CN109217164B - Outdoor electric power construction appliance - Google Patents
Outdoor electric power construction appliance Download PDFInfo
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- CN109217164B CN109217164B CN201811115246.8A CN201811115246A CN109217164B CN 109217164 B CN109217164 B CN 109217164B CN 201811115246 A CN201811115246 A CN 201811115246A CN 109217164 B CN109217164 B CN 109217164B
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- cap
- hoop
- pressing cap
- ground anchor
- anchor rod
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
Abstract
The invention discloses an outdoor electric power construction appliance, which comprises a ground anchor rod and a wiring part, wherein the wiring part comprises a wiring board and a wiring part, the wiring part comprises a stud, a nut and a lead wire, and further comprises a hoop, a plurality of support rods and a fastening bolt, the hoop is in a sleeve shape, the length of each support rod is adjustable, the upper end of each support rod is hinged with the hoop, the support rods are annularly distributed around the hoop, and when each support rod rotates around a hinged point of the support rod and the hoop, the support rods are opened or closed relative to the axis of the hoop; the side wall of the hoop is also provided with a plurality of internal thread holes, the internal thread holes all penetrate through the side wall of the hoop, and each internal thread hole is internally connected with one fastening bolt in a threaded manner. This construction equipment not only can realize ground protection, can regard as simultaneously temporarily the side to draw the earth anchor, and the application occasion that has naked rock around the specially adapted anchor site can effectively improve maintainer's operating efficiency.
Description
Technical Field
The invention relates to the technical field of electric power engineering, in particular to an outdoor electric power construction appliance.
Background
In the use and maintenance process of the existing power system and rear-end electric equipment, a protection device is often required to be additionally arranged to realize system grounding connection and equipment grounding electrical connection. Such as: in the cable maintenance process, in order to guarantee the personal safety of maintenance personnel, grounding of a corresponding maintenance circuit is required before maintenance, so that electric shock injury to the maintenance personnel due to power transmission errors is avoided; when the electrical appliance is inspected and overhauled in the using process, the condition of temporary grounding also exists.
For the corresponding protection device, in the prior art, a temporary grounding anchor may be pre-buried near the grounding point, and for this occasion, an electrical connection line is used to connect the grounding anchor with a corresponding cable or equipment. However, in most cases, especially for power line grounding, a pre-buried grounding anchor is not generally provided on the site, and under such a situation, a temporary anchor rod is generally adopted to be anchored into the ground, and the corresponding to-be-repaired line is electrically connected with the ground through a lead wire.
Further optimizing the structural design of the protection device to optimize the conductive performance of the protection device is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the problem that the structural design of the further optimized protection device is provided to optimize the conductivity of the protection device, which is a problem to be solved urgently by technical personnel in the field, the invention provides an outdoor electric power construction appliance.
An outdoor electric power construction appliance comprises a ground anchor rod and a wiring part arranged on the ground anchor rod, wherein the wiring part comprises a wiring board and a wiring part, the wiring part comprises a stud, a nut and a lead wire, the wiring board is electrically connected with the ground anchor rod, one end of the stud is welded on the wiring board, the nut is in threaded connection with the stud, the wiring head of the lead wire is clamped between the wiring board and the nut, the outdoor electric power construction appliance further comprises a hoop, a plurality of supporting rods and a fastening bolt, the hoop is sleeve-shaped, the length of each supporting rod is adjustable, the upper end of each supporting rod is hinged with the hoop, the supporting rods are distributed around the hoop, and when each supporting rod rotates around a hinged joint of the supporting rod and the hoop, the supporting rods are opened or closed relative to the axis of the hoop;
the side wall of the hoop is also provided with a plurality of internal thread holes, the internal thread holes all penetrate through the side wall of the hoop, and each internal thread hole is internally connected with one fastening bolt in a threaded manner.
Among the prior art, if overhaul to outdoor power cable, often meet and need set up earthing device in order to carry out ground protection, need set up the side and draw the earth anchor to corresponding conductor portion for provide the cable and prevent rocking restraint etc.. However, for the grounding device, although the ground anchor rod included in the grounding device needs to be anchored into the ground, the ground anchor rod is not suitable to be pulled laterally in consideration of the electrical conductivity between the ground anchor rod and the ground, so as to avoid the ground anchor rod from having a large arc deflection relative to the original anchoring state after being anchored. Therefore, in the prior art, the side pull ground anchor and the grounding ground anchor are generally arranged separately, but aiming at the mountainous area where the earth surface is mostly rock, two suitable anchor sites are difficult to find, and the efficiency of outdoor electric power overhaul construction is not facilitated.
In the scheme, the hoop is further installed on the ground anchor rod, the brace rod is connected to the hoop in a hinged mode, when the ground anchor rod fixing device is used, firstly, the fastening bolt is rotated to enable the fastening bolt not to be mutually extruded with the side face of the ground anchor rod, after the ground anchor rod is anchored into the ground to a certain depth, the hoop is lifted to a certain height away from the ground along the ground anchor rod, then the fastening bolt is rotated to enable a certain positive pressure to be generated between the fastening bolt and the side face of the ground anchor rod, and the hoop is fixed to the specific position of the ground anchor rod through the friction force generated by the positive pressure. Then, adjust each vaulting pole that is located hoop periphery: the length of the struts can be adjusted either by simply rotating the struts or simultaneously so that the lower ends of the struts can be supported on a hard ground, such as directly on rock.
When the ground anchor rod is laterally pulled as a ground anchor, the stay rod in the corresponding direction is pressed when the ground anchor rod is inclined, so that the ground anchor rod is prevented from further inclining by the acting force between the corresponding stay rod and the ground surface, and particularly when exposed rocks are arranged around the ground anchor rod or an operator pads a base plate or a stone block at the lower end of the stay rod, the stay rod has ideal anti-inclination constraint performance on the inclination of the ground anchor rod. The connection mode of the hoop and the ground anchor rod is mutually restricted through the fastening bolt, so that the axial line position of the anchor rod at the location of the hoop can be well adapted to the specific anchoring depth of the anchor rod and the concave-convex situation of the surrounding ground surface; by adopting the length-adjustable stay bar scheme and the stay bar can rotate relative to the axis of the hoop, the device can be well adapted to the position of the existing stone block, the position of the added stone block or the position of the added cushion block; the vaulting pole scheme of adjustable length and vaulting pole are rotatable for the axis of hoop more than adopting, still make things convenient for carrying of this scheme and the narrow condition in space more than the adaptation anchor position ground.
The scheme not only can realize the temporary protection of the ground connection on the spot of corresponding cable or equipment through the wiring portion more than promptly, simultaneously when needs earth anchor pole provide the side pulling force, through vaulting pole, hoop and fastening bolt, can make the earth anchor pole still have the electric conductivity performance of ideal with the ground under the circumstances that can provide the side pulling force, adopt this scheme, can effectively improve maintainer's operating efficiency.
