CN109962349B - A spacer and grounding grid system for grounding grid - Google Patents
A spacer and grounding grid system for grounding grid Download PDFInfo
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- CN109962349B CN109962349B CN201910233349.2A CN201910233349A CN109962349B CN 109962349 B CN109962349 B CN 109962349B CN 201910233349 A CN201910233349 A CN 201910233349A CN 109962349 B CN109962349 B CN 109962349B
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- fastening
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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Abstract
The invention relates to a spacing device for a grounding grid, which comprises a spacing main body, a first fastening assembly, a first connecting assembly, a second fastening assembly and a second connecting assembly. The first fastening assembly is arranged at the first end of the spacing main body, the first connecting assembly is rotatably connected to the first end, the first fastening assembly comprises a first fastening piece and a second fastening piece, the first fastening piece enables the first connecting assembly to be inseparable relative to the spacing main body, the second fastening piece is arranged between the first fastening piece and the spacing main body, and the first fastening piece is operably fastened or released so that the first connecting assembly is fixed or can rotate relative to the first end. The second fastening component has the same structure as the first fastening component, and the second connecting component has the same structure as the first connecting component. Fix the earthing pole respectively with treating the interval component at first coupling assembling and second coupling assembling to realize the earthing pole of a plurality of directions and treat the connection between the interval component, simple structure easily implements. The invention also relates to a grounding grid system.
Description
Technical Field
The invention relates to the technical field of grounding equipment of a grounding grid system, in particular to a spacing device for a grounding grid and the grounding grid system.
Background
The grounding grid is a mesh structure formed by embedding a plurality of conductive grounding electrodes at a certain depth underground and connecting the conductive grounding electrodes with conductors. The novel shielding device is widely applied to industries such as electric power, buildings, computers, industrial and mining enterprises and communication, and plays roles in safety protection, shielding and the like.
The existing grounding grid is usually a multi-material combined grounding grid, when the multi-material combined grounding grid is in construction, if two grounding electrodes made of different materials are buried in a grounding trench and contact occurs, backflow is easily formed between the two grounding electrodes, and the overall flow dispersion effect of the grounding grid is affected.
Disclosure of Invention
In view of the above, it is necessary to provide a spacer for a ground net and a ground net system capable of effectively preventing the ground electrodes made of two different materials in the ground net from contacting each other and ensuring the overall current dispersion effect of the ground net, in order to solve the problem that the conventional ground electrodes made of two different materials are likely to contact each other and the overall current dispersion effect of the ground net is affected.
A spacer for a ground grid comprising:
a spacer body having opposing first and second ends;
one end of the first connecting component is rotatably connected to the first end of the spacing main body, and the other end of the first connecting component is used for connecting a grounding electrode;
a first fastening assembly including a first fastening member disposed at the first end of the spacer body for inseparably coupling an end of the first connection assembly to the spacer body relative to the spacer body, and a second fastening member disposed between the first fastening member and the spacer body and configured to operatively fasten or release the first connection assembly, thereby fixing or rotating the first connection assembly relative to the first end;
one end of the second connecting component is rotatably connected to the second end of the spacing main body, and the other end of the second connecting component is used for connecting a member to be spaced;
a second fastening assembly including a third fastener and a fourth fastener, the third fastener being disposed at the second end of the spacer body for making an end of the second connection assembly connected to the spacer body inseparable relative to the spacer body, the fourth fastener being disposed between the third fastener and the spacer body and being configured to operably fasten or release the second connection assembly, thereby making the second connection assembly fixed or rotatable relative to the second end.
By arranging the spacing device for the grounding grid, when the spacing component is the grounding electrode made of another material, the first connecting assembly and the second connecting assembly are respectively and rotatably arranged at the opposite first end and the second end of the spacing main body, the grounding electrode made of one material of the grounding grid is connected to the first connecting assembly, the grounding electrode made of another material is connected to the second connecting assembly, and the first connecting assembly and the second connecting assembly are fixed through the second fastener and the fourth fastener respectively, so that the two grounding electrodes are kept fixed. Therefore, the spacing distance between the grounding electrodes made of two materials can depend on the length between the first end and the second end of the spacing main body, the two grounding electrodes are effectively spaced, and the overall current dispersion effect of the grounding grid is improved.
