CN109052260A

CN109052260A - A kind of auxiliary construction device for optical-fibre communications covering

Info

Publication number: CN109052260A
Application number: CN201810968608.1A
Authority: CN
Inventors: 何振中
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2018-12-21

Abstract

The invention discloses a kind of auxiliary construction devices for optical-fibre communications covering, including car body, the car body upper end is welded with rotation seat, portable pillar is rotatably connected on the rotation seat, the car body upper end is connected with the first mounting base, hydraulic cylinder is movably installed in first mounting base, the driving end of the hydraulic cylinder is flexibly connected with movable column bottom, the portable pillar side wall is fixedly connected with the first limit base and the second limit base, and the first rotation chamber and the second rotation chamber are offered inside second limit base.The present invention can make construction personnel conveniently reach required construction height, without climbing staircase up and down, more convenient safety；The tools sort used required in construction personnel's work progress can be put, look for it is quick, take it is more convenient, so that construction efficiency is higher；Old-fashioned cable the end of a thread when can prevent maintenance from constructing simultaneously under replacement, which mops floor or hangs from above, damages pedestrian, and safety is higher.

Description

A kind of auxiliary construction device for optical-fibre communications covering

Technical field

The present invention relates to technical field of optical fiber communication more particularly to a kind of auxiliary construction dresses for optical-fibre communications covering It sets.

Background technique

With the development of generation information technology, the birth of optical-fibre communications produces revolutionary shadow for telecommunications industry It rings.The advantages that optical-fibre communications has transmission capacity big, and transmission speed is fast, good confidentiality has become current most important now Wired communication mode.

For the overwrite procedure of optical-fibre communications always in lasting progress, street newly-built in recent years, cell all can pre-plugged light Cable pipeline is in order to install optical fiber, but some old-fashioned cells and more backward street do not shift to an earlier date embedded light early relatively due to constructing Cable, optical cable can only be maked somebody a mere figurehead by cement pole and be extended in cell or street by construction personnel, and the cement in cell or street Fiber box is installed on bar, then is accessed in each user family by fiber box；Construction personnel is to the optical fiber installed in the past simultaneously Distributing cabinet is also required to periodic inspection.

Nowadays, optical fiber covers construction personnel when installing fiber box, is usually climbed using staircase to cement pole Top is constructed, and it is more dangerous to put work to good use, needs tool to be used also more in work progress, and often staircase is taken up and down Tool is extremely inconvenient；And when being overhauled to fiber box, if old-fashioned cable under replacing is in hanging state from above or the end of a thread is straight It connects to mop floor to be easy to impact pedestrian and even causes danger.

For this purpose, we have proposed a kind of auxiliary construction devices for optical-fibre communications covering.

Summary of the invention

The purpose of the present invention is to solve the covering construction personnel of optical fiber in the prior art when installing fiber box, leads to It is often to be climbed using staircase to constructing above cement pole, it is more dangerous to put work to good use, and work to be used is needed in work progress Tool is also more, and it is extremely inconvenient that frequent staircase up and down takes tool；Old-fashioned cable and when being overhauled to fiber box, under replacing If even causing dangerous problem in hanging state or the end of a thread from above and directly mopping floor to be easy to impact pedestrian, and one proposed Auxiliary construction device of the kind for optical-fibre communications covering.

To achieve the goals above, present invention employs following technical solutions: a kind of auxiliary for optical-fibre communications covering Constructing device, including car body, the car body upper end are welded with rotation seat, and portable pillar is rotatably connected on the rotation seat, described Car body upper end is connected with the first mounting base, and hydraulic cylinder, the driving end of the hydraulic cylinder are movably installed in first mounting base It being flexibly connected with movable column bottom, the portable pillar side wall is fixedly connected with the first limit base and the second limit base, and described second The first rotation chamber and the second rotation chamber, the first rotation chamber of first limit base and the second limit base are offered inside limit base Between jointly through being rotatably connected to the first rotating bar, the car body surface is also fixedly installed with the first fixing seat, described first First bevel gear is welded on fixing seat side wall, and the wheel shaft of first bevel gear and the axis of rotation seat are located along the same line, The both ends difference fixing sleeve of first rotating bar is equipped with second bevel gear and third hand tap gear, the second bevel gear and first Bevel gear engagement and angle vertical, are also rotatably connected to the second rotating bar on the portable pillar side wall, in second rotating bar Fixing sleeve is equipped with the 4th bevel gear, and the 4th bevel gear engages with third hand tap gear and angle vertical, second rotating bar One end far from portable pillar side wall is through the second rotation chamber and is welded with support column, and the upper end of support column fixation is supported by work Platform, the worktable upper surface are equipped with arranging mechanism and sandwiched mechanism.

