Circuit breaker detection device
By designing a circuit breaker testing device and utilizing a testing mechanism and a fixing mechanism, the problem of low accuracy in measuring circuit breaker opening distance and overtravel was solved, achieving high-precision measurement and performance evaluation.
Patent Information
- Application Number
- CN202520424163.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-12
AI Technical Summary
The accuracy of current circuit breaker opening distance and overtravel measurement is low.
A circuit breaker testing device is designed, including a testing mechanism and a first fixing mechanism. The testing mechanism is installed below the solid-sealed pole of the circuit breaker through the first fixing mechanism. The testing mechanism detects the circuit breaker data and transmits it to the equipment terminal to achieve accurate measurement of opening distance and overtravel.
It improves the measurement accuracy of circuit breaker opening distance and overtravel, and enables intuitive reception of circuit breaker data to comprehensively evaluate its performance.
Smart Images

Figure CN223955758U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to circuit breaker technical field especially relates to a circuit breaker detection device. BACKGROUND
[0002] The circuit breaker is the key equipment in the power system, and the opening distance (the distance between the contacts after the opening) and the overtravel (the movement distance of the contacts after the closing) of the contacts directly affect the arc extinguishing performance, the contact reliability and the equipment life.
[0003] In the prior art, the opening distance and the overtravel of the circuit breaker are usually measured by manual measurement or multimeter method, and the measurement precision is low.
[0004] Therefore, a circuit breaker detection device is needed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a circuit breaker detection device to solve the problem of low measurement precision in the prior art.
[0006] According to the above idea, the technical scheme adopted by the utility model is as follows:
[0007] The circuit breaker detection device comprises:
[0008] a detection mechanism and a first fixing mechanism;
[0009] The first fixing mechanism is used for mounting the detection mechanism below the solid-sealed pole of the circuit breaker.
[0010] The detection mechanism is used for detecting the data of the circuit breaker and transmitting the processed data to the equipment terminal.
[0011] Preferably, one end of the first fixing mechanism penetrates the bottom plate of the circuit breaker and is connected to the solid-sealed pole, and the other end of the first fixing mechanism is connected to the detection mechanism.
[0012] Preferably, the circuit breaker detection device further comprises a second fixing mechanism, one end of the second fixing mechanism is connected to the bottom plate of the circuit breaker, and the other end of the second fixing mechanism is connected to the detection mechanism.
[0013] Preferably, the first fixing mechanism and the second fixing mechanism are respectively connected to different positions of the detection mechanism.
[0014] As preferred, the second fixing mechanism comprises a first fixing component, a second fixing component and a third fixing component, one end of the first fixing component is connected to the bottom plate of the circuit breaker, the other end of the first fixing component is connected to the third fixing component, one end of the second fixing component is connected to the detecting mechanism, the other end of the second fixing component is connected to the third fixing component.
[0015] As preferred, the first fixing component comprises a first connecting piece and a first fixing rod, a second fixing rod and a third fixing rod connected in sequence, one end of the second fixing rod away from the third fixing rod is abutted to the lower end surface of the bottom plate of the circuit breaker, one end of the first fixing rod away from the second fixing rod penetrates through the bottom plate of the circuit breaker, the first connecting piece is threadedly connected with the first fixing rod, and the first connecting piece is abutted to the upper end surface of the bottom plate of the circuit breaker, one end of the third fixing rod away from the second fixing rod is connected to the third fixing component.
[0016] As preferred, the second fixing component comprises a plurality of second connecting pieces, a fixing plate and a fourth fixing rod, the fixing plate is connected with the fourth fixing rod, the plurality of second connecting pieces are used for fixing the fixing plate to the side surface of the detecting mechanism, one end of the fourth fixing rod away from the fixing plate is connected with the third fixing component.
[0017] As preferred, the third fixing component comprises a fixing block, the fixing block is provided with a first mounting hole and a second mounting hole, one end of the third fixing rod away from the second fixing rod penetrates and is fixed in the first mounting hole, one end of the fourth fixing rod away from the fixing plate penetrates and is fixed in the second mounting hole.