Meanwhile, the to-be-spaced component can also be an underground pipeline or a communication cable and the like, and the connecting component can rotate at the first end and the second end, so that the spacing device can be used for two grounding poles in different directions, the underground pipeline, the grounding poles in different directions, the communication cable and the like, and the universality is high. In addition, the spacer device is simple in structure, firm in connection and easy to implement.
In one embodiment, the first connecting assembly includes a connecting member having one end rotatably connected to the first end, and a fixing mechanism detachably connected to an end of the connecting member away from the spacer body for connecting to a ground electrode.
In one embodiment, the connecting member includes a first connecting portion and a second connecting portion, the first connecting portion is rotatably connected to the first end of the spacer body;
one end of the second connecting part is fixedly connected with the first connecting part, and the other end of the second connecting part is in threaded connection with the fixing mechanism.
In one embodiment, the fixing mechanism comprises a first fixing piece and a second fixing piece, and one end of the connecting piece, which is far away from the spacing main body, is detachably connected with the first fixing piece;
one end of the first fixing piece is pivotally connected with one end of the second fixing piece, the first fixing piece is in a first fixing state, when the first fixing piece is in the first fixing state, the first fixing piece and the second fixing piece are arranged in an enclosing mode to form a first fixing ring, and the grounding electrode is fixed in the first fixing ring.
In one embodiment, the fixing mechanism further comprises a locking member, wherein the locking member is connected to the first fixing member and detachably connected to the second fixing member, and is used for keeping the first fixing member in the first fixing state.
In one embodiment, the spacer body further comprises a positioning portion disposed at the first end;
the first fastening assembly further comprises an adjusting piece, the adjusting piece is arranged on the positioning portion, connected with the second fastening piece and used for adjusting the second fastening piece so as to enable the second fastening piece to fasten or release the first connecting assembly.
In one embodiment, the spacer further includes a first positioning member, the first positioning member is disposed through the first fastening member and detachably connected to the first end of the spacer body, so as to fix the first fastening member to the first end of the spacer body.
In one embodiment, the spacer body comprises a first spacer portion and a second spacer portion sequentially arranged along a first direction, the first spacer portion is connected to the second spacer portion, and the distance between the first spacer portion and the second spacer portion is adjustable along the first direction;
the first fastening component is arranged at one end of the first spacing part, which is far away from the second spacing part, and the second fastening component is arranged at one end of the second spacing part, which is far away from the first spacing part.
In one embodiment, the first fastening component and the second fastening component are identical in structure; the first connecting component and the second connecting component have the same structure.
A grounding grid system comprises a grounding grid and the spacing device for the grounding grid in the embodiment, wherein the grounding grid comprises a plurality of grounding electrodes, and the spacing device is connected between the grounding electrodes and a member to be spaced.
Drawings
Fig. 1 is a schematic structural diagram of a spacer for a ground grid according to an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of another angle of the spacer shown in FIG. 1;
FIG. 3 is a schematic view of a connector of the first connector assembly of the spacer shown in FIG. 1;
FIG. 4 is a schematic structural view of a securing mechanism of a first coupling assembly of the spacer shown in FIG. 1;
fig. 5 is a schematic view of a first fastening assembly of the spacer shown in fig. 1.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, a spacer 10 for a ground grid according to an embodiment of the present invention includes a spacer body 12, a first fastening assembly 14, a first connecting assembly 16, a second fastening assembly 18, and a second connecting assembly 19.
The spacer body 12 has opposite first and second ends.
One end of the first connecting component 16 is rotatably connected to the first end of the spacing main body 12, and the other end is used for connecting a grounding electrode; the first fastening assembly 14 includes a first fastening member 142 disposed at the first end of the spacer body 12 for non-detachably connecting the end of the first connection assembly 16 connected to the spacer body 12 relative to the spacer body 12, and a second fastening member disposed between the first fastening member 142 and the spacer body 12 and configured to operatively fasten or release the first connection assembly 16, thereby fixing or rotating the first connection assembly 16 relative to the first end.
The second connecting assembly 19 has one end rotatably connected to the second end of the spacing body 12 and the other end for connecting the members to be spaced; the second fastening assembly 18 includes a third fastening member provided at the second end of the spacer body 12 for inseparably coupling an end of the second connecting assembly 19 coupled to the spacer body 12 with respect to the spacer body 12, and a fourth fastening member provided between the third fastening member and the spacer body 12 and configured to operatively fasten or release the second connecting assembly 19 so that the end of the second connecting assembly 19 is fixed or rotatable with respect to the second end.
By providing the above-mentioned spacer for the grounding grid, when the spacer is a grounding electrode made of another material, the first connecting assembly 16 and the second connecting assembly 19 are rotatably connected to the first end and the second end of the spacer body 12, respectively, the grounding electrode made of one material of the grounding grid is connected to the first connecting assembly 16, the grounding electrode made of another material is connected to the second connecting assembly 19, and the first connecting assembly 16 and the second connecting assembly 19 are fixed by the second fastener and the fourth fastener, respectively, so that the two grounding electrodes are kept fixed. In this way, the spacing distance between the grounding electrodes made of two materials can depend on the length between the first end and the second end of the spacing body 12, so that the two grounding electrodes are effectively spaced, and the overall current dispersion effect of the grounding grid is improved.
Meanwhile, the to-be-spaced component can also be an underground pipeline or a communication cable and the like, and the connecting component can rotate at the first end and the second end, so that the spacing device can be used for two grounding poles in different directions, the underground pipeline, the grounding poles in different directions, the communication cable and the like, and the universality is high. In addition, the spacer device is simple in structure, firm in connection and easy to implement.
In some embodiments, the spacer body 12 includes a first spacer portion 122 and a second spacer portion 124 sequentially arranged along a first direction at intervals, and the first spacer portion 122 is connected to the second spacer portion 124, the first fastening element 14 is disposed at an end of the first spacer portion 122 away from the second spacer portion 124, the second fastening element 18 is disposed at an end of the second spacer portion 124 away from the first spacer portion 122, that is, an end of the first spacer portion 122 away from the second spacer portion 124 is a first end, an end of the second spacer portion 124 away from the first spacer portion 122 is a second end, and the first spacer portion 122 and the second spacer portion 124 are arranged along the first direction, so the first end and the second end are two ends of the spacer body 12 opposite to each other along the first direction.
Further, the distance between the first and second spacers 122 and 124 is adjustable along the first direction. As such, the distance between the first end of the first spacer 122 and the second end of the second spacer 124 may be adjusted, thereby adjusting the spacing distance between the ground electrode and the member to be spaced. Specifically, the entire spacer body 12 is substantially a cylinder, and the first and second spacers 122 and 124 are also cylindrical. Wherein the first direction is an axial direction of the substantially cylindrical spacer body 12.
In some embodiments, the spacer body 12 includes a connection screw, the connection screw is disposed on the first spacer portion 122, and a threaded hole matched with the connection screw is opened at one end of the second spacer portion 124 close to the first spacer portion 122, so as to adjust the distance between the first spacer portion 122 and the second spacer portion 124. It should be noted that, in other embodiments, the connection screw may also be a structure of the first spacing portion 122 itself, that is, integrally formed with the first spacing portion 122, and when the distance between the first spacing portion 122 and the second spacing portion 124 is adjustable along the first direction, it should be understood that the distance between the portion of the first spacing portion 122 that is not screwed into the threaded hole and the second spacing portion 124 is adjustable.
In some embodiments, the first end and the second end of the spacer body 12 are both formed with a recess, the first fastening member 142 and the third fastening member are disposed at the first end and the second end to form a first fastening space and a second fastening space with the recesses at the two ends, and one end of the first connecting element 16 and one end of the second connecting element 19 are respectively located in the first fastening space and the second fastening space.
In some embodiments, the first end and the second end of the spacer body 12 are each provided with a positioning portion for connecting the first fastening assembly 14 or the second fastening assembly 18. Specifically, the positioning part is located at an end of the first end or the second end, and laterally protrudes from the partition main body 12.
In some embodiments, the first connecting assembly 16 includes a connecting member 162 and a fixing mechanism 164, wherein one end of the connecting member 162 is rotatably connected to the first end of the spacing body 12 and located in the first fastening space, and the fixing mechanism 164 is detachably connected to one end of the connecting member 162 away from the spacing body 12 for connecting to the ground electrode.
Referring to fig. 3, further, the connecting member 162 includes a first connecting portion 1622 and a second connecting portion 1624, wherein the first connecting portion 1622 is rotatably connected to the first end of the partition body 12 and located in the first fastening space. The second connecting portion 1624 has one end fixedly connected to the first connecting portion 1622 and the other end extending out of the first fastening space and threadedly connected to the fixing mechanism 164. Specifically, the first connection portion 1622 is a ball head, and the corresponding recess is a spherical recess, so that the first connection portion 1622 can rotate in any direction in the first fastening space.
It will be appreciated that the first coupling portion 1622 pivotally connects the spacer body 12 in a configuration similar to a ball-head connection, except that the ball-head connection is typically only two pieces, one piece being the ball head which is permanently captured in a space formed by the other piece itself, and the ball head in the spacer is captured in a first secured space formed by the first fastening assembly 14 and the spacer body 12.
In practical application, a groove communicated with the pit is formed in the first end of the partition main body 12, an opening is formed in the groove corresponding to the first fastening assembly 14, the second connecting portion 1624 can penetrate the groove in the rotating process of the second connecting portion 1624 along with the first connecting portion 1622, and the longitudinal direction of the second connecting portion 1624 is perpendicular to the first direction. Specifically, the second connection portion 1624 is substantially cylindrical and is integrally formed with the spherical first connection portion 1622.
Referring to fig. 4, in some embodiments, the fixing mechanism 164 includes a first fixing member 1642 and a second fixing member 1644, one end of the connecting member 162 away from the partition body 12 is detachably connected to the first fixing member 1642, one end of the first fixing member 1642 is pivotally connected to one end of the second fixing member 1644, and the other end of the first fixing member 1642 and the other end of the second fixing member 1644 can contact to form a closed structure surrounded by the second fixing member 1644, and the ground electrode is disposed in the closed structure during connection.
Further, the first fixing member 1642 has a first fixing state, and when the first fixing member 1642 is in the first fixing state, the first fixing member 1642 and the second fixing member 1644 are surrounded to form the above-mentioned closed structure. Specifically, the first fixing member 1642 and the second fixing member 1644 are both semi-annular structures, when the first fixing member 1642 is in the first fixing state, the first fixing member 1642 and the second fixing member 1644 are surrounded to form a first fixing ring, and the ground electrode is fixed to the first fixing ring.
Of course, the first fixing member 1642 and the second fixing member 1644 may have other structures, and the enclosing structure formed by the corresponding enclosure may have other shapes, such as a polygonal frame structure. Since the grounding grid, the underground pipeline and the communication cable are generally circular in cross-sectional shape, the first fixing member 1642 and the second fixing member 1644 are also disposed in a semi-circular shape.
Specifically, a threaded hole is formed in the middle position of the first fixing member 1642 in a semi-ring shape, and one end, far away from the first connecting portion 1622, of the second connecting portion 1624 is in threaded connection with the threaded hole. To enable the connector 162 to be removably connected with the first holder 1642.
In some embodiments, the fixing mechanism 164 further comprises a locking member 1646, wherein the locking member 1646 is connected to the first fixing member 1642 and detachably connected to the second fixing member 1644 for keeping the first fixing member 1642 in the first fixing state.
Further, the locking member 1646 includes a locking rotation shaft 1647, a locking bolt 1648 and a locking nut 1649, the locking rotation shaft 1647 is connected to the other end of the first fixing member 1642, i.e. the end not pivotally connected to the second fixing member 1644, the locking bolt 1648 is fixedly connected to the locking bolt 1648 and is rotatable around the locking bolt 1648, and the locking nut 1649 is threadedly connected to the locking bolt 1648. The other end (with the last) of second mounting 1644 is equipped with joint portion, is in first fixed state when first mounting 1642, and locking bolt 1648 is rotatable to joint portion, then screws up locking nut 1649 to make locking nut 1649 and joint portion joint, thereby realize locking bolt 1648's fixed, and then keep first mounting 1642 at first fixed state.
Specifically, the locking nut 1649 is a butterfly nut, the first fixing member 1642 and the second fixing member 1644 have similar structures, and the other end of the first fixing member 1642 is also provided with a structure similar to the clamping portion of the second fixing member 1644 and is two opposite rectangular bumps, the two rectangular bumps are oppositely arranged along the axial direction of the first fixing ring, the locking rotating shaft 1647 is connected between the two rectangular bumps of the first fixing member 1642, when the first fixing member 1642 is in a first fixing state, the two rectangular bumps on the first fixing member 1642 are close to the two rectangular bumps on the second fixing member 1644, the locking bolt 1648 can be rotated between the two rectangular bumps of the second fixing member 1644, and then the locking bolt 1648 is screwed tightly, and one side of the two rectangular bumps, which are clamped on the second fixing member 1644, is far away from the two rectangular bumps of the first fixing member 1642.
Thus, as the lock nut 1649 is screwed on the lock bolt 1648, the lock bolt 1648 rotates around the lock rotation shaft 1647, and the lock rotation shaft 1647 is disposed in the two rectangular protrusions of the first fixing member 1642, that is, the lock nut 1649 rotates around the two rectangular protrusions of the first fixing member 1642, when the lock nut 1649 is fastened to one side of the rectangular protrusion of the second fixing member 1644 away from the rectangular protrusion of the first fixing member 1642, the rotation radius of the lock nut 1649 is the distance from the side of the rectangular protrusion of the second fixing member 1644 away from the rectangular protrusion of the first fixing member 1642 to the rotation shaft, and the protrusion on the second fixing member 1644 is a rectangular protrusion, so that the distance from a pair of corners of the rectangular protrusion to the rotation shaft is greater than the rotation radius to limit the rotation of the lock bolt 1648, thereby the first fixing member 1642 is maintained in the first fixed state.
Referring to fig. 5, in some embodiments, the first fastening assembly 14 further includes an adjusting member 144, the adjusting member is disposed on the positioning portion, and the adjusting member 144 is connected to the second fastening member for adjusting the second fastening member, so that the second fastening member fastens or releases the end of the first connecting assembly 16 disposed at the first end.
Further, the second fastening member is located in the first fastening space and is movable relative to the first connecting element 16, and the second fastening member has a fastening position during the movement of the second fastening member, and when the second fastening member is located in the fastening position, the second fastening member fastens the end of the first connecting element 16 disposed at the first end. The adjustment member 144 is adapted to allow the second fastener to be movable relative to the first coupling assembly 16.
In some embodiments, the first fastening member 142 is an outer sleeve that is sleeved on the first end of the spacer body 12 for forming a first fastening space with the recess of the first end. It will be appreciated that since the outer sleeve is such that the first connection 1622 is inseparable from the spacer body 12, it is not possible to install the first connection 1622 after installation of the outer sleeve, and therefore the first connection 1622 is placed in the recess and the outer sleeve is passed over the second connection 1624 and over the first end.
