A switch guard

Abstract

This utility model provides a switch protection device, relating to the field of switch protection technology, comprising: a frame, at least one protective cover, and at least two movable bracket assemblies. The frame is mounted on a cabinet mounting plate, and its interior is hollow, forming an accommodating space. The protective cover is hinged to the frame, and has a closed state covering the accommodating space and an open state exposing the accommodating space. Two adjacent movable bracket assemblies are respectively disposed on opposite sides of the frame. The movable bracket assemblies are used to adapt the frame to the corresponding installation position on the cabinet mounting plate. Each movable bracket assembly includes: a first connecting structure for adjusting the alignment between the movable bracket assembly and the cabinet mounting plate in a first direction; and a second connecting structure for adjusting the alignment between the movable bracket assembly and the frame in a second direction intersecting or perpendicular to the first direction. This design gives it the advantage of high versatility.

Description

Technical Field

[0001] This utility model relates to the field of switch protection technology, and in particular to a switch protection device. Background Technology

[0002] Air circuit breakers, as common protective components in power systems, are widely used in equipment such as distribution cabinets and control cabinets. Air circuit breakers are typically mounted on the mounting plate of the cabinet. To prevent accidental contact, misoperation, or damage from external dust, moisture, etc., protective devices are often installed on their exterior.

[0003] Existing circuit breaker protection devices typically consist of a frame and a protective cover. The frame is usually directly fixed to the mounting plate of the cabinet using screws or other methods. However, in practical applications, the mounting plate structure, switch installation position, or reserved hole positions vary among different cabinets, making it difficult for standardized frame structures to adapt to different mounting plates, resulting in low versatility.

[0004] Therefore, a highly versatile switch protection device needs to be designed. Utility Model Content

[0005] The purpose of this utility model is to provide a switch protection device that addresses the defects and shortcomings of the existing technology, thereby solving at least one of the aforementioned technical problems. It has the advantage of high versatility.

[0006] To achieve the above objectives, this utility model provides a switch protection device, comprising:

[0007] A frame, which is mounted on a cabinet mounting plate, and the frame is hollow inside to form an accommodating space;

[0008] At least one protective cover, the protective cover being hinged to the frame, the protective cover having a closed state covering the accommodating space and an open state exposing the accommodating space;

[0009] At least two movable support assemblies, with two adjacent movable support assemblies respectively disposed on opposite sides of the frame. The movable support assemblies are used to adapt the frame to the installation position corresponding to the cabinet mounting plate. Each movable support assembly includes:

[0010] The first connection structure is used to realize the alignment adjustment between the movable support assembly and the cabinet mounting plate in a first direction;

[0011] The second connection structure is used to realize the alignment adjustment between the movable support assembly and the frame in a second direction that intersects with or is perpendicular to the first direction.

[0012] Optionally, the two movable support assemblies are respectively disposed on the left and right sides of the frame; the left and right sides of the frame are respectively provided with first positioning screw holes;

[0013] The first connecting structure is a positioning plate, and the second connecting structure is a mounting bracket;

[0014] The positioning plate is provided with a second positioning screw hole and a first oblong hole extending along the first direction and correspondingly connected to the third positioning screw hole on the cabinet mounting plate.

[0015] One end of the mounting bracket is provided with a second oblong hole extending along the second direction and correspondingly connected to the second positioning screw hole, and the other end is provided with a third oblong hole correspondingly connected to the first positioning screw hole and extending along the first direction.

[0016] Optionally, the frame is provided with an inwardly extending mounting flange, and the first positioning screw hole is provided on the mounting flange;

[0017] The mounting bracket has a Z-shaped cross section, the second oblong hole is located at one end of the lower horizontal plate of the mounting bracket, and the third oblong hole is located at one end of the upper horizontal plate of the mounting bracket.

[0018] The positioning plate is also provided with a shim stud, and the second positioning screw hole is the screw hole of the shim stud. The height of the shim stud can be selected according to the depth of the groove in the cabinet mounting plate.

[0019] Optionally, the positioning plate is provided with a plurality of the first waist-shaped holes at intervals in a first direction;

[0020] The mounting bracket is provided with a plurality of second oblong holes spaced apart in a first direction;

[0021] The mounting bracket is provided with a plurality of the third oblong holes at intervals in the first direction.

[0022] Optionally, the switch protection device further includes a positioning bead combination hinge; the protective cover is rotatably connected to the frame via the positioning bead combination hinge, and can achieve self-locking at a preset angle.

[0023] Optionally, the positioning bead assembly hinge includes:

[0024] Two pivot seats are mounted on the mounting flange;

[0025] A rotating shaft is rotatably mounted on both sides of the rotating shaft seat. The end of the shaft closer to the rotating shaft seat is provided with positioning grooves spaced apart in the circumferential direction, and the end away from the rotating shaft seat is fixed to the protective cover.

[0026] The positioning bead is elastically set on the rotating shaft seat and can be embedded in the positioning groove to achieve self-locking positioning at a preset angle.

[0027] Optionally, the protective cover has a transparent window at least corresponding to the operating area of ​​the switch.

[0028] Optionally, the frame is provided with a positioning lock on the side opposite to the mounting of the pivot seat, and the protective cover is provided with a locking mouth at the corresponding position that cooperates with the locking tongue of the positioning lock; the positioning lock is provided with a sensor to sense the position of the locking tongue to detect the locking state.

[0029] Optionally, the two protective covers are arranged side by side along the length of the frame.

[0030] Optionally, the bottom surface of the frame is provided with a magnetic attachment for pre-positioning with the cabinet mounting plate.

[0031] Compared with the prior art, the advantages of this application are:

[0032] Because the switch protection device has movable support assemblies on opposite sides of the frame, each movable support assembly includes a first connecting structure for adjusting its alignment with the cabinet mounting plate in a first direction, and a second direction for adjusting the alignment between the movable support assembly and the frame in a direction intersecting or perpendicular to the first direction. This allows the frame to be adjusted in multiple directions relative to the cabinet mounting plate during installation, thus adapting to cabinet mounting plates with different structures or inconsistent mounting hole positions, giving it the advantage of high versatility. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the switch protection device assembled on the cabinet mounting plate according to Embodiment 1 of this utility model;

[0035] Figure 2 This is a partially exploded structural diagram of the switch protection device and the cabinet mounting plate according to Embodiment 1 of this utility model;

[0036] Figure 3 This is a front view of the switch protection device according to Embodiment 1 of the present invention, wherein the protective cover is in the open state;

[0037] Figure 4 This is a structural schematic diagram of the switch protection device according to another perspective of Embodiment 1 of this utility model;

[0038] Figure 5This is a front view of the switch protection device according to Embodiment 1 of the present invention, wherein the protective cover is in a closed state;

[0039] Figure 6 for Figure 5 A sectional view along line AA.

[0040] Figure 7 for Figure 6 A magnified view of a section at point B in the middle;

[0041] Figure 8 This is an exploded structural diagram of the movable support assembly according to Embodiment 1 of this utility model;

[0042] Figure 9 This is a schematic diagram of the structure of the hinge combining the protective cover and the positioning bead in Embodiment 1 of this utility model;

[0043] Figure 10 This is an exploded structural diagram of the positioning bead combination hinge according to Embodiment 1 of this utility model;

[0044] Figure 11 This is a schematic diagram of the switch protection device according to Embodiment 2 of this utility model, wherein the protective cover is in the open state.

[0045] Explanation of reference numerals in the attached figures

[0046] 100 - Switch protection device;

[0047] 1-Frame; a-Accommodation space; 11-Mounting flange; o1-First positioning screw hole;

[0048] 2- Protective cover; 21- Transparent window;

[0049] 3-Modible bracket assembly; 31-Positioning plate; 311-Elevation stud; o2-Second positioning screw hole; o3-First oblong hole; 32-Mounting bracket; 321-Upper horizontal plate; o4-Third oblong hole; 322-Vertical plate; 333-Lower horizontal plate; o5-Second oblong hole;

[0050] 4-Positioning bead combination hinge; 41-Spindle seat; 411-Pin; o6-Sliding hole; 42-Rotating shaft; b-Positioning groove; 43-Positioning bead;

[0051] 5-Positioning lock; 51-Lock tongue; 07-Lock opening;

[0052] 6-First screw;

[0053] 7-Second screw;

[0054] 8-Third screw;

[0055] 200 - Screen cabinet mounting plate; o8 - Third positioning screw hole; c - Mounting groove;

[0056] 300-Switch. Detailed Implementation

[0057] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0058] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "back," "side," and "circumferential" used in this utility model to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used to distinguish multiple parts or structures with the same or similar structures, and do not indicate any special limitation on the arrangement order or connection relationship.

[0059] Example 1

[0060] Please refer to Figures 1 to 10 This utility model provides a switch protection device 100, including: a frame 1, at least one protective cover 2 and at least two movable support assemblies 3.

[0061] The frame 1 is a square frame 1, which is installed on the cabinet mounting plate 200. The interior of the frame 1 is hollow and forms an accommodating space a; that is, when the frame 1 is installed on the cabinet mounting plate 200, the operating part of the switch 300 is located in the accommodating space a.

[0062] A protective cover 2 is hinged to a frame 1, having a closed state covering the accommodating space a and an open state exposing the accommodating space a. Specifically, in this embodiment, the protective cover 2 is rotatably connected to one side frame of the frame 1.

[0063] Two adjacent movable support components 3 are respectively disposed on opposite sides of the frame 1 to allow the frame 1 to adapt to different installation positions of the cabinet mounting plate 200. Specifically, in this embodiment, the two movable support components 3 are respectively disposed on the left and right sides of the frame 1. Of course, in other embodiments, the two movable support components 3 are respectively disposed on the top and bottom sides of the frame 1, and no specific limitation is made here. Of course, in other embodiments, two movable support components 3 may be disposed on each opposite side, or movable support components 3 may be disposed on the top, bottom, left, and right sides, and no specific limitation is made here.

[0064] Each movable support assembly 3 includes: a first connecting structure and a second connecting structure.

[0065] The first connecting structure is used to adjust the alignment between the movable support assembly 3 and the cabinet mounting plate 200 in a first direction. In this embodiment, the first direction is the vertical direction. That is, since most of the cabinet mounting plates 200 have a third positioning screw hole o8 pre-drilled, and the third positioning screw hole o8 on different cabinet mounting plates 200 has a different vertical position relative to the operating part of the switch 300, by adjusting its alignment with the third positioning screw hole o8 of the cabinet mounting plate 200 in the vertical direction through the first connecting structure, the frame 1 can always be adapted to the operating part of the switch 300 in the vertical direction.

[0066] The second connecting structure is used to adjust the alignment between the movable support assembly 3 and the frame 1 in a second direction perpendicular to the first direction. In this embodiment, the second direction is horizontal. Since the distance between the third positioning screw hole o8 and the side frame of the frame 1 varies, adjusting the alignment between the movable support assembly 3 and the frame 1 in the horizontal direction using the second structure ensures that the frame 1 is always aligned with the position of the third positioning screw hole o8 in the horizontal direction. Of course, in other embodiments, the second connecting structure is used to adjust the alignment between the movable support assembly 3 and the frame 1 in a second direction intersecting the first direction. This design also achieves the effect of ensuring that the frame 1 is always aligned with the position of the third positioning screw hole o8 in the horizontal direction, and no specific limitation is made here.

[0067] Because the switch protection device 100 has movable bracket assemblies 3 on opposite sides of the frame 1, the movable bracket assembly 3 includes a first connecting structure for adjusting its alignment with the cabinet mounting plate 200 in a first direction, and a second connecting structure for adjusting its alignment with the frame 1 in a second direction perpendicular to or intersecting with the first direction; thus, the frame 1 can be adjusted in multiple directions relative to the cabinet mounting plate 200 during installation, thereby adapting to cabinet mounting plates 200 with different structures or inconsistent mounting hole positions, thus giving it the advantage of high versatility.

[0068] Alternatively, please refer to Figure 2 and Figure 8 In this embodiment, the frame 1 has first positioning screw holes o1 on its left and right sides respectively. The first connecting structure is a positioning plate 31. The second connecting structure is a mounting bracket 32.

[0069] The positioning plate 31 is provided with a second positioning screw hole o2 and a first oblong hole o3. The first oblong hole o3 extends along the first direction and is connected to the third positioning screw hole o8 on the cabinet mounting plate 200. That is, after the positioning plate 31 is adjusted to the correct position in the first direction, the positioning plate 31 is connected to the cabinet mounting plate 200 by threading the first screw 6 into the third positioning screw hole o8.

[0070] The mounting bracket 32 ​​is provided with a second oblong hole o5 and a third oblong hole o4. The second oblong hole o5 is located at one end of the mounting bracket 32, extends along the second direction, and corresponds to the second positioning screw hole o2. That is, after the mounting bracket 32 ​​is adjusted to the correct position in the second direction, the mounting bracket 32 ​​is connected to the positioning plate 31 by the second screw 7 threadedly connecting to the second screw hole. The third oblong hole o4 is located at the other end of the mounting bracket 32, corresponds to the first positioning screw hole o1, and extends along the first direction. That is, after the mounting bracket 32 ​​is adjusted to the correct position relative to the first positioning screw hole o1 through the third oblong hole o4, the mounting bracket is connected to the frame 1 by the third screw 8 threadedly connecting to the first positioning screw hole o1.

[0071] The switch protection device 100, by providing waist-shaped holes on the positioning plate 31 and the mounting bracket 32, allows the frame 1 to be flexibly adjusted in two directions during installation, thereby adapting to different installation positions and improving the compatibility and ease of installation of the equipment.

[0072] To accommodate cases where the cabinet mounting plate 200 has a mounting groove c, i.e., the mounting position of frame 1 is higher than the mounting position of the first connecting structure, optional options are available, please refer to [reference needed]. Figure 2 and Figure 8 In this embodiment, the frame 1 is provided with an inwardly extending mounting flange 11. A first positioning screw hole o1 is provided on the mounting flange 11. The mounting bracket 32 ​​has a Z-shaped cross-section, including a lower horizontal plate 333, an upper horizontal plate 321, and a vertical plate 322 connecting the lower horizontal plate 333 and the upper horizontal plate 321. A second waist-shaped hole o5 is provided at one end of the lower horizontal plate 333 of the mounting bracket 32. A third waist-shaped hole o4 is provided at one end of the upper horizontal plate 321 of the mounting bracket 32. The positioning plate 31 is also provided with a shim stud 311, and the second positioning screw hole o2 is the screw hole for the shim stud 311. The height of the shim stud 311 can be selected according to the depth of the groove in the cabinet mounting plate 200. In this way, by selecting a positioning plate 31 with shim studs 311 of different heights, it can be adapted to the cabinet mounting plate 200 of the frame 1 corresponding to different depths of mounting groove c.

[0073] To accommodate the case where the mounting plate 200 has two reserved third positioning screw holes o8, and to make the installation of the frame 1 more secure, optionally, in this embodiment, the positioning plate 31 has two first oblong holes o3 spaced apart in the first direction. The mounting bracket 32 ​​has three second oblong holes o5 spaced apart in the first direction. The mounting bracket 32 ​​has multiple third oblong holes o4 spaced apart in the first direction. The left and right sides of the frame 1 also have three first positioning screw holes o1 respectively. Of course, in other embodiments, the number of first oblong holes o3, second oblong holes o5, and third oblong holes o4 can also be set to two, three, four, or more depending on the actual situation, and no specific limitation is made here.

[0074] To ensure that the protective cover 2 maintains the preset angle after being opened, optionally, please refer to... Figure 3 , Figure 9 and Figure 10 In this embodiment, the switch protection device 100 further includes a positioning bead combination hinge 4. The protective cover 2 is rotatably connected to the frame 1 via the positioning bead combination hinge 4, and can achieve self-locking at a preset angle. This improves the safety and convenience of operation. Specifically, in this embodiment, one protective cover 2 is rotatably connected to the frame 1 via four positioning bead combination hinges 4 to achieve a stable effect. Of course, in other embodiments, one, two, three, five, or more can be used, depending on the length and weight of the protective cover 2, and no specific limitation is made here.

