CN111181112A - Wedge-shaped wire clamp device for overhead transmission line - Google Patents
Wedge-shaped wire clamp device for overhead transmission line Download PDFInfo
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- CN111181112A CN111181112A CN202010183510.2A CN202010183510A CN111181112A CN 111181112 A CN111181112 A CN 111181112A CN 202010183510 A CN202010183510 A CN 202010183510A CN 111181112 A CN111181112 A CN 111181112A
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- hole
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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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
- H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
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Abstract
The invention discloses a wedge-shaped wire clamp device for an overhead transmission line, which comprises: a wire clamp body; the wedge is partially positioned in the wire clamp body and is in interference connection with the wire clamp body; the wedge is formed by splicing two wedge clamping plates provided with first clamping grooves, the two first clamping grooves are spliced to form a first wedge-shaped hole, and a plurality of groups of clamping groove plate assemblies, wherein any one group of clamping groove plate assemblies are positioned in the first wedge-shaped hole and are in interference connection with the first wedge-shaped hole; each group of clamping groove plate assemblies comprises two clamping groove plates provided with second clamping grooves; the two second clamping grooves are spliced to form a second wedge-shaped hole; the aperture size of the second wedge-shaped hole is matched with the outer diameter size of the wire to be clamped. The invention realizes the purposes of effectively fixing and installing wires with different outer diameters and selecting and adapting to proper lugs according to the inner diameter of the hanging hole of the field electric power connection hardware fitting hanging plate.
Description
Technical Field
The invention relates to the technical field of electric power fittings, in particular to a wedge-shaped wire clamp device for an overhead transmission line.
Background
With the continuous and stable development of social economy and the continuous improvement of the living standard of people, the development of power transmission lines, high-speed railways and highways is more and more rapid. Because the power transmission lines, the highways and the high-speed railways are distributed densely and parallel and crossed inevitably, the safety disposal scheme of the high-voltage power transmission lines crossing the highways, the highways and the important power transmission channel sections (three spans for short) is more and more emphasized. At present, wedge-shaped wire clamps are gradually adopted in power grid transmission lines as selected equipment in a safety disposal scheme of a three-span line.
The sizes of semicircular grooves of the existing wedge clamping plate structure are consistent, so that in practical application, if the outer diameters of wires needing to be fixed are not consistent, an annular gasket needs to be added on the outer layer of the wires when the wires are too thin, which causes inconvenience for construction, and when the gaskets are added, the wires cannot achieve good fixing effect if the gaskets are not enough, and the following wires have the probability of moving in through holes formed by two wedge clamping plates, so that the insulating layer is abraded, and further, the safe power supply is influenced; if the wire is too thick and larger than the through hole formed by the two wedge clamping plates, the two wedge clamping plates cannot be placed into the wedge after being fixed, and the installation work is affected. The existing wedge clamping plate fixing mode is limited by the structure, and in order to ensure that the part with small outer diameter of the front end can be sleeved in the front end of a wedge-shaped through hole (the inner diameter of the front end is gradually transited to the inner diameter of the rear end to be large), only the rear part is provided with a fixing hole and fixed by a screw nut (the front end is provided with the fixing hole, the fixing screw can lead the front end of the wedge clamping plate to be incapable of being sleeved in the front end of the wedge-shaped through hole, or the screw nut is directly contacted with the wedge-shaped through hole after being fixed, thus leading the gap between the front end of the wedge and the wedge-shaped through. The wedge clamp still has a problem at present, be exactly that the hangers mounted position in its left and right sides outside is fixed (welding installation), and hangers external diameter and the hanging mouth size of self are unanimous, like this, when two link plate hanging holes of the electric connection gold utensil of installation field usage are too little, will lead to unable through the hanging ear collude on the hanging mouth of the hanging ear in the left and right sides two outsides of wedge clamp (the hanging ear external diameter is greater than the hanging mouth external diameter, prevent that the link plate from droing), when two link plate hanging holes of the electric connection gold utensil of installation field usage are too big, will lead to the link plate again to drop from the hanging ear in the left and right sides two outsides of wedge clamp easily (say that the hanging hole internal diameter of link plate is greater than the external diameter of hanging ear), cause the influence to safe power.
Disclosure of Invention
The invention aims to provide a wedge-shaped wire clamp device for an overhead transmission line, which aims to realize the purposes of effectively fixing and installing wires with different outer diameters and selecting and adapting to a proper hanging lug according to the inner diameter of a hanging hole of a field electric power connection hardware fitting hanging plate.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
a wedge clamp device for overhead transmission lines, comprising: a wire clamp body; the wedge is partially positioned in the wire clamp body and is in interference connection with the wire clamp body; the wedge is formed by splicing two wedge clamping plates provided with first clamping grooves, the two first clamping grooves are spliced to form a first wedge-shaped hole, and a plurality of groups of clamping groove plate assemblies, wherein any one group of clamping groove plate assemblies are positioned in the first wedge-shaped hole and are in interference connection with the first wedge-shaped hole; each group of clamping groove plate assemblies comprises two clamping groove plates provided with second clamping grooves; the two second clamping grooves are spliced to form a second wedge-shaped hole; the aperture size of the second wedge-shaped hole is matched with the outer diameter size of the wire to be clamped.
Preferably, the first wedge-shaped hole and the second wedge-shaped hole are in a circular frustum hole shape.
Preferably, the wedge is rectangular in shape as a whole, and has an outer diameter gradually increasing from a first end to a second end thereof.
Preferably, the upper side surface and the lower side surface of each wedge clamping plate close to the end part of the second end are respectively provided with a fixing opening, and a fixing piece penetrates through the fixing openings to fixedly connect the two mutually covered wedge clamping plates to obtain the wedge.
Preferably, the method further comprises the following steps: two sets of baffle strips, each set of baffle strip includes two baffle strips, two in each set of baffle strip set up respectively on two corresponding upper and lower edges of first centre gripping groove, and two the extending direction of baffle strip is relative.
Preferably, the outer diameters of the clamping groove plates in the plurality of groups of clamping groove plate assemblies are the same, and the inner diameters of the clamping groove plates belonging to the same group are the same.
Preferably, a rectangular through hole which is matched with the wedge and is used for accommodating the wedge is formed in the wire clamp body; and two outer side surfaces of the wire clamp body are respectively provided with a hanging lug mounting seat.
Preferably, the method further comprises the following steps: each group of hangers comprises two hangers with the same structure, each hanger comprises two hanger bodies and a hanging opening for connecting the two hanger bodies; the screw rod is fixedly connected with one end face of one of the two hanger bodies; the hanging lug is correspondingly fixed inside the hanging lug mounting seat through the screw rod; the outer diameter of the hanging opening is matched with the hanging hole of the electric power fitting hanging plate to be connected, and the outer diameter of the hanging opening is smaller than the outer diameter of the hanging lug body connected with the hanging opening.
Preferably, the clamp further comprises a rectangular fixing plate, and a circular through hole for the lead to be clamped to pass through is formed in the middle of the rectangular fixing plate; the rectangular fixing plate is fixed on the first end face of the wedge and used for fixing the two wedge clamping plates located inside the wire clamp body.
Preferably, the method further comprises the following steps: and each arc-shaped baffle is correspondingly arranged on the first end face of the wedge clamping plate and used for limiting the clamping groove plate.
Compared with the prior art, the invention has the following advantages:
the invention relates to a wedge-shaped wire clamp device for an overhead transmission line, which comprises: a wire clamp body; the wedge is partially positioned in the wire clamp body and is in interference connection with the wire clamp body; the wedge is formed by splicing two wedge clamping plates provided with first clamping grooves, the two first clamping grooves are spliced to form a first wedge-shaped hole, and a plurality of groups of clamping groove plate assemblies, wherein any one group of clamping groove plate assemblies are positioned in the first wedge-shaped hole and are in interference connection with the first wedge-shaped hole; each group of clamping groove plate assemblies comprises two clamping groove plates provided with second clamping grooves; the two second clamping grooves are spliced to form a second wedge-shaped hole; the aperture size of the second wedge-shaped hole is matched with the outer diameter size of the wire to be clamped. In this way, it can be seen that,
the wire fixing device can select two adaptive clamping groove plates (semicircular groove plates) with the same inner diameter according to the outer diameter of a wire (power transmission wire) to be fixed, the two clamping groove plates are respectively inserted into the first clamping groove (first semicircular groove) on the inner sides of the two wedge clamping plates from back to front, then the wire is clamped between the two clamping groove plates of the two wedge clamping plates, the front end and the rear end of the two wedge clamping plates are fixed, the rear wire is firmly clamped between the two clamping groove plates, the wire fixing device is suitable for effectively fixing and installing wires with different outer diameters, the rear sides and the front sides of the two wedge clamping plates can be fixed at the same time, and a better stable effect is achieved.
In addition, an installer selects two hanging lugs with the same outer diameter of the hanging lug body and the same outer diameter of the hanging opening according to the inner diameter of the hanging hole of the on-site electric power connection hardware fitting hanging plate, the hanging hole of the electric power fitting hanging plate can be conveniently hung outside the hanging opening of the hanging lug through the hanging lug hook, a good stabilizing effect is achieved, and meanwhile, the hanging plate cannot fall off due to the fact that the hanging hole is too large. Based on the above, the invention has good application prospect.
Drawings
Fig. 1 is a schematic overall structure diagram of a wedge clamp device for an overhead transmission line according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a wedge plate of a wedge clamp device for an overhead transmission line according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a side surface of a wire clamp body of a wedge wire clamp device for an overhead transmission line according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a wedge clamp device for an overhead transmission line applied to a "three-span" transmission line according to an embodiment of the present invention.
Detailed Description
The following describes a wedge clamp device for an overhead transmission line in further detail with reference to fig. 1 to 4 and a specific embodiment. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, it is to be understood that the terms "center," "height," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1 to 4, a wedge clamp device for an overhead transmission line includes: a wire clamp body 3; a wedge (not numbered in the figure) which is partially positioned in the wire clamp body 3 and is in interference connection with the wire clamp body 3; the wedge is formed by splicing two wedge clamping plates (a first wedge clamping plate 21 and a second wedge clamping plate 22) which are provided with first clamping grooves (not numbered in the figure), a first wedge-shaped hole (not shown in the figure) is formed by splicing the two first clamping grooves,
the clamping groove plate assemblies are arranged in the first wedge-shaped hole, and are in interference connection with the first wedge-shaped hole; each set of the clamping groove plate assemblies comprises two clamping groove plates 26 provided with second clamping grooves (not numbered in the figure); the two second clamping grooves are spliced to form a second wedge-shaped hole (not shown in the figure); the aperture size of the second wedge-shaped hole is matched with the outer diameter size of the wire 5 to be clamped.
Preferably, in this embodiment, the first wedge-shaped hole and the second wedge-shaped hole are in a circular frustum hole shape. The wedge is rectangular as a whole, and the outer diameter of the wedge gradually increases from the first end to the second end of the wedge.
And the upper side surface and the lower side surface of each wedge clamping plate (the first wedge clamping plate 21 or the second wedge clamping plate 22) close to the end part of the second end are respectively provided with a fixing open pore 23, and a fixing piece penetrates through the fixing open pore 23 to fixedly connect the two wedge clamping plates (the first wedge clamping plate 21 or the second wedge clamping plate 22) which are mutually covered, so that the wedge is obtained. In this embodiment, the fixing member is a screw 6.
Preferably, the wedge clamp device for overhead transmission lines further comprises: two sets of baffle strips, each set of baffle strip includes two baffle strips 24, two baffle strips 24 in each set of baffle strip set up respectively on corresponding two upper and lower edges of first centre gripping groove, and two the extending direction of baffle strip 24 is relative. For limiting the clamping groove plate 26.
Preferably, the outer diameter of each clamping groove plate 26 in the plurality of groups of clamping groove plate assemblies is the same, and the inner diameter of the clamping groove plates 26 belonging to the same group is the same.
Preferably, a rectangular through hole 31 which is matched with the wedge and is used for accommodating the wedge is formed in the wire clamp body 3; two outer side surfaces of the wire clamp body 3 are respectively provided with a hanging lug mounting seat 32. In this embodiment, the hanger mounting seat 32 may be a nut seat with an internal thread.
Preferably, the method further comprises the following steps: each group of hangers 1 comprises two hangers 1 with the same structure, each hanger 1 comprises two hanger bodies (not numbered in the figure) and a hanger port 101 connected with the two hanger bodies; the screw rod 102 is fixedly connected with one end face of one of the two hanger bodies; the hanging lug 1 is correspondingly fixed inside the hanging lug mounting seat 32 through the screw rod 102; the outer diameter of the hanging opening is matched with the hanging hole of the electric power fitting hanging plate to be connected, and the outer diameter of the hanging opening is smaller than the outer diameter of the hanging lug body connected with the hanging opening. In this embodiment, the screw 102 is screwed into the nut seat, and the outer thread of the screw 102 is matched with the inner thread of the nut seat to fix the hanger 1 to the hanger mounting seat 32.
