CN115102099A - Vertical cable laying device and method for high-rise building - Google Patents

Abstract

The invention discloses a vertical cable laying device for a high-rise building, which comprises a winch and a guide pulley block, wherein the guide pulley block comprises an upper arc-shaped plate and a lower arc-shaped plate, the upper arc-shaped plate and the lower arc-shaped plate are connected through a connecting frame, the upper end of the upper arc-shaped plate is provided with a lifting lug, and the lifting lug is connected with a wire rope lock of the winch; the connecting frame is provided with an upper pulley block and a lower pulley block, the upper pulley block and the lower pulley block are both positioned between the upper arc-shaped plate and the lower arc-shaped plate, the upper pulley block comprises at least four upper pulleys, each upper pulley of the upper pulley block is sequentially arranged along the arc direction of the upper arc-shaped plate, the lower pulley block comprises at least four lower pulleys, and each lower pulley of the lower pulley block is sequentially arranged along the arc direction of the lower arc-shaped plate; the invention utilizes the winch and the guide pulley block to lay the cable from bottom to top, can lay and fix the cable at the same time, can effectively reduce the dead weight of the cable in the laying process, solves the problem of over-heavy dead weight of the cable, and also has the advantages of saving construction period and saving the cable.

Description

Vertical cable laying device and method for high-rise building

Technical Field

The invention relates to the technical field of cable laying, in particular to a vertical cable laying device and method for a high-rise building.

Background

At the present stage, when a high-rise building is designed, a power transformation and distribution substation is generally arranged at a position with a relatively low height, and all auxiliary power substations are distributed in a dispersed manner, but the power utilization tail ends are distributed in all floors of the high-rise building. Therefore, cables need to be laid from the feeder cabinets to the floor distribution boxes, and the cables are vertically laid in the hoistway of the power well. Four methods of vertical cabling are currently known for high-rise buildings.

The first is a method of distributing a plurality of resultant pulls along the laying path. The method is suitable for the conditions that the height of a floor is not high (below 10 floors) and the cross section of the cable is relatively small, the laying mode not only consumes time and labor and much manpower, but also easily damages the cable sheath and easily damages the bridge.

The second method is that the electric hoister is used to upwards tow the cable by using the steel rope to bundle the cable, which is suitable for the condition of relatively high floor (10-30 floors) and any cable section, and has the advantages of reducing cable joints, reducing cost and saving construction period. However, the laying method has a series of problems, on one hand, the vertical cable is heavy to lay at one time and is easy to be damaged by self weight; on the other hand, in a hoistway where the number of cables is dense, the cable insulation sheath is easily scratched and damaged by the opening.

The third method is to lay vertical cables by a damping buffer method, wherein the damping buffer method is to convey the cables from top to bottom by utilizing high potential energy, and damping buffers are arranged in sections to ensure the safe lowering speed of the cables. The device for laying the vertical cable by the damping buffer method is simple, low in cost, less in labor, safe and capable of effectively avoiding cable damage. But the requirement on the operation proficiency of constructors is high, the requirement on site conditions and construction organizations is high, and the construction site needs to have the condition that cables can be transported upstairs.

And the fourth method is suitable for the vertical laying method of the suspended cable, the suspended cable is a cable with a special structure, the cable is provided with 3 steel wire ropes in a vertical laying section and is provided with a hoisting disc, the steel wire ropes are coated by sector plastic and are stranded with three cable cores, and the cable in a horizontal laying section is not provided with the steel wire ropes. The suspended cable is a new material, can replace the traditional armored power cable, can bear larger tension, has uniform stress on the cable body, can be laid according to a conventional method, does not need to consider super-high-rise factors, has small space and high efficiency required by laying and installation, but has the defects of long purchase period and high cost.

In order to overcome the defects of the four laying methods, the applicant provides a vertical cable laying device and method for a high-rise building.

Disclosure of Invention

The invention aims to provide a vertical cable laying device and a laying method for a high-rise building, which lay and fix cables from bottom to top, effectively reduce the dead weight of the cables in the laying process, solve the problem of over-heavy dead weight of the cables, and simultaneously have the advantages of saving construction period and cables.

The purpose of the invention is realized as follows:

a vertical cable laying device for a high-rise building comprises a winch and a guide pulley block, wherein the guide pulley block comprises an upper arc-shaped plate and a lower arc-shaped plate, the upper arc-shaped plate and the lower arc-shaped plate are connected through a connecting frame, a lifting lug is arranged at the upper end of the upper arc-shaped plate, and the lifting lug is connected with a steel wire rope lock of the winch; the connecting frame is provided with an upper pulley group and a lower pulley group, the upper pulley group and the lower pulley group are both located between the upper arc plate and the lower arc plate, the upper pulley group comprises at least four upper pulleys, each upper pulley of the upper pulley group is sequentially arranged along the arc direction of the upper arc plate, the lower pulley group comprises at least four lower pulleys, and each lower pulley of the lower pulley group is sequentially arranged along the arc direction of the lower arc plate.

The wheel axle of each lower pulley of the lower pulley block is positioned on a virtual circular arc, and the curvature radius of the virtual circular arc is not less than 1.4 m.

An upper elastic pulley block is arranged on the upper arc-shaped plate and comprises a plurality of upper elastic pulleys, an upper elastic pulley is arranged between every two adjacent upper pulleys and comprises an upper guide rod, an upper pressing pulley and an upper pressing spring, a guide hole for the upper guide rod to pass through is formed in the upper arc-shaped plate, the upper end of the upper guide rod is positioned on the upper side of the upper arc-shaped plate, and a limiting block which cannot pass through the guide hole of the upper arc-shaped plate is connected with the upper end of the upper guide rod in a threaded mode; the lower end of the upper guide rod is positioned at the lower side of the upper arc-shaped plate, the upper pressing pulley is arranged at the lower end of the upper guide rod, and the upper pressing spring is sleeved on the upper guide rod and positioned between the upper arc-shaped plate and the upper pressing pulley; the lower arc-shaped plate is provided with a lower elastic pulley block, the lower elastic pulley block comprises a plurality of lower elastic pulleys, a lower elastic pulley is arranged between two adjacent lower pulleys and comprises a lower guide rod, a lower pressing pulley and a lower pressing spring, the lower arc-shaped plate is provided with a guide hole for the lower guide rod to pass through, the lower end of the lower guide rod is positioned at the lower side of the lower arc-shaped plate, and the lower end of the lower guide rod is in threaded connection with a limiting block which cannot pass through the guide hole of the lower arc-shaped plate; the upper end of the lower guide rod is positioned on the upper side of the lower arc-shaped plate, the lower pressing pulley is arranged at the upper end of the lower guide rod, and the lower pressing spring is sleeved on the lower guide rod and positioned between the lower arc-shaped plate and the lower pressing pulley; the outer diameters of the upper pulley and the lower pulley are the same, and the outer diameters of the upper pressing pulley and the lower pressing pulley are the same and are both smaller than the outer diameters of the upper pulley and the lower pulley.

Still include straightening mechanism in addition, straightening mechanism includes fixed knot structure and presss from both sides tight structure, fixed knot constructs and can be fixed in the wall of a well of high-voltage electricity well on, the last vertical screw rod that is provided with of fixed knot constructs, install adjusting nut on the screw rod, the cover is equipped with the direction pipe on the screw rod, the direction pipe links to each other with the tight structure of clamp, it is used for pressing from both sides tight cable to press from both sides tight structure.

The clamping structure comprises two semicircular pipes which are hinged with each other, a clamping rubber layer is arranged on the inner wall of each semicircular pipe, and the non-hinged sides of the two semicircular pipes are connected through bolts and nuts; and in the two semicircular pipes of the clamping structure, the outer wall of one semicircular pipe is connected with the guide circular pipe through a connecting rod.

The inner diameter of the guide circular tube is equal to the outer diameter of the adjusting nut, and the upper end and the lower end of the inner wall of the guide circular tube are both provided with a fillet structure.

The upper arc-shaped plate is provided with an upper clamping piece, the upper clamping piece comprises an upper clamping screw, an upper rotating buckle and an upper clamping arc-shaped plate, the upper arc-shaped plate is provided with a threaded through hole for the upper clamping screw to be installed, and the upper clamping arc-shaped plate is positioned on the lower side of the upper arc-shaped plate and is connected with the upper clamping screw through the upper rotating buckle; the lower arc-shaped plate is provided with a lower clamping piece, the lower clamping piece comprises a lower clamping screw, a lower rotating buckle and a lower clamping arc-shaped plate, a threaded through hole for mounting the lower clamping screw is formed in the lower arc-shaped plate, and the lower clamping arc-shaped plate is positioned on the upper side of the lower arc-shaped plate and is connected with the upper clamping screw through the upper rotating buckle; the upper clamping piece and the lower clamping piece are arranged in a one-to-one correspondence mode, the upper clamping piece and the lower clamping piece are correspondingly arranged, and the upper clamping screw and the lower clamping screw share the central axis.

A first method for laying vertical cables in a high-rise building specifically comprises the following steps:

the method comprises the following steps: preparing a winch, a guide pulley block and a cable drum, fixing the winch at the upper end of a well of the high-voltage well, connecting the guide pulley block with a steel wire rope lock of the winch, transporting the cable drum to a horizontal and vertical turning position of a cable, and erecting and fixing the cable drum firmly by using a cable support frame;

step two: pulling out a cable head, penetrating the cable head through an upper pulley block and a lower pulley block of a guide pulley block, then laying a cable horizontal section along a horizontal bridge, laying the cable head into a feeder cabinet of a power transformation and distribution room, reserving a cable with a certain length in the power transformation and distribution room according to actual needs, and fixing the part of the reserved cable at the horizontal and vertical turning part of the cable firmly;

step three: pulling out a certain length of cable from the cable reel, starting a winch, driving a guide pulley block to ascend by the winch, driving the cable to ascend by the guide pulley block, and laying the cable which is driven to ascend by the guide pulley block into a vertical bridge;

step four: after the part of the cable pulled out from the cable reel in the third step, which can be laid in the vertical bridge, is completely laid in the vertical bridge, stopping the winch, and fixing the cable laid in the vertical bridge;

step five: and repeating the third step and the fourth step until the vertical cable laying is finished.

A second method for laying vertical cables in a high-rise building specifically comprises the following steps:

the method comprises the following steps: preparing a winch, a guide pulley block and a cable drum, fixing the winch at the upper end of a well of the high-voltage well, connecting the guide pulley block with a steel wire rope lock of the winch, transporting the cable drum to a horizontal and vertical turning position of a cable, and erecting and fixing the cable drum firmly by using a cable support frame;

step two: pulling out a cable head, enabling the cable head to penetrate through an upper pulley block and a lower pulley block of a guide pulley block, then laying a cable horizontal section along a horizontal bridge, laying the cable head into a feeder cabinet of a power transformation and distribution room, reserving a cable with a certain length in the power transformation and distribution room according to actual needs, and fixing the part of the reserved cable at the horizontal and vertical turning positions of the cable firmly;

step three: a certain length of cable is pulled out from the cable reel, a winch is started, the winch drives a guide pulley block to ascend, the guide pulley block drives the cable to ascend, and the guide pulley block drives the ascending cable to be laid in the vertical bridge;

step four: after the part of the cable pulled out of the cable reel in the third step, which can be laid in the vertical bridge, is completely laid in the vertical bridge, the winch is stopped, the straightening mechanism is used for straightening the part of the cable laid in the vertical bridge, when the cable is straightened, the fixing structure is fixed on the wall of the high-voltage well, then the clamping structure is used for clamping the cable, the adjusting nut is screwed, and the adjusting nut drives the guide circular tube and the clamping structure to move upwards so as to straighten the cable; after the cable is straightened, fixing the cable laid in the vertical bridge;

step five: and repeating the third step and the fourth step until the vertical cable is laid.

The third method for laying the vertical cable of the high-rise building specifically comprises the following steps:

the method comprises the following steps: preparing a winch, a guide pulley block and a cable drum, fixing the winch at the upper end of a well of the high-voltage well, connecting the guide pulley block with a steel wire rope lock of the winch, transporting the cable drum to a horizontal and vertical turning position of a cable, and erecting and fixing the cable drum firmly by using a cable support frame;

step two: pulling out a cable head, enabling the cable head to penetrate through an upper pulley block and a lower pulley block of a guide pulley block, then laying a cable horizontal section along a horizontal bridge, laying the cable head into a feeder cabinet of a power transformation and distribution room, reserving a cable with a certain length in the power transformation and distribution room according to actual needs, and fixing the part of the reserved cable at the horizontal and vertical turning positions of the cable firmly;

step three: a certain length of cable is pulled out from the cable reel, a winch is started, the winch drives a guide pulley block to ascend, the guide pulley block drives the cable to ascend, and the guide pulley block drives the ascending cable to be laid in the vertical bridge;

step four: after the cable pulled out of the cable drum from the cable drum can be laid in the vertical bridge frame completely, the winch is stopped, the cable is fixed through the upper clamping piece and the lower clamping piece, the winch is started to drive the guide pulley block to move upwards slowly, the cable can be straightened continuously at the moment, the winch is stopped again after the cable is straightened, and the cable laid in the vertical bridge frame is fixed in the vertical bridge frame;

step five: and repeating the third step and the fourth step until the vertical cable laying is finished.

Has the positive and beneficial effects that: 1. the invention utilizes the winch and the guide pulley block to lay the cable from bottom to top, can lay and fix the cable at the same time, can effectively reduce the dead weight of the cable in the laying process, and solves the problem of over-heavy dead weight of the cable. 2. The laying method provided by the invention can lay the cable in place at one time, and the construction period is saved. 3. The invention can realize that the cables are required to be released in time on the line from the feeder cabinet of the distribution station to the tail end, the cables do not need to be cut off according to the length calculated by a drawing, the surplus cables on each loop can be concentrated together to the greatest extent, and the cables are saved. 4. Through setting up straightening mechanism or upper clamping piece and lower clamping piece, can straighten the cable, further practiced thrift the cable. 5. The elastic pulley block is additionally arranged on the guide pulley block, so that the cable laying device is suitable for laying cables with larger diameters and cables with smaller diameters, and the applicability of the cable laying device is effectively improved.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

fig. 2 is a schematic structural view of a guide pulley block according to embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a guide pulley block according to embodiment 2 of the present invention;

fig. 4 is a front view of the straightening mechanism according to embodiment 2 of the present invention;

fig. 5 is a side view of the straightening mechanism of embodiment 2 of the present invention;

fig. 6 is a schematic cross-sectional view of a guide round tube of the straightening mechanism according to embodiment 2 of the present invention;

FIG. 7 is a schematic view of the straightening mechanism according to embodiment 2 of the present invention in use;

fig. 8 is a schematic structural view of a guide pulley block in embodiment 3 of the present invention.

In the figure, the following steps are carried out: 1. a winch; 2. a guide pulley block; 3. an upper arc plate; 4. a lower arc-shaped plate; 5. a connecting frame; 6. lifting lugs; 7. a wire rope lock; 8. an upper pulley; 9. a lower pulley; 10. a virtual arc; 11. a fixed structure; 12. a screw; 13. adjusting the nut; 14. a guide circular tube; 15. a clamping structure; 16. a fillet structure; 17. an upper guide bar; 18. an upper pressing pulley; 19. an upper hold-down spring; 20. a lower guide bar; 21. a lower compression pulley; 22. a lower compression spring; 23. an upper clamp member; 24. a lower clamp member; 100. and (3) a cable.

Detailed Description

The following further description is made with reference to the accompanying drawings and specific examples:

example 1

As shown in fig. 1 and 2, the vertical cable laying device for the high-rise building comprises a winch 1 and a guide pulley block 2, wherein the guide pulley block 2 comprises an upper arc plate 3 and a lower arc plate 4, the upper arc plate 3 is connected with the lower arc plate 4 through a connecting frame 5, a lifting lug 6 is arranged at the upper end of the upper arc plate 3, and the lifting lug 6 is connected with a wire rope lock 7 of the winch 1. Be provided with upper pulley group and lower pulley group on link 5, upper pulley group and lower pulley group all are located between arc 3 and the lower arc 4, and upper pulley group includes four upper pulleys 8, and each upper pulley 8 of upper pulley group evenly sets up along the circular arc direction of upper arc 3 in proper order, and lower pulley group includes four lower pulleys 9, and each lower pulley 9 of lower pulley group evenly sets up along the circular arc direction of lower arc 4 in proper order. When the guide pulley block 2 is used, the cable 100 passes through the upper pulley block and the lower pulley block, the length direction of the cable 100 can be changed through the guide pulley block 2, the upper pulley 8 and the lower pulley 9 rotate when the cable 100 is lifted, the cable 100, the upper pulley 8 and the lower pulley 9 are in rotational friction, friction is small, and the cable 100 cannot be scratched.

The common cable is a copper conductor, the mineral insulated cable is a copper nested cable, the bending has certain deflection, and a larger bending radius is required. The minimum bending required for the conventional cable and mineral insulated cable is found in the field with actual measurements as shown in the following table:

therefore, in order to meet the use requirement, the wheel axle of each lower pulley 9 of the lower pulley set is positioned on a virtual circular arc 10, and the curvature radius of the virtual circular arc 10 is not less than 1.4 meters.

The method for laying the vertical cable of the high-rise building by using the embodiment comprises the following steps:

the method comprises the following steps: preparing a winch 1, a guide pulley block 2 and a cable reel, fixing the winch 1 at the upper end of a well of a high-voltage well, connecting the guide pulley block 2 with a steel wire rope lock 7 of the winch 1, transporting the cable reel to a cable level and a vertical turning position, and erecting and fixing the cable reel firmly by a cable supporting frame.

Step two: laying of a horizontal section of cable required by a feeder cabinet connected to a power transformation and distribution room, pulling out a cable head, penetrating through an upper pulley block and a lower pulley block of a guide pulley block 2, laying of a horizontal section of the cable along a horizontal bridge, laying the cable head into the feeder cabinet of the power transformation and distribution room, reserving a cable with a certain length in the power transformation and distribution room according to actual needs, and fixing the part of the reserved cable, which is positioned at the horizontal and vertical turning of the cable, firmly.

Step three: the cable of a certain length is pulled out from the cable drum, the winch 1 is started, the winch 1 drives the guide pulley block 2 to ascend, and the cable which is just pulled out from the cable drum can be driven to ascend when the guide pulley block 2 ascends due to the fact that the cable reserved in the power transformation and distribution room is fixed firmly, and the guide pulley block 2 drives the ascending cable to be laid in the vertical bridge.

Step four: and after the part of the cable pulled out from the cable reel in the third step, which can be laid in the vertical bridge, is completely laid in the vertical bridge, stopping the winch 1, and fixing the cable laid in the vertical bridge. This part is not the cable which is entirely pulled from the cable drum, since there is also a part on the other side of the guide pulley block 2.

Step five: and repeating the third step and the fourth step until the vertical cable laying is finished.

Example 2

Compared with the embodiment 1, the embodiment has two main differences, namely the structure of the guide pulley block 2 is different, and a straightening mechanism for straightening the cable is additionally arranged in the embodiment.

As shown in fig. 3, the guide pulley block 2 comprises an upper arc-shaped plate 3 and a lower arc-shaped plate 4, the upper arc-shaped plate 3 is connected with the lower arc-shaped plate 4 through a connecting frame 5, a lifting lug 6 is arranged at the upper end of the upper arc-shaped plate 3, and the lifting lug 6 is connected with a wire rope lock 7 of the winch 1. Be provided with upper pulley group and lower pulley group on link 5, upper pulley group and lower pulley group all are located between arc 3 and the lower arc 4, and upper pulley group includes four upper pulleys 8, and each upper pulley 8 of upper pulley group evenly sets up along the circular arc direction of upper arc 3 in proper order, and lower pulley group includes four lower pulleys 9, and each lower pulley 9 of lower pulley group evenly sets up along the circular arc direction of lower arc 4 in proper order. In addition, an upper elastic pulley block is arranged on the upper arc-shaped plate 3, the upper elastic pulley block comprises a plurality of upper elastic pulleys, an upper elastic pulley is arranged between two adjacent upper pulleys 8, the upper elastic pulley comprises an upper guide rod 17, an upper compression pulley 18 and an upper compression spring 19, a guide hole for the upper guide rod 17 to pass through is arranged on the upper arc-shaped plate 3, the upper end of the upper guide rod 17 is positioned on the upper side of the upper arc-shaped plate 3, and the upper end of the upper guide rod 17 is in threaded connection with a limiting block which cannot pass through the guide hole of the upper arc-shaped plate 3; the lower end of the upper guide rod 17 is positioned at the lower side of the upper arc-shaped plate 3, the upper pressing pulley 18 is arranged at the lower end of the upper guide rod 17, and the upper pressing spring 19 is sleeved on the upper guide rod 17 and positioned between the upper arc-shaped plate 3 and the upper pressing pulley 18; the lower arc-shaped plate 4 is provided with a lower elastic pulley block which comprises a plurality of lower elastic pulleys, a lower elastic pulley is arranged between two adjacent lower pulleys 9 and comprises a lower guide rod 20, a lower pressing pulley 21 and a lower pressing spring 22, a guide hole for the lower guide rod 20 to pass through is formed in the lower arc-shaped plate 4, the lower end of the lower guide rod 20 is located on the lower side of the lower arc-shaped plate 4, and the lower end of the lower guide rod 20 is in threaded connection with a limiting block which cannot pass through the guide hole of the lower arc-shaped plate 4. The upper end of the lower guide rod 20 is located at the upper side of the lower arc-shaped plate 4, the lower pressing pulley 21 is arranged at the upper end of the lower guide rod 20, and the lower pressing spring 22 is sleeved on the lower guide rod 20 and located between the lower arc-shaped plate 4 and the lower pressing pulley 21. The outer diameters of the upper pulley 8 and the lower pulley 9 are the same, and the outer diameters of the upper pressing pulley 18 and the lower pressing pulley 21 are the same and are smaller than the outer diameters of the upper pulley 8 and the lower pulley 9. The upper pulley 8 and the lower pulley 9 are suitable for laying cables with larger diameters, the upper pressing pulley 18 and the lower pressing pulley 21 are suitable for laying cables with smaller diameters, and the upper pressing pulley 18 and the lower pressing pulley 21 do not affect the laying of the cables with larger diameters by using the guide pulley block 2 due to the arrangement of the upper pressing spring 19 and the lower pressing spring 22. Therefore, the device is suitable for laying cables with larger diameters and cables with smaller diameters, and the applicability of the device is effectively improved.

As shown in fig. 4, 5 and 6, the straightening mechanism includes a fixed structure 11 and a clamping structure 15 for clamping the cable, the fixed structure 11 is an Contraband-shaped plate, a vertical plate of the Contraband-shaped plate is provided with a mounting through hole, and the fixed structure 11 can be fixed on a well wall of the power well through an expansion bolt. The upper end wall of the fixed structure 11 is vertically provided with a screw 12, the screw 12 is provided with an adjusting nut 13, and the screw 12 is sleeved with a guide circular tube 14. The clamping structure 15 comprises two semicircular pipes which are hinged with each other, a clamping rubber layer is arranged on the inner wall of each semicircular pipe, and one side of each semicircular pipe which is not hinged with each other is connected with each other through a bolt and a nut. Of the two semicircular tubes of the clamping structure 15, the outer wall of one of the semicircular tubes is connected with the circular guide tube 14 through a connecting rod. The internal diameter of the guide circular tube 14 is equal to the external diameter of the adjusting nut 13, the upper end and the lower end of the inner wall of the guide circular tube 14 are both provided with a fillet structure 16, and the fillet structure 16 can prevent the adjusting nut 13 from damaging the thread structure of the screw rod 12 when the adjusting nut 13 drives the guide circular tube 14 to move on the screw rod 12.

The method for laying the vertical cable of the high-rise building by using the embodiment comprises the following steps:

the method comprises the following steps: preparing a winch 1, a guide pulley block 2 and a cable reel, fixing the winch 1 at the upper end of a well of a high-voltage well, connecting the guide pulley block 2 with a steel wire rope lock 7 of the winch 1, transporting the cable reel to a cable level and a vertical turning position, and erecting and fixing the cable reel firmly by a cable supporting frame.

Step two: the laying of the required horizontal segment cable of access transformer substation distribution room feeder cabinet pulls out the cable head, passes in the upper pulley group and the lower pulley group of direction assembly pulley 2, then carries out the laying of cable horizontal segment along horizontal crane span structure, and the cable head is laid into transformer substation distribution room feeder cabinet, reserves the cable of certain length according to actual need in the transformer substation distribution room, and the part that will reserve the cable and be located cable level and vertical turn department is fixed firmly.

Step three: the cable of a certain length is pulled out from the cable drum, the winch 1 is started, the winch 1 drives the guide pulley block 2 to ascend, and the cable which is just pulled out from the cable drum can be driven to ascend when the guide pulley block 2 ascends due to the fact that the cable reserved in the power transformation and distribution room is fixed firmly, and the guide pulley block 2 drives the ascending cable to be laid in the vertical bridge.

Step four: after the cable pulled out from the cable reel in the third step can be laid in the vertical bridge frame, the winch 1 is stopped, the straightening mechanism is used for straightening the cable laid in the vertical bridge frame, when the cable is straightened, as shown in fig. 7, two straightening mechanisms are prepared, the straightening mechanisms are fixed on the well wall of the high-voltage well through the fixing structures 11, the cable is clamped through the clamping structures 15 of the two straightening mechanisms, and the two straightening mechanisms are used one above the other and are respectively positioned at the upper end and the lower end of the cable to be straightened. The adjusting nut 13 of the lower straightening mechanism is positioned on the upper side of the guide circular tube 14 and used for fixing the guide circular tube 14. The adjusting nut 13 of the straightening mechanism at the upper end is positioned at the lower side of the guide circular tube 14, the adjusting nut 13 is screwed, and the adjusting nut 13 drives the guide circular tube 14 and the clamping structure 15 to move upwards, so that the cable can be continuously straightened. And after the cable is straightened, fixing the cable laid in the vertical bridge.

Step five: and repeating the third step and the fourth step until the vertical cable laying is finished.

Compared with the embodiment 1, the straightening mechanism is arranged, so that the cable can be straightened when the vertical cable is laid, the use of the cable is effectively reduced, and the cost is saved.

Example 3

Compared with the embodiment 1, the structure of the guide pulley block 2 is different in the embodiment. As shown in fig. 8, the guide pulley block 2 includes an upper arc plate 3 and a lower arc plate 4, the upper arc plate 3 is connected with the lower arc plate 4 through a connecting frame 5, a lifting lug 6 is arranged at the upper end of the upper arc plate 3, and the lifting lug 6 is connected with a wire rope lock 7 of the winch 1. Be provided with upper pulley group and lower pulley group on link 5, upper pulley group and lower pulley group all are located between arc 3 and the lower arc 4, and upper pulley group includes four upper pulleys 8, and each upper pulley 8 of upper pulley group evenly sets up along the circular arc direction of upper arc 3 in proper order, and lower pulley group includes four lower pulleys 9, and each lower pulley 9 of lower pulley group evenly sets up along the circular arc direction of lower arc 4 in proper order. In addition, the upper arc-shaped plate 3 is provided with an upper clamping part 23, the upper clamping part 23 comprises an upper clamping screw, an upper rotating buckle and an upper clamping arc-shaped plate, the upper arc-shaped plate 3 is provided with a threaded through hole for the upper clamping screw to be installed, the upper clamping arc-shaped plate is positioned on the lower side of the upper arc-shaped plate 3, and the upper rotating buckle is connected with the upper clamping screw. Be provided with lower clamping piece 24 on the arc 4 down, lower clamping piece 24 includes down presss from both sides tight screw rod, rotates down and detains and press from both sides tight arc down, is provided with the screw thread through-hole that supplies down to press from both sides tight screw rod installation on the arc 4 down, presss from both sides tight arc down and is located the upside of arc 4 down, and detains through last rotation and last clamp screw rod links to each other. The upper clamping pieces 23 and the lower clamping pieces 24 are arranged in a one-to-one correspondence mode, the upper clamping pieces 23 and the lower clamping pieces 24 are arranged correspondingly, and the upper clamping screws and the lower clamping screws are arranged on the same central axis.

The method for laying the vertical cable of the high-rise building by using the embodiment comprises the following steps:

the method comprises the following steps: preparing a winch 1, a guide pulley block 2 and a cable reel, fixing the winch 1 at the upper end of a well of a high-voltage well, connecting the guide pulley block 2 with a steel wire rope lock 7 of the winch 1, transporting the cable reel to a cable level and a vertical turning position, and erecting and fixing the cable reel firmly by a cable supporting frame.

Step two: the laying of the required horizontal segment cable of access transformer substation distribution room feeder cabinet pulls out the cable head, passes in the upper pulley group and the lower pulley group of direction assembly pulley 2, then carries out the laying of cable horizontal segment along horizontal crane span structure, and the cable head is laid into transformer substation distribution room feeder cabinet, reserves the cable of certain length according to actual need in the transformer substation distribution room, and the part that will reserve the cable and be located cable level and vertical turn department is fixed firmly.

Step three: the cable of a certain length is pulled out from the cable drum, the winch 1 is started, the winch 1 drives the guide pulley block 2 to ascend, and the cable which is just pulled out from the cable drum can be driven to ascend when the guide pulley block 2 ascends due to the fact that the cable reserved in the power transformation and distribution room is fixed firmly, and the guide pulley block 2 drives the ascending cable to be laid in the vertical bridge.

Step four: after the cable pulled out from the cable reel in the third step can be laid in the vertical bridge completely, the winch 1 is stopped, the cable is fixed through the upper clamping piece 23 and the lower clamping piece 24, then the winch 1 is started, the winch 1 is started to drive the guide pulley block 2 to move slowly upwards, the cable can be straightened continuously at the moment, the winch 1 is stopped again after the cable is straightened, and the cable laid in the vertical bridge is fixed in the vertical bridge. If the constructor considers that the cable already fixed in the vertical bridge is not fixed firmly enough, the fixing of the lower end of the cable section to be straightened can be carried out by using the straightening mechanism of embodiment 2.

Step five: and repeating the third step and the fourth step until the vertical cable laying is finished.

Compared with the embodiment 1, the guide pulley block 2 is provided with the upper clamping piece 23 and the lower clamping piece 24, the cable is clamped and fixed through the upper clamping piece 23 and the lower clamping piece 24, the cable can be straightened by matching with the winch 1, the use of the cable is effectively reduced, and the cost is saved.

In conclusion, the winch disclosed by the invention can lay and fix cables while laying the cables upside down by using the winch 1 and the guide pulley block 2, and can effectively reduce the dead weight of the cables in the laying process, thereby solving the problem of overweight dead weight of the cables. The laying method can lay the cables in place at one time, can realize that the cables are laid on a line from a feeder cabinet of a distribution substation to the tail end in time, do not need to be broken according to the length calculated by a drawing, and can concentrate redundant cables on each loop together to the greatest extent, thereby saving the construction period and the cables.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A vertical cable laying device for a high-rise building comprises a winch (1) and is characterized by further comprising a guide pulley block (2), wherein the guide pulley block (2) comprises an upper arc-shaped plate (3) and a lower arc-shaped plate (4), the upper arc-shaped plate (3) and the lower arc-shaped plate (4) are connected through a connecting frame (5), a lifting lug (6) is arranged at the upper end of the upper arc-shaped plate (3), and the lifting lug (6) is connected with a steel wire rope lock (7) of the winch (1); be provided with upper pulley group and lower pulley group on link (5), upper pulley group and lower pulley group all are located between arc (3) and lower arc (4), upper pulley group includes four at least upper pulleys (8), each upper pulley (8) of upper pulley group sets gradually along the circular arc direction of last arc (3), the lower pulley group includes four at least lower pulleys (9), each lower pulley (9) of lower pulley group sets gradually along the circular arc direction of lower arc (4).

2. A high-rise building vertical cabling arrangement according to claim 1, wherein the axles of the lower pulleys (9) of the lower pulley set are located on an imaginary arc (10), the radius of curvature of the imaginary arc (10) being not less than 1.4 meters.

3. The vertical cable laying device for the high-rise building according to claim 1, wherein an upper elastic pulley block is arranged on the upper arc-shaped plate (3), the upper elastic pulley block comprises a plurality of upper elastic pulleys, an upper elastic pulley is arranged between two adjacent upper pulleys (8), the upper elastic pulley comprises an upper guide rod (17), an upper pressing pulley (18) and an upper pressing spring (19), a guide hole for the upper guide rod (17) to pass through is formed in the upper arc-shaped plate (3), the upper end of the upper guide rod (17) is positioned on the upper side of the upper arc-shaped plate (3), and a limiting block which cannot pass through the guide hole in the upper arc-shaped plate (3) is in threaded connection with the upper end of the upper guide rod (17); the lower end of the upper guide rod (17) is positioned at the lower side of the upper arc-shaped plate (3), the upper pressing pulley (18) is arranged at the lower end of the upper guide rod (17), and the upper pressing spring (19) is sleeved on the upper guide rod (17) and positioned between the upper arc-shaped plate (3) and the upper pressing pulley (18); the lower arc-shaped plate (4) is provided with a lower elastic pulley block, the lower elastic pulley block comprises a plurality of lower elastic pulleys, a lower elastic pulley is arranged between two adjacent lower pulleys (9), the lower elastic pulley comprises a lower guide rod (20), a lower pressing pulley (21) and a lower pressing spring (22), a guide hole for the lower guide rod (20) to penetrate through is formed in the lower arc-shaped plate (4), the lower end of the lower guide rod (20) is located on the lower side of the lower arc-shaped plate (4), and the lower end of the lower guide rod (20) is in threaded connection with a limiting block which cannot penetrate through the guide hole of the lower arc-shaped plate (4); the upper end of the lower guide rod (20) is positioned at the upper side of the lower arc-shaped plate (4), the lower pressing pulley (21) is arranged at the upper end of the lower guide rod (20), and the lower pressing spring (22) is sleeved on the lower guide rod (20) and positioned between the lower arc-shaped plate (4) and the lower pressing pulley (21); the outer diameters of the upper pulley (8) and the lower pulley (9) are the same, and the outer diameters of the upper pressing pulley (18) and the lower pressing pulley (21) are the same and are both smaller than the outer diameters of the upper pulley (8) and the lower pulley (9).

4. The vertical cable laying device for the high-rise building according to any one of claims 1 to 3, characterized by further comprising a straightening mechanism, wherein the straightening mechanism comprises a fixing structure (11) and a clamping structure (15), the fixing structure (11) can be fixed on the wall of the high-voltage well, a screw (12) is vertically arranged on the fixing structure (11), an adjusting nut (13) is mounted on the screw (12), a guide circular tube (14) is sleeved on the screw (12), the guide circular tube (14) is connected with the clamping structure (15), and the clamping structure (15) is used for clamping a cable.

5. The high-rise building vertical cable laying device according to claim 4, wherein the clamping structure (15) comprises two semicircular pipes hinged with each other, a clamping rubber layer is arranged on the inner wall of each semicircular pipe, and the non-hinged sides of the two semicircular pipes are connected through bolts and nuts; the outer wall of one of the two semicircular pipes of the clamping structure (15) is connected with the guide circular pipe (14) through a connecting rod.

6. The vertical cabling installation for high-rise buildings according to claim 5, characterized in that the inner diameter of the guiding tube (14) is equal to the outer diameter of the adjusting nut (13), and that the upper and lower ends of the inner wall of the guiding tube (14) are provided with a rounded structure (16).

7. The vertical cable laying device for the high-rise building according to claim 1, wherein an upper clamping piece (23) is arranged on the upper arc-shaped plate (3), the upper clamping piece (23) comprises an upper clamping screw, an upper rotating buckle and an upper clamping arc-shaped plate, a threaded through hole for the upper clamping screw to be installed is formed in the upper arc-shaped plate (3), and the upper clamping arc-shaped plate is positioned on the lower side of the upper arc-shaped plate (3) and is connected with the upper clamping screw through the upper rotating buckle; a lower clamping piece (24) is arranged on the lower arc-shaped plate (4), the lower clamping piece (24) comprises a lower clamping screw, a lower rotating buckle and a lower clamping arc-shaped plate, a threaded through hole for mounting the lower clamping screw is formed in the lower arc-shaped plate (4), and the lower clamping arc-shaped plate is positioned on the upper side of the lower arc-shaped plate (4) and is connected with the upper clamping screw through the upper rotating buckle; the upper clamping pieces (23) and the lower clamping pieces (24) are arranged in a one-to-one correspondence mode, the upper clamping pieces (23) and the lower clamping pieces (24) are correspondingly arranged, and the upper clamping screw and the lower clamping screw share the central axis.

