Auxiliary device for cable entering and exiting pipeline opening

Abstract

The utility model relates to an auxiliary device for a cable to go in and out of a pipeline port, which comprises a fixed support, a pulley support is arranged on the fixed support, a pulley is arranged on the pulley support, and a penetrating port for a cable to penetrate through is arranged between the pulley and the fixed support. According to the utility model, the direction of the cable can be adjusted before the cable enters an underground pipeline, and the traction direction of the cable is the same as that of a pipeline opening, so that the cable straightly penetrates into the pipeline opening; therefore, damage to a pipeline opening and an insulator on the surface layer of the cable due to the fact that the cable and the pipeline opening form an angle in the laying process of the cable is completely eradicated, meanwhile, when the cable enters the pipeline opening, the advancing direction of the cable is the same as the direction of the pipeline, more labor is saved in cable traction, and the working efficiency of cable traction is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable construction auxiliary devices, in particular to an auxiliary device for cable inlet and outlet pipelines. Background Art

[0002] With the rapid economic development, cities are also facing land shortage, heavy traffic pressure, urban appearance construction and other reasons. More and more cables are moved underground in cities. Large cities generally adopt underground cable transmission. Unlike overhead lines, cables are often laid in underground pipelines such as cable trenches, tunnels, pipelines, etc.

[0003] Traditional underground pipeline cables are added, replaced, and recycled using a capstan and manual cable pulling method. This method requires construction workers to first move the capstan and cable loop to the side of the cable wellhead, and then load and pull the cable into and out of the underground pipeline. When entering and exiting the pipeline, the cable loop and capstan are located on the ground, that is, higher than the underground pipeline. Therefore, when the cable enters and exits the pipeline, it is easy to cause a bending angle between the cable and the pipeline, accompanied by continuous friction, which can easily cause damage to the pipeline opening and the cable surface insulation. Even if the angle of the cable entering and exiting the pipeline is manually fixed so that the cable is centered at the pipeline opening to avoid bending and friction, it will suddenly increase the labor force, and there are safety hazards, consuming a lot of manpower and material resources. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary device for a cable inlet and outlet of a pipeline, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary device for cable entry and exit of a pipe, the auxiliary device comprising a fixed bracket, a pulley bracket provided on the fixed bracket, a pulley provided on the pulley bracket, and an opening for the cable to pass through provided between the pulley and the fixed bracket.

[0006] Preferably, the fixing bracket comprises a supporting cross bar, and fixing seats are respectively provided at both ends of the supporting cross bar, wherein a plurality of fixing holes are provided on the edges of the fixing seats.

[0007] Preferably, the fixed bracket comprises a supporting cross bar and supporting vertical bars arranged at intervals, and the pulley bracket is movably arranged on the supporting cross bar.

[0008] Preferably, the pulley bracket includes two hoops, a connecting plate and two mounting plates for pulley installation, each hoops includes two half-ring pairs, the connecting plate is connected to the two hoops, the mounting plates are respectively arranged on both sides of the connecting plate, and the mounting plates are provided with axial holes.

[0009] Preferably, the pulley bracket also includes a pulley bracket lifting assembly arranged between the connecting plate and the mounting plate, each pulley bracket lifting assembly includes a frame, a spring, a lifting bolt and a pulley seat, the frame is arranged on the connecting plate, the pulley seat includes a bottom plate and the mounting plate connected to the middle part of the bottom plate, the spring is arranged in the frame, the two ends of the spring are respectively connected to the bottom plate and the connecting plate of the pulley seat, and screw holes matching the lifting bolts are respectively provided on the bottom plate and the connecting plate of the pulley seat located on both sides of the spring.

[0010] Preferably, the support vertical rod is a telescopic support vertical rod, and the support vertical rod includes a first telescopic tube and a second telescopic tube, the second telescopic tube is sleeved in the first telescopic tube, and corresponding positions of the first telescopic tube and the second telescopic tube are respectively provided with telescopic holes, and the first telescopic tube and the second telescopic tube are fixed by fixing bolts that cooperate with the telescopic holes.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model can adjust the direction of the cable before it enters the underground pipeline, and make the cable pulling direction and the pipeline opening in the same direction, so that the cable can be directly inserted into the pipeline opening, thereby preventing the pipeline opening and the cable surface insulator from being damaged due to the angle between the cable and the pipeline opening during the cable laying process. At the same time, because the cable advances in the same direction as the pipeline when entering the pipeline opening, pulling the cable is more labor-saving, thereby improving the working efficiency of pulling the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of the first embodiment provided by the utility model;

[0014] Figure 2 A schematic diagram of the structure of the second embodiment provided by the utility model;

[0015] Figure 3 A schematic diagram of the structure of the third embodiment provided by the utility model;

[0016] Figure 4 A schematic diagram of the structure of the pulley seat provided by the utility model;

[0017] Figure 5 This is the installation diagram of the utility model;

[0018] Figure 6 A schematic diagram of the use status provided by the utility model;

[0019] In the figure: auxiliary device 01, pulley bracket 2, pulley 3, through-hole 4, support cross bar 11, fixing seat 111, fixing hole 1111, support vertical bar 12, clamp 13, mounting plate 15, shaft hole 151, frame 141, connecting plate 142, lifting bolt 143, pulley seat 144, bottom plate 1441, mounting plate 15, first telescopic tube 121, second telescopic tube 122, telescopic hole 123, fixing bolt 124. DETAILED DESCRIPTION

[0020] The technical solution in one embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-6 :

[0022] Embodiment 1:

[0023] See also Figure 1 In this embodiment, the fixed bracket includes a support cross bar 11, and the two ends of the support cross bar are respectively provided with a fixed seat 111, wherein the edge of the fixed seat is provided with a plurality of fixing holes 1111, and in addition, the pulley bracket 2 can be set as a pulley bracket movable on the support cross bar 11, and its movable structure can be combined with a screw hole and a bolt, such as setting a plurality of screw holes on the support cross bar 11 and the pulley bracket, and fixing them by bolts, and when the pulley is in use, the support cross bar 11 is fixed to the side wall of the cable wellhead 5 by bolts. The structure is simple in design, low in cost, and easy to use.

[0024] Embodiment 2:

[0025] See also Figure 2 In this embodiment, the fixing bracket is different from the fixing bracket of the first embodiment in that:

[0026] The fixed bracket includes a support cross bar 11 and support vertical bars 12 arranged at intervals, and the pulley bracket is movably arranged on the support cross bar 11. The pulley bracket includes two clamps 13, a connecting plate 142 and two mounting plates 15 for pulley installation, each clamp includes two half ring pairs, the connecting plate 142 is connected to the two clamps 13, the mounting plates 15 are respectively arranged on both sides of the connecting plate 142, and the mounting plates 15 are provided with shaft holes 151. The fixed bracket provided in this scheme is supported on the ground of the cable wellhead by the support vertical bars, and at the same time, the pulley bracket includes a clamp, which is convenient to move on the support cross bar, so it is particularly convenient to use for cable construction (including addition, replacement, and recycling) of multiple pipeline openings.

[0027] Embodiment three:

[0028] See also Figure 3This embodiment is based on the second embodiment, and the pulley bracket also includes a pulley bracket lifting component arranged between the connecting plate and the mounting plate, and the pulley lifting component is arranged on the pulley bracket.

[0029] Each pulley bracket lifting assembly includes a frame 141, a spring (not shown), a lifting bolt 143 and a pulley seat, the frame 141 is arranged on the connecting plate 142, the pulley seat includes a bottom plate 1441 and the mounting plate 15 connected to the middle of the bottom plate 1441, the spring is arranged in the frame 141, and the two ends of the spring are respectively connected to the bottom plate 1441 and the connecting plate 142 of the pulley seat, and screw holes matching the lifting bolts 143 are respectively provided on the bottom plate 1441 and the connecting plate 142 of the pulley seat located on both sides of the spring, such as the screw hole 1442 on the bottom plate 1441 of the pulley seat.

[0030] The support vertical rod is a telescopic support vertical rod. The support vertical rod 12 includes a first telescopic tube 121 and a second telescopic tube 122. The second telescopic tube 122 is sleeved in the first telescopic tube 121. Corresponding positions of the first telescopic tube 121 and the second telescopic tube 122 are respectively provided with telescopic holes 123. The first telescopic tube 121 and the second telescopic tube 122 are fixed by fixing bolts 124 that cooperate with the telescopic holes.

[0031] In this embodiment, the support vertical rod and the pulley bracket are both set to have a lifting function, wherein the support vertical rod is for coarse adjustment and the pulley bracket is for fine adjustment. Through the combination of coarse adjustment and fine adjustment, the pulley can be easily adjusted to any height, which is very convenient to use.

[0032] Working principle:

[0033] See also Figure 5-6 , place the cable loop 6 on the ground of the cable wellhead 5, then place the auxiliary device 01 on the ground at the bottom of the cable wellhead 5, and place it in front of the pipe opening 51, adjust the height of the supporting vertical rod 12, so that the through-opening 4 is roughly flush with the horizontal plane of the pipe opening 51 where the cable is to be constructed, then, loosen the clamp 13 and move the pulley bracket to align the pipe opening 51 with the through-opening 4, then, pass the end of the cable in the cable loop 6 through the through-opening 4, and then into the pipe opening 5, further adjust the height of the through-opening 4 on the pulley bracket by the lifting bolt 143, so that the cable can be straightly inserted into the pipe opening, and then insert the cable from the pipe opening 5.

[0034] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cable inlet and outlet pipe auxiliary device, characterized in that: The auxiliary device includes a fixed bracket, a pulley bracket is provided on the fixed bracket, a pulley is provided on the pulley bracket, a through hole is provided between the pulley and the fixed bracket for the cable to pass through, the fixed bracket includes a supporting cross bar and supporting vertical bars arranged at intervals, the pulley bracket is movably arranged on the supporting cross bar, the pulley bracket includes two hoops, a connecting plate and two mounting plates for pulley installation, each hoops includes two semi-ring pairs, the connecting plate is connected to the two hoops, the mounting plates are respectively arranged on both sides of the connecting plate, and the mounting plates are provided with axial holes.

2. A cable inlet and outlet auxiliary device according to claim 1, characterized in that: The pulley bracket also includes a pulley bracket lifting assembly arranged between the connecting plate and the mounting plate, each pulley bracket lifting assembly includes a frame, a spring, a lifting bolt and a pulley seat, the frame is arranged on the connecting plate, the pulley seat includes a bottom plate and the mounting plate connected to the middle of the bottom plate, the spring is arranged in the frame, the two ends of the spring are respectively connected to the bottom plate and the connecting plate of the pulley seat, and the bottom plate and the connecting plate of the pulley seat located on both sides of the spring are respectively provided with screw holes that cooperate with the lifting bolts.

3. The cable inlet and outlet auxiliary device according to claim 1, characterized in that: The support vertical rod is a telescopic support vertical rod, and the support vertical rod includes a first telescopic tube and a second telescopic tube. The second telescopic tube is sleeved in the first telescopic tube. Corresponding positions of the first telescopic tube and the second telescopic tube are respectively provided with telescopic holes. The first telescopic tube and the second telescopic tube are fixed by fixing bolts that cooperate with the telescopic holes.

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