CN216215758U - Clamp for micro-adjustment of conductor sag of overhead transmission line - Google Patents
Clamp for micro-adjustment of conductor sag of overhead transmission line Download PDFInfo
- Publication number
- CN216215758U CN216215758U CN202122383795.7U CN202122383795U CN216215758U CN 216215758 U CN216215758 U CN 216215758U CN 202122383795 U CN202122383795 U CN 202122383795U CN 216215758 U CN216215758 U CN 216215758U
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- clamping plate
- fixing device
- transmission line
- clamp
- upper clamping
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- 239000004020 conductor Substances 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 7
- 239000000956 alloy Substances 0.000 claims abstract description 7
- 230000009194 climbing Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The utility model discloses a clamp for micro-adjustment of conductor sag of an overhead transmission line, which comprises a lower clamp plate and an upper clamp plate; a plurality of cable grooves which are in one-to-one correspondence are formed in the opposite surfaces between the lower clamping plate and the upper clamping plate, and the cable grooves are of arc-shaped structures; spring jacking mechanisms are symmetrically arranged on two sides of the upper surface of the upper clamping plate, and the middle of the upper surface of the upper clamping plate is connected with the sleeve. The upper clamping plate, the lower clamping plate and the fixing device of the clamp are made of aluminum alloy materials, so that the clamp is light and durable and is convenient for high-altitude operation; the clamping plates are connected and fixed through bolts, so that the clamping plates are convenient to disassemble and assemble, and are economical and practical; the cable groove is adjustable up and down and can be suitable for cables with different wire diameters; the rubber pad is laid on the surface of the clamping plate, so that the wire can be well protected.
Description
Technical Field
The utility model relates to the technical field of power transmission line clamps, in particular to a clamp for micro-adjustment of sag of a lead of an overhead power transmission line.
Background
The overhead line comprises a lead, an overhead ground wire, an insulator string, a tower, a grounding device and the like. The wire, which functions to conduct current, must have a sufficient cross-section to maintain a reasonable current density. The wires are all at a high potential. In order to reduce the power loss and electromagnetic interference caused by corona discharge, the wire should also have a large radius of curvature. Due to large transmission capacity and high working voltage, the ultrahigh voltage transmission line mostly adopts split conductors (i.e. a plurality of conductors form a phase conductor, and 2-split, 3-split or 4-split conductors are used most). Take four-bundle conductor tight line sag fine-tuning anchor clamps as an example, the tight line sag fine-tuning anchor clamps of current four-bundle conductor are heavier and not durable, are unfavorable for high altitude construction, and the cable recess of current anchor clamps is not adjustable moreover, can not be applicable to the cable of different line footpaths, consequently, need provide effectual scheme and solve above problem.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a conductor sag fine-tuning clamp for an overhead transmission line, which is used for solving the technical problem in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a clamp for micro-adjustment of conductor sag of an overhead transmission line, which comprises a lower clamp plate and an upper clamp plate; a plurality of cable grooves which correspond to each other one by one are formed in the opposite surfaces between the lower clamping plate and the upper clamping plate, and the cable grooves are of arc-shaped structures; spring jacking mechanisms are symmetrically arranged on two sides of the upper surface of the upper clamping plate, and the middle of the upper surface of the upper clamping plate is connected with the sleeve.
Furthermore, a fixing device is arranged above the upper clamping plate, the fixing device semi-surrounds the upper clamping plate, three grooves are formed in the lower surface of the fixing device, one end of the spring jacking mechanism is installed in the grooves in the two sides of the fixing device, and the other end of the spring jacking mechanism is connected with the upper clamping plate; one end of the sleeve is connected with the upper clamping plate, and the other end of the sleeve is arranged in a groove in the middle of the fixing device; the sleeve is internally provided with an internal thread, the sleeve is internally provided with a bolt matched with the internal thread, and the bolt penetrates through the fixing device and is connected with the control knob.
Further, fixing bolts are symmetrically arranged on two sides of the fixing device and penetrate through the fixing device to extend to and be connected with two sides of the lower clamping plate.
Furthermore, the fixing bolt is provided with two nuts on the upper surface of the fixing device respectively.
Furthermore, a power cable is placed in the cable groove, and the diameter of the cable groove is larger than or equal to the diameter of the power cable.
Further, the number of the cable slots is greater than or equal to the number of the power cables.
