Circuit breaker testing device

Abstract

The utility model discloses a breaker testing device. The breaker testing device comprises a pedestal; the shifting base and the shifting driving device are both arranged on the base, the output end of the shifting driving device is connected with the shifting base, and the shifting base can slide up and down relative to the base under the driving of the shifting driving device; the shifting sliding seat is arranged on the shifting base; an upper limiting block and a lower limiting block are arranged on the shifting base, and the shifting sliding seat can slide up and down between the upper limiting block and the lower limiting block; a switching-off shifting block and a switching-on shifting block are arranged on the shifting sliding seat, the switching-off shifting block is located above the switching-on shifting block, and a gap for accommodating a handle of a circuit breaker to be tested is formed between the switching-off shifting block and the switching-on shifting block; the first end of the force sensor is arranged on the shifting base, and the other end of the force sensor is arranged on the shifting sliding seat. The device provided by the utility model can detect the force in the whole process of opening and closing shifting, so that the shifting force required by the circuit breaker can be detected in time when the shifting force is abnormal, and the potential safety hazard is reduced.

Description

Technical Field

[0001] This utility model relates to the field of testing fixture technology, and in particular to a circuit breaker testing device. Background Technology

[0002] Low-voltage circuit breakers are commonly used protective electrical appliances and are one of the important protection and control components in low-voltage electrical systems. They are widely used in industrial and mining enterprises, high-rise buildings, modern residential areas, and locomotive and subway systems. Circuit breakers have fault protection functions such as overcurrent, reverse current, short circuit, and undervoltage protection. They can be used to protect AC and DC electrical equipment, and can also be used in circuits that are not frequently operated or switched. They are indispensable switching elements for circuits and systems.

[0003] The reliable opening and closing of circuit breakers is crucial for circuit safety; therefore, all circuit breakers must undergo service life testing. Currently, the primary method for service life testing focuses on whether the circuit breaker can still perform its circuit-breaking function. However, this method cannot detect problems at the onset of malfunctions, and the service life measured in this way may contain safety hazards. Therefore, there is an urgent need for a testing device that can more accurately detect circuit breaker malfunctions and reduce potential safety risks. Utility Model Content

[0004] Therefore, in order to solve the problems in the prior art, this utility model provides a testing device that can detect the force generated by the lever during the entire process of closing and opening a circuit breaker, and can accurately and timely detect circuit breaker abnormalities.

[0005] Therefore, this utility model provides a circuit breaker testing device, comprising:

[0006] Base;

[0007] Both the toggle base and the toggle drive device are mounted on the base. The output end of the toggle drive device is connected to the toggle base, and the toggle base can slide up and down relative to the base under the drive of the toggle drive device.

[0008] A sliding block is mounted on a sliding base. The sliding base is equipped with an upper limit block and a lower limit block. The sliding block can slide up and down between the upper limit block and the lower limit block. The sliding block is equipped with a tripping block and a closing block, with the tripping block located above the closing block. There is a gap between the tripping block and the closing block to accommodate the handle of the circuit breaker to be tested.

[0009] A force sensor, with one end set on the toggle base and the other end set on the toggle slide;

[0010] When the handle of the circuit breaker under test is placed between the opening and closing levers, if the driving device drives the base to slide downward relative to the base until the upper limit block abuts against the sliding block, the sliding block slides down, causing the opening lever to move the handle of the circuit breaker under test. The force sensor measures the force required for the circuit breaker under test to open. Conversely, the force sensor measures the force required for the circuit breaker under test to close.

[0011] Optionally, the toggle base is provided with at least one sliding rod, and the upper limit block and the lower limit block are the upper and lower fixed plates of the sliding rod, respectively; the toggle slide is sleeved on the sliding rod.

[0012] Optionally, the base and the toggle base are respectively provided with corresponding slide rails and sliders.

[0013] Optionally, the toggle base is provided with a positioning baffle, and the base is provided with at least one positioning sensor.

[0014] Optionally, a photoelectric sensor is provided on the sliding block, with the sensing end of the photoelectric sensor facing the gap between the opening and closing blocks. When the handle of the circuit breaker under test is placed between the opening and closing blocks, the photoelectric sensor emits a sensing signal.

[0015] Optionally, the toggle drive device includes a drive motor, a drive wheel, a synchronous belt, a driven wheel, and a lead screw. The output end of the drive motor is connected to the drive wheel, the driven wheel is connected to the drive wheel via the synchronous belt, and the lead screw is connected to the driven wheel and rotates synchronously with the driven wheel. The toggle base is mounted on the lead screw.

