CN116183982A - Clamp-on ammeter - Google Patents

Clamp-on ammeter Download PDF

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Publication number
CN116183982A
CN116183982A CN202310458044.8A CN202310458044A CN116183982A CN 116183982 A CN116183982 A CN 116183982A CN 202310458044 A CN202310458044 A CN 202310458044A CN 116183982 A CN116183982 A CN 116183982A
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CN
China
Prior art keywords
iron core
ammeter
centering
fixedly connected
connecting rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202310458044.8A
Other languages
Chinese (zh)
Other versions
CN116183982B (en
Inventor
黄裕财
罗永润
王川军
何智坚
李文仕
陆思乐
罗煜
潘伟进
石俊发
洪锐媛
李希妍
王乂玄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Original Assignee
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Foshan Power Supply Bureau of Guangdong Power Grid Corp filed Critical Foshan Power Supply Bureau of Guangdong Power Grid Corp
Priority to CN202310458044.8A priority Critical patent/CN116183982B/en
Publication of CN116183982A publication Critical patent/CN116183982A/en
Application granted granted Critical
Publication of CN116183982B publication Critical patent/CN116183982B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44Constructional details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/34Handled filamentary material electric cords or electric power cables

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

The application discloses clip-on ammeter includes: the ammeter comprises an ammeter body, wherein an extension rod is detachably connected to the bottom of the ammeter body, an opening and closing iron core is arranged at the top of the ammeter body, a mutual inductance coil is arranged on the opening and closing iron core, the opening and closing iron core comprises a first iron core fixedly arranged and a second iron core rotatably arranged, a winding component is arranged at the bottom of the first iron core, an opening and closing handle is fixedly connected to one end, far away from the first iron core, of the second iron core, a driving component and a pulling component are arranged on the extension rod, and the driving component is in transmission connection with the winding component and used for driving the winding component to rotate so as to achieve the purpose of winding; the pulling component is connected with the opening and closing handle through a steel wire pull rope and is used for controlling the opening and closing of the opening and closing iron core. The invention can enable operators to finish measurement work on the ground without climbing work, and has an automatic winding function, thereby being more convenient to use.

Description

Clamp-on ammeter
Technical Field
The application relates to the technical field of ampere meters, in particular to a clamp-on ampere meter.
Background
Currently, the following disadvantages exist for low voltage line detection that is relatively high from the ground: 1. the climbing operation is needed, and the risk of falling at a high place exists for operators; 2. for measuring the current below 5A, the winding measurement is needed for measuring accurately, but the winding of the conventional clamp ammeter needs manual winding, and is inconvenient to use.
Disclosure of Invention
The embodiment of the application provides a pincerlike ammeter, makes operating personnel accomplish measurement work on ground, need not to climb the altitude operation, has automatic wire winding function simultaneously, and it is more convenient to use.
In view of this, the present application provides a clamp-on ammeter comprising: an ammeter body;
an extension rod is detachably connected to the bottom of the ammeter body;
an open-close iron core is arranged at the top of the ammeter body;
the open-close iron core is provided with a mutual inductance coil;
the open-close iron core comprises a first iron core fixedly arranged and a second iron core rotatably arranged;
a winding component is arranged at the bottom of the first iron core;
an opening and closing handle is fixedly connected to one end, far away from the first iron core, of the second iron core;
the extension rod is provided with a driving component and a pulling component;
the driving component is in transmission connection with the winding component and is used for driving the winding component to rotate so as to achieve the purpose of winding;
the pulling assembly is connected with the opening and closing handle through a steel wire pull rope and is used for controlling the opening and closing of the opening and closing iron core.
Optionally, a centering component is arranged between the first iron core and the second iron core;
the centering assembly comprises a first centering piece arranged on the first iron core and a second centering piece arranged on the second iron core;
the first centering piece comprises a rotating sleeve, a first supporting rod and a first centering radian plate, wherein the rotating sleeve is rotationally connected with the cylinder part at the lower end of the first iron core, the first supporting rod is fixedly connected with the rotating sleeve, and the first centering radian plate is fixedly connected with the first supporting rod;
the second centering piece comprises a second supporting rod fixedly arranged on the inner side of the second iron core and a second centering radian plate fixedly connected with the second supporting rod;
the matching part of the second centering radian plate and the first centering radian plate is provided with a groove for accommodating the end part of the first centering radian plate, so that the two centering radian plates are arranged in a crossed mode.
