Looped network box with box door anti-falling function

Abstract

The utility model belongs to the technical field of ring main units, and particularly relates to a ring main unit with a box door anti-falling function, which comprises a box body, a box door and a doorsill, the rolling piece is rotatably mounted on the supporting frame; the box door is also provided with an abutting member, and the abutting member comprises a fixed part which is installed on the box door; the arc-shaped guide part is integrally connected to the fixing part; in the process that the box door rotates to seal the box body, the arc-shaped guide part firstly makes contact with the surface of the rolling piece and pushes the rolling piece to rotate; after the box door is closed, the fixing part is located above the rolling piece and abuts against the rolling piece. The beneficial effects of the utility model are that a gap at the hinged part of the box door is compensated to a certain extent by utilizing the clinging and abutting between the fixed part and the rolling element, the box door is prevented from shifting up and down, and when the box door is used in a standing state, upward thrust can be applied to the box door to prevent the box door from falling down.

Description

Technical Field

[0001] This utility model belongs to the field of ring network box technology, and in particular relates to a ring network box with a door anti-fall function. Background Technology

[0002] A ring main unit, also known as a ring network high-voltage switchgear, is a combination of high-voltage switching electrical equipment used in a ring network power supply system. With the development of urban power distribution, ring main units often need to be installed at outdoor load centers, thus requiring a "protective cover," which led to the development of ring main boxes.

[0003] Currently, the installation of ring main units at outdoor load centers typically requires transportation by vehicle, which inevitably involves vibration and shaking during transport. Since the ring main unit doors are usually hinged to the unit body, and a certain gap is often left at the hinge point to facilitate the opening and closing of the doors, this gap causes the doors to easily shift vertically due to vibration during transportation, resulting in bumps, wear, and noise. Furthermore, when the ring main unit is stationary, the doors may tilt downwards due to their own weight, causing the door to collide and wear against the threshold of the unit body. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a ring network box with an anti-fall function for the box door, thereby solving the above-mentioned technical problems.

[0005] In view of this, the present invention provides a ring network box with a door anti-fall function, including a box body, a door, and a threshold. The threshold is disposed on the box body, the door is hinged to the box body, and the box body is also provided with a limiting component, which includes:

[0006] Support frame, which is installed on the threshold;

[0007] Rolling element, which is rotatably mounted on the support frame;

[0008] The door is also equipped with a stop, which includes:

[0009] The fixing part is installed on the door of the box;

[0010] The arc-shaped guide part is integrally connected to the fixing part;

[0011] During the process of the box door rotating to seal the box body, the arc-shaped guide part first contacts the surface of the rolling element and pushes the rolling element to rotate; when the box door is closed, the fixing part is located above the rolling element and abuts against the rolling element.

[0012] Furthermore, the fixing part has an "L"-shaped structure, and the fixing part includes:

[0013] The connecting section is used to connect and fix it to the cabinet door;

[0014] The abutment section is used to abut against the rolling elements;

[0015] The arc-shaped guide section is integrally connected to the abutment section.

[0016] Furthermore, the fixing part also includes:

[0017] Fixed ribs are integrally connected to both sides of the abutment section.

[0018] Furthermore, the cabinet door also includes:

[0019] The mounting bracket is integrally connected to the cabinet door, and the connecting section is connected to the mounting bracket by fasteners.

[0020] Furthermore, the rolling element is a roller.

[0021] Furthermore, the roller surface is provided with a rubber sleeve.

[0022] Furthermore, the support frame is fixed to the threshold by fasteners.

[0023] The beneficial effects of this utility model are:

[0024] By utilizing the tight contact between the fixed part and the rolling element, an upward thrust can be applied to the door, which can compensate for the gap at the hinge of the door and prevent the door from shifting up and down during movement, thereby reducing the impact wear and vibration caused by the door vibration; when the ring mesh box is in static use, the upward thrust applied to the door by the rolling element can also prevent the door from falling down.