Preferably, each brace rod is of a three-section structure: the upper end of the upper section is hinged with the hoop, and the lower end of the upper end is provided with a pore passage with an opening end positioned at the lower end and a length direction along the length direction of the upper section; the upper end of the middle section is inserted into the pore channel, the depth of the middle section inserted into the pore channel is adjustable, the locking bolt is in threaded connection with the upper section and is used for realizing the relative fixation of the middle section and the upper section, and the specific tightening mode of the locking bolt is equal to that of a fastening bolt for realizing the fixation of a hoop on a ground anchor rod; the lower extreme of middle section is provided with the internal thread hole of axis direction along middle section length direction, and the upper end of hypomere and the internal thread hole threaded connection on the middle section, and the lower extreme of hypomere is most advanced, and the middle part or the lower part of hypomere set up to the rectangle to make things convenient for operating personnel to apply the torque on the hypomere. This scheme of adoption, the upper segment makes things convenient for the quick adjustment of vaulting pole total length with middle section plug connection form, and the middle section is convenient for the fine setting of vaulting pole length with hypomere threaded connection's mode to after making the vaulting pole find suitable lower extreme strong point, through rotating the hypomere, make the vaulting pole be in pretension state in order to optimize the stability of supporting to the earth anchor pole.
In order to improve the reliability of the anti-toppling constraint of the stay bar, the hinged connection is preferably connected by a hinged shaft. For the articulated shaft, it is preferable to set: each articulated shaft is fixed in on the side of hoop, and the axis direction of each articulated shaft is located the tangential direction of the hoop position at place, and the vaulting pole is when rotating around the articulated shaft promptly, and the direction of motion of vaulting pole lower extreme is located the radial direction of hoop.
The further technical scheme is as follows:
the screw bolt and the screw cap are made of carbon steel, and the pressing cap is annular;
the pressing cap is sleeved on the stud, and the pressing cap is positioned between the connector lug and the nut;
still be provided with the bead on the side of double-screw bolt, press still be provided with on the cap be used for with bead complex cell body when pressing the cap cover to locate on the double-screw bolt, the bead embedding in the cell body, just the bead is used for through self receiving the shear, hinders to press the cap to rotate around the double-screw bolt.
Conventionally, a temporarily installed power protection device generally employs a ground anchor and a lead wire as an electrical connection wire between the ground anchor and a device or apparatus to be grounded corresponding to a line to be repaired. In consideration of convenience of the ground anchor rod and the ground, the ground anchor rod and the lead wire are generally arranged in a detachable connection manner: before the ground anchor rod is anchored into the ground, the lead wire is separated from the ground anchor rod so as to facilitate the anchoring of the ground anchor rod and avoid the damage to the lead wire in the anchoring process of the ground anchor rod; the separation of the lead wire and the ground anchor rod is completed before the ground anchor rod is pulled out, so that the ground anchor rod is conveniently pulled out, and the lead wire is prevented from being damaged in the pulling-out process of the ground anchor rod.
However, in the prior art, a connection method between the wiring board and the lead wire is generally adopted, in which a wire holder is disposed on the wiring board, the wire holder includes a rectangular tube-shaped wire inserting cylinder, the wire inserting cylinder is fixedly connected with the wiring board, one or more wire pressing screws are connected to the wire inserting cylinder, and after the terminal of the lead wire is inserted into the wire inserting cylinder, the lead wire is fixedly connected with the wire holder by applying pressure to the lead wire through the wire pressing screws. In the above connection manner, since the diameter of the wire pressing screw should not be set too large, the area of positive pressure between the lead wire and the wire inserting cylinder and between the lead wire and the wire pressing screw is limited by the diameter of the wire pressing screw, so that the connection reliability of the lead wire and the wire holder is poor, and the resistance value of the connection position of the lead wire on the protection device is large, which is not only unfavorable for the safety of the use of the protection device, but also unfavorable for the grounding performance of the protection device.
In this scheme, the connecting portion that is used for being connected with the lead wire electricity on the wiring board is promptly for the wire portion on the wiring board, if through the tip at the lead wire, the wiring end coiling a lantern ring that encircles the double-screw bolt promptly, directly with the tip bifurcation of lead wire and make the double-screw bolt be located the fork mouth of lead wire, directly insert the tip of lead wire in the clearance of pressing cap and wiring board, the cap is pressed in the position on the double-screw bolt axis in the rethread nut adjustment, can realize the electricity of lead wire and wiring board through pressing cap and wiring board and be connected.
The terminal is arranged to clamp the terminal of the lead wire between the nut and the terminal block in the process of the nut approaching the terminal block by rotating the nut. Simultaneously, set up to still including pressing the cap, press the cap cover to establish on the double-screw bolt, press the cap to be located between connector lug and the nut, set up the material that sets up to pressing the cap simultaneously for copper or aluminium, the material of double-screw bolt, nut is the carbon steel, like this, presses the in-process of cap at the nut extrusion, can make to press the cap to produce plastic deformation in order to increase and press cap and lead wire, press cap and double-screw bolt, press the area of contact between cap and the nut in order to improve the electric conductive property between lead wire and the wiring board.
In this scheme, set up as the side of double-screw bolt has the bead, and when pressing cap and double-screw bolt cooperation, the bead embedding is pressed in the cell body on the cap, like this, press the cap in-process through the nut extrusion, when the side of bead and the side of cell body act on mutually, receive the shear force through the bead, the hindrance is pressed the cap and is rotated along with the nut, thereby reach at the in-process of rotating the nut, avoid pressing the cap to rotate along with the nut and influence the electric connection performance between pressing cap and the lead wire or destroy the lead wire as far as possible, only allow to press the cap to take place to warp and can not make and press the cap to rotate relatively for the double-screw bolt in the deformation process that.
As a person skilled in the art, since the lead wire has a certain thickness after being flattened, it is preferable that the stud has a protruding rib at a part thereof, and the protruding rib is preferably a strip-shaped rib whose length direction is along the axial direction of the stud; meanwhile, the pressing cap needs to be sleeved on the stud, and the convex edge is equivalent to a strip key, so that the groove body is actually a key groove formed in the inner side of the pressing cap.
A plurality of strip-shaped axial grooves are further formed in the outer side of the pressing cap, one end of each axial groove is connected with one end of the pressing cap, and the other end of each axial groove is connected with the other end of the pressing cap;
the plurality of axial grooves are annularly arranged on the outer side surface of the pressing cap;
the pressing cap is sleeved with the lantern ring;
one end of the ring sleeve, which is close to the screw cap, is also provided with an annular blocking edge, and the blocking edge forms an annular step surface on the outer side surface of the ring sleeve;
the terminal surface of nut contacts with the terminal surface of pressing the cap, and the terminal surface of lantern ring is located the outside of nut terminal surface.
