CN111446683A

CN111446683A - Snow accumulation prevention device for power cable

Info

Publication number: CN111446683A
Application number: CN202010395142.8A
Authority: CN
Inventors: 沈施笠
Original assignee: Huzhou Nanxun Shangfu Cable Co Ltd
Current assignee: Ezhou Power Supply Co of State Grid Hubei Electric Power Co Ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-07-24
Anticipated expiration: 2040-05-12
Also published as: CN111446683B

Abstract

The invention relates to the technical field of power cables and discloses a snow accumulation prevention device for a power cable, which comprises a slide rail, wherein a snow removing box is connected above the slide rail in a sliding manner, a snow accumulation bin is arranged at the upper part of the snow removing box, a movable plate is connected in the inner cavity of the snow accumulation bin in a sliding manner, a magnet sheet is arranged at the lower end of the movable plate, an electromagnet is fixedly arranged at the lower wall of the inner cavity of the snow accumulation bin, symmetrical spring support rods are arranged at the lower part of the snow accumulation bin, a guide rod is arranged between the spring support rods, a slide block is connected in the middle part of the inner cavity of the snow removing box in a sliding manner, and elastic wedge. This be used for power cable to prevent snow device, through snow storehouse splendid attire snow, make the guide arm whereabouts start snow removing case, cooperation connecting rod promotes the elasticity voussoir, starts the electro-magnet and repels the fly leaf and get rid of the snow braking to reached according to the snow volume automatic start snow removing, clear away the effect that in time the braking stopped after a round of snow.

Description

Snow accumulation prevention device for power cable

Technical Field

The invention relates to the technical field of power cables, in particular to a snow accumulation prevention device for a power cable.

Background

Because the living standard of people in China is continuously improved, the power industry is also directly promoted to develop, the cable is one of indispensable transmission equipment in the existing power industry, the cable can be used for transmitting electric energy far away from thousands of households to reach the purpose of power transmission, the cable is mostly used for a power tower in the laying process, the high-altitude laying is carried out, the electric shock injury of the cable to a human body is prevented, and when the winter meets the weather of snowing, snow is accumulated on the cable, the weight of the cable is increased, and the twisting and the collapse of the power tower are possibly caused.

The existing snow accumulation prevention device for the power cable is still not ideal in effect in the actual use process, partial device can automatically open snow removal in snow days when the snow accumulation amount is less, the snow removal effect can not be automatically started according to the snow accumulation amount, and after one round of accumulated snow is removed, a suitable detection device is not available, the snow accumulation prevention device can still continuously operate, and electric energy is wasted.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a snow accumulation prevention device for a power cable, which has the advantages of automatically starting snow removal according to the snow accumulation amount, timely braking and stopping after removing a round of accumulated snow and the like, and solves the problems that the common snow accumulation prevention device for the cable cannot reasonably automatically start snow removal according to the snow accumulation amount and cannot timely brake and stop after removing a round of accumulated snow.

(II) technical scheme

In order to achieve the purposes of automatically starting snow removal according to the snow accumulation amount, timely braking and stopping after removing a wheel of accumulated snow and the like, the invention provides the following technical scheme: a snow accumulation prevention device for a power cable comprises a slide rail, a snow removal box is connected above the slide rail in a sliding manner, a first spring is arranged in an inner cavity of a side wall of the snow removal box, a vibration plate is connected on the side wall of the snow removal box in a sliding manner, a second spring is fixedly connected between the vibration plate and the side wall of the snow removal box, a snow accumulation bin is arranged at the upper part of the snow removal box, an inner cavity of the snow accumulation bin is connected with a movable plate in a sliding manner, a magnet sheet is arranged at the lower end of the movable plate, an electromagnet is fixedly mounted at the lower wall of the inner cavity of the snow accumulation bin, symmetrical spring support rods are arranged at the lower part of the snow accumulation bin, a guide rod is arranged between the spring support rods, a slide block is connected in the middle of the inner cavity of the snow removal box in a sliding manner, elastic wedge blocks are arranged at the front part and the rear part, the snow removing device is characterized in that the lower portion of the snow removing box is rotatably connected with symmetrical brush wheels, a driving device is fixedly mounted on the lower portion of the snow removing box, driving gears extending to the brush wheels are arranged on the front portion and the rear portion of the driving device, sliding shovels are arranged on the front portion and the rear portion of the snow removing box, and connecting rods are arranged on the front portion and the rear portion of the sliding rails.

Preferably, the side face of the snow removing box is provided with an inclined slope surface with a certain angle, so that the snow can quickly slide under the action of the gravity of the snow, and the snow can be prevented from being accumulated.

