CN110011081B - Temporary grounding device and grounding method - Google Patents
Temporary grounding device and grounding method Download PDFInfo
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- CN110011081B CN110011081B CN201910408412.1A CN201910408412A CN110011081B CN 110011081 B CN110011081 B CN 110011081B CN 201910408412 A CN201910408412 A CN 201910408412A CN 110011081 B CN110011081 B CN 110011081B
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- grounding
- circular ring
- spring
- contact
- cylinder
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000005253 cladding Methods 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
- H01R4/4863—Coil spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/007—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for elastomeric connecting elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/027—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting conductors by clips
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Cable Installation (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a temporary grounding device and a grounding method, and belongs to the technical field of power grounding equipment. The technical proposal is as follows: after the elastic card (21) at the lower end of the cylinder (22) passes through the circular ring part (81), the elastic card is restored to the original state under the action of the elastic card and elastically contacts with the lower end surface of the grounding plate (9), and meanwhile, the lower end of the annular side wall (13) of the cap (1) contacts with the upper end surface of the opening circular ring, so that the cap (1), the terminal (8) and the grounding plate (9) are fixed together; a second spring contact (32) passes through the groove to contact the grounding plate, and the first spring contact contacts the conductor part of the electric wire; at this time, if the ground plate is in good contact with the wire, the indicator member is displayed as normal, otherwise the terminal or ground plate is further processed until the indicator member is displayed as normal. The invention has simple structure and convenient use, can realize the rapid grounding of the electric wire and can indicate the grounding effect.
Description
Technical Field
The invention relates to a temporary grounding device and a grounding method, and belongs to the technical field of power grounding equipment.
Background
The grounding operation is crucial in the operation and inspection maintenance of the current power equipment, the existing grounding is mainly realized by connecting the equipment to the grounding plate through a grounding wire, a terminal is usually fixed to the grounding plate through a bolt, but in the process of fixing the bolt, the bolt is required to be screwed down through a spanner, the process is time-consuming and labor-consuming, the problem is particularly prominent especially in the operation of grounding a plurality of grounding wires, in addition, the grounding plate and the terminal are both made of metal, the time is long, the metal surface is easy to rust, the fastening process of the bolt is also probably not fastened in place due to human factors, and the factors can lead to the fact that the grounding is realized by looking at the wire on the surface, but in fact, effective electric connection is not formed, and great potential safety hazards are extremely likely to be caused to the following operation.
Disclosure of Invention
The invention aims to provide a temporary grounding device and a grounding method, which can relieve potential safety hazards, realize quick grounding, and can indicate grounding effect so as to solve the problems in the prior art.
The technical scheme of the invention is as follows:
a temporary grounding device comprises a buckle device, a control module, an indication part, a power supply, an electric wire, a terminal and a grounding plate;
the terminal comprises a circular ring part, a conductive copper sheet and a clamp body, wherein the circular ring part consists of an opening circular ring and a boss, a through groove is formed in the opening circular ring, a circular arc boss is arranged on the lower end face of the opening circular ring, which is close to the inner ring, the conductive copper sheet is connected to the opening circular ring, and the electric wire is fixed on the conductive copper sheet through the clamp body;
the grounding plate is arranged below the terminal, a grounding hole is formed in the grounding plate, the circular arc-shaped boss of the circular ring part is inserted into the grounding hole in a matched mode, and the lower end face of the opening circular ring is contacted with the grounding plate;
the clamping device is arranged above the terminal and comprises a cover cap, a clamping column, a first spring contact and a second spring contact, wherein the cover cap consists of a circular upper cover and an annular side wall arranged on the lower end surface of the circular upper cover, the annular side wall is provided with a notch, and the position of the notch is staggered with the opening position of the opening circular ring; the lower end face of the round upper cover is provided with a buckling column, a first spring contact and a second spring contact respectively; the buckling column consists of a cylinder and an elastic card, the elastic card is arranged at the bottom end of the cylinder, the upper end of the cylinder is fixed at the lower end face of the circular upper cover, and after the lower end of the cylinder passes through the circular ring part, the elastic card at the bottom end of the cylinder is clamped at the lower end face of the grounding plate; the first spring contact is positioned at the notch of the annular side wall, the upper end of the first spring contact is fixed on the lower end face of the circular upper cover, the electric wire stretches into the notch of the annular side wall, and the lower end of the first spring contact is contacted with the electric wire; the second spring contact is positioned above the groove, the upper end of the second spring contact is fixed on the lower end face of the circular upper cover, and the lower end of the second spring contact passes through the groove and then contacts with the grounding plate;
the cap is also provided with a power supply, a control module and an indicating component, the control module is respectively connected with the first spring contact and the second spring contact through wires, and the power supply, the control module and the indicating component are sequentially connected.
The spring contact I comprises a spring I, a contact pin I and a cylinder I, wherein the cylinder I is fixedly arranged on the lower end face of the circular upper cover; the spring contact II comprises a spring II, a contact pin II and a cylinder II, the cylinder II is fixedly arranged on the lower end face of the circular upper cover, the spring II is arranged in the cylinder II, the upper end of the spring II is fixedly arranged on the lower end face of the circular upper cover, the contact pin II is arranged at the lower end of the spring II, and the contact pin II is in contact with the grounding plate.
The wire comprises a conductor part and a coating part, wherein the coating part is coated outside the conductor part, the conductor part stretches out of the coating part and then stretches into the notch of the annular side wall, and a contact pin I of the spring contact I is contacted with the stretching-in end of the conductor part.
The clamp body comprises a first clamp body and a second clamp body, wherein the first clamp body is clamped on the extending end of the conductor part, and the second clamp body is clamped on the cladding part.
The groove is an arc-shaped groove.
The length of the first spring contact is smaller than that of the second spring contact.
One end of the first contact pin, which is connected with the first spring, is provided with a first flange which is contacted with the inner wall of the cylinder; one end of the second contact pin, which is connected with the second spring, is provided with a second flange, and the second flange is contacted with the inner wall of the second cylinder.
The length of the first spring is smaller than that of the second spring.
The inside of circular upper cover is equipped with the cavity, and control module and power setting are in the cavity, are equipped with the door on the cavity to realize control module or power's change, the connected mode of door and circular upper cover up end is known, for example buckle.
The indicating component is an indicating lamp or a buzzer.
The quantity of the elastic cards is two or more, the elastic cards are arranged on the lower end face of the cylinder in a surrounding mode, the cylinder and the elastic cards are of an integrated structure, when the elastic cards pass through the circular ring portion, the elastic cards shrink towards the direction close to the cylinder, and when the elastic cards pass through the circular ring portion, the elastic cards spring away from the cylinder according to self elasticity and are clamped on the lower end face of the grounding plate.
The notch width of annular lateral wall is greater than the width of electric wire.
The width of the opening circular ring is 0.5-2cm, so that the adjustment of the inner diameter and the outer diameter of the opening circular ring in a certain range is realized.
The position of the boss is staggered with the position of the opening circular ring.
The indicator lamp is an LED lamp.
The temporary grounding method adopts the grounding device and comprises the following steps:
a first step of: preparing an electric wire and a terminal, removing a part of a coating part at one end of the electric wire, and leaking a part of a conductor part; placing the electric wire on the conductive copper sheet, and clamping the leaked part of the conductor part by the first clamp body and the cladding part by the second clamp body;
and a second step of: aligning the boss of the circular ring part with a grounding hole on the grounding plate, so that the boss is inserted into the grounding hole, and the opening circular ring and the lower end face of the fan blade are contacted with the grounding plate;
and a third step of: preparing a clamping device, aligning the clamping device with the circular ring part, and adjusting the direction of the clamping device to align a first spring contact arranged at the notch of the annular side wall with a part of the conductor part leaked by the electric wire, and aligning a second spring contact with a groove arranged on the opening circular ring; the clamping device is pressed down towards the direction of the circular ring part, after the elastic card at the bottom end of the cylinder passes through the circular ring part, the elastic card is restored to the original state under the action of the elastic card and is elastically contacted with the lower end face of the grounding plate, and meanwhile, the lower end face of the side wall of the cap is contacted with the upper end face of the opening circular ring, so that the cap, the terminal and the grounding plate are fixed together; the spring contact II passes through the groove to contact with the grounding plate, and the spring contact I contacts with a part of conductor part leaked from the electric wire; at this time, if the ground plate is in good contact with the wire, the indicator member is displayed as normal, otherwise the terminal or ground plate is further processed until the indicator member is displayed as normal.
The second step further comprises adjusting the diameter of the opening circular ring by adjusting the opening size of the opening circular ring, so as to adjust the radian of the arc-shaped boss arranged on the lower end surface of the opening circular ring, and enable the arc-shaped boss to be matched with the grounding hole of the grounding plate.
Further, the terminal or the ground plate is further processed in the third step to be derusted.
The invention has the advantages that:
the electric wire can be connected with the invention relatively quickly, tools such as a spanner, a bolt and the like are not needed, and the time for screwing the bolt by the spanner is also saved. The grounding effect can be indicated, and occurrence of poor grounding can be prevented. The opening circular ring of the circular ring part can effectively increase the grounding area of the terminal and the grounding plate. The opening design of the opening circular ring can adjust the inner diameter and the outer diameter of the opening circular ring, so that the arc-shaped boss is matched with the grounding hole, and the adaptability of the terminal is improved.
The invention has the positive effects that: simple structure, convenient to use can realize the quick ground connection of electric wire, can instruct the ground connection effect moreover.
Drawings
FIG. 1 is a schematic view of a connection structure of a terminal and an electric wire according to the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic cross-sectional view of the buckle device of the present invention;
FIG. 4 is a schematic circuit diagram of the present invention;
in the figure: cap 1, circular upper cover 12, annular side wall 13, snap post 2, elastic card 21, cylinder 22, spring contact one 31, spring contact two 32, spring one 311, contact pin one 312, cylinder one 313, spring two 321, contact pin two 322, cylinder two 323, control module 4, indicator 5, power supply 6, wire 7, conductor 71, cladding 72, terminal 8, ring 81, first clip 82, second clip 83, conductive copper sheet 84, open ring 811, boss 812, slot 813, ground plate 9, ground hole 91.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
a temporary grounding device comprises a clamping device, a control module 4, an indicating component 5, a power supply 6, an electric wire 7, a terminal 8 and a grounding plate 9;
the terminal 8 comprises a circular ring part 81, a conductive copper sheet 84 and a clamp body, wherein the circular ring part 81 consists of an opening circular ring 811 and a boss 812, a through groove 813 is formed in the opening circular ring, the opening circular ring is provided with a circular arc boss 812 close to the lower end face of the inner ring, the conductive copper sheet 84 is connected to the opening circular ring 811, and the electric wire 7 is fixed on the conductive copper sheet through the clamp body;
the grounding plate 9 is arranged below the terminal 8, the grounding plate is provided with a grounding hole 91, the circular arc-shaped boss 812 of the circular ring part 81 is inserted into the grounding hole 91 in a matching way, and the lower end surface of the opening circular ring is contacted with the grounding plate 9;
the buckling device is arranged above the terminal 8 and comprises a cap 1, a buckling column 2, a first spring contact 31 and a second spring contact 32, wherein the cap 1 consists of a circular upper cover 12 and an annular side wall 13 arranged on the lower end surface of the circular upper cover 12, the annular side wall 13 is provided with a notch, and the position of the notch is staggered with the opening position of the opening circular ring; the lower end face of the round upper cover 12 is respectively provided with a buckling column 2, a first spring contact 31 and a second spring contact 32; the buckling column 2 consists of a cylinder 22 and an elastic card 21, the elastic card 21 is arranged at the bottom end of the cylinder 22, the upper end of the cylinder 22 is fixed on the lower end face of the circular upper cover 12, and after the lower end of the cylinder 22 passes through the circular ring part 81, the elastic card 21 positioned at the bottom end of the cylinder 22 is clamped on the lower end face of the grounding plate 9; the first spring contact 31 is positioned at the notch of the annular side wall 13, the upper end of the first spring contact 31 is fixed on the lower end face of the circular upper cover 12, the electric wire 7 stretches into the notch of the annular side wall 13, and the lower end of the first spring contact 31 is in contact with the electric wire 7; the second spring contact 32 is positioned above the groove 813, the upper end of the second spring contact 32 is fixed on the lower end face of the round upper cover 12, and the lower end of the second spring contact 32 passes through the groove 813 and then contacts with the ground plate 9;
the cap 1 is also provided with a power supply 6, a control module 4 and an indicating component 5, the control module 4 is respectively connected with the first spring contact 31 and the second spring contact 32 through wires, and the power supply 6, the control module 4 and the indicating component 5 are sequentially connected.
The first spring contact 31 comprises a first spring 311, a first contact pin 312 and a first cylinder 313, the first cylinder 313 is fixedly arranged on the lower end face of the circular upper cover 12, the first spring 311 is arranged in the first cylinder 313, the upper end of the first spring 311 is fixedly arranged on the lower end face of the circular upper cover 12, the first contact pin 312 is arranged at the lower end of the first spring 311, and the first contact pin 312 is in contact with the electric wire 7; the second spring contact 32 comprises a second spring 321, a second contact pin 322 and a second cylinder 323, the second cylinder 323 is fixedly arranged on the lower end face of the circular upper cover 12, the second spring 321 is arranged in the second cylinder 323, the upper end of the second spring 321 is fixedly arranged on the lower end face of the circular upper cover 12, the second contact pin 322 is arranged at the lower end of the second spring 321, and the second contact pin 322 is in contact with the ground plate 9.
The electric wire 7 comprises a conductor part 71 and a coating part 72, the coating part 72 is coated outside the conductor part 71, the conductor part 71 extends out of the coating part 72 and then extends into the notch of the annular side wall 13, and the contact pin I312 of the spring contact I31 is contacted with the extending end of the conductor part 71.
The clip body includes a first clip body 82 and a second clip body 83, the first clip body 82 is clamped on the protruding end of the conductor portion 71, and the second clip body 83 is clamped on the covering portion 72.
The slot 813 is an arc-shaped slot.
The length of the first spring contact 31 is smaller than the length of the second spring contact 32.
The length of the first spring is smaller than that of the second spring.
One end of the first contact pin 312 connected with the first spring is provided with a first flange which is contacted with the inner wall of the first cylinder 313; the end of the second contact pin 322 connected with the second spring is provided with a second flange, and the second flange is contacted with the inner wall of the second cylinder 323.
The inside of circular upper cover 12 is equipped with the cavity, and control module 4 and power 6 set up in the cavity, are equipped with the door on the cavity to realize control module or power's change. The connection of the door to the upper end face of the circular upper cover is known, for example by means of a snap.
The indicating component 5 is an indicating lamp or a buzzer.
The notch width of the annular side wall 13 is larger than the width of the electric wire.
The quantity of the elastic cards is two or more, the elastic cards are arranged on the lower end face of the cylinder in a surrounding mode, the cylinder and the elastic cards are of an integrated structure, when the elastic cards pass through the circular ring portion, the elastic cards shrink towards the direction close to the cylinder, and when the elastic cards pass through the circular ring portion, the elastic cards spring away from the cylinder according to self elasticity and are clamped on the lower end face of the grounding plate.
The notch width of annular lateral wall is greater than the width of electric wire.
The width of the opening circular ring is 0.5-2cm, so that the adjustment of the inner diameter and the outer diameter of the opening circular ring in a certain range is realized.
The position of the boss is staggered with the position of the opening circular ring.
The indicator lamp is an LED lamp.