Further, the second fastening member is an inner sleeve, which is also sleeved on the first end of the spacer body 12 and is located in the outer sleeve, and thus is also located in the first fastening space. The inner sleeve and the outer sleeve are manufactured and installed after molding. Although the dimples and the outer sleeve form the first fastening space, the outer sleeve and the first spacing portion 122 are not limited to the first fastening space at other positions, and the inner sleeve is disposed between the first spacing portion 122 and the outer sleeve, that is, within the outer sleeve, or may be located in the first fastening space. Of course, a certain force is required to abut against the first connection portion 1622 to fix the first connection portion 1622, and it is not necessarily possible to fix the first connection portion 1622.
In addition, the inner sleeve mainly functions to abut against the second connecting portion 1624 through adjustment so as to limit the rotation of the second connecting portion 1624, and the inner sleeve is generally cylindrical, so that the movement in the first fastening space means that the inner sleeve can be changed by adjusting the radius of the inner sleeve, that is, the inner sleeve can be expanded and contracted, and the first connecting portion 1622 can be clamped when the inner sleeve is contracted. Of course, in other embodiments, the first end of the first partition portion 122 may also be provided with a retaining structure, the retaining structure is connected to the inner sleeve, the expansion and contraction of the inner sleeve may drive the retaining structure, and the contraction of the inner sleeve may drive the retaining structure to abut against the second connecting portion 1624, so as to fix the second connecting portion 1624.
In some embodiments, the adjusting element 144 includes a fixing portion, an adjusting portion 1442 and a handheld portion 1444, the fixing portion is disposed in the positioning portion, the adjusting portion 1442 is disposed in the fixing portion and connected to the positioning portion and the inner sleeve respectively, the adjusting portion 1442 can rotate on the positioning portion for adjusting the expansion and contraction of the inner sleeve, and the handheld portion 1444 is connected to the adjusting portion 1442 for facilitating the adjustment of the adjusting portion 1442.
Further, the inner sleeve can be regarded as a flexible elastic sheet with one end fixedly connected to the fixing portion and the other end extending around the first spacing portion 122 and fixedly connected to the adjusting portion 1442, and the flexible metal sheet can be rolled on the adjusting portion 1442 by rotating the adjusting portion 1442, so that the flexible elastic sheet around the first spacing portion 122 is tensioned, and the inner sleeve is tightened.
It should be noted that the first fastening assembly 14 is mainly used to rotatably connect and limit the first connecting portion 1622 at the first end of the first spacing portion 122, so that other alternatives are also possible, for example, an outer sleeve may not be provided, the first fastening space may be directly provided in the first spacing portion 122 in a manner similar to a ball joint connection, and the first fastening space of the first spacing portion 122 that limits the first connecting portion 1622 is manufactured.
In some embodiments, the spacer further includes a first retainer disposed through the first fastener 142 and detachably coupled to the spacer body 12 for securing the first fastening assembly 14 to the first end of the spacer body 12. Specifically, the positioning element is a positioning bolt, and a threaded hole is formed in a first end of the spacer body 12. Similarly, the spacer also includes a second locating member for securing the third fastening assembly to the second end of the spacer body 12.
In some embodiments, the first fastening assembly 14 is identical in construction to the second fastening assembly 18, and the first connecting assembly 16 is identical in construction to the second connecting assembly 19. In this way, both ends of the spacing body 12 can be connected to grounding electrodes or other members to be spaced in multiple directions.
Meanwhile, since the first fastening element 14 and the second fastening element 18 and the first connecting element 16 and the second connecting element 19 have the same function, the structure and function are the same, and thus, the description is omitted.
Meanwhile, the above-mentioned spacer is used for spacing the grounding electrode from the grounding electrode, the grounding electrode from the underground pipeline or the grounding electrode from the communication cable, so that the whole spacer is supported by an insulating material, and in order to reduce the manufacturing cost, the spacer can be made of non-metal materials such as epoxy resin, nylon and polytetrafluoroethylene.
