A portable installation device for municipal underground optical cables

Abstract

The present invention belongs to the technical field of underground optical cable installation, and specifically provides a portable installation device for municipal underground optical cables, including a reeling device, a clamping device and a conveying device. The reeling device is connected to the winding drum via a turntable, and the turntable and the winding drum are driven to rotate by a first driving member, which can continuously release the optical cable and complete the cable unwinding operation. The winding drum and the turntable are detachably connected, which is convenient for replacement after the optical cable is consumed. The clamping device includes a clamping rod and a movable clamping block. A clamping space is formed between the clamping rod and the movable clamping block, which can be clamped on a pipeline well. A plurality of conveying devices are respectively arranged on the movable clamping block, the clamping rod and the first clamping part. The conveying device and the clamping device work together to guide the optical cable, prevent the outer sheath of the optical cable from being damaged due to friction with the wellhead during transportation, and ensure the quality of the optical cable construction.

Description

Technical Field

[0001] The present invention belongs to the technical field of underground optical cable installation, and in particular relates to a portable installation device for municipal underground optical cables. Background Art

[0002] Optical fiber cables are a type of communications cable typically laid in urban areas using a conduit-based approach. This involves first laying a conduit underground, then threading the optical cable through the pre-installed conduit. Underground optical cables are less susceptible to physical damage (such as cutting and theft) and chemical corrosion (such as acidic and alkaline gases and water vapor), significantly reducing the risk of data leaks and network outages.

[0003] Currently, there are two main methods for underground optical cable construction: traction-through and air-blowing. Traction-through involves using a cable such as steel wire as a traction rope to drag the optical cable from one end of the pipe to the other, allowing the cable to pass through the underground pipe. Air-blowing involves installing a cable blowing machine at one end of the pipe, using high-pressure, high-speed compressed air to propel the optical cable quickly through the pipe to complete the laying process. The two aforementioned optical cable laying methods have one thing in common: commercially available finished optical cables are wound on reels, which are placed on the ground during construction. When the optical cable enters the underground pipe well, the outer sheath of the cable rubs against the wellhead. Since the wellhead is mostly made of cement or cast iron, the edge of the wellhead can cause damage to the outer sheath of the cable. During subsequent use, the optical cable is prone to failures such as signal attenuation and data loss, which increases inspection and repair costs. Summary of the Invention

[0004] The present invention provides a portable installation device for municipal underground optical cables, aiming to solve the problem in the prior art that the outer sheath of the optical cable is easily worn during the installation of the underground optical cable.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a portable installation device for municipal underground optical cables, comprising:

[0006] The unwinding device includes a base, a turntable, a winding drum, and a first driving member. The base is disposed on the ground. The turntable rotates in conjunction with the base. The winding drum is cylindrical. An optical cable is wound around the outer circumference of the winding drum. The end of the winding drum is detachably connected to the turntable. The first driving member is used to drive the turntable to rotate.

[0007] The clamping device includes a clamping rod and a movable clamping block, wherein the clamping rod is in the shape of a vertical rod, and the lower end of the clamping rod extends horizontally to form a first clamping portion, and the movable clamping block is movably provided on the clamping rod, and the movable clamping block has a second clamping portion extending horizontally, and a clamping space for clamping the pipeline shaft is formed between the first clamping portion and the second clamping portion;

[0008] Multiple conveying devices are respectively provided on the movable clamping block, the vertical section of the clamping rod and the first clamping portion. Multiple conveying devices are connected in series to form a conveying path for the optical cable. Each of the conveying devices has two conveying wheels and a second driving member. The free end of the optical cable is passed between the two conveying wheels. The conveying wheel has a wheel groove for accommodating the optical cable. The second driving member is used to drive the conveying wheel to rotate around its own axis.

