A traction device and traction method for cable laying

Abstract

A traction device and method for cable laying includes a mounting base, a connecting assembly, several moving assemblies, several power mechanisms, a limiting seat, and a clamping assembly. One end of the connecting assembly is connected to the inner side of the mounting base, the other end of the connecting assembly is fixedly connected to one side of the limiting seat, and the other side of the limiting seat is fixedly connected to the clamping assembly. The moving assembly is provided on the outer side of the connecting assembly, and the power mechanism is provided on the inner side of the connecting assembly. The moving assembly is connected to the power mechanism. During use, the cable is loaded into the clamping assembly, and the connecting assembly is used to make the moving assembly conform to the inner wall of the underground pre-buried cable conduit. The power mechanism then provides power to the moving assembly to achieve cable traction and laying. Therefore, this design can adapt to the traction of cables of different sizes.

Description

Technical Field

[0001] The present invention relates to a traction device and a traction method, belonging to the technical field of cable traction, and in particular to a traction device and a traction method for cable laying. Background Art

[0002] A cable refers to a conductor equipped with an insulation layer and a protective outer sheath. It is composed of multiple strands of insulated conductors and is often installed in the air or underground or underwater for telecommunications or power transmission. Among them, underground cable laying is usually done in underground pre-buried cable ducts, and the cable is then passed through the pre-buried cable duct. In order to facilitate the movement of the cable to a specified position during the underground cable laying process, a traction device is often used to pull the cable and drag the cable through the cable duct. However, existing traction devices usually use a single, non-adjustable traction structure to pull the cable, so that the traction device can only meet the traction requirements of a single specification cable and is not universal. In addition, the existing traction device pulls the cable directly, which causes friction between the cable and the inner wall of the cable duct during the traction process, thereby causing wear on the cable surface, affecting its use and easily posing a safety hazard.

[0003] The Chinese patent application with application number 201920991641.6 and application date June 27, 2019 discloses a pipeline traveler with a power-assisted traction device, comprising a body for fixing an optical cable and an impeller arranged at the front end of the body, crawler assemblies abutting against the pipe wall are provided on both sides of the body along the length direction of the body, and the crawler assemblies are slidably connected to the body along the width direction of the body, and a driving device is provided on the body to drive the crawler assembly to abut against the inner wall of the pipe; when working, the impeller rotates, and the impeller provides power for the body to slide forward, driving the body to move in the pipe; when laying the optical cable, the crawler assembly can increase the contact area between the body and the pipe, and the driving device drives the crawler assembly to abut against the inner wall of the pipe, which can increase the friction between the body and the inner wall of the pipe. During the movement of the body, the wall-grasping ability of the body can be improved, thereby increasing the pulling force of the body on the optical cable during movement, but it still has the following defects:

[0004] This design cannot accommodate different sized cable pulls.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to overcome the defects and problems of the prior art that cannot adapt to the pulling of cables of different sizes, and to provide a cable laying pulling device and a pulling method that can adapt to the pulling of cables of different sizes.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: the cable laying traction device includes a mounting seat, a connecting component, a plurality of moving components, a plurality of power mechanisms, a limiting seat, and a clamping component;

[0008] The connecting assembly includes a mounting rod, a fixed sleeve, a first movable sleeve, a second movable sleeve, a first spring, a plurality of first connecting rods, a plurality of adjustment seats, a plurality of support rods, and a plurality of second connecting rods; after the middle portion of the mounting rod is fixedly connected to the fixed sleeve, it passes through the first movable sleeve, the first spring, and the second movable sleeve in sequence, the outer side of the fixed sleeve is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to one end of the inner side of the adjustment seat, the other end of the inner side of the adjustment seat is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the outer side of the second movable sleeve; the middle portion of the first connecting rod is hinged to one end of the support rod, and the other end of the support rod is hinged to the outer side of the first movable sleeve;

[0009] The clamping assembly includes a baffle, a jacket, a connecting block, a threaded sleeve, a screw, a torsion block, a bearing, a fixed seat, and an arc-shaped clamping plate; the outer side of the baffle is connected to the jacket, the bottom of the jacket is connected to the connecting block, a threaded sleeve is provided in the middle of the connecting block, the top of the screw passes through the threaded sleeve and is connected to the bearing, the outer side of the bearing is fixedly connected to the fixed seat, the top of the fixed seat is connected to the lower part of the arc-shaped clamping plate, and the bottom of the screw is connected to the torsion block;

[0010] The inner side of the mounting seat is connected to the head end of the mounting rod, the tail end of the mounting rod is fixedly connected to one side of the limit seat, and the other side of the limit seat is fixedly connected to the baffle; a moving component is provided on the outer side of the adjustment seat, and a power mechanism is provided on the inner side of the adjustment seat, and the moving component is connected to the power mechanism; the number of the first connecting rod, adjustment seat, support rod, second connecting rod, moving component, and power mechanism are all the same.

[0011] The moving assembly includes a plurality of moving seats, a plurality of rotating wheels, and a moving crawler, and the number of the moving seats is the same as the number of the rotating wheels;

[0012] The movable seat is fixedly connected to the outer side of the adjustment seat, a rotating wheel is installed in the movable seat, the outer side of the rotating wheel is connected to the inner surface of the movable track, and the outer surface of the movable track is provided with anti-skid grooves.

[0013] The power mechanism includes a power source, a motor, a driving wheel, a transmission belt, and a transmission wheel;

[0014] The power supply is installed on the inner side of the adjustment seat, the output end of the power supply is connected to the motor, the power output end of the motor is connected to the driving wheel, the outer side of the driving wheel is connected to one side of the transmission belt, the other side of the transmission belt is connected to the transmission wheel, and the output end of the transmission wheel is connected to the rotating wheel on one side.

[0015] The cable laying traction device also includes a plurality of auxiliary clamping components, which are fixedly connected to one side of the corresponding clamping component on the adjustment seat;

[0016] The auxiliary clamping assembly includes an auxiliary plate, an auxiliary pulley, a U-shaped sleeve, a T-shaped seat, a clamping spring, and an auxiliary clamping plate;

[0017] The front end of the auxiliary plate is fixedly connected to one end of the adjusting seat, the top of the rear end of the auxiliary plate is fixedly connected to the auxiliary pulley, the bottom of the rear end of the auxiliary plate is connected to one end of the outer side of the U-shaped sleeve, the inner side of the U-shaped sleeve is slidably connected to the upper part of the T-shaped seat, the clamping spring sleeve contacts the bottom of the T-shaped seat in the middle of the T-shaped seat, the clamping spring contacts the other end of the outer side of the U-shaped sleeve, and the outer side of the bottom of the T-shaped seat is connected to one side of the auxiliary clamping plate.

[0018] The front end of the auxiliary plate is also provided with a latch block, and the interior of the adjustment seat is provided with a positioning pin groove corresponding to the latch block, and the latch block is inserted into the positioning pin groove inside the adjustment seat;

[0019] A reinforcement seat is provided at the bottom of the rear end of the auxiliary plate, and the reinforcement seat is connected to the outer side of the U-shaped sleeve.

[0020] A guide telescopic rod is also installed between the U-shaped sleeve and the T-shaped seat.

[0021] The number of the auxiliary clamping components is consistent with the number of the adjustment seats.

[0022] The limiting seat is further provided with a threaded column, and the mounting rod is provided with a threaded groove corresponding to the threaded column, and the limiting seat and the mounting rod are threadedly connected via the threaded column.

[0023] An auxiliary traction ring seat is also installed on the outer side of the mounting seat.

[0024] The pulling method comprises the following steps:

[0025] Step 1: Place the end of the cable into the jacket and fit it close to the baffle. According to the size of the cable, turn the twisting block so that it drives the screw to move upward along the threaded sleeve. Then, the screw rotates in the bearing and pushes the fixed seat to move, so that the fixed seat pushes the arc-shaped clamping plate to squeeze and fix the cable.

[0026] Step 2: First, insert the mounting base into the underground pre-buried cable conduit. The inner wall of the conduit squeezes the movable assembly, so that the movable assembly pushes the adjustment base downward. When the adjustment base moves downward, it drives the first connecting rod and the second connecting rod to move inward. At the same time, the first connecting rod pushes the support rod, the support rod pushes the first movable sleeve, and the second connecting rod pushes the second movable sleeve, so that the first movable sleeve and the second movable sleeve move toward the middle along the mounting rod, thereby squeezing the first spring, causing the first spring to be compressed and deformed. At the same time, the rebound force generated acts in the opposite direction on the movable assembly, so that the movable assembly is tightly attached to the inner wall of the underground pre-buried cable conduit;

[0027] Step 3: Start the power mechanism first, which transmits power to the moving component, and then the moving component moves along the inner wall of the underground pre-buried cable pipeline in a crawler-like manner within the pipeline.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure is, for example, that two guide rails are connected along the longitudinal axis of the sliding panel, and the guide rails are connected along the longitudinal axis of the sliding panel. The invention relates to a method for connecting a cable clamping assembly to a power mechanism. When the cable clamping assembly is used, the end of the cable is first placed in the clamping assembly, and the screw is driven to move along the threaded sleeve by rotating the torsion block, so that the screw pushes the fixing seat to move, and then the fixing seat pushes the arc-shaped clamping plate to squeeze and fix cables of different sizes. The mounting seat is then inserted into the underground pre-buried cable pipeline, and the inner wall of the pipeline is used to squeeze the moving assembly, so that the moving assembly pushes the connecting assembly inward. Due to the reaction force generated by the connecting assembly, the moving assembly is tightly attached to the inner wall of the pipeline. Under the action of the power mechanism, the moving assembly is pulled and laid along the inner wall of the pipeline. Because the size of the clamping assembly is adjustable, the application range is wide, and there is no need to frequently replace the cable clamping assembly according to the cable size. Moreover, the operation is convenient, the work efficiency is improved, and the labor cost is reduced. Because the moving assembly is tightly attached to the inner wall of the pipeline, the friction between the cable and the inner wall of the pipeline during the pulling process is avoided, thereby reducing the wear of the cable. Therefore, the present invention can not only pull and lay cables in the pipeline, but also is applicable to cables of different sizes, thereby improving the work efficiency.

[0030] 2. In a traction device and traction method for cable laying, the mobile assembly includes a plurality of mobile seats, a plurality of rotating wheels, and a mobile crawler. The number of the mobile seats is the same as that of the rotating wheels. The mobile seat is fixedly connected to the outer side of the adjustment seat. The mobile seat is equipped with a rotating wheel. The outer side of the rotating wheel is connected to the inner surface of the mobile crawler. The outer surface of the mobile crawler is provided with anti-skid grooves. The power mechanism includes a power supply, a motor, a driving wheel, a transmission belt, and a driving wheel. The power supply is installed on the inner side of the adjustment seat. The output end of the power supply is connected to the motor. The power output end of the motor is connected to the driving wheel. The outer side is connected to one side of the transmission belt, the other side of the transmission belt is connected to the transmission wheel, and the output end of the transmission wheel is connected to the rotating wheel on one side; when in use, the power supply provides electricity to the motor, the motor drives the driving wheel to rotate, thereby driving the transmission belt to move, the transmission belt drives the transmission wheel to rotate, the transmission wheel drives the rotating wheel to move, and the rotating wheel drives the mobile crawler to perform crawler-type mobile traction in the underground pre-buried cable pipeline. Because the mobile crawler directly contacts the inner wall of the underground pre-buried cable pipeline, friction between the cable and the inner wall of the pipeline is avoided, and the wear of the cable is reduced. In addition, the anti-skid pattern on the outer surface of the mobile crawler makes the mobile traction more stable. Therefore, the present invention can not only smoothly carry out cable traction, but also reduce the wear of the cable during the traction process, thereby ensuring the laying quality of the cable.

