CN210468617U - Cross beam support of cable well - Google Patents

Abstract

The utility model discloses a cable shaft beam support, including crossbeam and cable laying wheel, the top at the both ends of crossbeam is equipped with the outstanding supporting shoe of length direction along the crossbeam, cable laying wheel includes two horizontal interval settings and the same backup pad, two backup pads all include backup pad and bottom suspension fagging, it is connected with the bottom suspension fagging is articulated to go up the backup pad, it is equipped with the loose axle to go up backup pad upper portion, wear to establish at epaxial lug of loose axle and the cover protective sheath on the loose axle, the lug is connected with the crossbeam, the lower part of two bottom suspension faggings is equipped with the fixed axle that a plurality of width direction intervals along the crossbeam set up, it has the gyro wheel that is used for supporting and guide cable all. The utility model discloses the beneficial effect who gains: the cable can be supported at the entrance of the cable well, the cable is prevented from being damaged, time and labor are saved, the construction progress is accelerated, the production cost is reduced, and the applicability is high.

Description

Cross beam support of cable well

Technical Field

The utility model relates to a cable supports auxiliary device's technical field, concretely relates to cable shaft beam support.

Background

At present, power cables are widely used in urban power grids, a cable well is dug to bury the cables in the existing cable laying method, but in the traditional technology, a plurality of workers are required to pull the cables, the workers pull the cables and tighten the cables at the beginning, a great amount of physical force of the workers is consumed in the pulling process, when the cables are pulled to a certain length, the cables cannot be tightened by the pulling force of the workers, the cables fall downwards due to dead weight and touch the corners of the cable well, the cables are damaged in the pulling process, the workers are required to support the cables at the inlet of the cable well and are matched with the workers in the cable well, the cables are placed a little distance at the inlet, the cables cannot touch the corners of the cable well due to dead weight, then the workers in the cable well tighten the cables, and the cables are pulled one by one step, not only consume a large amount of manpowers and physical power, cable laying is inefficient moreover, has influenced the progress of construction.

Therefore, there is a need for a cable support aid to be provided at the entrance of a cable well.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims to provide a cable shaft beam support, it includes crossbeam and cable laying wheel, this cable shaft beam support has can be at cable shaft entry supporting cable, the suitability is strong, labour saving and time saving, accelerate construction progress, reduction in production cost's advantage.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

a cable well beam support comprises a beam and a cable laying wheel, wherein the beam is provided with supporting blocks protruding along the length direction of the beam above two ends, the supporting blocks can be put on a cable well to support the beam and the cable laying wheel, the cable laying wheel comprises two identical supporting plates, the two supporting plates are arranged in parallel at intervals, the two supporting plates are of two-section split type structures and comprise an upper supporting plate and a lower supporting plate, the upper supporting plate is hinged with the lower supporting plate, the upper parts of the two upper supporting plates are provided with movable shafts, a lifting lug is arranged between the two upper supporting plates and connected with the beam, two ends of the lower part of the lifting lug penetrate through the movable shafts, and two ends of the lower part of the lifting lug are respectively attached to the inner side surfaces of the two upper supporting plates, a protective sleeve is arranged between the two ends of the lower part of the lifting lug and can be rotatably sleeved on the movable shaft; the lower parts of the two lower supporting plates are provided with a plurality of fixing shafts, the fixing shafts are arranged at intervals in the width direction of the cross beam, and the fixing shafts are sleeved with rollers for supporting and guiding cables.

