CN217655154U - Circuit breaker loop resistance test clip - Google Patents

Abstract

A circuit breaker loop resistance test clamp comprises a first clamp arm and a second clamp arm which are hinged with each other and are in a scissors shape, wherein handles are fixedly arranged at one ends of the first clamp arm and the second clamp arm which are positioned on the same side; the first clamping arm and the second clamping arm are both provided with connecting parts and are positioned at one ends far away from the handle, the two connecting parts are both hinged with detection mechanisms, and a first reset piece is detachably arranged between the two detection mechanisms; a second reset piece is detachably mounted between the first clamping arm and the second clamping arm and is positioned between the two handles. The utility model discloses can replace original adoption and press from both sides tight plum blossom contact and carry out the detection mode that resistance test, direct contact and conducting rod contact, test data are accurate and convenient, need not polish the oxide layer repeatedly, labour saving and time saving and convenient operation.

Description

Circuit breaker loop resistance test clip

Technical Field

The utility model relates to a circuit breaker check out test set technical field especially relates to a circuit breaker return circuit resistance test presss from both sides.

Background

At present, a high-voltage circuit breaker is used as important control equipment in a power system, plays an important role in safe operation of a power grid, and measurement of circuit breaker loop resistance is a necessary measurement project of a preventive test of power equipment.

Most of the existing 10kV and 35kV circuit breakers used in the transformer substation are of a handcart type, and a movable contact of the circuit breaker is composed of a conducting rod, a plum blossom contact and an insulating sheath. The test clamp with the limited space of the circuit breaker can not be directly clamped on the conducting rod and can only be clamped on the plum blossom contact. This wiring method has the following disadvantages: the resistance of a test loop is increased by one more contact point (the contact point of the plum blossom contact and the conducting rod), the measured data is unqualified due to oxidation of the plum blossom contact, the oxide layer is ground off by rotating the plum blossom contact in a conventional method, and the plum blossom contact is time-consuming and labor-consuming and can be damaged to cause hidden trouble in operation.

Consequently, urgent need for a circuit breaker return circuit resistance test presss from both sides, can replace original adoption to press from both sides tight plum blossom contact and carry out the detection mode that resistance tested, direct contact and conducting rod contact, and test data is accurate and convenient, need not polish the oxide layer repeatedly, labour saving and time saving and convenient operation.

SUMMERY OF THE UTILITY MODEL

In view of this, the technical problem to be solved by the present invention is: the utility model provides a circuit breaker return circuit resistance test presss from both sides can replace original adoption to press from both sides tight plum blossom contact and carry out the detection mode that resistance test, and direct contact and conducting rod contact, test data are accurate and convenient, need not polish the oxide layer repeatedly, labour saving and time saving and convenient operation.

In order to solve the technical problem, the technical scheme of the utility model is that:

a circuit breaker loop resistance test clamp comprises a first clamp arm and a second clamp arm which are hinged with each other and are in a scissors shape, wherein handles are fixedly arranged at one ends of the first clamp arm and the second clamp arm which are positioned on the same side;

connecting parts are arranged on the first clamping arm and the second clamping arm and are positioned at one ends far away from the handle, detecting mechanisms are hinged to the two connecting parts, and a first reset piece is detachably arranged between the two detecting mechanisms;

first arm lock with demountable installation has the second to reset between the second arm lock and is located two between the handle.

Preferably, two the detection mechanism structure is the same and to the setting of pair, all includes:

with connecting portion articulated movable block, the outside demountable installation of movable block has the elastic block, the outside fixed mounting of elastic block has the current conducting plate.

Preferably, a positioning portion for fixing the first resetting piece is convexly arranged on the inner side of the movable block.

Preferably, the concave at least holding tank that is equipped with in the outside of movable block, the elasticity piece epirelief be equipped with the quantity unanimity of holding tank and the spacing arch of cooperation use.

Preferably, the number of the accommodating grooves is two.

Preferably, the elastic block is made of rubber or silica gel.

Preferably, the outer side surface of the conductive plate is provided in an arc shape.

Preferably, the inner side surface of the conductive plate is convexly provided with an integrally formed binding post and is positioned at one end close to the handle.

Preferably, the material of the conducting plate is red copper.

Preferably, the first reset piece and the second reset piece are both torsion springs.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

through the utility model discloses in, be provided with first arm lock of articulated and second arm lock, equal fixed mounting has the handle in first arm lock and the second arm lock, through gripping the handle, can drive connecting portion on first arm lock and the second arm lock and be close to each other, it has detection mechanism to articulate on the connecting portion, and then it is close to each other to drive two detection mechanism, be convenient for stretch into the inside of conducting rod with detection mechanism, with the inner wall butt of conducting rod, realize direct contact, replace original adoption and press from both sides the detection mode that tight plum blossom contact carries out resistance test, test data is accurate and convenient, need not polish the oxide layer repeatedly, labour saving and time saving and convenient operation. A first reset piece is arranged between the two detection mechanisms, and the front ends of the detection mechanisms can abut against the inner wall of the conducting rod under the action of the first reset piece, so that the attachment is realized; the second reset piece is arranged between the first clamping arm and the second clamping arm, and under the action of the second reset piece, the rear end of the detection mechanism can be abutted against the inner wall of the conductive rod through the connecting part, so that the laminating is realized, the laminating effect of the detection mechanism and the inner wall of the conductive rod is improved, and the detection accuracy is improved.

The utility model discloses in, detection mechanism includes the movable block, is provided with the elastic block on the movable block, and fixed mounting has the current conducting plate on the elastic block, and the current conducting plate carries out direct contact with the inner wall of conducting rod, through being provided with the elastic block, to the inconsistent conducting rod of internal diameter size, the current conducting plate can make the elastic block take place deformation through oppression elastic block in with the laminating of conducting rod inner wall, and then satisfies the demand that current conducting plate and conducting rod inner wall closely laminated.

The utility model discloses in, the protruding terminal that is equipped with of medial surface of current conducting plate is convenient for carry out resistance test with wire and terminal connection, has improved the result of use.

To sum up, the utility model discloses a circuit breaker return circuit resistance test presss from both sides can replace original adoption to press from both sides tight plum blossom contact and carry out the detection mode that resistance tested, and direct contact and conducting rod contact, test data are accurate and convenient, need not polish the oxide layer repeatedly, labour saving and time saving and convenient operation.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

fig. 4 is a schematic structural diagram of the embodiment of the present invention when assembled with a conductive rod;

FIG. 5 isbase:Sub>A cross-sectional view A-A of FIG. 4;

FIG. 6 is an enlarged view of portion B of FIG. 5;

in the figure:

1. a first clamp arm; 2. a second clamp arm; 3. a grip; 4. a connecting portion; 5. a detection mechanism; 51. a movable block; 511. a positioning part; 512. accommodating grooves; 52. an elastic block; 521. a limiting bulge; 53. a conductive plate; 531. a binding post; 6. a first reset member; 7. a second reset member; 8. a conductive rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 to 6, the present invention includes a first arm lock 1 and a second arm lock 2 hinged to each other in a scissors shape, and a handle 3 is fixedly mounted on the first arm lock 1 and on the second arm lock 2 at the same side.

All be provided with connecting portion 4 and be located the one end of keeping away from handle 3 on first arm lock 1 and the second arm lock 2, all articulated on two connecting portion 4 have detection mechanism 5, and demountable installation has the first piece 6 that resets between two detection mechanism 5, and demountable installation has the second to reset between first arm lock 1 and the second arm lock 2 and resets 7 and be located between two handles 3.

By arranging the handle 3, an operator can drive the two connecting parts 4 to approach each other by holding the handle 3, so as to drive the two detection mechanisms 5 to approach each other, a first reset piece 6 is arranged between the two detection mechanisms 5, and the first reset piece 6 supports the two detection mechanisms 5 to enable the two detection mechanisms 5 to be in an open state, so that the use requirements are met; stretch into the inside back of conducting rod 8 with detection mechanism 5, detection mechanism 5 realizes direct contact under the effect of first piece 6 that resets, with the inner wall butt of conducting rod 8, replaces original adoption and presss from both sides tight plum blossom contact and carries out the detection mode that resistance test, and test data is accurate and convenient, need not polish the oxide layer repeatedly, labour saving and time saving and convenient operation. A first reset piece 6 is arranged between the two detection mechanisms 5, and under the action of the first reset piece 6, the front ends of the detection mechanisms 5 can abut against the inner wall of the conducting rod 8, so that the attachment is realized; a second reset piece 7 is arranged between the first clamping arm 1 and the second clamping arm 2, and under the action of the second reset piece 7, the rear end of the detection mechanism 5 can be abutted against the inner wall of the conductive rod 8 through the connecting part 4, so that the attachment is realized, the attachment effect of the detection mechanism and the inner wall of the conductive rod is improved, and the detection accuracy is improved; simultaneously, the requirement of reseing after first arm lock 1 and second arm lock 2 use has also been satisfied.

Wherein, the first reset piece 6 and the second reset piece 7 are both torsion springs.

The utility model discloses in, two detection mechanism 5 structures are the same and to setting up, all include:

with connecting portion 4 articulated movable block 51, the outside demountable installation of movable block 51 has elastic block 52, and the outside fixed mounting of elastic block 52 has current conducting plate 53, and preferably, the material of current conducting plate 53 is red copper, is convenient for electrically conduct.

A positioning portion 511 for fixing the first reset piece 6 is protruded from the inner side of the movable block 51.

The concave at least holding tank 512 that is equipped with in the outside of movable block 51, the elasticity piece 52 epirelief be equipped with the unanimous spacing arch 521 that uses of the quantity of holding tank 512, preferred, the quantity of holding tank 512 is twice, the material of elasticity piece 52 is rubber or silica gel.

The outer side surface of the conductive plate 53 is arc-shaped, so that the conductive plate is attached to the inner wall of the conductive rod 8 conveniently.

The convex terminal 531 that is equipped with integrated into one piece of medial surface of current conducting plate 53 and be located the one end that is close to handle 3, the operating personnel of being convenient for is connected the wire through terminal 531 and tester, has improved the result of use.

Through being provided with elastic block 52, to the inconsistent conducting rod 8 of internal diameter size, conducting plate 53 can make elastic block 52 take place deformation through oppression elastic block 52 when laminating with the inner wall of conducting rod 8, and then satisfies the demand that conducting plate 53 closely laminated with the inner wall of conducting rod 8.

The utility model discloses before the use, operating personnel is connected voltage line and power cord on with the tester with two current conducting plates 53 through terminal 531 respectively.

When the handle 3 is used, an operator holds the handle 3 to press the second reset piece 7, the two movable blocks 51 are driven to be close to each other through the two connecting parts 4, the first reset piece 6 is pressed, the conductive plates 53 are driven to be close to each other in the process that the two movable blocks 51 are close to each other, when the distance between the two conductive plates 53 is smaller than the inner diameter of the conductive rod 8, the two conductive plates 53 are stretched into the inner cavity of the conductive rod 8, the handle 3 is loosened, and under the action of the first reset piece 6, the front ends of the conductive plates 53 are abutted against the inner wall of the conductive rod 8, so that direct contact is realized; under the effect that the second resets 7, it is articulated with movable block 51 through connecting portion 4, realize the inner wall butt with the rear end of current-conducting plate 53 and conducting rod 8, realize direct contact, improved laminating effect between the two.

