CN213989262U - Protective ground wire hanging joint for automatic switch - Google Patents
Protective ground wire hanging joint for automatic switch Download PDFInfo
- Publication number
- CN213989262U CN213989262U CN202022719917.0U CN202022719917U CN213989262U CN 213989262 U CN213989262 U CN 213989262U CN 202022719917 U CN202022719917 U CN 202022719917U CN 213989262 U CN213989262 U CN 213989262U
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- China
- Prior art keywords
- screw
- metal block
- welded
- automatic switch
- screw rod
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- 230000001681 protective effect Effects 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims 1
- 238000005260 corrosion Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 6
- 206010014357 Electric shock Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 208000013935 Electric injury Diseases 0.000 description 1
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
A protective earth wire hanging joint for automatic switch is characterized in that a U-shaped fork formed by bending a strip iron plate is welded on two side surfaces of a rectangular metal block close to the upper part of the rectangular metal block, a screw hole penetrating through the metal block is processed at the center of the U-shaped fork welded on the metal block, a screw rod is screwed in the screw hole, and a handle is arranged at the outer end of the screw rod; a screw hole is also processed at the center of the bottom of the metal block, a screw is screwed in the screw hole, a lug plate is pressed on the metal block by the screw, and a metal wire used for grounding is connected to the lug plate. The bent part of the U-shaped fork and the head part of the screw form a clip, and the screw can move forwards or backwards by screwing a handle on the screw so as to enlarge or reduce the diameter of the clip, thereby being sleeved on screw caps with different diameters. The utility model has the advantages that: the protective ground wire hanging joint can be conveniently arranged on a user side screw cap of the automatic switch.
Description
Technical Field
The utility model relates to a ground wire attach fitting especially relates to a protection ground wire attach fitting for automatic switch.
Background
When the power supply department replaces the electric meter for the user site, the power supply department requires power failure and carries out operation after protective measures are taken. The power failure refers to the fact that an automatic switch or a manual isolating switch at the front stage of the electric meter line must be disconnected, and the protection measure refers to the fact that a grounding wire is hung on a user side terminal of the disconnected automatic switch or the disconnected manual isolating switch in a hanging mode to prevent electric shock and injury accidents. However, the user side terminal of the existing automatic switch or manual isolating switch has a small operation space, and the existing ground wire hanging connector has a large size, so that the existing ground wire hanging connector is difficult to operate and hang, and has a risk of touching a charged part during operation.
Disclosure of Invention
The utility model aims at providing a protection ground wire attach fitting for automatic switch, it is small in size not only, easily operation, moreover in operation can not touch the electrified position of switch, consequently avoided the risk of electric shock.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a protective earth wire hanging joint for automatic switch is prepared as welding a U-shaped fork made by bending bar iron plate on rectangular metal block at position near to top of metal block, welding two outsides of two straight edges of U-shaped fork on two side faces of metal block, processing a screw hole penetrating through metal block at center of U-shaped fork welded on metal block, screwing a screw in screw hole and installing a handle at external end of screw rod; a screw hole is also processed at the center of the bottom of the metal block, a screw is screwed in the screw hole, a lug plate is pressed on the metal block by the screw, and a metal wire used for grounding is connected to the lug plate.
The bent part of the U-shaped fork and the head of the screw form a clip, and the screw can move forward or backward by screwing the handle on the screw so as to enlarge or reduce the diameter of the clip, thus the clip can be sleeved on screw caps with different diameters.
The handle on the screw rod is a short iron rod welded at the end part of the screw rod or a circular hand wheel, and friction grains or protrusions are processed on the periphery of the hand wheel to increase the friction force for screwing the screw rod.
The surface of the welding body of the metal block and the U-shaped fork is also covered with a zinc coating, and the surface of the welding body of the screw and the handle is also covered with a zinc coating so as to protect the components from being corroded.
Compared with the prior art, the beneficial effects of the utility model are that:
the protective ground wire hanging joint of the utility model adopts the hoop type clamp composed of the U-shaped bent plate and the adjustable screw rod, which is sleeved on the user side screw rod cap of the automatic switch, not only can be tightly screwed on the screw rod cap, but also the inner diameter of the clamp is enlarged or reduced due to the forward movement or the backward movement of the adjustable screw rod, so as to adapt to the sizes of different screw rod caps; an iron rod or a hand wheel is welded at the end part of the adjustable screw rod, so that the convenience of screwing the screw rod is improved, and the whole operation is more flexible and convenient.
Drawings
Fig. 1 is the overall structure schematic diagram of the ground wire hanger of the present invention.
Fig. 2 is a schematic top view of a protective earth wire hanger.
Fig. 3 is a schematic cross-sectional view of the overall structure of the protective earth wire hanger.
Fig. 4 is a schematic view of the use of a protective earth wire hanger.
In the figure: 1-U-shaped fork, 2-metal block, 3-screw rod, 4-hand wheel, 5-grounding wire, 6-lug, 7-screw, 8-screw hole, 9-screw hole, 10-automatic switch and 11-screw rod cap.
Detailed Description
The following describes the specific structure of the ground wire hanger according to the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1, fig. 2 and fig. 3, the ground wire hanger of the present invention has a rectangular metal block 2, a U-shaped fork 1 bent from a strip iron plate is welded on the rectangular metal block 2 at a position near the upper portion thereof, the outer portions of two straight edges of the U-shaped fork 1 are welded on two side surfaces of the metal block 2, a screw hole 9 penetrating through the metal block 2 is processed at the center of the portion welded with the U-shaped fork 1 on the metal block 2, a screw rod 3 is screwed in the screw hole 9, and a hand wheel 4 is installed at the outer end of the screw rod 3; a screw hole 8 is also processed at the center of the bottom of the metal block 2, a screw 7 is screwed in the screw hole 8, the screw 7 presses a lug 6 on the metal block 2, and a grounding wire 5 is pressed on the lug 6.
The bent part of the U-shaped fork 1 and the head of the screw rod 3 form a clip, and the screw rod 3 can move forwards or backwards by screwing the hand wheel 4 on the screw rod 3, so that the diameter of the clip is increased or reduced, and the clip can be sleeved on screw caps 11 with different diameters.
The periphery of a hand wheel 4 on the screw rod 3 is provided with friction grains or bulges so as to increase the friction force for screwing the screw rod. The hand wheel 4 can also be replaced by a short iron rod welded at the end part of the screw rod 3, so that the short iron rod and the screw rod 3 form a T-shaped structure, and the convenience of screwing the screw rod 3 can also be increased.
The surface of the welding body of the metal block 2 and the U-shaped fork 1 is also covered with a zinc coating, and the surface of the welding body of the screw rod 3 and the hand wheel 4 is also covered with a zinc coating so as to protect the components from being corroded.
As shown in fig. 4, the usage of the hanging joint for protecting ground wire of the present invention is as follows: firstly, the screw rod 3 of the ground wire protective hanging joint is screwed outwards, when the diameter of a clamp formed by the bent part of the U-shaped fork 1 and the head part of the screw rod 3 is larger than that of a screw rod cap 11 on the automatic switch 10, the bent part of the U-shaped fork 1 is sleeved on the screw rod cap 11, and the hand wheel 4 is screwed to enable the screw rod 3 to advance and be propped against the screw rod cap 11, so that the bent part of the U-shaped fork 1 can be tightly leaned against the screw rod cap 11, the ground wire protective 5 is hung, and the hanging operation of the ground protection wire is completed. If the three-phase user terminal of the automatic switch needs to be connected with the grounding wire in a hanging way, another protective grounding wire hanging connector is taken to operate according to the method.
Compared with the prior art, the beneficial effects of the utility model are that:
the protective ground wire hanging joint of the utility model adopts the hoop type clamp composed of the U-shaped bent plate and the adjustable screw rod, which is sleeved on the user side screw rod cap of the automatic switch, not only can be tightly screwed on the screw rod cap, but also the inner diameter of the clamp is enlarged or reduced due to the forward movement or the backward movement of the adjustable screw rod, so as to adapt to the sizes of different screw rod caps; an iron rod or a hand wheel is welded at the end part of the adjustable screw rod, so that the convenience of screwing the screw rod is improved, and the whole operation is more flexible and convenient.
Claims (4)
1. A protective earth wire hanging joint for an automatic switch is characterized in that a U-shaped fork bent by a strip-shaped iron plate is welded on a rectangular metal block at a position close to the upper part of the rectangular metal block, the outer parts of two straight edges of the U-shaped fork are welded on two side surfaces of the metal block, a screw hole penetrating through the metal block is processed at the center of the U-shaped fork part welded on the metal block, a screw rod is screwed in the screw hole, and a handle is arranged at the outer end part of the screw rod; a screw hole is also processed at the center of the bottom of the metal block, a screw is screwed in the screw hole, a lug plate is pressed on the metal block by the screw, and a metal wire used for grounding is connected to the lug plate.
2. A ground wire hanger for automatic switches according to claim 1, wherein the bent portion of the clevis and the head of the screw form a hook, and the screw is advanced or retracted by screwing a handle on the screw, so that the hook is enlarged or reduced in diameter and thus can be fitted over screw caps of different diameters.
3. A ground wire hanger for an automatic switch as claimed in claim 2, wherein the handle of the screw is a short iron rod welded to the end of the screw or a circular hand wheel, and the outer circumference of the hand wheel is provided with friction lines or protrusions to increase the friction force for screwing the screw.
4. A ground wire hanger for an automatic switch as defined in claim 1, wherein said welded body of said metal block and said U-shaped yoke is covered with a zinc coating, and said welded body of said screw and said handle is covered with a zinc coating to protect said members from corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022719917.0U CN213989262U (en) | 2020-11-21 | 2020-11-21 | Protective ground wire hanging joint for automatic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022719917.0U CN213989262U (en) | 2020-11-21 | 2020-11-21 | Protective ground wire hanging joint for automatic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213989262U true CN213989262U (en) | 2021-08-17 |
Family
ID=77265791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022719917.0U Active CN213989262U (en) | 2020-11-21 | 2020-11-21 | Protective ground wire hanging joint for automatic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213989262U (en) |
-
2020
- 2020-11-21 CN CN202022719917.0U patent/CN213989262U/en active Active
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