A constant tension tensioner for overhead conductors

Abstract

The present invention relates to the technical field of power construction tools, specifically a constant tension tightener for overhead wires, comprising a fixed base, a tension bearing frame provided inside the fixed base, a tightening assembly provided inside the fixed base, the tightening assembly comprising a rotating shaft movably arranged on the tension bearing frame, a sprocket provided on the rotating shaft, a chain meshed with the outside of the sprocket, a winding roller movably provided on the other end of the chain, and a wire arrangement assembly provided on the winding roller. The present invention drives a limiting slider to move back and forth on a reciprocating screw rod during the winding process through the provided winding roller. During the entire movement process, the wound steel cable is automatically arranged. At the same time, when the steel cable on the winding roller is about to complete a layer of winding, the first half ring cylinder will be driven inward to shrink, so that the subsequent steel cable is wound on the new winding layer, and the wound steel cable re-forms a winding layer to avoid the wound multiple layers of steel cables from piling up.

Description

Technical Field

[0001] The invention relates to the technical field of electric power construction tools, in particular to an overhead conductor constant tension tightener. Background Art

[0002] The overhead conductor constant tensioner is a key tool in the construction and maintenance of power lines. It is mainly used to accurately control the tension when erecting or replacing conductors, ensuring that the conductors are tightened under constant tension. The overhead conductors are safely erected through cooperation with the traction machine and pulley group.

[0003] For example, an overhead conductor constant tension tensioner with publication number CN214755193U determines the tensioning degree of the entire overhead conductor through a set alarm mechanism. After the conductor is tensioned to an appropriate sag, the set alarm mechanism is triggered to remind the operator that the overhead conductor has been erected, thereby avoiding inconsistent tensioning of multiple conductors.

[0004] However, during the use of the above patent, in the process of tightening the overhead wires by continuously reeling the steel cables, the steel cables cannot be automatically arranged and reeled in the reel, so that the steel cables will pile up in a "mountain" shape on one side of the reel, and eventually the equipment will be stuck. At the same time, the accumulated steel cables will cause friction between the steel cables, destroying the outer galvanized layer or the wire insulation layer, causing surface wear, resulting in permanent deformation of the steel cables under such friction and extrusion, affecting the service life of the entire steel cable. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides an overhead conductor constant tension tensioner, which has the advantage of being able to neatly arrange the wound steel cables. At the same time, during the entire arrangement process, the wound steel cables can avoid overlapping contact between the upper and lower layers, which would cause local concave deformation of the steel cables.

[0006] To achieve the above object, the present invention provides the following technical solution: an overhead conductor constant tension tightener, comprising a fixed base, a tension bearing frame disposed inside the fixed base, and a tightening assembly disposed inside the fixed base;

[0007] The tightening assembly includes a rotating shaft movably arranged on the tension bearing frame, a rotating ratchet is provided on the rotating shaft, an operating handle is movably provided on the rotating shaft, and a swing lock block is provided on the operating handle, a sprocket is provided on the rotating shaft, a chain is meshed with the outside of the sprocket, a winding roller is movably provided on the other end of the chain, and a sprocket is provided on the winding roller to form a meshing transmission with the chain, and a wire arrangement assembly is provided on the winding roller;

[0008] The cable arrangement assembly includes a protective sleeve movably arranged on the tension bearing frame, a reciprocating screw rod movably arranged on the protective sleeve, a conveyor belt is arranged on the reciprocating screw rod near one end of the chain, a limit slider is movably arranged on the reciprocating screw rod, a steel cable is movably arranged inside the limit slider, a first closing assembly is movably arranged inside the protective sleeve, a second closing assembly is movably arranged inside the protective sleeve, and the second closing assembly is nested with the first closing assembly;

[0009] The first closing component includes a square card seat arranged inside the protective sleeve, a retraction plate movably provided at one end of the square card seat away from the protective sleeve, an arc-shaped groove symmetrically provided on the retraction plate, a support splint provided inside the protective sleeve, and the support splint is located on the side of the retraction plate away from the winding roller, a first semi-annular cylinder is symmetrically and movably provided on the support splint, a positioning rod is provided on the side of the first semi-annular cylinder close to the support splint, and the positioning rod is engaged and slidably engaged with the arc-shaped groove and the support splint;

[0010] The second closing component includes a semi-ring limiting plate arranged inside the protective sleeve on a side away from the supporting splint, a rotating disk movably provided on the semi-ring limiting plate, a linear square groove symmetrically provided on the rotating disk, a square guide plate movably provided inside the linear square groove, a second semi-ring cylinder provided on one end of the square guide plate away from the rotating disk, an annular inverted tooth plate movably provided on the side of the rotating disk close to the second semi-ring cylinder, and elastic blocks arranged in an array on the side of the annular inverted tooth plate away from the second semi-ring cylinder;

[0011] By swinging the operating handle, the ratchet and the rotating shaft are driven to rotate. Under the rotation of the rotating shaft, the cooperation between the set sprocket and the chain is driven to rotate the winding roller. At the same time, the reciprocating screw rod is rotated by the conveyor belt. Under the movement of the limit slider set on the reciprocating screw rod, the steel cable is driven to move synchronously so that it is neatly arranged on the winding roller.

