CN115036836B - Distribution network overhaul protection umbrella and assembling and disassembling method - Google Patents

Abstract

The invention discloses a distribution network overhaul protective umbrella and an assembly and disassembly method, comprising a first shielding plate and a second shielding plate which are detachably connected together, and further comprising two hanging rods, wherein the top ends of the hanging rods are provided with cross arm lock heads, the lower ends of the two hanging rods respectively penetrate through the first shielding plate and the second shielding plate, limiting rings are arranged on the hanging rods and are positioned above the first shielding plate and the second shielding plate, the lower ends of the hanging rods are provided with handheld rods, and further comprising shielding plate supporting pieces positioned below the first shielding plate and the second shielding plate, and the shielding plate supporting pieces are arranged on the hanging rods or the handheld rods. The assembling and disassembling method comprises the following steps: the hand-held pole, boom, and sets of shields are assembled, then the assembled components are mounted to the pole cross arm, and then the parts are disassembled and moved to the ground. The invention has the advantages that: the novel portable electric power tool has the advantages of simple integral structure, light integral weight, convenience in carrying and use, convenience in assembly and disassembly, effective improvement of maintenance efficiency and lower cost.

Description

Distribution network overhaul protection umbrella and assembling and disassembling method

Technical Field

The invention relates to the field of electric power overhaul equipment, in particular to a distribution network overhaul protective umbrella and an assembly and disassembly method.

Background

With the deep promotion of novel distribution network construction, intelligent equipment workload on the uninterrupted power supply erection column is increased dramatically, distribution network live working bearing capacity of current city and county companies is limited, requirements of distribution network engineering are difficult to comprehensively support, workload of uninterrupted power supply operation can be greatly reduced by utilizing non-live working personnel to finish early-stage installation work, and the problem of insufficient uninterrupted power supply operation bearing capacity is effectively solved.

If the distance from the 10kV live conductor is less than 0.7m, the work can be performed by non-live operators after relevant safety shielding measures are taken. The existing insulating partition board is very heavy (weighing more than 10 kg), is not applicable to many situations, and even if the insulating partition board is applicable to the situation, 2 people are required to log on the pole, 1 person is matched with the ground, and the installation and the dismantling work can be completed only about 30 minutes, so that the uninterrupted operation resource investment and the operation duration of the project in the distribution network project are greatly increased, and the project cost is greatly improved.

In the prior art, a tower operation protection plate disclosed in Chinese utility model patent with publication number of CN204793829U comprises a protection support and two insulating plates; the protective bracket is positioned below the two insulating plates; the protective bracket comprises a hoop and two supporting arms respectively connected with the hoop, and each supporting arm is connected to the lower part of one insulating plate; and a semicircular notch is respectively arranged on the opposite inner sides of the two insulating plates. The guard plate of this structure type, individual personnel hardly install, and practical application is inconvenient to when the installation, hardly ensure the safe distance between guard plate and the electrified body in top, there is certain potential safety hazard.

The existence of the problems causes the limitation of the switch on the installation column of the non-live working personnel, and the violation is notified due to the fact that the safety distance between the constructor and the live body is insufficient.

Disclosure of Invention

The technical problems to be solved by the invention are as follows:

in the prior art, the safety distance is difficult to ensure when the distribution network overhauls the practical application of the insulating partition board, and the distribution network overhauls the long time and the high cost of the maintenance caused by inconvenient use.

The invention solves the technical problems by the following technical means:

the utility model provides a join in marriage net maintenance protection umbrella, is including dismantling first shielding plate, the second shielding plate that links together, still includes two jib, the top of jib is provided with the cross arm tapered end, and the lower extreme of two jib passes respectively first shielding plate, second shielding plate, be provided with the spacing ring on the jib, the spacing ring is located first shielding plate, second shielding plate top, the lower extreme of jib is provided with handheld pole, still including the shielding plate support piece that is located first shielding plate, second shielding plate below, shielding plate support piece sets up on jib or handheld pole.

When the distribution network maintenance protection umbrella is actually applied, the suspenders and the handheld rods penetrate into the first shielding plate and the second shielding plate, then the bottoms of the first shielding plate and the second shielding plate are propped against the shielding plate support piece to prevent the first shielding plate and the second shielding plate from sliding downwards, after the installation is completed, the two suspenders and the first shielding plate, the second shielding plate and other parts can be lifted to the installation position below the cross arm of the telegraph pole through lifting ropes and the like, then operators hold the handheld rods on the rods, and hang the cross arm locking heads on the cross arm of the telegraph pole, the positions of the first shielding plate and the second shielding plate relative to the telegraph pole and the positions of the cross arm locking heads on the cross arm of the telegraph pole are adjusted, the suspenders are lifted and locked on the cross arm of the telegraph pole through the cross arm locking heads, the first shielding plate and the second shielding plate are installed in place in the same manner, the first shielding plate and the second shielding plate are connected together, and are respectively positioned at two sides of the telegraph pole, after the connection is completed, the first shielding plate and the second shielding plate are pushed upwards, so that the first shielding plate and the second shielding plate are respectively propped against the corresponding limiting rings, the first shielding plate and the second shielding plate are respectively positioned at the proper positions. Compared with the prior art, the spacing ring can effectively ensure the safe distance, when the net maintenance is joined in marriage to the joining in marriage, should join in marriage net maintenance protection umbrella overall structure is simple, whole light in weight, portable, convenient to use, especially it is comparatively convenient to install and remove, has effectively improved maintenance efficiency to the cost is lower. During practical application, the non-live working personnel can disassemble and assemble the device automatically outside the safe distance, and 1 person can easily complete all operations in a short time; the method saves precious live working resource investment and time cost while guaranteeing the safety of constructors, and has good social and economic benefits.

Preferably, the handheld rod is hinged to the lower end of the suspender, and the hinge shaft at the lower end of the suspender is perpendicular to the suspender and the handheld rod; the lower end of the suspender is provided with a pair of hinge lugs, the hinge shaft is positioned between the two hinge lugs, and a lug accommodating hole extending towards the interior of the suspender is arranged between the two hinge lugs;

the handheld pole top is provided with the lug, is provided with the slot hole on the lug, and the length direction of lug and slot hole is all on a parallel with the length direction of handheld pole, the articulated shaft is located in the slot hole, the lug can insert in the lug accommodation hole or extract from the lug accommodation hole, the lug can rotate to handheld pole perpendicular to jib's position around the articulated shaft when extracting from the lug accommodation hole.

During practical application, when the lug is in the lug accommodation hole, handheld pole and jib are coaxial state, owing to have the cooperation of lug and lug accommodation hole to inject, the structure is comparatively stable between the two, conveniently install parts such as jib through handheld pole, after jib and each part installation are accomplished, but the handheld pole of drop-down, can swing rotatory after the lug pulls out the lug accommodation hole, can swing handheld pole to the position of perpendicular to jib around the articulated shaft this moment, and keep the gesture motionless with the clamping force of two articulated lugs to the lug, and then realize folding, in order to avoid causing the interference to the below operation space, and simple structure, folding ingenious can realize the stable connection between handheld pole and the jib, and folding convenience, swiftly.

Preferably, the hand-held rod can move towards the direction of the hanging rod and is clamped at the lower end of the hanging rod when rotating to be perpendicular to the hanging rod.

In practical application, rotate the handheld pole to the perpendicular to jib back to jib direction removal, the tip of lug can support the jib lower extreme, and then avoid handheld pole hem, ensure that the gesture after folding is stable, avoid interfering below working space.

Preferably, the shielding plate support comprises an elastic body arranged in the handheld rod, and a protruding portion is arranged on the elastic body and protrudes from the side face of the handheld rod.

When the lifting device is in practical application, the protruding part is pressed, the protruding part can retract to the handheld rod, the shielding plate can penetrate through the handheld rod at the moment, then the protruding part automatically pops up, and in the lifting process, the shielding plate cannot slide off due to the blocking of the protruding part, so that normal lifting is ensured.

Preferably, the hand-held rod is coaxially arranged at the lower end of the suspension rod through threads.

In practical application, after the installation of the protection umbrella is completed, the handheld rod can be screwed off, so that interference to the space under the umbrella is avoided, and the operation space is larger.

Preferably, the edges of the first shielding plate and the second shielding plate, which are opposite to each other, are respectively provided with an arc-shaped opening, the two arc-shaped openings are opposite to each other, and the edges of the arc-shaped openings are provided with soft insulating plates.

During actual installation, two arc openings can block respectively in the both sides of wire pole to hug closely the contact between soft insulation board and the wire pole, soft insulation board adaptable different diameter's pole makes shielding plate in the not co-altitude of pole, the position of different external diameters, and shielding plate centre bore homoenergetic that two arc openings formed forms seamless safety protection structure with the pole.

Preferably, the cross arm lock head comprises a hook, a vertical threaded hole is formed in the bottom of the hook, and the top end of the suspender is installed in the threaded hole through threads; the top of jib is provided with the kicking block, the kicking block is located the couple is inboard, the kicking block with rotate between the jib top and be connected.

In practical application, hang the couple on the wire pole cross arm, twist the jib, the jib top can be on the cross arm bottom, and then realize the locking installation of cross arm tapered end, simple structure, convenient operation. When the hanger rod is actually screwed down, the top block is propped against the bottom of the cross arm, and the hanger rod is screwed down more smoothly because the top block and the top end of the hanger rod can rotate relatively.

Preferably, the shielding plate support member comprises a support sleeve sleeved on the lower end of the suspender, and the support sleeve is fixed on the suspender through a support sleeve fixing bolt.

In practical application, the tightness of the support sleeve can be adjusted through the tightness of the support sleeve fixing bolt, and the support sleeve is simple in structure and convenient to operate.

Preferably, a detachable connecting piece is arranged between the first shielding plate and the second shielding plate, and the detachable connecting piece comprises two fixing hooks which are respectively arranged at the opposite edges of the inner sides of the first shielding plate and the second shielding plate, and elastic pull rings are sleeved on the two fixing hooks.

During the actual installation, after two shielding plates are spliced, the elastic pull ring is sleeved on the two fixing hooks, so that the connection between the two shielding plates can be realized, and the connecting device is simple in structure, convenient to install and reliable in connection.

The invention also discloses a method for assembling and disassembling the maintenance protection umbrella by adopting the distribution network, which comprises the following steps:

s1, mounting

The first group of handheld rods and the suspender are coaxially arranged, the handheld rods and the suspender sequentially penetrate through the first shielding plate, and then the bottom of the first shielding plate is shielded by the shielding plate supporting piece to prevent the first shielding plate from sliding towards the end part of the handheld rod; then penetrating the second group of handheld rods and the hanging rods into the second shielding plate according to the same steps, and shielding the bottom of the second shielding plate through the second group of shielding plate supporting pieces to prevent the second shielding plate from sliding towards the end parts of the handheld rods;

Moving a first group of suspenders to the lower part of a telegraph pole cross arm, holding a handheld rod, locking a cross arm lock head on the cross arm, locking a cross arm lock head of a second group of suspenders on the cross arm according to the same steps, respectively positioning a first shielding plate and a second shielding plate at two sides of the telegraph pole, and then connecting the first shielding plate and the second shielding plate;

pushing up the first shielding plate and the second shielding plate to enable the first shielding plate and the second shielding plate to respectively prop against the bottoms of the corresponding limiting rings, and then propping against the bottoms of the first shielding plate and the second shielding plate;

s2, dismantling

The parts which are propped against the bottoms of the first shielding plate and the second shielding plate are removed, the first shielding plate and the second shielding plate are moved downwards, the bottoms of the first shielding plate and the second shielding plate are respectively shielded by the two groups of shielding plate supporting pieces, the bottoms of the first shielding plate and the second shielding plate are prevented from sliding towards the end parts of the hand-held rods, the first shielding plate and the second shielding plate are disassembled, then the hand-held rods of the first group are held, the cross arm lock heads are detached from the cross arms, the first group of suspenders are moved to the ground, then the second group of cross arm lock heads are detached from the cross arms according to the same steps, and the second group of suspenders are moved to the ground.

The method for assembling and disassembling the protection umbrella for the distribution network maintenance can simply and rapidly realize the assembling and disassembling of the protection umbrella in practical application, effectively improve the maintenance efficiency, enable the non-live working personnel to disassemble and assemble the protection umbrella automatically outside a safe distance in practical application, and enable 1 person to easily complete all operations in a short time; the method saves precious live working resource investment and time cost while guaranteeing the safety of constructors, and has good social and economic benefits.

The invention has the advantages that:

1. when the distribution network maintenance protection umbrella is actually applied, the suspenders and the handheld rods penetrate into the first shielding plate and the second shielding plate, then the bottoms of the first shielding plate and the second shielding plate are propped against the shielding plate support piece to prevent the first shielding plate and the second shielding plate from sliding downwards, after the installation is completed, the two suspenders and the first shielding plate, the second shielding plate and other parts can be lifted to the installation position below the cross arm of the telegraph pole through lifting ropes and the like, then operators hold the handheld rods on the rods, and hang the cross arm locking heads on the cross arm of the telegraph pole, the positions of the first shielding plate and the second shielding plate relative to the telegraph pole and the positions of the cross arm locking heads on the cross arm of the telegraph pole are adjusted, the suspenders are lifted and locked on the cross arm of the telegraph pole through the cross arm locking heads, the first shielding plate and the second shielding plate are installed in place in the same manner, the first shielding plate and the second shielding plate are connected together, and are respectively positioned at two sides of the telegraph pole, after the connection is completed, the first shielding plate and the second shielding plate are pushed upwards, so that the first shielding plate and the second shielding plate are respectively propped against the corresponding limiting rings, the first shielding plate and the second shielding plate are respectively positioned at the proper positions. Compared with the prior art, the spacing ring can effectively ensure the safe distance, when the net maintenance is joined in marriage to the joining in marriage, should join in marriage net maintenance protection umbrella overall structure is simple, whole light in weight, portable, convenient to use, especially it is comparatively convenient to install and remove, has effectively improved maintenance efficiency to the cost is lower. During practical application, the non-live working personnel can disassemble and assemble the device automatically outside the safe distance, and 1 person can easily complete all operations in a short time; the method saves precious live working resource investment and time cost while guaranteeing the safety of constructors, and has good social and economic benefits.

2. During practical application, when the lug is in the lug accommodation hole, handheld pole and jib are coaxial state, owing to have the cooperation of lug and lug accommodation hole to inject, the structure is comparatively stable between the two, conveniently install parts such as jib through handheld pole, after jib and each part installation are accomplished, but the handheld pole of drop-down, can swing rotatory after the lug pulls out the lug accommodation hole, can swing handheld pole to the position of perpendicular to jib around the articulated shaft this moment, and keep the gesture motionless with the clamping force of two articulated lugs to the lug, and then realize folding, in order to avoid causing the interference to the below operation space, and simple structure, folding ingenious can realize the stable connection between handheld pole and the jib, and folding convenience, swiftly.

3. In practical application, rotate the handheld pole to the perpendicular to jib back to jib direction removal, the tip of lug can support the jib lower extreme, and then avoid handheld pole hem, ensure that the gesture after folding is stable, avoid interfering below working space.

4. When the lifting device is in practical application, the protruding part is pressed, the protruding part can retract to the handheld rod, the shielding plate can penetrate through the handheld rod at the moment, then the protruding part automatically pops up, and in the lifting process, the shielding plate cannot slide off due to the blocking of the protruding part, so that normal lifting is ensured.

5. In practical application, after the installation of the protection umbrella is completed, the handheld rod can be screwed off, so that interference to the space under the umbrella is avoided, and the operation space is larger.

6. During actual installation, two arc openings can block respectively in the both sides of wire pole to hug closely the contact between soft insulation board and the wire pole, soft insulation board adaptable different diameter's pole makes shielding plate in the not co-altitude of pole, the position of different external diameters, and shielding plate centre bore homoenergetic that two arc openings formed forms seamless safety protection structure with the pole.

7. In practical application, hang the couple on the wire pole cross arm, twist the jib, the jib top can be on the cross arm bottom, and then realize the locking installation of cross arm tapered end, simple structure, convenient operation. When the hanger rod is actually screwed down, the top block is propped against the bottom of the cross arm, and the hanger rod is screwed down more smoothly because the top block and the top end of the hanger rod can rotate relatively.

8. In practical application, the tightness of the support sleeve can be adjusted through the tightness of the support sleeve fixing bolt, and the support sleeve is simple in structure and convenient to operate.

9. During the actual installation, after two shielding plates are spliced, the elastic pull ring is sleeved on the two fixing hooks, so that the connection between the two shielding plates can be realized, and the connecting device is simple in structure, convenient to install and reliable in connection.

10. The method for assembling and disassembling the protection umbrella for the distribution network maintenance can simply and rapidly realize the assembling and disassembling of the protection umbrella in practical application, effectively improve the maintenance efficiency, enable the non-live working personnel to disassemble and assemble the protection umbrella automatically outside a safe distance in practical application, and enable 1 person to easily complete all operations in a short time; the method saves precious live working resource investment and time cost while guaranteeing the safety of constructors, and has good social and economic benefits.

Drawings

Fig. 1 and 4 are schematic perspective views (unfolded state) of a distribution network overhaul protective umbrella according to a first embodiment of the present invention;

fig. 2 and 3 are enlarged partial views of A, B in fig. 1 in sequence;

FIG. 5 is a schematic view of a protection umbrella (hidden handle) for maintenance of a distribution network according to a first embodiment of the present invention;

FIG. 6 is an enlarged view of a portion of C in FIG. 5;

fig. 7 is a schematic view (unfolded state) of a distribution network maintenance protection umbrella mounted to a telegraph pole cross arm according to the first embodiment of the present invention;

fig. 8 is a schematic perspective view (folded state) of a distribution network overhaul protective umbrella according to the first embodiment of the invention;

fig. 9 and 10 are sectional views showing the insertion of the lug into the lug receiving hole in accordance with the first embodiment of the present invention;

FIGS. 11 and 12 are, in sequence, a cross-sectional view and a side view of a lug extracted from a lug-receiving hole in accordance with the first embodiment of the invention;

FIGS. 13 and 14 are a cross-sectional view and a right side view of the handle bar folded perpendicular to the boom in accordance with the first embodiment of the present invention;

fig. 15 and 16 are sectional views and front views sequentially showing the handle bar folded to the lug abutting the lower end of the boom in accordance with the first embodiment of the present invention;

FIG. 17 is a cross-sectional view of a cross arm lock in accordance with one embodiment of the present invention;

FIG. 18 is a schematic view of a soft insulating plate according to a first embodiment of the present invention;

FIG. 19 is a schematic view showing the installation of a detachable connector according to the first embodiment of the present invention;

FIG. 20 is an exploded view of a detachable connector according to a first embodiment of the present invention;

FIG. 21 is a schematic view of a regular hexagonal head portion of a handle release support sleeve anchor bolt in accordance with a first embodiment of the present invention;

FIG. 22 is a schematic view of a handle sleeve on a regular hexagonal head of a support sleeve fixing bolt according to a first embodiment of the present invention;

FIG. 23 is a schematic view showing the installation of a hand lever and a boom in a second embodiment of the invention;

FIG. 24 is a schematic view of a second embodiment of the present invention in which a hand-held lever is engaged in a slot of a shielding plate support;

FIG. 25 is a left side view of FIG. 24;

FIG. 26 is a cross-sectional view of a third embodiment of the present invention showing the connection of a hand lever to a boom;

FIG. 27 is a cross-sectional view of a third embodiment of the present invention from another perspective at the junction of the hand lever and boom;

Fig. 28 and 29 are enlarged partial views of D, E in fig. 27 in sequence;

FIG. 30 is a schematic perspective view showing a third embodiment of the present invention with lugs inserted into lug receiving holes;

