CN114512949A - Cable suspension fitting for overhead transmission line - Google Patents
Cable suspension fitting for overhead transmission line Download PDFInfo
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- CN114512949A CN114512949A CN202210237957.2A CN202210237957A CN114512949A CN 114512949 A CN114512949 A CN 114512949A CN 202210237957 A CN202210237957 A CN 202210237957A CN 114512949 A CN114512949 A CN 114512949A
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- 239000000725 suspension Substances 0.000 title claims abstract description 44
- 230000005540 biological transmission Effects 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims description 44
- 230000000694 effects Effects 0.000 description 13
- 239000010931 gold Substances 0.000 description 9
- 229910052737 gold Inorganic materials 0.000 description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000012212 insulator Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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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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- Suspension Of Electric Lines Or Cables (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a cable suspension fitting for an overhead transmission line, which comprises a lower clamping plate and a movable cover plate, wherein the lower part of the lower clamping plate is provided with a plurality of fixing screws, and the fixing screws are fixedly arranged on a cable bridge; be equipped with the arc recess that holds the cable on the lower plate, removable cover one end is articulated with the lower plate, and the other end passes through bolt detachably with the lower plate to be connected, the inside link that is equipped with of removable cover, and the link inboard is equipped with a plurality of punch plates, and the punch plate is the V-arrangement structure, and punch plate upper portion both ends are articulated with the link, and the opening part of punch plate is equipped with the arc recess that holds the cable, and link upper portion swing joint has a adjusting screw. According to the invention, the upper clamping plate is arranged in an inverted V-shaped structure, when the cable slides in the hardware fitting, the friction force between the cable and the upper clamping plate drives the upper clamping plate to rotate, one side of the upper clamping plate downwards pressurizes the cable, the sliding of the cable is avoided, and the stability of the connection between the cable and the suspension hardware fitting is ensured.
Description
Technical Field
The invention belongs to the technical field of cable erection hardware fittings, and particularly relates to a cable suspension hardware fitting for an overhead transmission line.
Background
Compared with underground transmission lines, the overhead transmission line has low construction cost, short construction period and easy maintenance, is a main transmission mode adopted since the development of the power industry, is generally called as the overhead transmission line, connects power stations, substations and load points in different areas through the overhead transmission line, transmits or exchanges electric energy to form power networks or power distribution networks with various voltage levels, and is erected on the ground by a line tower, a lead, an insulator, a line hardware fitting, a stay wire, a tower foundation, a grounding device and the like.
The existing power transmission line suspension generally has two modes, one mode is to use an insulator as a support of a cable to bind the cable on the insulator. The fixing mode has many defects and shortcomings, firstly, the binding process is complex, higher proficiency is needed, and high-altitude operation is inconvenient; moreover, vibration is generated between the cable and the binding wire in a strong wind area, and the binding wire is easy to loosen, so that the cable slides.
Another way is to fix the cable on the cable bridge by using a line fitting, for example, a fixing device for an electric wire pipeline disclosed in chinese patent application with publication No. CN114094525A, which discloses the following features: including fixed frame, fixed frame upper portion is provided with the fixed strip, the fixed frame middle part is provided with from top to bottom and is provided with fixed clamping part and activity clamping part respectively, fixed clamping part lower part is provided with two sets of circular arc type bearing parts one, activity clamping part upper portion is provided with circular arc bearing part two, circular arc bearing part one corresponds with circular arc bearing part two each other, activity clamping part lower part is provided with the check lock lever, the check lock lever runs through fixed frame's lower frame. Although the difficulty of cable suspension is reduced and the efficiency of cable suspension is improved, the cable still slides when swinging in a strong wind environment.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a cable suspension hardware fitting for an overhead transmission line, so as to solve the problem that the cable is easy to slide from the suspension hardware fitting due to the swinging of the cable in severe environments such as strong wind and the like, and ensure the stability of cable suspension.
In order to achieve the purpose, the invention adopts the technical scheme that:
a cable suspension fitting for an overhead transmission line comprises a lower clamping plate and a movable cover plate, wherein a plurality of fixing screws are arranged at the lower part of the lower clamping plate and fixedly arranged on a cable bridge; be equipped with the arc recess that holds the cable on the lower plate, removable cover one end is articulated with the lower plate, and the other end passes through bolt detachably with the lower plate to be connected, the inside link that is equipped with of removable cover, the link inboard is equipped with a plurality of punch holders, the punch holder is the V-arrangement structure, and punch holder upper portion both ends are articulated with the link, the opening part of punch holder is equipped with the arc recess that holds the cable, link upper portion swing joint has a adjusting screw, a adjusting screw upper end run through removable cover and with removable cover threaded connection.
As the further preferred of this technical scheme, the arc recess both ends of lower plate and the arc groove of punch holder all are equipped with the fillet, and the tip of punch holder and lower plate cuts the cable when having avoided the cable swing, the arc recess upper portion of lower plate and the arc recess lower part of punch holder all are equipped with anti-skidding rubber pad, have both avoided the cable to skid in hanging the gold utensil, have reduced the wearing and tearing of hanging the gold utensil to the cable when the cable rocks again.
As a further preferred option of the technical solution, a plurality of first mounting grooves are formed in the lower clamping plate, a first non-return mechanism is arranged in each first mounting groove, each first non-return mechanism comprises a supporting frame and a ram arranged in the supporting frame, V-shaped guide grooves are formed in two sides of the supporting frame, an arc-shaped groove matched with the arc-shaped groove of the lower clamping plate is formed in the upper portion of the ram, guide rods are arranged at two ends of the ram, the guide rods are slidably arranged in the V-shaped guide grooves, and in an initial state, the guide rods are located at the bottoms of the V-shaped guide grooves and protrude out of the arc-shaped grooves of the lower clamping plate; because the cable is clamped tightly by the upper clamping plate and the lower clamping plate, friction force exists between the cable and the ram, when the cable slides between the upper clamping plate and the lower clamping plate, the friction force between the cable and the ram drives the ram to slide leftwards or rightwards in the supporting frame, the guide rod simultaneously drives the ram to move upwards under the guiding action of the V-shaped guide groove, the friction force between the cable and the ram is increased, and therefore the sliding of the cable is avoided.
As a further preferred option of the technical scheme, a plurality of springs are arranged on both sides of the ram, the other ends of the springs abut against the inner wall of the supporting frame, and the springs ensure that the ram is located at the bottom of the V-shaped guide groove in the initial state, so that the non-return effect of the first non-return mechanism is ensured.
As a further preferred option of the technical scheme, the lower portion of the supporting frame is movably connected with a second adjusting screw, the lower end of the second adjusting screw penetrates through the first mounting groove and extends to the lower portion of the lower clamping plate, the second adjusting screw is in threaded connection with the lower clamping plate, and the second adjusting screw is convenient for adjusting the height of the first non-return mechanism, so that sufficient friction force is formed between the ram and the cable, the non-return effect of the first non-return mechanism is further ensured, and the cable non-return mechanism is suitable for cables with different diameters.
As a further preferred option of the technical scheme, the first backstop mechanism is arranged in the middle of the opening of the upper clamp plate, and when the cable slides, the ram of the first backstop mechanism moves upwards, so that the cable forms a wavy structure between the upper clamp plate and the ram, the backstop effect of the cable is further ensured, and the suspension stability of the cable is ensured.