Because the cap is pressed to take place to warp the back under the effect of nut and press the cap can bond on the double-screw bolt or form the close-fitting relation with the double-screw bolt, above bonding and close-fitting relation influence the removal of connector lug and double-screw bolt relation of being connected, so set up to still including setting up the many axial grooves on pressing the cap outside, when above axial groove is used for connector lug and double-screw bolt separation, through tools such as pincers worker flat shovel, pincers worker crow bar, the destruction is pressed the cap and is made it become non-closed ring and convenient will be pressed the cap and remove on by the double-screw bolt. In this scheme, set up to the axial groove be a plurality ofly, and the annular distribution on pressing the cap, can make operating personnel can destroy by the angle of convenient operation and press the cap or convenient will press the cap to destroy and be the polylith.
As mentioned above, this scheme need press the cap so that it produces plastic deformation and optimizes the electrical connection performance of lead wire and ground stock when using through the nut extrusion, simultaneously including the axial slot on the pressure cap, press the whole ring structure of cap to suffer destruction and influence the electrical connection performance of lead wire and double-screw bolt for avoiding the nut to press in-process pressure cap in the extrusion, in this scheme, set up to still including the lantern ring, above lantern ring is the hoop of cover locating on the pressure cap outside for press the cap radial deformation to provide the restraint, press the intact of the whole ring structure of cap in-process pressure cap in order to keep the nut extrusion.
As described above, since the connection relationship between the lead wire and the screw is removed at last, the pressing cap needs to be damaged, and the tight fit relationship is formed between the collar and the pressing cap after the pressing cap is deformed, in this scheme, an annular stopper edge is further provided at one end of the collar close to the screw cap, and the stopper edge forms an annular step surface on the outer side surface of the collar. Thus, before the pressing cap is broken, the step surface is knocked by a knocking tool to complete the separation of the sleeve ring and the pressing cap, for example, the knocking force direction of knocking is along the axial direction of the stud and towards the free end of the stud, and the pressing cap is broken after the sleeve ring is separated from the pressing cap. I.e. the above collar solution comprising the ledge facilitates the separation of the press cap from the collar.
The terminal surface of pressing the cap to be close to the one end of wiring board is last to be provided with a plurality of recesses, and each recess is: one end of the groove is connected with the central hole on the pressing cap, and the other end of the groove is connected with the outer side of the pressing cap;
the groove is annularly arranged on the end face of the pressing cap;
the lead wire is a stranded wire. In the scheme, the stranded wire is a stranded wire, the lead wire is a stranded wire, the flexibility of the stranded wire is utilized, the anchoring position of the anchor rod can be determined according to the actual environment, and meanwhile, the shape of a section clamped by the pressing cap and the grounding plate on the lead wire is easy to deform when being pressed, so that the aim of improving the contact area of the lead wire and the pressing cap as well as the contact area of the lead wire and the wiring board can be fulfilled; set up to pressing the cap to be close to one of wiring board to serve and still have the recess, above recess not only can expand and press the cap to correspond the area of contact of end portion and lead wire, through the position of injecing each recess both ends, a plurality of recesses are pressing the state of arranging of cap tip simultaneously, after lead wire pressurized produces the local embedding recess that warp, pressing the cap not removing and pressing under the tight circumstances of clamp to lead wire, can avoid lead wire to be connected failure with the wiring board under the circumstances of pulling.
In conclusion, the pressing cap comprises the groove, so that the upper lead wire has the characteristic of reliable connection; because the lead wire can be directly with the wiring board in this scheme, press cap and double-screw bolt direct contact, simultaneously, owing to press including the recess on the cap, lead wire hookup location is owing to change in obtaining bigger area of contact, and the structure can make the electric conductive property of this scheme can more easily obtain guaranteeing more above the adoption.
The lead wire is preferably formed by a plurality of strands of copper stranded wires, so that the electric connection performance between the lead wire and the wiring board, the stud and the pressing cap can be optimized by utilizing the characteristic of changeability of the copper wires.
For avoiding pressing the cap at the in-process of extrusion lead wire, because the local atress of lead wire is too big and cause the single wire of constituteing the lead wire to be cut off and influence the electric connection quality of lead wire and earth anchor, set up to: the groove surface of the groove and the end surface of the pressing cap are in smooth transition.
As an implementation scheme easy to process, the method comprises the following steps: the grooves are strip-shaped grooves, and the length direction of each groove is located in the radial direction of the pressing cap.
For make press the cap to be close to the one end of lead wire and lead wire can have bigger area of contact, make simultaneously press the cap to be close to the one end of wiring board under the effect of nut, in the radial direction of pressing the cap tip, press all to have comparatively even pressure between cap tip each point and the lead wire in order to obtain the lead wire and press the bigger electrically conductive area of cap, set up to: the pressing cap is in a cone frustum shape with a central hole in the middle, and one end with a larger end face area faces the wiring board. Preferably, the lantern ring is also in a shape of a truncated cone, meanwhile, the length of the lantern ring is equal to that of the pressing cap, and the size of the lantern ring is as follows: after the pressing cap is matched with the lantern ring, the inner side surface of the lantern ring is completely attached to the outer side surface of the pressing cap, so that deformation of each point of the pressing cap can be restrained as much as possible through the lantern ring. Preferably, the bottom of the axial groove is provided with an apex, namely the cross section of the axial groove is triangular, so that the stress concentration at the apex can be utilized in the deformation process of the pressing cap, the pressing cap is cracked, and the subsequent pressing cap is conveniently broken and detached from the stud.
In order to make can be filled by the carbon powder and do benefit to the electric connection performance between lead wire and the earth anchor pole like in the clearance between lead wire and pressure cap, wiring board, the double-screw bolt, wire portion still includes the toner cartridge, toner cartridge and wiring board fixed connection, double-screw bolt, pressure cap all are located the toner cartridge. This scheme is when using, be used for splendid attire carbon dust in the cartridge.
The plurality of wire parts are provided, each toner cartridge is in a container shape with an opening facing, and a wiring groove is formed in the cartridge wall of each toner cartridge;
the wiring grooves are used as communication channels inside and outside the carbon powder box, the lead wires on the wire portions are led into the carbon powder box through the corresponding wiring grooves, and the notch ends of the wiring grooves are located at the upper end of the carbon powder box;
the connection slot on each toner cartridge is arranged at the connection position of each toner cartridge and the wiring board. In the scheme, a plurality of lead parts are arranged, so that a plurality of lead wire connection points are conveniently obtained on the wiring board to realize that the ground anchor rod is connected with the line to be repaired, the equipment or device subjected to the electrical test, the lightning conductor and the equipment subjected to the electric leakage protection through a plurality of lead wires; the ground anchor rod is connected with a plurality of or a plurality of devices or devices which are overhauled the circuit and are subjected to electrical test, the lightning conductor and the device which is subjected to electric leakage protection through a single or a plurality of lead wires, meanwhile, the wiring ends which are connected with the ground anchor rod are not influenced, and the high-quality connection of the lead wires and the ground anchor rod is convenient to realize.
In order to enable the ground anchor rod to more easily penetrate through the hard ground and be embedded into the ground to a certain depth below the ground surface, the ground anchor rod is arranged as follows: the side surface of the lower side of the ground anchor rod is also provided with a spiral rib;
a rotating handle is also fixed on the upper side of the ground anchor rod;
the lower end of the ground anchor rod is a pointed end. In the scheme, the torque is applied to the ground anchor rod through the rotating handle, so that the ground anchor rod is guided by the spiral ribs and is easily embedded into the ground in the rotating process; the above tip can reduce the resistance during the embedding of the earth anchor.
As a connection scheme which is easy to realize and can ensure the electrical connection performance, the connection scheme is as follows: the wiring board is connected with the ground anchor rod through welding connection.
Preferably, the pressing cap is made of copper, namely, the pressing cap is a copper ring.
The invention has the following beneficial effects:
in the scheme, the hoop is further installed on the ground anchor rod, the brace rod is connected to the hoop in a hinged mode, when the ground anchor rod fixing device is used, firstly, the fastening bolt is rotated to enable the fastening bolt not to be mutually extruded with the side face of the ground anchor rod, after the ground anchor rod is anchored into the ground to a certain depth, the hoop is lifted to a certain height away from the ground along the ground anchor rod, then the fastening bolt is rotated to enable a certain positive pressure to be generated between the fastening bolt and the side face of the ground anchor rod, and the hoop is fixed to the specific position of the ground anchor rod through the friction force generated by the positive pressure. Then, adjust each vaulting pole that is located hoop periphery: the length of the struts can be adjusted either by simply rotating the struts or simultaneously so that the lower ends of the struts can be supported on a hard ground, such as directly on rock.
When the ground anchor rod is laterally pulled as a ground anchor, the stay rod in the corresponding direction is pressed when the ground anchor rod is inclined, so that the ground anchor rod is prevented from further inclining by the acting force between the corresponding stay rod and the ground surface, and particularly when exposed rocks are arranged around the ground anchor rod or an operator pads a base plate or a stone block at the lower end of the stay rod, the stay rod has ideal anti-inclination constraint performance on the inclination of the ground anchor rod. The connection mode of the hoop and the ground anchor rod is mutually restricted through the fastening bolt, so that the axial line position of the anchor rod at the location of the hoop can be well adapted to the specific anchoring depth of the anchor rod and the concave-convex situation of the surrounding ground surface; by adopting the length-adjustable stay bar scheme and the stay bar can rotate relative to the axis of the hoop, the device can be well adapted to the position of the existing stone block, the position of the added stone block or the position of the added cushion block; the vaulting pole scheme of adjustable length and vaulting pole are rotatable for the axis of hoop more than adopting, still make things convenient for carrying of this scheme and the narrow condition in space more than the adaptation anchor position ground.
The scheme not only can realize the temporary protection of the ground connection on the spot of corresponding cable or equipment through the wiring portion more than promptly, simultaneously when needs earth anchor pole provide the side pulling force, through vaulting pole, hoop and fastening bolt, can make the earth anchor pole still have the electric conductivity performance of ideal with the ground under the circumstances that can provide the side pulling force, adopt this scheme, can effectively improve maintainer's operating efficiency.
Drawings
Fig. 1 is a partial schematic view showing the structure of a pressing cap and a collar and the matching relationship between the pressing cap and the collar in an embodiment of an outdoor power construction apparatus according to the present invention, and the schematic view is an exploded view;
FIG. 2 is a partial schematic view of an embodiment of an outdoor power construction apparatus according to the present invention, the partial schematic view reflecting the structure of a wire portion and the connection relationship of the wire portion to a terminal block;
FIG. 3 is a schematic structural view of an embodiment of an outdoor power construction apparatus according to the present invention;
FIG. 4 is a side view of a collar in an exemplary embodiment of an outdoor power construction apparatus of the present invention;
fig. 5 is a partial schematic view showing the structure and connection relationship of a hoop, a fastening bolt and a brace in an embodiment of the outdoor power construction device of the present invention.
The reference numbers in the figures are in order: 1. the carbon powder cartridge comprises a pressing cap, 11, a groove, 12, an axial groove, 13, a groove body, 2, a lead wire, 3, a wiring board, 4, a carbon powder cartridge, 41, a wiring groove, 5, a screw cap, 6, a lantern ring, 61, a stop edge, 7, a stud, 71, a convex edge, 8, a ground anchor rod, 81, a hoop, 82, a fastening bolt, 83, a support rod, 9, a rotating handle, 10 and a spiral ridge.
Detailed Description
The present invention will be described in further detail with reference to examples, but the structure of the present invention is not limited to the following examples.
Example 1:
as shown in fig. 1 to 4, an outdoor electric power construction appliance includes a ground anchor 8 and a wire connection portion installed on the ground anchor 8, the wiring part comprises a wiring board 3 and a wire part, the wire part comprises a stud 7, a nut 5 and a lead wire 2, the wiring board 3 is electrically connected with a ground anchor rod 8, one end of a stud 7 is welded on the wiring board 3, a nut 5 is connected on the stud 7 in a threaded manner, the wiring head of the lead wire 2 is clamped between the wiring board 3 and the nut 5, and the lead wire further comprises a hoop 81, a support rod 83 and a fastening bolt 82, wherein the hoop is in a sleeve shape, the plurality of support rods 83 are provided, the length of each stay bar 83 is adjustable, the upper end of each stay bar 83 is hinged with the hoop 81, the stay bars 83 are annularly distributed around the hoop 81, when each stay 83 rotates around the hinge point of the stay 83 and the hoop 81, the stay 83 is unfolded or folded relative to the axis of the hoop 81;
the side wall of the hoop is also provided with a plurality of internal thread holes, the internal thread holes all penetrate through the side wall of the hoop, and each internal thread hole is internally and threadedly connected with one fastening bolt 82.
