CN112162123B - Experimental supplementary shorting stub instrument of cubical switchboard - Google Patents
Experimental supplementary shorting stub instrument of cubical switchboard Download PDFInfo
- Publication number
- CN112162123B CN112162123B CN202011050101.1A CN202011050101A CN112162123B CN 112162123 B CN112162123 B CN 112162123B CN 202011050101 A CN202011050101 A CN 202011050101A CN 112162123 B CN112162123 B CN 112162123B
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- fixedly connected
- contact
- handle
- movable
- switch cabinet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Abstract
The invention discloses a switch cabinet test auxiliary short-circuit wire tool which comprises a trolley switch moving contact and a contact plug, wherein a conductive surface is fixedly connected inside the trolley switch moving contact, the contact plug comprises a handle, a conductive column is fixedly connected to one side of the handle, a cavity is formed inside the conductive column, four movable blocks are arranged inside the cavity, a trapezoidal block is fixedly connected to one adjacent side of the four movable blocks, and one end of each movable block is hinged to the edge of the conductive column. According to the invention, the movable column drives the stud to move towards the inside of the cavity by rotating the knob, and then the trapezoidal blocks at one ends of the four movable blocks are extruded, so that the four movable blocks can be expanded outwards to be fully contacted with the inside of the movable contact of the trolley switch, thereby stably contacting the conductive surface of the inner wall of the movable contact of the trolley switch, stabilizing the contact resistance and further ensuring accurate measurement results.
Description
Technical Field
The invention relates to the technical field of auxiliary short-circuit wires for a switch cabinet test, in particular to an auxiliary short-circuit wire tool for the switch cabinet test.
Background
A switch cabinet (switch cabinet) is an electrical device, wherein an external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch circuit is arranged according to the requirement. Such as instruments, automatic control, magnetic switches of motors, various alternating current contactors and the like, some switch cabinets with high-voltage chambers and low-voltage chambers, high-voltage buses, such as power plants and the like, and some switch cabinets with low-frequency load relief for protecting main equipment, wherein the switch cabinets (switchgear) mainly function to open, close, control and protect electric equipment in the power generation, transmission, distribution and electric energy conversion processes of a power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. The classification methods of the switch cabinets are various, for example, the switch cabinets can be divided into movable switch cabinets and fixed switch cabinets by the installation mode of the circuit breaker; or according to different cabinet body structures, the cabinet body can be divided into an open type switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; the high-voltage switch cabinet, the medium-voltage switch cabinet, the low-voltage switch cabinet and the like can be divided according to different voltage grades. Is mainly suitable for various occasions such as power plants, transformer substations, petrochemical industry, metallurgy steel rolling, light industry textile, factories and mines, residential districts, high-rise buildings and the like
In the process of testing loop resistance of the trolley switch, contact resistance of the test clamp is unstable due to the fact that the switch spring contact warps upwards in different directions when the switch spring contact is clamped, and therefore the test result fluctuates.
Disclosure of Invention
The invention aims to provide an auxiliary short circuit tool for a switch cabinet test, and the purpose of solving the problems is achieved.
In order to achieve the purpose, the invention provides the following technical scheme: a switch cabinet test auxiliary shorting stub tool comprises a trolley switch moving contact and a contact plug, wherein a conductive surface is fixedly connected inside the trolley switch moving contact, the contact plug comprises a handle, a conductive column is fixedly connected to one side of the handle, a cavity is formed inside the conductive column, four movable blocks are arranged inside the cavity, a trapezoidal block is fixedly connected to one side, adjacent to the four movable blocks, of the four movable blocks, one end of each movable block is hinged to the edge of the conductive column, an extrusion block is arranged at one end of each conductive column, contact rods are arranged on the outer sides of the four movable blocks, a plurality of groups of contact rods are arranged on each contact rod, a stud is arranged inside the cavity, the outer wall of the stud is in threaded connection with the inner wall of the cavity, the other end of the stud penetrates through the right side of the handle and is fixedly connected with a movable column, and one end of the movable column is provided with a knob.
Preferably, the number of the contact plugs is two, a wire is fixedly connected between the handles at one end of the two contact plugs, and two ends of the wire are fixedly connected to the side surfaces of the two handles.
Preferably, the surface of the handle is fixedly connected with a plurality of anti-slip ribs, the cross sections of the anti-slip ribs are semicircular, and the number of the anti-slip ribs is multiple.
Preferably, spring slot I is opened at the left end of leading electrical pillar on the right side of extrusion piece, one side fixedly connected with compression spring I that extrusion piece is close to spring slot I, compression spring I's the other end and the inner wall fixed connection of spring slot I, compression spring I and spring slot I are equipped with four altogether to evenly install in the left side of leading electrical pillar, thereby can let extrusion piece and conducting surface in close contact with all the time through set up compression spring I at extrusion piece's right-hand member, thereby can make and lead electrical pillar and dolly switch moving contact installation inseparabler.
Preferably, the right side fixedly connected with slide bar of extrusion piece, open in the left side of leading electrical pillar one side of slide bar has the slide opening, slide bar and slide opening sliding connection through setting up slide bar and slide opening sliding connection, can make the extrusion piece when the motion, it is more smooth and easy.
Preferably, the contact point is made of copper alloy, two circular arc-shaped protrusions are arranged on the contact point, a spring groove II is formed in the outer wall of the movable block on one side of the contact rod, a compression spring II is fixedly connected to the inner wall of the spring groove II, and the other end of the compression spring II is fixedly connected with one end of the contact rod.
Preferably, the one end and the activity post of knob are articulated, the interior survey fixedly connected with block rubber of knob can people relax more in the process of turning round through setting up the block rubber, can not hinder in hand.
Preferably, one side of the handle close to the conductive column is fixedly connected with a mounting plate, and the left side of the mounting plate is fixedly connected with a magnet, so that the contact plug and the moving contact of the trolley switch are connected more tightly.
The invention provides a switch cabinet test auxiliary short-circuit wire tool. The method has the following beneficial effects:
1. according to the invention, the movable column drives the stud to move towards the inside of the cavity by rotating the knob, and then the trapezoidal blocks at one ends of the four movable blocks are extruded, so that the four movable blocks can be expanded outwards to be fully contacted with the inside of the moving contact of the trolley switch, and the purpose of stably contacting the conductive surface of the inner wall of the moving contact of the trolley switch is achieved, so that the contact resistance is stable, the measurement result is accurate, and the movable blocks are provided with a large number of contact rods and contact points, so that the contact firmness is increased.
2. According to the invention, the extrusion block is arranged at one end of the conductive column and is connected with the spring groove I at the left end of the conductive column through the compression spring I, and the extrusion block can always keep close contact with the inner wall of the conductive surface for mounting the platform under the action of the compression spring I, so that the effect of stable contact resistance is achieved.
3. According to the invention, the rubber block is arranged on the knob, so that the twisting process of people is easier, hands are not injured, the side of the handle close to the conductive column is fixedly connected with the mounting plate, and the left side of the mounting plate is fixedly connected with the magnet, so that the contact plug is attracted with the conductive surface of the inner wall of the movable contact of the trolley switch, the contact plug is not easy to fall off, and the trolley switch is more convenient for people to use.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, in which
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the present invention A;
FIG. 3 is an enlarged schematic view of invention B;
fig. 4 is an overall structural view of the contact plug and the wire of the present invention.
In the figure: the device comprises a trolley switch moving contact 1, a conductive surface 2, a contact plug 3, a handle 4, an anti-slip rib 5, a conducting wire 6, a conductive column 7, a cavity 8, a movable block 9, an extrusion block 10, a spring groove I11, a compression spring I12, a sliding rod 13, a sliding hole 14, a trapezoidal block 15, a contact rod 16, a spring groove II17, a compression spring II18, a contact point 20, a stud 21, a movable column 22, a knob 23, a rubber block 24, a mounting plate 25 and a magnet 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
As shown in fig. 1-the present invention provides a technical solution: a switch cabinet test auxiliary short-circuit wire tool comprises a trolley switch moving contact 1 and two contact plugs 3, wherein the two contact plugs 3 are arranged, a conducting wire 6 is fixedly connected between handles at one ends of the two contact plugs 3, two ends of the conducting wire 6 are fixedly connected to the side surfaces of the two handles 4, anti-slip ribs 5 are fixedly connected to the surfaces of the handles 4, the cross sections of the anti-slip ribs 5 are in a semicircular shape, a plurality of anti-slip ribs 5 are arranged, a conducting surface 2 is fixedly connected to the inside of the trolley switch moving contact 1, each contact plug 3 comprises a handle 4, a conducting post 7 is fixedly connected to one side of each handle 4, a cavity 8 is formed in each conducting post 7, four movable blocks 9 are arranged in each cavity 8, trapezoidal blocks 15 are fixedly connected to one adjacent sides of the four movable blocks 9, one ends of the four movable blocks 9 are hinged to the edge of the conducting post 7, and an extrusion block 10 is arranged