Optimized circuit breaker based on environment-friendly gas protection cabinet

Abstract

The utility model relates to the technical field of circuit breaker protection cabinets, and discloses an optimized circuit breaker based on an environment-friendly gas protection cabinet, which comprises a cabinet body and a cabinet door, a mounting plate and a supporting plate are fixedly mounted on the upper side and the lower side in the cabinet body respectively, and a circuit breaker is mounted at the upper end of the supporting plate through a limiting screw. The circuit breakers are evenly arranged on the supporting plate, a locking assembly is arranged between the cabinet body and the cabinet door, a fastening assembly used for fastening the limiting screw is arranged above the supporting plate, the fastening assembly comprises a rack rod and a push plate, the rack rod and the push plate are fixed, the upper end of the limiting nut is rotationally connected with a gear, and the gear is connected with the locking assembly. And the gear is meshed with the rack rod. Vibration generated in the use process of the protection cabinet is utilized to reinforce the limiting nut, the circuit breaker is not loosened in the vibration process, and the installation stability of the circuit breaker is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker protection cabinets, in particular to an optimized circuit breaker for an environmentally friendly gas protection cabinet. Background Art

[0002] A circuit breaker is a switch device that can close, carry and break the current under normal circuit conditions and close, carry and break the current under abnormal circuit conditions within a specified time. It can be used to distribute electric energy, start asynchronous motors infrequently, and protect power lines and motors. Generally, circuit breakers are installed inside protection cabinets.

[0003] Existing protection cabinets mostly use environmentally friendly gases for fully enclosed insulation. Specifically, environmentally friendly insulating gases such as nitrogen or dry air are used to extinguish arcs and insulate the interior of the protection cabinet to ensure electrical safety. When the existing protection cabinet is damaged by impact or other accidents during use, the circuit breaker is prone to shaking and falling or the gas inside the protection cabinet is prone to leaking out, which greatly affects the service life of the circuit breaker. In response to this, we propose an optimized circuit breaker for environmentally friendly gas protection cabinets. Utility Model Content

[0004] The purpose of the utility model is to provide an optimized circuit breaker for an environmentally friendly gas protection cabinet, so as to solve the problem that when the existing protection cabinet is damaged by impact or other accidents during use, the circuit breaker is prone to shaking and falling, or the gas inside the protection cabinet is prone to leaking, which greatly affects the service life of the circuit breaker.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an optimized circuit breaker for an environmentally friendly gas protection cabinet, comprising a cabinet body and a cabinet door, wherein a mounting plate and a support plate are fixedly installed on the upper and lower sides of the cabinet body respectively, and a circuit breaker is installed on the upper end of the support plate through a limit screw, and a limit nut is threadedly connected to the limit screw, and the circuit breaker is evenly arranged on the support plate, and a locking assembly is passed between the cabinet body and the cabinet door, and a fastening assembly for fastening the limit screw is provided above the support plate, and the fastening assembly comprises a rack rod and a push plate, the rack rod and the push plate are fixed, and the upper end of the limit nut is rotatably connected to a gear, and the gear and the rack rod are meshed.

[0006] Preferably, the locking assembly includes a rotating rod, which is movably inserted into the cabinet door, and a lock hole is provided at the outer end of the rotating rod. The cabinet body is connected to a limit seat at the insertion point of the rotating rod by screws, and the limit seat is provided with a plug-in hole for the rotating rod. The limit seat is movably inserted into the left side of the limit seat, and a first spring is movably sleeved on the limit rod. A limit block is provided at the end of the limit rod inserted into the limit seat.

[0007] Preferably, push plates are fixedly mounted on the outer ends of adjacent rack rods, and opposite surfaces of the push plates are provided with insertion rods, and second springs are movably sleeved on the insertion rods, and the support plate is arranged between adjacent second springs.

[0008] Preferably, the push plates are in contact with the inner side surface of the cabinet, and adjacent push plates are parallel to each other.

[0009] Preferably, electric blinds and heating plates are provided on the upper and lower sides of the mounting plate respectively.

[0010] Preferably, a second electrical contact piece is provided on the inner side of the limiting seat, and a first electrical contact piece is provided on the outer end surface of the rotating rod, and the first electrical contact piece and the second electrical contact piece are electrically connected.

[0011] Preferably, the first electrical contact piece, the second electrical contact piece, the heating plate and the electric venetian blind are all electrically connected to the controller.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This optimized circuit breaker based on environmental protection gas protection cabinet has a reinforcement component arranged inside the protection cabinet. When the protection cabinet shakes, the second spring is compressed by the fastening component arranged inside the protection cabinet to alleviate the left and right vibrations of the circuit breaker caused by the cabinet. At the same time, the limit nut can be reinforced and rotated through the meshing action of the rack rod and the gear, effectively avoiding the loosening of the limit nut caused by shaking; and the anti-slip grooves arranged on the push plate can increase the contact friction between the push plate and the cabinet, thereby effectively reducing the influence of the front and rear vibrations of the protection cabinet on the circuit breaker, further ensuring the safety and stability of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the top-sectional structure of the utility model;

[0016] Figure 3 For the utility model Figure 2 An enlarged schematic diagram of M;

[0017] Figure 4 This is a schematic diagram of the protective cabinet of the utility model in the closed door state;

[0018] Figure 5 This is a schematic diagram of the protective cabinet of the utility model in an open door state;

[0019] Figure 6 For the utility model Figure 4An enlarged schematic diagram of location N;

[0020] Figure 7 This is a schematic diagram of the rotating rod structure of the utility model;

[0021] Figure 8 This is a schematic diagram of the structure of the limit rod and the limit block of the utility model.

[0022] In the figure: 1. cabinet body; 2. cabinet door; 3. electric venetian blinds; 4. mounting plate; 5. heating plate; 6. limit nut; 7. locking assembly; 71. rotating rod; 72. lock hole; 73. limit seat; 74. plug-in hole; 75. limit block; 76. limit rod; 77. first spring; 78. first electrical contact piece; 79. second electrical contact piece; 8. fastening assembly; 81. rack rod; 82. limit screw; 83. gear; 84. push plate; 85. second spring; 9. support plate; 90. circuit breaker. DETAILED DESCRIPTION

[0023] 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.

[0024] Example: See Figure 1-8 The utility model provides a technical solution: an optimized circuit breaker for an environmentally friendly gas protection cabinet, which is mainly aimed at improving the problem that when the existing protection cabinet is damaged by impact or other accidents during use, the circuit breaker is prone to shake and fall, or the gas inside the protection cabinet is prone to leak out, which greatly affects the service life of the circuit breaker. The specific scheme is as follows: It includes a cabinet 1 and a cabinet door 2, and the cabinet door 2 is hinged to the front side of the cabinet 1. A mounting plate 4 and a support plate 9 are fixedly installed on the upper and lower sides of the cabinet 1, respectively. It is worth mentioning that the support plate 9 is slidably installed on the rear side of the cabinet 1, and a slide groove for the support plate 9 to slide is provided on the rear side of the cabinet 1.

[0025] See also Figure 1 and Figure 2 , an electric blind 3 and a heating plate 5 are respectively provided on the upper and lower sides of the mounting plate 4. The electric blind 3 is a leaf curtain type, which can ventilate the cabinet 1 and the outside. The heating plate 5 is the heating plate 5 disclosed in the application number: CN202210133200.9. A circuit breaker 90 is installed on the upper end of the support plate 9 through a limit screw 82, and a limit nut 6 is threadedly connected to the limit screw 82, and the circuit breaker 90 is evenly arranged on the support plate 9.

[0026] See also Figure 2 , Figure 4 and Figure 5 The cabinet body 1 and the cabinet door 2 are connected by a locking assembly 7, and the locking assembly 7 can control the opening and closing of the cabinet door 2 and the cabinet body 1. Specifically, the locking assembly 7 includes a rotating rod 71, which is movably plugged into the cabinet door 2. A lock hole 72 is provided at the outer end of the rotating rod 71, and the lock hole 72 can facilitate the operation of the rotating rod 71 to rotate. A limit seat 73 is connected to the cabinet body 1 at the plug-in position of the rotating rod 71 by screws, and a plug-in hole 74 for plugging the rotating rod 71 is provided on the limit seat 73. A limit rod 76 is movably plugged into the left side of the limit seat 73, and a first spring 77 is movably sleeved on the limit rod 76. A limit block 75 is provided at the end of the limit rod 76 inserted into the limit seat 73.

[0027] Further, such as Figure 2 and Figure 6 A second electrical contact piece 79 is provided on the inner side of the limit seat 73, and a first electrical contact piece 78 is provided on the outer end surface of the rotating rod 71, and the first electrical contact piece 78 and the second electrical contact piece 79 are electrically connected. The first electrical contact piece 78, the second electrical contact piece 79, the heating plate 5 and the electric blinds 3 are all electrically connected to the controller. After the cabinet door 2 and the cabinet body 1 are closed by the locking assembly 7, at this time, the first electrical contact piece 78 and the second electrical contact piece 79 are in contact, so that the circuit can be connected, and the heating plate 5 or the electric blinds 3 can be opened as needed, so that the circuit breaker and other electrical equipment inside the protection cabinet can be heated or heat-dissipated.

[0028] See also Figure 1 , Figure 2 and Figure 3A fastening assembly 8 for fastening the limit screw 82 is provided above the support plate 9. The fastening assembly 8 includes a rack rod 81 and a push plate 84. Anti-skid patterns are provided on the opposite outer sides of the push plate 84. The anti-skid patterns can increase the contact friction between the push plate 84 and the cabinet 1. The rack rod 81 and the push plate 84 are fixed. The push plates 84 are fixedly installed on the outer ends of adjacent rack rods 81. The opposite surfaces of the push plates 84 are provided with plug rods. The second springs 85 are movably sleeved on the plug rods. The support plate 9 is provided between adjacent second springs 85. The push plates 84 are in contact with the inner side of the cabinet 1, and the adjacent push plates 84 are parallel to each other. The upper end of the limit nut 6 is rotatably connected with a gear 83, and the gear 83 is meshed with the rack rod 81. When the protection cabinet shakes, at this time, the second spring 85 is compressed by the fastening assembly 8 arranged inside the protection cabinet to alleviate the left and right side vibrations of the circuit breaker 90 caused by the cabinet body 1. At the same time, the limit nut 6 can be reinforced and rotated through the meshing action of the rack rod 81 and the gear 83, thereby effectively avoiding the loosening of the limit nut 6 caused by shaking; and the anti-slip grooves arranged on the push plate 84 can increase the contact friction between the push plate 84 and the cabinet body 1, thereby effectively reducing the influence of the front and rear vibrations of the protection cabinet on the circuit breaker, further ensuring the safety and stability of the circuit breaker and preventing the circuit breaker from loosening during use.

[0029] Working principle: This optimized circuit breaker for environmental protection gas protection cabinet, when the cabinet door 2 is opened, the first electrical contact piece 78 and the second electrical contact piece 79 are separated, at this time, the circuit is disconnected, and the corresponding heating plate 5 and electric blinds 3 cannot be started; after the cabinet door 2 is closed, the first electrical contact piece 78 and the second electrical contact piece 79 are in contact, at this time, the circuit is connected, and the heating plate 5 or the electric blinds 3 can be opened as needed through the controller, so that the circuit breaker and other electrical equipment inside the protection cabinet can be heated or cooled; when the protection cabinet is shaken, At this time, by means of the fastening assembly 8 arranged inside the protection cabinet, the second spring 85 is compressed to alleviate the left and right side vibrations of the circuit breaker 90 caused by the cabinet body 1. At the same time, through the meshing action of the rack rod 81 and the gear 83, the limit nut 6 can be reinforced and rotated, and the loosening of the limit nut 6 caused by shaking can be effectively avoided; and the anti-slip grooves arranged on the push plate 84 can increase the contact friction between the push plate 84 and the cabinet body 1, thereby effectively reducing the influence of the front and rear vibrations of the protection cabinet on the circuit breaker, and further ensuring the safety and stability of the circuit breaker.

[0030] 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. An optimized circuit breaker for an environmentally friendly gas protection cabinet, comprising a cabinet body (1) and a cabinet door (2), characterized in that: The cabinet body (1) is provided with a mounting plate (4) and a support plate (9) fixedly mounted on the upper and lower sides thereof, respectively; a circuit breaker (90) is mounted on the upper end of the support plate (9) via a limit screw (82); a limit nut (6) is threadedly connected to the limit screw (82); the circuit breakers (90) are evenly arranged on the support plate (9); a locking assembly (7) is provided between the cabinet body (1) and the cabinet door (2); a fastening assembly (8) for fastening the limit screw (82) is provided above the support plate (9); the fastening assembly (8) comprises a rack rod (81) and a push plate (84); the rack rod (81) and the push plate (84) are fixed; a gear (83) is rotatably connected to the upper end of the limit nut (6); the gear (83) and the rack rod (81) are meshingly connected.

2. The optimized circuit breaker for an environmentally friendly gas protection cabinet according to claim 1 is characterized in that: The locking assembly (7) comprises a rotating rod (71), the rotating rod (71) being movably plugged into the cabinet door (2), a locking hole (72) being provided at the outer end of the rotating rod (71), a limiting seat (73) being connected to the plugging position of the rotating rod (71) on the cabinet body (1) by screws, a plugging hole (74) being provided on the limiting seat (73) for plugging the rotating rod (71), a limiting rod (76) being movably plugged into the left side of the limiting seat (73), a first spring (77) being movably sleeved on the limiting rod (76), and a limiting block (75) being provided at the end of the limiting rod (76) inserted into the limiting seat (73).

3. The optimized circuit breaker for environmental protection gas protection cabinet according to claim 1 is characterized in that: Push plates (84) are fixedly mounted on the outer ends of adjacent rack rods (81), and opposite surfaces of the push plates (84) are provided with insertion rods, on which second springs (85) are movably sleeved, and the support plate (9) is arranged between adjacent second springs (85).

4. The optimized circuit breaker for environmentally friendly gas protection cabinet according to claim 3 is characterized in that: The push plates (84) are in contact with the inner side surface of the cabinet (1), and adjacent push plates (84) are parallel to each other.

5. The optimized circuit breaker for environmentally friendly gas protection cabinet according to claim 2 is characterized in that: The upper and lower sides of the mounting plate (4) are respectively provided with an electric blind (3) and a heating plate (5).

6. The optimized circuit breaker for environmentally friendly gas protection cabinet according to claim 5 is characterized in that: A second electrical contact piece (79) is provided on the inner side of the limit seat (73), and a first electrical contact piece (78) is provided on the outer end surface of the rotating rod (71); the first electrical contact piece (78) and the second electrical contact piece (79) are electrically connected.

7. The optimized circuit breaker for environmentally friendly gas protection cabinet according to claim 6 is characterized in that: The first electrical contact piece (78), the second electrical contact piece (79), the heating plate (5) and the electric blind (3) are all electrically connected to the controller.

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