CN113622735A - High-voltage power transmission inclined iron tower - Google Patents
High-voltage power transmission inclined iron tower Download PDFInfo
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- CN113622735A CN113622735A CN202110794794.3A CN202110794794A CN113622735A CN 113622735 A CN113622735 A CN 113622735A CN 202110794794 A CN202110794794 A CN 202110794794A CN 113622735 A CN113622735 A CN 113622735A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/06—Scaring or repelling devices, e.g. bird-scaring apparatus using visual means, e.g. scarecrows, moving elements, specific shapes, patterns or the like
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
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Abstract
The invention relates to the technical field of power transmission equipment, in particular to an inclined tower for high-voltage power transmission, which comprises a tower body and a plurality of cross arms symmetrically arranged on the tower body, wherein one ends of the cross arms are fixedly provided with connecting mechanisms; the connecting mechanism comprises a fixed hardware fitting, a protection mechanism, an insulator, a limiting mechanism and a winding mechanism; the connecting mechanism is fixedly arranged at one end of the cross arm through a fixing hardware fitting, and the lower end of the fixing hardware fitting is fixedly connected with the insulator; and a winding mechanism is fixedly arranged on the outer circular surface of the lower end cylinder of the insulator. According to the invention, the winding mechanism is arranged, so that the wire can be supported by the ejector plate to be separated from the roller, and the wire is pushed and fixed by matching with the limiting groove formed in the ejector plate and the gravity of the wire, so that the wire is not easy to slide under the external force such as shrinkage stress caused by wind power and temperature, the tightness adjusting effect of wire laying is ensured, and the condition of over-looseness in the wire laying process is avoided.
Description
Technical Field
The invention relates to the technical field of power transmission equipment, in particular to a high-voltage power transmission inclined iron tower.
Background
The power transmission tower is a supporting point of an overhead line, a single-loop power transmission tower is erected on the power transmission tower, two loops are erected on the power transmission tower, and the single loop is a loop with a power supply for load; the double-circuit is a circuit with 2 power supply sources loaded, and generally, important substations in enterprises or regions with high requirements on power supply reliability all adopt double-circuit power supply, so that one power supply can be protected from power failure due to reasons, the other power supply can continue to supply power, but medium and small users with low requirements on power supply reliability often adopt single power supply to supply power.
The insulator is an important connecting piece for connecting the tower body of the power transmission tower and a power transmission line, is an important component of the power transmission tower, plays an important role in an overhead power transmission line, is used for increasing the creepage distance and is usually made of glass or ceramic.
Chinese patent discloses a ceramic insulator of high tension transmission with convenient winding installation, and patent application number is CN202010925635.8, a convenient lubricated foamed plastic guillootine of high tension transmission italic iron tower, including the insulator, the one end fixedly connected with support column of insulator, the winding has the electric wire on the support column, one side of electric wire is provided with discoid control panel, the opposite side of electric wire is provided with the bottom plate of disc form, the support column runs through the middle part of control panel, support column one end tip and bottom plate fixed connection are provided with the interception post of two symmetric distributions on the control panel.
Although above-mentioned contrast patent has satisfied the electric wire and has twined on the support column fast, or the purpose of taking off from the support column, and realized in the laying work of electric wire, do not need direct separation insulator and electric wire, the electric wire elasticity removal adjustment that just can accomplish, but in the in-service use in-process, the back is accomplished in the electric wire elasticity adjustment, because prior art's electric wire is direct winding on the support column of insulator, and the support column surface of insulator is smooth, under the exogenic action such as shrink stress that wind-force and temperature caused, the electric wire can produce the slip on the support column surface of reason, make the elasticity regulation effect variation that the electric wire was laid, and then make the electric wire lay the condition that too lax appears in-process, influence the subsequent maintenance of electric wire and use.
Therefore, the high-voltage power transmission inclined iron tower is provided.
Disclosure of Invention
The invention aims to provide a high-voltage power transmission inclined iron tower to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-voltage power transmission inclined iron tower comprises a tower body and a plurality of cross arms which are symmetrically arranged on the tower body, wherein one ends of the cross arms are fixedly provided with connecting mechanisms;
the connecting mechanism comprises a fixed hardware fitting, a protection mechanism, an insulator, a limiting mechanism and a winding mechanism; the connecting mechanism is fixedly arranged at one end of the cross arm through a fixing hardware fitting, and the lower end of the fixing hardware fitting is fixedly connected with the insulator; a winding mechanism is fixedly arranged on the outer circular surface of the lower end cylinder of the insulator; two limiting mechanisms are symmetrically arranged on the edge of the lower surface of the umbrella skirt at the lowermost end of the insulator;
the winding mechanism comprises a barrel, a movable groove, a clamping ball, a first clamping groove, a second clamping groove, a jacking plate, a limiting groove, a first spring and a roller; a plurality of first springs are uniformly arranged at the peripheral position of the lower end cylinder of the insulator in an annular shape, a cylinder body is fixedly arranged at the upper end of each first spring, and the cylinder body is connected to the outer circular surface of the lower end cylinder of the insulator in a sleeved mode; two movable grooves are symmetrically formed in the outer circumferential surface of the cylinder body; the outer circular surface of the cylinder body is symmetrically and uniformly provided with a plurality of rollers about the two movable grooves, and the rollers are used for reducing the friction force of the connecting position of the electric wire and the lower end cylinder of the insulator; the outer circular surface of the lower end cylinder of the insulator is symmetrically provided with two first clamping grooves corresponding to the middle positions of the two movable grooves, the outer circular surface of the lower end cylinder of the insulator is symmetrically provided with two second clamping grooves corresponding to the lower end positions of the movable grooves, and the vertical distance between each second clamping groove and each first clamping groove is smaller than the maximum vertical deformation of the first spring; clamping balls are clamped and connected in the first clamping grooves, and one ends of the clamping balls penetrate through the movable grooves and are fixedly provided with ejector plates; and a plurality of limiting grooves are formed in the side surface of one end of the ejector plate in an embedded mode and used for limiting and fixing the power transmission line and preventing the power transmission line from sliding on the outer surface of the ejector plate.
Although the above-mentioned comparison patent satisfies the purpose that the electric wire is wound on the supporting column or taken off from the supporting column, and realizes the movement and adjustment of the tightness of the electric wire which can be completed without directly separating the insulator and the electric wire, in the actual use process, after the adjustment of the tightness of the electric wire is completed, because the electric wire in the prior art is directly wound on the supporting column of the insulator and the surface of the supporting column of the insulator is smooth, under the external force action of shrinkage stress and the like caused by wind power and temperature, the electric wire can slide on the surface of the supporting column of the insulator, so that the tightness adjusting effect of the electric wire laying is poor, and further, the over-loose condition occurs in the electric wire laying process, and the subsequent maintenance and use of the electric wire are affected, by arranging the winding mechanism, in the tightness adjusting process of the electric wire, the barrel is pressed downwards at first, the spring is pressed to deform, the ejection plate and the clamping ball are driven to move downwards after the barrel body is pressed downwards, the clamping ball enters the second clamping groove from the first clamping groove under the action of the winding pressure of the electric wire, the ejection plate shrinks into the movable groove after the clamping ball enters, the electric wire is contacted with the roller, the electric wire can be directly pulled to adjust the distribution tightness, the roller can reduce the friction force of the connecting position of the electric wire and the lower end cylinder of the insulator, the adjustment of the tightness is more labor-saving, after the adjustment is finished, the barrel body is pulled upwards to match the elastic acting force of the first spring, the ejection plate and the clamping ball move upwards, the clamping ball enters the first clamping groove, the ejection plate is ejected out of the movable groove, the electric wire is supported, the electric wire is separated from the roller, the electric wire is pushed and fixed by matching the limiting groove formed in the ejection plate and the gravity of the electric wire, according to the invention, the winding mechanism is arranged, the roller can be used for reducing the friction force of the connecting position of the electric wire and the lower end cylinder of the insulator, so that the tightness can be adjusted more easily, after the adjustment is finished, the electric wire can be supported by the ejector plate, so that the electric wire is separated from the roller, and the electric wire is pushed and fixed by matching with the limiting groove formed in the ejector plate and the gravity of the electric wire, so that compared with the prior art, the electric wire is not easy to slide under the external force action of shrinkage stress and the like caused by wind power and temperature, the tightness adjusting effect of laying the electric wire is ensured, the situation of over-loosening in the electric wire laying process is avoided, and the subsequent maintenance and use of the electric wire are facilitated.
Preferably, the limiting mechanism comprises an L-shaped elastic connecting piece, a torsion spring and a stop block; two L-shaped elastic connecting pieces are symmetrically arranged on the edge of the lower surface of the umbrella skirt at the lowermost end of the insulator, and torsion springs are fixedly connected to the turning positions of the inner surfaces of the L-shaped elastic connecting pieces; and two stop blocks are symmetrically and fixedly arranged at the lower end of the insulator close to the winding mechanism.
The limiting mechanism is arranged, the upper end of the L-shaped elastic connecting piece is fixedly connected with the lower surface of the umbrella skirt at the lowest end of the insulator, the lower end of the L-shaped elastic connecting piece is matched with the stop block to form a closed ring, the electric wire is limited, the electric wire is prevented from being separated from the insulator and the winding mechanism under the action of larger external force, and the normal work of the electric wire and the power transmission tower is ensured.
Preferably, the stop block comprises a block body and an L-shaped clamping groove; the block body is fixedly installed at a position, close to the winding mechanism, of the lower end of the insulator, and an L-shaped clamping groove is formed in the block body in a penetrating mode and used for limiting the L-shaped elastic connecting piece.
During operation, through setting up stop gear, L type elastic connecting piece cooperation dog, form the closed loop, it is spacing to the electric wire, prevent that it from breaking away from with insulator and winding mechanism under great exogenic action, but L type elastic connecting piece is relatively poor with the tight stability of support of dog, through seting up L type joint groove in the block is inside, after L type elastic connecting piece gets into L type joint groove, can be fine carry on spacingly to L type elastic connecting piece, prevent that it breaks away from the contact with the dog, stop gear's spacing fixed effect has further been guaranteed.
Preferably, the protection mechanism comprises a protection cover, a mounting plate, a sliding rod, a fixing plate, a second spring, a connecting rod and a sleeve; the fixed plate is fixedly arranged on the outer circular surface of the lower end cylinder of the insulator, and two connecting rods are symmetrically arranged at the edge position of the upper surface of the fixed plate through a hinge; the upper ends of the connecting rods are fixedly connected with sleeves through hinges, and sliding rods are connected inside the sleeves in a sleeved mode; one end of the sliding rod is fixedly connected with the protective cover, and the other end of the sliding rod is fixedly connected with the mounting plate; the mounting plate is connected to the outer circular surface of the lower end cylinder of the insulator in a sleeved mode; the upper end of the mounting plate is fixedly connected with the protective cover; the excircle face intermediate position fixed mounting of connecting rod has the second spring, the one end and the fixed plate upper surface fixed connection of second spring, and the value range of the coefficient of stiffness of second spring is 25N/M to 35N/M, 25N/M < K <35N/M promptly.
When the protective cover works, the insulator on the connecting mechanism is exposed in the air, birds can stay on the surface of the insulator, bird excrement falls on the surface of the insulator, which is equivalent to the phenomenon that the surface of the insulator is polluted, the bird excrement is dissolved in water and has high conductivity, pollution flashover caused by the bird excrement can possibly occur under the humid climatic condition, so that the insulator is damaged, the existing protective cover only can play a role of preventing the bird excrement from falling on the insulator, after long-time use, excessive excrement is accumulated on the surface of the protective cover, the protective cover can be corroded, the service life of the protective cover is shortened, by arranging the protective mechanism, when the birds fall on the protective cover, due to the gravity of the birds, the second spring is compressed and contracted, the stiffness coefficient range of the second spring is 25N/M to 35N/M, according to the stiffness coefficient calculation formula, can guarantee when birds weight is about 200 grams, the amplitude of second spring reaches 10 centimetres, and then the sleeve can slide to the outside on the slide bar, make the protection casing move down, play the effect of driving the bird, the bird flies away the back, under the elastic force effect of second spring, the protection casing shifts up, and then the functional diversity of protection casing has been improved, simultaneously owing to have certain effect of driving the bird, make the birds excrement accumulation speed on the protection casing slow down, the corruption to the protection casing has been delayed, and then the life of protection casing has been prolonged.
Preferably, the protective cover comprises a cover body, a high-molecular protective coating layer and a sealing mechanism; the cover body is connected to the outer circular surface of the lower end cylinder of the insulator in a sleeved mode; the upper surface of the cover body is provided with a high molecular protective coating layer for preventing the adhesion of bird excrement and other impurities; the range of the inclination angle of the inclined plane of the cover body is 30-60 degrees; and a sealing mechanism is arranged in the middle of the upper surface of the cover body.
When the bird repellent cover works, the cover body is corroded due to long-time accumulation of bird excrement, and the service life of the cover body is shortened.
Preferably, the sealing mechanism comprises a waterproof cloth and an elastic rubber ring; the middle position of the upper surface of the cover body is provided with waterproof cloth, and the middle position of the interior of the waterproof cloth is fixedly connected with an elastic rubber ring for sealing the connecting position of the cover body and the lower end cylinder of the insulator.
When the device works, the protective cover on the protective mechanism can move up and down under the action of the gravity of birds to play a role of driving birds, and further the protective cover and the cylinder part of the insulator cannot be fixedly connected, so that the covering tightness of the protective cover is poor.
Compared with the prior art, the invention has the beneficial effects that:
the invention can reduce the friction force of the connecting position of the electric wire and the lower end cylinder of the insulator by arranging the winding mechanism and utilizing the roller, so that the adjustment of the tightness is more labor-saving, after the adjustment is finished, the electric wire can be supported by utilizing the ejector plate, so that the electric wire is separated from the roller, the electric wire is pushed and fixed by matching with the limiting groove arranged on the ejector plate and the gravity of the electric wire, compared with the prior art, the electric wire is not easy to slide under the external force action of contraction stress and the like caused by wind power and temperature, the tightness adjusting effect of laying the electric wire is ensured, the over-loose condition in the laying process of the electric wire is avoided, the subsequent maintenance and use of the electric wire are facilitated, the upper end of the L-shaped elastic connecting piece is fixedly connected with the lower surface of the umbrella skirt at the lowest end of the insulator, the lower end is matched with the stop block to form a closed ring to limit the electric wire, the insulator and the winding mechanism are prevented from being separated from each other under the action of large external force, and the normal work of the electric wire and the power transmission tower is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a structural view of the coupling mechanism of the present invention;
FIG. 3 is a front cross-sectional structural view of the winding mechanism of the present invention;
FIG. 4 is a top view of the winding mechanism of the present invention;
FIG. 5 is a structural view of a spacing mechanism of the present invention;
FIG. 6 is a cross-sectional view of the stop of the present invention;
FIG. 7 is a structural view of the guard mechanism of the present invention;
FIG. 8 is a top structural view of the shield of the present invention;
fig. 9 is a structural view of the sealing mechanism of the present invention.
In the figure: 1. a tower body; 2. a cross arm; 3. a connecting mechanism; 4. fixing a hardware fitting; 5. a protection mechanism; 51. a protective cover; 511. a cover body; 512. a high molecular protective coating layer; 513. a sealing mechanism; 5131. waterproof cloth; 5132. an elastic rubber ring; 52. mounting a plate; 53. a slide bar; 54. a fixing plate; 55. a second spring; 56. a connecting rod; 57. a sleeve; 6. an insulator; 7. a limiting mechanism; 71. an L-shaped elastic connecting piece; 72. a torsion spring; 73. a stopper; 731. a block body; 732. an L-shaped clamping groove; 8. a winding mechanism; 81. a barrel; 82. a movable groove; 83. clamping the ball; 84. a first clamping groove; 85. a second clamping groove; 86. ejecting the plate; 87. a limiting groove; 88. a first spring; 89. and (3) a roller.
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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 9, the present invention provides a technical solution of an inclined iron tower for high voltage power transmission:
a high-voltage power transmission inclined iron tower is shown in figures 1 to 4 and comprises a tower body 1 and a plurality of cross arms 2 which are symmetrically distributed and installed on the tower body 1, wherein one ends of the cross arms 2 are fixedly provided with connecting mechanisms 3;
the connecting mechanism 3 comprises a fixed hardware fitting 4, a protection mechanism 5, an insulator 6, a limiting mechanism 7 and a winding mechanism 8; the connecting mechanism 3 is fixedly arranged at one end of the cross arm 2 through a fixing hardware fitting 4, and the lower end of the fixing hardware fitting 4 is fixedly connected with the insulator 6; a winding mechanism 8 is fixedly arranged on the outer circular surface of the lower end cylinder of the insulator 6; two limiting mechanisms 7 are symmetrically arranged on the edge of the lower surface of the umbrella skirt at the lowermost end of the insulator 6;
the winding mechanism 8 comprises a cylinder 81, a movable groove 82, a clamping ball 83, a first clamping groove 84, a second clamping groove 85, a jacking plate 86, a limiting groove 87, a first spring 88 and a roller 89; a plurality of first springs 88 are uniformly arranged at the periphery of the lower end cylinder of the insulator 6 in an annular shape, a cylinder 81 is fixedly arranged at the upper ends of the first springs 88, and the cylinder 81 is connected to the outer circular surface of the lower end cylinder of the insulator 6 in a sleeved mode; two movable grooves 82 are symmetrically formed in the outer circumferential surface of the cylinder 81; a plurality of rollers 89 are symmetrically and uniformly arranged on the outer circumferential surface of the cylinder 81 about the two movable grooves 82 and used for reducing the friction force between the electric wire and the connecting position of the lower end cylinder of the insulator 6; two first clamping grooves 84 are symmetrically formed in the outer circumferential surface of the lower end cylinder of the insulator 6 corresponding to the middle positions of the two movable grooves 82, two second clamping grooves 85 are symmetrically formed in the outer circumferential surface of the lower end cylinder of the insulator 6 corresponding to the lower end positions of the movable grooves 82, and the vertical distance between each second clamping groove 85 and each first clamping groove 84 is smaller than the maximum vertical deformation of the first spring 88; clamping balls 83 are clamped and connected in the first clamping grooves 84, and one ends of the clamping balls 83 penetrate through the movable grooves 82 and are fixedly provided with ejector plates 86; a plurality of limiting grooves 87 are formed in the side surface of one end of the ejector plate 86 in an embedded manner and used for limiting and fixing the power transmission line and preventing the power transmission line from sliding on the outer surface of the ejector plate 86.
Although the above-mentioned comparison patent satisfies the purpose that the electric wire is wound on the supporting column or taken off from the supporting column, and realizes the movement and adjustment of the tightness of the electric wire which can be completed without directly separating the insulator 6 and the electric wire, in the actual use process, after the tightness adjustment of the electric wire is completed, because the electric wire in the prior art is directly wound on the supporting column of the insulator 6 and the surface of the supporting column of the insulator 6 is smooth, under the external force action of shrinkage stress and the like caused by wind power and temperature, the electric wire can slide on the surface of the supporting column of the insulator 6, so that the tightness adjustment effect of the electric wire laying is poor, and further, the electric wire is too loose in the laying process, thereby influencing the subsequent maintenance and use of the electric wire, by arranging the winding mechanism 8, in the tightness adjustment process of the electric wire, firstly, the cylinder 81 is pressed downwards to enable the first spring 88 to be pressed to generate deformation, after the cylinder 81 is pressed downwards, the ejection plate 86 and the clamping ball 83 are driven to move downwards, under the action of the winding pressure of the electric wire, the clamping ball 83 enters the second clamping groove 85 from the first clamping groove 84, as the depth of the second clamping groove 85 relative to the first clamping groove 84 is larger, after the clamping ball 83 enters, the ejection plate 86 contracts into the movable groove 82 to enable the electric wire to be in contact with the roller 89, at the moment, the electric wire can be directly pulled to adjust the distribution tightness, the roller 89 can reduce the friction force of the connecting position of the electric wire and the lower end column body of the insulator 6, the adjustment of the tightness is more labor-saving, after the adjustment is finished, the cylinder 81 is pulled upwards to match the elastic acting force of the first spring 88 to enable the ejection plate 86 and the clamping ball 83 to move upwards, the clamping ball 83 enters the first clamping groove 84, and the ejection plate 86 is ejected from the movable groove 82, the electric wire is supported to be separated from the roller 89, the limit groove 87 arranged on the ejecting plate 86 is matched with the gravity of the electric wire to push and fix the electric wire, the friction force at the connecting position of the electric wire and the lower end column body of the insulator 6 can be reduced by the roller 89 through the arrangement of the winding mechanism 8, so that the tightness is more labor-saving to adjust, after adjusting the completion, can utilize knock-out plate 86 to support the electric wire, make the electric wire separate with cylinder 89, the spacing groove 87 that sets up on the cooperation knock-out plate 86 and the gravity of electric wire itself push away tightly fixedly to the electric wire, for prior art, make it be difficult for producing under exogenic action such as shrinkage stress that wind-force and temperature caused and slide, the elasticity regulation effect that the electric wire was laid has been guaranteed, avoid the electric wire to lay the condition that too lax appears in-process, be favorable to subsequent maintenance and the use of electric wire.
As an embodiment of the present invention, as shown in fig. 5, the limiting mechanism 7 includes an L-shaped elastic connecting member 71, a torsion spring 72, and a stopper 73; two L-shaped elastic connecting pieces 71 are symmetrically arranged on the edge of the lower surface of the umbrella skirt at the lowermost end of the insulator 6, and torsion springs 72 are fixedly connected to the turning positions of the inner surfaces of the L-shaped elastic connecting pieces 71; two stop blocks 73 are symmetrically and fixedly arranged at the lower end of the insulator 6 close to the winding mechanism 8; when the electric wire fixing device works, the electric wire can be preliminarily fixed through the arrangement of the winding mechanism 8, but under the action of strong external force such as wind, the electric wire can be separated from the insulator 6 and the winding mechanism 8, so that the normal work of the electric wire and the power transmission tower is influenced.
As an embodiment of the present invention, as shown in fig. 6, the stopper 73 includes a block 731 and an L-shaped engaging groove 732; the block body 731 is fixedly arranged at the position, close to the winding mechanism 8, of the lower end of the insulator 6, and an L-shaped clamping groove 732 is formed in the block body 731 in a penetrating mode and used for limiting the L-shaped elastic connecting piece 71; during operation, through setting up stop gear 7, L type elastic connecting piece 71 cooperation dog 73, form the closed loop, it is spacing to the electric wire, prevent that it breaks away from with insulator 6 and winding mechanism 8 under great exogenic action, but L type elastic connecting piece 71 is relatively poor with dog 73 support tight stability, through seting up L type joint groove 732 in block 731 inside, after L type elastic connecting piece 71 gets into L type joint groove 732, can be fine carry on spacingly to L type elastic connecting piece 71, prevent that it breaks away from the contact with dog 73, stop gear 7's spacing fixed effect has further been guaranteed.
As an embodiment of the present invention, as shown in fig. 7, the protection mechanism 5 includes a protection cover 51, a mounting plate 52, a slide rod 53, a fixing plate 54, a second spring 55, a connecting rod 56, and a sleeve 57; the fixing plate 54 is fixedly arranged on the outer circular surface of the lower end cylinder of the insulator 6, and two connecting rods 56 are symmetrically arranged at the edge position of the upper surface of the fixing plate 54 through a hinge; the upper ends of the connecting rods 56 are fixedly connected with sleeves 57 through hinges, and the sliding rods 53 are connected inside the sleeves 57 in a sleeved mode; one end of the sliding rod 53 is fixedly connected with the protective cover 51, and the other end of the sliding rod is fixedly connected with the mounting plate 52; the mounting plate 52 is connected to the outer circular surface of the lower end cylinder of the insulator 6 in a sleeved manner; the upper end of the mounting plate 52 is fixedly connected with the protective cover 51; a second spring 55 is fixedly installed in the middle of the outer circular surface of the connecting rod 56, one end of the second spring 55 is fixedly connected with the upper surface of the fixing plate 54, and the stiffness coefficient of the second spring 55 ranges from 25N/M to 35N/M, namely 25N/M < K < 35N/M; when the bird protective cover works, the insulator 6 on the connecting mechanism 3 is exposed in the air, birds can stay on the surface of the insulator 6, bird excrement falls on the surface of the insulator 6, namely the surface of the insulator 6 is polluted, the bird excrement is dissolved in water and has high conductivity, pollution flashover caused by the bird excrement can possibly occur under the humid climatic condition, the insulator 6 is damaged, the existing protective cover 51 only can play a role of preventing the bird excrement from falling on the insulator 6, after long-time use, excessive excrement is accumulated on the surface of the protective cover 51, the protective cover 51 can be corroded, the service life of the protective cover 51 is shortened, by arranging the protective mechanism 5, when birds fall on the protective cover 51, the stiffness of the birds can be compressed and contracted due to the gravity of the birds, the value range of the coefficient of the second spring 55 is 25N/M to 35N/M, according to the stiffness coefficient calculation formula, can guarantee when birds weight is about 200 grams, the amplitude of second spring 55 reaches 10 centimetres, and then sleeve 57 can slide to the outside on slide bar 53, make protection casing 51 move down, play the effect of driving the bird, the back is walked to the sparrow, under the spring action of second spring 55, protection casing 51 moves up, and then the functional diversity of protection casing 51 has been improved, simultaneously owing to have certain effect of driving the bird, make the birds excrement accumulation speed on the protection casing 51 slow down, the corruption to protection casing 51 has been delayed, and then the life of protection casing 51 has been prolonged.
As an embodiment of the present invention, as shown in fig. 8, the protective cover 51 includes a cover body 511, a polymer protective coating layer 512, and a sealing mechanism 513; the cover body 511 is connected to the outer circular surface of the lower end cylinder of the insulator 6 in a sleeved mode; the upper surface of the cover body 511 is provided with a high molecular protective coating layer 512 for preventing adhesion of bird excrement and other impurities; the inclined angle of the cover body 511 ranges from 30 degrees to 60 degrees; a sealing mechanism 513 is arranged in the middle of the upper surface of the cover body 511; when the bird repellent cover works, the cover body 511 is corroded due to long-time accumulation of bird excrement on the cover body 511, and the service life of the cover body 511 is shortened.
As an embodiment of the present invention, as shown in fig. 9, the sealing mechanism 513 includes a waterproof cloth 5131 and an elastic rubber ring 5132; a waterproof cloth 5131 is arranged in the middle of the upper surface of the cover body 511, and an elastic rubber ring 5132 is fixedly connected in the middle of the inner part of the waterproof cloth 5131 and used for sealing the connection position of the cover body 511 and the lower end cylinder of the insulator 6; during operation, the protective cover 51 on the protective mechanism 5 can move up and down under the action of the gravity of birds to play a role of repelling birds, and further the protective cover 51 cannot be fixedly connected with the cylinder part of the insulator 6, so that the covering tightness of the protective cover 51 is deteriorated.
