CN111364915B - Power grid emergency repair ladder capable of being used on slope - Google Patents

Abstract

The invention discloses a power grid emergency repair ladder that can be used on a slope, comprising an electric control box for the ladder, a working cavity is arranged in the electric control box for the ladder, a fork assembly is arranged in the work cavity, and the fork is The assembly includes a ring-shaped annular chute fixed on the inner wall of the right side of the working chamber and a first through hole which is arranged on the inner wall of the left side of the working chamber and communicated with the outside world. Through the sliding of the fan-shaped slider on the annular chute, the front and rear landing support plates are separated; the toothed slider that can slide up and down is adopted. The relative level of the front and rear landing support plates realizes the balance adjustment of the emergency repair ladder. Through automatic adjustment, it can reduce the adjustment time of the grid emergency repair ladder on the slope, improve the efficiency of emergency repair, and also ensure the safety of electric workers during emergency repair operations. Safety.

Description

A power grid emergency repair ladder that can be used on slopes

technical field

The invention relates to the technical field of power grid emergency repair tools, in particular to a power grid emergency repair ladder that can be used on slopes.

Background technique

The whole composed of substations and transmission and distribution lines of various voltages in the power system is called the power network. It contains three units of substation, transmission and distribution. In daily use, due to weather, aging of components and other reasons, power grid failures often occur. In order to ensure the power needs of enterprises and ordinary households, electric workers often need to carry out emergency repair operations on the power grid, but ordinary power grid emergency repair elevators cannot Normal use on a slope requires extra personnel to help or put things under the ladder, which not only fails to ensure the efficiency of emergency repair operations, but also poses a certain safety hazard to electric workers.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a power grid emergency repair ladder that can be used on a slope, so as to overcome the above-mentioned defects in the prior art.

According to the present invention, a power grid emergency repair ladder that can be used on a slope includes an electric control box for the elevator, a working cavity is arranged in the electric control box for the elevator, a fork assembly is arranged in the work cavity, and the fork is The assembly includes a ring-shaped annular chute fixed on the inner wall of the right side of the working cavity, a first through hole set on the inner wall of the left side of the working cavity and communicated with the outside world, and is slidably connected to the annular chute in a front-to-back symmetrical manner. The upper fan-shaped slider, the ladder body casing fixed to the outside and fixedly connected to the fan-shaped slider through the first through hole, and the floor support plate fixed at the lower end of the ladder body casing and capable of contacting the ground , the top ends of the ladder body shells are hinged to each other, the working chamber is provided with a control assembly, and the control assembly includes a rotatable horizontal hinge rod arranged on the inner wall of the left side of the working chamber, and a front and rear relative to the horizontal hinge rod. Abutting sliders symmetrically slidably connected to the inner wall of the left side of the working chamber, a balance adjustment component is arranged in the ladder body shell, and the balance adjustment component includes an adjustment device provided in the ladder body shell and opened on the lower side A cavity and a toothed slider slidably connected to the inner wall of the right side of the adjustment cavity.

Preferably, five climbing rods are uniformly fixed on the ladder body shell from top to bottom.

Wherein, the fork assembly further includes a first transmission shaft rotatably connected to the left end of the sector-shaped sliding block, and a first transmission shaft that can be engaged with the toothed portion at the upper end of the annular chute is fixed on the first transmission shaft gear, a first pulley located on the left side of the first gear is fixed on the first transmission shaft on the front side, and a first pulley located on the upper side of the first transmission shaft is rotatably connected to the left end of the fan-shaped slider on the front side. Two transmission shafts, the second transmission shaft is fixed with a second gear meshed with the first gear on the rear side, and the second transmission shaft is fixed on the second gear on the left side of the second gear. Pulley, the inner wall of the rear side of the working chamber is rotatably connected with a third drive shaft located at the center of the annular chute, and a third pulley is fixed on the third drive shaft. A first belt is connected between the second pulleys, a second belt is connected between the third pulley and the first pulley, and the third transmission shaft is fixed on the third belt The first bevel gear on the right side of the wheel, the inner wall of the right side of the working chamber is slidably connected with a magnetic slider, and a fourth transmission shaft extending up and down is rotatably connected to the magnetic slider, which is located on the magnetic slider A second bevel gear that can be meshed and connected with the first bevel gear is fixed on the fourth transmission shaft on the side, and an electromagnet located on the lower side of the magnetic slider is fixed on the inner wall of the right side of the working chamber , a first spring is connected between the electromagnet and the magnetic slider.

Wherein, the control assembly further includes a horizontal bracket fixed on the inner wall of the right side of the working chamber, a motor is fixed on the inner wall of the lower side of the working chamber, and the horizontal bracket is rotatably connected with an up and down extension and is connected with the upper end of the motor On the fifth transmission shaft of the power connection, a third gear is fixed on the fifth transmission shaft located on the lower side of the horizontal support, and the tooth thickness of the third gear is relatively thick, and the lower end of the abutting slider is connected in rotation There is a sixth transmission shaft, a one-way bearing that can only perform one-way transmission is fixed on the sixth transmission shaft, and a fourth gear that can be meshed with the third gear is fixed on the outer ring of the one-way bearing. , a third bevel gear located on the upper side of the fourth gear is fixed on the sixth transmission shaft, and the inner walls of the left and right sides of the working chamber are symmetrically arranged on the lower side of the abutting slider and communicate with the outside world The lower end of the abutting slider is fixed with a fixing bracket located on the left side of the sixth transmission shaft, and a seventh transmission shaft extending left and right is rotatably connected to the fixing bracket, and the seventh transmission shaft The transmission shaft extends to the outside through the second through hole on the left side, and a fourth bevel gear meshingly connected to the third bevel gear is fixed on the seventh transmission shaft in the working chamber. A spring bracket is fixed at one end of the sliding block close to the symmetrical center, and a second spring is connected between the spring bracket and the horizontal bracket.

Wherein, the balance adjustment assembly further includes a fourth pulley that is arranged outside and is fixedly connected to the seventh drive shaft, and the ladder body shells on the front and rear sides are respectively provided with linkage chambers with opposite openings. An eighth transmission shaft is rotatably connected to the inner wall of the right side of the linkage cavity, a fifth pulley is fixed on the eighth transmission shaft, and a third belt is connected between the fifth pulley and the fourth pulley , the eighth transmission shaft is rotatably connected with an adjusting rod located on the left side of the fifth pulley, and the adjusting rod is in contact with the inner ring of the third belt, and the adjusting rod and the linkage cavity are far away from A third spring is connected to one end of the symmetrical center, a fifth bevel gear located on the right side of the fifth pulley is fixed on the eighth transmission shaft, and a ninth transmission shaft extending upward is rotatably connected to the lower end of the linkage cavity, A sixth bevel gear meshed with the fifth bevel gear is fixed on the ninth transmission shaft, and a seventh bevel gear located on the lower side of the sixth bevel gear is fixed on the ninth transmission shaft, A tenth transmission shaft located on the lower side of the eighth transmission shaft is rotatably connected to the inner wall of the right side of the linkage cavity, and an eighth bevel gear meshingly connected with the seventh bevel gear is fixed on the tenth transmission shaft. , a fifth gear is fixed on the tenth transmission shaft, which is located on the right side of the eighth bevel gear and is meshed with the toothed part of the toothed slider at one end away from the symmetrical center. A fourth spring is connected between the inner walls of the upper side of the adjustment cavity, a spring cavity is provided at one end of the toothed slider close to the symmetrical center and close to the upper side, the inner wall of the spring cavity is slidably connected with an inclined surface slider, and the inclined surface slider A fifth spring is connected between the right end of the spring cavity and the end of the spring cavity away from the symmetry center, a limit cavity located on the side close to the symmetry center relative to the adjustment cavity is arranged in the landing support plate, and the limit cavity is close to the symmetry center One end is slidably connected with a support slider extending rightward to the outside world, and thirty-four limit blocks are evenly fixed at one end of the support slider away from the symmetrical center, and the limit blocks can be connected with the inclined plane slider. Abut.

The beneficial effects of the present invention are as follows: the present invention adopts the front and rear symmetrical fan-shaped sliders, and through the sliding of the fan-shaped sliders on the annular chute, the fork of the front and rear landing support plates is realized; The sliding block realizes the balance adjustment of the emergency repair ladder through the downward sliding of the toothed slider with relatively low terrain and the relative leveling of the front and rear landing support plates. Through automatic adjustment, the adjustment time of the grid emergency repair ladder on the slope can be reduced. It improves the efficiency of emergency repair, and also ensures the safety of electric workers during emergency repair operations.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of a power grid emergency repair ladder that can be used on a slope according to the present invention;

Fig. 2 is the structural representation of the "A-A" direction of Fig. 1;

Fig. 3 is the structural representation of the "B-B" direction of Fig. 1;

Fig. 4 is a schematic enlarged view of the structure of "C" of Fig. 2;

Fig. 5 is the structural representation of " D-D " direction of Fig. 4;

Fig. 6 is a schematic enlarged view of the structure of "E" of Fig. 2;

Fig. 7 is a schematic enlarged view of the structure of "F" of Fig. 3;

Fig. 8 is a schematic enlarged view of the structure of "G" of Fig. 3;

Fig. 9 is the structural representation of the "H-H" direction of Fig. 7;

Fig. 10 is the structural representation of the "I-I" direction of Fig. 8;

FIG. 11 is a schematic enlarged view of the structure of “J” in FIG. 8 .

Detailed ways

The present invention will be described in detail below in conjunction with Figures 1-11. For the convenience of description, the orientations mentioned below are now specified as follows: the up-down, left-right, front-rear directions mentioned below are consistent with the up-down, left-right, front-rear directions of the projection relationship of Figure 1 itself.

1-11 , according to an embodiment of the present invention, a power grid emergency repair ladder that can be used on a slope includes an electric control box 11 for the elevator. The cavity 12 is provided with a fork assembly 901. The fork assembly 901 includes a ring-shaped annular chute 20 fixed on the inner wall of the right side of the working cavity 12, and a ring-shaped chute 20 disposed on the inner wall of the left side of the working cavity 12 and connected to the outside world. The first through hole 76 that communicates with each other, the sector-shaped slider 23 slidably connected to the annular chute 20 in a front-to-back symmetrical manner, and the ladder set in the outside world and fixedly connected to the sector-shaped slider 23 through the first through hole 76 . The body shell 16 and the floor support plate 18 fixed at the lower end of the ladder body shell 16 and capable of contacting the ground. The chute 20 is slid away from the center of symmetry to realize the fork of the floor support plate 18 . The working chamber 12 is provided with a control assembly 902 , and the control assembly 902 includes an inner wall on the left side of the working chamber 12 . And the rotatable horizontal hinge rod 13, relative to the horizontal hinge rod 13, is slidably connected to the abutment slider 50 on the left inner wall of the working chamber 12 in a front-to-back symmetrical manner. When the floor support plate 18 is placed on a slope, The up and down movement of the front and rear horizontal hinge rods 13 is controlled by the rotation of the horizontal hinge rods 13 . The ladder body housing 16 is provided with a balance adjustment assembly 903 , and the balance adjustment assembly 903 includes a The adjustment cavity 67 in the casing 16 and the lower side is open, and the toothed slider 63 slidably connected to the inner wall of the right side of the adjustment cavity 67 , and the toothed slider 63 moves downward, so that one side of the slider 63 falls to the ground. The total length of the support plate 18 is increased, so that the left and right floor support plates 18 are relatively balanced.

Beneficially, five climbing rods 17 are uniformly fixed on the ladder body shell 16 from top to bottom, and workers can climb by stepping on the climbing rods 17, and can increase the climbing rods 17 to increase the climbable height.

According to an embodiment, the fork assembly 901 will be described in detail below. The fork assembly 901 further includes a first transmission shaft 38 rotatably connected to the left end of the sector-shaped slider 23 , and the first transmission shaft 38 is fixed on the first transmission shaft 38 . The first gear 24 that can be engaged with the toothed portion at the upper end of the annular chute 20 is fixed on the first transmission shaft 38 on the front side with a first pulley 73 located on the left side of the first gear 24. A second transmission shaft 39 located on the upper side of the first transmission shaft 38 is rotatably connected to the left end of the sector slider 23 on the side, and the second transmission shaft 39 is fixedly engaged with the first gear 24 on the rear side. The second gear 22, the second drive shaft 39 is fixed with a second pulley 26 on the left side of the second gear 22, and the inner wall on the rear side of the working chamber 12 is rotatably connected to the annular chute 20 The third drive shaft 37 at the center of the circle, a third pulley 33 is fixed on the third drive shaft 37, and a first belt 36 is connected between the third pulley 33 and the second pulley 26 , a second belt 27 is connected between the third pulley 33 and the first pulley 73 , and a first cone located on the right side of the third pulley 33 is fixed on the third transmission shaft 37 Gear 34 , the inner wall of the right side of the working chamber 12 is slidably connected with a magnetic slider 31 , and a fourth transmission shaft 32 extending up and down is rotatably connected to the magnetic slider 31 , which is located on the upper side of the magnetic slider 31 The fourth transmission shaft 32 is fixed with a second bevel gear 35 that can be meshed with the first bevel gear 34 , and the inner wall of the right side of the working chamber 12 is fixed with a magnetic slider 31 . The electromagnet 28 on the side, the first spring 29 is connected between the electromagnet 28 and the slider 31 with magnetism, when the electromagnet 28 is electrified with magnetism, the slider 31 with magnetism moves downward , the magnetic slider 31 moving downwards drives the second bevel gear 35 to no longer engage with the first bevel gear 34 through the fourth transmission shaft 32, and the landing support plate 18 is not Fork again.

According to an embodiment, the control assembly 902 will be described in detail below. The control assembly 902 further includes a horizontal bracket 41 fixed on the inner wall of the right side of the working chamber 12, and a motor 43 is fixed on the inner wall of the lower side of the working chamber 12. The horizontal support 41 is rotatably connected with a fifth transmission shaft 25 that extends up and down and is powered with the upper end of the motor 43 , and a third gear is fixed on the fifth transmission shaft 25 located on the lower side of the horizontal support 41 . 42, and the tooth thickness of the third gear 42 is relatively thick, the lower end of the abutting slider 50 is rotatably connected with a sixth transmission shaft 49, and the sixth transmission shaft 49 is fixed with a single transmission shaft that can only perform one-way transmission. To the bearing 14, the outer ring of the one-way bearing 14 is fixed with a fourth gear 45 that can be engaged with the third gear 42, and the sixth transmission shaft 49 is fixed on the fourth gear 45 The third bevel gear 46 on the left and right sides of the working chamber 12 is symmetrically provided with a second through hole 48 located on the lower side of the abutting slider 50 and communicating with the outside world. The lower end of the abutting slider 50 A fixing bracket 47 located on the left side of the sixth transmission shaft 49 is fixed, and a seventh transmission shaft 51 extending left and right is rotatably connected to the fixing bracket 47 , and the seventh transmission shaft 51 passes through the left and right transmission shafts 51 . The two through holes 48 extend to the outside, and the seventh transmission shaft 51 in the working chamber 12 is fixed with a fourth bevel gear 44 meshingly connected with the third bevel gear 46 . The abutting slider A spring bracket 74 is fixed at one end of the 50 near the center of symmetry, and a second spring 40 is connected between the spring bracket 74 and the horizontal bracket 41. When the floor support plate 18 is located on a slope, the horizontal hinge rod 13 rotates and drives the abutting slider 50 on one side to move downward, and the abutting slider 50 that moves downward drives the fourth gear 45 and the third gear 42 to engage and connect through the sixth transmission shaft 49 . , and the thicker tooth thickness of the third gear 42 can ensure that the fourth gear 45 can be meshed with the third gear 42 on a slope with a large inclination, and the one-way bearing 14 It can be ensured that when the third gear 42 rotates in the reverse direction, the sixth transmission shaft 49 will not be driven.

According to an embodiment, the balance adjustment assembly 903 will be described in detail below. The balance adjustment assembly 903 further includes a fourth pulley 52 which is arranged outside and is fixedly connected to the seventh transmission shaft 51. The body shell 16 is respectively provided with a linkage cavity 59 with opposite openings in front and rear. The inner wall of the right side of the linkage cavity 59 is rotatably connected with an eighth transmission shaft 65, and a fifth pulley 56 is fixed on the eighth transmission shaft 65. A third belt 60 is connected between the fifth pulley 56 and the fourth pulley 52 , and an adjusting rod 58 located on the left side of the fifth pulley 56 is rotatably connected to the eighth transmission shaft 65 , and the adjusting rod 58 is in contact with the inner ring of the third belt 60, and a third spring 57 is connected to one end of the adjusting rod 58 and the linkage cavity 59 away from the symmetrical center, and the adjusting rod 58 can ensure the The third belt 60 always maintains a proper tension, the eighth transmission shaft 65 is fixed with a fifth bevel gear 53 located on the right side of the fifth pulley 56, and the lower end of the linkage cavity 59 is rotatably connected with an upward The extended ninth transmission shaft 54 is fixed on the ninth transmission shaft 54 with a sixth bevel gear 55 meshingly connected with the fifth bevel gear 53 . The seventh bevel gear 62 on the lower side of the sixth bevel gear 55 is rotatably connected to the inner wall on the right side of the linkage cavity 59 with a tenth transmission shaft 66 located on the lower side of the eighth transmission shaft 65. The tenth transmission shaft 66 An eighth bevel gear 64 meshingly connected with the seventh bevel gear 62 is fixed on the top, and the tenth transmission shaft 66 is fixed on the right side of the eighth bevel gear 64 and is connected with the toothed slider. 63 A fifth gear 61 with a toothed part at one end away from the center of symmetry is meshed and connected, a fourth spring 68 is connected between the toothed slider 63 and the upper inner wall of the adjustment cavity 67, and the toothed slider 63 is close to the symmetrical A spring cavity 69 is provided at one end of the center near the upper side, the inner wall of the spring cavity 69 is slidably connected with a sloped slider 71, and a fifth spring is connected between the right end of the sloped slider 71 and the end of the spring cavity 69 away from the center of symmetry 70. There is a limit cavity 72 located in the floor support plate 18 on the side close to the symmetrical center relative to the adjustment cavity 67, and one end of the limit cavity 72 close to the symmetrical center is slidably connected with a support slide extending to the right to the outside. Thirty-four limit blocks 75 are evenly fixed at one end of the support slider 15 away from the symmetrical center, and the limit blocks 75 can abut with the inclined surface slider 71 . When the toothed slider 63 slides down, the toothed slider 63 sliding downward drives the inclined slider 71 to slide down. When the inclined surface of the inclined slider 71 is in contact with the limit block 75 The limiting block 75 moves the inclined sliding block 71 to the side away from the center of symmetry. When the toothed sliding block 63 no longer moves downward, the upper end of the inclined sliding block 71 and the limiting block The lower end of 75 abuts, and the toothed slider 63 cannot move upward at this time.

In the initial state, the front and rear ladder body casings 16 are closed, the magnetic slider 31 is at the upper limit position, the first bevel gear 34 and the second bevel gear 35 are meshed and connected, the toothed slider 63 is at the upper limit position, and the inclined surface slides. The block 71 is located near the center of symmetry, the support slider 15 is located at the front limit position, the tension force of the third belt 60 is appropriate, the horizontal hinge rod 13 is in a horizontal state, and the third gear 42 is not meshed with the fourth gear 45 .