[0031] 3. In a traction device and traction method for cable laying, the traction device for cable laying also includes several auxiliary clamping components, which are fixedly connected to one side of the corresponding clamping component on the adjusting seat; the auxiliary clamping component includes an auxiliary plate, an auxiliary pulley, a U-shaped sleeve, a T-shaped seat, a clamping spring, and an auxiliary clamping plate; the front end of the auxiliary plate is fixedly connected to one end of the adjusting seat, the top of the rear end of the auxiliary plate is fixedly connected to the auxiliary pulley, the bottom of the rear end of the auxiliary plate is connected to one end of the outer side of the U-shaped sleeve, the inner side of the U-shaped sleeve is slidably connected to the upper part of the T-shaped seat, the clamping spring sleeve contacts with the bottom of the T-shaped seat in the middle of the T-shaped seat, the clamping spring contacts with the other end of the outer side of the U-shaped sleeve, and the outer side of the bottom of the T-shaped seat is connected to one side of the auxiliary clamping plate; the front end of the auxiliary plate is also provided with a latch The U-shaped sleeve is provided with a positioning pin groove corresponding to the latch block, and the latch block is inserted into the positioning pin groove inside the adjusting seat. The bottom of the rear end of the auxiliary plate is provided with a reinforcement seat, and the reinforcement seat is connected to the outer side of the U-shaped sleeve. A guide telescopic rod is also installed between the U-shaped sleeve and the T-shaped seat. The number of the auxiliary clamping components is consistent with the number of the adjusting seat. When in use, when the adjusting seat moves downward for adjustment, the adjusting seat synchronously drives the auxiliary plate and the auxiliary pulley to move into the underground pre-buried cable conduit and contact with the inner wall of the conduit, and at the same time pushes the U-shaped sleeve downward, so that the T-shaped seat pushes the auxiliary clamping plate to clamp the cable. After clamping, the T-shaped seat will squeeze the clamping spring, causing the clamping spring to compress and deform to generate a rebound force acting on the auxiliary clamping plate, so that the auxiliary clamping plate can firmly clamp the cable, effectively avoiding the cable from falling off during traction. Therefore, the present invention not only effectively reduces the friction and wear of the cable, but also improves the clamping effect on the front of the cable, and the laying effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of pulling a cable in an underground pre-buried cable duct according to the present invention.

[0033] Figure 2 It is a structural schematic diagram of the present invention.

[0034] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0035] Figure 4 It is a schematic cross-sectional structural diagram of the clamping assembly in the present invention.

[0036] Figure 5 It is an enlarged structural schematic diagram of point A in the present invention.

[0037] In the figure: mounting seat 1, mounting rod 2, fixing sleeve 3, first movable sleeve 4, second movable sleeve 5, first spring 6, first connecting rod 7, adjusting seat 8, support rod 9, second connecting rod 10, moving assembly 11, power mechanism 12, limit seat 13, clamping assembly 14, auxiliary clamping assembly 15, moving seat 16, rotating wheel 17, underground pre-buried cable conduit 18, moving crawler 19, power supply 20, motor 21, driving wheel 22, transmission belt 23, transmission wheel 24, threaded column 25, baffle 26, jacket 27, connecting block 28, threaded sleeve 29, screw 30, torsion block 31, bearing 32, fixing seat 33, arc-shaped splint 34, auxiliary plate 35, auxiliary pulley 36, U-shaped sleeve 37, T-shaped seat 38, clamping spring 39, auxiliary splint 40, guide telescopic rod 41, latch block 42, reinforcement seat 43, auxiliary traction ring seat 44, connecting assembly 45, cable 46. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] See also Figure 1 — Figure 5 The cable laying traction device includes a mounting seat 1, a connecting component 45, a plurality of moving components 11, a plurality of power mechanisms 12, a limiting seat 13, and a clamping component 14;

[0040] The connecting assembly 45 includes a mounting rod 2, a fixed sleeve 3, a first movable sleeve 4, a second movable sleeve 5, a first spring 6, a plurality of first connecting rods 7, a plurality of adjustment seats 8, a plurality of support rods 9, and a plurality of second connecting rods 10; after the middle portion of the mounting rod 2 is fixedly connected to the fixed sleeve 3, it passes through the first movable sleeve 4, the first spring 6 and the second movable sleeve 5 in sequence, the outer side of the fixed sleeve 3 is hinged to one end of the first connecting rod 7, the other end of the first connecting rod 7 is hinged to one end of the inner side of the adjustment seat 8, the other end of the inner side of the adjustment seat 8 is hinged to one end of the second connecting rod 10, and the other end of the second connecting rod 10 is hinged to the outer side of the second movable sleeve 5; the middle portion of the first connecting rod 7 is hinged to one end of the support rod 9, and the other end of the support rod 9 is hinged to the outer side of the first movable sleeve 4;

[0041] The clamping assembly 14 includes a baffle 26, a jacket 27, a connecting block 28, a threaded sleeve 29, a screw 30, a torsion block 31, a bearing 32, a fixing seat 33, and an arc-shaped clamping plate 34; the outer side of the baffle 26 is connected to the jacket 27, the bottom of the jacket 27 is connected to the connecting block 28, a threaded sleeve 29 is provided in the middle of the connecting block 28, the top of the screw 30 passes through the threaded sleeve 29 and is connected to the bearing 32, the outer side of the bearing 32 is fixedly connected to the fixing seat 33, the top of the fixing seat 33 is connected to the lower part of the arc-shaped clamping plate 34, and the bottom of the screw 30 is connected to the torsion block 31;

[0042] The inner side of the mounting seat 1 is connected to the head end of the mounting rod 2, the tail end of the mounting rod 2 is fixedly connected to one side of the limit seat 13, and the other side of the limit seat 13 is fixedly connected to the baffle 26; a moving component 11 is provided on the outer side of the adjustment seat 8, and a power mechanism 12 is provided on the inner side of the adjustment seat 8, and the moving component 11 is connected to the power mechanism 12; the number of the first connecting rod 7, the adjustment seat 8, the support rod 9, the second connecting rod 10, the moving component 11, and the power mechanism 12 are all the same.