The working principle is as follows: during the laying process of the electric wires on the power transmission inclined iron tower, the tightness of the electric wires needs to be adjusted, the barrel 81 is pressed downwards to enable the first spring 88 to be pressed to deform, after the barrel 81 is pressed downwards, the ejection plate 86 and the clamping ball 83 are driven to move downwards, under the action of the winding pressure of the electric wires, the clamping ball 83 enters the second clamping groove 85 from the first clamping groove 84, the second clamping groove 85 is deeper relative to the first clamping groove 84, after the clamping ball 83 enters, the ejection plate 86 contracts into the movable groove 82 to enable the electric wires to be in contact with the roller 89, at the moment, the electric wires can be pulled directly to adjust the laying tightness, the roller 89 can reduce the friction force between the electric wires and the connecting position of the lower end cylinder of the insulator 6, the tightness is adjusted more labor-saving, after the adjustment is finished, the barrel 81 is pulled upwards to be matched with the elastic acting force of the first spring 88, the ejection plate 86 and the clamping ball 83 are moved upwards, the clamping ball 83 enters the first clamping groove 84, the ejection plate 86 is ejected out of the movable groove 82, the electric wire is supported, the electric wire is separated from the roller 89, the limiting groove 87 formed in the ejection plate 86 is matched with the gravity of the electric wire to push and fix the electric wire, the upper end of the L-shaped elastic connecting piece 71 is fixedly connected with the lower surface of the umbrella skirt at the lowest end of the insulator 6 by arranging the limiting mechanism 7, the lower end of the L-shaped elastic connecting piece is matched with the stop block 73 to form a closed ring to limit the electric wire, the electric wire is prevented from being separated from the insulator 6 and the winding mechanism 8 under the action of larger external force, the normal work of the electric wire and the power transmission tower is ensured, the L-shaped elastic connecting piece 71 is matched with the stop block 73 to form the closed ring to limit the electric wire, and the electric wire is prevented from being separated from the insulator 6 and the winding mechanism 8 under the action of larger external force, but L type elastic connector 71 is relatively poor with dog 73 to tight stability, through seting up L type joint groove 732 in block 731 inside, after L type elastic connector 71 got into L type joint groove 732, can be fine carry on spacingly to L type elastic connector 71, prevent that it and dog 73 from breaking away from the contact, has further guaranteed stop gear 7's spacing fixed effect.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
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 (6)
1. The utility model provides a high tension transmission italic iron tower, includes that body of the tower (1) and a plurality of symmetric distribution install cross arm (2) on body of the tower (1), its characterized in that: one end of each of the cross arms (2) is fixedly provided with a connecting mechanism (3);
the connecting mechanism (3) comprises a fixed hardware fitting (4), a protection mechanism (5), an insulator (6), a limiting mechanism (7) and a winding mechanism (8); the connecting mechanism (3) is fixedly arranged at one end of the cross arm (2) through a fixing hardware fitting (4), and the lower end of the fixing hardware fitting (4) is fixedly connected with the insulator (6); a winding mechanism (8) is fixedly arranged on the outer circular surface of the lower end cylinder of the insulator (6); two limiting mechanisms (7) are symmetrically arranged on the edge of the lower surface of the umbrella skirt at the lowermost end of the insulator (6);
the winding mechanism (8) comprises a barrel (81), a movable groove (82), a clamping ball (83), a first clamping groove (84), a second clamping groove (85), an ejector plate (86), a limiting groove (87), a first spring (88) and a roller (89); a plurality of first springs (88) are uniformly arranged at the periphery of the lower end cylinder of the insulator (6) in an annular shape, a cylinder body (81) is fixedly arranged at the upper end of each first spring (88), and the cylinder body (81) is connected to the outer circular surface of the lower end cylinder of the insulator (6) in a sleeved mode; two movable grooves (82) are symmetrically formed in the outer circular surface of the cylinder body (81); a plurality of rollers (89) are symmetrically and uniformly arranged on the outer circular surface of the cylinder body (81) relative to the two movable grooves (82) and are used for reducing the friction force of the connecting position of the electric wire and the lower end cylinder of the insulator (6); two first clamping grooves (84) are symmetrically formed in the middle position, corresponding to the two movable grooves (82), of the outer circular surface of the cylinder at the lower end of the insulator (6), two second clamping grooves (85) are symmetrically formed in the middle position, corresponding to the lower end positions of the movable grooves (82), of the outer circular surface of the cylinder at the lower end of the insulator (6), and the vertical distance between each second clamping groove (85) and each first clamping groove (84) is smaller than the maximum vertical deformation amount of each first spring (88); clamping balls (83) are clamped and connected in the first clamping grooves (84), and one ends of the clamping balls (83) penetrate through the movable grooves (82) and are fixedly provided with ejector plates (86); a plurality of limiting grooves (87) are formed in the side surface of one end of the ejector plate (86) in an embedded mode and used for limiting and fixing the power transmission line and preventing the power transmission line from sliding on the outer surface of the ejector plate (86).
