Corner-falling-prevention device for door plate of 35kV handcart chamber

Abstract

The utility model discloses a 35kV handcart chamber door plate corner falling prevention device which is arranged on a door plate and a side plate of a handcart chamber and comprises a rolling piece arranged on the door plate and a guide support arranged on the side plate, the guide support is provided with a guide groove in the opening and closing direction of the door plate, and the rolling piece can enter the guide groove. An inclined face used for being connected with the rolling piece in an abutting mode is formed in the guide groove, and the inclined face is arranged in an inclined mode in the vertical direction. The mode that the rolling piece is matched with the guide support is adopted, under the condition that the corner of the door plate has fallen off, the inclined face of the guide support supports and guides the rolling piece, so that in the closing process of the door plate, through upward movement of the rolling piece on the inclined face, the door plate can restore to the state before corner falling, and the door plate is prevented from falling off. Therefore, normal folding between the door plate and the side plate is guaranteed, and subsequent derivative problems caused by irregular folding are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of switch cabinet equipment and relates to a 35kV trolley room door panel anti-corner drop device. Background Art

[0002] In medium-voltage switchgear equipment, according to standards such as "GB3906-2006 3.6kV-40.5kV AC Metal-Enclosed Switchgear and Control Equipment Medium-Voltage Switchgear" and "Notice of State Grid Corporation of China on the Issuance of Eighteen Major Power Grid Accident Prevention Measures (Revised Edition)", the outer widths of 35kV cabinets are set to 1400mm and 1680mm, respectively. This results in larger door panel dimensions (for example, the width of a 1400mm-wide cabinet door is 1305mm x 1785mm). After long-term use or transportation, these large and heavy door panels are prone to fatigue deformation at the movable hinges. This can cause the door panel to misalign with the switchgear side panels and easily cause corner drop. This can further lead to serious interference between the door panel's circuit breaker emergency trip hole / trolley operation hole and the push mechanism's emergency trip / operating screw, making it impossible to properly swing the trolley in and out and emergency opening and closing, among other derivative issues. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a 35kV trolley compartment door panel corner-dropping prevention device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A 35kV trolley room door panel anti-corner drop device is arranged on the door panel and side panel of the trolley room, including a rolling member arranged on the door panel and a guide bracket arranged on the side panel. The guide bracket is provided with a guide groove for the rolling member to enter along the opening and closing direction of the door panel, and an inclined surface for abutting against the rolling member is formed in the guide groove, and the inclined surface is arranged to be inclined vertically.

[0006] Furthermore, a horizontal surface for supporting the rolling element is provided at the bottom of the guide groove, one end of the inclined surface is connected to the horizontal surface, and the other end is inclined downward.

[0007] Furthermore, the rolling element includes a roller and a roller. The axial ends of the roller are connected to the door panel. The roller is coaxially sleeved on the outer periphery of the roller. The roller can rotate relative to the roller.

[0008] Furthermore, a reinforcing rib plate is provided on the door panel, and the reinforcing rib plate is detachably connected to the door panel. The reinforcing rib plate is provided with a mounting groove for connecting the roller.

[0009] Furthermore, the guide bracket is in an L-shaped structure, one end of the guide bracket is fixedly connected to the side panel, and the other end is arranged toward the door panel.

[0010] In summary, the benefits of the present invention are:

[0011] The utility model adopts the method of cooperating a rolling member and a guide bracket. When a door panel has lost a corner, the inclined surface of the guide bracket supports and guides the rolling member, so that during the closing process, the door panel can be restored to the state before the corner was lost through the upward movement of the rolling member on the inclined surface, thereby ensuring the normal alignment between the door panel and the side panel and avoiding subsequent derivative problems caused by misalignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the door panel and side panels of the present invention.

[0013] Figure 2 for Figure 1 A is an enlarged schematic diagram.

[0014] Figure 3 Schematic diagram of the structure of the guide bracket.

[0015] Figure 4 Schematic diagram of the structure of the roller and the roller.

[0016] Figure 5 It is a structural diagram of the roller and the guide bracket in the coordinated state.

[0017] Markings in the figure: 1. Door panel; 2. Side panel; 3. Guide bracket; 31. Guide groove; 311. Horizontal plane; 312. Inclined plane; 41. Roller; 42. Roller; 5. Reinforcing rib plate; 51. Mounting slot. DETAILED DESCRIPTION

[0018] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0019] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed arbitrarily, and the component layout type may also be more complicated.

[0020] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0021] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the perpendicular relationship may actually be an approximately perpendicular relationship.

[0022] The utility model provides a 35kV trolley room door panel anti-corner drop device, which is mainly used between adjacent movably connected cabinet panels in switch cabinet equipment, especially in the connection part of the door panel 1 and the side panel 2. When the connecting parts between the door panel 1 and the side panel 2 produce fatigue deformation due to long-term use, resulting in the door panel 1 and the side panel 2 not being aligned properly and opening and closing abnormally, the anti-corner drop device is used to assist in ensuring that the door panel 1 and the side panel 2 return to the normal opening and closing position, so as to ensure that the trolley can be shaken in and out normally and the switch can be opened and closed in an emergency.

[0023] Reference Figure 1 The anti-corner-dropping device includes a guide bracket 3, a roller 41 and a roller 42. The roller 41 and the roller 42 are arranged on the door panel 1 and on the opposite side of the door panel 1 on which the hinge shaft is arranged. The guide bracket 3 is arranged on the side panel 2 opposite to the roller 42 and the roller 41 when the door panel 1 is closed, so that when the door panel 1 is closed toward the side panel 2, the roller 42 and the roller 41 cooperate with the guide bracket 3 and guide the door panel 1 to return to a normal opening and closing position.

[0024] Reference Figure 2 and Figure 4 Two mounting grooves 51 are provided on the door panel 1, so that the two ends of the roller 41 in the axial direction are fixed in the two mounting grooves 51 respectively, so that the roller 41 is fixed to the door panel 1, and the roller 42 is a hollow cylindrical structure. The roller 42 is coaxially arranged on the outer periphery of the roller 41, so that the roller 42 can rotate relative to the roller 41, and the two mounting grooves 51 press against the roller 42 on both sides of the axial direction to prevent it from axially dislodging.

[0025] In this embodiment, preferably, a reinforcing rib plate 5 is further provided, and the reinforcing rib plate 5 is a sheet metal part. The reinforcing rib plate 5 and the door panel 1 are detachably provided. By providing connecting holes on the reinforcing rib plate 5 and the door panel 1, the reinforcing rib plate 5 and the door panel 1 can be fixedly connected by means of bolts passing through the connecting holes. The mounting groove 51 is provided on the reinforcing rib plate 5, so that the roller 41 and the roller 42 are provided on the reinforcing rib plate 5, so that the anti-corner drop device with the roller 42 and the roller 41 can be selectively and more conveniently and quickly disassembled and installed with door panels 1 of various specifications and models.

[0026] Reference Figure 2 and Figure 3 The guide bracket 3 is a sheet metal part, which is bent in an L shape. One part of the guide bracket 3 is fitted on the inner wall of the side panel 2, and bolts are passed through the guide bracket 3 and the side panel 2 at the same time to fix the guide bracket 3. The other part of the guide bracket 3 passes through the side panel 2 and is provided with a guide groove 31. One end of the guide groove 31 is an opening connected to the edge of the guide bracket 3. Preferably, the guide groove 31 is opened deep into the guide bracket 3 along the opening and closing direction of the door panel 1, and the axis of the roller 42 and the roller 41 is set horizontally and perpendicular to the opening and closing direction of the door panel 1, so that when the door panel 1 is closed, the roller 42 and the roller 41 can enter and penetrate into the guide groove 31.

[0027] Reference Figure 5 A supporting surface is formed at the bottom of the guide groove 31 for abutting against and providing support for the roller 42. The supporting surface includes a connected horizontal surface 311 and an inclined surface 312. The horizontal surface 311 is located deep in the guide groove 31, and the inclined surface 312 is connected to the opening of the guide groove 31. The inclined surface 312 is inclined downward relative to the horizontal surface 311, thereby expanding the opening range of the guide groove 31.

[0028] When the connection of the door panel 1 is abnormal and causes the corner to fall, the side of the door panel 1 that is opened and closed usually falls to a certain extent, causing the side of the door panel 1 to be misaligned with the side panel 2. In this case, when the door panel 1 is closed, the door panel 1 drives the roller 41 and the roller 42 to approach the guide bracket 3. Due to the falling of the door panel 1, the roller 42 first contacts the inclined surface 312 and continues to push the door panel 1 closed. The inclined surface 312 guides the roller 42, guiding the roller 42 to slide up along the inclined surface 312, and the rolling cooperation between the roller 42 and the roller 41 makes the sliding process more labor-saving and smooth. The sliding of the roller 42 synchronously guides the door panel 1 to lift up on this side until the roller 42 slides to fall on the horizontal surface 311. At this time, the side of the door panel 1 is completely restored to the normal opening and closing height, thereby being able to achieve stable alignment with the side panel 2 to prevent corner falling.

[0029] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A 35kV trolley room door panel anti-corner drop device, arranged on the door panel (1) and side panel (2) of the trolley room, characterized in that: The invention comprises a rolling member arranged on a door panel (1) and a guide bracket (3) arranged on a side panel (2); the guide bracket (3) is provided with a guide groove (31) for the rolling member to enter along the opening and closing direction of the door panel (1); an inclined surface (312) for contacting the rolling member is formed in the guide groove (31); and the inclined surface (312) is arranged to be inclined in the vertical direction.

2. A 35kV handcart room door panel anti-corner drop device according to claim 1, characterized in that: The bottom of the guide groove (31) is also provided with a horizontal surface (311) for supporting the rolling element. One end of the inclined surface (312) is connected to the horizontal surface (311), and the other end is inclined downward.

3. A 35kV handcart room door panel anti-corner drop device according to claim 1, characterized in that: The rolling element comprises a roller (41) and a roller (42); the axial ends of the roller (41) are connected to the door panel (1); the roller (42) is coaxially sleeved on the outer periphery of the roller (41); and the roller (42) can rotate relative to the roller (41).

4. A 35kV handcart room door panel anti-corner drop device according to claim 3, characterized in that: The door panel (1) is further provided with a reinforcing rib plate (5), the reinforcing rib plate (5) and the door panel (1) are detachably connected, and the reinforcing rib plate (5) is provided with a mounting groove (51) for connecting the roller (41).

5. A 35kV handcart room door panel anti-corner drop device according to claim 1, characterized in that: The guide bracket (3) is in an L-shaped structure, one end of the guide bracket (3) is fixedly connected to the side panel (2), and the other end is arranged toward the door panel (1).

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