CN113394732B - Power transmission and transformation circuit interval maintaining device - Google Patents
Power transmission and transformation circuit interval maintaining device Download PDFInfo
- Publication number
- CN113394732B CN113394732B CN202110673373.5A CN202110673373A CN113394732B CN 113394732 B CN113394732 B CN 113394732B CN 202110673373 A CN202110673373 A CN 202110673373A CN 113394732 B CN113394732 B CN 113394732B
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- clamping plate
- sliding sleeve
- groove
- connecting rod
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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
- H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
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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
-
- 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
- H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
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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
- H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
- H02G7/125—Damping spacers
Abstract
The invention discloses a power transmission and transformation circuit interval maintaining device which comprises a fixed seat, a supporting device and a fixing device, wherein the supporting device comprises a fixed plate arranged at one end of a connecting rod and supporting arms arranged at the front side and the rear side of the fixed plate, the connecting rod and the two supporting arms form a Y-shaped structure, the fixing device is arranged on an installation head, the fixing devices at the front side and the rear side are coaxially arranged, the fixing device comprises a jacking screw rod arranged on the installation head in a clearance mode and an inner clamping plate arranged at one end of the jacking screw rod, the upper end of the jacking screw rod is in threaded connection with a connecting handle, and the upper end of the connecting handle is fixedly connected with an outer clamping plate. According to the invention, the front side and the rear side of the connecting rod are respectively provided with a group of supporting devices, the end parts of the supporting devices are provided with the fixing devices, the conducting wires are fixed in the fixing devices, the fixing devices on the front side and the rear side convert the traditional point support into the line support, the stability of the interval of the conducting wires is enhanced, the number of the spacers is reduced, and the efficiency of spacer installation is improved.
Description
Technical Field
The invention belongs to the technical field of spacers, and particularly relates to a power transmission and transformation line spacing maintaining device.
Background
The transmission line is an important component of the power system, the transmission, distribution and use of electric energy cannot be separated from the transmission line, and the fault rate of the transmission line directly influences the stability of the power system. The working environment of the line is complex, and factors influencing the stability of the line are more, wherein a single-phase ground fault is the most common line fault in short-circuit faults, a two-phase short-circuit fault is the most easily-occurring line fault except the single-phase ground fault, in the power transmission line, particularly in a second-level and third-level galloping area, the wire can gallop due to wind, the galloping not only causes short-circuit tripping, but also can cause the looseness of a pole and tower bolt, the reduction of strength and the damage of hardware fittings, insulators and jumper wires due to long-time galloping; the wire is broken strand and wire, the tower material and the foundation are damaged, even the tower falls down and other a great deal of mechanical damage, and the difficulty of rush repair is large. In addition, defects such as looseness of tower bolts, hidden damage of wires, hardware fittings and insulators and the like caused by galloping are often difficult to find in a short time, and threat to safe operation of the line is formed.
The spacer is a representative one of the interval maintaining devices, and is a simple device which creates an interval by means of mechanical connection, and the interval maintaining device is achieved by fixing two ends to be spaced apart by fixing devices at two ends and a non-deformable support rod to create an interval distance to be achieved. However, the existing spacers are provided with single supporting arms at the corners of the fixing seat, and one end of each supporting arm is provided with a wire fixing device, so that the supporting force of the single supporting arm is unstable when the spacer is used.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a power transmission and transformation circuit interval maintaining device.
In order to achieve the purpose, the invention adopts the technical scheme that:
the interval maintaining device for the power transmission and transformation circuit comprises a fixed seat, a supporting device and a fixing device, wherein the fixed seat comprises a fixed block and a connecting rod arranged on the outer end face of the fixed block, and the section of the fixed block is square, regular hexagon or regular octagon, so that the interval maintaining device for the bipartite, quadripartite, hexapartite or octant conducting wires is formed; the supporting device comprises a fixing plate arranged at one end of the connecting rod, supporting arms arranged at the front side and the rear side of the fixing plate, the connecting rod and the two supporting arms form a Y-shaped structure, an installation head is arranged at one end of each supporting arm, the fixing device is arranged on the installation head, the fixing devices at the front side and the rear side are coaxially arranged, the fixing device comprises a jacking screw rod arranged on the installation head in a clearance mode, and an inner clamping plate arranged at one end of the jacking screw rod, a T-shaped clamping groove is formed in one side of the inner clamping plate, a clamping head is arranged at one end of the jacking screw rod, the clamping head is movably arranged in the T-shaped clamping groove, an end cover is arranged at the lower end of the jacking screw rod, a second rotating disc is arranged at one side of the end cover, the end cover and the second rotating disc are respectively arranged at two sides of the installation head, the jacking screw rod is limited on the installation head, the jacking screw rod can only rotate on the installation head, and a connecting handle is connected to the upper end of the jacking screw rod in a threaded mode, the upper end fixedly connected with outer splint of connecting handle, inner splint set up in the inside of outer splint, and the diameter of outer splint is greater than the diameter of inner splint, and outer splint one side is equipped with the breach, and the wire passes through the breach card and goes into between outer splint and the inner splint.