[0018] As preferred, the third fixing component further comprises a plurality of third connecting pieces and a plurality of fourth connecting pieces.
[0019] The fixing block is provided with a plurality of first fixing holes, the plurality of first fixing holes are in communication with the first mounting hole, the plurality of third connecting pieces correspond to the plurality of first fixing holes one by one, the third connecting pieces are partially located in the corresponding first fixing holes, and the plurality of third connecting pieces are abutted to the third fixing rod.
[0020] The fixing block is further provided with a plurality of second fixing holes, the plurality of second fixing holes are in communication with the second mounting hole, the plurality of fourth connecting pieces correspond to the plurality of second fixing holes one by one, the fourth connecting pieces are partially located in the corresponding second fixing holes, and the plurality of fourth connecting pieces are abutted to the fourth fixing rod.
[0021] As preferred, the circuit breaker detection device further comprises a test vehicle, the circuit breaker is installed on the test vehicle, and a plurality of rollers are installed at the bottom of the test vehicle.
[0022] The circuit breaker detection device has the advantages that:
[0023] The utility model provides a kind of circuit breaker detection device, including detection mechanism and first fixed mechanism, first fixed mechanism is used to install detection mechanism below the solid seal pole of circuit breaker, detection mechanism is used to detect the data of circuit breaker, and processed data is transmitted to equipment terminal. Detection mechanism is connected below solid seal pole by first fixed mechanism, when circuit breaker opening and closing action is applied to sensor, detection mechanism can intuitively receive the data of circuit breaker, can accurately measure the opening distance and overtravel of circuit breaker, and measurement accuracy is higher. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be simply introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the utility model and these drawings without creative labor.
[0025] Figure 1 It is a structure diagram of the circuit breaker detection device provided by the embodiments of the utility model;
[0026] Figure 2 It is Figure 1 the enlarged view of A in Fig.
[0027] Figure 3 It is Figure 1 the enlarged view of B in Fig.
[0028] In the figure:
[0029] 1, detection mechanism; 11, signal line; 2, first fixed mechanism; 3, second fixed mechanism; 31, first fixed assembly; 311, first fixed rod; 312, second fixed rod; 313, third fixed rod; 314, first connecting piece; 32, second fixed assembly; 321, second connecting piece; 322, fixed plate; 323, fourth fixed rod; 33, third fixed assembly; 331, fixed block; 3311, second mounting hole; 3312, third connecting piece; 3313, fourth connecting piece; 4, test vehicle; 41, roller; 100, circuit breaker; 110, solid seal pole. DETAILED DESCRIPTION
[0030] To make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model will be further explained below in combination with the drawings and through specific embodiments. It can be understood that the specific embodiments described herein are merely used to explain the utility model and not limit the utility model. In addition, it should be noted that only parts related to the utility model are shown in the drawings for the convenience of description.
[0031] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0032] In the description of the utility model, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0033] In the utility model, unless explicitly defined and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature. In the description of the embodiment, if not specially stated, "a plurality of" specifically refers to two or more than two.
[0034] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description and have no special meaning.
[0035] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element.
[0036] The technical scheme of the utility model is further illustrated below in combination with the drawings and through specific embodiments.
[0037] The circuit breaker detection device can intuitively receive data of the circuit breaker, accurately measure opening distance and overtravel of the circuit breaker, and has high measurement accuracy.
[0038] As shown in Figure 1 The circuit breaker detection device comprises a detection mechanism 1 and a first fixing mechanism 2, the first fixing mechanism 2 is used for mounting the detection mechanism 1 below the solid-sealed pole 110 of the circuit breaker 100, the detection mechanism 1 is used for detecting data of the circuit breaker 100 and transmitting processed data to a device terminal (not shown in the figure). It can be understood that the detection mechanism 1 is connected below the solid-sealed pole 110 through the first fixing mechanism 2, when the circuit breaker opening and closing acts on the detection mechanism 1, the detection mechanism 1 can intuitively receive data of the circuit breaker 100 and transmit processed data to the device terminal, and can accurately measure opening distance and overtravel of the circuit breaker 100, and has high measurement accuracy.
[0039] It should be noted that the circuit breaker opening and closing refers to closing or opening the contact of the circuit breaker 100 through operation, so as to control the on-off of the circuit, which is prior art in the field, and will not be described herein.
[0040] For example, continuing to refer to Figure 1 , the detection mechanism 1 is provided with a signal line 11, the detection mechanism 1 is a displacement sensor, and the device terminal is a computer. In use, the inductor inside the displacement sensor first receives a signal and converts it into a measuring instrument, then the measuring data is transmitted to the computer through the measuring instrument and the signal line 11, not only can intuitively receive data of the circuit breaker 100, but also can accurately measure opening distance and overtravel of the circuit breaker 100, and can detect different periods of opening and closing, closing time and opening time, and comprehensively evaluate the performance of the circuit breaker 100.
[0041] Further, one end of the first fixing mechanism 2 penetrates through the bottom plate of the circuit breaker 100 and is connected to the solid-sealed pole 110, and the other end of the first fixing mechanism 2 is connected to the detection mechanism 1. It can be understood that the two ends of the first fixing mechanism 2 are connected with the solid-sealed pole 110 and the detection mechanism 1 respectively, realizing stable connection of the solid-sealed pole 110 and the detection mechanism 1, and convenient installation.
[0042] Exemplarily, the bottom of the solid-seal pole 110 is provided with a threaded stud (not shown in the figure), the first fixing mechanism 2 comprises an L-shaped piece (not shown in the figure) and a threaded sleeve (not shown in the figure), the vertical end of the L-shaped piece is provided with a thread, the threaded sleeve is connected to the threaded end of the L-shaped piece and the threaded stud at the same time, the horizontal end of the L-shaped piece is connected to the upper end surface of the detection mechanism 1, the installation is convenient, and the connection is stable. For the connection mode of the horizontal end of the L-shaped piece and the upper end surface of the detection mechanism 1, adhesion and the like can be adopted, which is not specifically limited in the embodiment.
[0043] Further, the circuit breaker detection device further comprises a second fixing mechanism 3, one end of the second fixing mechanism 3 is connected to the bottom plate (not shown in the figure) of the circuit breaker 100, and the other end is connected to the detection mechanism 1. It can be understood that, by arranging the second fixing mechanism 3, the relative stability between the detection mechanism 1 and the circuit breaker 100 is improved, which is beneficial to further improve the detection accuracy of the detection mechanism 1.
[0044] Further, as shown in Figure 1 , the first fixing mechanism 2 and the second fixing mechanism 3 are connected to different positions of the detection mechanism 1 respectively. It can be understood that, the first fixing mechanism 2 and the second fixing mechanism 3 are both used for fixing the detection mechanism 1, when the first fixing mechanism 2 and the second fixing mechanism 3 are connected to different positions of the detection mechanism 1, on the one hand, the connection difficulty of the first fixing mechanism 2 and the second fixing mechanism 3 and the detection mechanism 1 is reduced, on the other hand, the detection mechanism 1 can be fixed and limited in different directions, and the stability of the detection mechanism 1 is improved.
[0045] Further, as shown in Figure 1 , the second fixing mechanism 3 comprises a first fixing component 31, a second fixing component 32 and a third fixing component 33, one end of the first fixing component 31 is connected to the bottom plate of the circuit breaker 100, the other end of the first fixing component 31 is connected to the third fixing component 33, one end of the second fixing component 32 is connected to the detection mechanism 1, and the other end of the second fixing component 32 is connected to the third fixing component 33. It can be understood that, by arranging the first fixing component 31, the second fixing component 32 and the third fixing component 33, the selectability of the connection position of the second fixing component 32 and the detection mechanism 1 is improved, and the installation is convenient.
[0046] Further, as shown in Figures 1-3As shown, the first fixing assembly 31 comprises a first connecting piece 314 and sequentially connects a first fixing rod 311, a second fixing rod 312 and a third fixing rod 313, one end of the second fixing rod 312 away from the third fixing rod 313 abuts against the lower end surface of the bottom plate of the circuit breaker 100, one end of the first fixing rod 311 away from the second fixing rod 312 penetrates through the bottom plate of the circuit breaker 100, the first connecting piece 314 is threadedly connected with the first fixing rod 311, and the first connecting piece 314 abuts against the upper end surface of the bottom plate of the circuit breaker 100, and one end of the third fixing rod 313 away from the second fixing rod 312 is connected to the third fixing assembly 33. Specifically, the first fixing rod 311, the second fixing rod 312 and the third fixing rod 313 are sequentially connected along the vertical direction and have coinciding axes. It can be understood that, by setting the first fixing rod 311, the second fixing rod 312 and the third fixing rod 313, the circuit breaker 100 is connected together, and the second fixing rod 312 cooperates with the first connecting piece 314 and the first fixing rod 311 to clamp the bottom plate of the circuit breaker 100 together, thereby realizing the stable connection between the second fixing mechanism 3 and the circuit breaker 100.
[0047] As shown in the drawings, Figure 3 As shown, the bottom plate of the circuit breaker 100 is provided with a through hole (not shown in the drawings) in the vertical direction, the first fixing rod 311 and the third fixing rod 313 have the same diameter and the diameter is smaller than that of the through hole, and the diameter of the second fixing rod 312 is greater than that of the through hole. When the first fixing rod 311 penetrates into the through hole, the second fixing rod 312 abuts against the lower end surface of the bottom plate of the circuit breaker 100, which facilitates the assembly of the first connecting piece 314 and saves labor during installation.
[0048] As shown in the drawings, Figure 2 As shown, the second fixing assembly 32 comprises a plurality of second connecting pieces 321, a fixing plate 322 and a fourth fixing rod 323, the fixing plate 322 is connected with the fourth fixing rod 323, the second connecting piece 321 is used for fixing the fixing plate 322 to the side surface of the detection mechanism 1, and one end of the fourth fixing rod 323 away from the fixing plate 322 is connected with the third fixing assembly 33. Specifically, the fourth fixing rod 323 is perpendicular to the first fixing rod 311. It can be understood that, by setting the second connecting piece 321, the fixing plate 322 and the fourth fixing rod 323, the connection between the second fixing mechanism 3 and the detection mechanism 1 is realized, the fourth fixing rod 323 is perpendicular to the first fixing rod 311 to realize the reversing of the second fixing mechanism 3, so that the second fixing mechanism 3 can be connected to the side surface of the detection mechanism 1, and the plurality of second connecting pieces 321 simultaneously connect the detection mechanism 1 and the fixing plate 322, thereby realizing stable connection.
[0049] Exemplarily, the fixing plate 322 and the detection mechanism 1 are respectively provided with a plurality of corresponding connecting holes, the second connecting member 321 is a bolt with a nut, the screw rod of the bolt is simultaneously arranged in the corresponding two fixing holes, the head of the bolt abuts against the detection mechanism 1, and the bolt abuts against the side of the fixing plate 322 away from the detection mechanism 1, so as to clamp and fix the fixing plate 322 and the detection mechanism 1, which is stable in connection and convenient to disassemble.
[0050] Of course, in other embodiments, other fixing modes can also be adopted, for example, the detection mechanism 1 and the fixing plate 322 are directly fixed by means of bonding.
[0051] Further, as shown in Figure 1 and Figure 2 , the third fixing assembly 33 comprises a fixing block 331, the fixing block 331 is provided with a first mounting hole (not shown in the figure) and a second mounting hole 3311, the third fixing rod 313 is arranged in and fixed in the first mounting hole at the end away from the second fixing rod 312, and the fourth fixing rod 323 is arranged in and fixed in the second mounting hole 3311 at the end away from the fixing plate 322. It can be understood that the third fixing assembly 33 is used for connecting the third fixing rod 313 and the fourth fixing rod 323, that is, connecting the first fixing assembly 31 and the second fixing assembly 32, which is beneficial to the reversing of the second fixing mechanism 3 and convenient to disassemble and transport.
[0052] Further, the third fixing assembly 33 further comprises a plurality of third connecting pieces 3312 and a plurality of fourth connecting pieces 3313. The fixing block 331 is provided with a plurality of first fixing holes (not shown in the figure), the plurality of first fixing holes are in communication with the first mounting hole, the plurality of third connecting pieces 3312 correspond to the plurality of first fixing holes one by one, the third connecting piece 3312 is partially located in the corresponding first fixing hole, and the plurality of third connecting pieces 3312 abut against the third fixing rod 313; the fixing block 331 is further provided with a plurality of second fixing holes (not shown in the figure), the plurality of second fixing holes are in communication with the second mounting hole 3311, the plurality of fourth connecting pieces 3313 correspond to the plurality of second fixing holes one by one, the fourth connecting piece 3313 is partially located in the corresponding second fixing hole, and the plurality of fourth connecting pieces 3313 abut against the fourth fixing rod 323. Specifically, the axial direction of the first fixing hole is perpendicular to the axial direction of the first mounting hole, and the axial direction of the second fixing hole is perpendicular to the axial direction of the second mounting hole 3311. It can be understood that by arranging the plurality of third connecting pieces 3312 and the plurality of first fixing holes, and the plurality of fourth connecting pieces 3313 and the plurality of second fixing holes, when the third fixing rod 313 is arranged in the first mounting hole, the plurality of third connecting pieces 3312 can abut against the side wall of the third fixing rod 313, and the first mounting hole can fix the third fixing rod 313; when the fourth fixing rod 323 is arranged in the second mounting hole 3311, the plurality of fourth connecting pieces 3313 can abut against the side wall of the fourth fixing rod 323, and the second mounting hole 3311 can fix the fourth fixing rod 323, thereby realizing the detachable connection of the third fixing assembly 33, the first fixing assembly 31 and the second fixing assembly 32.
[0053] Exemplarily, the third connecting piece 3312 and the fourth connecting piece 3313 are both bolts, the first fixing hole and the second fixing hole are both screw holes, the bolt and the screw hole are matched, the first mounting hole and the second mounting hole 3311 are both through holes, the diameter of the first mounting hole is greater than or equal to the diameter of the third fixing rod 313, and the diameter of the second mounting hole 3311 is greater than or equal to the diameter of the fourth fixing rod 323, so as to improve the installation convenience and the connection stability.
[0054] Further, as shown in Figure 1 the circuit breaker detection device further comprises a test vehicle 4, and the circuit breaker 100 is installed on the test vehicle 4. The test vehicle 4 is provided with a plurality of rollers 41 at the bottom. It can be understood that by arranging the test vehicle 4, the circuit breaker 100 can be easily moved to the test position for testing, which can greatly reduce the cost of manpower and material resources in the testing process, improve the testing efficiency, and at the same time ensure the safety of personnel.
[0055] It should be noted that the above only the preferred embodiments of the present application and the use of technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, those skilled in the art can make various obvious changes, re-adjustment and replacement without departing from the scope of the present application. Therefore, although the above embodiments of the present application has been described in more detail, but the present application is not limited to the above examples, without departing from the concept of the present application, but also can include more other equivalent embodiments, and the scope of the present application is determined by the appended claims.
Claims
1. A circuit breaker testing device, characterized in that, include: The testing facility (1) and the first fixed facility (2); The first fixing mechanism (2) is used to install the detection mechanism (1) below the solid-sealed pole (110) of the circuit breaker (100); The detection mechanism (1) is used to detect the data of the circuit breaker (100) and transmit the processed data to the device terminal.
2. The circuit breaker detection device according to claim 1, characterized in that, One end of the first fixing mechanism (2) passes through the base plate of the circuit breaker (100) and is connected to the solid-sealed pole (110), and the other end of the first fixing mechanism (2) is connected to the detection mechanism (1).
3. The circuit breaker testing device according to claim 1, characterized in that, The circuit breaker detection device further includes a second fixing mechanism (3), one end of which is connected to the base plate of the circuit breaker (100), and the other end is connected to the detection mechanism (1).
4. The circuit breaker testing device according to claim 3, characterized in that, The first fixing mechanism (2) and the second fixing mechanism (3) are respectively connected to different positions of the detection mechanism (1).
5. The circuit breaker testing device according to claim 3, characterized in that, The second fixing mechanism (3) includes a first fixing component (31), a second fixing component (32) and a third fixing component (33). One end of the first fixing component (31) is connected to the base plate of the circuit breaker (100), and the other end of the first fixing component (31) is connected to the third fixing component (33). One end of the second fixing component (32) is connected to the detection mechanism (1), and the other end of the second fixing component (32) is connected to the third fixing component (33).
6. The circuit breaker testing device according to claim 5, characterized in that, The first fixing component (31) includes a first connector (314) and a first fixing rod (311), a second fixing rod (312) and a third fixing rod (313) connected in sequence. The end of the second fixing rod (312) away from the third fixing rod (313) abuts against the lower end face of the base plate of the circuit breaker (100). The end of the first fixing rod (311) away from the second fixing rod (312) passes through the base plate of the circuit breaker (100). The first connector (314) is threadedly connected to the first fixing rod (311) and abuts against the upper end face of the base plate of the circuit breaker (100). The end of the third fixing rod (313) away from the second fixing rod (312) is connected to the third fixing component (33).
7. The circuit breaker testing device according to claim 6, characterized in that, The second fixing component (32) includes a plurality of second connectors (321), a fixing plate (322), and a fourth fixing rod (323). The fixing plate (322) is connected to the fourth fixing rod (323). The plurality of second connectors (321) are used to fix the fixing plate (322) to the side of the detection mechanism (1). The end of the fourth fixing rod (323) away from the fixing plate (322) is connected to the third fixing component (33).
8. The circuit breaker testing device according to claim 7, characterized in that, The third fixing component (33) includes a fixing block (331), on which a first mounting hole and a second mounting hole (3311) are provided. The end of the third fixing rod (313) away from the second fixing rod (312) passes through and is fixed in the first mounting hole. The end of the fourth fixing rod (323) away from the fixing plate (322) passes through and is fixed in the second mounting hole (3311).
9. The circuit breaker testing device according to claim 8, characterized in that, The third fixing component (33) also includes a plurality of third connectors (3312) and a plurality of fourth connectors (3313); The fixing block (331) is provided with a plurality of first fixing holes, all of which are connected to the first mounting holes. A plurality of third connectors (3312) correspond one-to-one with the plurality of first fixing holes. A portion of the third connector (3312) is located in the corresponding first fixing hole. A plurality of third connectors (3312) abut against the third fixing rod (313). The fixing block (331) is also provided with a plurality of second fixing holes, which are all connected to the second mounting hole (3311). The plurality of fourth connectors correspond one-to-one with the plurality of second fixing holes. The fourth connector (3313) is partially located in the corresponding second fixing hole. The plurality of fourth connectors (3313) abut against the fourth fixing rod (323).
10. The circuit breaker testing device according to any one of claims 1-9, characterized in that, The circuit breaker testing device also includes a test vehicle (4), on which the circuit breaker (100) is mounted, and multiple rollers (41) are mounted on the bottom of the test vehicle (4).