[0012] Preferably, a one-way ratchet is arranged in an array on the rotating shaft, a fixed support is arranged in an array inside the fixed base, a rotating block is arranged in a movable array on the fixed support, and the rotating block cooperates with the one-way ratchet, and a meshing group is movably arranged on the side of the fixed support away from the rotating block, and the meshing group consists of an outer gear ring and a rotating gear at the other end of each rotating block.

[0013] Preferably, the tension bearing frame is provided with an array of fixed rods, the fixed rods are movably provided with inlet guide wheels, the internal array of the limiting slider is provided with balls, and the protective sleeve is provided with a matching groove.

[0014] Preferably, a matching shaft hole is opened on the side of the winding roller close to the supporting splint, and a retraction rod is movably arranged in an array on the side of the winding roller close to the matching shaft hole, and a first spring is sleeved on the outside of the retraction rod, and an annular abutment plate is provided on the end of the retraction rod away from the winding roller.

[0015] Preferably, a locking shaft cylinder is provided on the retraction plate, and the locking shaft cylinder and the winding roller are on the same central axis. A fixing plate is provided inside the protective sleeve, and the fixing plate is located on the side of the support splint away from the first semi-annular cylinder.

[0016] Preferably, the fixed plate is symmetrically provided with a sliding rod at one end away from the protective sleeve, the sliding rod is movably provided with a directional push plate at one end away from the fixed plate, the directional push plate is movably provided with a rotating plate at one end away from the engaging shaft cylinder, the rotating plate is movably provided with a Z-shaped extrusion plate at one end away from the directional push plate, and the Z-shaped extrusion plate is engaged and slid inside the matching groove, a second spring is sleeved on the outside of the sliding rod, and a part of the second spring is placed in the cavity of the directional push plate.

[0017] Preferably, a one-way ratchet groove is provided through the rotating disk, and the one-way ratchet groove and the elastic block are engaged and slidable, and a matching reverse gear plate is movably provided on the side of the first semi-annular cylinder close to the rotating disk.

[0018] Preferably, an L-shaped baffle is provided on one end of the mating inverse gear plate away from the rotating disk, and a pulling handle is provided on the protective sleeve.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention drives the limit slider to move back and forth on the reciprocating screw rod during the winding process by means of the winding roller. During the entire movement process, the wound steel cable is automatically arranged. At the same time, in order to prevent the steel cable from entering the winding roller at an excessively large angle, which may cause irregular winding of the steel cable, the entrance guide wheel is used to guide the steel cable and adjust the overall angle of the steel cable. The ball bearings provided inside the limit slider can reduce the friction between the steel cable and the limit slider, thereby reducing the degree of wear caused by the contact between the surface of the steel cable and the limit slider during the winding process.

[0021] 2. At the same time, when the steel cable on the winding roller is about to complete a layer of winding, the first half ring drum will be driven to shrink inward, so that the subsequent steel cable will be wound on the new winding layer. The wound steel cable will form a new winding layer to avoid the stacking of multiple layers of wound steel cables, which will cause friction and extrusion between the steel cables, causing permanent deformation of the steel cables and affecting the service life of the entire steel cable. After the first half ring drum is shrunk and spliced, the overall outer diameter is much larger than the winding roller, so that the overall bending degree of the steel cable will be reduced, further reducing the possibility of breakage caused by excessive bending of the steel cable.

[0022] 3. The two first half-ring cylinders and the two second half-ring cylinders that are set at the same time can protect the steel cable rolled up inside after being spliced and closed. When the rolled-up steel cable breaks due to excessive pulling force, the rolled-up part of the steel cable can rebound and cause a whipping effect. In this way, the whipping steel cable can be intercepted in the closed environment of the spliced first half-ring cylinder and the second half-ring cylinder to avoid the steel cable directly hitting the operator when the whipping effect occurs, causing injury to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of the device of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall back structure of the device of the present invention.

[0025] Figure 3 It is a schematic diagram of the half-section structure of the device of the present invention.

[0026] Figure 4 It is a schematic diagram of the overall explosion structure of the device of the present invention.

[0027] Figure 5 It is a schematic diagram of the local structure of the rotating shaft and the protective sleeve of the device of the present invention.

[0028] Figure 6 It is a schematic diagram of the partial structure of the cable assembly of the device of the present invention.

[0029] Figure 7 This is a schematic diagram of the partial explosion structure of the first closing component of the device of the present invention.

[0030] Figure 8 The device of the present invention Figure 4 A partial enlarged schematic diagram of point A in the middle.

[0031] Figure 9 The device of the present invention Figure 4 A partial enlarged schematic diagram of point B in the middle.

[0032] Figure 10 This is a schematic diagram of the partial explosion structure of the first closing component of the device of the present invention.

[0033] Figure 11 The device of the present invention Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0034] Figure 12 The device of the present invention Figure 7 A partial enlarged schematic diagram of point D in the middle.

[0035] Figure 13 This is a schematic diagram of the overall placement structure of the first half ring cylinder and the second half ring cylinder inside the protective sleeve of the device of the present invention.

[0036] Figure 14 This is a schematic diagram of the explosion of the internal structure of the protective sleeve of the device of the present invention.

[0037] Figure 15 This is a schematic diagram of the partial explosion structure of the second closing component of the device of the present invention.

[0038] In the figure: 1. Fixed base; 11. Fixed support; 2. Tension bearing frame; 21. Fixed rod; 22. Inlet guide wheel; 3. Tightening assembly; 31. Rotating shaft; 311. One-way ratchet; 312. Rotating block; 313. Engaging group; 32. Rotating ratchet; 33. Operating handle; 34. Sprocket; 35. Chain; 36. Winding roller; 361. Matching shaft hole; 362. Retraction rod; 363. First spring; 364. Annular abutment plate; 4. Cable assembly; 41. Protective sleeve; 411. Matching groove; 412. Fixed plate; 413. Sliding rod; 414. Directional push plate; 415. Rotating plate; 416. Z shaped extrusion plate; 417, second spring; 418, pull handle; 42, reciprocating screw; 43, conveyor belt; 44, limit slider; 5, steel cable; 6, first closing component; 61, square holder; 62, retraction plate; 621, arc groove; 622, engaging shaft cylinder; 63, supporting splint; 64, first semi-annular cylinder; 641, matching reverse gear plate; 642, L-shaped baffle; 65, positioning rod; 7, second closing component; 71, semi-annular limit plate; 72, rotating disk; 721, straight square groove; 722, one-way ratchet groove; 73, square guide plate; 74, second semi-annular cylinder; 75, annular reverse gear plate; 76, elastic block. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0040] See also Figures 1 to 9, which is the first embodiment of the present invention, provides a technical solution: an overhead conductor constant tension tightener, comprising a fixed base 1, the fixed base 1 is used to provide stability and disperse the force of the entire device, a tension bearing frame 2 is provided inside the fixed base 1, the tension bearing frame 2 fixes the entire tightener to a pole or a temporary anchor point via a hook provided at one end, and is used to withstand the reaction force from the conductor tension, a tightening assembly 3 is provided inside the fixed base 1, the tightening assembly 3 is used to reel in a steel cable 5, and by continuously reeling in the steel cable 5, one end of the steel cable 5 is tightened to the overhead conductor installed with a clamp through the hook, so that the overall sag of the overhead conductor reaches a suitable angle;

[0041] The tightening assembly 3 includes a rotating shaft 31 movably arranged on the tension bearing frame 2, and a rotating ratchet 32 is provided on the rotating shaft 31. The rotating ratchet 32 is located at the center of the rotating shaft 31. At the same time, the rotating ratchet 32 is fixedly connected to the rotating shaft 31, and the rotating ratchet 32 is supported by the rotating shaft 31. The operating handle 33 installed on the rotating shaft 31 is swung by the operator, so that the swing lock block provided on the operating handle 33 pushes the rotating ratchet 32 to start rotating. The rotation of the rotating ratchet 32 drives the entire rotating shaft 31 to rotate. An operating handle 33 is movably provided on the rotating shaft 31, and a swing lock block is provided on the operating handle 33. The operating handle 33 is engaged and rotated with the rotating shaft 31. When the operating handle 33 is swung counterclockwise, the swing lock block will drive the rotating ratchet 32 to start rotating. The wheel 32 rotates, and when the operating handle 33 returns to its original position, the swing lock block will swing and no longer apply pressure to the entire rotating ratchet 32, preventing the rotating ratchet 32 from being driven back to its original position under the action of the swing lock block. A sprocket 34 is provided on the rotating shaft 31, and a chain 35 is provided on the outside of the sprocket 34. The chain 35 is used to transmit the rotation of the rotating shaft 31. A sprocket 34 is also matched with the other end of the chain 35. The sprocket 34 is mounted on the winding roller 36. The other end of the chain 35 is movably provided with a winding roller 36, and a sprocket 34 is provided on the winding roller 36 to form a meshing transmission with the chain 35. The winding roller 36 is used to reel in the steel cable 5, so that the steel cable 5 can be continuously reeled in when the operator operates the entire operating handle 33. The winding roller 36 is provided with a cable arrangement assembly 4;

[0042] The cable arrangement assembly 4 includes a protective sleeve 41 movably arranged on the tension bearing frame 2. The protective sleeve 41 is an open C-shaped structure as a whole, which is used to facilitate daily maintenance. The operator can observe the winding state of the steel cable 5 inside the entire protective sleeve 41, which is convenient for maintenance. A reciprocating screw rod 42 is movably arranged on the protective sleeve 41. The reciprocating screw rod 42 is used to set a limit slider 44 thereon to limit the set steel cable 5, so that when the winding roller 36 rewinds the steel cable 5, the reciprocating screw rod 42 will rotate synchronously under the drive of the conveyor belt 43, so that when the reciprocating screw rod 42 rotates, the set limit slider 44 will reciprocate. During the entire reciprocating movement, the wound steel cable 5 is neatly arranged. A conveyor belt 43 is provided on the reciprocating screw rod 42 near one end of the chain 35. The conveyor belt 43 is used to move the winding roller 36 The rotational force of 6 is synchronously transmitted to the reciprocating screw rod 42, so that the reciprocating screw rod 42 rotates, thereby driving the limit slider 44 to reciprocate on the reciprocating screw rod 42. A limit slider 44 is movably provided on the reciprocating screw rod 42, and the center of the limit slider 44 has a through opening. By passing the steel cable 5 through the center opening of the limit slider 44, when the limit slider 44 is displaced, the steel cable 5 can be driven to move synchronously, so that the wound steel cable 5 can be neatly arranged on the winding roller 36. A steel cable 5 is movably provided inside the limit slider 44, and one end of the steel cable 5 and the winding roller 36 cooperate with the tapered groove of the winding drum through the wedge-shaped metal block. After the steel cable 5 passes through the clamp, the wedge block becomes tighter and tighter under the action of tension, realizing self-locking. A hook is provided at the end of the steel cable 5 away from the winding roller 36, and the connection to the overhead wire is realized through the hook.

[0043] By swinging the operating handle 33, the ratchet 32 and the rotating shaft 31 are driven to rotate. Under the rotation of the rotating shaft 31, the cooperation between the set sprocket 34 and the chain 35 is driven to rotate the winding roller 36. At the same time, the reciprocating screw rod 42 is rotated by the conveyor belt 43. Under the movement of the limit slider 44 set on the reciprocating screw rod 42, the steel cable 5 is driven to move synchronously so that it is neatly arranged on the winding roller 36.

[0044] The cam 312 is actuated to move the cam 314 in a direction of rotation so that the cam 314 can be rotated in one direction by the cam 312 when the cam 314 is in a state of rotation and the cam 314 is in a state of rotation when the cam 314 is in a state of rotation and the cam 314 is in a state of rotation when the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of rotation and the cam 314 is in a state of The cam 312 is engaged with the first gear 313 and the second gear 314 is engaged with the first gear 313 by the spring 314, and the cam 312 is engaged with the first gear 313 by the spring 314. When the cam 312 is engaged with the first gear 313, the cam 312 is engaged with the first gear 313 and the second gear 314 is engaged with the first gear 313 by the spring 314.

[0045] The tension bearing frame 2 is provided with a fixed rod 21 in an array. The fixed rod 21 is fixed with the tension bearing frame 2, and the sliding effect formed between the entrance guide wheel 22 and the fixed rod 21 allows the steel cable 5 to adjust its overall angle before entering the winding roller 36 to ensure that the steel cable 5 enters in a tangential direction. An entrance guide wheel 22 is movably provided on the fixed rod 21. The entrance guide wheel 22 is used to guide the steel cable 5 during the winding process. Balls are provided in the internal array of the limit slider 44. The balls are used to reduce the friction formed between the steel cable 5 and the limit slider 44 during the winding process. A matching groove 411 is provided on the protective sleeve 41. The matching groove 411 is used to facilitate the steel cable 5 to enter the interior of the protective sleeve 41. At the same time, the matching groove 411 can control the overall movement of the limit slider 44. Limiting is performed to prevent the limiting slider 44 from rotating under the drive of the reciprocating screw rod 42, which affects the winding of the steel cable 5. A first closing component 6 is movably provided inside the protective sleeve 41. The first closing component 6 is used to automatically close after the winding roller 36 has wound up a layer of steel cable 5, so that the subsequent steel cable 5 enters the outside of the closed first semi-annular cylinder 64, to prevent the subsequent steel cable 5 from being superimposed on the steel cable 5 on the winding roller 36, causing the lower layer of steel cable 5 to be squeezed and deformed. A second closing component 7 is movably provided inside the protective sleeve 41, and the second closing component 7 is nested with the first closing component 6. The second closing component 7 can be driven to form a third winding layer after the first closing component 6 has wound up the steel cable 5, thereby increasing the winding length of the entire steel cable 5.

[0046] The first closing component 6 includes a square card seat 61 arranged inside the protective sleeve 41. One end of the square card seat 61 is fixedly connected to the protective sleeve 41, and the other end is rotatably connected to the retraction plate 62, so that when the retraction plate 62 rotates, it will not drive the square card seat 61 to rotate. At the same time, the square card seat 61 can also limit the retraction plate 62 as a whole to avoid displacement of the retraction plate 62 when rotating. The square card seat 61 is movably provided with a retraction plate 62 at one end away from the protective sleeve 41. The arc groove 621 is provided. Through the cooperation between the arc groove 621 and the positioning rod 65 provided on the first semi-annular cylinder 64, when the contraction plate 62 rotates, the two first semi-annular cylinders 64 can be driven to contract until they are spliced together to form a new winding layer, so that the subsequently wound steel cable 5 is placed on the outer surface of the first semi-annular cylinder 64. The arc groove 621 is symmetrically provided on the contraction plate 62. A supporting splint 63 is provided inside the protective sleeve 41, and the supporting splint 63 is located on the side of the contraction plate 62 away from the winding roller 36. The support splint 63 is provided with a guide groove on one side of the contraction plate 62, and the movement of the positioning rod 65 is limited by the guide groove, so that the positioning rod 65 can limit the movement of the first semi-ring cylinder 64 under the overall limit of the arc groove 621 on the contraction plate 62 and the support splint 63 during the entire movement process. The first semi-ring cylinder 64 is symmetrically arranged on the support splint 63, and one end of the two first semi-ring cylinders 64 is provided with an entry hole for the steel cable 5 to enter the upper layer, so that the first semi-ring cylinder 64 is contracted inwardly to form a When a new winding layer is formed, the steel cable 5 can enter the upper layer through the opened entry hole. A positioning rod 65 is provided on the first semi-annular tube 64 near the side of the supporting splint 63, and the positioning rod 65 is engaged and slid with the arc groove 621 and the supporting splint 63. The positioning rod 65 provided on the first semi-annular tube 64 can limit the entire positioning rod 65 in the initial state under the action of the arc groove 621 and the guide groove on the supporting splint 63, while preventing the first semi-annular tube 64 at the upper end from falling in the initial state.

[0047] A matching shaft hole 361 is provided on the side of the winding roller 36 near the supporting splint 63. The matching shaft hole 361 is used to cooperate with the engaging shaft cylinder 622 provided on the contraction plate 62. The matching shaft hole 361 is a combination of a through hole and a engaging column. When the engaging shaft cylinder 622 is driven to engage into the matching shaft hole 361, the contraction plate 62 is rotated under the drive of the engaging shaft cylinder 622. The rotating contraction plate 62 drives the first semi-annular cylinder 64 to contract inwardly to form a new winding layer. A contraction rod is movably provided on the side of the winding roller 36 near the matching shaft hole 361. 362, and a first spring 363 is provided on the outside of the retraction rod 362, and a cavity is opened at the retraction rod 362 of the winding roller 36, so that the retraction rod 362 can engage and slide in the cavity to prevent the entire retraction rod 362 from affecting the movement of the retraction plate 62, and an annular abutment plate 364 is provided at the end of the retraction rod 362 away from the winding roller 36, and the annular abutment plate 364 is used to abut against one side of the retraction plate 62, so that the retraction plate 62 can be pushed to reset by the first spring 363 when there is no external force on the retraction plate 62, thereby disengaging the engaging shaft cylinder 622 from the matching shaft hole 361.

[0048] When the cam 314 is in the closed position, the cam 316 is in the closed position, and the cam 317 is in the closed position, so that the cam 316 can be turned in the open position, and the cam 318 is turned in the closed position, so that the cam 316 can be turned in the open position, and the cam 318 can be turned in the open position, so that the cam 316 can be turned in the open position, and the cam 318 can be turned in the open position, so that the cam 316 can be turned in the open position, The Z-shaped extrusion plate 416 provided on the cylinder 41 drives the first closing component 6 to start closing through the Z-shaped extrusion plate 416, thereby forming a new winding layer, so that the subsequent steel cables 5 are wound in the new winding layer, thereby avoiding the overlap between the steel cables 5 causing the overall deformation of the steel cables 5. At the same time, the closed first closing component 6 can protect the wound steel cables 5. When the steel cables 5 on the first closing component 6 are fully wound, the second closing component 7 will be automatically started, thereby forming a new winding layer, so that the steel cables 5 can be wound in each layer without causing squeezing and deformation between the steel cables 5. At the same time, by wrapping, it can be avoided that when the pressure of the wound steel cables 5 is too high, the steel cables 5 in the winding roller 36 section will not break, causing a whipping effect and injuring the operator. After the entire overhead wire is tightened and fixed, the limit of the rotating block 312 on the one-way ratchet 311 is released, which facilitates the pulling out of the steel cables 5 and resets the entire device. Example 2

[0049] See also Figures 1 to 13 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that:

[0050] The shrinking plate 62 is provided with a locking shaft cylinder 622, and the locking shaft cylinder 622 and the winding roller 36 are on the same central axis. The locking shaft cylinder 622 is provided with an array of open perforations on the side close to the matching shaft hole 361. At the same time, the entire locking shaft cylinder 622 passes through both sides of the shrinking plate 62, and contacts the directional push plate 414 at the end of the locking shaft cylinder 622 away from the matching shaft hole 361. The directional push plate 414 pushes the locking shaft cylinder 622 and the shrinking plate 62 toward the winding roller 36, and finally forms a locking state. The rotation of the winding roller 36 drives the two first half-ring cylinders 64 to rotate. A fixed plate 412 is provided inside the protective sleeve 41, and the fixed plate 412 is on the side of the support splint 63 away from the first half-ring cylinder 64.

[0051] The fixed plate 412 is symmetrically provided with a sliding rod 413 at one end away from the protective sleeve 41, and a directional push plate 414 is movably provided at one end of the sliding rod 413 away from the fixed plate 412. The directional push plate 414 is a straight plate combined with a square plate, wherein the square plate is a hollow square plate, and the side close to the engaging shaft cylinder 622 is a curved surface. Through the lateral movement of the directional push plate 414, when the engaging shaft cylinder 622 contacts the curved surface of the directional push plate 414, the engaging shaft cylinder 622 is pushed toward The winding roller 36 moves so that the engaging shaft cylinder 622 can form an engaging relationship with the matching shaft hole 361 on the winding roller 36, and the directional push plate 414 is movably provided with a rotating plate 415 at one end away from the engaging shaft cylinder 622, and the rotating plate 415 is movably provided with a Z-shaped extrusion plate 416 at one end away from the directional push plate 414, and the Z-shaped extrusion plate 416 is engaged and slid inside the matching groove 411, and the entire Z-shaped extrusion plate 416 and the rotating plate 415 connection section are provided with an initial connection with the rotating plate 415 The second spring 417 is used to drive the directional push plate 414 and the Z-shaped extrusion plate 416 to reset after the Z-shaped extrusion plate 416 is no longer squeezed by the steel cable 5 and the limit slider 44.

[0052] During use, after the Z-shaped extrusion plate 416 is squeezed, the Z-shaped extrusion plate 416 will drive the rotating plate 415 to start rotating. During the rotation of the rotating plate 415, the directional push plate 414 is pushed to move, so that the engaging shaft cylinder 622 set on the contraction plate 62 is inserted into the inside of the matching shaft hole 361, so that the contraction plate 62 can rotate with the winding roller 36. Under the rotation of the contraction plate 62, the two first half-ring cylinders 64 set are contracted inwardly, so that the subsequent steel cable 5 passes through the entrance opening opened on the first half-ring cylinder 64 to reach the new winding layer, thereby avoiding In order to avoid overlap between the steel cables 5, which causes wear of the steel cables 5 and affects the overall service life of the steel cables 5, after the limit slider 44 and the steel cables 5 gradually break away from the contact with the Z-shaped extrusion plate 416, the directional push plate 414 will be reset under the action of the second spring 417. Since the first half-annular cylinder 64 is wrapped by the steel cables 5, the first half-annular cylinder 64 will not be reset. When the entire steel cable 5 wrapped around the outside of the first half-annular cylinder 64 is pulled out, the first half-annular cylinder 64 will be reset under the elastic force of the first spring 363 set on one side of the annular support plate 364.

[0053] The remaining structures are the same as those of Example 1. Example 3

[0054] See also Figures 1 to 15 , which is the third embodiment of the present invention. This embodiment is different from the first and second embodiments in that:

[0055] The second closing assembly 7 includes a semi-ring limiting plate 71 arranged inside the protective sleeve 41 on the side away from the supporting splint 63. A rotating disk 72 is movably provided on the semi-ring limiting plate 71. The rotating disk 72 and the semi-ring limiting plate 71 are in a snap-fitting and sliding relationship. The semi-ring limiting plate 71 prevents the rotating disk 72 from swinging under the overall limiting effect. The rotating disk 72 is symmetrically provided with a straight square groove 721, and a square guide plate 73 is movably provided inside the straight square groove 721. A second semi-annular cylinder 74 is provided at one end of the square guide plate 73 away from the rotating disk 72. The second semi-annular cylinder 74 is in a nested relationship with the first semi-annular cylinder 64. The central axis of the two groups of semi-annular cylinders after splicing is the central axis of the winding roller 36. The second semi-annular cylinder 74 is engaged with the straight square groove 721 of the rotating disk 72 through the square guide plate 73. The two second semi-annular cylinders 74 are driven to rotate by the rotation of the rotating disk 72. An annular inverse gear plate 75 is movably provided on the side of the rotating disk 72 close to the second semi-annular cylinder 74. The annular inverse gear plate 75 and the second semi-annular cylinder 74 are in an engaged rotational relationship. The annular inverse tooth plate 75 is in engagement with the mating inverse tooth plate 641 provided on the first semi-annular cylinder 64, so that the two second semi-annular cylinders 74 will be driven to rotate under the rotation of the mating inverse tooth plate 641. The annular inverse tooth plate 75 is provided with an array of elastic blocks 76 on the side away from the second semi-annular cylinder 74. The elastic blocks 76 are used to form an engaging rotation with the one-way ratchet groove 722 opened in the center of the rotating disk 72, so that when the mating inverse tooth plate 641 enters the interior of the annular inverse tooth plate 75, the entire annular inverse tooth plate 75 will perform a unidirectional movement, so that the engagement formed by the entire mating inverse tooth plate 641 will not be obstructed, and at the same time, the movement of the annular inverse tooth plate 75 will not affect the rotating disk 72.

[0056] The rotating disk 72 is provided with a one-way ratchet groove 722, and the one-way ratchet groove 722 is engaged and slidably engaged with the elastic block 76. The one-way ratchet groove 722 is used to limit the entire rotation direction of the rotating disk 72, and at the same time, the rotation force of the annular inverted tooth plate 75 is transmitted to the rotating disk 72, thereby driving the second half-ring cylinder 74 to rotate through the rotation of the rotating disk 72. Under the rotation of the second half-ring cylinder 74, the wound steel cable 5 will enter the outside of the second half-ring cylinder 74 through the entry hole opened on the second half-ring cylinder 74, and continuously During the winding process, the two second half-ring cylinders 74 shrink and are spliced into a whole. A matching reverse tooth plate 641 is movably provided on the side of the first half-ring cylinder 64 close to the rotating disk 72. The matching reverse tooth plate 641 is locked with the first half-ring cylinder 64 through a plug-in square rod. The square shape of the rod body ensures that the matching reverse tooth plate 641 will only move horizontally and will not rotate at will. At the same time, a spring is installed in the inner section of the plug-in square rod in the first half-ring cylinder 64, and the spring provides elastic force to reset the entire matching reverse tooth plate 641.

[0057] An L-shaped baffle 642 is provided at the end of the matching reverse tooth plate 641 away from the rotating disk 72. The L-shaped baffle 642 is used to push the steel cable 5 on the first semi-annular cylinder 64 to move during the winding process. Under the movement of the L-shaped baffle 642, the matching reverse tooth plate 641 and the annular reverse tooth plate 75 are engaged with each other. A pulling handle 418 is provided on the protective sleeve 41. The two sides of the pulling handle 418 form a plug-in relationship with the grooves of the tension bearing frame 2. At the same time, after the plug-in is completed, it is tightened and fixed by bolts to fix the entire protective sleeve 41 to prevent the protective sleeve 41 from falling off from the inside of the fixed base 1 during the tightening process of the operator.

[0058] When the steel cable 5 on the first half-annular cylinder 64 is about to be wound up, the L-shaped baffle 642 will be pushed to move its position, so that the matching inverse tooth plate 641 will gradually approach the annular inverse tooth plate 75, and finally form a tooth-meshing state with the annular inverse tooth plate 75. After the engagement is completed, the rotation of the first half-annular cylinder 64 will drive the rotating disk 72 to start rotating, and at the same time, the rotating disk 72 will drive the second half-annular cylinder 74 to rotate synchronously. Under the rotation of the second half-annular cylinder 74, the steel cable 5 will enter the outside of the second half-annular cylinder 74 to form a new winding layer. As the steel cable 5 is continuously wound up, the second half-annular cylinder 74 will eventually be spliced together. During the whole process, the wound steel cable 5 can be ensured not to be squeezed by the steel cable 5 of other sections.

[0059] The remaining structures are the same as those of Examples 1 and 2.