During the use, the breach card that leads to through outer splint one side earlier is gone into between outer splint and the inner plate, then rotate the second carousel, fixed mounting drives the tight screw rod in top at the second carousel on the tight screw rod in top and rotates, when the tight screw rod in top rotates, drive the shrink of outer splint through the connecting handle, compress tightly the wire between outer splint and inner plate, because the one end at a connecting rod has set up two sets of coaxial fixing device who arranges, the point with traditional conductor spacer supports and changes the line into and supports, wire spaced stability has been strengthened, and the quantity of conductor spacer installation has been reduced, the efficiency of conductor spacer installation has been improved.
As a further optimization of the technical scheme, rubber pads are arranged on the inner sides of the inner clamping plate and the outer clamping plate, so that abrasion caused by conductor galloping is avoided.
As a further optimization of the technical scheme, the outside cover of connecting rod is equipped with the sleeve, telescopic one end and fixed block fixed connection, through gusset fixed connection between adjacent sleeve, connecting rod one end is equipped with a plurality of guide blocks, be equipped with a plurality of guide slots with guide block clearance fit on the sleeve, the inside buffer spring that is equipped with of sleeve, buffer spring one end and fixed block fixed connection, the buffer spring other end and connecting rod fixed connection, buffer spring play the cushioning effect under the circumstances of external force such as strong wind, both can guarantee that transmission line can not collide, the winding together, also can avoid under the circumstances of external force such as strong wind, the circumstances of dragging between the circuit damage interval holding device.
As a further preferred option of the technical solution, the support arm is a hollow tubular structure, one end of the support arm is provided with a through hole, an adjusting bolt is arranged inside the through hole, the support arm is connected with a telescopic rod in a sliding manner, and the telescopic rod is provided with a plurality of uniformly arranged adjusting holes; according to the interval and the spacing distance between the wires, the extension length of the supporting arm is adjusted, the corresponding adjusting hole is aligned with the through hole, the adjusting bolt is inserted into the adjusting hole and fixed with the supporting arm inside the through hole, and the spacing distance between the wires is convenient to adjust.
As a further preference of the technical scheme, the lower end of the telescopic rod is hinged to the fixing plate, sliding blocks are arranged outside the supporting arms, sliding grooves are formed in the sliding blocks, the supporting arms are installed inside the sliding grooves in a clearance mode, threaded holes are formed in the upper portions of the sliding blocks, the sliding blocks on two sides of the same connecting rod are connected through double-end studs, the double-end studs are rotated to adjust included angles between the supporting arms on two sides of the same connecting rod, fine adjustment of the spacing distance between wires is facilitated, the distance between two fixing devices on the same wire is convenient to adjust, the stability of the spacing between the wires is ensured, a first rotary table is fixedly installed in the middle of each double-end stud, and the first rotary table achieves tool-free rapid adjustment of the included angles of the supporting arms; to ensure that the two fixtures on the same wire are coaxially arranged, the mounting head is hinged to a support arm (not shown).
As a further optimization of the technical scheme, one end of the jacking screw rod is provided with a ratchet wheel, one side of the ratchet wheel is provided with a pawl, one side of the mounting head is provided with a baffle, one end of the pawl is movably mounted on one side of the mounting head through a pin shaft, one side of the pawl is provided with a pull rod, one end of the pull rod penetrates through the baffle and is connected with a pull ring, a first jacking spring is sleeved outside the pull rod, one end of the first jacking spring is connected with the pawl, and the other end of the first jacking spring is connected with the baffle; the ratchet pawl enables the jacking screw rod to rotate only in one direction, so that the phenomenon that the fixing action of the outer clamping plate and the inner clamping plate on the wire is influenced due to the looseness of the connecting handle and the jacking screw rod when the wire shakes under the action of external force such as strong wind and the like is avoided; when the interval maintaining device is disassembled, the pull ring is pulled to separate the pawl from the ratchet wheel, and then the jacking screw rod is rotated reversely.
As a further preferred option of this technical scheme, the breach department of outer splint articulates there is the fly leaf, fly leaf one end is equipped with the buckle, connecting handle one end be equipped with buckle interference fit's catching groove, the wire clamp back between inner splint and outer splint, the buckle lock of fly leaf is inside the catching groove, connecting handle one end outside is equipped with clamping device, and clamping device sets up in the outside of catching groove, and fly leaf and clamping device have avoided the wire to follow the breach slippage.
As a further preferred of this technical scheme, the clamping device establishes the outside sliding sleeve of connecting handle including the cover, the connecting handle is close to the outside external screw thread (not shown in the figure) that is equipped with of one end of catching groove, sliding sleeve and connecting handle threaded connection, and the sliding sleeve revolves to catching groove upper portion after, with the buckle restriction inside the catching groove, has avoided the fly leaf accident to open.
As a further preference of the technical scheme, the clamping device comprises a sliding sleeve sleeved outside the connecting handle, one end of the connecting handle is provided with a ring plate, a second jacking spring is sleeved outside the connecting handle, one end of the second jacking spring is fixedly connected with the ring plate, and the other end of the second jacking spring is fixedly connected with the sliding sleeve; when the buckle is used, the sliding sleeve is pulled backwards, the movable plate is opened, the wire is clamped between the outer clamping plate and the inner clamping plate, the buckle plate is buckled inside the buckle groove, then the sliding sleeve is loosened, the sliding sleeve is tightly pushed towards one end of the connecting handle under the action of the elastic force of the second pushing spring, the buckle plate is limited inside the buckle groove, and the movable plate is prevented from being opened accidentally.
As a further preference of this technical scheme, catching groove one side is equipped with spacing post, sliding sleeve one end is equipped with the L type spacing groove that holds spacing post, and during the sliding sleeve natural state, spacing post aligns with the tip of the horizontal part in L type spacing groove, and when the sliding sleeve card was gone into and was unscrewed the spacing post, all need rotate the sliding sleeve, make spacing post align with the vertical portion in L type spacing groove, has avoided the sliding sleeve accident to open effectively.
The invention has the beneficial effects that:
1) according to the invention, the front side and the rear side of the connecting rod are respectively provided with a group of supporting devices, the end parts of the supporting devices are provided with the fixing devices, the conducting wire is fixed in the fixing devices, the fixing devices on the front side and the rear side convert the traditional point support into the line support, the stability of the interval of the conducting wire is enhanced, the number of the installed spacing rods is reduced, and the installation efficiency of the spacing rods is improved.
2) The inner side of the inner splint and the inner side of the outer splint are respectively provided with a rubber pad, so that the wires are prevented from being worn when galloping.
3) Outside cover of connecting rod is equipped with the sleeve, telescopic one end and fixed block fixed connection, through gusset fixed connection between adjacent sleeve, connecting rod one end is equipped with a plurality of guide blocks, be equipped with a plurality of guide block clearance fit's guide slot on the sleeve, the inside buffer spring that is equipped with of sleeve, buffer spring one end and fixed block fixed connection, the buffer spring other end and connecting rod fixed connection, buffer spring plays the cushioning effect under the circumstances of external force such as strong wind, both can guarantee that transmission line can not collide, the winding is in the same place, also can avoid under the circumstances of external force such as strong wind, the condition of damaging interval maintenance device is dragged between the circuit.
4) The supporting arm is of a hollow tubular structure, a through hole is formed in one end of the supporting arm, an adjusting bolt is arranged in the through hole, a telescopic rod is connected to the inside of the supporting arm in a sliding mode, and a plurality of adjusting holes which are uniformly distributed are formed in the telescopic rod; according to the interval and the spacing distance between the wires, the extension length of the supporting arm is adjusted, the corresponding adjusting hole is aligned with the through hole, the adjusting bolt is inserted into the adjusting hole and fixed with the supporting arm inside the through hole, and the spacing distance between the wires is convenient to adjust.
5) The lower end of the telescopic rod is hinged with the fixing plate, a sliding block is arranged outside the supporting arm, a sliding groove is arranged inside the sliding block, the supporting arm is installed inside the sliding groove in a clearance mode, a threaded hole is formed in the upper portion of the sliding block, the sliding blocks on two sides of the same connecting rod are connected through a double-end stud, the double-end stud is rotated to adjust the included angle between the supporting arms on two sides of the same connecting rod, fine adjustment of the spacing distance of wires is facilitated, meanwhile, the distance between two fixing devices on the same wire is facilitated to be adjusted, the stability of the spacing of the wires is ensured, a first rotating disc is fixedly installed in the middle of the double-end stud, and the first rotating disc achieves tool-free rapid adjustment of the included angle of the supporting arm; in order to ensure that the two fixing devices on the same wire are coaxially arranged, the mounting head is hinged with the supporting arm.
6) One end of the jacking screw rod is provided with a ratchet wheel, one side of the ratchet wheel is provided with a pawl, one side of the mounting head is provided with a baffle, one end of the pawl is movably mounted on one side of the mounting head through a pin shaft, one side of the pawl is provided with a pull rod, one end of the pull rod penetrates through the baffle and is connected with a pull ring, a first jacking spring is sleeved outside the pull rod, one end of the first jacking spring is connected with the pawl, and the other end of the first jacking spring is connected with the baffle; the ratchet pawl enables the jacking screw rod to rotate only in one direction, so that the phenomenon that when the lead shakes due to external force action of strong wind and the like is avoided, the connecting handle and the jacking screw rod are loosened to influence the fixing action of the outer clamping plate and the inner clamping plate on the lead; when the interval maintaining device is disassembled, the pull ring is pulled to separate the pawl from the ratchet wheel, and then the screw is tightly jacked by reversely rotating.
7) The breach department of outer splint articulates there is the fly leaf, and fly leaf one end is equipped with the buckle, and connecting handle one end is equipped with the catching groove with buckle interference fit, and the wire clamp is held between inner plate and outer splint after, the buckle lock of fly leaf is inside the catching groove, and connecting handle one end outside is equipped with block device, and block device sets up in the outside of catching groove, and fly leaf and block device have avoided the wire from breach department slippage.
8) The clamping device comprises a sliding sleeve which is sleeved on the outer portion of the connecting handle, an external thread is arranged on the outer portion of one end, close to the buckling groove, of the connecting handle, the sliding sleeve is in threaded connection with the connecting handle, and the sliding sleeve is screwed to the upper portion of the buckling groove and limits the buckling plate inside the buckling groove, so that the movable plate is prevented from being opened accidentally.
9) The clamping device comprises a sliding sleeve sleeved outside the connecting handle, one end of the connecting handle is provided with a ring plate, a second jacking spring is sleeved outside the connecting handle, one end of the second jacking spring is fixedly connected with the ring plate, and the other end of the second jacking spring is fixedly connected with the sliding sleeve; when the buckle is used, the sliding sleeve is pulled backwards, the movable plate is opened, the wire is clamped between the outer clamping plate and the inner clamping plate, the buckle plate is buckled inside the buckle groove, then the sliding sleeve is loosened, the sliding sleeve is tightly pushed towards one end of the connecting handle under the action of the elastic force of the second pushing spring, the buckle plate is limited inside the buckle groove, and the movable plate is prevented from being opened accidentally.
10) Catching groove one side is equipped with spacing post, and sliding sleeve one end is equipped with the L type spacing groove that holds spacing post, and during the sliding sleeve natural state, the tip of the horizontal part of spacing post and L type spacing groove aligns, and when the sliding sleeve card was gone into and was unscrewed spacing post, all need rotate the sliding sleeve, made spacing post align with the vertical portion of L type spacing groove, had avoided the sliding sleeve accident to open effectively.
Drawings
FIG. 1 is a diagram illustrating a state of an interval maintaining device for power transmission and transformation lines according to the present invention.
Fig. 2 is a schematic structural diagram of a power transmission and transformation line interval maintaining device according to the present invention.
FIG. 3 is a schematic view of a fixing base structure of an interval maintaining device for power transmission and transformation lines according to the present invention.
FIG. 4 is a schematic structural diagram of a supporting device of the interval maintaining device for power transmission and transformation lines according to the present invention.
FIG. 5 is an exploded view of a supporting device and a fixing device of the interval maintaining device for power transmission and transformation lines according to the present invention.
FIG. 6 is an exploded view of a fixing device in the interval maintaining device for power transmission and transformation lines according to the present invention.
FIG. 7 is a schematic view of the assembly of a tightening screw, a ratchet and a pawl in the interval maintaining device for power transmission and transformation lines.
In the figure:
1. a wire;
2. a fixed seat; 201. a fixed block; 202. a connecting rod; 203. a guide block; 204. a sleeve; 205. a guide groove; 206. a rib plate; 207. a buffer spring;
3. a support device; 301. a fixing plate; 302. a telescopic rod; 303. an adjustment hole; 304. adjusting the bolt; 305. a support arm; 306. a through hole; 307. a mounting head; 308. a baffle plate; 309. a slider; 310. a chute; 311. a threaded hole; 312. a stud; 313. a first turntable;
4. a fixing device; 401. an outer splint; 402. a movable plate; 403. buckling the plate; 404. an inner splint; 405. a T-shaped clamping groove; 406. clamping a head; 407. tightly pushing the screw; 408. a second turntable; 409. an end cap; 410. a ratchet wheel; 411. a pawl; 412. a first urging spring; 413. a pull rod; 414. a pull ring; 415. buckling grooves; 416. a connecting handle; 417. a ring plate; 418. a sliding sleeve; 419. a second puller spring; 420. a limiting column; 421. l type spacing groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 7, 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", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, a particular orientation configuration and operation, and therefore, are not to be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 7, an interval maintaining device for a power transmission and transformation line comprises a fixed seat 2, a supporting device 3 and a fixing device 4, wherein the fixed seat 2 comprises a fixed block 201 and a connecting rod 202 arranged on the outer end face of the fixed block 201, the cross section of the fixed block 201 is square, regular hexagon or regular octagon, and thus an interval maintaining device for a binary-split, quaternary-split, hexa-split or octa-split lead 1 is formed; the supporting device 3 comprises a fixed plate 301 arranged at one end of a connecting rod 202, supporting arms 305 arranged at the front side and the rear side of the fixed plate 301, the connecting rod 202 and the two supporting arms 305 form a Y-shaped structure, one end of each supporting arm 305 is provided with a mounting head 307, the fixing device 4 is arranged on the mounting head 307, the fixing devices 4 at the front side and the rear side are coaxially arranged, the fixing device 4 comprises a jacking screw 407 arranged on the mounting head 307 in a clearance mode, an inner clamping plate 404 arranged at one end of the jacking screw 407, one side of the inner clamping plate 404 is provided with a T-shaped clamping groove 405, one end of the jacking screw 407 is provided with a clamping head 406, the clamping head 406 is movably arranged inside the T-shaped clamping groove 405, the lower end of the jacking screw 407 is provided with an end cover 409, one side of the end cover 409 is provided with a second turntable 408, the end cover 409 and the second turntable 408 are respectively arranged at two sides of the mounting head 307, so as to limit the jacking screw 407 on the mounting head 307, make the tight screw 407 in top can only rotate on installation head 307, the threaded connection in top tight screw 407 upper end has the connection handle 416, the outer splint 401 of upper end fixedly connected with of connection handle 416, and inner splint 404 sets up in the inside of outer splint 401, and the diameter of outer splint 401 is greater than the diameter of inner splint 404, and outer splint 401 one side is equipped with the breach, and wire 1 passes through the breach card and goes into between outer splint 401 and the inner splint 404.
During the use, earlier the direction is gone into between outer splint 401 and the interior splint 404 through the breach card of outer splint 401 one side, then rotate second carousel 408, fixed mounting drives the tight screw rod 407 rotation in top second carousel 408 on the tight screw rod 407 of top, when the tight screw rod 407 of top rotates, drive the shrink of outer splint 401 through connecting handle 416, compress tightly wire 1 between outer splint 401 and interior splint 404, because the one end at a connecting rod 202 has set up two sets of coaxial fixing device 4 of arranging, the some support with traditional conductor spacer changes the line into and supports, 1 spaced stability of wire has been strengthened, and the quantity of conductor spacer installation has been reduced, the efficiency of conductor spacer installation has been improved.
In this embodiment, the inner side of the inner clamping plate 404 and the inner side of the outer clamping plate 401 are both provided with rubber pads, so that abrasion of the lead 1 during galloping is avoided.
As shown in fig. 3, in this embodiment, a sleeve 204 is sleeved outside the connecting rod 202, one end of the sleeve 204 is fixedly connected to the fixing block 201, adjacent sleeves 204 are fixedly connected to each other through a rib plate 206, one end of the connecting rod 202 is provided with a plurality of guide blocks 203, the sleeve 204 is provided with a plurality of guide grooves 205 in clearance fit with the guide blocks 203, a buffer spring 207 is arranged inside the sleeve 204, one end of the buffer spring 207 is fixedly connected to the fixing block 201, the other end of the buffer spring 207 is fixedly connected to the connecting rod 202, and the buffer spring 207 plays a role in buffering under external forces such as strong wind, so that it is ensured that the transmission line is not collided and wound together, and it is also avoided that the interval maintaining device is damaged by pulling between lines under external forces such as strong wind.
