CN109494621B - Power transmission line blocking device - Google Patents

Power transmission line blocking device Download PDF

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Publication number
CN109494621B
CN109494621B CN201811639779.6A CN201811639779A CN109494621B CN 109494621 B CN109494621 B CN 109494621B CN 201811639779 A CN201811639779 A CN 201811639779A CN 109494621 B CN109494621 B CN 109494621B
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China
Prior art keywords
net
sealing
transmission line
power transmission
supporting
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CN201811639779.6A
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CN109494621A (en
Inventor
窦旭
孙涛
吴自强
刘鸿杨
李艳朋
王楠
王阳
张壮壮
李博
许珂宁
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State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Hebei Power Transmission and Transformation Co Ltd
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State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Hebei Power Transmission and Transformation Co Ltd
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Priority to CN201811639779.6A priority Critical patent/CN109494621B/en
Publication of CN109494621A publication Critical patent/CN109494621A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

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Abstract

The invention provides a power transmission line net sealing device, which belongs to the technical field of power grid construction, and comprises two groups of supporting ropes which are erected on two groups of iron towers and are arranged in parallel, a net piece arranged on the two groups of supporting ropes, a first net sealing mechanism arranged on the iron tower and a second net sealing mechanism arranged on the inner side of the middle part of the iron tower, wherein the two groups of supporting ropes are respectively used for net sealing construction with long and short distances, can be combined for use, and are flexible to adjust and convenient to use. The power transmission line net sealing device provided by the invention has the advantages that the net sealing speed is high, the technical problems of low net sealing construction speed, incapability of adjusting the net sealing length and low construction progress are solved, a long and short distance net sealing mechanism can be reasonably selected according to field conditions, the net sealing length can be adjusted, and the construction speed and the construction progress of net sealing are improved.

Description

Power transmission line blocking device
Technical Field
The invention belongs to the technical field of power grid construction, and particularly relates to a power transmission line blocking device.
Background
The construction of high-voltage lines in China enters a rapid development stage, and the construction process of high-voltage transmission lines often encounters the situation of crossing important facilities, such as expressways, railways, residential houses and the like, and the construction of stringing and blocking the network needs to be carried out by crossing the important facilities.
The existing tension stringing crossing construction is to erect a power transmission line between two groups of iron towers with a certain distance, in order to not influence the safety of roads or personnel below the iron towers, all activities below the iron towers need to be stopped during construction, or the stringing construction is subjected to net sealing operation, a building below the stringing construction is isolated, the power failure below the iron towers can influence the life of residents, if the net sealing operation is adopted, although the operation can be carried out under the condition of power failure, the application range of the existing net sealing equipment is limited, if some bridges or residential residents are encountered, the length and the distance are not fixed, the net sealing equipment is used for net sealing, the length of the net sealing length can not be adjusted at will, the net sealing construction speed is slow, the influence on the net sealing construction can be caused, and the stringing construction progress is slow.
Disclosure of Invention
The invention aims to provide a power transmission line blocking device, which aims to solve the technical problems that the blocking construction speed is low, the blocking length cannot be adjusted and the construction progress is slow in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a transmission line block device, including building two sets of iron tower subaerial, set up two bundles of bearing ropes that arrange side by side on two sets of iron towers, the one end of bearing rope is fixed subaerial through the earth anchor, and the other end passes through the balancing weight to be fixed subaerial, transmission line block device still includes
The net piece is erected on the two bearing ropes, is a flexible body and can slide along the bearing ropes;
the first net sealing mechanism is used for long-distance net sealing and comprises an unfolding component arranged at the top of one group of iron towers and used for unfolding the net sheets and a fixing component arranged at the top of the other group of iron towers and used for fixing the net sheets;
the second net sealing mechanism is used for short-distance net sealing and comprises two groups of lifting assemblies and net sealing assemblies, wherein the two groups of lifting assemblies are arranged on the inner side of the iron tower respectively and are arranged oppositely;
the unfolding component comprises a driver arranged at the top of the iron tower, a first winding drum fixedly arranged on the inner side of the top of the iron tower, a plurality of hanging rings connected with the bearing ropes in a sliding fit manner and a traction rope wound on the first winding drum; one end of the traction rope is wound on the first winding drum, the other end of the traction rope is connected with a hanging ring close to the first winding drum, the position where the net piece is connected with the bearing rope is connected through the hanging ring, and the net piece is driven by the driver to rotate and unfold by the first winding drum and can slide on the bearing rope.
