CN113659486A

CN113659486A - High-tensile rotary connector and using method thereof

Info

Publication number: CN113659486A
Application number: CN202110783587.8A
Authority: CN
Inventors: 米志龙; 陈益
Original assignee: Yangzhou Weiyi Electric Machinery Co ltd
Current assignee: Yangzhou Weiyi Electric Machinery Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-11-16
Anticipated expiration: 2041-07-12
Also published as: CN113659486B

Abstract

The invention provides a high-tensile rotary connector which comprises a baffle plate frame, a first cross rod, a rotary buffer seat, an anti-slip traction hook assembly, an adjustable ratchet adjusting rod assembly, a high-strength shackle assembly with small friction force, a bearing ring, an anti-slip lifting hook, a roller shaft rod, a steel wire rope winding wheel, a tensioning connecting steel wire rope and a lifting gear, wherein the first cross rod is fixed at the upper part of the inner side of the baffle plate frame and the lower part of the rotary buffer seat in a connecting mode through a transverse bolt. The invention extends and adjusts the total length of the rotating rod and the containing pipe by screwing the containing pipe, takes the antiskid rubber sleeve to play the antiskid role and saves strength by utilizing the lever principle; squeezing the oil injection air bag to perform maintenance operation again; the upper guide shaft, the wire pulley are connected to rings, and the middle guide shaft and the lower guide shaft are arranged to wind the cable wires in multiple ways to be connected and fixed, so that the stability and the safety of the tensioning connection operation are improved.

Description

High-tensile rotary connector and using method thereof

Technical Field

The invention belongs to the technical field of electric power machines and tools, and particularly relates to a high-tensile rotary connector and a using method thereof.

Background

Fiber optic cables are manufactured to meet optical, mechanical, or environmental performance specifications and utilize one or more optical fibers disposed in a covering jacket as the transmission medium and may be used individually or in groups as telecommunication cable assemblies. The optical cable is mainly composed of optical fibers (thin glass filaments like hair), a plastic protective sleeve and a plastic sheath, and metals such as gold, silver, copper and aluminum are not contained in the optical cable, so that the optical cable generally has no recycling value. The optical cable is a communication line which is formed by a certain number of optical fibers into a cable core in a certain mode, is externally coated with a sheath, and is also coated with an outer protective layer for realizing optical signal transmission. Namely: a cable formed by subjecting an optical fiber (optical transmission carrier) to a certain process. The basic structure of the optical cable generally comprises a cable core, a reinforcing steel wire, a filler, a sheath and other parts, and further comprises a waterproof layer, a buffer layer, an insulated metal wire and other components according to requirements.

Typically a rope-like cable made up of several or groups of conductors (at least two in each group) twisted together, with the conductors of each group being insulated from one another and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation.

Tighteners, also known as ratchet tighteners, are used to tighten wires in overhead line laying operations. When the wire grip is used, the steel wire rope or the galvanized iron wire on the wire grip is firstly loosened and fixed on the cross arm, the wire is clamped by the wire grip, and then the special wrench is pulled. Due to the anti-reversion function of the pawl, the steel wire rope or the galvanized iron wire is gradually wound on the ratchet wheel roller, so that the wire is tightened. And fixing the tightened lead on the insulator. Then the pawl is firstly loosened to loosen the steel wire rope or the galvanized iron wire, then the wire clamp is loosened, and finally the steel wire rope or the galvanized iron wire is wound on the roller of the ratchet wheel.

Connectors are required during the construction of both fiber optic cables and electrical cables. In addition, the invention discloses an optical cable tightener with the Chinese patent publication number of CN103487910A, which comprises a connecting frame and a rope wheel arranged on the connecting frame, wherein the left end of the connecting frame is provided with a fixed hook, the side part of the connecting frame is provided with a wrench, a steel wire rope is wound on the rope wheel, and the free end of the steel wire rope is fixedly provided with a traction hook which is hooked with a pre-stranded wire strain clamp. However, the existing cable connector has the problems that the length cannot be adjusted by the adjusting handle, so that the cable connector is labor-consuming to operate, poor in hooking firmness of the cable and inconvenient to lubricate and maintain the connector and the pull rope.

Accordingly, it is desirable to provide a high tensile strength rotary connector and a method for using the same.

Disclosure of Invention

In order to solve the technical problems, the invention provides a high tensile rotary connector and a use method thereof, which are used for solving the problems that the length of the conventional cable connector cannot be adjusted by an adjusting handle, so that the cable connector consumes labor in operation, is poor in hooking firmness of a cable, and is inconvenient for lubricating and maintaining the connector and a pull rope.

A high-tensile rotary connector comprises a baffle plate frame, a first cross rod, a rotary buffer seat, an anti-slip traction hook assembly, an adjustable ratchet adjusting rod assembly, a high-strength shackle assembly with low friction force, a bearing ring, an anti-slip lifting hook, a roller shaft rod, a steel wire rope winding wheel, a tensioning connection steel wire rope and a lifting gear, wherein the first cross rod is fixed at the upper position of the inner side of the baffle plate frame and the lower part of the rotary buffer seat through a transverse bolt; the rotary buffer seat is positioned on the inner side of the baffle frame; the anti-slip traction hook assembly is riveted at the lower end of the tensioning connecting steel wire rope; the adjustable ratchet wheel adjusting rod assembly is connected to the lower side of the outer part of the hoisting gear through a bolt; the high-strength shackle component with small friction force is transversely embedded at the lower part of the inner side of the baffle frame; the bearing ring is connected to the middle position inside the rotary buffer seat through a bolt; the anti-drop lifting hook is axially connected to the upper part of the inner side of the bearing ring; the roll shaft rod is transversely embedded in the middle of the inner part of the baffle frame; the steel wire rope winding wheel is movably sleeved on the outer surface of the roller shaft rod; the tensioning connecting steel wire rope is wound on the outer surface of the steel wire rope winding wheel and penetrates through the inside of the high-strength shackle component with small friction force; the hoisting gear is connected with the right end of the roller shaft rod in a key mode.

Preferably, the anti-slipping traction hook assembly comprises a side baffle, an upper guide shaft, a wire pulley, a connecting hanging ring, a middle guide shaft, a lower guide shaft and a traction hook main body, wherein the upper guide shaft is transversely embedded in the upper position of the inner side of the side baffle; the wire pulleys are respectively sleeved at the left side and the right side of the outer surface of the upper guide shaft; the connecting lifting ring is embedded in the middle of the outer surface of the upper guide shaft; the middle guide shaft is movably embedded in the middle position inside the side baffle; the lower guide shaft is movably embedded in the lower side position inside the side baffle; the traction hook main body is movably sleeved on the outer surface of the lower guide shaft.

Preferably, the adjustable ratchet adjusting rod assembly comprises a ratchet clamping seat, a limiting screw rod, an adjusting rotating rod, a containing pipe, an anti-skid rubber sleeve and an embedded combined pipe, wherein the limiting screw rod is in threaded connection with the upper end of the inner side of the ratchet clamping seat; the ratchet wheel clamping seat is connected to the left end of the adjusting rotating rod through a screw; the adjusting rotating rod is in threaded connection with the left side position inside the containing pipe; the antiskid rubber sleeve is sleeved at the right side position of the outer surface of the containing pipe; the embedded combined pipe is clamped at the lower end of the accommodating pipe.

Preferably, the high-strength shackle assembly with low friction force comprises a second cross support rod, a limiting baffle, a shackle ring and a sliding ball, wherein the limiting baffle is welded at the middle position of the upper part of the second cross support rod; the shackle ring is movably sleeved at the middle position of the lower part of the outer side of the second transverse strut; the sliding ball is embedded in the middle of the inner side of the second transverse supporting rod.

Preferably, the lower part of the tensioning connecting steel wire rope penetrates through the interior of the connecting hanging ring and is provided with a rivet for connection and fixation.

Preferably, the embedded combined pipe also comprises a sealing cap, a connecting pipe, a cleaning scraping needle and an oil injection air bag, and the sealing cap is glued at the right end of the connecting pipe; the cleaning scraping needle is axially connected to the upper part of the left side of the sealing cap; the oil injection air bag is glued at the lower part of the left side of the connecting pipe.

Preferably, the anti-skid rubber sleeve is a cylindrical insulating silica gel sleeve; the outer surface of the anti-skid rubber sleeve is carved with a straight anti-skid line.

Preferably, the connecting pipe is a stainless steel pipe with a sealed left end; the outer surface of the connecting pipe is provided with threads.

Preferably, the connecting pipe is in threaded connection with the inside of the containing pipe; the sealing cap is buckled at the top end of the containing pipe.

Preferably, the tensioning connecting steel wire rope penetrates through the upper part of the limiting baffle and is positioned behind the sliding ball and penetrates through the lower side position of the inside of the snap ring.

Preferably, the second cross strut is transversely embedded at the lower part of the inner side of the baffle plate frame and is tightly pressed and fixed by a nut.

Preferably, the tensioning connection steel wire rope is a galvanized steel wire rope.

Preferably, the main body structure of the connector is made of high-strength alloy steel.

Preferably, the anti-slip lifting hook and the inner side of the traction hook main body are axially connected with anti-slip tongue pieces.

Preferably, the hoisting gear is a ratchet wheel with the model of SWT 102; and an emergency braking gear is arranged on the hoisting gear.

In addition, the invention also provides a use method of the high-tensile rotary connector, which comprises the following steps:

the method comprises the following steps: the connection of the fixed end: the anti-drop lifting hook is hooked on a fixed frame pulled by a cable;

step two: threading and fixing of the cable: one end of the cable penetrates through the inner gaps of the lower guide shaft and the middle guide shaft to form 8 and bypasses the outer surface of the wire pulley, and the top end of the cable forms a ring and is clamped on the traction hook main body;

step three: tensioning, connecting and braking: the adjusting rotating rod is pressed downwards back and forth so as to drive the hoisting gear and the roll shaft rod to rotate, so that the cable is tensioned and connected, and the connecting effect is achieved;

preferably, in the third step, the accommodating pipe is screwed, so that the total length of the adjusting rotating rod and the accommodating pipe is prolonged, the anti-skid rubber sleeve is held to play a role in skid resistance, and the lever principle is utilized to play a role in saving strength.

Compared with the prior art, the invention has the beneficial effects that:

1. the containing pipe is screwed, so that the total length of the adjusting rotating rod and the containing pipe is prolonged, the anti-skid rubber sleeve is held to play a role in skid resistance, and the lever principle is utilized to play a role in saving strength;

2. after the oil filling air bag is used for a period of time, the connecting pipe is screwed out, the cleaning scraper is used for cleaning oil stains at the connecting part of the hoisting gear, and the oil filling air bag is squeezed to perform maintenance operation again;

3. side shield, upper portion guide axle, wire pulley, connection rings, the setting of middle guide axle and lower part guide axle carry out multiple winding to the cable conductor and connect fixedly, improve the stability and the security of taut connection operation.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the anti-slip traction hitch assembly of the present invention.

FIG. 3 is a schematic structural view of the adjustable ratchet adjustment lever assembly of the present invention.

Fig. 4 is a schematic structural view of the embedded combination pipe of the present invention.

Fig. 5 is a schematic structural view of the low friction high strength shackle assembly of the present invention.

In the figure:

1. a baffle frame; 2. a first cross strut; 3. rotating the buffer seat; 4. the anti-slip traction hook assembly; 41. a side dam; 42. an upper guide shaft; 43. a wire pulley; 44. connecting a lifting ring; 45. a middle guide shaft; 46. a lower guide shaft; 47. a traction hook body; 5. an adjustable ratchet adjustment lever assembly; 51. a ratchet wheel cassette; 52. a limit screw; 53. adjusting the rotating rod; 54. receiving a tube; 55. an anti-slip rubber sleeve; 56. embedding a combined pipe; 561. a sealing cap; 562. a connecting pipe; 563. cleaning the scraping needle; 564. an oil injection air bag; 6. a high strength shackle component with low friction; 61. a second cross strut; 62. a limit baffle; 63. disassembling the snap ring; 64. a sliding ball; 7. a load-bearing ring; 8. an anti-drop lifting hook; 9. a roll shaft lever; 10. a wire rope winding wheel; 11. tensioning the connecting steel wire rope; 12. a lifting gear.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in the attached figure 1, the invention provides a high-tensile rotary connector, which comprises a baffle plate frame 1, a first cross rod 2, a rotary buffer seat 3, an anti-slip traction hook assembly 4, an adjustable ratchet adjusting rod assembly 5, a high-strength shackle assembly 6 with small friction force, a bearing ring 7, an anti-slip lifting hook 8, a roll shaft rod 9, a steel wire rope winding wheel 10, a tension connecting steel wire rope 11 and a lifting gear 12, wherein the first cross rod 2 is fixed at the upper position of the inner side of the baffle plate frame 1 and the lower part of the rotary buffer seat 3 through a transverse bolt; the rotary buffer seat 3 is positioned at the inner side of the baffle frame 1; the anti-slip traction hook component 4 is riveted at the lower end of the tensioning connecting steel wire rope 11; the adjustable ratchet adjusting rod assembly 5 is in bolted connection with the outer lower side position of the hoisting gear 12; the high-strength shackle component 6 with small friction force is transversely embedded at the lower part of the inner side of the baffle frame 1; the bearing ring 7 is connected with the middle position in the rotary buffering seat 3 through a bolt; the anti-falling lifting hook 8 is coupled at the upper part of the inner side of the bearing ring 7 by a shaft; the roll shaft rod 9 is transversely embedded in the middle of the inner part of the baffle frame 1; the steel wire rope winding wheel 10 is movably sleeved on the outer surface of the roller shaft rod 9; the tension connecting steel wire rope 11 is wound on the outer surface of the steel wire rope winding wheel 10 and penetrates through the interior of the high-strength shackle component 6 with small friction force; the lifting gear 12 is connected to the right end of the roller shaft rod 9 in a key mode.

As shown in fig. 2, in the above embodiment, specifically, the anti-slipping towing hook assembly 4 includes a side baffle 41, an upper guide shaft 42, a wire pulley 43, a connecting hanging ring 44, a middle guide shaft 45, a lower guide shaft 46 and a towing hook main body 47, wherein the upper guide shaft 42 is transversely embedded at an upper position inside the side baffle 41; the wire pulleys 43 are respectively sleeved at the left side and the right side of the outer surface of the upper guide shaft 42; the connecting hanging ring 44 is embedded in the middle position of the outer surface of the upper guide shaft 42; the middle guide shaft 45 is movably embedded in the middle position inside the side baffle plate 41; the lower guide shaft 46 is movably embedded in the lower side position inside the side baffle plate 41; the traction hook main body 47 is movably sleeved on the outer surface of the lower guide shaft 46.

As shown in fig. 3 and fig. 4, in the above embodiment, specifically, the adjustable ratchet adjusting rod assembly 5 includes a ratchet seat 51, a limit screw 52, an adjusting rotating rod 53, a receiving tube 54, an anti-slip rubber sleeve 55 and an embedded combination tube 56, wherein the limit screw 52 is connected to an inner upper end position of the ratchet seat 51 in a threaded manner; the ratchet wheel clamping seat 51 is connected to the left end of the adjusting rotating rod 53 through a screw; the adjusting rotating rod 53 is in threaded connection with the left position inside the containing pipe 54; the antiskid rubber sleeve 55 is sleeved at the right side position of the outer surface of the accommodating pipe 54; the embedded combined pipe 56 is clamped at the lower end of the accommodating pipe 54;

the embedded combined pipe 56 also comprises a sealing cap 561, a connecting pipe 562, a cleaning scraping needle 563 and an oil injection air bag 564, and the sealing cap 561 is glued at the right end of the connecting pipe 562; the cleaning scraping needle 563 is axially connected to the upper position of the left side of the sealing cap 561; the oil filling bladder 564 is bonded to the lower left side of the connecting tube 562.

As shown in fig. 5, in the above embodiment, specifically, the low-friction high-strength shackle assembly 6 includes a second cross rod 61, a limit stop plate 62, a shackle ring 63 and a sliding ball 64, wherein the limit stop plate 62 is welded at an upper middle position of the second cross rod 61; the shackle ring 63 is movably sleeved at the middle position of the lower part of the outer side of the second transverse strut 61; the sliding ball 64 is embedded in the middle of the inner side of the second cross strut 61.

In the above embodiment, specifically, the lower portion of the tensioned connecting cable 11 penetrates through the interior of the connecting suspension ring 44 and is provided with a rivet for connection and fixation.

In the above embodiment, specifically, the anti-slip rubber sleeve 55 specifically adopts a cylindrical insulating silica gel sleeve; the outer surface of the antiskid rubber sleeve 55 is carved with straight antiskid lines.

In the above embodiment, specifically, the connecting pipe 562 specifically adopts a stainless steel pipe with a sealed left end; the outer surface of the connecting pipe 562 is provided with threads.

In the above embodiment, specifically, the connection pipe 562 is screwed inside the receiving pipe 54; the sealing cap 561 is fastened to the top end of the receiving tube 54.

In the above embodiment, specifically, the tightening connection wire 11 penetrates through the upper portion of the limit stop 62 and is located behind the sliding ball 64 and penetrates through the inner lower side of the release ring 63.

In the above embodiment, specifically, the second cross strut 61 is transversely embedded in the lower position of the inner side of the baffle frame 1 and is tightly pressed and fixed by a nut.

In the above embodiment, specifically, the tensioned connecting steel wire rope 11 specifically adopts a galvanized steel wire rope.

In the above embodiment, the main body structure of the connector is made of high-strength alloy steel.

In the above embodiment, specifically, the anti-slip lifting hook 8 and the inner side of the traction hook main body 47 are coupled with anti-slip tongue pieces.

In the above embodiment, specifically, the lifting gear 12 specifically adopts a ratchet wheel with the model number of SWT 102; the hoisting gear 12 is provided with an emergency braking gear.

the method comprises the following steps: the connection of the fixed end: the anti-drop lifting hook 8 is hooked on a fixing frame pulled by a cable;

step two: threading and fixing of the cable: one end of the cable penetrates through the inner gaps of the lower guide shaft 46 and the middle guide shaft 45 to form 8 and passes through the outer surface of the wire pulley 43, and the top end of the cable forms a ring and is clamped on the traction hook main body 47;

step three: tensioning, connecting and braking: the adjusting rotating rod 53 is pressed downwards back and forth so as to drive the lifting gear 12 and the roller shaft 9 to rotate, so that the cable is tensioned and connected, and the connecting effect is achieved;

in the above embodiment, specifically, in the third step, the accommodating tube 54 is screwed, so that the total length of the adjusting rotating rod 53 and the accommodating tube 54 is extended, the anti-slip rubber sleeve 55 is held to play the role of anti-slip, and the function of saving strength is played by using the lever principle.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The high-tensile rotary connector is characterized by comprising a baffle plate frame (1), a first cross rod (2), a rotary buffer seat (3), an anti-slip traction hook assembly (4), an adjustable ratchet adjusting rod assembly (5), a high-strength shackle assembly (6) with small friction force, a bearing ring (7), an anti-slip hook (8), a roll rod (9), a steel wire rope winding wheel (10), a tension connection steel wire rope (11) and a hoisting gear (12), wherein the first cross rod (2) is fixed at the upper position of the inner side of the baffle plate frame (1) and the lower part of the rotary buffer seat (3) through transverse bolt connection; the rotary buffer seat (3) is positioned on the inner side of the baffle frame (1); the anti-slip traction hook component (4) is riveted at the lower end of the tensioning connecting steel wire rope (11); the adjustable ratchet adjusting rod assembly (5) is connected to the outer lower side position of the lifting gear (12) through a bolt; the high-strength shackle component (6) with small friction force is transversely embedded at the lower part of the inner side of the baffle frame (1); the bearing ring (7) is connected to the middle position inside the rotary buffer seat (3) through a bolt; the anti-falling lifting hook (8) is coupled to the upper part of the inner side of the bearing ring (7) in a shaft manner; the roll shaft rod (9) is transversely embedded in the middle of the inner part of the baffle frame (1); the steel wire rope winding wheel (10) is movably sleeved on the outer surface of the roller shaft rod (9); the tensioning connecting steel wire rope (11) is wound on the outer surface of the steel wire rope winding wheel (10) and penetrates through the inside of the high-strength shackle component (6) with small friction force; the hoisting gear (12) is connected to the right end of the roll shaft rod (9) in a key mode.

2. The high-tensile rotary connector according to claim 1, wherein the anti-slip traction hook assembly (4) comprises a side baffle (41), an upper guide shaft (42), a wire pulley (43), a connecting ring (44), a middle guide shaft (45), a lower guide shaft (46) and a traction hook body (47), wherein the upper guide shaft (42) is transversely embedded at the upper position of the inner side of the side baffle (41); the wire pulleys (43) are respectively sleeved at the left side and the right side of the outer surface of the upper guide shaft (42); the connecting lifting ring (44) is embedded in the middle of the outer surface of the upper guide shaft (42); the middle guide shaft (45) is movably embedded in the middle position inside the side baffle (41); the lower guide shaft (46) is movably embedded in the lower side position inside the side baffle (41); the traction hook main body (47) is movably sleeved on the outer surface of the lower guide shaft (46).

3. A high tensile rotary connector according to claim 2, wherein said adjustable ratchet adjustment lever assembly (5) comprises a ratchet holder (51), a limit screw (52), an adjusting rotary rod (53), a receiving tube (54), an anti-slip rubber sleeve (55) and an embedded combination tube (56), said limit screw (52) is screwed at the inner upper end position of the ratchet holder (51); the ratchet wheel clamping seat (51) is connected to the left end of the adjusting rotating rod (53) through a screw; the adjusting rotating rod (53) is in threaded connection with the left position inside the containing pipe (54); the antiskid rubber sleeve (55) is sleeved at the right side position of the outer surface of the accommodating pipe (54); the embedded combined pipe (56) is clamped at the lower end of the accommodating pipe (54).

4. A high-tensile rotary connector according to claim 1, wherein said low-friction high-strength shackle assembly (6) comprises a second cross bar (61), a limit stop (62), a shackle ring (63) and a sliding ball (64), said limit stop (62) being welded to an upper middle portion of the second cross bar (61); the disassembling ring (63) is movably sleeved at the middle position of the lower part of the outer side of the second transverse strut (61); the sliding ball (64) is embedded in the middle position of the inner side of the second cross support rod (61).

5. A high tensile rotary connector in accordance with claim 2, wherein the lower portion of said tension connecting wire rope (11) is passed through the inside of the connecting eye (44) and is riveted for fixing.

6. A high tensile rotary connector in accordance with claim 3, wherein said built-in combination tube (56) further comprises a sealing cap (561), a connection tube (562), a cleaning wiper pin (563) and an oil filling bladder (564), said sealing cap (561) being bonded to the right end of said connection tube (562); the cleaning scraping needle (563) is axially connected to the upper position of the left side of the sealing cap (561); the oil filling air bag (564) is glued at the lower position of the left side of the connecting pipe (562).

7. A high-tensile rotary connector according to claim 3, wherein the anti-slip rubber sleeve (55) is a cylindrical insulating silica gel sleeve; the outer surface of the anti-skid rubber sleeve (55) is carved with straight anti-skid lines.

8. The high-tensile rotary connector according to claim 6, wherein the connecting pipe (562) is a stainless steel pipe with a sealed left end; the outer surface of the connecting pipe (562) is provided with threads.

9. The high-tensile rotary connector according to claim 6, wherein the connection pipe (562) is screw-coupled inside the receiving pipe (54); the sealing cap (561) is buckled at the top end of the containing pipe (54).

10. The high-tensile rotary connector according to claim 1, wherein the method for using the high-tensile rotary connector comprises the following steps:

the method comprises the following steps: the connection of the fixed end: the anti-drop lifting hook (8) is hooked on a fixing frame pulled by a cable;

step two: threading and fixing of the cable: one end of the cable penetrates through the inner gap of the lower guide shaft (46) and the middle guide shaft (45) to form 8 and bypasses the outer surface of the wire pulley (43), and the top end of the cable forms a ring to be clamped on the traction hook main body (47);

step three: tensioning, connecting and braking: the adjusting rotating rod (53) is pressed downwards back and forth to drive the lifting gear (12) and the roller shaft rod (9) to rotate, so that the cable is tensioned and connected, and the connecting effect is achieved;

in the third step, the accommodating pipe 54 is screwed, so that the total length of the adjusting rotating rod (53) and the accommodating pipe (54) is prolonged, the anti-skid rubber sleeve 55 is held to play a role in skid resistance, and the lever principle is utilized to play a role in saving strength.