[0016] The technical solution provided by this utility model has the following advantages:

[0017] The circuit breaker testing device provided by this utility model, by setting a sliding base that can slide relative to the base, and a sliding slide that can slide relative to the sliding base but whose sliding is limited to the upper limit block and the lower limit block, enables the towing drive device to toggle the circuit breaker under test by sequentially driving the sliding base, the sliding slide, and the two toggle blocks (opening toggle block and closing toggle block) on the sliding slide. At the same time, it also enables the force sensor set between the sliding base and the sliding slide to detect the force throughout the opening and closing toggle process, so that it can be detected in time when the required toggle force of the circuit breaker is abnormal, which greatly reduces the safety hazards of the circuit breaker. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the circuit breaker testing device provided in this embodiment of the utility model;

[0020] Figure 2 and Figure 3 A partial exploded view of the circuit breaker testing device provided in this embodiment of the utility model;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1-Base; 11-Slide rail;

[0023] 2-Toggle base; 21-Upper limit block; 22-Lower limit block; 23-Slider; 24-Sliding rod; 25-Positioning baffle;

[0024] 3-Toggle drive device;

[0025] 4-Actuating slide block; 41-Opening toggle block; 42-Closing toggle block; 43-Cover plate;

[0026] 5-Force sensor;

[0027] 6-Photoelectric sensor;

[0028] 7-Positioning sensor. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] Please refer to Figures 1-3 This is a schematic diagram of a circuit breaker testing device provided in an embodiment of the present invention. The circuit breaker testing device includes a base 1, a toggle base 2, a toggle drive device 3, a toggle slide 4, and a force sensor 5. The toggle base 2 and the toggle drive device 3 are both disposed on the base 1. The output end of the toggle drive device 3 is connected to the toggle base 2, and the toggle base 2 can slide up and down relative to the base 1 under the drive of the toggle drive device 3. The toggle slide 4 is disposed on the toggle base 2. The toggle base 2 is provided with an upper limit block 21 and a lower limit block 22, and the toggle slide 4 can slide up and down between the upper limit block 21 and the lower limit block 22. The toggle slide 4 is provided with a tripping block 41 and a closing block 42, and the tripping block 41 is located above the closing block 42. There is a gap between the tripping block 41 and the closing block 42 to accommodate the handle of the circuit breaker to be tested. The first end of the force sensor 5 is disposed on the toggle base 2, and the other end is disposed on the toggle slide 4.

[0034] In this embodiment, when the handle of the circuit breaker under test is placed between the opening block 41 and the closing block 42, if the toggle drive device 3 drives the toggle base 2 to slide downward relative to the base 1 until the upper limit block 21 abuts against the toggle slide 4, the toggle slide 4 slides down, driving the opening block 41 to move the handle of the circuit breaker under test. The force sensor 5 measures the force required for the circuit breaker under test to open. Conversely, if the toggle drive device 3 drives the toggle base 2 to slide upward relative to the base 1 until the lower limit block 22 abuts against the toggle slide 4, the toggle slide 4 slides upward, driving the closing block 42 to move the handle of the circuit breaker under test. The force sensor 5 measures the force required for the circuit breaker under test to close.

[0035] Those skilled in the art will understand that, in order to prevent excessive sliding distance of the sliding block 4 relative to the sliding base 2 from damaging the force sensor 5, such as... Figure 1 As shown, the distance between the upper limit block 21 and the lower limit block 22 is only slightly greater than the vertical height of the sliding block 4.

[0036] In a specific implementation, the base 1 and the toggle base 2 can be respectively equipped with corresponding slide rails 11 and sliders 23. In a specific implementation, there can be two slide rails 11 and two sliders 23. In this case, the toggle base 2 can include a mounting base plate, which is fixed on the two sliders 23. Correspondingly, the upper limit block 21 and the lower limit block 22 are fixed on the mounting base plate.

[0037] In a specific implementation, the actuating base 2 can be equipped with at least one sliding rod 24, with the upper limit block 21 and the lower limit block 22 serving as the upper and lower fixing plates of the sliding rod 24, respectively, and the actuating slide 4 sleeved on the sliding rod 24. In a specific implementation, such as... Figure 2 and Figure 3 As shown, one end of the force sensor 5 can be mounted on the upper or lower fixed plate. In this case, a mounting groove can be provided on the sliding block 4 corresponding to the force sensor 5. The force sensor 5 is positioned at the bottom of the mounting groove. Furthermore, to prevent the force sensor 5 from being disturbed, as shown... Figure 2 As shown, a cover plate 43 can also be installed on the mounting slot.

[0038] In practice, if the sliding rod 24 is a cylindrical rod, there may be two or more sliding rods 24; if the sliding rod 24 is a rod of other shapes, there may be only one.

[0039] As an optional specific implementation, in order to improve the practicality of the circuit breaker testing device in this embodiment, such as... Figure 1As shown, a photoelectric sensor 6 can be installed on the sliding block 4. The sensing end of the photoelectric sensor 6 faces the gap between the opening block 41 and the closing block 42. When the handle of the circuit breaker to be tested is placed between the opening block 41 and the closing block 42, the photoelectric sensor 6 emits a sensing signal.

[0040] In specific implementation, such as Figure 1 As shown, a positioning baffle 25 is provided on the base 2, and at least one positioning sensor 7 is provided on the base 1, so as to emit a sensing signal when the base 2 is slid to a preset position; specifically, as shown... Figure 1 As shown, the positioning sensors 7 can be set to three positions: top, middle, and bottom, to detect whether the toggle base 2 has reached the top position, the initial position (to wait for the circuit breaker to be tested to arrive), and the minimum position, respectively.

[0041] As an optional specific implementation, the toggle drive device 3 in this embodiment can be configured to include a drive motor, a drive wheel, a synchronous belt, a driven wheel, and a lead screw. The output end of the drive motor is connected to the drive wheel, the driven wheel is connected to the drive wheel through the synchronous belt, and the lead screw is connected to the driven wheel and rotates synchronously with the driven wheel. The toggle base 2 is disposed on the lead screw.

[0042] Of course, the toggle drive device 3 in this embodiment can also be set to a cylinder or other drive device, as long as it can drive the toggle base 2 to slide up and down.

[0043] In summary, the circuit breaker testing device in this embodiment, by setting a sliding base 2 that can slide relative to the base 1, and a sliding slide 4 that can slide relative to the sliding base 2 but whose sliding is limited between the upper limit block 21 and the lower limit block 22, enables the toggle drive device 3 to toggle the circuit breaker under test by sequentially driving the sliding base 2, the sliding slide 4, and the two toggle blocks (opening toggle block 41 and closing toggle block 42) on the sliding slide 4. At the same time, it also enables the force sensor 5 set between the sliding base 2 and the sliding slide 4 to detect the force throughout the opening and closing toggle processes, so that it can detect abnormalities in the required toggle force of the circuit breaker in a timely manner, greatly reducing the safety hazards of the circuit breaker.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A circuit breaker testing device, characterized by, The utility model relates to a circuit breaker testing device, which comprises: a base; a dial base and a dial driving device, both of which are arranged on the base, the output end of the dial driving device is connected with the dial base, and the dial base can slide up and down relative to the base under the driving of the dial driving device; a dial sliding seat arranged on the dial base, the dial base is provided with upper and lower limit blocks, the dial sliding seat can slide up and down between the upper and lower limit blocks, the dial sliding seat is provided with a split-gear dial block and a close-gear dial block, the split-gear dial block is located above the close-gear dial block, and the split-gear dial block and the close-gear dial block have a gap for accommodating the handle of a circuit breaker to be tested; a force sensor, one end of which is arranged on the dial base and the other end is arranged on the dial sliding seat; when the handle of the circuit breaker to be tested is placed between the split-gear dial block and the close-gear dial block, if the dial driving device drives the dial base to slide downward relative to the base until the upper limit block abuts against the dial sliding seat, the dial sliding seat slides downward, the split-gear dial block drives the handle of the circuit breaker to be tested, and the force sensor measures the force required during the splitting of the circuit breaker to be tested; on the contrary, the force sensor measures the force required during the closing of the circuit breaker to be tested.

2. The circuit breaker testing device of claim 1, wherein, The dial base is provided with at least one sliding rod, and the upper and lower limit blocks are respectively the upper and lower fixed plates of the sliding rod; the dial sliding seat is sleeved on the sliding rod.

3. The circuit breaker testing device of claim 1, wherein, The base and the dial base are respectively provided with corresponding sliding rails and sliding blocks.

4. The circuit breaker testing device of claim 3, wherein, The dial base is provided with a positioning baffle, and the base is provided with at least one positioning sensor.

5. The circuit breaker testing device of claim 1, wherein, The dial sliding seat is provided with a photoelectric sensor, the sensing end of the photoelectric sensor faces the gap between the split-gear dial block and the close-gear dial block, and when the handle of the circuit breaker to be tested is placed between the split-gear dial block and the close-gear dial block, the photoelectric sensor sends a sensing signal.

6. The circuit breaker testing device of claim 1, wherein, The dial driving device comprises a driving motor, a driving wheel, a synchronous belt, a driven wheel and a lead screw, the output end of the driving motor is connected with the driving wheel, the driven wheel is connected with the driving wheel through the synchronous belt, the lead screw is connected with the driven wheel and rotates synchronously with the driven wheel; and the dial base is arranged on the lead screw.

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