When the emergency repair ladder needs to be used for climbing, the motor 43 is started to rotate the fifth transmission shaft 25, the rotating fifth transmission shaft 25 drives the third gear 42 to rotate, and the rotating fifth transmission shaft 25 passes through the fourth transmission shaft 32 in turn. The second bevel gear 35 and the first bevel gear 34 drive the third drive shaft 37 to rotate, the rotating third drive shaft 37 drives the third pulley 33 to rotate, and the rotating third pulley 33 passes through the first belt 36, the first belt The second pulley 26 , the second transmission shaft 39 and the second gear 22 drive the rear first gear 24 to rotate, and the rotating rear first gear 24 passes the rear first transmission shaft 38 to make the rear sector slider 23 rotate along the annular The chute 20 slides to the rear side, and the rear fan-shaped slider 23 sliding to the rear side drives the rear side landing support plate 18 to rotate through the rear side ladder body shell 16, and the rotating third pulley 33 passes through the second belt 27, The first pulley 73 and the front first transmission shaft 38 make the front fan-shaped slider 23 slide to the front side along the annular chute 20 , and the front fan-shaped slider 23 sliding to the front side passes through the front ladder body casing 16 Drive the front side landing support plate 18 to rotate, realize the forked floor support plate 18, form a simple triangle, and increase the stability of the emergency repair ladder. The tension force of 60 increases, at this time, the adjusting rod 58 is driven to rotate, and the third spring 57 accumulates elastic potential energy. At this time, when the landing support plate 18 is spread out to an appropriate position, the electromagnet 28 is energized and has a magnetic property, which has a magnetic electromagnetic force. The iron 28 drives the magnetic slider 31 to move downward, the electromagnet 28 accumulates elastic potential energy, and the magnetic slider 31 moves downward through the fourth transmission shaft 32 to drive the second bevel gear 35 to no longer mesh with the first bevel gear 34. , at this time, the landing support plate 18 loses power and no longer spreads, and the worker can climb the repair ladder by stepping on the climbing rod 17;

When the floor support plate 18 is located on the slope, the horizontal hinge rod 13 rotates with the slope feature, and the relative downward side drives the corresponding abutment slider 50 to move downward, and the corresponding abutment slider 50 moves downward through the corresponding spring bracket 74 makes the corresponding second spring 40 accumulate elastic potential energy, the corresponding abutting slider 50 that moves downward drives the corresponding fourth gear 45 and the corresponding third gear 42 through the corresponding sixth transmission shaft 49 to engage and connect, and the corresponding third gear 42 that rotates The corresponding fourth gear 45 is driven to rotate. At this time, the rotation direction of the corresponding fourth gear 45 is connected with the transmission direction of the one-way bearing 14. Therefore, the corresponding rotating fourth gear 45 passes through the corresponding one-way bearing 14 and the corresponding sixth transmission shaft 49 in turn. The corresponding third bevel gear 46 and the corresponding fourth bevel gear 44 drive the corresponding seventh transmission shaft 51 to rotate, and the corresponding rotating seventh transmission shaft 51 passes through the corresponding third belt 60, the corresponding fifth pulley 56, and the corresponding eighth transmission in turn. The shaft 65 and the corresponding sixth bevel gear 55 drive the corresponding ninth transmission shaft 54 to rotate, and the rotating corresponding ninth transmission shaft 54 sequentially passes through the corresponding seventh bevel gear 62, the corresponding eighth bevel gear 64, the corresponding tenth transmission shaft 66, and the corresponding The fifth gear 61 drives the corresponding toothed slider 63 to move downward, and the corresponding fourth spring 68 accumulates elastic potential energy, thereby increasing the overall height of the corresponding landing support plate 18. During the downward sliding process of the corresponding toothed slider 63, When the corresponding toothed slider 63 slides downward, the corresponding toothed slider 63 sliding downward drives the corresponding inclined slider 71 to slide downward. When the inclined surface of the corresponding inclined slider 71 abuts against the corresponding limit block 75, the corresponding The limit block 75 moves the corresponding inclined surface slider 71 to the side away from the symmetrical center, and the corresponding fifth spring 70 accumulates elastic potential energy. The spring 70 releases the elastic potential energy and drives the corresponding inclined plane slider 71 to reset. As the overall height of the corresponding landing support plate 18 increases, the corresponding horizontal hinge rod 13 gradually returns to the horizontal state, and the corresponding second spring 40 releases the elastic potential energy and passes through the corresponding spring bracket. 74 drives the corresponding abutting slider 50 to move upward and reset. At this time, the corresponding abutting slider 50 that moves upward drives the corresponding fourth gear 45 through the corresponding sixth transmission shaft 49 to no longer engage with the corresponding third gear 42. At this time The corresponding toothed slider 63 loses power and no longer moves downward, and the upper end of the corresponding inclined surface slider 71 is in contact with the lower end of the last limit block 75. At this time, the corresponding toothed slider 63 cannot move upward, and the motor 43 is turned off to make the electromagnetic The iron 28 is powered off and loses its magnetism. At this time, the first spring 29 releases elastic potential energy to drive the magnetic slider 31 to move upward and reset. At this time, workers can climb the emergency repair ladder by stepping on the climbing rod 17 .

When the emergency repair operation is completed, the worker can start the motor 43 in the reverse direction. At this time, the fan-shaped slider 23 slides toward the center of symmetry, so that the ladder body shell 16 is closed. At this time, the corresponding tension force of the third belt 60 is reduced. The third spring 57 releases the elastic potential energy, and drives the corresponding adjusting rod 58 to rotate in the opposite direction and reset, so that the corresponding third belt 60 restores the appropriate tension. Abutting with the corresponding limit block 75, at this time, the corresponding fourth spring 68 releases the elastic potential energy, which drives the corresponding toothed slider 63 to move upward and reset. At the same time, under the action of the one-way bearing 14, even if the fourth gear 45 and The third gear 42 and the sixth transmission shaft 49 do not transmit, and the toothed slider 63 does not move downward. When the corresponding toothed slider 63 is reset, the worker pushes the corresponding support slider 15 back. At this time, the device Restore the original state.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (5)

1. The utility model provides a ladder is salvageed to electric wire netting that can use on slope, includes terraced electric control box, terraced electric control box is equipped with working chamber, its characterized in that:

a forking assembly is arranged in the working cavity and comprises an annular sliding chute which is fixedly arranged on the inner wall of the right side of the working cavity and is annular, a first through hole which is arranged on the inner wall of the left side of the working cavity and is communicated with the outside, fan-shaped sliding blocks which are symmetrically and slidably connected to the annular sliding chute in a front-back mode, a ladder body shell which is arranged on the outside and is fixedly connected with the fan-shaped sliding blocks through the first through hole, and a landing support plate which is fixedly arranged at the lower end of the ladder body shell and can be contacted with the ground, wherein the top ends of the ladder body shell are;

a control assembly is arranged in the working cavity, and comprises a horizontal hinge rod which is arranged on the inner wall of the left side of the working cavity and can rotate, and abutting sliding blocks which are symmetrically connected with the inner wall of the left side of the working cavity in a sliding manner in a front-back manner relative to the horizontal hinge rod;

the ladder body casing is internally provided with a balance adjustment assembly, the balance adjustment assembly comprises a toothed sliding block which is arranged in the ladder body casing, an adjustment cavity with an opening at the lower side and a sliding block which is connected with the inner wall at the right side of the adjustment cavity.

2. A power grid emergency repair ladder capable of being used on a slope according to claim 1, wherein: five climbing rods are uniformly and fixedly arranged on the ladder body shell from top to bottom.

3. A power grid emergency repair ladder capable of being used on a slope according to claim 1, wherein: the fork opening assembly further comprises a first transmission shaft which is rotatably connected to the left end of the sector sliding block, a first gear which can be meshed with the toothed part at the upper end of the annular sliding chute is fixedly arranged on the first transmission shaft at the front side, a first belt wheel positioned on the left side of the first gear is fixedly arranged on the first transmission shaft at the front side, a second transmission shaft positioned on the upper side of the first transmission shaft is rotatably connected to the left end of the sector sliding block at the front side, a second gear which is meshed with the first gear at the rear side is fixedly arranged on the second transmission shaft, a second belt wheel positioned on the left side of the second gear is fixedly arranged on the second transmission shaft, a third transmission shaft positioned at the circle center of the annular sliding chute is rotatably connected to the inner wall at the rear side of the working cavity, a third belt wheel is fixedly arranged on the third transmission shaft, a first belt is connected between the third belt wheel and the second belt wheel, and a second belt is connected between the third belt, the third transmission shaft is fixedly provided with a first bevel gear positioned on the right side of the third belt wheel, the inner wall of the right side of the working cavity is slidably connected with a magnetic slider, the magnetic slider is rotatably connected with a fourth transmission shaft extending up and down, the fourth transmission shaft positioned on the upper side of the magnetic slider is fixedly provided with a second bevel gear capable of being meshed with the first bevel gear, the inner wall of the right side of the working cavity is fixedly provided with an electromagnet positioned on the lower side of the magnetic slider, and a first spring is connected between the electromagnet and the magnetic slider.

