CN108471082B

CN108471082B - Lifting device for electric power construction

Info

Publication number: CN108471082B
Application number: CN201810328052.XA
Authority: CN
Inventors: 林淑妹
Original assignee: Rizhao Runlin Electric Appliance Co Ltd
Current assignee: Rizhao runlin Electric Appliance Co., Ltd
Priority date: 2018-04-12
Filing date: 2018-04-12
Publication date: 2020-11-20
Anticipated expiration: 2038-04-12
Also published as: CN108471082A

Abstract

The invention discloses a lifting device for electric power construction, which structurally comprises: the lifting device for the electric power construction is adjusted by the aid of the cable fixer, and the improved lifting device for the electric power construction can help installation and maintenance personnel to fix cables well and adjust directions freely, so that installation is more labor-saving and rapid.

Description

Lifting device for electric power construction

Technical Field

The invention relates to a lifting device for electric power construction, belonging to the field of lifting devices.

Background

Electric power engineering, i.e. engineering related to the production, transmission, distribution of electric energy, also broadly includes engineering where electricity is used as a power and energy source in a variety of fields, and can be understood as transmission and transformation business expansion engineering.

But prior art is because the inside copper core number of turns of power cable is many heavier, and the eminence is comparatively hard when overhauing the installation, and efficiency can't improve.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a lifting device for power construction, which aims to solve the problems that the number of turns of a copper core in a power cable is large, the maintenance and installation at a high position are labor-consuming, and the efficiency cannot be improved.

In order to achieve the purpose, the invention is realized by the following technical scheme: a lifting device for electric power construction structurally comprises: the cable fixing device comprises a cable fixing device, a protective fence, a platform, a folding arm, a movable rod, a chassis, a control box, a fixed foot support and a driving wheel, wherein the bottom welding part of the cable fixing device is arranged in the middle section of a guardrail on the right side of the protective fence, the bottom end of the protective fence is vertically embedded in round holes at four opposite angles of the platform, the folding arm is arranged at the bottom end of the platform and is mechanically connected with an internal driving structure of the chassis, the control box is fixed at the center of the outer wall on the right side of the chassis and is electrically connected with an internal sensor of the folding arm through a wire, the driving wheel is provided with four fixed at the left side and the right side of the chassis, the bottom of the fixed foot support is of a telescopic structure, the extending total height is higher than the distance between the chassis and the bottom surface, the cable fixing device is provided with a hand wheel, a gear set, a limit chain, spacing sprocket is installed in the left side of assembly pulley and is passed through the cable wire with the stopper and be connected, the gear at rotatory main shaft middle part is higher than to the not spacing condition position of stopper left end action arm, the kicking block swing joint of supporting seat left side and screens knob, the arm lock is fixed in hand round upper right corner and mechanical connection.

Further, hand round comprises rocker, the arm of force, main shaft, drive gear, conversion gear, output belt, conical gear, the rocker is fixed respectively in the smooth hole site of the arm of force bottom and in the anti-skidding hole site that the top has the insection with the main shaft, drive gear's external tooth and the external tooth intermeshing of conversion gear front end, the ring channel of conversion gear rear end passes through output belt and conical gear clearance fit, conical gear's external tooth and the left ratch swing joint of rotatory main shaft.

Further, the gear train comprises synchronous sprocket, chain, a gear, No. two gears, No. three gears, No. four gears, synchronous sprocket is a water flat line and hugs closely the left and right sides of chain inner wall with a gear axle center, a gear with fix No. two left gear swing joint at No. three gears, the transverse transmission arm and No. four gear U type inslot wall clearance fit of No. three gears.

Further, spacing sprocket comprises support, worm wheel, No. two chains, gear, tree-shaped support, No. two sprockets, spacing chain, fixed block, the worm crosses the insection on the top of support and right side and the external tooth intermeshing of worm wheel, the gear is fixed in the left middle section of spacing chain, the gear passes through No. two chains and is connected with worm wheel machinery, No. two sprockets are equipped with two and install the top at tree-shaped support mid way branch perpendicularly, the right-hand member welding of spacing chain is in the left side of fixed block outer wall, the cable wire swing joint of fixed block and assembly pulley.

Furthermore, the pulley block comprises a first pulley, a steel cable, a second pulley and a third pulley, the steel cable penetrates through the bottom of the vertically installed first pulley and bypasses the right side of the horizontally fixed second pulley roller, and the outer wall of the steel cable is in clearance fit with the two rollers of the third pulley.