[0025] By utilizing the arc-shaped contact surface of the arc-shaped guide part to make tight contact with the rolling element, the movement of the fixed part is guided, so that the fixed part and the rolling element make rolling contact. This can effectively reduce the wear generated during the process of the fixed part moving above the rolling element, thereby improving the service life of the fixed part. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of the ring mesh cage of this utility model;

[0027] Figure 2 This is a utility model Figure 1 Schematic diagram of the inner structure at point A;

[0028] The markings in the diagram are as follows: 1. Door; 11. Fixing frame; 2. Threshold; 3. Support frame; 4. Rolling element; 5. Abutting element; 51. Arc-shaped guide; 52. Connecting section; 53. Abutting section; 54. Fixing rib. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. 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.

[0030] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] Example 1:

[0032] This embodiment provides a ring main unit with a door anti-fall function, including a box body, a door 1, and a threshold 2. The threshold 2 is disposed on the box body, and the door 1 is hinged to the box body. The box body is also provided with a limiting component, which includes:

[0033] Support frame 3 is installed on sill 2;

[0034] Rolling element 4 is rotatably mounted on support frame 3;

[0035] The door 1 is also provided with an abutment 5, which includes:

[0036] The fixing part is installed on the door 1;

[0037] The arc-shaped guide part 51 is integrally connected to the fixing part;

[0038] During the process of the door 1 rotating to seal the box body, the arc-shaped guide part 51 first contacts the surface of the rolling element 4 and pushes the rolling element 4 to rotate; when the door 1 is closed, the fixing part is located above the rolling element 4 and abuts against the rolling element 4.

[0039] In this technical solution, when the door 1 is closed, it moves closer to the box body, and the fixing part rotates along with the door 1, causing the arc-shaped guide part 51 to rotate as well. When the arc-shaped guide part 51 contacts the rolling element 4, as the door 1 rotates further, the arc-shaped guide part 51 will cause the rolling element 4 to rotate due to friction, and the rotation of the rolling element 4 will also pull the abutment part 5 to move. When the door 1 moves above the threshold 2, completely sealing the opening of the box body, the fixing part of the abutment part 5 will also move above the rolling element 4 and abut tightly against the rolling element 4.

[0040] By utilizing the tight contact between the fixed part and the rolling element 4, an upward pushing force can be applied to the door 1, which can compensate for the gap at the hinge of the door 1 and prevent the door 1 from shifting up and down during movement, thereby reducing the impact wear and vibration caused by the vibration of the door 1; when the ring mesh box is in static use, the upward pushing force applied to the door 1 by the rolling element 4 can also prevent the door 1 from falling.

[0041] In addition, by using the arc-shaped contact surface of the arc-shaped guide part 51 to make tight contact with the rolling element 4 to guide the movement of the fixed part, the fixed part and the rolling element 4 are in rolling contact, which can effectively reduce the wear generated during the process of the fixed part moving above the rolling element 4, thereby improving the service life of the fixed part.

[0042] The rolling element 4 can be a swivel ball structure. By setting the swivel ball on the support frame 3, it provides traction for the movement of the abutment 5 and also provides upward support. Preferably, the rolling element 4 is a roller. On the one hand, rollers do not have omnidirectional rotation, which makes their traction and guidance of the abutment 5 more stable; on the other hand, the contact between the roller and the abutment 5 is a line-to-surface contact, which provides a more stable support effect compared to the point-to-surface contact between the swivel ball and the abutment 5. Furthermore, a rubber sleeve is provided on the surface of the roller. The rubber sleeve effectively reduces the frictional wear of the roller and improves its service life.

[0043] Furthermore, the support frame 3 is fixed to the threshold 2 by fasteners. The support frame 3 and the threshold 2 are designed to be detachably connected, which facilitates product manufacturing, effectively reduces design and manufacturing difficulty and production process input, and results in higher economic benefits.

[0044] Example 2:

[0045] This embodiment provides a ring network box with anti-fall function for the box door. In addition to the technical solution of the above embodiment, it also has the following technical features.