[0043] The moving assembly 11 includes a plurality of moving seats 16, a plurality of rotating wheels 17, and a moving track 19. The number of the moving seats 16 is the same as the number of the rotating wheels 17.

[0044] The movable seat 16 is fixedly connected to the outer side of the adjustment seat 8. A rotating wheel 17 is installed in the movable seat 16. The outer side of the rotating wheel 17 is connected to the inner surface of the movable track 19. The outer surface of the movable track 19 is provided with anti-skid grooves.

[0045] The power mechanism 12 includes a power source 20, a motor 21, a driving wheel 22, a transmission belt 23, and a transmission wheel 24;

[0046] The power supply 20 is installed on the inner side of the adjustment seat 8, and the output end of the power supply 20 is connected to the motor 21. The power output end of the motor 21 is connected to the driving wheel 22. The outer side of the driving wheel 22 is connected to one side of the transmission belt 23. The other side of the transmission belt 23 is connected to the transmission wheel 24. The output end of the transmission wheel 24 is connected to the rotating wheel 17 on one side.

[0047] The cable laying traction device further comprises a plurality of auxiliary clamping components 15, which are fixedly connected to one side of the corresponding clamping component 14 on the adjustment seat 8;

[0048] The auxiliary clamping assembly 15 includes an auxiliary plate 35, an auxiliary pulley 36, a U-shaped sleeve 37, a T-shaped seat 38, a clamping spring 39, and an auxiliary clamping plate 40;

[0049] The front end of the auxiliary plate 35 is fixedly connected to one end of the adjustment seat 8, the top of the rear end of the auxiliary plate 35 is fixedly connected to the auxiliary pulley 36, the bottom of the rear end of the auxiliary plate 35 is connected to one end of the outer side of the U-shaped sleeve 37, the inner side of the U-shaped sleeve 37 is slidably connected to the upper part of the T-shaped seat 38, the clamping spring 39 is sleeved on the middle part of the T-shaped seat 38 and contacts the bottom of the T-shaped seat 38, the clamping spring 39 contacts the other end of the outer side of the U-shaped sleeve 37, and the outer side of the bottom of the T-shaped seat 38 is connected to one side of the auxiliary clamping plate 40.

[0050] The front end of the auxiliary plate 35 is further provided with a latch block 42, and the interior of the adjustment seat 8 is provided with a positioning pin groove corresponding to the latch block 42, and the latch block 42 is inserted into the positioning pin groove inside the adjustment seat 8;

[0051] A reinforcement seat 43 is provided at the bottom of the rear end of the auxiliary plate 35 , and the reinforcement seat 43 is connected to the outer side of the U-shaped sleeve 37 .

[0052] A guide telescopic rod 41 is further installed between the U-shaped sleeve 37 and the T-shaped seat 38 .

[0053] The number of the auxiliary clamping components 15 is consistent with the number of the adjustment seats 8 .

[0054] The limiting seat 13 is further provided with a threaded column 25 , and the mounting rod 2 is provided with a threaded groove corresponding to the threaded column 25 . The limiting seat 13 and the mounting rod 2 are threadedly connected via the threaded column 25 .

[0055] An auxiliary traction ring seat 44 is also installed on the outer side of the mounting seat 1.

[0056] The pulling method comprises the following steps:

[0057] Step 1: First, place the end of the cable 46 into the jacket 27 and close it to the baffle 26. According to the size of the cable 46, rotate the twisting block 31 so that the twisting block 31 drives the screw 30 to move upward along the threaded sleeve 29. Then, the screw 30 rotates in the bearing 32 and pushes the fixing seat 33 to move, so that the fixing seat 33 pushes the arc-shaped clamping plate 34 to squeeze and fix the cable 46.

[0058] Step 2: First, insert the mounting base 1 into the underground pre-buried cable duct 18. The inner wall of the duct squeezes the moving assembly 11, so that the moving assembly 11 pushes the adjusting base 8 to move downward. When the adjusting base 8 moves downward, the first connecting rod 7 and the second connecting rod 10 are driven to move inward. At the same time, the first connecting rod 7 pushes the support rod 9, the support rod 9 pushes the first movable sleeve 4, and the second connecting rod 10 pushes the second movable sleeve 5, so that the first movable sleeve 4 and the second movable sleeve 5 move toward the middle along the mounting rod 2, thereby squeezing the first spring 6, so that the first spring 6 is compressed and deformed under force. At the same time, the rebound force generated acts in the opposite direction on the moving assembly 11, so that the moving assembly 11 is tightly attached to the inner wall of the underground pre-buried cable duct 18;

[0059] Step 3: First start the power mechanism 12, which transmits power to the moving assembly 11, and then the moving assembly 11 moves along the inner wall of the underground pre-buried cable conduit 18 in a crawler-like manner.

[0060] The supplementary description of the present invention is as follows:

[0061] In the present invention, the jacket 27 is preferably a U-shaped structure.

[0062] In the present invention, the first spring 6 is preferably sleeved on the mounting rod 2 and between the first movable sleeve 4 and the second movable sleeve 5 .

[0063] The reason why the limiting seat 13 is preferably installed on the outside of the second movable sleeve 5 in the present invention is that the limiting seat 13 has a limiting effect on the second movable sleeve 5 .

[0064] In the present invention, a mounting hole adapted to the threaded sleeve 29 is preferably provided in the middle of the connecting block 28 , and the threaded sleeve 29 is installed in the mounting hole.

[0065] In the present invention, a threaded hole adapted to the screw rod 30 is preferably provided in the middle of the connecting block 28 , and the screw rod 30 is threadedly connected to the threaded hole in the middle of the connecting block 28 .