As a further preferred option of the technical solution, extension plates are arranged at two ends of the lower clamp plate, a second non-return mechanism is arranged on the extension plates, the second non-return mechanism comprises a first rotary disc arranged at one side of the arc-shaped groove of the lower clamp plate and a second rotary disc arranged at the other side of the arc-shaped groove of the lower clamp plate, a cable is arranged between the first rotary disc and the second rotary disc, and in an initial state, side walls of the first rotary disc and the second rotary disc are both in contact with the cable; the lower parts of the first rotary table and the second rotary table are respectively provided with an eccentric shaft, the eccentric shafts are arranged on one side close to the cable, and the lower ends of the eccentric shafts are rotatably connected with the extension plate; the cable is provided with an anchor ear which is connected with the cable in a clamping way, two sides of the upper part of the anchor ear are hinged with connecting rods, the other end of each connecting rod is hinged with the first turntable or the second turntable, and the hinged point of each connecting rod is eccentrically arranged with the first turntable or the second turntable; when the cable slides in hanging the gold utensil and drive the staple bolt and move left or right, the staple bolt passes through the connecting rod and drives first carousel and second carousel and rotate around the eccentric shaft, because eccentric shaft and first carousel and second carousel eccentric arrangement, first carousel and second carousel form the cam structure this moment, when first carousel and second carousel eccentric rotation, the one end that first carousel and second carousel are close to the connecting rod pin joint is to cable one side deflection, thereby press from both sides the cable and press from both sides tightly, the secondary that has realized the cable and has hung is only contrary.
As a further preferred option of the technical solution, a second mounting groove is formed in the extension plate, a sliding block is slidably connected to the second mounting groove, a bearing is arranged on the sliding block, the lower end of the eccentric shaft is fixedly mounted in the inner ring of the bearing, a third adjusting screw is movably connected to one side of the sliding block, and one end of the third adjusting screw extends to the outside of the extension plate and is in threaded connection with the extension plate; the sliding block and the third adjusting screw are used for adjusting the distance between the first rotating disc and the second rotating disc, and the cable adjusting device is suitable for cables with different diameters.
As a further preferred aspect of the present technical solution, the side walls of the first rotating disk and the second rotating disk are both provided with a groove to increase the contact area between the first rotating disk and the cable and the second rotating disk, and the first rotating disk and the second rotating disk are arranged in a staggered manner; when the cable slides in the suspension fitting, the first rotating disc and the second rotating disc rotate in opposite directions, so that the cable forms a wave structure between the first rotating disc and the second rotating disc, and the wave structure formed by the cable between the first rotating disc and the second rotating disc is perpendicular to the wave structure formed by the cable between the upper clamping plate and the ram, so that the cable forms a spatial non-return structure, and the sliding of the cable is avoided as much as possible.
As a further preferred option of the technical solution, the connecting rod comprises a stud and connecting sleeves in threaded connection with both ends of the stud, the connecting sleeve at one end is hinged to the hoop, and the connecting sleeve at the other end is hinged to the first turntable or the second turntable; the double-end stud is convenient for adjusting the length of the connecting rods, and the included angle between the connecting rods at two sides is adjusted to be the maximum, so that the anti-reverse sensitivity of the second non-return mechanism is ensured.
The invention has the beneficial effects that:
1) according to the invention, the upper clamping plate is arranged in an inverted V-shaped structure, when the cable slides in the hardware fitting, the friction force between the cable and the upper clamping plate drives the upper clamping plate to rotate, one side of the upper clamping plate downwards pressurizes the cable, the sliding of the cable is avoided, and the stability of the connection between the cable and the suspension hardware fitting is ensured.
2) In order to avoid the damage of the cable by the suspended hardware fitting, the contact parts of the lower clamping plate and the upper clamping plate with the cable are respectively provided with a fillet, and the contact parts of the upper clamping plate and the lower clamping plate with the cable are respectively provided with anti-skidding rubber.
3) According to the invention, the lower clamping plate is internally provided with the plurality of first non-return mechanisms, the upper clamping plate and the lower clamping plate clamp the cable, friction force exists between the cable and the ram, when the cable slides between the upper clamping plate and the lower clamping plate, the friction force between the cable and the ram drives the ram to slide leftwards or rightwards in the supporting frame, the guide rod drives the ram to move upwards under the guiding action of the V-shaped guide groove, and the friction force between the cable and the ram is increased, so that the sliding of the cable is avoided.
4) In order to ensure the non-return effect of the first non-return mechanism, a plurality of springs are arranged on two sides of the ram, so that the ram is positioned at the bottom of the V-shaped guide groove in an initial state, and the ram can quickly respond to non-return when a cable slides.
5) The second adjusting screw is arranged at the lower part of the supporting frame of the first non-return mechanism and used for adjusting the height of the first non-return mechanism, so that sufficient friction force is formed between the ram and the cable, the non-return effect of the first non-return mechanism is further ensured, and the cable non-return mechanism is suitable for cables with different diameters.
6) The first check mechanism is arranged in the middle of the opening of the upper clamping plate, when the cable slides, the ram of the first check mechanism moves upwards, so that the cable forms a wavy structure between the upper clamping plate and the ram, the check effect of the cable is further guaranteed, and the suspension stability of the cable is guaranteed.
7) The both sides at the lower plate have set up the second and have only stopped the mechanism, drive the staple bolt when the cable slides in hanging the gold utensil and move left or right, the staple bolt passes through the connecting rod and drives first carousel and second carousel and rotate around the eccentric shaft, because eccentric shaft and first carousel and second carousel eccentric arrangement, first carousel and second carousel form the cam structure this moment, when first carousel and second carousel eccentric rotation, the one end that first carousel and second carousel are close to the connecting rod pin joint deflects to cable one side, thereby press from both sides the cable tight, the secondary that has realized the cable and has hung ends the contrary.
8) The second mounting groove is formed in the extension plate, the adjustable sliding block is arranged in the second mounting groove, the second non-return mechanism is mounted on the sliding block, the distance between the first rotary table and the second rotary table can be conveniently adjusted, and the cable mounting device is suitable for cables with different diameters.
9) The invention arranges the first rotary disc and the second rotary disc in a staggered way; when the cable slides in the suspension fitting, the first rotating disc and the second rotating disc rotate in opposite directions, so that the cable forms a wave structure between the first rotating disc and the second rotating disc, and the wave structure formed by the cable between the first rotating disc and the second rotating disc is perpendicular to the wave structure formed by the cable between the upper clamping plate and the ram, so that the cable forms a spatial non-return structure, and the sliding of the cable is avoided as much as possible.
10) The connecting rods are arranged into a length-adjustable structure, and the included angle between the connecting rods at two sides is adjusted to be maximum in the initial state, so that the anti-reverse sensitivity of the second non-return mechanism is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a cable suspension fitting for an overhead transmission line according to the invention.
Fig. 2 is a use state diagram of a cable suspension fitting for an overhead transmission line according to the invention.
Fig. 3 is a diagram of the opening state of a movable cover plate of a cable suspension fitting for an overhead transmission line.
Fig. 4 is a schematic structural diagram of a connecting frame in a cable suspension fitting for an overhead transmission line according to the present invention.
Fig. 5 is a schematic structural view of a lower clamping plate in the cable suspension fitting for the overhead transmission line.
Fig. 6 is a cross-sectional view of a lower clamp plate in a cable suspension fitting for an overhead transmission line according to the present invention.
Fig. 7 is a schematic structural diagram of a first backstop mechanism in a cable suspension fitting for an overhead transmission line.
Fig. 8 is a schematic structural diagram of a second backstop mechanism in the cable suspension fitting for the overhead transmission line.
Fig. 9 is a schematic diagram of a sliding block structure in a cable suspension fitting for an overhead transmission line according to the present invention.
In the figure: 1. a lower splint; 101. a first mounting groove; 102. a second mounting groove; 103. an extension plate; 104. fixing the screw rod; 2. a removable cover plate; 201. a connecting frame; 202. an upper splint; 203. a first adjusting screw; 3. a first backstop mechanism; 301. a ram; 302. a support frame; 303. a V-shaped guide groove; 304. a guide bar; 305. a spring; 306. a second adjusting screw; 4. a second backstop mechanism; 401. a first turntable; 402. a connecting rod; 4021. connecting sleeves; 4022. a stud; 403. an eccentric shaft; 404. hooping; 405. a second turntable; 406. a slider; 407. a bearing; 408. a third adjusting screw; 5. a cable; 6. a cable bridge.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings, 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 "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the devices or elements referred to must have a specific orientation, a specific orientation configuration and operation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1-4, a cable suspension fitting for an overhead transmission line includes a lower clamp plate 1 and a movable cover plate 2, wherein a plurality of fixing screws 104 are arranged at the lower part of the lower clamp plate 1, and the fixing screws 104 are fixedly installed on a cable bridge 6; be equipped with the arc recess that holds cable 5 on the lower plate 1, 2 one ends of removable cover are articulated with lower plate 1, and the other end passes through bolt detachably with lower plate 1 to be connected, 2 inside link 201 that are equipped with of removable cover, link 201 inboard is equipped with a plurality of punch holder 202, punch holder 202 is the V-arrangement structure, and punch holder 202 upper portion both ends are articulated with link 201, the opening part of punch holder 202 is equipped with the arc recess that holds cable 5, link 201 upper portion swing joint has a adjusting screw 203, and a adjusting screw 203 upper end runs through removable cover 2 and with 2 threaded connection of removable cover.
