A low voltage cable tensioner

Abstract

The present invention discloses a low-voltage cable tensioner, which belongs to the technical field of electric cable tensioners, and comprises: a driving component, a handle component, a limiting component and two side plates, wherein a connecting plate is fixedly connected between the two side plates, a mounting frame is fixedly connected to the bottom end of the connecting plate, the mounting frame is located between the two side plates, and rotating shafts are arranged on both sides of the mounting frame, and the two rotating shafts can be installed by separating the two side plates with the mounting frame, and traction belts are wound around the outer ends of the two rotating shafts, and the two rotating shafts can be driven at the same time by connecting the two ends of the handle component with the two driving components, so that the two rotating shafts can be rotated at the same time to reel in the traction belts, and the main handle and the auxiliary handle in the handle component are threadedly connected and can be separated, so that the two rotating shafts can be driven separately, and when it is necessary to install a spacer rod between multiple wires, the two wires can be pulled to different positions at the same time, thereby improving the installation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power cable tensioners, and more particularly to a low-voltage cable tensioner. Background Art

[0002] The wire tensioner, also known as the ratchet tensioner, is a tool used to tighten the wire during the construction of overhead line installation. The wire is clamped with a wire clamp and operated by turning a special wrench. Due to the anti-reversal design of the ratchet, as it is turned, the wire rope or galvanized iron wire will gradually wrap around the ratchet drum, thereby tightening the wire. After the wire is tightened, it is fixed to the insulator. After the operation is completed, the ratchet claw of the ratchet is first loosened to loosen the wire rope or galvanized iron wire, then the wire clamp is loosened, and finally the wire rope or galvanized iron wire is removed from the ratchet drum. This process can effectively tighten the wire and ensure the safe and stable laying of the line.

[0003] The Chinese patent publication number CN117673965A discloses an electric wire tensioner, which applies force through the front of a force applying handle, which is located in front of the wire tensioner frame. Therefore, the force applying handle is operated in front of the wire tensioner frame, and the connecting ring slides around the spline rod to adjust the left and right positions of the force applying handle, which makes the wire tensioner operation more convenient compared to the side force application. When force application operations at different angles are required, the connecting sleeve can be separated from the second connecting rod after the docking wrench on the connecting sleeve is removed, and then the spline rod rotates around the connecting sleeve at one end of the first connecting rod, and the first connecting rod rotates around the first universal shaft, so that the spline rod is perpendicular to the first connecting rod, and with the multi-angle transmission of the first universal shaft, force application operations can be performed at different positions, thereby preventing the problem of operation obstruction and making it more convenient to operate and wind up the wire tensioner at different positions.

[0004] When installing spacers or other devices between multiple parallel cables during overhead line laying, workers need to pull two or more parallel cables closer to each other for installation. However, the device in the above scheme can only pull one cable at a time. When multiple cables need to be pulled closer, the operation can only be repeated many times, which is not conducive to improving work efficiency.

[0005] The conductor of the overhead line between two poles is prone to fall downward in the middle due to its own gravity. Therefore, when laying the circuit, one end of the wire needs to be pulled toward the pole to tighten it. Both ends of the above-mentioned tensioner are hooks, which cannot pull the wire horizontally. An external wire pulling pliers is required, and only one wire can be pulled at the same time, which is not conducive to saving time and labor costs.

[0006] Therefore, it is necessary to provide a low-voltage cable tensioner to solve the above problems. Summary of the invention

[0007] The present invention provides a low-voltage cable tensioner, which can improve the problem in the related art that only one wire can be pulled at a time. When multiple wires need to be pulled close, the operation can only be repeated many times, which is not conducive to improving work efficiency. In addition, both ends are hooks, and the wires cannot be pulled horizontally, so an external wire pulling pliers is required. Moreover, only one wire can be pulled at the same time, which is not conducive to saving time and labor costs.

[0008] The embodiment of the present application provides a low-voltage cable tensioner, comprising: a driving assembly, a handle assembly, a limit assembly and two side plates, a connecting plate fixedly connected between the two side plates, a mounting bracket fixedly connected to the bottom end of the connecting plate, the mounting bracket is located between the two side plates, and a rotating shaft is provided on both sides of the mounting bracket, one end of the rotating shaft is rotatably connected to the outer end of the mounting bracket, a traction belt is provided around the outer side of the two rotating shafts, two chucks are fixed to the outer end of the rotating shaft, the traction belt is located between the two chucks, a connecting assembly is provided at the ends of the two traction belts, a hook assembly is provided between the two side plates, a wire clamp assembly and a hook wire assembly are respectively provided at the outer ends of the two connecting assemblies, the connecting assembly comprises a connecting seat, a threaded rod and a connecting block, a fixed shaft is fixedly connected to the inner side of the connecting seat, the threaded rod passes through the connecting seat, and the threaded rod The cam is threadedly connected to the connecting block, and the outer end of the threaded rod is rotatably connected to a mounting seat, and the driving assembly includes a pawl and a ratchet, and the ratchet is fixedly connected to the outer end of the rotating shaft, and the pawl and the ratchet abut against each other, and the pawl drives the ratchet to rotate, and the ratchet drives the rotating shaft to rotate. The handle assembly includes a main handle and a secondary handle, and one end of the main handle and the secondary handle are fixedly connected to a universal joint, and the main handle and the secondary handle respectively drive the two rotating shafts to rotate through two driving assemblies, and the limiting assembly includes a rotating ratchet and a translatory ratchet, and the rotating ratchet and the translatory ratchet are both provided with a plurality of teeth on the side close to each other, and the teeth are arranged in a right-angled triangle, and the rotating ratchet is fixedly mounted on the outer end of the rotating shaft, and the translatory ratchet is rotatably connected to the outer end of the rotating shaft, and the rotating ratchet and the translatory ratchet are clamped by the teeth so that the rotating ratchet can only rotate in one direction.

