CN109884577A - A kind of dedicated tooth of Ammeter Test instrument stings testing clamp - Google Patents
A kind of dedicated tooth of Ammeter Test instrument stings testing clamp Download PDFInfo
- Publication number
- CN109884577A CN109884577A CN201910280912.1A CN201910280912A CN109884577A CN 109884577 A CN109884577 A CN 109884577A CN 201910280912 A CN201910280912 A CN 201910280912A CN 109884577 A CN109884577 A CN 109884577A
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- Prior art keywords
- clamp
- tooth
- tong arm
- screw
- pair
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Abstract
The invention discloses a kind of dedicated teeth of Ammeter Test instrument to sting testing clamp, including a pair of of clamp handle, tong arm and the axis for being rotatablely connected a pair of of tong arm, the top of a pair of of tong arm is equipped with binding clip, several upper clamp tooths and lower clamp tooth that can be mutually twisted are respectively equipped on the inside of the binding clip of two sides, tooth socket is equipped between two adjacent upper clamp tooths, two adjacent lower clamp tooths are located in tooth socket, and two lower clamp tooths are symmetrical arranged about the middle line of tooth socket, the inside of a pair of of tong arm is equipped with the nipper and rear tooth being mutually twisted, lead-out wire is connected on tong arm, screw is clamped by the one side wall of the two sidewalls of tooth socket and two lower clamp tooths, there are four the stress points for making screw, and uniform force, screw will not run when making tong arm to screw-clamped, skew will not occur for tong arm, using laborsaving, to the good fixing effect of screw.
Description
Technical field
The present embodiments relate to technical field of electrical equipment, and in particular to a kind of dedicated tooth of Ammeter Test instrument stings test
Pincers.
Background technique
Test of kilo watthour meter instrument is the industrial frequency AC electrical parameter for verifying various single phase industrial frequence electric energy meters and measurement routine
Instrument and equipment, also have the function of to measure voltage, the virtual value of electric current, active power, phase angle, work frequency etc., answer extensively
For power supply company's electric energy measurement center, power plant's measuring room, industrial enterprise's measuring room or energy management department, electric power meter equipment
Research and development department, production division and the metrological service of manufacturing enterprise.
The pincers of head end test provisioned in existing Ammeter Test instrument are generally tiger's jaw, upper end list tooth triangle jaw and lower end
Double dental forceps mouth tight connectings, it is therefore an objective to during the test can clamping screw, although triangle have certain stability,
Be due to clip own wt is heavier, usually have skew in addition be difficult to press from both sides steady situation because place clip
During, the upper age of a draught animal will not be deliberately placed in position perpendicular to the ground by operating personnel, generally need to attempt in practice repeatedly
It could press from both sides surely, be not easy to operation development, waste a large amount of unnecessary activity durations and step.
Summary of the invention
For this purpose, the embodiment of the present invention, which provides a kind of dedicated tooth of Ammeter Test instrument, stings testing clamp, with solve in the prior art by
In testing clamp to screw-clamped built on the sand caused by tong arm occur skew, screw is run and problem laborious to use.
To achieve the goals above, embodiments of the present invention provide the following technical solutions: a kind of Ammeter Test instrument is dedicated
Tooth stings testing clamp, and including a pair of of clamp handle, tong arm and the axis for being rotatablely connected a pair of of tong arm, the top of a pair of tong arm is equipped with
Binding clip is respectively equipped with several mutually engageable upper clamp tooths and lower clamp tooth, two adjacent institutes on the inside of binding clip described in two sides
State and be equipped with tooth socket between upper clamp tooth, two adjacent lower clamp tooths are located in the tooth socket, and two lower clamp tooths about
The middle line of the tooth socket is symmetrical arranged, and the inside of a pair of tong arm is equipped with intermeshing nipper and rear tooth, on the tong arm
It is connected with lead-out wire.
Further, when a pair of upper clamp tooth and the lower clamp tooth are engaged, a pair of upper clamp tooth and the lower pincers
Tooth forming at closure and rule diamond hole.
Further, arc groove is equipped on the inside of tong arm middle section described in two sides.
Further, insulating gum cover is arranged on the clamp handle and tong arm.
Further, it is fixedly connected between the insulating gum cover and clamp handle and tong arm by screw.
Further, the outside in clamp handle middle section described in two sides is in the arc being recessed inwardly.
Further, the inside of the clamp handle is equipped with groove, and the end of clamp handle is perforated equipped with lead-out wire, the lead-out wire
It perforates through the lead-out wire and is electrically connected with tong arm.
Further, the other end of the lead-out wire is equipped with connector.
Embodiments of the present invention have the advantages that
(1) the upper end two sides of screw are abutted with the two sidewalls of tooth socket, the lower end two sides of screw respectively with two sides lower clamp tooth
Side wall abut, so that the stress point for contacting screw with tong arm becomes more stable four from traditional three, set in this way
The advantages of setting is that two sides tong arm passes through upper clamp tooth and lower clamp tooth and screw two-point contact respectively, avoids and connects with screw single-point
That side tong arm of touching is easy to that the drawback of skew occurs when being clamped screw.
(2) traditional testing clamp is when clamping screw, due to passing through single tooth triangle jaw to screw-clamped, and singly
The contact surface of tooth triangle jaw and screw is small, and screw, which is run, in order to prevent needs to apply bigger clamping force, not only arduously,
And screw is easy coverlet tooth triangle jaw and extrudes groove mark equivalent damage, causes screw to be easy to be corroded, to the service life of screw
It adversely affects, and screw is clamped in the diamond hole of rule, when being clamped to screw, upper clamp tooth and lower clamp tooth point
It is other to screw apply inwardly diagonally downward and the power that tilts upward inwardly, so that screw is automatically held in diamond hole
At center, screw, which is clamped in diamond hole, to be swung, and be conducive to keep steady screw clamp solid, rapid operation will not be right
Screw causes to damage.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
The term of cited such as "upper", "lower", "left", "right", " centre ", is merely convenient to describe in this specification
Be illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is tong head schematic diagram of the invention.
In figure:
1- clamp handle；2- tong arm；3- axis；4- upper clamp tooth；5- lower clamp tooth；6- tooth socket；7- nipper；Tooth after 8-；9- lead-out wire；
10- diamond hole；11- arc groove；12- insulating gum cover；The perforation of 13- lead-out wire；14- connector；
201- binding clip.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, the present invention provides a kind of dedicated teeth of Ammeter Test instrument to sting testing clamp, including a pair of of clamp handle
1, the axis 3 of tong arm 2 and a pair of of tong arm 2 of rotation connection, the top of a pair of tong arm 2 are equipped with binding clip 201, clamp described in two sides
First 201 inside is respectively equipped with several upper clamp tooths 4 and lower clamp tooth 5 that can be mutually twisted, the upper clamp tooth 4 of adjacent two it
Between be equipped with tooth socket 6, the lower clamp tooth 5 of adjacent two is located in the tooth socket 6, and two lower clamp tooths 5 are about the tooth
The middle line of slot 6 is symmetrical arranged, after a pair of upper clamp tooth 4 and the lower clamp tooth 5 are engaged, a pair of upper clamp tooth 4 and it is described under
The diamond hole 10 that tooth 5 forms closure and rule is clamped, and the inscribed circle diameter of diamond hole 10 is slightly less than the screw to be clamped
Diameter.
A pair of of clamp handle 1 and the tong arm 2 for being connected to 1 head one end of clamp handle are intersected and are rotatablely connected by axis 2, need by
When screw is clamped, keeps the tail end of the clamp handle 1 of two sides close to each other by external force, to keep two sides tong arm 2 close to each other, and pass through
Binding clip 201 on two sides tong arm 2 carries out clamping to screw and fixes, and particularly passes through occlusion mutual on two sides binding clip 201
Screw-clamped is located at screw in diamond hole 10 by upper clamp tooth 4 and lower clamp tooth 5, passes through upper end list tooth triangle compared to traditional
The double dental forceps tones of jaw and lower end, which are closed, carrys out clamping screw, and screw is clamped by the method in diamond hole 10, makes the upper of screw
End two sides are abutted with the two sidewalls of tooth socket 6, and the lower end two sides of screw are abutted with the side wall of two sides lower clamp tooth 5 respectively, to make spiral shell
The stress point that silk is contacted with tong arm 2 becomes more stable four from traditional three, has the advantage that in this way, two sides pincers
Arm 2 by upper clamp tooth 4 and lower clamp tooth 5 and screw two-point contact, avoids and exists with that side tong arm of screw single-contact respectively
It is easy to that the drawback of skew occurs when being clamped screw.
Also, it is clamped in the diamond hole 10 of rule due to screw, when being clamped to screw, upper clamp tooth 4 and lower pincers
Tooth 5 respectively to screw apply inwardly diagonally downward and the power that tilts upward inwardly, so that screw is automatically held in water chestnut
At the center in shape hole 10, screw, which is clamped in diamond hole 10, to be swung, and be conducive to keep steady screw clamp solid, compared to tradition
Clamp method, when avoiding single tooth triangle jaw to screw-clamped, due to small with the contact surface of screw, and prevent screw
It runs and needs to apply bigger clamping force, not only arduously, and screw is easy coverlet tooth triangle jaw and extrudes groove mark equivalent damage, causes
Screw is easy to be corroded, and adversely affects to the service life of screw.
It needs to carry out " examination folder " step when in use compared to traditional testing clamp to ensure that testing clamp can clamp screw
It is firm, reduce extra operating process and should not time waste.
In addition, the inside of a pair of tong arm 2 is equipped with the nipper 7 and rear tooth 8 being mutually twisted, and in tong arm 2 described in two sides
The inside of section is equipped with arc groove 11, and the nipper 7 and rear tooth 8 of occlusion can be used for the rotary parts such as clamping screw, arc groove
11 increase the clamping range of a pair of of tong arm 2, and when clamping to the object that profile is larger or diameter is thicker, can be avoided
Clamped article skids off between a pair of of tong arm 2.
Also, insulating gum cover 12 is arranged on the clamp handle 1 and tong arm 2, the insulating gum cover 12 of setting can increase use
The comfort of person's gripping clamp handle 1, it is often more important that, the electric current that can be avoided in test article damages human body, and keeps away
Exempt from influence of the static electricity on human body to measurement data, also avoids the corrosion to clamp handle 1 such as human sweat, extend making for testing clamp 1
With the service life, and appearance is more beautiful, and is fixedly connected between the insulating gum cover 12 and clamp handle 1 and tong arm 2 by screw, prevents
Insulating gum cover 12 causes insulating gum cover 12 to fall off with clamp handle 1 and tong arm 2 because of the glue aging etc. expanded with heat and contract with cold or be bonded.
Further, lead-out wire 9 is connected on the tong arm 2, and the other end is equipped with connector 14, lead-out wire 9 is by connecing
First 14 can conveniently and efficiently connect to relevant instrument and equipment.
Preferably, the inside of the clamp handle 1 is equipped with the groove for 9 potting of lead-out wire, and the end of clamp handle 1 is equipped with
It is connected to the lead-out wire perforation 13 of groove, one end of the lead-out wire 9 passes through lead-out wire perforation 13 and is electrically connected with tong arm 2, will draw
9 potting of outlet in the trench, and is oriented to by lead-out wire perforation 13, not only beautiful, and avoids the shadow in a jumble of lead-out wire 9
Ring operator's operation etc..
Preferably, the outside in 1 middle section of clamp handle described in two sides is in the arc being recessed inwardly, convenient for users to holding,
And prevent when gripping clamp handle 1 is had an effect, hand is slided along clamp handle 1 to 2 direction of tong arm.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (8)
1. a kind of dedicated tooth of Ammeter Test instrument stings testing clamp, including a pair of of clamp handle (1), a pair of of tong arm (2) and rotation connection a pair
The axis (3) of tong arm (2), which is characterized in that the top of a pair of tong arm (2) is equipped with binding clip (201), two binding clips
(201) several intermeshing upper clamp tooths (4) and lower clamp tooth (5), two adjacent upper clamp tooths are respectively equipped on the inside of
(4) tooth socket (6) are equipped between, the lower clamp tooth (5) of adjacent two is located in the tooth socket (6), and two lower clamp tooths
(5) be symmetrical arranged about the middle line of the tooth socket (6), the inside of the pair of tong arm (2) be equipped with intermeshing nipper (7) and
Tooth (8) afterwards are connected with lead-out wire (9) on the tong arm (2).
2. a kind of dedicated tooth of Ammeter Test instrument according to claim 1 stings testing clamp, which is characterized in that when the upper clamp tooth
(4) when and the lower clamp tooth (5) is engaged, a pair of upper clamp tooth (4) and the lower clamp tooth (5) form closure and regular
Diamond hole (10).
3. a kind of dedicated tooth of Ammeter Test instrument according to claim 1 stings testing clamp, which is characterized in that tong arm described in two sides
(2) arc groove (11) are equipped on the inside of middle section.
4. a kind of dedicated tooth of Ammeter Test instrument according to claim 1 stings testing clamp, which is characterized in that the clamp handle (1)
With insulating gum cover (12) are arranged on tong arm (2).
5. a kind of dedicated tooth of Ammeter Test instrument according to claim 4 stings testing clamp, which is characterized in that the insulating gum cover
(12) it is fixedly connected between clamp handle (1) and tong arm (2) by screw.
6. a kind of dedicated tooth of Ammeter Test instrument according to claim 1 stings testing clamp, which is characterized in that clamp handle described in two sides
(1) outside in middle section is in the arc being recessed inwardly.
7. a kind of dedicated tooth of Ammeter Test instrument according to claim 1 stings testing clamp, which is characterized in that the clamp handle (1)
Inside be equipped with groove, and the end of clamp handle (1) be equipped with lead-out wire perforation (13), the lead-out wire (9) run through the lead-out wire
It perforates (13), and the lead-out wire (9) and tong arm (2) are electrically connected.
8. a kind of dedicated tooth of Ammeter Test instrument according to claim 1 stings testing clamp, which is characterized in that the lead-out wire
(9) the other end is equipped with connector (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910280912.1A CN109884577A (en) | 2019-04-09 | 2019-04-09 | A kind of dedicated tooth of Ammeter Test instrument stings testing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910280912.1A CN109884577A (en) | 2019-04-09 | 2019-04-09 | A kind of dedicated tooth of Ammeter Test instrument stings testing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109884577A true CN109884577A (en) | 2019-06-14 |
Family
ID=66936559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910280912.1A Pending CN109884577A (en) | 2019-04-09 | 2019-04-09 | A kind of dedicated tooth of Ammeter Test instrument stings testing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109884577A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1413353A (en) * | 1973-02-08 | 1975-11-12 | Ici Ltd | Clamp |
| CN201776706U (en) * | 2010-09-03 | 2011-03-30 | 马沛乐 | Vise |
| CN201776707U (en) * | 2010-09-03 | 2011-03-30 | 马沛乐 | Long flat nose pliers |
| US20130160615A1 (en) * | 2009-05-25 | 2013-06-27 | Engineer Inc. | Plier |
| CN203561650U (en) * | 2013-10-22 | 2014-04-23 | 国家电网公司 | Testing clamp preventing contact of measurement terminals |
| CN204142774U (en) * | 2014-10-28 | 2015-02-04 | 国网山东省电力公司聊城供电公司 | Handcart type breaker circuit resistance tester |
| CN207953622U (en) * | 2018-02-09 | 2018-10-12 | 杭州巨星科技股份有限公司 | A kind of clamp |
| CN208367094U (en) * | 2018-06-20 | 2019-01-11 | 中车洛阳机车有限公司 | One kind crimping measuring contact resistance special vice with line ear for the big line of locomotive |
| CN208477048U (en) * | 2018-08-10 | 2019-02-05 | 广东电网有限责任公司 | Lightning arrester discharge tester |
| CN209784520U (en) * | 2019-04-09 | 2019-12-13 | 广东电网有限责任公司 | Special tooth of ammeter check gauge is stung and is tested pincers |
-
2019
- 2019-04-09 CN CN201910280912.1A patent/CN109884577A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1413353A (en) * | 1973-02-08 | 1975-11-12 | Ici Ltd | Clamp |
| US20130160615A1 (en) * | 2009-05-25 | 2013-06-27 | Engineer Inc. | Plier |
| CN201776706U (en) * | 2010-09-03 | 2011-03-30 | 马沛乐 | Vise |
| CN201776707U (en) * | 2010-09-03 | 2011-03-30 | 马沛乐 | Long flat nose pliers |
| CN203561650U (en) * | 2013-10-22 | 2014-04-23 | 国家电网公司 | Testing clamp preventing contact of measurement terminals |
| CN204142774U (en) * | 2014-10-28 | 2015-02-04 | 国网山东省电力公司聊城供电公司 | Handcart type breaker circuit resistance tester |
| CN207953622U (en) * | 2018-02-09 | 2018-10-12 | 杭州巨星科技股份有限公司 | A kind of clamp |
| CN208367094U (en) * | 2018-06-20 | 2019-01-11 | 中车洛阳机车有限公司 | One kind crimping measuring contact resistance special vice with line ear for the big line of locomotive |
| CN208477048U (en) * | 2018-08-10 | 2019-02-05 | 广东电网有限责任公司 | Lightning arrester discharge tester |
| CN209784520U (en) * | 2019-04-09 | 2019-12-13 | 广东电网有限责任公司 | Special tooth of ammeter check gauge is stung and is tested pincers |
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