Panel protection device for switch cabinet and switch cabinet with panel protection device

Abstract

The utility model relates to a panel protection device for a switch cabinet and a switch cabinet with the panel protection device, and the panel protection device comprises a mounting plate which is provided with an avoiding hole penetrating along the thickness direction and first connecting holes arranged at intervals relative to the avoiding hole; the movable plate is arranged on the thickness direction side of the mounting plate in an attached mode and constructed to be capable of covering the avoiding hole, and a second connecting hole which penetrates in the thickness direction and communicates with the first connecting hole is further formed in the movable plate; the connecting part comprises a fastening piece and an elastic piece, the fastening piece penetrates through the first connecting hole and the second connecting hole to connect the mounting plate and the movable plate together, the elastic piece is connected to the fastening piece in a sleeving mode and is clamped between the fastening piece and the mounting plate in the thickness direction, and therefore the movable plate can be kept static relative to the mounting plate when being subjected to external force lower than a preset threshold value; and when external force not lower than a preset threshold value is applied, the elastic piece can overcome the acting force of the elastic piece to rotate around the fastening piece relative to the mounting plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical equipment technical field especially relates to panel protection device for switch cabinet and switch cabinet with it. BACKGROUND

[0002] Switch cabinet such as power distribution cabinet or transformer cabinet is widely used in power plant, transformer substation, industrial and mining enterprises and residential area and various occasions because of its high safety and compact structure, which can include cabinet body and various mechanical components and electrical components arranged in the cabinet body, such as circuit breaker, isolation load switch and grounding switch. The panel of the cabinet body can be provided with an operating hole to attach an operating component to cooperate with the mechanical components or electrical components in the cabinet body to perform a specific operation, for example, attaching a crank to control the handcart type circuit breaker in the cabinet body to switch between different stations. Therefore, the cabinet panel usually needs to be provided with a protective device such as a cover plate that can move relative to the operating hole to cover the operating hole or expose the operating hole as needed. However, the protective device in the prior art has the defects of inconvenient operation and low protection level.

[0003] Therefore, there is a need in the art for a protective device that is easy to operate and has a high protection level. SUMMARY

[0004] The utility model aims at providing a panel protection device for switch cabinet which can at least solve part of the above problems.

[0005] The utility model also aims at providing a switch cabinet applying the improved panel protection device.

[0006] According to one aspect of the utility model, a panel protection device for switch cabinet is provided, which comprises: a mounting plate provided with an avoiding hole penetrating through in the thickness direction and a first connecting hole arranged in the thickness direction side of the mounting plate and spaced from the avoiding hole; a movable plate arranged in the thickness direction side of the mounting plate and configured to cover the avoiding hole, the movable plate is further provided with a second connecting hole penetrating through in the thickness direction and communicating with the first connecting hole; a connecting component comprising a fastener penetrating through the first connecting hole and the second connecting hole to connect the mounting plate and the movable plate together, and an elastic member sleeved to the fastener and clamped between the fastener and the mounting plate in the thickness direction, so that the movable plate can remain stationary relative to the mounting plate when subjected to an external force below a predetermined threshold, and can rotate relative to the mounting plate around the fastener against the force of the elastic member when subjected to an external force not lower than the predetermined threshold.

[0007] Compared with the prior art, the installation plate and the movable plate in the panel protection device are fixed through the connecting component including the fastener and the elastic member, so that the force of the elastic member can adjust the fastening pressure of the movable plate relative to the installation plate. Thus, the movable plate needs to be subjected to an external force not lower than a predetermined threshold value to overcome the force of the elastic member to flexibly rotate relative to the installation plate, and can be kept stationary relative to the installation plate after the external force is removed, so that the operator can control the movable plate to be kept in the desired position, which greatly improves the operation convenience of the panel protection device.

[0008] Preferably, the fastener includes a connecting rod with a head portion and a rod portion and a locking sleeve threadedly engaged to the rod portion of the connecting rod, and the elastic member is clamped between the head portion of the connecting rod and the installation plate.

[0009] Preferably, the rod portion of the connecting rod includes a first connecting segment adjacent to the head portion of the connecting rod and a second connecting segment located on the other side of the first connecting segment relative to the head portion of the connecting rod, the outer periphery of the first connecting segment is outwardly expanded relative to the outer periphery of the second connecting segment, and the elastic member is sleeved on the first connecting segment.