Further, the lifting assembly comprises a lifting rod for lifting the screen sealing assembly and a supporting rod for adjusting the supporting height of the lifting rod; one end of the lifting rod is hinged to the middle of the iron tower, and the other end of the lifting rod is suspended; one end of the supporting rod is hinged to the middle of the iron tower and is positioned above the hinged point of the lifting rod, and the other end of the supporting rod is hinged to the middle of the lifting rod; the supporting rods are used for adjusting the rotation angle by means of the supporting rods, and the screen sealing assembly is wound on the tops of the two supporting rods and unfolded by means of one of the supporting rods;
the net sealing assembly comprises a second winding drum and a net sealing belt wound on the second winding drum; the fixed end of the sealing net is connected with one of the lifting rods, the middle part of the sealing net is wound on the other lifting rod, and the second winding drum is arranged on the ground; the sealing net is unfolded by means of the driving of the lifting rod connected to the fixed end of the sealing net.
Further, the fixing assembly comprises a fixing plate arranged at the top of the iron tower and a fixing rope fixedly arranged on the fixing plate; the mesh is connected with the fixing plate through the fixing rope and used for fixing one end of the mesh.
Furthermore, the top of each iron tower is provided with a first roller, and the bearing rope is wound on the first rollers.
Further, two the top of holding in the palm the pole all is equipped with the second gyro wheel, the one end of screen cloth is fixed hold in the palm the top of pole, and the other end is around on the second gyro wheel.
Furthermore, a balancing weight is arranged on the second winding drum and used for enabling the two net sealing devices between the supporting and lifting rods to be horizontal.
Furthermore, the net piece is a net structure formed by a plurality of flexible net ropes which are connected in a cross mode, and the hanging rings are arranged at net nodes on two sides of the net piece.
Furthermore, the hanging ring is of an oval structure with a notch, and the net piece and the bearing rope can be hung on the hanging ring through the notch.
Furthermore, first reel passes through the support mounting on the iron tower, first reel is two and the symmetry sets up, is used for drawing the link that is located two bunches of bearing ropes and is close to first reel respectively.
Furthermore, the lifting rod and the supporting rod are both telescopic hydraulic oil cylinders, and the unfolding length of the lifting rod is greater than that of the supporting rod.
The power transmission line net sealing device provided by the invention has the beneficial effects that: compared with the prior art, the power transmission line blocking device can adopt two modes of blocking, firstly, the supporting rope is arranged between two iron towers and fixed, two sides of the net piece are sleeved on the supporting rope in a penetrating way, one end of the net piece is fixed on the fixing component, the first blocking mechanism is started, the unfolding component is started, the net piece is unfolded on the supporting rope, the second blocking mechanism is matched for use, the lifting component lifts the blocking and can play a role in blocking, in practical application, the first net sealing mechanism or the second net sealing mechanism can be reasonably selected and used according to the field condition, and can also be combined for use, so that the technical problems that the net sealing construction speed is low, the net sealing length cannot be adjusted and the construction progress is slow are solved, the net sealing mechanism with the long distance and the short distance can be reasonably selected according to the field condition, the net sealing length can be adjusted, and the construction speed and the construction progress of net sealing are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a power transmission line blocking device according to an embodiment of the present invention;
fig. 2 is a top view of a blocking device for a power transmission line provided in an embodiment of the present invention;
fig. 3 is a schematic diagram of a state in which a block of a second block mechanism of the power transmission line block device according to the embodiment of the present invention is deployed.
Wherein, in the figures, the respective reference numerals: 1-iron lap; 11-a first roller; 2-supporting ropes; 3-a ground anchor; 4-a balancing weight; 5-mesh sheet; 6-a first net sealing mechanism; 61-unfolding the component; 611-a driver; 612-a first reel; 613-hanging ring; 614-a hauling rope; 615-a stent; 62-a fixed component; 621-fixing plate; 622-fixed rope; 7-a second net sealing mechanism; 71-a lift assembly; 711-lifting rod; 712-a support bar; 72-a screen sealing assembly; 721-a second reel; 722-screen sealing; 73-second roller.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 3 together, a power transmission line blocking apparatus according to an embodiment of the present invention will now be described. The power transmission line blocking device comprises two groups of iron blocks 1 which are built on the ground, two groups of bearing ropes 2 which are arranged on two groups of iron towers 1 in parallel, wherein one end of each bearing rope 2 is fixed on the ground through a ground anchor 3, the other end of each bearing rope is fixed on the ground through a balancing weight 4, and the power transmission line blocking device further comprises
The net piece 5 is erected on the two bearing ropes 2, and the net piece 5 is a flexible body and can slide along the bearing ropes 2; the net piece 5 can be made of metal or nonmetal, and the net piece 5 is made of flexible nylon ropes, is flexible and can be coiled. The nylon rope is made of nylon materials, is high in flexibility and hardness, wear-resistant and corrosion-resistant, and is durable when being applied to a net sealing device.
The first net sealing mechanism 6 is used for long-distance net sealing and comprises an unfolding component 61 arranged at the top of one group of iron towers 1 and used for unfolding the net sheets 5 and a fixing component 62 arranged at the top of the other group of iron towers 1 and used for fixing the net sheets 5; adopt first block mechanism 6 to long distance block, fixed subassembly 62 is fixed with the one end of net piece 5, and the both sides of net piece 5 are worn and are drawn on bearing rope 2, through the drive of subassembly 61 is put in the exhibition, can make net piece 5 slide on bearing rope 2 to block length in a flexible way can be adjusted.
The second net sealing mechanism 7 is used for short-distance net sealing and comprises two groups of lifting assemblies 71 which are respectively arranged on the inner side of the iron tower 1 and are oppositely arranged, and a net sealing assembly 72 which is wound between the two groups of lifting assemblies 71 and is used for net sealing; adopt second block machine 7 to the block of short distance, lift subassembly 71 can lift block machine subassembly 72 and rise, can also make block machine subassembly 72's block machine's length change to the length of regulation block machine. The lifting and rotating of the lifting assembly 71 are flexible, the net sealing operation can be performed in a short time, and the construction progress is not delayed.
The unfolding component 61 comprises a driver 611 arranged at the top of the iron tower 1, a first winding drum 612 fixedly arranged at the inner side of the top of the iron tower 1, a plurality of hanging rings 613 connected with the supporting ropes 2 in a sliding fit manner, and a traction rope 614 wound on the first winding drum 612; one end of the pulling rope 614 is wound around the first reel 612, the other end is connected to a hanging ring 613 near the first reel 612, a portion of the mesh 5 connected to the supporting rope 2 is connected to the hanging ring 613, and the mesh 5 is driven by the driver 611 to rotate the first reel 612 and is unwound so as to be slidable on the supporting rope 2. The driver 611 is a servo motor, the driver 611 is in belt transmission connection with the first winding drum 612, the first winding drum 612 can be driven to rotate by the driver 611, the traction rope 614 is wound on the first winding drum 612, the end of the traction rope 614 pulls the hanging ring 613, and the hanging ring 613 is connected with the mesh 5, so that the mesh 5 is pulled in the rotating process of the first winding drum 612, and the mesh sealing effect is achieved.
Compared with the prior art, the power transmission line blocking device provided by the embodiment of the invention can select two modes of blocking, firstly the supporting rope 2 is arranged between two iron towers 1 and fixed, two sides of the net piece 5 are sleeved on the supporting rope 2 in a penetrating way, one end of the net piece 5 is fixed on the fixing component, the first blocking mechanism is started, the unfolding component 61 is started, the net piece 5 is unfolded on the supporting rope 2, the second blocking mechanism 7 is used in a matching way, the lifting component 71 lifts the blocking and can play a role of blocking, in practical application, the first blocking mechanism 6 or the second blocking mechanism 7 can be reasonably selected according to field conditions and can also be used in a combined way, the technical problems that the blocking construction speed is slow, the blocking length cannot be adjusted and the construction progress is slow are solved, the blocking mechanism with long and short distances can be reasonably selected according to the field conditions, the blocking length can be adjusted, the construction speed and the construction progress of the net sealing are improved.
The power transmission line blocking device provided by the embodiment of the invention is applied to stringing construction of a power transmission line, the blocking can be carried out on the power transmission line without power failure in the construction process, the first blocking mechanism 6 or the second blocking mechanism 7 can be reasonably selected according to the field condition of blocking operation and the blocking length and distance, if the blocking is carried out in a long distance, the first blocking mechanism 6 is selected, and if the blocking is carried out in a short distance, the second blocking mechanism 7 is selected, so that the blocking operation is simple and easy, the net 5 can be adjusted on the supporting rope 2 and is suitable for blocking in various distances, and the blocking component 72 on the second blocking mechanism 7 can be used for randomly adjusting the blocking distance on the lifting component 71 and is suitable for blocking operations in various different distances. The method has the advantages that the method does not occupy a long time, improves the construction progress, lightens the working strength of workers, can freely control the length of the net sealing, does not occupy redundant earth surface, and reduces the loss to users.
Referring to fig. 1 to fig. 3 together, as a specific implementation manner of the blocking device for the power transmission line provided by the embodiment of the present invention, the lifting assembly 71 includes a lifting rod 711 for lifting the blocking assembly 72 and a supporting rod 712 for adjusting a supporting height of the lifting rod 711; one end of the lifting rod 711 is hinged to the middle part of the iron tower 1, and the other end of the lifting rod is suspended; one end of the support rod 712 is hinged to the middle of the iron tower 1 and is located above the hinged point of the lifting rod 711, and the other end of the support rod 712 is hinged to the middle of the lifting rod 711; the supporting rods 711 are used for adjusting the rotation angle by means of the supporting rods 712, and the screen sealing component 72 is wound on the tops of the two supporting rods 711 and unfolded by means of one of the supporting rods 711;
the screen assembly 72 comprises a second reel 721 and a screen 722 wound on the second reel 721; the fixed end of the sealing net 722 is connected with one of the supporting rods 711, the middle part of the sealing net 722 is wound on the other supporting rod 711, and the second winding drum 721 is arranged on the ground; the cover 722 is unfolded by the driving of the lifting bar 711 attached to the fixed end of the cover 722. The supporting lifting rod 711 is hinged to the iron tower 1 and can rotate, the height of the supporting lifting rod 711 can be adjusted through rotation, the supporting lifting rod 711 can stretch out and draw back, the supporting rod 712 can stretch out and draw back, the height of the supporting sealing net 722 supported by the supporting lifting rod 711 can be adjusted at will, and the effect of flexibly adjusting the height of the sealing net 722 is achieved. The other function of holding in the palm the lifting rod 711 is to lift blocking net 722, makes two distance between the lifting rod 711 adjustable that hold in the palm, because the one end of blocking net 722 is fixed subaerial, when adjusting holding in the palm the lifting rod 711 to can prolong or shorten the length of blocking, adjust comparatively nimble, be used for the operation of blocking of short distance.
Referring to fig. 1 to fig. 3, as a specific implementation manner of the power transmission line blocking device according to the embodiment of the present invention, the fixing assembly 62 includes a fixing plate 621 disposed on the top of the iron tower 1 and a fixing rope 622 fixedly disposed on the fixing plate 621; the mesh 5 is connected to the fixing plate 621 by the fixing string 622, and is used to fix one end of the mesh 5. The fixed plate 621 is fixed on iron tower 1, can play the effect of fixed net piece 5, and the stiff end of net piece 5 passes through fixed rope 622 to be connected on fixed plate 621, can effectual fixed net piece 5 to the expansion end of net piece 5 can be reasonable expand or shrink, has improved the block speed of net piece 5, can grasp the length of block in a flexible way.
Referring to fig. 1 to 3 together, as a specific implementation manner of the power transmission line blocking device provided by the embodiment of the present invention, a first roller 11 is disposed at the top of each iron tower 1, and the supporting rope 2 is wound around the first roller 11. In order to facilitate the operation of the net sealing, the first idler wheel 11 is arranged on the iron tower 1, the bearing rope 2 can slide on the first idler wheel 11, the bearing rope 2 is prevented from being seriously rubbed, and meanwhile, the erection speed and the progress of the bearing rope 2 are improved.
Referring to fig. 1 to fig. 3, as a specific implementation manner of the blocking device for the power transmission line provided by the embodiment of the present invention, the top portions of the two supporting rods 711 are respectively provided with a second roller 73, one end of the blocking net 722 is fixed at the top end of the supporting rods 711, and the other end of the blocking net 722 is wound on the second roller 73. The support lifting rod 711 is a telescopic hydraulic oil cylinder, a second roller 73 is arranged at the top of the support lifting rod 711, the second roller 73 and the first roller 11 have the same effect and can rotate, the operation of the sealing net 722 is facilitated, the friction force between the sealing net 722 and the support lifting rod 711 is reduced, and the construction progress of the sealing net 722 is improved.
Referring to fig. 1 to fig. 3, as a specific implementation manner of the blocking device for the power transmission line provided by the embodiment of the present invention, a counterweight is disposed on the second winding drum 721, so that the blocking between the two supporting rods 711 is horizontal. The balancing weight makes second reel 721 not take place to remove, and for the weight of block, the weight of balancing weight is great, in the in-process of lifting the block at lifting rod 711, makes the block keep the horizontality all the time, plays the block, the effect of isolation building.
Referring to fig. 1 to 3 together, as a specific implementation manner of the power transmission line blocking device according to the embodiment of the present invention, the mesh 5 is a mesh structure formed by a plurality of flexible mesh ropes cross-connected to each other, the hanging rings 613 are disposed at mesh nodes on two sides of the mesh 5, a plurality of hanging rings 613 are disposed on two sides of the mesh 5, and the hanging rings 613 are directly hung on the mesh 5 to connect the supporting ropes 2 and slide on the supporting ropes 2, so as to unfold the mesh 5.
Referring to fig. 1 to fig. 3, as a specific implementation manner of the power transmission line blocking device according to the embodiment of the present invention, the hanging ring 613 is an oval structure with a notch, and both the net sheet 5 and the supporting rope 2 can be hung on the hanging ring 613 through the notch. The hanging ring 613 can be freely taken and placed on the bearing rope 2, can be detachably connected with the net piece 5, and is convenient to connect and simple to install and operate.
Referring to fig. 1 to fig. 3 together, as a specific implementation manner of the power transmission line blocking apparatus according to the embodiment of the present invention, the first reel 612 is installed on the iron tower 1 through a bracket 615, and the two first reels 612 are symmetrically arranged and are respectively used for towing the suspension loops 613 that are located on the two support ropes 2 and are close to the first reel 612. One driver 611 drives the two first winding drums 612 to rotate simultaneously, the first winding drums 612 are wound with the pulling ropes 614, and the net piece 5 can be pulled to move by pulling the pulling ropes 614, so that the net sealing effect is achieved.
Referring to fig. 1 to 3 together, as a specific implementation manner of the blocking device for the power transmission line provided by the embodiment of the present invention, the supporting rod 711 and the supporting rod 712 are both telescopic hydraulic cylinders, and the extended length of the supporting rod 711 is greater than the extended length of the supporting rod 712. The length that holds in the palm the pole 711 is greater than the length of bracing piece 712, can be through the length and the pivoted angle of adjusting the bracing piece 712 to the support height of holding in the palm the pole 711 is held in the palm in the regulation, so that the height of reasonable regulation block seal can be as required by the regional position of block seal, and reasonable judgement uses block seal mechanism, accomplishes to adjust in a flexible way, the quick effect of block seal.
The use process and the beneficial effects of the invention are as follows: during the use, at first the range size of the regional scope that needs to be covered by the overhead line of range estimation, when needing long distance block, adopt first block mechanism 6, when needing short distance block, adopt second block mechanism 7, accomplish reasonable judgement, reasonable adoption, two kinds of modes all can carry out the block to transmission line. When the first net sealing mechanism 6 is needed, the driver 611 is started, the driver 611 drives the first reel 612 to rotate, the traction rope 614 wound on the first reel 612 can pull the hanging ring 613 to slide on the supporting rope 2, and because the hanging ring 613 is connected with two sides of the net piece 5, the net piece 5 is unfolded or spread out in the process of rotating the first reel 612, so that the net sealing effect is achieved. When the second net sealing mechanism 7 is needed, one end of the net sealing 722 is hung on the top of one of the supporting rods 711, the middle part of the net sealing 722 is wound on the other supporting rod 711, the second winding drum 721 is positioned on the ground, the supporting rods 711 and the supporting rods 712 are started, the hinge angle between the two supporting rods 711 is adjusted in the process of ascending or rotating the supporting rods 711, and the distance between the two supporting rods 711 can be adjusted, so that the height of the net sealing 722 and the length of the net sealing 722 can be adjusted, because the second winding drum 721 is provided with the balancing weight, the position of the second winding drum 721 is not changed in the process of ascending or rotating or stretching the supporting rods 711, the net sealing 722 is always in a horizontal state, the net sealing speed is high, the effect is good, the net sealing construction progress of the power transmission line is improved, the net sealing mechanism with long and short distances can be reasonably selected according to the field situation, and the net sealing length can be adjusted, the technical effects of the construction speed and the construction progress of the net sealing are improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. Transmission line block device for the overhead line construction block of length distance, including the construction at subaerial two sets of iron tower, set up two bundles of bearing ropes that arrange side by side on two sets of iron towers, its characterized in that: one end of the supporting rope is fixed on the ground through the ground anchor, the other end of the supporting rope is fixed on the ground through the balancing weight, and the power transmission line net sealing device further comprises