[0066] In the present invention, the inner bottom of the U-shaped sleeve 37 is preferably connected to one end of the guide telescopic rod 41 , and the other end of the guide telescopic rod 41 is connected to the top of the T-shaped seat 38 .

[0067] In the present invention, the bottom of the T-shaped seat 38 and the auxiliary clamping plate 40 are preferably fixedly connected by bolt locking.

[0068] The preferred clamping spring 39 of the present invention is sleeved on the straight rod of the T-shaped seat 38 and then contacts the opening of the U-shaped sleeve 37.

[0069] In the present invention, the straight rod portion of the T-shaped seat 38 is preferably inserted into the U-shaped sleeve 37 for sliding connection.

[0070] In the present invention, the U-shaped sleeve 37, the T-shaped seat 38 and the guide telescopic rod 41 are preferably fixedly connected by bolt locking or welding.

[0071] In the present invention, the auxiliary plate 35 and the auxiliary pulley 36 preferably perform auxiliary guiding movement of the cable 46 .

[0072] In the present invention, the preferred number of the auxiliary clamping components 15 is three.

[0073] In the present invention, the power source 20 is preferably a battery.

[0074] In the present invention, the movable seat 16 is preferably fixedly connected to both sides of the top of the adjustment seat 8 by bolt locking or welding.

[0075] In the present invention, the number of the movable base 16 and the rotating wheel 17 is preferably at least two.

[0076] The reason why the present invention preferably uses a threaded connection between the limiting seat 13 and the installation rod 2 via the threaded column 25 is that it facilitates installation and makes the connection more stable.

[0077] The present invention preferably adds an auxiliary clamping assembly 15 when the underground pre-buried cable duct 18 is too long, and clamps and fixes the front end of the cable 46 through the clamping assembly 14 and the auxiliary clamping assembly 15 to prevent it from falling off and wearing.

[0078] The reason why the present invention preferably installs a guide telescopic rod 41 between the U-shaped sleeve 37 and the T-shaped seat 38 is that the T-shaped seat 38 has the effect of vertical guiding movement.

[0079] The present invention preferably provides a latch block 42 at the front end of the auxiliary plate 35 and a reinforcement seat 43 at the bottom of the rear end of the auxiliary plate 35 for improving the installation and connection effect of the auxiliary plate 35 and improving the installation stability of the U-shaped sleeve 37 at the same time.

[0080] The reason why the auxiliary traction ring seat 44 is preferably installed on the outer side of the mounting seat 1 of the present invention is that the traction ring seat 44 can assist the external traction equipment to perform traction movement.

[0081] Example 1:

[0082] See also Figure 1 — Figure 5A traction device for laying cables, comprising a mounting base 1, a connecting assembly 45, a plurality of movable assemblies 11, a plurality of power mechanisms 12, a limiting seat 13, and a clamping assembly 14; the connecting assembly 45 comprises a mounting rod 2, a fixed sleeve 3, a first movable sleeve 4, a second movable sleeve 5, a first spring 6, a plurality of first connecting rods 7, a plurality of adjustment seats 8, a plurality of support rods 9, and a plurality of second connecting rods 10; after the middle portion of the mounting rod 2 is fixedly connected to the fixed sleeve 3, it passes through the first movable sleeve 4, the first spring 6 in sequence The outer side of the fixed sleeve 3 is hinged to one end of the first connecting rod 7 and the second movable sleeve 5, the other end of the first connecting rod 7 is hinged to one end of the inner side of the adjustment seat 8, the other end of the inner side of the adjustment seat 8 is hinged to one end of the second connecting rod 10, and the other end of the second connecting rod 10 is hinged to the outer side of the second movable sleeve 5; the middle part of the first connecting rod 7 is hinged to one end of the support rod 9, and the other end of the support rod 9 is hinged to the outer side of the first movable sleeve 4; the clamping assembly 14 includes a baffle 26, a sleeve 27, Connecting block 28, threaded sleeve 29, screw 30, torsion block 31, bearing 32, fixed seat 33, arc-shaped splint 34; the outer side of the baffle 26 is connected to the jacket 27, the bottom of the jacket 27 is connected to the connecting block 28, the middle of the connecting block 28 is provided with a threaded sleeve 29, the top of the screw 30 passes through the threaded sleeve 29 and is connected to the bearing 32, the outer side of the bearing 32 is fixedly connected to the fixed seat 33, the top of the fixed seat 33 is connected to the lower part of the arc-shaped splint 34, the bottom of the screw 30 is connected to the torsion block 3 1; the inner side of the mounting seat 1 is connected to the head end of the mounting rod 2, the tail end of the mounting rod 2 is fixedly connected to one side of the limit seat 13, and the other side of the limit seat 13 is fixedly connected to the baffle 26; the outer side of the adjustment seat 8 is provided with a moving component 11, and the inner side of the adjustment seat 8 is provided with a power mechanism 12, and the moving component 11 is connected to the power mechanism 12; the number of the first connecting rod 7, the adjustment seat 8, the support rod 9, the second connecting rod 10, the moving component 11, and the power mechanism 12 are all the same. Among them, the number of the first connecting rod 7, the support rod 9, and the second connecting rod 10 is three, and they are installed in a herringbone shape on the fixed sleeve 3, the first movable sleeve 4, and the second movable sleeve 5; the number of the adjustment seat 8, the moving component 11, and the power mechanism 12 is also three.

[0083] When in use, first place the end of the cable 46 in the jacket 27 and make it close to the baffle 26, then rotate the torsion block 31, so that the torsion block 31 drives the screw 30 to move upward along the threaded sleeve 29, and the screw 30 rotates in the bearing 32 while pushing the fixed seat 33, so that the fixed seat 33 pushes the arc-shaped clamping plate 34 to squeeze and fix the cable 46, and then insert the mounting seat 1 into the underground pre-buried cable duct 18, and squeeze the moving component 11 through the inner wall of the underground pre-buried cable duct 18, so that the moving component 11 pushes the adjusting seat 8 to move downward, and the adjusting seat 8 drives the first connecting rod 7 and the second connecting rod 10 downward, and at the same time the first connecting rod 7 pushes the support rod 9, the support rod 9 pushes the first movable sleeve 4, and the second connecting rod 10 pushes the second movable sleeve 5, so that the first movable sleeve 4 and the second movable sleeve 5 are moved along The mounting rod 2 moves toward the middle and squeezes the spring 6, causing the spring 6 to be compressed and deformed under force, while generating a rebound force, which acts in the opposite direction on the moving component 11, causing the moving component 11 to be tightly attached to the inner wall of the underground pre-buried cable duct 18, and then the power mechanism 12 transmits power to the moving component 11 to move, so that it can pull the cable to move in the underground pre-buried cable duct 18. Since the clamping component 14 can be adjusted and fixed according to the size of the cable 46, there is no need to replace the clamping component 14 back and forth due to the size of the cable 46. It is more versatile, making this design easy to operate during use, improving work efficiency, and reducing labor costs. At the same time, because the moving component 11 is in close contact with the inner wall of the duct, friction and damage of the cable during traction of the duct are avoided.

[0084] Example 2:

[0085] The basic content is the same as Example 1, except that: the moving component 11 includes a plurality of moving seats 16, a plurality of rotating wheels 17, and a moving track 19, and the number of the moving seats 16 and the rotating wheels 17 are the same; the moving seat 16 is fixedly connected to the outer side of the adjustment seat 8, and a rotating wheel 17 is installed in the moving seat 16, and the outer side of the rotating wheel 17 is connected to the inner surface of the moving track 19, and the outer surface of the moving track 19 is provided with anti-slip grooves, wherein the number of the rotating wheels 17 and the moving seat 16 are both two.

[0086] When in use, the power mechanism 12 drives the wheel 17 on one side to rotate, so that the wheel 17 on this side drives the moving crawler 19 to move, and the moving crawler 19 drives the wheel 17 on the other side to rotate and transport the moving crawler 19, so that it can perform crawler-type moving traction in the underground pre-buried cable pipeline 18. Because the anti-skid grooves on the outer surface of the moving crawler 19 increase the friction between the moving crawler 19 and the inner wall of the pipeline, the present invention makes the process of pulling the cable 46 in the pipeline more stable and the traction effect better.

[0087] Example 3:

[0088] The basic content is the same as that of Example 1, except that: the power mechanism 12 includes a power supply 20, a motor 21, a driving wheel 22, a transmission belt 23, and a transmission wheel 24; the power supply 20 is installed on the inner side of the adjustment seat 8, the output end of the power supply 20 is connected to the motor 21, the power output end of the motor 21 is connected to the driving wheel 22, the outer side of the driving wheel 22 is connected to one side of the transmission belt 23, the other side of the transmission belt 23 is connected to the transmission wheel 24, and the output end of the transmission wheel 24 is connected to the rotating wheel 17 on one side.

[0089] During use, the power supply 20 provides power output to the motor 21, so that the motor 21 drives the driving wheel 22 to rotate, the driving wheel 22 drives the transmission belt 23 to move, the transmission belt 23 drives the transmission wheel 24 to rotate, and the transmission wheel 24 drives the rotating wheel 17 to rotate, and then the rotating wheel 17 drives the moving crawler 19 to perform crawler-type mobile traction in the underground pre-buried cable pipeline 18. Because the power mechanism 12 is arranged inside the device, no external power supply is required, which makes the present invention more convenient to use and suitable for cable traction in various scenarios.

[0090] Example 4:

[0091] The basic content is the same as Example 1, except that: the cable laying traction device also includes a plurality of auxiliary clamping components 15, which are fixedly connected to one side of the corresponding clamping component 14 on the adjusting seat 8; the auxiliary clamping component 15 includes an auxiliary plate 35, an auxiliary pulley 36, a U-shaped sleeve 37, a T-shaped seat 38, a clamping spring 39, and an auxiliary clamping plate 40; the front end of the auxiliary plate 35 is fixedly connected to one end of the adjusting seat 8, the top of the rear end of the auxiliary plate 35 is fixedly connected to the auxiliary pulley 36, the bottom of the rear end of the auxiliary plate 35 is connected to one end of the outer side of the U-shaped sleeve 37, the inner side of the U-shaped sleeve 37 is slidably connected to the upper part of the T-shaped seat 38, the clamping spring 39 is sleeved on the middle part of the T-shaped seat 38 and contacts the bottom of the T-shaped seat 38, the clamping spring 39 contacts the other end of the outer side of the U-shaped sleeve 37, and the outer side of the bottom of the T-shaped seat 38 is connected to one side of the auxiliary clamping plate 40.

[0092] During application, when the adjusting seat 8 moves downward for adjustment, the adjusting seat 8 will synchronously drive the auxiliary plate 35 to move downward, thereby driving the auxiliary pulley 36 to move into the underground pre-buried cable pipe 18 and contact the inner wall of the pipe. At the same time, the auxiliary plate 35 pushes the U-shaped sleeve 37 downward, and the U-shaped sleeve 37 pushes the T-shaped seat 38 and the clamping spring 39 downward. The T-shaped seat 38 pushes the auxiliary clamping plate 40 to clamp the cable 46. After clamping, the T-shaped seat 38 will squeeze the clamping spring 39, causing the clamping spring 39 to compress and deform to generate a rebound force acting on the auxiliary clamping plate 40, so that the auxiliary clamping plate 40 can firmly clamp the cable 46; when the underground pre-buried cable pipe 18 is too long, by adding and installing the auxiliary clamping assembly 15, the clamping assembly 14 is combined with the auxiliary clamping assembly 15 to clamp and fix the front end of the cable 46 to prevent it from falling off and wearing.

