CN204571816U - Maintenance high-tension line ladder - Google Patents

Abstract

A kind of maintenance high-tension line ladder, its bearing is fixed with ear seat, rotational pin engaging lug seat and rotation seat, adjust the angle of bearing and rotation seat with gravity cone and lock with lock bolt, the inner conical surface of the male cone (strobilus masculinus) of supporter and the Inner taper hole of rotation seat or below the Inner taper hole of a supporter coordinates and fixes, and Inner taper hole is coordinated and the be automatically locked inner conical surface and male cone (strobilus masculinus) that post with the locking end of directly turning by the annular lock groove on inner conical surface after coordinating with male cone (strobilus masculinus) and fixing.Be fixed with the foot-operated of the folding that can draw in one end of the connector of supporter in the both sides of the damaged surface of supporter, be stained with skid-proof rubber in the bottom of bearing.The structure of maintenance high-tension line ladder is simple, assemble and use very convenient, being easy to carry, in assembly and disassembly process during use, not needing instrument, the difficult problem of uprightly climbing and standing when solving maintenance high-tension line, during climbing, the speed of assembling ladder is fast, safe and reliable, climbing is convenient; After using, dismounting, packaging and convenient transportation.

Description

Maintenance high-tension line ladder

Technical field

The utility model relates to a kind of maintenance high-tension line ladder uprightly climbed when keeping in repair high-tension line for high-tension line maintenance personal.

Background technology

Near the conveying circuit of high-tension electricity plant be implanted with trees, along with the growth of trees, its limb from high-voltage line very close to, sometimes even contact with high-voltage line, need the limb of artificial pruning trees to protect high-tension line; Because not upright climbing is to the instrument of the height of branch, the way of high-tension line maintenance personal is that whole for trees is cut down, and compromises green environment, is unfavorable for environmental protection.When the maintenance of high-voltage line, first maintainer climbs up electric pole, then climbs up high-voltage line, stands in or lie prone to check on high-voltage line and to be fastenedly connected nut, but high-voltage line is unstable, often causes maintenance accident.

Summary of the invention

The object that the utility model relates to is beneficial to provide a kind of the maintenance high-tension line ladder carrying, be convenient to lay, assemble and climb.

For achieving the above object, maintenance high-tension line ladder described in the utility model mainly comprises bearing, ear seat, rotational pin, lock bolt, rotation seat, gravity cone, supporter, male cone (strobilus masculinus), Inner taper hole, inner conical surface, self-locking device;

Described maintenance high-tension line ladder is the ladder of single column support type, and the cylinder supporting ladder is supporter, has foot-operated in the both sides of supporter;

Described bearing is fixed with ear seat, ear seat there are pin-and-hole and locking screw, rotational pin links together ear seat and rotation seat through after the pin-and-hole of the pin-and-hole on ear seat and rotation seat bottom, and the lower part that lock bolt exceedes the lock bolt of locking screw screw end after screwing in the locking screw on ear seat is pressed in rotation seat locks the fit angle of rotation seat and bearing.Inner taper hole is had above described rotation seat, the inner conical surface of Inner taper hole there is annular lock groove, below Inner taper hole or the inside have air gap hole, rotation seat is coordinated with the male cone (strobilus masculinus) of supporter lower end and is fixed by Inner taper hole, and is being coordinated and the be automatically locked inner conical surface and male cone (strobilus masculinus) that post with the annular lock groove on inner conical surface by the locking end exposing male cone (strobilus masculinus) after passing male cone (strobilus masculinus) of directly turning in the self-locking hole that is arranged on pillar bottom; Being provided with in the outside of the Inner taper hole part of rotation seat lives turns hole, and the taper shank of the upper end of gravity cone inserts to live and to turn in hole fixing and turns in hole and can freely rotate living.Inner taper hole is had in the connection head end of supporter upper end, the inner conical surface of Inner taper hole there is annular lock groove, below Inner taper hole or the inside have air gap hole, the male cone (strobilus masculinus) of supporter lower end inserts in the Inner taper hole in the connector of a supporter below, coordinated with the male cone (strobilus masculinus) of supporter lower end by Inner taper hole and fix, and being coordinated and the be automatically locked inner conical surface and male cone (strobilus masculinus) that post with the annular lock groove on inner conical surface through the locking end exposing male cone (strobilus masculinus) after male cone (strobilus masculinus) by directly turning in the self-locking hole that is arranged on pillar bottom; Be fixed with the foot-operated of the folding that can draw in one end of the connector of supporter in the both sides of the damaged surface of supporter, foot-operated upper cover has or is stained with skid-proof rubber.

Described supporter has the lower end of male cone (strobilus masculinus) to insert in the Inner taper hole in the middle part of rotation seat, or, supporter has the lower end of male cone (strobilus masculinus) to insert in the Inner taper hole in the connector of a supporter upper end below, inner conical surface there is annular lock groove coordinate with the locking end of directly turning, then lock coordinating of inner conical surface and male cone (strobilus masculinus).

Described Inner taper hole is the hole having tapering, has inner conical surface in Inner taper hole, inner conical surface has the annular lock groove of depression.Inner taper hole on described rotation seat coordinates with the male cone (strobilus masculinus) of the lower end of pillar and fixes, and the Inner taper hole on connector coordinates with the male cone (strobilus masculinus) of the lower end of another root pillar and fixes; Described Inner taper hole is coordinated and the be automatically locked inner conical surface and male cone (strobilus masculinus) that post with the locking end of directly turning by the annular lock groove on inner conical surface after coordinating with male cone (strobilus masculinus) and fixing.In order to enable Inner taper hole and male cone (strobilus masculinus) close fit, the tapering of described Inner taper hole is consistent with the tapering of male cone (strobilus masculinus).

Described self-locking device comprises self-locking hole, draws pin, thrust spring, directly turn, annular lock groove, the hole of described self-locking hole right angle turns shape, the damaged surface that the surface of male cone (strobilus masculinus) is worn out in one end on the cylinder of the pillar near male cone (strobilus masculinus), the other end wears out column, the center line of self-locking hole and the central axis or parallel of column body; Be provided with in self-locking hole directly turn, thrust spring and draw pin, directly to turn the end being fixed on and drawing pin, one end of thrust spring is pressed in the pressing portion of directly turning, the other end withstands on self-locking hole, draw one end of the pin handle of pin vertically to stretch out from the damaged surface of column after the central part of thrust spring passes, the locking end of directly turning stretches out from male cone (strobilus masculinus); The part that described thrust spring is arranged on the middle aperture of self-locking hole large is enclosed within the middle part of drawing pin, on the wall of the part that the middle aperture that one end is pressed in the pressing portion of directly turning, the other end withstands on self-locking hole is large or withstand on be fixed on the part of drawing the aperture of the self-locking hole of one end of the pin handle of pin little jump ring on; Thrust spring is pressed in the locking end that the pressing portion of directly turning promotes directly to turn and coordinates and the be automatically locked inner conical surface and male cone (strobilus masculinus) that post with the annular lock groove on inner conical surface.

Described bearing is disking body or is in strip interconnection shape, disking body or be in strip interconnection shape middle part be above fixed with ear seat, at disking body or be in strip below interconnection shape and be stained with skid-proof rubber; Described bearing is used for fixed ear base, steady brace and supporting strut and bears all wt that ear seat bears, and prevents the lower end of supporter to be absorbed in earth; Described skid-proof rubber is fixed on disking body or is in strip below interconnection shape, prevents bearing from sliding on the ground with ground resulting in friction.

Described ear seat supports and installs the supporter of rotational pin, supporter has pin-and-hole and locking screw, and pin-and-hole is for installing and fixing rotational pin bear all wt that rotational pin bears.

Near the pin-and-hole of described locking screw on ear seat, for assembling lock bolt and purl screw can be rotated in locking screw, the screw end of lock bolt is made to be pressed in the lower part locking rotation seat of rotation seat and the fit angle of bearing.

Described lock bolt is screw, can rotate in locking screw, produces and rub and play locking effect when screw end contacts with the lower part of rotation seat.

Described rotational pin is pivot pin or bolt, bears for engaging lug seat and rotation seat all wt that rotation seat bears.

Described rotation seat is Connection Block, lower part has horizontal pin-and-hole, and there is Inner taper hole the upper end of upper part, and the inner conical surface of Inner taper hole has the annular lock groove of depression, and there is air gap hole below Inner taper hole or the inside, Inner taper hole and air gap hole directly through; The center line of described pin-and-hole is with the central axis of Inner taper hole or close to vertical; Being provided with in the outside of the Inner taper hole part of rotation seat lives turns hole, and the hole that turns alive being circular hole, boring for installing gravity; Being connected with ear seat below by rotational pin of rotation seat, be connected with pillar by Inner taper hole above; Described rotation seat is used for all wt that steady brace and supporting strut and pillar bear.

Described gravity cone is the vertical bar with taper shank, and taper shank is vertical with vertical bar, and taper shank inserts to live and turns fixing in hole and turn in hole can freely rotate alive; Described gravity cone for directly observe supporter and the ground be arranged on rotation seat angle and as adjusting supporter perpendicular to reference object during horizontal plane.

Described gravity cone can fit together forming unit entirety with rotation seat, is convenient to the combination assembling of special pruning garden ladder.

Described supporter is the cylinder that there is male cone (strobilus masculinus) one end, the other end has Inner taper hole, comprises connector and pillar two parts, is fixed with the foot-operated of the folding that can draw in one end of the connector of supporter in the both sides of the damaged surface of supporter; Described supporter is that connector and pillar are fixed together the entirety formed or the entirety be inherently connected; Pillar does not have one end of male cone (strobilus masculinus) and connector not to have one end of Inner taper hole to be connected or is fixed together to form entirety.The end face of the upper end of described connector has Inner taper hole, and there is air gap hole the inside of Inner taper hole, and the inner conical surface of Inner taper hole has the annular lock groove of depression; There is male cone (strobilus masculinus) the lower end of described pillar, the cylinder of the pillar near male cone (strobilus masculinus) has the self-locking hole of right angle turns shape, the surface of male cone (strobilus masculinus) is worn out in one end of self-locking hole, the other end wears out pillar damaged surface, the center line of self-locking hole and the central axis of supporter or parallel.

Described foot-operatedly comprise hanger, connecting pin and riding boogie board, hanger is the connector having pin-and-hole be fixed on supporter, connecting pin is the pin connecting hanger and riding boogie board, riding boogie board is the square or flat cylinder or blocks stepped on for pin, be stained with skid-proof rubber on the surface of riding boogie board or have antiskid glue sleeve at the surface of riding boogie board cover, the skid-proof rubber on foot-operated plays and prevents from riding up anti-skidding effect.

Described annular lock groove is the cannelure of the depression on the inner conical surface of the Inner taper hole on rotation seat and the Inner taper hole on supporter, and cannelure is dovetail groove, corresponding with the position of self-locking hole, and the one side near the oral area of Inner taper hole is locking face; Described locking face is used for coordinating with facing directly of the locking end of directly turning and producing locking effect.

Described self-locking hole is independent cavity, one end of male cone (strobilus masculinus) is had at supporter, it is the hole of right angle turns shape, the center line in hole and the central axis of supporter or parallel, at male cone (strobilus masculinus) with in the cylinder of the pillar of male cone (strobilus masculinus), the surface of the cylinder near male cone (strobilus masculinus) is worn out perpendicular to the center line of supporter in the one end in hole, the other end wears out male cone (strobilus masculinus) perpendicular to the center line of supporter; In independent cavity, be inlaid with the housing with the mating shapes of self-locking hole, housing exposes or does not expose the damaged surface of supporter in self-locking hole; When housing exposes the damaged surface of supporter, the one end of exposing the damaged surface of supporter connects with screw or rivets or be welded on the damaged surface of supporter; When housing does not expose the damaged surface of supporter, connect with screw or rivet or weld or be fixed in self-locking hole with jump ring; The inside and outside two ends of described housing manufacture porose, be provided with in housing and draw pin, thrust spring, directly turn, directly to turn the middle part being arranged on and drawing pin, thrust spring is arranged on directly to be turned and between housing, coordinates after the locking end of stretch out from the hole of housing outer face after drawing the pin handle of pin to pass from the centre of thrust spring, directly turning stretches out from the hole of the inner face of housing with annular lock groove.

Described draws pin and the association being an entirety or combining that directly turns, the turnover at a right angle of the global shape after installing shape.

The described pin that draws comprises pin portion and pin handle two parts, and the end winding support in pin portion is in the pressing portion of directly turning, and pin handle through the damaged surface of vertically stretching out supporter after thrust spring, draws pin to exit lock-bit groove for pulling directly to turn in self-locking hole.

Described directly turning is column or the blocks of right angle cross break shape, and comprise locking end and pressing portion, when installing in self-locking hole, pressing portion is parallel to the center line of supporter, and locking end stretches out the surface of male cone (strobilus masculinus) perpendicular to the center line of supporter; Locking effect is produced with the lock-bit slot fit in Inner taper hole after described locking end stretches out the surface of male cone (strobilus masculinus); Described pressing portion passes to locking end for accepting the thrust of thrust spring; The leading section of described locking end is the one side at the bottom of the cone of acute angle bevel, the toward the outside conical surface is face directly.

Described thrust spring is helical spring.

The conical surface comprises inner conical surface and male cone (strobilus masculinus), and the cross section of the conical surface is the circular conical surface, or the polygonal conical surface, or the conical surface of circular arc, or the special-shaped conical surface that circular arc and line segment form.

Rotational pin is adopted to be fastened on ear seat on bearing and rotation seat, make the rotation seat untie-sell that can rotate on bearing rotate certain angle, reach when bearing is arranged on the ground of inclination and ensure that the supporter be arranged on rotation seat keeps the object perpendicular to horizontal plane.

In order to make the assembling of maintenance high-tension line ladder quick, bearing, ear seat, rotational pin and rotation seat are the parts of entirety or the dispersion fitted together.

In order to can the locking inner conical surface of working good and male cone (strobilus masculinus) not loosen, described self-locking hole, directly turn, thrust spring and the locked inner conical surface of working good of annular lock groove composition locking system and male cone (strobilus masculinus).

In order to reduce costs and alleviate the weight of maintenance high-tension line ladder, the supporter of described maintenance high-tension line ladder adopts the mode of connecting to be combined into single with rotation seat and supporter with supporter and independently supports, and rotation seat and supporter are hollow body or solid; Supporter is individual layer or multilayer in the combination of ladder, and bearing and rotation seat are individual layers in the combination of ladder.

In order to ensure that supporter is all the time perpendicular to horizontal plane, adopt lock bolt to produce by rotation forces rotation seat and ear seat the angle angle that frictional force fixes rotation seat and bearing, when bearing is arranged on the ground of inclination, ensure that the supporter be arranged on rotation seat remains perpendicular to horizontal plane.

Bore to make gravity and can remain perpendicular to horizontal plane, the taper shank of described gravity cone is in the upper end of vertical bar, and the center of gravity that gravity is bored is lower than the position of taper shank.

In order in use can Rapid Combination and facilitate pin to step on, described supporter be combined into global facility with foot-operated, can assembly fast when being beneficial to use; The described fixing employing pin ridden on supporter is connected and fixed, and rides one end be merely able to connector on supporter and draws in, makes pin step down in landing downwards when riding upper.

The structure of the utility model maintenance high-tension line ladder is simple, manufacture, assemble and use very convenient, be easy to carry, instrument is not needed in assembly and disassembly process during use, solve the difficult problem of uprightly climbing and standing when high-tension line maintenance personal keeps in repair high-tension line, during climbing, the speed of assembling ladder is fast, safe and reliable, climbing is convenient; After using, dismounting, packaging and convenient transportation.

Accompanying drawing explanation

Fig. 1 is the package assembly schematic diagram of maintenance high-tension line ladder;

Fig. 2 is the structural representation of supporter;

Fig. 3 is the sectional structure schematic diagram of rotation seat;

Fig. 4 is the schematic appearance that bearing is connected with ear seat;

Fig. 5 is the schematic appearance that ear seat is connected with rotation seat and bearing.

Shown in figure: rotation seat 1, pillar 2, connector 3, air gap hole 4, self-locking hole 5, draw pin 6, directly turn 7, thrust spring 8, annular lock groove 9, male cone (strobilus masculinus) 10, inner conical surface 11, Inner taper hole 12, foot-operated 13, pin-and-hole 14, rotational pin 15, bearing 16, ear seat 17, lock bolt 18, gravity cone 19.

Detailed description of the invention

The utility model maintenance high-tension line ladder mainly comprises bearing 16, ear seat 17, rotational pin 15, lock bolt 18, rotation seat 1, gravity cone 19, supporter, male cone (strobilus masculinus) 10, Inner taper hole 12, inner conical surface 11, self-locking device;

Described maintenance high-tension line ladder is the ladder of single column support type, and the cylinder supporting ladder is supporter, has foot-operated 13 in the both sides of supporter;

Described bearing 16 is fixed with ear seat 17, ear seat 17 there are pin-and-hole 14 and locking screw, rotational pin 15 links together ear seat 17 and rotation seat 1 afterwards through the pin-and-hole 14 of the pin-and-hole 14 on ear seat 17 and rotation seat 1 bottom, and lock bolt 18 exceedes the lock bolt 18 of locking screw screw end after screwing in the locking screw on ear seat 17 is pressed in the lower part locking rotation seat 1 of rotation seat 1 and the fit angle of bearing 16.Inner taper hole 12 is had above described rotation seat 1, the inner conical surface 11 of Inner taper hole 12 there is annular lock groove 9, below Inner taper hole 12 or the inside have air gap hole 4, rotation seat 1 is coordinated with the male cone (strobilus masculinus) 10 of supporter lower end by Inner taper hole 12 and fixes, and 7 to be coordinated and the be automatically locked inner conical surface 11 and male cone (strobilus masculinus) 10 that post through exposing the locking end of male cone (strobilus masculinus) 10 after male cone (strobilus masculinus) 10 with the annular lock groove 9 on inner conical surface 11 by directly turning in the self-locking hole 5 that is arranged on pillar 2 bottom; Being provided with in the outside of Inner taper hole 12 part of rotation seat 1 lives turns hole, and the taper shank of the upper end of gravity cone 19 inserts to live and to turn in hole fixing and turns in hole and can freely rotate living.Inner taper hole 12 is had in connector 3 end of supporter upper end, the inner conical surface 11 of Inner taper hole 12 there is annular lock groove 9, below Inner taper hole 12 or the inside have air gap hole 4, the male cone (strobilus masculinus) 10 of supporter lower end inserts in the Inner taper hole 12 in the connector 3 of a supporter below, coordinated with the male cone (strobilus masculinus) 10 of supporter lower end by Inner taper hole 12 and fix, and 7 to be coordinated and the be automatically locked inner conical surface 11 and male cone (strobilus masculinus) 10 that post with the annular lock groove 9 on inner conical surface 11 through exposing the locking end of male cone (strobilus masculinus) 10 after male cone (strobilus masculinus) 10 by directly turning in the self-locking hole 5 that is arranged on pillar 2 bottom, be fixed with foot-operated 13 of the folding that can draw in one end of the connector 3 of supporter in the both sides of the damaged surface of supporter, on foot-operated 13, cover has or is stained with skid-proof rubber.

Described supporter has the lower end of male cone (strobilus masculinus) 10 to insert in the Inner taper hole 12 in the middle part of rotation seat 1, or, supporter has the lower end of male cone (strobilus masculinus) 10 to insert in the Inner taper hole 12 in the connector 3 of a supporter upper end below, inner conical surface 11 has annular lock groove 9 with directly turn 7 locking end coordinate, then lock coordinating of inner conical surface 11 and male cone (strobilus masculinus) 10.

Described Inner taper hole 12 is the holes having tapering, has inner conical surface 11 in Inner taper hole 12, inner conical surface 11 has the annular lock groove 9 of depression.Inner taper hole 12 on described rotation seat 1 coordinates with the male cone (strobilus masculinus) 10 of the lower end of pillar 2 and fixes, and the Inner taper hole 12 on connector 3 coordinates with the male cone (strobilus masculinus) 10 of the lower end of another root pillar 2 and fixes; After described Inner taper hole 12 coordinates with male cone (strobilus masculinus) 10 and fixes by the annular lock groove 9 on inner conical surface 11 with directly turn 7 locking end coordinate and the be automatically locked inner conical surface 11 and male cone (strobilus masculinus) 10 that post.In order to make Inner taper hole 12 and male cone (strobilus masculinus) 10 can close fit, the tapering of described Inner taper hole 12 be consistent with the tapering of male cone (strobilus masculinus) 10.

Described self-locking device comprises self-locking hole 5, draws pin 6, thrust spring 8, directly turn 7, annular lock groove 9, the hole of described self-locking hole 5 right angle turns shape, the damaged surface that the surface of male cone (strobilus masculinus) 10 is worn out in one end on the cylinder of the pillar 2 near male cone (strobilus masculinus) 10, the other end wears out column, the center line of self-locking hole 5 and the central axis or parallel of column body; Be provided with in self-locking hole 5 and directly turn 7, thrust spring 8 and draw pin 6, directly turn and 7 be fixed on the end of drawing pin 6, one end of thrust spring 8 be pressed in directly turn in the pressing portion of 7, the other end withstands on self-locking hole 5, draw one end of the pin handle of pin 6 vertically to stretch out from the damaged surface of column after the central part of thrust spring 8 passes, directly turn 7 locking end stretch out from male cone (strobilus masculinus) 10; The part that described thrust spring 8 is arranged on the middle aperture of self-locking hole 5 large is enclosed within the middle part of drawing pin 6, one end be pressed in directly turn in the pressing portion of 7, on the wall of part that middle aperture that the other end withstands on self-locking hole 5 is large or withstand on be fixed on the part of drawing the aperture of the self-locking hole 5 of one end of the pin handle of pin 6 little jump ring on; Thrust spring 8 be pressed in directly turn 7 pressing portion on the locking end of 7 that promotes directly to turn coordinate and the be automatically locked inner conical surface 11 and male cone (strobilus masculinus) 10 that post with the annular lock groove 9 on inner conical surface 11.

Described bearing 16 is disking bodies or is in strip interconnection shape, disking body or be in strip interconnection shape middle part be above fixed with ear seat 17, at disking body or be in strip below interconnection shape and be stained with skid-proof rubber; Described bearing 16 is for fixed ear base 17, steady brace 2 and supporting strut 2 and bear all wt that ear seat 17 bears, and prevents the lower end of supporter to be absorbed in earth; Described skid-proof rubber is fixed on disking body or is in strip below interconnection shape, prevents bearing 16 from sliding on the ground with ground resulting in friction.

Described ear seat 17 supports and installs the supporter of rotational pin 15, supporter has pin-and-hole 14 and locking screw, and pin-and-hole 14 is for installing and fixing rotational pin 15 bear all wt that rotational pin 15 bears.

Near the pin-and-hole 14 of described locking screw on ear seat 17, for assembling lock bolt 18 and purl screw can be rotated in locking screw, the screw end of lock bolt 18 is made to be pressed in the lower part locking rotation seat 1 of rotation seat 1 and the fit angle of bearing 16.

Described lock bolt 18 is screws, can rotate in locking screw, produces and rub and play locking effect when screw end contacts with the lower part of rotation seat 1.

Described rotational pin 15 is pivot pin or bolt, bears for engaging lug seat 17 and rotation seat 1 all wt that rotation seat 1 bears.

Described rotation seat 1 is Connection Block, lower part has horizontal pin-and-hole 14, there is Inner taper hole 12 upper end of upper part, and the inner conical surface 11 of Inner taper hole 12 has the annular lock groove 9 of depression, below Inner taper hole 12 or the inside has air gap hole 4, Inner taper hole 12 and air gap hole 4 directly through; The center line of described pin-and-hole 14 is with the central axis of Inner taper hole 12 or close to vertical; Being provided with in the outside of Inner taper hole 12 part of rotation seat 1 lives turns hole, and the hole that turns alive being circular hole, boring 19 for installing gravity; Being connected with ear seat 17 below by rotational pin 15 of rotation seat 1, be connected with pillar 2 by Inner taper hole 12 above; The all wt that described rotation seat 1 bears for steady brace 2 and supporting strut 2 and pillar 2.

Described gravity cone 19 is the vertical bars with taper shank, and taper shank is vertical with vertical bar, and taper shank inserts to live and turns fixing in hole and turn in hole can freely rotate alive; Described gravity cone 19 for directly observe supporter and the ground be arranged on rotation seat 1 angle and as adjusting supporter perpendicular to reference object during horizontal plane.

Described gravity cone 19 can fit together forming unit entirety with rotation seat 1, is convenient to the combination assembling of special pruning garden ladder.

Described supporter is the cylinder that there is male cone (strobilus masculinus) 10 one end, the other end has Inner taper hole 12, comprises connector 3 and pillar 2 two parts, is fixed with foot-operated 13 of the folding that can draw in one end of the connector 3 of supporter in the both sides of the damaged surface of supporter; Described supporter to be connector 3 with pillar 2 the be fixed together entirety formed or the entirety be inherently connected; Pillar 2 does not have one end of male cone (strobilus masculinus) 10 and connector 3 not to have one end of Inner taper hole 12 to be connected or is fixed together to form entirety.The end face of the upper end of described connector 3 has the inside of Inner taper hole 12, Inner taper hole 12 to have air gap hole 4, and the inner conical surface 11 of Inner taper hole 12 has the annular lock groove 9 of depression; There is male cone (strobilus masculinus) 10 lower end of described pillar 2, the cylinder of the pillar 2 near male cone (strobilus masculinus) 10 has the self-locking hole 5 of right angle turns shape, the surface of male cone (strobilus masculinus) 10 is worn out in one end of self-locking hole 5, the other end wears out pillar 2 damaged surface, the center line of self-locking hole 5 and the central axis of supporter or parallel.

Described foot-operated 13 comprise hanger, connecting pin and riding boogie board, hanger is the connector having pin-and-hole 14 be fixed on supporter, connecting pin is the pin connecting hanger and riding boogie board, riding boogie board is the square or flat cylinder or blocks stepped on for pin, be stained with skid-proof rubber on the surface of riding boogie board or have antiskid glue sleeve at the surface of riding boogie board cover, the skid-proof rubber on foot-operated 13 plays and prevents foot-operated 13 to get on anti-skidding effect.

Described annular lock groove 9 is cannelures of the depression on the inner conical surface 11 of the Inner taper hole 12 on rotation seat 1 and the Inner taper hole 12 on supporter, and cannelure is dovetail groove, corresponding with the position of self-locking hole 5, and the one side near the oral area of Inner taper hole 12 is locking face; Described locking face be used for directly turn 7 facing directly of locking end coordinate and produce locking effect; Described annular lock groove 9 for allow directly turn 7 locking end insert annular lock groove 9 time do not need consider insert angle, with directly turn 7 locking end coordinate and the locked inner conical surface 11 that posts and male cone (strobilus masculinus) 10, then the locked inner conical surface 11 that posts and male cone (strobilus masculinus) 10, and then make connector 3 and supporter and rotation seat 1 and supporter fixation.

Described self-locking hole 5 is independent cavitys, one end of male cone (strobilus masculinus) 10 is had at supporter, it is the hole of right angle turns shape, the center line in hole and the central axis of supporter or parallel, at male cone (strobilus masculinus) 10 with in the cylinder of the pillar 2 of male cone (strobilus masculinus) 10, the surface of the cylinder near male cone (strobilus masculinus) 10 is worn out perpendicular to the center line of supporter in the one end in hole, the other end wears out male cone (strobilus masculinus) 10 perpendicular to the center line of supporter; In independent cavity, be inlaid with the housing with the mating shapes of self-locking hole 5, housing exposes or does not expose the damaged surface of supporter in self-locking hole 5; When housing exposes the damaged surface of supporter, the one end of exposing the damaged surface of supporter connects with screw or rivets or be welded on the damaged surface of supporter; When housing does not expose the damaged surface of supporter, connect with screw or rivet or weld or be fixed in self-locking hole 5 with jump ring; The inside and outside two ends of described housing manufacture porose, be provided with in housing and draw pin 6, thrust spring 8, directly turn 7, directly turn and 7 be arranged on the middle part of drawing pin 6, thrust spring 8 is arranged on directly turns between 7 and housing, stretch out from the hole of housing outer face after drawing the pin handle of pin 6 to pass from the centre of thrust spring 8, directly turn 7 locking end stretch out from the hole of the inner face of housing after coordinate with annular lock groove 9.

Described draws pin 6 and 7 associations being an entirety or combining that directly turn, the turnover at a right angle of the global shape after installing shape.

The described pin 6 that draws comprises pin portion and pin handle two parts, and the end winding support in pin portion is directly being turned in the pressing portion of 7, and pin handle through the damaged surface of vertically stretching out supporter after thrust spring 8, draws pin 67 to exit lock-bit groove for pulling directly to turn in self-locking hole 5.

Described directly turning 7 is column or blocks of right angle cross break shape, and comprise locking end and pressing portion, when installing in self-locking hole 5, pressing portion is parallel to the center line of supporter, and locking end stretches out the surface of male cone (strobilus masculinus) 10 perpendicular to the center line of supporter; Locking effect is produced with the lock-bit slot fit in Inner taper hole 12 after described locking end stretches out the surface of male cone (strobilus masculinus) 10; Described pressing portion passes to locking end for accepting the thrust of thrust spring 8; The leading section of described locking end is the one side at the bottom of cone of acute angle bevel, the toward the outside conical surface 10 is face directly, directly to turn 7 retrogressings for allowing the oral area of the Inner taper hole 12 of connector 3 and the oblique promotion of inner conical surface 11 in the inclined-plane of locking end, facing directly for coordinating locked male cone (strobilus masculinus) 10 of working good and inner conical surface 11 with the annular groove limit of facing directly of lock-bit groove of locking end.

Described thrust spring 8 is helical springs, and for promoting directly to turn, the locking end of 7 coordinates with the annular lock groove 9 on male cone (strobilus masculinus) 10 and completes automatic locking.

Described air gap hole 4 is in the inside of Inner taper hole 12, not inconsistent with the bottom of Inner taper hole 12 when Inner taper hole 12 is inserted in male cone (strobilus masculinus) 10 end for pillar 2, is convenient to the close fit of inner conical surface 11 and male cone (strobilus masculinus) 10.

The conical surface comprises inner conical surface 11 and male cone (strobilus masculinus) 10, and the cross section of the conical surface is the circular conical surface, or the polygonal conical surface, or the conical surface of circular arc, or the special-shaped conical surface that circular arc and line segment form.

In order to can tilt ground on supported body, when bearing 16 is arranged on smooth ground, the central axis of rotation seat 1, in bearing 16, ensure that the supporter be arranged on rotation seat 1 is vertical or near perpendicular to horizontal plane; When bearing 16 is arranged on the ground of inclination, certain angle is rotated in rotation seat 1 untie-sell 15 that can rotate on bearing 16, ensure that the supporter be arranged on rotation seat 1 is vertical or near perpendicular to horizontal plane.

In order to make the assembling of maintenance high-tension line ladder quick, bearing 16, ear seat 17, rotational pin 15 and rotation seat 1 are the parts of entirety or the dispersion fitted together.

In order to can the locking inner conical surface 11 of working good and male cone (strobilus masculinus) 10 not loosen, described self-locking hole 5, directly turn 7, thrust spring 8 and annular lock groove 9 form the locked inner conical surface 11 of working good of locking system and male cone (strobilus masculinus) 10.

In order to reduce costs and alleviate the weight of maintenance high-tension line ladder, the supporter of described maintenance high-tension line ladder adopts the mode of connecting to be combined into single with rotation seat 1 and supporter with supporter and independently supports, and rotation seat 1 and supporter are hollow body or solid; Supporter is individual layer or multilayer in the combination of ladder, and bearing 16 and rotation seat 1 are individual layers in the combination of ladder.

In order to ensure that supporter is all the time perpendicular to horizontal plane, adopt lock bolt 18 to produce frictional force by rotation forces rotation seat 1 and ear seat 17 and fix rotation seat 1 and the angle angle of bearing 16, when bearing 16 is arranged on the ground of inclination, ensure that the supporter be arranged on rotation seat 1 remains perpendicular to horizontal plane.

Bore 19 to make gravity can remain perpendicular to horizontal plane, the taper shank of described gravity cone 19, in the upper end of vertical bar, makes the position of center of gravity lower than taper shank of gravity cone 19.

In order in use can Rapid Combination and facilitate pin to step on, described supporter be combined into global facility with foot-operated 13, can assembly fast when being beneficial to use; Described foot-operated 13 fixing employing pin on supporter are connected and fixed, and foot-operated 13 one end be merely able on supporter to connector 3 are drawn, downward landing when pin is stepped down on foot-operated 13.

The assemble method of maintenance high-tension line ladder: during assembling, A, place the bearing 16, ear seat 17, rotational pin 15 and the rotation seat 1 that fit together on the ground, bearing 16 on ground, rotation seat 1 is above, again the lower end of the pillar 2 having male cone (strobilus masculinus) 10 is inserted in the Inner taper hole 12 of rotation seat 1, under the effect of self gravitation, the male cone (strobilus masculinus) 10 of pillar 2 is naturally fitted with the inner conical surface 11 of rotation seat 1 and fixes, and the gravity depressed from pillar 2 is larger, it is closely and more more firm that inner conical surface 11 and male cone (strobilus masculinus) 10 are fitted, insert in the process of Inner taper hole 12 at the male cone (strobilus masculinus) 10 of pillar 2, during inner conical surface 11 position that the locking end of directly turning 7 enters into, the oblique promotion of inner conical surface 11 directly turn 7 the inclined-plane of locking end, make directly to turn 7 pressing portion compression thrust spring 8 and outside oblique yielding, when the male cone (strobilus masculinus) 10 of pillar 2 contacts firm with the inner conical surface 11 of the Inner taper hole 12 of rotation seat 1, the position of annular lock groove 9 is just in time entered after the inner conical surface 11 that the locking end of directly turning 7 slips over above annular lock groove 9 smoothly, directly turn 7 locking end enter under the powered of thrust spring 8 in annular lock groove 9, by directly turn 7 locking end face directly to coordinate with the locking face of trapezoidal annular lock groove 9 the inner conical surface 11 posted and male cone (strobilus masculinus) 10 locked after can not retreat, complete the fixing and locking of supporter and rotation seat 1.Point-blank whether the parallel lines of B, the center line of vertical bar observing gravity cone 19 and the center line of supporter, time not point-blank, the upper end of moving the supporter inserted on rotation seat 1 makes the parallel lines of the center line of supporter and gravity bore the center line of the vertical bar of 19 point-blank, lock bolt 18 again on rotational pin 15 compresses the lower part of rotation seat 1, rotation seat 1 untie-sell 15 that can not rotate is rotated, allow bearing 16 remain unchanged with the angle of rotation seat 1, ensure that the pillar 2 be arranged on above rotation seat 1 is perpendicular to horizontal plane; Time point-blank, the lower part of rotation seat 1 is compressed with regard to the lock bolt 18 on direct rotational pin 15, rotation seat 1 untie-sell 15 that can not rotate is rotated, allows bearing 16 remain unchanged with the angle of rotation seat 1, ensure that the pillar 2 be arranged on above rotation seat 1 is perpendicular to horizontal plane.One end of male cone (strobilus masculinus) 10 is again had by another root supporter to insert in the Inner taper hole 12 of connector 3 in Inner taper hole 12 in C, connector 3 again on supporter, under the effect of self gravitation, the male cone (strobilus masculinus) 10 of pillar 2 is naturally fitted with the inner conical surface 11 of connector 3 and fixes, and the gravity depressed from supporter is larger, it is closely and more more firm that inner conical surface 11 and male cone (strobilus masculinus) 10 are fitted, insert in the process of Inner taper hole 12 at the male cone (strobilus masculinus) 10 of pillar 2, during inner conical surface 11 position that the locking end of directly turning 7 enters into, the oblique promotion of inner conical surface 11 directly turn 7 the inclined-plane of locking end make directly to turn 7 pressing portion compression thrust spring 8 and outside oblique yielding, when the male cone (strobilus masculinus) 10 of pillar 2 contacts firm with the inner conical surface 11 of the Inner taper hole 12 of connector 3, the position of annular lock groove 9 is just in time entered after the inner conical surface 11 that the locking end of directly turning 7 slips over above annular lock groove 9 smoothly, directly turn 7 locking end enter under the powered of thrust spring 8 in annular lock groove 9, by directly turn 7 locking end face directly to coordinate with the locking face of trapezoidal annular lock groove 9 the inner conical surface 11 posted and male cone (strobilus masculinus) 10 locked after can not retreat, when the supporter composition of D, employing multilayer prunes gardens special-purpose ladder, repeat the male cone (strobilus masculinus) 10 again inserting pillar 2 in the Inner taper hole 12 of supporter upper end of step C, afterwards, the male cone (strobilus masculinus) 10 of supporter can insert in the Inner taper hole 12 of a supporter below by Using such method again, completes being connected and fixed and locking between supporter and supporter.The assembling of supporter and rotation seat 1 and supporter and supporter is very convenient, just can complete without any need for instrument.

The method for dismounting of maintenance high-tension line ladder: during the supporter of dismountable, pull the pin handle of pin 6, drive directly turn 7 locking end exit the annular lock groove 9 on inner conical surface 11 after, supporter upwards one is drawn or one lifts and automatically will separate with the Inner taper hole 12 in the connector 3 of the supporter of below, and the male cone (strobilus masculinus) 10 of supporter will separate automatically with the Inner taper hole 12 of the connector 3 of the supporter of below.During the supporter that dismounting rotation seat 1 is fixed, pull the pin handle of pin 6, after driving the locking end of 7 front ends of directly turning to exit the annular lock groove 9 on male cone (strobilus masculinus) 10, supporter upwards one is drawn or one lifts and automatically will separate with the Inner taper hole 12 of rotation seat 1, and supporter will separate automatically with rotation seat 1.The dismounting of supporter and rotation seat 1 and supporter and supporter is very convenient, just can complete without any need for instrument.

During high-tension line maintenance personal examination and repair for high-pressure circuit, run into when having branch Distance High Voltage Electricity Transfer very closely to need to prune or when line joint needs to overhaul, first the bearing 16 fitted together, ear seat 17, rotational pin 15 and rotation seat 1 are placed on the ground, after rotation seat 1 is plugged first supporter, point-blank whether the center line of vertical bar of observation gravity cone 19 and the parallel lines of the center line of supporter, time not point-blank, the upper end of moving the supporter inserting rotation seat 1 makes the parallel lines of the center line of supporter and gravity bore the center line of the vertical bar of 19 point-blank, screw lock bolt 18 again and compress rotation seat 1, rotation seat 1 untie-sell 15 that can not rotate is rotated, then all supporters on rotation seat 1 are made all to keep perpendicular to horizontal plane, again needing the supporter of height to take with oneself, pin steps down on foot-operated 13 on supporter and climbs up, one section can be climbed and assemble the supporter that a length of tape has foot-operated 13 again, when climbing to the top of ladder in the process of cat ladder, climb up again after inserting a supporter in superincumbent Inner taper hole 12 again.When having pruned descending stair after branch, pin has stepped down on foot-operated 13 and has down climbed, and next section tears a supporter open, very convenient.

Claims (6)

1. a maintenance high-tension line ladder, is characterized in that: described maintenance high-tension line ladder mainly comprises bearing (16), ear seat (17), rotational pin (15), lock bolt (18), rotation seat (1), gravity cone (19), supporter, male cone (strobilus masculinus) (10), Inner taper hole (12), inner conical surface (11), self-locking device;

Described maintenance high-tension line ladder is the ladder of single column support type, and the cylinder supporting ladder is supporter, has foot-operated (13) in the both sides of supporter;

