CN218449133U

CN218449133U - Put portable earth connection mounting tool of handcart PT cabinet in

Info

Publication number: CN218449133U
Application number: CN202222401538.6U
Authority: CN
Inventors: 陈思洋; 张衡; 周龚娇; 胡鹏飞; 倪少剑; 邓兆东; 薛勇; 杨娇
Original assignee: Hubei Qingjiang Hydroelectric Development Co ltd
Current assignee: Hubei Qingjiang Hydroelectric Development Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-02-03
Anticipated expiration: 2032-09-09

Abstract

A portable grounding wire installation tool for a centrally-mounted handcart PT cabinet comprises a contact device and a clamping device, wherein the contact device is connected with the clamping device through a conducting wire; the contact device comprises a conductive rod part, a plum blossom contact is installed at one end of the conductive rod part, an insulating handle is sleeved on the conductive rod part, the other end of the conductive rod part is fixedly connected with a wire, and an insulating rear cover is installed at the end part, connected with the wire, of the conductive rod part. The contact device is connected with a fixed contact in a PT cabinet through a plum blossom contact, an insulating handle is sleeved outside the conductive rod part, effective insulating performance is provided when the plum blossom contact is connected with the fixed contact, meanwhile, the insulating rear cover wraps the connecting part of the conducting wire and the conducting rod part, the conducting wire and the joint of the conducting wire and the conducting rod part are not exposed, and therefore the conducting rod part is located at one end of the insulating handle to form good insulation, and the conducting rod part is connected with an external grounding wire or a grounding pile through a clamping device to complete hanging of the grounding wire.

Description

Put portable earth connection mounting tool of handcart PT cabinet in

Technical Field

The utility model relates to a power equipment and circuit maintenance technical field especially relate to a put portable earth connection mounting tool of handcart PT cabinet in.

Background

When power equipment and circuit are overhauled, in order to prevent the operating personnel from getting an electric shock, the overhauling equipment is usually required to be grounded. The earth connection is essential in power equipment and circuit maintenance, and current earth connection roughly divide into two kinds, one kind is hand-held formula earth connection, one kind is flat mouthful of rotation type earth connection, and current earth connection exists and can not be narrow and small space internal clamping fixed head again, and the intensity that presss from both sides tightly can lead to fixed head to damage, influences PT body normal use.

For grounding of a 6kV switch cabinet, a common load switch is provided with a grounding switch, and a PT on a bus is not provided with the grounding switch. The operation of hanging the grounding wire on the bus in the bus power failure requires an operator to manually hang the external grounding wire. Therefore, it is necessary to design an external ground wire installation tool which can be conveniently connected with a fixed contact in a PT cabinet.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the problem that exists among the above-mentioned background art is solved, provide a put portable earth connection mounting tool of handcart PT cabinet in, through contact device and clamping device, can be convenient with PT cabinet internal static contact with outside earth connection or ground connection stake be connected, accomplish hanging of earth connection and establish.

In order to realize the technical characteristics, the purpose of the utility model is realized as follows: a portable grounding wire installation tool for a centrally-mounted handcart PT cabinet comprises a contact device and a clamping device, wherein the contact device is connected with the clamping device through a conducting wire; the contact device comprises a conductive rod part, a plum blossom contact is installed at one end of the conductive rod part, an insulating handle is sleeved on the conductive rod part, the other end of the conductive rod part is fixedly connected with a wire, and an insulating rear cover is installed at the end part, connected with the wire, of the conductive rod part.

Electrically conductive pole portion is including contact portion, shoulder and pole portion, the contact position is in the one end of electrically conductive pole portion, the contact portion is connected with the plum blossom contact cooperation, the shoulder is located the rear end of contact portion, pole portion one end is connected with the shoulder, pole portion other end tip is equipped with first screw hole and external screw thread, insulating handle suit is on pole portion, first line nose one end be equipped with first screw hole complex screw rod portion, the other end is equipped with the mounting hole that is used for inserting and compresses tightly the wire, thereby first line nose passes through screw rod portion and first screw hole screw-thread fit and is connected fixedly with pole portion, the lid connects soon on the external screw thread of pole portion after insulating.

The insulating handle comprises a pressure part and a handheld part, the pressure part and the handheld part are cylindrical with a center hole, and the diameter of the pressure part is larger than that of the handheld part.

Clamping device includes big arm lock, little arm lock, compresses tightly handle and fixed handle, the gliding installation of little arm lock is in big arm lock, compresses tightly the handle and big arm lock threaded connection back, and the tip rotates with little arm lock to be connected, fixed handle detachable installs on big arm lock, and the wire is connected with big arm lock.

Big arm lock is C type groove structure, and the tank bottom middle part of big arm lock is equipped with the spout, and one side cell wall is equipped with the second screw hole, little arm lock one side is equipped with the sleeve pipe, is equipped with the slider with sleeve pipe vertically one side, the compression handle includes the screw rod, and the one end of screw rod is equipped with the annular, and the other end is equipped with insulating twist grip, slider and spout sliding fit direction are connected, and the screw rod is equipped with the one end screw in second screw hole of annular, and the tip inserts the intraductal.

The both sides of big arm lock are equipped with the recess, and fixed handle one end is equipped with the draw-in groove, and fixed handle makes fixed handle and big arm lock be connected through the cooperation of draw-in groove and recess, one side that big arm lock is located the draw-in groove is equipped with third screw hole and fourth screw hole, passes through the bolt fastening in third screw hole department behind the through-hole at fixed handle middle part, and fixed handle is located draw-in groove department and is equipped with the fixed orifices, and the bolt passes and is connected with the fourth screw hole behind the fixed orifices.

The end part of the wire is provided with a second wire nose which is arranged at the third threaded hole.

The utility model discloses there is following beneficial effect:

1. the clamping device is used for clamping an external grounding wire or a grounding pile, so that the tool can conveniently connect the internal static contact of the PT cabinet with the external grounding wire or the grounding pile to form the hanging of the grounding wire.

2. The contact portion is connected with the plum blossom contact cooperation, and the shoulder is used for fixing a position insulating handle, prevents that insulating handle from sliding forward when exerting oneself, and the wire passes through first line nose and conducting rod portion threaded connection, and the junction structure is small and exquisite, firm in connection, just can be complete behind the insulating back lid of installation cover the joint department of covering first line nose and wire, has guaranteed the security when this instrument uses.

3. The insulating handle includes pressure portion and handheld portion, and the pressure portion slides when being used for preventing hand power, and handheld portion is used for holding.

4. Set up clamping device, rotatory pressing handle makes little arm lock draw close to big arm lock to centre gripping outside earth connection or ground connection stake, overall structure is simple, and it is convenient to adjust.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of a three-dimensional structure of the contact device of the present invention.

Fig. 3 is a schematic view of the explosion structure of the contact device of the present invention.

Fig. 4 is a schematic sectional view of the contact device of the present invention.

Fig. 5 is a schematic view of the three-dimensional structure of the clamping device of the present invention.

Fig. 6 is an exploded view of the clamping device of the present invention.

Fig. 7 is an exploded view of another view angle of the clamping device of the present invention.

Fig. 8 is a schematic sectional view of the clamping device of the present invention.

Fig. 9 is a schematic structural view of another embodiment of the present invention, in which three contact devices are provided.

In the figure: the contact device 10, the conductive rod part 11, the contact part 111, the shoulder part 112, the rod part 113, the external thread 114, the first threaded hole 115, the tulip contact 12, the insulating handle 13, the pressure part 131, the handheld part 132, the insulating rear cover 14, the first wire nose 15, the screw part 151 and the mounting hole 152;

the clamping device 20, the large clamping arm 21, the sliding groove 211, the second threaded hole 212, the groove 213, the third threaded hole 215, the fourth threaded hole 216, the small clamping arm 22, the sleeve 221, the slider 222, the pressing handle 23, the screw 231, the annular groove 232, the rotating handle 233, the fixing handle 24, the clamping groove 241, the through hole 242, the fixing hole 243 and the second wire nose 25;

and a wire 30.

Detailed Description

The following describes embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1-8, a portable grounding wire installation tool for a centrally-mounted handcart PT cabinet comprises a contact device 10 and a clamping device 20, wherein the contact device 10 and the clamping device 20 are connected through a wire 30; contact device 10 includes conductive rod portion 11, and plum blossom contact 12 is installed to conductive rod portion 11's one end, and insulating handle 13 suit is on conductive rod portion 11, and conductive rod portion 11's the other end is connected fixedly with wire 30, and lid 14 after insulating is installed with the tip that wire 30 is connected to conductive rod portion 11. The contact device 10 is connected with a fixed contact in a PT cabinet through a plum blossom contact 12, an insulating handle 13 is sleeved outside a conductive rod part 11, effective insulating performance is provided for the plum blossom contact 12 and the fixed contact when the plum blossom contact 12 is connected, meanwhile, a connecting part of a lead 30 and the conductive rod part 11 is wrapped by an insulating rear cover 14, the lead 30 and the joint of the lead 30 and the conductive rod part 11 are not exposed, and therefore one end, located at the insulating handle 13, of the conductive rod part 11 forms good insulation, and the conductive rod part is connected with an external grounding wire or a grounding pile through a clamping device 20 to form hanging of the grounding wire.

Through above-mentioned structure, can be convenient with the PT cabinet internal static contact with outside earth connection or ground connection stake be connected, form hanging of earth connection and establish.

Preferably, in order to ensure the conductivity of the conductive rod portion 11, the conductive rod portion 11 is made of copper. The tulip contact 12 uses the GC series.

Specifically, referring to fig. 2 to 4, the conductive rod 11 includes a contact portion 111, a shoulder portion 112 and a rod portion 113, the contact portion 111 is located at one end of the conductive rod 11, the contact portion 111 is inserted into the tulip contact 12, and the structure of the contact portion corresponds to that of the tulip contact 12, so that the contact portion 111 is connected to the tulip contact 12 in a matching manner. Shoulder 112 is used to position insulated handle 13 to prevent insulated handle 13 from sliding forward when forced, and shoulder 112 is located at the rear end of contact portion 111. The pole 113 one end is connected with shoulder 112, pole 113 other end tip is equipped with first screw hole 115 and external screw thread 114, insulating handle 13 suit is on pole 113, first line nose 15 one end is equipped with the screw rod portion 151 with first screw hole 115 complex, the other end is equipped with the mounting hole 152 that is used for inserting and compressing tightly wire 30, thereby first line nose 15 passes through screw rod portion 151 and first screw hole 115 screw-thread fit and is connected fixedly with pole 113, lid 14 connects soon on the external screw thread 114 of pole 113 after insulating. The copper wire of the wire 30 is inserted into the mounting hole 152 of the first wire nose 15 and is pressed tightly by the hydraulic pliers, the wire 30 is in threaded connection with the conductive rod part 11 through the first wire nose 15, the connection part has a small and exquisite structure and is firmly connected, referring to fig. 4, the insulation rear cover 14 is mounted to completely cover the connection part of the first wire nose 15 and the wire 30, and the safety of the tool in use is ensured.

Specifically, referring to fig. 2-4, the insulated handle 13 includes a pressure portion 131 and a handle portion 132, the pressure portion 131 and the handle portion 132 are cylindrical with a central hole, and the diameter of the pressure portion 131 is larger than that of the handle portion 132. The pressure portion 131 is used to prevent slipping when the hand is forcefully used, and the grip portion 132 is used for hand gripping. The pressure portion 131 and the hand-held portion 132 may be of unitary construction or may be two separate parts.

Referring to fig. 5-8, the clamping device 20 includes a large clamping arm 21, a small clamping arm 22, a pressing handle 23 and a fixing handle 24, the small clamping arm 22 is slidably installed in the large clamping arm 21, after the pressing handle 23 is connected with the large clamping arm 21 through a screw thread, the end of the pressing handle 23 is rotatably connected with the small clamping arm 22, the fixing handle 24 is detachably installed on the large clamping arm 21, and a wire 30 is connected with the large clamping arm 21. The fixed handle 24 is made of insulating materials and used for holding and fixing, and the small clamping arm 22 is closed to the large clamping arm 21 through rotating the pressing handle 23, so that an external grounding wire or a grounding pile is clamped.

Specifically, referring to fig. 6-8, the large clamping arm 21 is a C-shaped groove structure, the middle of the bottom of the large clamping arm 21 is provided with a sliding groove 211, the wall of one side of the large clamping arm 21 is provided with a second threaded hole 212, one side of the small clamping arm 22 is provided with a sleeve 221, one side perpendicular to the sleeve 221 is provided with a sliding block 222, the pressing handle 23 comprises a screw rod 231, one end of the screw rod 231 is provided with a circular groove 232, the other end of the screw rod is provided with an insulated rotating handle 233, and the rotating handle 233 is made of an insulating material. The sliding block 222 is connected with the sliding groove 211 in a sliding fit and guiding manner, one end of the screw 231, which is provided with the annular groove 232, is screwed into the second threaded hole 212, the end of the screw is inserted into the sleeve 221, and the mounting bolt on the sleeve 221 is clamped into the annular groove 232, so that the screw 231 is positioned. The small clamping arms 22 are pushed to move to clamp an external grounding wire or a grounding pile by rotating the pressing handles 23, so that the whole structure is simple, and the adjustment is convenient.

In order to enable the insulated fixing handle 24 and the large clamping arm 21 to be firmly and stably connected, two sides of the large clamping arm 21 are provided with a groove 213, one end of the fixing handle 24 is provided with a clamping groove 241, the fixing handle 24 enables the fixing handle 24 to be connected with the large clamping arm 21 through the matching of the clamping groove 241 and the groove 213, one side of the large clamping arm 21, which is positioned in the clamping groove 241, is provided with a third threaded hole 215 and a fourth threaded hole 216, and the lead 30 passes through a through hole 242 in the middle of the fixing handle 24 and then is fixed at the third threaded hole 215 through a bolt, so that the connection joint of the lead 30 and the large clamping arm 21 is hidden inside the fixing handle 24. The fixing handle 24 is provided with a fixing hole 243 at the position of the clamping groove 241, and a bolt passes through the fixing hole 243 and then is connected with the fourth threaded hole 216, so that the fixing handle 24 and the large clamping arm 21 are fixed and prevented from slipping off.

Further, the end of the lead 30 is provided with a second lug 25 which is mounted at the third threaded hole 215, so that the lead 30 can be conveniently connected with the large clamping arm 21.

In order to maintain the stability of clamping, grooves are provided on the clamping sides of the large clamping arms 21 and the small clamping arms 22.

In a preferred scheme, referring to fig. 9, the portable grounding wire installation tool for the centrally-mounted handcart PT cabinet comprises three contact devices 10 and a clamping device 20, wherein the three contact devices 10 and the clamping device 20 are connected through a lead 30 to form a three-phase short-circuit grounding wire.

The utility model discloses a working process and principle:

when in use, the clamping device 20 is first connected and fixed with an external grounding wire or a grounding pile. The fixed handle 24 is held by one hand, and the pressing handle 23 is rotated by the other hand, so that the small clamping arms 22 are pushed to move, and the clamping device 20 is connected with an external grounding wire or a grounding pile.

Then, on an insulating handle 13 of the hand-held contact device 10, the tulip contact 12 is aligned with a fixed contact in the PT cabinet, and the tulip contact 12 is pushed in with force, so that the contact device 10 and the fixed contact in the PT cabinet are conveniently connected and fixed, and the grounding wire is hung.

Claims

1. The utility model provides a put portable earth connection mounting tool of handcart PT cabinet in, its characterized in that: comprises a contact device (10) and a clamping device (20), wherein the contact device (10) is connected with the clamping device (20) through a lead (30); contact device (10) are including electrically conductive pole portion (11), and plum blossom contact (12) are installed to the one end of electrically conductive pole portion (11), and insulating handle (13) suit is on electrically conductive pole portion (11), and the other end and wire (30) of electrically conductive pole portion (11) are connected fixedly, and lid (14) after insulating are installed to the tip that electrically conductive pole portion (11) and wire (30) are connected.

2. The portable grounding wire installing tool for the centrally-mounted handcart PT cabinet according to claim 1, characterized in that: conductive rod portion (11) is including contact portion (111), shoulder (112) and pole portion (113), contact portion (111) is located the one end of conductive rod portion (11), contact portion (111) is connected with plum blossom contact (12) cooperation, shoulder (112) are located the rear end of contact portion (111), pole portion (113) one end is connected with shoulder (112), pole portion (113) other end tip is equipped with first screw hole (115) and external screw thread (114), insulating handle (13) suit is on pole portion (113), first line nose (15) one end is equipped with screw rod portion (151) with first screw hole (115) complex, the other end is equipped with mounting hole (152) that are used for inserting and compress tightly wire (30), thereby first line nose (15) are connected fixedly through screw rod portion (151) and first screw hole (115) screw-thread fit with pole portion (113), lid (14) connect soon after insulating on external screw thread (114) of pole portion (113).

3. The tool for installing the portable grounding wire of the centrally-mounted handcart PT cabinet as claimed in claim 1 or 2, wherein: the insulating handle (13) comprises a pressure part (131) and a handheld part (132), the pressure part (131) and the handheld part (132) are cylindrical with a central hole, and the diameter of the pressure part (131) is larger than that of the handheld part (132).

4. The portable grounding wire installing tool for the centrally-mounted handcart PT cabinet according to claim 1, characterized in that: clamping device (20) are including big arm lock (21), little arm lock (22), compress tightly handle (23) and fixed handle (24), the gliding installation of little arm lock (22) is in big arm lock (21), compresses tightly handle (23) and big arm lock (21) threaded connection back, and the tip rotates with little arm lock (22) to be connected, fixed handle (24) detachable installs on big arm lock (21), and wire (30) are connected with big arm lock (21).

5. The tool for installing the portable grounding wire of the centrally-mounted handcart PT cabinet as claimed in claim 4, is characterized in that: big arm lock (21) are C type groove structure, and the tank bottom middle part of big arm lock (21) is equipped with spout (211), and one side cell wall is equipped with second screw hole (212), little arm lock (22) one side is equipped with sleeve pipe (221), is equipped with slider (222) with sleeve pipe (221) vertically one side, compress tightly handle (23) and include screw rod (231), and the one end of screw rod (231) is equipped with annular (232), and the other end is equipped with insulating twist grip (233), slider (222) and spout (211) sliding fit direction are connected, and screw rod (231) are equipped with the one end screw in second screw hole (212) of annular (232), and the tip inserts in sleeve pipe (221).

6. The portable grounding wire installation tool for the centrally-mounted handcart (PT) cabinet according to claim 4 or 5, wherein: the both sides of big arm lock (21) are equipped with recess (213), and fixed handle (24) one end is equipped with draw-in groove (241), and fixed handle (24) make fixed handle (24) be connected with big arm lock (21) through the cooperation of draw-in groove (241) and recess (213), one side that big arm lock (21) lie in draw-in groove (241) is equipped with third screw hole (215) and fourth screw hole (216), and through the bolt fastening in third screw hole (215) department behind through-hole (242) that wire (30) passed fixed handle (24) middle part, fixed handle (24) lie in draw-in groove (241) department and are equipped with fixed orifices (243), and the bolt passes behind fixed orifices (243) and is connected with fourth screw hole (216).

7. The tool for installing the portable grounding wire of the centrally-mounted handcart PT cabinet according to claim 6, is characterized in that: the end part of the lead (30) is provided with a second lug (25) which is arranged at a third threaded hole (215).