CN206671425U - A kind of open-and-close mechanism of pliers-shape earthing resistance instrument - Google Patents
A kind of open-and-close mechanism of pliers-shape earthing resistance instrument Download PDFInfo
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- CN206671425U CN206671425U CN201720436986.6U CN201720436986U CN206671425U CN 206671425 U CN206671425 U CN 206671425U CN 201720436986 U CN201720436986 U CN 201720436986U CN 206671425 U CN206671425 U CN 206671425U
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- clamp arm
- arc plate
- housing
- iron core
- breach
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Abstract
The utility model discloses a kind of open-and-close mechanism of pliers-shape earthing resistance instrument, its drip irrigation device is to include housing, left clamp arm and right clamp arm are rotatably connected in housing, left clamp arm is used to install left iron core, right clamp arm is used to install right iron core, end set of the left clamp arm away from housing has the left arc plate towards the arc of right setting, end set of the right clamp arm away from housing has the right arc plate towards the arc of left setting, the left end of the right-hand member of left arc plate and right arc plate mutually abuts cooperation, after left arc plate and right arc plate abut, left iron core and right iron core are interconnected to the mutual inductance iron core of a closure, being provided with housing makes left clamp arm and right clamp arm have the slew gear of the trend rotated in opposite directions；When earth wire is detected, then tester is pushed or detached in the position for directly abutting left arc plate and right arc plate to ground wire against ground wire, it is not necessary to and first jaw is opened and puts or exit ground wire into jaw again, it is simple to operate.
Description
Technical field
A kind of earth resistance tester is the utility model is related to, more specifically, it relates to a kind of pliers-shape earthing resistance instrument
Open-and-close mechanism.
Background technology
Grounding resistance is that electric current flows into the earth again through greatly flowing to another grounding body or distally spreading institute by earthing or grounding means
The resistance run into, grounding resistance embody electric device and the good degree greatly contacted and the scale of reflection grounded screen.
The measuring method of grounding resistance have it is a variety of, and pliers-shape earthing resistance instrument measurement have the earthed system in loop when, no
Down conductor need to be disconnected, is not required to auxiliary electrode, safely and fast, easy to use, survey of the pliers-shape earthing resistance instrument in grounding resistance
Application in amount is more and more wider, and when using pliers-shape earthing resistance instrument, pulloff opens jaw, and ground wire is placed in into jaw
Interior, unclamping trigger closes transformer iron core, you can carries out the test of grounding resistance.
But when continually testing multiple ground wires, it is also desirable to which continually pulloff opens jaw, together
When operating personnel hand be also required to expend a large amount of strength so that operating personnel feel when carrying out the switching action of multiple jaw
It is tired.
Utility model content
The purpose of this utility model is to provide a kind of open-and-close mechanism of pliers-shape earthing resistance instrument, and having directly can push away jaw
To ground wire, make ground connection line tweezer in jaw, without first opening the advantages of jaw places ground wire again.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of pincerlike grounding resistance
The open-and-close mechanism of instrument, including housing, left clamp arm and right clamp arm are rotatably connected in the housing, and the left clamp arm is used to install a left side
Iron core, the right clamp arm are used to install right iron core, and end set of the left clamp arm away from housing has towards the arc of right setting
Left arc plate, end set of the right clamp arm away from housing have the right arc plate towards the arc of left setting, the right-hand member of the left arc plate
Cooperation is mutually abutted with the left end of right arc plate, after the left arc plate and right arc plate abut, left iron core and right iron core are interconnected to
The mutual inductance iron core of one closure, being provided with the housing makes left clamp arm and right clamp arm have the turn-around machine of the trend rotated in opposite directions
Structure.
By using above-mentioned technical proposal, after left arc plate and right arc plate abut, left iron core and right iron core are interconnected to
One closure mutual inductance iron core, can be placed in mutual inductance iron core ground wire carry out grounding resistance test, need by
When ground wire is put into mutual inductance iron core, the position for directly abutting left arc plate and right arc plate is against ground wire, then by tester
Push to be grounded, after ground wire props up left arc plate and right arc plate, left arc plate and right arc plate are pushed open toward opposite direction, are grounded
Line is smoothly entered in the jaw of tester, after being grounded and entering jaw, the effect of left clamp arm and right clamp arm in slew gear
Under, left clamp arm and right clamp arm rotate in opposite directions, until left arc plate and right arc plate abut again, when needing to fetch tester, directly
Connect and draw back tester, ground wire can prop up left arc plate and right arc plate, and arc plate and right arc plate are pushed away toward opposite direction, draw back test
After instrument, left arc plate and right arc plate are returned to initial position in the presence of slew gear, when earth wire is detected, are not required to
First jaw to be opened and put or exit ground wire into jaw again, directly detector can pushed to or detach ground wire, operation letter
Folk prescription is just.
Preferably, the slew gear includes left wind spring and right wind spring, and the housing rotates with left clamp arm and right clamp arm to be connected
The place of connecing is each provided with left mounting groove and right mounting groove, and the left clamp arm is provided with left installation axle with housing into rotation junction, described
Left installation axle is rotationally connected with the bottom of left mounting groove, and the right clamp arm is provided with right installation axle, institute with housing into rotation junction
The bottom that right installation axle is rotationally connected with right mounting groove is stated, it is fixed between the cell wall of the left mounting groove and the axle side of left installation axle
Left wind spring is installed, right wind spring is installed between the cell wall of the right mounting groove and the axle side of right installation axle.
By using above-mentioned technical proposal, left wind spring makes left clamp arm have the trend to turn right, and right wind spring has right clamp arm
The trend to turn left so that the trend that left arc plate and right arc plate have move toward one another and mutually abutted, tester is pushed to or
When detaching ground wire, it is grounded and pushes left arc plate and right arc plate to both sides, afterwards in the presence of left wind spring and right wind spring, left arc
Plate and right arc plate are returned to original position, and left iron core and right iron core is interconnected to the mutual inductance iron core of a closure, side
Just the test of grounding resistance.
Preferably, the left clamp arm has left fan tooth in its end set being connected with housing into rotation, and the right clamp arm is at it
The end set being connected with housing into rotation has right wing tooth, and the left fan tooth and right wing tooth are in be oppositely arranged, and are intermeshed.
By using above-mentioned technical proposal, make left fan tooth and right wing tooth intermeshing, when rotating left clamp arm or right clamp arm,
Right clamp arm or left clamp arm can also be rotated in the opposite direction with identical angular speed, when opening jaw, left clamp arm and right clamp arm
Opened, reduced because the opening of jaw deviates the center line of tester so that become the embedded jaw of ground wire with identical amplitude
Inconvenient situation, and when closing jaw, left clamp arm and right clamp arm are closed with identical amplitude, and left arc plate and right arc plate
The position mutually abutted against is located on the center line of tester, facilitates the use for tester of operating personnel, and due to left fan
The engagement of tooth and right wing tooth coordinates, left clamp arm and right clamp arm will not simultaneously toward a side oscillation of tester, reduce in left wind spring and
When the elastic force of right wind spring is inconsistent, situation that left clamp arm and right clamp arm can be amesiality.
Preferably, the left clamp arm is provided with axle center and the gear of the axis coinciding of left fan tooth, the interior company of slip of the housing
The rack for engaging and coordinating with gear is connected to, the left end of the rack is piercing in housing.
By using above-mentioned technical proposal, occurring, ground wire is relatively soft, when being not suitable for that ground connection line tweezer directly is entered into jaw,
Pressable rack protrudes from the part of housing, and rack is turned right promotion, and at this moment rack drives gear is toward the direction for opening jaw
Rotate, so as to open jaw, ground connection line tweezer can be entered in jaw, unclamp rack, in the presence of the right wind spring of left wind spring, jaw
Closure, can carry out the test of grounding resistance.
