CN219046328U - Plug wire pulling clamp special for loop resistance test of plum blossom contact of handcart type circuit breaker - Google Patents
Plug wire pulling clamp special for loop resistance test of plum blossom contact of handcart type circuit breaker Download PDFInfo
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- CN219046328U CN219046328U CN202223338597.XU CN202223338597U CN219046328U CN 219046328 U CN219046328 U CN 219046328U CN 202223338597 U CN202223338597 U CN 202223338597U CN 219046328 U CN219046328 U CN 219046328U
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Abstract
The utility model discloses a special plug wire clamp for testing the loop resistance of a plum blossom contact of a handcart type circuit breaker, which is mainly applied to the technical field of electric power tests and comprises a fixed support, a rotating support and an elastic sheet, wherein 2 binding posts are arranged at the top of the fixed support, a through hole is arranged in the center of the fixed support, and a plurality of sliding rails are arranged at the bottom of the fixed support; the top of the rotary support is provided with a driving shaft, the bottom of the rotary support is provided with a plurality of elastic piece limiting grooves, and the elastic piece limiting grooves are arc-shaped; the elastic sheet consists of an arc-shaped conductive sheet, a supporting rod and an elastic sheet limiting column, wherein the supporting rod is arranged on the inner wall of the arc-shaped conductive sheet, and the elastic sheet limiting column is vertically arranged on one side of the supporting rod; the support rod moves in the sliding rail. The special plug wire clamp for testing the loop resistance of the quincuncial contact of the handcart type circuit breaker is convenient to use, the arc-shaped conducting strip is tightly attached to the inner wall of the quincuncial contact, the contact area is guaranteed, the loop resistance of the handcart type circuit breaker can be accurately measured, the working efficiency is improved, and the accuracy of test data is guaranteed.
Description
Technical Field
The utility model relates to the technical field of electric power tests, in particular to a special plug wire clamp for testing loop resistance of a plum blossom contact of a handcart type circuit breaker.
Background
The outer ring of the plum blossom contact of the handcart type circuit breaker is provided with springs and contact fingers in plum blossom patterns, the occupied area of the springs on the outer surface is large, the contact fingers are arranged at intervals in plum blossom shapes, more conductive paste and lubricant are coated on the contact fingers, at present, the circuit resistance test of the handcart type circuit breaker can only be carried out on plum blossom pages on the outer ring, in the circuit resistance test process of the plum blossom contact of the handcart type circuit breaker, the contact area of a wire clamp and the contact fingers is smaller due to small space between the plum blossom contacts, the pressing force is insufficient, the risk that the wire clamp cannot clamp the plum blossom contact to fall in the test exists, and the circuit resistance test data is larger due to small contact area of the wire clamp and the plum blossom contact, the pressing force is insufficient and the use of grease lubricant, so that the test effective data can be obtained by repeated tests, and the test is time-consuming and labor-consuming.
Disclosure of Invention
The utility model provides a special wire pulling and inserting clamp for loop resistance test of a plum blossom contact of a handcart type circuit breaker, which solves the problems of unreliable loop resistance test data and complicated experimental procedures caused by small contact area of a wire clamp and the plum blossom contact, insufficient pressing force and the use of a grease lubricant.
The technical scheme of the utility model is as follows: the utility model provides a special plug wire clamp that pulls out of handcart-type circuit breaker plum blossom contact return circuit resistance test, includes fixed bolster, runing rest, shell fragment, the fixed bolster top sets up 2 terminal, and the center sets up the through-hole, and the bottom sets up a plurality of slide rails; the top of the rotary support is provided with a driving shaft, the bottom of the rotary support is provided with a plurality of elastic piece limiting grooves, and the elastic piece limiting grooves are arc-shaped; the elastic sheet consists of an arc-shaped conductive sheet, a supporting rod and an elastic sheet limiting column, wherein the supporting rod is arranged on the inner wall of the arc-shaped conductive sheet, and the elastic sheet limiting column is vertically arranged on one side of the supporting rod; the spring is arranged between the support rod and the fixed support, the driving shaft penetrates through a through hole in the center of the fixed support, the driving shaft is sleeved in the through hole of the rotating wheel, the elastic piece limiting column slides in the elastic piece limiting groove, and a torsion spring is arranged between the rotating support and the fixed support.
Preferably, the rotating wheel is in an elliptic cylinder and is subjected to surface knurling treatment.
Preferably, the fixed support, the rotary support and the elastic sheet are made of brass.
Preferably, the number of the sliding rails and the elastic sheets is 4, and the sliding rails are uniformly distributed at the bottom of the fixed support.
The principle of the utility model is as follows: in order to solve the problem that in the loop resistance test process of the quincuncial contact of the handcart type circuit breaker, the contact area of a wire clamp and a contact finger is smaller due to small space of the quincuncial contact, and the resistance test data is unreliable due to insufficient pressing force, the spring is arranged between the fixed support and the supporting rod, and the arc-shaped conducting strip at the tail end of the supporting rod is tightly attached to the inner wall of the quincuncial contact through the elasticity of the spring, so that the distortion of the test data is avoided; in order to facilitate the use, the rotating wheel is screwed by fingers, the rotating wheel drives the driving shaft and the rotating bracket to rotate, the bottom of the rotating bracket is provided with a plurality of elastic piece limiting grooves, the elastic piece limiting columns move in the elastic piece limiting grooves, at the moment, the rotating moment of the driving shaft is converted into forward and backward movements of the supporting rod and the arc-shaped conducting strip, the arc-shaped conducting strip is scaled, and the rotating wheel is conveniently placed in or taken out of the plum blossom contact during the test, so that the test efficiency is improved.
The technical problems to be solved by the utility model are as follows: the utility model provides a special plug wire clamp for loop resistance test of a quincuncial contact of a handcart type circuit breaker, which is characterized in that a spring is arranged between a fixed support and a supporting rod, an arc-shaped conducting strip at the tail end of the supporting rod is tightly attached to the inner wall of the quincuncial contact through the elasticity of the spring, test data distortion is avoided, a rotating support is driven to rotate by screwing a rotating wheel, the arc-shaped conducting strip moves forwards and backwards along the radial direction of the rotating support, and the plug wire clamp is convenient to test and is put into or taken out of the quincuncial contact.
The utility model has the beneficial effects that: the special plug wire clamp for testing the loop resistance of the quincuncial contact of the handcart type circuit breaker is convenient to use, the arc-shaped conducting strip is tightly attached to the inner wall of the quincuncial contact, the contact area is guaranteed, the loop resistance of the handcart type circuit breaker can be accurately measured, the working efficiency is improved, and the accuracy of test data is guaranteed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is an exploded view of the structure of the present utility model;
FIG. 4 is an exploded view of the structure of the present utility model;
in the figure, 10-fixed brackets, 101-rotating wheels, 102-binding posts, 103-through holes, 104-sliding rails, 105-springs, 20-rotating brackets, 201-driving shafts, 202-elastic sheet limiting grooves, 203-torsion springs, 30-elastic sheets, 301-arc-shaped conducting sheets, 302-supporting rods and 303-elastic sheet limiting posts.
Detailed Description
The specific implementation mode of the utility model is as follows: as shown in fig. 1, 2, 3 and 4, a special plug wire pulling clamp for testing the loop resistance of a plum blossom contact of a handcart type circuit breaker comprises a fixed support 10, a rotating support 20 and an elastic sheet 30, wherein 2 binding posts 102 are arranged at the top of the fixed support 10, a through hole is arranged in the center of the fixed support, and a plurality of sliding rails 104 are arranged at the bottom of the fixed support; the top of the rotary support 20 is provided with a driving shaft 201, the bottom of the rotary support is provided with a plurality of elastic piece limiting grooves 202, and the elastic piece limiting grooves 202 are arc-shaped; the elastic sheet 30 consists of an arc-shaped conductive sheet 301, a supporting rod 302 and an elastic sheet limiting column 303, wherein the supporting rod 302 is arranged on the inner wall of the arc-shaped conductive sheet 301, and the elastic sheet limiting column 303 is vertically arranged on one side of the supporting rod 302; the supporting rod 302 moves in the sliding rail 104, a spring 105 is arranged between the supporting rod 302 and the fixed support 10, the driving shaft 201 penetrates through a through hole in the center of the fixed support 10, the driving shaft 201 is sleeved in the through hole 103 of the rotating wheel 101, the elastic piece limiting column 303 slides in the elastic piece limiting groove 202, and a torsion spring 203 is arranged between the rotating support 20 and the fixed support 10.
Specifically, as shown in fig. 1 and 3, the rotating wheel 101 is in an elliptic cylinder shape and is subjected to surface knurling treatment. The rotating wheel 101 with the elliptic cylinder and the knurled surface still has enough surface friction force after being stained with conductive paste and lubricant, so that operators can conveniently take and put the rotating wheel into the plum blossom contact of the handcart type circuit breaker.
Specifically, the fixed bracket 10, the rotary bracket 20 and the elastic sheet 30 are made of brass. The fixed support 10, the rotary support 20 and the elastic sheet 30 which are made of brass have good conductivity, low cost and convenient material drawing.
Specifically, the number of the sliding rails 104 and the elastic sheets 30 is 4, and the sliding rails 104 are uniformly distributed at the bottom of the fixing support 10 at 90 degrees. The number of the sliding rails 104 and the elastic pieces 30 is 4, so that the elastic pieces 30 can run stably along the radial direction of the rotating bracket 20, and the running stability of the utility model is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a special plug wire clamp that pulls out of handcart-type circuit breaker plum blossom contact return circuit resistance test, includes fixed bolster (10), runing rest (20), shell fragment (30), its characterized in that: 2 binding posts (102) are arranged at the top of the fixed support (10), a through hole is arranged in the center of the fixed support, and a plurality of sliding rails (104) are arranged at the bottom of the fixed support; the top of the rotary support (20) is provided with a driving shaft (201), the bottom of the rotary support is provided with a plurality of elastic piece limiting grooves (202), and the elastic piece limiting grooves (202) are arc-shaped; the elastic sheet (30) consists of an arc-shaped conductive sheet (301), a supporting rod (302) and an elastic sheet limiting column (303), wherein the supporting rod (302) is arranged on the inner wall of the arc-shaped conductive sheet (301), and the elastic sheet limiting column (303) is vertically arranged on one side of the supporting rod (302); the spring type rotating support is characterized in that the supporting rod (302) moves in the sliding rail (104), a spring (105) is arranged between the supporting rod (302) and the fixed support (10), the driving shaft (201) penetrates into a through hole in the center of the fixed support (10), the driving shaft (201) is sleeved in a through hole (103) of the rotating wheel (101), the elastic piece limiting column (303) slides in the elastic piece limiting groove (202), and a torsion spring (203) is arranged between the rotating support (20) and the fixed support (10).
2. The special plug wire clamp for testing the loop resistance of the quincuncial contact of the handcart type circuit breaker according to claim 1, wherein the plug wire clamp is characterized in that: the rotating wheel (101) is in an elliptic cylinder shape and is subjected to surface knurling treatment.
3. The special plug wire clamp for testing the loop resistance of the quincuncial contact of the handcart type circuit breaker according to claim 1, wherein the plug wire clamp is characterized in that: the fixed support (10), the rotary support (20) and the elastic sheet (30) are made of brass.
4. The special plug wire clamp for testing the loop resistance of the quincuncial contact of the handcart type circuit breaker according to claim 1, wherein the plug wire clamp is characterized in that: the number of the sliding rails (104) and the elastic sheets (30) is 4, and the sliding rails (104) are uniformly distributed at the bottom of the fixed support (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223338597.XU CN219046328U (en) | 2022-12-14 | 2022-12-14 | Plug wire pulling clamp special for loop resistance test of plum blossom contact of handcart type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223338597.XU CN219046328U (en) | 2022-12-14 | 2022-12-14 | Plug wire pulling clamp special for loop resistance test of plum blossom contact of handcart type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219046328U true CN219046328U (en) | 2023-05-19 |
Family
ID=86320118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223338597.XU Active CN219046328U (en) | 2022-12-14 | 2022-12-14 | Plug wire pulling clamp special for loop resistance test of plum blossom contact of handcart type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219046328U (en) |
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2022
- 2022-12-14 CN CN202223338597.XU patent/CN219046328U/en active Active
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