Preferably, the cross beam is of a split structure, the cross beam comprises a left cross beam and a right cross beam, the left cross beam is of a hollow structure, the right cross beam is embedded into the left cross beam, a positioning hole is formed in the front wall of the left cross beam, an internal thread is formed in the positioning hole, a plurality of through holes are formed in the front wall of the right cross beam along the length direction of the cross beam, the circle centers of the plurality of through holes and the circle center of the positioning hole are located on the same horizontal plane, a positioning rod penetrating from the positioning hole into the through hole is arranged in the positioning hole, the positioning rod is provided with an external thread matched with the internal thread, through the arrangement, after the positioning rod is disassembled, the right cross beam can stretch relative to the left cross beam to enable different through holes to align to the positioning hole, namely, the circle centers of different through holes and the circle centers of the positioning holes, after the beam is adjusted to be proper in length, the positioning rod is inserted finally to fix, so that the cable well beam support can be suitable for cable wells with different widths, and is high in applicability.

Preferably, a slide rail is arranged below the left cross beam and the right cross beam along the length direction of the cross beam, a slider is arranged below the slide rail, the slider comprises a hook arranged at the bottom end of the slider, the lifting lug is provided with a round hole along the width direction of the cross beam, the round hole is arranged on the hook in a penetrating manner, through the arrangement, when a worker drags a cable in a cable well, the cable can be inevitably swung along the length direction of the cross beam, because the slider is arranged below the slide rail, the slider can move along the length direction of the cross beam relative to the cross beam, and the round hole of the lifting lug is arranged on the hook below the slider in a penetrating manner, so that the cable laying wheel can move along the length direction of the cross beam relative to the cross beam, and when the cable swings along the length direction of the cross beam, the cable laying wheel can also swing along with the cable, the pull device is convenient for workers to pull cables, and the cables do not need to be pulled straightly along the width direction of the cross beam.

Preferably, both ends below of slide rail all is equipped with the stopper, through setting up like this, works as the cable laying wheel is relative the crossbeam is followed during the length direction swing of crossbeam, because the both ends below of slide rail all is equipped with the stopper, works as the cable laying wheel is followed horizontal length direction removes to during the both ends of slide rail, the terminal surface of slider can be contradicted the terminal surface of stopper, this moment the stopper can restrict the slider removes to the restriction the removal of cable laying wheel avoids the cable laying wheel collides the inside wall of cable shaft.

Preferably, the both ends of loose axle are equipped with the external screw thread, and all stretch out in go up the backup pad, at least one end of loose axle is equipped with butterfly nut will the loose axle with go up the backup pad and can dismantle the connection, through setting up like this, can directly twist and move butterfly nut is convenient for will the loose axle is followed it dismantles in the backup pad to go up, make it can be relative to go up the backup pad the bottom suspension fagging is outwards overturn round the axis of articulated department to be convenient for place the cable on the gyro wheel of cable laying wheel.

Preferably, a chamfer or fillet structure is arranged between the end faces at the two ends of the beam and the bottom face of the beam, and through the arrangement, because the distance between the end faces at the two ends of the beam can be adjusted to be equal to the width of the cable well, and a chamfer or fillet structure is arranged between the end faces at the two ends of the beam and the bottom face of the beam, the cable well beam support is placed into the cable well, the chamfer or fillet structure plays a transition role, and the cable well beam support is conveniently placed into the cable well.

Preferably, the roller comprises end portions at two ends and straight cylinder portions positioned in the two ends, the outer diameters of the two end portions are equal and larger than the outer diameter of the straight cylinder portion, an arc transition is arranged between the two end portions and the straight cylinder portion, the difference between the radius of the end portions and the radius of the straight cylinder portion is at least one third of the diameter of the largest cable to be laid, through the arrangement, when a worker drags the cable to move along the width direction of the cross beam, the cable can also swing along the length direction of the cross beam, the outer diameter of the end portions is larger than the outer diameter of the straight cylinder portions, the difference between the radius of the end portions and the radius of the straight cylinder portions is at least one third of the diameter of the largest cable to be laid, and the cable can be guaranteed not to touch the inner side face of the supporting plate when swinging along the length direction of the cross beam, the cable is prevented from sliding friction with the inner side face of the support plate, so that the cable is prevented from being damaged.

As preferred, the both ends of gyro wheel all are equipped with the ladder groove, and the ladder groove includes the right angle groove of outer circular arc groove and inlayer, the right angle inslot is equipped with the bearing, the outer lane of bearing with right angle groove interference fit, the inner circle of bearing with fixed axle interference fit, through setting up like this, the staff drags the cable edge the width direction of crossbeam removes, can drive the gyro wheel is followed the central line of fixed axle is rotatory, the gyro wheel with be equipped with the bearing between the fixed axle, guarantee that the gyro wheel can smoothly rotate, thereby guarantee the cable can smoothly be dragged, labour saving and time saving for the construction progress reduces manufacturing cost.

Preferably, be located the circular arc inslot be equipped with the sleeve on the fixed axle, just telescopic both ends are contradicted respectively the medial surface of bottom suspension fagging reaches the terminal surface of bearing makes the terminal surface at gyro wheel both ends all with there is the clearance between the medial surface of bottom suspension fagging, through setting up like this, avoid the terminal surface at gyro wheel both ends with produce sliding friction between the medial surface of bottom suspension fagging, further guarantee the gyro wheel can smoothly rotate, is convenient for drag the cable.

Preferably, the internal diameter of protective sheath is greater than the external diameter of loose axle, just there is the clearance between the terminal surface at protective sheath both ends and the medial surface at the both ends of lug lower part, through setting up like this, works as when the diameter of cable is great, the cable can conflict the gyro wheel reaches the protective sheath, the protective sheath avoids when the cable receives wearing and tearing, also does not influence the pulling the cable.

Compared with the prior art, the utility model discloses profitable technological effect has been obtained:

1. will the crossbeam is placed at the cable shaft entry, makes the lower surface of supporting shoe contradicts at the upper surface of cable shaft, will the loose axle is followed go up the backup pad and dismantle, will again go up the backup pad and outwards overturn round the axis of articulated department, place the cable on the gyro wheel, reverse turning over a book go up the backup pad, adorn the loose axle, the loose axle passes go up the backup pad the lug reaches the protective sheath, staff stimulates in the cable shaft the cable is followed the width direction of crossbeam removes, cable shaft beam support can support at the cable shaft entry the cable does not need many staff right the cable supports labour saving and time saving for the construction progress, reduction in production cost.

2. Because the crossbeam is split type structure, the crossbeam includes left crossbeam and right crossbeam, right crossbeam can be relative left crossbeam stretches out and draws back to the adjustment the whole length of crossbeam can be applicable to the cable shaft of different width, and the suitability is strong.

Drawings

Fig. 1 is a schematic view of embodiment 1 of the present invention;

fig. 2 is a schematic front view of a cable laying wheel according to embodiment 1 of the present invention;

fig. 3 is a schematic side view of a cable laying wheel according to embodiment 1 of the present invention.

Wherein, the technical characteristics that each reference numeral refers to are as follows:

1. a cross beam; 1.1, a left cross beam; 1.2, a right cross beam; 1.3, supporting blocks; 1.4, through holes; 1.5, positioning holes; 2. a cable laying wheel; 2.1, lifting lugs; 2.1.1, round holes; 2.2, a protective sleeve; 2.3, a movable shaft; 2.4, butterfly nuts; 2.5, a flat washer; 2.6, rollers; 2.6.1, end; 2.6.2, a straight barrel part; 2.7, a support plate; 2.7.1, an upper supporting plate; 2.7.2, a lower supporting plate; 2.8, fixing the shaft; 2.9, a bearing; 2.10, a sleeve; 2.11, a cable; 2.12, fixing the nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following specific embodiments.