at one end of the conducting post 7, the extrusion block 10 is arranged at one end of the conductive post 7, and the extrusion block 10 is connected with the spring groove I11 at the left end of the conductive post 7 through the compression spring I12, due to the action of the compression spring I12, the extrusion block 10 can always keep a platform in close contact with the inner wall of the conductive surface 2, so as to achieve the effect of stable contact resistance, the spring groove I11 is formed at the left end of the conductive post 7 at the right side of the extrusion block 10, the compression spring I12 is fixedly connected to one side of the extrusion block 10 close to the spring groove I11, the other end of the compression spring I12 is fixedly connected with the inner wall of the spring groove I11, the compression springs I12 and the spring groove I11 are provided with four, and are uniformly arranged at the left side of the conductive post 7, the extrusion block 10 can be always in close contact with the conductive surface 2 by arranging the compression spring I11 at the right end of the extrusion block 10, so that the conductive post 7 and the movable contact switch 1 of the trolley can be installed more tightly, a sliding rod 13 is fixedly connected to the right side of the extrusion block 10, a sliding hole 14 is formed in one side of the sliding rod 13 on the left side of the conductive column 7, the sliding rod 13 is in sliding connection with the sliding hole 14, the extrusion block 10 can be made to move more smoothly by arranging the sliding rod 13 in sliding connection with the sliding hole 14, contact rods 16 are arranged on the outer sides of the four movable blocks 9, a plurality of groups of contact rods 16 are arranged on the contact rods 16, one end of each contact rod 16 is fixedly connected with a contact point 20, the contact point 20 is made of copper alloy, two circular arc-shaped bulges are arranged on the contact point 20, a spring groove II17 is formed in the outer wall of each movable block 9 on one side of each contact rod 16, a compression spring II18 is fixedly connected to the inner wall of a spring groove II17, the other end of the compression spring II18 is fixedly connected with one end of the contact rod 16, a stud 21 is arranged inside the cavity 8, the outer wall of the stud 21 is in threaded connection with the inner wall of the cavity 8, the other end of the stud 21 penetrates through to the right side of the handle 4 and is fixedly connected with a movable column 22, a knob 23 is arranged at one end of a movable column 22, the movable column 22 drives a stud 21 to move towards the inside of a cavity 8 by rotating the knob 23, then the trapezoidal blocks 15 at one ends of four movable blocks 9 are extruded, so that the four movable blocks 9 can be expanded outwards to be fully contacted with the inside of a trolley switch movable contact 1, the purpose of stably contacting a conductive surface 2 on the inner wall of the trolley switch movable contact 1 is achieved, the contact resistance is stable, the measurement result is accurate, a large number of contact rods 16 and contact points 20 are arranged on the movable blocks 9, the contact firmness is higher, one end of the knob 23 is hinged with the movable column 22, a rubber block 24 is fixedly connected to the inner side of the knob 23, the twisting process of people can be easier and cannot hurt hands by arranging the rubber block 24, a mounting plate 25 is fixedly connected to one side of a handle 4 close to a conductive column 7, a magnet 26 is fixedly connected to the left side of the mounting plate 25, make contact plug 3 and dolly switch moving contact 1 be connected inseparabler, can make people lighter in the process of turning round through set up block rubber 24 on knob 23, can not hinder in one's hands, and handle 4 is close to one side fixedly connected with mounting panel 25 of leading electrical pillar 7, and mounting panel 25 left side fixedly connected with magnet 26, thereby make contact plug 3 and the electrically conductive 2 actuation of 1 inner wall of dolly switch moving contact, thereby be difficult to make contact plug 3 drop, make things convenient for people to use more.
When using, the knob 23 rotates, make movable post 22 drive the inside activity of double-screw bolt 21 to cavity 8, then extrude trapezoidal piece 15 of four movable blocks 9 one ends, thereby make four movable blocks 9 can outwards expand, thereby fully with the inside contact of dolly switch moving contact 1, thereby reach on the conducting surface 2 of the 1 inner wall of stable contact dolly switch moving contact, make contact resistance stable, thereby make measuring result accurate, one end at conductive pillar 7 sets up extrusion piece 10, and extrusion piece 10 is connected through compression spring I12 and the spring groove I11 of conductive pillar 7 left end, because compression spring I12's effect, thereby make extrusion piece 10 can keep the mount of in close contact with the inner wall of conducting surface 2 all the time, thereby reach the stable effect of contact resistance.