As shown in fig. 4-5, in the present embodiment, the supporting arm 305 is a hollow tubular structure, a through hole 306 is formed at one end of the supporting arm 305, an adjusting bolt 304 is disposed inside the through hole 306, an expansion link 302 is slidably connected inside the supporting arm 305, and a plurality of adjusting holes 303 are uniformly arranged on the expansion link 302; according to the spacing distance and the spacing distance between the wires 1, the extending length of the supporting arm 305 is adjusted, the corresponding adjusting hole 303 is aligned with the through hole 306, and the adjusting bolt 304 is inserted into the adjusting hole 303 and the through hole 306 to fix the supporting arm 305, so that the spacing distance between the wires 1 can be adjusted conveniently.
As shown in fig. 4, in this embodiment, the lower end of the telescopic rod 302 is hinged to the fixing plate 301, a sliding block 309 is disposed outside the supporting arm 305, a sliding slot 310 is disposed inside the sliding block 309, the supporting arm 305 is installed inside the sliding slot 310 with a clearance, a threaded hole 311 is disposed on the upper portion of the sliding block 309, the sliding blocks 309 on two sides of the same connecting rod 202 are connected by a stud 312, the stud 312 is rotated to adjust an included angle between the supporting arms 305 on two sides of the same connecting rod 202, which not only facilitates fine adjustment of a spacing distance between wires 1, but also facilitates adjustment of a distance between two fixing devices 4 on the same wire 1 to ensure stability of the spacing between the wires 1, a first rotating disc 313 is fixedly installed in the middle of the stud 312, and the first rotating disc 313 achieves tool-free quick adjustment of the included angle between the supporting arms 305; in order to ensure that the two fixing devices 4 on the same conductor 1 are arranged coaxially, the mounting head 307 is hinged to the support arm 305 (not shown in the figures).
As shown in fig. 4-6, in this embodiment, one end of the tightening screw 407 is provided with a ratchet 410, one side of the ratchet 410 is provided with a pawl 411, one side of the mounting head 307 is provided with a baffle 308, one end of the pawl 411 is movably mounted on one side of the mounting head 307 through a pin, one side of the pawl 411 is provided with a pull rod 413, one end of the pull rod 413 penetrates through the baffle 308 and is connected with a pull ring 414, a first tightening spring 412 is sleeved outside the pull rod 413, one end of the first tightening spring 412 is connected with the pawl 411, and the other end of the first tightening spring 412 is connected with the baffle 308; the ratchet wheel 410 and the pawl 411 enable the jacking screw rod 407 to rotate only in one direction, so that the phenomenon that when the lead 1 shakes due to external force action of strong wind and the like is avoided, the connecting handle 416 and the jacking screw rod 407 are loosened to influence the fixing action of the outer clamping plate 401 and the inner clamping plate 404 on the lead 1; when the interval maintaining device is disassembled, the pull ring 414 is pulled to separate the pawl 411 from the ratchet 410, and then the tightening screw 407 is rotated reversely.
As shown in fig. 6, in this embodiment, a movable plate 402 is hinged to the notch of the outer clamp plate 401, a buckle plate 403 is disposed at one end of the movable plate 402, a buckle groove 415 in interference fit with the buckle plate 403 is disposed at one end of the connecting handle 416, after the wire 1 is clamped between the inner clamp plate 404 and the outer clamp plate 401, the buckle plate 403 of the movable plate 402 is buckled inside the buckle groove 415, a fastening device is disposed outside one end of the connecting handle 416, the fastening device is disposed outside the buckle groove 415, and the movable plate 402 and the fastening device prevent the wire 1 from slipping out of the notch.
In this embodiment, the engaging device includes a sliding sleeve 418 disposed on the outer portion of the connecting rod 416, an external thread (not shown) is disposed on the outer portion of one end of the connecting rod 416 close to the fastening slot 415, the sliding sleeve 418 is threadedly connected to the connecting rod 416, and the sliding sleeve 418 is screwed to the upper portion of the fastening slot 415 to limit the fastening plate 403 inside the fastening slot 415, thereby preventing the movable plate 402 from being accidentally opened.
