Mounting structure of low-voltage circuit breaker

Abstract

The utility model relates to an installation structure of a low-voltage circuit breaker, which comprises a low-voltage circuit breaker body, a shell is arranged outside the low-voltage circuit breaker body, an installation structure for fixing the low-voltage circuit breaker body is arranged in the shell, and a shielding structure for shielding the low-voltage circuit breaker body is arranged above the shell. The mounting structure comprises a bearing plate, a spring, a guide rod and a clamping plate, the bearing plate is fixedly mounted at the top ends of the spring and the guide rod, and a positioning rod is fixedly mounted on the lower surface of the low-voltage circuit breaker body. According to the installation structure of the low-voltage circuit breaker, the low-voltage circuit breaker body is placed in the shell, then the low-voltage circuit breaker body is pressed down, so that the pressure bearing plate moves downwards to extrude the spring, then the two clamping plates are turned over, then pressing of the low-voltage circuit breaker body is loosened, at the moment, the connecting plate tightly abuts against the clamping plates, and installation of the low-voltage circuit breaker body can be achieved; and the advantages of convenient disassembly and assembly and the like are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to an installation structure of a low-voltage circuit breaker. Background Art

[0002] At present, the low-voltage circuit breakers used in the power field only have the functions of turning off and connecting the power supply, and tripping and cutting off the power supply when a load fails. A circuit breaker refers to a switching device that can close, carry and disconnect the current under normal circuit conditions and can close, carry and disconnect the current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The boundary between high and low voltage is relatively vague. Generally, those above three thousand volts are called high-voltage electrical appliances. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. When they have serious overloads or short circuits and undervoltage faults, they can automatically cut off the circuit. Its function is equivalent to a combination of a fuse-type switch and an over- and under-temperature relay.

[0003] In the process of installing common low-voltage circuit breakers, the fixing devices of common low-voltage circuit breakers are not easy to install, and the staff often need to spend more time and energy to install the low-voltage circuit breakers, which increases the workload of the staff. For example, when installing a traditional low-voltage circuit breaker, it is necessary to fix the circuit breaker with multiple screws. When repairing, it is necessary to remove the multiple screws one by one, which is very troublesome and seriously affects the disassembly and assembly efficiency of the low-voltage circuit breaker. Therefore, a low-voltage circuit breaker installation structure is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an installation structure for a low-voltage circuit breaker, which has the advantages of easy assembly and disassembly, and solves the problem that when traditional low-voltage circuit breakers are installed, the circuit breaker needs to be fixed with multiple screws, and when repairing, the multiple screws need to be removed one by one, which is very troublesome.

[0005] To achieve the above object, the utility model provides the following technical solutions: a low-voltage circuit breaker installation structure, comprising a low-voltage circuit breaker body, a shell is arranged outside the low-voltage circuit breaker body, a mounting structure for fixing the low-voltage circuit breaker body is arranged inside the shell, and a shielding structure for shielding the low-voltage circuit breaker body is arranged above the shell;

[0006] The mounting structure comprises a pressure plate, a spring, a guide rod and a clamping plate, wherein the pressure plate is fixedly mounted on the top of the spring and the guide rod, a positioning rod is fixedly mounted on the lower surface of the low-voltage circuit breaker body, a slot adapted to the positioning rod is provided inside the pressure plate, a connecting plate is mounted on the side wall of the low-voltage circuit breaker body, two symmetrically distributed mounting seats are mounted on the side wall of the housing, and the clamping plate is rotatably mounted between the two mounting seats;

[0007] The shielding structure is composed of a protective cover, a first fixing plate and a second fixing plate. The number of the first fixing plate and the number of the second fixing plates are both two, and the two first fixing plates and the two second fixing plates are symmetrically arranged.

[0008] Furthermore, the spring surrounds the outside of the guide rod, and the spring and the guide rod are fixedly mounted on the inner bottom wall of the shell.

[0009] Furthermore, the guide rod is a telescopic rod, four corners of the side wall of the shell are welded with mounting blocks, and mounting holes are opened inside the four mounting blocks.

[0010] Furthermore, a limiting assembly for limiting the pressure plate is disposed inside the shell, and the number of the limiting assemblies is two, and the two limiting assemblies are symmetrically disposed.

[0011] Furthermore, the interior of the shell is hollow, the outer shape of the card plate is L-shaped, and an insertion rod that is plugged into the interior of the shell is installed inside the card plate.

[0012] Furthermore, the two first fixing plates are fixedly installed on the left and right outer walls of the shell, and the two second fixing plates are fixedly installed on the left and right outer walls of the protective cover. Through holes are opened inside the first fixing plates and the second fixing plates.

[0013] Furthermore, a heat dissipation hole connected to the outside is opened inside the protective cover, and a wiring hole is opened inside the shell.

[0014] Compared with the prior art, the utility model provides an installation structure of a low-voltage circuit breaker, which has the following beneficial effects:

[0015] 1. The installation structure of the low-voltage circuit breaker is as follows: the low-voltage circuit breaker body is placed into the shell, and then the low-voltage circuit breaker body is pressed down to move the pressure plate downward to squeeze the spring, and then the two clamping plates are flipped, and then the pressure on the low-voltage circuit breaker body is released. At this time, the connecting plate is tightly against the clamping plate, and the installation of the low-voltage circuit breaker body can be realized, which has the advantages of easy disassembly and assembly, and solves the problem that when the traditional low-voltage circuit breaker is installed, the circuit breaker needs to be fixed with multiple screws, and when it is repaired, the multiple screws need to be removed one by one, which is very troublesome.

[0016] 2. The installation structure of the low-voltage circuit breaker realizes shielding of the low-voltage circuit breaker body by installing a shielding cover to prevent accidental contact with the low-voltage circuit breaker body. The linear displacement of the pressure plate is ensured by the guidance of the limit assembly, the extrusion of the spring is improved, and the installation of the low-voltage circuit breaker body is strengthened. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 2 It is a structural stereogram of the housing of the utility model;

[0019] Figure 3 It is a top view of the structure of the utility model.

[0020] In the figure: 1. low-voltage circuit breaker body; 2. shell; 3. pressure plate; 4. spring; 5. guide rod; 6. mounting seat; 7. clamping plate; 8. plug rod; 9. positioning rod; 10. slot; 11. connecting plate; 12. limit assembly; 13. mounting block; 14. mounting hole; 15. protective cover; 16. first fixing plate; 17. second fixing plate. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-3 A low-voltage circuit breaker installation structure includes a low-voltage circuit breaker body 1, a shell 2 is arranged outside the low-voltage circuit breaker body 1, and a wiring hole is opened inside the shell 2. Four corners of the side wall of the shell 2 are welded with mounting blocks 13, and the insides of the four mounting blocks 13 are each provided with mounting holes 14, and locking bolts can be installed in the mounting holes 14 to fix the shell 2.

[0023] In this embodiment, a mounting structure for fixing the low-voltage circuit breaker body 1 is provided in the shell 2, and the mounting structure includes a pressure plate 3, a spring 4, a guide rod 5 and a clamping plate 7. The pressure plate 3 is fixedly installed on the top of the spring 4 and the guide rod 5. A positioning rod 9 is fixedly installed on the lower surface of the low-voltage circuit breaker body 1. A slot 10 adapted to the positioning rod 9 is opened inside the pressure plate 3. A connecting plate 11 is installed on the side wall of the low-voltage circuit breaker body 1. Two symmetrically distributed mounting seats 6 are installed on the side wall of the shell 2, and the clamping plate 7 is rotatably installed between the two mounting seats 6.

[0024] It should be noted that the spring 4 surrounds the outside of the guide rod 5, and the spring 4 and the guide rod 5 are fixedly mounted on the inner bottom wall of the housing 2. The guide rod 5 is a telescopic rod, so that the spring 4 can be fully deformed. The interior of the housing 2 is hollow, and the shape of the card plate 7 is L-shaped. The card plate 7 is installed with an insertion rod 8 that is plugged into the interior of the housing 2. The number of springs 4 and guide rods 5 is multiple.

[0025] Among them, the housing 2 is provided with a limit assembly 12 for limiting the pressure plate 3. The number of limit assemblies 12 is two, and the two limit assemblies 12 are symmetrically arranged. The limit assembly 12 is composed of two limit platforms and a limit rod, and the limit rod is fixedly installed between the two limit platforms. The limit rod runs through the interior of the pressure plate 3. The number of limit assemblies 12 is two, and the two limit assemblies 12 are symmetrically arranged, and the four limit platforms are fixedly installed on the inner walls on the left and right sides of the housing 2.

[0026] When in use, the limiting assembly 12 is used to guide the pressure plate 3 to ensure linear displacement, thereby increasing the squeezing of the spring 4 and strengthening the installation of the low-voltage circuit breaker body 1 .

[0027] In this embodiment, a shielding structure for shielding the low-voltage circuit breaker body 1 is arranged above the shell 2; the shielding structure is composed of a protective cover 15 and a first fixed plate 16 and a second fixed plate 17, the number of the first fixed plate 16 and the second fixed plate 17 are both two, and the two first fixed plates 16 and the two second fixed plates 17 are symmetrically arranged.

[0028] Among them, two first fixing plates 16 are fixedly installed on the left and right outer walls of the housing 2, and two second fixing plates 17 are fixedly installed on the left and right outer walls of the protective cover 15. Through holes are provided inside the first fixing plates 16 and the second fixing plates 17. Heat dissipation holes connected to the outside are provided inside the protective cover 15. A dustproof net is installed in the heat dissipation holes. The protective cover 15 is a transparent structure.

[0029] The working principle of the above embodiment is:

[0030] During installation, first place the low-voltage circuit breaker body 1 into the housing 2, connect the positioning rod 9 with the slot 10 to ensure that the low-voltage circuit breaker body 1 is accurately installed, then press down the low-voltage circuit breaker body 1 to move the pressure plate 3 down to squeeze the spring 4, then flip the two card plates 7 to flip them over the two connecting plates 11, and then release the pressure on the low-voltage circuit breaker body 1. At this time, the connecting plate 11 is tightly against the card plate 7 to achieve the preliminary installation of the low-voltage circuit breaker body 1. Finally, insert the plug rod 8 to complete the fixation of the low-voltage circuit breaker body 1 and strengthen the installation effect of the low-voltage circuit breaker body 1. During disassembly, just pull out the plug rod 8, then press down the low-voltage circuit breaker body 1, so that the card plate 7 no longer against the connecting plate 11, and then flip the card plate 7 to complete the disassembly of the low-voltage circuit breaker body 1.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low voltage circuit breaker installation structure, comprising a low voltage circuit breaker body (1), characterized in that: A shell (2) is arranged outside the low-voltage circuit breaker body (1), a mounting structure for fixing the low-voltage circuit breaker body (1) is arranged inside the shell (2), and a shielding structure for shielding the low-voltage circuit breaker body (1) is arranged above the shell (2); The mounting structure comprises a pressure plate (3), a spring (4), a guide rod (5) and a clamping plate (7); the pressure plate (3) is fixedly mounted on the top of the spring (4) and the guide rod (5); a positioning rod (9) is fixedly mounted on the lower surface of the low-voltage circuit breaker body (1); a slot (10) adapted to the positioning rod (9) is provided inside the pressure plate (3); a connecting plate (11) is mounted on the side wall of the low-voltage circuit breaker body (1); two symmetrically distributed mounting seats (6) are mounted on the side wall of the housing (2); and the clamping plate (7) is rotatably mounted between the two mounting seats (6); The shielding structure is composed of a protective cover (15), a first fixing plate (16), and a second fixing plate (17); the number of the first fixing plate (16) and the number of the second fixing plate (17) are both two, and the two first fixing plates (16) and the two second fixing plates (17) are symmetrically arranged.

2. The installation structure of a low voltage circuit breaker according to claim 1, characterized in that: The spring (4) surrounds the outside of the guide rod (5), and the spring (4) and the guide rod (5) are fixedly mounted on the inner bottom wall of the housing (2).

3. The installation structure of a low voltage circuit breaker according to claim 1, characterized in that: The guide rod (5) is a telescopic rod, and mounting blocks (13) are welded to the four corners of the side wall of the shell (2), and mounting holes (14) are provided inside the four mounting blocks (13).

4. The installation structure of a low voltage circuit breaker according to claim 1, characterized in that: A limiting assembly (12) for limiting the position of the pressure plate (3) is arranged inside the shell (2), and the number of the limiting assemblies (12) is two, and the two limiting assemblies (12) are symmetrically arranged.

5. The installation structure of a low voltage circuit breaker according to claim 1, characterized in that: The interior of the shell (2) is hollow, the outer shape of the card plate (7) is L-shaped, and an insertion rod (8) is installed inside the card plate (7) and is plugged into the interior of the shell (2).

6. The installation structure of a low voltage circuit breaker according to claim 1, characterized in that: The two first fixing plates (16) are fixedly mounted on the left and right outer walls of the shell (2), and the two second fixing plates (17) are fixedly mounted on the left and right outer walls of the protective cover (15), and through holes are provided inside the first fixing plates (16) and the second fixing plates (17).

7. The installation structure of a low voltage circuit breaker according to claim 1, characterized in that: The protective cover (15) is provided with a heat dissipation hole communicating with the outside inside, and the housing (2) is provided with a wiring hole inside.

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