CN212304476U - Porcelain insulator davit - Google Patents

Abstract

The utility model discloses a vase davit includes ratchet jib, extension rod and U type pendant, and it mainly drives the rising or the decline of vase through U type pendant and realizes changing strain insulator. Wherein U type pendant passes through the lifting rope connecting piece and connects on the ratchet jib, and the ratchet jib passes through the jib supporting seat to be fixed on the cross arm, and the extension rod passes through the jib connecting piece and connects on the ratchet jib. The whole porcelain insulator suspension arm mainly operates the crank mechanism on the suspension rod connecting piece to rotate through the insulating hook head operating rod, the crank mechanism is rotated to control the insulating suspension rope in the suspension rope connecting piece to be rolled up or released, and then the U-shaped hanging piece is driven to ascend or descend, so that the replacement of new and old insulators is realized, namely, the old tension insulator is hung down through the U-shaped hanging piece, and the new tension insulator is hung up. The utility model has the advantages that: the use of most insulating shielding measures can be reduced, the complexity and the operation risk of overhauling operation are greatly reduced, and the operation time is shortened.

Description

Porcelain insulator davit

Technical Field

The utility model relates to a live working device field, specific saying so relates to a vase davit.

Background

With the high-speed development of domestic live working technology, live working technology is more and more perfect, especially the insulator spindle live working method which is more guaranteed to safety, more and more line faults can be realized in the maintenance process, the whole work is completed through the insulator spindle live working, the maintenance operation of insulator replacement can be realized only through an insulating glove method for a long time, and the risk of operators and the operation duration can be increased under a plurality of environments.

In addition, in the conventional live-line maintenance operation, in places where strain insulators need to be replaced, complete insulation shielding treatment is often required, that is, various insulation shielding covers are required to ensure the safety of operating personnel, but even if the insulation shielding treatment is performed, the safety risk still exists during the operation.

SUMMERY OF THE UTILITY MODEL

To the problem in the background art, the utility model aims to provide a can reduce most insulating use of shielding multiplexer utensil to can greatly increased working distance, more can guarantee the vase davit of operation personnel's safety, through the utility model provides an insulator spindle operation that strain insulator changed is realized to the vase davit.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a vase davit includes ratchet jib, extension rod and U type pendant, ratchet jib one end is passed through the jib connecting piece and is linked to each other with the extension rod, and the other end passes through the lifting rope connecting piece and links to each other with U type pendant still press from both sides on the ratchet jib and be equipped with the jib supporting seat, the jib supporting seat be used for with the ratchet jib is fixed on the pole cross arm.

Among the above-mentioned technical scheme, U type pendant includes U type stores pylon, stores pylon shelves pole, rings screw, stores pylon top pearl, the fast socket of stores pylon and stores pylon link plate, stores pylon shelves pole setting is at the open end of U type stores pylon, and stores pylon shelves pole one end dew and establish the outside in U type stores pylon open end one side to link to each other with the rings screw, the opposite side stretches to establish the inside at U type stores pylon open end, the stores pylon top pearl is installed on stores pylon shelves pole, the fast socket of stores pylon is fixed in the bottom of U type stores pylon, the outside at the open end opposite side of U type stores pylon is fixed to the stores pylon link plate, U type stores pylon pass through the lifting rope connecting piece with the ratchet jib links to each other.

In the technical scheme, the lifting rope connecting piece comprises a lifting rope fixing seat, an insulating lifting rope, a hook and a group of lifting rope rollers, the group of lifting rope rollers are fixed on the lifting rope fixing seat, the lifting rope fixing seat is fixed on the ratchet suspender, one end of the insulating lifting rope is connected with the hook, and the other end of the insulating lifting rope sequentially penetrates through the two lifting rope rollers fixed on the lifting rope fixing seat and the ratchet suspender and is connected with the suspender connecting piece.

Among the above-mentioned technical scheme, the jib connecting piece includes extension rod base, ratchet jib fixing base and two parallel relative fixed stop, two parallel relative fixed stop one end with the extension rod base links to each other, the other end with the ratchet jib fixing base links to each other, the extension rod base is fixed on the extension rod, the ratchet jib fixing base is fixed on the ratchet jib.

In the technical scheme, a crank mechanism is further arranged on the two parallel and opposite fixed baffles, and comprises a lifting rope base, a lifting rope pressing plate, a ratchet baffle, a ratchet wheel clamping seat torsion spring, a crank gear, crank clamping teeth, a crank ejecting bead, a crank cover and a cover plate;

one end of the lifting rope base sequentially penetrates through the two fixed baffle plates and is supported on the two fixed baffle plates, and the other end of the lifting rope base is exposed outside the two fixed baffle plates;

the lifting rope pressing plate is arranged on the lifting rope base and is positioned between the two fixed baffle plates, and the lifting rope pressing plate is matched with the lifting rope base and is used for pressing the tail part of the insulated lifting rope;

the lifting rope base is sleeved with a ratchet baffle, a ratchet wheel and a crank gear from inside to outside in sequence at one end exposed outside the two fixed baffles, the crank and a crank cover are sleeved at two ends of the crank gear respectively, the crank is sleeved at one end of the crank gear facing the ratchet wheel, the crank cover is sleeved at one end of the crank gear departing from the ratchet wheel, the crank is connected with one end of the crank cover through a crank support A, and the other end of the crank is connected through a crank support B;

the ratchet wheel cassette is arranged below the ratchet wheel and is connected with the two fixed baffle plates through a ratchet wheel cassette support, the ratchet wheel cassette torsional spring is positioned between the ratchet wheel cassette and the fixed baffle plates and is sleeved on the ratchet wheel cassette support, one end of the ratchet wheel cassette torsional spring is connected with the fixed baffle plates, and the other end of the ratchet wheel cassette torsional spring is connected with the ratchet wheel cassette;

the crank latch is positioned between the crank and the crank cover and sleeved on the crank support B, the upper part of the crank latch is meshed with the crank gear, the lower part of the crank latch is abutted against the crank top bead, and the crank top bead is fixed on the crank;

the cover plate is arranged on the outer side of the crank cover and is fixedly connected with the lifting rope base through a screw;

in the technical scheme, the outer wall of one end of the lifting rope base exposed outside the two fixed baffles is provided with an external thread, the inner wall of the crank gear is provided with an internal thread, and the crank gear is in threaded fit connection with the external thread arranged on the outer wall of the lifting rope base through the internal thread on the inner wall.

Among the above-mentioned technical scheme, the jib supporting seat includes supporting seat owner and presss from both sides, the vice clamp of supporting seat, supporting seat separation blade A, supporting seat separation blade B, supporting seat eye bolt, supporting seat vaulting pole and supporting seat base, supporting seat separation blade A and supporting seat eye bolt divide to be established the both sides of the vice clamp of supporting seat owner clamp and supporting seat, and supporting seat separation blade A one end is inserted and is established on the vice clamp of supporting seat, and the other end is inserted and is established on the main clamp of supporting seat, and supporting seat eye bolt one end is passed through supporting seat separation blade B and is fixed on the vice clamp of supporting seat, and the other end is inserted and is established on the main clamp of supporting.

Compared with the prior art, the utility model has the advantages that:

(1) the porcelain insulator suspension arm is adopted to replace a glove operation method to replace a tension insulator, so that personnel do not need to contact the overhaul part in a short distance, most insulation shielding measures can be reduced, the construction time is greatly shortened, the complexity of overhaul operation is reduced, and the safety of the operating personnel is ensured;

(2) the strain insulator is prevented from being over-fatigued due to too heavy strain insulators in the operation process of operators, and the operation risk is greatly reduced.

Drawings

FIG. 1 is a structural diagram of the suspension arm of the porcelain bottle of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is an embodiment of a U-shaped hanger in the suspension arm of the porcelain bottle of the present invention;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a view showing an embodiment of a boom connector in a porcelain insulator boom of the present invention;

FIG. 6 is another perspective view of FIG. 5;

FIG. 7 is a front view of FIG. 5;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

FIG. 9 is an exploded view of FIG. 5;

FIG. 10 shows an embodiment of a hanging rope connector in the porcelain insulator boom of the present invention;

FIG. 11 is an exploded view of FIG. 10;

FIG. 12 is a perspective view of an embodiment of a hanger bar support base in the suspension arm of the porcelain insulator of the present invention;

