CN207051320U - A kind of pincerlike earth resistance device - Google Patents
A kind of pincerlike earth resistance device Download PDFInfo
- Publication number
- CN207051320U CN207051320U CN201720804202.0U CN201720804202U CN207051320U CN 207051320 U CN207051320 U CN 207051320U CN 201720804202 U CN201720804202 U CN 201720804202U CN 207051320 U CN207051320 U CN 207051320U
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- pincerlike
- telescopic
- main frame
- resistance device
- earth resistance
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Abstract
The utility model discloses a kind of pincerlike earth resistance device, solve when tested object location is higher or runs into narrow place that people can not pass through, just can not measure, its drip irrigation device is to include pincerlike part, main frame, support bar, pincerlike part is provided with two opposed and be hinged with it testing clamps, main frame is provided with the stretch conducting wire being connected with pincerlike part, support bar lower end is fixedly connected with main frame, pincerlike part is arranged on post upper, support bar includes telescopic and the expansion link that can be slided in telescopic, telescopic is provided with the locking mechanism for preventing expansion link from being slided on telescopic, pincerlike part is provided with the interlinked mechanism that can make testing clamp opening and closing, reach the higher measured object of energy measurement position, and can be through the local effect for the relatively narrower that human body can not pass through.
Description
Technical field
Earth resistance device is the utility model is related to, more particularly to a kind of pincerlike earth resistance device.
Background technology
Pliers-shape earthing resistance instrument is not required to disconnect down conductor when measurement has the earthed system in loop.Its principle is to survey
Measure loop resistance.The pincerlike part of split-core type meter is made up of potential winding and current coil, and potential winding provides pumping signal, and in quilt
A potential E is sensed on survey time road, E and I will be surveyed in tested loop generation electric current I, split-core type meter in the presence of potential E
Amount, measured resistance R can obtain by calculation formula.
Publication No. CN203572884U Chinese utility model patent discloses a kind of pincerlike earth resistance tester, should
Pincerlike earth resistance tester includes handle and jaw, and the jaw is capitalization English letter D-shaped, and the handle is connected to the jaw,
Its lower end is provided with LCDs, and to show grounding resistance, the side of the handle is provided with clamp handle, and this is connected to inside the clamp handle
Jaw, and control the folding of the jaw.The pincerlike earth resistance tester can clamp by wall laying and sectional area is larger connects
Ground downlead, use range is wide, and pressing is laborsaving, easy to carry.
But the pincerlike earth resistance tester can only the hand of people can touch place use, when tested object location compared with
Height, or when running into narrow place that people can not pass through, just can not measure.
Utility model content
The purpose of this utility model is to provide a kind of pincerlike earth resistance device, and the device energy measurement position is higher
Measured object, and the place of relatively narrower that human body can be passed through not pass through.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of pincerlike earth resistance device, including pincerlike part, main frame, support bar, the pincerlike part are provided with two
The individual symmetrical and testing clamp be hinged with it, the main frame are provided with the stretch conducting wire being connected with pincerlike part, under the support bar
End is fixedly connected with main frame, and the pincerlike part is arranged on post upper, and the support bar includes telescopic and can be flexible
The expansion link slided in set, the telescopic are provided with the locking mechanism for preventing expansion link from being slided on telescopic, the pincer
Part is provided with the interlinked mechanism that can make testing clamp opening and closing.
By such setting, by the sliding extension bar on telescopic the length of support bar can be made to change, adjusted
After the length of support bar, expansion link is fixed on telescopic with locking mechanism, then can utilizes support bar by pincerlike portion
Divide and be moved to beside measured object, recycle interlinked mechanism, testing clamp is closed or is opened, so as to which measured object is placed in into test
In pincers and start to measure, realize the higher measured object of test position, and can be through the place survey for the relatively narrower that human body can not pass through
Measure the grounding resistance of measured object.
It is of the present utility model further to set：The locking mechanism includes the bolt being located on telescopic, the bolt
Nut is provided with, is interval with several through holes that bolt can be allowed to pass through on the expansion link along its length.
By such setting, expansion link can slide in telescopic when taking out bolt, by bolt also cross telescopic
And expansion link, prevent expansion link that expansion link is fixed on telescopic so as to realize from being slided on telescopic.
It is of the present utility model further to set：The interlinked mechanism includes casing, and the casing antetheca is provided with can be upper and lower
The pull bar of slip, the casing are provided with the limited block spacing to pull bar, the connecting rod being hinged with testing clamp, institute are hinged with the top of pull bar
State the elastic mechanism that testing clamp lower end is provided with the trend for making testing clamp have closure.
By such setting, when pull bar is in extreme lower position, testing clamp is in closure state, pull handle, makes drawing
Bar upward sliding, so that pull bar pulls connecting rod, testing clamp can be driven to open, after the angle on the upside of two connecting rods is more than 180 °,
Limited block, which blocks pull bar, prevents it from moving up, so that testing clamp opens, if now having object on pull bar top or connecting rod
Apply a downward power, then can make pull bar slide downward, connecting rod is pulled, so as to drive testing clamp to close.Realization is measuring
During the impalpable measured object of human hand, testing clamp can easily be closed, then test the grounding resistance of measured object.
It is of the present utility model further to set：The elastic mechanism includes extension rod, and the extension rod is provided with and drives survey
Try the compression spring that icarceration is closed.
By such setting, it can make to be promoted by the pressure of compression spring with the extension rod that testing clamp is fixed, make test
Tonger has the trend of closure, so as to make testing clamp be closed because of the thrust by compression spring in use.
It is of the present utility model further to set：Inner side at the top of the testing clamp is provided with chamfering.
By such setting, when measured object is inside testing clamp, measured object can be made by pulling downward on pincerlike part
The thrust for contacting and can pushing testing clamp resistance compression spring open rotates to both ends, opens testing clamp, continues to pull downward on pincers
Shape part allows measured object to be separated along chamfering with testing clamp.
It is of the present utility model further to set：The bottom half is provided with the disk with being hinged at the top of telescopic, described to stretch
Contracting is put provided with the hold-down mechanism for compressing disk.
By such setting, pincerlike part can adjust the angle with support bar according to the needs at scene, then utilize pressure
Tight mechanism, pincerlike part is fixed on support bar, it is convenient to survey so as to need to adjust the angle of testing clamp according to scene
Amount, improve the applicability of the device.
It is of the present utility model further to set：The hold-down mechanism includes pressing plate, and the pressing plate is provided with to be led to telescopic
Cross the screw of threaded connection.
By such setting, when unclamping screw, make clamp loose disk, disk can be rotated, disk rotational to conjunction
Behind suitable position, pressing plate can be made to compress disk, so as to play a part of fixed pincerlike part by tightening screw again.
It is of the present utility model further to set：The main frame is provided with the guidance panel being rotatablely connected with it.
By such setting, in test process, user can adjust guidance panel and main frame according to the needs of measurement
Angle, so as to play the effect of convenient use guidance panel.
It is of the present utility model further to set：The main frame is provided with bayonet socket, and the guidance panel, which is provided with, can be caught in card
Mouth and the buckle being slidably connected with guidance panel, the buckle are provided with button, and the buckle, which is provided with, can make buckle and bayonet socket
Keep the latch spring of clamping.
By such setting, when guidance panel is by rotation, closes when on main frame, buckle and bayonet socket clamping, make operation
Panel is fixed on main frame, so as to play a part of protecting guidance panel, it is necessary to which in use, pressable button, supports buckle
The thrust of anti-spring separates with bayonet socket, so that guidance panel can be with Unscrew, then can use.
It is of the present utility model further to set：The guidance panel is provided with power switch, and the main frame is provided with as behaviour
Make to be expressed to the projection that power switch disconnects guidance panel power supply when panel closes with main frame.
By such setting, when guidance panel closes with main frame, power switch is pressed by projection, makes guidance panel electric
Source disconnects, and can play and avoid when guidance panel and main frame close guidance panel still in open state, and can save electricity, when
When guidance panel opens from main frame, projection, which unclamps power switch, makes guidance panel switch on power and start shooting, and plays convenient use
Effect.
In summary, the utility model has the advantages that：It can be slided, adjusted in telescopic by making expansion link
The length of whole support bar, then by screw also cross telescopic and expansion link.According to the requirement of test site, screw can be unclamped,
The angle of pincerlike part is adjusted, then tightening screw again makes pincerlike part be fixed on support bar and can not rotate.Pull pull bar
Testing clamp is opened, recycles support bar that pincer is moved partially into measured object, measured object is located at pincerlike partial interior, is utilized
Linkage closes testing clamp, so as to which measurement position is higher or the object of the intransitable position of people.Can be when in use
Rotation process panel, can also conveniently test, and can be when not in use by guidance panel by being fixed on to suitable angle
On main frame, guidance panel deenergization when guidance panel is fixed on main frame, when rotating on the outside of guidance panel main frame, then operating surface
Plate switches on power, and plays a part of convenient use and saves electricity.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment；
Fig. 2 is the structural representation of pincerlike part in the present embodiment；
Fig. 3 is the sectional view of the present embodiment middle case；
Fig. 4 is the enlarged drawing at A in Fig. 2；
Fig. 5 is the attachment structure schematic diagram of telescopic and expansion link in the present embodiment；
Fig. 6 is the structural representation of main frame in the present embodiment.
Reference：10th, pincerlike part；11st, casing；111st, it is open；112nd, limited block；113rd, disk；12nd, pull bar；13、
Handle；14th, testing clamp；15th, connecting rod；16th, extension rod；17th, compression spring；18th, chamfering；20th, support bar；21st, telescopic；22、
Pressing plate；24th, screw；25th, bolt；26th, nut；28th, expansion link；281st, through hole；30th, main frame；31st, stretch conducting wire；32nd, operating surface
Plate；33rd, power switch；34th, projection；35th, bayonet socket；36th, buckle；37th, button；38th, latch spring.
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 pincerlike earth resistance device, as shown in figure 1, including pincerlike part 10, main frame 30, support bar 20.Branch
The lower end of strut 20 is fixedly connected with main frame 30, and pincerlike part 10 is arranged on the upper end of support bar 20.Support bar 20 includes telescopic 21
With the expansion link 28 that can be slided in the telescopic 21, and expansion link 28 stretches out a part from the lower end of telescopic 21, passes through expansion link
28 slide in telescopic 21, realize the Telescopic of support bar 20.Main frame 30 is flexible provided with what is be connected with pincerlike part 10
Wire 31, make pincerlike part 10 while spiral helicine with the power on of main frame 30 and test signal being delivered into main frame 30
Stretch conducting wire 31 can follow the flexible of support bar 20 and be elongated or shorten.By the Telescopic of support bar 20, can measure
The higher measured object in position, it can also make the place for the relatively narrower that pincerlike earth resistance device can not pass through through human body, and
Test result can be obtained by the main frame 30 of the lower section of support bar 20.
As shown in Fig. 2 pincerlike part 10 is provided with casing 11, the upper end of casing 11 is provided with opening 111, two is provided with opening 111
Testing clamp 14 that is individual symmetrical and being hinged in casing 11, there is the coil for test in testing clamp 14, testing clamp 14 can with case
The hinged place rotation of body 11, allows two testing clamps 14 to close or open.Interlinked mechanism, interlinked mechanism bag are provided with casing 11
Include and be arranged on the centre position of the antetheca of casing 11 and the pull bar 12 that can slide up and down, pull bar 12 are provided with handle 13, can passed through
Pull handle 13 makes pull bar 12 be slided up and down on casing 11, while testing clamp 14 can be synchronized with the movement, and avoids testing clamp 14
Deflected to side, reach the effect of convenient use.Casing 11, which is provided with, can block the limited block 112 that handle 13 moves up, to pull bar
12 provide the limit function moved up.The middle part of testing clamp 14 is provided with connecting rod 15, one end of connecting rod 15 and the middle part of testing clamp 14
It is be hinged, and the top of the other end of connecting rod 15 and pull bar 12 is hinged.Realize by pulling pull bar 12 testing clamp 14 is opened or is closed
The function of conjunction.
As shown in figure 3, the lower end of testing clamp 14 is provided with elastic mechanism, elastic mechanism includes prolonging with what testing clamp 14 was fixedly connected
Boom 16, the compression spring 17 for the trend for making testing clamp 14 that there is closure is fixed with extension rod 16, the one end of compression spring 17 is consolidated
It is scheduled on the inwall of casing 11.When needing to test grounding resistance, handle 13 is pushed up, by the drivening rod 15 of pull bar 12, makes two surveys
Examination pincers 14 rotate to opening by closure, until when the angle of two upsides of connecting rod 15 is more than 180 °, because compression spring 17 makes test
Pincers 14 inwardly extrude connecting rod 15, connecting rod 15 is produced upward component on pull bar 12, and work as and move to the quilt of handle 13 on pull bar 12
When limited block 112 blocks, realize makes testing clamp 14 stablize in the position of opening using the pressure of compression spring 17, avoids testing
During testing clamp 14 accidental switch off, so as to convenient test.
Pincerlike part 10 is moved up during test, measured object is entered between two testing clamps 14, and be pressed down against drawing
Bar 12, pull bar 12 is resisted the power that compression spring 17 is applied on extension rod 16, move down, so that testing clamp 14 is by opening
Closure is rotated to, makes the coil contact at the top of testing clamp 14, connects the circuit of two testing clamps 14, two can be entered with test
The grounding resistance of measured object in testing clamp 14.
Two tops of testing clamp 14 are provided with chamfering 18, can pull pincerlike part 10 after being completed directly down, make to be tested
Thing pushes testing clamp 14 open along chamfering 18.Even if so as to reach pincerlike part 10 be in people hand it is impalpable local when, also may be used
So that testing clamp 14 unclamps measured object, and the function with convenient use.
So as to realize that testing clamp 14 can open or close as needed, complete in the place test that human hand can not touch
Into test.
The bottom of casing 11 is provided with the disk 113 for being secured to connection, as shown in figure 4, the top of disk 113 and telescopic 21
It is be hinged, enable pincerlike part 10 in the rotary-top of telescopic 21.
Telescopic 21 is provided with hold-down mechanism, and the hold-down mechanism includes the pressing plate 22 that one end can push down disk 113, another
End can be then pressed on telescopic 21, the screw 24 being connected through a screw thread with telescopic 21 is equipped with pressing plate 22, by that will pass through
The screw 24 of pressing plate 22 makes pressing plate 22 push down disk 113 on telescopic 2, disk 113 is reached and is clamped from rotating
Effect.
As shown in figure 5, telescopic 21 is provided with bolt 25, bolt 25 is provided with nut 26, and the expansion link 28 is provided with 9
It is individual to allow the through hole 281 that bolt 25 passes through.After expansion link 28 is slid into suitable position on telescopic 21, by screw 24
Through through hole 281, so as to which expansion link 28 is fixed on telescopic 21, reusable nut 26 fixes bolt 25.
As shown in fig. 6, main frame 30 is provided with guidance panel 32, the side of guidance panel 32 is be hinged with main frame 30, makes operation
Panel 32 can rotate on main frame 30.User can adjust the angle of guidance panel 32 as needed, reach convenient use
Effect；Guidance panel 32 and main frame 30 can be closed when not in use, so as to play a part of protecting guidance panel 32.