[0093] Example 5:

[0094] The basic content is the same as that of embodiment 4, except that a guide telescopic rod 41 is further installed between the U-shaped sleeve 37 and the T-shaped seat 38 .

[0095] During use, when the T-shaped seat 38 pushes the auxiliary clamping plate 40 to clamp the cable 46, the T-shaped seat 38 will push the guide telescopic rod 41, causing the guide telescopic rod 41 to contract and bring the T-shaped seat 38 into the U-shaped sleeve 37, so that the T-shaped seat 38 has the effect of vertical guiding movement, so that the auxiliary clamping plate 40 can stably clamp the cable 46.

[0096] Example 6:

[0097] The basic content is the same as that of Example 1, except that: a latch block 42 is further provided at the front end of the auxiliary plate 35, a positioning pin groove corresponding to the latch block 42 is provided inside the adjustment seat 8, and the latch block 42 is inserted into the positioning pin groove inside the adjustment seat 8; a reinforcement seat 43 is provided at the bottom of the rear end of the auxiliary plate 35, and the reinforcement seat 43 is connected to the outer side of the U-shaped sleeve 37.

[0098] During application, when installing the auxiliary plate 35, first insert the pin block 42 into the positioning pin groove in the adjustment seat 8, and then lock the adjustment seat 8 and the auxiliary plate 35 with bolts. At the same time, install the reinforcement seat 43 at the connection with the U-shaped sleeve 37 to improve the installation stability of the U-shaped sleeve 37, thereby improving the stability during traction.

[0099] Example 7:

[0100] The basic content is the same as that of embodiment 1, except that an auxiliary traction ring seat 44 is further installed on the outer side of the mounting seat 1 .

[0101] During application, when the power source 20 is insufficient, the auxiliary traction ring seat 44 can be connected to an external traction device for traction and movement. It can be used in various situations and has a wide range of applications.

[0102] Example 8:

[0103] The basic content is the same as that of Example 1, except that: the limit seat 13 is further installed with a threaded column 25, and the mounting rod 2 is provided with a threaded groove corresponding to the threaded column 25, and the limit seat 13 and the mounting rod 2 are threadedly connected through the threaded column 25.

[0104] When in use, during the installation process, the limiting seat 13 is fixedly connected to the installation rod 2 through the threaded column 25, so that the limiting seat 13 can be stably installed on the installation rod 2 and can also limit the second movable sleeve 5.

[0105] Example 9:

[0106] The basic content is the same as that of Example 1, except that the pulling method includes the following steps:

[0107] Step 1: First, place the end of the cable 46 into the jacket 27 and close it to the baffle 26. According to the size of the cable 46, rotate the twisting block 31 so that the twisting block 31 drives the screw 30 to move upward along the threaded sleeve 29. Then, the screw 30 rotates in the bearing 32 and pushes the fixing seat 33 to move, so that the fixing seat 33 pushes the arc-shaped clamping plate 34 to squeeze and fix the cable 46.

[0108] Step 2: First, insert the mounting base 1 into the underground pre-buried cable duct 18. The inner wall of the duct squeezes the moving assembly 11, so that the moving assembly 11 pushes the adjusting base 8 to move downward. When the adjusting base 8 moves downward, the first connecting rod 7 and the second connecting rod 10 are driven to move inward. At the same time, the first connecting rod 7 pushes the support rod 9, the support rod 9 pushes the first movable sleeve 4, and the second connecting rod 10 pushes the second movable sleeve 5, so that the first movable sleeve 4 and the second movable sleeve 5 move toward the middle along the mounting rod 2, thereby squeezing the first spring 6, so that the first spring 6 is compressed and deformed under force. At the same time, the rebound force generated acts in the opposite direction on the moving assembly 11, so that the moving assembly 11 is tightly attached to the inner wall of the underground pre-buried cable duct 18;

[0109] Step 3: First start the power mechanism 12, which transmits power to the moving assembly 11, and then the moving assembly 11 moves along the inner wall of the underground pre-buried cable conduit 18 in a crawler-like manner.

[0110] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A traction device for cable laying, characterized in that: The cable laying traction device comprises a mounting seat (1), a connecting assembly (45), a plurality of moving assemblies (11), a plurality of power mechanisms (12), a limiting seat (13), and a clamping assembly (14); The connecting assembly (45) comprises a mounting rod (2), a fixed sleeve (3), a first movable sleeve (4), a second movable sleeve (5), a first spring (6), a plurality of first connecting rods (7), a plurality of adjustment seats (8), a plurality of support rods (9), and a plurality of second connecting rods (10); after the middle portion of the mounting rod (2) is fixedly connected to the fixed sleeve (3), it passes through the first movable sleeve (4), the first spring (6), and the second movable sleeve (5) in sequence; the outer side of the fixed sleeve (3) is hinged to one end of the first connecting rod (7), the other end of the first connecting rod (7) is hinged to one end of the inner side of the adjustment seat (8), the other end of the inner side of the adjustment seat (8) is hinged to one end of the second connecting rod (10), and the other end of the second connecting rod (10) is hinged to the outer side of the second movable sleeve (5); the middle portion of the first connecting rod (7) is hinged to one end of the support rod (9), and the other end of the support rod (9) is hinged to the outer side of the first movable sleeve (4); The clamping assembly (14) includes a baffle (26), a jacket (27), a connecting block (28), a threaded sleeve (29), a screw (30), a torsion block (31), a bearing (32), a fixing seat (33), and an arc-shaped clamp (34); the outer side of the baffle (26) is connected to the jacket (27), the bottom of the jacket (27) is connected to the connecting block (28), a threaded sleeve (29) is provided in the middle of the connecting block (28), the top of the screw (30) passes through the threaded sleeve (29) and is connected to the bearing (32), the outer side of the bearing (32) is fixedly connected to the fixing seat (33), the top of the fixing seat (33) is connected to the lower part of the arc-shaped clamp (34), and the bottom of the screw (30) is connected to the torsion block (31); The inner side of the mounting seat (1) is connected to the head end of the mounting rod (2), the tail end of the mounting rod (2) is fixedly connected to one side of the limit seat (13), and the other side of the limit seat (13) is fixedly connected to the baffle (26); a moving component (11) is provided on the outer side of the adjustment seat (8), a power mechanism (12) is provided on the inner side of the adjustment seat (8), and the moving component (11) is connected to the power mechanism (12); the number of the first connecting rod (7), the adjustment seat (8), the support rod (9), the second connecting rod (10), the moving component (11), and the power mechanism (12) are all the same.

2. A cable laying traction device according to claim 1, characterized in that: The moving assembly (11) includes a plurality of moving seats (16), a plurality of rotating wheels (17), and a moving crawler (19), wherein the number of the moving seats (16) and the number of rotating wheels (17) are the same; The movable seat (16) is fixedly connected to the outer side of the adjustment seat (8), a rotating wheel (17) is installed in the movable seat (16), the outer side of the rotating wheel (17) is connected to the inner surface of the movable crawler (19), and the outer surface of the movable crawler (19) is provided with anti-skid grooves.

3. A cable laying traction device according to claim 2, characterized in that: The power mechanism (12) includes a power source (20), a motor (21), a driving wheel (22), a transmission belt (23), and a transmission wheel (24); The power supply (20) is installed inside the adjustment seat (8), the output end of the power supply (20) is connected to the motor (21), the power output end of the motor (21) is connected to the driving wheel (22), the outer side of the driving wheel (22) is connected to one side of the transmission belt (23), the other side of the transmission belt (23) is connected to the transmission wheel (24), and the output end of the transmission wheel (24) is connected to the rotating wheel (17) on one side.

4. A cable laying traction device according to claim 1, 2 or 3, characterized in that: The cable laying traction device further comprises a plurality of auxiliary clamping assemblies (15), wherein the auxiliary clamping assemblies (15) are fixedly connected to one side of the corresponding clamping assembly (14) on the adjustment seat (8); The auxiliary clamping assembly (15) includes an auxiliary plate (35), an auxiliary pulley (36), a U-shaped sleeve (37), a T-shaped seat (38), a clamping spring (39), and an auxiliary clamping plate (40); The front end of the auxiliary plate (35) is fixedly connected to one end of the adjustment seat (8), the top of the rear end of the auxiliary plate (35) is fixedly connected to the auxiliary pulley (36), the bottom of the rear end of the auxiliary plate (35) is connected to one end of the outer side of the U-shaped sleeve (37), the inner side of the U-shaped sleeve (37) is slidably connected to the upper part of the T-shaped seat (38), the clamping spring (39) is sleeved on the middle part of the T-shaped seat (38) and contacts the bottom of the T-shaped seat (38), the clamping spring (39) contacts the other end of the outer side of the U-shaped sleeve (37), and the outer side of the bottom of the T-shaped seat (38) is connected to one side of the auxiliary clamping plate (40).

5. A cable laying traction device according to claim 4, characterized in that: The front end of the auxiliary plate (35) is further provided with a latch block (42), and a positioning pin groove corresponding to the latch block (42) is provided inside the adjustment seat (8), and the latch block (42) is inserted into the positioning pin groove inside the adjustment seat (8); A reinforcement seat (43) is provided at the bottom of the rear end of the auxiliary plate (35), and the reinforcement seat (43) is connected to the outer side of the U-shaped sleeve (37).

6. A cable laying traction device according to claim 4, characterized in that: A guide telescopic rod (41) is also installed between the U-shaped sleeve (37) and the T-shaped seat (38).

7. A cable laying traction device according to any one of claim 4, characterized in that: The number of the auxiliary clamping components (15) is consistent with the number of the adjustment seats (8).

8. A cable laying traction device according to claim 1, 2 or 3, characterized in that: The limiting seat (13) is also equipped with a threaded column (25), and the mounting rod (2) is provided with a threaded groove corresponding to the threaded column (25). The limiting seat (13) and the mounting rod (2) are threadedly connected via the threaded column (25).

9. A cable laying traction device according to claim 1, 2 or 3, characterized in that: An auxiliary traction ring seat (44) is also installed on the outer side of the mounting seat (1).

10. A traction method for a cable laying traction device according to claim 1, characterized in that: The pulling method comprises the following steps: The first step: first, place the end of the cable (46) into the jacket (27) and close it to the baffle (26). According to the size of the cable (46), rotate the twisting block (31) so that the twisting block (31) drives the screw (30) to move upward along the threaded sleeve (29). Then, the screw (30) rotates in the bearing (32) and pushes the fixed seat (33) to move, so that the fixed seat (33) pushes the arc-shaped clamping plate (34) to squeeze and fix the cable (46); Step 2: First, insert the mounting seat (1) into the underground pre-buried cable conduit (18), and the inner wall of the conduit squeezes the moving assembly (11), so that the moving assembly (11) pushes the adjustment seat (8) to move downward. When the adjustment seat (8) moves downward, it drives the first connecting rod (7) and the second connecting rod (10) to move inward. At the same time, the first connecting rod (7) pushes the support rod (9), the support rod (9) pushes the first movable sleeve (4), and the second connecting rod (10) pushes the second movable sleeve (5), so that the first movable sleeve (4) and the second movable sleeve (5) move toward the middle along the mounting rod (2), and then squeezes the first spring (6), so that the first spring (6) is compressed and deformed by force, and the rebound force generated at the same time acts in the opposite direction on the moving assembly (11), so that the moving assembly (11) is tightly attached to the inner wall of the underground pre-buried cable conduit (18); Step 3: First, the power mechanism (12) is started, and the power mechanism (12) transmits power to the moving assembly (11), and then the moving assembly (11) is moved along the inner wall of the underground pre-buried cable pipeline (18) in a crawler-like manner within the pipeline.

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