FIG. 13 is an exploded view of FIG. 12;

description of reference numerals: 100. a ratchet suspension rod; 200. an extension rod; 300. a U-shaped hanging piece; 301. a U-shaped hanger; 302. a hanger stop lever; 303. a lifting ring screw; 304. hanging rack top beads; 305. a rack quick socket; 306. hanging plates on the hanging rack; 400. a boom linkage; 401. an extension rod base; 402. a ratchet wheel suspender fixing seat; 403. fixing a baffle plate; 404. fixing the baffle plate strut; 405. an extension rod bolt; 406. a ratchet boom screw; 407. a lifting rope base; 408. a lifting rope pressing plate; 409. a ratchet baffle; 410. a ratchet wheel; 411. a ratchet wheel cassette; 412. a ratchet card holder strut; 413. ratchet cassette torsional spring; 414. a crank; 415. a crank gear; 416. a crank latch; 417. a crank ejector bead; 418. a crank cover; 419. A cover plate; 420. a screw; 421. a crank support A; 422. a crank support B; 500. a lifting rope connecting piece; 501. a lifting rope fixing seat; 502. an insulating lifting rope; 503. hooking; 504. a rope roller; 600. a suspender supporting seat; 601. a main clamp of a supporting seat; 602. a support seat auxiliary clamp; 603. a supporting seat baffle A; 604. a supporting seat baffle B; 605. supporting the seat eye bolt; 606. a supporting seat supporting rod; 607. a supporting seat base.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, how to implement the present invention is further explained below with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and 2, the suspension arm for porcelain insulator provided by the present invention includes a ratchet suspension rod 100, an extension rod 200 and a U-shaped hanging member 300; the ratchet suspension rod 100 has one end connected to the extension rod 200 through the suspension rod connector 400 and the other end connected to the U-shaped suspension member 300 through the suspension rope connector 500, and the ratchet suspension rod 100 is further provided with a suspension rod support base 600, and the suspension rod support base 600 is used for fixing the ratchet suspension rod 100 to a pole cross arm (not shown) during a strain insulator replacement operation.

As an embodiment of the U-shaped suspension member 300 in the porcelain insulator suspension arm of the utility model: referring to fig. 3 and 4, the rack comprises a U-shaped rack 301, a rack blocking rod 302, a lifting ring screw 303, a rack top bead 304, a rack fast socket 305 and a rack hanging plate 306, wherein the rack blocking rod 302 is arranged at the open end of the U-shaped rack 301, one end of the rack blocking rod 302 is exposed outside one side of the open end of the U-shaped rack 301 and connected with the lifting ring screw 303, the other side of the rack blocking rod is extended inside the open end of the U-shaped rack 301, the rack top bead 304 is arranged on the rack blocking rod 302, the rack fast socket 305 is fixed at the bottom of the U-shaped rack 301, the rack hanging plate 306 is fixed outside the other side of the open end of the U-shaped rack 301, and the U-shaped rack 301 is connected with the ratchet suspension.

As an embodiment of the utility model discloses lifting rope connecting piece 500 in vase davit: referring to fig. 10 and 11, the rope-lifting device comprises a rope-lifting fixing seat 501, an insulating lifting rope 502, a hook 503 and a group of rope-lifting rollers 504, wherein each rope-lifting roller 504 is fixed on the rope-lifting fixing seat 501 through a pin, the rope-lifting fixing seat 501 is fixed on the ratchet suspension rod 100, one end of the insulating lifting rope 502 is connected with the hook 503, and the other end of the insulating lifting rope 502 is connected with the suspension rod connector 400 through two rope-lifting rollers 504 fixed on the rope-lifting fixing seat 501 and the ratchet suspension rod 100 in sequence.

As an embodiment of the utility model discloses jib connecting piece 400 in the vase davit: referring to fig. 5 to 9, the extension rod base 401, the ratchet suspension rod fixing seat 402 and two parallel fixing baffles 403 are included, one end of each of the two parallel fixing baffles 403 is connected to the extension rod base 401 through two fixing baffle supports 404, the other end of each of the two parallel fixing baffles is connected to the ratchet suspension rod fixing seat 402 through two fixing baffle supports 404, the extension rod base 401 is fixed to the extension rod 200 through an extension rod bolt 405, and the ratchet suspension rod fixing seat 402 is fixed to the ratchet suspension rod 100 through a ratchet suspension rod screw 406.