To the conducting rod 8 of internal diameter size undersize, when conducting plate 53 and the inner wall butt of conducting rod 8, the both sides of conducting plate 53 earlier with the inner wall butt of conducting rod 8, and the top of conducting plate 53 is not with the inside contact of conducting rod 8, first piece 6 that resets, under the combined action of second piece 7 and elastic block 52, first piece 6 that resets, outside power continues to be applyed to movable block 51 to second piece 7 that resets, drive conducting plate 53 and continue to remove to the inner wall direction that is close to conducting rod 8, the in-process that removes, conducting plate 53 oppresses elastic block 52, make elastic block 52's both sides take place to deform, the deformation demand of conducting plate 53 is satisfied, satisfy the top of conducting plate 53 and the inner wall direct contact's of conducting rod 8 needs, the area of contact of conducting plate 53 with conducting rod 8 has been increased, the test effect has been improved.

For the conducting rod 8 with the overlarge inner diameter, when the conducting plate 53 abuts against the inner wall of the conducting rod 8, the top of the conducting plate 53 abuts against the inner wall of the conducting rod 8, under the combined action of the first resetting piece 6, the second resetting piece 7 and the elastic block 52, the first resetting piece 6 and the second resetting piece 7 continue to apply an outward force to the movable block 51, the conducting plate 53 continues to move towards the direction close to the inner wall of the conducting rod 8, in the moving process, the middle position of the elastic block 52 is pressed at the top of the conducting plate 53, the contact area between the conducting plate 53 and the conducting rod 8, which is changed from the middle position to two sides continuously, is increased until the upper surface of the conducting plate 53 is completely fitted with the inner wall of the conducting rod 8, and then the test effect is improved.

To sum up, the utility model discloses can replace original adoption to press from both sides tight plum blossom contact and carry out the detection mode that resistance tested, direct contact and conducting rod contact, test data is accurate and convenient, need not polish the oxide layer repeatedly, labour saving and time saving and convenient operation.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A circuit breaker loop resistance test clamp comprises a first clamp arm and a second clamp arm which are hinged with each other and are in a scissors shape, wherein handles are fixedly arranged at one ends of the first clamp arm and the second clamp arm which are positioned on the same side; it is characterized in that the preparation method is characterized in that,

connecting parts are arranged on the first clamping arm and the second clamping arm and are positioned at one ends far away from the handle, detecting mechanisms are hinged to the two connecting parts, and a first reset piece is detachably arranged between the two detecting mechanisms;

first arm lock with demountable installation has the second to reset between the second arm lock and is located two between the handle.

2. The circuit breaker loop resistance test clip of claim 1, wherein said two sensing mechanisms are identical in structure and are arranged in pairs, each comprising:

with connecting portion articulated movable block, the outside demountable installation of movable block has the elasticity piece, the outside fixed mounting of elasticity piece has the current conducting plate.

3. The circuit breaker loop resistance test clip of claim 2, wherein a positioning portion for fixing the first reset piece is convexly provided on an inner side of the movable block.

4. The circuit breaker loop resistance test clip of claim 2, wherein the movable block is provided with at least one receiving groove at the outside thereof, and the elastic block is provided with a plurality of limiting protrusions at the outside thereof, wherein the number of the limiting protrusions is the same as that of the receiving grooves and the limiting protrusions are matched with the receiving grooves.

5. The circuit breaker loop resistance test clip of claim 4, wherein the number of receiving slots is two.

6. The circuit breaker loop resistance test clip of claim 2, wherein the resilient block is made of rubber or silicone.

7. The circuit breaker loop resistance test clip of claim 2, wherein an outer side of the conductive plate is configured in an arc.

8. The circuit breaker loop resistance test clip of claim 2, wherein the conductive plate has a post protruding from an inner surface thereof and located at an end adjacent to the handle.

9. The circuit breaker loop resistance test clip of claim 2, wherein the conductive plate is formed of copper.

10. The circuit breaker circuit resistance test clip of claim 1, wherein the first and second reset members are torsion springs.

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