Described bearing (16) is fixed with ear seat (17), ear seat (17) there are pin-and-hole (14) and locking screw, rotational pin (15) links together ear seat (17) and rotation seat (1) afterwards through the pin-and-hole (14) of the pin-and-hole (14) on ear seat (17) and rotation seat (1) bottom, lock bolt (18) exceedes the lock bolt (18) of locking screw screw end after screwing in the locking screw on ear seat (17) is pressed in lower part locking rotation seat (1) of rotation seat (1) and the fit angle of bearing (16), Inner taper hole (12) is had above described rotation seat (1), the inner conical surface (11) of Inner taper hole (12) there is annular lock groove (9), below Inner taper hole (12) or the inside have air gap hole (4), rotation seat (1) is coordinated by Inner taper hole (12) with the male cone (strobilus masculinus) (10) of supporter lower end and fixes, and coordinated and the be automatically locked inner conical surface (11) and male cone (strobilus masculinus) (10) that post with the annular lock groove (9) on inner conical surface (11) through exposing the locking end of male cone (strobilus masculinus) (10) after male cone (strobilus masculinus) (10) by directly turn (7) be arranged in the self-locking hole (5) of pillar (2) bottom, be provided with to live in the outside of Inner taper hole (12) part of rotation seat (1) and turn hole, the taper shank of the upper end of gravity cone (19) inserts to live and to turn in hole fixing and turns in hole and can freely rotate living, Inner taper hole (12) is had in connector (3) end in supporter upper end, the inner conical surface (11) of Inner taper hole (12) there is annular lock groove (9), below Inner taper hole (12) or the inside have air gap hole (4), the male cone (strobilus masculinus) (10) of supporter lower end inserts in the Inner taper hole (12) in the connector (3) of a supporter below, coordinate by Inner taper hole (12) with the male cone (strobilus masculinus) (10) of supporter lower end and fix, and coordinated and the be automatically locked inner conical surface (11) and male cone (strobilus masculinus) (10) that post with the annular lock groove (9) on inner conical surface (11) through exposing the locking end of male cone (strobilus masculinus) (10) after male cone (strobilus masculinus) (10) by directly turn (7) be arranged in the self-locking hole (5) of pillar (2) bottom, be fixed with in the both sides of the damaged surface of supporter foot-operated (13) of the folding that can draw in one end of the connector of supporter (3), foot-operated (13) upper cover has or is stained with skid-proof rubber,

Described supporter has the lower end of male cone (strobilus masculinus) (10) to insert in the Inner taper hole (12) at rotation seat (1) middle part, or, supporter has the lower end of male cone (strobilus masculinus) (10) to insert in the Inner taper hole (12) in the connector (3) of a supporter upper end below, inner conical surface (11) there is annular lock groove (9) coordinate with the locking end of directly turn (7), then lock coordinating of inner conical surface (11) and male cone (strobilus masculinus) (10);

Described Inner taper hole (12) is the hole having tapering, has inner conical surface (11) in Inner taper hole (12), inner conical surface (11) has the annular lock groove (9) of depression; Inner taper hole (12) on described rotation seat (1) coordinates with the male cone (strobilus masculinus) (10) of the lower end of pillar (2) and fixes, and the Inner taper hole (12) on connector (3) coordinates with the male cone (strobilus masculinus) (10) of the lower end of another root pillar (2) and fixes; Described Inner taper hole (12) is coordinated and the be automatically locked inner conical surface (11) and male cone (strobilus masculinus) (10) that post with the locking end of directly turn (7) by the annular lock groove (9) on inner conical surface (11) after coordinating with male cone (strobilus masculinus) (10) and fixing;

Described self-locking device comprises self-locking hole (5), draws pin (6), thrust spring (8), directly turn (7), annular lock groove (9), the hole of described self-locking hole (5) right angle turns shape, the damaged surface that the surface of male cone (strobilus masculinus) (10) is worn out in one end on the cylinder of the pillar (2) near male cone (strobilus masculinus) (10), the other end wears out column, the center line of self-locking hole (5) and the central axis or parallel of column body; Directly turn (7), thrust spring (8) are installed in self-locking hole (5) and draw pin (6), directly turn (7) be fixed on the end of drawing pin (6), one end of thrust spring (8) be pressed in directly turn in the pressing portion of (7), the other end withstands on self-locking hole (5), draw one end of the pin handle of pin (6) vertically to stretch out from the damaged surface of column after the central part of thrust spring (8) passes, the locking end of directly turn (7) stretches out from male cone (strobilus masculinus) (10); The part that described thrust spring (8) is arranged on the middle aperture of self-locking hole (5) large is enclosed within the middle part of drawing pin (6), one end be pressed in directly turn in the pressing portion of (7), on the wall of part that middle aperture that the other end withstands on self-locking hole (5) is large or withstand on be fixed on the part of drawing the aperture of the self-locking hole (5) of one end of the pin handle of pin (6) little jump ring on; The locking end of (7) that the pressing portion that thrust spring (8) is pressed in directly turn (7) promotes directly turn coordinates and the be automatically locked inner conical surface (11) and male cone (strobilus masculinus) (10) that post with the annular lock groove (9) on inner conical surface (11);

Described bearing (16) is disking body or is in strip interconnection shape, disking body or be in strip interconnection shape middle part be above fixed with ear seat (17), at disking body or be in strip below interconnection shape and be stained with skid-proof rubber; Described skid-proof rubber is fixed on disking body or is in strip below interconnection shape, prevents bearing (16) from sliding on the ground with ground resulting in friction;

Described ear seat (17) is the supporter supporting and install rotational pin (15), supporter has pin-and-hole (14) and locking screw, pin-and-hole (14) is for installing and fixing rotational pin (15) bear all wt that rotational pin (15) bears;

Near the pin-and-hole (14) of described locking screw on ear seat (17), for assembling lock bolt (18) and purl screw can be rotated in locking screw, the screw end of lock bolt (18) is made to be pressed in lower part locking rotation seat (1) of rotation seat (1) and the fit angle of bearing (16);

Described lock bolt (18) is screw, can rotate in locking screw, produces and rub and play locking effect when screw end contacts with the lower part of rotation seat (1);

Described rotational pin (15) is pivot pin or bolt, bears for engaging lug seat (17) and rotation seat (1) all wt that rotation seat (1) bears;

Described rotation seat (1) is Connection Block, lower part there is horizontal pin-and-hole (14), there is Inner taper hole (12) upper end of upper part, the inner conical surface (11) of Inner taper hole (12) has the annular lock groove (9) of depression, there is air gap hole (4) below Inner taper hole (12) or the inside, and Inner taper hole (12) is directly through with air gap hole (4); The center line of described pin-and-hole (14) is with the central axis of Inner taper hole (12) or close to vertical; Be provided with to live in the outside of Inner taper hole (12) part of rotation seat (1) and turn hole, the hole that turns alive being circular hole, boring (19) for installing gravity; Being connected with ear seat (17) below by rotational pin (15) of rotation seat (1), be connected with pillar (2) by Inner taper hole (12) above;

Described gravity cone (19) is the vertical bar with taper shank, and taper shank is vertical with vertical bar, and taper shank inserts to live and turns fixing in hole and turn in hole can freely rotate alive; Described gravity cone (19) for directly observe supporter and the ground be arranged on rotation seat (1) angle and as adjusting supporter perpendicular to reference object during horizontal plane;

Described gravity cone (19) can fit together forming unit entirety with rotation seat (1), is convenient to the combination assembling of special pruning garden ladder;

