Distribution box miniature circuit breaker mounting bracket with adjustable horizontal dimensions

Abstract

A mounting bracket for a miniature circuit breaker in a distribution box with adjustable transverse dimensions comprises several mounting plates, each having support legs perpendicularly connected to its left and right ends. Each mounting plate comprises two main plates, left and right, and several splicing plates. A transversely extending sleeve is fixed to the back of the left main plate, while a rod support is fixed to the back of the right main plate. A transversely extending circular rod is also provided, with its right end fixedly connected to the rod support and its left end inserted into and capable of sliding laterally along the sleeve cavity. A collar is fixed to the back of each splicing plate, through which the circular rod passes. The left main plate has a main socket facing right, the right main plate has a main tenon facing left, and the splicing plates have splicing sockets facing right and splicing tenons facing left. The present invention can adjust the transverse width of each mounting plate according to the transverse width of the miniature circuit breaker.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical distribution equipment, and in particular relates to a miniature circuit breaker mounting bracket for a distribution box with adjustable transverse dimensions. Background Art

[0002] A plurality of miniature circuit breakers are arranged inside the distribution box of the power supply line control system, and a panel is arranged on the front of the distribution box. Figure 1 、 Figure 2 As shown, a mounting bracket for mounting miniature circuit breakers is provided inside the distribution box. The mounting bracket includes a mounting plate 1 and a supporting foot plate 10. One end of the supporting foot plate 10 is provided with a supporting foot seat 74 for fixed connection to the distribution box. The left and right ends of each mounting plate 1 are respectively vertically connected to the left and right supporting foot plates 10. The supporting foot plates 10 are arranged in sequence in the horizontal direction. The back of each miniature circuit breaker 92 is mounted on the mounting plate 1 of the mounting bracket.

[0003] The miniature circuit breakers 92 currently available on the market vary in size, especially in their lateral width ( Figure 1 Because there is no standard size for the CD width (in the middle), different miniature circuit breaker models require mounting brackets of varying sizes to ensure a compact transverse installation of miniature circuit breaker 92. For these reasons, existing mounting brackets for miniature circuit breakers must be tailored to the specific transverse dimensions of the corresponding miniature circuit breaker. This requires distribution box manufacturers to customize mounting brackets of varying sizes, hindering large-scale, standardized production, resulting in high production costs and complex management. Summary of the Invention

[0004] The object of the present invention is to overcome the above disadvantages and provide a distribution box miniature circuit breaker mounting bracket with adjustable lateral dimensions, which can adjust the lateral width of the mounting bracket according to the lateral width of the miniature circuit breaker.

[0005] The objective can be achieved according to the following scheme: a distribution box miniature circuit breaker mounting bracket with adjustable transverse dimensions, comprising a plurality of mounting plates, wherein the left and right ends of each mounting plate are respectively vertically connected to support foot plates, and the support foot plates are provided with support feet for fixed connection to the distribution box; the characteristic is that each mounting plate includes two left and right main plates and a plurality of splicing plates, the side of the main plate facing the miniature circuit breaker is called the main plate front, and the side of the main plate facing away from the miniature circuit breaker is called the main plate back, wherein the main plate on the left is called the left main plate, and the main plate on the right is called the right main plate, the left main plate is fixedly and vertically connected to the support foot plate on the left, and the right main plate is fixedly and vertically connected to the support foot plate on the right, and the front of the left main plate and the front of the right main plate are in the same plane;

[0006] A transversely extending sleeve is fixed to the back of the left main plate, and the sleeve forms a circular cylindrical cavity. A rod support is fixed to the back of the right main plate; a transversely extending circular rod is also provided, the right end of the circular rod is fixedly connected to the rod support, and the left end of the circular rod is inserted into the cylindrical cavity of the sleeve and can slide laterally along the cylindrical cavity of the sleeve.

[0007] A collar is fixedly provided on the back of each splicing plate, and the collar is provided with a circular collar hole, through which the circular insertion rod passes; the distance between the front of the splicing plate and the central axis of the circular insertion rod is equal to the distance between the front of the right main plate and the central axis of the circular insertion rod; the portion of the collar close to the back of the splicing plate is called the collar proximal end portion, and the portion of the collar away from the back of the splicing plate is called the collar distal end portion, and the collar distal end portion and the collar proximal end portion are respectively located on opposite sides of the collar collar hole; the distance between the central axis of the circular insertion rod and the back of the right main plate is greater than the radius of the circular insertion rod, and a gap is formed between the circular insertion rod and the back of the right main plate to accommodate the collar distal end portion;

[0008] The right edge of the left main plate is provided with a main socket facing right, and the left edge of the right main plate is provided with a main tenon facing left, and the main socket and the main tenon form an inserting fit; the right edge of each splicing plate is provided with a splicing socket facing right, and the left edge of each splicing plate is provided with a splicing tenon facing left; the size and shape of the splicing sockets are the same as those of the main sockets, and the size and shape of the splicing tenons are the same as those of the main tenons;

[0009] When the splicing plate rotates around the circular insertion rod until its front direction is the same as the front direction of the right main plate, the front of the splicing plate and the front of the right main plate are in the same plane, the lateral projection position of the splicing socket is the same as the lateral projection position of the main socket, and the lateral projection position of the splicing tenon is the same as the lateral projection position of the main tenon.

[0010] The present invention has the following advantages and effects:

[0011] The present invention adjusts the lateral width of each mounting plate based on the lateral width of the miniature circuit breaker. Specifically, the number of splicing plates actually assembled between the left and right main plates is adjusted. Splicing plates temporarily unassembled can be rotated and temporarily hidden behind the right main plate. Therefore, the mounting bracket of the present invention can accommodate miniature circuit breakers of varying lateral widths, eliminating the need for custom mounting brackets for each size. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the front structure of a traditional distribution box.

[0013] Figure 2 yes Figure 1 Schematic diagram of the internal side structure of the distribution box shown.

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of a specific embodiment of the present invention.

[0015] Figure 4 yes Figure 3 Schematic diagram of the three-dimensional structure of the left main plate and the left supporting leg inner plate.

[0016] Figure 5 yes Figure 4 The structure shown is a schematic diagram of the three-dimensional structure seen from another angle.

[0017] Figure 6 yes Figure 4 Schematic side view of the structure shown.

[0018] Figure 7 yes Figure 4 Schematic front view of the structure shown.

[0019] Figure 8 yes Figure 3 Schematic diagram of the three-dimensional structure of the right main plate and the right supporting foot inner plate.

[0020] Figure 9 yes Figure 8 The structure shown is a schematic diagram of the three-dimensional structure seen from another angle.

[0021] Figure 10 yes Figure 8 Schematic side view of the structure shown.

[0022] Figure 11 yes Figure 8 Schematic front view of the structure shown.

[0023] Figure 12 yes Figure 3 Schematic diagram of the three-dimensional structure of each spliced ​​plate.

[0024] Figure 13 yes Figure 3 The three-dimensional structure diagram of the spliced ​​panels shown is seen from another angle.

[0025] Figure 14 yes Figure 15 Schematic diagram of the partial front view structure of the spliced ​​plate shown.

[0026] Figure 15 yes Figure 3 Schematic diagram of a partial cross-section of the structure shown.

[0027] Figure 16 yes Figure 3 Schematic diagram of the changing state of the left main plate and the right main plate of the structure shown after being pulled apart.

[0028] Figure 17 yes Figure 16 Schematic diagram of the changing state of one of the splicing panels of the structure shown after it is separated from its adjacent splicing panels.

[0029] Figure 18 yes Figure 17 Schematic diagram of the changing state of one of the splicing plates of the structure shown after rotation.

[0030] Figure 19 yes Figure 18 Schematic diagram of the changing state of one of the splicing panels of the structure shown after being assembled into the left main panel and the right main panel.

[0031] Figure 20 It is a schematic diagram of another adjustment state of a specific embodiment of the present invention.

[0032] Figure 21 yes Figure 20 Schematic diagram of a partial cross-section of the structure shown. Implementation Method

[0033] Figure 3 、 Figure 17 、 Figure 15 、 Figure 21 、 Figure 20 The illustrated embodiment shows a miniature circuit breaker mounting bracket for a distribution box with adjustable transverse dimensions, comprising a plurality of mounting plates, each of which has support legs 10 vertically connected to the left and right ends, respectively. The support legs 10 are provided with support feet 74 for fixed connection to the distribution box. Each mounting plate comprises two main plates on the left and right, and eight splicing plates 3. The main plate on the left is referred to as the left main plate 1, and the main plate on the right is referred to as the right main plate 2. The side of the main plate facing the miniature circuit breaker is referred to as the front of the main plate, and the side of the main plate facing away from the miniature circuit breaker is referred to as the back of the main plate. In each mounting plate, the left main plate 1 is fixedly and vertically connected to the support leg 10 on the left, and the right main plate 2 is fixedly and vertically connected to the support leg 10 on the right. The support feet 74 are mounted on the distribution box, with the front of the left main plate 1 and the front of the right main plate 2 being in the same plane.

[0034] Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 15 、 Figure 21 As shown, a transversely extending sleeve 40 is fixed to the back of the left main plate 1, and the sleeve forms a circular cylinder cavity 401; Figure 9 、 Figure 10 、 Figure 11 、 Figure 8 As shown, a rod support 41 is fixed to the back of the right main plate 2; Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 15 、 Figure 21 As shown, a transversely extending circular insertion rod 4 is further provided, the right end of the circular insertion rod 4 is fixedly connected to the insertion rod support 41, and the left end section of the circular insertion rod 4 is inserted into the barrel cavity 401 of the sleeve and can slide transversely along the barrel cavity 401 of the sleeve;

[0035] Figure 15 、 Figure 17 、 Figure 13 、 Figure 12 、 Figure 14 、 Figure 18 As shown, a collar 33 is fixed on the back of each splicing plate 3, and the collar 33 has a circular hole 30, through which the circular rod 4 passes. The distance between the front of the splicing plate 3 and the central axis of the circular rod 4 is equal to the distance between the front of the right main plate 2 and the central axis of the circular rod 4. The part of the collar 33 close to the back of the splicing plate is called the collar proximal end (as shown in FIG. Figure 14 The portion of the collar away from the back of the splicing plate is called the collar distal end 331 (e.g. Figure 14 The distance between the central axis of the circular plug rod 4 and the back surface of the right main plate 2 is greater than the radius of the circular plug rod 4. A gap 42 capable of accommodating the distal end of the collar is formed between the circular plug rod 4 and the back surface of the right main plate 2. This means that the size of the gap 42 between the circular plug rod 4 and the back surface of the right main plate 2 is greater than the radial thickness of the distal end of the collar (i.e., Figure 14 The purpose is to allow the distal end of the collar to enter the gap 42 between the circular rod 4 and the back of the right main plate 2 when needed (i.e. when the splicing plate 3 needs to be hidden behind the right main plate).

[0036] Figure 4 、 Figure 5 、 Figure 9 、 Figure 8 、 Figure 12 、 Figure 13 As shown, the right edge of the left main plate 1 is provided with a main socket 11 facing right, and the left edge of the right main plate 2 is provided with a main tenon 21 facing left, and the main socket 11 and the main tenon 21 form an insert fit; the right edge of each splicing plate 4 is provided with a splicing socket 31 facing right, and the left edge of each splicing plate 3 is provided with a splicing tenon 32 facing left; the size and shape of the splicing socket 31 are the same as those of the main socket 11, and the size and shape of the splicing tenon 32 are the same as those of the main tenon 21.

[0037] When the splicing plate 3 rotates around the circular rod 4 until its front face is in the same direction as the front face of the right main plate 2, the front face of the splicing plate 3 and the front face of the right main plate 2 are in the same plane, the lateral projection position of the splicing socket 31 is the same as the lateral projection position of the main socket 11, and the lateral projection position of the splicing tenon 32 is the same as the lateral projection position of the main tenon 21, as shown in 18, Figure 20 、 Figure 21 、 Figure 19 shown.

[0038] The operating principle of the above embodiment is as follows:

[0039] When all the splicing panels 3 in a certain installation panel are not assembled between the left main panel 1 and the right main panel 2, these splicing panels 3 can be hidden behind the right main panel 2, such as Figure 3 、 Figure 15 As shown, the distal end portion 331 of the collar of the splicing plate 3 is located in the gap 42 between the circular insertion rod 4 and the back surface of the right main plate 2;

[0040] When the lateral width of a support foot plate 10 of a frame needs to be adjusted, for example, when the width is increased, the left main plate 1 and the right main plate 2 can be pulled apart laterally (in this process, the circular insertion rod 4 slides laterally relative to each other in the sleeve 40). Figure 3 The status shown changes to Figure 16 As shown in the state, the collar 33 of the splicing plate 3 then moves along the axial direction of the circular rod 4, so that the splicing hole 31 of the splicing plate 3 is separated from the original corresponding tenon, and the splicing tenon 32 of the splicing plate 3 is separated from the original corresponding hole, as shown in FIG. Figure 16 The status shown changes to Figure 17 As shown in the state, the splicing plate 3 is then rotated about 180 degrees around the circular rod 4 so that the front of the splicing plate 3 faces the same direction as the front of the right main plate 2, and the front of the splicing plate 3 and the front of the right main plate 2 are in the same plane, as shown in FIG. Figure 18 As shown, finally, the splicing plate 3 and the right main plate 2 (including the supporting foot plate 10 corresponding to the right main plate 2) are moved axially along the circular plug rod 4, so that the splicing tenon 32 of the splicing plate 3 is plugged into the socket of the component on its left side (which may be the main socket 11 of the left main plate 1, or the splicing socket 31 of other splicing plates 3), and the splicing socket 31 of the splicing plate 3 is plugged into the socket of the component on its right side (which may be the main socket 21 of the right main plate 2, or the splicing tenon 32 of other splicing plates 3), thus completing the process of participating in the assembly of the splicing plate 3, so that the lateral width of the mounting plate is increased, for example, from Figure 3 The status shown is enlarged to Figure 19The state shown; the number of splicing panels 3 for each mounting plate to be extended can be any number from one to eight, and each mounting plate can be increased by up to eight splicing panels 3, for example, from Figure 19 Extended to Figure 20 、 Figure 21 Status shown.

[0041] When it is necessary to reduce the lateral width of a support leg 10 of a frame, it is only necessary to move the splicing plate 3 originally assembled between the left main plate 1 and the right main plate 2 to the back of the right main plate 2. The operation process is the opposite of the operation process of increasing the width.

Claims

1. A miniature circuit breaker mounting bracket for a distribution box with adjustable transverse dimensions, comprising a plurality of mounting plates, each of which has a support foot plate vertically connected to the left and right ends, each of which has a support foot base for fixed connection to the distribution box; characterized in that: Each mounting plate consists of two main plates, left and right, and several splicing plates. The side of the main plate facing the miniature circuit breaker is called the main plate front, and the side of the main plate facing away from the miniature circuit breaker is called the main plate back. The main plate on the left is called the left main plate, and the main plate on the right is called the right main plate. The left main plate is fixedly connected vertically to the left support foot, and the right main plate is fixedly connected vertically to the right support foot. The front of the left main plate and the front of the right main plate are in the same plane. A transversely extending sleeve is fixed to the back of the left main plate, and the sleeve forms a circular cylindrical cavity. A rod support is fixed to the back of the right main plate; a transversely extending circular rod is also provided, the right end of the circular rod is fixedly connected to the rod support, and the left end of the circular rod is inserted into the cylindrical cavity of the sleeve and can slide laterally along the cylindrical cavity of the sleeve. A collar is fixedly provided on the back of each splicing plate, and the collar is provided with a circular collar hole, through which the circular insertion rod passes; the distance between the front of the splicing plate and the central axis of the circular insertion rod is equal to the distance between the front of the right main plate and the central axis of the circular insertion rod; the portion of the collar close to the back of the splicing plate is called the collar proximal end portion, and the portion of the collar away from the back of the splicing plate is called the collar distal end portion, and the collar distal end portion and the collar proximal end portion are respectively located on opposite sides of the collar collar hole; the distance between the central axis of the circular insertion rod and the back of the right main plate is greater than the radius of the circular insertion rod, and a gap is formed between the circular insertion rod and the back of the right main plate to accommodate the collar distal end portion; The right edge of the left main plate is provided with a main socket facing right, and the left edge of the right main plate is provided with a main tenon facing left, and the main socket and the main tenon form an inserting fit; the right edge of each splicing plate is provided with a splicing socket facing right, and the left edge of each splicing plate is provided with a splicing tenon facing left; the size and shape of the splicing sockets are the same as those of the main sockets, and the size and shape of the splicing tenons are the same as those of the main tenons; When the splicing plate rotates around the circular insertion rod until its front direction is the same as the front direction of the right main plate, the front of the splicing plate and the front of the right main plate are in the same plane, the lateral projection position of the splicing socket is the same as the lateral projection position of the main socket, and the lateral projection position of the splicing tenon is the same as the lateral projection position of the main tenon.

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