Preferably, the upper portion of snow removing case is provided with the sheetmetal that matches with the guide arm, when the guide arm moved to the middle part of sheetmetal, can switch on the circuit drive snow removing case and drive arrangement.

Preferably, the front and the rear of the middle part of the snow removing box are provided with through holes, and the through holes are matched with the connecting rod, so that the connecting rod can extend into the brake.

Preferably, the middle inner cavity of the snow removing box is provided with a contact piece matched with the elastic wedge block, the elastic wedge block is arranged to be a metal conductor, and when the elastic wedge block contacts the corresponding contact piece, the electromagnet can be started.

Preferably, the left side of the inner cavity of the snow collecting bin is provided with symmetrical slideways, the slideways are matched with the movable plate, and the slideways can enable the movable plate to move laterally.

Preferably, the outer side of the brush wheel is provided with teeth matched with the driving gear, the inner side of the brush wheel is provided with bristles, and when the driving gear drives the brush wheel to rotate through the teeth, the brush wheel can fully remove snow on the surface of the cable by the bristles on the inner side.

Preferably, the upper portion of connecting rod is provided with the arch that matches with the elastic wedge, and the connecting rod can utilize the arch to promote the elastic wedge and drive the slider motion soon to when the elastic wedge receives the inner chamber of wedge dog's effect retraction slider, shelter from the contact piece, secondary contact to the contact piece when avoiding the elastic wedge to reply.

(III) advantageous effects

Compared with the prior art, the invention provides a snow accumulation prevention device for a power cable, which has the following beneficial effects:

1. this be used for power cable to prevent snow device, through lateral wall and the vibration board with snow removing case, set certain inclination, the snowflake is difficult to adhere to promptly, it is great when the snow falls, the snowflake piles up to the certain degree on the lateral wall of snow removing case and vibration board gradually, the vibration board can be because of the pressure second spring of pushing down, make self remove, its upper portion's snow then collides with the snow of lower part, cause not hard up, corresponding landing, and the vibration board is because of the energy change when replying, can strike first spring, the energy is constantly transmitting each other afterwards, the vibration board is then constantly up-and-down motion, the snow of the top of shaking down, thereby reached and avoided the accumulational effect of self snow.

2. This be used for power cable to prevent snow device piles up on the fly leaf constantly through the snowflake, makes the fly leaf bear the pressure of snow on the equal unit area cable, and the fly leaf then falls to certain degree under the pressure, and pushes down the spring vaulting pole, makes it drive guide arm and sheetmetal contact, and the switch-on circuit, snow removing case start then along slide rail motion snow removing to the effect of snow according to the automatic start snow removing of snow accumulation volume has been reached.

3. This a be used for power cable to prevent snow device sets up the brush wheel and the smooth shovel of symmetry through the lower part at snow removing case, when snow removing case forward or the backward motion along the slide rail, correspond ascending smooth shovel of side and can remove most snow earlier, and the brush wheel can rotate under drive arrangement's drive afterwards, clears away remaining snow bits on the cable to reached and prevented that snow from freezing the effect of damaging the cable.

4. This be used for power cable to prevent snow device, when moving to the end along the slide rail through snow removing case, correspond ascending connecting rod of side, can stretch into the inner chamber of snow removing case along the through-hole on the snow removing case promptly, and the arch on the connecting rod can utilize the elastic wedge who corresponds one side, promote the slider motion, make the slider drive the elastic wedge who corresponds, contact the contact piece, the starting electromagnet, make it repel the magnet piece, the magnet piece makes the fly leaf bounce then, pour snow on it, make the guide arm no longer with the sheetmetal switch-on, snow removing case stop motion then, synchronous connecting rod drives the arch on it and stretches into contact piece department, the elastic wedge who corresponds receives arch and wedge dog effect, it resets to drive the slider, thereby reached and cleared away the effect that the braking in time stopped after a round of snow.

5. This be used for power cable to prevent snow device sets up the slide through inner chamber one side at the snow storehouse, makes the fly leaf move along the slide, pours the snow side direction on it, falls to the lateral wall and the vibration board of snow removing case on, final side discharge to reached and avoided discharging the effect on the cable with snow.

6. This be used for power cable to prevent snow device, through with snow removing case setting on the slide rail, make its can free fore-and-aft direction motion, and snow removing box is small and exquisite, convenient maintenance to low in manufacturing cost is honest and clean, thereby has reached the effect that the practicality is high.

Drawings

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

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

FIG. 4 is an enlarged view at C of FIG. 1;

FIG. 5 is a left side sectional view of a connecting portion of a brush wheel and the like according to the present invention;

FIG. 6 is a top cross-sectional view of a connecting portion of a slider or the like according to the present invention;

fig. 7 is a front view of the rear slide and link of the present invention.

In the figure: the snow removing device comprises a sliding rail 1, a snow removing box 2, a first spring 3, a vibrating plate 4, a second spring 5, a snow accumulating bin 6, a movable plate 7, a magnet piece 8, an electromagnet 9, a spring support rod 10, a guide rod 11, a sliding block 12, an elastic wedge block 13, a third spring 14, a wedge-shaped stop block 15, a brush wheel 16, a driving device 17, a driving gear 18, a sliding shovel 19 and a connecting rod 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a snow accumulation prevention device for power cables comprises a slide rail 1, a snow removal box 2 is slidably connected above the slide rail 1, the side surface of the snow removal box 2 is provided with an inclined slope surface with a certain angle, which enables snow to rapidly slide under the action of self gravity to avoid accumulation of the snow, the upper part of the snow removal box 2 is provided with a metal sheet matched with a guide rod 11, when the guide rod 11 moves to the middle part of the metal sheet, a circuit can be connected to drive the snow removal box 2 and a driving device 17, the front part and the rear part of the middle part of the snow removal box 2 are both provided with through holes, the through holes are matched with a connecting rod 20, the connecting rod 20 can extend into the through holes to brake, the middle inner cavity of the snow removal box 2 is provided with a contact piece matched with an elastic wedge 13, the elastic wedge 13 is provided with a metal conductor, when the elastic wedge 13 contacts the corresponding contact piece, an electromagnet, a vibrating plate 4 is connected on the side wall of the snow removing box 2 in a sliding manner, a second spring 5 is fixedly connected between the vibrating plate 4 and the side wall of the snow removing box 2, a snow accumulating bin 6 is arranged at the upper part of the snow removing box 2, symmetrical slideways are arranged at the left side of the inner cavity of the snow accumulating bin 6, the slideways are matched with the movable plate 7, the movable plate 7 can move laterally, the inner cavity of the snow accumulating bin 6 is connected with the movable plate 7 in a sliding manner, a magnet sheet 8 is arranged at the lower end of the movable plate 7, an electromagnet 9 is fixedly arranged at the lower wall of the inner cavity of the snow accumulating bin 6, the surface adjacent to the magnet sheet 8 after the electromagnet 9 is electrified has the same magnetism, symmetrical spring support rods 10 are arranged at the lower part of the snow accumulating bin 6, a guide rod 11 is arranged between the spring support rods 10, metal balls are arranged at the left end, the front part and the rear part of the sliding block 12 are respectively provided with an elastic wedge block 13, the front end and the rear end of the sliding block 12 are respectively provided with a third spring 14, the front part and the rear part of the middle inner cavity of the snow removing box 2 are respectively provided with a wedge-shaped stop block 15, the lower part of the snow removing box 2 is rotationally connected with a symmetrical brush wheel 16, the outer side of the brush wheel 16 is provided with teeth matched with a driving gear 18, the inner side of the brush wheel is provided with brush hair, when the driving gear 18 drives the brush wheel 16 to rotate through the teeth, the brush wheel 16 can fully remove snow scraps on the surface of a cable by the brush hair at the inner side, the lower part of the snow removing box 2 is fixedly provided with a driving device 17, the front part and the rear part of the driving device 17 are respectively provided with the driving gear 18 extending to the brush wheel 16, the front part and the rear part of the snow removing box 2 are respectively provided with a sliding shovel 19, the front part, and when the elastic wedge block 13 retracts into the inner cavity of the sliding block 12 under the action of the wedge-shaped stop block 15, the contact piece is shielded, and secondary contact with the contact piece is avoided when the elastic wedge block 13 returns.

The working principle is as follows: the snow accumulation preventing device for the power cable is characterized in that a sliding rail 1 is arranged between power towers, a side wall of a snow removing box 2 and a vibrating plate 4 are arranged to be at a certain inclination angle, snow is not easy to adhere to, when snow falls greatly, the snow is gradually accumulated on the side wall of the snow removing box 2 and the vibrating plate 4 to a certain degree, the vibrating plate 4 can press a second spring 5 due to pressure to enable the vibrating plate to move, the snow on the upper portion of the vibrating plate collides with the snow on the lower portion to cause looseness, correspondingly slides off, and the energy changes when the vibrating plate 4 returns to impact a first spring 3, then the energy is continuously transmitted among each other, the vibrating plate 4 continuously moves up and down to shake off the snow above, the snow continuously accumulates on a movable plate 7 during the process, the movable plate 7 bears the pressure of the snow on the cable with the same unit area, and the movable plate 7 is pressed to fall to a, and the spring brace 10 is pressed down to drive the guide rod 11 to contact with the metal sheet, a circuit is switched on, the snow removing box 2 is started to move along the slide rail 1 to remove snow, the symmetrical brush wheel 16 and the sliding shovel 19 are arranged at the lower part of the snow removing box 2, when the snow removing box 2 moves forwards or backwards along the slide rail 1, the sliding shovel 19 in the corresponding direction firstly removes most of the accumulated snow, then the brush wheel 16 is driven by the driving device 17 to rotate to remove the residual snow on the cable and ensure the cleanness of the cable, when the snow removing box 2 moves to the end along the slide rail 1, the connecting rod 20 in the corresponding direction extends into the inner cavity of the snow removing box 2 along the through hole on the snow removing box 2, and the bulge on the connecting rod 20 pushes the slide block 12 to move by using the elastic wedge block 13 on the corresponding side, so that the slide block 12 drives the corresponding elastic wedge block 13 to contact with the contact piece, the electromagnet 9 is started to repel the magnet piece 8, the magnet piece 8 then makes the movable plate 7 bounce, pour the accumulated snow thereon, make the guide rod 11 no longer communicate with the metal sheet, the snow removing box 2 then stop motion, the synchronous connecting rod 20 drives the projection thereon to just extend into the contact piece, the corresponding elastic wedge 13 is acted by the projection and the wedge-shaped stopper 15, drive the slide block 12 to reset under the action of the third spring 14, and then cooperate to set up the slide way on one side of the inner cavity of the snow storehouse 6, make the movable plate 7 move along the slide way, pour the accumulated snow thereon laterally, fall onto the side wall of the snow removing box 2 and the vibrating plate 4, finally laterally discharge, namely will not cause the pollution to the cable in the front-back direction, in addition, through setting the snow removing box 2 on the slide rail 1, make it move freely in the front-back direction, and the snow removing box 2 is small in volume, convenient maintenance, and low in manufacturing cost, thereby achieving the purposes of avoiding self accumulation, and automatically starting snow removal according to the, The cable is prevented from being damaged by snow freezing, the brake is stopped in time after one wheel of snow is cleared, the snow is prevented from being discharged onto the cable, and the practicability is high.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be used for power cable to prevent snow device, includes slide rail (1), its characterized in that: a snow removing box (2) is connected above the sliding rail (1) in a sliding manner, a first spring (3) is arranged in a side wall inner cavity of the snow removing box (2), a vibration plate (4) is connected on a side wall of the snow removing box (2) in a sliding manner, a second spring (5) is fixedly connected between the vibration plate (4) and the side wall of the snow removing box (2), a snow accumulating bin (6) is arranged at the upper part of the snow removing box (2), a movable plate (7) is connected on the inner cavity of the snow accumulating bin (6) in a sliding manner, a magnet sheet (8) is arranged at the lower end of the movable plate (7), an electromagnet (9) is fixedly arranged at the lower wall of the inner cavity of the snow accumulating bin (6), symmetrical spring support rods (10) are arranged at the lower part of the snow accumulating bin (6), a guide rod (11) is arranged between the spring support rods (10), and a, the front portion and the rear portion of slider (12) all are provided with elasticity voussoir (13), the front end and the rear end of slider (12) are provided with third spring (14), the middle part inner chamber front portion and the rear portion of snow removing case (2) all are provided with wedge dog (15), the lower part swivelling joint of snow removing case (2) has symmetrical brush wheel (16), the lower part fixed mounting of snow removing case (2) has drive arrangement (17), the front portion and the rear portion of drive arrangement (17) all are provided with drive gear (18) that extend to on brush wheel (16), the front portion and the rear portion of snow removing case (2) all are provided with smooth shovel (19), the front portion and the rear portion of slide rail (1) all are provided with connecting rod (20).

2. A snow protection device for power cables according to claim 1, characterized in that: the side surface of the snow removing box (2) is provided with an inclined slope surface with a certain angle.

3. A snow protection device for power cables according to claim 1, characterized in that: the upper part of the snow removing box (2) is provided with a metal sheet matched with the guide rod (11).

4. A snow protection device for power cables according to claim 1, characterized in that: through holes are formed in the front and the rear of the middle of the snow removing box (2).

5. A snow protection device for power cables according to claim 1, characterized in that: and a contact piece matched with the elastic wedge block (13) is arranged in the middle inner cavity of the snow removing box (2).

6. A snow protection device for power cables according to claim 1, characterized in that: and symmetrical slideways are arranged on the left side of the inner cavity of the snow accumulation bin (6).

7. A snow protection device for power cables according to claim 1, characterized in that: teeth matched with the driving gear (18) are arranged on the outer side of the brush wheel (16), and bristles are arranged on the inner side of the brush wheel.

8. A snow protection device for power cables according to claim 1, characterized in that: the upper part of the connecting rod (20) is provided with a bulge matched with the elastic wedge block (13).