Preferably, chute is provided with the housing, the rack is slidably connected to chute.
By using above-mentioned technical proposal, chute is oriented to the direction of motion of the rack in housing, is reduced and is being utilized
When rack opens jaw, rack shakes and causes the engagement of gear and rack to become not closely, and to cause rack not
The situation of jaw can normally be opened.
Preferably, the left end of the rack is provided with block, and the block abuts cooperation with housing close to the side of housing.
By using above-mentioned technical proposal, block increases lifting surface area of the rack outside housing, facilitates operating personnel to press
Rack, while rack is limited toward the distance moved in housing, reducing makes rack because of misoperation completely into housing
Interior, rack is stuck in the situation in housing.
Preferably, the right-hand member of the left arc plate is provided with left breach, and the left end of right arc plate is provided with right breach, described left scarce
Mouth and right breach are mutually inserted cooperation, and the left iron core passes left arc plate, and in left breach, the right iron core passes right arc
Plate, and in right breach, when the left breach and right breach are mutually inserted, left iron core and right iron core are interconnected to one and closed
The mutual inductance iron core of conjunction.
By using above-mentioned technical proposal, when directly pushing to by tester or detaching ground wire, ground wire can be with left arc
Plate and right arc plate abut, and at the same time, ground wire can also be present to abut with left iron core and right iron core, and with left iron core and right iron core
Situation about rubbing, after left breach and right breach is set, left iron core is located in left breach, and right iron core is located in right breach,
Increase when directly pushing to by tester or detaching ground wire, ground wire and the distance between left iron core and right iron core, reduce
The situation that ground wire rubs with left iron core and right iron core.
In summary, the utility model has the advantages that：When needing to put ground wire in mutual inductance iron core into, directly
Connect the position of left arc plate and right arc plate abutting against ground wire, then push to be grounded by tester, left arc plate and right arc plate
Line is grounded to push open toward opposite direction, ground wire is smoothly entered in jaw, after being grounded into jaw, left clamp arm and the right side
In the presence of left wind spring and right wind spring, left clamp arm and right clamp arm rotate tong arm in opposite directions, until left breach and right breach are inserted again
Connect, when needing to fetch tester, directly draw back tester, ground wire can prop up left arc plate and right arc plate, by arc plate and the right side
Arc plate is pushed away toward opposite direction, and after drawing back tester, left arc plate and right arc plate are returned in the presence of left wind spring and again wind spring
Initial position, when earth wire is detected, it is not necessary to first jaw is opened and puts or exit ground wire into jaw again, can be straight
Connect and push or detach detector to ground wire, it is simple to operate.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment；
Fig. 2 is the internal structure schematic diagram of the present embodiment；
Fig. 3 is the structural representation of jaw in opened condition in the present embodiment；
Fig. 4 is along the sectional view of line A-A in Fig. 3.
Reference：1st, housing；201st, left clamp arm；202nd, right clamp arm；301st, left iron core；302nd, right iron core；401st, left arc
Plate；402nd, right arc plate；501st, left wind spring；502nd, right wind spring；601st, left mounting groove；602nd, right mounting groove；701st, left installation axle；
702nd, right installation axle；801st, left fan tooth；802nd, right wing tooth；9th, gear；10th, rack；11st, chute；12nd, block；1301st, it is left to lack
Mouthful；1302nd, right breach；14th, jaw.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
A kind of open-and-close mechanism of pliers-shape earthing resistance instrument, as shown in Figure 1-Figure 3, including housing 1, one section of rotation of housing 1
Left clamp arm 201 and right clamp arm 202 are connected with, left clamp arm 201 is located at the left side of right clamp arm 202, and left clamp arm 201 is used to install left iron
Core 301, right clamp arm 202 are used to install right iron core 302, and end set of the left clamp arm 201 away from housing 1 is shaped as protruding to the right
Arc left arc plate 401, end set of the right clamp arm 202 away from housing 1 have the right arc plate for the arc for being shaped as protruding to the left
402, the right-hand member of left arc plate 401 is provided with left breach 1301, the left end of right arc plate 402 is provided with right breach 1302, left breach
1301 and it is jagged be mutually inserted cooperation, the both ends of left iron core 301 are piercing in left clamp arm 201, wherein one end away from housing 1 is located at
In left breach 1301, the right both ends of iron core 302 are piercing in right clamp arm 202, wherein one end away from housing 1 is located at right breach 1302
Interior, when left breach 1301 and right breach 1302 are mutually inserted, left iron core 301 and right iron core 302 are interconnected to form closing
Mutual inductance iron core, the test of grounding resistance, while the area that left clamp arm 201 and right clamp arm 202 are surrounded can be carried out in mutual inductance iron core
Domain is jaw, and the test of grounding resistance can be carried out in jaw.
As shown in figure 4, the position that housing 1 is rotatablely connected with left clamp arm 201 and right clamp arm 202 is respectively arranged with left mounting groove
601 and right mounting groove 602, the bottom centre of left mounting groove 601 and right mounting groove 602 be respectively rotatably connected to perpendicular to left mounting groove
601 and right mounting groove 602 bottom left installation axle 701 and right installation axle 702, left installation axle 701 is shaped in left clamp arm
201, right installation axle 702 is shaped in right clamp arm 202, and a left side is fixedly connected between left installation axle 701 and left mounting groove 601
Wind spring 501, left wind spring 501 makes left clamp arm 201 have the trend to turn right, between right installation axle 702 and right mounting groove 602
Right wind spring 502 is fixedly connected with, right wind spring 502 makes right clamp arm 202 have the trend to turn left.
As shown in Fig. 2-and 3, tooth 801 is fanned integrally formed with left in left installation axle 701, is integrally formed in right installation axle 702
There is a right wing tooth 802, left fan tooth 801 and right wing tooth 802 intermesh cooperations, and left installation axle 701 is integral in the top of left fan tooth 801
Gear 9 is formed, gear 9 is coaxially disposed with left fan tooth 801, and gear 9 and the left fan synchronous axial system of tooth 801, in the left side of housing 1
The chute 11 set to left and right direction is fixedly installed, rack 10 is slidably connected on chute 11, rack 10 engages with gear 9 matches somebody with somebody
Close, block 12 is fixedly installed in the left end of rack 10.
Specifically used process：When needing to put ground wire in mutual inductance iron core into, directly by left arc plate 401 and right arc plate
Against ground wire then tester is pushed to be grounded, left arc plate 401 and right arc plate are propped up in ground wire in 402 positions abutted
After 402, left arc plate 401 and right arc plate 402 are pushed open toward opposite direction, and ground wire is smoothly entered in the jaw of tester,
After being grounded into jaw, left clamp arm 201 and right clamp arm 202 are in the presence of left wind spring 501 and right wind spring 502, left clamp arm
201 and right clamp arm 202 rotate in opposite directions, until left breach 1301 and the grafting again of right breach 1302, lacked in left breach 1301 and the right side
After 1302 grafting of mouth, left iron core 301 and right iron core 302 are interconnected to a mutual inductance iron core closed, can in mutual inductance iron core
The test of grounding resistance is carried out, when needing to fetch tester, directly draws back tester, ground wire can prop up left arc plate 401
With right arc plate 402, arc plate and right arc plate 402 are pushed away toward opposite direction, after drawing back tester, left clamp arm 201 and right clamp arm 202
Initial position is returned in the presence of left wind spring 501 and right wind spring 502, when earth wire is detected, it is not necessary to first will
Jaw is opened and puts or exit ground wire into jaw again, directly can push detector to or detach ground wire, simple to operate.
Due to left fan tooth 801 and the meshing relation of right wing tooth 802, in open or close jaw, left clamp arm 201 and right pincers
Arm 202 is with identical rotational motion, and in left arc plate 401 and right 402 grafting of arc plate, its plug-in position is placed exactly in tester
On line, and left clamp arm 201 and right clamp arm 202 will not be reduced in left wind spring 501 and right volume simultaneously toward a side oscillation of tester
When the elastic force of spring 502 is inconsistent, left clamp arm 201 and right clamp arm 202 understand amesiality situation.
Occurring, ground wire is relatively soft, when being not suitable for that ground connection line tweezer directly is entered into jaw, can press block 12, utilize block 12
Rack 10 is turned right promotion, this hour rack 10 rotates with moving gear 9 toward the direction for opening jaw, can will so as to open jaw
Ground connection line tweezer enters in jaw, unclamps rack 10, in the presence of the right wind spring 502 of left wind spring 501, jaw closure, can be connect
The test of ground resistance, block 12 increase lifting surface area of the rack 10 outside housing 1, facilitate operating personnel to press rack 10, simultaneously
Rack 10 is limited toward the distance of motion in housing 1, reducing makes rack 10 because of misoperation completely into housing 1,
Rack 10 is stuck in the situation in housing 1.
When directly pushing to by tester or detaching ground wire, ground wire can abut with left arc plate 401 and right arc plate 402,
At the same time, ground wire can also exist and be abutted with left iron core 301 and right iron core 302, and be sent out with left iron core 301 and right iron core 302
The situation of raw friction, after left breach 1301 and right breach 1302 is set, left iron core 301 is located in left breach 1301, right iron core
302 in right breach 1302, increase when directly pushing to by tester or detaching ground wire, ground wire and left iron core 301
The distance between right iron core 302, reduce the situation that ground wire rubs with left iron core 301 and right iron core 302.
Claims (7)
1. a kind of open-and-close mechanism of pliers-shape earthing resistance instrument, including housing (1), it is characterized in that：It is rotatablely connected in the housing (1)
There are left clamp arm (201) and right clamp arm (202), the left clamp arm (201) is used to install left iron core (301), the right clamp arm (202)
For installing right iron core (302), end set of the left clamp arm (201) away from housing (1) has a left side for the arc towards right setting
Arc plate (401), end set of the right clamp arm (202) away from housing (1) have the right arc plate (402) towards the arc of left setting,
The right-hand member of the left arc plate (401) and the left end of right arc plate (402) mutually abut cooperation, the left arc plate (401) and right arc plate
(402) after abutting, left iron core (301) and right iron core (302) are interconnected to a mutual inductance iron core closed, the housing (1)
Inside being provided with makes left clamp arm (201) and right clamp arm (202) have the slew gear of the trend rotated in opposite directions.
2. a kind of open-and-close mechanism of pliers-shape earthing resistance instrument according to claim 1, it is characterized in that：The slew gear bag
Include left wind spring (501) and right wind spring (502), the housing (1) with it is each at left clamp arm (201) and right clamp arm (202) rotation connection
Left mounting groove (601) and right mounting groove (602) are provided with, the left clamp arm (201) at housing (1) rotation connection with being provided with a left side
Installation axle (701), the left installation axle (701) are rotationally connected with the bottom of left mounting groove (601), the right clamp arm (202) with
Right installation axle (702) is provided with housing (1) rotation connection, the right installation axle (702) is rotationally connected with right mounting groove (602)
Bottom, be installed with left wind spring (501) between the cell wall of the left mounting groove (601) and the axle side of left installation axle (701),
Right wind spring (502) is installed between the cell wall of the right mounting groove (602) and the axle side of right installation axle (702).