In this embodiment, the arc recess both ends of lower plate 1 and the arc groove of upper plate 202 all are equipped with the fillet, and upper plate 202 and lower plate 1's tip cuts cable 5 when having avoided the swing of cable 5, arc recess upper portion of lower plate 1 and the arc recess lower part of upper plate 202 all are equipped with anti-skidding rubber pad, have both avoided cable 5 to skid in hanging the gold utensil, have reduced the wearing and tearing of hanging the gold utensil to cable 5 when cable 5 rocks again.
As shown in fig. 5 to 7, in this embodiment, a plurality of first installation grooves 101 are formed in the lower clamp plate 1, a first backstop mechanism 3 is arranged in the first installation grooves 101, the first backstop mechanism 3 includes a support frame 302 and a ram 301 arranged in the support frame 302, V-shaped guide grooves 303 are arranged on two sides of the support frame 302, an arc-shaped groove matched with the arc-shaped groove of the lower clamp plate 1 is arranged on the upper portion of the ram 301, guide rods 304 are arranged at two ends of the ram 301, the guide rods 304 are slidably arranged in the V-shaped guide grooves 303, and in an initial state, the guide rods 304 are located at the bottom of the V-shaped guide grooves 303 and protrude out of the arc-shaped groove of the lower clamp plate 1; because the cable 5 is clamped by the upper clamping plate 202 and the lower clamping plate 1, friction force exists between the cable 5 and the ram 301, when the cable 5 slides between the upper clamping plate 202 and the lower clamping plate 1, the friction force between the cable 5 and the ram 301 drives the ram 301 to slide leftwards or rightwards in the supporting frame 302, the guide rod 304 drives the ram 301 to move upwards under the guiding action of the V-shaped guide groove 303, the friction force between the cable 5 and the ram 301 is increased, and therefore the sliding of the cable 5 is avoided.
As shown in fig. 7, in the present embodiment, a plurality of springs 305 are disposed on both sides of the ram 301, the other end of the spring 305 abuts against the inner wall of the supporting frame 302, and the spring 305 ensures that the ram 301 is located at the bottom of the V-shaped guide groove 303 in the initial state, thereby ensuring the backstop effect of the first backstop mechanism 3.
As shown in fig. 6, in the present embodiment, the lower portion of the supporting frame 302 is movably connected with a second adjusting screw 306, the lower end of the second adjusting screw 306 extends to the lower portion of the lower clamp plate 1 through the first mounting groove 101, and the second adjusting screw 306 is in threaded connection with the lower clamp plate 1, the second adjusting screw 306 is convenient for adjusting the height of the first non-return mechanism 3, so that sufficient friction force is formed between the ram 301 and the cable 5, and the non-return effect of the first non-return mechanism 3 is ensured, and the cable is suitable for cables 5 with different diameters.
As shown in fig. 3, in the present embodiment, the first backstop mechanism 3 is disposed in the middle of the opening of the upper clamp plate 202, and when the cable 5 slides, the ram 301 of the first backstop mechanism 3 moves upward, so that the cable 5 forms a wave-shaped structure between the upper clamp plate 202 and the ram 301, thereby further ensuring the backstop effect of the cable 5 and ensuring the suspension stability of the cable 5.
As shown in fig. 1 and 8, in this embodiment, two ends of the lower plate 1 are provided with extension plates 103, the extension plates 103 are provided with second backstop mechanisms 4, each second backstop mechanism 4 includes a first rotary disc 401 disposed on one side of the arc-shaped groove of the lower plate 1 and a second rotary disc 405 disposed on the other side of the arc-shaped groove of the lower plate 1, a cable 5 is disposed between the first rotary disc 401 and the second rotary disc 405, and in an initial state, the side walls of the first rotary disc 401 and the second rotary disc 405 are both in contact with the cable 5; the lower parts of the first turntable 401 and the second turntable 405 are respectively provided with an eccentric shaft 403, the eccentric shafts 403 are arranged on one side close to the cable 5, and the lower ends of the eccentric shafts 403 are rotatably connected with the extension plate 103; the cable 5 is provided with an anchor ear 404 which is connected with the cable 5 in a clamping way, two sides of the upper part of the anchor ear 404 are respectively hinged with a connecting rod 402, the other end of the connecting rod 402 is hinged with a first turntable 401 or a second turntable 405, and the hinged point is eccentrically arranged with the first turntable 401 or the second turntable 405; when the cable 5 slides in the suspension fitting, the hoop 404 is driven to move leftwards or rightwards, the hoop 404 drives the first rotating disc 401 and the second rotating disc 405 to rotate around the eccentric shaft 403 through the connecting rod 402, the eccentric shaft 403 is eccentrically arranged with the first rotating disc 401 and the second rotating disc 405, at the moment, the first rotating disc 401 and the second rotating disc 405 form a cam structure, when the first rotating disc 401 and the second rotating disc 405 rotate eccentrically, one ends of the first rotating disc 401 and the second rotating disc 405, which are close to the hinge point of the connecting rod 402, deflect towards one side of the cable 5, so that the cable 5 is clamped, and secondary non-return of the suspension of the cable 5 is realized.
As shown in fig. 5 and 9, in the present embodiment, the extension plate 103 is provided with a second mounting groove 102, the second mounting groove 102 is slidably connected with a sliding block 406, the sliding block 406 is provided with a bearing 407, the lower end of the eccentric shaft 403 is fixedly mounted in an inner ring of the bearing 407, one side of the sliding block 406 is movably connected with a third adjusting screw 408, and one end of the third adjusting screw 408 extends to the outside of the extension plate 103 and is in threaded connection with the extension plate 103; the sliding block 406 and the third adjusting screw 408 are used for adjusting the distance between the first rotating disc 401 and the second rotating disc 405, and are suitable for cables 5 with different diameters.
As shown in fig. 1, in the present embodiment, grooves are provided on the side walls of the first rotating disc 401 and the second rotating disc 405 to increase the contact area between the first rotating disc 401 and the cable 5 and the second rotating disc 405, and the first rotating disc 401 and the second rotating disc 405 are arranged in a staggered manner; when the cable 5 slides in the suspension fitting, the first turntable 401 and the second turntable 405 rotate in opposite directions, so that the cable 5 forms a wave structure between the first turntable 401 and the second turntable 405, and the wave structure formed by the cable 5 between the first turntable 401 and the second turntable 405 is perpendicular to the wave structure formed by the cable 5 between the upper clamping plate 202 and the ram 301, so that the cable 5 forms a spatial non-return structure, and the sliding of the cable 5 is avoided as much as possible.
As shown in fig. 8, in this embodiment, the connecting rod 402 includes a stud 4022 and a connecting sleeve 4021 screwed to both ends of the stud 4022, the connecting sleeve 4021 at one end is hinged to the hoop 404, and the connecting sleeve 4021 at the other end is hinged to the first rotating disc 401 or the second rotating disc 405; the stud 4022 facilitates adjusting the length of the connecting rods 402, and adjusts the included angle between the connecting rods 402 at both sides to the maximum, so as to ensure the sensitivity of the second backstop mechanism 4 in stopping reverse.
When this gold utensil used, earlier with the gold utensil through fixing screw 104 fixed mounting on the cable testing bridge 6 of pole upper end, then open removable cover 2, place cable 5 on lower plate 1, cover removable cover 2 again, twist and move first adjusting screw 203 and make punch holder 202 compress tightly cable 5, because punch holder 202 is the V type structure of invering, and the middle part and the link 201 of punch holder 202 are articulated, when cable 5 slides in the gold utensil, frictional force between cable 5 and punch holder 202 drives punch holder 202 and rotates, one side of punch holder 202 pressurizes cable 5 downwards, the slip of cable 5 has been avoided. When the cable 5 slides in the hardware fitting, the friction force between the cable 5 and the ram 301 in the first backstop mechanism 3 drives the ram 301 to slide leftwards or rightwards in the support frame 302, the guide rod 304 drives the ram 301 to move upwards under the guiding action of the V-shaped guide groove 303, the friction force between the cable 5 and the ram 301 is increased, and a backstop is formed for the cable 5; meanwhile, when the first rotary disc 401 and the second rotary disc 405 in the second backstop mechanism 4 are driven by the connecting rod 402 to eccentrically rotate, one ends, close to the hinge point of the connecting rod 402, of the first rotary disc 401 and the second rotary disc 405 deflect towards one side of the cable 5, so that the cable 5 is clamped tightly, secondary backstop of the suspension of the cable 5 is realized, the backstop effect of the cable 5 is enhanced, and the stability of connection of the cable 5 and a suspension hardware fitting is ensured.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (10)
1. A cable suspension fitting for an overhead transmission line comprises a lower clamping plate and a movable cover plate, wherein a plurality of fixing screws are arranged at the lower part of the lower clamping plate and fixedly arranged on a cable bridge; be equipped with the arc recess that holds the cable on the lower plate, removable cover one end is articulated with the lower plate, and the other end passes through bolt detachably with the lower plate to be connected, its characterized in that, the inside link that is equipped with of removable cover, the link inboard is equipped with a plurality of punch holders, the punch holder is the V-arrangement structure, and punch holder upper portion both ends are articulated with the link, the opening part of punch holder is equipped with the arc recess that holds the cable, link upper portion swing joint has a adjusting screw, and a adjusting screw upper end runs through removable cover and with removable cover threaded connection.
2. The cable suspension fitting for the overhead transmission line according to claim 1, wherein fillets are arranged at two ends of the arc-shaped groove of the lower clamping plate and at the arc-shaped groove of the upper clamping plate, and anti-skid rubber pads are arranged on the upper portion of the arc-shaped groove of the lower clamping plate and the lower portion of the arc-shaped groove of the upper clamping plate.
3. The cable suspension fitting for the overhead transmission line according to claim 1, wherein a plurality of first mounting grooves are formed in the lower clamping plate, a first non-return mechanism is arranged in each first mounting groove, each first non-return mechanism comprises a supporting frame and a ram arranged in each supporting frame, V-shaped guide grooves are formed in two sides of each supporting frame, arc-shaped grooves matched with the arc-shaped grooves of the lower clamping plate are formed in the upper portions of the rams, guide rods are arranged at two ends of each ram and are slidably arranged in the V-shaped guide grooves, and in an initial state, the guide rods are located at the bottoms of the V-shaped guide grooves and protrude out of the arc-shaped grooves of the lower clamping plate in a sliding mode.
4. The cable suspension fitting for the overhead transmission line according to claim 3, wherein a plurality of springs are arranged on both sides of the ram, and the other ends of the springs abut against the inner wall of the support frame.
5. The cable suspension fitting for the overhead transmission line according to claim 3, wherein a second adjusting screw is movably connected to the lower portion of the support frame, the lower end of the second adjusting screw penetrates through the first mounting groove and extends to the lower portion of the lower clamping plate, and the second adjusting screw is in threaded connection with the lower clamping plate.
6. The cable suspension fitting for the overhead transmission line according to any one of claims 3 to 5, wherein the first check mechanism is arranged in the middle of the opening of the upper clamp plate, and when the cable slides, a ram of the first check mechanism moves upwards to enable the cable to form a wave-shaped structure between the upper clamp plate and the ram.