Described supporter is the cylinder that there is male cone (strobilus masculinus) (10) one end, the other end has Inner taper hole (12), comprise connector (3) and pillar (2) two parts, be fixed with in the both sides of the damaged surface of supporter foot-operated (13) of the folding that can draw in one end of the connector of supporter (3); Described supporter to be connector (3) with pillar (2) the be fixed together entirety formed or the entirety be inherently connected; Pillar (2) does not have one end of male cone (strobilus masculinus) (10) and connector (3) not to have one end of Inner taper hole (12) to be connected or be fixed together to form entirety; The end face of the upper end of described connector (3) has Inner taper hole (12), there is air gap hole (4) the inside of Inner taper hole (12), and the inner conical surface (11) of Inner taper hole (12) has the annular lock groove (9) of depression; There is male cone (strobilus masculinus) (10) lower end of described pillar (2), the cylinder of the pillar (2) near male cone (strobilus masculinus) (10) has the self-locking hole (5) of right angle turns shape, the damaged surface that the surface of male cone (strobilus masculinus) (10) is worn out in one end of self-locking hole (5), the other end wears out pillar (2), the center line of self-locking hole (5) and the central axis or parallel of supporter;

Described foot-operated (13) comprise hanger, connecting pin and riding boogie board, hanger is the connector having pin-and-hole (14) be fixed on supporter, connecting pin is the pin connecting hanger and riding boogie board, riding boogie board is the square or flat cylinder or blocks stepped on for pin, is stained with skid-proof rubber or has antiskid glue sleeve at the surface of riding boogie board cover on the surface of riding boogie board;

Described annular lock groove (9) is the cannelure of the depression on the inner conical surface (11) of the Inner taper hole (12) on rotation seat (1) and the Inner taper hole (12) on supporter, cannelure is dovetail groove, corresponding with the position of self-locking hole (5), the one side near the oral area of Inner taper hole (12) is locking face;

Described self-locking hole (5) is independent cavity, one end of male cone (strobilus masculinus) (10) is had at supporter, it is the hole of right angle turns shape, the center line in hole and the central axis of supporter or parallel, at male cone (strobilus masculinus) (10) with in the cylinder of the pillar (2) of male cone (strobilus masculinus) (10), the surface of the cylinder near male cone (strobilus masculinus) (10) is worn out perpendicular to the center line of supporter in the one end in hole, the other end wears out male cone (strobilus masculinus) (10) perpendicular to the center line of supporter; In independent cavity, be inlaid with the housing with the mating shapes of self-locking hole (5), housing exposes or does not expose the damaged surface of supporter in self-locking hole (5); When housing exposes the damaged surface of supporter, the one end of exposing the damaged surface of supporter connects with screw or rivets or be welded on the damaged surface of supporter; When housing does not expose the damaged surface of supporter, connect with screw or rivet or weld or be fixed in self-locking hole (5) with jump ring; The inside and outside two ends of described housing manufacture porose, be provided with in housing and draw pin (6), thrust spring (8), directly turn (7), directly turn (7) be arranged on the middle part of drawing pin (6), thrust spring (8) is arranged on directly turns between (7) and housing, stretches out, the locking end of directly turn (7) coordinates with annular lock groove (9) after stretching out from the hole of the inner face of housing after drawing the pin handle of pin (6) to pass from the centre of thrust spring (8) from the hole of housing outer face;

The described association of drawing pin (6) and directly turn (7) to be an entirety or to combine, the turnover at a right angle of the global shape after installing shape;

The described pin (6) that draws comprises pin portion and pin handle two parts, the end winding support in pin portion is in the pressing portion of directly turning (7), pin handle vertically stretches out the damaged surface of supporter afterwards through thrust spring (8) in self-locking hole (5), draw pin (6) directly turn for pulling (7) exit lock-bit groove;

Described directly turn (7) are column or the blocks of right angle cross break shape, comprise locking end and pressing portion, when installing in self-locking hole (5), pressing portion is parallel to the center line of supporter, and locking end stretches out the surface of male cone (strobilus masculinus) (10) perpendicular to the center line of supporter; Locking effect is produced with the lock-bit slot fit in Inner taper hole (12) after described locking end stretches out the surface of male cone (strobilus masculinus) (10); Described pressing portion passes to locking end for accepting the thrust of thrust spring (8); The leading section of described locking end is the one side at the bottom of the cone of acute angle bevel, the toward the outside conical surface (10) is face directly;

The conical surface comprises inner conical surface (11) and male cone (strobilus masculinus) (10), and the cross section of the conical surface is the circular conical surface, or the polygonal conical surface, or the conical surface of circular arc, or the special-shaped conical surface that circular arc and line segment form;

In order to can tilt ground on supported body, when bearing (16) is arranged on smooth ground, the central axis of rotation seat (1), in bearing (16), ensure that the supporter be arranged on rotation seat (1) is vertical or near perpendicular to horizontal plane; When bearing (16) is arranged on the ground of inclination, certain angle is rotated in rotation seat (1) untie-sell (15) that can rotate on bearing (16), ensure that the supporter be arranged on rotation seat (1) is vertical or near perpendicular to horizontal plane;

In order to make the assembling of maintenance high-tension line ladder quick, bearing (16), ear seat (17), rotational pin (15) and rotation seat (1) are the parts of entirety or the dispersion fitted together.

2. keep in repair high-tension line ladder according to claim 1, it is characterized in that: in order to can the locking inner conical surface (11) of working good and male cone (strobilus masculinus) (10) not loosen, the inner conical surface (11) that described self-locking hole (5), directly turn (7), thrust spring (8) and annular lock groove (9) composition locking system be locked works good and male cone (strobilus masculinus) (10).

3. keep in repair high-tension line ladder according to claim 1, it is characterized in that: in order to reduce costs and alleviate the weight of maintenance high-tension line ladder, the supporter of described maintenance high-tension line ladder adopts the mode of connecting to be combined into single with rotation seat (1) and supporter with supporter and independently supports, and rotation seat (1) and supporter are hollow body or solid; Supporter is individual layer or multilayer in the combination of ladder, and bearing (16) and rotation seat (1) are individual layers in the combination of ladder.

4. keep in repair high-tension line ladder according to claim 1, it is characterized in that: in order in use can Rapid Combination and facilitate pin to step on, described supporter be combined into global facility with foot-operated (13), can assembly fast when being beneficial to use; Described foot-operated (13) fixing employing pin on supporter is connected and fixed, foot-operated (13) are merely able to draw in one end of connector (3) on supporter, landing downwards when pin is stepped down on foot-operated (13).

5. keep in repair high-tension line ladder according to claim 1, it is characterized in that: in order to ensure that supporter is all the time perpendicular to horizontal plane, adopt lock bolt (18) to produce frictional force by rotation forces rotation seat (1) and ear seat (17) and fix rotation seat (1) and the angle angle of bearing (16), when bearing (16) is arranged on the ground of inclination, ensure that the supporter be arranged on rotation seat (1) remains perpendicular to horizontal plane.

6. keep in repair high-tension line ladder according to claim 1, it is characterized in that: bore (19) to make gravity and can remain perpendicular to horizontal plane, the taper shank of described gravity cone (19), in the upper end of vertical bar, makes gravity bore the position of center of gravity lower than taper shank of (19).