Low-voltage switch cabinet convenient for adjusting mounting rack

Abstract

The utility model discloses a low-voltage switch cabinet convenient to adjust a mounting rack, which comprises a switch cabinet body, two mounting rack adjusting assemblies are arranged on the side wall of the rear side of the switch cabinet body, and an in-cabinet air drying base is arranged in the bottom area of the inner cavity of the switch cabinet body. Two mounting racks are arranged on the side wall of the rear side of the inner cavity of the switch cabinet body, and in-cabinet components are mounted on the surfaces of the front sides of the mounting racks. According to the technical scheme, the mounting rack adjusting assembly is arranged at the back of the switch cabinet, and the screw rod penetrating through the mounting rack and the component extends out of the rear side in the cabinet, so that the mounting rack can be adjusted without stretching the body into the cabinet when the vertical position of the mounting rack is adjusted; and the screw rod is limited by a plurality of groups of arc-shaped metal sheets in the square frame, so that the positioning effect on the screw rod in the adjusting process is realized through a space formed by the plurality of arc-shaped metal sheets.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage switchgear technology, and specifically to a low-voltage switchgear with an easily adjustable mounting bracket. Background Technology

[0002] Low-voltage switchgear refers to cabinets that house electrical components such as busbars, circuit breakers, conventional relays, integrated relay protection devices, metering instruments, isolating switches, and grounding switches. Typically, two rows of mounting racks are installed inside the cabinet, and various electrical components are bolted to these racks. However, during switchgear assembly, to maximize the use of internal space, the positions of the mounting racks often need to be adjusted to maintain reasonable spacing between components. Currently, adjusting the mounting racks requires operators to partially insert themselves into the cabinet before tightening the bolts connecting the mounting rack to the cabinet body. This method is not only cumbersome but also poses significant safety hazards. Utility Model Content

[0003] The purpose of this utility model is to provide a technical solution for a low-voltage switchgear with an easily adjustable mounting bracket, thereby addressing the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following:

[0004] The switch cabinet includes a switch cabinet body, two mounting bracket adjustment components are provided on the rear side wall of the switch cabinet body, an air drying base is provided in the bottom area of ​​the inner cavity of the switch cabinet body, two mounting brackets are provided on the rear side wall of the inner cavity of the switch cabinet body, and internal components are mounted on the front surface of the mounting brackets.

[0005] The cabinet air drying base includes a base plate, a cover fixed to the upper surface of the base plate and extending into the bottom of the switch cabinet cavity, and an axial flow fan fixed to the top surface of the cover cavity. An air filter is inserted into the inner cavity of the cover.

[0006] The mounting bracket adjustment assembly includes a square frame fixed to the rear side wall of the switch cabinet, and two rows of arc-shaped metal pieces fixed in a linear array at equal intervals on the left and right sides of the inner cavity of the square frame. There is a space between every four arc-shaped metal pieces, and a screw is inserted inside the space. A limit block is fixed to the front end of the screw, and a nut and a washer located in front of the nut are screwed onto the rear end section of the screw.

[0007] As a preferred embodiment of this utility model: the overlapping contact positions of the components inside the cabinet and the mounting bracket are all provided with mounting holes, the screw passes through the mounting holes, and the rear end face of the limiting block contacts the front end face of the mounting hole on the components inside the cabinet.

[0008] As a preferred embodiment of this utility model: two openings are provided on the rear surface of the switch cabinet, and the front end face of the square frame is fixedly connected to the rear end face of the opening.

[0009] As a preferred embodiment of this utility model: there is a gap between each pair of arc-shaped metal sheets that are close to each other on the left and right sides, allowing the screw to move up and down.

[0010] As a preferred embodiment of this utility model, the front end face of the gasket is in contact with the rear end face of the square frame.

[0011] As a preferred embodiment of this utility model: the four sides of the base plate are fixedly connected to the bottom perimeter of the inner cavity side wall of the switch cabinet, and there is a gap between the bottom surface of the base plate and the ground to allow air to enter.

[0012] As a preferred embodiment of this utility model, the top surface of the cover is provided with 7-9 exhaust grilles for air to enter the interior of the switch cabinet.

[0013] As a preferred embodiment of this utility model: a filter insert for inserting and removing the air filter is provided on the front end face of the cover, and a groove for inserting the rear end of the air filter is provided on the rear side wall of the inner cavity of the cover.