Furthermore, the stopper comprises cable cover, reset spring, slide bar, activity roof, action arm, the bottom at reset spring center is installed perpendicularly to the cable cover, the slide bar is equipped with two and fixes the left and right sides and mechanical connection at the activity roof, the left end of activity roof passes through the bolt fastening at the right side port of action arm, the top at rotatory main shaft is fixed to the action arm level.

Furthermore, the rotating spindle is composed of an input taper rod, a support, a taper wheel, a spring and a shaft rod, the input taper rod is horizontally fixed on a base of the support, a straight tooth on the right side of the input taper rod is meshed with an outer tooth on the top of the taper wheel, the inner diameter of the spring is larger than the outer diameter of the shaft rod, and the input taper rod is mechanically connected with a hand-operated wheel on the left side of the input taper rod.

Further, the support frame comprises supporting roof, ball, track, axle sleeve, connecting rod, the ball evenly fix the upper and lower both sides of supporting roof and with track swing joint, the axle sleeve imbeds perpendicularly in the left side round hole of supporting roof, and interior inner wall and connecting rod mechanical connection, the external tooth at connecting rod top and the skewed tooth clearance fit of the left gear of arm lock.

Further, the screens knob comprises button piece, compression screw, support body, kicking block, the sleeve pipe at button piece center is run through to the left pole wall of compression screw, compression screw's external screw thread and support body left side thread block clearance fit, the left track lateral wall of support frame is hugged closely to the kicking block right wall.

Further, the arm lock comprises removal cone pulley, fixed arm lock, telescopic screw, chuck, activity arm lock, base, it installs in the left side of fixed arm lock and fixed with telescopic screw left side welding machine to remove the cone pulley, it is relative that the chuck inboard is the U type to the installation makes the top of activity arm lock and fixed arm lock, the bottom and the base top clearance fit of activity arm lock.

Advantageous effects

The cable fixer of the lifting device for electric power construction is fixed on a protective fence, pure mechanical operation is carried out through a hand-operated wheel, the adaptability is better, a rocker arm of the hand-operated wheel enables a main shaft to rotate to drive a driving gear, the conversion gear can enable power to further enable a conical gear to move through an output belt, the conical gear rotates, simultaneously, the conical wheel at the bottom of the rotating main shaft is pushed up under the action force of a spring to be buckled with the grains of a shaft lever for transmission, when a movable clamping arm of a clamping arm at the top is tightened with a clamping head at the top of the fixed clamping arm, the shaft lever at the bottom also rotates to gradually enable a joint of a cable to rotate outwards, when the clamping head reaches a preset force, a limit chain at the bottom enables a fixed block to move upwards gradually, then a steel cable is pulled to drive a top plate to move downwards to enable the conical wheel to move downwards to be separated from the power of, the track will support the roof card owner and prevent to revolve round under the effort of the kicking block of screens knob, also can loosen the direction easy to assemble that the screens knob freely adjusted the end of a thread simultaneously, and the screw thread of telescopic screw inner wall is comparatively intensive can provide the messenger chuck of auto-lock can not become flexible and make the cable drop.

According to the improved lifting device for power construction, the cable fixer is used for assisting in adjustment, the improved lifting device for power construction can help installation and maintenance personnel to fix the cable well, the direction can be adjusted freely, and the installation is more labor-saving and quicker.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of an appearance structure of a lifting device for electric power construction according to the present invention.

Fig. 2 is a schematic view of an internal structure of a lifting device for power construction according to the present invention.

Fig. 3 is a schematic diagram illustrating an internal detailed structure of a lifting device for power construction according to the present invention.

Fig. 4 is a schematic view of a transmission structure of a lifting device for electric power construction according to the present invention.

FIG. 5 is a schematic diagram of the structure A of FIG. 3 according to the present invention.

FIG. 6 is a schematic diagram of the structure B in FIG. 3 according to the present invention.