Preferably, the clamp also comprises a rectangular fixing plate 4, wherein a circular through hole 41 for the lead 5 to be clamped to pass through is arranged in the middle of the rectangular fixing plate 4; the rectangular fixing plate 4 is fixed on a first end surface of the wedge and used for fixing two wedge clamping plates (a first wedge clamping plate 21 and a second wedge clamping plate 22) positioned inside the wire clamp body 3. Specifically, fixing holes 42 are respectively formed at four corners of the rectangular fixing plate 4, and screws 7 are inserted through the fixing holes 42 to fix the rectangular fixing plate 4 to the end surface of the first end of the wedge.
Preferably, the method further comprises the following steps: and each arc baffle plate 27 is correspondingly arranged on the first end surface of the wedge clamping plate (the first wedge clamping plate 21 and the second wedge clamping plate 22) and used for limiting the clamping groove plate 26.
Referring to fig. 1 to 4, when the wedge clamp device for overhead transmission lines is applied,
the outer diameter of the lead 5 fixed according to the requirement selects two adaptive semicircular groove plates (clamping groove plates) 26 with the same inner diameter, the two semicircular groove plates 26 are respectively inserted into the inner side semicircular grooves of the first wedge clamping plate 21 and the second wedge clamping plate 22 from back to front (the selection condition is that after the first wedge clamping plate 21 and the second wedge clamping plate 22 are combined together, the inner diameter of the two semicircular groove plates 26 which are combined together is slightly smaller than the outer diameter of the lead 5, the insulating layer of the lead 5 has plasticity, the insulating layer can be effectively fixed, the outer diameter of the first wedge clamping plate 21 and the outer diameter of the second wedge clamping plate 22 which are combined together can not be enlarged), then the transmission lead 5 is clamped between the two semicircular groove plates 26 on the inner side of the first wedge clamping plate 21 and the second wedge clamping plate 22 (second wedge hole), then the front end and the rear end of the first clamping plate 21 and the second wedge clamping plate 22 are fixed through the screw 6 and the rectangular fixing plate 4 (the rear end of the first clamping plate 21 and the second wedge clamping plate 22 And after the rear side end is fixed, the front side ends of the first wedge clamping plate 21 and the second wedge clamping plate 22 are basically contacted together to facilitate the fixation of the front side), and after the fixation is completed, the lead 5 is firmly clamped between the first wedge clamping plate 21 and the second wedge clamping plate 22, so that the lead 5 with different outer diameters is effectively and fixedly mounted, the rear sides and the front sides of the first wedge clamping plate 21 and the second wedge clamping plate 22 can be fixed at the same time, and a better stabilizing effect is achieved. The problem that in the prior art, if the wire 5 is too thin, the probability that the wire 5 moves in a first wedge-shaped hole formed by the first wedge clamping plate 21 and the second wedge clamping plate 22 is increased, so that the insulating layer of the wire 5 is abraded, and further the influence on safe power supply is caused is solved; if the wire 5 is too thick, and the outer diameter of the wire is larger than the inner diameter of the first wedge-shaped hole formed by the first wedge clamping plate 21 and the second wedge clamping plate 22, the wedge formed after the two wedge clamping plates 21 and 22 are fixed cannot be placed into the rectangular through hole 31 of the wire clamp body 1, and the installation work is affected. Before the wire 5 is installed in the embodiment, the wire 5 passes through the rectangular through hole 31 of the wedge wire clamp body 3, then the wire 5 is fixed, after the wire 5 is fixed, the first wedge clamping plate 21 and the second wedge clamping plate 22 are arranged in the rectangular through hole 31, the first ends of the first wedge clamping plate 21 and the second wedge clamping plate 22 are both located in the rectangular through hole 31, and the second ends of the first wedge clamping plate 21 and the second wedge clamping plate 22 are both exposed outside the rectangular through hole 31. Then, an installer selects two hangers 1 with the same hanger outer diameter (hanger body outer diameter) and the same hanger opening 101 outer diameter according to the inner diameter of the hanging hole 81 of the field electric power connection hardware fitting hanging plate 8, and then respectively and conveniently installs the two hangers 1 at the left end and the right end of the outer side of the wire clamp body 3, so that the hanging hole 81 of the electric power fitting hanging plate can be hung on the outer side of the hanger opening 101 (cylindrical) through the hangers 1, and good stability effect is achieved, and the hanging plate 8 can not fall off due to the fact that the hanging hole 81 is too large. In this embodiment, the principle of the suspension loop set is that the outer diameter of the suspension loop 1 (the outer diameter of the suspension loop body) is slightly smaller than the inner diameter of the suspension hole 81 of the suspension plate 8. The wire clamp body 3, the two wedge clamp plates and the two clamping groove plates 26 are in a split state, a plurality of clamping groove plates 26 have different inner diameters and can be conveniently installed and replaced through an inserting mode, the wire clamp is suitable for effectively and fixedly installing wires 5 with different outer diameters, the front ends (first ends) of the two wedge clamp plates are provided with the rectangular fixing plate 4 with the round opening 41 in the middle, the rear sides (the sides close to the second ends) and the front sides (the sides close to the first ends) of the two wedge clamp plates are fixed at the same time, a better stabilizing effect is achieved, the lugs 1 on the outer sides of the right two parts of the wedge clamp body 3 are fixedly connected with the wedge clamp body 3 through threads, the outer diameters of the lugs 1 and the outer diameters of the lugs 101 of the lugs 1 are different, the hanging holes 81 suitable for electric power fitting hanging plates with different sizes are hung on the outer sides of the lugs 101 of the lugs 1 through the lugs, and a good, meanwhile, the hanging plate 8 can not fall off due to the overlarge hanging hole.
Therefore, the embodiment mainly functions to fix the overhead aluminum conductor (conductor) 5 at the corner of the electric wire tower or on the insulator 9 of the tension-resistant rod of the corner through the hanging plate 8 by the power connection hardware fitting, so that the overhead aluminum conductor 5 is fixed or tensioned, and the safety of the three-span power transmission line (overhead power transmission line) is ensured.
In summary, the invention provides a wedge wire clamp device for an overhead transmission line, comprising: a wire clamp body; the wedge is partially positioned in the wire clamp body and is in interference connection with the wire clamp body; the wedge is formed by splicing two wedge clamping plates provided with first clamping grooves, the two first clamping grooves are spliced to form a first wedge-shaped hole, and a plurality of groups of clamping groove plate assemblies, wherein any one group of clamping groove plate assemblies are positioned in the first wedge-shaped hole and are in interference connection with the first wedge-shaped hole; each group of clamping groove plate assemblies comprises two clamping groove plates provided with second clamping grooves; the two second clamping grooves are spliced to form a second wedge-shaped hole; the aperture size of the second wedge-shaped hole is matched with the outer diameter size of the wire to be clamped. Therefore, the wire fixing device can select two adaptive clamping groove plates (semicircular groove plates) with the same inner diameter according to the outer diameter of a wire (power transmission wire) to be fixed, the two clamping groove plates are respectively inserted into the first clamping groove (first semicircular groove) on the inner sides of the two wedge clamping plates from back to front, then the wire is clamped between the two clamping groove plates of the two wedge clamping plates, the front end and the rear end of the two wedge clamping plates are fixed, the wire is firmly clamped between the two clamping groove plates, the wire fixing device is suitable for effectively fixing and installing wires with different outer diameters, the rear side and the front side of the two wedge clamping plates can be fixed at the same time, and a better stable effect is achieved.
In addition, an installer selects two hanging lugs with the same outer diameter of the hanging lug body and the same outer diameter of the hanging opening according to the inner diameter of the hanging hole of the on-site electric power connection hardware fitting hanging plate, the hanging hole of the electric power fitting hanging plate can be conveniently hung outside the hanging opening of the hanging lug through the hanging lug hook, a good stabilizing effect is achieved, and meanwhile, the hanging plate cannot fall off due to the fact that the hanging hole is too large. Based on the above, the invention has good application prospect.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. The utility model provides an overhead transmission line is with wedge fastener device which characterized in that includes:
the wire clamp comprises a wire clamp body,
the wedge is partially positioned in the wire clamp body and is in interference connection with the wire clamp body;
the wedge is formed by splicing two wedge clamping plates provided with first clamping grooves, the two first clamping grooves are spliced to form a first wedge-shaped hole,
the clamping groove plate assemblies are arranged in the first wedge-shaped hole, and are in interference connection with the first wedge-shaped hole;
each group of clamping groove plate assemblies comprises two clamping groove plates provided with second clamping grooves; the two second clamping grooves are spliced to form a second wedge-shaped hole;
the aperture size of the second wedge-shaped hole is matched with the outer diameter size of the wire to be clamped.
2. The wedge clamp apparatus for overhead transmission lines of claim 1, wherein said first wedge hole and said second wedge hole are in the shape of circular frustum holes.
3. The wedge clamp apparatus for overhead transmission lines of claim 2, wherein the wedge is generally rectangular and has an outer diameter that increases from a first end to a second end thereof.
4. The wedge clamp apparatus for overhead transmission line as claimed in claim 3, wherein each of said wedge clamping plates has a fixing opening formed on both upper and lower side surfaces thereof near the second end portion, and the wedge is obtained by fixedly connecting two wedge clamping plates covered with each other through said fixing openings by means of fixing members.
5. The wedge clamp apparatus for overhead transmission lines of claim 4, further comprising: two sets of baffle strips, each set of baffle strip includes two baffle strips, two in each set of baffle strip set up respectively on two corresponding upper and lower edges of first centre gripping groove, and two the extending direction of baffle strip is relative.
6. The wedge clamp apparatus for overhead transmission lines of claim 5, wherein each of said plurality of clamping groove plates in said plurality of clamping groove plate assemblies has the same outer diameter, and said clamping groove plates belonging to the same group have the same inner diameter.
7. The wedge-shaped wire clamp device for overhead transmission lines according to claim 6, wherein a rectangular through hole is formed in the wire clamp body, the rectangular through hole is matched with the wedge and is used for accommodating the wedge;
and two outer side surfaces of the wire clamp body are respectively provided with a hanging lug mounting seat.
8. The wedge clamp apparatus for overhead transmission lines of claim 7, further comprising: each group of hangers comprises two hangers with the same structure, each hanger comprises two hanger bodies and a hanging opening for connecting the two hanger bodies; the screw rod is fixedly connected with one end face of one of the two hanger bodies; the hanging lug is correspondingly fixed inside the hanging lug mounting seat through the screw rod; the outer diameter of the hanging opening is matched with the hanging hole of the electric power fitting hanging plate to be connected, and the outer diameter of the hanging opening is smaller than the outer diameter of the hanging lug body connected with the hanging opening.
9. The wedge clamp apparatus for overhead transmission lines as claimed in claim 8, further comprising a rectangular fixing plate having a circular through hole for passing the wire to be clamped therethrough; the rectangular fixing plate is fixed on the first end face of the wedge and used for fixing the two wedge clamping plates located inside the wire clamp body.
10. The wedge clamp apparatus for overhead transmission lines of claim 9, further comprising: and each arc-shaped baffle is correspondingly arranged on the first end face of the wedge clamping plate and used for limiting the clamping groove plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010183510.2A CN111181112B (en) | 2020-03-16 | 2020-03-16 | Wedge-shaped wire clamp device for overhead transmission line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010183510.2A CN111181112B (en) | 2020-03-16 | 2020-03-16 | Wedge-shaped wire clamp device for overhead transmission line |
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| CN111181112A true CN111181112A (en) | 2020-05-19 |
| CN111181112B CN111181112B (en) | 2021-06-22 |
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| CN109510146A (en) * | 2018-11-29 | 2019-03-22 | 北京帕尔普线路器材有限公司 | A kind of wedge strain resistance cable clamp |
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|---|---|---|---|---|
| US4872626A (en) * | 1986-11-06 | 1989-10-10 | Malico S.A. | Insulated anchoring clamp for insulated electric conductor equipped with a carrying cable |
| FR2647878B1 (en) * | 1989-05-31 | 1995-03-31 | Capelles De La Fuente Rosa | IMPROVED FASTENER FOR AIR CABLES, ESPECIALLY ELECTRIC |
| CN201341006Y (en) * | 2008-12-15 | 2009-11-04 | 红光电气有限公司 | Aluminum alloy wedge-shaped strain clamp |
| CN201490663U (en) * | 2009-08-28 | 2010-05-26 | 刘瑞旋 | Wedge-shaped variable diameter parallel groove wire clamp |
| CN204992484U (en) * | 2015-08-20 | 2016-01-20 | 福建中网电力科技有限公司 | General clamp structure of ann |
| CN108270187A (en) * | 2018-04-25 | 2018-07-10 | 河南新弘电力科技有限公司 | A kind of three across safety backup wedge clamps |
| CN109510146A (en) * | 2018-11-29 | 2019-03-22 | 北京帕尔普线路器材有限公司 | A kind of wedge strain resistance cable clamp |
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| CN111181112B (en) | 2021-06-22 |
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