FIG. 31 is a schematic view of a hinge lug in accordance with a third embodiment of the invention;

FIG. 32 is a schematic view of a third embodiment of a lug;

FIG. 33 is a schematic view of a boss extending from a side of a hand-held lever in accordance with a third embodiment of the present invention;

FIGS. 34 and 35 are perspective views of an elastomer according to a third embodiment of the present invention;

wherein,

a first shutter-1; splicing limiting plates-11;

a second shielding plate-2;

boom-3; a hinge shaft-31; a hinge lug-32; lug accommodating holes-33; stud-34; a fixed head-35; a stop collar-36; a threaded bore-37; a first mounting head-38; positioning holes-39;

a cross arm lock head-4; a hook-41; top block-42; upper plate-411; lower plate-412; vertical plates-413;

a shutter support-5; a support sleeve-51; support sleeve fixing bolts-52; a handle-53; a clamping groove-54; an elastomer-55; round holes-531; regular hexagonal holes-532; an elastic pad-541; a boss-551;

a hand-held lever-6; lugs-61; long holes-62; a threaded post-63; a second mounting head-64; an elastic column-65;

arc-shaped notch-7; a soft insulating plate-71;

guide sleeve-8;

A detachable connection member-9; a fixed hook-91; an elastic tab-92; a mounting substrate-93; positioning a convex column-911; locating recess-912; limit column-913; handle-921.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Embodiment one:

referring to fig. 1 and 4, a distribution network overhaul protective umbrella comprises a first shielding plate 1, a second shielding plate 2, a suspender 3, a cross arm lock 4, a shielding plate support 5, a handheld rod 6, an arc opening 7, a guide sleeve 8 and a detachable connecting piece 9.

The first shielding plate 1 and the second shielding plate 2 are detachably connected together through a detachable connecting piece 9. The jib 3 sets up two, the top of jib 3 is provided with cross arm tapered end 4, and the lower extreme of two jib 3 passes respectively first shielding plate 1, second shielding plate 2, the lower extreme hinge of jib 3 is provided with handheld pole 6, and handheld pole 6 in this embodiment is collapsible promptly, the articulated shaft 31 of jib 3 lower extreme is perpendicular to jib 3 and handheld pole 6. Also included is a shield support 5 located below the first shield 1, the second shield 2, said shield support 5 being provided on the boom 3 or the hand-held bar 6.

Specifically, as shown in fig. 5, the first shielding plate 1 and the second shielding plate 2 are in semicircular structures, the opposite edges of the inner sides of the first shielding plate 1 and the second shielding plate 2 are respectively provided with an arc-shaped opening 7, the arc-shaped openings 7 are preferably semicircular, the two arc-shaped openings 7 are opposite, and the edge of the arc-shaped opening 7 is provided with a soft insulating plate 71. As shown in fig. 18, the soft insulating plate 71 is in a semi-circular shape, and is mounted at the edge of the arc-shaped notch 7 by means of gluing or screw fixing, etc., and the soft insulating plate 71 is made of soft insulating material to realize deformation and bending, such as rubber, silica gel, etc. Further, in this embodiment, the first shielding plate 1 and the second shielding plate 2 are made of light materials, such as aramid fiber materials, rigid foam, nonmetallic honeycomb, foamed adhesive films, and the like. All positions of the first shielding plate 1 and the second shielding plate 2 can pass interlayer withstand voltage and leakage current tests of 20kV according to standards.

As shown in fig. 2, the top of the inner edge of the first shielding plate 1 is provided with a splicing limiting plate 11, the splicing limiting plate 11 is of a rectangular sheet structure, and protrudes from the top of the inner edge of the first shielding plate 1 in a overhanging manner, and the inner edge of the second shielding plate 2 is located below the splicing limiting plate 11 so as to realize limiting splicing.

Further, as shown in fig. 1 and 3, a guide sleeve 8 is respectively disposed on the first shielding plate 1 and the second shielding plate 2, the suspension rod 3 is slidably mounted in the corresponding guide sleeve 8, and the two guide sleeves 8 are symmetrically disposed about a boundary line between the first shielding plate 1 and the second shielding plate 2, and the guide sleeve 8 is glued or mounted with the corresponding shielding plate through a screw. Further, a circular limiting ring 36 is arranged on the suspender 3, the limiting ring 36 is installed on the suspender 3 through pins or screws, and the limiting ring 36 is positioned above the first shielding plate 1 and the second shielding plate 2 and used for limiting the upward movement of the first shielding plate 1 and the second shielding plate 2, ensuring that the first shielding plate 1 and the second shielding plate 2 are below a safe position and ensuring the safe distance between the shielding plate and a 10kV charged body above.

Further, as shown in fig. 4 and 5, two groups of detachable connectors 9 are disposed between the first shielding plate 1 and the second shielding plate 2, and are respectively located at the splice junctions of two sides of the round hole formed by splicing the two arc-shaped openings 7, the detachable connectors 9 include two fixing hooks 91 respectively disposed at the opposite edges of the inner sides of the first shielding plate 1 and the second shielding plate 2, the fixing hooks 91 are disposed on a rectangular mounting substrate 93, and the mounting substrate 93 is mounted on the corresponding shielding plate by means of screws or rivets, adhesion, and the like.

As shown in fig. 19 and 20, the two fixing hooks 91 are sleeved with elastic pull rings 92. The two fixed hooks 91 are of L-shaped hook structures, the directions of the elbows are opposite, in the two fixed hooks 91, the inner end part of one fixed hook 91 is provided with a positioning convex column 911, the root diameter of the positioning convex column 911 is larger than the end diameter, the inner end part of the other fixed hook 91 is provided with a positioning concave hole 912 matched with the positioning convex column 911, and when the two shielding plates are spliced, the positioning convex column 911 can be inserted into the positioning concave hole 912 to realize positioning. Further, the elbow bottom of one of the fixed hooks 91 is provided with a spacing post 913, and the distance between the lower end of the spacing post 913 and the mounting substrate 93 is smaller than the cross-sectional diameter of the elastic pull ring 92, so that the elastic pull ring 92 can slide into the lower part of the elbow of the fixed hook 91 from the lower end of the spacing post 913 under the action of external force and is in a natural state without falling down, one side of the elastic pull ring 92 is provided with an annular handle 921, and when in actual use, an operator inserts the elastic pull ring 92 into the handle 921 through a finger, pulls the elastic pull ring 92 to deform and is sleeved under the elbow of the other fixed hook 91 to realize connection, and the elastic pull ring 92 is made of elastic materials such as elastic rubber.

The suspender 3 and the handheld rod 6 are light insulating rods, and the suspender 3 is an epoxy glass fiber reinforced plastic laminated pipe and can pass through a 400mm withstand voltage and leakage current test of 45kV according to the standard. The starting installation position of the shielding plate and the installation position during operation are distinguished on the hanging rod 3 through different color marks.

As shown in fig. 9 and 10, the lower end of the boom 3 is provided with a pair of hinge lugs 32, the hinge shaft 31 is located between the hinge lugs 32, and a lug accommodating hole 33 extending toward the inside of the boom 3 is provided between the hinge lugs 32.

As shown in fig. 9 and 10, the top end of the hand-held rod 6 is provided with a lug 61, the lug 61 is matched with the lug accommodating hole 33 in shape, when the lug 61 is inserted into the lug accommodating hole 33, the lug 61 is in interference fit or excessive fit, and the lug 61 cannot slide out of the lug accommodating hole 33 in a natural state and can be pulled out only by an operator when the lug is pulled.

Specifically, as shown in fig. 9, the lug 61 is provided with a long hole 62, the length directions of the lug 61 and the long hole 62 are parallel to the length direction of the hand-held rod 6, the hinge shaft 31 is located in the long hole 62, the lug 61 can be inserted into the lug accommodating hole 33 or pulled out from the lug accommodating hole 33, that is, in the state shown in fig. 9-12, and the lug 61 can rotate around the hinge shaft 31 to a position perpendicular to the boom 3 of the hand-held rod 6 when pulled out from the lug accommodating hole 33, that is, in the state shown in fig. 13 and 14.

Further, the two hinge lugs 32 can clamp the lugs 61, so that the hand-held rod 6 does not naturally fall down when being perpendicular to the boom 3, and can swing only under the action of external force of an operator, or a damping piece can be arranged between the hinge lugs 32 and the lugs 61, so that the hand-held rod 6 can not naturally fall down when being perpendicular to the boom 3, and can swing only under the action of external force of the operator.

Further, when the hand-held rod 6 rotates to be perpendicular to the boom 3, the hand-held rod can move towards the boom 3 and be clamped at the lower end of the boom 3. In this way, the upper side of the end of the lug 61 can abut against the lower end of the boom 3, thereby preventing the hand lever 6 from accidentally swinging down, i.e. the condition shown in fig. 8, 15, 16.

As shown in fig. 17, the cross arm lock 4 includes a hook 41, the hook 41 includes an upper plate 411 and a lower plate 412, the ends of the upper plate 411 and the lower plate 412 are connected by a vertical plate 413, the length of the upper plate 411 is greater than that of the lower plate 412, and the ends of the upper plate 411 are bent downwards to ensure that the end of the upper plate 411 does not slide horizontally when being hung on the cross arm. The bottom of the hook 41 is provided with a vertical threaded hole, in particular, the threaded hole is formed in the lower plate 412, and the top end of the boom 3 is mounted in the threaded hole through threads.

As shown in fig. 17, a top end of the boom 3 is provided with a top block 42, the top block 42 is located inside the hook 41, and the top block 42 is rotatably connected with the top end of the boom 3. Specifically, the top of jib 3 sets up double-screw bolt 34, and double-screw bolt 34 with cooperation installation between the screw hole on the lower flat board 412, double-screw bolt 34 passes through the pin to be installed in the hole on jib 3 top, the double-screw bolt 34 top is provided with the shrinkage pool, has fixed head 35 through pin fixed mounting in the shrinkage pool, and fixed head 35 lower part is cylindrical, and the top sets up the flange, be provided with the shoulder hole on the kicking block 42, fixed head 35 is located in the shoulder hole, fixed head 35 can rotate in the shoulder hole. The top block 42 can be lifted in the hook 41, and the top block 42 does not rotate under the limit of the inner wall of the vertical plate 413.

As shown in fig. 6, the shutter support 5 includes a support sleeve 51 fitted over the lower end of the boom 3, and the support sleeve 51 is fixed to the boom 3 by a support sleeve fixing bolt 52. The supporting sleeve 51 is U-shaped and clamped on the suspender 3, the end part of the supporting sleeve fixing bolt 52 is provided with a handle 53, when an operator screws up through the handle 53, the supporting sleeve 51 clamps towards the middle, so that the shielding plate supporting piece 5 can be fixed on the suspender 3, and when unscrewed, the shielding plate supporting piece can slide on the suspender 3 or the handheld rod 6. In this embodiment, the diameters of the boom 3 and the handheld rod 6 are equal, and when the boom 3 and the handheld rod 6 are coaxial, the supporting sleeve 51 can be moved to the junction of the boom 3 and the handheld rod 6, so that the boom 3 and the handheld rod 6 are fixed at the same time, stable connection between the boom 3 and the handheld rod 6 is ensured, and the shielding plate is convenient to install.

Further, as shown in fig. 21 and 22, the end of the handle 53 is coaxially provided with a circular hole 531 and a regular hexagonal hole 532 matched with the end of the supporting sleeve fixing bolt 52, the circular hole 531 is smaller than the regular hexagonal hole 532 and larger than the diameter of the threaded section of the supporting sleeve fixing bolt 52, and the regular hexagonal hole 532 can be matched with the regular hexagonal head of the supporting sleeve fixing bolt 52 to realize tightening operation.

Working principle:

when the distribution network overhaul protection umbrella in the embodiment is actually applied, firstly, the hanging rod 3 and the handheld rod 6 penetrate into the first shielding plate 1 and the second shielding plate 2, then the shielding plate supporting piece 5 is installed at the lower end of the hanging rod 3, after the installation is completed, the two hanging rods 3 together with the first shielding plate 1, the second shielding plate 2 and other parts are lifted to the installation position below the electric pole cross arm through hanging ropes, then operators on the rod hold the handheld rod 6, the cross arm locking head 4 is hung on the electric pole cross arm, the positions of the first shielding plate 1 and the second shielding plate 2 relative to the electric pole and the position of the cross arm locking head 4 on the electric pole cross arm are adjusted, the hanging rod 3 is lifted and locked on the electric pole cross arm through the cross arm locking head 4, the first shielding plate 1 and the second shielding plate 2 are installed in place in the same mode, then the first shielding plate 1 and the second shielding plate 2 are connected together, the first shielding plate 1 and the second shielding plate 2 are respectively located on two sides of the electric pole, after the connection is completed, the first shielding plate 1 and the second shielding plate 2 are pushed up, the corresponding rings 36 are respectively pushed up, the second shielding plate 2 are respectively located below the corresponding shielding plates and the second shielding plate 1 and the second shielding plate 2 are supported at the positions, the proper positions are adjusted, the shielding plates are supported by the shielding plates 5, and the shielding plates are supported by the proper positions are guaranteed, and the shielding plates are supported by the shielding plates 2 and 5. Compared with the prior art, the spacing ring can effectively ensure the safe distance, when the net maintenance is joined in marriage to the joining in marriage, should join in marriage net maintenance protection umbrella overall structure is simple, whole light in weight, portable, convenient to use, especially it is comparatively convenient to install and remove, has effectively improved maintenance efficiency to the cost is lower. During practical application, the non-live working personnel can disassemble and assemble the device automatically outside the safe distance, and 1 person can easily complete all operations in a short time; the method saves precious live working resource investment and time cost while guaranteeing the safety of constructors, and has good social and economic benefits.

During practical application, when the lug 61 is in the lug accommodating hole 33, the handheld rod 6 and the hanging rod 3 are in a coaxial state, due to the fact that the lug 61 is matched with the lug accommodating hole 33 to limit the structure between the handheld rod 6 and the hanging rod 3, the hanging rod 3 and other parts are conveniently installed through the handheld rod 6, after the hanging rod 3 and the parts are installed, the handheld rod 6 can be pulled down, the lug 61 can swing and rotate after being pulled out of the lug accommodating hole 33, at the moment, the handheld rod 6 can swing to a position perpendicular to the hanging rod 3 around the hinge shaft 31, the clamping force of the two hinge lugs 32 on the lug 61 is kept to be motionless, folding is achieved, interference to a lower operation space is avoided, the structure is simple, folding is ingenious, stable connection between the handheld rod 6 and the hanging rod 3 can be achieved, and folding is convenient and quick. In practical application, the handheld rod 6 is rotated to be perpendicular to the boom 3 and then moves towards the boom 3, the end part of the lug 61 can be propped against the lower end of the boom 3, so that the lower hem of the handheld rod 6 is avoided, the stable folded posture is ensured, and the interference to the lower working space is avoided.

During actual installation, two arc-shaped openings 7 can be clamped on two sides of a telegraph pole respectively, and the two arc-shaped openings are in tight contact with the telegraph pole through the soft insulating plate 71, the soft insulating plate 71 can adapt to the telegraph poles with different diameters, so that shielding plates can be tightly attached to the telegraph pole at positions with different heights and different outer diameters of the telegraph pole, and the central holes of the shielding plates formed by the two arc-shaped openings 7 can be tightly attached to the telegraph pole, so that a seamless safety protection structure is formed. The guide sleeve 8 is arranged to facilitate the sliding between the shielding plate and the suspender 3, so that the use is more convenient. In practical application, the hanger 41 is hung on a telegraph pole cross arm, the suspender 3 is screwed, the top end of the suspender 3 can be propped against the bottom of the cross arm, and further the locking and the installation of the cross arm lock 4 are realized, so that the structure is simple, and the operation is convenient. When the hanger rod is actually screwed down, the top block 42 is propped against the bottom of the cross arm, and the hanger rod 3 is screwed down more smoothly because the top block 42 and the top end of the hanger rod 3 can rotate relatively.

In practical application, the tightness of the supporting sleeve 51 can be adjusted through the tightness of the supporting sleeve fixing bolt 52, and the structure is simple and the operation is convenient. During actual installation, after the two shielding plates are spliced, the elastic pull ring 92 is sleeved on the two fixing hooks 91, so that connection between the two shielding plates can be realized, and the device is simple in structure, convenient to install and reliable in connection.

Embodiment two:

the difference between this embodiment and the first embodiment is that:

the mounting structure between the hand-held rod 6 and the boom 3 is different, and is screwing, specifically, as shown in fig. 23, the hand-held rod 6 is coaxially mounted at the lower end of the boom 3 through threads. The lower end of the boom 3 is coaxially provided with a threaded hole 37, the top end of the handheld rod 6 is coaxially provided with a threaded column 63, and the threaded column 63 is matched with the threaded hole 37. Or, a threaded column is arranged at the lower end of the boom 3, and a threaded hole matched with the handheld rod 6 is arranged at the top end of the handheld rod.

Further, as shown in fig. 24 and 25, the shutter support 5 is provided with a horizontal locking groove 54, and the hand lever 6 detached from the lower end of the boom 3 can be locked horizontally in the locking groove 54. Elastic pads 541 are arranged on the upper side wall and the lower side wall of the clamping groove 54, and the handheld rod 6 can be clamped between the two elastic pads 541.

In practical application, after the installation of the protection umbrella is completed, the handheld rod 6 can be screwed off and horizontally clamped in the clamping groove 54 of the shielding plate support piece 5, so that interference to the space under the umbrella is avoided, and the operation space is larger.

Embodiment III:

the difference between this embodiment and the first embodiment is that:

26-28, 30-32, further comprising a first mounting head 38 and a second mounting head 64, wherein the hinge lug 32 is positioned at the bottom of the first mounting head 38, the lug accommodating hole 33 is positioned on the first mounting head 38, the first mounting head 38 is integrally in a cylindrical structure and is fixed in a hole at the lower end of the hanging rod 3 through a pin, and the limiting ring 36 is positioned on the outer side of the upper part of the first mounting head 38 and is fixed on the hanging rod 3 through the same pin.

As shown in fig. 32, the lug 61 is located at the top of the second mounting head 64, the lower part of the second mounting head 64 is in a cylindrical structure, and is fixed in a hole at the top of the hand-held rod 6 by a pin, further, two sides of the end of the lug 61 are respectively provided with an elastic column 65, the elastic column 65 is made of elastic material, such as rubber, one end of the elastic column 65 extends out from the side of the lug 61, and the extending end is spherical, and correspondingly, a positioning hole 39 matched with the end of the elastic column 65 is provided on the side wall of the lug accommodating hole 33, and when the lug 61 is inserted into the lug accommodating hole 33, the elastic column 65 can be sprung into the positioning hole 39 to realize positioning, so as to prevent the hand-held rod 6 from sliding out. Further, the elastic column 65 may be configured as a spring steel ball, that is, a spring is installed in a hole originally used for installing the elastic column 65, and a steel ball is installed at an end of the spring to be matched with the positioning hole 39.

As shown in fig. 27, 29, 33-35, in this embodiment, the shutter support 5 is different from the above embodiment in that it includes an elastic body 55 disposed in the hand-held rod 6, the elastic body 55 adopts a spring plate, a protruding portion 551 is disposed on the elastic body 55, and the protruding portion 551 protrudes from the side surface of the hand-held rod 6. The protruding portion 551 and the elastic body 55 are integrated, and can be formed by bending, the outer surface of the protruding portion 551 is a smooth curved surface, the lower end of the elastic body 55 is fixedly connected with the inner wall of the handheld rod 6, and the upper end of the elastic body can be abutted against the inner wall of the other side of the handheld rod 6, so that further ejection is prevented.

Embodiment four:

the embodiment discloses a method for assembling and disassembling an overhaul protection umbrella of a distribution network, which comprises the following steps:

s1, mounting

The first set of hand levers 6 is arranged coaxially with the boom 3, in particular, if in a folded configuration, the hand levers 6 are turned coaxially with the boom 3 and inserted into the lug receiving holes 33. If a screw-type structure is adopted, the hand-held rod 6 and the boom 3 are screwed.

The handheld rod 6 and the suspender 3 sequentially penetrate through the first shielding plate 1, then the shielding plate support 5 penetrates from the end part of the handheld rod 6, and the shielding plate support 5 is fastened on the handheld rod 6, or according to practical conditions, the shielding plate support 5 can be fastened at the junction of the handheld rod 6 and the suspender 3, so that stable connection between the handheld rod 6 and the suspender 3 is realized, and meanwhile the bottom of the first shielding plate 1 is shielded through the shielding plate support 5 and prevented from sliding towards the end part of the handheld rod 6.

The second set of handrails 6, boom 3 are then threaded into the second blind 2 in the same manner and the second set of blind supports 5 are installed and the bottom of the second blind 2 is shielded from sliding toward the end of the handrails 6 by the second set of blind supports 5.

The first group of suspenders 3 are moved to the lower part of the telegraph pole cross arm, specifically, operators can climb the telegraph pole in advance, then hang the suspenders 3 to the telegraph pole through ropes and the like, then hold the handheld pole 6 and lock the cross arm lock head 4 on the cross arm, specifically, after the hanging hook 41 is hung on the cross arm, the suspenders 3 and the first shielding plate 1 are moved to a proper position, the arc-shaped notch 7 and the soft insulating plate 71 are ensured to be attached to one side of the telegraph pole, then the handheld pole 6 is rotated, the stud 34 is screwed, and the top block 42 is lifted up to the bottom of the cross arm, so that the locking is realized.

Then locking the cross arm lock heads 4 of the second group of suspenders 3 on the cross arm according to the same steps, respectively positioning the first shielding plate 1 and the second shielding plate 2 on two sides of a telegraph pole, and then connecting the first shielding plate 1 and the second shielding plate 2; specifically, the positioning boss 911 is aligned with and inserted into the positioning concave hole 912, and then the pull handle 921 is pulled, so that the elastic pull ring 92 is sleeved on the two fixing hooks 91, and further, the quick connection between the first shielding plate 1 and the second shielding plate 2 is realized.

The first shielding plate 1 and the second shielding plate 2 are pushed up to be respectively propped against the bottoms of the corresponding limiting rings 36, the distance between the limiting rings 36 and the cross arm lock head 4 is set according to the safety distance requirement of the actual operation environment, the shielding plates are ensured to be limited below the safety distance, in addition, in order to conveniently adjust the positions of the limiting rings 36 on the rod, jackscrews can be arranged on the limiting rings 36, and the heads of the jackscrews are propped against the rod.

Then pushing up the two shielding plate supports 5, and fastening the two groups of shielding plate supports 5 after the shielding plate supports 5 are propped against the first shielding plate 1 and the second shielding plate 2. After the installation, if the folding structure is adopted, the hand-held lever 6 is pulled down, i.e., the state shown in fig. 11, and then the hand-held lever 6 is turned, i.e., the state shown in fig. 13, and then the hand-held lever 6 is pushed horizontally, i.e., the state shown in fig. 8, 15. If the screwing structure is adopted, the hand-held rod 6 is screwed off, and in the screwing process, in order to prevent the cross arm lock head 4 from being unscrewed, the shielding plate support 5 and the limiting ring 36 can be clamped to the shielding plate when the shielding plate support 5 is fastened, the hand-held rod 6 is unscrewed by holding the shielding plate support 5 and the hanging rod 3, and then the hand-held rod 6 is clamped in the corresponding clamping groove 54, namely, the state shown in fig. 24 and 25.

S2, dismantling

If the folding structure is adopted, the hand-held lever 6 is horizontally pulled to the state shown in fig. 13, then is swung down to the vertical state shown in fig. 11, and then the hand-held lever 6 is pushed up to the state shown in fig. 9. If a screw-type structure is adopted, the hand-held rod 6 is taken down and then screwed on the lower end of the boom 3.

The two groups of shielding plate supporting pieces 5 are loosened respectively and are slid down to the corresponding handheld rods 6 for fastening, and the shielding plate supporting pieces 5 can be moved to the junction of the handheld rods 6 and the suspenders 3 for fastening according to actual conditions.

The first shielding plate 1 and the second shielding plate 2 are then moved downwards, the bottoms of the first shielding plate 1 and the second shielding plate 2 are respectively shielded from sliding towards the end parts of the handheld rods 6 by the two groups of shielding plate supporting pieces 5, the first shielding plate 1 and the second shielding plate 2 are disassembled, then the first group of handheld rods 6 are held for reverse screwing, the cross arm lock heads 4 are detached from the cross arms, the first group of hanging rods 3 are moved to the ground, the second group of cross arm lock heads 4 are detached from the cross arms according to the same steps, and the second group of hanging rods 3 are moved to the ground.

The method for assembling and disassembling the protection umbrella for the distribution network maintenance can simply and rapidly realize the assembling and disassembling of the protection umbrella in practical application, effectively improve the maintenance efficiency, enable the non-live working personnel to disassemble and assemble the protection umbrella automatically outside a safe distance in practical application, and enable 1 person to easily complete all operations in a short time; the method saves precious live working resource investment and time cost while guaranteeing the safety of constructors, and has good social and economic benefits.

Fifth embodiment:

the difference between this embodiment and the fourth embodiment is that:

in the third embodiment, the protection umbrella for maintenance of the distribution network is adopted, specifically, in the installation process, after the handheld rod 6 rotates to be coaxial with the hanging rod 3 and is inserted into the lug accommodating hole 33, the protrusion 551 is pressed, the protrusion 551 is retracted into the handheld rod 6 so as not to influence the penetration of the first shielding plate 1, then the first shielding plate 1 is penetrated from the end of the handheld rod 6, and then the protrusion 551 automatically pops out to shield the bottom of the first shielding plate 1 from sliding towards the end of the handheld rod 6; then the second group of hand-held rods 6 and the hanging rods 3 are penetrated into the second shielding plate 2 according to the same steps, the convex parts 551 automatically pop up, and the bottoms of the second shielding plate 2 are blocked to prevent the bottoms from sliding towards the end parts of the hand-held rods 6.

After the first and second shutters 1 and 2 are pushed up, the hand lever 6 is pulled down, i.e., the state shown in fig. 11, and then the hand lever 6 is rotated, i.e., the state shown in fig. 13, and then the hand lever 6 is pushed horizontally, i.e., the state shown in fig. 8 and 15. Thus, the hand-held rod 6 can be propped against the bottoms of the first shielding plate 1 and the second shielding plate 2, and plays a supporting role on the first shielding plate and the second shielding plate.

