CN210154718U - Overhead line presss from both sides detection structure - Google Patents
Overhead line presss from both sides detection structure Download PDFInfo
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- CN210154718U CN210154718U CN201920812126.7U CN201920812126U CN210154718U CN 210154718 U CN210154718 U CN 210154718U CN 201920812126 U CN201920812126 U CN 201920812126U CN 210154718 U CN210154718 U CN 210154718U
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- closed cavity
- fusible
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- overhead line
- temperature
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- 238000001514 detection method Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 19
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 230000008859 change Effects 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model discloses an overhead line clamp detection structure, which comprises a fourth nut arranged on a first bolt; the fourth nut comprises a screwing part provided with a fourth internal thread and a color changing part provided with a closed cavity, and the screwing part and the color changing part are isolated by a partition plate; the closed cavity is transparent, powder is coated on the inner side wall of the closed cavity, and the powder can change color after contacting with air; the side wall of the closed cavity is provided with a fusible window, the fusible window is filled with fusible metal alloy, and the closed cavity is filled with protective gas. The embodiment of the utility model provides a pair of overhead line presss from both sides and detects structure, when the temperature of fastener surpassed the regulation temperature of normal operating, the air got into through the fusible window and seals the cavity for the powder discolours. The inspection personnel need not to climb up the shaft tower, also can conveniently judge that the temperature of outlet clamp exists the condition that surpasses the regulation temperature when normal operating to in time overhaul, get rid of the potential safety hazard.
Description
Technical Field
The utility model belongs to the technical field of overhead line safety, especially, relate to an overhead line presss from both sides detection structure.
Background
The laying of high-voltage overhead lines often requires towers as supporting and transferring. On the shaft tower, be provided with the fastener of centre gripping high-tension line usually, fixed connection forms the relation of switching on between fastener and the high-tension line.
However, when the load is overloaded, the current is overloaded, so that the temperature of the wire clamp part is often higher than the specified temperature in normal operation, the power transmission efficiency is influenced, the oxidation speed of the wire clamp is accelerated, and further the potential safety hazard is buried.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an overhead line presss from both sides detects structure to whether the condition of the regulation temperature when exceeding normal operation appears in the detection fastener, so that in time overhaul, get rid of the potential safety hazard.
To achieve the purpose, the utility model adopts the following technical proposal:
an overhead line clamp detection structure comprises a fourth nut mounted on a first bolt;
the fourth nut comprises a screwing part provided with a fourth internal thread and a color changing part provided with a closed cavity, and the screwing part and the color changing part are isolated by a partition plate;
the closed cavity is transparent, powder is coated on the inner side wall of the closed cavity, and the powder can change color after contacting with air;
the side wall of the closed cavity is provided with a fusible window, the fusible window is filled with fusible metal alloy, and the closed cavity is filled with protective gas.
Optionally, the powder is a metal powder.
Optionally, the fusible metal alloy is a low melting point alloy.
Optionally, the protective gas is an inert gas.
Optionally, the metal powder is iron.
Compared with the prior art, the embodiment of the utility model provides a following beneficial effect has:
the embodiment of the utility model provides a pair of overhead line presss from both sides detects structure, when the temperature of fastener surpassed the regulation temperature of normal operating, make fusible metal alloy melt through the heat transfer, the air gets into the closed cavity through the fusible window for the powder discolours. The inspection personnel need not to climb up the shaft tower, also can conveniently judge that the temperature of outlet clamp exists the condition that surpasses the regulation temperature when normal operating to in time overhaul, get rid of the potential safety hazard.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural view of a wire clamp provided by an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a detection structure according to an embodiment.
Fig. 3 is a schematic structural diagram of a detection structure according to the second embodiment.
Fig. 4 is a schematic structural diagram of a detection structure provided in the third embodiment.
Fig. 5 is a schematic structural diagram of a detection structure according to the fourth embodiment.