[0009] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0010] (1) The mounting frame between the two side plates is used to separate the two rotating shafts, and the outer ends of the two rotating shafts are wrapped with traction belts. The two rotating shafts can be driven at the same time by connecting the two ends of the handle assembly with the two drive assemblies, so that the two rotating shafts can rotate at the same time to reel in the traction belts. At the same time, the main handle and the auxiliary handle in the handle assembly are threadedly connected and can be separated, so that the two rotating shafts can be driven separately. When it is necessary to install a spacer rod between multiple wires, the two wires can be pulled to different positions at the same time, thereby improving the installation efficiency.

[0011] (2) A limit stop assembly is installed on the rotating shaft, and the translation ratchet is pushed toward the rotating ratchet by means of a telescopic spring, so that the teeth on the rotating ratchet and the translation ratchet are locked, so that the rotating shaft can only drive the rotating ratchet to rotate in one direction. Both the rotating ratchet and the translation ratchet are installed inside the outer shell. Through the built-in locking mechanism, compared with the external ratchet pawl used in the traditional tensioner lock, it can prevent debris from getting stuck, and at the same time prevent it from rusting, thereby extending its service life.

[0012] (3) A mounting block is fixed on the inner side of the bend of the wire hook, and a hook wire block is fixed on the outer end of the mounting block. When the cable is hooked, the hook wire block contacts the cable sheath, which can increase the contact area with the cable sheath and reduce the pressure on the cable sheath. When the cable is pulled, the damage to the cable sheath can be reduced to prevent the cable sheath from being damaged.

[0013] In some embodiments, the hook assembly includes a cross frame and a hook body, the hook body is detachably connected to the top end of the cross frame, and both sides of the cross frame are respectively installed on the outer ends of the two side panels by bolts.

[0014] In some embodiments, two connecting shafts are fixedly connected between the two side plates, and both connecting shafts pass through the mounting frame. One end of the traction belt is sleeved around one of the connecting shafts, and the other end of the traction belt is fixedly installed on the outer end of the rotating shaft, and the traction belt passes between the fixed shaft and the connecting seat.

[0015] In some embodiments, the wire clamp assembly includes a movable pull rod, an active clamp plate and a driven clamp plate, and friction strips are installed on the side where the active clamp plate and the driven clamp plate are close to each other. The bottom end of the movable pull rod is fixedly connected to two driving rods, and the outer ends of the driving rods are rotatably connected to the active clamp plate and the driven clamp plate respectively.

[0016] In some embodiments, the outer end of the driven splint is fixedly connected to a fixing frame, the movable pull rod passes through the fixing frame, and one end of the movable pull rod is rotatably connected to the mounting seat, and the outer end of the active splint is rotatably connected to a side baffle.

[0017] In some embodiments, the wire hook assembly includes a wire hook, which is arranged in a curved hook shape, a mounting block is fixedly connected to the bending part of the wire hook, a wire hook block is fixedly connected to the outer end of the mounting block, the mounting block and the wire hook block are both arranged in a curved shape, a blocking rod is rotatably connected to the outer end of the wire hook, one end of the blocking rod is abutted against the outer end of the wire hook, and the outer end of the wire hook is rotatably connected to the mounting seat.

[0018] In some embodiments, the driving assembly also includes a rotating shell and a fixed disk, the fixed disk is fixedly mounted on the outer end of the side plate, the outer end of the rotating shell is rotatably connected to the fixed disk, the rotating shaft sequentially passes through the side plate, the fixed disk and the rotating shell, the pawl is rotatably connected to the inner side of the rotating shell, two telescopic springs are arranged between the pawl and the inner wall of the rotating shell, the outer end of the pawl is fixedly connected to the limiting shaft, the outer end of the rotating shell is provided with an arc groove adapted to the movable trajectory of the limiting shaft, the limiting shaft passes through the arc groove, the outer end of the rotating shell is installed with a pin, the outer end of the rotating shell is fixedly connected to a driving handle, and the driving handle is fixedly connected to the universal joint.

[0019] In some embodiments, the limiting assembly also includes an outer shell and a telescopic spring three, the outer shell is fixedly mounted on the outer end of the mounting frame, the telescopic spring three is arranged outside the rotating shaft, and the two ends of the telescopic spring three are respectively fixedly connected to the outer end of the translation ratchet and the inner side of the outer shell.

[0020] In some embodiments, the outer end of the translational ratchet is fixedly connected to a limiting ring, the outer end of the outer shell is provided with two movable grooves adapted to the limiting ring, the two ends of the limiting ring respectively pass through the two movable grooves, the outer end of the limiting ring is fixedly connected to a pull hook, and the outer end of the outer shell is fixedly connected to a limiting buckle adapted to the pull hook.