[0075] Specifically, the positioning bead combination hinge 4 includes: a pivot seat 41, two rotating shafts 42, and positioning beads 43. The pivot seat 41 is mounted on the mounting flange 11 and serves as the mounting base for the rotating shafts 42.

[0076] Two rotating shafts 42 are rotatably mounted on both sides of the rotating shaft seat 41. Specifically, the two rotating shafts 42 are rotatably mounted on the pins 411 of the rotating shaft seat 41. Each rotating shaft 42 has a circumferentially spaced positioning groove b at one end near the rotating shaft seat 41. In this embodiment, the positioning groove b has an arc-shaped cross-section and extends axially along the rotating shaft 42. Of course, in other embodiments, the positioning groove b can also be a spherical groove, which is not specifically limited here. A protective cover 2 is fixedly connected to the end of the rotating shaft 42 away from the rotating shaft seat 41.

[0077] The positioning bead 43 is elastically mounted on the rotating shaft seat 41 and can be embedded in the positioning groove b to achieve self-locking at a preset angle. Specifically, in this embodiment, the rotating shaft seat 41 is provided with a vertically arranged sliding hole o6. The positioning bead 43 is slidably disposed in the sliding hole o6. In order to make the sliding of the positioning bead 43 in the sliding hole o6 more stable, specifically, in this embodiment, the positioning bead 43 is a ball-head plunger. That is, its lower half is a cylinder and the upper part of the cylinder is a spherical surface. Optionally, a spring (not shown in the figure) is also provided in the sliding hole o6. One end of the spring abuts against the bottom of the sliding hole o6, and the other end abuts against the positioning bead 43, thereby applying an upward elastic force to the positioning bead 43. Thus, when the user rotates to open the protective cover 2, the rotating shaft 42 also rotates at the same time. When the rotation reaches the preset angle, the positioning bead 43 is embedded in the corresponding positioning groove b to achieve self-locking.

[0078] To allow for a clear view of the status of switch 300 even when the protective cover is closed, optional options are available; please refer to [the relevant documentation / reference]. Figure 5 In this embodiment, the protective cover 2 has a transparent window 21 corresponding to the operating area of ​​the switch 300. Optionally, the transparent window 21 can be made of transparent polycarbonate (PC), polymethyl methacrylate (PMMA, i.e., plexiglass), tempered glass, or other materials with good transparency and mechanical strength to balance light transmission and protective performance. Of course, in other embodiments, the protective cover 2 can also be made entirely of transparent material, in which case the transparent window 21 and the protective cover 2 are an integral structure, which can also achieve a good visualization effect.

[0079] To ensure reliable locking of the protective cover 2 in the closed state, optionally, please refer to... Figures 5 to 7 In this embodiment, the frame 1 has a positioning lock 5 on the side opposite to the mounting pivot seat 41, and the protective cover 2 has a locking slot o7 at the corresponding position that cooperates with the locking tongue 51 of the positioning lock 5. The positioning lock 5 has a sensor (not shown in the figure) inside, which is used to sense the position of the locking tongue 51 to detect the locking state. In this way, it can be determined whether the protective cover 2 is in the locked state, reducing safety hazards.

[0080] Typically, the cabinet mounting plate 200 is made of a metal material (such as steel plate) that can be attracted by magnetic materials. To facilitate rapid positioning and installation of the frame 1 and the cabinet, optionally, in this embodiment, the bottom surface of the frame 1 is provided with a magnetic attractor (not shown in the figure) for pre-positioning with the cabinet mounting plate 200. Thus, the magnetic attractor can provide initial attraction during installation, allowing the frame 1 to maintain relative positioning with the cabinet mounting plate 200 before it is fully screwed in, assisting installers in quickly completing the alignment and installation operation.

[0081] Example 2

[0082] Please refer to Figure 11This embodiment is basically the same as Embodiment 1, except for the number and layout of the protective covers 2. Specifically, in this embodiment, two protective covers 2 are arranged side-by-side along the length of the frame 1, respectively covering different areas of the internal storage space a within the frame 1. This solution can adapt to situations where the protective covers 2 are long or multiple switch modules are arranged side-by-side.

[0083] Correspondingly, in this embodiment, two positioning locks 5 are also provided, each located at a corresponding locking position of each protective cover 2. Each protective cover 2 has an independent locking slot o7, which is used to cooperate with the locking tongue 51 of the corresponding positioning lock 5 to ensure that each protective cover 2 can independently achieve locking and unlocking operations.

[0084] Of course, in other embodiments, the number of protective covers 2 of the switch protection device 100 may be three, four or more, depending on the actual situation of the cabinet mounting plate 200 and the switch 300, and no specific limitation is made here.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the substance of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A switch protection device, characterized in that, include: A frame, which is mounted on a cabinet mounting plate, and the frame is hollow inside to form an accommodating space; At least one protective cover, the protective cover being hinged to the frame, the protective cover having a closed state covering the accommodating space and an open state exposing the accommodating space; At least two movable support assemblies, with two adjacent movable support assemblies respectively disposed on opposite sides of the frame. The movable support assemblies are used to adapt the frame to the installation position corresponding to the cabinet mounting plate. Each movable support assembly includes: The first connection structure is used to realize the alignment adjustment between the movable support assembly and the cabinet mounting plate in a first direction; The second connection structure is used to realize the alignment adjustment between the movable support assembly and the frame in a second direction that intersects with or is perpendicular to the first direction.

2. The switch protection device as described in claim 1, characterized in that, The two movable support components are respectively disposed on the left and right sides of the frame; the left and right sides of the frame are respectively provided with first positioning screw holes; The first connecting structure is a positioning plate, and the second connecting structure is a mounting bracket; The positioning plate is provided with a second positioning screw hole and a first oblong hole extending along the first direction and correspondingly connected to the third positioning screw hole on the cabinet mounting plate. One end of the mounting bracket is provided with a second oblong hole extending along the second direction and correspondingly connected to the second positioning screw hole, and the other end is provided with a third oblong hole correspondingly connected to the first positioning screw hole and extending along the first direction.

3. The switch protection device as described in claim 2, characterized in that, The frame is provided with an inwardly extending mounting flange, and the first positioning screw hole is provided on the mounting flange; The mounting bracket has a Z-shaped cross section, the second oblong hole is located at one end of the lower horizontal plate of the mounting bracket, and the third oblong hole is located at one end of the upper horizontal plate of the mounting bracket. The positioning plate is also provided with a shim stud, and the second positioning screw hole is the screw hole of the shim stud. The height of the shim stud can be selected according to the depth of the groove in the cabinet mounting plate.

4. The switch protection device as described in claim 2, characterized in that, The positioning plate is provided with a plurality of first waist-shaped holes spaced apart in a first direction; The mounting bracket is provided with a plurality of second oblong holes spaced apart in a first direction; The mounting bracket is provided with a plurality of the third oblong holes at intervals in the first direction.

5. The switch protection device as described in claim 3, characterized in that, It also includes a positioning bead combination hinge; the protective cover is rotatably connected to the frame through the positioning bead combination hinge, and can achieve self-locking at a preset angle.

6. The switch protection device as described in claim 5, characterized in that, The positioning bead assembly hinge includes: The pivot seat is mounted on the mounting flange; Two rotating shafts are rotatably mounted on both sides of the rotating shaft seat. The end of the shafts near the rotating shaft seat is provided with positioning grooves spaced apart circumferentially, and the end away from the rotating shaft seat is fixed to the protective cover. The positioning bead is elastically set on the rotating shaft seat and can be embedded in the positioning groove to achieve self-locking positioning at a preset angle.

7. The switch protection device as described in claim 1, characterized in that, The protective cover has a transparent window at least corresponding to the operating area of ​​the switch.

8. The switch protection device as described in claim 6, characterized in that, The frame has a positioning lock on the side opposite to the mounting shaft seat, and the protective cover has a locking slot at the corresponding position that cooperates with the locking tongue of the positioning lock; the positioning lock has a sensor inside to sense the position of the locking tongue to detect the locking state.

9. The switch protection device as described in claim 1, characterized in that, The two protective covers are arranged side by side along the length of the frame.

10. The switch protection device as described in claim 1, characterized in that, The bottom surface of the frame is provided with magnetic attachments for pre-positioning with the cabinet mounting plate.

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