[0009] In a possible implementation, circular baffles are provided at both ends of the winding drum, the winding diameter of the optical cable is smaller than the diameter of the baffles, and the base includes:

[0010] The bottom plate is placed flat on the ground, one side of the bottom plate is an inclined surface connected to the ground, and the upper surface of the bottom plate is provided with two grooves spaced apart along the axis of the turntable, and the spacing between the two grooves corresponds to the spacing between the two baffles;

[0011] Two supporting plates are respectively provided in the two grooves. When the supporting plates are accommodated in the corresponding grooves, the upper surfaces of the supporting plates are flush with the upper surface of the base plate. The supporting plates have a supporting state in which they are accommodated in the grooves, and a separated state in which they are separated from the grooves.

[0012] A bracket is provided on the bottom plate, the turntable and the first driving member are respectively provided on the bracket, and the turntable is rotationally matched with the bracket.

[0013] In a possible implementation, a limiting groove is provided on the upper surface of the support plate, the cross section of the limiting groove is arc-shaped, the limiting groove is used to accommodate the baffle, and the base further includes a lifting rod, which is used to drive the support plate to rise and fall.

[0014] In one possible implementation, the turntable is provided with a plurality of first mounting holes along its circumferential direction, the first mounting holes are light holes, the end of the winding drum is provided with a plurality of second mounting holes along its circumferential direction, the second mounting holes are threaded holes, the first mounting holes and the second mounting holes correspond coaxially one by one, and the unwinding device also includes a connecting bolt, which is passed through the first mounting hole and threadedly engaged with the second mounting hole.

[0015] In a possible implementation, the movable clamp further includes:

[0016] The sliding sleeve has a sliding groove extending therethrough in the vertical direction, the sliding groove being in sliding engagement with the clamping rod, an adjustment groove being provided on one side wall of the sliding groove in the vertical direction, the second clamping portion being strip-shaped, one end of the second clamping portion being in sliding engagement with the adjustment groove;

[0017] a spring disposed between a lower portion of the second clamping portion and a bottom of the adjustment slot, the spring being configured with a preload force for causing the second clamping portion to move upward;

[0018] A pressure wheel is arranged above the second clamping portion and is eccentrically connected to the sliding sleeve. The outer peripheral surface of the pressure wheel has an elastic rubber layer. The rotating axis of the pressure wheel is coaxially connected to a force transmission rod. When the pressure wheel rotates around its own rotating axis, the elastic rubber layer can abut against the second clamping portion.

[0019] In a possible implementation, a third mounting hole communicating with the slide groove is formed on a side wall of the movable clamping block, and a tightening screw is threadedly engaged with the third mounting hole, and an end of the tightening screw abuts against the clamping rod.

[0020] In a possible implementation, the portable installation device for municipal underground optical cables further includes an air blowing device, and the air blowing device includes:

[0021] an air blowing die head, disposed on the first clamping portion, the air blowing die head having an air blowing channel for the optical cable to pass through, and an air inlet channel connected to the air blowing channel;

[0022] A compressed air pump is arranged on the ground, and an air outlet end of the compressed air pump is communicated with the air inlet channel.

[0023] In a possible implementation, the interior of the clamping rod is hollow, an air inlet is provided at the upper end of the clamping rod, the air inlet is connected to the air outlet of the compressed air pump, and the lower end of the clamping rod is connected to the air inlet channel.

[0024] In a possible implementation, an airbag is provided on the outer periphery of the air blowing die head, the airbag is connected to the air inlet channel, the airbag is annular, and can expand radially after being inflated.

[0025] In one possible implementation, a weighing device is further provided between the unwinding device and the clamping device. The unwinding speed of the unwinding device is greater than or equal to the feeding speed of the conveying device. During the operation of the unwinding device, the optical cable located above the weighing device can fall onto the top sensing surface of the weighing device.

[0026] Compared with the prior art, the portable installation device for municipal underground optical cables provided by the present invention has the following beneficial effects:

[0027] The present invention provides a portable installation device for municipal underground optical cables, including a reeling device, a clamping device, and a conveying device. The reeling device is connected to a winding drum via a turntable, and the turntable and the winding drum are driven to rotate by a first driving member, thereby continuously releasing the optical cable and completing the cable unwinding operation. The winding drum and the turntable are detachably connected, which is convenient for replacement after the optical cable is consumed. The clamping device includes a clamping rod and a movable clamping block. A clamping space is formed between the clamping rod and the movable clamping block, which can be clamped on a pipeline well. A plurality of conveying devices are respectively arranged on the movable clamping block, the clamping rod, and the first clamping portion. The conveying device and the clamping device work together to guide the optical cable, prevent the outer sheath of the optical cable from being damaged due to friction with the wellhead during transportation, and ensure the quality of the optical cable construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0031] Figure 1 A schematic diagram of a portable installation device for municipal underground optical cables provided in an embodiment of the present application Figure 1 ;

[0032] Figure 2 A schematic diagram of a portable installation device for municipal underground optical cables provided in an embodiment of the present application Figure 2 ;

[0033] Figure 3 A schematic diagram of the structure of a portable installation device for municipal underground optical cables provided in an embodiment of the present application;

[0034] Figure 4 for Figure 3 A partial enlarged view of part A in the middle;

[0035] Figure 5 This is a schematic structural diagram of the air blowing die head in the embodiment of the present application;

[0036] Figure 6This is an internal cross-sectional view of the air blowing die head in the embodiment of the present application;

[0037] Figure 7 This is an exploded view of the unwinding device in the embodiment of the present application;

[0038] Description of reference numerals:

[0039] 10. Unwinding device; 11. Base; 111. Bottom plate; 112. Support plate; 113. Bracket; 12. Turntable; 13. Winding drum; 131. Baffle; 14. First driving member; 15. Connecting bolt; 20. Clamping device; 21. Clamping rod; 211. First clamping part; 22. Movable clamping block; 221. Second clamping part; 222. Sliding sleeve; 223. Pressure wheel; 224. Tightening screw; 225. Force transmission rod; 30. Conveying device; 31. Conveying wheel; 32. Second driving member; 40. Air blowing device; 41. Air blowing die head; 411. Air blowing channel; 412. Air inlet channel; 413. Air bag; 42. Compressed air pump; 50. Weighing device; 60. Pipe shaft; 61. Cable threading pipeline. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0041] Please also refer to Figures 1 to 7 , the following describes a portable installation device for municipal underground optical cables provided by an embodiment of the present invention.

[0042] See also Figures 1 to 3The embodiment of the present invention provides a portable installation device for municipal underground optical cables, including a reeling device 10, a clamping device 20 and a conveying device 30. The reeling device 10 includes a base 11, a turntable 12, a winding drum 13 and a first driving member 14. The base 11 is arranged on the ground, the turntable 12 rotates with the base 11, the winding drum 13 is cylindrical, and an optical cable is wound around the outer circumference of the winding drum 13. The end of the winding drum 13 is detachably connected to the turntable 12, and the first driving member 14 is used to drive the turntable 12 to rotate; the clamping device 20 includes a clamping rod 21 and a movable clamping block 22. The clamping rod 21 is in the shape of a vertical rod, and the lower end of the clamping rod 21 extends horizontally to form a first clamping portion 211. The movable The movable clamping block 22 is movably provided on the clamping rod 21. The movable clamping block 22 has a second clamping portion 221 extending in the horizontal direction. A clamping space for clamping the pipeline well 60 is formed between the first clamping portion 211 and the second clamping portion 221; a plurality of conveying devices 30 are respectively provided on the movable clamping block 22, the vertical section of the clamping rod 21 and the first clamping portion 211. The plurality of conveying devices 30 are connected in series to form a conveying path for the optical cable. Each conveying device 30 has two conveying wheels 31 and a second driving member 32. The free end of the optical cable is passed between the two conveying wheels 31. The conveying wheel 31 has a wheel groove for accommodating the optical cable. The second driving member 32 is used to drive the conveying wheel 31 to rotate around its own axis.

[0043] Compared with the prior art, the portable installation device for municipal underground optical cables provided by the embodiment of the present invention has the following beneficial effects:

[0044] A portable installation device for municipal underground optical cables provided by an embodiment of the present invention includes a reeling device 10, a clamping device 20, and a conveying device 30. The reeling device 10 is connected to a winding drum 13 via a turntable 12. The turntable 12 and the winding drum 13 are driven to rotate by a first driving member 14, which can continuously release the optical cable and complete the cable unwinding operation. The winding drum 13 and the turntable 12 are detachably connected, which is convenient for replacement after the optical cable is consumed. The clamping device 20 includes a clamping rod 21 and a movable clamping block 22. A clamping space is formed between the clamping rod 21 and the movable clamping block 22, which can be clamped on a pipeline well 60. Multiple conveying devices 30 are respectively arranged on the movable clamping block 22, the clamping rod 21, and the first clamping portion 211. The conveying device 30 and the clamping device 20 work together to guide the optical cable, prevent the optical cable from rubbing against the wellhead during transportation and causing damage to the outer sheath, and ensure the quality of the optical cable construction.

[0045] In the embodiment of the present invention, the unwinding device 10 comprises a base 11, a turntable 12, a winding drum 13, and a first driving member 14. The turntable 12 is rotatably mounted on the base 11. One turntable 12 or two opposite turntables 12 can be provided. The winding drum 13 and the turntable 12 are detachably connected by fasteners such as bolts. The first driving member 14 is an electric motor or a hydraulic motor that drives the winding drum 13 to rotate by means of gear transmission, key connection, etc. The finished optical cable purchased on the market is directly wound on the winding drum 13. That is, the winding drum 13 and the optical cable are usually purchased directly. The specifications and dimensions of the turntable 12 need to be designed to match those of the winding drum 13.

[0046] The clamping device 20 includes a clamping rod 21 and a movable clamping block 22. The clamping rod 21 is L-shaped, and a first clamping portion 211 is formed at the bottom. The movable clamping block 22 is slidably arranged on the vertical section of the clamping rod 21 and can be fixed by a cable tie, a bolt, etc. The movable clamping block 22 and the first clamping portion 211 can be as shown. Figure 1 and Figure 2 As shown, it is clamped in the pipeline well 60, with the first clamping portion 211 extending into the cable threading pipeline 61 and the second clamping portion 221 clamped on the ground. Multiple conveying devices 30 are respectively arranged on the clamping rod 21 and the movable clamping block 22, which can guide and convey the optical cable. The top conveying device 30 is raised a certain distance above the ground, which can effectively prevent the outer sheath of the optical cable from rubbing against the wellhead during transportation, reducing the probability of subsequent failures and improving the construction quality of the optical cable laying.

[0047] The conveying device 30 includes two conveying wheels 31 and a second driving member 32. The second driving member 32 can be a rotating driving device such as a motor. The second driving member 32 drives the conveying wheels 31 to rotate. There is friction between the conveying wheels 31 and the outer sheath of the optical cable, which can convey the optical cable along a preset direction.

[0048] The portable installation equipment for municipal underground optical cables provided by the embodiment of the present invention can be used in conjunction with two common optical cable construction methods, namely, pulling and threading and air blowing. The installation method is convenient and simple, and can improve the quality of optical cable construction.

[0049] See also Figure 1 、 Figure 3 and Figure 7In some possible embodiments, circular baffles 131 are provided at both ends of the winding drum 13, and the winding diameter of the optical cable is smaller than the diameter of the baffles 131. The base 11 includes a bottom plate 111, a supporting plate 112, and a bracket 113. The bottom plate 111 is placed flat on the ground, and one side of the bottom plate 111 is an inclined surface connected to the ground. Two grooves are provided on the upper surface of the bottom plate 111 along the axis of the turntable 12, and the spacing between the two grooves corresponds to the spacing between the two baffles 131. The two supporting plates 112 are respectively provided in the two grooves. When the supporting plates 112 are accommodated in the corresponding grooves, the upper surfaces of the supporting plates 112 are flush with the upper surface of the bottom plate 111. The supporting plates 112 have a supporting state in which they are accommodated in the grooves, and a separated state in which they are separated from the grooves. The bracket 113 is provided on the bottom plate 111, and the turntable 12 and the first driving member 14 are respectively provided on the bracket 113. The turntable 12 and the bracket 113 are rotatably matched.

[0050] Since the winding drum 13 is large and heavy, it usually needs to be rolled and transferred to the unwinding device 10. In order to facilitate the installation of the winding drum 13 on the turntable 12, baffles 131 are provided at both ends of the winding drum 13. The baffles 131 can be integrally formed and provided on the winding drum 13. When transferring, the two baffles 131 act as wheels to support the winding drum 13 to roll on the ground. Figure 7 As shown, one side of the base plate 111 is provided with an inclined surface, which facilitates the winding drum 13 to roll along the inclined surface and the support plate 112 between the two turntables 12. When the winding drum 13 moves between the two turntables 12, the winding drum 13 and the turntables 12 are coaxially aligned. At this point, the winding drum 13 and the turntables 12 can be connected as a whole using fasteners. After the connection is completed, the winding drum 13 can rotate with the turntables 12. To prevent friction and interference between the baffle 131 and the support plate 112 during the rotation of the winding drum 13, the support plate 112 can be removed from the groove.

[0051] In addition to the above implementations, see Figure 1 、 Figure 3 and Figure 7 In some possible embodiments, the height of the turntable 12 is higher than that of the winding drum 13. A limit groove is defined on the upper surface of the support plate 112. The limit groove has an arcuate cross-section and is used to accommodate the baffle 131. The base 11 also includes a lifting rod, which is used to drive the support plate 112 upward to align the winding drum 13 and the turntable 12. The two are then fixed together using fasteners. The lifting rod then drives the support plate 112 downward, which also prevents friction between the support plate 112 and the baffle 131. To prevent the winding drum 13 from shaking, the support plate 112 is provided with an arcuate limit groove to limit the position of the winding drum 13.

[0052] See also Figure 1 、 Figure 3 and Figure 7In some possible embodiments, the turntable 12 is provided with a plurality of first mounting holes along its circumferential direction, and the first mounting holes are light holes. The end of the winding drum 13 is provided with a plurality of second mounting holes along its circumferential direction, and the second mounting holes are threaded holes. The first mounting holes and the second mounting holes correspond to each other coaxially. The unwinding device 10 also includes a connecting bolt 15, which is passed through the first mounting hole and threadedly engaged with the second mounting hole, so as to connect the winding drum 13 and the turntable 12 as a whole.

[0053] See also Figure 4 In some possible embodiments, the movable clamping block 22 further includes a sliding sleeve 222, a spring and a pressure wheel 223. The sliding sleeve 222 has a through sliding groove along the vertical direction, and the sliding groove slides with the clamping rod 21. One side wall of the sliding groove is provided with an adjustment groove along the vertical direction. The second clamping portion 221 is strip-shaped, and one end of the second clamping portion 221 slides with the adjustment groove; the spring is arranged between the bottom of the second clamping portion 221 and the bottom of the adjusting groove, and the spring is configured with a pre-tightening force to move the second clamping portion 221 upward; the pressure wheel 223 is arranged above the second clamping portion 221 and is eccentrically connected to the sliding sleeve 222 for rotation. The outer peripheral surface of the pressure wheel 223 has an elastic rubber layer, and the rotating axis of the pressure wheel 223 is coaxially connected to the force transmission rod 225. During the rotation of the pressure wheel 223 around its own rotating axis, the elastic rubber layer can abut against the second clamping portion 221.

[0054] In this embodiment, the sliding sleeve 222 slides with the clamping rod 21. The cross-sectional shape of the clamping rod 21 can be square, triangular, etc. The second clamping portion 221 slides with the sliding sleeve 222 through an adjustment groove. A spring is provided under the second clamping portion 221. The spring is in a compressed state and applies an upward elastic force to the second clamping portion 221.

[0055] When installing the clamping device 20, first extend the clamping rod 21 into the pipeline well 60, so that the first clamping portion 211 extends into the cable threading pipeline 61 and abuts against the top of the cable threading pipeline 61. Then adjust the position of the movable clamping block 22 so that the second clamping portion 221 abuts against the ground, and fix the movable clamping block 22 by means of fasteners or binding ropes. Finally, pull the force transmission rod 225 by hand or foot, so that the force transmission rod 225 drives the eccentric pressure wheel 223 to rotate, so that the elastic rubber layer of the pressure wheel 223 abuts against the second clamping portion 221. The pressure wheel 223 applies downward pressure to the second clamping portion 221, so that the second clamping portion 221 and the first clamping portion 211 can be firmly clamped at the wellhead position of the pipeline well 60.

[0056] See also Figure 4 In some possible embodiments, a third mounting hole connected to the slide groove is opened on the side wall of the movable clamping block 22, and the third mounting hole is threadedly matched with a tightening screw 224, and the end of the tightening screw 224 abuts against the clamping rod 21.

[0057] See also Figure 3 、 Figure 4 、 Figure 5 and Figure 6 In some possible embodiments, the portable installation device for municipal underground optical cables further includes an air blowing device 40, which includes an air blowing die head 41 and a compressed air pump 42. The air blowing die head 41 is disposed on the first clamping portion 211 and has an air blowing channel 411 for the optical cable to pass through, and an air inlet channel 412 connected to the air blowing channel 411; the compressed air pump 42 is disposed on the ground, and the air outlet of the compressed air pump 42 is connected to the air inlet channel 412.

[0058] This embodiment uses air blowing to deliver the optical cable into the cable duct 61. The optical cable passes through the air blowing die head 41. The compressed air pump 42 generates a high-speed, high-pressure airflow that blows into the air blowing die head 41. The airflow drives the optical cable to quickly pass through the cable duct 61. The air blowing die head 41, compressed air pump 42, and cable duct 61 are all common components for air blowing optical cable laying, and their specific structures and specifications are not limited.

[0059] See also Figure 2 、 Figure 3 and Figure 4 In some possible embodiments, the interior of the clamping rod 21 is hollow. An air inlet is provided at the upper end of the clamping rod 21, which is connected to the outlet of the compressed air pump 42. The lower end of the clamping rod 21 is connected to the air inlet channel 412. The clamping rod 21 can be made by bending a hollow steel pipe. The clamping rod 21 serves as both a supporting member and a gas conveying member, achieving two goals at once.

[0060] The air blowing die head 41 and the clamping rod 21 can be fixedly connected or detachably connected, so as to facilitate replacement of air blowing die heads 41 of different models.

[0061] See also Figure 5 and Figure 6 In some possible embodiments, an airbag 413 is provided on the outer periphery of the air blowing die head 41. The airbag 413 is connected to the air inlet channel 412. The airbag 413 is made of elastic material such as rubber. The shape of the airbag 413 is circular. After being inflated, the airbag 413 can expand radially to block the entrance of the cable threading pipe 61, improve the air tightness, and enable the high-speed airflow to drive the optical cable to move toward the outlet of the cable threading pipe 61.

[0062] According to the relevant content of the "Communication Line Engineering Design Specification" (YD 5102-2010), the pulling force during cable laying should meet the design requirements and should not exceed 80% of the allowable tension of the cable. To avoid damage to the optical fiber caused by excessive pulling force, please refer to Figures 1 to 3In some possible embodiments, a weighing device 50 is further provided between the unwinding device 10 and the clamping device 20. The unwinding speed of the unwinding device 10 is greater than or equal to the feeding speed of the conveying device 30. During the operation of the unwinding device 10, the optical cable located above the weighing device 50 can fall onto the top sensing surface of the weighing device 50.

[0063] In this embodiment, the optical fiber above the weighing device 50 is required to droop onto the weighing device 50. When the sensing surface at the top of the weighing device 50 detects weight, it indicates that the optical cable is in a slack state, and the optical cable droops under the action of gravity. The controller is simultaneously in communication with the weighing device 50, the first drive member 14, and the second drive member 32, ensuring that the optical cable remains in a slack state during transportation. This arrangement ensures that the traction force generated by the conveying device 30 during pipe transportation does not exceed the maximum allowable traction force, helping to ensure the quality of underground optical cable installation.

[0064] It can be understood that the various parts in the above embodiments can be freely combined or deleted to form different combination embodiments. The specific contents of each combination embodiment will not be repeated here. After this description, it can be considered that the specification of the present invention has recorded various combination embodiments and can support different combination embodiments.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements shall be included in the scope of protection of this application. Therefore, the scope of protection of this application shall be based on the scope of protection of the claims.

Claims

1. A portable installation device for municipal underground optical cables, characterized in that: include: The unwinding device (10) comprises a base (11), a turntable (12), a winding drum (13) and a first driving member (14), wherein the base (11) is arranged on the ground, the turntable (12) and the base (11) are rotatably matched, the winding drum (13) is cylindrical, an optical cable is wound around the outer periphery of the winding drum (13), an end of the winding drum (13) is detachably connected to the turntable (12), and the first driving member (14) is used to drive the turntable (12) to rotate; The clamping device (20) comprises a clamping rod (21) and a movable clamping block (22), wherein the clamping rod (21) is in the shape of a vertical rod, and the lower end of the clamping rod (21) extends in the horizontal direction to form a first clamping portion (211), and the movable clamping block (22) is movably arranged on the clamping rod (21), and the movable clamping block (22) has a second clamping portion (221) extending in the horizontal direction, and a clamping space for clamping the pipeline well (60) is formed between the first clamping portion (211) and the second clamping portion (221); A plurality of conveying devices (30) are respectively arranged on the movable clamping block (22), the vertical section of the clamping rod (21) and the first clamping portion (211). The plurality of conveying devices (30) are connected in series to form a conveying path for the optical cable. Each of the conveying devices (30) has two conveying wheels (31) and a second driving member (32). The free end of the optical cable is passed between the two conveying wheels (31). The conveying wheel (31) has a wheel groove for accommodating the optical cable. The second driving member (32) is used to drive the conveying wheel (31) to rotate around its own axis.

2. A portable installation device for municipal underground optical cables according to claim 1, characterized in that: Circular baffles (131) are respectively provided at both ends of the winding drum (13), the winding diameter of the optical cable is smaller than the diameter of the baffles (131), and the base (11) comprises: A bottom plate (111) is placed flat on the ground, one side of the bottom plate (111) is an inclined surface connected to the ground, and the upper surface of the bottom plate (111) is provided with two grooves spaced apart along the axis of the turntable (12), and the spacing between the two grooves corresponds to the spacing between the two baffles (131); Two supporting plates (112) are respectively arranged in the two grooves. When the supporting plates (112) are accommodated in the corresponding grooves, the upper surface of the supporting plates (112) is flush with the upper surface of the bottom plate (111). The supporting plates (112) have a supporting state in which they are accommodated in the grooves, and a separated state in which they are separated from the grooves. The bracket (113) is provided on the bottom plate (111), the turntable (12) and the first driving member (14) are respectively provided on the bracket (113), and the turntable (12) and the bracket (113) are rotatably matched.

3. A portable installation device for municipal underground optical cables according to claim 2, characterized in that: A limiting groove is provided on the upper surface of the supporting plate (112), wherein the cross section of the limiting groove is arc-shaped and is used to accommodate the baffle (131). The base (11) further comprises a lifting rod, wherein the lifting rod is used to drive the supporting plate (112) to move up and down.

4. A portable installation device for municipal underground optical cables according to claim 1, characterized in that: The turntable (12) is provided with a plurality of first mounting holes along its circumferential direction, wherein the first mounting holes are light holes. The end of the winding drum (13) is provided with a plurality of second mounting holes along its circumferential direction, wherein the second mounting holes are threaded holes. The first mounting holes and the second mounting holes are coaxially corresponding to each other. The unwinding device (10) further includes a connecting bolt (15), wherein the connecting bolt (15) is passed through the first mounting hole and is threadedly engaged with the second mounting hole.

5. A portable installation device for municipal underground optical cables according to claim 1, characterized in that: The movable clamp (22) further comprises: The sliding sleeve (222) has a through sliding groove in the vertical direction, the sliding groove is in sliding engagement with the clamping rod (21), a side wall of the sliding groove is provided with an adjustment groove in the vertical direction, the second clamping portion (221) is strip-shaped, and one end of the second clamping portion (221) is in sliding engagement with the adjustment groove; a spring, disposed between the lower portion of the second clamping portion (221) and the bottom of the adjustment slot, the spring being configured with a preload force for causing the second clamping portion (221) to move upward; A pressure wheel (223) is provided above the second clamping portion (221) and is eccentrically connected to the sliding sleeve (222). The outer peripheral surface of the pressure wheel (223) has an elastic rubber layer. The rotation axis of the pressure wheel (223) is coaxially connected to a force transmission rod (225). When the pressure wheel (223) rotates around its own rotation axis, the elastic rubber layer can abut against the second clamping portion (221).

6. A portable installation device for municipal underground optical cables according to claim 5, characterized in that: A third mounting hole communicating with the slide groove is provided on the side wall of the movable clamping block (22); a tightening screw (224) is threadedly engaged with the third mounting hole; and an end of the tightening screw (224) abuts against the clamping rod (21).

7. A portable installation device for municipal underground optical cables according to claim 1, characterized in that: The portable installation device for municipal underground optical cables further comprises an air blowing device (40), wherein the air blowing device (40) comprises: An air blowing die head (41) is provided on the first clamping portion (211), the air blowing die head (41) having an air blowing channel (411) for the optical cable to pass through, and an air inlet channel (412) communicating with the air blowing channel (411); A compressed air pump (42) is provided on the ground, and an air outlet end of the compressed air pump (42) is in communication with the air inlet channel (412).

8. A portable installation device for municipal underground optical cables according to claim 7, characterized in that: The interior of the clamping rod (21) is hollow, and an air inlet is provided at the upper end of the clamping rod (21), the air inlet is communicated with the air outlet of the compressed air pump (42), and the lower end of the clamping rod (21) is communicated with the air inlet channel (412).

9. A portable installation device for municipal underground optical cables according to claim 8, characterized in that: An airbag (413) is provided on the outer periphery of the air blowing die head (41), the airbag (413) is in communication with the air inlet channel (412), the airbag (413) is annular, and can expand radially after being inflated.

10. A portable installation device for municipal underground optical cables according to claim 1, characterized in that: A weighing device (50) is further provided between the unwinding device (10) and the clamping device (20). The unwinding speed of the unwinding device (10) is greater than or equal to the feeding speed of the conveying device (30). During the operation of the unwinding device (10), the optical cable located above the weighing device (50) can fall onto the top sensing surface of the weighing device (50).

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