Device and method for monitoring mechanical state of circuit breaker

Abstract

The invention discloses a circuit breaker mechanical state monitoring device and method, and the device comprises a clamping device which comprises a clamping plate for clamping and fixing a circuit breaker body; the shaking equipment is used for shaking the circuit breaker body; and the monitor is electrically connected with a first guide block, a second guide block, a third guide block and a fourth guide block in the circuit breaker body, and is used for conducting electric conduction monitoring on the first guide block, the second guide block, the third guide block and the fourth guide block in the shaking process of the circuit breaker body. The invention aims to solve the technical problem that in the jitter monitoring process, which connecting end in equipment is mechanically disconnected cannot be accurately judged, so that the potential fault hidden danger cannot be found when a product is used.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breaker monitoring, and particularly to a mechanical state monitoring device and method for a circuit breaker. Background Art

[0002] A circuit breaker is an important switching device. It can connect and disconnect the current in the circuit under normal conditions to control electrical equipment; when a circuit fault such as a short circuit or overload occurs, it can quickly cut off the fault current to protect the equipment and personnel safety in the circuit.

[0003] Sensors for monitoring the mechanical state of a circuit breaker, such as displacement sensors, acceleration sensors, etc., when installed in a power transportation device, due to the large vibration during the operation of the transportation device; currently, there is no device that can perform a separate vibration detection on the internal mechanical connection components of the circuit breaker, and it is impossible to accurately determine where the mechanical connection is disconnected inside the device, making it impossible to discover potential fault hazards during the use of the product, thus affecting the safety and reliability of the device. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a mechanical state monitoring device and method for a circuit breaker, aiming to solve the technical problem that during the vibration monitoring process, it is impossible to accurately determine where the mechanical connection is disconnected inside the device, making it impossible to discover potential fault hazards during the use of the product.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions: According to a first aspect of the present invention, there is provided a mechanical state monitoring device for a circuit breaker, including: A clamping device, the clamping device includes a clamping plate for clamping and fixing the circuit breaker body; A vibration device for providing vibration to the circuit breaker body; A monitor, the monitor is electrically connected to a first guide block, a second guide block, a third guide block, and a fourth guide block in the circuit breaker body, and is used for conducting electricity monitoring on the first guide block, the second guide block, the third guide block, and the fourth guide block during the vibration of the circuit breaker body.

[0006] In a possible implementation manner of the first aspect, the clamping device includes two clamping mechanisms arranged opposite to each other, a back plate commonly connected to the two clamping mechanisms, a telescopic driving member connected to one end of each clamping mechanism, the clamping plate connected to the other end of each clamping mechanism, and a clamping mechanism connected to the side wall of each clamping plate. Grooves are provided on the opposite sides of the two clamping plates, and the circuit breaker body is placed in the grooves; One side of the backplane is connected with the monitor, the monitor is externally connected with the jitter device, a plurality of through holes for the wire to penetrate are formed on the side wall of the backplane, and a plurality of wire output connection ends are arranged on one side of the backplane. The monitor is electrically connected with the first guide block, the second guide block, the third guide block and the fourth guide block through wires.

[0007] In a possible implementation manner of the first aspect, two telescopic driving members are connected to one end of each clamping mechanism, the two telescopic driving members are symmetrically arranged on one side of the backplane, one end of the telescopic driving member is connected with a fixing plate, and the fixing plate is connected to the backplane.

[0008] In a possible implementation manner of the first aspect, the clamping mechanism includes a limiting strip plate. One side of the limiting strip plate is connected to the two telescopic driving members, a sliding groove is slidably arranged on the other side of the limiting strip plate, two sliding blocks are slidably connected in each of the two sliding grooves, one side of each of the two sliding blocks is hinged to an adjacent clamping plate through a hinge rod, and a first elastic member is connected between one side of each of the two sliding blocks and the inner side wall of the limiting strip plate; Two telescopic rods are slidably connected to two ends of the other side of the limiting strip plate, one end of the telescopic rod is connected with the limiting strip plate, and the other end of the telescopic rod is connected with an adjacent clamping plate.