[0060] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An overhead conductor constant tensioner, comprising a fixed base (1), characterized in that: A tension bearing frame (2) is provided inside the fixed base (1), and a tightening assembly (3) is provided inside the fixed base (1); The tightening assembly (3) includes a rotating shaft (31) movably arranged on the tension bearing frame (2), a rotating ratchet (32) is arranged on the rotating shaft (31), an operating handle (33) is movably arranged on the rotating shaft (31), and a swing lock block is arranged on the operating handle (33), a sprocket (34) is arranged on the rotating shaft (31), a chain (35) is arranged on the outside of the sprocket (34), a winding roller (36) is movably arranged at the other end of the chain (35), and a sprocket (34) is arranged on the winding roller (36) to form a meshing transmission with the chain (35), and a wire arrangement assembly (4) is arranged on the winding roller (36); The cable arrangement assembly (4) includes a protective sleeve (41) movably arranged on the tension bearing frame (2), a reciprocating screw (42) movably arranged on the protective sleeve (41), a conveying belt (43) arranged on one end of the reciprocating screw (42) close to the chain (35), a limiting slider (44) movably arranged on the reciprocating screw (42), a steel cable (5) movably arranged inside the limiting slider (44), a first closing assembly (6) movably arranged inside the protective sleeve (41), a second closing assembly (7) movably arranged inside the protective sleeve (41), and the second closing assembly (7) and the first closing assembly (6) are in a nested relationship; The first closing component (6) includes a square card seat (61) arranged inside the protective sleeve (41), a retractable plate (62) is movably provided at one end of the square card seat (61) away from the protective sleeve (41), and an arc groove (621) is symmetrically provided on the retractable plate (62), a supporting splint (63) is provided inside the protective sleeve (41), and the supporting splint (63) is located on the side of the retractable plate (62) away from the winding roller (36), a first semi-annular cylinder (64) is symmetrically movably provided on the supporting splint (63), a positioning rod (65) is provided on the side of the first semi-annular cylinder (64) close to the supporting splint (63), and the positioning rod (65) is engaged and slidably with the arc groove (621) and the supporting splint (63); The second closing component (7) comprises a semi-ring limiting plate (71) arranged inside the protective sleeve (41) on a side away from the supporting splint (63); a rotating disk (72) is movably provided on the semi-ring limiting plate (71); a linear square groove (721) is symmetrically provided on the rotating disk (72); a square guide plate (73) is movably provided inside the linear square groove (721); a second semi-ring cylinder (74) is provided on one end of the square guide plate (73) away from the rotating disk (72); an annular reverse tooth plate (75) is movably provided on a side of the rotating disk (72) close to the second semi-ring cylinder (74); and elastic blocks (76) are arranged in an array on a side of the annular reverse tooth plate (75) away from the second semi-ring cylinder (74); By swinging the operating handle (33), the ratchet wheel (32) and the rotating shaft (31) are driven to rotate. When the rotating shaft (31) rotates, the sprocket (34) and the chain (35) are coordinated to drive the winding roller (36) to rotate. At the same time, the reciprocating screw rod (42) is rotated by the conveying belt (43). When the limit slider (44) provided on the reciprocating screw rod (42) moves, the steel cable (5) is driven to move synchronously so that the steel cable (5) is neatly arranged on the winding roller (36).

2. The overhead conductor constant tensioner according to claim 1, characterized in that: The rotating shaft (31) is provided with a one-way ratchet (311) in an array, the fixed base (1) is provided with a fixed support (11) in an array, the fixed support (11) is provided with a rotating block (312) in a movable array, and the rotating block (312) and the one-way ratchet (311) are matched, and the fixed support (11) is provided with a meshing group (313) on a side away from the rotating block (312), and the meshing group (313) is composed of an outer tooth ring and a rotating gear at the other end of each rotating block (312).

3. The overhead conductor constant tensioner according to claim 1, characterized in that: The tension bearing frame (2) is provided with a fixed rod (21) in an array, the fixed rod (21) is movably provided with an inlet guide wheel (22), the limiting slider (44) is provided with a ball array inside, and the protective sleeve (41) is provided with a matching groove (411).

4. The overhead conductor constant tensioner according to claim 1, characterized in that: A matching shaft hole (361) is provided on one side of the winding roller (36) close to the supporting splint (63), and a retracting rod (362) is movably arranged in an array on one side of the winding roller (36) close to the matching shaft hole (361), and a first spring (363) is sleeved on the outside of the retracting rod (362), and an annular abutment plate (364) is provided on one end of the retracting rod (362) away from the winding roller (36).

5. The overhead conductor constant tensioner according to claim 1, characterized in that: The shrinking plate (62) is provided with a locking shaft cylinder (622), and the locking shaft cylinder (622) and the winding roller (36) are located on the same central axis. The protective sleeve (41) is provided with a fixing plate (412) inside, and the fixing plate (412) is located on the side of the supporting splint (63) away from the first semi-annular cylinder (64).

6. The overhead conductor constant tensioner according to claim 5, characterized in that: The fixed plate (412) is symmetrically provided with a sliding rod (413) at one end away from the protective sleeve (41), and the sliding rod (413) is movably provided with a directional push plate (414) at one end away from the fixed plate (412). The directional push plate (414) is movably provided with a rotating plate (415) at one end away from the engaging shaft cylinder (622). The rotating plate (415) is movably provided with a Z-shaped extrusion plate (416) at one end away from the directional push plate (414), and the Z-shaped extrusion plate (416) is engaged and slid inside the matching groove (411). The sliding rod (413) is externally sleeved with a second spring (417), and a portion of the second spring (417) is placed in the cavity of the directional push plate (414).

7. The overhead conductor constant tensioner according to claim 1, characterized in that: A one-way ratchet groove (722) is provided through the rotating disk (72), and the one-way ratchet groove (722) and the elastic block (76) are engaged and slidable. A matching reverse tooth plate (641) is movably provided on one side of the first semi-annular cylinder (64) close to the rotating disk (72).

8. The overhead conductor constant tensioner according to claim 7, characterized in that: An L-shaped baffle (642) is provided at one end of the mating inverse tooth plate (641) away from the rotating disk (72), and a pulling handle (418) is provided on the protective sleeve (41).

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