Main frame 30 is provided with bayonet socket 35, and the guidance panel 32 is provided with the buckle 36 of end bending, and buckle 36 can be with card
Mouth 35 is engaged by clamping, and guidance panel 32 is fixed on main frame 30.Buckle 36 is provided with button 37, and button 37 is provided with one end quilt
The latch spring 38 that guidance panel 32 props up, latch spring 38 can make buckle 36 and the state of the holding clamping of bayonet socket 35.Need to beat
By pressing button 37 when opening guidance panel 32, buckle 36 is resisted the elastic force of latch spring 38 and separated with bayonet socket 35, so as to beat
Open guidance panel 32.
Guidance panel 32 is provided with power switch 33, and the main frame 30 is provided with projection 34, when guidance panel 32 and main frame
Projection 34 can extrude power switch 33 during 30 closure, disconnect power switch 33, make to close behaviour while closed procedure panel 32
Make the power supply of panel 32, reach the effect for saving electricity；When being flipped to the outside on main frame 30, projection 34 unclamps guidance panel 32
Power switch 33, power switch 33 close, and guidance panel 32 is switched on power while opening, play the effect of convenient use
Fruit.
Specific implementation process：Screw 24 is unclamped, pressing plate 22 is unclamped disk 113, rotatable pincerlike part 10 is adjusted to conjunction
Suitable angle, then tighten screw 24 and pincerlike part 10 is fixed on the top of telescopic 21 again.Bolt 25 is taken out, adjusts support bar
20 length, bolt 25 is then passed through into telescopic 21 and expansion link 28 again, prevent support bar 20 from continuing to stretch, then use nut
26 fix bolt 25, prevent it from dropping.Push up handle 13 to handle 13 and be limited block 112 and block and can not continue up
It is mobile, pincerlike part 10 is moved by support bar 20, tester is placed between testing clamp 14.Continue to move up pincerlike part 10,
It is pressed downward pull bar 12 dynamic, until the motion of pull bar 12 drives testing clamp 14 to close, you can to start to test the ground connection of measured object
Resistance.
Button 37 is pressed, buckle 36 is unclamped out of bayonet socket 35, then guidance panel 32 is overturn to the outside of main frame 30.Open
While power switch 33 unclamped by projection 34, guidance panel 32 is switched on power.Then can use passes through guidance panel
32 obtain test result.
After the completion of test, guidance panel 32 and main frame 30 are closed, make buckle 36 and the clamping of bayonet socket 35, while projection 34 is pressed
Firmly power switch 33, disconnect the power supply of guidance panel 32.Pincerlike part 10 is pulled downward on, measured object is pushed survey open along chamfering 18
Examination pincers 14, are then separated with testing clamp 14.Nut 26 is unclamped, removes bolt 25, support bar 20 is contracted to the most short, can be compared
More conveniently carry.
Claims (10)
1. a kind of pincerlike earth resistance device, including pincerlike part（10）, main frame（30）, support bar（20）, the pincer
Part（10）Provided with two symmetrical and be hinged with it testing clamps（14）, it is characterised in that：The main frame（30）It is provided with and pincers
Shape part（10）The stretch conducting wire of connection（31）, the support bar（20）Lower end and main frame（30）It is fixedly connected, the pincerlike portion
Point（10）It is arranged on support bar（20）Upper end, the support bar（20）Including telescopic（21）With can be in telescopic（21）Interior slip
Expansion link（28）, the telescopic（21）It is provided with and prevents expansion link（28）In telescopic（21）The locking mechanism of upper slip,
The pincerlike part（10）Testing clamp can be made by being provided with（14）The interlinked mechanism of opening and closing.
2. pincerlike earth resistance device according to claim 1, it is characterized in that：The locking mechanism includes being located in
Telescopic（21）On bolt（25）, the bolt（25）It is provided with nut（26）, the expansion link（28）On along its length
Bolt can be allowed by being interval with several（25）The through hole passed through（281）.
3. pincerlike earth resistance device according to claim 2, it is characterized in that：The interlinked mechanism includes casing
（11）, the casing（11）Antetheca is provided with the pull bar that can slide up and down（12）, the casing（11）Provided with to pull bar（12）Limit
The limited block of position（112）, pull bar（12）Top is hinged with and testing clamp（14）Be hinged connecting rod（15）, the testing clamp（14）Under
End, which is provided with, makes testing clamp（14）The elastic mechanism of trend with closure.
