CN213517207U - Special connector for testing loop resistance of variable-diameter 10kV handcart type vacuum circuit breaker - Google Patents
Special connector for testing loop resistance of variable-diameter 10kV handcart type vacuum circuit breaker Download PDFInfo
- Publication number
- CN213517207U CN213517207U CN202021719849.1U CN202021719849U CN213517207U CN 213517207 U CN213517207 U CN 213517207U CN 202021719849 U CN202021719849 U CN 202021719849U CN 213517207 U CN213517207 U CN 213517207U
- Authority
- CN
- China
- Prior art keywords
- outer tube
- tube body
- pull rod
- circuit breaker
- vacuum circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model provides a variable diameter 10kV handcart-type vacuum circuit breaker loop resistance test special joint, including the outer tube body, the outer tube body is inside to have the central pull rod that can push and pull, the outside of outer tube body has a plurality of arc copper sheets of coaxial setting along the circumferencial direction, the surface of central pull rod is fixed with the rack that sets up with the corresponding quantity of arc copper sheet of axial setting, the outside meshing of each rack has the gear that is located in the outer tube body, each gear articulates in the outer tube body, each gear off-centre fixedly connected with connecting rod, the outside end of connecting rod stretches out the outer tube body and corresponds fixed connection with arc copper sheet, the outer tube body has the opening that supplies the connecting rod swing, the utility model discloses utilize the arc copper sheet that can stretch out and draw back, can form good contact with each type 10kV handcart-type vacuum circuit breaker moving contact, can not have the, poor contact occurs; the fixed static contact is not mismatched with each type of moving contact, the replacement efficiency can be improved, and the measurement error can be reduced.
Description
Technical Field
The utility model relates to a but reducing 10kV handcart-type vacuum circuit breaker return circuit resistance test special joint.
Background
At present, the circuit resistance test current line of the 10kV handcart type vacuum circuit breaker mainly has two modes: (1) the crocodile wire clamp is connected with a moving contact of a handcart type vacuum circuit breaker, and the method has the main problems that: the spring on the contact is easy to break and deform, the phase change increases the workload of operators or forms the potential safety hazard of operating equipment; the wire clamp belongs to point contact, the contact area is small, the test data deviation is easy to cause, and repeated measurement is needed during the test; the wire clamp is relatively sharp, the contact finger is easily scratched, and the contact area is reduced. (2) The method adopts the static contacts with the same diameter and size to be connected with the moving contact on the handcart type vacuum circuit breaker, and has the main problems that: a static contact with a diameter corresponding to the current handcart type vacuum circuit breaker moving contact needs to be found, so that the operation time and the intensity are increased, and the workload of operators is directly increased; the handcart type vacuum circuit breakers with different diameters cannot be directly adapted, and the working efficiency is reduced; in the face of different handcart type vacuum circuit breaker moving contacts, when the phase sequence is changed, the moving contacts are difficult to insert and extract or loose, and the measurement error is large easily.
Disclosure of Invention
The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is that the static contact structure that needs to design differently in the face of different handcart-type vacuum circuit breaker moving contacts in the aspect of current loop resistance test current line connection, efficiency is lower.
The utility model discloses a concrete implementation scheme is: the utility model provides a but reducing 10kV handcart-type vacuum circuit breaker return circuit resistance test special joint, a serial communication port, including outer body, outer body inside has the central pull rod that can push-and-pull, the outside of outer body has the arc copper sheet of a plurality of coaxial settings along the circumferencial direction, the external fixation of central pull rod has the rack that corresponds quantity setting with the arc copper sheet with the axial setting, and the outside meshing of each rack has the internal gear that is located the outer tube, and each gear articulates in outer body, and each eccentric fixedly connected with connecting rod of gear, the connecting rod outside end stretches out outer body and corresponds fixed connection with the arc copper sheet, outer body has the opening that is used for the connecting rod wobbling, the rear side of central pull rod is provided with the locating part of spacing center pull rod position.
Furthermore, the lower part of the outer tube body is fixedly connected with a bracket, the rear side of the outer tube body is closed, the middle part of the outer tube body is provided with an opening for the central pull rod to extend out, and the limiting part comprises a stop lever fixed at the end part of the central pull rod extending out of the outer tube body and a spring sleeved outside the central pull rod between the stop lever and the outer tube body.
Furthermore, the bracket is stretched into to the pin lower extreme, the bracket inboard has the limiting plate of spacing pin.
Furthermore, a fixed handle is fixed on the rear side of the outer tube body, a movable handle which is examined from the lower part of the outer tube body is fixed on the rear side of the central pull rod, and a notch for the movable handle to extend out is formed in the lower part of the outer tube body.
Furthermore, the arc copper sheet is connected with a lead.
Compared with the prior art, the utility model discloses following beneficial effect has: based on the defects existing in the connection aspect of the two loop resistance testing current lines, the utility model provides a special variable-diameter joint for loop resistance testing of a hollow cylinder, which can form good contact with moving contacts of various 10kV handcart type vacuum circuit breakers by utilizing an arc copper sheet structure capable of gathering and opening, and avoids the situations of spring burnout, scratching and poor contact of crocodile wire clamps; the situations that the fixed static contact is not matched with various moving contacts, the replacement efficiency is low and the measurement error is caused can be avoided. In addition, the conductive surface is composed of a plurality of arc-shaped copper sheets, so that the heat dissipation area is increased, the heat dissipation efficiency is improved, and the conductive area and the performance are ensured.
Drawings
Fig. 1 is a schematic view of the structure of 4 arc copper sheets of the present invention.
Fig. 2 is a schematic view of the arc copper sheet of fig. 1 according to the present invention.
Fig. 3 is a schematic view of the opening structure of the arc copper sheet shown in fig. 1 according to the present invention.
Fig. 4 is a schematic view of the arc copper sheet of fig. 3 according to the present invention.
Fig. 5 is a schematic view of the folding structure of the present invention having 6 arc copper sheets.
Fig. 6 is a schematic view of the arc copper sheet of fig. 5 according to the present invention.
Fig. 7 is a schematic view of the opening structure of the present invention having 6 arc-shaped copper sheets.
Fig. 8 is a schematic view of the arc copper sheet of fig. 7 according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-8, a but reducing 10kV handcart-type vacuum circuit breaker return circuit resistance test special joint, includes outer body 10, outer body inside has the central pull rod 20 that can push-and-pull, the outside of outer body has the arc copper sheet 30 of a plurality of coaxial settings along the circumferencial direction, the external surface of central pull rod 20 is fixed with and sets up the rack 210 that corresponds quantity setting with the arc copper sheet with the axial, and the outside meshing of each rack has the gear 220 that is located the outer body, and each gear articulates in the outer body, and each eccentric fixedly connected with connecting rod 230 of gear, the connecting rod 230 outside end stretches out outer body and corresponds fixed connection with arc copper sheet 30, outer body 10 has the opening that is used for the connecting rod wobbling, the rear side of central pull rod is provided with the locating part of spacing central pull rod position.
In this embodiment, the lower portion of the outer tube 10 is fixedly connected to the bracket 110, the rear side of the outer tube is closed, and the middle portion of the outer tube has an opening for the central pull rod 20 to extend out, and the limiting member includes a stop rod fixed to the end portion of the central pull rod extending out of the outer tube and a spring 250 sleeved outside the central pull rod between the stop rod 240 and the outer tube.
The during operation, the central pull rod can follow axial horizontal migration, generally the central pull rod with outer the coaxial setting of body, the gear articulate in the inside of outer body, gear 20 can rotate under the drive of rack 210, drive each connecting rod synchronous oscillation at each gear revolve's in-process, thereby make coaxial arc copper sheet 30 gather together or open the static contact that forms different diameters and be connected with the moving contact on the handcart-type vacuum circuit breaker, the diameter grow that can make the circle is constituteed to the multi-disc circular arc through the push-and-pull activity of central pull rod diminishes, the elasticity of the spring 250 of the afterbody of central pull rod forces each arc copper sheet 30 to be in open state, can guarantee to guarantee after stretching into the moving contact that the hollow cylinder that constitutes by a plurality of arc copper sheets 30 is laminated closely between the moving contact like this.
In this embodiment, the lower end of the stop lever 230 extends into the bracket 110, and the inner side of the bracket is provided with a limiting plate 111 for limiting the stop lever, so as to limit the maximum outward-extending angle of the arc-shaped copper sheet 30, and the limiting plate 111 can be designed with a plurality of gears.
In this embodiment, the rear side of the outer tube 10 is fixed with a fixed handle 120, the rear side of the central pull rod is fixed with a movable handle 260 examined from the lower part of the outer tube, the lower part of the outer tube has a notch for the movable handle to extend out, and the arc copper sheet is connected with a lead.
When the central pull rod acts, the angle between each connecting rod and the central pull rod is the same, and each arc copper sheet is ensured to be parallel to the central pull rod. The length of each connecting rod can meet the requirements of the insertion of the moving contact of the handcart type vacuum circuit breaker with the maximum diameter of 10kV and the close fit between the moving contact and the arc-shaped copper sheets. The circle formed by the plurality of arc-shaped copper sheets can meet the requirements of the sizes of 49mm phi, 55mm phi, 79mm phi and 109mm phi respectively, and is consistent with the sizes of static contacts of 10kV handcart type vacuum circuit breakers for national power grids (1250A/phi 49mm, 1600A/phi 55mm, 2000A/phi 79mm, 3150A/phi 109mm and 4000A/phi 109 mm).
Through above-mentioned scheme, the diameter of 10kV handcart-type vacuum circuit breaker moving contact is confirmed in advance before the work, adjusts the central pull rod to the draw-in groove that corresponds, then presses movable handle, and the hollow cylinder diameter that the arc copper sheet was constituteed this moment can contract, can conveniently insert 10kV handcart-type vacuum circuit breaker's moving contact. After the test is finished, the movable handle is pressed when the test needs to be pulled out or replaced, and the operation is convenient.
Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.
Above-mentioned the utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.
The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (5)
1. The utility model provides a but reducing 10kV handcart-type vacuum circuit breaker return circuit resistance test special joint, a serial communication port, including outer body, outer body inside has the central pull rod that can push-and-pull, the outside of outer body has the arc copper sheet of a plurality of coaxial settings along the circumferencial direction, the external fixation of central pull rod has the rack that corresponds quantity setting with the arc copper sheet with the axial setting, and the outside meshing of each rack has the internal gear that is located the outer tube, and each gear articulates in outer body, and each eccentric fixedly connected with connecting rod of gear, the connecting rod outside end stretches out outer body and corresponds fixed connection with the arc copper sheet, outer body has the opening that is used for the connecting rod wobbling, the rear side of central pull rod is provided with the locating part of spacing center pull rod position.
2. The special connector for testing the loop resistance of the variable-diameter 10kV handcart-type vacuum circuit breaker according to claim 1, wherein a bracket is fixedly connected to the lower portion of the outer tube body, the rear side of the outer tube body is closed, an opening for the central pull rod to extend out is formed in the middle of the rear side of the outer tube body, the limiting part comprises a stop rod fixed at the end portion, extending out of the outer tube body, of the central pull rod, and a spring sleeved outside the central pull rod between the stop rod and the outer tube body.
3. The special connector for testing the loop resistance of the variable-diameter 10kV handcart type vacuum circuit breaker according to claim 2, wherein the lower end of the stop rod extends into the bracket, and a limiting plate for limiting the stop rod is arranged on the inner side of the bracket.
4. The special connector for testing the resistance of the variable-diameter 10kV handcart type vacuum circuit breaker loop according to claim 3, wherein a fixed handle is fixed on the rear side of the outer tube body, a movable handle which is checked from the lower part of the outer tube body is fixed on the rear side of the center pull rod, and a notch for the movable handle to extend out is formed in the lower part of the outer tube body.
5. The special connector for testing the loop resistance of the variable-diameter 10kV handcart type vacuum circuit breaker according to claim 1, wherein the arc-shaped copper sheet is connected with a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021719849.1U CN213517207U (en) | 2020-08-18 | 2020-08-18 | Special connector for testing loop resistance of variable-diameter 10kV handcart type vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021719849.1U CN213517207U (en) | 2020-08-18 | 2020-08-18 | Special connector for testing loop resistance of variable-diameter 10kV handcart type vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213517207U true CN213517207U (en) | 2021-06-22 |
Family
ID=76440453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021719849.1U Active CN213517207U (en) | 2020-08-18 | 2020-08-18 | Special connector for testing loop resistance of variable-diameter 10kV handcart type vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213517207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113777363A (en) * | 2021-08-24 | 2021-12-10 | 国网福建省电力有限公司南安市供电公司 | Variable-diameter pre-compression special joint for loop resistance test and working method thereof |
-
2020
- 2020-08-18 CN CN202021719849.1U patent/CN213517207U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113777363A (en) * | 2021-08-24 | 2021-12-10 | 国网福建省电力有限公司南安市供电公司 | Variable-diameter pre-compression special joint for loop resistance test and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213517207U (en) | Special connector for testing loop resistance of variable-diameter 10kV handcart type vacuum circuit breaker | |
| CN209334484U (en) | A kind of detection system with tab shaping feature | |
| CN204011804U (en) | For welding the earth wire clamp of revolving body part | |
| CN202749752U (en) | Insulation operating rod | |
| CN202094419U (en) | Plug with clamp | |
| CN208005825U (en) | A kind of labor-saving hole-punching machine | |
| CN205693016U (en) | A kind of big electric current plug jack of double-curved-surfacbelt belt spring | |
| CN203042442U (en) | Split type electric coagulation forceps | |
| CN212243816U (en) | Rotor shimmy structure of single-rotor-wing unmanned aerial vehicle without ailerons | |
| CN208953580U (en) | A kind of probe | |
| CN208188169U (en) | A kind of high power battery probe | |
| CN211350422U (en) | Automatic change-over switch electric appliance | |
| CN207800926U (en) | A kind of automobile circuit system connector | |
| CN2349713Y (en) | Automatic resetting bundling reed type wobbler contact | |
| CN203074857U (en) | Split type stretchable electric coagulation forceps | |
| CN205521396U (en) | Internal expanding mechanism for robot | |
| CN221328166U (en) | Socket copper piece | |
| CN214904093U (en) | Modular operating coat hem mechanism | |
| CN213249523U (en) | Medical tweezers | |
| CN216214155U (en) | Conductive device supporting installation of current sensor | |
| CN209496566U (en) | A kind of led charactron stabilizer blade attachment device for exempting from cutting | |
| CN207097691U (en) | A kind of attachment structure of disconnecting switch and breaker | |
| CN218801870U (en) | Four-insert pin twisting tool | |
| CN203085767U (en) | Connection device for plasma cutting torch and cable | |
| CN215534837U (en) | Conveniently-replaced arachnoid knife taking injection needle as knife head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |