CN112864656B - Electricity testing grounding device - Google Patents
Electricity testing grounding device Download PDFInfo
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- CN112864656B CN112864656B CN202110066012.4A CN202110066012A CN112864656B CN 112864656 B CN112864656 B CN 112864656B CN 202110066012 A CN202110066012 A CN 202110066012A CN 112864656 B CN112864656 B CN 112864656B
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- 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
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
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Abstract
The invention relates to the field of electric power construction equipment, in particular to an electricity testing grounding device which comprises a handle, an extension rod, a detection grounding rod and a grounding wire, wherein two ends of the extension rod are detachably connected with the handle and the detection grounding rod respectively. The handle is provided with a winding disc, and a traction wire is wound on the winding disc. After the wire clamping hook is connected with the overhead wire, the ground wire on the ground can be pulled up to the position of the detection ground rod through the traction wire, the electrical connection between the ground wire and the wire clamping hook is realized, and then the grounding of the overhead wire is realized. By applying the invention, the electricity testing operation and the grounding operation of the overhead line can be quickly realized, and meanwhile, the climbing of an operator is not needed, so that the working strength of the operator is reduced, and the safety coefficient is improved.
Description
Technical Field
The invention relates to the field of electric power construction equipment, in particular to an electricity testing grounding device.
Background
In the process of electric power construction, the grounding wire is hung, which is a very necessary safety protection measure, in the current safety regulation operation regulations, firstly, the circuit needs to be tested, and the grounding wire can be hung after the circuit is confirmed to be uncharged by testing. Before the earth connection to inside and indoor transformer substation inner line, the copper bar of switch board articulates, the electricity is tested to the utilization test the electric stick, then articulate the earth connection can, the operation is more convenient. However, the operation of overhead lines is cumbersome and time consuming when the lines are constructed, maintained and overhauled. The method comprises the steps of climbing to a pole point to test electricity, or testing electricity through a telescopic electricity testing rod, and then connecting a grounding wire through climbing to the top of a pole. For example, in the early preparation of 110kV to 400V construction work, construction equipment is various, and electroscope and grounding devices are tools which must be prepared. In the construction operation process, firstly, ground personnel transmit an electroscope to an operator hand on a tower through an insulating rope, and after the electroscope is tested, the operator on the tower returns the electroscope to the ground personnel through the insulating rope; then, ground personnel transmit earthing device to the tower through insulating rope again on the operating personnel hand, the operating personnel articulates the earth connection on the tower, realizes effective ground connection, hoists other operation tools again, expandes the operation project on the tower.
After the operation project on the tower is completed, the operating personnel on the tower returns the operation tools to the personnel on the ground through the insulating ropes one by one, and finally the grounding device is detached, the grounding device is transmitted back to the ground, the operating personnel on the tower safely returns to the ground, and the operation is finished.
The working process is relatively complicated, time and labor are wasted, especially when the operation is started, the electroscope and the grounding device are transmitted in times, the consumed time is long, the time that operators stay in a strong electric field on the tower is prolonged, and uncertain factors are brought to safe operation. Therefore, it is an urgent requirement to design an electricity testing grounding device with electricity testing function and convenient grounding operation.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides an electricity test earthing device that has the function of testing electricity, and ground connection convenient operation.
The technical scheme of the technical problem to be solved by the invention is as follows: test electric earthing device, its characterized in that: the device comprises a handle, an extension rod, a detection grounding rod and a grounding wire, wherein two ends of the extension rod are detachably connected with the handle and the detection grounding rod respectively; the handle is provided with a winding disc, and a traction wire is wound on the winding disc; an electroscope is arranged at the end part of the detection grounding rod, a wire clamping hook is arranged on the side surface of the detection grounding rod, a traction pulley is arranged at the lower part of the wire clamping hook, and a grounding wire connecting clamping seat is arranged at the lower part of the traction pulley; the upper part of the grounding wire connecting clamping seat is provided with a connecting seat self-locking mechanism; the free end of the traction wire is wound on the traction pulley, and the end part of the traction wire is provided with a ground wire hook for hooking a ground wire; the end part of the grounding wire is provided with a grounding clamp connector, the upper part of the grounding clamp connector is provided with a hanging ring or a hanging hole, and the side surface of the grounding clamp connector is provided with a bulge or a groove for self-locking.
Preferably, the detection grounding rod is a hollow tube, and the grounding wire connection clamping seat is arranged inside the tube cavity of the detection grounding rod; the inside of detecting the earthed pole lumen is located to the traction pulley, the position that corresponds traction pulley on the lateral wall of detection earthed pole is equipped with the through wires hole, the pull wire gets into the inside of detecting the earthed pole lumen through the through wires hole.
Preferably, the grounding wire connecting clamping seat is cylindrical, the lower end of the grounding wire connecting clamping seat is a horn-shaped inner wall for guiding the grounding clamping head in, and an arc-shaped elastic sheet is arranged on the inner wall of the grounding wire connecting clamping seat for reinforcing the electrical connection with the grounding clamping head.
Preferably, the handle comprises a ring-shaped hand-holding part and a tubular connecting part; the winding disc is rotatably arranged in a cavity of the handheld part; the outer side of the winding disc is provided with a groove for winding a traction wire, and the inner side of the winding disc is provided with a driving gear; the upper part of the handheld part is provided with a traction wire outlet; a driving through hole is formed in the position, corresponding to the driving gear, of the handheld part; a rotating gear is arranged in the hand-held part corresponding to the position of the driving through hole, and the rotating gear is meshed with the driving gear; the end part of the rotating gear is provided with a crank jack; the upper end of connecting portion is equipped with the interface of can dismantling the connection with extension rod or detection earth pole.
Preferably, the driving through holes are symmetrically formed in two sides of the handheld portion, two ends of the rotating gear are rotatably connected with the driving through holes, and the crank jacks are through holes.
Preferably, the position of the outer side of the handheld part corresponding to the driving through hole is provided with a driving motor, and a rotating shaft of the driving motor is fixedly connected with the rotating gear.
Preferably, a locking mechanism is also arranged;
the locking mechanism comprises a guide pipe, the guide pipe is arranged at the lower part of the interior of the detection grounding rod, and the lower end of the guide pipe is in a horn shape and used for guiding the grounding clamping joint; a locking mechanism mounting hole is formed in the side wall of the guide pipe, an electromagnet is arranged in the locking mechanism mounting hole, and an armature of the electromagnet is connected with the push rod through a spring; the grounding clamping joint is a cylinder, and the middle part of the grounding clamping joint is provided with a clamping groove; when the electromagnet pushes out the push rod, the push rod enters the guide pipe, the grounding clamping joint enters the guide pipe, the push rod is pushed into the locking mechanism mounting hole, and when the clamping groove of the grounding clamping joint slides to the position of the locking mechanism mounting hole, the push rod enters the clamping groove to be locked;
or the locking mechanism is an electromagnet, and an armature of the electromagnet is connected with the push rod through a spring; the utility model discloses a winding dish, including handheld portion, electro-magnet, winding dish, push rod, clamping groove, the electro-magnet is located the inside of handheld portion and the push rod of electro-magnet is perpendicular with the side of winding dish, be equipped with the clamping groove on the circumference that the side of winding dish corresponds the push rod, when the electro-magnet is released the push rod back, the push rod is with the side butt of winding dish, and when the winding dish twined the position of clamping groove, the push rod inserted inside the realization locking of clamping groove.
Or the locking mechanism comprises a guide pipe, the guide pipe is arranged at the lower part of the interior of the detection grounding rod, and the lower end of the guide pipe is in a horn shape and used for guiding the grounding clamping joint; the side wall of the guide pipe is provided with a locking mechanism mounting hole, a push rod is slidably arranged in the locking mechanism mounting hole, the periphery of the guide pipe is provided with a stretching wire placing groove, an unlocking memory metal wire is arranged in the stretching wire placing groove, the end part of the unlocking memory metal wire is fixedly connected with the outer end of the push rod, a locking memory metal wire is arranged in a pipe cavity of the guide pipe, and the locking memory metal wire is fixedly connected with the inner end of the push rod; the coil winding of the control relay is connected in series with the output switch and the power supply of the electroscope; the normally open contact, the unlocking memory metal wire and the power supply of the control relay are connected in series, and the normally closed contact, the locking memory metal wire and the power supply of the control relay are connected in series.
Preferably, the inner ends of two opposite push rods are provided with magnets, and the two magnets attract each other; the outer end of the push rod is provided with a magnet, and the inside of the locking mechanism mounting hole is provided with a magnetic suction block supported by a magnetic conductive material.
Preferably, the electroscope is provided with a wireless remote control switch receiver, the handle is provided with a wireless remote control switch transmitter, and the start of the electroscope is controlled through the wireless remote control switch transmitter on the handle.
Preferably, step 1, extending or connecting a plurality of extension rods, wherein the extension rods are telescopic rods or multi-section connecting rods, and then leading the end parts of the traction wires to one ends of the extension rods close to the handle;
step 2, checking the electrification condition of the line, and unlocking the locking mechanism if the line is not electrified;
and 3, hanging the end part of the traction wire with the end part of the grounding wire, and then swinging the crank to pull the grounding wire to the upper part and inserting the grounding wire into the grounding wire connecting clamping seat.
The beneficial effects of the invention are as follows:
the electricity testing operation and the grounding operation of the overhead line can be quickly realized, and meanwhile, an operator does not need to climb a pole, so that the working strength of the operator is reduced, and the safety factor is improved.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present invention;
FIG. 2 is a schematic view of a handle of one embodiment of the present invention;
FIG. 3 is a schematic view of a handle of one embodiment of the present invention;
FIG. 4 is a schematic view of a handle of one embodiment of the present invention;
FIG. 5 is a schematic diagram of a grounding rod for detection according to an embodiment of the present invention;
FIG. 6 is a schematic view of a ground wire connection socket according to an embodiment of the invention;
FIG. 7 is a vertical cross-sectional view of a guide tube according to an embodiment of the present invention;
FIG. 8 is a horizontal cross-sectional view of a guide tube according to an embodiment of the invention;
FIG. 9 is an enlarged view of the circled area in FIG. 8;
FIG. 10 is a schematic view of a handle of one embodiment of the present invention.
In the figure:
301. a threading hole; 521. a push rod; 350. a connecting seat self-locking mechanism; 135. a crank jack; 134. a traction wire outlet; 514. locking the memory metal wire; 513. unlocking the memory metal wire; 512. stretching the wire placing groove; 411. a clamping groove; 511. a locking mechanism mounting hole; 520. an electromagnet; 510. a guide tube; 133. a drive motor; 132. a rotating gear; 131. a drive through hole; 112. a drive gear; 130. a hand-held portion; 120. a connecting portion; 410. a ground card connector; 1111. a ground wire hook; 340. the grounding wire is connected with the clamping seat; 330. a traction sheave; 320. a wire clamping hook; 310. an electroscope; 111. drawing wires; 110. a winding disc; 400. a ground line; 300. detecting a grounding rod; 200. an extension pole; 100. a handle;
Detailed Description
In order to make the technical solution and the advantages of the present invention clearer, the following explains embodiments of the present invention in further detail.
The electricity testing grounding device comprises a handle 100, an extension rod 200, a detection grounding rod 300 and a grounding wire 400. Handle 100 is used for realizing handheld, and extension rod 200 is optional accessory, when carrying out the electricity of testing of indoor cabinet body equipment, need not to use extension rod 200 just can contact electrically conductive parts such as copper bar of the internal portion of high-voltage board cabinet, and when carrying out the ground connection of outside overhead line, test the electricity operation, need utilize extension rod 200 to carry out extension treatment to detecting grounding rod 300. For the convenience of connection, the two ends of the extension rod 200 are detachably connected with the handle 100 and the detection grounding rod 300 respectively, wherein the detachable connection can be realized by adopting a clamping connection or a screw connection mode.