In the figure: the cable-fixing device comprises a cable-fixing device-1, a protective fence-2, a platform-3, a folding arm-4, a movable rod-5, a chassis-6, a control box-7, a fixed foot support-8, a driving wheel-9, a hand-operated wheel-101, a gear set-102, a limit chain wheel-103, a pulley block-104, a limit device-105, a rotary main shaft-106, a supporting seat-107, a clamping knob-108, a clamping arm-109, a rocker-1011, a force arm-1012, a main shaft-1013, a driving gear-1014, a conversion gear-1015, an output belt-1016, a bevel gear-1017, a synchronous chain wheel-1021, a chain-1022, a first gear-1023, a second gear-1024, a third gear-1025, a fourth gear-1026, a fourth gear-105, A bracket-1031, a worm-1032, a worm wheel-1033, a second chain-1034, a gear-1035, a tree-shaped bracket-1036, a second chain wheel-1037, a limit chain-1038, a fixed block-1039, a first pulley-1041, a steel cable-1042, a second pulley-1043, a third pulley-1044, a cable sleeve-1051, a reset spring-1052, a slide rod-1053, a movable top plate-1054, an action arm-1055, an input taper rod-1061, a support-1062, a taper wheel-1063, a spring-1064, a shaft rod-1065, a support top plate-1071, a rolling ball-1072, a track-1073, a shaft sleeve-1074, a connecting rod-1075, a button block-1081, a compression screw-1082, a frame-1083, a top block-1084, a moving taper wheel-1091, a gear-1035, a cable sleeve-, A fixed clamping arm-1092, a telescopic screw-1093, a chuck-1094, a movable clamping arm-1095 and a base-1096.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 6, the present invention provides a lifting device for power construction, comprising: the structure includes: cable fixer 1, protection rail 2, platform 3, folding arm 4, movable rod 5, chassis 6, control box 7, fixed heel brace 8, drive wheel 9, the middle section of protection rail 2 right side railing is welded to the bottom of cable fixer 1, the bottom of protecting rail 2 is nested perpendicularly in the round hole at four diagonal angles of platform 3, folding arm 4 is installed in the bottom of platform 3 and is connected with the internal drive structure machinery of chassis 6, control box 7 is fixed at the center of chassis 6 right side outer wall, is connected with folding arm 4 internal sensor electricity through the wire, drive wheel 9 is equipped with four and fixes the left and right sides in chassis 6, fixed heel brace 8 bottom is extending structure, and the extension overall height is higher than the distance of chassis 6 and bottom surface, cable fixer 1 is equipped with hand wheel 101, gear train 102, spacing sprocket 103, assembly pulley 104, Stopper 105, rotary spindle 106, supporting seat 107, screens knob 108, arm lock 109, the right side gear of hand round 101 with install at the left gear train 102 clearance fit of spacing sprocket 103, spacing sprocket 103 is installed in the left side of assembly pulley 104 and is passed through the cable wire with stopper 105 and be connected, the not spacing condition position of stopper 105 left end action arm is higher than the gear at rotary spindle 106 middle part, supporting seat 107 left side and the kicking block swing joint of screens knob 108, arm lock 109 is fixed in hand round 101 upper right corner and mechanical connection, hand round 101 comprises rocker 1011, arm of force 1012, main shaft 1013, drive gear 1014, conversion gear arm of force 1015, output belt 1016, conical gear 1017, rocker 1011 and main shaft 1013 are fixed respectively in the smooth hole site of 1012 bottom and the top has the anti-skidding hole site of insection, the external tooth of drive gear and the external tooth of conversion gear 1015 front end intermeshing, the annular groove at the rear end of the conversion gear 1015 is in clearance fit with the bevel gear 1017 through the output belt 1016, the external teeth of the bevel gear 1017 are movably connected with the rack bar at the left side of the rotating main shaft 106, the gear set 102 is composed of a synchronous chain wheel 1021, a chain 1022, a first gear 1023, a second gear 1024, a third gear 1025 and a fourth gear 1026, the synchronous chain wheel 1021 and the axis of the first gear 1023 are in a horizontal line and are tightly attached to the left side and the right side of the inner wall of the chain 1022, the first gear 1023 is movably connected with a second gear 1024 fixed at the left side of the third gear 1025, the transverse transmission arm of the third gear 1025 is in clearance fit with the inner wall of a U-shaped groove of the fourth gear 1026, the limit chain wheel 103 is composed of a bracket 1031, a worm 1032, a worm wheel 3, a second chain 1034, a gear 1035, a tree bracket 1036, a second chain 1038, a limit chain 1038 and a fixed block 1039, the worm wheel 1032 crosses the top of the bracket, the gear 1035 is fixed in the middle of the left side of a limit chain 1038, the gear 1035 is mechanically connected with a worm wheel 1033 through a second chain 1034, the second chain wheel 1037 is provided with two top ends vertically installed at the branches of the tree-shaped support 1036, the right end of the limit chain 1038 is welded on the left side of the outer wall of a fixed block 1039, the fixed block 1039 is movably connected with a steel cable of a pulley block 104, the pulley block 104 is composed of a first pulley 1041, a steel cable 1042, a second pulley 1043 and a third pulley 1044, the steel cable 1042 passes through the bottom of the vertically installed first pulley 1041 and bypasses the right side of the horizontally fixed second pulley 1043, the outer wall of the steel cable 1042 is in clearance fit with the two rollers of the third pulley 1044, the limiter 105 is composed of a cable sleeve 1051, a reset spring 1052, a sliding rod 1053, a movable top plate 1054 and an action arm 1055, the cable sleeve 1051 is vertically installed at the bottom of the, the slide bar 1053 is provided with two slide bars 1053 which are fixed at the left and right sides of the movable top plate 1054 and mechanically connected, the left end of the movable top plate 1054 is fixed at the right port of the action arm 1055 through bolts, the action arm 1055 is horizontally fixed at the top of the rotary main shaft 106, the rotary main shaft 106 is composed of an input taper rod 1061, a support 1062, a cone 1063, a spring 1064 and a shaft lever 1065, the input taper rod 1061 is horizontally fixed at the base of the support 1062, a straight tooth at the right side is engaged with an external tooth at the top of the cone 1063, the inner diameter of the spring 1064 is larger than the outer diameter of the shaft lever 1065, the input taper rod 1061 is mechanically connected with the left hand-operated wheel 101, the support frame 107 is composed of a support top plate 1071, a ball 1072, a track 1073, a shaft sleeve 1074 and a connecting rod 1075, the ball 1072 is uniformly fixed at the upper and lower sides of the support top plate 1071 and, the inner wall of the clamping arm is mechanically connected with a connecting rod 1075, the external teeth at the top of the connecting rod 1075 are in clearance fit with the helical teeth of the gear on the left side of the clamping arm 109, the blocking knob 108 is composed of a knob 1081, a compression screw 1082, a frame 1083 and a top block 1084, the rod wall at the left side of the compression screw 1082 penetrates through a sleeve at the center of the button block 1081, the external thread of the compression screw 1082 is in clearance fit with the thread block at the left side of the frame body 1083, the right wall of the jacking block 1084 is tightly attached to the side wall of the track on the left side of the support frame 107, the clamping arm 109 is composed of a movable cone pulley 1091, a fixed clamping arm 1092, a telescopic screw 1093, a clamping head 1094, a movable clamping arm 1095 and a base 1096, the movable cone pulley 1091 is arranged on the left side of the fixed clamping arm 1092 and fixed with the left welding machine of the telescopic screw 1093, the inner side of the chuck 1094 is opposite in a U shape, and the top ends of a movable clamping arm 1095 and a fixed clamping arm 1092 are arranged, and the bottom end of the movable clamping arm 1095 is in clearance fit with the top end of a base 1096.

