A universal circuit breaker contact system

Abstract

This utility model provides a universal circuit breaker contact system, relating to the field of mechanical structure design technology. It includes a housing, with a threaded rod rotatably connected to the inner wall of the housing. Two sliders are symmetrically threaded to the outer wall of the threaded rod. The outer walls of the sliders are slidably connected to the inner wall of the housing. A connecting rod is fixedly connected to the outer wall of the sliders, and the outer wall of the connecting rod is slidably connected to the inner wall of the housing. A fixing rod is fixedly connected to the outer wall of the connecting rod, and the outer wall of the fixing rod is slidably connected to the inner wall of the housing. A clamping plate is fixedly connected to the outer wall of the fixing rod, and a rubber pad is fixedly connected to the outer wall of the clamping plate. This utility model, employing a threaded rod and clamping plate structure, can effectively clamp wires of different sizes by adjusting the distance between the two clamping plates. Furthermore, the limiter structure effectively prevents clamping plate misalignment, and the rubber pad structure on the surface of the clamping plate prevents mechanical vibration from damaging the wire.

Description

Technical Field

[0001] This utility model relates to the field of mechanical structure design technology, and in particular to a universal circuit breaker contact system. Background Technology

[0002] Universal circuit breakers are critical protective devices in power systems, used to distribute electrical energy, control circuit switching, and quickly interrupt current in the event of short circuits, overloads, and other faults to ensure power grid safety. The contact system is the core component of the circuit breaker, directly responsible for current conduction, interruption, and arc extinguishing; its performance directly affects the reliability, lifespan, and safety of the circuit breaker.

[0003] Most existing universal circuit breaker contact systems have the problem that they can only be fixedly connected to wires of a fixed size. When the wire size changes, a circuit breaker of the corresponding size needs to be replaced. This not only leads to material waste but also affects the work process, thus making the device less practical. Utility Model Content

[0004] The purpose of this invention is to solve the problem that most universal circuit breaker contact systems in the prior art can only be used to connect wires of a fixed size. When the size of the wire changes, a circuit breaker of the corresponding size needs to be replaced. This not only leads to material waste but also affects the working process, thus making the device less practical. Therefore, this invention proposes a universal circuit breaker contact system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a universal circuit breaker contact system, comprising a housing, a threaded rod rotatably connected to the inner wall of the housing, two sliders symmetrically threaded to the outer wall of the threaded rod, the outer walls of the sliders slidably connected to the inner wall of the housing, a connecting rod fixedly connected to the outer wall of the sliders, the outer wall of the connecting rod slidably connected to the inner wall of the housing, a fixing rod fixedly connected to the outer wall of the connecting rod, the outer wall of the fixing rod slidably connected to the inner wall of the housing, a clamping plate fixedly connected to the outer wall of the fixing rod, a rubber pad fixedly connected to the outer wall of the clamping plate, a knob fixedly connected to one end of the threaded rod, a limit structure installed on the outer wall of the housing corresponding to the knob position, and threads in opposite directions symmetrically arranged on the outer wall of the threaded rod.

[0006] Preferably, the limiting structure consists of a limiter installed on the outer wall of the housing at the position corresponding to the knob, a spring strip fixedly connected to the inner wall of the limiter, a slide rod fixedly connected to the outer wall of one end of the spring strip, the outer wall of the slide rod slidably connected to the inner wall of the limiter, and a friction pad fixedly connected to the outer wall of the slide rod, the outer wall of the friction pad adhering to the outer wall of the knob.

[0007] Preferably, a connector is slidably connected to the inner wall of the housing, a contactor is fixedly connected to the outer wall of the connector, a positioning rod is fixedly connected to one end of the connector, and the outer wall of the positioning rod is slidably connected to the inner wall of the housing.

[0008] Preferably, a spring is fixedly connected to one end of the positioning rod, the outer wall of the spring is fixedly connected to the inner wall of the housing, and a sliding rod is fixedly connected to the outer wall of the positioning rod.

[0009] Preferably, the outer wall of the sliding rod is slidably connected to the inner wall of the housing, a handle is fixedly connected to the outer wall of one end of the sliding rod, and a pin is slidably connected to the outer wall of the housing corresponding to the position of the positioning rod.

[0010] Preferably, the outer wall of the pin is engaged with the inner wall of the positioning rod, and a sensor is installed on the outer wall of the housing corresponding to the position of the pin.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, a structure such as a threaded rod and a clamping plate is adopted. For wires of different sizes, the spacing between the two clamping plates can be adjusted to achieve a good clamping effect. Secondly, the limiter structure can effectively prevent the clamping plates from shifting. In addition, the rubber pad structure on the surface of the clamping plates can prevent mechanical vibration from damaging the wires.

[0013] 2. In this utility model, a sensor and a pin are used. When the current is too large, the sensor drives the pin to disengage from the positioning rod. Under the action of the spring, the connector will drive the contactor to move, thereby disengaging from the wire and protecting the device. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional structural diagram of a universal circuit breaker contact system;

[0015] Figure 2 This utility model provides a side view of the contact system of a universal circuit breaker.

[0016] Figure 3 This utility model provides a schematic diagram of the clamping structure of a universal circuit breaker contact system;

[0017] Figure 4 This utility model provides a schematic diagram of the limiting structure of a universal circuit breaker contact system;

[0018] Figure 5 This utility model presents a schematic diagram of the linkage structure of a universal circuit breaker contact system.

[0019] Legend: 1. Housing; 2. Threaded rod; 201. Knob; 3. Slider; 4. Connecting rod; 5. Fixing rod; 6. Clamping plate; 7. Slide rod; 701. Friction pad; 702. Spring strip; 703. Limiter; 8. Connector; 9. Contactor; 10. Positioning rod; 11. Spring; 12. Sliding rod; 13. Handle; 14. Pin; 15. Sensor. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figures 1-5 As shown, this utility model provides a technical solution: a universal circuit breaker contact system, including a housing 1, a threaded rod 2 rotatably connected to the inner wall of the housing 1, two sliders 3 symmetrically threaded to the outer wall of the threaded rod 2, the outer walls of the sliders 3 slidably connected to the inner wall of the housing 1, a connecting rod 4 fixedly connected to the outer wall of the sliders 3, the outer wall of the connecting rod 4 slidably connected to the inner wall of the housing 1, a fixing rod 5 fixedly connected to the outer wall of the connecting rod 4, the outer wall of the fixing rod 5 slidably connected to the inner wall of the housing 1, a clamping plate 6 fixedly connected to the outer wall of the fixing rod 5, and a rubber pad fixedly connected to the outer wall of the clamping plate 6. A knob 201 is fixedly connected to one end of the rod 2. A limiting structure is installed on the outer wall of the outer shell 1 at the position corresponding to the knob 201. The outer wall of the threaded rod 2 is symmetrically provided with threads in opposite directions. The limiting structure is a limiter 703 installed on the outer wall of the outer shell 1 at the position corresponding to the knob 201. A spring strip 702 is fixedly connected to the inner wall of the limiter 703. A slide rod 7 is fixedly connected to the outer wall of one end of the spring strip 702. The outer wall of the slide rod 7 is slidably connected to the inner wall of the limiter 703. A friction pad 701 is fixedly connected to the outer wall of the slide rod 7. The outer wall of the friction pad 701 is attached to the outer wall of the knob 201.

[0023] In this embodiment, the wire is first inserted along the slot on the outer wall of the housing 1, so that the wire contacts the surface of the contactor 9. Then, the slide rod 7 slides along the inner wall of the limiter 703, so that the friction pad 701 disengages from the surface of the knob 201. At this time, the spring strip 702 is in a compressed state. Then, the knob 201 is rotated. The rotation of the knob 201 drives the threaded rod 2 to rotate on the inner wall of the housing 1. The rotation of the threaded rod 2 drives the two sliders 3 to move in opposite directions along the inner wall of the housing 1 on the outer wall of the threaded rod 2. The movement of the sliders 3 drives the connecting rod 4 and the fixing rod 5 to move accordingly. The movement of the fixing rod 5 drives the connecting rod 4 and the fixing rod 5 to move accordingly. The clamping plates 6 move. After the two clamping plates 6 are in contact with the surface of the wire and clamp the wire, the knob 201 is stopped. Then the slide bar 7 is released. Under the action of the spring bar 702, the friction pad 701 is re-attached to the surface of the knob 201 to limit and fix it. This part mainly introduces the working principle of the clamping structure. It adopts a structure such as threaded rod and clamping plates. For wires of different sizes, the distance between the two clamping plates can be adjusted to achieve a good clamping effect. Secondly, the limiter structure can effectively prevent the clamping plates from shifting. In addition, the rubber pad structure on the surface of the clamping plates can prevent mechanical vibration from damaging the wire.

[0024] Example 2: As Figures 1-5 As shown, a connector 8 is slidably connected to the inner wall of the outer casing 1, a contactor 9 is fixedly connected to the outer wall of the connector 8, a positioning rod 10 is fixedly connected to one end of the connector 8, the outer wall of the positioning rod 10 is slidably connected to the inner wall of the outer casing 1, a spring 11 is fixedly connected to one end of the positioning rod 10, the outer wall of the spring 11 is fixedly connected to the inner wall of the outer casing 1, a sliding rod 12 is fixedly connected to the outer wall of the positioning rod 10, the outer wall of the sliding rod 12 is slidably connected to the inner wall of the outer casing 1, a handle 13 is fixedly connected to one end of the outer wall of the sliding rod 12, a pin 14 is slidably connected to the outer wall of the outer casing 1 at the position corresponding to the positioning rod 10, the outer wall of the pin 14 is engaged with the inner wall of the positioning rod 10, and a sensor 15 is installed on the outer wall of the outer casing 1 at the position corresponding to the pin 14.

[0025] In this embodiment, when sensor 15 detects excessive current in the wire, sensor 15 drives pin 14 to disengage from the inner wall of positioning rod 10. Under the action of spring 11, it pushes positioning rod 10 to move. The movement of positioning rod 10 causes connector 8 to slide along the inner wall of housing 1, and causes contactor 9 to disengage from the wire, thus disconnecting the circuit. After the circuit is repaired, handle 13 is moved. The movement of handle 13 causes sliding rod 12 to move. The movement of sliding rod 12 causes connector 8 and contactor 9 to move, and contactor 9 to re-engage with the wire. At this time, spring 11 is compressed again. Then, sensor 15 drives pin 14 to re-lock onto the inner wall of positioning rod 10, limiting and fixing the device. This part mainly introduces the working principle of the sensor structure. Using a sensor and pin structure, when the current is too high, the sensor drives pin to disengage from positioning rod. Under the action of spring, it drives connector to move contactor, thereby disengaging from the wire and protecting the device.

[0026] The working principle of this embodiment is as follows: First, insert the wire along the slot on the outer wall of the outer casing 1 so that the wire contacts the surface of the contactor 9. Then, slide the slide bar 7 along the inner wall of the limiter 703 so that the friction pad 701 is disengaged from the surface of the knob 201. At this time, the spring bar 702 is in a compressed state. Then, rotate the knob 201. The rotation of the knob 201 drives the threaded rod 2 to rotate on the inner wall of the outer casing 1. The rotation of the threaded rod 2 drives the two sliders 3 to move in opposite directions along the inner wall of the outer casing 1 on the outer wall of the threaded rod 2. The movement of the sliders 3 drives the connecting rod 4 and the fixing rod 5 to move accordingly. The movement of the fixing rod 5 drives the clamping plate 6 to move. When the two clamping plates 6 are in contact with the surface of the wire and clamp the wire, stop rotating the knob 201. Then, release the slide bar 7. Under the action of the spring bar 702, the friction pad... 701 is reattached to the surface of knob 201 for positioning and fixation. When sensor 15 detects excessive current in the wire, sensor 15 drives pin 14 to disengage from the inner wall of positioning rod 10, and under the action of spring 11, pushes positioning rod 10 to move. The movement of positioning rod 10 causes connector 8 to slide along the inner wall of housing 1, and causes contactor 9 to disengage from the wire, thereby disconnecting the circuit. After the circuit is repaired, handle 13 is moved. The movement of handle 13 causes sliding rod 12 to move, which in turn causes connector 8 and contactor 9 to move, and makes contactor 9 re-engage with the wire. At this time, spring 11 is compressed again. Then sensor 15 drives pin 14 to re-lock onto the inner wall of positioning rod 10 to limit and fix the device.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A universal circuit breaker contact system, comprising a housing (1), characterized in that: The inner wall of the outer shell (1) is rotatably connected to a threaded rod (2). The outer wall of the threaded rod (2) is symmetrically connected to two sliders (3). The outer wall of the sliders (3) is slidably connected to the inner wall of the outer shell (1). The outer wall of the sliders (3) is fixedly connected to a connecting rod (4). The outer wall of the connecting rod (4) is slidably connected to the inner wall of the outer shell (1). The outer wall of the connecting rod (4) is fixedly connected to a fixing rod (5). The outer wall of the fixing rod (5) is slidably connected to the inner wall of the outer shell (1). The outer wall of the fixing rod (5) is fixedly connected to a clamping plate (6). The outer wall of the clamping plate (6) is fixedly connected to a rubber pad. A knob (201) is fixedly connected to one end of the threaded rod (2). A limit structure is installed on the outer wall of the outer shell (1) at the position corresponding to the knob (201). The outer wall of the threaded rod (2) is symmetrically provided with threads in opposite directions.

2. The universal circuit breaker contact system according to claim 1, characterized in that: The limiting structure is a limiter (703) installed on the outer wall of the outer shell (1) at the position corresponding to the knob (201). A spring strip (702) is fixedly connected to the inner wall of the limiter (703). A slide rod (7) is fixedly connected to the outer wall of one end of the spring strip (702). The outer wall of the slide rod (7) is slidably connected to the inner wall of the limiter (703). A friction pad (701) is fixedly connected to the outer wall of the slide rod (7). The outer wall of the friction pad (701) is attached to the outer wall of the knob (201).

3. A universal circuit breaker contact system according to claim 2, characterized in that: A connector (8) is slidably connected to the inner wall of the outer shell (1), a contactor (9) is fixedly connected to the outer wall of the connector (8), and a positioning rod (10) is fixedly connected to one end of the connector (8). The outer wall of the positioning rod (10) is slidably connected to the inner wall of the outer shell (1).

4. A universal circuit breaker contact system according to claim 3, characterized in that: A spring (11) is fixedly connected to one end of the positioning rod (10), the outer wall of the spring (11) is fixedly connected to the inner wall of the outer shell (1), and a sliding rod (12) is fixedly connected to the outer wall of the positioning rod (10).

5. A universal circuit breaker contact system according to claim 4, characterized in that: The outer wall of the sliding rod (12) is slidably connected to the inner wall of the outer shell (1). A handle (13) is fixedly connected to the outer wall of one end of the sliding rod (12). A pin (14) is slidably connected to the outer wall of the outer shell (1) at the position corresponding to the positioning rod (10).

6. A universal circuit breaker contact system according to claim 5, characterized in that: The outer wall of the pin (14) is engaged on the inner wall of the positioning rod (10), and a sensor (15) is installed on the outer wall of the outer shell (1) at the position corresponding to the pin (14).

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