In the above-mentioned auxiliary construction device for optical-fibre communications covering, the arranging mechanism includes that workbench upper end is solid The fixed column connect, the fixed column upper end are welded with the second mounting base, are welded with first gear on the second mounting base side wall, On the second mounting base side wall also with first gear is concentric is rotatably connected to a rotation axis, fixing sleeve in the rotation axis It is connected to square rotating turret, second gear is rotatably connected to by shaft in the diagonal line bar of the square rotating turret, and the Two gears are engaged with first gear, are also rotated coaxially with second gear in the diagonal line bar of the square rotating turret and are connected with the One synchronizing wheel, the quadrangle of the square rotating turret are rotatably connected to second synchronizing wheel respectively, and four described second synchronize It is engaged with a synchronous belt jointly between wheel and the first synchronizing wheel, the hub surface of each second synchronizing wheel is welded with one Horizontally disposed instrument cases.

In the above-mentioned auxiliary construction device for optical-fibre communications covering, the sandwiched mechanism includes end edge on workbench Two iron stands that edge is symmetrical set, each iron stand upper end are equipped with a third mounting base, and each third Mounting base bottom is fixedly connected to magnet, and each third mounting base upper end is fixedly installed with electric pushrod, the electricity Be welded with handle on the side wall of dynamic push rod, the output end of each electric pushrod be fixedly connected to one it is horizontally disposed Attachment base, each attachment base upper end are symmetrically rotatably connected to two pieces of first clamping plates, and every piece of first clamping plate is far from even One end of joint chair is fixedly connected to one piece of second clamping plate being obliquely installed, and every piece of second clamping plate side wall is also fixedly connected Have one piece of third clamping plate, and be located at the same side third clamping plate and second clamping plate angle it is vertical, each attachment base upper end It is also fixedly connected with a link block, is fixedly connected to reset bullet between each link block and two pieces of first clamping plates Spring, the first clamping plate lateral wall on the right side of each attachment base upper end are fixedly connected to a sling, each rope It buckles and is fixedly connected to a drawstring, each third mounting base upper end is fixedly installed with a reel, every institute It states the one end of drawstring far from sling correspondence to be wound around on reel, and wheel shaft one end of each reel is welded with crank.

In the above-mentioned auxiliary construction device for optical-fibre communications covering, the first gear and second gear number of teeth phase Together, first synchronizing wheel is identical as the second synchronous tooth number.

In the above-mentioned auxiliary construction device for optical-fibre communications covering, the second bevel gear and third hand tap gear tooth Number is identical, and the 4th bevel gear is identical as the first bevel gear number of teeth.

In the above-mentioned auxiliary construction device for optical-fibre communications covering, the workbench upper end-face edge is fixedly mounted There is anti-drop net.

Compared with prior art, the advantages of this auxiliary construction device covered for optical-fibre communications, is:

1, it pushes portable pillar to rotate integrally by driving hydraulic cylinder to drive the height of workbench constantly to rise, pass through setting four The rotation angle that a bevel gear carries out transmission when increasing the rotation angle of portable pillar and worktable rotary is identical always, to make Workbench remains initial level state, construction height required for reaching convenient for construction personnel, more convenient safety；

2, it is put by four instrument cases of setting to carry out classification to the tool used required for construction, by pulling pros The position of four instrument cases can be adjusted in shape rotating turret, without bending over when construction personnel takes tool, rotated square is only needed to turn Moving frame can take the tool in the instrument cases of the top, and tools sort is put, and look for more convenient；

3, first clamping plate, second clamping plate and third clamping plate is cooperated to use by setting reset spring and drawstring, it can be to needs Cable the end of a thread of replacement carries out sandwiched, prevents from mopping floor, and the magnet by the way that third mounting base bottom is arranged in cooperates iron stand to use, It can prevent cable from hanging from above, make to impact pedestrian in work progress.