[0021] In some embodiments, the handle assembly also includes a telescopic block, the interior of the auxiliary handle is hollow, one end of the main handle is fixedly connected to a connecting head, the telescopic block is threadedly connected to the connecting head, the outer end of the telescopic block is rotatably connected to a movable seat, one end of the movable seat is fixedly connected to a slider, the inner side wall of the auxiliary handle is provided with a plurality of sliding grooves adapted to the slider, the slider is slidably connected to the sliding grooves, a telescopic spring is provided inside the auxiliary handle, and both ends of the telescopic spring are respectively fixedly connected to the outer end of the slider and the inner wall of the auxiliary handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A first overall structural diagram provided for an embodiment of the present application;

[0024] Figure 2 A second overall structural diagram provided for an embodiment of the present application;

[0025] Figure 3 A third overall structural diagram provided for an embodiment of the present application;

[0026] Figure 4 A schematic diagram of a partial explosion structure provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of a first partial enlarged structure provided in an embodiment of the present application;

[0028] Figure 6 A second partial enlarged structural schematic diagram provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram of the structure of the drive assembly and the limit assembly provided in the embodiment of the present application;

[0030] Figure 8 A schematic diagram of the exploded structure of a drive assembly provided in an embodiment of the present application;

[0031] Fig. 9 A schematic diagram of the explosion structure of the limit assembly provided in an embodiment of the present application;

[0032] Fig.10 A schematic diagram of the exploded structure of the connection assembly provided in an embodiment of the present application;

[0033] Fig.11 A schematic diagram of the structure of a wire clamp assembly provided in an embodiment of the present application;

[0034] Fig.12 A schematic diagram of the structure of a hook wire assembly provided in an embodiment of the present application;

[0035] Fig.13 A schematic diagram of the exploded structure of the hook-wire assembly provided in an embodiment of the present application;

[0036] Fig.14 A schematic diagram of the structure of a handle assembly provided in an embodiment of the present application;

[0037] Fig.15 A schematic diagram of a cross-sectional structure of a handle assembly provided in an embodiment of the present application;

[0038] Fig.16 A schematic diagram of the hook assembly structure provided in an embodiment of the present application.

[0039] Description of the numbers in the figure:

[0040] 1. Side panels;

[0041] 2. hook assembly; 21. cross frame; 22. hook body;

[0042] 3. Traction belt;

[0043] 4. Connecting assembly; 41. Connecting seat; 42. Fixed shaft; 43. Connecting block; 44. Threaded rod; 45. Mounting seat;

[0044] 5. Wire clamp assembly; 51. Active pull rod; 52. Driving rod; 53. Active clamping plate; 54. Driven clamping plate; 55. Friction strip; 56. Side baffle; 57. Fixed frame;

[0045] 6. Wire hook assembly; 61. Wire hook; 62. Stop rod; 63. Mounting block; 64. Wire hook block;

[0046] 7. Handle assembly; 71. Main handle; 72. Auxiliary handle; 73. Universal joint; 74. Connector; 75. Telescopic block; 76. Movable seat; 77. Sliding block; 78. Telescopic spring 1; 79. Slide;

[0047] 8. Driving assembly; 81. Rotating housing; 82. Ratchet; 83. Fixed plate; 84. Ratchet; 85. Second telescopic spring; 86. Limiting shaft; 87. Driving handle; 88. Latch;

[0048] 9. Limiting assembly; 91. Outer shell; 92. Rotating ratchet; 93. Translational ratchet; 94. Telescopic spring three; 95. Limiting ring; 96. Draw hook; 97. Limiting buckle;

[0049] 10. Connecting plate;

[0050] 11. Chuck;

[0051] 12. Mounting frame;

[0052] 13. Connecting shaft;

[0053] 14. Rotating shaft. DETAILED DESCRIPTION

[0054] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0056] Based on this, the problem in the related technology that only one wire can be pulled at a time can be improved. When multiple wires need to be pulled closer, the operation can only be repeated many times, which is not conducive to improving work efficiency. In addition, there are hooks at both ends, and the wires cannot be pulled horizontally, so an external wire pulling pliers is required. At the same time, only one wire can be pulled at the same time, which is not conducive to saving time and labor costs.

[0057] See also Figure 1-Figure 16 A low-voltage cable tensioner comprises: a driving assembly 8, a handle assembly 7, a limiting assembly 9 and two side plates 1, a connecting plate 10 is fixedly connected between the two side plates 1, a mounting frame 12 is fixedly connected to the bottom end of the connecting plate 10, the mounting frame 12 is located between the two side plates 1, and a rotating shaft 14 is arranged on both sides of the mounting frame 12, one end of the rotating shaft 14 is rotatably connected to the outer end of the mounting frame 12, and a traction belt 3 is arranged outside the two rotating shafts 14, two chucks 11 are fixed to the outer end of the rotating shaft 14, the traction belt 3 is located between the two chucks 11, and a connecting assembly 4 is arranged at the end of the two traction belts 3, a hook assembly 2 is arranged between the two side plates 1, and a wire clamp assembly 5 and a hook wire assembly 6 are respectively arranged at the outer ends of the two connecting assemblies 4, and the connecting assembly 4 comprises a connecting seat 41, a threaded rod 44 and a connecting block 43, a fixed shaft 42 is fixedly connected to the inner side of the connecting seat 41, the threaded rod 44 passes through the connecting seat 41, and the threaded rod 44 and the connecting block 43 are connected The threaded connection is that the outer end of the threaded rod 44 is rotatably connected to the mounting seat 45, the driving assembly 8 includes a pawl 84 and a ratchet 82, the ratchet 82 is fixedly connected to the outer end of the rotating shaft 14, the pawl 84 and the ratchet 82 abut, the pawl 84 drives the ratchet 82 to rotate, and the ratchet 82 drives the rotating shaft 14 to rotate, the handle assembly 7 includes a main handle 71 and a secondary handle 72, one end of the main handle 71 and the secondary handle 72 are fixedly connected to a universal joint 73, and the main handle 71 and the secondary handle 72 are connected through The two driving components 8 respectively drive the two rotating shafts 14 to rotate, and the limiting component 9 includes a rotating ratchet 92 and a translating ratchet 93. The rotating ratchet 92 and the translating ratchet 93 are provided with a plurality of teeth on one side close to each other, and the teeth are arranged in a right-angled triangle. The rotating ratchet 92 is fixedly mounted on the outer end of the rotating shaft 14, and the translating ratchet 93 is rotatably connected to the outer end of the rotating shaft 14. The rotating ratchet 92 and the translating ratchet 93 are engaged with each other through the teeth, so that the rotating ratchet 92 can only rotate in one direction.

[0058] The device in this scheme is mainly used to pull the wires closer to each other during the overhead laying of the line. A connecting plate 10 is fixed between the two side plates 1. The connecting plate 10 is mainly used to connect the two side plates 1. At the same time, a mounting frame 12 is fixed below the connecting plate 10. The mounting frame 12 is mainly used to separate the two sets of winding devices. A rotating shaft 14 is rotatably connected on both sides of the mounting frame 12. The other ends of the two rotating shafts 14 penetrate the side plate 1 and are connected to the ratchet 82. At the same time, a limited position component 9 is installed near the mounting frame 12 at the outer end of the rotating shaft 14. The telescopic spring three 94 pushes the translational ratchet 93 toward the rotating ratchet 92, so that the teeth on the rotating ratchet 92 and the translational ratchet 93 are locked, so that the rotating shaft 14 can only drive the rotating ratchet 92 to rotate in one direction. The rotating ratchet 92 and the translational ratchet 93 are both installed inside the outer shell 91. Since the line laying work is all outdoors, it is often exposed to wind and sun. The built-in locking mechanism can prevent it from being stuck by debris compared to the external ratchet pawl used in the traditional tensioner lock, and it can also prevent it from rusting, thereby extending its service life.

[0059] A hook assembly 2 is also fixed between the two side panels 1. The hook assembly 2 is mainly used to hook the fixed point. A driving assembly 8 is arranged on the outer side of the side panel 1. By rotating the driving assembly 8, the rotating shaft 14 can be driven so that it can reel in the traction belt 3. A handle assembly 7 is arranged between the two driving assemblies 8. By connecting the two ends of the handle assembly 7 with the two driving assemblies 8, the two rotating shafts 14 can be driven at the same time, so that the two rotating shafts 14 can be rotated at the same time to reel in the traction belt 3. At the same time, the main handle 71 and the auxiliary handle 72 in the handle assembly 7 are threadedly connected and can be separated, so that the two rotating shafts 14 can be driven separately. In overhead lines, there are usually multiple lines erected in parallel. At this time, it is necessary to install spacer bars between multiple conductors. The spacer bars are usually cross-shaped or hexagonal, so it is necessary to pull multiple conductors to different positions on the spacer bars for installation. When it is necessary to install spacer bars between multiple conductors, two conductors can be pulled to different positions at one time to improve the installation efficiency.

[0060] A connecting component 4 is provided on both traction belts 3, and the connecting component 4 is mainly used for installing a wire clamp component 5 or a hook wire component 6. The connecting seat 41 is U-shaped, and a fixed shaft 42 is fixed on the inner side. The traction belt 3 passes through between the fixed shaft 42 and the connecting seat 41. When the traction belt 3 is rolled up, it will slide over the fixed shaft 42, thereby pulling the connecting component 4 closer. The threaded rod 44 arranged at the outer end of the connecting seat 41 passes through the connecting seat 41 and is threadedly connected to the connecting block 43, so that it can be detachably connected to the connecting seat 41. The outer side of the threaded rod 44 is rotatably connected with a mounting seat 45. The connecting seat 41 and the fixed shaft 42 are installed on the traction belt 3 and do not need to be removed. The mounting seat 45, the threaded rod 44 and the connecting block 43 follow the wire clamp component 5 or the hook wire component 6, so that the wire clamp component 5 and the hook wire component 6 can be replaced and installed on the connecting seat 41 at any time, so that they can be used in combination according to different needs, thereby improving the flexibility of use.

[0061] Optionally, in some embodiments, see Fig.16 The hook assembly 2 includes a cross frame 21 and a hook body 22. The hook body 22 is detachably connected to the top of the cross frame 21. Both sides of the cross frame 21 are respectively installed on the outer ends of the two side plates 1 by bolts.

[0062] The two sides of the above-mentioned cross frame 21 are fixed to the two side plates 1 by bolts, and the hook body 22 is detachably installed on the cross frame 21. The installation method is similar to that of the connecting component 4. A connecting piece identical to the threaded rod 44 is installed at the bottom of the hook body 22, and is connected by a locking device identical to the connecting block 43, so that the hook body 22 can be removed. It is worth mentioning that after removing the hook body 22, since the structure of the cross frame 21 is the same as that of the connecting seat 41, the wire clamp assembly 5 and the hook wire assembly 6 can also be installed on the cross frame 21 by using the connecting component 4.

[0063] Optionally, in some embodiments, see Figure 4 Two connecting shafts 13 are fixedly connected between the two side plates 1, and the two connecting shafts 13 both pass through the mounting frame 12. One end of the traction belt 3 is sleeved on the outside of one of the connecting shafts 13, and the other end of the traction belt 3 is fixedly installed on the outer end of the rotating shaft 14, and the traction belt 3 passes between the fixed shaft 42 and the connecting seat 41.

[0064] In this solution, two chucks 11 are fixed to the outer end of the rotating shaft 14. The chucks 11 are mainly used to block and limit the traction belt 3 so that it will not deviate when it is rolled up. Two connecting shafts 13 are fixed between the two side plates 1. The connecting shafts 13 pass through the mounting frame 12. One end of the traction belt 3 is installed on one of the connecting shafts 13, and the other end of the traction belt 3 is fixed on the rotating shaft 14. The other connecting shaft 13 is in contact with the outer end of the traction belt 3, which can play a guiding role when the traction belt 3 is rolled up or unrolled.

[0065] Optionally, in some embodiments, see Fig.10 and Fig.11 The wire clamp assembly 5 includes a movable pull rod 51, an active clamp plate 53 and a driven clamp plate 54. The active clamp plate 53 and the driven clamp plate 54 are both installed with friction strips 55 on one side close to each other. The bottom end of the movable pull rod 51 is fixedly connected to two driving rods 52, and the outer ends of the driving rods 52 are rotatably connected to the active clamp plate 53 and the driven clamp plate 54 respectively.

[0066] The outer end of the driven clamping plate 54 is fixedly connected to a fixing frame 57 , the movable pull rod 51 passes through the fixing frame 57 , and one end of the movable pull rod 51 is rotatably connected to the mounting seat 45 , and the outer end of the active clamping plate 53 is rotatably connected to a side baffle 56 .

[0067] The wire clamp assembly 5 in this scheme is installed on the traction belt 3 through the connecting assembly 4. The wire clamp assembly 5 is mainly used to clamp the cable when dragging the cable. The outer ends of the active clamp plate 53 and the driven clamp plate 54 are simultaneously rotatably connected to two driving rods 52, and the two driving rods 52 are fixed to the bottom end of the movable pull rod 51. Friction strips 55 are provided on the active clamp plate 53 and the driven clamp plate 54. The friction strips 55 are used to increase the friction force. A fixing frame 57 is fixed at one end of the driven clamp plate 54. The fixing frame 57 is arranged in a P shape. The movable pull rod 51 passes through the top of the fixing frame 57. The outer end of the active clamp plate 53 is rotatably connected to a side baffle plate 56. The side baffle plate 56 is mainly used for The cable is blocked laterally to prevent it from escaping from between the active clamping plate 53 and the driven clamping plate 54. When in use, the cable is placed between the active clamping plate 53 and the driven clamping plate 54. At this time, when the movable pull rod 51 is pulled by the connecting component 4, since the driving rod 52 is arranged in a bent shape, the movable pull rod 51 will pull the driving rod 52 to tilt, so that it drives the active clamping plate 53 to move downward, so that the active clamping plate 53 can cooperate with the driven clamping plate 54 to clamp the cable. When the pulling force is greater, the active clamping plate 53 will be pressed downward, so that the cable can be tightly clamped. By installing the wire clamp assembly 5 on both connecting components 4, two cables can be dragged at the same time, thereby improving its working efficiency.

[0068] Optionally, in some embodiments, see Fig.12 and Fig.13 The wire hook assembly 6 includes a wire hook 61, which is arranged in a curved hook shape. A mounting block 63 is fixedly connected to the bending part of the wire hook 61, and a wire hook block 64 is fixedly connected to the outer end of the mounting block 63. Both the mounting block 63 and the wire hook block 64 are arranged in a curved shape. A blocking rod 62 is rotatably connected to the outer end of the wire hook 61, and one end of the blocking rod 62 abuts against the outer end of the wire hook 61, and the outer end of the wire hook 61 is rotatably connected to the mounting seat 45.

[0069] The hook wire assembly 6 in this scheme is mainly used to hook the cable. The hook wire assembly 6 is also installed on the traction belt 3 through the connecting assembly 4. A blocking rod 62 is rotatably connected to the outer end of the wire hook 61. The blocking rod 62 is blocked by the end of the wire hook 61 so that it can only rotate toward the wire hook 61, thereby preventing the wire from detaching. A mounting block 63 is fixed to the inner bend of the wire hook 61, and a hook wire block 64 is fixed on the mounting block 63. The hook wire block 64 is made of rubber material. When the cable is hooked, the hook wire block 64 contacts the cable sheath, which can increase the contact area with the cable sheath and reduce the pressure on the cable sheath. When the cable is pulled, the damage to its sheath can be reduced to prevent the cable sheath from being damaged.

[0070] Optionally, in some embodiments, see Figure 6-Figure 8 The driving assembly 8 also includes a rotating shell 81 and a fixed disk 83. The fixed disk 83 is fixedly mounted on the outer end of the side plate 1. The outer end of the rotating shell 81 is rotatably connected to the fixed disk 83. The rotating shaft 14 sequentially penetrates the side plate 1, the fixed disk 83 and the rotating shell 81. The pawl 84 is rotatably connected to the inner side of the rotating shell 81. A telescopic spring 85 is arranged between the pawl 84 and the inner side wall of the rotating shell 81. The outer end of the pawl 84 is fixedly connected to the limit shaft 86. The outer end of the rotating shell 81 is provided with an arc groove adapted to the movable trajectory of the limit shaft 86. The limit shaft 86 penetrates the arc groove. A latch 88 is installed on the outer end of the rotating shell 81. The outer end of the rotating shell 81 is fixedly connected to a driving handle 87, and the driving handle 87 is fixedly connected to the universal joint 73.

[0071] The driving assembly 8 in this scheme is mainly used to drive the rotating shaft 14. The fixed disk 83 is fixed to the outer end of the side plate 1, and the rotating shell 81 is rotatably connected to the outer enclosure of the fixed disk 83. The rotating shaft 14 passes through the side plate 1, the fixed disk 83 and the rotating shell 81 in sequence and is fixedly connected to the ratchet 82. At the same time, a pawl 84 is rotatably connected inside the rotating shell 81. The pawl 84 abuts against the ratchet 82. A telescopic spring 2 85 is arranged between the pawl 84 and the inner wall of the rotating shell 81. The pawl 84 is pushed toward the ratchet 82 by the force of the telescopic spring 2 85 so that they can always keep against each other. A limiting shaft 86 is fixed to the outer end of the pawl 84. The limiting shaft 86 passes through the arc groove opened at the outer end of the rotating shell 81. The curvature of the arc groove is consistent with the limiting To match the trajectory of the movement of the shaft 86, a driving handle 87 is also fixed at the outer end of the rotating shell 81. The driving handle 87 is mainly used to connect with the handle assembly 7. When the handle assembly 7 drives the driving handle 87 to rotate counterclockwise, since the pawl 84 is installed inside the rotating shell 81, the pawl 84 will follow the rotation, and the pawl 84 will be stuck by the ratchet 82 at this time, so the pawl 84 will push the ratchet 82 to rotate, and the ratchet 82 is fixedly connected to the rotating shaft 14, so the rotating shaft 14 will rotate at this time. When the rotating shell 81 rotates in the opposite direction, the pawl 84 will compress the telescopic spring 85 and pass over the ratchet 82 at the same time, and will not drive the ratchet 82, so that it can reciprocate at a certain angle, similar to a ratchet wrench.

[0072] Optionally, in some embodiments, see Figure 7 and Fig. 9 The limiting assembly 9 also includes an outer shell 91 and a telescopic spring 3 94. The outer shell 91 is fixedly mounted on the outer end of the mounting frame 12. The telescopic spring 3 94 is sleeved on the outer periphery of the rotating shaft 14, and the two ends of the telescopic spring 3 94 are respectively fixedly connected to the outer end of the translation ratchet 93 and the inner side of the outer shell 91.

[0073] The outer end of the translation ratchet 93 is fixedly connected to a limit ring 95, and the outer end of the outer shell 91 is provided with two movable grooves adapted to the limit ring 95. The two ends of the limit ring 95 pass through the two movable grooves respectively, and the outer end of the limit ring 95 is fixedly connected to a draw hook 96, and the outer end of the outer shell 91 is fixedly connected to a limit buckle 97 adapted to the draw hook 96.

[0074] When the rotating shaft 14 drives the rotating ratchet 92 to rotate counterclockwise, the teeth on the rotating ratchet 92 will pass over the teeth on the translational ratchet 93, and the translational ratchet 93 will move backward to compress the telescopic spring three 94, and then The telescopic spring three 94 pushes the translation ratchet 93 to make the rotating ratchet 92 and the translation ratchet 93 mesh again, and this reciprocating process allows them to rotate counterclockwise. When it is necessary to unwind the traction belt 3, the rotating shaft 14 needs to be rotated clockwise. Since the translation ratchet 93 is sleeved on the outer end of the rotating shaft 14, the pull hook 96 fixed at the outer end of the limit ring 95 is pulled to make it stuck on the limit buckle 97 fixed at the outer end of the outer shell 91, the limit ring 95 can drive the translation ratchet 93 to move backward, so that it is disengaged from the meshing with the rotating ratchet 92, so that the rotating shaft 14 can rotate clockwise to unwind the traction belt 3. It is worth mentioning that when unwinding, it is also necessary to move the limit shaft 86 along the arc groove on the rotating shell 81, and then use the pin 88 fixed at the outer end of the rotating shell 81 to clamp the limit shaft 86, so that the pawl 84 is disengaged from the abutment with the ratchet 82, so that the ratchet 82 will not drive the rotating shell 81 to rotate at the same time when unwinding.

[0075] Optionally, in some embodiments, see Fig.14 and Fig.15 The handle assembly 7 also includes a telescopic block 75. The interior of the auxiliary handle 72 is hollow. One end of the main handle 71 is fixedly connected to a connecting head 74. The telescopic block 75 is threadedly connected to the connecting head 74. The outer end of the telescopic block 75 is rotatably connected to a movable seat 76. One end of the movable seat 76 is fixedly connected to a slider 77. The inner side wall of the auxiliary handle 72 is provided with a plurality of sliding grooves 79 adapted to the slider 77. The slider 77 is slidably connected to the sliding grooves 79. A telescopic spring 78 is arranged inside the auxiliary handle 72. The two ends of the telescopic spring 78 are respectively fixedly connected to the outer end of the slider 77 and the inner wall of the auxiliary handle 72.

[0076] The main handle 71 and the auxiliary handle 72 in this scheme are connected to the two driving handles 87 through the universal joint 73. The main handle 71 or the auxiliary handle 72 can be rotated through the universal joint 73. When the two driving components 8 are driven separately, the angle can be adjusted. The main handle 71 and the auxiliary handle 72 are mainly installed through the threaded connection of the connecting head 74 and the telescopic block 75. The connecting head 74 is fixed on the main handle 71, and the outer end of the telescopic block 75 is rotatably connected to the movable seat 76. The end of the movable seat 76 is fixedly connected to a slider 77. The slider 77 is slidably connected to the slide groove 79 inside the auxiliary handle 72. At the same time, a telescopic spring 78 arranged inside the auxiliary handle 72 is connected to the slider 77. Through the force of the telescopic spring 78, the slider 77 can be dragged into the auxiliary handle 72 The main handle 71 and the auxiliary handle 72 are both rotated, so if the telescopic block 75 does not retract, when the connecting head 74 is threadedly connected to the telescopic block 75, they will collide with each other and cannot be on the same horizontal line. By pulling the telescopic block 75 outward while rotating it, the telescopic block 75 and the connecting head 74 can be threadedly connected together. When it is necessary to drive the two rotating shafts 14 to rotate at the same time, the main handle 71 and the auxiliary handle 72 can be connected together, and the main handle 71 and the auxiliary handle 72 can be pushed up and down through the unidirectional rotation characteristic of the driving component 8. When it is necessary to drive the two rotating shafts 14 separately, the main handle 71 and the auxiliary handle 72 can be separated so that they can be used according to different needs, thereby improving flexibility.

[0077] Working principle: When using the device, firstly, it is necessary to install the wire clamp assembly 5 or the hook wire assembly 6 on the connecting assembly 4 on the two traction belts 3 according to the needs. The wire clamp assembly 5 is mainly used to clamp the cable when dragging the cable. The outer ends of the active clamp plate 53 and the driven clamp plate 54 are simultaneously rotated and connected to two driving rods 52. The two driving rods 52 are fixed to the bottom end of the movable pull rod 51. When in use, the cable is placed between the active clamp plate 53 and the driven clamp plate 54. At this time, when the movable pull rod 51 is pulled by the connecting assembly 4, since the driving rod 52 is bent, the movable pull rod 51 will pull the driving rod 52 to tilt, so that it drives the active clamp plate 53 to move downward. When the pulling force is greater, the active clamp plate 53 will be pressed downward, so that the cable can be clamped tightly.

[0078] The hook wire assembly 6 is mainly used to hook the cable. A mounting block 63 is fixed at the inner bending part of the wire hook 61. A hook wire block 64 is fixed on the mounting block 63. The hook wire block 64 is made of rubber material. When the cable is hooked, the hook wire block 64 contacts the cable sheath, which can increase the contact area with the cable sheath and reduce the pressure on the cable sheath.

[0079] When the handle assembly 7 drives the driving assembly 8 to rotate, the pawl 84 will be stuck by the ratchet 82, so the pawl 84 will push the ratchet 82 to rotate, and the rotating shaft 14 will rotate. The limit assembly 9 is used in conjunction with the driving assembly 8. When the rotating shaft 14 drives the rotating ratchet 92 to rotate counterclockwise, the teeth on the rotating ratchet 92 will pass over the teeth on the translating ratchet 93, so that the rotating shaft 14 reels in the traction belt 3. After releasing the hand, the rotating ratchet 92 is blocked by the teeth on the translating ratchet 93, so that it can only rotate in one direction. The main handle 71 and the auxiliary handle 72 are threadedly connected. By connecting the two ends of the handle assembly 7 with the two driving assemblies 8, the two rotating shafts 14 can be driven at the same time or separately, and the two wires can be pulled to different positions or the same position at one time, thereby improving the installation efficiency.