Embodiment 1, referring to fig. 1-3, this embodiment discloses a cable well beam support, which includes a beam 1 and a cable laying wheel 2, the beam 1 is provided with support blocks 1.3 above two ends, the lower surfaces of the support blocks 1.3 abut against the upper surfaces of two sides of the cable well, and can support the beam 1 and the cable laying wheel 2, the cable laying wheel 2 includes two identical support plates 2.7, the support plates 2.7 are triangular, and the support plates 2.7 are provided with large round corners at three corners, the two support plates 2.7 are arranged in parallel at intervals, the inner side interval between the two support plates 2.7 is larger than the outer diameter of the largest cable 2.11 to be laid, the two support plates 2.7 are both split structures, the two support plates 2.7 include an upper support plate 2.7.1 and a lower support plate 2.7.2, the upper support plate 2.7.1 is hinged with the lower support plate 2.7.2, the upper portion of the two support plates 2.7.1 is provided with a movable shaft 2.3, be equipped with lug 2.1 in two backup pads 2.7.1, lug 2.1 sets up the below at crossbeam 1, wear to establish on loose axle 2.3 at lug 2.1's lower part both ends, and the lower part both ends of lug 2.1 laminate respectively on two backup pads 2.7.1's medial surface, be equipped with protective sheath 2.2 between lug 2.1's the lower part both ends, two fixed axles 2.8 set up along crossbeam 1's width direction interval, it has gyro wheel 2.6 that is used for supporting and guide cable 2.11 all to overlap on two fixed axles 2.8.

Place crossbeam 1 in cable shaft entrance for supporting shoe 1.3's lower surface contradicts at the upper surface of cable shaft, plays supporting role to crossbeam 1 and cable laying wheel, and with loose axle 2.3 from last backup pad 2.7.1 dismantle, will go up backup pad 2.7.1 again and outwards overturn round the axis of articulated department, place cable 2.11 on gyro wheel 2.6, reverse upset go up backup pad 2.7.1, install loose axle 2.3, loose axle 2.3 passes backup pad 2.7.1, lug 2.1 and protective sheath 2.2, and the staff pulls cable 2.11 in the cable shaft and removes along the width direction of crossbeam 1, and cable shaft crossbeam support can support cable 2.11 at cable shaft entrance, does not need many staff to support cable 2.11 at cable shaft entrance, and labour saving and time saving accelerates the construction progress, reduces manufacturing cost.

The cross beam 1 is of a split structure, the cross beam 1 comprises a left cross beam 1.1 and a right cross beam 1.2, the left cross beam 1.1 is of a hollow structure, the right cross beam 1.2 is embedded into the left cross beam 1.1, the front wall of the left cross beam 1.1 at the opening is provided with a positioning hole 1.5, an internal thread structure is arranged in the positioning hole 1.5, the front wall of the right cross beam 1.2 is provided with four through holes 1.4 along the length direction of the cross beam 1, the circle centers of the four through holes 1.4 are all positioned on the same horizontal plane with the circle center of the positioning hole 1.5, the positioning hole 1.5 is provided with a positioning rod penetrating from the positioning hole 1.5 to the through hole 1.4, the positioning rod is provided with external threads matched with the internal threads, the positioning rod is in threaded connection with the positioning hole 1.5, so that the positioning rod can penetrate through the positioning hole 1.5 and the through hole 1.4 and is fixedly connected with the left cross beam 1.1, finally, the left cross beam 1.1.2 and the left cross beam 1.2 are relatively fixed, after the positioning rod, the circle centers of the different through holes 1.4 and the positioning holes 1.5 are located on the same horizontal line, the beam 1 is adjusted to be proper in length, and then the positioning rods are inserted for fixing, so that the cable well beam support can be suitable for cable wells with different widths, and the applicability is high.

The two ends of the movable shaft 2.3 are provided with external threads, the external threads extend out of the upper supporting plate 2.7.1, the external threads at the two ends of the movable shaft 2.3 extend from the inner side surface of the upper supporting plate 2.7.1 to the end surface of the movable shaft 2.3, at least one end of the movable shaft 2.3 is provided with a butterfly nut 2.4 to detachably connect the movable shaft 2.3 with the upper supporting plate 2.7.1, in the embodiment, one end of the movable shaft 2.3 is provided with a flat gasket 2.5 and a fixing nut 2.12, the other end of the movable shaft 2.3 is provided with a flat gasket 2.5 and a butterfly nut 2.4, the butterfly nut 2.4 can be directly screwed, the movable shaft 2.3 can be conveniently detached from the upper supporting plate 2.7.1, so that the upper supporting plate 2.7.1 can be outwards overturned around the axis of the hinged part relative to the lower supporting plate 2.7.2, and the cable can be conveniently placed on.

Be equipped with fillet or chamfer structure between the terminal surface at crossbeam 1 both ends and the bottom surface of crossbeam 1, in this embodiment, be equipped with the chamfer structure between the terminal surface at crossbeam 1 both ends and the bottom surface of crossbeam 1, because the adjustable width that equals the cable shaft of distance between the terminal surface at crossbeam 1's both ends, when putting into the cable shaft with cable shaft beam support, this chamfer plays the effect of transition, is convenient for put into the cable shaft with cable shaft beam support.

The roller 2.6 comprises end parts 2.6.1 at two ends and straight cylinder parts 2.6.2 positioned in the two ends, the outer diameters of the two end parts 2.6.1 are equal and larger than the outer diameter of the straight cylinder parts 2.6.2, circular arc transition is arranged between the two end parts 2.6.1 and the straight cylinder parts 2.6.2, the difference between the radius of the end part 2.6.1 and the radius of the straight cylinder parts 2.6.2 is at least one third of the outer diameter of the maximum cable to be laid, when a worker drags the cable 2.11 to move along the width direction of the cross beam 1, the cable 2.11 can swing along the length direction of the cross beam 1, in the embodiment, the difference between the radius of the two end parts 2.6.1 and the radius of the straight cylinder parts 2.6.2 is one third of the diameter of the maximum cable to be laid, the cable 2.11 can be guaranteed not to touch the inner side surface of the supporting plate 2.7 when the cable 2.11 swings along the length direction of the cross beam 1, and sliding friction between the inner side surface of the supporting plate 2.

Gyro wheel 2.6's both ends all are equipped with the ladder groove, the ladder groove includes outer circular arc groove and inboard right angle groove, the right angle inslot is equipped with bearing 2.9, bearing 2.9's outer lane and right angle groove interference fit, bearing 2.9's inner circle and fixed axle 2.8 interference fit, the staff drags cable 2.11 and removes along the width direction of crossbeam 1, can drive gyro wheel 2.6 and rotate along the central line of fixed axle 2.8, be equipped with bearing 2.9 between gyro wheel 2.6 and the fixed axle 2.8, can guarantee that gyro wheel 2.6 can smoothly rotate, thereby guarantee that cable 2.11 can smoothly be dragged, time saving and labor saving, accelerate the construction progress, and low in production cost.

Be located to be equipped with sleeve 2.10 on the fixed axle 2.8 of circular arc inslot, sleeve 2.10's internal diameter equals fixed axle 2.8's external diameter, and sleeve 2.10's both ends are contradicted respectively at the medial surface of bottom suspension fagging 2.7.2 and the terminal surface of bearing 2.9, there is the clearance between the terminal surface at gyro wheel 2.6 both ends and the medial surface of bottom suspension fagging 2.7.2, avoid producing sliding friction between the terminal surface at gyro wheel 2.6 both ends and the medial surface of bottom suspension fagging 2.7.2, further guarantee that gyro wheel 2.6 can smoothly rotate, be convenient for drag cable 2.11.

The internal diameter of protective sheath 2.2 is greater than the external diameter of loose axle 2.3, and has the clearance between the medial surface at the terminal surface at protective sheath 2.2 both ends and the both ends of 2.1 lower parts of lug, and when cable 2.11's diameter was great, cable 2.11 can conflict gyro wheel 2.6 and protective sheath 2.2, and when protective sheath 2.2 avoided cable 2.11 to receive wearing and tearing, also did not influence pulling cable 2.11.

The utility model discloses use of embodiment:

detaching the positioning rod, extending and retracting the right cross beam 1.2 relative to the left cross beam 1.1 along the length direction of the cross beam 1, so that different through holes 1.4 of the right cross beam 1.2 are aligned with the positioning holes 1.5 of the left cross beam 1.1, namely, the circle centers of different through holes 1.4 and the positioning holes 1,5 are positioned on the same horizontal line, adjusting the distance between the end surfaces of the two ends of the cross beam 1 to be closest to and not more than the width of a cable well, penetrating the positioning rod through the positioning holes 1.5 and the through holes 1.4 after the adjustment is finished, and fixedly connecting the positioning rod and the left cross beam 1.1 by screw threads, namely, fixing the left cross beam 1.1 and the right cross beam 1.2 relatively, placing the cross beam 1 at the inlet of the cable well, making the lower surface of the supporting block 1.3 abut against the upper surface of the cable well, supporting the cross beam 1 and a cable laying wheel, unscrewing the butterfly nut 2.4, detaching the movable shaft 2.3 from the upper supporting plate 2.7.1 and turning the hinged position outwards around the axial line, placing a cable 2.11 on a straight cylinder part of a roller 2.6, reversely turning over an upper supporting plate 2.7.1, installing a movable shaft 2.3, enabling the movable shaft 2.3 to penetrate through the upper supporting plate 2.7.1, a lifting lug 2.1 and a protective sleeve 2.2, then screwing down a butterfly nut 2.4 to fixedly connect the movable shaft 2.3 with the upper supporting plate 2.7.1, and arranging the lifting lug 2.1 below a cross beam 1 so that a cable laying wheel 2 is arranged below the cross beam 1; after the installation finishes, the staff pulls cable 2.11 in the cable shaft and removes along 1 width direction of crossbeam, and cable shaft beam support can avoid cable 2.11 and cable shaft entry's corner to bump and impaired at cable shaft entrance department, does not need many staff to support cable 2.11 in cable shaft entrance department, labour saving and time saving for the construction progress, reduction in production cost.

Example 2

This embodiment describes only the differences from embodiment 1, and the remaining technical features are the same as embodiment 1. In this embodiment, a slide rail is arranged below the left beam 1.1 and the right beam 1.2 along the length direction of the beam 1, the slide rail is provided with a plurality of stepped holes which are arranged at intervals along the length direction of the beam 1 and penetrate through the stepped holes, the lower walls of the left beam 1.1 and the right beam 1.2 are respectively provided with a threaded hole which corresponds to the stepped holes one by one, the slide rail is in threaded connection with the left beam 1.1 and the right beam 1.2, a slider is arranged below a connecting hole slide rail of the slide rail, the slider comprises a hook arranged at the bottom end of the slider, a circular hole 2.1.1 is arranged in the width direction of the beam 1 in the lifting lug 2.1, the circular hole 2.1.1 is arranged on the hook in a penetrating manner, when a worker drags the cable 2.11 in a cable well, the cable 2.11 can inevitably swing along the length direction of the beam 1, because the slider is arranged below the slide rail, the slider can move along the length direction of the beam 1 relative to the beam 1, and the circular hole 2.11 of the lifting lug, when the cable 2.11 swings along the length direction of the beam 1, the cable laying wheel can also swing along with the cable 2.11, so that a worker can pull the cable 2.11 conveniently without pulling the cable 2.11 straightly along the width direction of the beam 1.

The both ends below of slide rail all is equipped with the stopper, when cable laying takes turns relative crossbeam 1 along the length direction swing of crossbeam 1, because the both ends below of slide rail all is equipped with the stopper, when cable laying takes turns to and removes to the both ends of slide rail along horizontal length direction, the terminal surface of slider can contradict at the terminal surface of stopper, and the stopper can restrict the slider and remove this moment to restriction cable laying takes turns the removal, avoids cable laying to take turns the inside wall of collision cable shaft.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the specification, the terms are used for convenience of description and do not limit the utility model in any way.