Optionally, the winding assembly includes the first centering member and a rotating assembly fixedly connected to the first centering member;
the rotating assembly comprises a rotating seat fixed at the lower end of the rotating sleeve and a rotating shaft in rotating connection with the ammeter body;
an internal gear disc is arranged in the rotating seat;
a flat gear is fixedly arranged at the upper end of the rotating shaft;
the flat gear is in meshed connection with the internal gear disk;
the lower end of the rotating shaft is fixedly connected with a first knob.
Optionally, the driving assembly comprises a tube body fixedly connected with the extension rod and a driving shaft rotatably connected with the tube body and arranged inside the tube body;
a first bevel gear is arranged between the rotating shaft and the first knob;
the upper end of the first bevel gear is fixedly connected with the lower end of the rotating shaft;
the lower end of the first bevel gear is fixedly connected with the first knob;
the upper end of the driving shaft is provided with a second bevel gear;
the second bevel gear is in meshed connection with the first bevel gear;
the lower end of the driving shaft extends out of the tube body and is fixedly connected with a second knob.
Optionally, a docking assembly is arranged at the bottom of the ammeter body;
the pulling assembly is connected with the steel wire stay cord through the butt joint assembly.
Optionally, the pulling component comprises a cylinder fixedly arranged at one side of the extension rod and a first end cover fixedly arranged at the lower end of the cylinder;
the middle part of the upper end of the cylinder body is connected with a first connecting rod in a sliding manner;
the middle part of the first end cover is connected with a second connecting rod in a sliding way;
the lower end of the second connecting rod is fixedly connected with a first pull ring;
the first connecting rod is connected with the second connecting rod through a steel wire rope.
Optionally, the docking assembly includes a third link;
a sliding hole is formed in the bottom of the ammeter body;
a limiting ring is fixedly arranged at the top of the sliding hole;
the third connecting rod is positioned in the sliding hole and is in sliding connection with the sliding hole;
one end of the steel wire stay cord is connected with the opening and closing handle, and the other end of the steel wire stay cord is connected with the upper end of the third connecting rod;
the bottom of the third connecting rod is provided with a butt joint block and a butt joint sleeve matched with the butt joint block;
the butt joint block is fixedly connected with the lower end of the third connecting rod;
the upper end of the first connecting rod is fixedly connected with the lower end of the butt joint sleeve;
transverse stepped holes are symmetrically formed in two sides of the butt joint sleeve;
a pull rod is arranged in the stepped hole;
the outer end of the pull rod is fixedly provided with a pull head;
the pull head is provided with a second pull ring;
the pull rod is sleeved with a first spring;
the first spring is positioned in the large-diameter section of the stepped hole;
one end of the pull rod, which is far away from the pull head, is provided with a limiting flange for limiting the first spring;
a second spring is sleeved on the first connecting rod;
one end of the second spring is connected with the lower surface of the butt joint sleeve, and the other end of the second spring is connected with the upper surface of the cylinder;
a third spring is sleeved on the third connecting rod;
one end of the third spring is connected with the lower surface of the ammeter body, and the other end of the third spring is connected with the upper surface of the butt joint block.
Optionally, the ammeter body comprises a housing and a circuit board arranged in the housing;
the shell is provided with a display screen, a gear knob, keys and jacks for connecting the extension rods.
Optionally, the housing comprises a first housing and a second housing;
the first shell is detachably connected with the second shell through a plug-in assembly;
the jack is arranged at the bottom of the first shell;
the display screen, the gear knob and the keys are all arranged on the second shell;
the circuit board is arranged in the second shell;
a socket is fixedly arranged on one side of the first shell, which is close to the second shell;
the circuit board is electrically connected with the socket through an extension lead;
and the rear side of the second shell is provided with a clamping sleeve for clamping the extension rod.
Optionally, the plugging component comprises a clamping groove arranged on the first shell, a pressing spring piece arranged in the clamping groove, a pressing block arranged on the outer side of the pressing spring piece and a plugging head arranged at the side end of the second shell and corresponding to the pressing spring piece;
the plug connector is clamped with the clamping groove.
