CN210572394U - Hook for insulation measurement of high-voltage overhead line - Google Patents
Hook for insulation measurement of high-voltage overhead line Download PDFInfo
- Publication number
- CN210572394U CN210572394U CN201921122060.5U CN201921122060U CN210572394U CN 210572394 U CN210572394 U CN 210572394U CN 201921122060 U CN201921122060 U CN 201921122060U CN 210572394 U CN210572394 U CN 210572394U
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- hook
- shaped
- brake
- brake pull
- overhead line
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Abstract
The utility model discloses a hook piece for insulation measurement of a high-voltage overhead line, which comprises a hook, a hook piece-shaped handle connected with the lower end of the hook, and a screw rod arranged at the bottom of the hook piece-shaped handle; the screw rod penetrates through the sheet-shaped handle of the hook piece and then is connected with the nut; the hook piece sheet handle is calabash-shaped, the middle part of hook piece sheet handle is the cavity body of calabash-shaped, and the lower hole aperture of calabash-shaped cavity body is greater than last hole aperture and is greater than the diameter that the end was colluded in the brake pull rod brake-out, and the last hole aperture of calabash-shaped cavity body is greater than the diameter that the brake pull rod brake-out colluded and is less than the diameter that the end was colluded in the brake pull rod brake-out. The utility model discloses a hook is small, and the operation is safe convenient, can improve work efficiency greatly, and low in manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of high-voltage overhead line insulation measurement device, specifically be a hook piece for high-voltage overhead line insulation measurement.
Background
Traditionally, when insulation measurement is performed on a high-voltage overhead line (such as 35kV), a single-core multi-strand copper wire with an insulation layer is generally adopted, the insulation layers at two ends are stripped, one end of the single-core multi-strand copper wire is connected to a corresponding wiring terminal of a 5000V insulation measurer, the other end of the single-core multi-strand copper wire is bent into a hook shape by hand, and a connector type high-voltage brake pull rod is used for hooking or dismounting. Generally, such wires are relatively soft, have a very irregular hook-shaped portion formed by bending with a hand, and are easily deformed or straightened during operation, resulting in falling off. In addition, when the operation is generally carried out, the distance between the hanging point and the ground is higher, and some are even as high as 10 meters or more, so that the working head at the top of the interface type high-voltage brake pull rod swings and is not easy to hang and remove, if the wind level is larger, the operation is not easy, the operation is not successful after repeated operation, and the working efficiency is extremely low. Moreover, in the traditional method, the wire is greatly influenced by wind power and is easily blown down to cause accidents in the process of making insulation measurement, because the wind level is one big, the wire is light, the strength of the lap joint is not enough, the wire is easily blown down by wind or even touches the human body, and at the moment, the insulation measurer is still in the middle of pressurization to cause the danger of accidental electric shock of workers.
SUMMERY OF THE UTILITY MODEL
The above-mentioned problem to the conventional operation existence, the utility model provides a have to high-voltage overhead line when carrying out looks, relatively ground insulation measurement, safe convenient, economic and reliable's supplementary hook piece of eminence operation.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the hook piece for insulation measurement of the high-voltage overhead line comprises a hook, a hook piece-shaped handle connected with the lower end of the hook, and a screw rod arranged at the bottom of the hook piece-shaped handle; the screw rod penetrates through the sheet-shaped handle of the hook piece and then is connected with the nut; the hook piece sheet handle is calabash-shaped, the middle part of hook piece sheet handle is the cavity body of calabash-shaped, and the lower hole aperture of calabash-shaped cavity body is greater than last hole aperture and is greater than the diameter that the end was colluded in the brake pull rod brake-out, and the last hole aperture of calabash-shaped cavity body is greater than the diameter that the brake pull rod brake-out colluded and is less than the diameter that the end was colluded in the brake pull rod brake-out.
Further, the inner arc of the hook is flat.
Furthermore, the aperture of an upper hole of the gourd-shaped cavity body is 1.05-1.10 times of the diameter of a brake pull hook of the brake pull rod.
Furthermore, the aperture of the lower hole of the gourd-shaped cavity body is 2.0-2.5 times of the diameter of the brake pull hook end of the brake pull rod.
Further, the screw rod is positioned right in the middle of the bottom of the hook sheet-shaped handle.
Further, the diameter of the screw is 4.5-5.5 millimeters.
Further, the thickness of the hook piece-shaped handle is 3-5 mm.
Furthermore, the hook is made of stainless steel.
The utility model discloses following beneficial effect has:
(1) the main body of the hook piece, namely the sheet-shaped handle of the hook piece, is arranged into a gourd shape, the upper part is small, the lower part is large, the gravity center of the hook piece is stable, and the hook piece is always in a vertical state in the air under the action of gravity, cannot be transversely or overturned, and is not easy to fall off.
(2) The middle part of the sheet-shaped handle of the hook piece is arranged into a gourd-shaped cavity, the lower hole is large, the upper hole is small, the operation is convenient, the operation flexibility and reliability are considered, and the hook piece is easily hooked and detached by the brake pull rod.
(3) The bottom of the sheet-shaped handle of the hook is provided with a screw rod penetrating through the sheet-shaped handle of the hook, the upper end head of the wire for measurement is connected to the screw rod and fixed through a nut, and the wire is not easy to fall off.
(4) The utility model discloses a hook is small, and the operation is safe convenient, can improve work efficiency greatly, and low in manufacturing cost.
Drawings
Fig. 1 is a schematic structural diagram of the hook for insulation measurement of the high-voltage overhead line of the present invention;
fig. 2 is another schematic structural diagram of the hook for insulation measurement of the high-voltage overhead line of the invention;
fig. 3 is a schematic structural diagram of a brake pull rod used with the hook for insulation measurement of a high-voltage overhead line.
Wherein: 1-hook, 2-hook sheet handle, 3-screw, 4-nut, 5-cavity, 6-brake pull rod, 7-brake pull hook.
Detailed Description
The technical solution of the present invention will be further described in non-limiting detail with reference to the following examples and drawings.
The utility model discloses a hook piece for insulation measurement of high-voltage overhead lines, which comprises a hook 1, a hook piece sheet-shaped handle 2 connected with the lower end of the hook 1, and a screw rod 3 arranged at the bottom of the hook piece sheet-shaped handle 2; the screw rod 3 penetrates through the hook piece-shaped handle 2 and then is connected with the nut 4; the hook piece-shaped handle 2 is in a gourd shape, the middle part of the hook piece-shaped handle 2 is a gourd-shaped cavity body 5, the lower hole aperture d1 of the gourd-shaped cavity body 5 is larger than the upper hole aperture d2 and larger than the diameter d4 of the end head of the brake pull hook 7 of the brake pull rod 6, and the upper hole aperture d2 of the gourd-shaped cavity body is larger than the diameter d3 of the brake pull hook 7 of the brake pull rod 6 and smaller than the diameter d4 of the end head of the brake pull hook 7 of the brake pull rod 6.
The inner arc of the hook 1 is flat so as to increase the contact area between the hook and a lead at a hanging point, and the hook is more stable to be hung with the lead.
The aperture d2 of the upper hole of the gourd-shaped hollow cavity is 1.05-1.10 times of the diameter d3 of the brake pull hook 7 of the brake pull rod. The brake-pulling hook can easily and naturally slide into the upper hole of the cavity body, and is well matched with the upper hole of the cavity body and not easy to fall off.
The aperture d1 of the lower hole of the gourd-shaped cavity body is 2.0-2.5 times of the diameter d4 of the end of the brake pull hook 7 of the brake pull rod. Convenient operation, compromise operation flexibility and reliability, easily the brake lever articulates and demolishs the hook piece. The hanging point is generally higher and may reach 10 meters or more, the working head of the brake pull rod can shake at the moment, the vision is influenced by weather and wind power, and the brake pull hook is difficult to align to the lower hole of the cavity body when being dismounted, so the diameter of the lower hole of the cavity body is larger than that of the brake pull hook.
