CN113258316B - Grounding wire device for low-voltage comprehensive distribution box - Google Patents
Grounding wire device for low-voltage comprehensive distribution box Download PDFInfo
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- CN113258316B CN113258316B CN202110378887.8A CN202110378887A CN113258316B CN 113258316 B CN113258316 B CN 113258316B CN 202110378887 A CN202110378887 A CN 202110378887A CN 113258316 B CN113258316 B CN 113258316B
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- locking
- stud
- clamping
- locking rod
- grounding wire
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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
- H01R11/15—Hook in the form of a screw clamp
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
- H02B1/48—Mounting of devices therein
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a grounding wire device for a low-voltage comprehensive distribution box, and aims to provide a grounding wire device which can be used for hanging a grounding wire in the low-voltage comprehensive distribution box and providing a proper grounding position so as to conveniently hang the grounding wire; and the grounding wire device for the low-voltage comprehensive distribution box can effectively prevent the grounding wire clamp from falling off easily. The clamping head is provided with a clamping groove and a bolt hole communicated with the clamping groove; the locking stud comprises a stud section, a clamping section and a locking head which are sequentially distributed along the axial direction of the locking stud, and the stud section is matched with the bolt hole; the grounding wire assembly comprises a grounding wire clamp matched with the clamping section and a grounding wire electrically connected with the grounding wire clamp; the anti-misoperation device comprises a top column guide hole, a sliding top column arranged in the top column guide hole in a sliding mode, a plurality of locking rod accommodating grooves and rotating locking rods in one-to-one correspondence with the locking rod accommodating grooves.
Description
Technical Field
The invention relates to an earthing device, in particular to an earthing device for a low-voltage comprehensive distribution box.
Background
The low-voltage comprehensive distribution box is a comprehensive control box integrating electric energy distribution, metering, protection, control and reactive compensation. The ground wire is a wire directly connected to the ground and may also be referred to as a safety return line, and the ground wire in the power system is an important tool for ensuring the safety of workers when voltage accidentally appears on a power-off device and a power line. Because the low-voltage comprehensive distribution box does not have a grounding device, a grounding wire needs to be hung in the low-voltage comprehensive distribution box during maintenance operation so as to ensure the safety of operating personnel. At present, hang the earth connection of establishing in the block terminal is synthesized to low pressure (earth connection one end has the earth clamp) and generally adorn the female row department of being qualified for the next round of competitions of total switch sword in the block terminal is synthesized to low pressure, be about to the earth clamp directly press from both sides on female arranging, so, though can realize ground connection, the handle of earth clamp often stretches out outside the cabinet door, when appearing the cabinet door very easily and closing (for example touch the cabinet door carelessly for the cabinet door is closed), the handle of cabinet door extrusion earth clamp causes the problem that the fastener drops. On the other hand, because the female row interval of total plug-in strip outgoing line is on the small side, often can not find suitable position for the earth clamp clamping, often presss from both sides the earth clamp on the head of pile head bolt under the total plug-in strip during specific operation, so, though can realize ground connection, the clamping stability of earth clamp is not good, also causes the problem that the fastener drops easily.
Disclosure of Invention
The invention aims to provide a grounding wire which can be hung in a low-voltage comprehensive distribution box and provides a proper grounding position so as to be convenient for hanging the grounding wire; and the grounding wire device for the low-voltage comprehensive distribution box can effectively avoid the problem that the grounding wire clamp is easy to fall off to influence the safety of operators due to good clamping stability of the grounding wire.
The technical scheme of the invention is as follows:
a grounding wire device for a low-voltage integrated distribution box comprises:
the clamping head is provided with a clamping groove and a bolt hole communicated with the clamping groove;
the locking stud comprises a stud section, a clamping section and a locking head which are sequentially distributed along the axial direction of the locking stud, the stud section is matched with the bolt hole, and the clamping section comprises a clamping connecting column connected with the stud section and limiting end plates arranged at two ends of the clamping connecting column;
the grounding wire assembly comprises a grounding wire clamp matched with the clamping section and a grounding wire electrically connected with the grounding wire clamp;
prevent mistake device of rotation locking formula, prevent mistake device of rotation locking formula is including setting up the fore-set guiding hole on the terminal surface of the locking double-screw bolt that is close to the screw column section, the accommodation hole of setting on the terminal surface of the locking double-screw bolt that is close to the locking head, slip setting is at the slip fore-set in the fore-set guiding hole, the fore-set limiting block of setting on the slip fore-set guiding hole, a plurality of locking lever holding tanks of setting on the lateral surface of centre gripping spliced pole, the rotation locking lever with locking lever holding tank one-to-one, the pin guiding hole that sets up in the locking double-screw bolt and with locking lever holding tank one-to-one, the setting is on holding downthehole wall and with the bar via hole of pin guiding hole one-to-one and the slip pin of setting in the pin guiding hole.
When the grounding wire device for the low-voltage comprehensive distribution box is used, the locking stud is screwed, the chuck and the locking stud are fixed on the outgoing line busbar of the main knife in the low-voltage comprehensive distribution box, and the locking stud is electrically connected with the outgoing line busbar, so that the clamping section of the locking stud becomes the mounting position of a grounding wire clamp, a proper grounding wire is hung in the low-voltage comprehensive distribution box, and the grounding wire is conveniently hung; then, clamping the grounding wire clamp on the clamping connecting column to realize grounding; meanwhile, the grounding wire clamp is positioned between the limiting end plates at the two ends of the clamping connecting column, so that the clamping stability of the grounding wire clamp can be effectively improved, and the problem that the safety of operating personnel is influenced due to the fact that the grounding wire clamp is easy to fall off can be effectively avoided. In addition, after the clamping head and the locking stud are fixed on the outgoing line busbar of the main knife switch in the low-voltage comprehensive distribution box, the locking stud and the surface of the outgoing line busbar are vertically distributed, the grounding wire clamp is clamped on the clamping connecting column, the grounding wire clamp is approximately parallel to the outgoing line busbar, and therefore, even if the cabinet door is closed, the cabinet door can be blocked by the locking stud, the grounding wire clamp cannot be squeezed, and the problem that the wire clamp falls off is caused. Furthermore, the rotation locking type anti-misoperation device can also effectively solve the problem that an operator cannot lock the locking stud due to operation negligence in the process of screwing the locking stud through the locking device, so that the problem that the clamping head is easy to loosen and fall off on the outgoing line busbar is solved, and the problem that the safety of operating personnel is influenced due to the fact that the grounding wire clamp is easy to fall off is further effectively avoided.
Preferably, the top column guide holes and the stop lever guide holes are distributed along the axial extension of the locking studs, the top column guide holes are communicated with the accommodating holes, one end of the sliding top column extends into the accommodating holes, the top column limiting block is positioned in the accommodating holes,
the locking rod holding grooves are uniformly distributed around the circumference of the locking stud, the length direction of the locking rod holding grooves extends along the axial direction of the locking stud, one end of each stop lever guide hole is communicated with one end of the corresponding locking rod holding groove, the other end of each stop lever guide hole extends towards the locking head, the strip-shaped through holes are communicated with the corresponding stop lever guide holes, each sliding stop lever is respectively connected with the sliding support pillars in the holding holes through connecting pieces, the connecting pieces penetrate through the corresponding strip-shaped through holes,
the first end of the rotating locking rod is rotatably arranged in the locking rod containing groove through a rotating shaft, the first end of the rotating locking rod is close to the locking head, the second end of the rotating locking rod extends towards the direction of the stud section, the rotating locking rod can rotate around the rotating shaft and is contained in the locking rod containing groove, the first end of the rotating locking rod is provided with a limiting stop lever which extends outwards, a torsion spring is arranged on the rotating shaft, the second end of the rotating locking rod rotates towards the outer side of the locking rod containing groove under the action of the torsion spring until the limiting stop lever abuts against the bottom wall of the locking rod containing groove, and at the moment, the second end of the rotating locking rod is positioned at the outer side of the locking rod containing groove;
the sliding top column moves towards the clamping groove under the action of the top column compression spring until the top column limiting block abuts against the end face of the accommodating hole, at the moment, the end part of the sliding top column facing the clamping groove is positioned on the outer side of the end face of the locking stud, and the sliding top column drives the sliding stop lever to move towards the locking rod accommodating groove, so that one end of the sliding stop lever extends into the corresponding locking rod accommodating groove and is used for stopping the limiting stop lever abutting against the bottom wall of the locking rod accommodating groove to prevent the rotating locking rod from rotating around the rotating shaft towards the locking rod accommodating groove;
when the end surface of the sliding top column facing the clamping groove is flush with the end surface of the locking stud where the top column guide hole is located, the sliding top column drives the sliding stop lever to move towards the stop lever guide hole, and the sliding stop lever is enabled to completely move into the stop lever guide hole.
Preferably, when the limit stop lever abuts against the bottom wall of the locking lever accommodating groove, the included angle between the axis of the rotary locking lever and the axis of the locking stud is 20-35 degrees.
Preferably, the fore-set guiding hole is the shoulder hole, and the fore-set guiding hole includes the tip guiding hole, is located the connection guiding hole between tip guiding hole and the accommodation hole and forms in the tip guiding hole and connect the step face between the guiding hole, connects guiding hole intercommunication tip guiding hole and accommodation hole, and the cross-sectional area of connecting the guiding hole is less than the cross-sectional area of tip guiding hole, the top post that slides is including the tip fore-set that slides in the tip guiding hole and the spliced pole of sliding in connecting the guiding hole.
Preferably, the ejection column compression spring is located between the end ejection column and the step surface, one end of the connecting column extends into the accommodating hole, the ejection column limiting block is arranged on the connecting column, and the connecting piece is connected with the connecting column located in the accommodating hole.
Preferably, the other end of the stop lever guide hole is communicated with the end face of the locking stud close to the locking head.
Preferably, the locking rod accommodating groove is located between the limiting end plates at the two ends of the clamping connecting column, one end of the locking rod accommodating groove is close to one of the limiting end plates, and the other end of the locking rod accommodating groove is close to the other limiting end plate.
Preferably, the locking head is a hexagonal cylinder head or a quadrangular cylinder head.
Preferably, the chuck comprises two mutually parallel clamping plates and a connecting part for connecting the two clamping plates, a space enclosed between the two clamping plates and the connecting part forms the clamping groove, and the bolt hole is formed in one of the clamping plates.
The invention has the beneficial effects that: the grounding wire can be hung in the low-voltage comprehensive distribution box, and a proper grounding position is provided so as to be convenient for hanging the grounding wire; and the ground wire has good clamping stability, and the problem that the safety of operators is influenced due to the fact that the ground wire clamp is easy to fall off can be effectively avoided.
Drawings
Fig. 1 is a schematic sectional view of a ground wire device for a low-voltage integrated distribution box according to the present invention (a ground wire assembly is not shown).
Fig. 2 is an enlarged view of a portion of fig. 1 at a.
Fig. 3 is a schematic structural view of a grounding wire device for a low-voltage integrated distribution box according to the present invention in an actual use process.
In the figure:
the clamping head is 1, the clamping groove is 1.1, and the clamping plate is 1.2;
the locking device comprises a locking stud 2, a stud section 2.1, a clamping section 2.2, a clamping connecting column 2.21, a limiting end plate 2.22 and a locking head 2.3;
the anti-misoperation device comprises a rotary locking type anti-misoperation device 3, a top column guide hole 3.1, a containing hole 3.2, a sliding top column 3.3, a top column compression spring 3.4, a locking rod containing groove 3.5, a rotary locking rod 3.6, a top column limiting block 3.7, a rotating shaft 3.8, a limiting stop lever 3.9, a stop lever guide hole 3.10, a sliding stop lever 3.11 and a strip-shaped through hole 3.12;
and the outlet busbar 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1 and 2, the grounding wire device for the low-voltage comprehensive distribution box comprises a chuck 1, a locking stud 2, a grounding wire assembly and a rotary locking type anti-misoperation device 3.