Furthermore, rubber pads are arranged on the opposite surfaces between the lower clamping plate and the upper clamping plate and in the cable groove.
Further, the upper clamping plate, the lower clamping plate and the fixing device are all made of aluminum alloy materials.
The utility model has the beneficial effects that:
1. the clamp and the fixing bolt are made of aluminum alloy materials, so that the clamp is light and durable and is convenient for high-altitude operation.
2. The clamping plates are fixed through the bolt connection, so that the clamping plates are convenient to disassemble and assemble, and are economical and practical.
3. The cable groove is adjustable from top to bottom and can be suitable for cables with different wire diameters.
4. The rubber pad is laid on the surface of the clamping plate, so that the wire can be well protected.
Drawings
Fig. 1 is a schematic structural diagram of a conductor sag fine-tuning clamp for an overhead transmission line according to an embodiment of the present invention;
FIG. 2 is an enlarged view at A provided by an embodiment of the present invention;
in the figure: 1. a lower splint; 2. an upper splint; 3. a fixing device; 4. a control knob; 5. fixing the bolt; 6. a spring jacking mechanism; 7. a cable trough; 8. a power cable; 9. a rubber pad; 10. a sleeve; 11. and a nut.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 1-2, a clamp for fine adjustment of conductor sag of an overhead transmission line comprises a lower clamp plate 1 and an upper clamp plate 2; a plurality of cable grooves 7 which correspond one to one are formed in the opposite surfaces between the lower clamping plate 1 and the upper clamping plate 2, and the cable grooves 7 are of circular arc structures; spring jacking mechanisms 6 are symmetrically arranged on two sides of the upper surface of the upper clamping plate 2, and the middle of the upper surface of the upper clamping plate 2 is connected with the sleeve 10.
In the specific implementation, firstly, a clamp for trimming the conductor sag is manufactured, and an upper clamping plate 2 and a lower clamping plate 1 which are shaped as shown in figure 1 are processed by an aluminum alloy material according to the required size by utilizing a punching machine; a plurality of cable grooves 7 are formed in the opposite surfaces between the upper clamping plate 2 and the lower clamping plate 1, the cable grooves 7 are of circular arc structures, power cables 8 are placed in the cable grooves 7, and the diameter of each cable groove 7 is larger than or equal to that of each power cable 8, so that the power cables 8 can be smoothly placed in the cable grooves 7; the number of the cable grooves 7 is larger than or equal to the number of the power cables 8, at least 4 cable grooves 7 are provided, and at least all the power cables 8 can be laid down; rubber pads 9 are arranged on the opposite surfaces between the lower clamping plate 1 and the upper clamping plate 2 and in the cable groove 7. Rubber pads 9 are laid on the surfaces of the cable grooves 7 of the two clamping plates, and the rubber pads 9 are attached to the surfaces of the clamping plates and cover the cable grooves 7.
A fixing device 3 is arranged above the upper clamping plate 2, the fixing device 3 surrounds the upper clamping plate 2 in half, three grooves are formed in the lower surface of the fixing device 3, one end of a spring jacking mechanism 6 is installed in the grooves in the two sides of the fixing device 3, and the other end of the spring jacking mechanism is connected with the upper clamping plate 2; one end of the sleeve 10 is connected with the upper clamping plate 2, and the other end is arranged in a groove in the middle of the fixing device 3; an internal thread is arranged in the sleeve 10, a bolt matched with the internal thread is arranged in the sleeve 10, and the bolt penetrates through the fixing device 3 and is connected with the control knob 4; the inside in cable groove 7 is provided with flexible link gear, and flexible link gear includes control knob 4 and spring climbing mechanism 6, and 2 surface mounting on the punch holder have control knob 4, and 1 set of spring climbing mechanism 6 is respectively installed to the inside left and right sides of splint, and control knob 4 drives 2 up-and-down motion of punch holder through the bolt screw transmission, and the jacking effect through both sides regulating spring carries out quick centre gripping to electric power cable 8 simultaneously and fixes.
Fixing bolts 5 are symmetrically arranged on two sides of the fixing device 3, and the fixing bolts 5 penetrate through the fixing device 3 and extend to two sides of the lower clamping plate 1 to be connected. The upper clamping plate and the lower clamping plate are fixed through the fixing device 3, the fixing bolt 5 is a stainless steel outer hexagonal wall penetrating bolt, and the fixing bolt 5 is provided with two nuts 11 on the upper surface of the fixing device 3 respectively and can be directly fixed through a wrench.
The method comprises the following specific operation steps: 1. the power cable 8 is clamped and fixed by driving the clamping and fixing plates through the rotary control knob 4; 2. the upper clamping plate and the lower clamping plate are fixed through a stainless steel long screw type fixing bolt 5; 3. before clamping the power cable 8, rubber pads 9 are paved on the surfaces of the upper clamping plate and the lower clamping plate to protect the power cable 8.
It should be noted that the upper splint 2, the lower splint 1 and the fixing device 3 are all made of aluminum alloy material. The aluminum alloy material is adopted, so that the device is light and durable and is convenient for high-altitude operation; the clamping plates are connected and fixed through bolts, so that the clamping plates are convenient to disassemble and assemble, and are economical and practical; the cable groove is adjustable up and down and can be suitable for cables with different wire diameters; the rubber pad is laid on the surface of the clamping plate, so that the wire can be well protected.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. The utility model provides an overhead transmission line wire arc hangs down fine-tuning anchor clamps which characterized in that: comprises a lower splint and an upper splint; a plurality of cable grooves which correspond to each other one by one are formed in the opposite surfaces between the lower clamping plate and the upper clamping plate, and the cable grooves are of arc-shaped structures; spring jacking mechanisms are symmetrically arranged on two sides of the upper surface of the upper clamping plate, and the middle of the upper surface of the upper clamping plate is connected with the sleeve.
2. The overhead transmission line conductor sag fine-tuning clamp of claim 1, characterized in that:
a fixing device is arranged above the upper clamping plate, the fixing device semi-surrounds the upper clamping plate, three grooves are formed in the lower surface of the fixing device, one end of the spring jacking mechanism is installed in the grooves in the two sides of the fixing device, and the other end of the spring jacking mechanism is connected with the upper clamping plate; one end of the sleeve is connected with the upper clamping plate, and the other end of the sleeve is arranged in a groove in the middle of the fixing device; the sleeve is internally provided with an internal thread, the sleeve is internally provided with a bolt matched with the internal thread, and the bolt penetrates through the fixing device and is connected with the control knob.
3. The overhead transmission line conductor sag fine-tuning clamp of claim 2, characterized in that:
fixing bolts are symmetrically arranged on two sides of the fixing device and penetrate through the fixing device to extend to be connected with two sides of the lower clamping plate.
4. The overhead transmission line conductor sag fine-tuning clamp of claim 3, characterized in that:
the fixing bolt is provided with two nuts on the upper surface of the fixing device respectively.
5. The overhead transmission line conductor sag fine-tuning clamp of claim 1, characterized in that:
and a power cable is placed in the cable groove, and the diameter of the cable groove is larger than or equal to that of the power cable.
6. The overhead transmission line conductor sag fine-tuning clamp of claim 5, wherein:
the number of the cable slots is greater than or equal to the number of the power cables.
7. The overhead transmission line conductor sag fine-tuning clamp of claim 1, characterized in that:
rubber pads are arranged on the opposite surfaces between the lower clamping plate and the upper clamping plate and in the cable groove.
8. The overhead transmission line conductor sag fine-tuning clamp of claim 2, characterized in that:
the upper clamping plate, the lower clamping plate and the fixing device are all made of aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122383795.7U CN216215758U (en) | 2021-09-29 | 2021-09-29 | Clamp for micro-adjustment of conductor sag of overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122383795.7U CN216215758U (en) | 2021-09-29 | 2021-09-29 | Clamp for micro-adjustment of conductor sag of overhead transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216215758U true CN216215758U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122383795.7U Active CN216215758U (en) | 2021-09-29 | 2021-09-29 | Clamp for micro-adjustment of conductor sag of overhead transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216215758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121123891A (en) * | 2025-11-17 | 2025-12-12 | 国网吉林省电力有限公司通化供电公司 | A high-altitude cable clamping and installation structure to prevent cable detachment |
-
2021
- 2021-09-29 CN CN202122383795.7U patent/CN216215758U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121123891A (en) * | 2025-11-17 | 2025-12-12 | 国网吉林省电力有限公司通化供电公司 | A high-altitude cable clamping and installation structure to prevent cable detachment |
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