The temporary grounding method adopts the grounding device and comprises the following steps:
a first step of: preparing the electric wire 7 and the terminal 8, removing a part of the coating portion 72 at one end of the electric wire 7, and leaking a part of the conductor portion 71; placing the electric wire 7 on the conductive copper sheet 84, wherein the first clamp body clamps the leaked part of the conductor part, and the second clamp body clamps the cladding part;
and a second step of: aligning the boss 812 of the circular ring part with the grounding hole 91 on the grounding plate 9, inserting the boss 812 into the grounding hole 91, and contacting the opening circular ring 811 and the lower end surface of the fan blade 85 with the grounding plate 9;
and a third step of: preparing a clamping device, aligning the clamping device with the circular ring part, adjusting the direction of the clamping device, aligning a first spring contact arranged at the notch of the annular side wall with a part of the conductor part leaked out of the electric wire, and aligning a second spring contact 32 with a groove 813 arranged on the opening circular ring; after the elastic card 21 at the bottom end of the cylinder 22 passes through the circular ring part 81, the elastic card is restored to the original state under the action of the elastic card and elastically contacts with the lower end surface of the grounding plate 9, and meanwhile, the lower end surface of the annular side wall 13 of the cap 1 contacts with the upper end surface of the open circular ring, so that the cap 1, the terminal 8 and the grounding plate 9 are fixed together; spring contact two 32 passes through groove 813 to contact with the ground plate, spring contact one 31 contacts with part of the conductor part of the wire leakage; at this time, if the ground plate is in good contact with the wire, the indicator member is displayed as normal, otherwise the terminal or ground plate is further processed until the indicator member is displayed as normal.
Further, in the second step, the diameter of the open circular ring 811 is adjusted by adjusting the opening size of the open circular ring 811, so as to adjust the radian of the circular arc-shaped boss 812 disposed on the lower end surface of the open circular ring 811, so that the circular arc-shaped boss 812 is adapted to the grounding hole of the grounding plate.
Further, the terminal or the ground plate is further processed in the third step to be derusted.
As shown in fig. 2 and 3, the circular upper cover 12, the annular side wall 13, the first cylinder 313 and the second cylinder 323 may be integrally formed, one end of the first cylinder 313, which is far away from the circular upper cover 12, is provided with a first circular hole, the first spring 311 is located in the first cylinder, the first contact pin 312 is conical, the conical bottom surface is connected with the first spring, and the bottom surface is provided with a first flange, which is in contact with the inner wall of the first cylinder to prevent the first contact pin 312 from being separated from the first cylinder. The end of the second cylinder 323 far away from the circular upper cover 12 is provided with a second round hole, the second spring 321 is positioned in the second cylinder, the second contact pin 322 is conical, the bottom surface is connected with the second spring 321, the bottom surface is provided with a second flange, and the second flange is contacted with the inner wall of the second cylinder to prevent the second contact pin 322 from falling out of the cylinder. The buckling column 2 comprises a cylinder 22 and elastic cards 21, one end of each elastic card 21 is arranged at the tail end of the cylinder 22, the other end of each elastic card extends out towards the direction of the cap 1 and is clamped on the ground plate, and the number of the elastic cards is two or more. The cap 1 is further provided with a power supply 6, a control module 4 and an indicator lamp, the control module 4 is connected with one ends, provided with a flange I and a flange II, of the contact pin I312 and the contact pin II 322 respectively through wires, when the contact pin I312 and the contact pin II 322 are communicated, the control module 4 sends a control signal to the indicator lamp 5, the indicator lamp 5 is lightened, and the cap 1 is further provided with the power supply 6 for supplying power to the control module 4 and the indicator lamp 5.
As shown in fig. 1, the circular ring portion 81 includes an open circular ring 811 and a boss 812, the open circular ring 811 is further provided with an arc-shaped groove 813, the groove 813 corresponds to the first spring contact, the boss 812 can be embedded into a grounding hole of the grounding plate 9, the open circular ring 811 can increase the contact area between the terminal and the grounding plate 9, the circular ring portion 81 is provided with a conductive copper sheet 84, one end of the electric wire 7 is partially covered with the portion 72, a portion of the conductor portion 71 is leaked, the first clamp 82 is clamped on the leaked conductor portion 71 to realize the electrical connection between the terminal 8 and the electric wire 7, and the second clamp 83 is clamped on the covered portion 72 to realize the fixation of the terminal and the electric wire. The first clip 82 and the second clip 83 are connected together by the conductive copper sheet 84, the open circular ring 811 of the circular ring portion 81 is a non-closed circular ring, the open circular ring 811 is provided with an opening at one end far from the electric wire 7, and the opening has a certain width, so that the inner diameter and the outer diameter of the open circular ring 811 can be changed within a certain range.
The grounding plate 9 is also provided with a grounding hole 91, the grounding hole is a round hole, and the grounding plate can be a special grounding device or a grounding device on electrical equipment.
Claims (8)
1. A temporary grounding device, characterized in that: comprises a clamping device, a control module (4), an indicating component (5), a power supply (6), an electric wire (7), a terminal (8) and a grounding plate (9);
the terminal (8) comprises a circular ring part (81), a conductive copper sheet (84) and a clamp body, wherein the circular ring part (81) consists of an opening circular ring (811) and a boss (812), a through groove (813) is formed in the opening circular ring, the opening circular ring is provided with a circular arc boss (812) close to the lower end face of the inner ring, the conductive copper sheet (84) is connected to the opening circular ring (811), and the electric wire (7) is fixed on the conductive copper sheet through the clamp body;
the grounding plate (9) is arranged below the terminal (8), the grounding plate is provided with a grounding hole (91), the circular arc-shaped boss (812) of the circular ring part (81) is inserted into the grounding hole (91) in a matching way, and the lower end face of the opening circular ring is contacted with the grounding plate (9);
the buckling device is arranged above the terminal (8) and comprises a cap (1), a buckling column (2), a first spring contact (31) and a second spring contact (32), wherein the cap (1) consists of a circular upper cover (12) and an annular side wall (13) arranged on the lower end surface of the circular upper cover (12), the annular side wall (13) is provided with a notch, and the notch position is staggered with the opening position of the opening circular ring (811); the lower end face of the round upper cover (12) is respectively provided with a buckling column (2), a first spring contact (31) and a second spring contact (32); the buckling column (2) consists of a cylinder (22) and an elastic card (21), the elastic card (21) is arranged at the bottom end of the cylinder (22), the upper end of the cylinder (22) is fixed on the lower end face of the circular upper cover (12), and after the lower end of the cylinder (22) passes through the circular ring part (81), the elastic card (21) positioned at the bottom end of the cylinder (22) is clamped on the lower end face of the grounding plate (9); the first spring contact (31) is positioned at the notch of the annular side wall (13), the upper end of the first spring contact (31) is fixed on the lower end face of the circular upper cover (12), the electric wire (7) stretches into the notch of the annular side wall (13), and the lower end of the first spring contact (31) is in contact with the electric wire (7); the second spring contact (32) is positioned above the groove (813), the upper end of the second spring contact (32) is fixed on the lower end face of the round upper cover (12), and the lower end of the second spring contact (32) passes through the groove (813) and then contacts with the grounding plate (9);
the cover cap (1) is also provided with a power supply (6), a control module (4) and an indication part (5), the control module (4) is respectively connected with the first spring contact (31) and the second spring contact (32) through wires, and the power supply (6), the control module (4) and the indication part (5) are sequentially connected;
the circular upper cover (12) is internally provided with a cavity, and the control module (4) and the power supply (6) are arranged in the cavity; the indicating component (5) is an indicating lamp or a buzzer.
2. A temporary grounding device as claimed in claim 1, wherein: the spring contact I (31) comprises a spring I (311), a contact pin I (312) and a cylinder I (313), the cylinder I (313) is fixedly arranged on the lower end face of the circular upper cover (12), the spring I (311) is arranged in the cylinder I (313), the upper end of the spring I (311) is fixed on the lower end face of the circular upper cover (12), the contact pin I (312) is arranged at the lower end of the spring I (311), and the contact pin I (312) is in contact with the electric wire (7); the spring contact II (32) comprises a spring II (321), a contact pin II (322) and a cylinder II (323), the cylinder II (323) is fixedly arranged on the lower end face of the circular upper cover (12), the spring II (321) is arranged in the cylinder II (323), the upper end of the spring II (321) is fixedly arranged on the lower end face of the circular upper cover (12), the contact pin II (322) is arranged at the lower end of the spring II (321), and the contact pin II (322) is in contact with the ground plate (9).
3. A temporary grounding device as claimed in claim 2, wherein: the electric wire (7) comprises a conductor part (71) and a coating part (72), the coating part (72) is coated outside the conductor part (71), the conductor part (71) stretches out of the coating part (72) and then stretches into a notch of the annular side wall (13), and a contact pin I (312) of the spring contact I (31) is contacted with the stretching-in end of the conductor part (71).
4. A temporary grounding device according to claim 3, characterized in that: the clip body comprises a first clip body (82) and a second clip body (83), wherein the first clip body (82) is clamped on the extending end of the conductor part (71), and the second clip body (83) is clamped on the coating part (72).
5. A temporary grounding device as claimed in claim 2, wherein: one end of the contact pin I (312) connected with the spring I is provided with a flange I, and the flange I is contacted with the inner wall of the cylinder I (313); one end of the second contact pin (322) connected with the second spring is provided with a second flange which is contacted with the inner wall of the second cylinder (323).
6. A temporary grounding method using the temporary grounding device according to any one of claims 1 to 5, characterized by the steps of:
a first step of: preparing an electric wire (7) and a terminal (8), removing a part of a coating part (72) at one end of the electric wire (7), and leaking a part of a conductor part (71); placing the electric wire (7) on the conductive copper sheet (84), wherein the first clamp body clamps the leaked part of the conductor part, and the second clamp body clamps the cladding part;
and a second step of: aligning a boss (812) of the circular ring part with a grounding hole (91) on the grounding plate (9), inserting the boss (812) into the grounding hole (91), and enabling the lower end surfaces of the opening circular ring (811) and the fan blades (85) to be in contact with the grounding plate (9);
and a third step of: preparing a clamping device, aligning the clamping device with the circular ring part, adjusting the direction of the clamping device, aligning a first spring contact (31) arranged at the notch of the annular side wall with a part of the conductor part leaked out of the electric wire, and aligning a second spring contact (32) with a groove (813) arranged on the opening circular ring; after the elastic card (21) at the bottom end of the cylinder (22) passes through the circular ring part (81), the elastic card is restored to be in elastic contact with the lower end surface of the grounding plate (9) due to the elastic action of the elastic card, and meanwhile, the lower end surface of the annular side wall (13) of the cap (1) is in contact with the upper end surface of the opening circular ring, so that the cap (1), the terminal (8) and the grounding plate (9) are fixed together; the spring contact II (32) passes through the groove (813) to be contacted with the grounding plate, and the spring contact I (31) is contacted with part of the conductor part leaked out of the electric wire; at this time, if the ground plate is in good contact with the wire, the indicator member is displayed as normal, otherwise the terminal or ground plate is further processed until the indicator member is displayed as normal.
7. A temporary grounding method according to claim 6, characterized in that: the second step further comprises adjusting the diameter of the opening circular ring (811) by adjusting the opening size of the opening circular ring (811), and further adjusting the radian of a circular arc-shaped boss (812) arranged on the lower end face of the opening circular ring (811), so that the circular arc-shaped boss (812) is matched with the grounding hole of the grounding plate.
8. A temporary grounding method according to claim 6 or 7, characterized in that: the third step further processing of the terminal or the ground plate is to perform rust removal processing on the terminal or the ground plate.
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