In conclusion, the knob 23 is rotated to make the movable column 22 drive the stud 21 to move towards the inside of the cavity 8, and then the trapezoidal blocks 15 at one ends of the four movable blocks 9 are extruded, so that the four movable blocks 9 can expand outwards to fully contact with the inside of the trolley switch movable contact 1, so as to stably contact the conductive surface 2 on the inner wall of the trolley switch movable contact 1, so that the contact resistance is stable, and the measurement result is accurate, the extrusion block 10 is arranged at one end of the conductive column 7, and the extrusion block 10 is connected with the spring groove I11 at the left end of the conductive column 7 through the compression spring I12, due to the action of the compression spring I12, the extrusion block 10 can always keep a mounting platform in close contact with the inner wall of the conductive surface 2, so that the effect of stable contact resistance is achieved, and the rubber block 24 is arranged on the knob 23, so that people can feel easier in the twisting process, hands can not be injured, the handle 4 is close to the one side fixedly connected with mounting panel 25 of leading electrical pillar 7, and the mounting panel 25 left side fixedly connected with magnet 26, thereby make contact plug 3 and the electrically conductive face 2 actuation of dolly switch moving contact 1 inner wall, thereby be difficult to make contact plug 3 drop, more make things convenient for people to use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a cubical switchboard experimental supplementary shorting stub instrument, includes dolly switch moving contact (1), contact plug (3), the inside fixedly connected with conducting surface (2) of dolly switch moving contact (1), its characterized in that: contact plug (3) includes handle (4), one side fixedly connected with of handle (4) leads electrical pillar (7), open the inside of leading electrical pillar (7) has cavity (8), the inside of cavity (8) is equipped with four movable block (9), four one side fixedly connected with trapezoidal piece (15) that movable block (9) are adjacent, four the one end of movable block (9) is articulated with the edge of leading electrical pillar (7), the one end of leading electrical pillar (7) is equipped with extrusion block (10), four the outside of movable block (9) is provided with contact bar (16), contact bar (16) are equipped with the multiunit, the one end fixedly connected with contact point (20) of contact bar (16), the inside of cavity (8) is equipped with double-screw bolt (21), the outer wall of double-screw bolt (21) and the inner wall threaded connection of cavity (8), the other end of double-screw bolt (21) runs through to the right side of handle (4) and fixedly connected with movable column (22) And one end of the movable column (22) is provided with a knob (23).
2. The auxiliary short-circuit tool for the switch cabinet test according to claim 1, wherein: contact plug (3) are equipped with two, two fixedly connected with wire (6) between the handle of contact plug (3) one end, the both ends fixed connection of wire (6) is two the side of handle (4).
3. The auxiliary short-circuit wire tool for the switch cabinet test according to claim 1, characterized in that: the anti-skidding handle is characterized in that anti-skidding ribs (5) are fixedly connected to the surface of the handle (4), the cross sections of the anti-skidding ribs (5) are semicircular, and the number of the anti-skidding ribs (5) is multiple.
4. The auxiliary short-circuit tool for the switch cabinet test according to claim 1, wherein: spring groove I (11) have been opened at the left end that leads electrical pillar (7) on the right side of extrusion piece (10), one side fixedly connected with compression spring I (12) that extrusion piece (10) are close to spring groove I (11), the inner wall fixed connection of the other end of compression spring I (12) and spring groove I (11), compression spring I (12) and spring groove I (11) are equipped with four altogether to evenly install the left side of leading electrical pillar (7).
5. The auxiliary short-circuit wire tool for the switch cabinet test according to claim 1, characterized in that: the right side of the extrusion block (10) is fixedly connected with a sliding rod (13), one side of the sliding rod (13) is provided with a sliding hole (14) on the left side of the conductive post (7), and the sliding rod (13) is in sliding connection with the sliding hole (14).
6. The auxiliary short-circuit tool for the switch cabinet test according to claim 1, wherein: the material of contact point (20) is the copper alloy, be equipped with two convex archs on contact point (20), one side of contact lever (16) is opened at the outer wall of movable block (9) has spring groove II (17), the inner wall fixedly connected with compression spring II (18) of spring groove II (17), the other end of compression spring II (18) and the one end fixed connection of contact lever (16).
7. The auxiliary short-circuit tool for the switch cabinet test according to claim 1, wherein: one end of the knob (23) is hinged with the movable column (22), and a rubber block (24) is fixedly connected to the inner side of the knob (23).
8. The auxiliary short-circuit tool for the switch cabinet test according to claim 1, wherein: handle (4) are close to one side fixedly connected with mounting panel (25) of leading electrical pillar (7), mounting panel (25) left side fixedly connected with magnet (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011050101.1A CN112162123B (en) | 2020-09-29 | 2020-09-29 | Experimental supplementary shorting stub instrument of cubical switchboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011050101.1A CN112162123B (en) | 2020-09-29 | 2020-09-29 | Experimental supplementary shorting stub instrument of cubical switchboard |
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| Publication Number | Publication Date |
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| CN112162123A CN112162123A (en) | 2021-01-01 |
| CN112162123B true CN112162123B (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011050101.1A Active CN112162123B (en) | 2020-09-29 | 2020-09-29 | Experimental supplementary shorting stub instrument of cubical switchboard |
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