Mounting bracket structure matched with circuit breaker

Abstract

The utility model discloses an installation support structure cooperating with a circuit breaker, which comprises a main body frame, an installation support and a circuit breaker main body, the main body frame is installed on the inner wall of an electric cabinet, the circuit breaker main body is installed on one side of the installation support, and the installation support structure is characterized in that four groups of convex blocks are arranged on the main body frame. By designing the convex blocks, the laminating plate and the limiting assembly, the mounting bracket is arranged on one side of the main body frame during mounting, a group of convex blocks penetrate through holes of the laminating plate, and at the moment, a hand extends into the mounting bracket from an opening in the top of the mounting bracket and rotates the two-way screw rod, so that the moving block moves to drive the square inserting rod to move outwards; when the circuit breaker is disassembled, the bidirectional screw rod is reversely rotated to quickly disassemble the mounting bracket, and then the circuit breaker main body and the mounting bracket are disassembled outside the cabinet, so that the problem that the circuit breaker is inconvenient to disassemble and assemble through screws in the prior art is solved by designing convenient and fast movable connection type installation.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker mounting bracket design, in particular to a matching circuit breaker mounting bracket structure. Background Art

[0002] At present, in the field of electric power, the power distribution cabinet plays a very important role, and the circuit breaker is an indispensable and important component in the power distribution cabinet, which can protect the circuit and electrical equipment, and cut off the circuit. When there is a serious overload, short circuit or undervoltage fault in the circuit, the circuit breaker can automatically cut off the circuit, thereby preventing damage to the electrical equipment and preventing greater accidents.

[0003] The applicant has found that existing circuit breakers need to be assembled inside the distribution cabinet with a bracket to stabilize their position, and most of them are fixed with bolts. For example, a circuit breaker mounting bracket disclosed in application number CN201720070978.4 is very common, has a simple structure and is easy to use, and is a universal bracket.

[0004] However, after many uses, it is found that the existing bracket has certain shortcomings. Since the bracket is directly connected to the rack inside the cabinet by bolts, when the circuit breaker needs to be replaced or repaired, the circuit breaker needs to be removed from the mounting bracket. However, due to the limited space in the distribution box, it is inconvenient during the installation and disassembly process. Violent disassembly often occurs, resulting in deformation or damage of the mounting bracket. Therefore, although some conventional elastic or snap-on installations are easy to disassemble and assemble, they have poor stability. Therefore, in view of this, the existing structure and defects are studied and improved, and a mounting bracket structure for a circuit breaker is proposed. Summary of the invention

[0005] The purpose of the utility model is to provide a mounting bracket structure for a circuit breaker to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a main frame, a mounting bracket and a circuit breaker body, the main frame is installed on the inner wall of the distribution cabinet, the circuit breaker body is installed on one side of the mounting bracket, and is characterized in that the main frame is provided with four groups of protrusions, each group of the protrusions is provided with two, and bonding plates are fixed on both sides of the mounting bracket, the two bonding plates are bonded to the main frame and are passed through by a group of protrusions, and a limit assembly is provided inside the mounting bracket, and the limit assembly includes a bidirectional screw rod rotating on the inner side of the mounting bracket, both ends of the bidirectional screw rod are threadedly connected to a moving block, and a square plug rod is fixed at the bottom of the moving block, and the square plug rod passes through the mounting bracket and the side hole is inserted into the rod hole on one side of the protrusion.

[0007] Preferably, a knob is fixed at the middle position of the bidirectional screw rod, and a circle of external teeth is evenly arranged on the outer wall of the knob.

[0008] Preferably, the mounting bracket has an appearance of a square box design, and the top of the mounting bracket and the fitting surface with the main frame are both open designs, a dust shield is placed on the top of the mounting bracket, the small cylinders fixed at the four corners of the top of the mounting bracket are inserted into the circular holes at the bottom of the dust shield, and a pull ring is fixed on the top of the dust shield.

[0009] Preferably, the top of the knob is meshed with an arc-shaped tooth plate through external teeth, and the arc-shaped tooth plate is fixed to the bottom of the dust shield.

[0010] Preferably, two bolt plates are fixed on one side of the mounting bracket, the bolt plates are inserted into the grooves of the opening plate, and the opening plate is fixed on the back of the circuit breaker body, and the bolt plates and the opening plate are fixed and docked by bolts.

[0011] Preferably, the four corners of the outer side of the protrusion and the square plug rod are all designed as curved surfaces.

[0012] Preferably, a threaded head is fixed on one side of the protrusion, and the threaded head is butted with a threaded hole on the main frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model designs a protrusion, a fitting plate and a limit assembly. When installing, the mounting bracket is placed on one side of the main frame, and a group of protrusions pass through the openings of the fitting plate. At this time, a hand is inserted from the top opening of the mounting bracket, and the bidirectional screw rod is rotated to move the moving block, drive the square plug rod to move outward, and finally insert it into the rod hole on the inner side of the protrusion. When disassembling, the bidirectional screw rod is rotated in the opposite direction to quickly disassemble the mounting bracket, and then the circuit breaker body and the mounting bracket can be disassembled outside the cabinet. The convenient movable connection installation is designed to solve the problem of inconvenience of disassembly and assembly by screws in the prior art.

[0015] 2. The utility model has a stable and optimized design by designing a knob and an arc-shaped tooth plate. The knob is convenient for rotating the bidirectional screw rod. At the same time, after the dust shield plate is placed, the arc-shaped tooth plate at the bottom is just engaged with the outer teeth of the knob, so that the bidirectional screw rod will not rotate due to external interference, making the connection between the mounting bracket and the main frame easy to disassemble and very stable, solving the problem of insufficient stability when using a movable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a mounting bracket structure for a circuit breaker according to the present invention;

[0017] Figure 2 This is a schematic diagram of a three-dimensional structure of a mounting bracket and a circuit breaker body connected with a mounting bracket structure of a circuit breaker in the present invention;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of a limiting component that cooperates with a circuit breaker mounting bracket structure in the present invention;

[0019] Figure 4 This is a schematic diagram of a three-dimensional structure of a mounting bracket that cooperates with a circuit breaker mounting bracket structure in the present invention;

[0020] Figure 5 This is a schematic diagram of a three-dimensional structure of a mounting bracket and a circuit breaker body split according to the present invention.

[0021] In the figure: 1. main frame; 11. protrusion; 12. threaded head; 2. mounting bracket; 21. bolt plate; 22. fitting plate; 23. small cylinder; 3. circuit breaker body; 31. opening plate; 4. limit assembly; 41. bidirectional screw rod; 42. moving block; 43. square plug rod; 44. knob; 5. dust shield; 51. pull ring; 52. arc tooth plate. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] like Figure 1-Figure 5 As shown, it includes a main frame 1, a mounting bracket 2 and a circuit breaker body 3. The main frame 1 is installed on the inner wall of the distribution cabinet, and the circuit breaker body 3 is installed on one side of the mounting bracket 2. Four groups of protrusions 11 are provided on the main frame 1, and each group of protrusions 11 is provided with two. Fitting plates 22 are fixed on both sides of the mounting bracket 2. The two fitting plates 22 are fitted with the main frame 1 and passed through by a group of protrusions 11. A limit assembly 4 is provided inside the mounting bracket 2. The limit assembly 4 includes a bidirectional screw rod 41 rotating on the inner side of the mounting bracket 2. Both ends of the bidirectional screw rod 41 are threadedly connected to a moving block 42. A square plug rod 43 is fixed at the bottom of the moving block 42. The square plug rod 43 passes through the side hole of the mounting bracket 2 and is inserted into the rod hole on one side of the protrusion 11. The appearance of the mounting bracket 2 is a square box design, and the top of the mounting bracket 2 and the fitting surface with the main frame 1 are both open designs.

[0024] By designing the protrusions 11, the fitting plate 22 and the limit assembly 4, the main frame 1 is placed on the inner wall of the cabinet during installation. This is the existing design. Then the circuit breaker body 3 is installed on the mounting bracket 2, and then the mounting bracket 2 is placed on one side of the main frame 1, and a group of protrusions 11 pass through the openings of the fitting plate 22. At this time, the hand is inserted from the top opening of the mounting bracket 2, and the two-way screw rod 41 is rotated. Under the limitation of the square plug rod 43, the moving block 42 moves, driving the square plug rod 43 to move outward, and finally inserted into the rod hole on the inner side of the protrusion 11. In this way, the installation is very fast and convenient, and at the same time, the firmness is very high and it is not easy to loosen. When disassembling, the two-way screw rod 41 is rotated in the opposite direction to quickly disassemble the mounting bracket 2, and then the circuit breaker body 3 and the mounting bracket 2 can be disassembled outside the cabinet.

[0025] The four corners of the outer sides of the protrusion 11 and the square insert rod 43 are all designed as curved surfaces.

[0026] By optimizing the appearance structure of the protrusion 11 and the square plug rod 43, the outer corners of the protrusion 11 and the square plug rod 43 are designed as curved surfaces, which can better fit with the mounting bracket, the protrusion 11 and the holes or through-holes on the bonding plate 22, thereby further improving the stability of the connection. It should be noted that the openings or through-holes are in contact with the outer walls of the protrusion 11 and the square plug rod 43, which are all existing design methods.

[0027] A dust shield 5 is placed on the top of the mounting bracket 2 , and small cylinders 23 fixed at the four corners of the top of the mounting bracket 2 are inserted into the circular holes at the bottom of the dust shield 5 , and a pull ring 51 is fixed on the top of the dust shield 5 .

[0028] By designing the knob 44, the dust shield 5, the small cylinder 23 and the pull ring 51, in the dust-proof optimization design, the side opening of the mounting bracket 2 fits closely with the main frame 1 to save materials, and the top opening is designed to facilitate internal operation, but it is easy for dust to enter. Therefore, the dust shield 5 can be placed on the top of the mounting bracket 2 to cover the upper opening, and the small cylinder 23 is limited to avoid deviation, so as to prevent the internal limit component 4 from being stuck with too much dust.

[0029] A knob 44 is fixed in the middle of the bidirectional screw rod 41 . The outer wall of the knob 44 is evenly provided with a circle of external teeth. An arc-shaped tooth plate 52 is meshed with the external teeth at the top of the knob 44 . The arc-shaped tooth plate 52 is fixed to the bottom of the dust shield 5 .

[0030] By designing the knob 44 and the arc-shaped tooth plate 52, in terms of stable and optimized design, the knob 44 is convenient for rotating the bidirectional screw rod 41. At the same time, after the dust shield 5 is placed, the arc-shaped tooth plate 52 at the bottom thereof just meshes with the outer teeth of the knob 44, so that the bidirectional screw rod 41 will not rotate due to external interference, so that the connection between the mounting bracket 2 and the main frame 1 is easy to disassemble and also very stable. It should be noted that when the square plug rod 43 is not fully inserted into the rod hole of the protrusion 11, the arc-shaped tooth plate 52 cannot mesh with the knob 44, that is, the dust shield 5 cannot fit with the top surface of the mounting bracket 2, and the dust shield 5 is made of metal and will not move up easily.

[0031] Two bolt plates 21 are fixed on one side of the mounting bracket 2, and the bolt plates 21 are inserted into the grooves of the opening plate 31, and the opening plate is fixed on the back of the circuit breaker body 3, and the bolt plates 21 and the opening plate 31 are fixed and docked by bolts, and a threaded head 12 is fixed on one side of the protrusion 11, and the threaded head 12 is docked with the threaded hole on the main frame 1.

[0032] By designing the bolt plate 21, the threaded head 12 and the opening plate 31, the threaded head 12 allows the protrusion 11 to be disassembled from the main frame 1, which is convenient for maintenance, cleaning and transportation, and the bolt plate 21 and the opening plate 31 are installed in coordination so that the circuit breaker body 3 does not need to be fitted with the mounting bracket 2 during installation, thereby improving the convection heat dissipation effect of the circuit breaker body 3 and reducing equipment loss.

[0033] Working principle: During assembly, place the main frame 1 on the inner wall of the cabinet, then install the circuit breaker body 3 on the mounting bracket 2, and then place the mounting bracket 2 on one side of the main frame 1, and a group of protrusions 11 pass through the openings of the fitting plate 22. At this time, the hand extends from the top opening of the mounting bracket 2, and rotates the bidirectional screw rod 41. Under the limit of the square plug rod 43, the moving block 42 moves, driving the square plug rod 43 to move outward, and finally insert it into the rod hole on the inner side of the protrusion 11, and then install the remaining circuit breaker bodies 3 in turn. After the installation is completed, place the dust shield 5 on the top of the mounting bracket 2 to cover the upper opening, and at the same time, the arc-shaped tooth plate 52 just engages with the outer teeth of the knob 44 to complete the limit. After that, the circuit breaker body 3 can work normally. When disassembling and maintaining, remove the dust shield 5, and rotate the bidirectional screw rod 41 in the opposite direction to take out the circuit breaker body 3 and the mounting bracket 2.

[0034] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A circuit breaker mounting bracket structure, comprising a main frame (1), a mounting bracket (2) and a circuit breaker body (3), wherein the main frame (1) is mounted on the inner wall of a power distribution cabinet, and the circuit breaker body (3) is mounted on one side of the mounting bracket (2), characterized in that: The main frame (1) is provided with four groups of protrusions (11), each group of the protrusions (11) is provided with two protrusions, and bonding plates (22) are fixed on both sides of the mounting bracket (2), the two bonding plates (22) are bonded to the main frame (1) and are penetrated by a group of protrusions (11), and a limiting component (4) is provided inside the mounting bracket (2); The limiting assembly (4) comprises a bidirectional screw rod (41) which rotates on the inner side of the mounting bracket (2), the two ends of the bidirectional screw rod (41) being threadedly connected to a moving block (42), a square plug rod (43) being fixed at the bottom of the moving block (42), and the square plug rod (43) passing through a side hole of the mounting bracket (2) and inserted into a side rod hole of the protrusion (11).

2. A circuit breaker mounting bracket structure according to claim 1, characterized in that: A knob (44) is fixed at the middle position of the bidirectional screw rod (41), and a circle of external teeth is evenly arranged on the outer wall of the knob (44).

3. A circuit breaker mounting bracket structure according to claim 2, characterized in that: The mounting bracket (2) has a square box appearance, and the top of the mounting bracket (2) and the mating surface with the main frame (1) are both open designs. A dust shield (5) is placed on the top of the mounting bracket (2). Small cylinders (23) fixed at the four corners of the top of the mounting bracket (2) are inserted into the circular holes at the bottom of the dust shield (5), and a pull ring (51) is fixed on the top of the dust shield (5).

4. A circuit breaker mounting bracket structure according to claim 3, characterized in that: The top of the knob (44) is meshed with an arc-shaped tooth plate (52) via external teeth, and the arc-shaped tooth plate (52) is fixed to the bottom of the dust shield (5).

5. A circuit breaker mounting bracket structure according to claim 1, characterized in that: Two bolt plates (21) are fixed on one side of the mounting bracket (2), the bolt plates (21) are inserted into grooves of an opening plate (31), and the opening plate is fixed on the back of the circuit breaker body (3), and the bolt plates (21) and the opening plate (31) are fixedly connected by bolts.

6. A circuit breaker mounting bracket structure according to claim 1, characterized in that: The four corners on the outside of the protrusion (11) and the square insert rod (43) are all designed as curved surfaces.

7. A circuit breaker mounting bracket structure according to claim 6, characterized in that: A threaded head (12) is fixed on one side of the protrusion (11), and the threaded head (12) is butted against a threaded hole on the main frame (1).

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