A bridge cable laying device

Abstract

The present invention discloses a bridge cable laying device, which relates to the technical field of electric power construction equipment, and comprises a trolley moving along the bridge, the trolley is provided with a hanging ring for connecting a traction rope, and the trolley is provided with a clamping piece for connecting a cable; a storage bin is provided at the bottom of the trolley, and a plurality of cable pulleys are carried in the storage bin through a retracting assembly; each of the cable pulleys is provided with a first bidirectional electric push rod, and when the retracting assembly releases the cable pulley onto the bridge, the first bidirectional electric push rod is extended to abut against both sides of the bridge to lock the cable pulley. In the above technical scheme, the present invention provides a bridge cable laying device, which pulls the traction rope from one end of the bridge to the other end by hooking the traction rope on the hanging ring on the trolley; the retracting assembly on the trolley can release the cable pulley onto the bridge, and can also recycle the cable pulley on the bridge into the storage bin of the trolley; the construction risk is reduced and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power construction equipment, in particular to a bridge cable laying device. Background Art

[0002] In power distribution projects, due to the shortage of land in residential areas, distribution rooms are usually set up underground. However, it is relatively difficult to lay cables on bridges in basements, and it is difficult for construction machinery to enter and play a role. The heights of bridges in underground distribution rooms of different buildings vary. When laying cables manually, for higher bridges, operators need to use equipment such as ladders and scaffolding, or operate in an upward-looking posture, which is not conducive to the smooth laying of cables and easily leads to wear between cables and bridges. In addition, the existing cable laying devices are poorly portable, and the transfer and disassembly process is cumbersome, which brings unnecessary trouble to the construction and reduces the work efficiency of cable laying.

[0003] The patent with the announcement number CN209267015U discloses a cable laying device for a cable tray in a basement distribution station, including a pay-off frame and a traction frame. The pay-off frame and the traction frame are both retractable structures. The top inner side of the pay-off frame is rotatably connected to a height-adjustable cable roller. A height-adjustable movable pulley is suspended on one side of the top of the traction frame. A steel wire rope is arranged on the movable pulley. The steel wire rope pulls the cable around the cable roller and enters the cable tray. The utility model is suitable for laying cables in basement distribution stations, which can effectively avoid the construction inconvenience and cable wear problems existing in manual laying of cables, and improve construction efficiency and quality: it can adapt to the needs of laying cables in basements of different heights and the needs of laying cables in cable trays of different heights, and is flexible to use and has good versatility: it adopts an assembled structure, which is easy to carry, and is convenient for temporary and rapid assembly and erection and disassembly and transfer at the construction site. It has a simple structure, low manufacturing cost, and strong practicality.

[0004] Technologies such as those in the above-mentioned patents can effectively avoid the construction inconvenience and cable wear problems caused by manual cable laying, and improve construction efficiency and quality. However, the disadvantage is that when constructing on a long-distance bridge, before using the cable laying device to lay the cable, the wire rope needs to be manually pulled from the traction frame to the wire pay-off frame and connected to the free end of the cable, and pulling the traction rope from one end of the bridge to the other end requires manual climbing to the bridge multiple times; before the cable is pulled, multiple cable pulleys need to be manually pre-set, and when installing the cable pulleys, it is necessary to manually climb to the designated position of the bridge, place the cable pulley on the bridge and fix it, and then repeat the process multiple times. After the cable laying is completed, it is necessary to climb to the bridge to retrieve the cable pulley; multiple climbs to high altitude operations reduce the safety of construction, and construction efficiency needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to provide a bridge cable laying device to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cable laying device for a bridge, comprising a trolley moving along the bridge, the trolley being provided with a hanging ring for connecting a traction rope, and the trolley being provided with a clamping member for connecting the cable; a storage bin is provided at the bottom of the trolley, and a plurality of cable pulleys are carried in the storage bin through a retractable assembly; each of the cable pulleys is respectively provided with a first bidirectional electric push rod, and when the retractable assembly releases the cable pulley onto the bridge, the first bidirectional electric push rod is extended to abut against both sides of the bridge to lock the cable pulley.