7. The cable suspension fitting for the overhead transmission line according to claim 6, wherein extension plates are arranged at two ends of the lower clamping plate, a second non-return mechanism is arranged on the extension plates, the second non-return mechanism comprises a first rotary disc arranged at one side of the arc-shaped groove of the lower clamping plate and a second rotary disc arranged at the other side of the arc-shaped groove of the lower clamping plate, the cable is arranged between the first rotary disc and the second rotary disc, and in an initial state, the side walls of the first rotary disc and the second rotary disc are both in contact with the cable; the lower parts of the first rotary table and the second rotary table are respectively provided with an eccentric shaft, the eccentric shafts are arranged on one side close to the cable, and the lower ends of the eccentric shafts are rotatably connected with the extension plate; the cable is provided with a hoop tightly connected with the cable, two sides of the upper part of the hoop are hinged with connecting rods, the other end of each connecting rod is hinged with the first rotary table or the second rotary table, and the hinged point of each connecting rod is eccentrically arranged with the first rotary table or the second rotary table.
8. The cable suspension fitting for the overhead transmission line according to claim 7, wherein a second mounting groove is formed in the extension plate, a sliding block is slidably connected to the second mounting groove, a bearing is arranged on the sliding block, the lower end of the eccentric shaft is fixedly mounted in an inner ring of the bearing, a third adjusting screw is movably connected to one side of the sliding block, and one end of the third adjusting screw extends to the outside of the extension plate and is in threaded connection with the extension plate.
9. The cable suspension fitting for the overhead transmission line according to claim 7, wherein grooves are formed in side walls of the first rotating disc and the second rotating disc, and the first rotating disc and the second rotating disc are arranged in a staggered mode; when the cable slides in the suspension fitting, the first rotary disc and the second rotary disc rotate in opposite directions, so that the cable forms a wave structure between the first rotary disc and the second rotary disc, and the wave structure formed by the cable between the first rotary disc and the second rotary disc is mutually vertical to the wave structure formed by the cable between the upper clamping plate and the ram, so that the cable forms a spatial non-return structure.
10. The cable suspension fitting for the overhead transmission line according to claim 7, wherein the connecting rod comprises a stud and connecting sleeves in threaded connection with two ends of the stud, the connecting sleeve at one end is hinged to the hoop, and the connecting sleeve at the other end is hinged to the first turntable or the second turntable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210237957.2A CN114512949B (en) | 2022-03-10 | 2022-03-10 | Cable suspension fitting for overhead transmission line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210237957.2A CN114512949B (en) | 2022-03-10 | 2022-03-10 | Cable suspension fitting for overhead transmission line |
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| CN114512949A true CN114512949A (en) | 2022-05-17 |
| CN114512949B CN114512949B (en) | 2024-01-16 |
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| CN202210237957.2A Active CN114512949B (en) | 2022-03-10 | 2022-03-10 | Cable suspension fitting for overhead transmission line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116470461A (en) * | 2023-04-18 | 2023-07-21 | 广东顺德胜崎电子科技有限公司 | Suspension fitting for carrying out pull-up suspension on power cable through movement and pull-up method |
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| CN116470461B (en) * | 2023-04-18 | 2023-11-24 | 新昌县新明实业有限公司 | Suspension fitting for carrying out pull-up suspension on power cable through movement and pull-up method |
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| Publication number | Publication date |
|---|---|
| CN114512949B (en) | 2024-01-16 |
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Effective date of registration: 20231211 Address after: No. 602 Taoyuan South Avenue, Pingyuan County Economic Development Zone, Dezhou City, Shandong Province, 253100 Applicant after: Pingyuan power supply company of State Grid Shandong electric power Co. Address before: 253100 No.49 Guangming West Street, Pingyuan County, Dezhou City, Shandong Province Applicant before: Pingyuan power supply company of State Grid Shandong electric power Co. Applicant before: Liu Zhaomeng |
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