Be equipped with draw-in groove 1.1 on the dop and with the bolt hole of draw-in groove intercommunication, in this embodiment, the dop includes two blocks of cardboard 1.2 that are parallel to each other and the connecting portion of connecting two blocks of cardboards, the space that encloses between two blocks of cardboards and the connecting portion constitutes the draw-in groove, the bolt hole sets up on one of them cardboard. And the axis of the bolt hole is vertical to the clamping plate.
The locking stud 2 comprises a stud section 2.1, a clamping section 2.2 and a locking head 2.3 which are sequentially distributed along the axial direction of the locking stud. The screw column section is matched with the bolt hole, the locking screw column is installed on the chuck, and the axis of the locking screw column is vertical to the chuck plate. The clamping section comprises a clamping connecting column 2.21 connected with the stud section and limiting end plates 2.22 arranged at two ends of the clamping connecting column. In this embodiment, the locking head is a hexagonal column head or a quadrangular column head.
The grounding wire assembly comprises a grounding wire clamp matched with the clamping section and a grounding wire electrically connected with the grounding wire clamp.
The rotation locking type anti-misoperation device 3 comprises a top column guide hole 3.1 arranged on the end face of a locking stud close to a stud section, a containing hole 3.2 arranged on the end face of the locking stud close to a locking head, a sliding top column 3.3 arranged in the top column guide hole in a sliding mode, a top column limiting block 3.7 arranged on the sliding top column, a top column compression spring 3.4 arranged in the top column guide hole, a plurality of locking rod containing grooves 3.5 arranged on the outer side face of a clamping connecting column, rotation locking rods 3.6 in one-to-one correspondence with the locking rod containing grooves, stop rod guide holes 3.10 arranged in the locking stud and in one-to-one correspondence with the locking rod containing grooves, and strip-shaped through holes 3.12 arranged on the inner wall of the containing hole and in one-to-one correspondence with the stop rod guide holes and sliding stop rods 3.11 arranged in the stop rod guide holes in one-to one correspondence. In this embodiment, the number of the locking rod accommodating grooves is four, and the number of the rotating locking rods is also 4.
And the top column guide holes are distributed along the axial extension of the locking stud. The stop lever guide holes are distributed along the axial extension of the locking stud. The fore-set guiding hole is communicated with the accommodating hole, one end of the sliding fore-set extends into the accommodating hole, and the fore-set limiting block is positioned in the accommodating hole. The top post that slides can slide in the top post guiding hole, and the top post that slides can not rotate in the top post guiding hole, and in this embodiment, be equipped with axial extension's axial spacing groove in the top post guiding hole, be equipped with on the top post that slides with axial spacing groove complex slider to realize that the top post that slides can slide in the top post guiding hole, the top post that slides can not rotate in the top post guiding hole.
The locking rod accommodating grooves 3.5 are uniformly distributed around the circumference of the locking stud, and the length direction of the locking rod accommodating grooves extends along the axial direction of the locking stud. In this embodiment, the locking rod holding tank is located between the spacing end plates at the both ends of the clamping connection column, and one end of the locking rod holding tank is close to one of the spacing end plates, and the other end of the locking rod holding tank is close to the other spacing end plate.
One end of the stop lever guide hole is communicated with one end of the corresponding locking rod accommodating groove, and the other end of the stop lever guide hole extends towards the locking head. The bar via hole communicates with the pin guiding hole that corresponds, and each slip pin is connected with the slip fore-set that is located the accommodation hole through the connecting piece respectively, and the connecting piece passes corresponding bar via hole.
The first end of the rotary locking rod 3.6 is rotatably arranged in the locking rod accommodating groove through the rotating shaft 3.8, the first end of the rotary locking rod is close to the locking head, and the second end of the rotary locking rod extends towards the direction of the stud section. The rotation locking rod can rotate around the rotating shaft and is contained in the locking rod containing groove. The first end of the rotary locking rod is provided with a limit stop lever 3.9 which extends outwards. Be equipped with the torsional spring (not shown in the torsional spring picture) in the pivot, the second end of rotating the locking lever rotates toward the outside of locking lever holding tank under the effect of torsional spring, and until spacing pin supports the diapire at the locking lever holding tank, at this moment, the second end of rotating the locking lever is located the outside of locking lever holding tank. In this embodiment, when the limiting blocking rod abuts against the bottom wall of the locking rod accommodating groove, the included angle between the axis of the rotating locking rod and the axis of the locking stud is 20 degrees, 30 degrees or 35 degrees.
As shown in fig. 1, the sliding top pillar moves toward the clamping groove under the action of the top pillar compression spring until the top pillar limiting block abuts against the end face of the accommodating hole, at this time, the end portion of the sliding top pillar facing the clamping groove is located on the outer side of the end face of the locking stud, and the sliding top pillar drives the sliding blocking rod to move toward the locking rod accommodating groove, so that one end of the sliding blocking rod extends into the corresponding locking rod accommodating groove. Stretch into the slip pin in the locking lever holding tank that corresponds and be used for blockking the spacing pin that supports on the diapire of locking lever holding tank to prevent to rotate the locking lever and revolute the axle toward the locking lever holding tank internal rotation, it is specific, the spacing pin that supports on the diapire of locking lever holding tank lies in and stretches into between the slip pin in the locking lever holding tank that corresponds and the diapire of locking lever holding tank, in order to realize preventing to rotate the locking lever and revolute the axle toward the locking lever holding tank internal rotation.
As shown in fig. 3, when the end surface of the sliding top pillar facing the slot is flush with the end surface of the locking stud where the top pillar guide hole is located, the sliding top pillar drives the sliding stop lever to move into the stop lever guide hole, and the sliding stop lever is enabled to completely move into the stop lever guide hole; at this time, the rotation locking rod can rotate towards the locking rod accommodating groove around the rotating shaft.
The specific use of the grounding wire device for the low-voltage integrated distribution box of the embodiment is as follows:
firstly, an operator brings an insulating glove and inserts the outgoing bus bar 4 into a clamping groove of a clamping head;
secondly, an operator screws the locking stud through the matching of a locking device and a locking head, wherein the locking device is a pliers or a wrench; the end face of the locking stud is tightly pressed on the outgoing busbar, so that the clamping head and the locking stud are fixed on the outgoing busbar of the main knife in the low-voltage comprehensive distribution box, the locking stud is electrically connected with the outgoing busbar, the clamping section of the locking stud becomes the installation position of the grounding wire clamp, a grounding wire is hung in the low-voltage comprehensive distribution box, and a proper grounding position is provided for conveniently hanging the grounding wire; at the moment, the locking studs and the surface of the outgoing line busbar are vertically distributed;
thirdly, clamping the grounding wire clamp on the clamping connecting column to realize grounding; meanwhile, the grounding wire clamp is positioned between the limiting end plates at the two ends of the clamping connecting column, so that the clamping stability of the grounding wire clamp can be effectively improved, and the problem that the safety of operating personnel is influenced because the grounding wire clamp is easy to fall off can be effectively avoided; in addition, because the locking stud is vertical distribution with the surface of female arranging of being qualified for the next round of competitions, the back is arranged on the centre gripping spliced pole to the earth clamp centre gripping, and the earth clamp roughly parallels with female arranging of being qualified for the next round of competitions, so, even appear the cabinet door and close, the cabinet door also can be blocked by the locking stud, can not extrude the earth clamp, and the problem that causes the fastener to drop.
Fourthly, after the overhaul operation is completed, the grounding wire clamp is firstly disassembled, then the locking stud is unscrewed, and the clamping head and the locking stud are disassembled.
Furthermore, the rotary locking type anti-misoperation device can effectively solve the problems that an operator cannot lock the locking stud due to operation negligence in the process of screwing the locking stud through the locking device, so that the clamping assembly is easy to loosen and fall off on the outgoing line bus bar and the clamping assembly is easy to loosen and fall off on the outgoing line bus bar, thereby further effectively avoiding the problem that the safety of an operator is influenced by the fact that the grounding wire clamp is easy to fall off,
in a second step of the specific use of the above-mentioned earthing device for a low-voltage integrated switchgear,
as shown in fig. 3, if the operation of tightening the locking stud by an operator meets the specification, the locking stud is reliably tightened, in the process of tightening the locking stud by the operator, the end of the sliding support pillar firstly abuts against the outgoing line bus bar, so that the outgoing line bus bar is tightly pressed between the end of the sliding support pillar and one of the clamping plates, and then the operator continues to tighten the locking stud, so that the action force of the compression spring of the support pillar is overcome, the sliding push rod moves towards the locking head until the end face of the sliding support pillar is flush with the end face of the locking stud where the guide hole of the support pillar is located, and at the moment, the end face of the locking stud is tightly pressed on the outgoing line bus bar, so that the chuck is stably fixed on the outgoing line bus bar through the locking stud; meanwhile, the sliding top column drives the sliding stop lever to move towards the stop lever guide hole and enables the sliding stop lever to completely move into the stop lever guide hole, and at the moment, the rotating locking lever can rotate towards the locking lever accommodating groove around the rotating shaft; in the third step of the specific use of the grounding wire device for the low-voltage comprehensive distribution box, when the grounding wire clip is clamped on the clamping connecting column, the clamping force of the grounding wire clip can smoothly overcome the torsion force of the torsion spring, so that the rotating locking rod rotates towards the locking rod accommodating groove around the rotating shaft and is accommodated in the locking rod accommodating groove, and the grounding wire clip can be stably clamped on the clamping connecting column to realize grounding;
if the locking stud is not locked due to operation negligence in the process of screwing the locking stud by an operator, namely the end surfaces of the sliding top column and the locking stud are not tightly pressed on the outgoing line busbar or only the sliding top column is tightly pressed on the outgoing line busbar, but the end surface of the locking stud is not tightly pressed on the outgoing line busbar, the clamping assembly is easy to loosen and fall off on the outgoing line busbar; because the end face of the locking stud is not tightly pressed on the outgoing bus bar, at the moment, the sliding top column does not drive the sliding blocking rod to move towards the locking rod accommodating groove, and one end of the sliding blocking rod still extends into the corresponding locking rod accommodating groove and is used for blocking the limiting blocking rod which is abutted against the bottom wall of the locking rod accommodating groove; or the sliding top column drives the sliding blocking rod to move towards the locking rod accommodating groove, but one end of the sliding blocking rod still extends into the corresponding locking rod accommodating groove and is used for blocking the limiting blocking rod which abuts against the bottom wall of the locking rod accommodating groove; thus, in the third step of the specific use of the grounding wire device for the low-voltage comprehensive distribution box, when the grounding wire clamp is clamped on the clamping connecting column, because the rotary locking rod can not rotate, the grounding wire clamp is blocked by the rotary locking rod and can not be clamped on the clamping connecting column, thus an operator can be reminded that the locking stud is not locked, so that the operator continues to lock the locking stud, the end surface of the locking stud and the end surface of the sliding ejection column are simultaneously pressed on the outgoing line busbar, therefore, on one hand, the clamping head is stably fixed on the wire outlet bus bar of the main knife switch in the low-voltage comprehensive distribution box through the locking stud, on the other hand, the rotating locking rod rotates around the rotating shaft to the locking rod accommodating groove and is accommodated in the locking rod accommodating groove, so that the operator can smoothly clamp the grounding wire clamp on the clamping connecting column to realize grounding.