[0010] Preferably, the second connecting segment is provided with a threaded structure for threadedly engaging with the locking sleeve at the outer periphery of the portion away from the first connecting segment.

[0011] Preferably, the head portion of the connecting rod is configured in a cylindrical shape, wherein the top surface of the cylindrical shape is smoothly transitioned with the side surface.

[0012] Preferably, the peripheral side of the installation plate is provided with a lock fitting plate extending along the thickness direction to beyond the movable plate towards the movable plate, and the lock fitting plate is provided with a first fitting hole; the peripheral side of the movable plate is provided with a push plate extending away from the installation plate along the thickness direction, the push plate can be aligned with the lock fitting plate when the movable plate covers the avoiding hole, and the push plate is provided with a second fitting hole in communication with the first fitting hole when the push plate is aligned with the lock fitting plate; the panel protection device further includes a padlock configured to pass through the first fitting hole and the second fitting hole to lock the movable plate and the installation plate together.

[0013] Preferably, the installation plate is further provided with a limiting hole penetrating through along the thickness direction and located downstream of the lock fitting plate in the direction that the movable plate rotates relative to the installation plate to cover the avoiding hole; the panel protection device further includes a limiting member passing through the limiting hole to limit the movable plate from excessively rotating when covering the avoiding hole relative to the installation plate.

[0014] Preferably, the external force of the predetermined threshold value is designed to be 1 Newton.

[0015] Preferably, the outer surfaces of the mounting plate and the movable plate are designed as mirror surfaces.

[0016] According to another aspect of the present application, there is also provided a switchgear cabinet comprising the aforementioned panel protection device.

[0017] Some of the other features and advantages of the present application will become apparent from the specification, and from the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The embodiments of the present application will be described in detail below with reference to the drawings, in which:

[0019] Figure 1 is an exploded perspective view of the panel protection device for a switchgear cabinet according to an embodiment of the present application in a first mounted state;

[0020] Figure 2 is an exploded perspective view of the panel protection device for a switchgear cabinet according to an embodiment of the present application in a second mounted state;

[0021] Figure 3 is a perspective view of a mounting plate of the panel protection device for a switchgear cabinet according to an embodiment of the present application;

[0022] Figure 4 is a perspective view of a movable plate of the panel protection device for a switchgear cabinet according to an embodiment of the present application;

[0023] Figure 5 is a perspective view of a connecting rod of the panel protection device for a switchgear cabinet according to an embodiment of the present application;

[0024] Figure 6 is a perspective view of a limiting member of the panel protection device for a switchgear cabinet according to an embodiment of the present application;

[0025] Figure 7 is a perspective view of a resilient member of the panel protection device for a switchgear cabinet according to an embodiment of the present application.

[0026] Explanation of reference signs: 100-panel protection device; 10-mounting plate; 11-first main body part; 111-avoidance hole; 12-first connecting plate; 13-first connecting hole; 14-lock assembly plate; 15-first assembly hole; 16-limiting plate; 17-limiting hole; 20-moving plate; 21-second main body part; 22-second connecting plate; 23-second connecting hole; 24-pushing plate; 25-second assembly hole; 26-identification area; 30-connecting component; 31-fastener; 32-elastic member; 33-connecting rod; 331-head part; 332-rod part; 332a-first connecting section; 332b-second connecting section; 333c-thread structure; 34-locking sleeve; 40-limiting member. DETAILED DESCRIPTION

[0027] With reference to the drawings, the schematic scheme of the panel protection device for switch cabinet disclosed by the utility model will be described in detail. Although the drawings are provided to present some embodiments of the utility model, the drawings are not necessarily drawn according to the size of the specific implementation scheme, and some features can be enlarged, removed or partially cut to better show and explain the disclosure of the utility model. Some components in the drawings can be adjusted in position according to actual needs without affecting the technical effects. The phrase "in the drawings" or similar terms appearing in the specification do not necessarily refer to all drawings or examples.

[0028] In the following, some directional terms used to describe the drawings, such as "in", "out", "up", "down" and other directional terms, will be understood to have their normal meanings and refer to those directions involved when looking at the drawings normally. Unless otherwise specified, the directional terms described in the specification are basically in the conventional direction as understood by those skilled in the art.

[0029] The terms "first", "the first", "second", "the second" and similar terms used in the utility model do not represent any order, quantity or importance in the utility model, but are used to distinguish one component from other components.

[0030] The terms "joint", "connection" and similar terms used in the utility model include both indirect connection of two components by means of an intermediate layer such as adhesive, welding agent, etc. or intermediate parts such as connecting parts, transition parts, etc. and direct connection of two components without any intermediate layer such as adhesive, welding agent, etc. or intermediate parts such as connecting parts, transition parts, etc.

[0031] Figures 1 to 7The panel protection device 100 of the utility model is shown by way of example, the panel protection device 100 in the example can be used to install to the operating hole of the operating panel of switch cabinet, so that operating personnel operate panel protection device 100 as required to expose the operating hole and cover the operating hole. It can be understood that the operating hole of the operating panel of the switch cabinet described herein is those familiar to those skilled in the art, and therefore will not be repeated here.

[0032] As shown in Figure 1 and Figure 2 The panel protection device 100 can include a mounting plate 10, a movable plate 20 and a connecting component 30.

[0033] Specifically, the operating panel of the switch cabinet is usually the side panel of the switch cabinet, such as the front panel, and the front panel can be provided with an operating hole penetrating in the front-rear direction. The mounting plate 10 can be attached to the operating hole of the front panel, and the mounting plate 10 can be provided with a clearance hole 111 penetrating in the thickness direction, i.e., in the front-rear direction, and the clearance hole 111 is designed to surround the operating hole in shape and size to allow external operating parts to pass through the clearance hole 111 into the operating hole and connect with the corresponding components in the switch cabinet.

[0034] The movable plate 20 can be attached to the mounting plate 10 away from the thickness direction of the front panel, i.e., the front side of the front panel, and the movable plate 20 is designed in shape and size to cover the operating hole to prevent misoperation on various components in the switch cabinet and prevent foreign matter from entering. Preferably, the mounting plate 10 and the movable plate 20 can be made of stainless steel and treated using an electro-polishing process, so that the outer surfaces of the mounting plate 10 and the movable plate 20 can be designed as mirror surfaces, which not only makes the panel protection device 100 of the utility model have an attractive appearance, but also reduces the gap between the mounting plate 10 and the movable plate 20 attached together, thereby further improving the anti-foreign matter effect of the panel protection device 100 of the utility model.

[0035] Mounting plate 10 may include a first main body 11 generally designed as an annular shape and a first connecting plate 12 extending radially outward from the periphery of the first main body 11. The first main body 11 has a centrally located clearance hole 111 extending through the thickness direction, and the first connecting plate 12 has a first connecting hole 13 extending through the thickness direction. Similarly, movable plate 20 may include a second main body 21 generally designed as a circular plate and a second connecting plate 22 extending radially outward from the periphery of the second main body 21. The outer contour of the second main body 21 generally matches the outer contour of the first main body 11, and the second connecting plate 22 has a second connecting hole 23 extending through the thickness direction. Thus, movable plate 20 can be aligned with mounting plate 10, such that the second main body 21 is aligned with the first main body 11, and the second connecting plate 22 is aligned with the first connecting plate 12, allowing the second connecting hole 23 to communicate with the first connecting hole 13. This not only allows the clearance hole 111 on mounting plate 10 to be covered by movable plate 20, but also improves the overall appearance.

[0036] The connecting component 30 may include a fastener 31 and an elastic element 32. The fastener 31 can be fastened to the front panel through the first connecting hole 13 and the second connecting hole 23 when the movable plate 20 is aligned with the mounting plate 10. The elastic element 32 may be constructed as an open spring coil and can be sleeved onto the fastener 31 and clamped between the fastener 31 and the mounting plate 10 in the thickness direction, i.e., the front-to-back direction. In this way, the movable plate 20 and the mounting plate 10 are fastened to the front panel via the fastener 31 and the elastic element 32, and the movable plate 20 can rotate relative to the mounting plate 10 about the fastener 31 under the action of an external force, for example, from a state where the movable plate 20 is fully aligned with the mounting plate 10 along... Figure 1 Rotate clockwise as shown Figure 1 In the first installation state shown, the movable plate 20 is not aligned with the mounting plate 10, but the movable plate 20 still covers the clearance hole 111. The movable plate 20 can continue to move under the action of external force. Figure 1 The first installation state shown is along Figure 2 Rotate clockwise as shown Figure 2 The second installation state is shown, in which the clearance hole 111 is exposed.

[0037] Importantly, the elastic member 32 is clamped between the movable plate 20 and the fastener 31 in the thickness direction, that is, the movable plate 20 is clamped between the elastic member 32 and the mounting plate 10 in the thickness direction, thus, the movable plate 20 is clamped between the elastic member 32 and the mounting plate 10 and cannot move, that is, remains stationary relative to the mounting plate 10 when subjected to an external force below a predetermined threshold value; the movable plate 20 can rotate relative to the mounting plate 10 about the fastener 31 against the force of the elastic member 32 when subjected to an external force not lower than the predetermined threshold value. Preferably, the predetermined threshold value of the external force can be designed as 1 Newton to avoid the movable plate 20 from rotating relative to the mounting plate 10 due to accidental factors such as insects, thereby ensuring that the panel protection device 100 in the utility model can meet the IP4X protection level.

[0038] In this way, when the operator removes the finger or other tool from the movable plate 20, the movable plate 20 remains at the position to which it has moved relative to the mounting plate 10, for example, it can remain in the first installation state when rotated from the fully aligned state to the first installation state, and it can remain in the second installation state when rotated from the first installation state to the second installation state, which can greatly improve the operational convenience of the panel protection device 100 in the utility model.

[0039] Optionally, in combination with Figure 5 and Figure 6 As shown, the fastener 31 can include a connecting rod 33 and a locking sleeve 34, and the connecting rod 33 can include a head portion 331 and a rod portion 332. The rod portion 332 of the connecting rod 33 moves from the side of the movable plate 20 facing away from the mounting plate 10, that is, the front side of the movable plate 20, towards the movable plate 20, thereby passing through the first connecting hole 13 and the second connecting hole 23 and the corresponding connecting holes on the front panel. The locking sleeve 34 is threadedly engaged with the portion of the rod portion 332 of the connecting rod 33 passing through the front panel, as the locking sleeve 34 is screwed into the rod portion 332 of the connecting rod 33, the head portion 331 of the connecting plate moves towards the movable plate 20 until the elastic member 32 is compressed between the head portion 331 of the connecting plate and the movable plate 20 to the desired extent. Obviously, the compression amount of the elastic member 32 depends on the screwing depth of the locking sleeve 34 relative to the rod portion 332 of the connecting rod 33, thus, the size of the predetermined threshold value of the external force by which the movable plate 20 can move relative to the mounting plate 10 can be adjusted by the screwing depth of the locking sleeve 34 relative to the rod portion 332 of the connecting rod 33.

[0040] Optionally, in combination with Figures 3 to 5 As shown, the diameter of the first connecting hole 13 on the mounting plate 10 is smaller than the diameter of the second connecting hole 23 on the movable plate 20, when the first main body portion 11 of the mounting plate 10 is aligned with the second main body portion 21 of the movable plate 20, the first connecting plate 12 of the mounting plate 10 is aligned with the second connecting plate 22 of the movable plate 20, and the first connecting hole 13 and the second connecting hole 23 are arranged concentrically.

[0041] Accordingly, the rod portion 332 of the connecting rod 33 can include a first connecting segment 332a located at the rear side of the head portion 331 of the connecting rod 33 and a second connecting segment 332b located at the rear side of the first connecting segment 332a in the front-rear direction. The first connecting segment 332a and the second connecting segment 332b are both configured as a cylindrical structure, and the outer diameter of the first connecting segment 332a is greater than the outer diameter of the second connecting segment 332b. When the rod portion 332 of the connecting rod 33 passes through the first connecting hole 13 and the second connecting hole 23, the first connecting segment 332a is adapted to be located within the second connecting hole 23, and the second connecting segment 332b is adapted to be located within the first connecting hole 13 and to pass out of the first connecting hole 13. In this way, this arrangement can facilitate the insertion of the rod portion 332 of the connecting rod 33 into the second connecting hole 23 and the first connecting hole 13, and can improve the stability of the rotation of the movable plate 20 relative to the mounting plate 10 about the rod portion 332 of the connecting rod 33.

[0042] Further, the second connecting segment 332b of the connecting rod 33 is provided with a threaded structure 332c on the outer periphery away from the first connecting segment 332a, which is designed to match the internal thread of the locking sleeve 34, so as to allow the locking sleeve 34 to be threadedly engaged to the threaded structure 332c of the second connecting segment 332b of the connecting rod 33. Optionally, the pitch of the threaded structure 332c on the second connecting segment 332b of the connecting rod 33 can be designed to be small enough to facilitate fine adjustment of a predetermined threshold external force, for example, as a fine thread.

[0043] Optionally, in combination with Figure 5 As shown, the head portion 331 of the connecting rod 33 is designed as a cylindrical shape, and the top surface of the cylindrical shape is smoothly transitioned with the side surface, which makes it necessary for the operator to use a special tool that is adapted to the size and shape of the head portion 331 of the connecting rod 33 to engage the head portion 331 of the connecting rod 33 when tightening or disassembling the connecting rod 33, thereby avoiding the scenario where the operation of the connecting rod 33 in the utility model can be achieved using a regular tool, and further making the panel protection device 100 in the utility model have a fool-proof function.

[0044] Optionally, in combination with Figure 3 and Figure 4 As shown, the mounting plate 10 is arranged in abutment with the front panel, and the movable plate 20 is arranged in abutment with the mounting plate 10, and the peripheral side of the first main body portion 11 of the mounting plate 10 is provided with a lock fitting plate 14 that extends away from the front panel and beyond the movable plate 20, and the peripheral side of the second main body portion 21 of the movable plate 20 is provided with a push plate 24 that extends forward away from the mounting plate 10. Preferably, the lock fitting plate 14 on the mounting plate 10 is arranged radially symmetrically about the first main body portion 11 with the first connecting plate 12, and the push plate 24 on the movable plate 20 is arranged radially symmetrically about the second main body portion 21 with the second connecting plate 22.

[0045] Further, the panel protection device 100 can further comprise a padlock. The padlock assembly plate 14 is provided with a first assembly hole 15 penetrating therethrough, and the push plate 24 is provided with a second assembly hole 25 penetrating therethrough. When the movable plate 20 is rotated relative to the mounting plate 10 to the aligned state, the first assembly hole 15 on the padlock assembly plate 14 is aligned with the second assembly hole 25 on the push plate 24, and the padlock is passed through the first assembly hole 15 and the second assembly hole 25 to lock the movable plate 20 and the mounting plate 10 aligned with each other, thereby further improving the reliability of the panel protection device 100 in the utility model.

[0046] Optionally, in combination with Figure 7 As shown, the first main body part 11 of the mounting plate 10 is provided with a limiting plate 16 extending along the front panel. As Figure 1 and Figure 2 As shown, the movable plate 20 is rotated counterclockwise relative to the mounting plate 10 from Figure 2 As shown, the second mounting state to shield the avoidance hole 111, until Figure 1 As shown, the first mounting state. Therefore, the limiting plate 16 can be located on the first main body part 11 on the counterclockwise side of the padlock assembly plate 14.

[0047] Further, the panel protection device 100 can further comprise a limiting piece 40, which can pass through the limiting hole 17 penetrating along the thickness direction on the limiting plate 16 and pass through the corresponding through hole on the front panel to be fastened to the front panel. Thus, the limiting piece 40 is fixedly installed to the counterclockwise side of the padlock assembly plate 14, thereby preventing the movable plate 20 from rotating excessively relative to the mounting plate 10 when the movable plate 20 is rotated counterclockwise relative to the mounting plate 10 to cover the avoidance hole 111.

[0048] Optionally, as shown, the front side of the second main body part 21 of the movable plate 20 away from the mounting plate 10 can be provided with an identification area 26, for example, the trademark and characteristic parameters of the panel protection device 100 can be arranged on the identification area 26. Preferably, the identification area 26 can be laser printed with the required information, which can ensure that the panel protection device 100 in the utility model has complete functions.

[0049] It should be understood that although the present specification is described in terms of various embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that can be understood by those skilled in the art.

[0050] The above merely illustrates the specific implementation of the present application, and is not intended to limit the scope of the present application. Any equivalent changes, modifications and combinations made by any person skilled in the art without departing from the concept and principles of the present application shall fall within the scope of the present application.

Claims

1. A panel protection device (100) for switchgear, characterized in that, The panel protection device (100) includes: Mounting plate (10) has a clearance hole (111) extending through the thickness direction and a first connecting hole (13) spaced apart from the clearance hole (111); A movable plate (20) is attached to the thickness direction side of the mounting plate (10) and is configured to cover the clearance hole (111). The movable plate (20) is also provided with a second connection hole (23) that passes through the thickness direction and communicates with the first connection hole (13). The connecting component (30) includes a fastener (31) passing through the first connecting hole (13) and the second connecting hole (23) to connect the mounting plate (10) and the movable plate (20) together, and an elastic element (32) sleeved on the fastener (31) and clamped in the thickness direction between the fastener (31) and the mounting plate (10), such that the movable plate (20) can remain stationary relative to the mounting plate (10) when subjected to an external force below a predetermined threshold, and can rotate relative to the mounting plate (10) about the fastener (31) when subjected to an external force not below the predetermined threshold, overcoming the force of the elastic element (32).

2. The panel protection device (100) for switchgear according to claim 1, characterized in that, The fastener (31) includes a connecting rod (33) having a head (331) and a rod portion (332) and a locking sleeve (34) threaded to the rod portion (332) of the connecting rod (33), and the elastic element (32) is clamped between the head (331) of the connecting rod (33) and the mounting plate (10).

3. The panel protection device (100) for switchgear according to claim 2, characterized in that, The rod portion (332) of the connecting rod (33) includes a first connecting segment (332a) adjacent to the head (331) of the connecting rod (33) and a second connecting segment (332b) located on the other side of the first connecting segment (332a) relative to the head (331) of the connecting rod (33). The outer periphery of the first connecting segment (332a) is wider than the outer periphery of the second connecting segment (332b) and the elastic member (32) is sleeved thereon.

4. The panel protection device (100) for switchgear according to claim 3, characterized in that, The outer periphery of the portion of the second connecting segment (332b) away from the first connecting segment (332a) is provided with a threaded structure (332c) for threaded engagement with the locking sleeve (34).

5. The panel protection device (100) for switchgear according to claim 2, characterized in that, The head (331) of the connecting rod (33) is constructed in a cylindrical shape, wherein the top surface and the side surface of the cylindrical shape are smoothly transitioned.

6. The panel protection device (100) for switchgear according to claim 2, characterized in that, The mounting plate (10) has a locking assembly plate (14) extending along the thickness direction toward the movable plate (20) and beyond the movable plate (20). The locking assembly plate (14) has a first mounting hole (15). The movable plate (20) has a lever (24) extending away from the mounting plate (10) along the thickness direction on its periphery. The lever (24) can be aligned with the lock assembly plate (14) when the movable plate (20) covers the clearance hole (111). The lever (24) has a second assembly hole (25) that communicates with the first assembly hole (15) when the lever (24) is aligned with the lock assembly plate (14). The panel protection device (100) also includes a padlock configured to pass through the first mounting hole (15) and the second mounting hole (25) to lock the movable plate (20) and the mounting plate (10) together.

7. The panel protection device (100) for switchgear according to claim 6, characterized in that, The mounting plate (10) is also provided with a limiting hole (17) that extends through the thickness direction and is located downstream of the lock assembly plate (14) in the direction in which the movable plate (20) rotates relative to the mounting plate (10) to cover the clearance hole (111). The panel protection device (100) further includes a limiting member (40) passing through the limiting hole (17) to limit the excessive rotation of the movable plate (20) when it rotates relative to the mounting plate (10) to cover the clearance hole (111).

8. The panel protection device (100) for switchgear according to claim 1, characterized in that, The predetermined threshold force is designed to be 1 Newton.

9. The panel protection device (100) for switchgear according to claim 1, characterized in that, The outer surfaces of both the mounting plate (10) and the movable plate (20) are designed to be mirrored.

10. A switch cabinet, characterized in that, The switch cabinet includes a panel protection device (100) according to any one of claims 1 to 9.

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