Illustration of the drawings:
the clamping device comprises a first clamping head 1, a second clamping head 2, a first bolt 3, a first nut 4, a first gasket 5, a head 6 of the first bolt, a clamping space 7, a second nut 8, a temperature switch 9, a small driving mechanism 10, an identification rod 11, a third nut 12, a fixing piece 13, a spring 14, a fusible metal alloy 15, a fourth nut 16, a color changing part 17, a screwing part 18, a partition plate 19 and a closed cavity 20.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present embodiment provides a wire clamp for a high voltage overhead line, which includes a first clamping head 1 and a second clamping head 2, and a clamping space 7 is formed between the first clamping head 1 and the second clamping head 2 for clamping a high voltage wire. The first bolt 3 passes through the first chuck 1 and the second chuck 2, the first bolt 3 is sleeved with the first gasket 5 and the first nut 4, the first chuck 1 and the second chuck 2 are fixed by screwing the first nut 4, and then the high-voltage wire is fixed. Wherein the first bolt 3 is provided with a first external thread and correspondingly the first nut 4 is provided with a first internal thread.
In order to detect whether the clamp has experienced an over-temperature condition that is beyond normal operation, the present application provides the following embodiments.
Example one
Referring to fig. 2, the detecting structure provided in this embodiment includes a second nut 8, the second nut 8 is sleeved on the first bolt 3, and the second nut 8 is provided with a second internal thread. The side of the second nut 8 is provided with a temperature switch 9, the temperature switch 9 is electrically connected with a small driving mechanism 10, and the small driving mechanism 10 is in driving connection with an identification rod 11.
Specifically, when the temperature of the wire clamp exceeds the specified temperature during normal operation, the temperature sensed by the temperature switch 9 is higher than the action temperature of the temperature switch 9 through heat transfer, so that the small driving mechanism 10 is triggered to start, and the identification rod 11 is driven to act.
Specifically, when the small drive mechanism 10 is not activated, the marking rod 11 is retracted inside the small drive mechanism 10; when activated, the small drive mechanism 10 pushes the marker stem 11 out. Of course, the marking rod 11 may be in an extended state when not activated; when activated, the marker post 11 is in a retracted state.
The temperature switch 9 outputs a switching signal, and the small driving mechanism 10 can be a small motor and is powered by a battery. The small drive mechanism 10 only needs to drive the marking rod 11 in a linear motion.
Alternatively, the movement direction of the marking rod 11 is perpendicular to the length direction of the first bolt 3.
Optionally, the surface of the marking rod 11 is painted with a color, or the marking rod 11 with a color is adopted for easy observation.
The present embodiment provides a detection structure in which the marking rod 11 is changed from the contracted state to the extended state or from the extended state to the contracted state when the temperature of the wire clamp exceeds a prescribed temperature during normal operation. The inspection personnel need not to climb up the shaft tower, also can conveniently judge that the temperature of outlet clamp exists the condition that surpasses the regulation temperature when normal operating to in time overhaul, get rid of the potential safety hazard.
Example two
Referring to fig. 3, the detecting structure provided in this embodiment includes a third nut 12, the third nut 12 is sleeved on the first bolt 3, and the third nut 12 is provided with a third internal thread.
A spring 14 is arranged in the third nut 12, a fixing sheet 13 is connected to the inner side wall of the third nut 12, a marking rod 11 is connected to the first end of the fixing sheet 13, and the second end of the fixing sheet 13 is fixedly connected with one end of the spring 14. A fusible metal alloy 15 is arranged between the fixing piece 13 and the inner side wall of the third nut 12, and the fixing piece 13 and the inner side wall of the third nut 12 are fixedly connected through the fusible metal alloy 15.
Specifically, the third nut 12 is screwed onto the first bolt 3, and when the third nut is screwed, the spring 14 is in a compressed state, and always applies an upward elastic force to the fixing piece 13.
When the temperature of the wire clamp exceeds the specified temperature in normal operation, the fusible metal alloy 15 is melted through heat transfer, the fixing piece 13 is separated from the inner side wall of the third nut 12, and the marking rod 11 is ejected under the action of the spring 14.
Optionally, the surface of the marking rod 11 is painted with a color, or the marking rod 11 with a color is adopted for easy observation.
The fusible metal alloy 15 is a low melting point alloy, and a low melting point alloy with a proper melting point can be selected according to the requirement.
