Universal circuit breaker for power system

Abstract

The utility model discloses a universal circuit breaker for an electric power system, which relates to the technical field of circuit breakers and comprises a circuit breaker body, wiring grooves are symmetrically arranged at the upper end and the lower end of the circuit breaker body, and threaded holes communicated with the wiring grooves are symmetrically arranged on one side of the circuit breaker body. One side of the circuit breaker body is symmetrically provided with a sliding groove and a containing groove which are communicated with each other, when a wire copper wire lug is externally connected, a bending structure formed by a crank cross rod and a traction rod is driven by a limiting sliding block to enable a traction clamping plate to extend out of a wiring groove, the wire copper wire lug is clamped through the traction clamping plate, at the moment, a tension spring is stretched, and after clamping is completed, the wire copper wire lug is pulled out. During installation, the pulling force generated by the tension spring pulls the wire copper wire lug into the wiring groove, and the blocking bulge forms limiting blocking, so that the traction clamping plate clamps the copper wire lug to stay in the area of the threaded hole, the alignment of the hole of the copper wire lug and the threaded hole is realized, the difficulty of externally connecting the wire copper wire lug is further reduced, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a universal circuit breaker for a power system. Background Art

[0002] A general-purpose circuit breaker, also known as a frame circuit breaker, is a mechanical switching device that can connect and carry current under normal conditions and can also connect and carry current under specified abnormal circuit conditions. It is one of the most important components in a DC system, and its stable and reliable operation will directly ensure the safety of the entire power system.

[0003] The Chinese patent authorization announcement number is CN220208881U, and its name is circuit breaker, including a circuit breaker body, a shell, a first mounting part and a second mounting part; the first mounting part includes a first shell, a connecting plate, a pressure block and a compression spring, the first shell is fixedly arranged on the back of the shell, and the side of the first shell away from the shell is open, the pressure block is fixedly arranged on the side of the connecting plate away from the shell, the pressure block is located in the middle of the first shell, and the compression spring is located between the first shell and the connecting plate; the second mounting part includes a second shell, two columns and two limit springs, the second shell is disassembled and arranged on the inner side of the first shell, the outer side wall of the second shell is fitted with the inner side wall of the first shell, the two columns are respectively slidably arranged at the second through hole, and the end of the two columns close to each other is a clamping end, and the clamping end can be clamped on both sides of the pressure block. Provide a circuit breaker that can be quickly installed in a distribution box without tools;

[0004] The disadvantages of the above-mentioned prior art solutions are that: although the above-mentioned solutions can quickly install the circuit breaker in the distribution box, when wiring, the staff needs to align the copper wire ear at one end of the wire and place it in the connection port set on the circuit breaker, and then fix it with bolts to achieve the connectivity of the line. However, in the process of aligning the copper wire ear with the connection port, due to the relatively small internal space of the distribution box, it is easy to cause the staff's operation to be restricted, making it difficult to align or the alignment process is relatively time-consuming, thereby reducing work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a universal circuit breaker for an electric power system to solve the technical problems mentioned in the above background technology.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A universal circuit breaker for an electric power system comprises a circuit breaker body, wherein the upper and lower ends of the circuit breaker body are symmetrically provided with wiring slots, and one side of the circuit breaker body is symmetrically provided with threaded holes communicating with the wiring slots;

[0008] One side of the circuit breaker body is symmetrically provided with interconnected sliding grooves and accommodating grooves, a tension spring is arranged inside the accommodating groove, the top of the tension spring is connected with a limiting slider matching the accommodating groove, one side of the limiting slider is connected with a crank cross bar, one side of the crank cross bar is provided with a traction rod, one end of the traction rod is connected with a traction splint, and the inner wall of the traction splint is symmetrically provided with limiting protrusions.

[0009] As a further solution of the utility model: the slide groove and the receiving groove are located outside the threaded hole, and the width of the receiving groove is greater than that of the slide groove, the receiving groove and the wiring groove are connected, and the crank cross bar is located inside the wiring groove.

[0010] As a further solution of the utility model: a lever matching the slide slot is connected to the other side of the limit slider, one end of the lever passes through the slide slot, and a push-pull block is connected to the passing end.

[0011] As a further solution of the utility model: the limit slider, crank cross bar, traction rod, shift rod and push-pull block are all made of insulating rubber material.

[0012] As a further solution of the utility model: blocking protrusions are symmetrically arranged on the inner wall of the slide groove near the lever, and the blocking protrusions are made of elastic rubber material.

[0013] As a further solution of the utility model: a fixing slot is provided on the other side of the circuit breaker body, and a switch is provided in the central area of ​​one side of the circuit breaker body.

[0014] Beneficial effects of the utility model:

[0015] The utility model discloses that when the copper wire ear of the external conductor is connected, the limit slider drives the bending structure composed of the crank cross bar and the traction rod to extend the traction clamp to the outside of the wiring groove, and the traction clamp is used to clamp the copper wire ear of the conductor. At this time, the tension spring is stretched. After the clamping is completed, the tension force generated by the tension spring pulls the copper wire ear of the conductor to the inside of the wiring groove, and the blocking protrusion forms a limit blockage, so that the traction clamp clamps the copper wire ear and stays in the area of ​​the threaded hole, so that the hole of the copper wire ear is aligned with the threaded hole. The device further reduces the difficulty of connecting the copper wire ear of the external conductor and improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional schematic diagram of the whole device in the utility model;

[0018] Figure 2 This is a schematic diagram of the slide structure in the utility model;

[0019] Figure 3This is a schematic diagram of the crank crossbar structure in the utility model;

[0020] Figure 4 It is a schematic diagram of the traction splint structure in the utility model.

[0021] In the figure: 1. Circuit breaker body; 2. Wiring slot; 3. Threaded hole; 4. Slide slot; 5. Accommodating slot; 6. Tension spring; 7. Limiting slider; 8. Crank cross bar; 9. Pull rod; 10. Pulling splint; 11. Limiting protrusion; 12. Push rod; 13. Push-pull block; 14. Blocking protrusion; 15. Fixed slot; 16. Switch. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, a universal circuit breaker for an electric power system comprises a circuit breaker body 1, wherein the upper and lower ends of the circuit breaker body 1 are symmetrically provided with wiring slots 2, the wiring slots 2 are used for externally connecting copper wire ears of a conductor, a side of the circuit breaker body 1 is symmetrically provided with threaded holes 3 communicating with the wiring slots 2, the threaded holes 3 are used for installing screws, thereby fixing the copper wire ears of the conductor to achieve connection and conduction between the device and the line, a side of the circuit breaker body 1 is symmetrically provided with communicating slide slots 4 and accommodating slots 5, a tension spring 6 is arranged inside the accommodating slot 5, a limiting slider 7 matching the accommodating slot 5 is connected to the top of the tension spring 6, the accommodating slot 5 provides independent movement space for the tension spring 6 and the limiting slider 7, thereby ensuring that the tension spring 6 and the limiting slider 7 are in use In order to ensure the stability during use, a crank cross bar 8 is connected to one side of the limit slider 7, a traction rod 9 is arranged on one side of the crank cross bar 8, a traction splint 10 is connected to one end of the traction rod 9, and a limiting protrusion 11 is symmetrically arranged on the inner wall of the traction splint 10. When the device is installed on the external wire copper wire ear, the limit slider 7 can be driven to slide along the inner wall of the accommodating groove 5, so that the tension spring 6 is deformed and stretched, so that the traction splint 10 is extended to the outside of the wiring groove 2 through the bending structure formed by the crank cross bar 8 and the traction rod 9, and the traction splint 10 is used to clamp the wire copper wire ear, and then the tension generated by the tension spring 6 is used to pull the wire copper wire ear to the inside of the wiring groove 2, so as to realize the alignment of the wire copper wire ear with the threaded hole 3.

[0024] In this embodiment, specifically, the slide groove 4 and the receiving groove 5 are located outside the threaded hole 3, and the width of the receiving groove 5 is greater than that of the slide groove 4. The receiving groove 5 is connected to the wiring groove 2, and the crank cross bar 8 is located inside the wiring groove 2.

[0025] In this embodiment, specifically, the other side of the limit slider 7 is connected to a lever 12 that matches the slide slot 4, one end of the lever 12 passes through the slide slot 4, and the passing end is connected to a push-pull block 13. The driving structure formed by the lever 12 and the push-pull block 13 facilitates external staff to push and pull, thereby achieving control of the traction splint 10.

[0026] In the present embodiment, specifically, the limit slider 7, crank cross bar 8, traction rod 9, shift rod 12 and push-pull block 13 are all made of insulating rubber material, which ensures the safety of the staff when pushing and pulling and avoids accidental electric shock accidents.

[0027] In the present embodiment, specifically, the inner wall of the slide groove 4 is symmetrically provided with blocking protrusions 14 near the lever 12. The blocking protrusions 14 are made of elastic rubber. When the tension spring 6 pulls the traction splint 10 to pull the copper wire ear, the blocking protrusions 14 can block the lever 12, so that the traction splint 10 clamps the copper wire ear and stays in the area of ​​the threaded hole 3, so that the hole of the copper wire ear is aligned with the threaded hole 3, so as to facilitate preliminary fixation. After the preliminary fixation is completed, the staff pulls down the traction rod 9 through the push-pull block 13, so that the traction splint 10 is detached from the copper wire ear, and the traction rod 9 returns to its original position, thereby completing the resetting of the traction splint 10, which is convenient for the next use.

[0028] In this embodiment, specifically, a fixing slot 15 is provided on the other side of the circuit breaker body 1, and a switch 16 is provided in the central area of ​​one side of the circuit breaker body 1. The fixing slot 15 is provided to facilitate the staff to install the device as a whole into the distribution box, and to facilitate the initial fixation during installation, thereby facilitating subsequent installation operations. The switch 16 is convenient for external staff to control the on and off of the device to achieve control of the line.

[0029] The working principle of the utility model is as follows: when the device is in use, the limit slider 7 is first pulled to one side by the push-pull block 13, so that the tension spring 6 is deformed and stretched, and the traction splint 10 extends to the outside of the wiring slot 2 to clamp the copper wire ear of the conductor, and then the hand is released. The tension generated by the tension spring 6 pulls the copper wire ear of the conductor. During the traction process, the blocking protrusion 14 can block the lever 12, so that the traction splint 10 clamps the copper wire ear and stays in the area of ​​the threaded hole 3, aligning the hole of the copper wire ear with the threaded hole 3, so as to facilitate preliminary fixation. After the preliminary fixation is completed, the staff pulls down the traction rod 9 through the push-pull block 13, so that the traction splint 10 is detached from the copper wire ear, and the traction splint 10 is reset to facilitate the next use.

[0030] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A universal circuit breaker for an electric power system, comprising a circuit breaker body (1), wherein the upper and lower ends of the circuit breaker body (1) are symmetrically provided with wiring slots (2), and one side of the circuit breaker body (1) is symmetrically provided with threaded holes (3) communicating with the wiring slots (2); characterized in that: One side of the circuit breaker body (1) is symmetrically provided with interconnected sliding grooves (4) and accommodating grooves (5); a tension spring (6) is arranged inside the accommodating groove (5); the top of the tension spring (6) is connected to a limit slider (7) matching the accommodating groove (5); one side of the limit slider (7) is connected to a crank cross bar (8); one side of the crank cross bar (8) is provided with a traction rod (9); one end of the traction rod (9) is connected to a traction splint (10); and the inner wall of the traction splint (10) is symmetrically provided with limit protrusions (11).

2. A universal circuit breaker for a power system according to claim 1, characterized in that: The slide groove (4) and the receiving groove (5) are located outside the threaded hole (3), and the width of the receiving groove (5) is greater than that of the slide groove (4). The receiving groove (5) and the wiring groove (2) are connected, and the crank cross bar (8) is located inside the wiring groove (2).

3. A universal circuit breaker for a power system according to claim 1, characterized in that: The other side of the limit sliding block (7) is connected to a lever (12) matching the sliding groove (4); one end of the lever (12) passes through the sliding groove (4), and the passing end is connected to a push-pull block (13).

4. A universal circuit breaker for a power system according to claim 3, characterized in that: The limit slider (7), crank cross bar (8), traction rod (9), shift rod (12) and push-pull block (13) are all made of insulating rubber material.

5. A universal circuit breaker for a power system according to claim 1, characterized in that: The inner wall of the slide groove (4) is symmetrically provided with blocking protrusions (14) near the lever (12), and the blocking protrusions (14) are made of elastic rubber material.

6. A universal circuit breaker for a power system according to claim 1, characterized in that: A fixing slot (15) is provided on the other side of the circuit breaker body (1), and a switch (16) is provided in the central area of ​​one side of the circuit breaker body (1).

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