A grounding grid system comprises a grounding grid and a spacing device used for the grounding grid in the embodiment, wherein the grounding grid comprises a plurality of grounding electrodes, and the spacing device is connected between the grounding electrodes and a member to be spaced.
Compared with the prior art, the spacing device for the grounding grid and the grounding grid system provided by the invention at least have the following advantages:
1) the two grounding electrodes are effectively separated and firmly connected, so that the overall current dispersion effect of the grounding grid is ensured;
2) the spacing between the grounding electrodes in two arbitrary directions and the members to be spaced can be carried out, and the spacing main body has adjustable length, high flexibility and strong universality;
3) simple structure, easy assembly and disassembly, simple operation and low manufacturing cost.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A spacer for a ground grid, comprising:
a spacer body having opposing first and second ends;
one end of the first connecting component is rotatably connected to the first end of the spacing main body, and the other end of the first connecting component is used for connecting a grounding electrode;
a first fastening assembly including a first fastening member disposed at the first end of the spacer body for inseparably coupling an end of the first connection assembly to the spacer body relative to the spacer body, and a second fastening member disposed between the first fastening member and the spacer body and configured to operatively fasten or release the first connection assembly, thereby fixing or rotating the first connection assembly relative to the first end;
one end of the second connecting component is rotatably connected to the second end of the spacing main body, and the other end of the second connecting component is used for connecting a member to be spaced;
a second fastening assembly including a third fastener disposed at the second end of the spacer body for inseparably coupling an end of the second connection assembly to the spacer body relative to the spacer body, and a fourth fastener disposed between the third fastener and the spacer body and configured to operatively fasten or release the second connection assembly, thereby fixing or rotating the second connection assembly relative to the second end;
the first end is provided with a pit and a groove communicated with the pit, when the first fastener is arranged at the first end, the first fastener and the pit form a first fastening space, and one end of the first connecting component is positioned in the first fastening space;
the first fastening assembly is provided with an opening corresponding to the groove, and the first connecting assembly can be arranged in the groove in a penetrating mode in the rotating process.
2. A spacing device for a grounding grid according to claim 1, wherein the first connection assembly comprises a connector member having one end rotatably connected to said first end and a fixing means detachably connected to the end of said connector member remote from said spacing body for connection to a grounding electrode.
3. A spacing device for a grounding grid according to claim 2, wherein the connector comprises a first connector portion and a second connector portion, the first connector portion being rotatably connected to the first end of the spacing body;
one end of the second connecting part is fixedly connected with the first connecting part, and the other end of the second connecting part is in threaded connection with the fixing mechanism.
4. A spacing device for a grounding grid according to claim 2, wherein the fixing means comprises a first fixing member and a second fixing member, and one end of the connecting member remote from the spacing body is detachably connected to the first fixing member;
one end of the first fixing piece is pivotally connected with one end of the second fixing piece, the first fixing piece is in a first fixing state, when the first fixing piece is in the first fixing state, the first fixing piece and the second fixing piece are arranged in an enclosing mode to form a first fixing ring, and the grounding electrode is fixed in the first fixing ring.
5. A spacing device for a grounding grid according to claim 4, wherein said securing mechanism further comprises a retaining member connected to said first retaining member and detachably connected to said second retaining member for retaining said first retaining member in said first secured state.
6. The spacer for a grounding grid according to claim 1, wherein the spacer body further comprises a positioning portion disposed at the first end;
the first fastening assembly further comprises an adjusting piece, the adjusting piece is arranged on the positioning portion, connected with the second fastening piece and used for adjusting the second fastening piece so as to enable the second fastening piece to fasten or release the first connecting assembly.
7. The spacer for ground grid according to any one of claims 1 to 6, further comprising a first positioning member, wherein the first positioning member is disposed through the first fastening member and detachably connected to the first end of the spacer body, for fixing the first fastening member to the first end of the spacer body.
8. The spacing device for a grounding grid according to any one of claims 1 to 6, wherein the spacing body comprises a first spacing portion and a second spacing portion arranged in sequence along a first direction, and the first spacing portion is connected to the second spacing portion, and the distance between the first spacing portion and the second spacing portion is adjustable along the first direction;
the first fastening component is arranged at one end of the first spacing part, which is far away from the second spacing part, and the second fastening component is arranged at one end of the second spacing part, which is far away from the first spacing part.
9. A spacing device for a ground grid according to any of claims 1 to 6, wherein the first fastening assembly and the second fastening assembly are of the same construction; the first connecting component and the second connecting component have the same structure.
10. A grounding grid system comprising a grounding grid and the spacing device of any of claims 1 to 9 for grounding grid, said grounding grid comprising a plurality of grounding electrodes, said spacing device being connected between said grounding electrodes and the members to be spaced.
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| CN201910233349.2A CN109962349B (en) | 2019-03-26 | 2019-03-26 | A spacer and grounding grid system for grounding grid |
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| CN201910233349.2A CN109962349B (en) | 2019-03-26 | 2019-03-26 | A spacer and grounding grid system for grounding grid |
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| CN109962349A CN109962349A (en) | 2019-07-02 |
| CN109962349B true CN109962349B (en) | 2020-11-27 |
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| CN201910233349.2A Active CN109962349B (en) | 2019-03-26 | 2019-03-26 | A spacer and grounding grid system for grounding grid |
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| CN111673640A (en) * | 2020-06-17 | 2020-09-18 | 中国原子能科学研究院 | Supporting device |
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| US3978276A (en) * | 1975-05-02 | 1976-08-31 | Preformed Line Products Company | Spacer-damper |
| JPH10322866A (en) * | 1997-05-22 | 1998-12-04 | Furukawa Electric Co Ltd:The | Loose spacer |
| CN105655954A (en) * | 2014-11-26 | 2016-06-08 | 国家电网公司 | Telescopic spacer |
| CN106887816A (en) * | 2017-03-23 | 2017-06-23 | 国网山东省电力公司威海供电公司 | A kind of insulated cable support |
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| CN206758672U (en) * | 2017-04-26 | 2017-12-15 | 国网福建永春县供电有限公司 | One kind ground wire fixture |
| CN206850042U (en) * | 2017-07-03 | 2018-01-05 | 国网山东省电力公司诸城市供电公司 | Can multi-faceted installing ground wire |
| CN109301521A (en) * | 2018-09-21 | 2019-02-01 | 国网山东省电力公司检修公司 | A kind of more adaptive type mortise and tenon type escapements of tower grounding net |
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|---|---|---|---|---|
| US3978276A (en) * | 1975-05-02 | 1976-08-31 | Preformed Line Products Company | Spacer-damper |
| JPH10322866A (en) * | 1997-05-22 | 1998-12-04 | Furukawa Electric Co Ltd:The | Loose spacer |
| CN105655954A (en) * | 2014-11-26 | 2016-06-08 | 国家电网公司 | Telescopic spacer |
| CN206293634U (en) * | 2016-12-13 | 2017-06-30 | 深圳供电局有限公司 | A kind of overhead power transmission line pole tower combined type grounded screen |
| CN106887816A (en) * | 2017-03-23 | 2017-06-23 | 国网山东省电力公司威海供电公司 | A kind of insulated cable support |
| CN206758672U (en) * | 2017-04-26 | 2017-12-15 | 国网福建永春县供电有限公司 | One kind ground wire fixture |
| CN206850042U (en) * | 2017-07-03 | 2018-01-05 | 国网山东省电力公司诸城市供电公司 | Can multi-faceted installing ground wire |
| CN109301521A (en) * | 2018-09-21 | 2019-02-01 | 国网山东省电力公司检修公司 | A kind of more adaptive type mortise and tenon type escapements of tower grounding net |
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|---|---|
| CN109962349A (en) | 2019-07-02 |
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