CN111009848B - Transmission line shaft tower formula ground system - Google Patents
Transmission line shaft tower formula ground system Download PDFInfo
- Publication number
- CN111009848B CN111009848B CN201911096644.4A CN201911096644A CN111009848B CN 111009848 B CN111009848 B CN 111009848B CN 201911096644 A CN201911096644 A CN 201911096644A CN 111009848 B CN111009848 B CN 111009848B
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- wire
- box body
- sleeve
- connector
- grounding
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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
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
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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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- Electric Cable Installation (AREA)
Abstract
The invention provides a tower type grounding system of a power transmission line, which comprises a grounding wire box and a grounding wire connecting device, wherein the grounding wire box comprises a box body and a retracting mechanism, the box body is provided with a connecting part used for being connected with an electric cross arm so as to detachably fix the box body on the electric cross arm, the retracting mechanism is rotatably arranged in the box body in a penetrating way, two ends of the retracting mechanism protrude out of the box body, a first end of the retracting mechanism is used for leading another grounding wire to the ground, a second end of the retracting mechanism is used for rotating the retracting mechanism, and the box body is provided with a wire outlet; the ground wire connecting device comprises a mounting substrate, a hook used for being hung on an electric wire, a connecting rod and a connector, wherein the mounting substrate, the hook and the connector are all made of conductive materials, the connecting rod is connected to one side, far away from the hook, of the mounting substrate, and the connector is connected with the mounting substrate to be connected with a ground wire led out through a wire outlet hole. This transmission line shaft tower formula ground system helps overhauing the operation and can conveniently dismantle with the electric wire and be connected.
Description
Technical Field
The invention relates to the technical field of electric power overhaul equipment, in particular to a tower type grounding system of a power transmission line.
Background
When the power transmission line is overhauled, the line needs to be grounded.
Among the correlation technique, when the earth connection is too long, can influence the standardization of overhauing the operation, bring inconvenience for overhauing, simultaneously, because have the certain distance between electric wire and the pole for there is the inconvenient, the problem of wasting time and energy of connection when the staff is connected to the earth connection on the electric wire.
Disclosure of Invention
The invention aims to provide a pole tower type grounding system of a power transmission line, which aims to solve the technical problem.
The embodiment of the invention is realized by the following steps: a tower type grounding system of a power transmission line comprises a grounding wire box and a grounding wire connecting device, wherein the grounding wire box comprises a box body and a retracting mechanism, a connecting part used for being connected with an electric cross arm is arranged on the box body so as to detachably fix the box body on the electric cross arm, the retracting mechanism is rotatably arranged in the box body in a penetrating way, two ends of the retracting mechanism protrude out of the box body, a first end of the retracting mechanism is used for guiding another grounding wire to the ground, a second end of the retracting mechanism is used for rotating the retracting mechanism, and a wire outlet hole is formed in the box body;
the ground wire connecting device comprises a mounting substrate, a hook, a connecting rod and a connector, wherein the hook, the connecting rod and the connector are used for being hung on an electric wire, the mounting substrate, the hook and the connector are all made of conducting materials, the connecting rod is connected to one side, far away from the hook, of the mounting substrate, and the connector is connected with the mounting substrate so as to be connected with a ground wire led out through a wire outlet hole.
The embodiment of the invention has the beneficial effects that: when the earth connection is longer, the earth connection can be through on the jack of coiling in the box to make longer earth connection can be linear overlap joint on the electric wire, avoid the earth connection of overlength to influence the maintenance operation, simultaneously, can make things convenient for accomodating and stretching out of earth connection through rotating the jack, when the volume of stretching out is different, can also make this earth connection case be suitable for the different positions department of overlap joint at the electric wire. Because the earth connection can be drawn forth from the wire hole on the box and be connected in on the connector, the staff can easily hang the couple on the electric wire through gripping the connecting rod to be in the same place earth connection connecting device and electric wire connection, it is all more convenient to install and dismantle the earth connection to the staff like this, labour saving and time saving.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a ground box according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of another state of FIG. 1, wherein the cover is in an open state;
fig. 3 is a schematic partial structural diagram of a ground cable box according to an embodiment of the present invention, in which a box cover is not shown;
FIG. 4 is a schematic diagram of the first view angle of FIG. 3;
FIG. 5 is a schematic diagram of the structure of FIG. 3 from a second perspective;
fig. 6 is a schematic structural diagram of a retraction/release mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic partially exploded view of FIG. 6;
fig. 8 is a schematic partial structure diagram of a retraction mechanism according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a ground line connection device according to an embodiment of the present invention;
FIG. 10 is a schematic view showing the structure of the clamping block, the connecting rod and the connecting ring
Fig. 11 is a structural view illustrating another state of fig. 9, in which the connection member and the insulation rod are not shown;
FIG. 12 is a schematic view of the structure of the connector and the insulating rod;
fig. 13 is a schematic structural diagram of a ground wire box and a ground wire joint.
Icon: 100-a box body; 101-a connecting part; 102-fixed block; 103-a diffusion section; 104-a limiting block; 105-outlet holes; 106-a shade; 110-a box cover; 111-unlocking the hole; 112-a cover plate; 113-hanging a lock ring; 120-a pick and place mechanism; 121-connecting tube; 1211-a first mating hole; 1212-threading hole; 122-a wire coil; 1231-rocking handle; 1231 a-a first mating portion; 1231 b-annular groove; 1232-a first cannula; 1233-boss; 1234 a-a second sleeve; 1234 b-top bar; 124-a lead-out assembly; 1241-connecting head; 1241 a-a second mating part; 1241 b-compression part; 1242-ground wire connection; 1243-fixing part; 1244-screw; 125-spring;
200-an insulating rod; 201-a fixed part; 202-switch button; 210-a connector; 211-a first end; 212-a second end; 220-a connecting ring; 221-a constriction; 230-a connecting rod; 231-a fixed head; 240-a mounting substrate; 250-hanging hooks; 260-a clamping block; 261-a clamping groove; 262-a stepped bore; 270-a linker; 280-ground wire connector; 281-thread section; 282-crimping tube; 290-set screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 13, an embodiment of the present invention provides a tower-type grounding system for a power transmission line, where the tower-type grounding system for a power transmission line includes a grounding wire box and a grounding wire connection device.
The ground box includes a box body 100 and a retracting mechanism 120. The shape of the box 100 is not fixed, which may be quadrangular prism or hexagonal prism, etc., referring to fig. 4 and 6, the box 100 is provided with a connecting part 101 for connecting with the power cross arm to detachably fix the box 100 on the power cross arm, wherein the connecting part 101 may be configured in any reasonable structure, for example, may be provided in a plate-shaped structure, since the power cross arm has a through hole, the box 100 may be fixed on the power cross arm by a bolt, the pick-and-place mechanism 120 is rotatably disposed through the box 100 and both ends of the pick-and-place mechanism 120 protrude from the box 100, a first end of the pick-and-place mechanism 120 is used to lead another ground wire to the ground, a second end of the pick-and-place mechanism 120 is used to rotate the pick-and-place mechanism 120, the box 100 is provided with a wire outlet 105, wherein the pick-and-place mechanism 120 is made of a conductive material, so that the ground wire accessed, and is connected to ground via another ground line connected to the first end.
The ground wire connecting device comprises a mounting substrate 240, a hook 250 for hanging on a wire, a connecting rod 230 and a joint 270, wherein the mounting substrate 240 is indefinite in shape and can be circular, rectangular or other shapes, the mounting substrate 240, the hook 250 and the joint 270 are all made of conductive materials, the connecting rod 230 is connected to one side of the mounting substrate 240 far away from the hook 250, and the joint 270 is connected with the mounting substrate 240 to be connected with a ground wire led out through a wire outlet 105.
Based on this, when the grounding wire is longer, the grounding wire can pass through the retraction mechanism 120 wound in the box 100, so that the longer grounding wire can be linearly lapped on the electric wire, thereby avoiding the influence of the overlong grounding wire on the maintenance operation, meanwhile, the retraction and extension of the grounding wire can be facilitated by rotating the retraction mechanism 120, and when the extension amount is different, the grounding wire box can be suitable for being lapped on different positions of the electric wire. Because the grounding wire can be led out from the wire outlet hole 105 on the box body 100 and connected to the connector 270, a worker can easily hang the hook 250 on the wire by holding the connecting rod 230, so that the grounding wire connecting device is connected with the wire, and the installation and the disassembly of the grounding wire for the worker are convenient, time-saving and labor-saving.
Referring to fig. 3, 4 and 5, further, the retracting mechanism 120 includes a connecting tube 121, a rocking handle 1231, an extracting assembly 124 and two coils 122, the rocking handle 1231 is disposed through a first side wall of the box body 100, the extracting assembly 124 is disposed through a second side wall of the box body 100, wherein the box body 100 in the present embodiment may be configured in a quadrangular prism shape, the first side wall and the second side wall are opposite, the connecting tube 121 is disposed between the rocking handle 1231 and the extracting assembly 124, and the two coils 122 are disposed at an interval on an outer circumferential surface of the connecting tube 121 and extend outward in a radial direction of the connecting tube 121, so that the ground wire can be wound on the connecting tube 121 between the two coils 122. The rocking handle 1231 may be bent to facilitate the operator to rotate the retracting mechanism 120.
Referring to fig. 3 and 5, further, a first sidewall of the box 100 is provided with a stopper 104 located in the box 100, the stopper 104 includes a bottom surface facing the bottom of the box 100 and a side surface facing a second sidewall, and the stopper 104 may be square or rectangular. The stop block 104 may be fixed to the inner side of the first sidewall, for example, by welding, bolting, or snapping.
Referring to fig. 3, 4, 5, 6, 7 and 8, the retracting mechanism 120 further includes a locking assembly, the locking assembly includes a first sleeve 1232, a second sleeve 1234a, a top rod 1234b, an elastic member and at least two fixing blocks 102 disposed oppositely, wherein two ends of the first sleeve 1232 are through, the first sleeve 1232 is sleeved on the rocking handle 1231, an axis of the first sleeve 1232 is collinear with an axis of the connecting pipe 121, the first sleeve 1232 is in clearance fit with the rocking handle 1231, and a position of the first sleeve 1232 in a length direction of the rocking handle 1231 is fixed, that is, an inner diameter of the first sleeve 1232 is larger than an outer diameter of the rocking handle 1231, and a position of the first sleeve 1232 in an axial direction of the rocking handle 1231 is fixed and a position of the first sleeve 1232 in a circumferential direction of the rocking handle 1231 is adjustable, in other words, the first sleeve 1232 can rotate relative to the rocking handle 1231, and specifically, an annular groove 1b can be disposed on the rocking handle 1231, and an annular protrusion which is arranged on the inner circumferential surface of the first sleeve 1232 and is in clearance fit with the annular groove 1231b, or an annular groove 1231b is arranged on the inner circumferential surface of the first sleeve 1232, and an annular protrusion is arranged on the rocking handle 1231, so that the first sleeve 1232 can rotate relative to the rocking handle 1231, the second sleeve 1234a is fixedly arranged on the outer circumferential surface of the first sleeve 1232, the second sleeve 1234a can be hollow with one end open or both ends open, but at least the upper end of the second sleeve 1234a is open, the elastic member is arranged in the second sleeve 1234a, one end of the push rod 1234b is in contact with the elastic member and is telescopically arranged in the second sleeve 1234a, in order to ensure that the push rod 1234b cannot be separated from the second sleeve 1234a under the restoring force of the elastic member, one end of the elastic member can be connected with the second sleeve 1234a, the other end of the elastic member can be connected with the push rod 1234b, so that the push rod 1234b is limited from being separated, in addition, a limiting structure may be provided on the second sleeve 1234a to limit the separation of the push rod 1234b from the second sleeve 1234a, a protrusion 1233 extending in the axial direction of the first sleeve 1232 is provided on the outer peripheral surface of the first sleeve 1232, a limiting groove matching with the protrusion 1233 is provided on the first sidewall, the shape of the protrusion 1233 is not fixed, and may be a cylindrical or prismatic structure, and in this embodiment, the protrusion 1233 is preferably provided in a prismatic shape, and the number of the protrusions 1233 may be multiple and distributed along the circumferential direction of the first sleeve 1232.
A spacing space is formed between every two fixing blocks 102, the fixing blocks 102 may be rectangular, and the fixing blocks 102 may be disposed outside the first sidewall in any suitable structure, for example, may be disposed horizontally with respect to the bottom wall of the box 100, may be disposed vertically with respect to the bottom wall of the box 100, or may be disposed obliquely with respect to the bottom wall of the box 100. The retracting mechanism 120 has an unlocking position where one end of the push rod 1234b away from the elastic member abuts against the bottom surface and the protrusion 1233 is separated from the limiting groove outward, and a locking position where the push rod 1234b moves upward and abuts against the side surface of the limiting block 104 and at least a portion of the protrusion 1233 slides inward into the limiting groove so that at least a portion of the rocking handle 1231 is clamped between the two fixing blocks 102, that is, in the unlocking position, the rocking handle 1231 moves toward the outside of the case 100, that is, the rocking handle 1231 moves toward and separates from the limiting space and the limiting groove is not in contact with the protrusion 1233, so that the rocking handle 1231 can rotate to store or draw out the ground wire, and in the locking position, since one end of the push rod 1234b is limited by the side surface of the limiting block 104, the rocking handle 1231 cannot move outward of the case 100, so that the rocking handle 1231 is clamped between the two fixing blocks 102 and cannot rotate, that is, the ground wire cannot be received or drawn at this time.
Such an arrangement, particularly at the locking position, can prevent the rocking handle 1231 from rotating, and further prevent the ground wire from being stored and led out, so that on one hand, the ground wire extending out of the box 100 can be kept at a certain length all the time, and on the other hand, under the condition that the box 100 is sealed, the arrangement is also beneficial to preventing the ground wire in the box 100 from being stolen by a lawbreaker.
The elastic member may be rubber made of an elastic material, or may be a spring or other elastic object.
Referring to fig. 6 and 7, the retracting mechanism 120 further includes a spring 125, the spring 125 is sleeved at one end of the connecting pipe 121 close to the rocking handle 1231, and two ends of the spring 125 are respectively abutted against the wire coil 122 and the first sleeve 1232, the spring 125 has a restoring force to drive the rocking handle 1231 to move out of the box 100 when the push rod 1234b moves downward, it can be understood that, when one end of the push rod 1234b contacts with a side surface of the stopper 104, the spring 125 at this time is compressed by the first sleeve 1232, and when the push rod 1234b is pressed down to make the top end of the push rod 1234b flush with the bottom surface of the stopper 104, under the action of the spring 125, the first sleeve 1232 is pushed by the spring 125 to move out of the box 100, and then the rocking handle 1231 is driven to move out of the box 100, so that for a worker, the unlocking position and the locking position can be quickly switched, and the effects of saving time and labor can be.
Referring to fig. 6, 7 and 8, the rocking handle 1231 includes a first insertion part 1231a configured in a non-cylindrical shape, one end of the connecting tube 121 near the rocking handle 1231 is provided with a first insertion hole 1211 matched with the first insertion part 1231a, the first insertion part 1231a is detachably connected with the first insertion hole 1211, and the first insertion part 1231a may be a triangular prism, a quadrangular prism, a pentagonal prism, or the like. Because the rocking handle 1231 can exit and enter relative to the box body 100 at the unlocking position and the locking position, the rocking handle 1231 and the connecting pipe 121 are detachably connected, so that the position of the connecting pipe 121 is not changed, and the phenomenon that the wire outlet angle of the grounding wire led out from the wire outlet hole 105 is too large due to the change of the position of the connecting pipe 121 is avoided. It should be noted that the detachable connection here does not mean that the first plug part 1231a is completely detached from the first plug hole 1211, but means that the first plug part 1231a can enter into the first plug hole 1211 or exit out of the first plug hole 1211.
In other embodiments, the first insertion hole 1211 may be disposed on the rocking handle 1231, and the first insertion portion 1231a may be disposed on the connecting tube 121.
Referring to fig. 1 and 2, the ground cable box further includes a box cover 110 pivotally connected to the box body 100, the box cover 110 is provided with an unlocking hole 111 communicating with the inside of the box body 100, the unlocking hole 111 corresponds to a side surface of the stopper 104, that is, the unlocking hole 111 is located above the stopper 104, so that a tool can be inserted into the box body 100 through the unlocking hole 111 to apply force to the top lever 1234b, the box body 100 can be closed through the box cover 110, dust can be prevented from entering the box body, and theft prevention is facilitated, and accordingly, the box cover 110 and the box body 100 can be respectively provided with a locking ring 113 to lock the box cover 110 and the box body 100 through the lock.
Referring to fig. 9, 10 and 11, the ground wire connection device further includes a connection ring 220 and an operation assembly, the connection ring 220 is fixedly connected to an end of the connection rod 230 away from the clamping block 260, the connection ring 220 has a constricted portion 221, the operation assembly includes an insulation rod 200 and a connection member 210, the connection member 210 is configured in a curved shape, a first end 211 is fixed to the insulation rod 200, and a second end 212 is configured as an unlocking end, wherein the unlocking end is matched with the unlocking hole 111, and the matching refers to the fact that the shape and size of the unlocking end are consistent with the shape and size of the unlocking hole 111. Therefore, when the unlocking end extends into the box 100 through the unlocking hole 111, the unlocking end can press the push rod 1234b downward, so that the top end surface of the push rod 1234b is flush with the bottom surface of the limiting block 104, and meanwhile, the retraction mechanism 120 can be switched from the locking position to the unlocking position under the action of the restoring force of the spring 125. When the lid 110 is locked to the case 100, the push rod 1234b can be pushed down only by the unlocking end being inserted into the case 100 through the unlocking hole 111, and the ground wire wound around the connection pipe 121 can be led out through the outlet hole 105, which is advantageous for preventing the ground wire from being stolen by a lawbreaker.
The shape of the unlocking hole 111 is not limited, and may be circular, rectangular, or the like.
At least part of the connecting member 210 is clamped in the contraction part 221 to drive the connecting rod 230 to move up and down by rotating the insulating rod 200, and since at least part of the connecting member 210 is clamped in the contraction part 221, when the insulating rod 200 is rotated, the connecting ring 220 can be driven to rotate, and then the connecting rod 230 is driven to rotate.
Referring to fig. 2, further, a cover plate 112 may be rotatably disposed on the case cover 110 to open or close the unlocking hole 111 to prevent rainwater from entering, wherein the cover plate 112 may be connected to the case cover 110 by a hinge, or may be connected to the case cover 110 by a rotating shaft and a bearing seat.
Referring to fig. 6, 7 and 8, the leading-out mechanism includes a connector 1241 and a ground wire connecting portion 1242, the ground wire connecting portion 1242 may be set to be a cylindrical structure, the connector 1241 includes a second inserting portion 1241a coaxial and non-cylindrical with the connecting pipe 121, a second inserting hole matched with the second inserting portion 1241a is provided at one end of the connecting pipe 121 close to the connector 1241, the ground wire connecting portion 1242 is fixedly disposed on the second sidewall, and the connector 1241 is sleeved with the ground wire connecting portion 1242 and is in clearance fit with the connector 1241. Therefore, when the connection pipe 121 rotates, the connection head 1241 can rotate synchronously with the connection pipe 121, and the ground wire connection part 1242 does not rotate, so that another ground wire led to the ground from the ground wire connection part 1242 is prevented from being wound.
Referring to fig. 4 and 6, in the present embodiment, a fixing portion 1243 may be further disposed on the ground wire connecting portion 1242, and the fixing portion 1243 may be disposed at an outer side of the second sidewall, and passes through the second sidewall from the inner side of the second sidewall through a screw 1244 and extends into the fixing portion 1243, so that the ground wire connecting portion 1242 may be prevented from being pulled out of the box 100.
The structures of the second inserting portion 1241a and the second inserting hole are the same as the structures of the first inserting portion 1231a and the first inserting hole 1211, and the description thereof is omitted.
Referring to fig. 6, 7 and 8, in this embodiment, a threading hole 1212 communicating with the inside of the connection tube 121 is formed in the connection tube 121, the threading hole 1212 is located between the two wire coils 122, a pressing portion 1241b coaxial with the second inserting portion 1241a is formed at one end of the second inserting portion 1241a close to the connection tube 121, the pressing portion 1241b and an inner wall of the connection tube 121 form a pressing space to press the ground wire led in through the threading hole 1212, where the ground wire is a ground wire suspended on the electric wire, and because one end of the ground wire is clamped in the pressing space, the end of the ground wire is fixed relative to the connection tube 121, so that the ground wire and the connection tube 121 are prevented from slipping when the ground wire is stored, and the ground wire can be smoothly stored and led out.
It can be understood that when the second inserting hole is separated from the second inserting part 1241a, one end of the ground wire may be separated from between the pressing part 1241b and the inner wall of the connection pipe 121.
Referring to fig. 7 and 8, the rocking handle 1231 includes a first connection section, a second connection section and a third connection section which are connected in sequence, the first connection section, the second connection section and the third connection section are both in a circle shape, and the first connection section and the second connection section are between each other, and both the second connection section and the third connection section are in a circular arc transition, for convenient processing, the rocking handle 1231 can be bent to form the first connection section, the second connection section and the third connection section, the first connection section and the third connection section are parallel to each other, and the third connection section extends towards the outside of the box 100, the first inserting portion 1231a is arranged at the first connection section, and the second connection section is perpendicular to the first connection section and the third connection section respectively.
Referring to fig. 5, a diffusion part 103 is disposed on the inner wall of the box 100, the diffusion part 103 is in a trumpet shape and penetrates axially, the diffusion part 103 is disposed in the circumferential direction of the wire outlet hole 105, and the diameter of one end of the diffusion part 103 facing the inside of the box 100 is larger than that of the other end, since more ground wires are often wound between the two wire coils 122, the angle between different positions on the connection pipe 121 and the center of the wire outlet hole 105 is different, the angle between the position in the middle of the two wire coils 122 and the center of the wire outlet hole 105 is substantially parallel to the first side wall, and the angle between the position close to the two wire coils 122 and the center of the wire outlet hole 105 is larger, when the angle is larger, the received or led ground wires are easily worn on the periphery of the wire outlet hole 105, and by disposing the diffusion part 103, the size of the angle is reduced, thereby reducing.
Referring to fig. 2, in the present embodiment, a shielding portion 106 may be further disposed outside the outlet hole 105 to prevent rainwater from entering.
Referring to fig. 9, 10 and 11, further, the ground wire connecting device further includes a clamping block 260 having a clamping groove 261, the clamping groove 261 having a semicircular vertical cross section, the connecting rod 230 is liftably inserted into the mounting substrate 240, an end of the connecting rod 230 facing the hook 250 is connected to the clamping block 260, the clamping groove 261 and the hook 250 form a clamping space for clamping the electric wire, since the connecting rod 230 is liftably inserted into the mounting substrate 240, that is, the connecting rod 230 can be close to or away from the hook 250, so that the clamping block 260 having the clamping groove 261 can be close to or away from the hook 250, so that the size of the clamping space can be changed by changing the distance between the clamping block 260 and the hook 250, so that the ground wire connecting device can be adapted to electric wires of different diameters, and, when the clamping groove 261 is close to the hook 250, the clamping space can be closed in a circumferential direction, this prevents the hook 250 from being separated from the electric wire, thereby securing stability of the connection of the hook 250.
In this embodiment, the connecting rod 230 is configured as a threaded rod, it should be noted that the connecting rod 230 may be configured as a threaded rod for one section, or the connecting rod 230 may be configured as a threaded rod for the whole section, and a threaded hole matched with the threaded rod is provided on the mounting substrate 240, and the threaded hole penetrates through the mounting substrate 240, so that the clamping block 260 may gradually approach or leave the hook 250 by rotating the connecting rod 230, and in addition, since the threaded rod is matched with the threaded hole and also has a self-locking function, the position of the clamping block 260 may be fixed.
Referring to fig. 10, the clamping block 260 is provided with a stepped hole 262 coaxial with the connecting rod 230, the stepped hole 262 includes a first hole and a second hole coaxial with each other and communicated with each other, the diameter of the first hole is larger than that of the second hole, the stepped hole 262 extends from the bottom surface of the clamping block 260 into the clamping groove 261, the first hole is communicated with the clamping groove 261, the ground wire connecting device further includes a fixing head 231, the fixing head 231 is fixedly connected to one end of the connecting rod 230 close to the clamping block 260, the fixing head 231 includes a first connecting portion, a second connecting portion and a third connecting portion, which are all cylindrical and arranged in sequence, the diameters of the first connecting portion and the third connecting portion are larger than that of the second connecting portion, the first connecting portion is rotatably arranged in the first hole, that is, the first connecting portion is in clearance fit with the first hole, the second connecting portion is rotatably arranged in the second hole, the second connecting portion is in clearance fit with the second hole, the third connecting portion is located on the bottom surface of the clamping block 260, so that when the connecting rod 230 is rotated upwards, the clamping block 260 can be pushed to ascend through the fixing head 231, and since the fixing head 231 is in clearance fit with the stepped hole 262, the fixing head 231 does not drive the clamping block 260 to rotate in the rotating process, and thus the clamping groove 261 can be prevented from being driven to rotate, so that the connection with the electric wire is affected.
Referring to fig. 12, in the present embodiment, a substantially U-shaped fixing portion 201 is disposed on the insulating rod 200, and two open ends of the fixing portion 201 face the end surface of the insulating rod 200, so that the first end 211 is inserted between the fixing portion 201 and the end surface of the insulating rod 200 and is fastened by a fixing screw 290. In this case, the connection member 210 can be easily detached from the insulation rod 200, which is advantageous for accommodating the ground wire connection device.
In other embodiments, the first end 211 of the connecting member 210 may be directly fixed to the end surface of the insulating rod 200.
Referring to fig. 9, 11 and 13, the ground wire connection device further includes a ground wire connector 280 made of a conductive material, the connector 270 is configured in a cylindrical structure, the connector 270 is provided with an internal threaded hole, the ground wire connector 280 is axially penetrated, one end of the ground wire connector 280 is configured as a threaded section 281 matched with the internal threaded hole, the other end is configured as a crimping pipe 282 adapted to be inserted into the outlet hole 105, that is, the outer diameter of the crimping pipe 282 matches the diameter of the outlet hole 105, the ground wire connector 280 can be connected with both the connector 270 and the outlet hole 105, and when the ground wire connector 280 is connected with the outlet hole 105, the ground wire connector 280 can seal the outlet hole 105 to prevent insects from entering the box 100, that is, the ground wire connector 280 is connected with one of the outlet hole 105 and the connector 270. The ground wire passes through the wire outlet hole 105 and the ground wire connector 280 from the connection pipe 121 in this order, and is finally connected to the connector 270.
Referring to fig. 9, in this embodiment, an electroscope (not shown) may be further disposed in the insulation rod 200 to check the electrification of the connection rod 230, the mounting substrate 240, or the hook 250 by the electroscope, so as to ensure safety, and the switch button 202 of the electroscope may protrude from the insulation rod 200.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The tower type grounding system of the power transmission line is characterized by comprising a grounding wire box and a grounding wire connecting device, wherein the grounding wire box comprises a box body (100) and a retracting mechanism (120), a connecting part (101) used for being connected with an electric cross arm is arranged on the box body (100) so as to detachably fix the box body (100) on the electric cross arm, the retracting mechanism (120) rotatably penetrates through the box body (100), two ends of the retracting mechanism (120) protrude out of the box body (100), a first end of the retracting mechanism (120) is used for guiding another grounding wire to the ground, a second end of the retracting mechanism (120) is used for rotating the retracting mechanism (120), and a wire outlet hole (105) is formed in the box body (100);
the grounding wire connecting device comprises a mounting substrate (240), a hook (250) for hanging on a wire, a connecting rod (230) and a joint (270), wherein the mounting substrate (240), the hook (250) and the joint (270) are all made of conductive materials, the connecting rod (230) is connected to one side of the mounting substrate (240) far away from the hook (250), and the joint (270) is connected with the mounting substrate (240) to be connected with a grounding wire led out through a wire outlet hole (105);
the retracting mechanism (120) comprises a connecting pipe (121), a rocking handle (1231), an extracting component (124) and two wire coils (122), wherein the rocking handle (1231) is arranged on a first side wall of the box body (100) in a penetrating manner, the extracting component (124) is arranged on a second side wall of the box body (100) in a penetrating manner, the connecting pipe (121) is arranged between the rocking handle (1231) and the extracting component (124), and the two wire coils (122) are arranged on the outer peripheral surface of the connecting pipe (121) at intervals and extend outwards along the radial direction of the connecting pipe (121);
a limiting block (104) positioned in the box body (100) is arranged on the first side wall of the box body (100), and the limiting block (104) comprises a bottom surface facing the bottom of the box body (100) and a side surface facing the second side wall;
the retracting mechanism (120) further comprises a locking assembly, the locking assembly comprises a first sleeve (1232), a second sleeve (1234a), a push rod (1234b), an elastic piece and at least two fixing blocks (102) which are oppositely arranged, the first sleeve (1232) is sleeved on the rocking handle (1231), the first sleeve (1232) and the rocking handle (1231) are in clearance fit, the position of the first sleeve (1232) in the length direction of the rocking handle (1231) is fixed, the second sleeve (1234a) is fixedly arranged on the outer peripheral surface of the first sleeve (1232), the elastic piece is arranged in the second sleeve (1234a), one end of the push rod (1234b) is in contact with the elastic piece and is telescopically arranged in the second sleeve (1234a), a protruding portion (1233) extending along the axial direction of the first sleeve (1232) is arranged on the outer peripheral surface of the first sleeve (1232), a limiting groove matched with the boss (1233) is formed in the first side wall, and a limiting space is formed between every two fixing blocks (102);
the retraction mechanism (120) is provided with an unlocking position and a locking position, in the unlocking position, one end, far away from the elastic piece, of the top rod (1234b) abuts against the bottom surface, the boss (1233) is separated from the limiting groove outwards, in the locking position, the top rod (1234b) moves upwards and abuts against the side surface, and at least part of the boss (1233) slides inwards to the limiting groove, so that at least part of the rocking handle (1231) is clamped in the limiting space.
2. The mast tower grounding system of claim 1, wherein the retracting mechanism (120) further comprises a spring (125), the spring (125) is sleeved at one end of the connecting pipe (121) close to the rocking handle (1231), two ends of the spring (125) are respectively abutted against the wire coil (122) and the first sleeve (1232), and the spring (125) has a restoring force to drive the rocking handle (1231) to move out of the box body (100) when the top rod (1234b) moves downwards.
3. The tower grounding system for the power transmission line pole as claimed in claim 1, wherein the rocking handle (1231) comprises a first inserting-connecting part (1231a) which is configured to be non-cylindrical, a first inserting-connecting hole (1211) which is matched with the first inserting-connecting part (1231a) is arranged at one end, close to the rocking handle (1231), of the connecting pipe (121), and the first inserting-connecting part (1231a) and the first inserting-connecting hole (1211) are detachably connected.
4. The tower-type grounding system for the power transmission line pole according to claim 1, wherein the grounding line box further comprises a box cover (110) pivoted with the box body (100), an unlocking hole (111) communicated with the interior of the box body (100) is formed in the box cover (110), and the unlocking hole (111) corresponds to the side surface;
the grounding wire connecting device further comprises an operating assembly, the operating assembly comprises an insulating rod (200) and a connecting piece (210) used for driving the connecting rod (230) to rotate, the connecting piece (210) is bent, a first end (211) is fixed to the insulating rod (200), a second end (212) is configured to be an unlocking end, and the unlocking end is suitable for being inserted into the unlocking hole (111) to drive the top rod (1234b) to be pressed downwards.
5. The power transmission line pole tower type grounding system according to claim 1, wherein the leading-out mechanism comprises a connector (1241) and a grounding line connecting part (1242), the connector (1241) comprises a second plugging part (1241a) which is coaxial with the connecting pipe (121) and is non-cylindrical, a second plugging hole matched with the second plugging part (1241a) is formed in one end, close to the connector (1241), of the connecting pipe (121), the grounding line connecting part (1242) is fixedly arranged on the second side wall in a penetrating mode, and the grounding line connecting part (1242) is sleeved on the connector (1241) and is in clearance fit with the connector (1241).
6. The tower-type grounding system for the power transmission line pole as recited in claim 1, wherein the inner wall of the box body (100) is provided with a diffusion part (103), the diffusion part (103) is trumpet-shaped and axially penetrates through, the diffusion part (103) is arranged in the circumferential direction of the outlet hole (105), and the diameter of one end of the diffusion part (103) facing the inside of the box body (100) is larger than that of the other end.
7. The mast tower grounding system of claim 1, wherein the ground wire connection device further comprises a ground wire connector (280), the connector (270) is configured in a cylindrical structure, the connector (270) is provided with an internally threaded hole, the ground wire connector (280) axially penetrates through, one end of the ground wire connector (280) is configured as a threaded segment (281) which is matched with the internally threaded hole, and the other end is configured as a crimping pipe (282) which is suitable for being inserted into the outlet hole (105).
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| CN201911096644.4A CN111009848B (en) | 2019-11-11 | 2019-11-11 | Transmission line shaft tower formula ground system |
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| CN201911096644.4A CN111009848B (en) | 2019-11-11 | 2019-11-11 | Transmission line shaft tower formula ground system |
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| CN111009848B true CN111009848B (en) | 2020-11-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112117719B (en) * | 2020-08-27 | 2022-03-22 | 上海外高桥造船有限公司 | IP44 and novel electrical equipment inlet wire construction equipment of following grade |
| CN112419551A (en) * | 2020-11-18 | 2021-02-26 | 贵州电网有限责任公司 | Remotely controllable grounding device |
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| JPH11205932A (en) * | 1998-01-14 | 1999-07-30 | Hitachi Cable Ltd | Winding type opgw winding machine |
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