The cable fixer 1 is fixed on the protective fence 2, pure mechanical operation is carried out through the hand-operated wheel 101, the adaptability is better, the rocker 1011 of the hand-operated wheel 101 rotates the power arm 1012 to enable the main shaft 1013 to rotate to drive the driving gear 1014 to enable the conversion gear 1015 to further enable power to further enable the conical gear 1017 to move through the output belt 1016, the conical gear 1017 rotates, simultaneously, the conical wheel 1063 at the bottom of the rotating main shaft 106 is pushed upwards under the action force of the spring 1064 to be buckled with the grains of the shaft rod 1065 for transmission, when the movable clamping arm 1095 at the top of the clamping arm 109 is tightened with the clamping head 1094 at the top of the fixed clamping arm 1092, the shaft rod 1065 at the bottom also rotates to gradually enable the joint of the cable to rotate outwards, when the clamping head 1094 reaches a preset force, the limiting chain 1038 at the bottom enables the fixed block 1039 to gradually move upwards, then the steel cable 1042 is pulled to enable the movable top plate 1054 to drive the action arm 1055 to press downwards, make arm lock 109 unable continuation rotation, track 1073 will support roof 1071 card owner and prevent to revolve round under the effort of kicking block 1084 of screens knob 108, the while also can loosen the direction easy to assemble that screens knob 108 freely adjusted the end of a thread, the screw thread of telescopic screw 1093 inner wall is comparatively intensive can provide the messenger chuck 1094 of auto-lock and can not become flexible and make the cable drop, elevating gear for the electric power construction after the improvement can help installation maintenance personnel with the fine fixed of cable, and can freely adjust the direction, it is more laborsaving swift to make the installation.

The worm 1032 is a gear which has one or more spiral teeth and is meshed with a worm wheel to form a staggered shaft gear pair, and the indexing curved surface of the gear can be a cylindrical surface, a conical surface or a circular surface and has four categories of an Archimedes worm, an involute worm, a normal straight profile worm and a conical surface enveloping cylindrical worm.

The structure and the principle of the lifting device for the power construction can be known by technicians of the technical staff or can be known by a conventional experimental method, the lifting device for the power construction solves the problem that the efficiency cannot be improved due to the fact that the number of turns of the copper core in the power cable is large, labor is wasted when the power cable is overhauled and installed at a high position, and the improved lifting device for the power construction can help installation and maintenance staff to fix the cable well and can freely adjust the direction through the mutual combination of the parts.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A lifting device for electric power construction structurally comprises: cable fixer (1), protection rail (2), platform (3), folding arm (4), movable rod (5), chassis (6), control box (7), fixed heel brace (8), drive wheel (9), its characterized in that:

the bottom of the cable fixer (1) is welded to the middle section of a railing on the right side of the protective fence (2), the bottom end of the protective fence (2) is vertically nested in round holes in four opposite angles of the platform (3), the folding arm (4) is installed at the bottom end of the platform (3) and is mechanically connected with an internal driving structure of the chassis (6), the control box (7) is fixed in the center of the outer wall on the right side of the chassis (6) and is electrically connected with an internal sensor of the folding arm (4) through a wire, the driving wheel (9) is provided with four parts which are fixed on the left side and the right side of the chassis (6), the bottom of the fixed foot support (8) is of a telescopic structure, and the extending total height of the fixed foot support is higher than;

the cable fixing device (1) is provided with a hand-operated wheel (101), a gear set (102), a limiting chain wheel (103), a pulley block (104), a limiting device (105), a rotating main shaft (106), a supporting seat (107), a clamping knob (108) and a clamping arm (109), a right gear of the hand-operated wheel (101) is in clearance fit with the gear set (102) arranged on the left side of the limiting chain wheel (103), the limiting chain wheel (103) is arranged on the left side of the pulley block (104) and connected with the limiting device (105) through a steel cable, the position of the non-limiting condition of a left end action arm of the limiting device (105) is higher than a gear in the middle of the rotating main shaft (106), the left side of the supporting seat (107) is movably connected with a jacking block of the clamping knob (108), and the clamping arm (109) is fixed at the;

the hand-operated wheel (101) consists of a rocker (1011), a force arm (1012), a main shaft (1013), a driving gear (1014), a conversion gear (1015), an output belt (1016) and a conical gear (1017), wherein the rocker (1011) and the main shaft (1013) are respectively fixed in a smooth hole at the bottom end of the force arm (1012) and an anti-skid hole with a toothed pattern at the top end, external teeth of the driving gear (1014) are meshed with external teeth at the front end of the conversion gear (1015), an annular groove at the rear end of the conversion gear (1015) is in clearance fit with the conical gear (1017) through the output belt (1016), and the external teeth of the conical gear (1017) are movably connected with a toothed bar on the left side of the rotating main shaft (106);

the gear set (102) consists of a synchronous chain wheel (1021), a chain (1022), a first gear (1023), a second gear (1024), a third gear (1025) and a fourth gear (1026), the synchronous chain wheel (1021) and the axle center of the first gear (1023) are in a horizontal line and tightly attached to the left side and the right side of the inner wall of the chain (1022), the first gear (1023) is movably connected with the second gear (1024) fixed on the left side of the third gear (1025), and a transverse transmission arm of the third gear (1025) is in clearance fit with the inner wall of a U-shaped groove of the fourth gear (1026);

the limiting chain wheel (103) consists of a bracket (1031), a worm (1032), a worm wheel (1033), a second chain (1034), a gear (1035), a tree-shaped bracket (1036), a second chain wheel (1037), a limiting chain (1038) and a fixing block (1039), the worm (1032) penetrates through the top of the bracket (1031), the right-side insection of the worm is meshed with the outer teeth of the worm wheel (1033), the gear (1035) is fixed to the middle section of the left side of the limiting chain (1038), the gear (1035) is mechanically connected with the worm wheel (1033) through the second chain (1034), the second chain wheel (1037) is provided with two top ends which are vertically arranged at the top ends of middle branches of the tree-shaped bracket (1036), the right end of the limiting chain (1038) is welded to the left side of the outer wall of the fixing block (1039), and the fixing block (1039) is movably connected with;

the pulley block (104) consists of a first pulley (1041), a steel cable (1042), a second pulley (1043) and a third pulley (1044), the steel cable (1042) passes through the bottom of the vertically mounted first pulley (1041) and bypasses the right side of the horizontally fixed second pulley (1043) pulley, and the outer wall of the steel cable (1042) is in clearance fit with the two pulleys of the third pulley (1044);

the limiter (105) comprises a cable sleeve (1051), a reset spring (1052), a sliding rod (1053), a movable top plate (1054) and an action arm (1055), wherein the cable sleeve (1051) is vertically installed at the bottom of the center of the reset spring (1052), the sliding rod (1053) is provided with two mechanical connectors which are fixed at the left side and the right side of the movable top plate (1054), the left end of the movable top plate (1054) is fixed at the right port of the action arm (1055) through a bolt, and the action arm (1055) is horizontally fixed at the top of the rotating main shaft (106);

the rotating main shaft (106) consists of an input taper rod (1061), a support (1062), a taper wheel (1063), a spring (1064) and a shaft lever (1065), the input taper rod (1061) is horizontally fixed on the base of the support (1062), a straight tooth on the right side is meshed with an external tooth on the top of the taper wheel (1063), the inner diameter of the spring (1064) is larger than the outer diameter of the shaft lever (1065), and the input taper rod (1061) is mechanically connected with a hand crank wheel (101) on the left side;

the supporting frame (107) is composed of a supporting top plate (1071), rolling balls (1072), a track (1073), a shaft sleeve (1074) and a connecting rod (1075), the rolling balls (1072) are uniformly fixed on the upper side and the lower side of the supporting top plate (1071) and movably connected with the track (1073), the shaft sleeve (1074) is vertically embedded into a left circular hole of the supporting top plate (1071), the inner wall of the shaft sleeve is mechanically connected with the connecting rod (1075), and external teeth at the top of the connecting rod (1075) are in clearance fit with oblique teeth of a gear on the left side of the clamping arm (109);

the clamping knob (108) is composed of a button block (1081), a compression screw (1082), a frame body (1083) and a top block (1084), a rod wall on the left side of the compression screw (1082) penetrates through a sleeve in the center of the button block (1081), external threads of the compression screw (1082) are in clearance fit with a thread block on the left side of the frame body (1083), and the right wall of the top block (1084) is tightly attached to a track side wall on the left side of the support frame (107);

the clamping arm (109) consists of a movable cone pulley (1091), a fixed clamping arm (1092), a telescopic screw (1093), a chuck (1094), a movable clamping arm (1095) and a base (1096), wherein the movable cone pulley (1091) is installed on the left side of the fixed clamping arm (1092) and fixed with a welding machine on the left side of the telescopic screw (1093), the inner side of the chuck (1094) is opposite to the inner side of the chuck in a U shape, the top ends of the movable clamping arm (1095) and the fixed clamping arm (1092) are installed, and the bottom end of the movable clamping arm (1095) is in clearance fit with the top end of the base (1096);

when the clamping knob is used, pure mechanical operation is carried out through the hand-operated wheel, the rocker-rod rotating force arm of the hand-operated wheel enables the spindle to rotate to drive the driving gear to enable the conversion gear to further enable the conical gear to move through the output belt, the conical gear rotates, the conical wheel at the bottom of the rotating spindle is jacked up under the action of the spring to be buckled with the grains of the shaft rod to carry out transmission, when the movable clamping arm at the top is tightened with the chuck at the top end of the fixed clamping arm, the shaft rod at the bottom also rotates to gradually enable the joint of the cable to rotate outwards, when the chuck reaches a preset force, the limiting chain at the bottom enables the fixed block to gradually move upwards, then the movable top plate is pulled to drive the action arm to press downwards to enable the conical wheel to move downwards to be separated from the power of the shaft rod, the clamping arm cannot rotate continuously, the track supports the top plate to be blocked by the top plate under the action force of the jacking block of the clamping knob, the threads on the inner wall of the telescopic screw rod are dense, self-locking can be provided, and the clamping head cannot loosen to enable the cable to fall off.