4. pincerlike earth resistance device according to claim 3, it is characterized in that：The elastic mechanism includes extension rod
（16）, the extension rod（16）It is provided with and drives testing clamp（14）The compression spring of closure（17）.
5. pincerlike earth resistance device according to claim 4, it is characterized in that：The testing clamp（14）Top it is interior
Side is provided with chamfering（18）.
6. pincerlike earth resistance device according to claim 5, it is characterized in that：The casing（11）Bottom be provided with
Telescopic（21）The be hinged disk in top（113）, the telescopic（21）It is provided with and compresses disk（113）Hold-down mechanism.
7. pincerlike earth resistance device according to claim 6, it is characterized in that：The hold-down mechanism includes pressing plate
（22）, the pressing plate（22）It is provided with and telescopic（21）The screw being connected through a screw thread（24）.
8. pincerlike earth resistance device according to claim 7, it is characterized in that：The main frame（30）Be provided with and its
The guidance panel of rotation connection（32）.
9. pincerlike earth resistance device according to claim 8, it is characterized in that：The main frame（30）It is provided with bayonet socket
（35）, the guidance panel（32）It is provided with cocker card inlet（35）And and guidance panel（32）The buckle being slidably connected（36）,
The buckle（36）It is provided with button（37）, the buckle（36）Buckle can be made by being provided with（36）With bayonet socket（35）Keep clamping
Latch spring（38）.
10. pincerlike earth resistance device according to claim 9, it is characterized in that：The guidance panel（32）On set
There is power switch（33）, the main frame（30）It is provided with and works as guidance panel（32）With main frame（30）Power switch is expressed to during closure
（33）Make guidance panel（32）The projection that power supply disconnects（34）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720804202.0U CN207051320U (en) | 2017-07-05 | 2017-07-05 | A kind of pincerlike earth resistance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720804202.0U CN207051320U (en) | 2017-07-05 | 2017-07-05 | A kind of pincerlike earth resistance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207051320U true CN207051320U (en) | 2018-02-27 |
Family
ID=61495193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720804202.0U Active CN207051320U (en) | 2017-07-05 | 2017-07-05 | A kind of pincerlike earth resistance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207051320U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738700A (en) * | 2019-03-11 | 2019-05-10 | 宁波市电力设计院有限公司 | A kind of transformer harmonic measurement device |
| CN112578158A (en) * | 2020-12-25 | 2021-03-30 | 海南电网有限责任公司海南输变电检修分公司 | Multifunctional telescopic high-voltage test insulating rod |
| CN113189393A (en) * | 2021-04-28 | 2021-07-30 | 合肥工业大学 | Telescopic current clamp meter with controllable jaw |
| CN114589709A (en) * | 2022-03-01 | 2022-06-07 | 国网河北省电力有限公司雄安新区供电公司 | High-altitude operation manipulator |
-
2017
- 2017-07-05 CN CN201720804202.0U patent/CN207051320U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738700A (en) * | 2019-03-11 | 2019-05-10 | 宁波市电力设计院有限公司 | A kind of transformer harmonic measurement device |
| CN109738700B (en) * | 2019-03-11 | 2024-01-09 | 宁波市电力设计院有限公司 | Transformer harmonic detection device |
| CN112578158A (en) * | 2020-12-25 | 2021-03-30 | 海南电网有限责任公司海南输变电检修分公司 | Multifunctional telescopic high-voltage test insulating rod |
| CN113189393A (en) * | 2021-04-28 | 2021-07-30 | 合肥工业大学 | Telescopic current clamp meter with controllable jaw |
| CN114589709A (en) * | 2022-03-01 | 2022-06-07 | 国网河北省电力有限公司雄安新区供电公司 | High-altitude operation manipulator |
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