In conclusion the present invention can make construction personnel conveniently reach required construction height, without climbing staircase up and down, More convenient safety；The tools sort used required in construction personnel's work progress can be put, look for fast, take more Add conveniently, so that construction efficiency is higher；Old-fashioned cable the end of a thread when can prevent maintenance from constructing simultaneously under replacement is mopped floor or is hung from above Pedestrian is damaged, safety is higher.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of auxiliary construction device for optical-fibre communications covering proposed by the present invention；

Fig. 2 is the structure of activity post part in a kind of auxiliary construction device for optical-fibre communications covering proposed by the present invention Top view；

Fig. 3 is the structure of workbench portion in a kind of auxiliary construction device for optical-fibre communications covering proposed by the present invention Top view；

Fig. 4 is that the structure of arranging mechanism in a kind of auxiliary construction device for optical-fibre communications covering proposed by the present invention is shown It is intended to；

Fig. 5 is square rotating turret part in a kind of auxiliary construction device for optical-fibre communications covering proposed by the present invention Structural schematic diagram；

Fig. 6 is that the structure of sandwiched mechanism in a kind of auxiliary construction device for optical-fibre communications covering proposed by the present invention is shown It is intended to.

In figure: 1 car body, 2 rotation seats, 3 portable pillars, 4 first mounting bases, 5 hydraulic cylinders, 6 first limit bases, 7 second limits Seat, 8 first rotation chambers, 9 second rotation chambers, 10 first rotating bars, 11 first fixing seats, 12 first bevel gears, 13 second cone teeth Wheel, 14 third hand tap gears, 15 second rotating bars, 16 the 4th bevel gears, 17 support columns, 18 workbench, 19 fixed columns, 20 second peaces Fill seat, 21 first gears, 22 rotation axis, 23 square rotating turrets, 24 second gears, 25 first synchronizing wheels, 26 second synchronizing wheels, 27 synchronous belts, 28 instrument cases, 29 iron stands, 30 third mounting bases, 31 magnet, 32 electric pushrods, 33 attachment bases, 34 first folders Plate, 35 second clamping plates, 36 third clamping plates, 37 link blocks, 38 reset springs, 39 slings, 40 drawstrings, 41 reels, 42 cranks, 43 Handle, 44 anti-drop nets.

Specific embodiment

Following embodiment only exists in illustrative purpose, limits the scope of the invention without being intended to.

Embodiment

Referring to Fig.1-6, a kind of auxiliary construction device for optical-fibre communications covering, including car body 1, the welding of 1 upper end of car body There is rotation seat 2, be rotatably connected to portable pillar 3 on rotation seat 2,1 upper end of car body is connected with the first mounting base 4, in the first mounting base 4 It is movably installed with hydraulic cylinder 5, the driving end of hydraulic cylinder 5 is flexibly connected with 3 bottom of portable pillar, and 3 side wall of portable pillar is fixedly connected with First limit base 6 and the second limit base 7 offer the first rotation chamber 8 and the second rotation chamber 9, the first limit inside second limit base 7 Jointly through the first rotating bar 10 is rotatably connected between position seat 6 and the first rotation chamber 8 of the second limit base 7,1 surface of car body is also It is fixedly installed with the first fixing seat 11, is welded with first bevel gear 12 on 11 side wall of the first fixing seat, and first bevel gear 12 The axis of wheel shaft and rotation seat 2 is located along the same line, and the both ends difference fixing sleeve of the first rotating bar 10 is equipped with second bevel gear 13 and third hand tap gear 14, second bevel gear 13 is engaged with first bevel gear 12 and angle vertical, also rotates on 3 side wall of portable pillar It is connected with the second rotating bar 15, fixing sleeve is equipped with the 4th bevel gear 16 in the second rotating bar 15, and the 4th bevel gear 16 is bored with third The engagement of gear 14 and angle vertical, the one end of the second rotating bar 15 far from 3 side wall of portable pillar is through the second rotation chamber 9 and is welded with Support column 17, the fixation of 17 upper end of support column are supported by workbench 18, and second bevel gear 13 is identical as 14 number of teeth of third hand tap gear, the Four bevel gears 16 are identical as 12 number of teeth of first bevel gear, make 3 He of portable pillar along the rotation uphill process of rotation seat 2 of portable pillar 3 The rotation angle of workbench 18 is identical always, so that workbench 18 be made to remain initial level state, end edge on workbench 18 Edge is fixedly installed with anti-drop net 44, can protect to construction personnel's work progress, degree of safety is higher.

18 upper surface of workbench is equipped with arranging mechanism, and arranging mechanism includes the affixed fixed column 19 in 18 upper end of workbench, Gu 19 upper end of fixed column is welded with the second mounting base 20, and first gear 21, the second mounting base 20 are welded on 20 side wall of the second mounting base On side wall also with first gear 21 is concentric is rotatably connected to a rotation axis 22, fixing sleeve is connected to square and turns in rotation axis 22 Moving frame 23 is rotatably connected to second gear 24 by shaft in the diagonal line bar of square rotating turret 23, and second gear 24 with First gear 21 engages, and also rotates coaxially that be connected with first synchronous in the diagonal line bar of square rotating turret 23 with second gear 24 Wheel 25, the quadrangle of square rotating turret 23 are rotatably connected to second synchronizing wheel 26 respectively, four the second synchronizing wheels 26 and the A synchronous belt 27 is engaged between one synchronizing wheel 25 jointly, the hub surface of each second synchronizing wheel 26 is welded with a level The instrument cases 28 of setting, first gear 21 is identical as 24 number of teeth of second gear, 26 number of teeth of the first synchronizing wheel 25 and the second synchronizing wheel It is identical, it is remained just during so that instrument cases 28 is rotated with the second synchronizing wheel 26 and is rotated simultaneously with square rotating turret 23 Beginning horizontality.

18 upper surface of workbench is additionally provided with sandwiched mechanism, and sandwiched mechanism includes that 18 upper end-face edge of workbench is symmetrical set Two iron stands 29, each 29 upper end of iron stand is equipped with a third mounting base 30, and each 30 bottom of third mounting base It is fixedly connected to magnet 31, each 30 upper end of third mounting base is fixedly installed with electric pushrod 32, the side of electric pushrod 32 Handle 43 is welded on wall, the output end of each electric pushrod 32 is fixedly connected to a horizontally disposed attachment base 33, Each 33 upper end of attachment base is symmetrically rotatably connected to two pieces of first clamping plates 34, every piece of first clamping plate 34 far from attachment base 33 one End is fixedly connected to one piece of second clamping plate being obliquely installed 35, and every piece of 35 side wall of second clamping plate is also fixedly connected with one piece the Three-ply board 36, and the third clamping plate 36 and 35 angle of second clamping plate that are located at the same side are vertical, each 33 upper end of attachment base and also It is fixedly connected with a link block 37, is fixedly connected to reset spring between each link block 37 and two pieces of first clamping plates 34 38,34 lateral wall of first clamping plate on the right side of each 33 upper end of attachment base is fixedly connected to a sling 39, each sling It is fixedly connected to a drawstring 40 on 39, each 30 upper end of third mounting base is fixedly installed with a reel 41, and every The one end of drawstring 40 far from sling 39 correspondence is wound around on reel 41, and wheel shaft one end of each reel 41 is welded with Crank 42.

When utilizing the present invention, work progress can be needed the tool used to be placed by classification in pros in advance by construction personnel In four instrument cases 28 on shape rotating turret 23, after construction personnel drives at the cement pole constructed needed for car body 1 reaches, upper work of standing Make platform 18, the driving end elongation of driving hydraulic cylinder 5 pushes portable pillar 3 is whole to rotate along rotation seat 2, workbench 18 in rotary course Height constantly increase, since the first bevel gear 12 welded in second bevel gear 13 and the first fixing seat 11 engages, portable pillar 3 Second bevel gear 13 can be rotated around first bevel gear 12 when integral-rotation, and the rotation of second bevel gear 13 makes 10 He of the first rotating bar Third hand tap gear 14 rotates with it, and the rotation of third hand tap gear 14 drives the 4th bevel gear 16 rotation of engagement, to make second turn Lever 15 rotates, since second bevel gear 13 is identical as 14 number of teeth of third hand tap gear, the 4th bevel gear 16 and first bevel gear 12 The number of teeth is identical, and portable pillar 3 portable pillar 3 and rotation angle of workbench 18 along the rotation uphill process of rotation seat 2 is identical always, Workbench 18 remains initial level state, so as to which construction personnel to be promoted to required construction height；

When construction personnel needs to take the tool in instrument cases 28, square rotating turret 23 is pulled, square rotation is made Frame 23 rotates, and since first gear 21 is fixed, second gear 24 is engaged with first gear 21, the diagonal line bar of square rotating turret 23 On second gear 24 around first gear 21 rotate, since second gear 24 and the first synchronizing wheel 25 are coaxial, the first synchronizing wheel 25 rotations, the rotation of the first synchronizing wheel 25 drives four the second synchronizing wheel 27 rotations under the action of synchronous belt 27, due to the first tooth And 24 number of teeth of second gear is identical and the first synchronizing wheel 25 is identical as 26 number of teeth of the second synchronizing wheel for wheel 21, square rotating turret 23 Rotational steps and the rotation amplitude of four the second synchronizing wheels 26 are equal always and contrary, so as to make tool box 28 with The rotation of two synchronizing wheels 26 remains initial level state during simultaneously rotating simultaneously with square rotating turret 23, guarantees tool Tool in box 28 is not fallen out；Without bending over when construction personnel takes tool, only need rotated square rotating turret 23 i.e. desirable With the tool in the instrument cases 28 of the top, and tools sort is put, and is looked for more convenient；

When construction personnel, which overhauls fiber box, needs replacing optical cable, the handle 43 of 32 side wall of electric pushrod is carried by the Three mounting base 30 is whole to have carried, and the output end elongation of driving electric pushrod 32 makes two pieces of second clamping plates 35 of 33 upper end of attachment base Cable is contacted, then shakes crank 42 and tightens drawstring 40, the first clamping plate 34 that side is connect with drawstring 40 and second clamping plate 35 are drawn It opens, enters cable between two pieces of second clamping plates 35 and third clamping plate 36, then loosen drawstring 40, make the first clamping plate 34 being opened Effect with second clamping plate 35 by reset spring 38 is tightened, and cable is folded between two second clamping plates 35 and third clamping plate 36 Rectangular space in, cable can be removed and prevent cable the end of a thread from mopping floor, then put back to brandreth for third mounting base 30 is whole 29 upper end of platform, since the magnetic action of magnet 31 can make 30 monolithic stability of third mounting base be adsorbed on 29 upper end of iron stand, thus Prevent cable from hanging from above.

Although car body 1, rotation seat 2, portable pillar 3, the first mounting base 4, hydraulic cylinder 5, first is used more herein to limit Position seat 6, the second limit base 7, first rotation chamber 8, second rotate chamber 9, the first rotating bar 10, the first fixing seat 11, first and bore tooth Wheel 12, third hand tap gear 14, the second rotating bar 15, the 4th bevel gear 16, support column 17, workbench 18, is consolidated second bevel gear 13 Fixed column 19, the second mounting base 20, first gear 21, rotation axis 22, square rotating turret 23, second gear 24, the first synchronizing wheel 25, the second synchronizing wheel 26, synchronous belt 27, instrument cases 28, iron stand 29, third mounting base 30, magnet 31, electric pushrod 32, company Joint chair 33, first clamping plate 34, second clamping plate 35, third clamping plate 36, link block 37, reset spring 38, sling 39, drawstring 40, around The terms such as line wheel 41, crank 42, handle 43, anti-drop net 44, but it does not exclude the possibility of using other terms.Use these arts Language is only for the convenience of describing and explaining the nature of the invention；Being construed as any additional limitation is all It is disagreed with spirit of that invention.

Claims

1. a kind of auxiliary construction device for optical-fibre communications covering, including car body (1), which is characterized in that on the car body (1) End is welded with rotation seat (2), is rotatably connected to portable pillar (3) on the rotation seat (2), and car body (1) upper end is connected with the One mounting base (4) is movably installed with hydraulic cylinder (5) on first mounting base (4), the driving end of the hydraulic cylinder (5) and work Dynamic column (3) bottom is flexibly connected, and portable pillar (3) side wall is fixedly connected with the first limit base (6) and the second limit base (7), Offer the first rotation chamber (8) and the second rotation chamber (9) inside second limit base (7), first limit base (6) and the Run through jointly between first rotation chamber (8) of two limit bases (7) and is rotatably connected to the first rotating bar (10), car body (1) table Face is also fixedly installed with the first fixing seat (11), is welded with first bevel gear (12) on the first fixing seat (11) side wall, and The wheel shaft of first bevel gear (12) and the axis of rotation seat (2) are located along the same line, the both ends of first rotating bar (10) Fixing sleeve is equipped with second bevel gear (13) and third hand tap gear (14), the second bevel gear (13) and first bevel gear respectively (12) engagement and angle vertical are also rotatably connected to the second rotating bar (15) on portable pillar (3) side wall, second rotation Fixing sleeve is equipped with the 4th bevel gear (16) on bar (15), and the 4th bevel gear (16) is engaged with third hand tap gear (14) and angle Vertically, the one end of second rotating bar (15) far from portable pillar (3) side wall through the second rotation chamber (9) and is welded with support column (17), support column (17) the upper end fixation is supported by workbench (18), and workbench (18) upper surface is equipped with arranging mechanism With sandwiched mechanism.

2. a kind of auxiliary construction device for optical-fibre communications covering according to claim 1, which is characterized in that the pendulum Laying mechanism includes the affixed fixed column (19) in workbench (18) upper end, and fixed column (19) upper end is welded with the second mounting base (20), be welded with first gear (21) on the second mounting base (20) side wall, on the second mounting base (20) side wall also with First gear (21) is concentric to be rotatably connected to a rotation axis (22), and fixing sleeve is connected to square and turns on the rotation axis (22) Moving frame (23) is rotatably connected to second gear (24) in the diagonal line bar of the square rotating turret (23) by shaft, and the Two gears (24) are engaged with first gear (21), it is described square rotating turret (23) diagonal line bar on also with second gear (24) It rotates coaxially and is connected with the first synchronizing wheel (25), the quadrangle of the square rotating turret (23) is rotatably connected to one second respectively Synchronizing wheel (26) is engaged with a synchronous belt (27) between four second synchronizing wheels (26) and the first synchronizing wheel (25) jointly, The hub surface of each second synchronizing wheel (26) is welded with a horizontally disposed instrument cases (28).

3. a kind of auxiliary construction device for optical-fibre communications covering according to claim 1, which is characterized in that the folder If mechanism includes two iron stands (29) that workbench (18) upper end-face edge is symmetrical set, on each iron stand (29) End is equipped with a third mounting base (30), and each third mounting base (30) bottom is fixedly connected to magnet (31), each Third mounting base (30) upper end is fixedly installed with electric pushrod (32), is welded on the side wall of the electric pushrod (32) Having handle (43), the output end of each electric pushrod (32) is fixedly connected to a horizontally disposed attachment base (33), The each attachment base (33) upper end is symmetrically rotatably connected to two pieces of first clamping plates (34), and every piece of first clamping plate (34) is remote One end from attachment base (33) is fixedly connected to one piece of second clamping plate being obliquely installed (35), every piece of second clamping plate (35) Side wall is also fixedly connected with one piece of third clamping plate (36), and is located at third clamping plate (36) and second clamping plate (35) angle of the same side Degree is vertical, and each attachment base (33) upper end is also fixedly connected with a link block (37), each link block (37) reset spring (38) are fixedly connected between two pieces of first clamping plates (34), are located at each attachment base (33) upper end First clamping plate (34) lateral wall on right side is fixedly connected to a sling (39), is fixedly connected on each sling (39) There is a drawstring (40), each third mounting base (30) upper end is fixedly installed with a reel (41), described in every The one end of drawstring (40) far from sling (39) correspondence is wound around on reel (41), and wheel shaft one end of each reel (41) It is welded with crank (42).

4. a kind of auxiliary construction device for optical-fibre communications covering according to claim 2, which is characterized in that described the One gear (21) is identical as second gear (24) number of teeth, and first synchronizing wheel (25) is identical as the second synchronizing wheel (26) number of teeth.

5. a kind of auxiliary construction device for optical-fibre communications covering according to claim 1, which is characterized in that described the Two bevel gears (13) are identical as third hand tap gear (14) number of teeth, the 4th bevel gear (16) and first bevel gear (12) number of teeth phase Together.

6. a kind of auxiliary construction device for optical-fibre communications covering according to claim 1, which is characterized in that the work Make platform (18) upper end-face edge and is fixedly installed with anti-drop net (44).