Miniature circuit breaker capable of preventing wire from loosening
By designing the combination of the push structure and screws in a small circuit breaker, the problem that traditional circuit breakers are difficult to prevent the wire from being loose is solved, and the stable fixation of the wire is achieved, ensuring the normal operation of the circuit breaker and the convenience of users to use.
Patent Information
- Application Number
- CN202421799731.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Traditional circuit breakers are difficult to prevent wires from loosening, causing circuits to be disconnected, unable to control current, and even causing damage to the equipment.
A small circuit breaker is designed, using a push-up structure and screws to ensure that the wire is clamped and fixed to prevent loosening through the combination of the movable cavity, connecting rod, press plate and fastening screw.
Effectively prevent the wire from loosening, ensure the normal operation of the circuit breaker, avoid equipment damage, and provide a convenient user experience.
Smart Images
Figure CN222883460U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit breakers, in particular to a small circuit breaker capable of preventing a wire from loosening. Background Art
[0002] A circuit breaker is a switching device that can close, carry and interrupt the current under normal circuit conditions and can close, carry and interrupt the current under abnormal circuit conditions within a specified time. Traditional circuit breakers are difficult to prevent loose wires in actual use. Once the wires connected to the circuit breaker are loose, the circuit will be disconnected and the circuit breaker will not be able to control the closing of the current, causing the circuit breaker to fail to play its due role and even damage the main equipment, resulting in great losses and affecting the normal operation of the equipment.
[0003] In view of the above problems, the present invention makes improvements. Summary of the invention
[0004] The utility model provides a small circuit breaker for preventing wires from loosening, which solves the above problems existing in the use process of the prior art.
[0005] The technical solution of the utility model is achieved as follows: a small circuit breaker for preventing loosening of wires, comprising a circuit breaker body, three screw mounting holes are provided on both sides of the top of the circuit breaker body, a movable cavity is provided at the bottom of the inner cavity of the screw mounting holes, through holes distributed on the outside of the movable cavity are provided at the four corners of the bottom of the inner cavity of the screw mounting holes, connecting rods are slidably installed inside the through holes, movable plates sliding inside the screw mounting holes are fixedly connected to the top ends of the four connecting rods, pressing plates sliding inside the movable cavity are fixedly connected to the bottom ends of the four connecting rods, extension plates located outside the circuit breaker body are fixedly connected to one side of the three movable plates, a push-up assembly is embeddedly installed at the bottom of the inner cavity of the movable cavity, and a fastening screw matching the connecting rod and the pressing plate is threadedly installed in the inner cavity of the screw mounting holes.
[0006] The utility model is a small circuit breaker for preventing wires from loosening, further comprising: a mounting groove for installing a push-up assembly is provided at the bottom of the inner cavity of the movable cavity, and a plurality of wire jacks communicating with the mounting grooves are provided on both sides of the circuit breaker body.
[0007] The utility model is a miniature circuit breaker for preventing wires from loosening, further comprising: notches located above the wire insertion holes are provided on both sides of the circuit breaker body, and an adapter port communicating with the notch is provided on one side of the inner cavity of the fastening screw.
[0008] The utility model provides a small circuit breaker for preventing a wire from being loosened, further comprising: a switch wrench is movably mounted on the top of the circuit breaker body, and an opening is provided at the bottom of the circuit breaker body.
[0009] The utility model is a small circuit breaker for preventing wires from loosening as described above, further comprising: an upward push assembly consisting of a spring and a screw base, the screw base being slidably installed in an assembly groove, and the two ends of the spring being fixedly connected to the screw base and the inner wall of the assembly groove respectively.
[0010] The utility model provides a small circuit breaker for preventing a wire from being loosened, further comprising: a groove is provided on the top of the screw base, and the inner diameter of the groove is the same as that of the wire insertion hole.
[0011] The utility model provides a small circuit breaker for preventing a wire from loosening as described above, further comprising: an adapting groove communicating with the groove is provided on the top of the screw base, and the adapting groove is adapted to the fastening screw.
[0012] In summary, the beneficial effects of the present invention are:
[0013] 1. The utility model adopts a structural design that can prevent the wire from loosening. After the wire is inserted into the circuit breaker, the corresponding push-up structure cooperates with the screw to clamp and fix the wire to prevent the wire from loosening. The push-up structure can prevent the screw from loosening, so that the screw and the push-up structure always clamp the wire to further prevent the wire from loosening, thereby ensuring the normal operation of the circuit breaker and providing convenience for the user's work.
[0014] 2. The utility model provides an assembly groove and a wire insertion hole, and the assembly groove and the wire insertion hole are connected, so that the screw base can be moved into the wire insertion hole, and the wire can also smoothly pass through the wire insertion hole into the groove, ensuring the smooth progress of the wire installation work and providing convenience for the user's work.
[0015] 3. The utility model provides a notch and an adapter port so that the extension plate moves in the adapter port when it is working, thereby ensuring that the extension plate can work smoothly. The notch provides sufficient space for the extension plate to work, ensuring that the extension plate can move normally and smoothly, providing convenience for the user's work.
[0016] 4. The utility model provides a switch wrench and an opening. The switch wrench is used to control the opening and closing of the circuit breaker. The user can control whether the circuit breaker is working by the switch wrench, which provides convenience for the user's work.
[0017] 5. The utility model is provided with a push-up component. During installation, the bottom end of the fastening screw will extend into the adapter slot, and the wire will be pressed into the adapter slot until the fastening screw is tightened to a fixed position. During this process, the fastening screw will also press down the screw base, and the screw base will move down in the assembly slot, while compressing the spring. In this way, the spring will rebound, thereby ensuring that the wire is tightly clamped by the fastening screw and the screw base, ensuring the stability of the wire after installation, and providing convenience for the user's work.
[0018] 6. The utility model sets a groove whose inner diameter is the same as that of the wire insertion hole. When the wire is inserted from the wire insertion hole, it can smoothly enter the groove to limit the wire and also be used to place the wire, thereby providing convenience for the user's work.
[0019] 7. The utility model provides an adapter slot for the end of the fastening screw to extend into, thereby ensuring that the fastening screw cooperates with the screw base to clamp and fix the wire, preventing the wire from loosening, and providing convenience for the user's work. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the utility model;
[0023] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the circuit breaker body;
[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the screw base;
[0025] Figure 5 It is a schematic diagram of the three-dimensional structural assembly of the pressure plate and the movable plate.
[0026] In the figure: 1. circuit breaker body, 2. screw mounting hole, 3. movable cavity, 4. through hole, 5. connecting rod, 6. pressure plate, 7. movable plate, 8. extension plate, 9. fastening screw, 10. assembly groove, 11. spring, 12. screw base, 13. adapter groove, 14. wire jack, 15. notch, 16. adapter port, 17. switch wrench, 18. opening, 19. groove. DETAILED DESCRIPTION
[0027] The following will be combined with the attached embodiment of the utility model Figure 1-5 , 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 them. 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. Example
[0028] A small circuit breaker for preventing a wire from loosening comprises a circuit breaker body 1, three screw mounting holes 2 are provided on both sides of the top of the circuit breaker body 1, a movable cavity 3 is provided at the bottom of the inner cavity of the screw mounting hole 2, through holes 4 distributed on the outside of the movable cavity 3 are provided at four corners of the bottom of the inner cavity of the screw mounting hole 2, connecting rods 5 are slidably installed inside the through holes 4, the tops of the four connecting rods 5 are fixedly connected with movable plates 7 sliding inside the screw mounting holes 2, the bottoms of the four connecting rods 5 are fixedly connected with pressure plates 6 sliding inside the movable cavity 3, one side of the three movable plates 7 is fixedly connected with an extension plate 8 located on the outside of the circuit breaker body 1, a push-up assembly is embedded at the bottom of the inner cavity of the movable cavity 3, and a fastening screw 9 adapted to the connecting rod 5 and the pressure plate 6 is threadedly installed in the inner cavity of the screw mounting hole 2.
[0029] The specific usage process is as follows: when installing the wire, first insert the wire into the corresponding wire insertion hole 14 until the end of the wire extends into the groove 19, and then press down the extension plate 8. As the extension plate 8 moves downward, it will drive the movable plate 7 to move downward in the screw mounting hole 2, and the movable plate 7 will drive the corresponding four connecting rods 5 to move downward in the corresponding through holes 4. The four connecting rods 5 will drive the pressing plate 6 to move downward in the movable cavity 3, and then the pressing plate 6 will pre-tighten the wire first, and can pre-position the wire in the groove 19, so that the wire can be prevented from slipping out of the inner cavity of the wire insertion hole 14 before being tightened, and it also provides convenience and assistance for the user to install the fastening screw 9 later. After that, the user inserts the fastening screw 9 into the screw mounting hole 2, and passes through the movable plate 7 and the movable plate 7 Enter into the movable cavity 3 until the end of the fastening screw 9 contacts the wire, then tighten the fastening screw 9, because the fastening screw 9 is installed on the circuit breaker body 1 by threaded connection, so as the fastening screw 9 is tightened and rotated, the end of the fastening screw 9 will move down into the assembly groove 10, and then enter into the adapter groove 13, that is, extend into the screw base 12, and press the wire into the adapter groove 13 until the fastening screw 9 is tightened and fixed in position. In this process, the fastening screw 9 will also press down the screw base 12, and the screw base 12 moves down in the assembly groove 10, and compresses the spring 11 at the same time, so that the spring 11 will produce a rebound, thereby ensuring that the wire is tightly clamped by the fastening screw 9 and the screw base 12, ensuring the installation of the wire The stability after the operation is improved, which provides convenience for the user's work and use. Finally, the wire is pressed tightly under the action of the fastening screw 9, the screw base 12 and the pressure plate 6, which can prevent the wire from loosening in the later use and ensure the normal operation of the circuit breaker. Under the action of the fastening screw 9, the pressure plate 6 will also be tightly pressed on the wire, and the spring 11 and the screw base 12 will also generate a reverse thrust on the fastening screw 9, so that the fastening screw 9 is not easy to loosen, further preventing the wire from loosening. In this way, under the joint action of the pressure plate 6, the fastening screw 9, the spring 11 and the screw base 12, it is ensured that the wire can be firmly fixed in the circuit breaker body 1, and the circuit breaker can work normally. Among them, the assembly slot 10 and the wire jack 14 are connected, so The screw base 12 can be moved into the wire insertion hole 14, and the wire can also pass through the wire insertion hole 14 smoothly into the groove 19, ensuring the smooth progress of the wire installation work and providing convenience for the user's work and use. When the extension plate 8 is active, it will move in the adapter port 16, thereby ensuring that the extension plate 8 can work smoothly. The notch 15 provides sufficient space for the extension plate 8 to ensure that the extension plate 8 can move normally and smoothly, providing convenience for the user's work and use. The inner diameter of the groove 19 is the same as the wire insertion hole 14. When the wire is inserted from the wire insertion hole 14, it can smoothly enter the groove 19 to limit the wire and is also used to place the wire, thereby providing convenience for the user's work and use.
[0030] Therefore, a structural design that can prevent the wire from loosening is adopted. After the wire is inserted into the circuit breaker, the corresponding push-up structure cooperates with the screw to clamp and fix the wire to prevent the wire from loosening. The push-up structure can prevent the screw from loosening, so that the screw and the push-up structure always clamp the wire to further prevent the wire from loosening, thereby ensuring the normal operation of the circuit breaker and providing convenience for the user's work.
[0031] An assembly groove 10 for installing a push-up assembly is provided at the bottom of the inner cavity of the movable cavity 3 , and a plurality of wire insertion holes 14 communicating with the assembly groove 10 are provided on both sides of the circuit breaker body 1 .
[0032] Specifically, the assembly groove 10 and the wire insertion hole 14 are connected, so that the screw base 12 can be moved into the wire insertion hole 14, and the wire can also pass through the wire insertion hole 14 smoothly into the groove 19, ensuring the smooth progress of the wire installation work and providing convenience for the user's work.
[0033] Both sides of the circuit breaker body 1 are provided with notches 15 located above the wire insertion hole 14 , and one side of the inner cavity of the fastening screw 9 is provided with an adapter port 16 communicating with the notch 15 .
[0034] Specifically, the notch 15 and the adapter port 16 are set so that when the extension plate 8 is working, the notch 15 will move in the adapter port 16, thereby ensuring that the extension plate 8 can work smoothly. The notch 15 provides sufficient space for the extension plate 8 to work, ensuring that the extension plate 8 can move normally and smoothly, providing convenience for the user's work.
[0035] A switch wrench 17 is movably mounted on the top of the circuit breaker body 1 , and an opening 18 is provided at the bottom of the circuit breaker body 1 .
[0036] Specifically, the switch wrench 17 and the opening 18 are arranged such that the switch wrench 17 is used to control the opening and closing of the circuit breaker. The user can control whether the circuit breaker is working by the switch wrench 17, which provides convenience for the user's work.
[0037] The push-up assembly is composed of a spring 11 and a screw base 12 . The screw base 12 is slidably installed in the assembly groove 10 . The two ends of the spring 11 are fixedly connected to the screw base 12 and the inner wall of the assembly groove 10 , respectively.
[0038] Specifically, the push-up component is set up. During installation, the bottom end of the fastening screw 9 will extend into the adapter slot 13, and the wire will be pressed into the adapter slot 13 until the fastening screw 9 is tightened and fixed in position. During this process, the fastening screw 9 will also press down the screw base 12, and the screw base 12 will move down in the assembly slot 10, while compressing the spring 11. In this way, the spring 11 will rebound, thereby ensuring that the wire is tightly clamped by the fastening screw 9 and the screw base 12, ensuring the stability of the wire after installation, and providing convenience for the user's work.
[0039] A groove 19 is formed on the top of the screw base 12 , and the inner diameter of the groove 19 is the same as that of the wire insertion hole 14 .
[0040] Specifically, the groove 19 is configured such that the inner diameter of the groove 19 is the same as that of the wire insertion hole 14. When the wire is inserted into the wire insertion hole 14, it can smoothly enter the groove 19 to limit the position of the wire and also be used to place the wire, thereby providing convenience for the user's work.
[0041] The top of the screw base 12 is provided with an adapting groove 13 which is connected with the groove 19 , and the adapting groove 13 is adapted to the fastening screw 9 .
[0042] Specifically, the adapter groove 13 is provided for the end of the fastening screw 9 to extend therein, thereby ensuring that the fastening screw 9 cooperates with the screw base 12 to clamp and fix the wire, preventing the wire from loosening, and providing convenience for the user's work.
[0043] It should be noted that the functions to be implemented by each hardware in the utility model are supported by a large number of mature technologies and belong to the existing technology. The essence of the utility model is to optimize the combination of existing hardware and its connection method for specific application scenarios to meet the adaptation needs in specific application scenarios and solve the problems raised in the background technology (not involving improvements to the software inside the hardware).
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. A small circuit breaker for preventing a wire from loosening, comprising a circuit breaker body (1), characterized in that: Three screw mounting holes (2) are provided on both sides of the top of the circuit breaker body (1); a movable cavity (3) is provided at the bottom of the inner cavity of the screw mounting hole (2); through holes (4) are provided at four corners of the inner cavity of the screw mounting hole (2) and are distributed outside the movable cavity (3); connecting rods (5) are slidably installed inside the through holes (4); the top ends of the four connecting rods (5) are fixedly connected to movable plates (7) that slide inside the screw mounting holes (2); the bottoms of the four connecting rods (5) are fixedly connected to pressure plates (6) that slide inside the movable cavity (3); one side of the three movable plates (7) is fixedly connected to an extension plate (8) located outside the circuit breaker body (1); a push-up assembly is embedded at the bottom of the inner cavity of the movable cavity (3); and a fastening screw (9) that matches the connecting rod (5) and the pressure plate (6) is threadedly installed in the inner cavity of the screw mounting hole (2).
2. A miniature circuit breaker for preventing wires from loosening according to claim 1, characterized in that: An assembly groove (10) for installing a push-up assembly is provided at the bottom of the inner cavity of the movable cavity (3), and a plurality of wire insertion holes (14) in communication with the assembly groove (10) are provided on both sides of the circuit breaker body (1).
3. A miniature circuit breaker for preventing wires from loosening according to claim 2, characterized in that: Both sides of the circuit breaker body (1) are provided with notches (15) located above the wire insertion hole (14), and one side of the inner cavity of the fastening screw (9) is provided with an adapter opening (16) connected to the notch (15).
4. A miniature circuit breaker for preventing wires from loosening according to claim 3, characterized in that: A switch wrench (17) is movably mounted in an embedded manner on the top of the circuit breaker body (1), and an opening (18) is provided at the bottom of the circuit breaker body (1).
5. A miniature circuit breaker for preventing wires from loosening according to claim 4, characterized in that: The push-up assembly is composed of a spring (11) and a screw base (12), wherein the screw base (12) is slidably mounted in the assembly groove (10), and the two ends of the spring (11) are respectively fixedly connected to the screw base (12) and the inner wall of the assembly groove (10).
6. A miniature circuit breaker for preventing wires from loosening according to claim 5, characterized in that: A groove (19) is provided on the top of the screw base (12), and the inner diameter of the groove (19) is the same as that of the wire insertion hole (14).
7. A miniature circuit breaker for preventing wires from loosening according to claim 6, characterized in that: The top of the screw base (12) is provided with an adapting groove (13) which is in communication with the groove (19), and the adapting groove (13) is adapted to the fastening screw (9).