[0007] Furthermore, the clamping member includes a first clamping block, a second clamping block and a locking bolt, the first clamping block is fixedly connected to the trolley, the second clamping block is slidably connected to the trolley, one end of the locking bolt is rotatably connected to the first clamping block, and the other end of the locking bolt is threadedly connected to the second clamping block.

[0008] Further, preferably, a plurality of clamping members are arranged in parallel on the trolley.

[0009] Furthermore, the folding and unfolding assembly includes a first shell, which is fixedly arranged in the storage bin, and the bottom of the first shell is slidably connected to two parallel hanging rods, the bottoms of the two hanging rods are hook-shaped, and racks are fixedly connected to the two hanging rods respectively. A first motor is provided on the first shell, and an extension shaft is coaxially fixedly connected to the rotating shaft of the first motor. Two gears are fixedly arranged on the extension shaft, and the two gears are meshed with the two racks in a one-to-one correspondence.

[0010] Furthermore, the cable pulley includes a first pulley and a base, the pulley is rotatably connected to the base, the first bidirectional electric push rod is fixedly installed on the base, and anti-slip pads are provided on both telescopic ends of the first bidirectional electric push rod.

[0011] Furthermore, it also includes a guide component, which is arranged on the trolley. The guide component includes a second bidirectional electric push rod, and roller groups are arranged on both telescopic ends of the second bidirectional electric push rod.

[0012] Furthermore, the top of the trolley is rotatably connected to two parallel second pulleys.

[0013] Furthermore, a third pulley is rotatably connected in the storage bin.

[0014] In the above technical scheme, the present invention provides a bridge cable laying device, which hooks the traction rope on the hanging ring on the trolley to pull the traction rope from one end of the bridge to the other end, without the need for manual climbing to the bridge multiple times to pull the traction rope; the cable is clamped and fixed by the clamping member on the trolley, and the trolley is driven to move by pulling the traction rope to thereby realize laying the cable clamped on the trolley on the bridge; a plurality of cable pulleys are carried in the storage bin on the trolley, and the retracting and releasing assembly on the trolley can release the cable pulleys in the storage bin onto the bridge, and can also recover the cable pulleys on the bridge into the storage bin of the trolley; when the retracting and releasing assembly releases the cable pulley onto the bridge, the first bidirectional electric push rod on the cable pulley can fix the cable pulley on the bridge; the whole process does not require manual climbing to the bridge to pull the traction rope, nor does it require manual climbing to the bridge to fix and recover the cable pulley, which reduces the frequency of high-altitude operations, reduces construction risks, and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the side structure provided by an embodiment of the present invention Figure Ⅰ ;

[0017] Figure 2 A schematic diagram of the side structure provided by an embodiment of the present invention Figure II ;

[0018] Figure 3 A schematic diagram of the structure inside the storage bin provided by an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of the structure of the guide assembly provided in an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of a partial cross-sectional structure provided in an embodiment of the present invention Figure Ⅰ ;

[0021] Figure 6 A schematic diagram of a partial cross-sectional structure provided in an embodiment of the present invention Figure II ;

[0022] Figure 7 A schematic diagram of the structure inside the first shell of the retractable assembly provided in an embodiment of the present invention;

[0023] Figure 8 for Figure 7A schematic diagram of the enlarged structure at A in the middle;

[0024] Fig. 9 A schematic diagram of the structure of the first bidirectional electric push rod on the cable pulley provided in an embodiment of the present invention;

[0025] Fig.10 A schematic diagram of the installation structure of multiple clamping members provided in an embodiment of the present invention;

[0026] Fig.11 A schematic diagram of the installation structure of two second pulleys provided in an embodiment of the present invention;

[0027] Fig.12 A schematic diagram of the installation structure of the third pulley provided in an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1. Trolley; 11. Storage bin; 12. Hanging ring; 2. Guide assembly; 21. Second bidirectional electric push rod; 22. Roller assembly; 3. Clamp; 31. First clamp block; 32. Second clamp block; 33. Locking bolt; 4. Retractable assembly; 41. First housing; 42. Hanging rod; 43. Rack; 44. Gear; 45. Extension shaft; 46. First motor; 5. Cable pulley; 51. First pulley; 52. Base; 6. First bidirectional electric push rod; 61. Anti-slip pad; 7. Second pulley; 8. Third pulley. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1-12, a bridge cable laying device provided by an embodiment of the present invention includes a trolley 1 that moves along the bridge. The trolley 1 has power. Specifically, a motor is provided in the trolley 1 to drive the wheels of the trolley 1 to rotate. The trolley 1 is provided with a hanging ring 12 for connecting a traction rope. The traction rope can specifically be a nylon rope or a steel wire rope. By hooking the traction rope on the hanging ring 12 on the trolley 1, the trolley 1 moves along the bridge through its own power to pull the free end of the traction rope from one end of the bridge (traction point) to the other end (cable release point) without manually climbing up to the bridge multiple times to pull the traction rope; the trolley 1 is provided with a clamping member 3 for connecting the cable; the cable is clamped and fixed by the clamping member 3 on the trolley 1, and the traction rope is pulled to drive the trolley 1 to move, thereby realizing the laying of the cable clamped on the trolley 1 on the bridge. A storage bin 11 is provided at the bottom of the trolley 1, and a plurality of cable trolleys 5 are carried in the storage bin 11 through a retractable assembly 4. The retractable assembly 4 can release the cable trolley 5 carried in the trolley 1 onto the bridge, and can also retract the cable trolley 5 on the bridge into the storage bin 11 of the trolley 1; each cable trolley 5 is respectively provided with a first bidirectional electric push rod 6. When the retractable assembly 4 releases the cable trolley 5 onto the bridge, the first bidirectional electric push rod 6 is extended to abut against both sides of the bridge to lock the cable trolley 5.

[0032] See also Figure 4 In the embodiment of the present invention, the clamping member 3 includes a first clamping block 31, a second clamping block 32 and a locking bolt 33. The first clamping block 31 is fixedly connected to the trolley 1, and the second clamping block 32 is slidably connected to the trolley 1. The trolley 1 is provided with a first slide groove, and the second clamping block 32 is slidably connected in the first slide groove. One end of the locking bolt 33 is rotatably connected to the first clamping block 31, and the other end of the locking bolt 33 is threadedly connected to the second clamping block 32. When the free end of the cable needs to be fixed to the trolley 1, the free end of the cable is placed between the first clamping block 31 and the second clamping block 32, and the locking bolt 33 is rotated to make the second clamping block 32 slide to a suitable position to cooperate with the first clamping block 31 to clamp the free end of the cable.

[0033] See also Fig.10 As a preference, a plurality of clamping members 3 are arranged in parallel on the trolley 1, for example, 2-6, and the specific number is configured according to the number of cables to be laid. Compared with a single clamping member 3, multiple clamping members 3 enable the trolley 1 to clamp and carry multiple cables in one moving stroke, which is suitable for the use scenario where multiple cables need to be laid on the bridge.

[0034] See also Figure 6-8The storage assembly 4 includes a first housing 41, which is fixedly disposed in the storage bin 11. Two parallel hanging rods 42 are slidably connected to the bottom of the first housing 41. The bottoms of the two hanging rods 42 are both hook-shaped. The cable pulley 5 is hooked through the hook-shaped bottoms of the two hanging rods 42 to realize the function of the trolley 1 carrying the cable pulley 5. Racks 43 are fixedly connected to the two hanging rods 42, respectively. A first motor 46 is provided on the first housing 41. An extension shaft 45 is coaxially fixedly connected to the rotating shaft of the first motor 46. Two gears 44 are fixedly disposed on the extension shaft 45. The two gears 44 mesh with the two racks 43 in a one-to-one correspondence. The rotation of the rotating shaft of the first motor 46 drives the extension shaft 45 to rotate together, and also rotates the two gears 44 on the extension shaft 45. The two gears 44 engage with the corresponding racks 43 to drive the two hanging rods 42 to slide relative to the first shell 41 in the vertical direction. When the trolley 1 moves along the bridge, the cable pulley 5 on the hanging rod 42 can be released onto the bridge or the cable pulley 5 on the bridge can be carried back to the storage bin 11.

[0035] See also Fig. 9 The cable pulley 5 includes a first pulley 51 and a base 52, the pulley is rotatably connected to the base 52, the first bidirectional electric push rod 6 is fixedly installed on the base 52, the first bidirectional electric push rod 6 includes a second housing, a second motor and a rotating rod, the two sides of the second housing are fixedly connected with a telescopic rod, the rotating rod is arranged in the second housing, the two ends of the rotating rod are provided with thread segments with different rotation directions, each thread segment is provided with a sliding rod between the telescopic rod, the sliding rod is slidably connected to the second housing, one end of the sliding rod is threadedly connected to the thread segment, and the other end of the sliding rod is fixedly connected to the telescopic rod of the telescopic rod, when the retracting assembly 4 releases the cable pulley 5 onto the bridge, the two telescopic ends of the first bidirectional electric push rod 6 are extended and abut against the two sides of the bridge to lock the cable pulley 5. Preferably, both telescopic ends of the first bidirectional electric push rod 6 are provided with anti-skid pads 61, and the two anti-skid pads 61 can further improve the locking effect of the first bidirectional electric push rod 6 on the cable pulley 5.

[0036] See also Figure 4 , and also includes a guide assembly 2, which is arranged on the trolley 1. The guide assembly 2 includes a second bidirectional electric push rod 21, and roller groups 22 are arranged on the two telescopic ends of the second bidirectional electric push rod 21. When the trolley 1 moves on the bridge, the two telescopic ends of the second bidirectional electric push rod 21 begin to extend, and the pulley groups on the two telescopic ends abut against the corresponding side bridge. Under the joint action of the guide assembly 2 and the bridges on both sides, the moving direction of the trolley 1 is controlled, so that the trolley 1 can work not only on a linear bridge, but also on some arc-shaped bridges, which broadens the use scenarios of the trolley 1.

[0037] After the cable laying work is completed, the trolley 1 can recycle the cable trolleys 5 fixed on the bridge into the storage bin 11 through the retracting assembly 4. The specific operation process is to loosen the cable fixed in the clamp 3, so that the trolley 1 moves along the bridge toward the cable reeling position. When approaching the cable trolley 5, the first bidirectional electric telescopic push rod on the cable trolley 5 is retracted into the second shell, and the hanging rod 42 in the retracting assembly 4 on the trolley 1 is lowered from the first shell 41. When the retracting assembly 4 is located directly above the cable trolley 5, the hanging rod 42 is lifted, and the hook-shaped bottom of the hanging rod 42 hooks up the cable trolley 5. Repeat this process until all the cable trolleys 5 are recycled into the storage bin 11. In the process of the trolley 1 recycling the cable trolley 5, in order to avoid interference with the already laid cables, two recycling methods are adopted. The first recycling method is that the cable is bypassed from the top of the trolley 1, and the second recycling method is that the cable is bypassed from the bottom of the trolley 1.

[0038] However, both recycling methods will cause different degrees of wear on the cable surface. In order to reduce the wear caused by the friction between the top or bottom of the trolley 1 and the cable when the trolley 1 recycles the cable pulley 5, two solutions are proposed. Fig.11 For the first recovery method, the top of the trolley 1 is rotatably connected to two parallel second pulleys 7. When the cable pulley 5 is recovered, the cable and the two second pulleys 7 pass through the top of the trolley 1 to reduce the wear on the cable surface caused by direct contact between the cable and the top of the trolley 1. Fig.12 For the second recycling method, a third pulley 8 is rotatably connected in the storage bin 11. When the cable trolley 5 is recycled, the cable passes through the first pulley 51 on the cable trolley 5 and then passes through the third pulley 8 from the bottom of the trolley 1 to reduce the wear on the cable skin caused by direct contact between the cable and the bottom of the trolley 1.

[0039] Working principle: By hooking the traction rope on the hanging ring 12 on the trolley 1, the traction rope is transported from the traction point to the cable release point, and the cable is clamped and fixed by the clamping member 3 on the trolley 1. By pulling the traction rope to drive the trolley 1 to move, the cable clamped on the trolley 1 is laid on the bridge. While the trolley 1 is towed, each retractable assembly 4 on the trolley 1 can release the multiple cable pulleys 5 carried on it on the bridge in sequence. When the retractable assembly 4 releases the cable pulley 5 to the bridge, the cable pulley 5 is released to the bridge. When the cable trolley 5 is mounted on the bridge, the first bidirectional electric push rod 6 can fix the cable trolley 5 on the bridge; after the laying work is completed, the trolley 1 can retract each cable trolley 5, and when the trolley 1 is close to the cable trolley 5, the first bidirectional electric telescopic push rod on the cable trolley 5 is retracted into the second shell, and the hanging rod 42 in the retractable assembly 4 on the trolley 1 is lowered from the first shell 41. When the retractable assembly 4 is located directly above the cable trolley 5, the hanging rod 42 is lifted, and the hook-shaped bottom of the hanging rod 42 hooks the cable trolley 5.

[0040] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bridge cable laying device, comprising a trolley (1) moving along the bridge, characterized in that: The trolley (1) is provided with a hanging ring (12) for connecting a traction rope, and the trolley (1) is provided with a clamping member (3) for connecting a cable; A storage compartment (11) is provided at the bottom of the trolley (1), and a plurality of cable pulleys (5) are carried in the storage compartment (11) via a retractable assembly (4); Each of the cable pulleys (5) is provided with a first bidirectional electric push rod (6). When the retracting assembly (4) releases the cable pulley (5) onto the bridge, the first bidirectional electric push rod (6) extends to abut against two sides of the bridge to lock the cable pulley (5).

2. A bridge cable laying device according to claim 1, characterized in that: The clamping member (3) comprises a first clamping block (31), a second clamping block (32) and a locking bolt (33); the first clamping block (31) is fixedly connected to the trolley (1); the second clamping block (32) is slidably connected to the trolley (1); one end of the locking bolt (33) is rotatably connected to the first clamping block (31); and the other end of the locking bolt (33) is threadedly connected to the second clamping block (32).

3. A bridge cable laying device according to claim 1, characterized in that: A plurality of clamping members (3) are arranged in parallel on the trolley (1).

4. A bridge cable laying device according to claim 1, characterized in that: The retractable assembly (4) comprises a first shell (41), the first shell (41) being fixedly arranged in the storage bin (11), the bottom of the first shell (41) being slidably connected to two parallel hanging rods (42), the bottoms of the two hanging rods (42) being hook-shaped, the two hanging rods (42) being respectively fixedly connected to racks (43), the first shell (41) being provided with a first motor (46), the rotating shaft of the first motor (46) being coaxially fixedly connected to an extension shaft (45), the extension shaft (45) being fixedly provided with two gears (44), the two gears (44) being meshed with the two racks (43) in a one-to-one correspondence.

5. A bridge cable laying device according to claim 1, characterized in that: The cable pulley (5) comprises a first pulley (51) and a base (52), wherein the first pulley (51) is rotatably connected to the base (52), the first bidirectional electric push rod (6) is fixedly mounted on the base (52), and anti-slip pads (61) are provided on both telescopic ends of the first bidirectional electric push rod (6).

6. A bridge cable laying device according to claim 1, characterized in that: It also comprises a guide assembly (2), the guide assembly (2) being arranged on the trolley (1), the guide assembly (2) comprising a second bidirectional electric push rod (21), and roller assemblies (22) being arranged on both telescopic ends of the second bidirectional electric push rod (21).

7. A bridge cable laying device according to claim 1, characterized in that: The top of the trolley (1) is rotatably connected to two parallel second pulleys (7).

8. The cable bridge laying device according to claim 1, characterized in that: A third pulley (8) is rotatably connected in the storage bin (11).

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