Test tool for pole-mounted circuit breaker

Abstract

The utility model discloses a testing tool for a pole-mounted circuit breaker, and belongs to the technical field of circuit breakers. The testing tool for the pole-mounted circuit breaker comprises a first supporting frame, a second supporting frame and a sensor, the first supporting frame is provided with a plurality of mounting positions in the first direction, the circuit breaker is provided with two mounting holes, two fasteners can selectively penetrate through one mounting position, and the two fasteners are correspondingly connected with the two mounting holes, so that the first supporting frame is connected with the circuit breaker; the second supporting frame is arranged on the first supporting frame, and the mounting position of the second supporting frame can be adjusted on the first supporting frame in the second direction; the sensor is arranged on the second supporting frame, a probe of the sensor can move in the third direction, the probe is connected with an insulating pull rod of the circuit breaker and can be matched with the circuit breakers of different manufacturers, data tested by the sensor are more accurate and reliable, and the testing tool of the sensor is wider in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a test tooling for an on-pole circuit breaker. Background Art

[0002] At present, when outdoor circuit breakers leave the factory in the industry, the following characteristic parameters need to be obtained, such as closing and opening speeds, closing and opening times, bounce, synchronization and other parameters, so as to characterize that the circuit breaker is within the standard range specified by the technical requirements. For the above requirements, sensors are needed to monitor the displacement-time characteristics of the moving contact during the closing and opening processes. Due to slight differences in the structures of ZW32 type circuit breakers of each manufacturer, when actually performing characteristic tests, the sensors of the tester cannot be well adapted to the circuit breaker, and effective connections cannot be formed or the connections are unreliable. Content of the Utility Model

[0003] The purpose of the utility model is to provide a test tooling for an on-pole circuit breaker, which can be adapted to circuit breakers of different manufacturers, make the data measured by the sensors more accurate and reliable, and the test tooling of the sensors has a wider application range.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A test tooling for an on-pole circuit breaker, comprising:

[0006] A first support frame, wherein a plurality of mounting positions are arranged on the first support frame along a first direction, the circuit breaker is provided with two mounting holes, and two fasteners can alternatively pass through one of the mounting positions, and the two fasteners are correspondingly connected to the two mounting holes, so as to connect the first support frame with the circuit breaker;

[0007] A second support frame, which is arranged on the first support frame, and the second support frame can adjust its mounting position on the first support frame along a second direction;

[0008] A sensor, which is arranged on the second support frame, and the probe of the sensor can move along a third direction, and the probe is connected to the insulating pull rod of the circuit breaker.

[0009] In some possible implementation manners, a transition piece is further included, and the transition piece is detachably connected to the probe and the insulating pull rod respectively.

[0010] In some possible embodiments, the adapter plate includes an intermediate connecting portion, a first connecting portion and a second connecting portion connected to both ends of the intermediate connecting portion. The first connecting portion and the second connecting portion are parallel to each other. The first connecting portion is provided with a first through hole, and the second connecting portion is provided with a second through hole. The probe passes through the first through hole and is threadedly connected to a nut, and a screw passes through the second through hole and is threadedly connected to a threaded hole on the insulating pull rod.

[0011] In some possible embodiments, it further includes a clamping member connected to the second support frame, and the clamping member clamps the sensor.

[0012] In some possible embodiments, the clamping members are arranged on both sides of the sensor so that the sensor is clamped between the two clamping members.

[0013] In some possible embodiments, the second support frame is provided with a plurality of mounting holes along the third direction, and a fastener is selectively mounted in the mounting hole so that the clamping member is connected to the second support frame through the fastener.

[0014] In some possible embodiments, the second support frame is an L-shaped plate, including a first mounting plate and a second mounting plate connected to each other. The sensor is connected to a side of the first mounting plate facing away from the second mounting plate. The second mounting plate is provided with a second long hole extending along the second direction, and a fastener passes through the second long hole and is connected to the first support frame.

[0015] In some possible embodiments, the mounting position includes two first long holes formed in the first support frame, and the first long holes extend along the first direction. Two fasteners correspondingly pass through the two first long holes.

[0016] In some possible embodiments, the two first long holes are arranged on both sides of the second support frame along the first direction.

[0017] In some possible embodiments, the first support frame is a long strip plate made of carbon steel, and the thickness is 12 mm - 16 mm.

[0018] Advantages of the present utility model:

[0019] A test tool for a pole-mounted circuit breaker provided by the present utility model selects a suitable installation position for the fastener according to the distance between two installation holes of different circuit breakers. The fastener passes through the installation position and is connected to the installation hole to fix the circuit breaker to the test tool; the probe of the sensor is connected to the insulating pull rod of the circuit breaker. When the circuit breaker closes and opens, the probe moves along the third direction accordingly, so as to measure the displacement of the moving contact during the closing and opening processes through the sensor, achieving the capture and transmission of displacement parameters. The tester has a timing function and can record the closing and opening times, thereby monitoring the displacement-time characteristics of the moving contact during the closing and opening processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the test tool for the pole-mounted circuit breaker provided by the specific embodiment of the present utility model;

[0021] Figure 2 is a top view of the test tool for the pole-mounted circuit breaker provided by the specific embodiment of the present utility model;

[0022] Figure 3 is a front view of the test tool for the pole-mounted circuit breaker provided by the specific embodiment of the present utility model.

