Electric control box anti-theft device

Abstract

The application relates to the field of anti-theft devices, in particular to an electric control box anti-theft device. The electric control cabinet anti-theft device comprises a protection ring used for surrounding the periphery of an electric control cabinet to block the opening of a cabinet door of the electric control cabinet, the protection ring comprises protection plates, the protection plates are connected in a head-to-tail mode, the protection plates comprise a flat plate in a character type and L-shaped L-shaped protection plates, and the protection ring comprises four L-shaped protection plates, two adjacent protection plates are provided with outwardly protruding flanges, the flanges are provided with locking holes for passing through a lock, and the protection ring is further provided with hinges used for connecting the two adjacent protection plates, and the hinges are provided with at least one. By additionally arranging the anti-theft device outside the electric control cabinet, the safety performance of the electric control cabinet can be improved, and the problem that expensive devices in the electric control box are easily lost in the prior art, causing economic losses of a shipyard and affecting construction progress can be solved.

Description

Technical Field

[0001] This invention relates to the field of anti-theft devices, and more particularly to an anti-theft device for an electrical control box. Background Technology

[0002] As a crucial component of a ship, the electrical control box integrates key electrical components such as circuit breakers, contactors, relays, PLCs (Programmable Logic Controllers), frequency converters, and terminal blocks. It functions to distribute power, control fans or lighting equipment, provide information processing, and protect circuits. The electrical control box consists of a cabinet and a door, with a lock on the door, which remains locked during normal ship navigation.

[0003] However, the locks on the electrical control boxes are simple locks, primarily intended to prevent operators from directly accessing the internal components during use, thus providing security. Their anti-theft level is low, and since the locks and cabinet doors are supplied directly by the manufacturer, replacement is difficult. During shipbuilding, the equipment is only covered with a single layer of weatherproofing fabric for basic protection, and there are no clear entry restrictions in the construction area. Personnel are mixed together, and because the circuits are not yet connected, these electronic devices are in a de-energized state. Under these circumstances, expensive components inside the electrical control boxes may be lost, not only harming the shipyard's finances but also delaying equipment commissioning and impacting construction progress. Summary of the Invention

[0004] In view of this, the present invention provides an anti-theft device for electrical control boxes, which solves the problem in the prior art that expensive components inside electrical control boxes are easily lost, causing economic losses to shipyards and affecting construction progress.

[0005] An anti-theft device for an electrical control cabinet includes a protective ring for surrounding the electrical control cabinet to prevent the cabinet door from being opened. The protective ring includes protective plates arranged parallel to the cabinet body or door of the electrical control cabinet. Multiple protective plates are connected end to end. The protective plates include straight flat plates and L-shaped protective plates. The protective ring includes four L-shaped protective plates. Two adjacent protective plates are provided with outwardly protruding flanges with locking holes for locks to pass through. Each side of the protective ring is provided with a length adjustment mechanism that can adjust the length of the side of the protective ring. The protective ring is also provided with hinges for connecting two adjacent protective plates. At least one hinge is provided.

[0006] Furthermore, there is one hinge, and the hinge and the locking hole are respectively located on two opposite sides of the protective ring.

[0007] Furthermore, the hinge and locking hole are eccentrically positioned, and their centers are offset to the same side relative to the center line of the protective ring.

[0008] Furthermore, the length adjustment mechanism includes fixing nuts fixed to the surfaces of two adjacent protective plates and adjusting bolts for mounting on the two nuts respectively.

[0009] Furthermore, the fixing nut is welded onto the inner side surface of the protective plate.

[0010] Furthermore, the inner side of the protective plate is also provided with a protective pad to prevent the electrical control cabinet from colliding with the protective plate.

[0011] Furthermore, protective pads are provided on the two right-angled sides of the L-shaped protective plate.

[0012] Furthermore, the inner side of the protective plate is also provided with a protective pad to prevent the electrical control cabinet from colliding with the protective plate, and the thickness of the protective pad is greater than the nominal diameter of the fixing nut.

[0013] Furthermore, the hinge is located between the L-shaped protective plate and the flat plate.

[0014] The beneficial effects of the anti-theft device for electrical control cabinets in this invention are as follows: The protective ring surrounding the electrical control cabinet prevents it from being opened. Multiple interconnected protective plates form the ring, and an adjustable length mechanism facilitates size adjustment and assembly, allowing for customization based on the size of the electrical control cabinet and enhancing its versatility. The L-shaped protective plates effectively cover the four corners of the cabinet, and four L-shaped plates form a complete frame structure. Flanged edges and locking holes on two adjacent protective plates allow for locking with a lock. Since the lock is an additional component, higher-security locks can be selected. A hinge allows the protective ring to open and close; after removing the lock, it can be flipped at the hinge location for easy removal or installation. This additional anti-theft device on the outside of the electrical control cabinet improves its security, thus solving the problem of expensive components inside electrical control boxes being easily lost, causing economic losses to shipyards and affecting construction progress in existing technologies. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of an embodiment of the anti-theft device for the electrical control cabinet in this invention.

[0017] The labels in the diagram represent the following: 1. Adjusting bolt; 2. Fixing nut; 31. First L-shaped protective plate; 32. Second L-shaped protective plate; 33. Third L-shaped protective plate; 34. Fourth L-shaped protective plate; 41. First flat plate; 42. Second flat plate; 51. First flange; 52. Second flange; 53. Locking hole; 6. Foam pad; 7. Hinge. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0019] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0020] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0021] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0022] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0023] In the following description, suffixes such as "module," "part," or "unit" used to denote elements are used only for the convenience of the description of the invention and have no specific meaning in themselves. Therefore, "module" and "part" can be used interchangeably.

[0024] To better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0025] In Embodiment 1 of the electrical control cabinet anti-theft device (hereinafter referred to as the anti-theft device) of this invention: In this invention, the anti-theft device uses an additional metal protective ring on the outside of the electrical control cabinet to prevent the cabinet door from being opened. At the same time, the hinge design eliminates the need to attach the anti-theft device when opening or closing it, making installation and disassembly more convenient.

[0026] Specifically, such as Figure 1 As shown, the anti-theft device in this embodiment includes a rectangular protective ring made of metal, which is not easily damaged. It also fits as close as possible to the outer shell of the electrical control cabinet, minimizing the opening angle of the cabinet door. To avoid affecting the normal operation of the electrical control cabinet, the protective ring must be able to open or close as needed. Therefore, the protective ring is composed of multiple protective plates, each made of metal, arranged parallel to and spaced apart from the cabinet door or body. Of course, in other embodiments, the protective plates can be made of other rigid materials, as long as they are resistant to damage.

[0027] In this embodiment, the protective plates come in two forms: one is an L-shaped protective plate installed at the corner of the electrical control cabinet, and the other is a flat plate installed between two adjacent L-shaped protective plates. Specifically, this embodiment provides four L-shaped protective plates and two flat plates, including a first L-shaped protective plate 31, a second L-shaped protective plate 32, a third L-shaped protective plate 33, a fourth L-shaped protective plate 34, a first flat plate 41, and a second flat plate 42. The first flat plate 41 is located between the first L-shaped protective plate 31 and the second L-shaped protective plate 32, and the second flat plate 42 is located between the third L-shaped protective plate 33 and the fourth L-shaped protective plate 34.

[0028] To connect two adjacent protective plates, a connection structure is required. In this embodiment, a length adjustment mechanism is also provided between the two protective plates. This mechanism enables the connection between the protective plates and allows for adjustment of the protective ring size, facilitating adaptation to electrical control cabinets of different sizes. Specifically, length adjustment mechanisms are provided on each side of the protective ring: between the first L-shaped protective plate 31 and the first flat plate 41; between the second L-shaped protective plate 32 and the third L-shaped protective plate 33; between the second flat plate 42 and the fourth L-shaped protective plate 34; and between the fourth L-shaped protective plate 34 and the first L-shaped protective plate 31. This allows for adjustment of the length on each side. In shipbuilding, there are often multiple electrical control cabinets, and their sizes may differ. The length adjustment mechanism adapts to different electrical control cabinets, improving versatility and reducing the number and specifications of the anti-theft device required.

[0029] The length adjustment mechanism includes a fixing nut 2 for securing the protective plate and an adjusting bolt 1 for mounting within the fixing nut 2. To achieve connection and adjustment between two adjacent protective plates, the same length adjustment mechanism includes two fixing nuts 2, which are respectively mounted on two adjacent protective plates. When the same adjusting bolt 1 is mounted on both fixing nuts 2, the distance between the two fixing nuts 2 remains unchanged regardless of whether the adjusting bolt 1 is rotated, thus achieving the connection function. When the operator installs the mechanism, they can first screw the adjusting bolt 1 onto one of the fixing nuts 2. After the adjusting bolt 1 has been screwed to the appropriate length, it is then engaged with the other fixing nut 2 to connect the two protective plates. The distance between the two fixing nuts 2 is adjusted by changing the initial length of the adjusting bolt 1 screwed onto the first fixing nut 2.

[0030] Of course, in other embodiments, other length adjustment methods can be set. For example, a steel pipe can be welded and fixed to one of the two adjacent protective plates, with a cantilevered section suspended in the air. A metal ring is welded to the other plate to nest with the cantilevered section of the steel pipe, thereby achieving guiding cooperation between the two. Of course, to achieve position locking, a set screw can be set on the cantilevered section of the steel pipe. After adjustment, the set screw is tightened so that it presses against the surface of the other protective plate, thereby achieving locking.

[0031] The combination of adjusting bolt 1 and fixing nut 2 allows for convenient adjustment of the length on the side where the protective ring is located, but it also allows for disassembly. Directly removing this part allows the anti-theft device to be opened without unlocking the lock. In this embodiment, the length adjustment mechanism is located on the inner side of the protective plate. Due to the small distance between the inner side and the electrical control cabinet, when the protective ring is installed on the outer side of the electrical control cabinet, there is no operating space to tighten the adjusting bolt 1. This means that length adjustment is performed before the protective ring is installed in the electrical control cabinet, and it is difficult to adjust the adjusting bolt 1 after installation. Alternatively, in other embodiments, the adjusting bolt 1 can be set as an adjusting screw with reverse threads at both ends, and the two fixing nuts 2 have opposite rotation directions, allowing for length adjustment after installation. For anti-theft purposes, stop blocks can be welded to both ends of the screw after it is tightened to prevent it from being unscrewed.

[0032] Since the adjusting bolt 1 needs to be tightened into place before installation, the size of the protective ring is determined at this time. To achieve the anti-theft function, the size difference between the protective ring and the electrical control cabinet is small. In this embodiment, a hinge 7 is also provided, so that the protective ring can be opened and closed during installation or disassembly. The first plate 41 is located between the first L-shaped protective plate 31 and the second L-shaped protective plate 32, and the second plate 42 is located between the third L-shaped protective plate 33 and the fourth L-shaped protective plate 34. The first plate 41 and the second L-shaped protective plate 32 are connected by a hinge 7. On the side directly opposite the hinge 7, that is, at the end where the third L-shaped protective plate 33 and the second plate 42 are close to each other, there is a first flange 51 on the third L-shaped protective plate 33 and a second flange 52 on the second plate 42. The first flange 51 and the second flange 52 are provided with locking holes 53 for installing locks. When the lock in the locking hole 53 is removed, the protective ring can be opened and closed by the hinge 7, which is convenient for installation and removal from the electrical control cabinet and avoids the operation of only being able to be installed from top to bottom.

[0033] Since hinge 7 and locking hole 53 are required for rotation and locking, and length adjustment is needed on each side, the addition of first plate 41 and second plate 42 increases the number of protective plates, facilitating simultaneous length adjustment and locking, as well as length adjustment and rotation on that side. Of course, in other embodiments, if the electrical control cabinet is large, the number of plates can be increased, such as by placing a plate between the second L-shaped protective plate 32 and the third L-shaped protective plate 33. It is worth noting that after adding plates, the lengths of the opposite sides should be equal.

[0034] Furthermore, to ensure smooth opening and closing of hinge 7, it is necessary to avoid interference with the electrical control cabinet when the third L-shaped protective plate 33 rotates. Therefore, the positions of hinge 7 and locking hole 53 are set eccentrically, and both are offset to the same side relative to the center line of the protective ring. Of course, in other embodiments, the number of hinges 7 can be increased so that there is more than one rotating hinge axis during rotation. Naturally, the installation of hinge 7 requires the addition of a flat plate.

[0035] To protect the electrical control cabinet and reduce impacts, a protective pad is also provided on the inner side of the protective pad to prevent collisions between the electrical control cabinet and the protective plate. In this embodiment, the protective pad is a foam pad 6. Since the fixing nut 2 and adjusting bolt 1 are located on the inner side of the protective plate, the thickness of the foam pad 6 is greater than the nominal diameter of the fixing nut 2. In this embodiment, protective pads are provided on the two right-angled sides of the L-shaped protective plate, and protective pads are also provided on the flat plate.

[0036] When the electrical control cabinet needs to be locked, select the installation position of adjusting bolt 1 according to the size of the electrical control cabinet to make the size of the protective ring fit. Then, open the protective ring at hinge 7, place the protective ring on the outside of the electrical control cabinet, and lock the lock in the locking hole 53. Correspondingly, when it is necessary to open, open the lock, rotate at hinge 7, and open the protective ring.

[0037] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. An anti-theft device for an electrical control cabinet, characterized in that: The device includes a protective ring for surrounding the electrical control cabinet to prevent the cabinet door from opening. The protective ring includes protective plates arranged parallel to the cabinet body or door of the electrical control cabinet. Multiple protective plates are connected end to end. The protective plates include straight flat plates and L-shaped protective plates. The protective ring includes four L-shaped protective plates. Two adjacent protective plates are provided with outwardly protruding flanges with locking holes for locks to pass through. Each side of the protective ring is provided with a length adjustment mechanism that can adjust the length of the side of the protective ring. The protective ring is also provided with hinges for connecting two adjacent protective plates. At least one hinge is provided.

2. The anti-theft device for electrical control cabinets according to claim 1, characterized in that: There is one hinge, and the hinge and the locking hole are respectively located on two opposite sides of the protective ring.

3. The anti-theft device for electrical control cabinets according to claim 2, characterized in that: The hinge and locking hole are eccentrically positioned, and their centers are offset to the same side relative to the center line of the protective ring.

4. The anti-theft device for electrical control cabinets according to any one of claims 1-3, characterized in that: The length adjustment mechanism includes fixing nuts that are fixed to the surfaces of two adjacent protective plates and adjusting bolts that are respectively installed on the two nuts.

5. The anti-theft device for electrical control cabinets according to claim 4, characterized in that: The fixing nut is welded onto the inner side surface of the protective plate.

6. The anti-theft device for electrical control cabinets according to any one of claims 1-3, characterized in that: The inner side of the protective plate is also provided with a protective pad to prevent the electrical control cabinet from bumping into the protective plate.

7. The anti-theft device for electrical control cabinets according to claim 6, characterized in that: Protective pads are provided on the two right-angled sides of the L-shaped protective plate.

8. The anti-theft device for electrical control cabinets according to claim 5, characterized in that: The inner side of the protective plate is also provided with a protective pad to prevent the electrical control cabinet from colliding with the protective plate. The thickness of the protective pad is greater than the nominal diameter of the fixing nut.

9. The anti-theft device for electrical control cabinets according to claim 2 or 3, characterized in that: The hinge is located between the L-shaped protective plate and the flat plate.

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