The screw rod 3 is positioned in the middle of the bottom of the hook sheet-shaped handle 2; the diameter of the screw is 4.5-5.5 mm. The upper end of the wire for measurement can be well fixed on the screw rod, and the screw rod is positioned on the gravity action line of the hook piece, so that the vertical state of the hook piece in the air during operation is not influenced, and the hook piece cannot be transversely crossed or overturned. The screw rod is preferably provided with a full gasket and a spring leaf during wiring.
The thickness of the hook piece-shaped handle is 3-5 mm; the hook is made of stainless steel. The hook has certain weight, so that the good contact performance of the contact surface can be improved, and the hook has good wind resistance.
The utility model discloses a use method for high-tension overhead line insulation measurement's hook:
when the measuring device needs to be hung, the lower end of the measuring wire is connected to a corresponding wiring terminal of the insulation measurer, the upper end of the measuring wire is connected to the screw rod and fixed through the nut, the brake pull hook of the brake pull rod is inserted into the lower hole of the gourd-shaped cavity body, only upward light lifting is needed, the brake pull hook naturally slides into the upper hole of the gourd-shaped cavity body from bottom to top and is well matched with the brake pull hook, the brake pull hook is not easy to fall off, and the hook is hung at a corresponding hanging point through the brake pull rod. When the device needs to be dismantled, the brake pull hook is aligned to the lower hole of the gourd-shaped cavity body, the brake pull hook naturally slides into the upper hole of the gourd-shaped cavity body from bottom to top and is well matched with the brake pull hook, the hook piece is taken down through the brake pull rod, the measuring lead is taken out of the screw rod, and then the dismantling work can be completed. The hanging and dismantling operation is safe and convenient, and the working efficiency can be greatly improved.
Claims (8)
1. A hook piece for high-voltage overhead line insulation measurement, its characterized in that: comprises a hook, a hook sheet-shaped handle connected with the lower end of the hook, and a screw arranged at the bottom of the hook sheet-shaped handle; the screw rod penetrates through the sheet-shaped handle of the hook piece and then is connected with the nut; the hook piece sheet handle is calabash-shaped, the middle part of hook piece sheet handle is the cavity body of calabash-shaped, and the lower hole aperture of calabash-shaped cavity body is greater than last hole aperture and is greater than the diameter that the end was colluded in the brake pull rod brake-out, and the last hole aperture of calabash-shaped cavity body is greater than the diameter that the brake pull rod brake-out colluded and is less than the diameter that the end was colluded in the brake pull rod brake-out.
2. Hook for high-voltage overhead line insulation measurement according to claim 1, characterized in that: the inner arc of the hook is flat.
3. Hook for high-voltage overhead line insulation measurement according to claim 1, characterized in that: the aperture of an upper hole of the gourd-shaped cavity body is 1.05-1.10 times of the diameter of a brake pull hook of the brake pull rod.
4. Hook for high-voltage overhead line insulation measurement according to claim 1, characterized in that: the aperture of the lower hole of the gourd-shaped cavity body is 2.0-2.5 times of the diameter of the end head of the brake pull hook of the brake pull rod.
5. Hook for high-voltage overhead line insulation measurement according to claim 1, characterized in that: the screw rod is positioned in the middle of the bottom of the hook sheet-shaped handle.
6. Hook for high-voltage overhead line insulation measurement according to claim 1, characterized in that: the diameter of the screw is 4.5-5.5 mm.
7. Hook for high-voltage overhead line insulation measurement according to claim 1, characterized in that: the thickness of the sheet-shaped handle of the hook piece is 3-5 mm.
8. Hook for high-voltage overhead line insulation measurement according to claim 1, characterized in that: the hook is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921122060.5U CN210572394U (en) | 2019-07-17 | 2019-07-17 | Hook for insulation measurement of high-voltage overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921122060.5U CN210572394U (en) | 2019-07-17 | 2019-07-17 | Hook for insulation measurement of high-voltage overhead line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210572394U true CN210572394U (en) | 2020-05-19 |
Family
ID=70637958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921122060.5U Expired - Fee Related CN210572394U (en) | 2019-07-17 | 2019-07-17 | Hook for insulation measurement of high-voltage overhead line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210572394U (en) |
-
2019
- 2019-07-17 CN CN201921122060.5U patent/CN210572394U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 Termination date: 20210717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |