A low-voltage power distribution switchgear

Abstract

This utility model relates to a low-voltage power distribution switchgear, including a cabinet body, a cabinet door rotatably connected to the cabinet body, a warning plate slidably connected to the inside of the cabinet door, a mounting frame fixedly connected to the warning plate, a cantilever rod slidably connected to the mounting frame, an adjusting screw rotatably connected inside the mounting frame, the adjusting screw being threadedly connected to the cantilever rod, a telescopic rod slidably connected inside the cantilever rod, an insulating pad fixedly connected to the telescopic rod, a fixing bolt threaded inside the cantilever rod, the fixing bolt cooperating with the telescopic rod, and a locking component for locking the cabinet door provided on the warning plate. By opening the locking component and moving the warning plate, the cantilever rod can be moved synchronously, realizing the closure of the internal circuit of the cabinet, thereby improving the safety of maintenance personnel during maintenance.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a low-voltage power distribution switchgear. Background Technology

[0002] Low-voltage switchgear, as the name suggests, is a power distribution device used in power supply systems for power distribution, control, metering, and cable connection. Generally, power supply bureaus and substations use high-voltage switchgear, which is then stepped down by transformers to the low-voltage side and led to low-voltage distribution cabinets. The low-voltage distribution cabinets then connect to various power distribution panels, control boxes, and switch boxes. Inside, multiple circuit breakers, indicator lights, wires, and other protective devices are assembled into a single unit to achieve the designed functional requirements of the power distribution device.

[0003] However, the existing technology still has the following shortcomings in use: when performing switch inspections, maintenance personnel cannot easily and quickly confirm whether the main circuit breaker of the existing power distribution switch cabinet is in the closed state, which may cause operators to accidentally open the power distribution cabinet that is in operation, leading to safety accidents and making it difficult to improve the safety of the power distribution cabinet. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a low-voltage power distribution switchgear.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A low-voltage power distribution switchgear includes a cabinet body, a cabinet door rotatably connected to the cabinet body, a warning plate slidably connected to the inside of the cabinet door, a mounting frame fixedly connected to the warning plate, a cantilever rod slidably connected to the mounting frame, an adjusting screw rotatably connected inside the mounting frame, the adjusting screw being threadedly connected to the cantilever rod, a telescopic rod slidably connected inside the cantilever rod, an insulating pad fixedly connected to the telescopic rod, a fixing bolt threaded inside the cantilever rod, the fixing bolt cooperating with the telescopic rod, and a locking component for locking the cabinet door provided on the warning plate.

[0006] The beneficial effects of this utility model are: by rotating the adjusting screw, the lifting rod can be moved horizontally, thereby adjusting the insulating pad to a position aligned with the circuit breaker. When the warning plate is pushed to open the cabinet door, the main switch can be disconnected through the insulating pad, which helps to improve the safety of maintenance personnel during maintenance.

[0007] Furthermore, the locking assembly includes a lock plate fixedly connected to the warning plate, at least three bolts fixedly connected to the top of the lock plate, and a through slot corresponding to the bolts is provided above the cabinet door, with a lock installed at one end of each bolt passing through the through slot.

[0008] The beneficial effects of this utility model are: after the bolt passes through the through groove, the lock can be installed at the end of the bolt that passes through the through groove, thereby limiting the bolt and simultaneously locking the cabinet door, making it more practical.

[0009] Furthermore, a viewing slot is provided on the cabinet door, and a first transparent plate is installed on the viewing slot. An observation slot is provided on one side of the cabinet body, and a second transparent plate is installed on the observation slot.

[0010] The beneficial effects of this utility model are: by installing the first transparent plate and the second transparent plate, it is possible to observe the inside of the cabinet, making it more convenient to use.

[0011] Furthermore, a pair of sliding grooves are provided on the cabinet door, and a handle frame is slidably connected to the two sliding grooves. The handle frame is fixedly connected to the warning board.