[0080] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low voltage cable tensioner, characterized in that: include: Two side plates (1), a connecting plate (10) is fixedly connected between the two side plates (1), a mounting frame (12) is fixedly connected to the bottom end of the connecting plate (10), the mounting frame (12) is located between the two side plates (1), and a rotating shaft (14) is provided on both sides of the mounting frame (12), one end of the rotating shaft (14) is rotatably connected to the outer end of the mounting frame (12), a traction belt (3) is provided outside the two rotating shafts (14), two chucks (11) are fixed to the outer ends of the rotating shafts (14), the traction belt (3) is located between the two chucks (11), and the two traction belts (3) are arranged on the outer sides of the two rotating shafts (14). A connecting assembly (4) is provided at each end of the belt (3); a hook assembly (2) is provided between the two side plates (1); a wire clamp assembly (5) and a wire hook assembly (6) are provided at the outer ends of the two connecting assemblies (4), respectively; the connecting assembly (4) comprises a connecting seat (41), a threaded rod (44) and a connecting block (43); a fixed shaft (42) is fixedly connected to the inner side of the connecting seat (41); the threaded rod (44) passes through the connecting seat (41), and the threaded rod (44) is threadedly connected to the connecting block (43); and the outer end of the threaded rod (44) is rotatably connected to a mounting seat (45); A driving assembly (8), the driving assembly (8) comprising a pawl (84) and a ratchet wheel (82), the ratchet wheel (82) being fixedly connected to the outer end of the rotating shaft (14), the pawl (84) and the ratchet wheel (82) being in contact with each other, the pawl (84) driving the ratchet wheel (82) to rotate, and the ratchet wheel (82) driving the rotating shaft (14) to rotate; A handle assembly (7), the handle assembly (7) comprising a main handle (71) and a secondary handle (72), one end of each of the main handle (71) and the secondary handle (72) being fixedly connected to a universal joint (73), and the main handle (71) and the secondary handle (72) respectively driving two rotating shafts (14) to rotate via two driving assemblies (8); A limit assembly (9), the limit assembly (9) comprising a rotating ratchet (92) and a translatory ratchet (93), the rotating ratchet (92) and the translatory ratchet (93) being provided with a plurality of teeth on one side close to each other, the teeth being arranged in a right triangle, the rotating ratchet (92) being fixedly mounted on the outer end of the rotating shaft (14), the translatory ratchet (93) being rotatably connected to the outer end of the rotating shaft (14), the rotating ratchet (92) and the translatory ratchet (93) being engaged with each other by teeth, so that the rotating ratchet (92) can only rotate in one direction; The wire clamp assembly (5) comprises a movable pull rod (51), an active clamp plate (53) and a driven clamp plate (54); the active clamp plate (53) and the driven clamp plate (54) are both provided with friction strips (55) on one side close to each other; the bottom end of the movable pull rod (51) is fixedly connected to two driving rods (52); the outer ends of the driving rods (52) are rotatably connected to the active clamp plate (53) and the driven clamp plate (54), respectively; The outer end of the driven clamping plate (54) is fixedly connected to a fixing frame (57), the movable pull rod (51) passes through the fixing frame (57), and one end of the movable pull rod (51) is rotatably connected to the mounting seat (45), and the outer end of the active clamping plate (53) is rotatably connected to a side baffle (56); The hook wire assembly (6) comprises a wire hook (61), the wire hook (61) is arranged in a bent hook shape, a mounting block (63) is fixedly connected to the bent portion of the wire hook (61), an outer end of the mounting block (63) is fixedly connected to a wire hook block (64), the mounting block (63) and the wire hook block (64) are both arranged in a bent shape, the outer end of the wire hook (61) is rotatably connected to a blocking rod (62), one end of the blocking rod (62) is in contact with the outer end of the wire hook (61), and the outer end of the wire hook (61) is rotatably connected to the mounting seat (45).

2. A low voltage cable tensioner according to claim 1, characterized in that: The hook assembly (2) comprises a cross frame (21) and a hook body (22); the hook body (22) is detachably connected to the top of the cross frame (21); and two sides of the cross frame (21) are respectively mounted on the outer ends of the two side plates (1) by bolts.

3. A low voltage cable tensioner according to claim 1, characterized in that: Two connecting shafts (13) are fixedly connected between the two side plates (1), and the two connecting shafts (13) both pass through the mounting frame (12). One end of the traction belt (3) is sleeved on the outside of one of the connecting shafts (13), and the other end of the traction belt (3) is fixedly mounted on the outer end of the rotating shaft (14), and the traction belt (3) passes between the fixed shaft (42) and the connecting seat (41).

4. A low voltage cable tensioner according to claim 1, characterized in that: The driving assembly (8) further comprises a rotating housing (81) and a fixed disk (83), wherein the fixed disk (83) is fixedly mounted on the outer end of the side plate (1), the outer end of the rotating housing (81) is rotatably connected to the fixed disk (83), the rotating shaft (14) sequentially passes through the side plate (1), the fixed disk (83) and the rotating housing (81), the ratchet (84) is rotatably connected to the inner side of the rotating housing (81), and the ratchet (84) and the inner side of the rotating housing (81) are connected to each other. A second telescopic spring (85) is arranged between the walls, the outer end of the pawl (84) is fixedly connected to a limit shaft (86), the outer end of the rotating shell (81) is provided with an arc groove adapted to the movable track of the limit shaft (86), the limit shaft (86) passes through the arc groove, the outer end of the rotating shell (81) is installed with a latch (88), the outer end of the rotating shell (81) is fixedly connected to a driving handle (87), and the driving handle (87) is fixedly connected to the universal joint (73).

5. The low voltage cable tensioner according to claim 1, characterized in that: The limit assembly (9) further comprises an outer shell (91) and a telescopic spring (94); the outer shell (91) is fixedly mounted on the outer end of the mounting frame (12); the telescopic spring (94) is sleeved on the outer side of the rotating shaft (14); and the two ends of the telescopic spring (94) are respectively fixedly connected to the outer end of the translation ratchet (93) and the inner side of the outer shell (91).

6. A low voltage cable tensioner according to claim 5, characterized in that: The outer end of the translation ratchet (93) is fixedly connected to a limit ring (95), the outer end of the outer shell (91) is provided with two movable grooves adapted to the limit ring (95), the two ends of the limit ring (95) respectively penetrate the two movable grooves, the outer end of the limit ring (95) is fixedly connected to a draw hook (96), and the outer end of the outer shell (91) is fixedly connected to a limit buckle (97) adapted to the draw hook (96).

7. The low voltage cable tensioner according to claim 1, characterized in that: The handle assembly (7) further comprises a telescopic block (75), the interior of the auxiliary handle (72) is hollow, one end of the main handle (71) is fixedly connected to a connector (74), the telescopic block (75) is threadedly connected to the connector (74), the outer end of the telescopic block (75) is rotatably connected to a movable seat (76), one end of the movable seat (76) is fixedly connected to a slider (77), the inner side wall of the auxiliary handle (72) is provided with a plurality of slide grooves (79) adapted to the slider (77), the slider (77) is slidably connected to the slide grooves (79), a telescopic spring (78) is arranged inside the auxiliary handle (72), and the two ends of the telescopic spring (78) are respectively fixedly connected to the outer end of the slider (77) and the inner wall of the auxiliary handle (72).

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