Outdoor weak current manhole cable rapid laying method

Abstract

The present application relates to the field of cable laying, and discloses a kind of outdoor weak electric manhole well cable fast laying method, the section of manhole well is rectangle, two sides of the side wall in manhole well are respectively provided with laying hole based on a device, including suspension support, support is in-depth manhole well bottom, support is provided with guide pulley frame at laying hole, three guide pulleys are provided on guide pulley frame, three guide pulleys are used to drag the bending of 90 ° with corner opposite in manhole well during cable turning process, limit mechanism is installed on support;Method includes the following steps, 1, support is erected on the well mouth of manhole well, limit mechanism is connected with the side wall of manhole well;2, cable is introduced into manhole well from a laying hole, cable is guided through three groups of guide pulleys in manhole well and then is dragged out of manhole well through another laying hole after 90 ° bending, the present application reduces the friction between cable and laying hole by guide pulley dragging cable turning, and limit mechanism is used to keep support stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cable laying, in particular to a kind of outdoor weak electric hand hole cable quick laying method. BACKGROUND

[0002] The original intention of modern architectural design has been developed from the original shelter for people to digital technology new building. The development and rise of intelligent building are obvious, and a large number of underground communication pipe networks are often needed in the design of these intelligent buildings to establish communication connection between building and outdoor system, building and municipal pipe network and building group. In the process of communication cable laying in these outdoor communication pipe wells, the cable laying needs to be natural and straight, without twisting, coiling and other phenomena, and the cable is easily damaged by external pressure during construction. In addition, communication cable, especially communication optical cable, has strict requirements on the bending radius of cable. In order to solve these problems, a new, efficient and practical outdoor weak electric hand hole cable quick laying construction technology is proposed to improve the construction quality of outdoor weak electric hand hole cable, and finally provide reliable and stable communication system for building. The traction cable device in the hand hole of the prior art is mostly linear traction device, so a traction method applied to cable corner traction in hand hole is needed to solve the current technical problem. SUMMARY

[0003] In view of the above problems, the present application provides a hand hole cable laying method which is simple to operate and stable in use, and the specific scheme is as follows:

[0004] A kind of outdoor weak electric hand hole cable quick laying method, the cross section of the hand hole is rectangular, two sides of the corner in the hand hole are provided with laying holes, based on a set of cable quick laying device, including support suspended in the hand hole, the support is deep into the bottom of the hand hole, the support is provided with guide roller frame at the laying hole, three guide rollers are arranged on the guide roller frame, the three guide rollers are located on the same horizontal plane with the laying hole, and the three guide rollers are used to form 90° bending with the corner in the cable turning process to reduce the friction between the cable and the laying hole. Limiting mechanism is installed on the support, and the limiting mechanism is used to prevent the rotating force of the cable in the traction process from causing unstable shaking of the support;

[0005] The method comprises the following steps:

[0006] Step 1, erect the support on the well mouth of the hand hole, and the limiting mechanism is connected with the side wall of the hand hole;

[0007] Step 2, introduce the cable into the hand hole from one laying hole, and the cable is guided by three groups of guide rollers in the hand hole and then bent by 90° to be pulled out of the hand hole through another laying hole.

[0008] Further, the support comprises a crossbeam arranged along the diagonal of the handhole well and opposite to the corner between the two laying holes, a hanger is suspended in the middle of the crossbeam, and the hanger is provided with the guide wheel frame, the limiting mechanism comprises,

[0009] Two first limiting rods are respectively suspended at the bottom of the crossbeam and correspond to the two opposite corners of the handhole well respectively;

[0010] A second limiting rod is connected with the hanger, and the end of the second limiting rod extends horizontally to the corner between the two laying holes.

[0011] Further, the crossbeam, the first limiting rod, the second limiting rod, the hanger and the guide wheel frame are all aluminum alloy profiles.

[0012] Further, the hanger is a cylindrical structure, a through hole matched with the outer diameter of the hanger is arranged in the crossbeam, the hanger is fixedly inserted into the through hole, the second limiting rod is welded with the hanger, and the two first limiting rods are welded with the crossbeam.

[0013] Further, the guide wheel frame comprises a sleeve ring sleeved with the hanger, the position of the guide wheel frame on the hanger can be adjusted through the sleeve ring, the sleeve ring is provided with a fastener, the outside of the sleeve ring is provided with three guide rods integrally connected with the sleeve ring, two of the three guide rods are arranged towards the two laying holes, and the other guide rod is arranged towards the direction opposite to the corner between the two laying holes, and one guide wheel is arranged on each guide rod.