Among the prior art, if overhaul to outdoor power cable, often meet and need set up earthing device in order to carry out ground protection, need set up the side and draw the earth anchor to corresponding conductor portion for provide the cable and prevent rocking restraint etc.. However, for the grounding device, although the ground anchor rod 8 included therein needs to be anchored into the ground, the ground anchor rod 8 should not be subjected to side pulling in consideration of the electrical conductivity between the ground anchor rod 8 and the ground, so as to avoid the ground anchor rod 8 from having a large arc skew relative to the original anchoring state after being anchored. Therefore, in the prior art, the side pull ground anchor and the grounding ground anchor are generally arranged separately, but aiming at the mountainous area where the earth surface is mostly rock, two suitable anchor sites are difficult to find, and the efficiency of outdoor electric power overhaul construction is not facilitated.
In the scheme, the hoop 81 is further installed on the ground anchor rod 8, the brace 83 is hinged to the hoop 81, when the scheme is used, firstly, the fastening bolt 82 is rotated to enable the fastening bolt 82 not to be mutually extruded with the side face of the ground anchor rod 8, after the ground anchor rod 8 is anchored into the ground to a certain depth, the hoop is lifted to a certain height away from the ground along the ground anchor rod 8, then the fastening bolt 82 is rotated to enable a certain positive pressure to be generated between the fastening bolt 82 and the side face of the ground anchor rod 8, and the hoop 81 is fixed at a specific position of the ground anchor rod 8 through the friction force generated by the positive pressure. Then, the struts 83 around the hoop 81 are adjusted: turning only the struts 83 or simultaneously adjusting the length of the struts 83 enables the lower end of each strut 83 to be supported on a hard ground surface, such as directly on rock.
When the ground anchor rod 8 is laterally pulled as a ground anchor, the stay bar 83 in the corresponding direction is pressed when the ground anchor rod 8 is inclined, so that the acting force between the corresponding stay bar 83 and the ground surface prevents the ground anchor rod 8 from further inclining, and particularly when exposed rocks are arranged around the ground anchor rod 8 or an operator pads a cushion plate or a rock block at the lower end of the stay bar 83, the stay bar 83 has ideal anti-inclination constraint performance on the inclination of the ground anchor rod 8. The connection mode of the hoop 81 and the ground anchor rod 8 and the mutual constraint through the fastening bolt 82 can enable the axial line position of the anchor rod 8 at the hoop location to be well suitable for the specific anchoring depth of the anchor rod 8 and the concave-convex situation of the surrounding ground surface; by adopting the scheme of the stay bar 83 with adjustable length and the stay bar 83 capable of rotating relative to the axis of the hoop 81, the position of the existing stone block, the position of the added stone block or the position of the added cushion block can be well adapted; length adjustable vaulting pole 83 scheme and vaulting pole 83 are rotatable for the axis of hoop 81 more than adopting, still make things convenient for carrying of this scheme and the narrow condition in space more than the adaptation anchor position ground.
The scheme can realize local grounding temporary protection of corresponding cables or equipment through the wiring part, and meanwhile when the ground anchor rod 8 is required to provide side tension, the ground anchor rod 8 can still have ideal electric conduction performance with the ground under the condition that the side tension can be provided through the support rod 83, the hoop 81 and the fastening bolt 82.
In this embodiment, each brace 83 is a three-segment structure: the device comprises an upper section, a middle section and a lower section, wherein the upper end of the upper section is hinged with a hoop 81, and the lower end of the upper end is provided with a pore passage with an opening end positioned at the lower end and a length direction along the length direction of the upper section; the upper end of the middle section is inserted into the pore channel, the depth of the middle section inserted into the pore channel is adjustable, the locking bolt is in threaded connection with the upper section and is used for realizing the relative fixation of the middle section and the upper section, and the specific tightening mode of the locking bolt is equal to that of the fastening bolt 82 for realizing the fixation of the hoop 81 on the ground anchor rod 8; the lower extreme of middle section is provided with the internal thread hole of axis direction along middle section length direction, and the upper end of hypomere and the internal thread hole threaded connection on the middle section, and the lower extreme of hypomere is most advanced, and the middle part or the lower part of hypomere set up to the rectangle to make things convenient for operating personnel to apply the torque on the hypomere. This scheme of adoption, the upper segment makes things convenient for the quick adjustment of vaulting pole 83 total length with middle section plug connection form, and the middle section is convenient for the fine setting of vaulting pole 83 length with hypomere threaded connection's mode to make vaulting pole 83 find suitable lower extreme strong point after, through rotating the hypomere, make vaulting pole 83 be in the stability of pretension state in order to optimize the support to earth anchor 8.
To improve the reliability of the brace 83 against the tilt constraint, the above hinge connection is preferably connected by a hinge shaft. For the articulated shaft, this embodiment is provided with: each hinge shaft is fixed on the side surface of the hoop 81, and the axial direction of each hinge shaft is located in the tangential direction of the position of the hoop 81, that is, the moving direction of the lower end of the stay 83 is located in the radial direction of the hoop 81 when the stay 83 rotates around the hinge shaft.
Example 2:
as shown in fig. 1 to 4, the present embodiment is further defined on the basis of embodiment 1: the bolt is characterized by further comprising a pressing cap 1, the pressing cap 1 is made of copper or aluminum, the stud 7 and the nut 5 are made of carbon steel, and the pressing cap 1 is annular;
the pressing cap 1 is sleeved on the stud 7, and the pressing cap 1 is positioned between the connector lug and the screw cap 5;
still be provided with bead 71 on the side of double-screw bolt 7, press still be provided with on the cap 1 be used for with bead 71 complex cell body 13, when pressing cap 1 cover to locate on double-screw bolt 7, bead 71 embedding in the cell body 13, just bead 71 is used for hindering through self receiving to cut to press cap 1 to rotate around double-screw bolt 7.
In the related art, a temporary power protection device generally employs a ground anchor 8 as a ground anchor, and a lead wire 2 is used as an electrical connection wire between the ground anchor 8 and a device or apparatus to be grounded corresponding to a line to be inspected. In consideration of convenience of the ground anchor 8 in anchoring, it is generally set that the connection relationship between the ground anchor 8 and the lead wire 2 is a detachable connection relationship: before the ground anchor rod 8 is anchored into the ground, the lead wire 2 is separated from the ground anchor rod 8 so as to facilitate the anchoring of the ground anchor rod 8 and avoid the damage to the lead wire 2 in the anchoring process of the ground anchor rod 8; before the ground anchor rod 8 is pulled out, the lead wire 2 is separated from the ground anchor rod 8, so that the ground anchor rod 8 can be conveniently pulled out, and the lead wire 2 is prevented from being damaged in the process of pulling out the ground anchor rod 8.
However, in the prior art, a connection method of the wiring board 3 and the lead wire 2 is generally adopted, in which a connection base is disposed on the wiring board 3, the connection base includes a rectangular tube-shaped wire inserting cylinder, the wire inserting cylinder is fixedly connected with the wiring board 3, one or more wire pressing screws are connected to the wire inserting cylinder, and after the terminal of the lead wire 2 is inserted into the wire inserting cylinder, the lead wire 2 is fixedly connected with the connection base by applying pressure to the lead wire 2 through the wire pressing screws. Among the above connected mode, because the diameter of line ball screw should not set up too big, so in fact the diameter of line ball screw has injectd the area that has positive pressure between lead wire 2 and the wire barrel, the line ball screw for the reliability of being connected of lead wire 2 and connection terminal is relatively poor, and the hookup location resistance value of lead wire 2 on protection device is great, not only is unfavorable for the security that protection device used, is unfavorable for protection device's grounding performance simultaneously.
In the scheme, the wire portion on the wiring board 3 is the connecting portion used for being electrically connected with the lead wire 2 on the wiring board 3, if through the end portion of the lead wire 2, namely the wiring end winds a lantern ring 6 surrounding the stud 7, the end portion of the lead wire 2 is directly forked and the stud 7 is positioned in the fork of the lead wire 2, the end portion of the lead wire 2 is directly inserted into a gap between the pressing cap 1 and the wiring board 3, the position of the pressing cap 1 on the axis of the stud 7 is adjusted through the screw cap 5, and the lead wire 2 can be electrically connected with the wiring board 3 through the pressing cap 1 and the wiring board 3.
Is arranged to clamp the terminal of the lead wire 2 between the nut 5 and the terminal block 3 during the approach of the nut 5 to the terminal block 3 by rotating the nut 5. Simultaneously, set up to still including pressing cap 1, press 1 covers of cap to establish on double-screw bolt 7, press cap 1 to be located between connector lug and nut 5, set up to pressing cap 1's material simultaneously for copper or aluminium, the material of double-screw bolt 7, nut 5 is the carbon steel, like this, presses the in-process of cap 1 at nut 5 extrusion, can make and press cap 1 to produce plastic deformation in order to increase and press cap 1 and lead wire 2, press cap 1 and double-screw bolt 7, press the area of contact between cap 1 and the nut 5 in order to improve the electric conductive property between lead wire 2 and the wiring board 3.
In the scheme, the convex ribs 71 are arranged on the side surfaces of the studs 7, and when the pressing cap 1 is matched with the studs 7, the convex ribs 71 are embedded into the groove bodies 13 on the pressing cap 1, so that in the process of extruding the pressing cap 1 through the screw cap 5, when the side surfaces of the convex ribs 71 act with the side surfaces of the groove bodies 13, the convex ribs 71 are subjected to shearing force to prevent the pressing cap 1 from rotating along with the screw cap 5, and therefore, in the process of rotating the screw cap 5, the influence of the rotation of the pressing cap 1 along with the screw cap 5 on the electric connection performance between the pressing cap 1 and the lead wires 2 or the damage of the lead wires 2 are avoided as far as possible, namely, the pressing cap 1 is only allowed to deform in the compression deformation process, and the pressing cap 1 cannot.
As a person skilled in the art, since the lead wire 2 has a certain thickness even after being flattened, it is preferable that the stud 7 has a rib 71 at a part thereof, and the rib 71 is preferably a strip-shaped rib whose length direction is along the axial direction of the stud 7; meanwhile, since the pressing cap 1 needs to be sleeved on the stud 7, the protruding edge 71 is equivalent to a bar key, so the above groove body 13 is actually a key groove formed on the inner side of the pressing cap 1.
A plurality of strip-shaped axial grooves 12 are further formed in the outer side of the pressing cap 1, one end of each axial groove 12 is connected with one end of the pressing cap 1, and the other end of each axial groove 12 is connected with the other end of the pressing cap 1;
a plurality of axial grooves 12 are annularly arranged on the outer side surface of the pressure cap 1;
the pressing cap further comprises a lantern ring 6, and the lantern ring 6 is sleeved on the pressing cap 1;
one end of the ring sleeve close to the screw cap 5 is also provided with an annular blocking edge 61, and the blocking edge 61 forms an annular step surface on the outer side surface of the ring sleeve 6;
the end face of the nut 5 is in contact with the end face of the pressing cap 1, and the end face of the lantern ring 6 is located on the outer side of the end face of the nut 5.
Because the cap 1 of pressing takes place to warp under the effect of nut 5 the back and presses cap 1 can bond on double-screw bolt 7 or form the close-fitting relation with double-screw bolt 7, it influences the removal of connector lug and double-screw bolt 7 relation of being connected with the close-fitting relation to bond above, so set up to still including setting up many axial grooves 12 on the cap 1 outside, when above axial groove 12 is used for connector lug and double-screw bolt 7 to separate, through tools such as pincers worker flat shovel, pincers worker crow bar, destroy and press cap 1 and make it become non-closed ring and convenient will press cap 1 to remove on the double-screw bolt 7. In this scheme, set up to axial groove 12 for a plurality ofly, and the annular distribution is on pressing cap 1, can make operating personnel can destroy by the angle of convenient operation and press cap 1 or convenient will press cap 1 to destroy and be the polylith.
As described above, in the present scheme, when in use, the nut 5 is required to extrude the pressing cap 1 so as to enable the pressing cap to generate plastic deformation to optimize the electrical connection performance of the lead wire 2 and the ground anchor rod 8, and meanwhile, the pressing cap 1 comprises the axial groove 12, so as to prevent the whole circular ring structure of the pressing cap 1 from being damaged in the process of extruding the pressing cap 1 by the nut 5 to influence the electrical connection performance of the lead wire 2 and the stud 7, in the present scheme, the pressing cap further comprises the lantern ring 6, the lantern ring 6 is a hoop sleeved on the outer side of the pressing cap 1, and is used for providing constraint for radial deformation of the pressing cap 1 so as to maintain integrity of the whole circular ring structure of the pressing cap 1 in the process of extruding the pressing cap 1.
As mentioned above, since the connection relationship between the lead wire 2 and the stud 7 needs to be removed finally to break the press cap 1, and the tight fit relationship is formed between the collar 6 and the press cap 1 after the press cap 1 is deformed, in this embodiment, an annular stop edge 61 is further provided at one end of the collar close to the nut 5, and the stop edge 61 forms an annular step surface on the outer side surface of the collar 6. In this way, before the pressing cap 1 is broken, the stepped surface is firstly knocked by a knocking tool to complete the separation of the collar 6 and the pressing cap 1, and as the knocking force direction of the knocking is along the axial direction of the stud 7 and towards the free end of the stud 7, the pressing cap 1 is broken after the collar 6 is separated from the pressing cap 1. I.e. the above collar 6 solution comprising the ledge 61 facilitates the separation of the press cap 1 from the collar 6.
the groove 11 is annularly arranged on the end surface of the pressure cap 1;
the lead wire 2 is a stranded wire. In the scheme, the stranded wire is a multi-strand wire, the lead wire 2 is a stranded wire, the ground anchoring position of the ground anchor rod 8 can be determined according to the actual environment by using the flexibility of the stranded wire, and meanwhile, the shape of a section clamped by the pressing cap 1 and the ground plate on the lead wire 2 is easy to deform when being pressed, so that the aim of improving the contact area of the lead wire 2 and the pressing cap 1 as well as the contact area of the lead wire 2 and the wiring board 3 can be fulfilled; set up to pressing cap 1 to be close to one of wiring board 3 and still have recess 11, above recess 11 not only can expand the area of contact who presses cap 1 to correspond the end tip and lead wire 2, through the position of injecing each recess 11 both ends, a plurality of recesses 11 are pressing the state of arranging of cap 1 tip simultaneously, lead wire 2 pressurized and produce the local embedding recess 11 of deformation after, press cap 1 not removing and press under the tight condition of 2 clamps of lead wire, can avoid lead wire 2 to be connected failure with wiring board 3 under the condition of dragging.
In conclusion, the pressing cap 1 comprises the groove 11, so that the upper lead wire 2 has the characteristic of reliable connection; because lead wire 2 can be direct with wiring board 3 in this scheme, press cap 1 and double-screw bolt 7 direct contact, simultaneously, owing to press including recess 11 on the cap 1, lead wire 2 hookup location can be owing to change in obtaining bigger area of contact, and the structure can make the electric conductive property of this scheme can more easily obtain guaranteeing more above the adoption.
The lead wire 2 is preferably formed by a plurality of strands of copper stranded wires, so that the electrical connection performance between the lead wire 2 and the wiring board 3, the stud 7 and the pressing cap 1 can be optimized by utilizing the characteristic of copper wire changeability.
In order to avoid pressing cap 1 in the in-process of extrusion lead wire 2, because lead wire 2 local atress too big and cause that the single wire that constitutes lead wire 2 is cut off and influence the electric connection quality of lead wire 2 and earth anchor 8, set up to: the groove surface of the groove 11 and the end surface of the pressing cap 1 are in smooth transition.
As an implementation scheme easy to process, the method comprises the following steps: the grooves 11 are strip-shaped grooves, and the length direction of each groove 11 is located in the radial direction of the pressing cap 1.
For make press cap 1 to be close to the one end of lead wire 2 and lead wire 2 can have bigger area of contact, make simultaneously press cap 1 to be close to the one end of wiring board 3 under the effect of nut 5, at the radial direction of pressing cap 1 tip, all have comparatively even pressure between 1 tip each point of press cap and the lead wire 2 in order to obtain lead wire 2 and the more electrically conductive area of press cap 1, set up to: the pressing cap 1 is in a cone frustum shape with a central hole in the middle, and one end, with a larger end surface area, of the pressing cap 1 faces the wiring board 3. Preferably, the lantern ring 6 is also in a shape of a truncated cone, meanwhile, the length of the lantern ring 6 is equal to that of the pressing cap 1, and the size of the lantern ring 6 is as follows: after the pressing cap 1 is matched with the lantern ring 6, the inner side surface of the lantern ring 6 is completely attached to the outer side surface of the pressing cap 1, so that deformation of each point of the pressing cap 1 can be restrained as much as possible through the lantern ring 6. Preferably, the bottom of the axial groove 12 is provided with a tip, that is, the cross section of the axial groove 12 is triangular, so that during the deformation of the press cap 1, stress concentration at the tip can be utilized, so that the press cap 1 cracks to facilitate the subsequent removal of the press cap 1 from the stud 7.
In order to ensure that the gaps between the lead wire 2 and the pressing cap 1, the wiring board 3 and the stud 7 can be filled with carbon powder to be beneficial to the electric connection performance between the lead wire 2 and the ground anchor rod 8, the wire part also comprises a carbon powder box 4, the carbon powder box 4 is fixedly connected with the wiring board 3, and the stud 7 and the pressing cap 1 are both positioned in the carbon powder box 4. When the carbon powder box is used, the carbon powder box 4 is used for containing carbon powder.
The number of the wire parts is multiple, each toner cartridge 4 is in a container shape with an opening facing, and a wiring groove 41 is formed in the cartridge wall of each toner cartridge 4;
the wiring grooves 41 are used as communication channels of the inner side and the outer side of the toner cartridge 4, the lead wires 2 on each wire portion are led into the toner cartridge 4 through the corresponding wiring grooves 41, and the notch end of each wiring groove 41 is positioned at the upper end of the toner cartridge 4;
the opening position of the wiring groove 41 on each toner cartridge 4 is located at the connecting position of each toner cartridge 4 and the wiring board 3. In the scheme, a plurality of lead parts are arranged, so that a plurality of lead wire 2 connection points are conveniently obtained on the wiring board 3 to connect the ground anchor rod 8 with the line to be repaired, the equipment or device to be subjected to the electrical test, the lightning conductor and the equipment to be subjected to the electric leakage protection through the plurality of lead wires 2; the ground anchor rod 8 is connected with a plurality of or a plurality of devices or devices which are overhauled circuits and are subjected to electrical tests, lightning conductors and devices which are protected by electric leakage through a single or a plurality of lead wires 2, meanwhile, wiring ends of the lead wires 2 connected with the ground anchor rod 8 are not influenced mutually, and the high-quality connection of the lead wires 2 and the ground anchor rod 8 is facilitated.
In order to make the ground anchor rod 8 more easily penetrate through the hard ground and be embedded to a certain depth below the ground surface, the arrangement is that: the side surface of the lower side of the ground anchor rod 8 is also provided with a spiral rib 10;
a rotating handle 9 is also fixed on the upper side of the ground anchor rod 8;
the lower end of the ground anchor rod 8 is a tip. In the scheme, the torque is applied to the ground anchor rod 8 through the rotating handle 9, so that the ground anchor rod 8 is guided by the spiral ribs 10 in the rotating process and is easily embedded into the ground; the above tip can reduce resistance during insertion of the anchor 8.
As a connection scheme which is easy to realize and can ensure the electrical connection performance, the connection scheme is as follows: the terminal plate 3 is connected to a ground anchor 8 by a welded connection.
Preferably, the material of the pressing cap 1 is copper, that is, the pressing cap 1 is a copper ring.
The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the specific embodiments of the present invention be limited to these descriptions. For those skilled in the art to which the invention pertains, other embodiments that do not depart from the scope of the invention are intended to be encompassed by the scope of the invention.
Claims (9)
1. An outdoor electric power construction appliance comprises a ground anchor rod (8) and a wiring portion arranged on the ground anchor rod (8), wherein the wiring portion comprises a wiring board (3) and a wire portion, the wire portion comprises a stud (7), a nut (5) and a lead wire (2), the wiring board (3) is electrically connected with the ground anchor rod (8), one end of the stud (7) is welded on the wiring board (3), the nut (5) is in threaded connection with the stud (7), the wiring head of the lead wire (2) is clamped between the wiring board (3) and the nut (5), the outdoor electric power construction appliance is characterized by further comprising a hoop (81), supporting rods (83) and fastening bolts (82), the hoop (81) is in a sleeve shape, the supporting rods (83) are multiple, the length of each supporting rod (83) is adjustable, the upper end of each supporting rod (83) is hinged with the hoop (81), and the supporting rods (83) are annularly distributed around the hoop (81), when each stay bar (83) rotates around the hinge point of the stay bar and the hoop (81), the stay bar (83) is unfolded or folded relative to the axis of the hoop (81);
the side wall of the hoop (81) is also provided with a plurality of internal thread holes, the internal thread holes all penetrate through the side wall of the hoop (81), and each internal thread hole is in threaded connection with a fastening bolt (82);
the ground anchor rod is provided with a hoop;
the bolt is characterized by further comprising a pressing cap (1), the pressing cap (1) is made of copper or aluminum, the stud (7) and the nut (5) are made of carbon steel, and the pressing cap (1) is annular;
the pressing cap (1) is sleeved on the stud (7), and the pressing cap (1) is located between the connector lug and the screw cap (5);
still be provided with bead (71) on the side of double-screw bolt (7), press still be provided with on cap (1) be used for with bead (71) complex cell body (13), when pressing cap (1) cover to locate double-screw bolt (7), bead (71) embedding in cell body (13), just bead (71) are arranged in receiving through self to cut, and the hindrance is pressed cap (1) and is rotated around double-screw bolt (7).
2. An outdoor electric power construction appliance according to claim 1, wherein a plurality of axial grooves (12) are further formed in the outer side of the pressing cap (1), each axial groove (12) is in a strip shape, one end of each axial groove (12) is connected with one end of the pressing cap (1), and the other end of each axial groove (12) is connected with the other end of the pressing cap (1);
a plurality of axial grooves (12) are annularly arranged on the outer side surface of the pressure cap (1);
the pressing cap is characterized by further comprising a lantern ring (6), wherein the lantern ring (6) is sleeved on the pressing cap (1);
one end of the ring sleeve (6) close to the screw cap (5) is also provided with an annular blocking edge (61), and the blocking edge (61) forms an annular step surface on the outer side surface of the ring sleeve (6);
the end face of the nut (5) is in contact with the end face of the pressing cap (1), and the end face of the lantern ring (6) is located on the outer side of the end face of the nut (5).
3. An outdoor power construction appliance according to claim 1, wherein the end surface of the pressing cap (1) close to one end of the wiring board (3) is provided with a plurality of grooves (11), and each groove (11) is: one end of the groove (11) is connected with a central hole on the pressure cap (1), and the other end of the groove (11) is connected with the outer side of the pressure cap (1);
the groove (11) is annularly arranged on the end surface of the pressure cap (1);
the lead wire (2) is a stranded wire.
4. An outdoor power construction appliance according to claim 3, wherein the groove surface of the groove (11) is in smooth transition with the end surface of the pressing cap (1).
5. An outdoor power construction device according to claim 3, wherein the grooves (11) are all strip-shaped grooves, and the length direction of each groove (11) is located in the radial direction of the pressing cap (1).
6. An outdoor electric power construction appliance according to claim 1, wherein the pressing cap (1) is in the shape of a truncated cone with a central hole in the middle, and the end with the larger area of the end surface of the pressing cap (1) faces the wiring board (3).
7. An outdoor power construction appliance according to claim 1, wherein the wire portion further comprises a toner cartridge (4), the toner cartridge (4) is fixedly connected with the wiring board (3), and the stud (7) and the pressing cap (1) are both located in the toner cartridge (4).
8. An outdoor power construction device according to claim 7, wherein the wire portion is a plurality of wire portions, each toner cartridge (4) is in the shape of a container with an opening facing, and a wire connecting groove (41) is formed in a cartridge wall of each toner cartridge (1);
the wiring grooves (41) are used as communication channels of the inner side and the outer side of the toner cartridge (4), the lead wires (2) on each wire portion are led into the toner cartridge (4) through the corresponding wiring grooves (41), and the notch end of each wiring groove (41) is positioned at the upper end of the toner cartridge (4);
the connection slot (41) on each toner cartridge (4) is arranged at the connection position of each toner cartridge (4) and the wiring board (3).
9. An outdoor electric power construction device according to any one of claims 1-8, characterized in that the side of the lower side of the ground anchor (8) is further provided with helical ribs (10) in a spiral shape;
a rotating handle (9) is also fixed on the upper side of the ground anchor rod (8);
the lower end of the ground anchor rod (8) is a pointed end;
the terminal plate (3) is connected with a ground anchor rod (8) through welding connection.
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| CN201811115246.8A CN109217164B (en) | 2018-09-25 | 2018-09-25 | Outdoor electric power construction appliance |
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| CN201811115246.8A CN109217164B (en) | 2018-09-25 | 2018-09-25 | Outdoor electric power construction appliance |
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| CN109217164B true CN109217164B (en) | 2020-10-09 |
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| CN201818628U (en) * | 2010-09-17 | 2011-05-04 | 刘明杰 | Rivet nut connecting plate capable of preventing spinning of circular rivet nut |
| CN202888415U (en) * | 2012-07-27 | 2013-04-17 | 长沙中联消防机械有限公司 | Grounding device |
| CN202816592U (en) * | 2012-09-14 | 2013-03-20 | 保定天威集团有限公司 | Low-voltage lead copper bar connecting device for transformer |
| CN204464868U (en) * | 2015-04-14 | 2015-07-08 | 国家电网公司 | A kind of insulation position limitation protection umbrella |
| CN205304135U (en) * | 2016-01-14 | 2016-06-08 | 孝感天创信息科技有限公司 | High voltage transmission cable support device |
| CN206250405U (en) * | 2016-12-02 | 2017-06-13 | 北京华电博慧科技有限公司 | A kind of protective earthing device |
| CN109103732B (en) * | 2018-07-27 | 2019-10-15 | 徐州皇浦世味食品有限公司 | A kind of ground connection earth anchor connection method |
| CN109216950B (en) * | 2018-09-25 | 2020-09-01 | 四川知创知识产权运营有限公司 | Electric power engineering earthing device |
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