From the above technical solutions, the embodiments of the present application have the following advantages: this pincerlike ampere meter is through setting up the extension pole that can dismantle the connection to be provided with pulling subassembly on the extension pole, can control the opening and shutting of iron core that opens and shuts on ground, realize the electric current measurement work of eminence electric wire, need not climb to the eminence and measure, convenient to use and security are high, and, still be provided with wire winding subassembly in first iron core bottom, be provided with simultaneously on the extension pole and be used for driving wire winding subassembly with electric wire according to predetermined number of turns winding drive assembly, do not need manual winding, especially when measuring the eminence low current electric wire, do not need to climb to the eminence wire winding and measure, it is more convenient to use.
Drawings
FIG. 1 is a front view of a clamp-on ammeter in an embodiment of the present application;
FIG. 2 is a schematic diagram of a clamp ammeter according to an embodiment of the present application;
FIG. 3 is a state diagram of a clamp ammeter according to an embodiment of the present application when measuring the current of a wire at a height;
fig. 4 is a state diagram of the clamp ammeter in the embodiment of the present application when the open-close iron core is opened;
FIG. 5 is a schematic view of a connection structure between a second housing and an extension rod according to an embodiment of the present disclosure;
FIG. 6 is an enlarged detail view of portion A of FIG. 2;
FIG. 7 is a schematic diagram of a winding assembly according to an embodiment of the present disclosure;
FIG. 8 is a schematic structural view of a second centering member according to an embodiment of the present application;
FIG. 9 is a schematic diagram of a connection structure of a driving assembly according to an embodiment of the present application;
FIG. 10 is a bottom view of a connection structure of the guard base according to the embodiment of the present application;
FIG. 11 is a schematic view of a clamp ammeter according to an embodiment of the present application with the extension bar removed;
FIG. 12 is a schematic view of the connection between the first housing and the second housing in the embodiment of the present application;
FIG. 13 is an enlarged detail view of portion B of FIG. 2;
FIG. 14 is a schematic view of a pulling assembly according to an embodiment of the present application;
wherein, the reference numerals are as follows:
1. a first shell, 2, a second shell, 3, a first iron core, 4, a rotating component, 41, a rotating seat, 42, an internal gear disk, 43, a flat gear, 44, a rotating shaft, 45, a first bevel gear, 46, a first knob, 5, a protective seat, 6, a second centering piece, 61, a second supporting rod, 62, a second centering radian plate, 7, a first centering piece, 71, a rotating sleeve, 72, a first supporting rod, 73, a first centering radian plate, 8, a butting component, 81, a butting sleeve, 82, a pull head, 83, a second pull ring, 84, a limiting flange, 85, a first spring, 86, a pull rod, 87, a butting block, 88, second springs, 89, first connecting rod, 810, third springs, 811, third connecting rod, 812, stop collar, 9, pulling assembly, 91, cylinder, 92, first end cap, 93, second connecting rod, 94, first pull ring, 10, driving assembly, 101, tube, 102, driving shaft, 103, second bevel gear, 104, cover plate, 105, second end cap, 106, second knob, 11, extension rod, 12, opening and closing handle, 13, locking bolt, 14, plug, 15, ferrule, 16, push down shell fragment, 17, press block, 18, socket, 19, extension wire, 20, second iron core.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will clearly and completely describe the technical solution in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
An embodiment of a clamp-on ammeter is provided, and reference is made specifically to fig. 1.
The clamp-on ammeter in this embodiment includes: the ammeter comprises an ammeter body, wherein an extension rod 11 is detachably connected to the bottom of the ammeter body, an opening and closing iron core is arranged at the top of the ammeter body, a mutual inductance coil is arranged on the opening and closing iron core, the opening and closing iron core comprises a first iron core 3 fixedly arranged and a second iron core 20 rotatably arranged, a winding assembly is arranged at the bottom of the first iron core 3, an opening and closing handle 12 is fixedly connected to one end, far away from the first iron core 3, of the second iron core 20, a driving assembly 10 and a pulling assembly 9 are arranged on the extension rod 11, and the driving assembly 10 is in transmission connection with the winding assembly and used for driving the winding assembly to rotate so as to achieve the purpose of winding; the pulling assembly 9 is connected with the opening and closing handle 12 through a steel wire pull rope and is used for controlling the opening and closing of the opening and closing iron core.
It should be noted that: this pincerlike ampere meter is through setting up the extension pole 11 that can dismantle the connection to be provided with pulling subassembly 9 on extension pole 11, can control the opening and shutting of iron core that opens and shuts on ground, realize the electric current measurement work of eminence electric wire, need not climb to the eminence and measure, convenient to use and security are high, and, still be provided with wire winding subassembly in first iron core 3 bottom, be provided with simultaneously on extension pole 11 and be used for driving wire winding subassembly with electric wire according to predetermined number of turns winding drive assembly 10, need not manual winding, especially when measuring the eminence low current electric wire, need not climb to the eminence wire winding and measure, it is more convenient to use.
The foregoing is a first embodiment of a clamp ammeter provided in the embodiments of the present application, and the following is a second embodiment of a clamp ammeter provided in the embodiments of the present application, and refer to fig. 1 to 14 specifically.
The clamp-on ammeter in this embodiment includes: the ammeter comprises an ammeter body, wherein an extension rod 11 is detachably connected to the bottom of the ammeter body, an opening and closing iron core is arranged at the top of the ammeter body, a mutual inductance coil is arranged on the opening and closing iron core, the opening and closing iron core comprises a first iron core 3 fixedly arranged and a second iron core 20 rotatably arranged, a winding assembly is arranged at the bottom of the first iron core 3, one end, far away from the first iron core 3, of the second iron core 20 is fixedly connected with an opening and closing handle 12, a driving assembly 10 and a pulling assembly 9 are arranged on the extension rod 11, the driving assembly 10 is in transmission connection with the winding assembly, and when a high-position low-current wire is measured, the winding assembly can be driven by the driving assembly 10, so that the winding assembly rotates, and the purpose of winding is achieved; the pulling assembly 9 is connected with the opening and closing handle 12 through a steel wire pull rope and is used for controlling the opening and closing of the opening and closing iron core.
The centering assembly comprises a first centering piece 7 arranged on the first iron core 3 and a second centering piece 6 arranged on the second iron core 20, the first centering piece 7 comprises a rotating sleeve 71 which is rotationally connected with the lower end cylinder part of the first iron core 3, a first supporting rod 72 fixedly connected with the rotating sleeve 71 and a first centering radian plate 73 fixedly connected with the first supporting rod 72, the second centering piece 6 comprises a second supporting rod 61 fixedly arranged on the inner side of the second iron core 20 and a second centering radian plate 62 fixedly connected with the second supporting rod 61, and a groove for accommodating the end part of the first centering radian plate 73 is formed in the matching part of the second centering radian plate 62 and the first centering radian plate 73 so as to realize the cross arrangement of the first centering radian plate and the second centering radian plate.
It should be noted that: through setting up centering subassembly, can be with the electric wire constraint that awaits measuring in the middle part of opening and shutting the iron core, guarantee measurement accuracy, reduce measuring error as far as possible.
The winding assembly comprises a first centering piece 7 and a rotating assembly 4 fixedly connected with the first centering piece 7, the rotating assembly 4 comprises a rotating seat 41 fixed at the lower end of a rotating sleeve 71 and a rotating shaft 44 rotatably connected with the ampere meter body, an internal gear disk 42 is arranged in the rotating seat 41, a flat gear 43 is fixedly arranged at the upper end of the rotating shaft 44, the flat gear 43 is meshed with the internal gear disk 42, and a first knob 46 is fixedly connected at the lower end of the rotating shaft 44.
It should be noted that: when the electric wire winding device is used, the first knob 46 is rotated to enable the rotating shaft 44 to drive the flat gear 43 to rotate, the rotating seat 41 and the rotating sleeve 71 are driven to synchronously rotate through the internal gear disk 42, at the moment, the rotating sleeve 71 can drive the first centering radian plate 73 to rotate around the first iron core 3, then the electric wire is wound on the first centering radian plate 73 and the first iron core 3, after winding is completed, the first knob 46 is stopped rotating, and the electric wire with low current at a high position can be measured, so that the operation is simple and the use is convenient.
The driving assembly 10 comprises a tube body 101 fixedly connected with the extension rod 11 and a driving shaft 102 arranged inside the tube body 101 and rotationally connected with the tube body 101, a first bevel gear 45 is arranged between the rotating shaft 44 and the first knob 46, the upper end of the first bevel gear 45 is fixedly connected with the lower end of the rotating shaft 44, the lower end of the first bevel gear 45 is fixedly connected with the first knob 46, a second bevel gear 103 is arranged at the upper end of the driving shaft 102, the second bevel gear 103 is meshed and connected with the first bevel gear 45, and the lower end of the driving shaft 102 extends out of the tube body 101 and is fixedly connected with a second knob 106. Specifically, the upper end fixedly connected with apron 104 of body 101, one side and extension rod 11 fixed connection of apron 104, ampere meter body lower extreme is provided with protection seat 5, and apron 104 is fixed at protection seat 5 lower extreme, and first bevel gear 45 and second bevel gear 103 all are located protection seat 5, and body 101 lower extreme is provided with second end cover 105.
It should be noted that: during the use, through rotating second knob 106, can drive second bevel gear 103 through drive shaft 102 and rotate, second bevel gear 103 drives first bevel gear 45 and rotate, realizes the drive to rotating assembly 4, and then drives wire winding subassembly for when using extension rod 11 to high low-current wire measurement, need not climb to the high wire winding and measure, convenient operation uses.
The ammeter body bottom is provided with docking subassembly 8, and pulling subassembly 9 is connected with the wire stay cord through docking subassembly 8, and docking subassembly 8 can be quick connect wire stay cord and pulling subassembly 9, makes the iron core that opens and shuts when realizing measuring the electric current of high electric wire open and shut can be quick, accomplishes measurement work, does not need to climb to the eminence and measures, and the operation of being convenient for is high security.
The pulling assembly 9 comprises a cylinder 91 fixedly arranged on one side of the extension rod 11 and a first end cover 92 fixedly arranged at the lower end of the cylinder 91, a first connecting rod 89 is slidably connected in the middle of the upper end of the cylinder 91, a second connecting rod 93 is slidably connected in the middle of the first end cover 92, a first pull ring 94 is fixedly connected to the lower end of the second connecting rod 93, and the first connecting rod 89 is connected with the second connecting rod 93 through a steel wire rope.
The butt joint assembly 8 comprises a third connecting rod 811, a sliding hole is formed in the bottom of the ammeter body, a limiting ring 812 is fixedly arranged at the top of the sliding hole, and the third connecting rod 811 is positioned in the sliding hole and is in sliding connection with the sliding hole; one end of the steel wire stay cord is connected with the opening and closing handle 12, and the other end is connected with the upper end of the third connecting rod 811; the bottom of the third connecting rod 811 is provided with a butt joint block 87 and a butt joint sleeve 81 matched with the butt joint block 87, the butt joint block 87 is positioned in the butt joint sleeve 81, the butt joint block 87 is fixedly connected with the lower end of the third connecting rod 811, the upper end of a first connecting rod 89 is fixedly connected with the lower end of the butt joint sleeve 81, transverse stepped holes are symmetrically formed in two sides of the butt joint sleeve 81, a pull rod 86 is arranged in each stepped hole, the outer end of each pull rod 86 is fixedly provided with a pull head 82, a second pull ring 83 is arranged on each pull head 82, a first spring 85 is sleeved on each pull rod 86, the first spring 85 is positioned in a large-diameter section of each stepped hole, a limit flange 84 for limiting the first spring 85 is arranged at one end of each pull rod 86, which is far away from the pull heads 82, a second spring 88 is sleeved on each first connecting rod 89, one end of each second spring 88 is connected with the lower surface of the butt joint sleeve 81, and the other end of each second spring 88 is connected with the upper surface of the cylinder 91; the third connecting rod 811 is provided with a third spring 810 in a sleeved manner, one end of the third spring 810 is connected with the lower surface of the ammeter body, and the other end is connected with the upper surface of the butt joint block 87.
It should be noted that: after the butt joint block 87 is inserted into the butt joint sleeve 81, the inner side end of the pull rod 86 can extend out to limit the butt joint block 87, so that the quick connection of the pulling assembly 9 and the butt joint block 87 is realized, when the second pull ring 83 is pulled, the butt joint sleeve 81 and the butt joint block 87 can move downwards together, at the moment, the steel wire pull rope at the upper end of the third connecting rod 811 pulls the opening and closing handle 12, so that the opening and closing iron core is opened for detecting the current of a high-position electric wire, the opening and closing iron core can be opened and closed quickly when the current of the high-position electric wire is measured, the measurement work is completed, the measurement is not needed to be carried out at a high position, the operation is convenient, and the safety is high.
The ammeter body comprises a shell and a circuit board arranged in the shell, wherein a display screen, a gear knob, keys and jacks for connecting the extension rod 11 are arranged on the shell.
The shell includes first casing 1 and second casing 2, and first casing 1 passes through plug assembly and can dismantle with second casing 2 and be connected, and the jack setting is in first casing 1 bottom, and display screen, gear knob and button all set up on second casing 2, and the circuit board setting is in second casing 2, and first casing 1 is close to the fixed socket 18 that is provided with in one side of second casing 2, and the circuit board passes through extension wire 19 and is connected with socket 18 electricity, and second casing 2 rear side is provided with the cutting ferrule 15 that is used for with extension rod 11 joint.
It should be noted that: the first casing 1 is connected with the second casing 2 through the cooperation of grafting subassembly, can realize quick installation and separation, and the second casing 2 after the separation can carry out the joint through cutting ferrule 15 and extension rod 11 that its rear side set up, conveniently adjusts and set up the ampere meter, and it is more convenient to use.
Specifically, extension rod 11 inserts in the jack that first casing 1 lower extreme was reserved to carry out the fixed to extension rod 11 through the lock bolt 13 that first casing 1 side and extension rod 11 correspond the department setting, pulling subassembly 9 and drive assembly 10 are fixed in the side of extension rod 11 through the fixed block respectively, realize pulling subassembly 9 and docking subassembly 8 and drive assembly 10 and wire winding subassembly's quick connection when extension rod 11 and first casing 1 butt joint installation, convenient operation uses.
The plug-in component comprises a clamping groove arranged on the first shell 1, a pressing spring piece 16 arranged in the clamping groove, a pressing block 17 arranged outside the pressing spring piece 16, and a plug-in connector 14 arranged at the side end of the second shell 2 and corresponding to the pressing spring piece 16, wherein the plug-in connector 14 is in clamping connection with the clamping groove.
It should be noted that: the plug 14 is inserted into the clamping groove, the bulge at the end part of the plug 14 is clamped in the clamping groove, the first shell 1 and the second shell 2 are fixed together, and when the plug 14 needs to be separated, the pressing spring piece 16 can be pressed down, so that the plug 14 is separated from the clamping groove, and the separation of the first shell 1 and the second shell 2 is realized.
Specifically, the pulley block is arranged at the inner side of the first shell 1 corresponding to the opening and closing handle 12, so that the direction of the steel wire stay cord is changed, and the steel wire stay cord has a better working route.
The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. A clamp-on ammeter, comprising: an ammeter body;
an extension rod is detachably connected to the bottom of the ammeter body;
an open-close iron core is arranged at the top of the ammeter body;
the open-close iron core is provided with a mutual inductance coil;
the open-close iron core comprises a first iron core fixedly arranged and a second iron core rotatably arranged;
a winding component is arranged at the bottom of the first iron core;
an opening and closing handle is fixedly connected to one end, far away from the first iron core, of the second iron core;
the extension rod is provided with a driving component and a pulling component;
the driving component is in transmission connection with the winding component and is used for driving the winding component to rotate so as to achieve the purpose of winding;
the pulling assembly is connected with the opening and closing handle through a steel wire pull rope and is used for controlling the opening and closing of the opening and closing iron core.
2. The clamp-on ammeter according to claim 1, wherein a centering assembly is provided between the first core and the second core;
the centering assembly comprises a first centering piece arranged on the first iron core and a second centering piece arranged on the second iron core;
the first centering piece comprises a rotating sleeve, a first supporting rod and a first centering radian plate, wherein the rotating sleeve is rotationally connected with the cylinder part at the lower end of the first iron core, the first supporting rod is fixedly connected with the rotating sleeve, and the first centering radian plate is fixedly connected with the first supporting rod;
the second centering piece comprises a second supporting rod fixedly arranged on the inner side of the second iron core and a second centering radian plate fixedly connected with the second supporting rod;
the matching part of the second centering radian plate and the first centering radian plate is provided with a groove for accommodating the end part of the first centering radian plate, so that the two centering radian plates are arranged in a crossed mode.