[0009] In a possible implementation manner of the first aspect, the clamping mechanism includes a first mounting block and a second mounting block. The first mounting block and the second mounting block are both connected to the side wall of the adjacent clamping plate. One side of the first mounting block is movably connected with a telescopic positioning rod, and a telescopic insertion rod penetrates through the first mounting block and the second mounting block together. A positioning block matched with the telescopic positioning rod is arranged at one end of the telescopic insertion rod; A connecting piece is arranged on the outer side wall of the telescopic insertion rod, and a plurality of second elastic members are arranged between one side of the connecting piece and the second mounting block.

[0010] In a possible implementation manner of the first aspect, the first elastic member and the second elastic member are springs.

[0011] In a possible implementation manner of the first aspect, the telescopic driving member is an electric telescopic rod.

[0012] In a possible implementation of the first aspect, the circuit breaker body includes a toggle rod, a guide rod, an arc elimination sheet, a hot bending strip, and a switch paddle rotatably connected to the back plate side. The toggle rod is rotatably connected to the inner side wall of the circuit breaker body, and a first guide block abuts against a side wall of one end of the toggle rod. The guide rod is connected to the inner side wall of the back plate, and a second guide block abuts against one side of the guide rod. The arc elimination sheet is connected to the inner side of the back plate, and a third guide block abuts against one side of the arc elimination sheet. The hot bending strip is located on the inner bottom wall of the back plate, and a fourth guide block abuts against one end of the hot bending strip.

[0013] In a possible implementation of the first aspect, one end of each of the first guide block, the second guide block, the third guide block, and the fourth guide block is connected with a rotating shaft and a driving motor. A conductive block is rotatably connected to each of the rotating shafts, and one side of the conductive block is electrically connected to a monitor through a wire.

[0014] According to a second aspect of the present invention, there is provided a method for monitoring the mechanical state of a circuit breaker. By using the above-mentioned circuit breaker mechanical state monitoring device, the following specific steps are included: S1. Place the circuit breaker body in a clamping device, and clamp and fix the circuit breaker body through clamping plates. S2. Start the jitter device to jitter the circuit breaker body. S3. During the jittering of the circuit breaker body, conduct position connection conduction monitoring on the first guide block, the second guide block, the third guide block, and the fourth guide block through a monitor. S4. Monitor the connection state of the first guide block, the second guide block, the third guide block, and the fourth guide block inside the circuit breaker body by adjusting the jitter amplitude. S5. Collect data through a monitor.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: A circuit breaker mechanical state monitoring device provided by the present invention, when in use, first, place the circuit breaker body in the clamping device and clamp and fix the circuit breaker body through the clamping plate; then, start the jitter device to jitter the circuit breaker body; then, during the jittering process of the circuit breaker body, monitor the position connection and conductivity of the first guide block, the second guide block, the third guide block and the fourth guide block through the monitor; then, monitor the connection state of the first guide block, the second guide block, the third guide block and the fourth guide block inside the circuit breaker body by adjusting the jitter amplitude; finally, collect data through the monitor. It can be seen that the present invention has the technical effect of being able to monitor the individual connection states of the internal toggle rod, guide rod, arc elimination sheet and hot bending strip during the jittering process, and at the same time, being able to monitor real-time data during the jittering process, solving the technical problem that in the jitter monitoring process, it is impossible to accurately judge where the mechanical connection is disconnected at the connection end inside the device, so that potential faults and hidden dangers of the product cannot be found when in use.

[0016] To make the above objects, features and advantages of the present invention more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, is described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions in the specific embodiments of the present invention, the following will briefly introduce the drawings required for use in the description of the specific embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is the overall flowchart of a monitoring method for the mechanical state of a circuit breaker proposed by the present invention.

[0019] Figure 2 It is the structural schematic diagram of a monitoring method for the mechanical state of a circuit breaker proposed by the present invention.

[0020] Figure 3 It is the structural schematic diagram of the connection of the monitor wires in a monitoring method for the mechanical state of a circuit breaker proposed by the present invention.

[0021] Figure 4 It is the planar structural schematic diagram in a monitoring method for the mechanical state of a circuit breaker proposed by the present invention.

[0022] Figure 5 For the present invention Figure 4 The enlarged structural schematic diagram at position A.

[0023] Figure 6 For the present invention Figure 4 The enlarged structural schematic diagram at position B.

[0024] In the figure: 01 is the main body of the circuit breaker; 011 is the toggle rod; 0111 is the first guide block; 012 is the guide rod; 0121 is the second guide block; 013 is the arc elimination sheet; 0131 is the third guide block; 014 is the hot bending strip; 0141 is the fourth guide block; 015 is the switch paddle; 1 is the back plate; 2 is the clamping mechanism; 201 is the limit strip; 202 is the sliding block; 203 is the telescopic rod; 21 is the telescopic driving member; 22 is the clamping plate; 23 is the engaging mechanism; 231 is the first mounting block; 232 is the second mounting block; 233 is the telescopic insertion rod; 234 is the telescopic positioning rod; 235 is the connecting piece; 3 is the monitor. Specific embodiments

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Combined with Figures 2 to 6 As shown, an embodiment of the present invention provides a circuit breaker mechanical state monitoring device, mainly including: a clamping device, a jitter device, and a monitor 3. The clamping device includes a clamping plate 22 for clamping and fixing the main body 01 of the circuit breaker; the jitter device is used to provide jitter to the main body 01 of the circuit breaker; the monitor 3 is electrically connected to the first guide block 0111, the second guide block 0121, the third guide block 0131, and the fourth guide block 0141 in the main body 01 of the circuit breaker, and is used to conduct conductive monitoring of the first guide block 0111, the second guide block 0121, the third guide block 0131, and the fourth guide block 0141 during the jitter process of the main body 01 of the circuit breaker.

[0027] This circuit breaker mechanical state monitoring device is mainly applied to the scenario of circuit breaker monitoring. Combined with Figure 1 As shown, when using this circuit breaker mechanical state monitoring device to monitor the mechanical state of the circuit breaker, the following specific steps are included: S1: Installation: Place the main body 01 of the circuit breaker in the clamping device, and clamp and fix the main body 01 of the circuit breaker through the clamping plate 22; S2: Jitter: Start the jitter device to jitter the main body 01 of the circuit breaker; S3: Monitoring: Conduct position connection conductive monitoring of the first guide block 0111, the second guide block 0121, the third guide block 0131, and the fourth guide block 0141 through the monitor 3 during the jitter process of the main body 01 of the circuit breaker; S4: Observation: By adjusting the jitter amplitude, monitor the connection status of the first guide block 0111, the second guide block 0121, the third guide block 0131, and the fourth guide block 0141 inside the circuit breaker body 01; S5: Data output: Collect data through the monitor 3; During the monitoring process, start the jitter device connected to the monitor 3, and drive the entire device to jitter through the jitter of the jitter device. The jitter device belongs to an external device, and different power jitter devices can be adapted according to the jitter intensity for jitter detection; The first guide block 0111, the second guide block 0121, the third guide block 0131, and the fourth guide block 0141 are strip-shaped, and one end of each is connected to the output end of the drive motor. When the drive motor drives the rotation, it rotates around the central axis of the output end. The other ends of the strip-shaped first guide block 0111, the second guide block 0121, the third guide block 0131, and the fourth guide block 0141 rotate in a circular shape. When the test is completed, if the reset toggle lever 011, the guide rod 012, the arc elimination piece 013, and the hot bending strip 014 fail to fit with the corresponding first guide block 0111, the second guide block 0121, the third guide block 0131, and the fourth guide block 0141, and during the power-on test, the current fails to be conducted through the first guide block 0111, the second guide block 0121, the third guide block 0131, and the fourth guide block 0141 to the other electrode connection of the output end of the drive motor, it can indicate that a mechanical state reset failure occurs at this position during the jitter test. Moreover, the first guide block 0111, the second guide block 0121, the third guide block 0131, and the fourth guide block 0141 are all individually connected to the other electrode of the detection end through wires, and the fault problem at the specified position can be quickly judged after power-on.

[0028] In a preferred solution, the clamping device includes two clamping mechanisms 2 arranged opposite to each other, a back plate 1 commonly connected to the two clamping mechanisms 2, a telescopic driving member 21 connected to one end of the clamping mechanism 2, a clamping plate 22 connected to the other end of the clamping mechanism 2, a clamping mechanism 23 connected to the side wall of the clamping plate 22, and a mounting plate connected to one side of the back plate 1; by pushing the clamping plate 22 through the telescopic driving member 21 to clamp the circuit breaker body 01, the stability of the clamping of the back plate 1 during jitter can be ensured.

[0029] On one side of the backplane 1, a monitor 3 is connected. The monitor 3 is externally connected to a jitter device. A plurality of through holes for wires to penetrate are provided on the side wall of the backplane 1. On one side of the backplane 1, there are a plurality of wire output connection terminals. Two telescopic driving members 21 are symmetrically arranged on one side of the backplane 1. One end of the telescopic driving member 21 is connected to a vertical plate, and the vertical plate is connected to the backplane 1. On one side of each of the two clamping plates 22, a groove is provided, and a circuit breaker body 01 is arranged in the groove; the monitor 3 is electrically connected to the toggle lever 011, the guide rod 012, the arc elimination piece 013, and the thermal bending strip 014 in the circuit breaker body 01 through a plurality of wires respectively, so that when the device jitters, the stability of its connection can be monitored in real time.

[0030] Exemplarily, the telescopic driving member 21 adopts an electric telescopic rod.

[0031] In a preferred solution, the clamping mechanism 2 includes a limit strip plate 201. One side of the limit strip plate 201 is connected to the two telescopic driving members 21. A sliding groove is slidably arranged in the limit strip plate 201. Two sliding blocks 202 are slidably connected in the two sliding grooves respectively. One side of each of the two sliding blocks 202 is hinged to the adjacent clamping plate 22 through a hinge rod. A first elastic member is connected between one side of each of the two sliding blocks 202 and the inner side wall of the limit strip plate 201; two telescopic rods 203 are slidably connected to one side of the limit strip plate 201. One end of the telescopic rod 203 is connected to the limit strip plate 201, and the other end of the telescopic rod 203 is connected to the adjacent clamping plate 22; when the jitter device drives the backplane 1 to jitter, it can cooperate with the elastic force of the first elastic member and the second elastic member to jitter, ensure the stable clamping state of the circuit breaker body 01, and improve the jitter amplitude and swing frequency to ensure the detection quality.

[0032] Exemplarily, the first elastic member and the second elastic member adopt springs.

[0033] In a preferred solution, the engaging mechanism 23 includes a first mounting block 231 and a second mounting block 232. The first mounting block 231 and the second mounting block 232 are both connected to the side wall of the adjacent clamping plate 22. One side of the first mounting block 231 is movably connected to a telescopic positioning rod 234. A telescopic insertion rod 233 penetrates through the first mounting block 231 and the second mounting block 232 together. A positioning block for cooperating with the telescopic positioning rod 234 is arranged at one end of the telescopic insertion rod 233; a connecting piece 235 is arranged on the outer side wall of the telescopic insertion rod 233. A plurality of second elastic members are connected between one side of the connecting piece 235 and the second mounting block 232; when clamping, when the two clamping plates 22 contact each other, when the telescopic insertion rod 233 is inserted into the first mounting block 231, the telescopic positioning rod 234 can be engaged with the telescopic insertion rod 233, improving the installation convenience, and at the same time, the stable clamping of the circuit breaker body 01 can also be ensured during shaking.

[0034] In this embodiment, the circuit breaker body 01 includes a toggle rod 011, a guide rod 012, an arc elimination sheet 013, a hot bending strip 014 and a switch toggle sheet 015 rotatably connected to the side of the back plate 1. The toggle rod 011 is rotatably connected to the inner side wall of the circuit breaker body 01, and a first guide block 0111 is abutted on the side wall of one end of the toggle rod 011; the guide rod 012 is connected to the inner side wall of the back plate 1, and one side of the guide rod 012 is abutted on the second guide block 0121; the arc elimination sheet 013 is connected to the inner side wall of the back plate 1, and a second guide block 0121 is abutted on the side wall of the guide rod 012 ... 13 is connected to the inner side of the back plate 1, and one side of the arc elimination sheet 013 is in contact with the third guide block 0131; the heat bending strip 014 is located on the inner bottom wall of the back plate 1, and one end of the heat bending strip 014 is in contact with the fourth guide block 0141; through one-to-one connection monitoring, it can be ensured that when the equipment is shaking, the connection status of the corresponding monitoring point can understand the connection status in real time, and when a disconnection occurs, the position of the disconnection point can be understood in time, so that the problem of the disconnected connector can be clearly understood.

[0035] In one implementable embodiment, a plurality of wire input connection terminals are provided on the monitor 3, and the wire input connection terminals are connected to the wire output connection terminals through wires; one end of the first guide block 0111, the second guide block 0121, the third guide block 0131 and the fourth guide block 0141 are connected to a rotating shaft and a driving motor, and a conductive block is rotatably connected to the rotating shaft, and one side of the conductive block is electrically connected to the monitor 3 through a wire; the conductive block can promptly respond to the connection status under the current state.

[0036] The monitor 3 is provided with a plurality of wire input connection terminals, which are connected to the wire output connection terminals through wires; one end of the first guide block 0111, the second guide block 0121, the third guide block 0131 and the fourth guide block 0141 are all connected to a rotating shaft and a driving motor, and a conductive block is rotatably connected to the rotating shaft, and one side of the conductive block is electrically connected to the monitor 3 through a wire. The monitoring method of the mechanical state of the circuit breaker provided by the present invention has the technical effect of being able to monitor the individual connection states of the internal toggle rod, the guide rod, the arc elimination sheet and the heat bending strip during the shaking process, and being able to monitor real-time data during the shaking process.

[0037] Working principle: First, the telescopic driving member 21 is started, and the two clamping plates 22 are pushed to fit together by the telescopic driving member 21 to achieve the clamping of the circuit breaker body 01. During the process, the telescopic plug rod 233 is inserted into the first mounting block 231, and is limited by the telescopic positioning rod 234. After the clamping is completed, the back plate 1 is driven to shake by starting the shaking device, and the elastic force of the first elastic member and the second elastic member is cooperated to improve the shaking efficiency; At this time, start the monitor 3, which is connected to the first guide block 0111, the second guide block 0121, the third guide block 0131 and the fourth guide block 0141 through the wires. When the driving motor is driven, it drives the first guide block 0111, the second guide block 0121, the third guide block 0131 and the fourth guide block 0141 to rotate. When rotating, the corresponding guide blocks collide with the toggle rod 011, the guide rod 012, the arc elimination sheet 013 and the hot bending strip 014, and the path is not conductive. It can be determined that the connection is in the process of shaking, and the connection reset part is positionally offset, resulting in the failure of conductive connection, so that the problem point can be quickly discovered.

[0038] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In the present invention, terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0043] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes, or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A circuit breaker mechanical state monitoring device, characterized in that, Comprising: A clamping device, the clamping device including a clamping plate (22) for clamping and fixing a circuit breaker body (01); A jitter device for providing jitter to the circuit breaker body (01); A monitor (3), the monitor (3) being electrically connected to a first guide block (0111), a second guide block (0121), a third guide block (0131), and a fourth guide block (0141) in the circuit breaker body (01), and being configured to conduct electrical monitoring of the first guide block (0111), the second guide block (0121), the third guide block (0131), and the fourth guide block (0141) during the jitter process of the circuit breaker body (01).

2. The mechanical state monitoring device of a circuit breaker according to claim 1, characterized in that The clamping device includes two clamping mechanisms (2) disposed opposite to each other, a back plate (1) commonly connected to the two clamping mechanisms (2), a telescopic driving member (21) connected to one end of each clamping mechanism (2), the clamping plate (22) connected to the other end of each clamping mechanism (2), and a clamping mechanism (23) connected to the side wall of each clamping plate (22). Grooves are formed on one side of the two clamping plates (22) facing each other, and the circuit breaker body (01) is placed in the grooves. The monitor (3) is connected to one side of the back plate (1), the monitor (3) is externally connected to the jitter device, through holes for the wires to penetrate are formed on the side wall of the back plate (1), and a plurality of wire output connection ends are provided on one side of the back plate (1). The monitor (3) is electrically connected to the first guide block (0111), the second guide block (0121), the third guide block (0131), and the fourth guide block (0141) through wires.

3. The mechanical state monitoring device for a circuit breaker according to claim 2, characterized in that, Two telescopic driving members (21) are connected to one end of each clamping mechanism (2), the two telescopic driving members (21) are symmetrically disposed on one side of the back plate (1), one end of the telescopic driving member (21) is connected to a fixing plate, and the fixing plate is connected to the back plate (1).

4. The mechanical state monitoring device of a circuit breaker according to claim 3, characterized in that, The clamping mechanism (2) includes a limiting strip plate (201), one side of the limiting strip plate (201) is connected to the two telescopic driving members (21), sliding grooves are formed on the other side of the limiting strip plate (201), two sliding blocks (202) are slidably connected in each of the two sliding grooves, one side of each of the two sliding blocks (202) is hinged to the adjacent clamping plate (22) through a hinge rod, and a first elastic member is connected to one side of each of the two sliding blocks (202) and the inner side wall of the limiting strip plate (201). Two telescopic rods (203) are slidably connected to both ends of the other side of the limiting strip plate (201), one end of the telescopic rod (203) is connected to the limiting strip plate (201), and the other end of the telescopic rod (203) is connected to the adjacent clamping plate (22).

5. The mechanical state monitoring device for a circuit breaker according to claim 4, characterized in that, The engaging mechanism (23) comprises a first mounting block (231) and a second mounting block (232), the first mounting block (231) and the second mounting block (232) are both connected to the side walls of the adjacent clamping plate (22), one side of the first mounting block (231) is movably connected to a telescopic positioning rod (234), the first mounting block (231) and the second mounting block (232) are both penetrated by a telescopic insertion rod (233), and one end of the telescopic insertion rod (233) is provided with a positioning block that cooperates with the telescopic positioning rod (234); A connecting piece (235) is provided on the outer side wall of the telescopic plug rod (233), and a plurality of second elastic members are provided between one side of the connecting piece (235) and the second mounting block (232).

6. The mechanical state monitoring device for a circuit breaker according to claim 5, characterized in that, The first elastic member and the second elastic member are springs.

7. The mechanical state monitoring device for a circuit breaker according to claim 2, wherein, The telescopic driving member (21) is an electric telescopic rod.

8. The mechanical state monitoring device for a circuit breaker according to claim 2, characterized in that, The circuit breaker body (01) comprises a toggle lever (011), a guide rod (012), an arc extinguishing sheet (013), a heat bending strip (014), and a switch toggle piece (015) rotatably connected to the inner side wall of the circuit breaker body (01), and one end of the toggle lever (011) abuts against the first guide block (0111); the guide rod (012) is connected to the inner side wall of the back plate (1), and one side of the guide rod (012) abuts against the second guide block (0121); the arc extinguishing sheet (013) is connected to the inner side of the back plate (1), and one side of the arc extinguishing sheet (013) abuts against the third guide block (0131); the heat bending strip (014) is located on the inner bottom wall of the back plate (1), and one end of the heat bending strip (014) abuts against the fourth guide block (0141).

9. The mechanical state monitoring device for a circuit breaker according to claim 8, characterized in that, One end of the first guide block (0111), the second guide block (0121), the third guide block (0131) and the fourth guide block (0141) are connected to a rotating shaft and a driving motor, and a conductive block is rotatably connected to the rotating shaft, and one side of the conductive block is electrically connected to the monitor (3) through a wire.

10. A method for monitoring the mechanical state of a circuit breaker, characterized in that, A circuit breaker mechanical state monitoring device according to any one of claims 1 to 9 comprises the following specific steps: S1. placing the circuit breaker body (01) in a clamping device, and clamping and fixing the circuit breaker body (01) by means of a clamping plate (22); S2, starting the shaking device to shake the circuit breaker body (01); S3, during the shaking process of the circuit breaker body (01), the position connection and conductivity monitoring of the first guide block (0111), the second guide block (0121), the third guide block (0131) and the fourth guide block (0141) is performed by means of a monitor (3); S4, monitoring the connection status of the first guide block (0111), the second guide block (0121), the third guide block (0131) and the fourth guide block (0141) inside the circuit breaker body (01) by adjusting the shaking amplitude; S5. Collect data through the monitor (3).

Images