3. a kind of open-and-close mechanism of pliers-shape earthing resistance instrument according to claim 2, it is characterized in that：The left clamp arm
(201) end set being rotatablely connected in itself and housing (1) has left fan tooth (801), and the right clamp arm (202) is in itself and housing
(1) end set of rotation connection has right wing tooth (802), and the left fan tooth (801) and right wing tooth (802) they are in be oppositely arranged, and
Intermeshing.
4. a kind of open-and-close mechanism of pliers-shape earthing resistance instrument according to claim 3, it is characterized in that：The left clamp arm
(201) axle center and the gear (9) of the axis coinciding of left fan tooth (801) are provided with, is slidably connected in the housing (1) and gear
(9) rack (10) that engagement coordinates, the left end of the rack (10) are piercing in housing (1).
5. a kind of open-and-close mechanism of pliers-shape earthing resistance instrument according to claim 4, it is characterized in that：In the housing (1)
Chute (11) is provided with, the rack (10) is slidably connected to chute (11).
6. a kind of open-and-close mechanism of pliers-shape earthing resistance instrument according to claim 4, it is characterized in that：The rack (10)
Left end is provided with block (12), and the block (12) abuts cooperation close to the side of housing (1) with housing (1).
7. a kind of open-and-close mechanism of pliers-shape earthing resistance instrument according to claim 1, it is characterized in that：The left arc plate
(401) right-hand member is provided with left breach (1301), and the left end of right arc plate (402) is provided with right breach (1302), the left breach
(1301) and right breach (1302) is mutually inserted cooperation, and the left iron core (301) passes left arc plate (401), and is located at left breach
(1301) in, the right iron core (302) passes right arc plate (402), and in right breach (1302), the left breach (1301)
When being mutually inserted with right breach (1302), left iron core (301) and right iron core (302) are interconnected to the mutual inductance iron closed
Core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720436986.6U CN206671425U (en) | 2017-04-24 | 2017-04-24 | A kind of open-and-close mechanism of pliers-shape earthing resistance instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720436986.6U CN206671425U (en) | 2017-04-24 | 2017-04-24 | A kind of open-and-close mechanism of pliers-shape earthing resistance instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206671425U true CN206671425U (en) | 2017-11-24 |
Family
ID=60375995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720436986.6U Expired - Fee Related CN206671425U (en) | 2017-04-24 | 2017-04-24 | A kind of open-and-close mechanism of pliers-shape earthing resistance instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206671425U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556391A (en) * | 2018-07-05 | 2018-09-21 | 烟台成峰机械科技有限公司 | A kind of space flight component down-lead molding press device |
| CN110614471A (en) * | 2019-09-24 | 2019-12-27 | 广州萝锋智能科技有限公司 | Anti-falling labor-saving clamp |
| CN111766538A (en) * | 2020-08-11 | 2020-10-13 | 广东电网有限责任公司 | Transformer iron core grounding detection device |
| CN114152800A (en) * | 2021-12-31 | 2022-03-08 | 国网黑龙江省电力有限公司大兴安岭供电公司 | Low-voltage overhead line current measuring and inspecting device |
-
2017
- 2017-04-24 CN CN201720436986.6U patent/CN206671425U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556391A (en) * | 2018-07-05 | 2018-09-21 | 烟台成峰机械科技有限公司 | A kind of space flight component down-lead molding press device |
| CN108556391B (en) * | 2018-07-05 | 2024-04-26 | 烟台成峰机械科技有限公司 | Lead profiling device for aerospace components |
| CN110614471A (en) * | 2019-09-24 | 2019-12-27 | 广州萝锋智能科技有限公司 | Anti-falling labor-saving clamp |
| CN111766538A (en) * | 2020-08-11 | 2020-10-13 | 广东电网有限责任公司 | Transformer iron core grounding detection device |
| CN114152800A (en) * | 2021-12-31 | 2022-03-08 | 国网黑龙江省电力有限公司大兴安岭供电公司 | Low-voltage overhead line current measuring and inspecting device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20210424 |