CN105932445A - Short-circuit ground clamp with locking anti-loosening function - Google Patents
Short-circuit ground clamp with locking anti-loosening function Download PDFInfo
- Publication number
- CN105932445A CN105932445A CN201610363122.6A CN201610363122A CN105932445A CN 105932445 A CN105932445 A CN 105932445A CN 201610363122 A CN201610363122 A CN 201610363122A CN 105932445 A CN105932445 A CN 105932445A
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- China
- Prior art keywords
- hook
- wire
- ratchet plate
- short circuit
- locking anti
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
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- Clamps And Clips (AREA)
Abstract
The invention relates to a short-circuit ground clamp with a locking anti-loosening function. The short-circuit ground clamp comprises a clamp body and a locking device, wherein the clamp body comprises a hook, two tongue pieces movably connected to the inner side of the hook and two tension springs arranged between the hook and the tongue pieces. The short-circuit ground clamp is characterized in that the locking device is a ratchet wheel non-return mechanism, the ratchet wheel non-return mechanism allows a conducting wire to enter the clamp body, and the conducting wire is restricted to retreat from the clamp body. The short-circuit ground clamp has the advantage that the locking device is added on the basis of an existing duck tongue type (double-tongue tensioning type) ground clamp without changing original operation habits, so that the short-circuit ground clamp has the characteristics of simple structure, sensitive actions and easy operation, and solves the risk that the existing ground clamp is likely to slide out of the conducting wire.
Description
Technical field
The present invention relates to electric power safety fixture fields, be specifically related to a kind of short circuit earthing clamp.
Background technology
Along with development and the requirement of the line security method of operation of electrical network, the interruption maintenance on ultra-high-tension power transmission line is made
Industry is the most increased.The when of conducting transmission line maintenance, want according to " electric power safety working regulation " and standardized work flows
Ask, after having tested electricity, hang up properly short-circuit grounding wire immediately, carry out the work of defect processing the most again.Short circuit earthing clamp (also known as
Conductor wire end card) it is a kind of being specifically designed to the vitals of the transmission pressure temporary short-circuit ground connection having a power failure, its dependable performance
Can guarantee that the safety of ultra-high-tension power transmission line interruption maintenance, prevent from sending a telegram here suddenly or neighbouring high voltage alive equipment generation induced voltage pair
The harm of human body.
The short circuit earthing clamp that current each grid company uses mainly has spirally, duck tongue type (double tongue tension-type), flat mouth
Formula and impacting type.The chucking power produced when duck tongue type is due to clamping wire compares balance, and compares the most convenient to operate and extensively make
With.Its primary structure is made up of a hook, two tongue pieces, two tension springs and insulating bar or insulating cord, action bars
Or insulating cord is connected with hook, hook has two clamping parts and connects the bending section of clamping part, and two tongue pieces are relative to cloth
Put and its one end respectively with link up with two clamping parts and be flexibly connected, the other end stretches in the groove that bending section is provided with, and forms splayed
Jaws, the earthing clamp of this structure when for hanging wire, wire enter jaws position corresponding with its size time, open
Begin to make two tongue pieces rotate in different directions, until two tongue pieces make elastic force hook can be fixed on wire owing to tension spring produces
On, i.e. complete hanging wire process.
But, hang up properly that rear wire is positioned at two tongue pieces folds place, i.e. the top of herringbone, owing to high-tension line is in
In outdoor environment, wire is by producing vibrations, wave the reliable hook that can affect earth wire clip, and earth wire clip also can be at wind-force
Effect is lower to be loosened or slips, and makes grounding hook overturn, even comes off from wire, cause temporary short-circuit ground connection invalid or
Lost efficacy, and when wrong power transmission or faradism it cannot be guaranteed that operating personnel's safety, often occurred to fall when electric shock or faradism
The generation of great death by accident, there is major defect, there is great potential safety hazard in the most current short circuit grounding cable clip structure.
Therefore, how existing duck tongue type short circuit earthing clamp is improved, it is achieved prevent the function got loose so that it is
The problem overcoming above-mentioned existence, is those skilled in the art's problems urgently to be resolved hurrily.
Summary of the invention
Present invention is primarily targeted at a kind of short circuit earthing clamp with locking anti-loose function of offer, it is existing
Add blocking device on the basis of some duck tongue types (double tongue tension-type) earthing clamp, and do not change original operating habit,
There is simple in construction, be active in one's movements and maneuverable feature, solve existing earthing clamp and may skid off the risk of wire.
For reaching object above, the technical solution used in the present invention is: a kind of short circuit with locking anti-loose function connects
Ground clamp, including wire clip body and blocking device, described wire clip body includes a hook, is movably connected in inside described hook
Two tongue pieces, and two tension springs being arranged between described hook and described tongue piece, it is characterised in that: described locking fills
Being set to ratchet back-stop mechanism, this ratchet back-stop mechanism allows wire to enter described wire clip body, and limits described wire and exit institute
State wire clip body.Ratchet back-stop mechanism is a kind of Unidirectional movement mechanism, is used on wire clamp and can effectively realize wire and " only enter
Do not go out ", i.e. solve existing earthing clamp and may skid off the risk of wire.
As preferably, described blocking device includes ratchet plate, lock pawl and contacts torsion spring, and described ratchet plate is rotationally connected
On described hook, described lock pawl is articulated with on described hook, and described contact torsion spring is arranged at described lock pawl and described extension
Between hook, it is used for forcing described lock pawl to keep contacting with described ratchet plate；Wheel teeth portion, wire it is provided with on described ratchet plate
Contact site and wire lock portion, described teeth portion of taking turns contacts with described lock pawl, when described wire enters described hook, first connects
Touching described conductor contact, drive described ratchet plate to rotate, the most described wire lock portion gradually closes described hooking slits.
While this structure can be implemented in wire entrance wire clip body, carry out the locking of blocking device, can settle at one go, and
Need not substep carry out, there is simple in construction, be active in one's movements and maneuverable feature.
As improvement, described ratchet plate is two panels, is rotationally connected with described hook both sides respectively and keeps synchronous axial system.
The main intensity increasing blocking device, makes wire locking relatively reliable.
As improving further, being provided with spacing contiguous block described in two panels between ratchet plate, described spacing contiguous block is positioned at
Outside described hook, described hook can be contacted when described ratchet plate rotates, for limiting the rotational angle of described ratchet plate；
Described spacing contiguous block is additionally operable to ratchet plate described in affixed two panels makes it keep synchronous axial system.The most this attachment structure is installed
Simple and convenient, on the other hand ratchet plate can be avoided to turn over head, time blocking device structure relatively reliable.
As preferably, described lock pawl being provided with unblock suspension ring, described unblock suspension ring are used for connecting insulating cord, lead
Draw described unblock suspension ring, and then pull described lock pawl, make described lock pawl depart from described ratchet plate, it is achieved to unlock, in order to
Described wire exits described hook.Have only to lifting unblock suspension ring just can complete to unlock, operate easily.
As preferably, described conductor contact and described wire lock portion form V-type opening, at described blocking device
When unlocking condition, described V-type opening and described hooking slits are through, to allow described wire to enter described hook,
When described blocking device is in blocking, described V-type opening and described hooking slits intersect, and are formed and accommodate described wire
Closing space, exit described hook limiting described wire.This structure can preferably realize unblanking and locking.
As the improvement to wire clip body, described hook includes two half hooks in specular, two described semi-mounteds
Hook is bolted into a single integrated structure.This structure assembles and maintenance is the most more convenient.
As preferably, form pockets between described half hook, be used for accommodating described tongue piece and described tension spring.
Time overall structure the compactest reliably.
As improvement, described hook is additionally provided with spacing preiection, for limiting the initial position of described tongue piece.Ensure
Before wire enters, tongue piece position keeps constant, facilitates the entrance of wire.
As preferably, described hook being also associated with install bolt, described installation bolt is positioned at described hook afterbody, uses
In connecting dead earth copper cash.
Compared with prior art, it is an advantage of the current invention that: ratchet back-stop mechanism is a kind of Unidirectional movement mechanism, is used in
Can effectively realize wire " only import but no export " on wire clamp, i.e. solve existing earthing clamp and may skid off the risk of wire.
The Curve guide impeller of ratchet plate simultaneously, it is possible to achieve while wire enters wire clip body, carry out the locking of blocking device, can
To settle at one go, carry out without substep, there is simple in construction, be active in one's movements and maneuverable feature.
Accompanying drawing explanation
Fig. 1 is perspective view (unlocking condition) according to a preferred embodiment of the present invention；
Fig. 2 is perspective view (blocking) according to a preferred embodiment of the present invention；
Fig. 3 is decomposing state schematic diagram according to a preferred embodiment of the present invention；
Fig. 4 is the internal structure schematic diagram of middle according to a preferred embodiment of the present invention wire clip body；
Fig. 5 is the explosive view of middle according to a preferred embodiment of the present invention blocking device；
Fig. 6 is the plan view of middle according to a preferred embodiment of the present invention ratchet plate；
Fig. 7, Fig. 8, Fig. 9 are state change schematic diagrams fashionable at wire card according to a preferred embodiment of the present invention,
Wherein Fig. 7 is original state, and Fig. 8 is entrance state, and Fig. 9 is completion status.
Detailed description of the invention
Hereinafter describe and be used for disclosing the present invention so that those skilled in the art are capable of the present invention.Below describe in excellent
Select embodiment to be only used as citing, it may occur to persons skilled in the art that other obvious modification.
As shown in figs. 1 to 6, one embodiment of the present of invention includes wire clip body 100 and blocking device 200.It is concrete
Structure is as follows:
Wire clip body 100: include a hook 1, is movably connected in two tongue pieces 2 inside hook 1, and is arranged on extension
Two tension springs 3 between hook 1 and tongue piece 2.Hook 1 is formed by connecting by bolt 13 by two and half hook 1a.Wherein,
Form pockets 11 between half hook 1a, be used for accommodating tongue piece 2 and tension spring 3.It is additionally provided with spacing on hook 1
Protruding 12, for limiting the initial position of tongue piece 2.
Blocking device 200: including ratchet plate 4, lock pawl 6 and contact torsion spring 7, ratchet plate 4 is rotationally connected with hook
On 1, lock pawl 6 is articulated with on hook 1, and contact torsion spring 7 is arranged between lock pawl 6 and hook 1, is used for only forcing
Pawl 6 keeps contacting with ratchet plate 4.Wheel teeth portion 41, conductor contact 42 and wire lock portion it is provided with on ratchet plate 4
43, wheel teeth portion 41 contacts with lock pawl 6, when wire 300 enters hook 1, and first contact wire contact site 42, drive
Ratchet plate 4 rotates, and wire lock portion 43 gradually closes hook 1 opening simultaneously.Wherein, ratchet plate 4 is two panels, respectively
It is rotationally connected with hook 1 both sides and keeps synchronous axial system.Spacing contiguous block 5, spacing company it is provided with between two panels ratchet plate 4
Connect block 5 to be positioned at outside hook 1, hook 1 can be contacted when ratchet plate 4 rotates, for limiting the rotational angle of ratchet plate 4；
Spacing contiguous block 5 is additionally operable to affixed two panels ratchet plate 4 makes it keep synchronous axial system.Unblock suspension ring 8 it are provided with on lock pawl 6,
Unlock suspension ring 8 to be used for pulling lock pawl 6, make lock pawl 6 depart from ratchet plate 4, it is achieved unlock, in order to wire 300 exits
Hook 1.Unlock suspension ring 8 and can connect insulating cord, to realize unlocking at a distance.
It is noted that conductor contact 42 and wire lock portion 43 can be set to opening of the matrixs such as U-shaped, V-type
Mouthful, but in the present embodiment, conductor contact 42 and wire lock portion 43 form V-type opening, are at blocking device 200
During unlocking condition, V-type opening and hook 1 opening are through, to allow wire 300 to enter hook, at blocking device 200
When being in blocking, V-type opening and hook 1 opening intersect, and form the closing space accommodating wire 300, lead to limit
Line 300 exits hook.
It addition, be also associated with on hook 1 installing bolt 9, bolt 9 be installed and be positioned at hook 1 afterbody, be used for connecting admittedly
Determine ground connection copper cash.To meet the use requirement under various operating mode.
It is as shown in Figs. 7-9 that the wire 300 of the present embodiment snaps in process: when wire 300 enters wire clip body 100,
First contact tongue 2, compresses tension spring 3, and tongue piece 2 opens to both sides, and wire 300 progresses into hook 1, until leading
Line 300 contact wire contact site 42, drives ratchet plate 4 to rotate, and wire lock portion 43 gradually closes hook 1 opening simultaneously,
Until wire 300 is completely into hook 1, wire 300 is stuck between ratchet plate 4 and hook 1, and lock pawl 6 will simultaneously
Ratchet plate 4 is locked, it is ensured that wire 300 will not skid off, it is achieved snapping in completely closed of wire 300.
It addition, wire 300 departs from the process the most very simple and fast of the present embodiment: only need to pull unblock suspension ring 8, make
Lock pawl 6 departs from ratchet plate 4, promotes hook 1, makes wire 300 contact wire lock portion 43, drives ratchet plate 4 to rotate,
Until wire 300 skids off from V-type opening, then go out from linking up with 1 opening, complete to exit process.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
The personnel simply present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description
Principle, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, these change and
Improvement both falls within the range of claimed invention.The protection domain of application claims by appending claims and
Equivalent defines.
Claims (10)
1. there is a short circuit earthing clamp for locking anti-loose function, including wire clip body and blocking device, described wire clamp
Body includes a hook, is movably connected in two tongue pieces inside described hook, and be arranged on described hook and described tongue piece it
Between two tension springs, it is characterised in that: described blocking device is ratchet back-stop mechanism, this ratchet back-stop mechanism allow wire
Enter described wire clip body, and limit described wire and exit described wire clip body.
The short circuit earthing clamp with locking anti-loose function the most according to claim 1, it is characterised in that: described
Blocking device includes ratchet plate, lock pawl and contacts torsion spring, and described ratchet plate is rotationally connected with on described hook, described stop
Pawl is articulated with on described hook, and described contact torsion spring is arranged between described lock pawl and described hook, is used for forcing described stopping
Pawl keeps contacting with described ratchet plate；
It is provided with wheel teeth portion, conductor contact and wire lock portion on described ratchet plate, described takes turns teeth portion and described lock pawl connects
Touch, when described wire enters described hook, first contact described conductor contact, drive described ratchet plate to rotate, simultaneously institute
State wire lock portion and gradually close described hooking slits.
The short circuit earthing clamp with locking anti-loose function the most according to claim 2, it is characterised in that: described
Ratchet plate is two panels, is rotationally connected with described hook both sides respectively and keeps synchronous axial system.
The short circuit earthing clamp with locking anti-loose function the most according to claim 3, it is characterised in that: two panels
Being provided with spacing contiguous block between described ratchet plate, described spacing contiguous block is positioned at outside described hook, turns at described ratchet plate
Described hook can be contacted, for limiting the rotational angle of described ratchet plate time dynamic；Described spacing contiguous block is additionally operable to affixed two panels
Described ratchet plate makes it keep synchronous axial system.
The short circuit earthing clamp with locking anti-loose function the most according to claim 2, it is characterised in that: described
Being provided with unblock suspension ring on lock pawl, described unblock suspension ring are used for connecting insulating cord, to unlock described in tractive suspension ring, Jin Erla
Dynamic described lock pawl, makes described lock pawl depart from described ratchet plate, it is achieved to unlock, in order to described wire exits described hook.
The short circuit earthing clamp with locking anti-loose function the most according to claim 2, it is characterised in that: described
Conductor contact and described wire lock portion form V-type opening, when described blocking device is in unlocking condition, described V
Type opening and described hooking slits are through, to allow described wire to enter described hook, are in latch like at described blocking device
During state, described V-type opening and described hooking slits intersect, and form the closing space accommodating described wire, lead described in limiting
Line exits described hook.
7. according to the short circuit earthing clamp with locking anti-loose function described in claim 1 to 6 any claim,
It is characterized in that: described hook includes that two half hooks in specular, two described half hooks are bolted into one
Body structure.
The short circuit earthing clamp with locking anti-loose function the most according to claim 7, it is characterised in that: described
Form pockets between half hook, be used for accommodating described tongue piece and described tension spring.
The short circuit earthing clamp with locking anti-loose function the most according to claim 8, it is characterised in that: described
Spacing preiection it is additionally provided with, for limiting the initial position of described tongue piece on hook.
The short circuit earthing clamp with locking anti-loose function the most according to claim 9, it is characterised in that: described
Being also associated with on hook installing bolt, described installation bolt is positioned at described hook afterbody, is used for connecting dead earth copper cash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610363122.6A CN105932445B (en) | 2016-05-21 | 2016-05-21 | A kind of short circuit earthing clamp with locking anti-loose function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610363122.6A CN105932445B (en) | 2016-05-21 | 2016-05-21 | A kind of short circuit earthing clamp with locking anti-loose function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105932445A true CN105932445A (en) | 2016-09-07 |
| CN105932445B CN105932445B (en) | 2018-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610363122.6A Active CN105932445B (en) | 2016-05-21 | 2016-05-21 | A kind of short circuit earthing clamp with locking anti-loose function |
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| CN (1) | CN105932445B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707452A (en) * | 2019-10-16 | 2020-01-17 | 国网山东省电力公司枣庄供电公司 | Throwing-hanging type grounding device |
| CN112350086A (en) * | 2020-11-30 | 2021-02-09 | 中国南方电网有限责任公司超高压输电公司南宁局 | Cross locking type anti-drop grounding wire clamp for power line |
| CN116470309A (en) * | 2023-06-20 | 2023-07-21 | 广东电网有限责任公司佛山供电局 | Grounding device and grounding rod |
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| CN205790463U (en) * | 2016-05-21 | 2016-12-07 | 宁波天弘电力器具有限公司 | A kind of short circuit earthing clamp with locking anti-loose function |
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| CN202004295U (en) * | 2011-01-05 | 2011-10-05 | 建德市万家电器电缆有限公司 | Ratchet self-locking type accumulator charging cable |
| JP2013026071A (en) * | 2011-07-22 | 2013-02-04 | Chugoku Electric Power Co Inc:The | Earth hook |
| CN102509911A (en) * | 2011-11-04 | 2012-06-20 | 上海市电力公司 | Automatic wire clamp for portable short-circuit ground wire |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707452A (en) * | 2019-10-16 | 2020-01-17 | 国网山东省电力公司枣庄供电公司 | Throwing-hanging type grounding device |
| CN112350086A (en) * | 2020-11-30 | 2021-02-09 | 中国南方电网有限责任公司超高压输电公司南宁局 | Cross locking type anti-drop grounding wire clamp for power line |
| CN112350086B (en) * | 2020-11-30 | 2021-11-23 | 中国南方电网有限责任公司超高压输电公司南宁局 | Cross locking type anti-drop grounding wire clamp for power line |
| CN116470309A (en) * | 2023-06-20 | 2023-07-21 | 广东电网有限责任公司佛山供电局 | Grounding device and grounding rod |
| CN116470309B (en) * | 2023-06-20 | 2024-01-23 | 广东电网有限责任公司佛山供电局 | Grounding device and grounding rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105932445B (en) | 2018-04-03 |
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