Claims (10)

1. The cable well beam support is characterized by comprising a beam and a cable laying wheel, wherein the beam is provided with supporting blocks protruding along the length direction of the beam above two ends, the supporting blocks can be lapped on a cable well to support the beam and the cable laying wheel, the cable laying wheel comprises two identical supporting plates, the two supporting plates are arranged in parallel at intervals, the two supporting plates are of two-section split type structures, each supporting plate comprises an upper supporting plate and a lower supporting plate, the upper supporting plates are hinged with the lower supporting plates, movable shafts are arranged on the upper portions of the two upper supporting plates, lifting lugs are arranged between the two upper supporting plates and connected with the beam, two ends of the lower portion of each lifting lug penetrate through the movable shafts, and two ends of the lower portion of each lifting lug are respectively attached to the inner side surfaces of the two upper supporting plates, a protective sleeve is arranged between the two ends of the lower part of the lifting lug and can be rotatably sleeved on the movable shaft; the lower parts of the two lower supporting plates are provided with a plurality of fixing shafts, the fixing shafts are arranged at intervals in the width direction of the cross beam, and the fixing shafts are sleeved with rollers for supporting and guiding cables.

2. The cable well beam support according to claim 1, wherein the beam is of a split structure, the beam comprises a left beam and a right beam, the left beam is of a hollow structure, the right beam is embedded into the left beam, a positioning hole is formed in the front wall of the left beam, an internal thread is formed in the positioning hole, a plurality of through holes are formed in the front wall of the right beam along the length direction of the beam, the circle centers of the plurality of through holes and the circle center of the positioning hole are located on the same horizontal plane, a positioning rod penetrates into the through hole from the positioning hole, and the positioning rod is provided with an external thread matched with the internal thread.

3. The cable well beam support according to claim 2, wherein a slide rail is arranged below the left beam and the right beam along the length direction of the beams, a slide block is arranged below the slide rail, the slide block comprises a hook arranged at the bottom end of the slide block, the lifting lug is provided with a round hole along the width direction of the beams, and the round hole is arranged on the hook in a penetrating manner.

4. The cable well beam support according to claim 3, wherein a limiting block is arranged below each of two ends of the sliding rail.

5. The cable well beam support according to claim 1, wherein two ends of the movable shaft are provided with external threads and both extend out of the upper support plate, and at least one end of the movable shaft is provided with a butterfly nut to detachably connect the movable shaft with the upper support plate.

6. The cable well beam support according to claim 2, wherein a chamfer or fillet structure is provided between the end faces of the two ends of the beam and the bottom face of the beam.

7. A cable well beam support according to claim 1, wherein the roller comprises two end portions and a straight cylindrical portion located in the two end portions, the outer diameters of the two end portions are equal and larger than the outer diameter of the straight cylindrical portion, an arc transition is provided between the two end portions and the straight cylindrical portion, and the difference between the radius of the end portions and the radius of the straight cylindrical portion is at least one third of the diameter of the largest cable to be laid.

8. The cable well beam support according to claim 7, wherein stepped grooves are formed at two ends of each roller, each stepped groove comprises an outer circular arc groove and an inner right-angle groove, a bearing is arranged in each right-angle groove, an outer ring of each bearing is in interference fit with the corresponding right-angle groove, and an inner ring of each bearing is in interference fit with the corresponding fixed shaft.

9. The cable well beam support according to claim 8, wherein a sleeve is disposed on the fixed shaft located in the arc groove, and two ends of the sleeve respectively abut against the inner side surface of the lower support plate and the end surface of the bearing, so that a gap is formed between the end surfaces of the two ends of the roller and the inner side surface of the lower support plate.

10. The cable well beam support according to claim 9, wherein an inner diameter of the protective sheath is larger than an outer diameter of the movable shaft, and a gap is formed between end surfaces of both ends of the protective sheath and inner side surfaces of both ends of the lower portion of the lifting lug.

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