Specifically, in the present boom linkage 400 embodiment: a crank mechanism is further arranged on the two parallel and opposite fixed baffles 403, and as shown in fig. 8 and fig. 9, the crank mechanism comprises a lifting rope base 407, a lifting rope pressing plate 408, a ratchet baffle 409, a ratchet 410, a ratchet cassette 411, a ratchet cassette torsion spring 413, a crank 414, a crank gear 415, a crank latch 416, a crank top ball 417, a crank cover 418 and a cover plate 419;

wherein: one end of the lifting rope base 407 sequentially penetrates through the two fixed baffles 403 and is supported on the two fixed baffles 403, and the other end of the lifting rope base is exposed outside the two fixed baffles 403; the lifting rope pressing plate 408 is arranged on the lifting rope base 407 and located between the two fixed baffles 403, and the lifting rope pressing plate 408 is matched with the lifting rope base 407 and used for pressing the tail part of the insulated lifting rope 502;

the end of the lifting rope base 407 exposed outside the two fixed baffles 403 is sequentially sleeved with a ratchet baffle 409, a ratchet 410 and a crank gear 415 from inside to outside, two ends of the crank gear 415 are respectively sleeved with a crank 414 and a crank cover 418, wherein the crank 414 is sleeved on one end of the crank gear 415 facing the ratchet 410, the crank cover 418 is sleeved on one end of the crank gear 415 deviating from the ratchet 410, the upper end of the crank cover 418 is connected with the crank 414 through a crank support A421, and the lower end is connected through a crank support B422;

the ratchet cassette 411 is arranged below the ratchet 410 and is connected with the two fixed baffles 403 through a ratchet cassette support 412, the ratchet cassette torsion spring 413 is positioned between the ratchet cassette 411 and the fixed baffles 403 and is sleeved on the ratchet cassette support 412, one end of the ratchet cassette torsion spring 413 is hooked on the fixed baffles 403, and the other end is hooked on the ratchet cassette 411;

the crank latch 416 is positioned between the crank 414 and the crank cover 418 and is sleeved on the crank support B422, the upper part of the crank latch 416 is meshed with the crank gear 415, the lower part of the crank latch 416 is abutted against the crank top bead 417, and the crank top bead 417 is fixed on the crank 414;

the cover plate 419 is disposed outside the crank cover 418 and is fastened to the sling base 407 by screws 420.

More specifically, in the present boom linkage 400 embodiment: the outer wall of one end of the lifting rope base 407 exposed outside the two fixed baffles 403 is provided with an external thread (not shown in the figure), the inner wall of the crank gear 415 is provided with an internal thread (not shown in the figure), and the crank gear 415 is in threaded fit connection with the external thread arranged on the outer wall of the lifting rope base 407 through the internal thread on the inner wall.

As an embodiment of the utility model discloses jib supporting seat 600 in vase davit: referring to fig. 12 and 13, the support device includes a support base main clamp 601, a support base auxiliary clamp 602, a support base stopping piece a603, a support base stopping piece B604, a support base lifting bolt 605, a support base supporting rod 606 and a support base 607, wherein the support base stopping piece a603 and the support base lifting bolt 605 are respectively disposed at two sides of the support base main clamp 601 and the support base auxiliary clamp 602, one end of the support base stopping piece a603 is inserted into the support base auxiliary clamp 602, the other end is inserted into the support base main clamp 601, one end of the support base lifting bolt 605 is fixed on the support base auxiliary clamp 602 through the support base stopping piece B604, the other end is inserted into the support base main clamp 601, and the support base main clamp 601 is connected with the support.

In the utility model, the main body of the porcelain insulator suspension arm (namely, the ratchet suspension rod 100) is the main insulation part made of the epoxy resin insulation rod, the extension rod (namely, the extension rod 200) of the porcelain insulator suspension arm can be rapidly disassembled from the main body of the porcelain insulator suspension arm, the transportation is convenient, and the lifting and descending of the porcelain insulator are driven by the U-shaped hanging piece 300 when the tension insulator is replaced; the U-shaped hanger 300 is connected to the body of the ratchet suspension rod 100 through the insulating suspension rope 502 and the hook 503, the ratchet suspension rod 100 is inserted into the positioning column of the supporting base 607 through the supporting base stay 606 on the suspension rod supporting base 600, the supporting base 607 is fixed on the electric pole cross arm through the bolt, and is used for finding a proper position on the electric pole cross arm to provide a stable working platform for the ratchet suspension rod 100, the whole ratchet suspension rod 100 operates the crank mechanism to rotate through the insulating hook head operating rod, the rotation of the crank 414 in the crank mechanism is used for controlling the rotation of the ratchet 410, and the rotation of the ratchet 410 drives the tail of the insulating suspension rope 502 pressed by the suspension rope pressing plate 408 to roll up or release; when the tail of the insulated lifting rope 502 pressed by the lifting rope pressing plate 408 is rolled up, the insulated lifting rope 502 exposed outside the ratchet suspender 100 is shortened, so that the U-shaped suspender 300 is driven to ascend, and when the tail of the insulated lifting rope 502 pressed by the lifting rope pressing plate 408 is released, the insulated lifting rope 502 exposed outside the ratchet suspender 100 is extended, so that the U-shaped suspender 300 is driven to descend; the crank 414 is controlled to rotate only in one direction by the crank latch 416, so that the ratchet suspension rod 100 can be controlled to ascend or descend only in one direction in the use process, that is, the old tension insulator to be replaced is firstly suspended, and the new tension insulator to be replaced is then suspended, so that the whole operation process of replacing the tension insulator is completed.

The utility model provides an its installation steps of vase davit specifically as follows:

(1) assembling the U-shaped hanging piece 300: firstly, a U-shaped hanger 301 and a hanger hanging plate 306 are locked together by screws, then a hanger quick socket 305 and the U-shaped hanger 301 are fixed together by pins, then a hanger stop lever 302 penetrates into the U-shaped hanger 301 from a hole on the opening end of the U-shaped hanger 301, then a hanging ring screw 303 is locked on a thread on the head part of the hanger stop lever 302, and finally, hanger top beads 304 (two in number) are arranged in top bead holes (two in number) on the hanger stop lever 302 (the hanger top beads 304 can help the hanger stop lever 302 to be arranged on the U-shaped hanger 301 and then the position of the hanger can be controlled);

(2) assembly of boom connector 400: firstly, aligning a lifting rope base 407 with a round hole in the middle of a fixed baffle 403 and installing the lifting rope base 407 between two fixed baffles 403, then placing four fixed baffle supports 404 corresponding to four holes of the fixed baffle 403 between the two fixed baffles 403, aligning a ratchet hanger fixing seat 402 and an extension rod base 401 with four holes of the fixed baffle 403 respectively, using screws to penetrate through the four holes of the fixed baffle 403 to match with the fixed baffle supports 40 to lock the ratchet hanger fixing seat 402 and the extension rod base 401 with the two fixed baffles 403, then aligning the holes of a torsion spring 413 and a ratchet clamping seat 411 with a small hole below the fixed baffle 403, using screws to penetrate through the small hole below the fixed baffle 403 to match with a ratchet clamping seat support 412 to lock the ratchet clamping seat 411 on the fixed baffle 403 without hindering the rotation of the ratchet clamping seat 411 under the torsion force of a clamping seat spring 413, then sleeving the ratchet clamping seat 409 on a part of the lifting rope base 407 exposed out of the fixed baffle 403, then, the ratchet 410 with an O-shaped ring arranged inside is sleeved outside the ratchet baffle 409, then the crank top bead 417 is arranged on the crank 414, then the crank support A421 is aligned with a small hole above the crank 414 and is arranged well, then the crank gear 415 is aligned with a hole in the middle of the crank 414 and is arranged well, then the crank latch 416 is arranged between the crank gear 415 and the crank top bead 417, then the crank cover 418 is aligned with a hole position of the crank 414 and presses the crank gear 415, the crank cover 418 and the crank 414 are fixed together through the crank support A421 and the crank support B422, at this time, the crank 414 and the crank cover 418 are fixedly installed on the exposed threaded end part of the sling base 407 through the threads in the crank gear 415 (the crank gear 415 can retreat along the threads on the sling base 40 to press the ratchet 409 by rotating the crank 414), and finally, the cover plate 419 is installed on the outermost surface of the exposed threaded end part of the sling base 407 and is locked with the sling base 407 through the screw 420;

(3) assembling the suspender support seat 600: one end of a support seat baffle A60 is inserted into an insertion opening on the left side of a support seat main clamp 601, the other end of the support seat baffle A60 is inserted into an insertion opening on the left side of a support seat auxiliary clamp 602, then one end of a support seat eye bolt 605 is fastened on the insertion opening on the right side of the support seat auxiliary clamp 602 through a support seat baffle B604 and a screw, the other end of the support seat eye bolt is inserted into the insertion opening on the left side of the support seat main clamp 601, then one end of a support seat support rod 606 is inserted into a positioning hole;

(3) assembling the boom support base 600 with the ratchet boom 100: opening a supporting seat eye bolt 605 on the suspender supporting seat 600 to open a clamping opening between the supporting seat main clamp 601 and the supporting seat auxiliary clamp 602, then inserting the ratchet suspender 100 into the clamping opening between the supporting seat main clamp 601 and the supporting seat auxiliary clamp 602, and locking the supporting seat eye bolt 605 after the supporting seat main clamp 601 and the supporting seat auxiliary clamp 602 move to proper positions along the ratchet suspender 100 so as to close the clamping opening between the supporting seat main clamp 601 and the supporting seat auxiliary clamp 602;