[0012] The beneficial effects of this utility model are: the position of the warning board can be adjusted more conveniently by using the handle bracket, which helps to improve the convenience of use.

[0013] Furthermore, an open rack is fixedly connected inside the cabinet.

[0014] The beneficial effects of this utility model are: by setting the circuit breaker rack at the top inside the cabinet, it is possible to install each circuit breaker, which helps to improve the convenience of circuit breaker installation.

[0015] Furthermore, a rain shield is fixedly connected to the top of the cabinet.

[0016] The beneficial effects of this utility model are: the rain shield can prevent rainwater from entering the cabinet, which helps to improve the service life of the cabinet. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the positional relationship between the through slot and the handle frame of this utility model; Figure 3 This is a schematic diagram showing the positional relationship between the cantilever pole and the open frame of this utility model; Figure 4 This is a schematic diagram showing the positional relationship between the cantilever pole, telescopic pole, and insulating pad of this utility model; Figure 5 This utility model Figure 4 Enlarged schematic diagram of structure A in the middle.

[0018] The attached diagram lists the components represented by each number as follows: 100. Cabinet body; 101. Cabinet door; 102. Mounting frame; 103. Cantilever rod; 104. Adjusting screw; 105. Telescopic rod; 106. Insulating pad; 107. Fixing bolt; 108. Warning board; 110. Lock plate; 111. Lock bolt; 112. Through groove; 113. Lock; 120. Visible groove; 121. Observation groove; 122. Slide groove; 123. Handle bracket; 130. Circuit breaker bracket; 131. Rain cover bracket. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0022] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0023] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0024] Example 1 like Figure 2 , Figure 4 and Figure 5 As shown, the device includes a cabinet 100, a cabinet door 101 rotatably connected to the cabinet 100, a warning plate 108 slidably connected to the inside of the cabinet door 101, a mounting frame 102 fixedly connected to the warning plate 108, a cantilever rod 103 slidably connected to the mounting frame 102, an adjusting screw 104 rotatably connected inside the mounting frame 102, the adjusting screw 104 being threadedly connected to the cantilever rod 103, a telescopic rod 105 slidably connected inside the cantilever rod 103, an insulating pad 106 fixedly connected to the telescopic rod 105, and a fixing bolt 107 threadedly connected inside the cantilever rod 103. The retractable rod 105 cooperates with the warning plate 108, which is equipped with a locking component for locking the cabinet door 101. The locking component includes a lock plate 110 fixedly connected to the warning plate 108. At least three bolts 111 are fixedly connected to the top of the lock plate 110. A through slot 112 corresponding to the bolts 111 is opened on the top of the cabinet door 101. A lock 113 is installed at one end of the bolts 111 passing through the through slot 112. The insulating pad 106 can provide insulation. When the main circuit breaker is closed, it can prevent the occurrence of electrical conductivity, which helps to improve the safety during use.

[0025] Example 2 Based on Embodiment 1, the present invention can be further improved in the following ways, such as... Figure 1As shown, a viewing slot 120 is provided on the cabinet door 101, and a first transparent plate is installed on the viewing slot 120. An observation slot 121 is provided on one side of the cabinet body 100, and a second transparent plate is installed on the observation slot 121. A pair of sliding grooves 122 are provided on the cabinet door 101, and a handle bracket 123 is slidably connected to the two sliding grooves 122. The handle bracket 123 is fixedly connected to the warning plate 108. The first and second transparent plates have a transparent effect, allowing observation of the interior of the cabinet body 100, thus improving the usability.

[0026] Example 3 Based on Embodiment 2, the present invention can be further improved in the following ways, such as... Figure 1 As shown, a circuit breaker bracket 130 is fixedly connected inside the cabinet 100, and a rain shield 131 is fixedly connected above the cabinet 100. The circuit breaker bracket 130 provides a more convenient view of the installation of each circuit breaker, making operation more convenient.

[0027] Specifically, when using this device: During the assembly stage of the cabinet 100, multiple air switches are first installed at predetermined positions on the circuit breaker rack 130. The installation positions of these multiple air switches are lower than the height of the lever 103 when the bolt 111 has not passed through the through slot 112. Then, the warning plate 108 is pushed upwards, guiding the bolt 111 to accurately pass through the preset through slot 112 of the cabinet door 101. At this time, maintenance personnel can observe the position of the insulating pad 106 through the observation slot 121. After determining the initial position, the warning plate 108 is pushed downwards, causing the bolt 111 to move out of the through slot 112 and opening the cabinet door 101. At this time, the movement distance of the lever 103 remains above the main circuit breaker. Then, the adjusting screw 104 is rotated to drive the lever 103 mechanism to move horizontally. Furthermore, by opening and closing the cabinet door 101 and simultaneously calibrating with the observation slot 121, it is ensured that the end of the lever 103 is horizontally aligned with the main circuit breaker operating handle. Next, loosen the fixing bolt 107 and pull the telescopic rod 105 out from inside the cantilever rod 103 until the insulating pad 106 at the top is in a matching position that can be effectively triggered with the main circuit breaker handle. Tighten the fixing bolt 107 to lock the telescopic length. Finally, push the warning plate 108 upward so that the locking bolt 111 passes through the through slot 112 and install the lock 113 on the exposed locking bolt 111 to achieve the normally closed locking of the cabinet door 101. When it is necessary to perform internal maintenance, the maintenance personnel can observe the visual slot 120 on the door blocked by the warning plate 108 to form a primary visual warning that operation is prohibited. After the maintenance personnel open the lock 113, they pull down the handle bracket 123 to move the warning plate 108 down. This action will simultaneously drive the insulating pad 106 to accurately abut and press down the main circuit breaker handle, forcibly cutting off the main power supply inside the cabinet, ensuring that the circuit is physically isolated before the cabinet door 101 is fully opened, thereby providing a safe environment for subsequent maintenance work.

[0028] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A low-voltage power distribution switchgear, comprising a cabinet (100), characterized in that, A cabinet door (101) is rotatably connected to the cabinet body (100). A warning plate (108) is slidably connected to the inside of the cabinet door (101). An installation frame (102) is fixedly connected to the warning plate (108). A lifting rod (103) is slidably connected to the installation frame (102). An adjusting screw (104) is rotatably connected inside the installation frame (102). The adjusting screw (104) is threadedly connected to the lifting rod (103). A telescopic rod (105) is slidably connected inside the lifting rod (103). An insulating pad (106) is fixedly connected to the telescopic rod (105). A fixing bolt (107) is threadedly connected inside the lifting rod (103). The fixing bolt (107) cooperates with the telescopic rod (105). A locking component for locking the cabinet door (101) is provided on the warning plate (108).

2. The low-voltage power distribution switchgear according to claim 1, characterized in that, The locking assembly includes a lock plate (110) fixedly connected to the warning plate (108), at least three bolts (111) fixedly connected above the lock plate (110), and a through groove (112) corresponding to the bolts (111) is provided above the cabinet door (101), and a lock (113) is installed at one end of the bolts (111) passing through the through groove (112).

3. A low-voltage power distribution switchgear according to claim 1, characterized in that, The cabinet door (101) has a viewing groove (120) and a first transparent plate is installed on the viewing groove (120). The cabinet body (100) has an observation groove (121) on one side and a second transparent plate is installed on the observation groove (121).

4. A low-voltage power distribution switchgear according to claim 1, characterized in that, The cabinet door (101) is provided with a pair of sliding grooves (122), and a handle frame (123) is slidably connected to the two sliding grooves (122). The handle frame (123) is fixedly connected to the warning plate (108).

5. A low-voltage power distribution switchgear according to claim 1, characterized in that, An open rack (130) is fixedly connected inside the cabinet (100).

6. A low-voltage power distribution switchgear according to claim 1, characterized in that, A rain shield (131) is fixedly connected to the top of the cabinet (100).

Images