Example 2
As shown in fig. 6, different from embodiment 1, in this embodiment, the engaging device includes a sliding sleeve 418 disposed outside the connecting handle 416, a ring plate 417 is disposed at one end of the connecting handle 416, a second urging spring 419 is disposed outside the connecting handle 416, one end of the second urging spring 419 is fixedly connected to the ring plate 417, and the other end of the second urging spring 419 is fixedly connected to the sliding sleeve 418; when the wire drawing device is used, the sliding sleeve 418 is pulled backwards firstly, the movable plate 402 is opened, after the wire 1 is clamped between the outer clamping plate 401 and the inner clamping plate 404, the buckling plate 403 is buckled inside the buckling groove 415, then the sliding sleeve 418 is loosened, the sliding sleeve 418 is tightly propped against one end of the connecting handle 416 under the action of the elastic force of the second propping spring 419, the buckling plate 403 is limited inside the buckling groove 415, and the movable plate 402 is prevented from being opened accidentally.
As shown in fig. 6, in this embodiment, a limit post 420 is disposed on one side of the fastening groove 415, an L-shaped limit groove 421 for accommodating the limit post 420 is disposed at one end of the sliding sleeve 418, when the sliding sleeve 418 is in a natural state, the limit post 420 is aligned with an end of a horizontal portion of the L-shaped limit groove 421, and when the sliding sleeve 418 is fastened into and screwed out of the limit post 420, the sliding sleeve 418 needs to be rotated, so that the limit post 420 is aligned with a vertical portion of the L-shaped limit groove 421, thereby effectively preventing the sliding sleeve 418 from being opened accidentally.
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 (8)
1. A power transmission and transformation circuit interval maintaining device comprises a fixed seat, a supporting device and a fixing device, wherein the fixed seat comprises a fixed block and a connecting rod arranged on the outer end face of the fixed block, and the section of the fixed block is square, regular hexagon or regular octagon; the device is characterized in that the supporting device comprises a fixed plate arranged at one end of a connecting rod, supporting arms arranged at the front side and the rear side of the fixed plate, the connecting rod and the two supporting arms form a Y-shaped structure, an installing head is arranged at one end of each supporting arm, the fixing device is arranged on the installing head, the fixing devices at the front side and the rear side are coaxially arranged, the fixing device comprises a jacking screw rod arranged on the installing head in a clearance mode and an inner clamping plate arranged at one end of the jacking screw rod, a T-shaped clamping groove is formed in one side of the inner clamping plate, a clamping head is arranged at one end of the jacking screw rod, the clamping head is movably arranged in the T-shaped clamping groove, an end cover is arranged at the lower end of the jacking screw rod, a second rotating disc is arranged at one side of the end cover, the end cover and the second rotating disc are respectively arranged at two sides of the installing head, a connecting handle is connected with the upper end of the jacking screw rod in a threaded mode, an outer clamping plate is fixedly connected to the upper end of the connecting handle, and the inner clamping plate is arranged in the outer clamping plate, the diameter of the outer clamping plate is larger than that of the inner clamping plate, a notch is formed in one side of the outer clamping plate, and a lead is clamped between the outer clamping plate and the inner clamping plate through the notch; the support arm is of a hollow tubular structure, a through hole is formed in one end of the support arm, an adjusting bolt is arranged in the through hole, a telescopic rod is connected to the inside of the support arm in a sliding mode, and a plurality of adjusting holes which are uniformly distributed are formed in the telescopic rod; the utility model discloses a fixing device for fixing a connecting rod, including telescopic link, support arm, slider, support head, mounting plate, the telescopic link lower extreme is articulated with the fixed plate, the support arm outside is equipped with the slider, and the inside spout that is equipped with of slider, support arm install inside the spout with the clearance, slider upper portion is equipped with the screw hole, and the slider of same connecting rod both sides passes through stud to be connected, stud middle part fixedly installs first carousel, mounting head is articulated with the support arm.
2. The transmission and transformation line spacing maintenance device of claim 1, wherein rubber pads are provided on the inner sides of said inner and outer clamping plates.
3. The electric transmission and transformation circuit spacing maintaining device according to claim 1, wherein a sleeve is sleeved outside the connecting rod, one end of the sleeve is fixedly connected with the fixed block, the adjacent sleeves are fixedly connected through rib plates, one end of the connecting rod is provided with a plurality of guide blocks, the sleeve is provided with a plurality of guide grooves in clearance fit with the guide blocks, a buffer spring is arranged inside the sleeve, one end of the buffer spring is fixedly connected with the fixed block, and the other end of the buffer spring is fixedly connected with the connecting rod.
4. The electrical transmission and transformation circuit spacing maintenance device according to claim 1, wherein said tightening screw has a ratchet at one end, a pawl at one side of said ratchet, a baffle at one side of said mounting head, a pull rod at one end of said pawl movably mounted at one side of said mounting head by a pin, a pull ring connected to one end of said pull rod through said baffle, a first tightening spring externally fitted on said pull rod, one end of said first tightening spring being connected to said pawl, and the other end of said first tightening spring being connected to said baffle.
5. The transmission and transformation line spacing maintaining device according to any one of claims 1 to 4, wherein a movable plate is hinged to the gap of the outer clamping plate, a buckle plate is arranged at one end of the movable plate, a buckle groove in interference fit with the buckle plate is arranged at one end of the connecting handle, after the conductor is clamped between the inner clamping plate and the outer clamping plate, the buckle plate of the movable plate is buckled inside the buckle groove, a clamping device is arranged outside one end of the connecting handle, and the clamping device is arranged outside the buckle groove.
6. The transmission and transformation circuit spacing maintaining device of claim 5, wherein the engaging means comprises a sliding sleeve disposed on an outer portion of the connecting handle, an external thread is disposed on an outer portion of an end of the connecting handle adjacent to the buckling groove, the sliding sleeve is in threaded connection with the connecting handle, and the sliding sleeve is screwed to an upper portion of the buckling groove to limit the buckling plate inside the buckling groove.
7. The transmission and transformation line spacing maintenance device of claim 5, wherein said engaging means comprises a sliding sleeve disposed outside said connecting handle, one end of said connecting handle is provided with a ring plate, said connecting handle is externally provided with a second urging spring, one end of said second urging spring is fixedly connected to said ring plate, and the other end of said second urging spring is fixedly connected to said sliding sleeve.
8. The transmission and transformation line spacing maintenance device according to claim 7, wherein a limiting post is disposed on one side of the catching groove, an L-shaped limiting groove for accommodating the limiting post is disposed at one end of the sliding sleeve, when the sliding sleeve is in a natural state, the limiting post is aligned with an end of the horizontal portion of the L-shaped limiting groove, and when the sliding sleeve is inserted into and screwed out of the limiting post, the sliding sleeve is rotated to align the limiting post with the vertical portion of the L-shaped limiting groove.
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| CN202110673373.5A CN113394732B (en) | 2021-06-17 | 2021-06-17 | Power transmission and transformation circuit interval maintaining device |
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| CN202110673373.5A CN113394732B (en) | 2021-06-17 | 2021-06-17 | Power transmission and transformation circuit interval maintaining device |
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| CN113394732A CN113394732A (en) | 2021-09-14 |
| CN113394732B true CN113394732B (en) | 2022-08-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113852033B (en) * | 2021-09-18 | 2023-03-24 | 国网山东省电力公司建设公司 | Space division split conductor anti-galloping spacer |
| CN113937704B (en) * | 2021-11-15 | 2023-03-14 | 国网山东省电力公司经济技术研究院 | Split conductor assembled anti-galloping spacer |
| CN114243611A (en) * | 2021-12-31 | 2022-03-25 | 国网河南省电力公司电力科学研究院 | Emergent controlling means that ends dance of transmission line |
| CN115588953A (en) * | 2022-11-11 | 2023-01-10 | 贵州电网有限责任公司 | Power supply line fixer |
| CN116154701B (en) * | 2023-04-18 | 2023-07-07 | 国网山东省电力公司东平县供电公司 | Supporting device for erecting cable above sea |
| CN116995599B (en) * | 2023-09-28 | 2024-01-23 | 国网山东省电力公司梁山县供电公司 | Suspension wire clamp for power supply wire |
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| JPH1132418A (en) * | 1997-07-09 | 1999-02-02 | Chubu Electric Power Co Inc | Spacer grip-holding structure |
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| CN105162056B (en) * | 2015-10-09 | 2018-04-17 | 广州番禺电缆集团有限公司 | A kind of cable fixture |
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| CN110224338A (en) * | 2019-07-16 | 2019-09-10 | 新疆工程学院 | A kind of conductors on quad bundled angle interval stick mounting fixture and application method |
| CN212627059U (en) * | 2020-07-09 | 2021-02-26 | 山东光大线路器材有限公司 | Eight-split spacer with adjusting structure |
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