[0023] In the figure:

[0024] 1. First support frame; 11. First long hole; 2. Second support frame; 21. First mounting plate; 22. Second mounting plate; 221. Second long hole; 3. Sensor; 31. Probe; 4. Adapter plate; 41. Intermediate connection part; 42. First connection part; 43. Second connection part; 431. Second through hole; 5. Clamping piece; 6. First bolt; 7. Second bolt; 100. Circuit breaker. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the technical problems solved by the present utility model, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0028] As Figures 1-3 shown, this embodiment provides a test tooling for a pole-mounted circuit breaker, which includes a first support frame 1, a second support frame 2, and a sensor 3. The first support frame 1 is provided with a plurality of mounting positions along a first direction. The circuit breaker 100 is provided with two mounting holes. Two fasteners can alternatively pass through one mounting position, and the two fasteners are correspondingly connected to the two mounting holes to connect the first support frame 1 to the circuit breaker 100. The second support frame 2 is arranged on the first support frame 1, and the second support frame 2 can adjust its mounting position along a second direction on the first support frame 1. The sensor 3 is arranged on the second support frame 2, and the probe 31 of the sensor 3 can move along a third direction. The probe 31 is connected to the insulating pull rod of the circuit breaker 100. In this embodiment, the first direction is the x-direction, the second direction is the y-direction, and the third direction is the z-direction. The first direction, the second direction, and the third direction are perpendicular to each other pairwise.

[0029] According to the spacing between the two mounting holes of different circuit breakers 100, the fasteners select the correspondingly adapted mounting positions. The fasteners pass through the mounting positions and are connected to the mounting holes to fix the circuit breaker 100 to the test tooling; the probe 31 of the sensor 3 is connected to the insulating pull rod of the circuit breaker 100. When the circuit breaker 100 closes and opens, the probe 31 moves along the third direction accordingly, so as to measure the displacement of the moving contact during the closing and opening process through the sensor 3, achieving the capture and transmission of the displacement parameter. The tester has a timing function and can record the closing and opening time, thereby monitoring the displacement-time characteristic of the moving contact during the closing and opening process. The timing function of the tester is a prior art and will not be elaborated herein.

[0030] By setting a plurality of mounting positions in the first direction, it is possible to adapt to the circuit breaker 100 with mounting holes having different spacings along the first direction. The sensor 3 is mounted on the second support frame 2, and the second support frame 2 can adjust the mounting position along the second direction, so that the sensor 3 can adjust the mounting position along the second direction, and it can adapt to the insulating pull rods with different positions along the second direction. Thus, through the adjustment of the first support plate and the second support plate, it can be adapted to the circuit breakers 100 of different manufacturers, making the data measured by the sensor 3 more accurate and reliable, the test tooling has a wider application range, and can meet the use of a variety of products.

[0031] The test tooling for the pole-mounted circuit breaker further includes an adapter piece 4. The adapter piece 4 is detachably connected to the probe 31 and the insulating pull rod respectively. While being applicable to the ZW32 type spring circuit breaker, by only changing the adapter piece 4, it can be applicable to the same type of permanent magnet pole-mounted circuit breaker, further improving the versatility. Specifically, the adapter piece 4 includes an intermediate connecting portion 41 and a first connecting portion 42 and a second connecting portion 43 connected to both ends of the intermediate connecting portion 41. The first connecting portion 42 and the second connecting portion 43 are parallel to each other. The first connecting portion 42 is provided with a first through hole, and the second connecting portion 43 is provided with a second through hole 431. The probe 31 passes through the first through hole and is threadedly connected to the nut, and the screw passes through the second through hole 431 and is threadedly connected to the threaded hole on the insulating pull rod. Through the nut and the screw, the detachable connection is achieved. The size of the adapter piece 4 and the opening positions of the first through hole and the second through hole 431 can be set according to different circuit breakers 100.

[0032] The test tooling for the pole-mounted circuit breaker further includes a clamping member 5 connected to the second support frame 2. The clamping member 5 clamps the sensor 3 to achieve the installation of the sensor 3. In one embodiment, the clamping member 5 is provided on both sides of the sensor 3 so that the sensor 3 is clamped between the two clamping members 5, and the position of the clamping member 5 can be adjusted according to the size of different sensors 3, with good applicability and convenient installation. In another embodiment, the clamping member 5 can be provided with a limiting groove, and the sensor 3 is arranged in the limiting groove, and the installation is reliable. Further, the clamping member 5 is connected to the second support frame 2 through fasteners such as screws, which is convenient for disassembly and assembly. The second support frame 2 is provided with a plurality of mounting holes along the third direction, and the fasteners are selectively mounted in the mounting holes, so that the clamping member 5 is connected to the second support frame 2 through the fasteners, and it can be further applicable to different sensors 3.

[0033] The second support frame 2 is an L-shaped plate, including a first mounting plate 21 and a second mounting plate 22 connected to each other. The sensor 3 is connected to the side of the first mounting plate 21 away from the second mounting plate 22 to prevent structural interference. The second mounting plate 22 is provided with a second long hole 221, and the second long hole 221 extends along the second direction. The fastener, i.e., the second bolt 7, is passed through the second long hole 221 and connected to the first support frame 1, so that the installation position of the second mounting plate 22 relative to the first support frame 1 can be continuously adjusted, and the second mounting plate 22 and the sensor 3 on the second mounting plate 22 can also be rotated at a certain angle, so that the probe 31 is in the best position, so as to prevent the sensor 3 from being stuck and damaged, and has good adaptability.

[0034] The mounting position includes two first elongated holes 11 opened on the first support frame 1, the first elongated holes 11 extend along the first direction, and two fasteners, i.e., two first bolts 6, are correspondingly penetrated through the two first elongated holes 11. The first elongated holes 11 can continuously form a mounting position, which is suitable for circuit breakers 100 with mounting holes of different widths and adapts to more products. The two first elongated holes 11 are arranged on both sides of the second support frame 2 along the first direction to improve the installation stability.

[0035] The first support frame 1 is a long strip of carbon steel with a thickness of 12mm-16mm, specifically 12mm, 14mm or 16mm, etc. Thick carbon steel plate (galvanized) is selected. When fastened reliably, the system will not bounce due to its own low rigidity, and the fixation is more stable, and the test data is more reliable.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A test tool for a pole-mounted circuit breaker, characterized in that Comprising: A first support frame (1), the first support frame (1) is provided with a plurality of mounting positions along a first direction, the circuit breaker (100) is provided with two mounting holes, and two fasteners can alternatively pass through one of the mounting positions, and the two fasteners are correspondingly connected to the two mounting holes to connect the first support frame (1) to the circuit breaker (100); A second support frame (2), the second support frame (2) is arranged on the first support frame (1), and the second support frame (2) can adjust its mounting position on the first support frame (1) along a second direction; A sensor (3), the sensor (3) is arranged on the second support frame (2), and the probe (31) of the sensor (3) can move along a third direction, and the probe (31) is connected to the insulating pull rod of the circuit breaker (100).

2. The test tooling for the pole-mounted circuit breaker according to claim 1, characterized in that, It further includes an adapter plate (4), and the adapter plate (4) is detachably connected to the probe (31) and the insulating pull rod respectively.

3. The test tooling for the pole-mounted circuit breaker according to claim 2, characterized in that, The adapter plate (4) includes an intermediate connecting portion (41) and a first connecting portion (42) and a second connecting portion (43) connected to both ends of the intermediate connecting portion (41), the first connecting portion (42) and the second connecting portion (43) are parallel to each other, the first connecting portion (42) is provided with a first through hole, the second connecting portion (43) is provided with a second through hole (431), the probe (31) passes through the first through hole and is threadedly connected to a nut, and a screw passes through the second through hole (431) and is threadedly connected to a threaded hole on the insulating pull rod.

4. The test tooling for the pole-mounted circuit breaker according to claim 1, characterized in that, It further includes a clamping member (5) connected to the second support frame (2), and the clamping member (5) clamps the sensor (3).

5. The test tooling for the pole-mounted circuit breaker according to claim 4, characterized in that The clamping member (5) is arranged on both sides of the sensor (3) so that the sensor (3) is clamped between the two clamping members (5).

6. The test tooling for the pole-mounted circuit breaker according to claim 4, characterized in that, The second support frame (2) is provided with a plurality of mounting holes along the third direction, and a fastener is alternatively mounted in the mounting hole so that the clamping member (5) is connected to the second support frame (2) through the fastener.

7. The test tooling for the pole-mounted circuit breaker according to claim 1, characterized in that, The second support frame (2) is an L-shaped plate, including a first mounting plate (21) and a second mounting plate (22) connected to each other, the sensor (3) is connected to a side of the first mounting plate (21) facing away from the second mounting plate (22), the second mounting plate (22) is provided with a second long hole (221), the second long hole (221) extends along the second direction, and a fastener passes through the second long hole (221) and is connected to the first support frame (1).

8. The test tooling for the pole-mounted circuit breaker according to claim 1, characterized in that, The mounting position includes two first long holes (11) opened on the first support frame (1), the first long holes (11) extend along the first direction, and two fasteners correspondingly pass through the two first long holes (11).

9. The test tooling for the pole-mounted circuit breaker according to claim 8, characterized in that, The two first long holes (11) are arranged on both sides of the second support frame (2) along the first direction.

10. The test tooling for the pole-mounted circuit breaker according to any one of claims 1-9, characterized in that, The first support frame (1) is a long strip plate made of carbon steel, with a thickness of 12 mm - 16 mm.

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