A kind of relay protection device

Abstract

The utility model provides a kind of relay protection device belongs to circuit protection technical field. Including device cabinet, the inside of device cabinet is equipped with two mounting racks, and several mounting plates are fixedly connected between two mounting racks;Translation mechanism, the translation mechanism is used to move outside the mounting rack, and the translation mechanism is connected with the cabinet. The utility model can move outside the mounting rack and its relay protector inside relay protection device during the process that maintenance personnel overhauls relay protection device by the design of translation mechanism, so that maintenance personnel can realize the overhaul inside relay protection device outside, greatly increase the operation space when overhauling, reduce the overhaul difficulty and complexity, improve the overhaul efficiency and security.

Description

Technical Field

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

[0002] Relay protection devices are an important automation measure and equipment in power systems. When a fault occurs in a power component (such as a generator or line) or the power system itself, endangering the safe operation of the power system, it can promptly issue a warning signal to the operating personnel or directly issue a trip command to the controlled circuit breaker to terminate the development of these events.

[0003] Relay protection devices typically consist of a cabinet housing multiple relay protectors. The relay protectors are installed inside the cabinet. Because the internal components of the relay protection device affect the safety of the entire circuit, frequent maintenance is required. Due to the limited space inside the cabinet, maintenance personnel must perform meticulous operations and inspections within this confined space, undoubtedly increasing the difficulty and complexity of the work. Furthermore, the limited movement of maintenance personnel within the cabinet makes it difficult for them to maintain a stable posture and movements during maintenance, further increasing the difficulty and risk of the work. Therefore, this utility model provides a relay protection device to meet these needs. Utility Model Content

[0004] The technical problem this utility model aims to solve is to provide a relay protection device that addresses the issue of users entering the interior of the relay protection device for maintenance. The cabinet interior space is small, requiring users to perform detailed operations and inspections within a limited space. The confined operating space restricts the user's range of motion, making it difficult for the user to maintain a stable posture and movements during maintenance, thus increasing the instability and risk of the work.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A relay protection device includes a device cabinet, inside which are provided two mounting brackets and a plurality of mounting plates are fixedly connected between the two mounting brackets; and a translation mechanism for moving the mounting brackets outward, the translation mechanism being connected to the cabinet.

[0007] Optionally, the translation mechanism includes a fixed frame, one end of which is screwed to a fixed plate on the inner wall of the device cabinet. A rotating shaft is fixedly connected to the other end of the fixed plate and the fixed frame facing the opening of the device cabinet. A guide rail is rotatably connected to the outside of the rotating shaft. Guide sleeves are fixedly connected to the two mounting brackets on the side facing the inner wall of the device cabinet. The guide sleeves are slidably connected to the outside of the fixed frame and the guide rail. An installation groove is provided on the outside of the fixed frame.

[0008] Optionally, a deformation cavity is provided inside one side of the guide rail, and a protrusion is fixedly connected to the outer wall of the guide rail.

[0009] Optionally, a wire-locking groove is provided on one side of the guide rail, and the number of wire-locking grooves is several, with the openings of the wire-locking grooves all located on one side relative to the inner wall of the device cabinet.

[0010] Optionally, each of the slots has an arc-shaped guide surface at its opening.

[0011] Optionally, the guide sleeve has a slot inside, the inside of the slot is adapted to the outside of the guide rail, and there is a gap between the inside of the slot and the outside of the guide rail.

[0012] Optionally, the guide sleeve has a limiting protrusion inside, and the guide rail has a limiting groove on the outside that matches the limiting protrusion.

[0013] Optionally, the length of the two guide rails joined together is the same as the length of the mounting plate.

[0014] Optionally, the fixing bracket has the same external shape as the guide rail, and the length of the fixing bracket is less than the length of the guide rail.

[0015] Optionally, the mounting plate has a plurality of mounting holes that are equidistantly arranged inside.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] In the above scheme, the design of the translation mechanism allows the mounting bracket and relay protector inside the relay protection device to be moved outward during the maintenance personnel's inspection of the relay protection device. This enables the maintenance personnel to perform internal inspections of the relay protection device from the outside, greatly increasing the operating space during maintenance, reducing the difficulty and complexity of maintenance, and improving maintenance efficiency and safety.

[0018] By setting up guide rails, the guide rails can be bent to bring them closer to the mounting plate during normal use. The wire clamping grooves inside the guide rails can neatly clamp and fix the circuits of the relay protector, effectively avoiding the problems of messy and tangled circuits. Moreover, it can prevent the guide rails from occupying the internal space of the cabinet, further improving the efficiency and safety of the relay protection device. Attached Figure Description

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0020] Figure 1 A three-dimensional structural diagram of a relay protection device;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of the relay protection device;

[0022] Figure 3 A schematic diagram of the three-dimensional structure of the translation mechanism;

[0023] Figure 4 A schematic diagram of the three-dimensional structure for mounting bracket assembly;

[0024] Figure 5 A schematic diagram of the three-dimensional structure of the translation mechanism;

[0025] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point A in the diagram;

[0026] Figure 7 for Figure 4 A magnified schematic diagram of the structure at point B in the diagram.

[0027] [Figure Labels]

[0028] 1. Device cabinet; 2. Mounting bracket; 3. Mounting plate; 4. Rotating shaft; 5. Fixing bracket; 501. Mounting groove; 6. Guide rail; 601. Limiting groove; 602. Protrusion; 7. Guide sleeve; 701. Limiting protrusion; 702. Card slot; 8. Cable slot.

[0029] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0030] The present invention provides a relay protection device in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0031] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0032] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0033] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0034] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0035] like Figures 1 to 7As shown, an embodiment of the present invention provides a relay protection device, including a device cabinet 1. The device cabinet 1 has two mounting brackets 2 inside, and a plurality of mounting plates 3 are installed between the two mounting brackets 2. The mounting plates 3 have a plurality of mounting holes that are equidistantly arranged inside.

[0036] The relay protection device also includes a translation mechanism, which is used to move the mounting bracket 2 outward. The translation mechanism is connected to the cabinet 1. The translation mechanism includes a fixed bracket 5. One end of the fixed bracket 5 is screwed to the inner wall of the device cabinet 1, and the other end is fixedly connected to a rotating shaft 4. A guide rail 6 is rotatably connected to the outside of the rotating shaft 4. Guide sleeves 7 are fixedly connected to the section of each mounting bracket 2 away from the dry mounting plate 3. The guide sleeves 7 are slidably connected to the outside of the guide rail 6.

[0037] A deformation cavity is provided on the side of the guide rail 6 near the guide sleeve 7. A slot 702 is provided inside the guide sleeve 7. The slot 702 fits onto the outside of the guide rail 6. Specifically, the inside of the slot 702 is adapted to the outside of the guide rail 6. There is a gap between the inside of the slot 702 and the outside of the guide rail 6. A limiting protrusion 701 is provided on the slot 702. A limiting groove 601 is provided on the outside of the guide rail 6. The limiting protrusion 701 is locked in the limiting groove 601. The limiting protrusion 701 and the limiting groove 601 are adapted to each other. A protrusion 602 is fixedly connected to the outer wall of the guide rail 6. The structure of the protrusion 602 forms a step with the guide rail 6. The step and the contour of the C-shaped structure at the opening of the slot 702 of the guide sleeve 7 form a matching engagement, thereby improving the fit between the guide rail 6 and the guide sleeve 7. This improves the stability of the structural fit between the guide rail 6 and the guide sleeve 7, so that the guide sleeve 7 will not be misaligned or detached from the guide rail 6.

[0038] Specifically, the length of the two guide rails 6 spliced ​​together is the same as the length of the mounting plate 3, and the length of the fixing bracket 5 is less than the length of the guide rail 6. Multiple fixing brackets 5 are installed at equal intervals on both sides of the inner cavity of the device cabinet 1 by bolts. This arrangement saves materials and can improve the limiting effect between the fixing bracket 5 and the guide rail 6, thereby further ensuring the stability of the fixing bracket 5 structure.

[0039] Specifically, the outside of the fixing frame 5 is provided with an installation groove 501. The outside of the fixing frame 5 is adapted to the inside of the slot 702, and the limiting protrusion 701 can be locked in the installation groove 501. The installation process of the fixing frame 5 and the guide sleeve 7 is as follows: the guide sleeve 7 is aligned with the outside of the fixing frame 5 and pressed. During the process of the slot 702 of the guide sleeve 7 pressing the outside of the fixing frame 5, the guide sleeve 7 elastically avoids, so that the slot 702 of the guide sleeve 7 slides on the outside of the fixing frame 5 until the slot limiting protrusion 701 is locked in the installation groove 501. The guide sleeve 7 is locked on the outside of the fixing frame 5. More specifically, the installation groove 501 and the limiting groove 601 are in a docking state, so that the slot limiting protrusion 701 can smoothly slide from the installation groove 501 into the limiting groove 601.

[0040] Specifically, several mounting plates 3 are installed between the two mounting brackets 2, and the relay protector is installed outside the mounting hole, thus completing the overall installation of the relay protection device.

[0041] During use, when maintenance of the relay protection device is required, the guide rail 6 is turned so that it rotates around the rotating shaft 4 until the end of the guide rail 6 is against the end of the fixing frame 5. At this time, the fixing frame 5 and the guide rail 6 are arranged in a straight line, and the mounting groove 501 and the limiting groove 601 are aligned. Pulling the mounting frame 2 outward, the slot limiting protrusion 701 of the guide sleeve 7 moves along the mounting groove 501 of the fixing frame 5 into the limiting groove 601 of the guide rail 6. Continuing to pull the mounting frame 2 outward, the slot limiting protrusion 701 of the guide sleeve 7 moves outward along the limiting groove 601 of the guide rail 6. When it moves to the outward end of the guide rail 6, the relay protection device can be maintained. This allows maintenance personnel to perform internal maintenance of the relay protection device from the outside, greatly increasing the operating space during maintenance, reducing the difficulty and complexity of maintenance, and improving maintenance efficiency and safety.

[0042] In this embodiment, as Figure 5 As shown, a cable clamping groove 8 is provided on one side of the guide rail 6. There are several cable clamping grooves 8, and the openings of the cable clamping grooves 8 are all located on the side opposite to the inner wall of the device cabinet 1. The openings of the cable clamping grooves 8 are all provided with arc-shaped guide surfaces. During normal use, the guide rail 6 can be rotated and bent through the rotating shaft, so that the guide rail 6 is bent to the front of the mounting plate 3. The bend of the guide rail 6 can prevent the guide sleeve 7 from moving. Since the guide rail 6 is close to the mounting plate 3, the cables of the relay protectors installed on the outside of the mounting plate 3 can be limited by the cable clamping grooves 8. The bundled cables are aligned with the cable clamping grooves 8 located on their front and pressure is applied, so that the cables can move forward through the arc-shaped guide surfaces and enter the interior of the cable clamping grooves 8 by compression, thereby limiting and fixing the cables. This not only prevents the guide rail 6 from occupying the space inside the cabinet, but also limits and fixes the cables of the relay protectors, improving practicality.

[0043] It should be noted that the heat dissipation and other internal mechanisms involved in the above scheme are existing technologies, and therefore are not described in detail.

[0044] The working process of this utility model is as follows:

[0045] Inside the cabinet 1, multiple mounting brackets 5 are installed at equal intervals using bolts. The guide sleeve 7 outside the mounting bracket 2 is aligned with the mounting bracket 5. The guide sleeve 7 squeezes the mounting bracket 5 and elastically avoids it. Then, it is fitted over the outside of the mounting bracket 5 and moves forward until the guide sleeve 7 is engaged with the outside of the mounting bracket 5. Several mounting plates 3 are installed between the two mounting brackets 2, and relay protectors are installed outside the mounting holes of the mounting plates 3. The guide rail 6 is rotated and bent to the front of the mounting plate 3 so that the cables outside the mounting plate 3 can be limited by the cable clamping groove 8. The bundled cables are aligned with the cable clamping groove 8, and the cables enter the cable clamping groove 8 under the guidance of the arc-shaped guide surface, completing the cable fixation. The guide rail 6 remains bent and close to the mounting plate 3, which does not obstruct the equipment on the mounting plate 3, but can fix the cables. The relay protectors installed outside the mounting holes perform normal power protection work.

[0046] When it is necessary to inspect and repair the relay protection device, first remove all the cables on the guide rail 6 and pull them straight outwards so that one end of the guide rail 6 overlaps with the fixed frame 5. Pull the mounting frame 2, and the guide sleeve 7 slides on the fixed frame 5 and the guide rail 6 to move the mounting frame 2, the mounting plate 3 on it, and the relay protection device outwards. After the mounting frame 2 is moved outwards, the maintenance personnel have more operating space outside to carry out the maintenance work, which reduces the difficulty and complexity of the maintenance. After the maintenance is completed, push the mounting frame 2 back to its original position, and the guide sleeve 7 slides along the guide rail 6 to the initial position again. The guide rail 6 rotates and bends back to the front of the mounting plate 3, and the cables are fixed again.

[0047] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the preferred embodiments; however, those skilled in the art can fully understand this utility model without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A relay protection device, comprising a device cabinet, characterized in that, The device cabinet is equipped with two mounting racks inside, and several mounting plates are fixedly connected between the two mounting racks. A translation mechanism is provided for moving the mounting bracket outwards, and the translation mechanism is connected to the cabinet.

2. The relay protection device according to claim 1, characterized in that, The translation mechanism includes a fixed frame, one end of which is screwed to the inner wall of the device cabinet, and the other end of which is fixedly connected to a rotating shaft. A guide rail is rotatably connected to the outside of the rotating shaft. Guide sleeves are fixedly connected to the two mounting brackets on the side facing the inner wall of the device cabinet. The guide sleeves are slidably connected to the outside of the fixed frame and the guide rail. An installation groove is provided on the outside of the fixed frame.

3. The relay protection device according to claim 2, characterized in that, A deformation cavity is provided inside one side of the guide rail, and a protrusion is fixedly connected to the outer wall of the guide rail.

4. The relay protection device according to claim 3, characterized in that, The guide rail has a wire-locking groove on one side, and there are several wire-locking grooves, with the openings of the wire-locking grooves all located on one side relative to the inner wall of the device cabinet.

5. The relay protection device according to claim 4, characterized in that, The openings of the wire slots are all provided with arc-shaped guide surfaces.

6. The relay protection device according to claim 2, characterized in that, The guide sleeve has a slot inside, which is adapted to the outside of the guide rail, and there is a gap between the inside of the slot and the outside of the guide rail.

7. The relay protection device according to claim 6, characterized in that, The guide sleeve has a limiting protrusion inside, and the guide rail has a limiting groove on the outside that matches the limiting protrusion.

8. The relay protection device according to claim 2, characterized in that, The length of the two guide rails joined together is the same as the length of the mounting plate.

9. The relay protection device according to claim 2, characterized in that, The fixing bracket has the same external shape as the guide rail, and the length of the fixing bracket is less than the length of the guide rail.

10. The relay protection device according to claim 1, characterized in that, The mounting plate has several mounting holes that are equidistantly arranged inside.

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