(4) assembling the boom linkage 400 with the ratchet boom 100: the bottom of the boom linkage 400 is inserted into the ratchet boom mount 402 and locked by the ratchet boom screw 406;

(5) assembling the hoist rope connection 500 with the ratchet boom 100: firstly, fixing a lifting rope fixing seat 501 of a lifting rope connecting piece 500 on the top of a ratchet suspension rod 100 through a screw, then installing two lifting rope rollers 504 on the lifting rope fixing seat 501 through pins, then sewing one end of an insulating lifting rope 502 with a hook 503 through a line, pulling the other end of the insulating lifting rope 502 to a lifting rope base 407 through the position between the two lifting rope rollers 504 and a hole position in the middle of the ratchet suspension rod 100 in sequence, and finally pressing the insulating lifting rope 502 on the lifting rope base 407 through a lifting rope pressing plate 408 and locking the insulating lifting rope with a screw;

(6) assembling the hoist rope coupling 500 with the clevis 300: hanging the U-shaped hanger 301 of the U-shaped hanger 300 on the hook 503 of the lifting rope connecting piece 500;

(7) assembling the extension pole 200 with the boom linkage 400: inserting the bottom of the extension rod 200 into the extension rod base 401 and locking by the extension rod bolt 405;

thus, the whole installation process of the porcelain insulator suspension arm is completed.

When adopting the utility model provides a when the vase davit carries out strain insulator and changes the operation, its operation process specifically operates as follows:

firstly, fixing a ratchet suspension rod 100 of a porcelain insulator suspension arm on a ratchet suspension rod fixing seat 402 of a suspension rod connector 400 through a ratchet suspension rod screw 406, fixing an extension rod 200 of the porcelain insulator suspension arm on an extension rod base 401 of the suspension rod connector 400 through an extension rod bolt 405, opening a supporting seat eye bolt 605 of a suspension rod supporting seat 600 to reduce the clamping force between a supporting seat main clamp 601 and a supporting seat auxiliary clamp 602, moving the suspension rod supporting seat 600 to a proper working position, and locking the supporting seat eye bolt 605 to tightly clamp the suspension rod supporting seat 600 on the ratchet suspension rod 100; then the supporting seat base 607 of the suspender supporting seat 600 is locked to a proper position on the electric pole cross arm (not shown in the figure) through a bolt, and finally the whole porcelain insulator suspension arm is lifted to the position of the supporting seat base 607 through the extension rod 200 of the porcelain insulator suspension arm held by an operator, so that the supporting seat supporting rod 606 is inserted into the positioning hole of the supporting seat base 607, and the preparation work of replacing the insulator is completed.

After the porcelain insulator suspension arm is installed and fixed, firstly hooking circular rings on two sides of a crank latch 416 through an insulating hook head operating rod (not shown in the figure) to adjust the crank latch 416 to a proper position, and clamping a crank gear 415 through the crank latch 416 to control the crank 414 to rotate only in a single direction; then the crank 414 is hooked by the insulating hook head operating rod to rotate the crank 414, when the crank 414 rotates, the crank top bead 417 props against the crank latch 416 to prevent the crank latch 416 from moving, meanwhile, when the crank 414 rotates, the crank gear 415 is pushed to rotate by the crank latch 416, the crank gear 415 moves backwards along the thread on the lifting rope base 407 and is slowly close to the ratchet 410, the ratchet 410 is tightly pressed on the ratchet baffle 409 through an O-shaped ring (not shown in the figure) arranged in the ratchet 410, and at the moment, the ratchet baffle 409 also rotates under the action of friction force between the O-shaped ring in the ratchet 410 and the ratchet baffle 409; because the ratchet baffle 409 is sleeved on the lifting rope base 407 through a square hole, the lifting rope base 407 is driven to rotate when the ratchet baffle 409 rotates, and the tail part of the insulating rod lifting rope 502 is locked on the lifting rope base 407 through the lifting rope pressing plate 408 and the screw, when the lifting rope base 407 rotates, the insulating lifting rope 502 is slowly rolled up or put down, so that the U-shaped hanger 301 slowly drives the insulator to rise or fall to a proper position, and the insulator replacement operation is completed.