8. A method of high-rise vertical cabling using the high-rise vertical cabling apparatus of claim 1, comprising the steps of:

the method comprises the following steps: preparing a winch (1), a guide pulley block (2) and a cable reel, fixing the winch (1) at the upper end of a well of a high-voltage well, connecting the guide pulley block (2) with a steel wire rope lock (7) of the winch (1), conveying the cable reel to a cable horizontal and vertical turning position, and erecting and fixing the cable reel firmly by using a cable support frame;

step two: the cable head is pulled out and penetrates through an upper pulley block and a lower pulley block of a guide pulley block (2), then the horizontal section of the cable is laid along a horizontal bridge, the cable head is laid into a feeder cabinet of a power transformation and distribution room, a cable with a certain length is reserved in the power transformation and distribution room according to actual needs, and the part of the reserved cable, which is positioned at the horizontal and vertical turning positions of the cable, is fixed firmly;

step three: a cable with a certain length is pulled out from the cable reel, the winch (1) is started, the winch (1) drives the guide pulley block (2) to ascend, the guide pulley block (2) drives the cable to ascend, and the guide pulley block (2) drives the ascending cable to be laid in the vertical bridge;

step four: after the part of the cable pulled out from the cable reel in the third step, which can be laid in the vertical bridge, is completely laid in the vertical bridge, the winch (1) is stopped, and the cable laid in the vertical bridge is fixed in the vertical bridge;

step five: and repeating the third step and the fourth step until the vertical cable laying is finished.

9. A method of high-rise vertical cabling using the high-rise vertical cabling apparatus of claim 4, comprising the steps of:

the method comprises the following steps: preparing a winch (1), a guide pulley block (2) and a cable reel, fixing the winch (1) at the upper end of a well of a high-voltage well, connecting the guide pulley block (2) with a steel wire rope lock (7) of the winch (1), conveying the cable reel to a cable horizontal and vertical turning position, and erecting and fixing the cable reel firmly by using a cable support frame;

step two: the cable head is pulled out and penetrates through an upper pulley block and a lower pulley block of a guide pulley block (2), then the horizontal section of the cable is laid along a horizontal bridge, the cable head is laid into a feeder cabinet of a power transformation and distribution room, a cable with a certain length is reserved in the power transformation and distribution room according to actual needs, and the part of the reserved cable, which is positioned at the horizontal and vertical turning positions of the cable, is fixed firmly;

step three: a cable with a certain length is pulled out from the cable reel, the winch (1) is started, the winch (1) drives the guide pulley block (2) to ascend, the guide pulley block (2) drives the cable to ascend, and the guide pulley block (2) drives the ascending cable to be laid in the vertical bridge;

step four: after the part of the cable pulled out from the cable reel in the third step and capable of being laid in the vertical bridge is completely laid in the vertical bridge, the winch (1) is stopped, the part of the cable laid in the vertical bridge is straightened by the straightening mechanism, when the cable is straightened, the fixing structure (11) is fixed on the wall of the high-voltage well, then the cable is clamped by the clamping structure (15), the adjusting nut (13) is screwed, and the adjusting nut (13) drives the guide circular tube (14) and the clamping structure (15) to move upwards to straighten the cable; after the cable is straightened, fixing the cable laid in the vertical bridge;

step five: and repeating the third step and the fourth step until the vertical cable laying is finished.

10. A method of high-rise vertical cabling using the high-rise vertical cabling apparatus of claim 7, comprising the steps of:

the method comprises the following steps: preparing a winch (1), a guide pulley block (2) and a cable reel, fixing the winch (1) at the upper end of a well of a high-voltage well, connecting the guide pulley block (2) with a steel wire rope lock (7) of the winch (1), conveying the cable reel to a cable horizontal and vertical turning position, and erecting and fixing the cable reel firmly by using a cable support frame;

step two: the cable head is pulled out and penetrates through an upper pulley block and a lower pulley block of a guide pulley block (2), then the horizontal section of the cable is laid along a horizontal bridge, the cable head is laid into a feeder cabinet of a power transformation and distribution room, a cable with a certain length is reserved in the power transformation and distribution room according to actual needs, and the part of the reserved cable, which is positioned at the horizontal and vertical turning positions of the cable, is fixed firmly;

step three: a certain length of cable is pulled out from a cable reel, a winch (1) is started, the winch (1) drives a guide pulley block (2) to ascend, the guide pulley block (2) drives the cable to ascend, and the guide pulley block (2) drives the ascending cable to be laid in a vertical bridge;

step four: after the cable pulled out from the cable reel in the third step can be laid in the vertical bridge completely, stopping the winch (1), fixing the cable through the upper clamping piece (23) and the lower clamping piece (24), starting the winch (1) to drive the guide pulley block (2) to move slowly upwards, straightening the cable continuously at the moment, stopping the winch (1) again after the cable is straightened, and fixing the cable laid in the vertical bridge;

step five: and repeating the third step and the fourth step until the vertical cable laying is finished.

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