In the dismantling process, the handheld rod 6 is adjusted to be in a vertical state, as the protruding part 551 is in a normally ejected state, the first shielding plate 1 and the second shielding plate 2 which move downwards can be directly blocked by the protruding part 551 to prevent slipping, and then the hanging rod 3 can be lifted and moved to the ground by detaching the cross arm lock head 4.

Compared with the fourth embodiment, the embodiment adopts the sprung type protruding part 551 to replace the movable supporting sleeve 51 and the supporting sleeve fixing bolt 52 in the fourth embodiment, and has simpler structure and convenient use.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. The utility model provides a join in marriage net maintenance protection umbrella which characterized in that: the novel shielding device comprises a first shielding plate (1) and a second shielding plate (2) which are detachably connected together, and further comprises two hanging rods (3), wherein cross arm lock heads (4) are arranged at the top ends of the hanging rods (3), the lower ends of the two hanging rods (3) penetrate through the first shielding plate (1) and the second shielding plate (2) respectively, limiting rings (36) are arranged on the hanging rods (3), the limiting rings (36) are located above the first shielding plate (1) and the second shielding plate (2), a handheld rod (6) is arranged at the lower end of the hanging rods (3), shielding plate supporting pieces (5) located below the first shielding plate (1) and the second shielding plate (2) are further arranged on the hanging rods (3) or the handheld rod (6);

The handheld rod (6) is hinged to the lower end of the suspender (3), and a hinged shaft (31) at the lower end of the suspender (3) is perpendicular to the suspender (3) and the handheld rod (6); the lower end of the suspender (3) is provided with a pair of hinge lugs (32), the hinge shaft (31) is positioned between the two hinge lugs (32), and a lug accommodating hole (33) extending towards the inside of the suspender (3) is arranged between the two hinge lugs (32);

the top end of the handheld rod (6) is provided with a lug (61), the lug (61) is provided with a long hole (62), the length directions of the lug (61) and the long hole (62) are parallel to the length direction of the handheld rod (6), the hinge shaft (31) is positioned in the long hole (62), the lug (61) can be inserted into the lug accommodating hole (33) or pulled out of the lug accommodating hole (33), and the lug (61) can rotate around the hinge shaft (31) to a position of the handheld rod (6) perpendicular to the hanging rod (3) when pulled out of the lug accommodating hole (33);

the hand-held rod (6) can move towards the direction of the hanging rod (3) and is clamped at the lower end of the hanging rod (3) when rotating to be perpendicular to the hanging rod (3);

the shielding plate support (5) comprises an elastic body (55) arranged in the handheld rod (6), a protruding portion (551) is arranged on the elastic body (55), and the protruding portion (551) protrudes from the side face of the handheld rod (6).

2. The distribution network overhaul protection umbrella of claim 1, wherein: the hand-held rod (6) is coaxially arranged at the lower end of the suspender (3) through threads.

3. The distribution network overhaul protection umbrella of claim 1, wherein: the novel shielding plate is characterized in that an arc-shaped opening (7) is formed in the edge of the first shielding plate (1) and the edge of the second shielding plate (2) opposite to the inner side, the two arc-shaped openings (7) are arranged opposite to each other, and a soft insulating plate (71) is arranged at the edge of the arc-shaped opening (7).

4. The distribution network overhaul protection umbrella of claim 1, wherein: the cross arm lock head (4) comprises a hook (41), a vertical threaded hole is formed in the bottom of the hook (41), and the top end of the suspender (3) is installed in the threaded hole through threads; the top of jib (3) is provided with kicking block (42), kicking block (42) are located couple (41) inboard, kicking block (42) with rotate between jib (3) top and be connected.

5. The distribution network overhaul protection umbrella of claim 1, wherein: the shielding plate support (5) comprises a support sleeve (51) sleeved on the lower end of the hanging rod (3), and the support sleeve (51) is fixed on the hanging rod (3) through a support sleeve fixing bolt (52).

6. The distribution network overhaul protection umbrella of claim 1, wherein: the detachable connecting piece (9) is arranged between the first shielding plate (1) and the second shielding plate (2), the detachable connecting piece (9) comprises two fixing hooks (91) which are respectively arranged at the opposite edges of the inner sides of the first shielding plate (1) and the second shielding plate (2), and elastic pull rings (92) are sleeved on the two fixing hooks (91).

7. A method for assembling and disassembling an overhaul protection umbrella by adopting the distribution network according to any one of claims 1-6, which is characterized in that: the method comprises the following steps:

s1, mounting

The first group of handheld rods (6) and the hanging rods (3) are coaxially arranged, the handheld rods (6) and the hanging rods (3) sequentially penetrate through the first shielding plate (1), and then the bottoms of the first shielding plates (1) are shielded by the shielding plate supporting pieces (5) to prevent the bottoms of the first shielding plates from sliding towards the end parts of the handheld rods (6); then penetrating the second group of handheld rods (6) and the suspenders (3) into the second shielding plate (2) according to the same steps, and shielding the bottom of the second shielding plate (2) by the second group of shielding plate supporting pieces (5) to prevent the second shielding plate from sliding towards the end parts of the handheld rods (6);

moving the first group of hanging rods (3) to the lower part of a telegraph pole cross arm, holding a handheld rod (6) and locking a cross arm lock head (4) on the cross arm, locking the cross arm lock head (4) of the second group of hanging rods (3) on the cross arm according to the same steps, respectively positioning a first shielding plate (1) and a second shielding plate (2) on two sides of the telegraph pole, and then connecting the first shielding plate (1) and the second shielding plate (2);

Pushing up the first shielding plate (1) and the second shielding plate (2) to enable the first shielding plate and the second shielding plate to respectively prop against the bottoms of the corresponding limiting rings (36), and then propping against the bottoms of the first shielding plate (1) and the second shielding plate (2);

s2, dismantling

Removing parts which are propped against the bottoms of the first shielding plate (1) and the second shielding plate (2), downwards moving the first shielding plate (1) and the second shielding plate (2), respectively shielding the bottoms of the first shielding plate (1) and the second shielding plate (2) through two groups of shielding plate supporting pieces (5) to prevent the bottoms of the first shielding plate and the second shielding plate from sliding towards the end parts of the handheld rods (6), disassembling the first shielding plate (1) and the second shielding plate (2), then holding the first group of handheld rods (6) and detaching the cross arm lock heads (4) from the cross arm, moving the first group of suspenders (3) to the ground, then detaching the second group of cross arm lock heads (4) from the cross arm according to the same steps, and moving the second group of suspenders (3) to the ground.