Wherein, because the ratchet cassette 411 is arranged below the ratchet wheel 410, and the ratchet cassette 411 can be clamped in the ratchet of the ratchet wheel 410 under the torsion action of the ratchet cassette spring 413, so that the ratchet wheel 410 can only rotate when the insulating lifting rope 502 is rolled up, the purpose of the arrangement can prevent the ratchet wheel 410 from reversely rotating to drive the lifting rope base 407 to reversely rotate, and further the insulating lifting rope 502 is released under the gravity of the tension insulator to fall back to cause an accident.

A. When the insulating lifting rope 502 is to be lifted to lift the tension insulator, the insulating hook head operating rod hooks the circular rings on the two sides of the crank latch 416 to move the insulating hook head operating rod to a proper position, so that the insulating hook head operating rod clamps the crank gear 415 to control the crank 414 to rotate only in the forward direction (i.e. clockwise rotation or anticlockwise rotation), then the crank 414 is hooked by the insulating hook head operating rod to rotate the crank 414, the crank gear 415 is driven to rotate by the crank 414, the ratchet 410 is slowly pressed by the crank gear 415, so that the ratchet baffle 409 rotates under the action of the friction force between the O-shaped ring inside the ratchet 410 and the ratchet baffle 409, and finally the lifting rope base 407 is driven to rotate by the ratchet baffle 409 to slowly roll up the tail part of the insulated lifting rope 502 pressed by the lifting rope pressing plate 408, at this time, the insulating lifting rope 502 exposed outside the ratchet suspension rod 100 is shortened, so that the U-shaped hanger 301 with the tension insulator slowly rises;

B. when the insulating lifting rope 502 is to fall back to put down the tension insulator, the ring on both sides of the crank latch 416 is hooked by the insulating hook operating rod to move to the position opposite to the crank latch 416 in the above-mentioned a, thus, the handle 414 can only be rotated in reverse by the handle latch 416, and by rotating the handle 414, the handle gear 415 will slowly rotate in forward direction along the threads on the hoist rope gear 407 and release the ratchet 410, when the handle gear 415 is rotated forward to the top of the thread on the hoist rope gear 407, the handle 414 now bears against the cover plate 419, after the cover plate 419 is pushed by the crank 414, the crank 414 rotates reversely to drive the sling base 407 to rotate reversely, the tail of the insulated sling 502 pressed by the sling pressing plate 408 is slowly released, at this time, the insulated lifting rope 502 exposed outside the ratchet suspension rod 100 is slowly extended by the weight of the tension insulator and slowly falls down together with the U-shaped hanger 301.

Finally, the above description is only the embodiments of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (7)

1. The utility model provides a vase davit which characterized in that: include ratchet jib (100), extension rod (200) and U type pendant (300), ratchet jib (100) one end is passed through jib connecting piece (400) and is linked to each other with extension rod (200), and the other end passes through lifting rope connecting piece (500) and links to each other with U type pendant (300) still press from both sides on ratchet jib (100) and be equipped with jib supporting seat (600), jib supporting seat (600) are used for with ratchet jib (100) are fixed on the pole cross arm.

2. A porcelain insulator boom as claimed in claim 1, wherein: u type pendant (300) include U type stores pylon (301), stores pylon shelves pole (302), rings screw (303), stores pylon top pearl (304), the fast socket of stores pylon (305) and stores pylon link plate (306), stores pylon shelves pole (302) set up the open end at U type stores pylon (301), and stores pylon shelves pole (302) one end dew establish in the outside of U type stores pylon (301) open end one side to link to each other with rings screw (303), the opposite side stretches to establish the inside at U type stores pylon (301) open end, stores pylon top pearl (304) are installed on stores pylon shelves pole (302), the fast socket of stores pylon (305) is fixed in the bottom of U type stores pylon (301), the outside at the open end opposite side of U type stores pylon (301) is fixed to stores pylon link plate (306), U type stores pylon (301) through lifting rope connecting piece (500) with ratchet jib (100) link to each other.

3. A porcelain insulator boom as claimed in claim 2, wherein: the lifting rope connecting piece (500) comprises a lifting rope fixing seat (501), an insulating lifting rope (502), a hook (503) and a group of lifting rope rollers (504), wherein the group of lifting rope rollers (504) are fixed on the lifting rope fixing seat (501), the lifting rope fixing seat (501) is fixed on the ratchet lifting rod (100), one end of the insulating lifting rope (502) is connected with the hook (503), and the other end of the insulating lifting rope (502) sequentially penetrates through the two lifting rope rollers (504) fixed on the lifting rope fixing seat (501) and the ratchet lifting rod (100) and is connected with the lifting rod connecting piece (400).

4. A porcelain insulator boom as claimed in claim 3, wherein: boom connecting piece (400) includes extension rod base (401), ratchet boom fixing base (402) and two parallel relative fixed stop (403), two parallel relative fixed stop (403) one end with extension rod base (401) link to each other, the other end with ratchet boom fixing base (402) link to each other, extension rod base (401) are fixed on extension rod (200), ratchet boom fixing base (402) are fixed on ratchet boom (100).

5. A porcelain insulator boom as claimed in claim 4, wherein: the two parallel and opposite fixed baffles (403) are also provided with a crank mechanism, and the crank mechanism comprises a lifting rope base (407), a lifting rope pressing plate (408), a ratchet baffle (409), a ratchet wheel (410), a ratchet wheel cassette (411), a ratchet wheel cassette torsion spring (413), a crank (414), a crank gear (415), crank latch (416), a crank top bead (417), a crank cover (418) and a cover plate (419);

one end of the lifting rope base (407) sequentially penetrates through the two fixed baffles (403) and is supported on the two fixed baffles (403), and the other end of the lifting rope base is exposed outside the two fixed baffles (403);

the lifting rope pressing plate (408) is arranged on the lifting rope base (407) and is positioned between the two fixed baffles (403), and the lifting rope pressing plate (408) is matched with the lifting rope base (407) and is used for pressing the tail part of the insulating lifting rope (502);

a ratchet baffle (409), a ratchet wheel (410) and a crank handle gear (415) are sequentially sleeved on one end of the lifting rope base (407) exposed outside the two fixed baffle plates (403) from inside to outside, the crank handle (414) and a crank handle cover (418) are respectively sleeved on two ends of the crank handle gear (415), wherein the crank handle (414) is sleeved on one end of the crank handle gear (415) facing the ratchet wheel (410), the crank handle cover (418) is sleeved on one end of the crank handle gear (415) departing from the ratchet wheel (410), one end of the crank handle (414) and one end of the crank handle cover (418) are connected through a crank handle support A (421), and the other end of the crank handle cover is connected through a crank handle support B (422);

the ratchet wheel cassette (411) is arranged below the ratchet wheel (410) and is connected with the two fixed baffles (403) through a ratchet wheel cassette support (412), the ratchet wheel cassette torsion spring (413) is positioned between the ratchet wheel cassette (411) and the fixed baffles (403) and is sleeved on the ratchet wheel cassette support (412), one end of the ratchet wheel cassette torsion spring (413) is connected with the fixed baffles (403), and the other end of the ratchet wheel cassette torsion spring is connected with the ratchet wheel cassette (411);

the crank latch (416) is positioned between the crank (414) and the crank cover (418) and sleeved on the crank support B (422), the upper part of the crank latch (416) is meshed and connected with the crank gear (415), the lower part of the crank latch (416) is abutted against a crank top bead (417), and the crank top bead (417) is fixed on the crank (414);

the cover plate (419) is arranged at the outer side of the crank cover (418) and is fixedly connected with the lifting rope base (407) through a screw (420).

6. A porcelain insulator boom as claimed in claim 5, wherein: the outer wall of one end of the lifting rope base (407) exposed outside the two fixed baffles (403) is provided with an external thread, the inner wall of the crank gear (415) is provided with an internal thread, and the crank gear (415) is in threaded fit connection with the external thread arranged on the outer wall of the lifting rope base (407) through the internal thread on the inner wall.

7. A porcelain insulator boom as claimed in claim 1, wherein: boom support seat (600) includes supporting seat owner and presss from both sides (601), supporting seat vice clamp (602), supporting seat separation blade A (603), supporting seat separation blade B (604), supporting seat eye bolt (605), supporting seat vaulting pole (606) and supporting seat base (607), supporting seat separation blade A (603) and supporting seat eye bolt (605) are established separately the both sides of supporting seat owner clamp (601) and supporting seat vice clamp (602), and supporting seat separation blade A (603) one end is inserted and is established on supporting seat vice clamp (602), and the other end is inserted and is established on supporting seat owner clamp (601), and supporting seat eye bolt (605) one end is passed through supporting seat separation blade B (604) and is fixed on supporting seat vice clamp (602), and the other end is inserted and is established on supporting seat owner clamp (601), supporting seat owner clamp (601) through vaulting pole (606) with supporting seat base (607) link to each other.

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