Electrical engineering power distribution circuit breaker

Abstract

The utility model relates to the technical field of electrical engineering, and discloses an electrical engineering power distribution circuit breaker, which comprises a shell, a side plate, two locking screws, two wiring holes and a mounting groove, the side plate is arranged on one side wall of the shell, the two locking screws are respectively arranged at the upper end and the lower end of the center of the front end surface of the shell, and the two wiring holes are arranged in the mounting groove. The two wiring holes are formed in the rear portions of the centers of the upper end face and the lower end face of the shell respectively, the mounting groove is formed in the center of the rear end face of the shell, a first rubber pad is arranged on the upper portion of the center of the rear inner wall of the mounting groove, a third sliding groove is formed in the center of the lower inner wall of the mounting groove, and a clamping module is arranged in the third sliding groove. Adjusting structures are arranged at the upper and lower ends of the center of the front end face of the shell. According to the utility model, the connecting wire heads are connected through the two adjusting structures, so that connection is convenient while stable connection is ensured, and during installation, the installation strips are clamped through the clamping module, thereby facilitating installation and later-stage disassembly and maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical engineering, in particular to an electrical engineering power distribution circuit breaker. Background Art

[0002] A circuit breaker is generally composed of a contact system, an arc extinguishing system, an operating mechanism, a release and a casing. A circuit breaker is a switching device that can carry current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time. It is an indispensable part of the electrical engineering distribution circuit.

[0003] During the use of existing electrical engineering distribution circuit breakers, the circuit breaker needs to be installed on a mounting bar. During installation, the mounting groove at the rear end of the circuit breaker is too hard, which makes it inconvenient to install and disassemble and maintain later. Therefore, those skilled in the art provide an electrical engineering distribution circuit breaker to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings existing in the prior art and proposes an electrical engineering distribution circuit breaker. When installing, a clamping block is clamped on the lower end of the mounting bar, the shell is pushed upward, and then the mounting slot is clamped on the mounting bar. The clamping block is pushed upward by the tension of the second spring to fix the shell to the front end of the mounting bar, and then the limit block is pushed backward so that the limit block slides into the slot to limit the clamping block. When disassembly is required, the limit block is pushed toward the front end to release the restriction on the clamping block, and the shell is lifted upward to be removed, so as to facilitate later replacement and maintenance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrical engineering power distribution circuit breaker, comprising a shell, a side plate, two locking screws, two wiring holes and a mounting groove, wherein the side plate is arranged on one side wall of the shell, the two locking screws are respectively arranged at the upper and lower ends of the center of the front end face of the shell, the two wiring holes are respectively arranged at the rear of the center of the upper and lower end faces of the shell, the mounting groove is arranged at the center of the rear end face of the shell, a first rubber pad is arranged at the upper center of the rear inner wall of the mounting groove, a third slide groove is opened at the center of the lower inner wall of the mounting groove, a clamping module is arranged inside the third slide groove, an adjustment structure is arranged at the upper and lower ends of the center of the front end face of the shell, and a second slide groove is opened at the center of the front and rear inner walls of the two wiring holes;

[0006] Through the above technical solution, the connecting wire heads are connected through two adjustment structures to ensure stable connection and facilitate connection. During installation, the mounting bar is clamped by the clamping module to facilitate installation and subsequent disassembly and maintenance.

[0007] Further, the adjustment structure at the upper part includes a plug plate, a first inclined surface, a first clamping plate, a second clamping plate, a terminal block, a first slide groove, a second inclined surface, a through hole and a terminal block, wherein the first slide groove is arranged on the front end surface of the shell, the plug plate is arranged inside the first slide groove, the first inclined surface is arranged at the rear of the upper end surface of the plug plate, the terminal block is arranged inside the terminal hole, the second inclined surface is arranged at the lower part of the center of the front end surface of the terminal block, the first clamping plate and the second clamping plate are arranged at the front and rear ends of the upper end surface of the terminal block respectively, the through hole is arranged at the upper part of the center of the front end surface of the first clamping plate, and the terminal block is arranged at the upper part of the center of the front end surface of the second clamping plate;

[0008] Through the above technical solution, by pushing the plug plate toward the rear end, the first clamping plate and the second clamping plate are pushed out of the wiring hole, and then the wire ends are wrapped around the terminal posts, making the connection more convenient and more stable.

[0009] Furthermore, a contact is fixedly connected to the lower center of the rear end surface of the wiring board, and an elastic connecting wire is fixedly connected to the rear end of the contact;

[0010] Through the above technical solution, it is convenient to connect the contacts through the elastic connecting wire and connect them to the internal structure of the shell, preventing the terminal board from moving up and down to affect the connection circuit.

[0011] Furthermore, a slider is fixedly connected to the lower center of the front end surface of the first clamping plate and the center of the rear end surface of the second clamping plate, and a first spring is fixedly connected to the upper end surfaces of the two sliders;

[0012] Through the above technical solution, the first clamping plate and the second clamping plate can be easily pushed back into the wiring hole by the tension of the first spring.

[0013] Further, the clamping module includes a second spring, a clamping block, a second rubber pad, a limit block and a fourth slide slot, the second spring is fixedly connected to the lower inner wall of the third slide slot, the clamping block is arranged on the upper end of the second spring, the second rubber pad is arranged on the rear inner wall of the clamping block, the fourth slide slot is arranged at the lower rear end of one side wall of the housing, and the limit block is slidably connected inside the fourth slide slot;

[0014] Through the above technical solution, the clamping block is pushed upward by the tension of the second spring, and the shell is fixed to the front end of the mounting bar, which is convenient for installation and subsequent disassembly and maintenance.

[0015] Furthermore, a slot is provided at the lower part of the front end of one side wall of the clamping block, and the limit block is slidably connected inside the slot;

[0016] Through the above technical solution, it is convenient for the limiting block to slide into the card slot to limit the clamping block.

[0017] Furthermore, the upper and lower adjustment structures are symmetrically arranged with the center point of the housing as the axis;

[0018] The above technical solution makes it easy to connect the two ends.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, when installing the electrical engineering distribution circuit breaker, the clamping block is clamped on the lower end of the mounting bar, the housing is pushed upward, and then the mounting slot is clamped on the mounting bar. The clamping block is pushed upward by the tension of the second spring to fix the housing at the front end of the mounting bar, and then the limit block is pushed backward so that the limit block slides into the slot to limit the clamping block. When disassembly is required, the limit block is pushed toward the front end to release the restriction on the clamping block, and the housing is lifted upward to be removed, which is convenient for later replacement and maintenance.

[0021] 2. In the utility model, by pushing the two plug plates backward, the two plug plates slide into the two first slide grooves, and then the two first inclined surfaces contact the two second inclined surfaces to push the two terminal blocks to the outside of the two terminal holes, the two first clamping plates and the two second clamping plates are pushed out of the two terminal holes, the connecting wire ends are wrapped around the two terminal posts, and the two plug plates are pulled forward. The two first clamping plates and the two second clamping plates push the two first clamping plates and the two second clamping plates back into the two terminal holes through the tension of the four first springs, and then the two locking screws are rotated forward to push the two first clamping plates backward, and the two terminal posts enter the two through holes. The two first clamping plates and the two second clamping plates clamp the connecting wire ends on the terminal posts, which is convenient for wiring and can also ensure a more stable connection.

[0022] 3. In the present invention, the first rubber pad and the second rubber pad are tightly attached to the rear end surface of the mounting strip, so as to fill the gap between the mounting groove and the mounting strip, thereby improving the stability after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of an electrical engineering power distribution circuit breaker proposed by the utility model;

[0024] Figure 2 A side sectional view of an electrical engineering power distribution circuit breaker proposed by the utility model;

[0025] Figure 3 This is a top sectional view of a clamp block for a power distribution circuit breaker in an electrical engineering proposed by the utility model;

[0026] Figure 4 for Figure 2 A magnified schematic diagram of center A.

[0027] Legend:

[0028] 1. Shell; 2. Side panel; 3. Adjustment structure; 301. Insertion plate; 302. First inclined plane; 303. First clamping plate; 304. Second clamping plate; 305. Terminal block; 306. First slide groove; 307. Elastic connecting line; 308. Contact; 309. Second inclined plane; 310. Slider; 311. Second slide groove; 312. First spring; 313. Through hole; 314. Terminal post; 4. Locking screw; 5. Wiring hole; 6. Mounting slot; 7. First rubber pad; 8. Clamping module; 801. Third slide groove; 802. Second spring; 803. Clamping block; 804. Second rubber pad; 805. Limiting block; 806. Fourth slide groove; 807. Card slot. DETAILED DESCRIPTION

[0029] 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 in 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.