4. A power grid emergency repair ladder capable of being used on a slope according to claim 1, wherein: the control assembly further comprises a horizontal support fixedly arranged on the inner wall of the right side of the working cavity, a motor is fixedly arranged on the inner wall of the lower side of the working cavity, a fifth transmission shaft which extends up and down and is in power connection with the upper end of the motor is rotatably connected onto the horizontal support, a third gear is fixedly arranged on the fifth transmission shaft positioned on the lower side of the horizontal support, the third gear is thick in tooth thickness, a sixth transmission shaft is rotatably connected onto the lower end of the abutting sliding block, an one-way bearing which can only perform one-way transmission is fixedly arranged on the sixth transmission shaft, a fourth gear which can be in meshed connection with the third gear is fixedly arranged on the outer ring of the one-way bearing, a third bevel gear positioned on the upper side of the fourth gear is fixedly arranged on the sixth transmission shaft, and second through holes which are positioned on the lower side of the abutting sliding block and are communicated with the outside are, the lower end of the abutting sliding block is fixedly provided with a fixed support positioned on the left side of the sixth transmission shaft, the fixed support is rotatably connected with a seventh transmission shaft extending leftwards and rightwards, the seventh transmission shaft extends to the outside through the second through hole on the left side, a fourth bevel gear meshed with the third bevel gear is fixedly arranged on the seventh transmission shaft positioned in the working cavity, a spring support is fixedly arranged at one end, close to the symmetrical center, of the abutting sliding block, and a second spring is connected between the spring support and the horizontal support.

5. A power grid emergency repair ladder capable of being used on a slope according to claim 4, wherein: the balance adjustment assembly further comprises a fourth belt wheel which is arranged outside and fixedly connected with the seventh transmission shaft, the ladder body shells on the front side and the rear side are respectively provided with linkage cavities with opposite openings in a front-back symmetrical manner, the inner wall of the right side of the linkage cavity is rotatably connected with an eighth transmission shaft, a fifth belt wheel is fixedly arranged on the eighth transmission shaft, a third belt is connected between the fifth belt wheel and the fourth belt wheel, an adjusting rod positioned on the left side of the fifth belt wheel is rotatably connected onto the eighth transmission shaft and is abutted against the inner ring of the third belt, a third spring is connected to one end of the adjusting rod and the linkage cavity far away from the symmetry center, a fifth bevel gear positioned on the right side of the fifth belt wheel is fixedly arranged on the eighth transmission shaft, a ninth transmission shaft extending upwards is rotatably connected to the lower end of the linkage cavity, and a sixth bevel gear meshed with the fifth bevel gear is fixedly arranged on the ninth transmission shaft, a seventh bevel gear positioned on the lower side of the sixth bevel gear is fixedly arranged on the ninth transmission shaft, a tenth transmission shaft positioned on the lower side of the eighth transmission shaft is rotatably connected to the inner wall of the right side of the linkage cavity, an eighth bevel gear in meshed connection with the seventh bevel gear is fixedly arranged on the tenth transmission shaft, a fifth gear which is positioned on the right side of the eighth bevel gear and in meshed connection with a toothed part at one end, away from the symmetry center, of the toothed slider is fixedly arranged on the tenth transmission shaft, a fourth spring is connected between the toothed slider and the inner wall of the upper side of the adjustment cavity, a spring cavity is arranged at one end, close to the symmetry center, of the toothed slider, an inclined slider is slidably connected to the inner wall of the spring cavity, a fifth spring is connected between the right end of the inclined slider and one end, away from the symmetry center, of the spring cavity, and a limit cavity positioned, spacing chamber is close to symmetric center one end sliding connection has the support slider that extends to the external world rightwards, just support slider keeps away from symmetric center one end and has set firmly thirty four stoppers uniformly, just the stopper can with inclined plane slider butt.

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