Further, as shown in fig. 1, the top pillar guide hole is a stepped hole, and the top pillar guide hole includes an end portion guide hole, a connection guide hole located between the end portion guide hole and the accommodation hole, and a stepped surface formed between the end portion guide hole and the connection guide hole. The connecting guide hole is communicated with the end guide hole and the accommodating hole, and the cross sectional area of the connecting guide hole is smaller than that of the end guide hole. The sliding top column comprises an end top column sliding in the end guide hole and a connecting column sliding in the connecting guide hole. The top column compression spring is positioned between the end top column and the step surface, and the top column limiting block is arranged on the connecting column. One end of the connecting column extends into the accommodating hole, the top column limiting block is arranged on the connecting column, and the connecting piece is connected with the connecting column in the accommodating hole.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a low pressure is synthesized earth connection device that block terminal was used, characterized by includes:
the clamping head is provided with a clamping groove and a bolt hole communicated with the clamping groove, the clamping head comprises two clamping plates which are parallel to each other and a connecting part for connecting the two clamping plates, a space enclosed by the two clamping plates and the connecting part forms the clamping groove, and the bolt hole is arranged on one clamping plate;
the locking stud comprises a stud section, a clamping section and a locking head which are sequentially distributed along the axial direction of the locking stud, the stud section is matched with the bolt hole, and the clamping section comprises a clamping connecting column connected with the stud section and limiting end plates arranged at two ends of the clamping connecting column;
the grounding wire assembly comprises a grounding wire clamp matched with the clamping section and a grounding wire electrically connected with the grounding wire clamp;
the locking device comprises a locking stud section, a locking head, a locking stud section, a locking stud guide hole, a sliding stud stopper, a stud compression spring, a locking stud compression spring, a plurality of locking stud accommodating grooves, a plurality of locking rod accommodating holes, rotating locking rods, a stop lever guide hole, a bar-shaped through hole and a sliding stop lever, wherein the locking stud section is arranged on the end face of the locking stud section;
the top column guide holes and the stop lever guide holes are distributed along the axial extension of the locking studs, the top column guide holes are communicated with the accommodating holes, one end of the sliding top column extends into the accommodating holes, the top column limiting block is positioned in the accommodating holes,
the locking rod holding grooves are uniformly distributed around the circumference of the locking stud, the length direction of the locking rod holding grooves extends along the axial direction of the locking stud, one end of each stop lever guide hole is communicated with one end of the corresponding locking rod holding groove, the other end of each stop lever guide hole extends towards the locking head, the strip-shaped through holes are communicated with the corresponding stop lever guide holes, each sliding stop lever is respectively connected with the sliding support pillars in the holding holes through connecting pieces, the connecting pieces penetrate through the corresponding strip-shaped through holes,
the first end of the rotating locking rod is rotatably arranged in the locking rod containing groove through a rotating shaft, the first end of the rotating locking rod is close to the locking head, the second end of the rotating locking rod extends towards the direction of the stud section, the rotating locking rod can rotate around the rotating shaft and is contained in the locking rod containing groove, the first end of the rotating locking rod is provided with a limiting stop lever which extends outwards, a torsion spring is arranged on the rotating shaft, the second end of the rotating locking rod rotates towards the outer side of the locking rod containing groove under the action of the torsion spring until the limiting stop lever abuts against the bottom wall of the locking rod containing groove, and at the moment, the second end of the rotating locking rod is positioned at the outer side of the locking rod containing groove;
the sliding top column moves towards the clamping groove under the action of the top column compression spring until the top column limiting block abuts against the end face of the accommodating hole, at the moment, the end part of the sliding top column facing the clamping groove is positioned on the outer side of the end face of the locking stud, and the sliding top column drives the sliding stop lever to move towards the locking rod accommodating groove, so that one end of the sliding stop lever extends into the corresponding locking rod accommodating groove and is used for stopping the limiting stop lever abutting against the bottom wall of the locking rod accommodating groove to prevent the rotating locking rod from rotating around the rotating shaft towards the locking rod accommodating groove;
when the end surface of the sliding top column facing the clamping groove is flush with the end surface of the locking stud where the top column guide hole is located, the sliding top column drives the sliding stop lever to move towards the stop lever guide hole, and the sliding stop lever is enabled to completely move into the stop lever guide hole.
2. The grounding wire device for low-voltage integrated distribution box according to claim 1, wherein when the limit stop lever abuts against the bottom wall of the locking lever receiving groove, the angle between the axis of the locking lever and the axis of the locking stud is 20-35 degrees.
3. The grounding wire device for the low-voltage comprehensive distribution box according to claim 1 or 2, wherein the top pillar guide hole is a stepped hole, the top pillar guide hole comprises a tip guide hole, a connection guide hole positioned between the tip guide hole and the accommodation hole, and a step surface formed between the tip guide hole and the connection guide hole, the connection guide hole communicates the tip guide hole with the accommodation hole, the cross-sectional area of the connection guide hole is smaller than that of the tip guide hole, and the sliding top pillar comprises a tip top pillar sliding in the tip guide hole and a connecting pillar sliding in the connection guide hole.
4. The grounding wire device for the low-voltage integrated distribution box according to claim 3, wherein the top pillar compression spring is located between the top pillar at the end portion and the step surface, one end of the connecting pillar extends into the accommodating hole, the top pillar stopper is disposed on the connecting pillar, and the connecting member is connected to the connecting pillar located in the accommodating hole.
5. The grounding wire device for the low-voltage comprehensive distribution box according to claim 1 or 2, wherein the other end of the stop lever guide hole is communicated with the end surface of the locking stud adjacent to the locking head.
6. The grounding wire device for the low-voltage comprehensive distribution box according to claim 1 or 2, wherein the locking rod accommodating groove is located between the limiting end plates at the two ends of the clamping connection column, one end of the locking rod accommodating groove is close to one of the limiting end plates, and the other end of the locking rod accommodating groove is close to the other limiting end plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110378887.8A CN113258316B (en) | 2021-04-08 | 2021-04-08 | Grounding wire device for low-voltage comprehensive distribution box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110378887.8A CN113258316B (en) | 2021-04-08 | 2021-04-08 | Grounding wire device for low-voltage comprehensive distribution box |
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| Publication Number | Publication Date |
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| CN113258316A CN113258316A (en) | 2021-08-13 |
| CN113258316B true CN113258316B (en) | 2022-04-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374397Y (en) * | 2009-02-18 | 2009-12-30 | 宁波电业局 | Portable type short-circuit grounding device |
| CN107681595A (en) * | 2017-08-08 | 2018-02-09 | 国网浙江省电力公司丽水供电公司 | A kind of taper lock compact form strain clamp for being easy to safeguard |
| CN214673471U (en) * | 2021-04-08 | 2021-11-09 | 国网浙江桐乡市供电有限公司 | Earthing device for low-voltage distribution box |
-
2021
- 2021-04-08 CN CN202110378887.8A patent/CN113258316B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374397Y (en) * | 2009-02-18 | 2009-12-30 | 宁波电业局 | Portable type short-circuit grounding device |
| CN107681595A (en) * | 2017-08-08 | 2018-02-09 | 国网浙江省电力公司丽水供电公司 | A kind of taper lock compact form strain clamp for being easy to safeguard |
| CN214673471U (en) * | 2021-04-08 | 2021-11-09 | 国网浙江桐乡市供电有限公司 | Earthing device for low-voltage distribution box |
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| CN113258316A (en) | 2021-08-13 |
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