[0014] As a preferred embodiment of this utility model: the front end face of the switch cabinet is fitted with two cabinet doors with locks via hinges.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] This technical solution involves installing an internal air drying base at the bottom of the low-voltage switchgear's interior. An axial flow fan draws in air filtered and dried by a hollow filter element, effectively preventing moisture damage to the internal components. An adjustable mounting bracket assembly is installed at the back of the switchgear, allowing a screw that runs through the bracket and components to extend from the rear of the cabinet. This eliminates the need to reach into the cabinet to adjust the mounting bracket's position. Furthermore, the screw is positioned by multiple sets of curved metal plates within a square frame, with the space created by these plates providing proper positioning during adjustment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a front view diagram of a low-voltage switchgear.

[0019] Figure 2 This is a schematic diagram of the rear view of a low-voltage switchgear.

[0020] Figure 3 This is a schematic diagram of the air drying base at the bottom of a low-voltage switchgear.

[0021] Figure 4 A schematic diagram of the mounting bracket adjustment assembly;

[0022] Figure 5 This is a magnified schematic diagram of the mounting bracket adjustment assembly.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Switch cabinet body; 2. Internal components; 3. Internal air drying base; 31. Base plate; 32. Cover; 33. Axial flow fan; 34. Air filter; 35. Filter inlet; 36. Exhaust grille; 4. Cabinet door; 5. Mounting bracket adjustment assembly; 51. Square frame; 52. Curved metal sheet; 53. Limit block; 54. Screw; 55. Nut; 56. Washer; 6. Mounting bracket; 7. Opening. Detailed Implementation

[0025] To provide a clearer explanation and description of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below.

[0026] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of each embodiment. Specific details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures. The disclosures of various publications, patents, and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solutions of this utility model will be clearly and completely described below in conjunction with embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.

[0027] An embodiment of a preferred technical solution for a low-voltage switchgear with an easily adjustable mounting bracket includes the following:

[0028] It includes a switch cabinet 1, two mounting bracket adjustment components 5 are provided on the rear side wall of the switch cabinet 1, an air drying base 3 is provided in the bottom area of ​​the inner cavity of the switch cabinet 1, two mounting brackets 6 are provided on the rear side wall of the inner cavity of the switch cabinet 1, and internal components 2 are installed on the front surface of the mounting brackets 6.

[0029] The cabinet air drying base 3 includes a base plate 31, a cover 32 fixed to the upper surface of the base plate 31 and extending into the bottom of the inner cavity of the switch cabinet 1, and an axial flow fan 33 fixed to the top surface of the inner cavity of the cover 32. An air filter element 34 is inserted into the inner cavity of the cover 32.

[0030] The mounting bracket adjustment assembly 5 includes a square frame 51 fixed to the rear side wall of the switch cabinet 1, and two rows of arc-shaped metal pieces 52 fixed in a linear array at equal intervals on the left and right sides of the inner cavity of the square frame 51. There is space between every four arc-shaped metal pieces 52. A screw 54 is inserted inside the space. A limit block 53 is fixed to the front end of the screw 54. A nut 55 is screwed onto the rear end section of the screw 54 and a washer 56 is sleeved on the front side of the nut 55.

[0031] The overlapping contact positions of the internal components 2 and the mounting bracket 6 are all provided with mounting holes. The screw 54 passes through the mounting holes, and the rear end face of the limiting block 53 contacts the front end face of the mounting hole on the internal components 2. Two openings 7 are provided on the rear surface of the switch cabinet 1. The front end face of the square frame 51 is fixedly connected to the rear end face of the opening 7. There is a gap between each pair of arc-shaped metal pieces 52 that are close to each other, allowing the screw 54 to move up and down. The front end face of the gasket 56 contacts the rear end face of the square frame 51.

[0032] The four sides of the base plate 31 are fixedly connected to the bottom of the inner cavity side wall of the switch cabinet 1. There is a gap between the bottom surface of the base plate 31 and the ground to allow air to enter. The top surface of the cover 32 is provided with 7-9 exhaust grilles 36 to allow air to enter the interior of the switch cabinet 1. The front end face of the cover 32 is provided with a filter insert 35 for inserting and removing the air filter element 34. The rear side wall of the inner cavity of the cover 32 is provided with a groove for inserting the rear end of the air filter element 34. The front end face of the switch cabinet 1 is provided with two cabinet doors 4 with door locks installed by hinges.

[0033] Based on the above-described preferred technical solution, the workflow of this technical solution is explained as follows:

[0034] When adjusting the vertical position of the mounting bracket 6, loosen the nut 55 on the screw 54 to release the tight contact between the washer 56 and the square frame 51. Then, use pliers to clamp the screw 54 and move it up and down inside the square frame 51 until the screw 54 moves to the appropriate position. While the screw 54 is moving, it drives the mounting bracket 6 and the internal components 2 to move up and down inside the switch cabinet 1. After the positions of the mounting bracket 6 and the internal components 2 are adjusted, tighten the nut 55 and washer 56 on the screw 54 again.

[0035] When the internal components 2 inside the switch cabinet 1 are operating normally, the axial flow fan 33 draws in external air into the switch cabinet 1 to cool the internal components 2. The drawn-in air is filtered by the air filter 34, which not only dries the air but also prevents dust from entering the switch cabinet 1.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A low-voltage switchgear with an adjustable mounting bracket, comprising a switchgear cabinet (1), characterized in that: Two mounting bracket adjustment components (5) are provided on the rear side wall of the switch cabinet (1). An air drying base (3) is provided in the bottom area of ​​the inner cavity of the switch cabinet (1). Two mounting brackets (6) are provided on the rear side wall of the inner cavity of the switch cabinet (1). Components (2) are installed on the front surface of the mounting brackets (6). The cabinet air drying base (3) includes a base plate (31), a cover (32) fixed on the upper surface of the base plate (31) and extending into the bottom of the inner cavity of the switch cabinet (1), and an axial flow fan (33) fixed on the top surface of the inner cavity of the cover (32). An air filter (34) is inserted into the inner cavity of the cover (32). The mounting bracket adjustment assembly (5) includes a square frame (51) fixed on the rear side wall of the switch cabinet (1), and two rows of arc-shaped metal pieces (52) fixed in a linear array at equal intervals on the left and right sides of the inner cavity of the square frame (51). There is a space between each four arc-shaped metal pieces (52) that are close to each other. A screw (54) is inserted in the space. A limit block (53) is fixed at the front end of the screw (54). A nut (55) is screwed on the rear end section of the screw (54) and a washer (56) is sleeved on the front side of the nut (55).

2. A low-voltage switchgear with an adjustable mounting bracket according to claim 1, characterized in that: The overlapping contact positions of the cabinet components (2) and the mounting bracket (6) are both provided with mounting holes. The screw (54) passes through the mounting holes, and the rear end face of the limiting block (53) contacts the front end face of the mounting hole on the cabinet components (2).

3. A low-voltage switchgear with an adjustable mounting bracket according to claim 1, characterized in that: The switch cabinet (1) has two openings (7) on the left and right sides on the rear surface, and the front end face of the square frame (51) is fixedly connected to the rear end face of the opening (7).

4. A low-voltage switchgear with an adjustable mounting bracket according to claim 1, characterized in that: There is a gap between each pair of the arc-shaped metal plates (52) that are close to each other, allowing the screw (54) to move up and down.

5. A low-voltage switchgear with an adjustable mounting bracket according to claim 1, characterized in that: The front end face of the gasket (56) contacts the rear end face of the square frame (51).

6. A low-voltage switchgear with an adjustable mounting bracket according to claim 1, characterized in that: The four sides of the base plate (31) are fixedly connected to the bottom of the inner cavity side wall of the switch cabinet (1), and there is a gap between the bottom surface of the base plate (31) and the ground to allow air to enter.

7. A low-voltage switchgear with an adjustable mounting bracket according to claim 1, characterized in that: The top surface of the cover (32) is provided with 7-9 exhaust grilles (36) for air to enter the switch cabinet (1).

8. A low-voltage switchgear with an adjustable mounting bracket according to claim 1, characterized in that: The front end face of the cover (32) is provided with a filter insert (35) for inserting and removing the air filter (34), and the rear side wall of the inner cavity of the cover (32) is provided with a groove for inserting the rear end of the air filter (34).

9. A low-voltage switchgear with an adjustable mounting bracket according to claim 1, characterized in that: The front end face of the switch cabinet (1) is fitted with two cabinet doors (4) with locks via hinges.

Images