[0014] Further, the guide wheel frame comprises a sleeve ring sleeved with the hanger, the position of the guide wheel frame on the hanger can be adjusted through the sleeve ring, the sleeve ring is provided with a fastener, the outside of the sleeve ring is provided with two guide rods integrally connected with the sleeve ring, the two guide rods are perpendicular to each other and are arranged perpendicularly towards the two laying holes respectively, and one guide wheel is arranged above each of the two guide rods and the sleeve ring, and the guide wheel arranged above the sleeve ring is rotationally connected with the hanger through a bearing.

[0015] Further, the fastener is a knob threadedly connected with the side wall of the sleeve ring, and the sleeve ring is fastened with the hanger by rotating the knob.

[0016] Further, the cross section of the handhole well is square, the crossbeam, the two first limiting rods, the hanger and the second limiting rod are all four-groove square column aluminum materials, the components are fixedly connected through angle codes and bolts in the grooves of the four-groove square column aluminum materials, the crossbeam comprises two side beams respectively connected with the two sides of the hanger, the two first limiting rods are respectively connected with the bottoms of the corresponding side beams, the edges of the first limiting rods are matched with the opposite corners of the handhole well, and the guide wheel frame comprises three guide rods made of four-groove square column aluminum materials, one guide wheel is arranged in the groove of the upper surface of each guide rod, two of the three guide rods are parallel to the crossbeam, and the other guide rod is perpendicular to the crossbeam and is arranged reversely to the first limiting rod.

[0017] Compared with the prior art, the application has the following advantages:

[0018] 1、The laying method based on the laying device avoids the abrasion between the cable and the laying hole when the cable turns, and makes the cable turn 90 degrees more smoothly through the three groups of guide wheels constituting a right angle.

[0019] 2、The two first limiting rods and the second limiting rod of the limiting mechanism constitute a triangular support structure in the hand hole, and each limiting rod is supported at the corner and the two opposite corners adjacent to the corner of the hand hole, so that the support has no movable space and cannot swing around the cross beam after being affected by the rotating force, thereby improving the stability of the laying device.

[0020] 3、The laying device is composed of aluminum alloy profiles, which has the advantages of simple structure, light weight and convenient operation.

[0021] 4、The cylindrical shape of the boom allows the sleeve ring to move up and down on the boom to adjust the height of the guide wheel frame in the hand hole.

[0022] 5、The cylindrical shape of the boom allows the sleeve ring to rotate outside the boom as needed to adjust to different sizes of hand holes.

[0023] 6、The three groups of guide wheels in the application can be adjusted according to the size of the space in the hand hole, and the structure of the three groups of guide wheels around the boom is suitable for the case where the space in the hand hole is larger, one of the guide wheels is sleeved outside the boom, and the other two guide wheels extend out of the boom structure, which is suitable for the case where the space in the hand hole is smaller, and the stability of the guide wheel structure in case one is higher than that in case two. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a top view of the laying device in a rectangular hand hole with a larger space;

[0025] Figure 2 is a top view of the laying device in a rectangular hand hole with a smaller space;

[0026] Figure 3 is a structure diagram of the boom and the sleeve ring;

[0027] Figure 4 is a top view of the laying device in a square hand hole;

[0028] Figure 5 is Figure 4 is a perspective view of the laying device;

[0029] Figure 6 is a sectional view of the four-groove square column aluminum material;

[0030] Reference signs:

[0031] 1, beam; 1-1, side beam; 2, first limiting rod; 3, boom; 4, second limiting rod; 6-1, guide rod; 6-2, guide wheel; 6-3, collar; 6-4, knob; 7, corner code; 8, cable; 9, hand hole; 10, laying hole; 11, corner. DETAILED DESCRIPTION

[0032] The technical solutions of the application will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the application, not all the embodiments.

[0033] Based on the embodiments of the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0034] In the description of the application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to have a particular orientation, are constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the application can be understood according to the specific circumstances.

[0036] Example 1

[0037] As Figure 1As shown in the figure, a cable quick laying device, the cross section of the hand hole 9 is rectangular, the cross section area of the hand hole 9 is relatively spacious, which is convenient for setting the traction support during the laying of the cable, the laying hole 10 is respectively arranged on the two side walls of the hand hole 9 at the two corners 11, the support is suspended in the hand hole 9, the support is deep into the bottom of the hand hole 9, the guide wheel frame is arranged at the laying hole 10 of the support, the guide wheel frame is provided with three guide wheels 6-2, the three guide wheels 6-2 are all located on the same horizontal plane with the laying hole 10, the three guide wheels 6-2 are used to pull the cable 8 in the hand hole 9 to form a 90° bend opposite to the corner 11 during the turning process, so as to reduce the friction between the cable 8 and the laying hole 10, the limiting mechanism is mounted on the support, and the limiting mechanism is used to prevent the rotating force of the cable 8 from causing the support to shake unstably during the traction process.

[0038] The support includes a cross beam 1, the cross beam 1 is arranged along the diagonal line of the hand hole 9, and the cross beam 1 is opposite to the corner 11 between the two laying holes 10, and the middle of the cross beam 1 is suspended with a boom 3, as Figure 3 As shown in the figure, the boom 3 is a cylindrical structure, the cross beam 1 is provided with a through hole matched with the outer diameter of the boom 3, the boom 3 is fixedly inserted into the through hole, the boom 3 is threadedly connected with the through hole, and the boom 3 is provided with a nut above the through hole for fastening the boom 3 and the cross beam 1; the guide wheel frame is arranged on the boom 3, and the limiting mechanism includes,

[0039] Two first limiting rods 2 are respectively suspended at the bottom of the cross beam 1, and the two first limiting rods 2 are both welded and fixed with the cross beam 1, and correspond to the two corners of the hand hole 9 respectively;

[0040] A second limiting rod 4 is connected with the boom 3, the second limiting rod 4 is welded and fixed with the boom 3, and the end of the second limiting rod 4 extends horizontally to the corner 11 between the two laying holes 10.

[0041] The cross beam 1, the first limiting rod 2, the second limiting rod 4, the boom 3 and the guide wheel frame are all aluminum alloy profiles.

[0042] The guide wheel frame includes a sleeve ring 6-3 sleeved with the boom 3, the position of the guide wheel frame on the boom 3 can be adjusted through the sleeve ring 6-3, the sleeve ring 6-3 is provided with a fastener, the fastener is a knob 6-4 threadedly connected with the side wall of the sleeve ring 6-3, the sleeve ring 6-3 is fastened with the boom 3 by rotating the knob 6-4, the sleeve ring 6-3 is provided with three guide rods 6-1 integrally connected with the sleeve ring 6-3, two of the three guide rods 6-1 are arranged towards the two laying holes 10, and the other guide rod 6-1 is arranged towards the direction opposite to the corner 11 between the two laying holes 10, and each guide rod 6-1 is provided with one guide wheel 6-2.

[0043] Embodiment 2

[0044] As Figure 2As shown, a cable quick laying device, the cross section of the hand hole 9 is rectangular, the cross section area of the hand hole 9 is relatively compact, and it is not convenient to set the traction support during the laying process. The laying hole 10 is respectively arranged on the two side walls of the hand hole 9 at the two sides of the corner 11. The support is suspended in the hand hole 9, and the support penetrates into the bottom of the hand hole 9. The support is provided with a guide wheel frame at the laying hole 10. The guide wheel frame is provided with three guide wheels 6-2. The three guide wheels 6-2 are located on the same horizontal plane as the laying hole 10. The three guide wheels 6-2 are used to pull the cable 8 in the hand hole 9 to form a 90° bend opposite the corner 11 to reduce the friction between the cable 8 and the laying hole 10. The support is provided with a limiting mechanism. The limiting mechanism is used to prevent the rotating force of the cable 8 from causing the support to shake unstably during the traction process.

[0045] The support includes a cross beam 1. The cross beam 1 is arranged along the diagonal line of the hand hole 9, and the cross beam 1 is opposite to the corner 11 between the two laying holes 10. The middle of the cross beam 1 is suspended with a hanger 3. Figure 3 As shown, the hanger 3 is a cylindrical structure. The cross beam 1 is provided with a through hole matched with the outer diameter of the hanger 3. The hanger 3 is fixedly inserted into the through hole. The hanger 3 is threadedly connected with the through hole. The hanger 3 is provided with a nut above the through hole to fasten the hanger 3 and the cross beam 1. The hanger 3 is provided with the guide wheel frame. The limiting mechanism includes,

[0046] Two first limiting rods 2 are respectively suspended at the bottom of the cross beam 1. The two first limiting rods 2 are both welded and fixed with the cross beam 1. The two first limiting rods 2 correspond to the two opposite corners of the hand hole 9 respectively.

[0047] A second limiting rod 4 is connected with the hanger 3. The second limiting rod 4 is welded and fixed with the hanger 3. The end of the second limiting rod 4 extends horizontally to the corner 11 between the two laying holes 10.

[0048] The cross beam 1, the first limiting rod 2, the second limiting rod 4, the hanger 3 and the guide wheel frame are all aluminum alloy profiles.

[0049] The guide wheel frame includes a sleeve ring 6-3 sleeved with the hanger 3. The position of the guide wheel frame on the hanger 3 can be adjusted through the sleeve ring 6-3. The sleeve ring 6-3 is provided with a fastener. The fastener is a knob 6-4 threadedly connected with the side wall of the sleeve ring 6-3. The sleeve ring 6-3 is fastened with the hanger 3 by rotating the knob 6-4. The sleeve ring 6-3 is externally provided with two guide rods 6-1 integrally connected therewith. The two guide rods 6-1 are perpendicular to each other. The two guide rods 6-1 are respectively arranged perpendicularly to the two laying holes 10. The two guide rods 6-1 and the sleeve ring 6-3 are respectively provided with a guide wheel 6-2 above. The guide wheel 6-2 above the sleeve ring 6-3 is rotatably connected with the hanger 3 through a bearing.

[0050] Example 3

[0051] As Figure 4 shown, a cable rapid laying device, the cross section of the hand hole 9 is square, the laying hole 10 is respectively arranged on the two side walls of the hand hole 9 at the two sides of a corner 11, including a support suspended in the hand hole 9, the support is deep into the bottom of the hand hole 9, the support is provided with a guide wheel frame at the laying hole 10, the guide wheel frame is provided with three guide wheels 6-2, the three guide wheels 6-2 are all located in the same horizontal plane with the laying hole 10, the three guide wheels 6-2 are used for forming a bending of 90° opposite to the corner 11 in the process of traction of the cable 8 in the hand hole 9, so as to reduce the friction between the cable 8 and the laying hole 10, the support is provided with a limiting mechanism, the limiting mechanism is used for preventing the rotation force of the cable 8 in the process of traction from causing unstable shaking of the support.

[0052] The support includes a cross beam 1, the cross beam 1 is arranged along the diagonal line of the hand hole 9, and the cross beam 1 is opposite to the corner 11 between the two laying holes 10, and the middle of the cross beam 1 is suspended with a hanger 3; the hanger 3 is provided with the guide wheel frame, the limiting mechanism includes,

[0053] Two first limiting rods 2 are respectively suspended at the bottom of the cross beam 1 and correspond to the two opposite corners of the hand hole 9 respectively;

[0054] A second limiting rod 4 is connected with the hanger 3, and the end of the second limiting rod 4 extends horizontally to the corner 11 between the two laying holes 10.

[0055] As Figure 5 , Figure 6 shown, the cross beam 1, the two first limiting rods 2, the hanger 3 and the second limiting rod 4 are all four-groove square column type aluminum materials, the components are fixedly connected through the corner code 7 and the bolt in the groove of the four-groove square column type aluminum material, the cross beam 1 includes two side beams 1-1 connected at the two sides of the hanger 3 respectively, the two first limiting rods 2 are connected at the bottom of the corresponding side beam 1-1 respectively, the corner of the first limiting rod 2 is attached to the opposite corner of the hand hole 9, the guide wheel frame includes three guide rods 6-1 made of four-groove square column type aluminum material, one guide wheel 6-2 is respectively arranged in the groove of the upper surface of each guide rod 6-1, wherein two guide rods 6-1 are parallel to the cross beam 1, and the other guide rod 6-1 is perpendicular to the cross beam 1 and is reversely arranged with the first limiting rod 2.

[0056] Embodiment 4

[0057] A cable laying method of a cable rapid laying device, comprising the following steps:

[0058] Step 1, the support is erected on the wellhead of the handhole well 9, the limiting mechanism is clamped with the sidewall of the handhole well 9, specifically, two first limiting rods and a second limiting rod included in the limiting mechanism constitute a slanting triangle support structure in the handhole well, each limiting rod in the slanting triangle support structure is supported at the corner of the handhole well and two opposite corners adjacent to the corner, so that the support has no movable space after being affected by the rotating force, and also cannot swing with the cross beam as the shaft;

[0059] Step 2, the cable 8 is introduced into the handhole well 9 from a laying hole 10, the cable 8 is guided through three groups of guide wheels 6-2 in the handhole well 9, is bent by 90° and is pulled out of the handhole well 9 through another laying hole 10.

[0060] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, but not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A method for rapid cable laying in outdoor low-voltage manholes, wherein the manhole has a rectangular cross-section, and laying holes are respectively opened on the two side walls at a corner of the manhole, based on a set of rapid cable laying devices, characterized in that... The system includes a support suspended in a manhole, extending to the bottom of the manhole. A guide wheel frame is installed on the support at the laying hole, with three guide wheels on the frame. All three guide wheels are located on the same horizontal plane as the laying hole. The three guide wheels are used to guide the cable in the manhole to form a 90° bend relative to the turning angle during the turning process, so as to reduce the friction between the cable and the laying hole. A limit mechanism is installed on the support to prevent the support from swaying due to the rotational force applied by the cable during the pulling process. The method includes the following steps: Step 1: Set up the support frame on the wellhead of the manhole, and engage the limiting mechanism with the side wall of the manhole. Step 2: Guide the cable from one laying hole into the manhole. After being guided by three sets of guide rollers in the manhole, the cable bends at 90° and is then pulled out of the manhole through another laying hole. The support includes a crossbeam, which is arranged along the diagonal of the manhole, and the crossbeam is opposite to the corner between the two laying holes. A suspension rod is suspended in the middle of the crossbeam, and the guide wheel frame is provided on the suspension rod. The limiting mechanism includes two first limiting rods, which are respectively suspended at the bottom of the crossbeam and respectively correspond to the two diagonals of the manhole. The second limiting rod is connected to the lifting rod, and the end of the second limiting rod extends horizontally to the corner between the two laying holes; The crossbeam, the first limiting rod, the second limiting rod, the hanging rod, and the guide wheel frame are all made of aluminum alloy profiles; The boom is a cylindrical structure, and the crossbeam has a through hole that matches the outer diameter of the boom. The boom is fixedly inserted into the through hole. The second limiting rod is welded and fixed to the boom, and both first limiting rods are welded and fixed to the crossbeam. The guide wheel frame includes a collar that is sleeved with the boom. The position of the guide wheel frame on the boom can be adjusted by the collar. Fasteners are provided on the collar. Three guide rods are integrally connected to the collar. Two of the guide rods are arranged in the direction of the two laying holes, and the other guide rod is arranged in the direction opposite to the angular distance between the two laying holes. Each guide rod is provided with a guide wheel. The guide wheel frame includes a collar that fits onto the boom. The position of the guide wheel frame on the boom can be adjusted via the collar. Fasteners are provided on the collar. Two guide rods are integrally connected to the collar. The two guide rods are perpendicular to each other and are respectively perpendicular to the two laying holes. A guide wheel is provided above the two guide rods and the collar. The guide wheel located above the collar is rotatably connected to the boom via a bearing.

2. The method for rapid cable laying in outdoor low-voltage manholes according to claim 1, characterized in that, The fastener is a knob that is threaded to the side wall of the collar. Rotating the knob secures the collar to the boom.

3. The method for rapid cable laying in outdoor low-voltage manholes according to claim 1, characterized in that, The cross-section of the manhole is square. The crossbeam, the two first limiting rods, the lifting rod, and the second limiting rod are all made of four-slot square column aluminum material. The components are fixedly connected to each other in the slots of the four-slot square column aluminum material by angle brackets and bolts. The crossbeam includes two side beams connected to both sides of the lifting rod. The two first limiting rods are connected to the bottom of the corresponding side beams. The corners of the first limiting rods fit against the diagonals of the manhole. The guide wheel frame includes three guide rods made of four-slot square column aluminum material. A guide wheel is installed in the slot on the upper surface of each guide rod. Two of the guide rods are parallel to the crossbeam, and the other guide rod is perpendicular to the crossbeam and opposite to the first limiting rod.

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