Protective cover for preventing misoperation of air switch

Abstract

The invention discloses a protective cover for preventing misoperation of an air switch, and relates to the technical field of air switch protection, and the protective cover specifically comprises a protective cover body, the front surface of the protective cover body is provided with a first label, and the front surface of the protective cover body is fixedly provided with an upper housing. A containing box used for storing second labels is movably installed on the inner wall of the upper shell, and a plurality of partition plates used for separating the second labels are movably installed in the containing box. Through cooperation of the protective cover body, the magnet, the first label and the second label, the magnet is arranged, the protective cover body is adsorbed on the metal panel of the screen cabinet, and then the second label is inserted into the placing box, so that the protective cover body can be used for reminding field workers or other personnel such as polling personnel; when the air switch is in an exit state, mistaken input is prevented, and meanwhile, after the work is finished, if the protective cover body is not taken down, an obvious prompt is given to remind a worker that the air switch is not recovered.

Description

Technical Field

[0001] This invention relates to the field of air switch protection, specifically to a protective cover for preventing misoperation of air switches. Background Technology

[0002] Air circuit breakers are crucial electrical appliances in low-voltage power distribution networks and electric drive systems. They are switches that automatically disconnect when the current in a circuit exceeds its rated current. Air circuit breakers typically have multiple functions, including isolation during normal maintenance and tripping to prevent cascading tripping in case of an accident. In daily operation, when power lines malfunction or equipment fails, it is often necessary to disconnect one or more power sources. In such cases, the corresponding air circuit breaker needs to be disconnected, or the air circuit breaker wiring can be directly removed.

[0003] However, since electrical equipment cabinets typically have several or even a dozen circuit breakers, during on-site work, workers or other personnel may mistakenly close circuit breakers that should be disconnected, resulting in accidental power supply. This can affect equipment and personal safety. Alternatively, when restoring power after work, if a circuit breaker is forgotten to be engaged, it can exacerbate the impact of the fault. Existing technology mainly involves listing the names of circuit breakers and their corresponding operations on work orders, but in practice, there are still cases of accidental activation or forgetting to engage them. In view of this, this paper proposes a protective cover to prevent accidental activation of circuit breakers. This cover serves as a reminder during work that a circuit breaker should not be engaged and after work that it should be restored. Summary of the Invention

[0004] This application proposes a protective cover to prevent accidental operation of air switches, which has the following advantages: it facilitates the use of the protective cover, simplifies the disassembly and assembly steps of the anti-slip cover, prevents accidental operation of the air switch, and solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a protective cover to prevent misoperation of an air switch, comprising a protective cover body, a first label provided on the front of the protective cover body, an upper shell fixedly installed on the front of the protective cover body, a placement box for storing a second label movably installed on the inner wall of the upper shell, a plurality of partitions for separating the second labels movably installed inside the placement box, a lifting plate fixedly connected to the lower end of the placement box, fixing blocks fixedly installed on the left and right sides of the lifting plate respectively, the fixing blocks being movably connected to the upper shell through quick-release components, a lower shell fixedly installed at the lower end of the upper shell, a movable component fixedly connected inside the lower shell, and the upper end of the movable component being fixedly connected to the lower end face of the lifting plate, the back of the protective cover body being magnetically attached to the metal panel of the cabinet.

[0006] Preferably, the protective cover body includes a surrounding panel and a front end panel, and the back of the front end panel is fixedly connected to the front end of the surrounding panel.

[0007] Preferably, anti-slip pads are provided on both the left and right sides of the enclosure, and anti-slip protrusions are evenly distributed on the side of the anti-slip pads away from the enclosure. The front side of the front end plate is fixedly connected to the back of the first label and the upper shell.

[0008] Preferably, the left and right sides of the inner wall of the upper housing are respectively provided with sliding grooves located outside the fixing block, the bottom surface of the inner wall of the upper housing is provided with a cylindrical hole located outside the movable component, the lower ends of the left and right sides of the upper housing are provided with through holes for connecting quick-release components, and the front of the upper housing is provided with a viewing window.

[0009] Preferably, the left and right sides of the inner wall of the placement box are respectively provided with limiting grooves located outside the partition, and the bottom surface of the inner wall of the placement box is uniformly provided with grooves located below the partition.

[0010] Preferably, limit blocks are fixedly installed on both the left and right sides of the partition, and the outer wall of the limit block away from the partition is movably engaged with the inner wall of the limit groove. Protrusions are evenly distributed at the lower end of the partition, and the outer wall of the protrusion away from the partition is movably inserted into the inner wall of the groove. A pull rod is fixedly installed at the upper end of the partition, and a support plate for supporting the second label is fixedly connected to the lower end of the front side of the partition.

[0011] Preferably, brackets are fixedly installed on the front and rear sides of the fixing block, and a rotating shaft is fixedly sleeved at the end of the bracket away from the fixing block. A roller is movably sleeved on the outer wall of the rotating shaft, and the outer wall of the roller is in rolling connection with the inner wall of the slide groove.

[0012] Preferably, the quick-release assembly includes a first spring, a pressing block, and a ball bearing. The inner end of the first spring is fixedly connected to the inner wall of the fixing block. The pressing block is installed at the end of the first spring away from the fixing block. The outer side of the pressing block is rotatably connected to the outer wall of the ball bearing. The outer wall of the ball bearing is rollingly connected to the inner wall of the slide groove. The outer wall of the pressing block is movably engaged with the inner wall of the through hole.

[0013] Preferably, the movable component includes a telescopic rod and a second spring, wherein the outer wall of the telescopic rod is movably sleeved with the inner wall of the second spring.

[0014] Preferably, the lower ends of the telescopic rod and the second spring are fixedly connected to the bottom surface of the inner wall of the lower housing, and the upper ends of the telescopic rod and the second spring are fixedly connected to the lower end surface of the lifting plate.

[0015] The present invention has the following beneficial effects:

[0016] 1. This invention utilizes the cooperation between the protective cover body, the magnet, the first label box, and the second label. By using the magnet, the protective cover body is attracted to the metal panel of the cabinet, and the second label is inserted into the box. This allows the protective cover body to remind on-site staff or inspectors that the air switch is in the off state, preventing accidental activation. Additionally, if the protective cover body is not removed after work, a clear indication will be provided to remind staff that the air switch has not been reset.

[0017] 2. This invention achieves vertical lifting and lowering of the lifting plate by coordinating the placement box, the second label, the lifting plate, and the movable components. The movable components are designed to allow the placement box to be ejected from the upper housing after compression, facilitating the removal and replacement of the second label and thus improving the convenience of the second label in actual use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a rear view of the protective cover body in the structure of the present invention;

[0020] Figure 3 This is a side view of the upper shell in the structure of the present invention;

[0021] Figure 4 This is a side view of the slide in the structure of the present invention;

[0022] Figure 5 This is a side view of the anti-slip protrusions in the structure of the present invention;

[0023] Figure 6 In the structure of this invention Figure 5 A magnified view of point A;

[0024] Figure 7 This is a top view of the structure in which the box is placed;

[0025] Figure 8 This is a top view of the fixing block in the structure of the present invention;

[0026] Figure 9 This is a side view of the limiting groove in the structure of the present invention;

[0027] Figure 10 This is a side view of the partition in the structure of the present invention;

[0028] Figure 11 This is a side view of the tie rod in the structure of the present invention.

[0029] In the diagram: 1. Protective cover body; 2. First label; 3. Upper shell; 4. Placement box; 5. Partition; 6. Second label; 7. Lifting plate; 8. Fixing block; 9. Quick release assembly; 901. First spring; 902. Pressing block; 903. Ball bearing; 10. Lower shell; 11. Movable assembly; 111. Telescopic rod; 112. Second spring; 12. Anti-slip pad; 13. Anti-slip protrusion; 14. Magnet; 15. Slide groove; 16. Through hole; 17. Viewing window; 18. Cylindrical hole; 19. Limiting groove; 20. Groove; 21. Bracket; 22. Rotating shaft; 23. Roller; 24. Limiting block; 25. Protrusion; 26. Pull rod; 27. Support plate. Detailed Implementation

[0030] The technical solution of the present invention will be clearly and completely described below with reference to preferred embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 7A protective cover to prevent accidental operation of air switches includes a protective cover body 1. A first label 2 is provided on the front of the protective cover body 1. An upper shell 3 is fixedly installed on the front of the protective cover body 1, providing space for the installation of a placement box 4. A placement box 4 for storing second labels 6 is movably installed on the inner wall of the upper shell 3. The first label 2 is marked with the words "Power off, do not engage" in red on a white background. Each second label 6 is marked with the name of the corresponding air switch. By replacing the second labels 6, the protective cover body 1 can be reused for various air switches. During on-site operation, after the air switch is disconnected, the protective cover body 1 covers the air switch. Several partitions 5 are movably installed inside the placement box 4 to separate the second labels 6. The partitions 5 can separate and store multiple labels placed in the placement box 4. When the operator needs to use a particular label, one label can be taken out from the multiple labels. A lifting plate 7 is fixedly connected to the lower end of the placement box 4. The plate 7 is designed to provide power for the ejection of the box 4 from the upper housing 3, thereby facilitating the removal or replacement of the second label 6. Fixing blocks 8 are fixedly installed on the left and right sides of the lifting plate 7. The fixing blocks 8 provide a platform and space for the installation or movement of the quick-release assembly 9. The fixing blocks 8 are movably connected to the upper housing 3 via the quick-release assembly 9. By changing the connection method between the quick-release assembly 9 and the upper housing 3, the movement of the lifting plate 7 within the upper housing 3 can be facilitated. A lower housing 10 is fixedly installed at the lower end of the upper housing 3. The lower housing 10 serves to protect the movable assembly 11 and also provides a platform for its installation. The movable assembly 11 is fixedly connected inside the lower housing 10, and its upper end is fixedly connected to the lower end face of the lifting plate 7. The installation of the movable assembly 11 connects the lifting plate 7 to the lower housing 10. The back of the protective cover body 1 is attached to the metal panel of the cabinet by a magnet 14. After the work is completed, the air switch is removed and restored.

[0032] The protective cover body 1 includes a surrounding panel and a front end panel, with the back of the front end panel fixedly connected to the front end of the surrounding panel.

[0033] Anti-slip pads 12 are provided on both the left and right sides of the enclosure. The anti-slip pads 12 provide a platform for the installation of anti-slip protrusions 13. The anti-slip protrusions 13 are evenly distributed on the side of the anti-slip pads 12 away from the enclosure. The anti-slip pads 12 and anti-slip protrusions 13 increase the friction between the protective cover body 1 and the contact surface of the worker's hand, preventing the protective cover body 1 from slipping off the worker's hand due to the smoothness of the surface, thereby strengthening the stability of the protective cover body 1 in the worker's hand. The front of the front panel is fixedly connected to the back of the first label 2 and the upper shell 3.

[0034] like Figure 4 , Figure 3 , Figure 8 and Figure 11 The upper housing 3 has sliding grooves 15 on the left and right sides of its inner wall, located outside the fixed block 8. The bottom surface of the upper housing 3 has a cylindrical hole 18 on the outside of the movable component 11. The cylindrical hole 18 provides space for the movement of the movable component 11. The lower ends of the left and right sides of the upper housing 3 have through holes 16 for connecting the quick-release component 9. By changing the connection method between the through hole 16 and the quick-release component 9, the lifting plate 7 can move inside the upper housing 3. The front of the upper housing 3 has a viewing window 17, which makes it easy for staff to see the writing on the second label from the outside of the upper housing 3.

[0035] The inner wall of the placement box 4 has limiting grooves 19 on the left and right sides, respectively, located outside the partition 5. The limiting grooves 19 facilitate the installation of the partition 5 inside the placement box 4. The bottom surface of the inner wall of the placement box 4 is evenly provided with grooves 20 located below the partition 5. The grooves 20 allow the partition 5 to be installed inside the placement box 4.

[0036] Limiting blocks 24 are fixedly installed on both the left and right sides of the partition 5. The outer wall of the limiting block 24 away from the partition 5 is movably engaged with the inner wall of the limiting groove 19. Due to the movable engagement between the limiting groove 19 and the limiting block 24, the partition 5 can be removed from the placement box 4 when the limiting block 24 is separated from the limiting groove 19. When the limiting block 24 is engaged with the limiting groove 19, the partition 5 can be installed inside the placement box 4 to provide space. Protrusions 25 are evenly distributed at the lower end of the partition 5, and the outer wall of the protrusion 25 away from the partition 5 is movably inserted into the inner wall of the groove 20. Due to the movable engagement between the protrusion 25 and the groove 20, the partition 5 can be removed when the protrusion 25 is separated from the groove 20. When the protrusion 25 is inserted into the groove 20 after being removed from the placement box 4, the partition 5 can be installed inside the placement box 4. A pull rod 26 is fixedly installed on the upper end of the partition 5. The pull rod 26 is designed to facilitate the removal of the partition 5 from the placement box 4 and the insertion of the partition 5 into the placement box 4. A tray 27 for supporting the second label 6 is fixedly connected to the lower end of the front of the partition 5. The second label 6 is placed on the partition 5 and supported by the tray 27, so that when the partition 5 is removed from the placement box 4, the second label 6 placed on the tray 27 is also removed. When the partition 5 is placed into the placement box 4, the second label 6 on the tray 27 can be placed in as well.

[0037] like Figure 10 , Figure 9 , Figure 6 and Figure 5A bracket 21 is fixedly installed on the front and rear sides of the fixed block 8. The bracket 21 connects the rotating shaft 22 to the fixed block 8. The rotating shaft 22 is fixedly sleeved at the end of the bracket 21 away from the fixed block 8. The rotating shaft 22 connects the roller 23 to the bracket 21. The roller 23 is movably sleeved on the outer wall of the rotating shaft 22, and the outer wall of the roller 23 is in rolling connection with the inner wall of the slide groove 15. Due to the movable sleeve connection between the roller 23 and the rotating shaft 22, the roller 23 can roll on the inner wall of the slide groove 15.

[0038] The quick-release assembly 9 includes a first spring 901, a pressing block 902, and a ball bearing 903. The inner end of the first spring 901 is fixedly connected to the inner wall of the fixing block 8. The first spring 901 connects the fixing block 8 and the pressing block 902. When the first spring 901 is compressed, the pressing block 902 is pressed into the interior of the fixing block 8. When the first spring 901 returns to its original position, the pressing block 902 can be ejected from the interior of the fixing block 8 to the exterior of the upper housing 3. The pressing block 902 is installed at the end of the first spring 901 away from the fixing block 8. The outer side of the pressing block 902 is rotatably connected to the outer wall of the ball bearing 903. Due to the rotation of the ball bearing 903 on the outer side of the pressing block 902, it is convenient for the ball bearing 903 to roll on the inner wall of the slide groove 15, thereby preventing wear caused by direct contact between the pressing block 902 and the slide groove 15. The outer wall of the ball bearing 903 is rotatably connected to the inner wall of the slide groove 15, and the outer wall of the pressing block 902 is movably engaged with the inner wall of the through hole 16. By changing the connection method between the pressing block 902 and the through hole 16, the vertical lifting movement of the lifting plate 7 in the upper housing 3 can be realized.

[0039] The movable component 11 includes a telescopic rod 111 and a second spring 112. The outer wall of the telescopic rod 111 is movably connected to the inner wall of the second spring 112. The return of the second spring 112 drives the telescopic rod 111 to reset, so that the return movement of the telescopic rod 111 drives the connection of the lifting plate 7 to pop out of the placement box 4 inside the upper housing 3. After the placement box 4 pops out from the inside of the upper housing 3, the operator can take out the partition 5 from the inside of the placement box 4 through the pull rod 26. Since the second label 6 is placed on the tray 27, the second label 6 can be removed and replaced at the same time after it is removed from the inside of the placement box 4.

[0040] The lower ends of the telescopic rod 111 and the second spring 112 are fixedly connected to the bottom surface of the inner wall of the lower housing 10. The telescopic rod 111 and the second spring 112 are used to connect the lower housing 10 and the lifting plate 7. The upper ends of the telescopic rod 111 and the second spring 112 are fixedly connected to the lower end surface of the lifting plate 7.

[0041] Working principle: In use, firstly, the first label 2 is set with the words "Power off, do not turn on" in red on a white background. Each second label 6 has the corresponding name of the circuit breaker. By replacing the second labels 6, the protective cover body 1 can be reused for each circuit breaker. During on-site operation, after the circuit breaker is turned off, the protective cover body 1 covers the circuit breaker and is attracted to the metal panel of the cabinet using magnet 14. After work, it is removed to restore the circuit breaker. Then, when it is necessary to replace the second label 6, pressing the ball bearing 903 compresses the first spring 901 through the connection of the pressing block 902 until the ball bearing 903 is compressed to... Inside the fixed block 8, the second spring 112's rebound causes the telescopic rod 111 to reset, causing the telescopic rod 111's rebound movement to cause the lifting plate 7 to connect and cause the placement box 4 to pop out inside the upper housing 3. After the placement box 4 pops out from inside the upper housing 3, the operator uses the pull rod 26 to remove the partition 5 from inside the placement box 4. Since the second label 6 is placed on the tray 27, the second label 6 can be removed and replaced at the same time after being removed from inside the placement box 4. Finally, by using the setting of several partitions 5 inside the placement box 4, multiple second labels 6 can be separated, thus facilitating the use of the second label 6.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention. The invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A protective cover to prevent accidental operation of an air switch, characterized in that: The device includes a protective cover body (1), a first label (2) is provided on the front of the protective cover body (1), an upper shell (3) is fixedly installed on the front of the protective cover body (1), a placement box (4) for storing a second label (6) is movably installed on the inner wall of the upper shell (3), a plurality of partitions (5) for separating the second label (6) are movably installed inside the placement box (4), a lifting plate (7) is fixedly connected to the lower end of the placement box (4), a fixing block (8) is fixedly installed on the left and right sides of the lifting plate (7), the fixing block (8) is movably connected to the upper shell (3) through a quick-release assembly (9), a lower shell (10) is fixedly installed at the lower end of the upper shell (3), a movable assembly (11) is fixedly connected inside the lower shell (10), and the upper end of the movable assembly (11) is fixedly connected to the lower end face of the lifting plate (7), and the back of the protective cover body (1) is attracted to the metal panel of the cabinet by a magnet (14).

2. The protective cover for preventing misoperation of an air switch according to claim 1, characterized in that: The protective cover body (1) includes a surrounding panel and a front end panel, with the back of the front end panel fixedly connected to the front end of the surrounding panel.

3. The protective cover for preventing misoperation of an air switch according to claim 2, characterized in that: Anti-slip pads (12) are provided on both the left and right sides of the enclosure. Anti-slip protrusions (13) are evenly distributed on the side of the anti-slip pads (12) away from the enclosure. The front side of the front end plate is fixedly connected to the back of the first label (2) and the upper shell (3).

4. A protective cover for preventing malfunction of an air switch according to claim 3, characterized in that: The upper housing (3) has sliding grooves (15) on the left and right sides of its inner wall, located outside the fixed block (8). The bottom surface of the upper housing (3) has a cylindrical hole (18) on the outside of the movable component (11). The lower ends of the left and right sides of the upper housing (3) have through holes (16) for connecting the quick-release component (9). The front of the upper housing (3) has a viewing window (17).

5. A protective cover for preventing misoperation of an air switch according to claim 4, characterized in that: The inner wall of the placement box (4) has limiting grooves (19) on the left and right sides respectively located outside the partition (5), and the bottom surface of the inner wall of the placement box (4) is evenly provided with grooves (20) located below the partition (5).

6. A protective cover for preventing misoperation of an air switch according to claim 5, characterized in that: Limiting blocks (24) are fixedly installed on both the left and right sides of the partition (5), and the outer wall of the limiting block (24) away from the partition (5) is movably engaged with the inner wall of the limiting groove (19). Protrusions (25) are evenly distributed at the lower end of the partition (5), and the outer wall of the protrusion (25) away from the partition (5) is movably inserted into the inner wall of the groove (20). A pull rod (26) is fixedly installed at the upper end of the partition (5), and a support plate (27) for supporting the second label (6) is fixedly connected to the lower end of the front of the partition (5).

7. A protective cover for preventing misoperation of an air switch according to claim 4, characterized in that: The front and rear sides of the fixed block (8) are respectively fixedly installed with brackets (21). The end of the bracket (21) away from the fixed block (8) is fixedly sleeved with a rotating shaft (22). The outer wall of the rotating shaft (22) is movably sleeved with a roller (23), and the outer wall of the roller (23) is in rolling connection with the inner wall of the slide groove (15).

8. A protective cover for preventing misoperation of an air switch according to claim 4, characterized in that: The quick-release assembly (9) includes a first spring (901), a pressing block (902), and a ball (903). The inner end of the first spring (901) is fixedly connected to the inner wall of the fixing block (8). The pressing block (902) is installed on the end of the first spring (901) away from the fixing block (8). The outer side of the pressing block (902) is rotatably connected to the outer wall of the ball (903). The outer wall of the ball (903) is rollingly connected to the inner wall of the slide groove (15). The outer wall of the pressing block (902) is movably engaged with the inner wall of the through hole (16).

9. A protective cover for preventing malfunction of an air switch according to claim 4, characterized in that: The movable component (11) includes a telescopic rod (111) and a second spring (112), wherein the outer wall of the telescopic rod (111) is movably sleeved with the inner wall of the second spring (112).

10. A protective cover for preventing misoperation of an air switch according to claim 9, characterized in that: The lower ends of the telescopic rod (111) and the second spring (112) are fixedly connected to the bottom surface of the inner wall of the lower housing (10), and the upper ends of the telescopic rod (111) and the second spring (112) are fixedly connected to the lower end surface of the lifting plate (7).

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