2. The oblique pylon according to claim 1, wherein: the limiting mechanism (7) comprises an L-shaped elastic connecting piece (71), a torsion spring (72) and a stop block (73); two L-shaped elastic connecting pieces (71) are symmetrically arranged on the edge of the lower surface of the umbrella skirt at the lowest end of the insulator (6), and torsion springs (72) are fixedly connected to the turning positions of the inner surfaces of the L-shaped elastic connecting pieces (71); and two stop blocks (73) are symmetrically and fixedly installed at the lower end of the insulator (6) close to the winding mechanism (8).
3. The oblique pylon according to claim 2, wherein: the block (73) comprises a block body (731) and an L-shaped clamping groove (732); block (731) fixed mounting is in the position that the lower extreme of insulator (6) is close to wire winding mechanism (8), and block (731) inside runs through and has seted up L type joint groove (732) for carry on spacingly to L type elastic connecting piece (71).
4. The oblique pylon according to claim 1, wherein: the protection mechanism (5) comprises a protection cover (51), a mounting plate (52), a sliding rod (53), a fixing plate (54), a second spring (55), a connecting rod (56) and a sleeve (57); the fixing plate (54) is fixedly arranged on the outer circular surface of the lower end cylinder of the insulator (6), and two connecting rods (56) are symmetrically arranged at the edge position of the upper surface of the fixing plate (54) through hinges; the upper ends of the connecting rods (56) are fixedly connected with sleeves (57) through hinges, and sliding rods (53) are connected inside the sleeves (57) in a sleeved mode; one end of the sliding rod (53) is fixedly connected with the protective cover (51), and the other end of the sliding rod is fixedly connected with the mounting plate (52); the mounting plate (52) is connected to the outer circular surface of the lower end cylinder of the insulator (6) in a sleeved mode; the upper end of the mounting plate (52) is fixedly connected with the protective cover (51); the outer disc intermediate position fixed mounting of connecting rod (56) has second spring (55), the one end and fixed plate (54) upper surface fixed connection of second spring (55), and the value range of the coefficient of stiffness of second spring (55) is 25N/M to 35N/M, 25N/M < K <35N/M promptly.
5. The oblique pylon according to claim 4, wherein: the protective cover (51) comprises a cover body (511), a high-molecular protective coating layer (512) and a sealing mechanism (513); the cover body (511) is connected to the outer circular surface of the lower end cylinder of the insulator (6) in a sleeved mode; the upper surface of the cover body (511) is provided with a high molecular protective coating layer (512) for preventing bird excrement and other impurities from being bonded; the inclined angle of the inclined plane of the cover body (511) ranges from 30 degrees to 60 degrees; and a sealing mechanism (513) is arranged in the middle of the upper surface of the cover body (511).
6. The oblique pylon according to claim 5, wherein: the sealing mechanism (513) comprises a waterproof cloth (5131) and an elastic rubber ring (5132); the middle position of the upper surface of the cover body (511) is provided with a waterproof cloth (5131), and the middle position in the interior of the waterproof cloth (5131) is fixedly connected with an elastic rubber ring (5132) for sealing the connection position of the cover body (511) and the lower end cylinder of the insulator (6).
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| CN202110794794.3A CN113622735B (en) | 2021-07-14 | 2021-07-14 | High-voltage power transmission inclined iron tower |
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| CN202110794794.3A CN113622735B (en) | 2021-07-14 | 2021-07-14 | High-voltage power transmission inclined iron tower |
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| CN113622735B CN113622735B (en) | 2022-11-08 |
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| CN112053814A (en) * | 2020-09-07 | 2020-12-08 | 孙水平 | Ceramic insulator convenient to wind and install for high-voltage power transmission |
| CN112562936A (en) * | 2020-12-18 | 2021-03-26 | 南阳金牛电气有限公司 | Lightning protection post insulator and manufacturing method thereof |
| KR102242052B1 (en) * | 2020-10-20 | 2021-04-16 | 김성수 | Wiring installation method |
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| KR101580277B1 (en) * | 2015-04-14 | 2015-12-24 | (주)와이앤제이이앤씨 | Assembly type electric pole for distribution line |
| CN205724768U (en) * | 2016-06-23 | 2016-11-23 | 国网新疆电力公司培训中心 | Insulator cover body bird-proof device |
| CN207264845U (en) * | 2017-10-17 | 2018-04-20 | 天津海能电力建设有限公司 | A kind of insulator arrangement for high-voltage power transmission tower |
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| CN113622735B (en) | 2022-11-08 |
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