CN201112585Y - Anti-skid grounding wire clamp - Google Patents
Anti-skid grounding wire clamp Download PDFInfo
- Publication number
- CN201112585Y CN201112585Y CNU2007201755606U CN200720175560U CN201112585Y CN 201112585 Y CN201112585 Y CN 201112585Y CN U2007201755606 U CNU2007201755606 U CN U2007201755606U CN 200720175560 U CN200720175560 U CN 200720175560U CN 201112585 Y CN201112585 Y CN 201112585Y
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- CN
- China
- Prior art keywords
- studdle
- spring washer
- section
- pin
- segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a skin prevention ground clip, which comprises a threaded support screw rod, wherein a conjugation segment is arranged at the top of the support screw rod, the diameter of the conjugation segment is smaller than the diameter of the support screw rod, the support screw rod is connected with a movable bottom plate via the conjugation segment, the conjugation segment is provided with an opening pinhole, the movable bottom plate is provided with an opening pin, the opening pin is accommodated into the opening pinhole, a flat washer and a spring washer are sheathed on the lower end of the conjugation segment, the spring washer is positioned above the flat washer, and the opening pinhole is provided with a movable segment allowing the opening pin to move; the length of the movable segment is 4mm; and the spring washer is made of an elastic steel material. By using the above structure, a skin prevention ground clip with simple structure and capable of preventing the support screw rod being detached can be obtained.
Description
Technical field
The utility model relates to a kind of wire clamp that is used for ground connection in electric industry production.
Background technology
Often need in the electric industry production process to use earth connection to transfer equipment to inspecting state so that equipment is overhauled.The 80th regulation in " electrical safe working order ", earth connection must use special-purpose wire clamp to be fixed on the conductor, and existing product mainly contains two kinds, and a kind of is the aluminum wire clamp, and another kind is copper wire clamp.The aluminum wire clamp is an early production, is replaced by copper wire clamp gradually.
Because copper is compared with aluminium, has advantages of higher tensile strength and hardness, and on lower shoe (the being also referred to as movable floor) surface of copper wire clamp, increased texture, overcome aluminium matter wire clamp effectively because the lubricated phenomenon of powdery that low phenomenon of rupture that causes of tensile strength and hardness cause inadequately.
But, see also Fig. 1 and shown in, be existing earthing clamp, comprise threaded studdle 1, this studdle 1 top is provided with and cooperates section 11, and this cooperates the diameter of the diameter of section 11 less than studdle, studdle 1 cooperates section 11 to connect movable floor 2 by this, cooperate section 11 to be provided with cotter-pin hold 111, movable floor 2 is provided with split pin 21, and split pin 21 is placed in the cotter-pin hold 111.Existing earthing clamp exists the phenomenon that studdle 1 gets loose easily, promptly under the situation of shock and vibration, the screw rod phenomenon that gets loose occurs.This moment, wire clamp can not provide enough frictional force that earthing clamp is fixed on the conductor, the unstable potential safety hazard of ground connection occurred, and producers' life security in serious threat.
The utility model content
In view of this, the purpose of this utility model is: provide a kind of simple in structure, and prevent the anti-slip type earthing clamp that studdle gets loose.
The technical scheme of the utility model anti-slip type earthing clamp is: a kind of anti-slip type earthing clamp, comprise threaded studdle, this studdle top is for cooperating section, this cooperates the diameter of the diameter of section less than studdle, studdle cooperates section to connect movable floor by this, cooperate section to be provided with cotter-pin hold, movable floor is provided with split pin, split pin is placed in the cotter-pin hold, this cooperation section lower end is arranged with flat shim and spring washer, spring washer is positioned at the flat shim top, and cotter-pin hold is provided with the active segment that moves for split pin.
Wherein, this active segment length is 4mm.
Wherein, this spring washer is the Elastic Steel material.
The beneficial effects of the utility model are: can obtain a kind of simple in structurely, and prevent the anti-slip type earthing clamp that studdle gets loose.
Description of drawings
Fig. 1 is existing earthing clamp structural representation;
Fig. 2 is the studdle structural representation of existing earthing clamp;
Fig. 3 is the structural representation of the utility model anti-slip type earthing clamp;
Fig. 4 is the studdle structural representation of the utility model anti-slip type earthing clamp;
Fig. 5 is an A-A face structural representation among Fig. 4.
Embodiment
As Fig. 3, Fig. 4 and shown in Figure 5, a kind of anti-slip type earthing clamp of the utility model, the studdle 1 that comprises threaded (not marking among the screw thread figure), this studdle 1 top is for cooperating section 11, this cooperates the diameter of the diameter of section 11 less than studdle, studdle 1 cooperates section 11 to connect movable floor 2 by this, cooperate section 11 to be provided with cotter-pin hold 111, movable floor 2 is provided with split pin 21, split pin 21 is placed in the cotter-pin hold 111, and it focuses on, and these cooperation section 11 lower ends are arranged with flat shim 3 and spring washer 4, spring washer 4 is positioned at flat shim 3 tops, and cotter-pin hold 111 is provided with the active segment 112 that moves for split pin 21.
Contrast a kind of earthing clamp commonly used now is an example, and the utility model is that studdle is arrived 10mm with the section of the cooperation reduced of movable floor, with cooperating the length of section to rise to 18mm, so that put into flat shim 3 and the spring washer 4 of M10; Original cotter-pin hold 11 has been increased the active segment 112 of 4mm, as in the process of spring washer compression, split pin 21 relative displacement therein.
The frictional force that spring washer 4 compression backs are produced acts on movable floor 2 and the flat shim 3, and this active force is delivered on the studdle by flat shim 3.Because spring washer 4 active forces approximately perpendicular to the studdle thread surface, have increased frictional force, make studdle become firm.The interior diameter of the spring washer 4 of present embodiment is 10mm, can buy in hard ware store.Spring washer 4 can be made by various Elastic Steel, as 65Mn, 55Cr2,60Cr2 steel etc.
In the present embodiment, the diameter of studdle 1 can be 13mm, cooperate the diameter of section 11 can be 10mm, both are more or less the same, if spring washer 4 is placed directly in the cooperation section 11, can produce bigger pressure during the less compression of Area of bearing, damage the screw thread of studdle 1 easily, weaken anti-loosing effect.Use interior diameter to be 10mm, overall diameter is that the plain washer of 14mm is exactly in order to increase Area of bearing to reduce pressure, is to meet to be more evenly distributed, scratch surface when avoiding tightening packing ring.
Claims (3)
1, a kind of anti-slip type earthing clamp, comprise threaded studdle, this studdle top is for cooperating section, and this cooperates the diameter of the diameter of section less than studdle, studdle cooperates section to connect movable floor by this, cooperate section to be provided with cotter-pin hold, movable floor is provided with split pin, and split pin is placed in the cotter-pin hold, it is characterized in that, this cooperation section lower end is arranged with flat shim and spring washer, and spring washer is positioned at the flat shim top, and cotter-pin hold is provided with the active segment that moves for split pin.
2, anti-slip type earthing clamp as claimed in claim 1 is characterized in that, this active segment length is 4mm.
3, anti-slip type earthing clamp as claimed in claim 1 is characterized in that, this spring washer is the Elastic Steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201755606U CN201112585Y (en) | 2007-09-17 | 2007-09-17 | Anti-skid grounding wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201755606U CN201112585Y (en) | 2007-09-17 | 2007-09-17 | Anti-skid grounding wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112585Y true CN201112585Y (en) | 2008-09-10 |
Family
ID=39964335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201755606U Expired - Fee Related CN201112585Y (en) | 2007-09-17 | 2007-09-17 | Anti-skid grounding wire clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112585Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901028A (en) * | 2015-05-07 | 2015-09-09 | 国家电网公司 | Safety grounding device |
| CN113764906A (en) * | 2021-10-08 | 2021-12-07 | 广东电网有限责任公司东莞供电局 | Insulating earthing device |
-
2007
- 2007-09-17 CN CNU2007201755606U patent/CN201112585Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901028A (en) * | 2015-05-07 | 2015-09-09 | 国家电网公司 | Safety grounding device |
| CN104901028B (en) * | 2015-05-07 | 2018-02-27 | 国家电网公司 | A kind of safety grounding device |
| CN113764906A (en) * | 2021-10-08 | 2021-12-07 | 广东电网有限责任公司东莞供电局 | Insulating earthing device |
| CN113764906B (en) * | 2021-10-08 | 2023-12-22 | 广东电网有限责任公司东莞供电局 | Insulating earthing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |