On-line monitoring device for mechanical characteristics of circuit breaker

Abstract

The utility model relates to the technical field of power construction, and discloses a breaker mechanical characteristic on-line monitoring device which comprises a hollow protective shell, the front side of the inner wall of the hollow protective shell is rotatably connected with a first rotating shaft, the outer wall of the first rotating shaft is fixedly connected with a rotating block, the top of the hollow protective shell is provided with a plurality of first wire grooves, and the first wire grooves are fixedly connected with the rotating block. The rear side of the first wire groove is fixedly connected with a first metal electrode, the bottom of the first metal electrode is fixedly connected with a movable brake block, the outer wall of the first metal electrode is provided with a sliding sleeve, and the inner wall of the sliding sleeve is slidably connected with the outer wall of the first metal electrode. According to the utility model, the rotating shaft I is rotated to drive the rotating block to rotate together so as to extrude the metal electrode I to bend, so that the movable brake block and the fixed brake block are contacted for closing, and the sliding sleeve drives the sliding rod to move, thereby achieving the purpose of detecting the angle of the switch, improving the safety and improving the practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power construction, in particular to an online monitoring device for mechanical characteristics of a circuit breaker. Background Art

[0002] A circuit breaker is a switching device that automatically cuts off current when a circuit fault occurs. It operates quickly in the event of a circuit overload or short circuit, protecting electrical equipment and wiring from damage. When the circuit is operating normally, the circuit breaker remains closed, allowing current to flow. However, when an overload or short circuit occurs, the protective elements within the circuit breaker detect the anomaly and quickly open, shutting off the current and preventing the fault from escalating. There are many different types of circuit breakers, depending on their intended use.

[0003] According to the structural form, circuit breakers are divided into air circuit breakers, oil circuit breakers and vacuum circuit breakers. Air circuit breakers use compressed air as the arc extinguishing medium, while oil circuit breakers use oil as the arc extinguishing medium, and vacuum circuit breakers use vacuum as the arc extinguishing medium. Therefore, circuit breakers are key equipment to ensure the safe and stable operation of power systems. Their performance and reliability are crucial to the safety of power systems.

[0004] Existing circuit breakers can use built-in sensors to detect their internal mechanical properties, but they cannot detect whether the closing angle has changed due to aging, resulting in reduced safety and low practicality. Utility Model Content

[0005] In order to make up for the above shortcomings, the present invention provides an online monitoring device for mechanical characteristics of a circuit breaker, aiming to improve the problem in the prior art that the existing circuit breaker cannot detect whether the angle of the closing gate changes due to aging, resulting in reduced safety.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: an online monitoring device for mechanical characteristics of a circuit breaker, comprising a hollow protective shell, wherein the front side of the inner wall of the hollow protective shell is rotatably connected to a rotating shaft 1, the outer wall of the rotating shaft 1 is fixedly connected to a rotating block, the top of the hollow protective shell is provided with a plurality of wire grooves 1, the rear side of the wire groove 1 is fixedly connected to a metal electrode 1, the bottom of the metal electrode 1 is fixedly connected to a movable brake block, the outer wall of the metal electrode 1 is provided with a sliding sleeve, the inner wall of the sliding sleeve is slidably connected to the outer wall of the metal electrode 1, the outer wall of the sliding sleeve is fixedly connected to a sliding rod, the middle part of the outer wall of the sliding rod is rotatably connected to the rotating shaft 2, a guide groove is provided on the right side of the hollow protective shell, the right end of the sliding rod is fixedly connected to the sliding block, the bottom of the sliding block is fixedly connected to a pointer, a plurality of scales are fixedly connected to the inner wall bottom of the rotating block near the edge, and a temperature measuring structure is fixedly connected to the left side of the hollow protective shell, and the temperature measuring structure is used to detect the internal temperature.

[0007] As a further description of the above technical solution:

[0008] The temperature measurement structure includes a second liquid storage shell, the inner wall of which is provided with a second liquid tank, the front side of which is fixedly connected to a first liquid storage shell, the inner wall of which is provided with a first liquid tank, the inner wall of which and the inner wall of the first liquid tank and the metal sheet are both fixedly connected with a heat conducting sheet, the outer wall of which is fixedly connected with an insulating sleeve, the upper and lower sides of the inner walls of the first and second liquid tanks are both fixedly connected with metal sheets, the outer wall of the metal sheet is fixedly connected with a second insulating sleeve, and an alarm is fixedly connected to the left side of the hollow protective shell near the edge.

[0009] As a further description of the above technical solution:

[0010] The top of the front heat conducting plate is fixedly connected to the front side of the metal electrode 1, and the plurality of insulating sleeves 1 are fixedly connected at the same horizontal height.

[0011] As a further description of the above technical solution:

[0012] A display screen is fixedly connected to the middle portion of the front side of the hollow protective shell, and a nameplate is fixedly connected to the front side of the hollow protective shell near the edge.

[0013] As a further description of the above technical solution:

[0014] A plurality of wire grooves 2 are provided at the bottom of the front side of the hollow protective shell, and a plurality of fixing screws are threadedly connected near the edge of the front side of the wire grooves 2.

[0015] As a further description of the above technical solution:

[0016] A second metal electrode is fixedly connected to the rear side of the inner wall of the second wire slot, and an arc extinguishing chamber is fixedly connected to the rear side of the second metal electrode.

[0017] As a further description of the above technical solution:

[0018] The top of the arc extinguishing chamber is fixedly connected to the bottom of the fixed brake block, and the top of the fixed brake block is in contact with the outer wall of the movable brake block.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the sliding rod is slidably connected to the inner wall of the rotating block, and the outer wall of the rotating shaft 1 is fixedly connected with a pull handle.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the rotating block is rotated by rotating the rotating shaft 1, thereby squeezing the metal electrode 1 to bend and bringing the movable gate block into contact with the fixed gate block to close the gate. At the same time, the sliding sleeve drives the sliding rod to move, and the rotation of the rotating shaft 2 is coordinated to ensure that the sliding rod slides in the guide groove to drive the sliding block to move. The angle of closing and closing the gate is read by the pointer indicating the value on the scale, thereby achieving the purpose of detecting the angle of opening and closing the gate, improving safety and enhancing practicality.

[0023] 2. In the present invention, the temperature of the fixed brake block and the metal electrode is introduced into the liquid tank 1 through the heat conducting sheet, and the heat conducting sheet is used to prevent the entry of current. When the temperature rises, the liquid in the liquid tank 1 will rise with the temperature until it contacts the insulating sleeve 2, and the circuit will be turned on, thereby triggering the alarm to start, achieving the purpose of detecting and preventing the internal mechanical temperature from being too high, improving practicality and enhancing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front perspective view of an online monitoring device for mechanical characteristics of a circuit breaker proposed in the present invention;

[0025] Figure 2 This is a side view of an online monitoring device for mechanical characteristics of a circuit breaker proposed in the utility model;

[0026] Figure 3 This is a partial structural breakdown diagram of a sliding block of an online monitoring device for mechanical characteristics of a circuit breaker proposed in the present invention;

[0027] Figure 4 This is a partial structural diagram of an online monitoring device for mechanical characteristics of a circuit breaker proposed in the present invention;

[0028] Figure 5 This is a partial structural breakdown diagram of the liquid tank of the online monitoring device for mechanical characteristics of a circuit breaker proposed in the present invention.

[0029] Legend:

[0030] 1. Hollow protective shell; 2. Temperature measurement structure; 201. Liquid storage shell 1; 202. Liquid tank 1; 203. Alarm; 204. Insulation sleeve 1; 205. Thermal conductive sheet; 206. Liquid tank 2; 207. Metal sheet; 208. Insulation sleeve 2; 209. Liquid storage shell 2; 3. Rotating shaft 1; 4. Rotating block; 5. Sliding block; 6. Pointer; 7. Scale; 8. Metal electrode 1; 9. Sliding sleeve; 10. Rotating shaft 2; 11. Sliding rod; 12. Moving brake block; 13. Fixed brake block; 14. Metal electrode 2; 15. Arc extinguishing chamber; 16. Fixing screw; 17. Wire duct 1; 18. Nameplate; 19. Display screen; 20. Wire duct 2; 21. Pull handle; 22. Guide groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Please see the attached Figure 1 - Attachment Figure 3 The present invention provides an embodiment of an online monitoring device for mechanical characteristics of a circuit breaker, comprising a hollow protective shell 1, wherein a rotating shaft 3 is rotatably connected to the front side of the inner wall of the hollow protective shell 1, and the hollow protective shell 1 is used to protect the internal structure. A rotating block 4 is fixedly connected to the outer wall of the rotating shaft 3. The top of the hollow protective shell 1 is provided with a plurality of wire grooves 17, and a metal electrode 8 is fixedly connected to the rear side of the wire groove 17. A movable brake block 12 is fixedly connected to the bottom of the metal electrode 8, and the metal electrode 8 is used to connect to the wire.

[0033] Specifically, the metal electrode 8 is used to connect to the wire to conduct electricity and connect the circuit. The hollow protective shell 1 can protect the internal structure from external damage while ensuring that the current does not affect the external environment. The movable gate block 12 can be opened and closed by bending the metal electrode 8 to move.

[0034] Please see the attached Figure 3 - Attachment Figure 5 The outer wall of the metal electrode 18 is provided with a sliding sleeve 9, the inner wall of the sliding sleeve 9 is slidably connected to the outer wall of the metal electrode 18, the outer wall of the sliding sleeve 9 is fixedly connected to a sliding rod 11, the sliding sleeve 9 is made of plastic material to prevent the flow of current, the middle part of the outer wall of the sliding rod 11 is rotatably connected to the rotating shaft 2 10, the right side of the hollow protective shell 1 is provided with a guide groove 22, the right end of the sliding rod 11 is fixedly connected to the sliding block 5, the guide groove 22 is used to guide the sliding of the sliding rod 11, the bottom of the sliding block 5 is fixedly connected to a pointer 6, the bottom of the inner wall of the rotating block 4 is fixedly connected near the edge with multiple scales 7, the left side of the hollow protective shell 1 is fixedly connected to a temperature measuring structure 2, the pointer 6 can point to different scales 7 by moving the sliding block 5, the temperature measuring structure 2 is used to detect the internal temperature. A display screen 19 is fixedly connected to the middle part of the front side of the hollow protective shell 1, and a nameplate 18 is fixedly connected to the front side of the hollow protective shell 1 near the edge. The display screen 19 can display the current flowing through the circuit breaker;

[0035] Specifically, the nameplate 18 is engraved with relevant information of the device, which can facilitate users to understand and use the device. The guide groove 22 ensures the direction of the sliding direction of the sliding rod 11 to prevent it from deviating from the established sliding trajectory. The rotating shaft 10 allows the sliding rod 11 to slide in the guide groove 22 while avoiding jamming caused by the uneven trajectory of the sliding sleeve 9. The scale 7 is used to display the angle moved by the sliding sleeve 9, and then determine the distance and angle moved when closing and closing the switch, thereby judging whether the mechanical part is aging.

[0036] Please see the attached Figure 4 and attached Figure 5 The temperature measurement structure 2 includes a second liquid storage shell 209, the inner wall of the second liquid storage shell 209 is provided with a second liquid tank 206, the front side of the second liquid storage shell 209 is fixedly connected to the first liquid storage shell 201, the second liquid storage shell 209 and the first liquid storage shell 201 are both used to store special detection liquids, the inner wall of the liquid storage shell 201 is provided with a liquid tank 202, the inner wall of the liquid tank 202 and the metal sheet 207 are fixedly connected with a heat conducting sheet 205, the outer wall of the heat conducting sheet 205 is fixedly connected with an insulating sleeve 204, the upper and lower sides of the inner walls of the liquid tank 202 and the second liquid tank 206 are A metal sheet 207 is fixedly connected. The heat conducting sheet 205 is used to guide the heat in the device into the second liquid storage shell 209 and the first liquid storage shell 201. The outer wall of the metal sheet 207 is fixedly connected to the second insulating sleeve 208. The left side of the hollow protective shell 1 is fixedly connected to the edge. The second insulating sleeve 208 is used to prevent current leakage. The top of the front heat conducting sheet 205 is fixedly connected to the front side of the metal electrode 1 8. Multiple insulating sleeves 1 204 are fixedly connected at the same horizontal height. The alarm 203 is used to sound an alarm after conduction.

[0037] Specifically, the alarm 203 enables the metal sheet 207 to be turned on when the temperature is abnormal, thereby issuing an alarm in time to remind the operator to take necessary measures. The insulating sleeve 204 can prevent the heat-conducting sheet 205 from discharging current while discharging heat in the device, causing a short circuit. The liquid tank 1 202 and the liquid tank 2 206 allow the liquid in the liquid storage shell 2 209 and the liquid storage shell 1 201 to rise along them when heated.

[0038] Please see the attached Figure 1 and attached Figure 2, the outer wall of the sliding rod 11 is slidably connected to the inner wall of the rotating block 4, and the outer wall of the rotating shaft 3 is fixedly connected with a pull handle 21. A plurality of wire grooves 20 are provided at the bottom of the front side of the hollow protective shell 1. The pull handle 21 is used to help the user rotate the rotating shaft 3. The front side of the wire groove 20 is threaded with a plurality of fixing screws 16 near the edge. The top of the arc extinguishing chamber 15 is fixedly connected to the bottom of the fixed gate block 13. The fixing screws 16 are used to limit the wires in the wire groove 20. The top of the fixed gate block 13 fits with the outer wall of the movable gate block 12. The rear side of the inner wall of the wire groove 20 is fixedly connected with a metal electrode 2 14. The rear side of the metal electrode 2 14 is fixedly connected with the arc extinguishing chamber 15. The arc extinguishing chamber 15 can extinguish the arc in the high voltage current;

[0039] Specifically, the wire duct 20 not only provides a safe passage for the wires, but also ensures the neatness of the wires and the overall beauty of the equipment through its precise layout. The arc extinguishing chamber 15 ensures that the arc can be extinguished quickly and effectively when the high voltage current passes through, ensuring the safe operation of the equipment. The fixed gate block 13 can move the gate block 12 to fit together, thereby turning on the device and allowing the circuit to flow.

[0040] Working principle: When the rotating shaft 3 is rotated upward, the rotating block 4 will rotate together, thereby squeezing the sliding sleeve 9 to bend it, and then the movable brake block 12 is pressed against the fixed brake block 13, turning on the power supply. At the same time, the sliding sleeve 9 is driven to move, and the sliding rod 11 is driven to slide along the guide groove 22 through the rotation of the sliding rod 11, thereby driving the movement of the sliding block 5 and the pointer 6, so that the angle of rotation and closing is indicated at the scale 7;

[0041] The temperature at both ends is transferred to the liquid tank 1 202 and the metal sheet 207 respectively through the heat conducting sheet 205, and the current is prevented from entering therein through the insulating sleeve 1 204. When the temperature rises, the insulating sleeve 1 204 will heat the liquid in the liquid tank 1 202 and the metal sheet 207. When the liquid on both sides rises to a certain height, the insulating sleeve 208 will be released to make the circuit conductive and then the alarm 203 will start to sound.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A circuit breaker mechanical characteristic online monitoring device, comprising a hollow protective shell (1), characterized in that: The front side of the inner wall of the hollow protective shell (1) is rotatably connected to a rotating shaft (3), the outer wall of the rotating shaft (3) is fixedly connected to a rotating block (4), the top of the hollow protective shell (1) is provided with a plurality of wire grooves (17), the rear side of the wire grooves (17) is fixedly connected to a metal electrode (8), the bottom of the metal electrode (8) is fixedly connected to a moving brake block (12), the outer wall of the metal electrode (8) is provided with a sliding sleeve (9), the inner wall of the sliding sleeve (9) is slidably connected to the outer wall of the metal electrode (8), and the sliding sleeve (9) is fixedly connected to the outer wall of the metal electrode (8). ) is fixedly connected to the outer wall of the sliding rod (11), and the middle part of the outer wall of the sliding rod (11) is rotatably connected to the rotating shaft 2 (10). A guide groove (22) is provided on the right side of the hollow protective shell (1). The right end of the sliding rod (11) is fixedly connected to the sliding block (5), and the bottom of the sliding block (5) is fixedly connected to a pointer (6). The bottom of the inner wall of the rotating block (4) is fixedly connected to a plurality of scales (7) near the edge. The left side of the hollow protective shell (1) is fixedly connected to a temperature measuring structure (2), and the temperature measuring structure (2) is used to detect the internal temperature.

2. The circuit breaker mechanical characteristics online monitoring device according to claim 1, characterized in that: The temperature measurement structure (2) comprises a second liquid storage shell (209), the inner wall of the second liquid storage shell (209) is provided with a second liquid tank (206), the front side of the second liquid storage shell (209) is fixedly connected to the first liquid storage shell (201), the inner wall of the first liquid storage shell (201) is provided with a first liquid tank (202), the inner walls of the first liquid tank (202) and the metal sheet (207) are both fixedly connected with a heat conducting plate (205), the outer wall of the heat conducting plate (205) is fixedly connected with an insulating sleeve (204), the upper and lower sides of the inner walls of the first liquid tank (202) and the second liquid tank (206) are both fixedly connected with a metal sheet (207), the outer wall of the metal sheet (207) is fixedly connected with an insulating sleeve (208), and the left side of the hollow protective shell (1) is fixedly connected with an alarm (203) near the edge.

3. The circuit breaker mechanical characteristics online monitoring device according to claim 2, characterized in that: The top of the front heat conducting plate (205) is fixedly connected to the front side of the metal electrode (8), and the plurality of insulating sleeves (204) are all fixedly connected at the same level.

4. The circuit breaker mechanical characteristics online monitoring device according to claim 1, characterized in that: A display screen (19) is fixedly connected to the middle of the front side of the hollow protective shell (1), and a nameplate (18) is fixedly connected to the front side of the hollow protective shell (1) near the edge.

5. The circuit breaker mechanical characteristics online monitoring device according to claim 1, characterized in that: The front bottom of the hollow protective shell (1) is provided with a plurality of second wire grooves (20), and the front side of the second wire grooves (20) near the edge is threadedly connected with a plurality of fixing screws (16).

6. The circuit breaker mechanical characteristics online monitoring device according to claim 5, characterized in that: The rear side of the inner wall of the second wire slot (20) is fixedly connected to the second metal electrode (14), and the rear side of the second metal electrode (14) is fixedly connected to the arc extinguishing chamber (15).

7. The circuit breaker mechanical characteristics online monitoring device according to claim 6, characterized in that: The top of the arc extinguishing chamber (15) is fixedly connected to the bottom of the fixed brake block (13), and the top of the fixed brake block (13) is in contact with the outer wall of the movable brake block (12).

8. The circuit breaker mechanical characteristics online monitoring device according to claim 1, characterized in that: The outer wall of the sliding rod (11) is slidably connected to the inner wall of the rotating block (4), and the outer wall of the rotating shaft (3) is fixedly connected to a pull handle (21).

Images