CN212588069U

CN212588069U - Lightning protection device for power distribution network line

Info

Publication number: CN212588069U
Application number: CN202021667703.7U
Authority: CN
Inventors: 马洪亮; 龚棉; 丁莉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-02-23
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses a distribution network line lightning protection device relates to lightning protection device technical field. The utility model discloses a structure includes extension board, support, riser No. two, the extension board structure includes extension board and extension board No. two, the vertical plate fixed connection of extension board and extension board No. two, be fixed with the protector on the horizontal plate top lateral wall of extension board No. two, be fixed with the insulator on the horizontal plate top lateral wall of extension board No. two, the bottom lateral wall of support is fixed on the protector top, the articulated telescopic screw rod of support top, the fixed clearance ball of telescopic screw rod left end, the top at the insulator of riser and No. two riser bottom fixings, the bottom of the right side wall of riser is fixed with the lower plate, be provided with the punch holder directly over the lower plate, the punch holder passes through spring hinge and riser top fixed connection No. one, be fixed with the static clearance ball on the punch holder. The utility model discloses be convenient for install.

Description

Lightning protection device for power distribution network line

Technical Field

The utility model relates to a lightning protection device technical field especially relates to a distribution network line lightning protection device.

Background

The lightning stroke disconnection is a common problem, and large-area power failure, loss of electricity sales and serious personal injury accidents caused by the disconnection and insulator flashover of a power line and huge economic loss caused by the large-area power failure and the loss are caused. The prior art line lightning protection device is provided with a line insulator lightning protection overvoltage protector, and the main structure of the prior art line lightning protection device comprises a protector, a gap ball, a support plate and a hoop. The anchor ear is arranged on the insulator and mainly used for fixing the cable on the insulator, and the top side wall is fixed with the static gap ball. The hoop adopts an upper clamping plate structure and a lower clamping plate structure, the two clamping plates clamp the cable, then four corners are fixed through screws respectively, the installation process is trivial, and the difficulty of high-altitude operation is increased.

Accordingly, one skilled in the art provides a subject to solve the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the installation process in the prior art is trivial and trivial, and the difficulty of high altitude construction is increased.

In order to solve the technical problems, the utility model provides a lightning protection device for a power distribution network line, which comprises,

the main body structure comprises a support plate, the support plate structure comprises a first support plate and a second support plate, the first support plate is of an L-shaped plate-shaped structure, the second support plate is of an L-shaped plate-shaped structure, vertical plates of the first support plate and the second support plate are fixedly connected, a protector is fixed on the top side wall of a transverse plate of the first support plate, an insulator is fixed on the top side wall of the transverse plate of the second support plate, and the support plate plays a role in integral support; the support is of an obtuse-angle combined metal plate-shaped structure, the bottom side wall of the support is fixed to the top end of the protector, the upper left corner of the support is hinged to a telescopic screw, a movable gap ball is fixed to the left end of the telescopic screw, and the support plays a role in supporting the telescopic screw and the movable gap ball; the static gap ball is fixed at the top end of the insulator through a fixing piece, and the static gap ball and the dynamic gap ball form a flow guide ball;

the fixing part structure comprises a first vertical plate, the first vertical plate is of a rectangular plate structure, the bottom end of the first vertical plate is fixed to the top end of the insulator, a lower clamping plate is fixed to the bottom of the right side wall of the first vertical plate, an upper clamping plate is arranged right above the lower clamping plate and fixedly connected with the top end of the first vertical plate through a spring hinge, a cable is clamped between the upper clamping plate and the lower clamping plate, and the first vertical plate plays a role of supporting the clamping plate; the structure of No. two risers is the same with the structure of a riser, No. two riser bottom fixings are in the bottom of insulator, and set up in splint and right side, No. two risers can prevent that the cable from slipping away from the splint right side.

As a further aspect of the present invention: the lower plate is a concave arc-shaped plate structure, the upper plate is a convex arc-shaped plate structure, the upper plate and the lower plate are made of metal materials, and the cable is wrapped by the upper plate and the lower plate and conducts surface current of the cable.

As a further aspect of the present invention: the static gap ball is fixed on the top side wall of the upper clamping plate and conducts current in the clamping plate.

As a further aspect of the present invention: and a pressing plate is arranged right above the second vertical plate and is of a circular plate-shaped structure, a threaded column is fixed at the central axis of the bottom side wall of the pressing plate, the threaded column is screwed into a threaded hole in the top side wall of the second vertical plate, and the threaded column is screwed downwards to drive the pressing plate to move downwards, so that the pressing plate is pressed on the upper right corner of the upper clamping plate, and the upper clamping plate is prevented from being lifted by upward force of the cable.

As a further aspect of the present invention: the telescopic screw rod is made of metal materials, the screw rod of the telescopic screw rod is screwed in or out of the screw sleeve to drive the movable gap ball to move left and right so as to change the distance between the movable gap ball and the static gap ball, and the telescopic screw rod conducts the current of the movable gap ball to the protector through the support.

As a further aspect of the present invention: the vertical plate of the support plate is inserted into the sleeve plate, the sleeve plate is of a cuboid groove body structure, a top side wall groove of the sleeve plate is a mounting groove, the vertical plate of the first support plate is fixed on the right half portion of the mounting groove, the vertical plate of the second support plate is inserted into the left half portion of the mounting groove, and the vertical plate of the second support plate can move up and down in the mounting groove to change the horizontal potential difference of the first support plate and the second support plate.

As a further aspect of the present invention: the lead screw is arranged in a strip-shaped through hole of a vertical plate of the first support plate, a first gear is fixed at the bottom end of the lead screw, a moving block is sleeved on the lead screw and fixedly connected with the right side wall of the second support plate, and the lead screw rotates to enable the moving block to move up and down so as to drive the second support plate to move up and down.

As a further aspect of the present invention: the mounting groove right side wall is provided with a groove, the bottom of the groove is meshed with the right end of the first gear, the gear column of the second gear extends out of the right side wall of the sleeve plate and fixes a knob, the knob controls the gear column and the second gear to rotate, and the second gear drives the first gear and the screw rod to rotate.

The utility model has the advantages that:

(1) the utility model discloses set up the mounting, during the installation, with extension board fixed mounting on the wire pole, lift the punch holder left, place the cable on the lower plate, loosen the punch holder, the punch holder rotates right under the effect of spring hinge, presses the top survey at the cable, and the rotating clamp plate makes the screw thread post rotating downwards, and the clamp plate makes the left end of clamp plate press the upper right corner at the punch holder along with screw thread post downstream, makes the cable fix on the insulator. The utility model discloses be convenient for install.

(2) The utility model discloses major structure receives the thunderbolt overvoltage when the circuit, and when response overvoltage had not reached the insulator flashover yet, the cable surface electric current passed through the mounting conduction for the static clearance ball, and the static clearance ball begins to discharge with the dynamic clearance ball, later through flexible screw rod and support with lightning current direction protector, the zinc oxide current-limiting element release in the protector is flowed through to the thunder and lightning, and the power frequency afterflow is then cut by zinc oxide current-limiting element, reaches the purpose of taking shelter from thunder. The utility model discloses it is lightning-arrest to need not to destroy the cable ground connection.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic view of a fastener structure;

fig. 3 is a bottom cross-sectional view of a strap plate.

Wherein: the device comprises a sleeve plate 10, a first support plate 11, a second support plate 12, a protector 13, a support 14, a telescopic screw 15, a movable gap ball 16, an insulator 17, a static gap ball 18, a cable 19, a fixing part 20, a first vertical plate 21, an upper clamping plate 22, a lower clamping plate 23, a spring hinge 24, a second vertical plate 25, a pressing plate 26, a screw rod 30, a moving clamp 31, a first gear 32, a second gear 33 and a knob 34.

Detailed Description

The lightning protection device for the power distribution network line provided by the embodiment has the structure shown in fig. 1-3, and comprises,

the main body structure comprises a support plate, the support plate structure comprises a first support plate 11 and a second support plate 12, the first support plate 11 is of an L-shaped plate-shaped structure, the second support plate 12 is of an L-shaped plate-shaped structure, vertical plates of the first support plate 11 and the second support plate 12 are fixedly connected, a protector 13 is fixed on the top side wall of a transverse plate of the first support plate 11, an insulator 17 is fixed on the top side wall of the transverse plate of the second support plate 12, and the support plate plays a role in integral support; the support 14 is of an obtuse-angle combined metal plate-shaped structure, the bottom side wall of the support 14 is fixed to the top end of the protector 13, the upper left corner of the support 14 is hinged to a telescopic screw 15, a movable gap ball 16 is fixed to the left end of the telescopic screw 15, and the support 14 plays a role in supporting the telescopic screw 15 and the movable gap ball 16; the static gap ball 18 is fixed at the top end of the insulator 17 through a fixing piece 20, and the static gap ball 18 and the dynamic gap ball 18 form a flow guide ball;

the fixing part 20 is structurally characterized in that the first vertical plate 21 is of a rectangular plate structure, the bottom end of the first vertical plate 21 is fixed to the top end of the insulator 17, a lower clamping plate 23 is fixed to the bottom of the right side wall of the first vertical plate 21, an upper clamping plate 22 is arranged right above the lower clamping plate 23, the upper clamping plate 22 is fixedly connected with the top end of the first vertical plate 21 through a spring hinge 24, a cable 19 is clamped between the upper clamping plate 22 and the lower clamping plate 23, and the first vertical plate 21 plays a role in supporting the clamping plate; no. two riser 25, No. two riser 25's structure and the same of riser 21, No. two riser 25 bottom is fixed in the bottom of insulator 17, and sets up in splint and right side, No. two riser 25 can prevent that cable 19 from slipping away from the splint right side.

The lower plate 23 is a concave arc-shaped plate structure, the upper plate 22 is a convex arc-shaped plate structure, the upper plate 22 and the lower plate 23 are made of metal materials, and the upper plate 22 and the lower plate 23 wrap cables and conduct surface currents of the cables.

The static clearance balls 18 are fixed on the top side wall of the upper clamping plate 22, and the static clearance balls 18 conduct current in the clamping plate.

A pressing plate 26 is arranged right above the second vertical plate 25, the pressing plate 26 is of a circular plate-shaped structure, a threaded column is fixed to the central axis of the bottom side wall of the pressing plate 26, the threaded column is screwed into a threaded hole in the top side wall of the second vertical plate 25, the threaded column is screwed downwards to drive the pressing plate 26 to move downwards, the pressing plate 26 is pressed on the upper right corner of the upper clamping plate 22, and therefore the cable 19 is prevented from applying upward force to the upper clamping plate 22, and the upper clamping plate 22 is prevented from being lifted.

The telescopic screw 15 is made of metal materials, the screw of the telescopic screw 15 is screwed in or out of the screw sleeve to drive the movable gap ball 16 to move left and right so as to change the distance between the movable gap ball 16 and the static gap ball 18, and the telescopic screw 15 conducts the current of the movable gap ball 16 to the protector 13 through the support 14.

The vertical plate of the support plate is inserted into the sleeve plate 10, the sleeve plate 10 is of a cuboid groove body structure, a groove in the top side wall of the sleeve plate 10 is a mounting groove, the vertical plate of the first support plate 11 is fixed on the right half portion of the mounting groove, the vertical plate of the second support plate 12 is inserted into the left half portion of the mounting groove, and the vertical plate of the second support plate 12 can move up and down in the mounting groove to change the horizontal potential difference between the first support plate 11 and the second support plate 12.

A screw rod 30 is arranged in a strip-shaped through hole of a vertical plate of the first support plate 11, a first gear 32 is fixed at the bottom end of the screw rod 30, a moving block 31 is sleeved on the screw rod 30, the moving block 31 is fixedly connected with the right side wall of the second support plate 12, and the screw rod 30 rotates to enable the moving block 31 to move up and down so as to drive the second support plate 12 to move up and down.

Be provided with No. two gears 33 in the mounting groove right side wall recess, No. two gears 33's bottom and the meshing of a gear 32 right-hand member, No. two gears 33's gear post stretches out the lagging 10 right side wall to fixed a knob 34, knob 34 control gear post and No. two gears 33 rotate, No. two gears 33 drive a gear 32 and lead screw 30 and rotate.

The utility model discloses a theory of operation: when the cable is installed, the support plate is fixedly installed on a telegraph pole, the upper clamping plate 22 is lifted leftwards, the cable 19 is placed on the lower clamping plate 23, the upper clamping plate 22 is loosened, the upper clamping plate 22 rotates rightwards under the action of the spring hinge 24 and presses the top side of the cable 19, the pressing plate 26 is rotated to enable the threaded column to rotate downwards, the pressing plate 26 moves downwards along with the threaded column, the left end of the pressing plate 26 presses the upper right corner of the upper clamping plate 22, and the cable 19 is fixed on the insulator; when the line is subjected to lightning overvoltage and the induced overvoltage does not reach the flashover of the insulator 17, the surface current of the cable 19 is transmitted to the static gap ball 18 through the fixing piece, the static gap ball 18 and the movable gap ball 16 start to discharge, then the lightning current is guided to the protector 13 through the telescopic screw rod 15 and the bracket 14, the lightning current is released through the zinc oxide current limiting element in the protector 13, and the power frequency follow current is cut off by the zinc oxide current limiting element, so that the purpose of lightning protection is achieved. The utility model discloses be convenient for install.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A lightning protection device for a power distribution network line is characterized by comprising,

the main body structure comprises a support plate, the support plate structure comprises a first support plate (11) and a second support plate (12), the first support plate (11) is of an L-shaped plate-shaped structure, the second support plate (12) is of an L-shaped plate-shaped structure, vertical plates of the first support plate (11) and the second support plate (12) are fixedly connected, a protector (13) is fixed on the top side wall of a transverse plate of the first support plate (11), an insulator (17) is fixed on the top side wall of the transverse plate of the second support plate (12), and the support plates play a role in integral support; the support (14) is of an obtuse-angle combined metal plate-shaped structure, the bottom side wall of the support (14) is fixed to the top end of the protector (13), the upper left corner of the support (14) is hinged to a telescopic screw rod (15), a movable gap ball (16) is fixed to the left end of the telescopic screw rod (15), and the support (14) plays a role in supporting the telescopic screw rod (15) and the movable gap ball (16); the static gap ball (18) is fixed at the top end of the insulator (17) through a fixing piece (20), and the static gap ball (18) and the dynamic gap ball (16) form a flow guide ball;

the fixing part (20), the fixing part (20) structure includes, a vertical plate (21), the vertical plate (21) is a rectangular plate structure, the bottom end of the vertical plate (21) is fixed on the top end of the insulator (17), the bottom of the right side wall of the vertical plate (21) is fixed with a lower clamping plate (23), an upper clamping plate (22) is arranged right above the lower clamping plate (23), the upper clamping plate (22) is fixedly connected with the top end of the vertical plate (21) through a spring hinge (24), a cable (19) is clamped between the upper clamping plate (22) and the lower clamping plate (23), and the vertical plate (21) plays a role of supporting the clamping plate; no. two riser (25), the structure of No. two riser (25) is the same with the structure of a riser (21), No. two riser (25) bottom mounting is in the bottom of insulator (17), and set up in splint with the right side, No. two riser (25) can prevent that cable (19) from slipping away from the splint right side.

2. The lightning protection device for distribution network lines of claim 1, wherein: lower plate (23) are recessed arc platelike structure, upper plate (22) are the arc platelike structure of epirelief, upper plate (22) and lower plate (23) all adopt the metal material, cable, and conduction cable surface current are lived in upper plate (22) and lower plate (23) parcel.

3. The lightning protection device for distribution network lines of claim 1, wherein: the static clearance ball (18) is fixed on the top side wall of the upper clamping plate (22), and the static clearance ball (18) conducts current in the clamping plate.

4. The lightning protection device for distribution network lines of claim 1, wherein: a pressing plate (26) is arranged right above the second vertical plate (25), the pressing plate (26) is of a circular plate-shaped structure, a threaded column is fixed to the central axis of the bottom side wall of the pressing plate (26), the threaded column is screwed into a threaded hole in the top side wall of the second vertical plate (25), the threaded column is screwed downwards to drive the pressing plate (26) to move downwards, the pressing plate (26) is pressed on the upper right corner of the upper clamping plate (22), and therefore the cable (19) is prevented from exerting upward force on the upper clamping plate (22), and the upper clamping plate (22) is opened.

5. The lightning protection device for distribution network lines of claim 1, wherein: the telescopic screw (15) is made of metal materials, the screw of the telescopic screw (15) is screwed in or out of the screw sleeve to drive the movable gap ball (16) to move left and right so as to change the distance between the movable gap ball (16) and the static gap ball (18), and the current of the movable gap ball (16) is conducted to the protector (13) through the support (14) by the telescopic screw (15).