3. The clamp-on ammeter of claim 2 wherein the wire-wound assembly includes the first centering member and a rotating assembly fixedly connected to the first centering member;
the rotating assembly comprises a rotating seat fixed at the lower end of the rotating sleeve and a rotating shaft in rotating connection with the ammeter body;
an internal gear disc is arranged in the rotating seat;
a flat gear is fixedly arranged at the upper end of the rotating shaft;
the flat gear is in meshed connection with the internal gear disk;
the lower end of the rotating shaft is fixedly connected with a first knob.
4. A clamp ammeter according to claim 3 wherein the drive assembly comprises a tube fixedly connected to the extension rod and a drive shaft rotatably connected to the tube disposed within the tube;
a first bevel gear is arranged between the rotating shaft and the first knob;
the upper end of the first bevel gear is fixedly connected with the lower end of the rotating shaft;
the lower end of the first bevel gear is fixedly connected with the first knob;
the upper end of the driving shaft is provided with a second bevel gear;
the second bevel gear is in meshed connection with the first bevel gear;
the lower end of the driving shaft extends out of the tube body and is fixedly connected with a second knob.
5. The clamp-on ammeter according to claim 1, wherein a docking assembly is provided at the bottom of the ammeter body;
the pulling assembly is connected with the steel wire stay cord through the butt joint assembly.
6. The clamp-on ammeter according to claim 5 wherein the pulling assembly comprises a barrel fixedly disposed on one side of the extension rod and a first end cap fixedly disposed at a lower end of the barrel;
the middle part of the upper end of the cylinder body is connected with a first connecting rod in a sliding manner;
the middle part of the first end cover is connected with a second connecting rod in a sliding way;
the lower end of the second connecting rod is fixedly connected with a first pull ring;
the first connecting rod is connected with the second connecting rod through a steel wire rope.
7. The clamp ammeter according to claim 6 wherein the docking assembly includes a third link;
a sliding hole is formed in the bottom of the ammeter body;
a limiting ring is fixedly arranged at the top of the sliding hole;
the third connecting rod is positioned in the sliding hole and is in sliding connection with the sliding hole;
one end of the steel wire stay cord is connected with the opening and closing handle, and the other end of the steel wire stay cord is connected with the upper end of the third connecting rod;
the bottom of the third connecting rod is provided with a butt joint block and a butt joint sleeve matched with the butt joint block;
the butt joint block is fixedly connected with the lower end of the third connecting rod;
the upper end of the first connecting rod is fixedly connected with the lower end of the butt joint sleeve;
transverse stepped holes are symmetrically formed in two sides of the butt joint sleeve;
a pull rod is arranged in the stepped hole;
the outer end of the pull rod is fixedly provided with a pull head;
the pull head is provided with a second pull ring;
the pull rod is sleeved with a first spring;
the first spring is positioned in the large-diameter section of the stepped hole;
one end of the pull rod, which is far away from the pull head, is provided with a limiting flange for limiting the first spring;
a second spring is sleeved on the first connecting rod;
one end of the second spring is connected with the lower surface of the butt joint sleeve, and the other end of the second spring is connected with the upper surface of the cylinder;
a third spring is sleeved on the third connecting rod;
one end of the third spring is connected with the lower surface of the ammeter body, and the other end of the third spring is connected with the upper surface of the butt joint block.
8. The clamp-on ammeter according to claim 1, wherein the ammeter body comprises a housing and a wiring board disposed within the housing;
the shell is provided with a display screen, a gear knob, keys and jacks for connecting the extension rods.
9. The clamp-on ammeter of claim 8 wherein the housing includes a first housing and a second housing;
the first shell is detachably connected with the second shell through a plug-in assembly;
the jack is arranged at the bottom of the first shell;
the display screen, the gear knob and the keys are all arranged on the second shell;
the circuit board is arranged in the second shell;
a socket is fixedly arranged on one side of the first shell, which is close to the second shell;
the circuit board is electrically connected with the socket through an extension lead;
and the rear side of the second shell is provided with a clamping sleeve for clamping the extension rod.
10. The clamp ammeter according to claim 9, wherein the plugging assembly comprises a clamping groove arranged on the first housing, a pressing spring piece arranged in the clamping groove, a pressing block arranged outside the pressing spring piece, and a plugging head arranged at the side end of the second housing and corresponding to the pressing spring piece;
the plug connector is clamped with the clamping groove.
CN202310458044.8A 2023-04-26 2023-04-26 Clamp-on ammeter Active CN116183982B (en)

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