Cabinet door for preventing operating rod from drooping and low-voltage cabinet

Abstract

The utility model relates to the field of components of switch devices, in particular to a cabinet door for preventing an operating rod from drooping and a low-voltage cabinet. The cabinet door capable of preventing the operating rod from drooping and the low-voltage cabinet are used for solving the problems that after the operating rod of a switch device extends out of the switch device, the overhanging end droops, and when the cabinet door is closed, the operating rod cannot be aligned with the operating hole of the cabinet door, so that the cabinet door is difficult to close. The cabinet door capable of preventing the operating rod from drooping comprises a door body, the door body is provided with an operating hole for the operating rod to pass through, and the door body is provided with a guide bearing piece which is matched with the end portion of the operating rod to guide the operating rod to enable the end portion of the operating rod to enter the operating hole when the door is closed. The operating rod is supported and guided by arranging the guiding bearing piece, so that when the cabinet door is closed, the operating rod can enter the operating hole accurately in a guiding mode, the operating rod is prevented from impacting the inner side of the cabinet door when the cabinet door is closed, and the door closing operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the field of components of a switch device, in particular to a cabinet door and a low-voltage cabinet for preventing an operating rod from sagging. Background Technique

[0002] Low-voltage switch cabinets are very widely used in the power consumption field, such as in power plants, photovoltaic power generation, chemical industries, etc., for power generation, power transmission, power distribution and power conversion. The main components inside the cabinet include circuit breakers, disconnectors, current transformers and various protection and control devices, etc. Structurally, they are divided into fixed type and draw-out type.

[0003] In a low-voltage switch cabinet, for the convenience of operation, the operating rods of some disconnectors or circuit breakers will extend outside the switch cabinet. Therefore, an operation hole will be opened at the corresponding position of the door body. Outside the cabinet, the operating handle rotates the operating rod of the disconnector or circuit breaker through the operation hole on the door body to control the opening and closing of the disconnector or circuit breaker. Since the operating rod is only fixed at one end on the switch device and has a certain distance to the cabinet door, the operating rod will sag to varying degrees after extending from the switch device body, resulting in the deviation of the position of the other end of the operating rod from the operation hole of the cabinet door. When the cabinet door moves from the open state to the closed state, the operating rod cannot align with the operation hole, and it is easy to hit the inner side of the cabinet door, making it difficult to close the cabinet door. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cabinet door for preventing an operating rod from sagging, so as to solve the problem in the prior art that the overhanging end of the operating rod of the switch device sags after extending out of the switch device, and the operating rod cannot align with the operation hole of the cabinet door when the cabinet door is closed, making it difficult to close the cabinet door. The purpose of the utility model is also to provide a low-voltage cabinet, so as to solve the problem in the prior art that the overhanging end of the operating rod of the switch device sags after extending out of the switch device, and the operating rod cannot align with the operation hole of the cabinet door when the cabinet door is closed, making it difficult to close the cabinet door.

[0005] A cabinet door for preventing an operating rod from sagging according to the utility model includes a door body, an operation hole is opened on the door body for the operating rod to pass through, and a guiding and supporting member is installed on the door body, which cooperates with the end of the operating rod when the door is closed to guide the operating rod so that the end of the operating rod is guided into the operation hole.

[0006] The utility model improves the problem in the prior art that the overhanging end of the operating rod of the switch device sags after extending out of the switch device, and the operating rod cannot align with the operation hole of the cabinet door when the cabinet door is closed, making it difficult to close the cabinet door. By providing a guiding and supporting member for guiding the operating rod so that the end of the operating rod is guided into the operation hole, when the cabinet door is closed, the operating rod can accurately enter the operation hole, avoiding the operating rod hitting the inner side of the cabinet door when the cabinet door is closed, and making the door closing operation simple and convenient.

[0007] Further, the guiding and supporting member is a bent plate including a first bent section and a second bent section. The first bent section is fixedly connected to the door body, and the second bent section extends obliquely downward from the end of the first bent section, and its inclined surface forms a guiding surface for guiding the overhanging end of the operating rod.

[0008] Further, the first bent section and the second bent section form an angular structure with an opening facing downward, and the bent edge of the bent plate is arranged at the same height as the operation hole for supporting the overhanging end of the operating rod.

[0009] Further, one end of the first bent section facing away from the second bent section has a fixed flange, and the guiding and supporting member is attached to the door body through the fixed flange.

[0010] Further, operation handle mounting holes are provided around the operation hole on the door body, and the guiding and supporting member is detachably connected to the door body through a connecting member passing through a connecting hole on the guiding and supporting member and the operation handle mounting hole on the door body.

[0011] A low-voltage cabinet of the present utility model includes a cabinet body, a switching device, and a cabinet door. The operating rod on the switching device extends from the switching device body. The cabinet door includes a door body, and an operation hole is provided on the door body for the operating rod to pass through. A guiding and supporting member is installed on the door body, which cooperates with the end of the operating rod when the door is closed to guide the operating rod so that the end of the operating rod is guided into the operation hole.

[0012] The present utility model aims at the problem in the prior art that the overhanging end of the operating rod of the switching device droops after extending out of the switching device, and when the cabinet door is closed, the operating rod cannot be aligned with the operation hole of the cabinet door, making it difficult to close the cabinet door. By providing a guiding and supporting member for guiding the operating rod so that the end of the operating rod is guided into the operation hole, when closing the cabinet door, the operating rod can accurately enter the operation hole, avoiding the operating rod hitting the inner side of the cabinet door when closing the door, and making the door closing operation simple and convenient.

[0013] Further, the guiding and supporting member is a bent plate including a first bent section and a second bent section. The first bent section is fixedly connected to the door body, and the second bent section extends obliquely downward from the end of the first bent section, and its inclined surface forms a guiding surface for guiding the overhanging end of the operating rod.

[0014] Further, the first bent section and the second bent section form an angular structure with an opening facing downward, and the bent edge of the bent plate is arranged at the same height as the operation hole for supporting the overhanging end of the operating rod.

[0015] Further, one end of the first bent section facing away from the second bent section has a fixed flange, and the guiding and supporting member is attached to the door body through the fixed flange.

[0016] Further, operation handle mounting holes are provided around the operation hole on the door body, and the guiding support member is detachably connected to the door body through a connecting member passing through the connecting hole on the guiding support member and the operation handle mounting hole on the door body. Brief Description of the Drawings

[0017] Figure 1 FIG. is a schematic structural diagram of a switch device, an operating rod and a cabinet door installation for preventing the operating rod from sagging in a low-voltage cabinet according to the present invention;

[0018] Figure 2 FIG. is a schematic structural diagram of a cabinet door for preventing the operating rod from sagging according to the present invention;

[0019] Figure 3 FIG. is a schematic structural diagram of a guiding support member of a cabinet door for preventing the operating rod from sagging according to the present invention;

[0020] Figure 4 FIG. is a schematic structural diagram of a door body of a cabinet door for preventing the operating rod from sagging according to the present invention.

[0021] In the figure: 1. Door body, 11. Operation handle mounting hole, 12. Operation hole, 2. Guiding support member, 21. Connecting hole, 22. First bending section, 23. Second bending section, 3. Switch device, 4. Operating rod. Detailed Embodiment

[0022] In the existing low-voltage switch cabinets, the operating rods of some switch cabinets will extend out of the cabinet, so an operation hole will be opened at the corresponding position of the door body of the switch cabinet. Outside the cabinet, the operating handle passes through the operation hole on the door body to rotate the operating rod of the switch device to control the opening and closing of the switch device. Since the operating rod is only fixed at one end on the switch device and has a certain distance to the cabinet door, the operating rod will sag to varying degrees after extending out of the switch device body, resulting in the deviation of the position of the other end of the operating rod from the operation hole of the cabinet door. When the cabinet door is closed from the open state, the operating rod cannot be aligned with the operation hole, and it is easy to hit the inner side of the cabinet door, making it difficult to close the cabinet door.

[0023] The present invention proposes an improved technical solution for the problems existing in the above technical solutions. The core concept of the present invention is: a guiding support member is installed on the door body, which cooperates with the end of the operating rod when the door is closed to guide the operating rod so that the end of the operating rod is guided into the operation hole. By setting the guiding support member, the operating rod can accurately enter the operation hole, avoiding the operating rod hitting the inner side of the cabinet door when the cabinet door is closed, and making the door closing operation simple and convenient.

[0024] Based on the above inventive concept, a low-voltage cabinet of the present invention includes a cabinet body, a switch device 3 and a cabinet door, as Figure 1As shown, the operating rod 4 on the switch device 3 extends from the main body of the switch device 3. The cabinet door includes a door body 1, and an operating hole 12 as shown in Figure 2 is formed on the door body 1 for the operating rod 4 to pass through. A guiding and supporting member 2 is installed on the door body 1, which cooperates with the end of the operating rod 4 when the door is closed to guide the operating rod 4 so that the end of the operating rod 4 is guided into the operating hole 12. When the door body 1 is closed, the guiding and supporting member 2 on the door body gradually approaches the operating rod 4. When the hanging end of the operating rod in a drooping state touches the guiding and supporting member, the guiding and supporting member can support and guide the end of the operating rod so that the operating rod accurately enters the operating hole, avoiding the operating rod hitting the inner side of the cabinet door due to misalignment between the operating rod and the operating hole, making the door closing operation simple and convenient.

[0025] In this embodiment, the guiding and supporting member 2 is a bent plate including a first bent section 22 and a second bent section 23 as shown in Figure 3 . The first bent section 22 is fixedly connected to the door body 1, and the second bent section 23 extends obliquely downward from the end of the first bent section 22, and its inclined surface forms a guiding surface for guiding the hanging end of the operating rod 4. When the door is closed, the hanging end of the operating rod 4 gradually approaches the second bent section 23 and climbs along the inclined surface of the second bent section to a position at the same height as the operating hole 12 to facilitate the operating rod 4 to enter the operating hole 12. Using the inclined surface of the bent plate to guide the operating rod can make the operating rod accurately enter the operating hole. Moreover, the structure of the bent plate is simple, and the bent plate can be designed and adjusted according to the size of the operating rod and the position of the operating hole to achieve precise guiding of the operating rod without affecting the overall structure of the equipment. In addition, in other embodiments, the guiding and supporting member can be set as a solid structure, such as a cube. The side surface of the cube is installed on the door body, and the upper plane of the cube is close to the lower part of the operating hole and the upper plane is inclined downward to guide and support the operating rod; or the guiding and supporting member can be set as a plate surface, one end of the plate surface is spot-welded at a position close to the lower part of the operating hole, and the other end is inclined downward, as long as it can meet the requirement of supporting and guiding the end of the operating rod so that the operating rod accurately enters the operating hole.

[0026] In this embodiment, the first bending section 22 and the second bending section 23 form an angular structure with the opening facing downward. The bending edge of the bending plate is arranged at the same height as the operation hole 12 for supporting the overhanging end of the operating rod. The bending edge of the bending plate is at the same height as the operation hole and is arranged parallel to the door body. When the door body is closed, the operating rod climbs more gently along the inclined plane and can climb to a position where it is at the same height as the operation hole, making it easier to enter the operation hole. The bending plate in this embodiment has a total of three plate surfaces and the bending shape is trapezoidal. One plate surface at one end of the bending plate is connected to the door body, the middle plate surface is raised relative to the horizontal plane, and the other plate surface is inclined downward. The bending edge formed between the middle plate surface and the downward-inclined plate surface is at the same height as the operation hole. Its structure is simple and it is not easily deformed when supporting the operating rod. In addition, in other embodiments, the middle plate surface of the bending plate with three plate surfaces and a trapezoidal bending shape can be close to the lower part of the operation hole, and the middle plate surface extends horizontally. When the operating rod climbs along the downward-inclined plate surface to the middle plate surface, the operating rod is at the same height as the operation hole to enable the operating rod to accurately enter the operation hole. Of course, in other embodiments, the bending plate can have two plate surfaces, and the bending shape of the two plate surfaces is an acute angle. One plate surface of the bending plate is connected to the corresponding position of the door body, and the other plate surface is inclined downward. Its bending edge is close to the lower part of the operation hole so that the operating rod can directly enter the operation hole by climbing along the downward-inclined plate surface; or one end of the bending plate with two plate surfaces and an acute-angle bending shape is spot-welded to the corresponding position of the door body, its bending edge is arranged at the same height as the operation hole, and the other plate surface is inclined downward so that when the operating rod climbs along the downward-inclined plate surface to the bending edge, the operating rod is at the same height as the operation hole to enable the operating rod to accurately enter the operation hole.

[0027] In this embodiment, one end of the first bending section 22 facing away from the second bending section 23 has a fixed folding edge, and the guiding support 2 is attached to the door body 1 through the fixed folding edge. Setting the fixed folding edge on the first bending section of the guiding support and attaching it to the door body can improve the reliability of the connection between the guiding support and the door body, ensure the inclination angle of the guiding surface, and at the same time make the connection operation between the two simple.

[0028] In this embodiment, around the operation hole 12 on the door body 1, there are Figure 4 shown operation handle mounting holes 11. The operation handle is installed at the corresponding position on the door body through the operation handle mounting holes 11 so that the operation handle can cooperate with the operating rod to realize the opening and closing operation of the switching device. The guiding support 2 is detachably connected to the door body through a connecting piece passing through the connecting hole 21 on the guiding support and the operation handle mounting hole 11 on the door body. There is a connecting hole 21 on the guiding support 2, and on the door body, there is as Figure 4The operation handle mounting holes 11 shown can be detachably connected by bolts. The detachable connection of the guiding and supporting member facilitates inspection and maintenance during the repair process, which helps to ensure the stability and reliability of the guiding and supporting of the guiding and supporting member. In addition, in other embodiments, riveting or welding can also be used, as long as the guiding and supporting member is installed at a position where the operating rod can be guided and supported.

[0029] The specific structure of an embodiment of the cabinet door for preventing the operating rod from sagging in the present utility model is the same as that of the cabinet door described in the embodiment of the low-voltage cabinet, so it will not be described in detail here.

[0030] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. The scope of patent protection of the present utility model is subject to the claims. Any equivalent structural changes made by using the description and drawings of the present utility model should be equally included in the protection scope of the present utility model.

Claims

1. A cabinet door for preventing an operating rod from sagging, comprising a door body, an operating hole is provided on the door body for the operating rod to pass through, and is characterized in that: The door body is provided with a guide support member which cooperates with the end of the operating rod to guide the operating rod when the door is closed so as to guide the end of the operating rod to enter the operating hole.

2. The cabinet door for preventing the operating rod from sagging according to claim 1, characterized in that: The guide support member is a bent plate including a first bent section and a second bent section. The first bent section is fixedly connected to the door body, and the second bent section extends downwardly at an angle from the end of the first bent section. The inclined surface thereof forms a guiding surface for guiding the overhanging end of the operating rod.

3. The cabinet door for preventing the operating rod from sagging according to claim 2, characterized in that: The first bending section and the second bending section form an angular structure with an opening facing downward, and the bending edge of the bending plate is arranged at the same height as the operating hole to support the overhanging end of the operating rod.

4. The cabinet door for preventing the operating rod from sagging according to claim 2, characterized in that: One end of the first bending section facing away from the second bending section has a fixed folding edge, and the guide supporting member is closely connected with the door body through the fixed folding edge.

5. The cabinet door for preventing the operating rod from sagging according to any one of claims 1 to 4, characterized in that: The door body is provided with operating handle mounting holes around the operating hole, and the guide supporting member is detachably connected to the door body through a connecting member passing through the connecting hole on the guide supporting member and the operating handle mounting hole on the door body.

6. A low voltage cabinet, comprising a cabinet body, a switch device and a cabinet door, wherein an operating rod on the switch device extends from the switch device body, and the cabinet door comprises a door body, and an operating hole is provided on the door body for the operating rod to pass through, characterized in that: The door body is provided with a guide support member which cooperates with the end of the operating rod to guide the operating rod when the door is closed so as to guide the end of the operating rod to enter the operating hole.

7. The low voltage cabinet according to claim 6, characterized in that: The guide support member is a bent plate including a first bent section and a second bent section. The first bent section is fixedly connected to the door body, and the second bent section extends downwardly at an angle from the end of the first bent section. The inclined surface thereof forms a guiding surface for guiding the overhanging end of the operating rod.

8. The low voltage cabinet according to claim 7, characterized in that: The first bending section and the second bending section form an angular structure with an opening facing downward, and the bending edge of the bending plate is arranged at the same height as the operating hole to support the overhanging end of the operating rod.

9. The low voltage cabinet according to claim 7, characterized in that: One end of the first bending section facing away from the second bending section has a fixed folding edge, and the guide supporting member is closely connected with the door body through the fixed folding edge.

10. The low voltage cabinet according to any one of claims 6 to 9, characterized in that: The door body is provided with operating handle mounting holes around the operating hole, and the guide supporting member is detachably connected to the door body through a connecting member passing through the connecting hole on the guide supporting member and the operating handle mounting hole on the door body.

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