CN208433550U - A kind of earthing clamp - Google Patents
A kind of earthing clamp Download PDFInfo
- Publication number
- CN208433550U CN208433550U CN201821103792.5U CN201821103792U CN208433550U CN 208433550 U CN208433550 U CN 208433550U CN 201821103792 U CN201821103792 U CN 201821103792U CN 208433550 U CN208433550 U CN 208433550U
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- China
- Prior art keywords
- plate
- spring
- extension rod
- earthing clamp
- insulating bar
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Abstract
The utility model belongs to power transmission line service technique field, more particularly to a kind of earthing clamp, including the first plate (1), second plate (2), insulating bar (3), extension rod (4), first spring (5) and locking device, the insulating bar (3) is fixedly connected with one end of first plate (1), second plate (2) is fixedly connected with described first spring (5) one end, described extension rod (4) one end is fixedly connected with second plate (2), the extension rod (4) is fixedly connected with first spring (5), and the extension rod (4) is inlaid in the insulating bar (3), the locking device is located on the extension rod (4) and the insulating bar (3).The earthing clamp include locking device, have the advantages that it is at low cost, be easy to hang, mount after it is not easily to fall off.
Description
Technical field
The utility model belongs to power transmission line service technique field, and in particular to a kind of earthing clamp.
Background technique
In recent years, with rapid economic development, the scale of transmission line of electricity be increased dramatically, in order to keep the good of transmission line of electricity
Working condition is needed periodically or is overhauled according to equipment state to it, and maintenance main purpose is to grasp the work of transmission line of electricity
Make situation, find defect in time, eliminate defect, to guarantee transmission of electricity safety.And being grounded is in service work for the line that will have a power failure
The necessary devices that road is grounded, effect are to prevent from generating voltage and electric arc in unexpected incoming call, cause staff's electric shock injures and deaths.
In order to ensure equipment, the safety of personnel, when power failure operation, must hang ground line.Ground line includes one end conducting wire, in conducting wire
Both ends are respectively arranged with binding clip and earth clip, and binding clip is articulated in the predetermined position of transmission line of electricity, and earth clip is drawn by conducting wire
It is reliably connected to ground and with the ground terminal on ground, once the high-voltage electricity by unexpected power transmission, in transmission line of electricity is maked an inspection tour on route
It is introduced into the earth by ground line, staff is avoided to get an electric shock.It fails if be grounded in maintenance process because of dismounting, once
The favorite outer power transmission of transmission line of electricity will cause serious safety accident, therefore the personal safety being grounded with staff is closely closed
Connection,
Old-fashioned earthing clamp is pressed from both sides using spring-type grounding wire, this is a kind of by being inlayed using spring pressure realization
Simple mechanism, have a resilient support mandril in conductor grip, both ends are connected with angle and angle hinge respectively.Make
With when, remove hanging ring after, spring start it is tight so that two angles of mandril show the state of expansion.
The hanging ring hung is being put near conducting wire by electric power overhaul operating personnel using operating stick, be can be realized earth lead in this way and is passed through
Mandril is touched after the earthing clamp of clamping opening.The amount of making angle rapidly clamps conducting wire under the effect of spring force, thus
Complete the installation of ground line.During being removed, is pulled by operating stick and release hanging ring, it will be able to spring be presented
The state loosened out.It allows earthing clamp that the state of expansion is presented, is finally separated with conducting wire.Old-fashioned earthing clamp there are the problem of have
The following aspects:
1, because of the influence of ground line own wt during hanging, it is easy to lead to the operating stick in the case where conducting wire drives
Clamping malfunction, it is difficult to be directed at conducting wire.And upward impulse force is weaker during hanging, and is difficult to trigger earthing clamp
In support device.In the use process of old-fashioned earthing clamp, operating personnel is usually taken rapid shake operation bar impact and leads
The mode of line realizes suspension, eventually leads to and causes to wear between the two；
2, the clamping work of conducting wire is carried out by angle spring force, maximum difficult point, which is how to ensure, to be continued reliably
Spring pressure.Since there are biggish contact resistances between earthing clamp and conducting wire, it is powered when there is a situation where unexpected,
Biggish residual voltage can still be retained on route, this residual voltage also easily causes operating personnel to get an electric shock.Moreover, earthing clamp with lead
When line is contacted, if it can not bear the thermal stress of short circuit current, it will lead to conducting wire and earthing clamp be double
Double damages；
3, after being hung, earthing clamp is merely capable of realizing the clamping to conducting wire by the elastic force of spring, in wind
Under power, ground line self weight and the interference of certain human factors, it is easy to the case where falling off.At this time if unexpected power transmission
Staff's life will be will lead to be on the hazard.Moreover, power transmission can also cause the electric power of short circuit current, this burst of electric power suddenly
Directly spring clip can be caused to flick, to lose the protection of ground line.
Therefore, design a kind of novel grounded wire clamp solve existing earthing clamp hang it is inconvenient, easy to fall off, mount it is ineffective
The problems such as be just particularly important.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of earthing clamp.This is practical
Novel technical problems to be solved are achieved through the following technical solutions:
The utility model embodiment provides a kind of earthing clamp, including the first plate, the second plate, insulating bar, extension
Bar, the first spring and locking device, the insulating bar are fixedly connected with one end of first plate, second plate with
First spring one end is fixedly connected, and described extension rod one end is fixedly connected with second plate, the extension rod and institute
It states the first spring to be fixedly connected, and the extension rod is inlaid in the insulating bar, the locking device is located at the extension rod
On the insulating bar.
In one embodiment of the utility model, the locking device includes positioning pin, location hole, second spring and drawing
Rope, the positioning pin are fixedly connected with the extension rod, and the location hole is arranged on the insulating bar, the second spring one
End is fixedly connected with the extension rod, and described drawstring one end is connect with the extension rod tail portion, and the drawstring other end stretches out institute
State insulating bar.
In one embodiment of the utility model, it is provided with the first permanent-magnet structure on first plate, described
The second permanent-magnet structure corresponding with first permanent-magnet structure is provided on second plate.
In one embodiment of the utility model, the second spring central point and the positioning pin central point are at one
On horizontal line.
In one embodiment of the utility model, it is maximum that the location hole minimum diameter is greater than the positioning pin cross section
Diameter.
In one embodiment of the utility model, first plate and second plate are flat aluminium alloy plate.
In one embodiment of the utility model, first spring and the second spring are stainless steel spring.
A kind of ground line that another embodiment of the utility model provides, including conducting wire, insulating protective layer, and as above
State earthing clamp described in embodiment；Wherein, the insulating protective layer is wrapped in outside the conducting wire, the conducting wire and the ground connection
Wire clamp connection.
The utility model has the beneficial effects that
1, the earthing clamp of the utility model embodiment is hatch frame, is easy to hang；
2, the locking device of the utility model embodiment includes positioning pin, location hole, second spring and drawstring, is not being used
When, positioning pin is stretched in outside location hole and locking, and the first plate and the second plate are discrete state；Pressing positioning when clamping cable
Pin, positioning pin ecto-entad under the action of second spring are moved into insulating bar, make the second plate in the first spring force
The lower locking state that is detached from of effect moves upwards, and the first plate and the second plate are by the first permanent-magnet structure and the second permanent-magnet structure
Magnetic attraction realizes the secured clamping to cable；When dismantling earthing clamp, drawstring is pulled, the second plate is made to be detached from locking state,
Extension rod moves downward under the pulling force effect of drawstring, in second spring when positioning pin travels downward through location hole with extension rod
Under elastic force effect from inside to outside contact and stretch in outside location hole and locking, separate the first plate and the second plate, realization connects
Disengaging of the ground clamp to conducting wire.The locking device has advantage at low cost, easily operated, can effectively solve existing ground line
Press from both sides problem easy to fall off, that mounting is ineffective.
The utility model is described in further details below with reference to accompanying drawings and embodiments.
Through the following detailed description with reference to the accompanying drawings, the other aspects and feature of the utility model become obvious.But it answers
When knowing, which is only the purpose design explained, not as the restriction of the scope of the utility model, this is because its
It should refer to appended claims.It should also be noted that unless otherwise noted, it is not necessary to which scale attached drawing, they are only
Try hard to conceptually illustrate structure and process described herein.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of earthing clamp provided by the embodiment of the utility model；
Fig. 2 is a kind of structural schematic diagram of ground line provided by the embodiment of the utility model.
In figure: 1, the first plate；2, the second plate；3, insulating bar；4, extension rod；5, the first spring；6, positioning pin；7, fixed
Position hole；8, second spring；9, drawstring；10-1, the first permanent-magnet structure；10-2, the second permanent-magnet structure；11, conducting wire；12, insulation is protected
Sheath.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the utility model is further described, below in conjunction with attached drawing
And embodiment, to specific embodiment of the present utility model, structure feature and its effect, detailed description are as follows.
Embodiment 1:
Referring to Figure 1, Fig. 1 is a kind of structural schematic diagram of earthing clamp provided by the embodiment of the utility model.
The earthing clamp include: including the first plate 1, the second plate 2, insulating bar 3, extension rod 4, the first spring 5 and
Locking device, the insulating bar 3 are fixedly connected with one end of first plate 1, second plate 2 and first spring
5 one end are fixedly connected, and described 4 one end of extension rod is fixedly connected with second plate 2, the extension rod 4 and first bullet
Spring 5 is fixedly connected, and the extension rod 4 is inlaid in the insulating bar 3, and the locking device is located at the extension rod 4 and institute
It states on insulating bar 3.
Further, the locking device includes positioning pin 6, location hole 7, second spring 8 and drawstring 9, the positioning pin 6
Be fixedly connected with the extension rod 4, the location hole 7 is arranged on the insulating bar 3, described 8 one end of second spring with it is described
Extension rod 4 is fixedly connected, and described 9 one end of drawstring is connect with 4 tail portion of extension rod, and 9 other end of drawstring stretches out described exhausted
Edge bar 3.
The shape of the location hole is mutually agreed with the positioning pin, and the positioning pin is enable to pass through the location hole.
Further, it is provided with the first permanent-magnet structure 10-1 on first plate 1, is set on second plate 2
It is equipped with second permanent-magnet structure 10-2 corresponding with the first permanent-magnet structure 10-1.
The first permanent-magnet structure 10-1 is corresponding with the second permanent-magnet structure 10-2 forward direction and size is identical, is being attracted shape
Under state, the first permanent-magnet structure 10-1 covering Chong Die with the second permanent-magnet structure 10-2.By first permanent-magnet structure
10-1 and the second permanent-magnet structure 10-2 powerful magnetic attraction, it can be ensured that first plate 1 and second plate 2
Guarantee stable connection when clamping cable, and then guarantees the safety of ground line work.
Further, 8 central point of second spring and 6 central point of positioning pin are on a horizontal line.
Further, 7 minimum diameter of location hole is greater than the 6 cross section maximum gauge of positioning pin.
Further, first plate 1 and 2 material of the second plate are preferably that specific gravity is small but the higher aluminium of intensity closes
Golden plate.
Further, first spring 5 and the second spring 8 are preferably fatigue resistance, heat-and corrosion-resistant performance
All good stainless steel spring.
When not in use, the positioning pin 6 is stretched outer in the location hole 7 and is locked, first plate 1 and described the
Two plates 2 are discrete state；The positioning pin 6, effect of the positioning pin 6 in the second spring 8 are pressed when clamping cable
Lower ecto-entad is moved into the insulating bar 3, is detached from second plate 2 under 5 elastic force of the first spring effect
Locking state moves upwards, and first plate 1 and second plate 2 are by the first permanent-magnet structure 10-1 and described the
The magnetic attraction of two permanent-magnet structure 10-2 realizes the secured clamping to cable；When dismantling the earthing clamp, the drawstring is pulled
9, so that second plate 2 is detached from locking state, the extension rod 4 moves downward under the pulling force effect of the drawstring 9, described
When positioning pin 6 travels downward through the location hole 7 with the extension rod 4 under 8 elastic force of second spring effect from it is inner to
Outer contact and stretch outer in the location hole 7 and lock, separate first plate 1 and second plate 2, described in realization
Disengaging of the earthing clamp to the conducting wire.The locking device has advantage at low cost, easily operated, can effectively solve existing
The problem that earthing clamp is easy to fall off, mounting is ineffective.
Embodiment 2:
Fig. 2 is referred to, Fig. 2 is a kind of structural schematic diagram of ground line provided by the embodiment of the utility model.
A kind of ground line, including conducting wire 11, insulating protective layer 12, and the earthing clamp as described in above-described embodiment；Its
In, the insulating protective layer 12 is wrapped in outside the conducting wire 11, and the conducting wire 11 is connect with the earthing clamp.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (8)
1. a kind of earthing clamp, which is characterized in that including the first plate (1), the second plate (2), insulating bar (3), extension rod
(4), the first spring (5) and locking device, the insulating bar (3) is fixedly connected with one end of first plate (1), described
Second plate (2) is fixedly connected with described first spring (5) one end, and described extension rod (4) one end and second plate (2) are solid
Fixed connection, the extension rod (4) is fixedly connected with first spring (5), and the extension rod (4) is inlaid in the insulating bar
(3) in, the locking device is located on the extension rod (4) and the insulating bar (3).
2. earthing clamp according to claim 1, which is characterized in that the locking device includes positioning pin (6), location hole
(7), second spring (8) and drawstring (9), the positioning pin (6) are fixedly connected with the extension rod (4), and the location hole (7) sets
It sets on the insulating bar (3), described second spring (8) one end is fixedly connected with the extension rod (4), the drawstring (9) one
End is connect with the extension rod (4) tail portion, and drawstring (9) other end stretches out the insulating bar (3).
3. earthing clamp according to claim 1, which is characterized in that be provided with first forever on first plate (1)
Magnetic structure (10-1) is provided with the second permanent magnetism corresponding with the first permanent-magnet structure (10-1) on second plate (2)
Structure (10-2).
4. earthing clamp according to claim 2, which is characterized in that second spring (8) central point and the positioning
(6) central point is sold on a horizontal line.
5. earthing clamp according to claim 2, which is characterized in that it is described fixed that location hole (7) minimum diameter is greater than
Position pin (6) cross section maximum gauge.
6. earthing clamp according to claim 1, which is characterized in that first plate (1) and second plate (2)
It is flat aluminium alloy plate.
7. earthing clamp according to claim 2, which is characterized in that first spring (5) and the second spring (8)
It is stainless steel spring.
8. a kind of ground line, which is characterized in that including conducting wire (11), insulating protective layer (12), and such as claim 1-7 are any
Earthing clamp described in；Wherein, the insulating protective layer (12) is wrapped in the conducting wire (11) outside, and the conducting wire connects with described
Ground clamp connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821103792.5U CN208433550U (en) | 2018-07-12 | 2018-07-12 | A kind of earthing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821103792.5U CN208433550U (en) | 2018-07-12 | 2018-07-12 | A kind of earthing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208433550U true CN208433550U (en) | 2019-01-25 |
Family
ID=65100065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821103792.5U Active CN208433550U (en) | 2018-07-12 | 2018-07-12 | A kind of earthing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208433550U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541064A (en) * | 2020-05-27 | 2020-08-14 | 国网河北省电力有限公司邢台供电分公司 | Anti-drop wire clamp |
| CN112510383A (en) * | 2020-11-02 | 2021-03-16 | 贵州电网有限责任公司 | Clamping type quick-release grounding rod |
-
2018
- 2018-07-12 CN CN201821103792.5U patent/CN208433550U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541064A (en) * | 2020-05-27 | 2020-08-14 | 国网河北省电力有限公司邢台供电分公司 | Anti-drop wire clamp |
| CN112510383A (en) * | 2020-11-02 | 2021-03-16 | 贵州电网有限责任公司 | Clamping type quick-release grounding rod |
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