An arc flash protection device for use in power distribution cabinets

Abstract

This utility model relates to the field of arc flash protection technology and discloses an arc flash protection device for use in a power distribution cabinet. The device includes a mounting frame, an externally fixed mounting plate, a top cover, a connecting plug, an internally inserted optical fiber body, an arc flash probe, a rotatably connected winding roller, a limiting collection mechanism, and an externally mounted auxiliary installation mechanism. During use, the opening and closing degree of the clamping block can be adjusted by pressing a button to accommodate optical fiber cables of different sizes. The movement of the limiting roller ensures constant contact and limiting between the limiting roller and the optical fiber cable. Rotation of the bidirectional threaded rod allows for adjustment of the mounting block position to accommodate different pre-drilled mounting holes in the power distribution cabinet.

Description

Technical Field

[0001] This utility model relates to the field of arc light protection technology, specifically to an arc light protection device applied in a power distribution cabinet. Background Technology

[0002] Distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes). They are the final stage equipment of the power distribution system. When a fault occurs in the internal interval of the switch equipment in the distribution cabinet, the resulting electric arc will cause the pressure and temperature in the switch equipment to increase rapidly. Furthermore, the excessively high temperature at the center of the electric arc can lead to the melting and vaporization of copper busbars and aluminum busbars, the melting of cables, or the ignition of cable sheaths.

[0003] Therefore, in the existing technology, arc flash detectors are installed in the power distribution cabinet and are connected to existing arc flash protection devices via optical fibers for protection. However, in actual use, the arc flash protection device needs to be connected to multiple optical fibers at the same time. A large number of optical fibers piled up near the arc flash protection device are prone to entanglement. This causes other optical fibers to move when one set of optical fibers is repaired, resulting in loosening of the connection between the optical fibers and the arc flash protection device. Therefore, it is necessary to improve the arc flash protection device for use in the power distribution cabinet to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an arc flash protection device for use in power distribution cabinets, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an arc flash protection device for use in a power distribution cabinet, comprising a mounting frame, an mounting plate fixedly connected to the outside of the mounting frame, a cover plate provided on the top of the mounting frame, a connecting plug fixedly connected to the front of the mounting frame, an optical fiber body inserted into the connecting plug, an arc flash probe fixedly connected to the front of the optical fiber body, a winding roller rotatably connected inside the mounting frame, a limiting collection mechanism provided inside the mounting frame, and an auxiliary installation mechanism provided outside the arc flash probe;

[0006] The limiting and collecting mechanism includes a limiting component and a collecting component. The limiting component is disposed inside the mounting frame, and the collecting component is disposed inside the mounting frame.

[0007] Preferably, the limiting component includes a limiting platform, which is fixedly connected inside the mounting frame. A button is slidably connected inside the limiting platform, and a first spring is fixedly connected inside the limiting platform. An elastic clamping ring is fixedly connected to the end of the first spring away from the limiting platform. A clamping block is fixedly connected to the inner side of the elastic clamping ring, and a sliding rod is fixedly connected to the end of the elastic clamping ring near the first spring. This facilitates the adjustment of the opening and closing degree of the clamping block, thereby meeting the requirements for contact clamping of optical fiber cables of different sizes and avoiding accidents such as loosening during use.

[0008] Preferably, the button contacts the elastic clamping ring, and the limiting platform has a groove at the corresponding position of the slide rod, and the slide rod is slidably connected inside the groove, which facilitates a more stable limiting process.

[0009] Preferably, the collecting component includes a first fixing block, which is fixedly connected inside the mounting frame. A rotating frame is rotatably connected inside the first fixing block, and a limiting roller is rotatably connected inside the rotating frame. A second fixing block is fixedly connected to the right side of the rotating frame, and a first rotating block is rotatably connected inside the second fixing block. A third fixing block is fixedly connected inside the mounting frame, and a second rotating block is rotatably connected inside the third fixing block. A damping rod is fixedly connected to one end of the second rotating block near the first rotating block, and a second spring is fixedly connected to one end of the second rotating block near the first rotating block. This facilitates ensuring that the limiting roller and the optical fiber cable are always in contact and limited, preventing accidents such as loosening.

[0010] Preferably, the damping rod is fixedly connected to the first rotating block, and the second spring is fixedly connected to the first rotating block, which facilitates a more stable winding process.

[0011] Preferably, the auxiliary installation mechanism includes a connecting platform, which is fixedly connected to the outside of the arc probe. A bidirectional threaded rod is rotatably connected inside the connecting platform. A limit rod is fixedly connected inside the connecting platform. A movable block is slidably connected to the outside of the limit rod. An installation block is fixedly connected to the outside of the movable block, which facilitates the adjustment of the position of the installation block, thereby meeting the adaptation installation requirements of different reserved installation hole positions of the distribution cabinet.

[0012] Preferably, the movable block is threadedly connected to the bidirectional threaded rod, and a groove is provided at the corresponding position of the connecting platform and the movable block, and the movable block is slidably connected inside the groove, which facilitates a more stable installation process.

[0013] Compared with the prior art, this utility model provides an arc flash protection device for use in power distribution cabinets, which has the following beneficial effects:

[0014] 1. This arc flash protection device, applied in power distribution cabinets, uses a limit collection mechanism. During use, the elastic clamping ring moves by pressing a button, facilitating the adjustment of the clamping block's opening and closing degree. This allows for the contact clamping of fiber optic cables of different sizes, preventing accidental loosening during use. The movement of the limit roller causes the rotating frame to rotate inside the first fixed block, ensuring that the limit roller and the fiber optic cable are always in contact and limited, preventing accidental loosening.

[0015] 2. This arc flash protection device, applied in the distribution cabinet, uses an auxiliary installation mechanism. During use, the bidirectional threaded rod rotates in conjunction with a limit rod to facilitate the adjustment of the mounting block position, thereby meeting the needs of different reserved mounting hole positions in the distribution cabinet. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the limiting component of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the collection component of this utility model;

[0022] Figure 6 This is a schematic diagram of the auxiliary installation mechanism of this utility model;

[0023] Figure 7 This is a schematic diagram of the internal structure of the auxiliary installation mechanism of this utility model.

[0024] In the diagram: 1. Mounting frame; 2. Mounting plate; 3. Cover plate; 4. Connecting plug; 5. Fiber optic body; 6. Arc probe; 7. Winding roller; 8. Limiting and collecting mechanism; 81. Limiting component; 811. Limiting platform; 812. Button; 813. Slide rod; 814. Elastic clamping ring; 815. Clamping block; 816. First spring; 82. Collecting component; 821. First fixing block; 822. Rotating frame; 823. Limiting roller; 824. Second fixing block; 825. First rotating block; 826. Third fixing block; 827. Second rotating block; 828. Damping rod; 829. Second spring; 9. Auxiliary installation mechanism; 91. Connecting platform; 92. Bidirectional threaded rod; 93. Movable block; 94. Mounting block; 95. Limiting rod. Detailed Implementation

[0025] 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.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0027] Please see Figure 1-5 This utility model provides a technical solution: an arc light protection device applied in a power distribution cabinet, including a mounting frame 1, a mounting plate 2 fixedly connected to the outside of the mounting frame 1, a cover plate 3 provided on the top of the mounting frame 1, a connecting plug 4 fixedly connected to the front of the mounting frame 1, an optical fiber body 5 inserted into the connecting plug 4, an arc light probe 6 fixedly connected to the front of the optical fiber body 5, a winding roller 7 rotatably connected inside the mounting frame 1, a limiting collection mechanism 8 provided inside the mounting frame 1, and an auxiliary installation mechanism 9 provided outside the arc light probe 6.

[0028] The limiting and collecting mechanism 8 includes a limiting component 81 and a collecting component 82. The limiting component 81 is disposed inside the mounting frame 1, and the collecting component 82 is disposed inside the mounting frame 1.

[0029] Furthermore, the limiting component 81 includes a limiting platform 811, which is fixedly connected inside the mounting frame 1. A button 812 is slidably connected inside the limiting platform 811, and a first spring 816 is fixedly connected inside the limiting platform 811. An elastic clamping ring 814 is fixedly connected to the end of the first spring 816 away from the limiting platform 811. A clamping block 815 is fixedly connected to the inner side of the elastic clamping ring 814, and a sliding rod 813 is fixedly connected to the end of the elastic clamping ring 814 near the first spring 816. This facilitates the adjustment of the opening and closing degree of the clamping block 815, thereby meeting the requirements for contact clamping of optical fiber cables of different sizes and avoiding accidents such as loosening during use.

[0030] Furthermore, the button 812 contacts the elastic clamping ring 814, and the limiting platform 811 and the corresponding position of the slide bar 813 are provided with grooves, and the slide bar 813 is slidably connected inside the groove, which makes the limiting process more stable.

[0031] Furthermore, the collecting component 82 includes a first fixing block 821, which is fixedly connected inside the mounting frame 1. A rotating frame 822 is rotatably connected inside the first fixing block 821. A limiting roller 823 is rotatably connected inside the rotating frame 822. A second fixing block 824 is fixedly connected to the right side of the rotating frame 822. A first rotating block 825 is rotatably connected inside the second fixing block 824. A third fixing block 826 is fixedly connected inside the mounting frame 1. A second rotating block 827 is rotatably connected inside the third fixing block 826. A damping rod 828 is fixedly connected to one end of the second rotating block 827 near the first rotating block 825. A second spring 829 is fixedly connected to one end of the second rotating block 827 near the first rotating block 825. This ensures that the limiting roller 823 is always in contact with the optical fiber cable, preventing accidental loosening.

[0032] Furthermore, the damping rod 828 is fixedly connected to the first rotating block 825, and the second spring 829 is fixedly connected to the first rotating block 825, which facilitates a more stable winding process. Example

[0033] Based on Example 1, please refer to Figure 6-7 Furthermore, in conjunction with Embodiment 1, the auxiliary installation mechanism 9 includes a connecting platform 91, which is fixedly connected to the outside of the arc probe 6. A bidirectional threaded rod 92 is rotatably connected inside the connecting platform 91. A limiting rod 95 is fixedly connected inside the connecting platform 91. A movable block 93 is slidably connected outside the limiting rod 95. An installation block 94 is fixedly connected outside the movable block 93, which facilitates the adjustment of the position of the installation block 94, thereby meeting the adaptation and installation requirements of different reserved installation hole positions of the power distribution cabinet.

[0034] Furthermore, the movable block 93 is threadedly connected to the bidirectional threaded rod 92, and the connecting platform 91 has a groove at the corresponding position of the movable block 93, and the movable block 93 is slidably connected inside the groove, which makes the installation process more stable.

[0035] In actual operation, when this device is used, the relevant external moving parts can be sealed and dustproofed using sealing rings, etc. First, the staff moves the device to the designated installation position on the distribution cabinet and uses the mounting bolts to complete the installation between the mounting plate 2 and the distribution cabinet. The staff then adjusts according to the reserved mounting holes on the distribution cabinet. The staff uses tools such as a hex wrench to rotate the bidirectional threaded rod 92. The rotation of the bidirectional threaded rod 92, in conjunction with the limit rod 95, causes the moving block 93 to move, thereby adjusting the position of the mounting block 94. With the installation bolts, the arc probe 6 is installed between the distribution cabinet. After installation, the fiber optic body 5 is plugged into the connector 4. Correspondingly, the mounting frame 1 limits the excess fiber optic cables connected to external equipment. The staff presses button 812, which is set to... 2. Movement causes the elastic clamping ring 814 to move, cooperating with the clamping block 815, causing the slide rod 813 to slide inside the limiting platform 811, thereby adjusting the opening and closing degree of the clamping block 815. After the optical fiber cable is passed through the clamping block 815, the button 812 is released. Under the action of the first spring 816, the clamping block 815 contacts and clamps the optical fiber cable. After clamping, the excess optical fiber cable is wound around the winding roller 7. The movement of the optical fiber cable causes the limiting roller 823 to move. The movement of the limiting roller 823 causes the rotating frame 822 to rotate inside the first fixed block 821. Cooperating with the second fixed block 824, the first rotating block 825 moves. Cooperating with the damping rod 828 and the second spring 829, the second rotating block 827 rotates inside the third fixed block 826, ensuring that the limiting roller 823 and the optical fiber cable are always in contact and limited, avoiding accidental loosening.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An arc flash protection device for use in a power distribution cabinet, comprising a mounting frame (1), characterized in that: The mounting frame (1) is fixedly connected to the outside of the mounting plate (2), the top of the mounting frame (1) is provided with a cover plate (3), the front of the mounting frame (1) is fixedly connected with a connector (4), the connector (4) is inserted into the fiber body (5), the front of the fiber body (5) is fixedly connected with an arc light probe (6), the inside of the mounting frame (1) is rotatably connected with a winding roller (7), the inside of the mounting frame (1) is provided with a limit collection mechanism (8), and the outside of the arc light probe (6) is provided with an auxiliary installation mechanism (9). The limiting and collecting mechanism (8) includes a limiting component (81) and a collecting component (82). The limiting component (81) is disposed inside the mounting frame (1), and the collecting component (82) is disposed inside the mounting frame (1).

2. The arc flash protection device applied in a power distribution cabinet according to claim 1, characterized in that: The limiting component (81) includes a limiting platform (811), which is fixedly connected inside the mounting frame (1). A button (812) is slidably connected inside the limiting platform (811). A first spring (816) is fixedly connected inside the limiting platform (811). An elastic clamping ring (814) is fixedly connected to the end of the first spring (816) away from the limiting platform (811). A clamping block (815) is fixedly connected to the inner side of the elastic clamping ring (814). A sliding rod (813) is fixedly connected to the end of the elastic clamping ring (814) near the first spring (816).

3. The arc flash protection device applied in a power distribution cabinet according to claim 2, characterized in that: The button (812) contacts the elastic clamp (814), and the limiting platform (811) and the slide rod (813) are provided with grooves at corresponding positions, and the slide rod (813) is slidably connected inside the groove.

4. The arc flash protection device applied in a power distribution cabinet according to claim 1, characterized in that: The collecting component (82) includes a first fixing block (821), which is fixedly connected inside the mounting frame (1). A rotating frame (822) is rotatably connected inside the first fixing block (821). A limiting roller (823) is rotatably connected inside the rotating frame (822). A second fixing block (824) is fixedly connected to the right side of the rotating frame (822). A first rotating block (825) is rotatably connected inside the second fixing block (824). A third fixing block (826) is fixedly connected inside the mounting frame (1). A second rotating block (827) is rotatably connected inside the third fixing block (826). A damping rod (828) is fixedly connected to one end of the second rotating block (827) near the first rotating block (825). A second spring (829) is fixedly connected to one end of the second rotating block (827) near the first rotating block (825).

5. An arc flash protection device for use in a power distribution cabinet according to claim 4, characterized in that: The damping rod (828) is fixedly connected to the first rotating block (825), and the second spring (829) is fixedly connected to the first rotating block (825).

6. An arc flash protection device for use in a power distribution cabinet according to claim 1, characterized in that: The auxiliary installation mechanism (9) includes a connecting platform (91), which is fixedly connected to the outside of the arc probe (6). A bidirectional threaded rod (92) is rotatably connected inside the connecting platform (91). A limit rod (95) is fixedly connected inside the connecting platform (91). A movable block (93) is slidably connected outside the limit rod (95). An installation block (94) is fixedly connected outside the movable block (93).

7. An arc flash protection device for use in a power distribution cabinet according to claim 6, characterized in that: The movable block (93) is threadedly connected to the bidirectional threaded rod (92). The connecting platform (91) has a groove at the corresponding position of the movable block (93), and the movable block (93) is slidably connected inside the groove.

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