The net piece is erected on the two bearing ropes, is a flexible body and can slide along the bearing ropes;
the first net sealing mechanism is used for long-distance net sealing and comprises an unfolding component arranged at the top of one group of iron towers and used for unfolding the net sheets and a fixing component arranged at the top of the other group of iron towers and used for fixing the net sheets;
the second net sealing mechanism is used for short-distance net sealing and comprises two groups of lifting assemblies and net sealing assemblies, wherein the two groups of lifting assemblies are arranged on the inner side of the iron tower respectively and are arranged oppositely;
the unfolding component comprises a driver arranged at the top of the iron tower, a first winding drum fixedly arranged on the inner side of the top of the iron tower, a plurality of hanging rings connected with the bearing ropes in a sliding fit manner and a traction rope wound on the first winding drum; one end of the traction rope is wound on the first winding drum, the other end of the traction rope is connected with a hanging ring close to the first winding drum, the part of the mesh sheet connected with the bearing rope is connected through the hanging ring, and the mesh sheet is driven by the driver to rotate and unfold the first winding drum and can slide on the bearing rope;
the lifting assembly comprises a lifting rod for lifting the screen sealing assembly and a supporting rod for adjusting the supporting height of the lifting rod; one end of the lifting rod is hinged to the middle of the iron tower, and the other end of the lifting rod is suspended; one end of the supporting rod is hinged to the middle of the iron tower and is positioned above the hinged point of the lifting rod, and the other end of the supporting rod is hinged to the middle of the lifting rod; the supporting rods are used for adjusting the rotation angle by means of the supporting rods, and the screen sealing assembly is wound on the tops of the two supporting rods and unfolded by means of one of the supporting rods;
the net sealing assembly comprises a second winding drum and a net sealing belt wound on the second winding drum; the fixed end of the sealing net is connected with one of the lifting rods, the middle part of the sealing net is wound on the other lifting rod, and the second winding drum is arranged on the ground; the sealing net is unfolded by means of the driving of the lifting rod connected to the fixed end of the sealing net.
2. The power transmission line blocking apparatus of claim 1, wherein: the fixing component comprises a fixing plate arranged at the top of the iron tower and a fixing rope fixedly arranged on the fixing plate; the mesh is connected with the fixing plate through the fixing rope and used for fixing one end of the mesh.
3. The power transmission line blocking apparatus of claim 1, wherein: and a first roller is arranged at the top of each iron tower, and the bearing rope is wound on the first roller.
4. The power transmission line blocking apparatus of claim 1, wherein: two the top of holding in the palm the pole all is equipped with the second gyro wheel, the one end of screen cloth is fixed hold in the palm the top of pole, the other end around on the second gyro wheel.
5. The power transmission line blocking apparatus of claim 1, wherein: and the second winding drum is provided with a balancing weight for enabling the two net seals between the supporting and lifting rods to be horizontal.
6. The power transmission line blocking apparatus of claim 1, wherein: the net piece is a net structure formed by a plurality of flexible net ropes which are connected in a cross mode, and the hanging rings are arranged at net nodes on two sides of the net piece.
7. The power transmission line blocking apparatus of claim 1, wherein: the hanging ring is of an oval structure with a notch, and the net piece and the bearing rope can be hung on the hanging ring through the notch.
8. The power transmission line blocking apparatus of claim 1, wherein: the first reel is arranged on the iron tower through a support, and the two first reels are symmetrically arranged and used for drawing hanging rings which are positioned on the two bearing ropes and are close to the first reel respectively.
9. The power transmission line blocking apparatus of claim 1, wherein: the lifting rod and the supporting rod are telescopic hydraulic oil cylinders; the expansion length of the supporting rod is greater than that of the supporting rod.
CN201811639779.6A 2018-12-29 2018-12-29 Power transmission line blocking device Active CN109494621B (en)

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CN109494621B true CN109494621B (en) 2020-05-15

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CN110492423A (en) * 2019-07-03 2019-11-22 翁琦 A kind of high-tension transmission line spanning block equipment
CN111130011B (en) * 2020-01-13 2020-11-24 三峡大学 Convenient net sealing device and net sealing method for overhead transmission line crossing construction
CN111181074A (en) * 2020-03-11 2020-05-19 广东电网有限责任公司 Live crossing rapid net sealing device and using method thereof
CN111431089B (en) * 2020-04-23 2021-09-21 国网湖南省电力有限公司 Electrified crossing construction net sealing method for power transmission line

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