The detection structure provided by the embodiment ejects the marking rod 11 under the action of the spring 14 when the temperature of the wire clamp exceeds the specified temperature in normal operation. The inspection personnel need not to climb up the shaft tower, also can conveniently judge that the temperature of outlet clamp exists the condition that surpasses the regulation temperature when normal operating to in time overhaul, get rid of the potential safety hazard.
EXAMPLE III
Referring to fig. 4, the detecting structure provided in this embodiment includes a fourth nut 16, and the fourth nut 16 is sleeved on the first bolt 3.
The fourth nut 16 comprises a screwing portion 18 provided with a fourth internal thread and a color-changing portion 17 provided with a closed cavity 20.
The fastening portion 18 and the color changing portion 17 are separated by a partition plate 19.
The closed cavity 20 is transparent, powder is coated on the inner side wall of the closed cavity 20, and the powder can change color after contacting with air. In particular, the powder is a metal powder, such as iron.
Specifically, the side wall of the closed cavity 20 is provided with a fusible window, and the fusible window is filled with a fusible metal alloy 15. The fusible metal alloy 15 is a low melting point alloy, and a low melting point alloy with a proper melting point can be selected according to the requirement.
In the initial state, the enclosed cavity 20 is filled with a protective gas, such as nitrogen or other inert gas.
According to the detection structure provided by the embodiment, when the temperature of the wire clamp exceeds the specified temperature in normal operation, the fusible metal alloy 15 is melted through heat transfer, and air enters the closed cavity 20 through the fusible window, so that the powder is discolored. The inspection personnel need not to climb up the shaft tower, also can conveniently judge that the temperature of outlet clamp exists the condition that surpasses the regulation temperature when normal operating to in time overhaul, get rid of the potential safety hazard.
Example four
Referring to fig. 5, the detecting structure provided in this embodiment includes a marking rod 11, and one end of the marking rod 11 is embedded in the head 6 of the first bolt 3. The head 6 of the first bolt 3 is connected to the marking stem 11 by a fusible metal alloy 15.
The fusible metal alloy 15 is a low melting point alloy, and a low melting point alloy with a proper melting point can be selected according to the requirement.
Optionally, the surface of the marking rod 11 is painted with a color, or the marking rod 11 with a color is adopted for easy observation.
The present embodiment provides a detection structure in which, when the temperature of the clip exceeds a prescribed temperature during normal operation, the fusible metal alloy 15 is melted by heat transfer, and the identification rod 11 falls off the head 6 of the first bolt 3. The inspection personnel need not to climb up the shaft tower, also can conveniently judge that the temperature of outlet clamp exists the condition that surpasses the regulation temperature when normal operating to in time overhaul, get rid of the potential safety hazard.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. An overhead line clamp detection structure is characterized by comprising a fourth nut installed on a first bolt;
the fourth nut comprises a screwing part provided with a fourth internal thread and a color changing part provided with a closed cavity, and the screwing part and the color changing part are isolated by a partition plate;
the closed cavity is transparent, powder is coated on the inner side wall of the closed cavity, and the powder can change color after contacting with air;
the side wall of the closed cavity is provided with a fusible window, the fusible window is filled with fusible metal alloy, and the closed cavity is filled with protective gas.
2. The overhead line clip detecting structure as claimed in claim 1, wherein the powder is a metal powder.
3. The overhead line clip detecting structure as claimed in claim 1, wherein the fusible metal alloy is a low melting point alloy.
4. The overhead line clamp detecting structure as claimed in claim 1, wherein the shielding gas is an inert gas.
5. The overhead line clip detecting structure as claimed in claim 2, wherein the metal powder is iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812126.7U CN210154718U (en) | 2019-05-31 | 2019-05-31 | Overhead line presss from both sides detection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812126.7U CN210154718U (en) | 2019-05-31 | 2019-05-31 | Overhead line presss from both sides detection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210154718U true CN210154718U (en) | 2020-03-17 |
Family
ID=69761287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920812126.7U Active CN210154718U (en) | 2019-05-31 | 2019-05-31 | Overhead line presss from both sides detection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210154718U (en) |
-
2019
- 2019-05-31 CN CN201920812126.7U patent/CN210154718U/en active Active
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