[0030] Reference Figure 1-4 , the utility model provides an embodiment: an electrical engineering distribution circuit breaker, including a shell 1, a side plate 2, two locking screws 4, two wiring holes 5 and a mounting groove 6, the side plate 2 is arranged on one side wall of the shell 1, the two locking screws 4 are respectively arranged at the upper and lower ends of the center of the front end surface of the shell 1, the two wiring holes 5 are respectively arranged at the rear of the center of the upper and lower end surfaces of the shell 1, the mounting groove 6 is arranged at the center of the rear end surface of the shell 1, a first rubber pad 7 is provided at the upper center of the rear inner wall of the mounting groove 6, a third slide groove 801 is opened at the center of the lower inner wall of the mounting groove 6, a clamping module 8 is provided inside the third slide groove 801, during installation, the mounting bar is clamped by the clamping module 8, which is convenient for installation and later disassembly and maintenance, an adjustment structure 3 is provided at the upper and lower ends of the center of the front end surface of the shell 1, and the connecting wire heads are connected through the two adjustment structures 3 to ensure stable connection and facilitate connection, and a second slide groove 311 is opened at the center of the front and rear inner walls of the two wiring holes 5.

[0031] The upper adjustment structure 3 includes a plug plate 301, a first inclined surface 302, a first clamping plate 303, a second clamping plate 304, a terminal block 305, a first slide groove 306, a second inclined surface 309, a through hole 313 and a terminal 314. The first slide groove 306 is arranged on the front end surface of the housing 1, the plug plate 301 is arranged inside the first slide groove 306, the first inclined surface 302 is arranged at the rear of the upper end surface of the plug plate 301, the terminal block 305 is arranged inside the wiring hole 5, and the second inclined surface 309 is arranged on the terminal block The first clamping plate 303 and the second clamping plate 304 are respectively arranged at the front and rear ends of the upper end surface of the terminal board 305, the through hole 313 is arranged at the upper center of the front end surface of the first clamping plate 303, and the terminal post 314 is arranged at the upper center of the front end surface of the second clamping plate 304. By pushing the plug board 301 to the rear end, the first clamping plate 303 and the second clamping plate 304 are pushed out of the wiring hole 5, and then the wire ends are wrapped around the terminal post 314, which makes the connection more convenient and more stable.

[0032] A contact 308 is fixedly connected to the lower center of the rear end surface of the terminal block 305, and an elastic connecting line 307 is fixedly connected to the rear end of the contact 308, which is convenient for connecting the contact 308 through the elastic connecting line 307 and connecting to the internal structure of the shell 1 to prevent the terminal block 305 from moving up and down and affecting the connection circuit. A slider 310 is fixedly connected to the lower center of the front end surface of the first clamping plate 303 and the center of the rear end surface of the second clamping plate 304. The upper end surfaces of the two sliders 310 are fixedly connected to the first spring 312, which is convenient for pushing the first clamping plate 303 and the second clamping plate 304 back into the wiring hole 5 through the tension of the first spring 312.

[0033] The clamping module 8 includes a second spring 802, a clamping block 803, a second rubber pad 804, a limit block 805 and a fourth slide groove 806. The second spring 802 is fixedly connected to the lower inner wall of the third slide groove 801, the clamping block 803 is arranged at the upper end of the second spring 802, the second rubber pad 804 is arranged on the rear inner wall of the clamping block 803, and the fourth slide groove 806 is arranged at the lower rear end of one side wall of the shell 1. The limit block 805 is slidably connected inside the fourth slide groove 806, and the clamping block 803 is pushed upward by the tension of the second spring 802 to fix the shell 1 to the front end of the mounting strip, so as to facilitate installation and later disassembly and maintenance. A slot 807 is provided at the lower front end of one side wall of the clamping block 803, and the limit block 805 is slidably connected inside the slot 807, so that the limit block 805 can slide into the slot 807 to limit the clamping block 803.

[0034] The upper and lower adjustment structures 3 are symmetrically arranged with the center point of the housing 1 as the axis, so as to facilitate wiring at both ends.

[0035] Working principle: During installation, the clamp block 803 is clamped on the lower end of the installation bar, the shell 1 is pushed upward, and the installation slot 6 is clamped on the installation bar. The clamp block 803 is pushed upward by the tension of the second spring 802, and the shell 1 is fixed to the front end of the installation bar. Then, the limit block 805 is pushed backward, and the limit block 805 slides into the slot 807 to limit the clamp block 803. When disassembly is required, the limit block 805 is pushed to the front end to release the restriction on the clamp block 803, and the shell 1 is lifted upward to be removed for easy replacement and maintenance later.

[0036] The first rubber pad 7 and the second rubber pad 804 are tightly attached to the rear end surface of the mounting strip to fill the gap between the mounting groove 6 and the mounting strip to improve the stability after connection. The two plug boards 301 are pushed backwards, and the two plug boards 301 slide into the two first slide grooves 306. Then, after the two first inclined surfaces 302 contact the two second inclined surfaces 309, the two wiring boards 305 are pushed outwards of the two wiring holes 5, and the two first clamping plates 303 and the two second clamping plates 304 are pushed out of the two wiring holes 5, and the connecting wire ends are wrapped around the two wiring posts. 314, pull the two plug plates 301 forward, the two first clamping plates 303 and the two second clamping plates 304 are pushed back into the two wiring holes 5 by the tension of the four first springs 312, and then the two locking screws 4 are turned forward to push the two first clamping plates 303 backward, and the two terminal posts 314 enter the two through holes 313, and the two first clamping plates 303 and the two second clamping plates 304 clamp the connecting wire heads on the terminal posts 314, which is convenient for wiring and can also ensure a more stable connection.

[0037] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrical engineering power distribution circuit breaker, comprising a housing (1), a side plate (2), two locking screws (4), two wiring holes (5) and a mounting groove (6), wherein the side plate (2) is arranged on a side wall of the housing (1), the two locking screws (4) are respectively arranged at the upper and lower ends of the center of the front end surface of the housing (1), the two wiring holes (5) are respectively arranged at the rear of the center of the upper and lower end surfaces of the housing (1), and the mounting groove (6) is arranged at the center of the rear end surface of the housing (1), characterized in that: A first rubber pad (7) is provided at the upper center of the rear inner wall of the installation groove (6), a third slide groove (801) is provided at the center of the lower inner wall of the installation groove (6), a clamping module (8) is provided inside the third slide groove (801), an adjustment structure (3) is provided at both upper and lower ends of the center of the front end surface of the shell (1), and a second slide groove (311) is provided at the center of the front and rear inner walls of the two wiring holes (5).

2. An electrical engineering power distribution circuit breaker according to claim 1, characterized in that: The adjusting structure (3) at the upper part comprises a plug plate (301), a first inclined surface (302), a first clamping plate (303), a second clamping plate (304), a terminal block (305), a first slide groove (306), a second inclined surface (309), a through hole (313) and a terminal block (314), wherein the first slide groove (306) is arranged on the front end surface of the housing (1), the plug plate (301) is arranged inside the first slide groove (306), and the first inclined surface (302) is arranged on the plug plate (30 1) at the rear of the upper end face, the wiring board (305) is arranged inside the wiring hole (5), the second inclined surface (309) is arranged at the lower center of the front end face of the wiring board (305), the first clamping plate (303) and the second clamping plate (304) are respectively arranged at the front and rear ends of the upper end face of the wiring board (305), the through hole (313) is arranged at the upper center of the front end face of the first clamping plate (303), and the terminal (314) is arranged at the upper center of the front end face of the second clamping plate (304).

3. An electrical engineering power distribution circuit breaker according to claim 2, characterized in that: A contact (308) is fixedly connected to the lower center of the rear end surface of the wiring board (305), and an elastic connecting wire (307) is fixedly connected to the rear end of the contact (308).

4. An electrical engineering power distribution circuit breaker according to claim 2, characterized in that: A slider (310) is fixedly connected at the lower center of the front end surface of the first clamping plate (303) and at the center of the rear end surface of the second clamping plate (304), and a first spring (312) is fixedly connected to the upper end surfaces of the two sliders (310).

5. An electrical engineering power distribution circuit breaker according to claim 1, characterized in that: The clamping module (8) comprises a second spring (802), a clamping block (803), a second rubber pad (804), a limit block (805) and a fourth slide groove (806); the second spring (802) is fixedly connected to the lower inner wall of the third slide groove (801); the clamping block (803) is arranged at the upper end of the second spring (802); the second rubber pad (804) is arranged on the rear inner wall of the clamping block (803); the fourth slide groove (806) is arranged at the lower rear end of one side wall of the housing (1); and the limit block (805) is slidably connected inside the fourth slide groove (806).

6. An electrical engineering power distribution circuit breaker according to claim 5, characterized in that: A clamping groove (807) is provided at the lower part of the front end of one side wall of the clamping block (803), and the limiting block (805) is slidably connected inside the clamping groove (807).

7. An electrical engineering power distribution circuit breaker according to claim 1, characterized in that: The upper and lower adjustment structures (3) are symmetrically arranged with the center point of the outer shell (1) as the axis.

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