[0046] Furthermore, the fixing part has an "L"-shaped structure, and the fixing part includes:

[0047] Connecting section 52 is used to connect and fix with the box door 1;

[0048] The abutting section 53 is used to abut against the rolling element 4;

[0049] The arc-shaped guide section 51 is integrally connected to the abutment section 53.

[0050] Furthermore, the fixing part also includes:

[0051] Fixed rib 54 is integrally connected to both sides of the abutment section 53.

[0052] In this technical solution, the fixing part is set as an "L" shaped structure. The vertical part of the fixing part is the connecting section 52 for connecting with the door 1. It can be an integral connection or a connection by setting fasteners. Preferably, the connection is made by setting fasteners, which allows the abutment part 5 to be disassembled and replaced, which is convenient for maintenance.

[0053] The horizontal part of the fixed part is the abutment section 53, which abuts against the rolling element 4. Two integral fixed ribs 54 are provided on both sides of the abutment section 53. If the abutment section 53 undergoes large bending deformation due to abutting against the rolling element 4, the fixed ribs 54 will abut against the connecting section 52 to prevent the abutment section 53 from bending and approaching the connecting section 52, thereby improving the structural stability and ensuring that the rolling element 4 can stably apply an upward supporting force to the abutment section 53, thus playing the role of preventing the door 1 from falling.

[0054] Furthermore, the door 1 also includes a fixing frame 11, which is integrally connected to the door 1, and the connecting section 52 is connected to the fixing frame 11 by fasteners. With this structural design, there is no need to open mounting holes on the door 1, ensuring that the abutment 5 can be detachably connected to the door 1 while also ensuring that the structural strength of the door 1 is not affected.

[0055] Example 3:

[0056] This embodiment provides a ring network box with anti-fall function for the box door. In addition to the technical solution of the above embodiment, it also has the following technical features.

[0057] Furthermore, the support frame 3 is fixed to the threshold 2 by fasteners. By also designing the support frame 3 as a detachable connection, it facilitates design and production, and improves economic efficiency.

[0058] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A ring network box with a door anti-fall function, comprising a box body, a door (1) and a threshold (2), wherein the threshold (2) is disposed on the box body, and the door (1) is hinged to the box body, characterized in that, The housing is also provided with a limiting component, which includes: A support frame (3) is mounted on the threshold (2); Rolling element (4), which is rotatably mounted on support frame (3); The door (1) is also provided with an abutment (5), the abutment (5) comprising: A fixing part is installed on the door (1); Arc-shaped guide (51), which is integrally connected to the fixing part; During the process of the door (1) rotating to cover the box body, the arc-shaped guide part (51) first contacts the surface of the rolling element (4) and pushes the rolling element (4) to rotate; when the door (1) is closed, the fixing part is located above the rolling element (4) and abuts against the rolling element (4).

2. A ring network box with anti-fall function for the box door as described in claim 1, characterized in that, The fixing part has an "L"-shaped structure and includes: Connecting section (52), the connecting section (52) is used to connect and fix with the box door (1); The abutting section (53) is used to abut against the rolling element (4); The arc-shaped guide (51) is integrally connected to the abutment section (53).

3. A ring network box with anti-fall function for the box door as described in claim 2, characterized in that, The fixing part also includes: Fixed rib (54) is integrally connected to both sides of the abutment section (53).

4. A ring network box with anti-fall function for the box door as described in claim 2, characterized in that, The cabinet door (1) also includes: The fixing frame (11) is integrally connected to the box door (1), and the connecting section (52) is connected to the fixing frame (11) by setting fasteners.

5. A ring main unit with anti-fall function for the door as described in claim 1, characterized in that, The rolling element (4) is a roller.

6. A ring main unit with anti-fall function for the door as described in claim 5, characterized in that, The roller surface is provided with a rubber sleeve.

7. A ring main unit with anti-fall function for the door as described in claim 1, characterized in that, The support frame (3) is fixed to the threshold (2) by fasteners.

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