CN210326724U

CN210326724U - Buffer adjustable torque wire grip

Info

Publication number: CN210326724U
Application number: CN201921293758.3U
Authority: CN
Inventors: 刘洪亮
Original assignee: Hebei Black Bull Power Fitting Co ltd
Current assignee: Hebei Black Bull Power Fitting Co ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-04-14
Anticipated expiration: 2029-08-12

Abstract

The utility model relates to an electric power fitting technical field especially relates to a buffering adjustable moment turn-buckle. The locking device comprises a shell, through grooves arranged on two sides of the shell, a transmission device arranged in the shell and locking devices arranged on two sides of the transmission device, wherein the transmission device comprises a disc, a convex block, a top block, a handle, a ratchet wheel, a pawl, a first rotating shaft, a spring and a clamping block; adopt two sets of pawls and ratchet meshing, two sets of pawls are reverse to be installed, guarantee to drive one of them first pivot rotatory when clockwise stirring the handle, handle anticlockwise can drive another first pivot rotatory when rotatory, can be through the couple of two directions of a handle control, high durability and convenient operation, knob control screw, it forms the friction to drive the semi-ring and contact with the friction ring, can control the atress degree of reel, when cable tension is too big, produce the friction, produce idle running, can not resume tight line, guarantee to reduce the damage to the cable.

Description

Buffer adjustable torque wire grip

Technical Field

The utility model relates to an electric power fitting technical field especially relates to a buffering adjustable moment turn-buckle.

Background

When an overhead high-voltage line of an electric power system is laid, constructed or patrolled, whether the high-voltage line is tensioned or not is directly related to the normal use of the whole electric power line, if the electric power line passes, if the electric power line is too loose, the high-voltage line can swing due to overlarge sag and collide with each other to generate short circuit, if the electric power line is too tight, the high-voltage line is easy to break or break a wire rod, and a wire tightener plays a role of tensioning a lead in the laying construction of the overhead line and can keep the electric power line under proper tightness; the existing tightener is manually controlled, force cannot be controlled, a circuit cannot be accurately pulled to a proper position, the phenomenon of over-tightness or over-tightness is caused, and most of the existing tighteners are loosened and tightened by one end, so that the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem, the technique that exists is not enough to the aforesaid, a buffering adjustable torque turn-buckle is provided, adopt two sets of pawls and ratchet meshing, two sets of pawls are reverse to be installed, guarantee to drive one of them first pivot rotation when clockwise stirring the handle, can drive another first pivot rotation during handle anticlockwise rotation, can be through the couple of two directions of a handle control, and convenient for operation, knob control screw, it forms the friction to drive the semi-ring with the friction ring contact, can control the atress degree of reel, when cable tension is too big, produce the friction, produce idle running, can not resume the tight line, guarantee to reduce the damage to the cable.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the locking device comprises a shell, through grooves arranged on two sides of the shell, a transmission device arranged in the shell and locking devices arranged on two sides of the transmission device, wherein the transmission device comprises a disc, a convex block, a top block, a handle, a ratchet wheel, a pawl, a first rotating shaft, a spring and a clamping block; a first groove is formed in one side of the disc, a second groove is formed in the handle, shifting pieces are arranged at two ends of the clamping block respectively, two first rotating shafts are connected with bearings on two sides of the shell respectively and are connected with two disc rotating shafts respectively, the two discs are connected in a fastening mode, a plurality of convex blocks are distributed on the outer circle of the ratchet wheel in the circumferential direction, and the handle is installed on the disc; one end of the spring is arranged in the second groove, and the other end of the spring is arranged on the top block; a third groove is formed in the joint of the handle and the disc, the fixture block rotating shaft is connected to the middle of the third groove, two second rotating shafts are symmetrically arranged at one end of the first rotating shaft, the pawl is mounted on the second rotating shafts, a torsion spring is arranged between the pawl and the second rotating shafts, one end of the torsion spring is mounted on the second rotating shafts, the other end of the torsion spring is mounted on the pawl, and the pawl is in meshing transmission with the ratchet wheel; the locking device comprises a bobbin frame, a wire coil, a third rotating shaft, a fixing plate, a screw rod, a friction ring, a semi-ring, a friction pad and a knob; the wire coil frame is installed on one side inside the shell, the wire coil is connected with the wire coil frame rotating shaft, a fourth rotating shaft is arranged at the position, where the rotating shaft connecting part of the wire coil and the wire coil frame penetrates through the wire coil frame, of the wire coil frame, one end of the third rotating shaft is connected to one side of the shell through a bearing, the other end of the third rotating shaft is connected with the fixing plate rotating shaft, the two ends of the fixing plate are provided with a baffle, the two screw rotating shafts are connected to the baffle, the semi-ring is in threaded connection on the screw, the friction ring is installed at one end of the fourth rotating shaft, the.

According to the technical scheme, the two first rotating shafts are connected through the thrust ball bearings, the two clamping blocks are symmetrically arranged, the angle between the two clamping blocks is an obtuse angle, the clamping blocks are matched with the protruding blocks, the two pawls on the first rotating shafts are arranged inside the ratchet wheel in parallel, the mounting directions of the two pawls arranged in parallel are opposite, and the thicknesses of the two symmetrical pawls are equal to the thickness of the ratchet wheel.

Further optimize this technical scheme, the screw thread on the screw rod is provided with two sets ofly on the screw rod symmetry, the diameter of semi-ring equals the diameter of friction circle, be provided with the gear respectively on first pivot and the third pivot, two gear key connects on first pivot and third pivot, two gear engagement transmission.

Further optimize this technical scheme, be provided with wire rope in the drum, be provided with the couple on the wire rope, two locking device structure sets up the same.

Compared with the prior art, the utility model has the advantages of it is following: 1. the handle rotates to drive the clamping blocks to rotate, the clamping blocks are meshed with the convex blocks to drive the ratchet wheel to rotate, and the two clamping blocks are symmetrically arranged, so that the structure is favorable for ensuring that the two clamping blocks can clamp the ratchet wheel to rotate in two directions; 2. the ratchet wheel is meshed with the two symmetrical groups of pawls, and the two groups of pawls are opposite in installation direction, so that the structure is favorable for ensuring that the clockwise rotation and the anticlockwise rotation of the handle can respectively drive the two wire coils to rotate; 3. the friction pad in the semi-ring and the friction ring generate friction, the knob can adjust the friction force, the structure is favorable for ensuring that the cable tightening degree can be controlled through the friction force, and the damage to the cable is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a buffering adjustable torque tightener.

Fig. 2 is an exploded view of a cushioned adjustable torque turnbuckle actuator.

Fig. 3 is a schematic structural diagram of a buffering adjustable torque tightener.

Fig. 4 is an exploded view of a buffer adjustable torque tightener locking device.

In the figure: 1. a housing; 2. a through groove; 3. a transmission device; 4. a locking device; 5. a disc; 6. a bump; 7. a top block; 8. a handle; 9. a ratchet wheel; 10. a pawl; 11. a first rotating shaft; 12. a spring; 13. a clamping block; 14. a first groove; 15. a second groove; 16. a shifting sheet; 17. a third groove; 18. a second rotating shaft; 19. a torsion spring; 20. a bobbin holder; 21. wire coils; 22. a third rotating shaft; 23. a fixing plate; 24. a screw; 25. a friction ring; 26. a half ring; 27. a friction pad; 28. a knob; 29. a fourth rotating shaft; 30. a baffle plate; 31. hooking; 32. a gear; 33. a steel cord.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-4, the device comprises a housing 1, through slots 2 arranged on both sides of the housing 1, a transmission device 3 arranged inside the housing 1, and locking devices 4 arranged on both sides of the transmission device 3, wherein the transmission device 3 comprises a disc 5, a projection 6, a top block 7, a handle 8, a ratchet 9, a pawl 10, a first rotating shaft 11, a spring 12, and a fixture block 13; a first groove 14 is formed in one side of the disc 5, a second groove 15 is formed in the handle 8, shifting pieces 16 are respectively arranged at two ends of the clamping block 13, the two first rotating shafts 11 are respectively connected with bearings at two sides of the shell 1, the two first rotating shafts 11 are respectively connected with the two rotating shafts of the disc 5, the two discs 5 are fixedly connected, the plurality of convex blocks 6 are circumferentially distributed on the outer ring of the ratchet wheel 9, and the handle 8 is installed on the disc 5; one end of the spring 12 is arranged in the second groove 15, and the other end of the spring is arranged on the top block 7; a third groove 17 is formed in the joint of the handle 8 and the disc 5, the rotating shaft of the clamping block 13 is connected to the middle of the third groove 17, two second rotating shafts 18 are symmetrically arranged at one end of the first rotating shaft 11, the pawl 10 is installed on the second rotating shafts 18, a torsion spring 19 is arranged between the pawl 10 and the second rotating shafts 18, one end of the torsion spring 19 is installed on the second rotating shafts 18, the other end of the torsion spring is installed on the pawl 10, and the pawl 10 and the ratchet wheel 9 are in meshing transmission; the locking device 4 comprises a bobbin bracket 20, a bobbin 21, a third rotating shaft 22, a fixing plate 23, a screw 24, a friction ring 25, a half ring 26, a friction pad 27 and a knob 28; the bobbin frame 20 is installed on one side inside the shell 1, the bobbin 21 is connected with the bobbin frame 20 in a rotating shaft mode, a fourth rotating shaft 29 is arranged at the position, where the rotating shaft of the bobbin 21 is connected with the bobbin frame 20, of the junction of the bobbin 21 and the rotating shaft of the bobbin frame 20 penetrates through the bobbin frame 20, one end of the third rotating shaft 22 is connected to one side of the shell 1 in a bearing mode, the other end of the third rotating shaft 22 is connected with a fixing plate 23 in a rotating shaft mode, baffles 30 are arranged at two ends of the fixing plate 23, two rotating shafts of the screw rods 24 are connected to the baffles 30, the half rings 26 are connected to the screw rods 24 in a threaded mode, the friction rings 25 are installed at one end; the two first rotating shafts 11 are connected through a thrust ball bearing, the two clamping blocks 13 are symmetrically arranged, the angle between the two clamping blocks 13 is an obtuse angle, the clamping blocks 13 are matched with the protruding blocks 6, the pawls 10 on the two first rotating shafts 11 are arranged in parallel inside the ratchet wheel 9, the mounting directions of the two pawls 10 arranged in parallel are opposite, and the thickness of the two symmetrical pawls 10 is equal to that of the ratchet wheel 9; two groups of threads on the screw rod 24 are symmetrically arranged on the screw rod 24, the diameter of the semi-ring 26 is equal to that of the friction ring 25, gears 32 are respectively arranged on the first rotating shaft 11 and the third rotating shaft 22, the two gears 32 are in key connection with the first rotating shaft 11 and the third rotating shaft 22, and the two gears 32 are in meshing transmission; be provided with wire rope 33 in the drum 21, be provided with couple 31 on the wire rope 33, two locking device 4 structural settings is the same.

The working principle is as follows: the transmission device 3 is that the plectrum 16 is stirred to enable one clamping block 13 to be meshed with the convex block 6, the spring 12 is used for applying force to prop against the plectrum 16, then the handle 8 is rotated clockwise, the handle 8 drives the convex block 6 meshed with the clamping block 13 to drive the whole ratchet wheel 9 to be meshed, the ratchet wheel 9 drives two groups of pawls 10 arranged in parallel to be meshed for transmission, the two groups of pawls 10 are reversely arranged, so that the ratchet wheel 9 can only drive one group of pawls 10 to be meshed for transmission when rotated clockwise, the other group of pawls 10 do not rotate, the same other group of pawls 10 rotate when rotated anticlockwise, the pawls 10 are arranged on a first rotating shaft 11, the pawls 10 drive the first rotating shaft 11 to rotate, a gear 32 connected with a key on the first rotating shaft 11 is meshed for transmission to drive a third rotating shaft 22 to rotate, a locking device 4 arranged on the third rotating shaft 22 drives a wire coil 21 to rotate, a steel, two sets of threads are arranged on the screw 24, the directions of the two sets of threads are opposite, so that when the knob 28 is rotated, the two half rings 26 move towards the middle, the friction ring 25 mounted on the fourth rotating shaft 29 extending out of the wire coil 21 is arranged inside the half rings 26, the half rings 26 move towards the middle, the friction pads 27 on the half rings 26 generate friction with the friction ring 25, the larger the rotation of the knob 28 is, the larger the generated friction force is, when the wire is tightened to a certain degree, the tension generated by the wire is larger than the friction force, the wire coil 21 stops rotating, the transmission device 3 idles, the torque is controlled, and the damage to the wire is reduced.

According to the figures 1 to 4, firstly, a dial 16 is dialed, the dial 16 is installed on a fixture block 13, the fixture block 13 is engaged with a convex block 6 on the outer side of a ratchet wheel 9, a spring 12 is used for exerting force in a second groove 15 to drive a jacking block 7 to jack the dial 16, so that the dial 16 cannot rotate in a third groove 17, a handle 8 is rotated clockwise, the handle 8 drives a disc 5 to rotate, the fixture block 13 is engaged with the convex block 6, so that the handle 8 drives the ratchet wheel 9 to rotate clockwise in a first groove 14, two groups of pawls 10 are installed in parallel in the ratchet wheel 9, the installation directions of the two groups of pawls 10 are opposite, one group of pawls 10 are engaged with the ratchet wheel 9 when the ratchet wheel 9 rotates clockwise, the other group of pawls 10 do not rotate, a torsion spring 19 between the pawls 10 and a second rotating shaft 18 exerts force, so that the pawls 10 are always engaged with the ratchet wheel 9, the pawls 10 are installed on the first rotating shaft 11, so that the, the gear 32 connected with the key on the first rotating shaft 11 is in meshing transmission with the gear 32 on the third rotating shaft 22 to drive the third rotating shaft 22 to rotate, when another wire coil 21 is needed, the poking sheet 16 is poked reversely, the symmetrical clamping blocks 13 and the cam are rotated anticlockwise in the same way as the steps, and the wire coil 21 at the other end is driven to rotate; the locking device 4 can be adjusted by the through slot 2, the third rotating shaft 22 rotates to drive the fixing plate 23 connected with the rotating shaft to rotate, the diameter of the slot on the fixing plate 23 is larger than that of the third rotating shaft 22, so that the fixing plate 23 can move on the third rotating shaft 22, the baffle 30 on the fixing plate 23 is perpendicular to the fixing plate 23, the adjusting knob 28 drives the two screw rods 24 to rotate, the threads on the screw rods 24 are two groups, the two groups of threads are opposite, when the screw rods 24 rotate, the two half rings 26 connected by the threads move to the middle of the screw rods 24, the friction ring 25 arranged on the fourth rotating shaft 29 is between the two half rings 26, when the two half rings 26 move to the middle, the friction ring 25 is contacted to generate friction, the magnitude of the friction force can be controlled according to the number of rotation turns of the knob 28, so that the third rotating shaft 22 drives the fourth rotating shaft 29 to rotate through the locking device 4, and the, the wire coil 21 controls the steel wire rope 33 to drive the hook 31 to retract, so that the cable is tightened, when the tension of the cable is greater than the friction force and the transmission device 3 continues to rotate, the wire coil 21 stops rotating, the transmission device 3 idles, the cable is guaranteed not to be damaged, the wire breakage is avoided, and the phenomenon that the cable is too loose, swings greatly and generates short circuit is avoided.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a buffering adjustable moment turn-buckle which characterized in that: the locking device comprises a shell (1), through grooves (2) arranged on two sides of the shell (1), a transmission device (3) arranged in the shell (1), and locking devices (4) arranged on two sides of the transmission device (3), wherein the transmission device (3) comprises a disc (5), a convex block (6), a top block (7), a handle (8), a ratchet wheel (9), a pawl (10), a first rotating shaft (11), a spring (12) and a clamping block (13); a first groove (14) is formed in one side of the disc (5), a second groove (15) is formed in the handle (8), shifting pieces (16) are arranged at two ends of the clamping block (13) respectively, the two first rotating shafts (11) are connected with bearings on two sides of the shell (1) respectively, the two first rotating shafts (11) are connected with the two rotating shafts of the disc (5) respectively, the two discs (5) are fixedly connected, the plurality of convex blocks (6) are distributed on the outer ring of the ratchet wheel (9) in the circumferential direction, and the handle (8) is installed on the disc (5); one end of the spring (12) is arranged in the second groove (15), and the other end of the spring is arranged on the top block (7); a third groove (17) is formed in the joint of the handle (8) and the disc (5), the rotating shaft of the clamping block (13) is connected to the middle of the third groove (17), two second rotating shafts (18) are symmetrically arranged at one end of the first rotating shaft (11), the pawl (10) is installed on the second rotating shafts (18), a torsion spring (19) is arranged between the pawl (10) and the second rotating shafts (18), one end of the torsion spring (19) is installed on the second rotating shafts (18), the other end of the torsion spring is installed on the pawl (10), and the pawl (10) and the ratchet wheel (9) are in meshing transmission;

the locking device (4) comprises a wire coil rack (20), a wire coil (21), a third rotating shaft (22), a fixing plate (23), a screw rod (24), a friction ring (25), a half ring (26), a friction pad (27) and a knob (28); the wire coil frame (20) is installed on one side inside the shell (1), the wire coil (21) is connected with a rotating shaft of the wire coil frame (20), a fourth rotating shaft (29) is arranged at the joint of the wire coil (21) and the rotating shaft of the wire coil frame (20) after penetrating through the wire coil frame (20), one end of the third rotating shaft (22) is connected to one side of the shell (1) through a bearing, the other end of the third rotating shaft (22) is connected with a rotating shaft of the fixing plate (23), baffle plates (30) are arranged at two ends of the fixing plate (23), the two rotating shafts of the screw rods (24) are connected onto the baffle plates (30), the half rings (26) are in threaded connection on the screw rods (24), the friction rings (25) are installed on one end of the fourth rotating shaft (29), the half rings (27) are installed in the half rings (26), and the screw rods (24).

2. The damped adjustable torque turnbuckle of claim 1 wherein: two thrust ball bearing connects between first pivot (11), fixture block (13) symmetry is provided with two, two the angle between fixture block (13) is the obtuse angle, fixture block (13) and lug (6) cooperation, two pawl (10) parallel arrangement on first pivot (11) is inside ratchet (9), parallel arrangement's two pawl (10) installation opposite direction, two of symmetry the thickness of pawl (10) equals the thickness of ratchet (9).

3. The damped adjustable torque turnbuckle of claim 1 wherein: two groups of threads on the screw rod (24) are symmetrically arranged on the screw rod (24), the diameter of the semi-ring (26) is equal to that of the friction ring (25), gears (32) are respectively arranged on the first rotating shaft (11) and the third rotating shaft (22), the two gears (32) are in key connection with the first rotating shaft (11) and the third rotating shaft (22), and the two gears (32) are in meshing transmission.

4. The damped adjustable torque turnbuckle of claim 1 wherein: be provided with wire rope (33) in drum (21), be provided with couple (31) on wire rope (33), two locking device (4) structure sets up the same.