CN115102097A

CN115102097A - Cable tightening device for cable construction

Info

Publication number: CN115102097A
Application number: CN202211028862.6A
Authority: CN
Inventors: 万传国
Original assignee: Xinghua Yongan Power Tools Co ltd
Current assignee: Xinghua Yongan Power Tools Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-09-23
Anticipated expiration: 2042-08-26
Also published as: CN115102097B

Abstract

The invention relates to the technical field of cable erection equipment and discloses a cable tightening device for cable construction. This tensioner bullwheel is used in cable construction, mainly utilize frictional force drive wire rope and pulley hook between friction drum and the wire rope to remove, resistance and wearing and tearing that have eliminated because of the unordered winding of wire rope produces, improve wire rope's life, reduce and receive and release the line resistance, secondly, the stroke that utilizes to reset makes the extension of energy storage spring, the effect of counter weight is played to the elasticity of energy storage spring simultaneously, the effort that need apply when reducing the pulling pulley hook, the effort that the stroke that makes to reset was applyed also can play effective effect, it is more laborsaving to use.

Description

Cable tightening device for cable construction

Technical Field

The invention relates to the technical field of cable erection, in particular to a cable tightening device for cable construction.

Background

The overhead line needs to be tightened up in time by using a wire tightening device after the paying-off is finished, the commonly used wire tightener mainly comprises a lever, a ratchet wheel, a winding drum and a steel wire rope, one end of the wire tightener hooks a firm component during the wire tightening, the other end of the wire tightener is hung on a wire clamp, the ratchet wheel is rotated through the lever, the winding drum is driven to rotate in a single direction, the steel wire rope is tightened, and then the cable is pulled, so that the wire tightening is realized.

In order to ensure proper tensioning displacement, the length of the steel wire rope is long, and the steel wire rope needs to be wound for a plurality of weeks, on one hand, when the steel wire rope is wound, the steel wire rope is rubbed with one another, the service life of the steel wire rope can be influenced, on the other hand, the steel wire rope is wound in a winding drum easily and disorderly, the resistance of winding and unwinding is increased, the use is influenced, meanwhile, the setting length of the steel wire rope is also restricted, the tensioning distance is limited, when the steel wire rope is operated, the wire tightening work can be completed by repeating for a plurality of times, and the operation process is complicated.

Secondly, the long distance cable quality is great, and is comparatively hard when the rolling, though the handle of straining device utilizes leverage, has saved strength, but is limited by workman's arm length, and handle length is limited, and the power of saving is limited, and especially after long-time the use, the straining device has the jamming phenomenon, is difficult to use more.

Disclosure of Invention

In order to overcome the defects of the background technology, the invention provides the technical scheme of the wire tightening device for cable construction, the steel wire rope and the pulley hook are driven to move by using the friction force between the friction roller and the steel wire rope, the resistance and abrasion caused by the disordered winding of the steel wire rope are eliminated, the wire take-up and pay-off resistance is reduced, the energy storage spring is extended by using the reset stroke, meanwhile, the elastic force of the energy storage spring plays the role of a balance weight, the acting force required to be applied when the pulley hook is pulled is reduced, and the problems in the background technology are solved.

The invention provides the following technical scheme: a wire tightening device for cable construction comprises a shell, a steel wire rope and a pulley hook, wherein a ratchet wheel is arranged in the middle of the shell, the shell is hinged with a handle, the handle drives the ratchet wheel to rotate when rotating, the ratchet wheel is fixedly connected with a friction roller, a guide roller is arranged at one end of the shell, one end of the steel wire rope is fixedly connected with the shell, the other end of the steel wire rope sequentially bypasses the side walls of the pulley, the friction roller and the guide roller of the pulley hook and vertically extends downwards under gravity, a first clamping sleeve and a second clamping sleeve are arranged below the guide roller, one side of the first clamping sleeve is connected with an energy storage spring, the energy storage spring applies downward acting force to the first clamping sleeve, the energy storage spring is connected with an energy storage cylinder, a telescopic rod is arranged between the shell and the handle and communicated with the energy storage cylinder, and the first clamping sleeve clamps the steel wire rope when being far away from the shell, at the same time, the second clamping sleeve releases the wire rope, when moving towards the housing, the wire rope is released, and at the same time, the second clamping sleeve clamps the wire rope.

Preferably, the first clamping sleeve comprises a movable sleeve fixedly connected with the energy storage spring through a connecting plate, a first cartridge clip is sleeved below the movable sleeve, and a first elastic sleeve enabling the first cartridge clip to be sleeved into the movable sleeve is arranged between the first cartridge clip and the movable sleeve.

Preferably, the first clamping sleeve is located above the second clamping sleeve, and the housing is connected with the second clamping sleeve through an L-shaped plate.

Preferably, the second clamping sleeve comprises a connecting sleeve and a second cartridge clip which are mutually sleeved, the connecting sleeve is fixedly connected with the L-shaped plate, a second elastic sleeve is arranged between the connecting sleeve and the second cartridge clip, a connecting block is arranged on the outer side wall of the second cartridge clip, and the connecting block is in transmission connection with the handle through a connecting rod.

Preferably, the shell is provided with a sliding groove, the telescopic rod is connected with the shell in a sliding mode through the sliding groove, the telescopic rod penetrates through the sliding groove through the connecting port to be movably connected with the connecting rod, the connecting rod is arranged in an inclined mode, the connecting rod is not pressed when the telescopic rod slides under pressure, and the connecting rod is pressed when the telescopic rod slides under tension.

Preferably, an elastic structure which enables the telescopic rod to be pressed is arranged in the sliding groove, the maximum elastic force of the elastic structure is smaller than the minimum elastic force of the energy storage spring, and the minimum elastic force of the elastic structure can overcome the elastic force of the second elastic sleeve to enable the second cartridge clip to move.

Preferably, the second elastic sleeve has an elastic force sufficient to overcome the weight of the connecting rod.

Preferably, the second cartridge clip and the first cartridge clip each have magnetism.

The invention has the following beneficial effects:

1. this tight line device is used in cable construction mainly utilizes frictional force drive wire rope and pulley hook between friction drum and the wire rope to remove, and wire rope single strand winding has eliminated because of resistance and the wearing and tearing that the unordered winding of wire rope produced on the one hand, improves wire rope's life, reduces and receives and releases the line resistance, and on the other hand, wire rope's length can set up wantonly, is enough to satisfy the displacement that tight line needs, and tight line operation can be accomplished to one operation, simplifies the operation flow.

2. This tensioner bullwheel is used in cable construction utilizes the stroke that resets to make the extension of energy storage spring, and the elasticity of energy storage spring plays the effect of counter weight simultaneously, reduces the effort that need apply when pulling the pulley hook, makes the effort that the stroke that resets was applied also can play effective effect, uses more laborsavingly.

Drawings

FIG. 1 is a schematic view of an oblique top view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of a first clamping sleeve according to the present invention;

FIG. 4 is a schematic view of a second clamping sleeve according to the present invention.

In the figure: 1. a housing; 2. a wire rope; 3. a pulley hook; 4. a handle; 5. a ratchet wheel; 6. a friction roller; 7. a guide roller; 8. an energy storage spring; 9. an energy storage cylinder; 10. a telescopic rod; 11. a first clamping sleeve; 111. moving the sleeve; 112. a first clip; 113. a first elastic sleeve; 114. a connecting plate; 12. a second clamping sleeve; 121. connecting sleeves; 122. a second cartridge clip; 123. a second elastic sleeve; 124. connecting blocks; 13. a connecting rod; 14. an L-shaped plate; 15. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, a cable tensioner for cable construction includes a housing 1, a steel cable 2 and a pulley hook 3, the housing 1 is connected to a fixed member through the hook, a ratchet 5 is disposed in the middle of the housing 1, the housing 1 is hinged to a handle 4, the handle 4 is connected to the middle of the housing 1, the handle 4 drives the ratchet 5 to rotate when rotating, a driving arm capable of driving the ratchet 5 to rotate in one direction is hinged to the handle 4, the driving arm can rotate in one direction, the ratchet 5 is fixedly connected to a friction roller 6, a buckle matched with the driving arm is disposed on the housing 1, when the driving arm is released, the buckle limits the rotation of the ratchet 5 (as in the prior art, the buckle is omitted in fig. 1 and 2), a guide roller 7 is disposed at one end of the housing 1, one end of the steel cable 2 is fixedly connected to the housing 1, and the other end of the steel cable passes over the pulley of the pulley hook 3, the friction roller 6 and the side wall of the guide roller 7 in sequence and extends vertically downwards under gravity, a first clamping sleeve 11 and a second clamping sleeve 12 are arranged below the guide roller 7, the second clamping sleeve 12 is fixedly connected with the shell 1, one side of the first clamping sleeve 11 is connected with an energy storage spring 8, the energy storage spring 8 applies downward acting force to the first clamping sleeve 11, the energy storage spring 8 is connected with an energy storage cylinder 9, an expansion link 10 is arranged between the shell 1 and the handle 4, one end of the expansion link 10 is hinged with the bottom of the handle 4, the other end of the expansion link is hinged with a bulge extending out of the shell 1, the expansion link 10 is communicated with the energy storage cylinder 9, media in the energy storage cylinder 9 and the expansion link 10 are gas, in the process that the handle 4 does not act with the ratchet wheel 5, the energy storage cylinder 9 is driven by the expansion link 10 to store energy, in the embodiment, the guide roller 7 and the expansion link 10 are arranged at one end facing the pulley hook 3, and when the handle 4 rotates back to the pulley hook 3, the ratchet wheel 5 and the friction roller 6 are driven to rotate, the traction steel wire rope 2 pulls the pulley hook 3, when the handle 4 rotates towards the pulley hook 3, the driving arm retracts to drive the ratchet wheel 5 and the friction roller 6 to rotate, but the telescopic rod 10 is extruded to enable the energy storage spring 8 to be elongated, and then the energy storage spring 8 is elongated to realize energy storage, the first clamping sleeve 11 clamps the steel wire rope 2 when being far away from the shell 1, the second clamping sleeve 12 releases the steel wire rope 2 when moving towards the shell 1, the second clamping sleeve 12 clamps the steel wire rope 2, namely, when the friction roller 6 rotates to take up wires, the first clamping sleeve 11 clamps the steel wire rope 2 to synchronously pull downwards, when the friction roller 6 does not rotate, the first clamping sleeve 11 releases, the second clamping sleeve 12 clamps the steel wire rope 2 to limit movement, and the first clamping sleeve 11 resets under the action of the energy storage cylinder 9.

Referring to fig. 3, the first clamping sleeve 11 includes a movable sleeve 111 fixedly connected to the energy storage spring 8 through a connecting plate 114, a first clip 112 is sleeved below the movable sleeve 111, a first elastic sleeve 113 for allowing the first clip 112 to be sleeved into the movable sleeve 111 is disposed between the first clip 112 and the movable sleeve 111, and the first elastic sleeve 113 always provides resistance between the first clip 112 and the steel cable 2, when the movable sleeve 111 is subjected to a downward force, the downward force is converted into a radial force of the first clip 112 to clamp the steel cable 2 more tightly, and when the movable sleeve 111 is subjected to an upward force, the first clip 112 and the movable sleeve 111 are far away from each other to actively release the steel cable 2.

The first clamping sleeve 11 is located above the second clamping sleeve 12, the shell 1 is connected with the second clamping sleeve 12 through an L-shaped plate 14, the energy storage cylinder 9 and the energy storage spring 8 are both arranged on the L-shaped plate 14, a piston rod of the energy storage cylinder 9 penetrates through the energy storage spring 8 to be abutted against a connecting plate 114, and two ends of the energy storage spring 8 are respectively fixedly connected with the connecting plate 114 and a cylinder body part of the energy storage cylinder 9.

Referring to fig. 4 and 2, the second clamping sleeve 12 includes a connecting sleeve 121 and a second clip 122 that are sleeved with each other, the connecting sleeve 121 is fixedly connected to the L-shaped plate 14, the connecting sleeve 121 penetrates through the L-shaped plate 14, a second elastic sleeve 123 is disposed between the connecting sleeve 121 and the second clip 122, so that the second clamping sleeve 12 has an initial clamping force on the steel cable 2, and it is ensured that the first clamping sleeve 11 and the second clamping sleeve 12 do not loosen when switching and clamping, a connecting block 124 is disposed on an outer side wall of the second clip 122, the connecting block 124 is in transmission connection with the handle 4 through a connecting rod 13, during a stroke in which the handle 4 drives the ratchet 5 to rotate, the handle 4 simultaneously applies pressure on the connecting rod 13, so that the second clamping sleeve 12 releases the steel cable 2, during a stroke in which the handle 4 does not drive the ratchet 5 to rotate, the connecting rod 13 does not apply pressure, the second clip 122 is sleeved into the connecting sleeve 121 under the action of the second elastic sleeve 123, clamping the wire rope 2.

Referring to fig. 2, a sliding groove 15 is formed in the housing 1, the telescopic rod 10 is slidably connected to the housing 1 through the sliding groove 15, the telescopic rod 10 penetrates through the sliding groove 15 through a connecting port to be movably connected to the connecting rod 13, the other end of the connecting rod 13 is movably connected to the connecting block 124, the connecting rod 13 is obliquely arranged, when the telescopic rod 10 is pressed to slide, the connecting rod 13 is not pressed, when the telescopic rod 10 is pulled to slide, the connecting rod 13 is pressed, and the second clamping sleeve 12 releases the steel wire rope 2.

The sliding groove 15 is internally provided with an elastic structure which enables the telescopic rod 10 to be pressed, the maximum elastic force of the elastic structure is smaller than the minimum elastic force of the energy storage spring 8, the minimum elastic force of the elastic structure can overcome the elastic force of the second elastic sleeve 123 to enable the second bullet clamp 122 to move, when the telescopic rod 10 is pressed, due to the fact that the elastic force of the elastic structure is small, the telescopic rod 10 slides rightwards first, after the second clamping sleeve 12 clamps the steel wire rope 2, the energy storage cylinder 9 is driven to extend, the first clamping sleeve 11 releases the steel wire rope 2, when the telescopic rod 10 is pulled, the elastic structure drives the telescopic rod 10 and the connecting rod 13 to move, and before the driving arm abuts against the ratchet wheel 5, the connecting rod 13 is driven to enable the second clamping sleeve 12 to release the steel wire rope 2.

Wherein the elastic force of the second elastic sleeve 123 is enough to overcome the gravity of the connecting rod 13, so as to ensure that the second clamping sleeve 12 has an initial clamping force on the steel wire rope 2.

The second cartridge clip 122 and the first cartridge clip 112 both have magnetism, so that the first cartridge clip 112 and the second cartridge clip 122 can move along with the steel wire rope, and the clamping reliability is ensured.

The working principle and the working process of the invention are as follows:

the shell 1 is connected with a fixed component through a hook, the pulley hook 3 hooks a wire clamp connected with a cable, the handle 4 rotates rightwards, the telescopic rod 10 drives the energy storage cylinder 9 to extend, the energy storage spring 8 extends to store energy, the handle 4 rotates leftwards, the sliding chute 15 drives the telescopic rod 10 and the connecting rod 13 to move before the driving arm abuts against the ratchet wheel 5, the second clamping sleeve 12 releases the steel wire rope 2, at the moment, the first clamping sleeve 11 preliminarily clamps the steel wire rope 2 under the action of the first elastic sleeve 113, the ratchet wheel 5 and the friction roller 6 are driven to rotate along with the continuous rotation of the handle 4, the energy storage cylinder 9 further contracts, the elastic force of the energy storage spring 8 acts on the first clamping sleeve 11, on one hand, the steel wire rope 2 is further clamped, on the other hand, the tensile force is applied to the steel wire rope 2 through the first clamping sleeve 11, the rotating resistance of the ratchet wheel 5 is reduced, when the handle 4 moves in place, and in a return stroke, the telescopic rod 10 is driven to slide by the rotation of the handle 4, the pressure of the connecting rod 13 on the second clamping sleeve 12 disappears, the second clamping sleeve 12 clamps the steel wire rope 2, the telescopic rod 10 is pressed along with the continuous rotation of the handle 4, the energy storage cylinder 9 is extended, the energy storage spring 8 is enabled to store energy in an extending mode, meanwhile, the movable sleeve 111 is far away from the first cartridge clip 112 and moves upwards along the steel wire rope 2, and after the handle 4 moves to the rightmost side, the handle 4 is rotated in a reciprocating mode, and wire tightening is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cable is tensioner bullwheel for construction, includes casing (1), wire rope (2) and pulley hook (3), the middle part of casing (1) is equipped with ratchet (5), casing (1) articulates there is handle (4), drive ratchet (5) rotate its characterized in that when handle (4) are rotatory: the ratchet wheel (5) is fixedly connected with a friction roller (6), one end of the shell (1) is provided with a guide roller (7), one end of the steel wire rope (2) is fixedly connected with the shell (1), the other end of the steel wire rope sequentially bypasses the side walls of a pulley, the friction roller (6) and the guide roller (7) of the pulley hook (3) and vertically extends downwards under gravity, a first clamping sleeve (11) and a second clamping sleeve (12) are arranged below the guide roller (7), one side of the first clamping sleeve (11) is connected with an energy storage spring (8), the energy storage spring (8) applies downward acting force to the first clamping sleeve (11), the energy storage spring (8) is connected with an energy storage cylinder (9), a telescopic rod (10) is arranged between the shell (1) and the handle (4), the telescopic rod (10) is communicated with the energy storage cylinder (9), and the first clamping sleeve (11) clamps the steel wire rope (2) when the shell (1) is far away from the shell, at the same time, the second clamping sleeve (12) releases the cable (2), releases the cable (2) when moving towards the housing (1), and at the same time the second clamping sleeve (12) clamps the cable (2).

2. The cable tightening device for cable construction according to claim 1, wherein: the first clamping sleeve (11) comprises a movable sleeve (111) fixedly connected with the energy storage spring (8) through a connecting plate (114), a first bullet clip (112) is sleeved below the movable sleeve (111), and a first elastic sleeve (113) enabling the first bullet clip (112) to be sleeved into the movable sleeve (111) is arranged between the first bullet clip (112) and the movable sleeve (111).

3. The cable tightening device for cable construction according to claim 2, wherein: the first clamping sleeve (11) is positioned above the second clamping sleeve (12), and the shell (1) is connected with the second clamping sleeve (12) through an L-shaped plate (14).

4. The cable tightening device for cable construction according to claim 3, wherein: the second clamping sleeve (12) comprises a connecting sleeve (121) and a second cartridge clip (122) which are mutually sleeved, the connecting sleeve (121) is fixedly connected with the L-shaped plate (14), a second elastic sleeve (123) is arranged between the connecting sleeve (121) and the second cartridge clip (122), a connecting block (124) is arranged on the outer side wall of the second cartridge clip (122), and the connecting block (124) is in transmission connection with the handle (4) through a connecting rod (13).

5. The cable tightening device for cable construction according to claim 4, wherein: be equipped with spout (15) on casing (1), telescopic link (10) pass through spout (15) and casing (1) sliding connection, telescopic link (10) pass spout (15) and connecting rod (13) swing joint through the connector, connecting rod (13) slope sets up, and when making telescopic link (10) pressurized slide, connecting rod (13) do not receive the pressure, and when telescopic link (10) were pulled and are slided, connecting rod (13) pressurized.

6. The cable tightening device for cable construction according to claim 5, wherein: an elastic structure which enables the telescopic rod (10) to be pressed is arranged in the sliding groove (15), the maximum elastic force of the elastic structure is smaller than the minimum elastic force of the energy storage spring (8), and the minimum elastic force of the elastic structure can overcome the elastic force of the second elastic sleeve (123) to enable the second sub-clip (122) to move.

7. The cable tightening device for cable construction according to claim 5, wherein: the elastic force of the second elastic sleeve (123) is enough to overcome the gravity of the connecting rod (13).

8. The cable tightening device for cable construction according to claim 4, wherein: the second sub clip (122) and the first sub clip (112) each have magnetic properties.