In order to realize the electricity testing and the grounding device, the end of the detection grounding rod 300 is provided with an electroscope 310, and the side of the detection grounding rod 300 is provided with a wire clamping hook 320.
When the overhead line is grounded, the ground wire needs to be hung on the upper part of the overhead line, and the overhead line has a certain height and the ground wire 400 is a metal wire, which is very heavy, so that the overhead line is very inconvenient to hang on the ground. In order to solve the problem, a mode of hanging the connecting wire is designed. In this regard, a winding disc 110 is provided on the handle 100, and a traction wire 111 is wound on the winding disc 110, and a high strength filament may be used to ensure light weight and strength. The pulling wire 111 is pulled out before the hitch is mounted, and after the hitch is mounted, the ground wire 400 is electrically connected to the wire-catching hook 320 via the pulling wire 111. Specifically, the method comprises the following steps:
the handle 100 includes a ring-shaped hand-held portion 130 and a tubular connecting portion 120. As shown in fig. 2, the handle 130 has a hollow tubular structure. The winding disc 110 is rotatably disposed inside the cavity of the handle 130. The winding disc is annular, the outer edge of the winding disc is provided with a groove for placing a traction wire 111, and the inner side of the winding disc is provided with a driving gear 112 for realizing the rotation driving of the winding disc 110. A traction wire outlet 134 is provided at an upper portion of the handle 130. In order to realize fixation, plane bearings are arranged on two sides of the plane of the winding disc 110 to realize the rotary connection between the winding disc 110 and the interior of the handheld part 130.
The hand-held portion 130 is provided with a driving through hole 131 at a position corresponding to the driving gear 112, and in order to improve stability, the driving through hole 131 is a through hole penetrating the hand-held portion 130, that is, the driving through holes 131 are symmetrically arranged at two sides of the hand-held portion 130. A rotating gear 132 is arranged in the handheld portion 130 at a position corresponding to the driving through hole 131, two ends of the rotating gear 132 are rotatably connected with the outer edge of the driving through hole 131 through bearings, and the middle part of the rotating gear 132 is meshed with the driving gear 112. For driving convenience, the end of the rotating gear 132 is provided with a crank insertion hole 135, and the crank insertion hole 135 may be a through hole, and the crank insertion hole 135 coincides with the axis of the driving through hole 131.
The upper end of the connecting part 120 is provided with an interface detachably connected with the extension rod 200 or the detection grounding rod 300, and an internal thread or an external thread can be arranged as the interface for reliable connection.
Preferably, in order to reduce labor consumption and labor intensity, a driving motor 133 is disposed at a position corresponding to the driving through hole 131 on the outer side of the handheld portion 130, and a rotating shaft of the driving motor 133 is fixedly connected with the rotating gear 132. Wherein the drive motor 133 may be provided with a reduction motor.
In order to facilitate the sliding or rolling of the traction wire 111, a traction pulley 330 is provided at a lower portion of the wire-clamping hook 320. In this embodiment, the detection grounding rod 300 is tubular, the traction pulley 330 is disposed inside the lumen of the detection grounding rod 300, in order to facilitate the traction wire 111 to penetrate into the lumen, a threading hole 301 is formed in the wall of the detection grounding rod 300, and an edge of the traction pulley 330 extends to the outside of the threading hole 301. The free end of the traction wire 111 is wound on the traction pulley 330, and the end of the traction wire 111 is provided with a ground wire hook 1111 for hooking a ground wire.
In order to electrically connect the ground wire 400 and the wire clamping hook 320, a ground wire connection clamping seat 340 is disposed at a lower portion of the traction pulley 330, and the ground wire connection clamping seat 340 is electrically connected to the wire clamping hook 320 through a conducting wire. Correspondingly, the end of the ground wire is provided with a ground clip 410, and the upper part of the ground clip 410 is provided with a hanging ring or a hanging hole for hanging the ground wire hook 1111. Due to the action of the gravity of the grounding wire or the downward sliding of the grounding wire, in order to prevent the downward sliding of the grounding wire, a protrusion or a groove for self-locking is arranged on the side surface of the grounding clamping joint 410. Correspondingly, the upper part of the grounding wire connection clamping seat 340 is provided with a connecting seat self-locking mechanism 350.
In order to facilitate the ground card connector 410 to enter the ground wire connection card holder 340, as shown in fig. 6, the ground wire connection card holder 340 is cylindrical and has a lower end with an inner wall in a horn shape for guiding the ground card connector 410. Further, an arc-shaped elastic sheet is disposed on the inner wall of the ground wire connection clamping seat 340 for enhancing the electrical connection with the ground clamping connector 410.
Preferably, in order to control the electroscope conveniently, the electroscope 310 is provided with a wireless remote control switch receiver, the handle 100 is provided with a wireless remote control switch transmitter, and the wireless remote control switch transmitter on the handle 100 is used for controlling the starting of the electroscope 310.
Further, in order to block the connection of the ground wire when the electrification is detected, a locking mechanism is provided, and the locking mechanism may be provided on the upper portion of the detection ground rod 300 or on the upper portion of the handle 100. Specifically, the following modes are included.
The locking mechanism is provided in a manner of detecting the upper portion of the ground rod 300. In this manner, the locking mechanism includes a guide tube 510. The guide tube 510 is disposed inside the lumen of the detection ground rod 300 and is located at the lower portion of the wire-catching hook 320. The middle part of the guide tube 510 is provided with a through hole along the axial direction. The outer wall of the guide tube 510 is fixedly connected with the inner wall of the detection grounding rod 300. In order to facilitate the ground engaging head 410 to enter the inside of the through hole of the guide tube 510, the lower end of the through hole of the guide tube 510 is flared. The ground card connector 410 is a cylinder and has the same shape as the cross-section of the upper portion of the through hole of the guide tube 510, and a card slot is formed in the middle of the ground card connector 410 to lock the ground card connector 410. Correspondingly, a locking mechanism mounting hole 511 is formed in the side wall of the guide tube 510, an electromagnet 520 is arranged inside the locking mechanism mounting hole 511, and an armature of the electromagnet 520 is connected with the push rod 521 through a spring.
The ground card connector 410 is blocked with the ejector pin. Alternatively, the end of the plunger 521 is hemispherical, and correspondingly, the upper end of the ground snap 410 is also hemispherical, so as to push the plunger 521 into the locking mechanism mounting hole 511. After the electroscope 310 detects an electrified signal, the electroscope 310 sends an alarm signal, and an output interface of the electroscope 310 also sends a control signal, the electromagnet 520 receives the control signal and then conducts to push out the push rod 521, at the moment, the end part of the push rod 521 is positioned inside the through hole of the guide tube 510, if misoperation is carried out, after the grounding clamp joint 410 enters the through hole of the guide tube 510, the end part of the push rod 521 is abutted against the outer wall of the grounding clamp joint 410, when the clamp groove 411 of the grounding clamp joint 410 slides to the position of the locking mechanism mounting hole 511, the push rod 521 is inserted into the clamp groove 411 under the action of elasticity to realize locking, and grounding under the electrified condition is prevented.
Alternatively, the locking mechanism comprises a guide tube 510, the guide tube 510 is arranged at the lower part of the inside of the detection grounding rod 300, and the lower end of the guide tube 510 is flared to realize the introduction of the grounding clamping joint 410; be equipped with locking mechanical system mounting hole 511 on the lateral wall of stand pipe 510, the inside push rod that slides of locking mechanical system mounting hole 511, the periphery of stand pipe 510 is equipped with tensile line standing groove 512, tensile line standing groove 512 is inside to be equipped with unblock memory wire 513, the tip of unblock memory wire 513 and the outer end fixed connection of push rod, the push rod is equipped with two at least to evenly set up on the circumferencial direction, still be equipped with the wire through-hole on the lateral wall of stand pipe 510, disconnection and through insulating material fixed connection in the middle of one section unblock memory wire 513 to two endpoints of the department of disconnection pass through wire and outside power electrical connection.
A locking memory wire 514 is arranged in the lumen of the guide tube 510, and the locking memory wire 514 is fixedly connected with the inner end of the push rod. By disconnecting the middle portion of the one end locking memory wire 514 and fixedly connecting it as a whole with an insulating material as shown in fig. 9, the two end points at the disconnected portion of the locking memory wire 514 are electrically connected to an external power source through a wire, which is also led to the outside of the guide tube 510 through the wire through hole.
The coil winding of the control relay is connected in series with the output switch of the electroscope and the power supply; the normally open contact of the control relay, the unlocking memory metal wire 513 and the power supply are connected in series, and the normally closed contact of the control relay, the locking memory metal wire 514 and the power supply are connected in series.
At this time, after the electroscope 310 detects the electrified signal, the electroscope 310 sends out an alarm signal, and when the electrification is not detected, the output interface of the electroscope 310 also gives out a control signal which is used as a switch to be connected in series with a coil winding of the control relay, and then a circuit after the series connection is connected with a power supply. At this time, if the charging is not performed, the unlocking memory wire 513 is charged, and as shown in fig. 8, the unlocking memory wire 513 pulls the push rod 521 into the locking mechanism mounting hole 511, and contact-locks. If electrified or under the state of not detecting, the normally closed contact of control relay is that locking memory wire 514 is electrified, and at this moment under the effect of pulling force, four push rods draw close to the middle part, and then can insert the inside of joint groove 411 when the maloperation, realize the locking.
Further, a conductive spring is connected to the middle of each segment of the locking memory wire 514.
Preferably, in order to realize energy conservation and reduce hidden troubles caused by long-term electrification, the inner ends of the two opposite push rods are provided with magnets, and the two magnets attract each other. The outer end of the push rod is provided with a magnet, and the inside of the locking mechanism mounting hole 511 is provided with a magnetic suction block supported by a magnetic conductive material. At this time, when the lock position is reached, the ends of the push rods attract each other to lock the position, and the through hole of the guide tube 510 can be similarly closed after the power supply is turned off. The ends of the ground card connector 410 may be arranged as a plane at this time.
Or the locking mechanism is an electromagnet 520, and an armature of the electromagnet 520 is connected with the push rod through a spring; the inside of portion 130 is located to the electro-magnet 520 and the push rod of electro-magnet 520 is perpendicular with the side of winding dish 110, be equipped with joint groove 411 on the circumference that the side of winding dish 110 corresponds the push rod, and after the electro-magnet 520 released the push rod, the push rod was with the side butt of winding dish 110, and when winding dish 110 twined the position in joint groove 411, the push rod inserted inside the realization locking in joint groove 411. At this time, when the electrified signal is detected, the rotation of the winding disc 110 may be locked, and thus, an accident caused by a wrong operation may be prevented.
By applying the technical scheme, the invention also discloses a using method of the electricity testing grounding device, which comprises the following steps:
step 1, extending or connecting a plurality of extension rods 200 to the extension rods 200, wherein the extension rods 200 are telescopic rods or a plurality of sections of connecting rods, and then leading the end parts of the traction wires 111 to one ends of the extension rods close to the handle 100. If the operation of electricity testing and grounding of the overhead line is carried out outdoors, a plurality of extension rods 200 need to be connected, and if the high-voltage cabinet body of an indoor transformer substation is used, the extension rods 200 do not need to be connected or one extension rod 200 is connected. In this embodiment, the extension rod 200 and the detection ground rod 300 are both hollow and tubular, and the ground wire connection socket 340 and the ground socket connector 410, which are connected to the ground, are disposed inside the tube cavity for connection, and at this time, when the extension rod is connected, the pull wire 111 needs to be pulled out and then passed through the inside of each extension rod 200 to expose the ground wire hook 1111.
And 2, testing the electrification condition of the line, and unlocking the locking mechanism if the line is not electrified. The output interface of the electroscope 310 can be electrically connected with the locking mechanism through a wire, and can also realize the transmission of control signals in a wireless mode, at this time, a wireless receiving module is required to be arranged in the electroscope 310 at the position where the locking mechanism is located. Because only a single control signal is transmitted, the wireless remote control switch can be adopted for realizing.
And 3, hanging the end part of the traction wire 111 and the end part of the grounding wire, and then swinging the crank to pull the grounding wire to the upper part and inserting the grounding wire into the grounding wire connecting clamping seat 340. Or the pneumatic driving motor 133 drives the winding disc 110 to rotate, and the grounding clamp connector 410 is inserted into the grounding wire connection clamp seat 340 to realize electrical connection.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and various changes and modifications can be made by workers in the light of the above description without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and all equivalent changes and modifications in the shape, structure, characteristics and spirit described in the scope of the claims of the present invention are included in the scope of the claims of the present invention.
Claims (9)
1. Test electric earthing device, its characterized in that:
comprises a handle (100), an extension rod (200), a detection grounding rod (300), a grounding wire (400) and a locking mechanism; two ends of the extension rod (200) are respectively detachably connected with the handle (100) and the detection grounding rod (300);
the handle (100) is provided with a winding disc (110), and a traction wire (111) is wound on the winding disc (110);
an electroscope (310) is arranged at the end part of the detection grounding rod (300), a wire clamping hook (320) is arranged on the side surface of the detection grounding rod (300), a traction pulley (330) is arranged at the lower part of the wire clamping hook (320), and a grounding wire connecting clamping seat (340) is arranged at the lower part of the traction pulley (330); the upper part of the grounding wire connecting clamping seat (340) is provided with a connecting seat self-locking mechanism (350);
the free end of the traction wire (111) is wound on the traction pulley (330), and the end part of the traction wire (111) is provided with a ground wire hook (1111) for hooking a ground wire (400);
the end part of the grounding wire (400) is provided with a grounding clamp connector (410), the upper part of the grounding clamp connector (410) is provided with a hanging ring or a hanging hole, and the side surface of the grounding clamp connector (410) is provided with a protrusion or a groove for self-locking;
the locking mechanism comprises a guide pipe (510), the guide pipe (510) is arranged at the lower part of the inner part of the detection grounding rod (300), and the lower end of the guide pipe (510) is in a horn shape to realize the leading-in of the grounding clamping joint (410); a locking mechanism mounting hole (511) is formed in the side wall of the guide pipe (510), a push rod is arranged in the locking mechanism mounting hole (511) in a sliding mode, a stretching wire placing groove (512) is formed in the periphery of the guide pipe (510), an unlocking memory metal wire (513) is arranged in the stretching wire placing groove (512), the end portion of the unlocking memory metal wire (513) is fixedly connected with the outer end of the push rod, a locking memory metal wire (514) is arranged in the pipe cavity of the guide pipe (510), and the locking memory metal wire (514) is fixedly connected with the inner end of the push rod; the coil winding of the control relay is connected in series with the output switch and the power supply of the electroscope; the normally open contact, the unlocking memory metal wire (513) and the power supply of the control relay are connected in series, and the normally closed contact, the locking memory metal wire (514) and the power supply of the control relay are connected in series.
2. The electroscopic grounding device of claim 1, wherein:
the detection grounding rod (300) is a hollow pipe, and the grounding wire connection clamping seat (340) is arranged inside a pipe cavity of the detection grounding rod (300); the inside of detecting earthing rod (300) lumen is located in traction pulley (330), the position that corresponds traction pulley (330) on the lateral wall of detecting earthing rod (300) is equipped with through wires hole (301), haulage wire (111) get into the inside of detecting earthing rod (300) lumen through wires hole (301).
3. The electroscopic grounding device of claim 1, wherein:
the grounding wire connecting clamping seat (340) is cylindrical, the lower end of the grounding wire connecting clamping seat is a horn-shaped inner wall for guiding the grounding clamping joint (410), and an arc-shaped elastic sheet is arranged on the inner wall of the grounding wire connecting clamping seat (340) and used for strengthening the electrical connection with the grounding clamping joint (410).
4. The electroscopic grounding device of claim 1, wherein:
the handle (100) comprises a ring-shaped hand-holding part (130) and a tubular connecting part (120);
the hand-held part (130) is of a hollow structure, and the winding disc (110) is rotatably arranged in a cavity of the hand-held part (130);
a groove is formed in the outer side of the winding disc (110) and used for winding a traction wire (111), and a driving gear (112) is arranged on the inner side of the winding disc (110); the upper part of the handheld part (130) is provided with a traction wire outlet (134);
a driving through hole (131) is formed in the position, corresponding to the driving gear (112), of the handheld part (130); a rotating gear (132) is arranged in the handheld part (130) at a position corresponding to the driving through hole (131), and the rotating gear (132) is meshed with the driving gear (112);
a crank insertion hole (135) is formed in the end part of the rotating gear (132);
the upper end of the connecting part (120) is provided with an interface detachably connected with the extension rod (200) or the detection grounding rod (300).
5. The electroscopic grounding device of claim 4, wherein:
the drive through hole (131) symmetry sets up the both sides in handheld portion (130), the both ends and the drive through hole (131) of rotating gear (132) rotate and are connected, the crank jack is the through-hole that runs through.
6. The electroscopic grounding device of claim 5, wherein:
the position of the outer side of the handheld part (130) corresponding to the driving through hole (131) is provided with a driving motor (133), and a rotating shaft of the driving motor (133) is fixedly connected with the rotating gear (132).
7. The electroscopic grounding device of claim 1, wherein:
wherein, the inner ends of two opposite push rods are provided with magnets which attract each other;
the outer end of the push rod is provided with a magnet, and a magnetic suction block supported by a magnetic conductive material is arranged in the locking mechanism mounting hole (511).
8. The electroscopic grounding device of claim 1, wherein:
the electroscope (310) is provided with a wireless remote control switch receiver, the handle (100) is provided with a wireless remote control switch transmitter, and the start of the electroscope (310) is controlled through the wireless remote control switch transmitter on the handle (100).
9. The method of using an electroscopic grounding device according to claim 1, which comprises:
step 1, extending or connecting a plurality of extension rods (200) to the extension rods, wherein the extension rods (200) are telescopic rods or a plurality of sections of connecting rods, and then leading the end parts of traction wires (111) to one ends of the extension rods close to a handle (100);
step 2, checking the electrification condition of the line, and unlocking the locking mechanism if the line is not electrified;
and 3, hanging the end part of the traction wire (111) and the end part of the grounding wire, and then swinging the crank to pull the grounding wire to the upper part and inserting the grounding wire into the grounding wire connecting clamping seat (340).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2582405B1 (en) * | 1985-05-21 | 1987-11-27 | Catu Ets | VOLTMETRIC CONTROLLER FOR AERIAL ELECTRICAL NETWORKS |
| JP2000335286A (en) * | 1999-05-25 | 2000-12-05 | East Japan Railway Co | Grounding device with electroscope |
| CN2588564Y (en) * | 2002-06-11 | 2003-11-26 | 刘叔铭 | Grounding wire with alarm |
| US9561068B2 (en) * | 2008-10-06 | 2017-02-07 | Virender K. Sharma | Method and apparatus for tissue ablation |
| CN206863109U (en) * | 2017-07-03 | 2018-01-09 | 国网冀北电力有限公司唐山供电公司 | The embedded ground connection wire type electricity-detection grounding device of one kind |
| CN208461134U (en) * | 2018-05-05 | 2019-02-01 | 丁美玥 | It is a kind of can auto spiral data line |
| CN208797208U (en) * | 2018-08-09 | 2019-04-26 | 保定市恒信达电气有限公司 | A kind of electrical verification formula ground connection clamp device |
| CN110439372A (en) * | 2019-07-29 | 2019-11-12 | 浙江浦江梅花锁业集团有限公司 | A kind of intelligent padlock by memory wire driving unlock |
| CN211955640U (en) * | 2020-03-24 | 2020-11-17 | 郑州铁路职业技术学院 | Special electroscope of railway power supply contact network |
| CN112186618A (en) * | 2020-08-24 | 2021-01-05 | 国家电网有限公司 | Ground wire hooking device for power transmission line maintenance |
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