 and linkage 3, electric wire clamping part 1 includes fastener hull 11 and line ball board 12, line ball board 12 lower part is equipped with draw-in groove 14, and forms an accommodation space between the internal surface of fastener hull 11, supplies the wire to run through.

The pressing part 2 comprises a pair of pressing pry bars (22,23) arranged at the upper end of the line pressing plate 12, the pressing pry bars (22,23) are L-shaped, the pressing pry bars (22,23) are formed by intersecting vertical arms and horizontal arms, and a gap is reserved between the horizontal arms and the line pressing plate; the crossing parts of the vertical arms and the horizontal arms of the pressing pry bars (22,23) are respectively hinged on two upper end surfaces of the wire clamp hull 11 through pin shafts (24,25), and locking mechanisms 21 used for adjusting the distance between the vertical arms of the two pressing pry bars (22,23) are arranged on the pressing pry bars (22, 23). When the locking mechanism 21 is screwed, the two pressing pry bars (22,23) rotate inwards around the pin shafts (24,25), and the horizontal arm applies pressing force downwards to the wire pressing plate 12, so that the wire pressing plate 12 applies pre-tightening pressure to the wire; similarly, when the locking mechanism is unscrewed, the two compression pry bars (22,23) rotate outwards about the bolts (24,25), and the horizontal arm releases the tension plate 12, thereby releasing the wire.

The utility model discloses when the installation wire, only need insert the wire and pass the accommodation space that forms between fastener hull 11 and the line ball board 12, then the locking mechanical system of screwing can accomplish the installation of wire, and the operation is convenient, labour saving and time saving, and the installation effectiveness is high.

As shown in fig. 2, a protrusion 13 distributed along the width direction of the tension disc 12 is provided at the middle of the upper surface of the tension disc 12, the horizontal arms of the pressing pry bars (22,23) are symmetrically distributed at both sides of the protrusion 13, and when the protrusion 13 slides to one side, the pressing pry bar at the side is pushed to rotate downwards, so that the wire at the side is further pressed and does not slide.

When the high-voltage power transmission tower encounters ice-cold weather or snow disasters, due to the effect of expansion with heat and contraction with cold and the fact that the lead is driven by gravity traction after being covered by snow, the lead slides and can be seriously broken, and the high-voltage power transmission tower is pulled down, so that great loss is caused.

After the structure is used, friction force generated by slight sliding of the lead can drive the line pressing plate 12 to move towards the sliding direction, so that the protruding part 13 correspondingly moves towards the sliding direction, the

pressing pry bar

22 or 23 is pushed to rotate downwards around the

pin shaft

24 or 25, the lead in the sliding direction is further pressed, the lead is clamped and cannot slide, and the high-voltage electric wire tower is ensured not to be pulled down.

Furthermore, the lower end edges of the horizontal arms of the pressing pry bars (22,23) are provided with pressing protrusions (26,27), and the pressing protrusions (26,27) are abutted to the wire pressing plate 12. The structure can make the pressing pry bars (22,23) rotate by using the pressing protrusions (26,27) as lever fulcrums and provide maximum pressing force.

Further, the pressing protrusions (26,27) are curved or semi-cylindrical. Facilitating rotation and providing maximum compression.

Further, the protrusion 13 is arc-shaped or semicircular. Facilitating rotation and providing maximum propulsion.

Furthermore, the inner surfaces of the clamping groove 14 and the wire clamp hull 11 are both arc-shaped, so that a round wire can conveniently pass through the clamping groove.

In a specific implementation, as shown in fig. 3, the suspension part 3 includes a pair of hanging plates (31,32) movably connected with the housing of the clamp hull 11, and the lower ends of the hanging plates are hinged to the housing of the clamp hull 11 through pins (33,34) and can rotate around the pins; the upper ends of the two hanging plates (31,32) are provided with through holes and are connected through bolts 35.

After the wire is installed into the suspension clamp, the wire is connected with a suspension insulator of the high-voltage line tower through the suspension part 3 and is positioned.

In the specific embodiment, the locking mechanism 21 is arranged at the upper end of the vertical arm of the pressing pry bars (22,23) so as to obtain a larger lever arm, and the use is convenient and labor-saving.

In a specific embodiment, the locking mechanism 21 is a bolt structure with a fixed nut at one end and a nut at the other end, the upper ends of the vertical arms of the pressing pry bars (22,23) are provided with through holes, the bolt penetrates through the through holes on the two vertical walls, and the distance between the two vertical walls is adjusted by the nut so that the pressing protrusion presses the wire pressing plate. When the pressing plate is installed, the pressing protrusions (26 and 27) can be pressed against the pressing plate 12 to provide pretightening force only by screwing one end of the bolt. The installation is very convenient.

By using the structure, the suspension clamp is simple, convenient and efficient to mount, a large number of tools and accessories are not needed, and the mounting operation efficiency is greatly improved. Meanwhile, when frost and snow weather occurs, the lead can be effectively prevented from sliding, and the lead is prevented from being broken and falling into the tower.

While the principles of the invention have been described in detail in connection with preferred embodiments, it is to be understood by those skilled in the art that the above-described embodiments are merely illustrative of exemplary implementations of the invention and are not limiting of the scope of the invention. The details in the embodiments do not constitute the limitations of the scope of the present invention, and any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the present invention all fall within the protection scope of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A crowbar type suspension clamp is characterized by comprising an electric wire clamping part, a pressing part and a hanging part, wherein the electric wire clamping part comprises a clamp hull and a wire pressing plate, the lower part of the wire pressing plate is provided with a clamping groove, and an accommodating space is formed between the wire pressing plate and the inner surface of the clamp hull for a lead to pass through; the pressing portion comprises a pair of L-shaped pressing pry bars arranged at the upper end of the line pressing plate, the intersecting positions of the vertical arms and the horizontal arms of the pressing pry bars are hinged to the two upper end surfaces of the line clamp hull through pin shafts respectively, and locking mechanisms used for adjusting the distance between the two vertical arms of the pressing pry bars are arranged on the pressing pry bars.

2. The crowbar-type suspension clamp as claimed in claim 1, wherein the center of the upper surface of the tension plate is provided with a protrusion extending along the width of the tension plate, and the horizontal arms of the two compression crowbars are symmetrically arranged on both sides of the protrusion.

3. The crowbar-type suspension clamp of claim 2, wherein the lower end edge of the horizontal arm of the pressing crowbar is provided with a pressing projection, and the pressing projection abuts against the wire pressing plate.

4. The crowbar type suspension clamp of claim 3, wherein the compression protrusion is arcuate or semi-cylindrical.

5. The crowbar type suspension clamp of claim 2, wherein the projection is arcuate or semi-circular.

6. The crowbar type suspension clamp of claim 1, wherein the inner surfaces of the slot and the clamp hull are both arcuate.

7. The crowbar type suspension clamp according to claim 1, wherein the suspension portion comprises a pair of hanging plates movably connected with the shell of the clamp hull, the lower ends of the hanging plates are hinged to the shell of the clamp hull through pin shafts and can rotate around the pin shafts, and the upper ends of the two hanging plates are provided with through holes and connected through bolts.

8. The suspension clamp as claimed in claim 3, wherein the locking mechanism includes a bolt and a nut, the upper ends of the vertical arms of the two pressing pry bars are provided with through holes, the bolt passes through the through holes of the two vertical arms, and the nut is used to adjust the distance between the two vertical arms so that the pressing projection presses the wire pressing plate.