Detachable and recyclable modularized relay protection device

Abstract

The invention discloses a detachable and recyclable modularized relay protection device, and belongs to the technical field of reutilization of retired power equipment, the detachable and recyclable modularized relay protection device comprises a box body, and connecting blocks are arranged on the two sides of the inner wall of the box body. According to the detachable and recyclable modularized relay protection device, the interior of the box body is divided into a plurality of layers through the supporting plates of the supporting assembly, various devices of the relay protection device can be installed in a modularized mode conveniently, external cold air is introduced through the air inlet, and the reliability of the device is improved. Hot air in the box body is forcibly pumped out through the cooling fan at the air outlet in the left side, a directional airflow path is formed, equipment and electronic elements in the box body are efficiently cooled, the accuracy of protection logic judgment is ensured, and the sliding block assembly can be fixedly installed through the guide rail assembly. And through cooperation of a first spring and a second spring, automatic contraction of the fixing rod can be achieved, the dismounting time of retired equipment is shortened, and the equipment dismounting efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of recycling of decommissioned power equipment, in particular to a detachable and recyclable modularized relay protection device. BACKGROUND

[0002] The recycling technology of decommissioned power equipment refers to the technology of reusing equipment that has been technically evaluated and identified, establishing a recycling mechanism for decommissioned equipment, and detecting and repairing it for reuse. The equipment that is no longer in operation due to capacity expansion, relocation, system upgrade, or change of operating location, and the equipment that can be reused after repair, technical identification, and economic evaluation, has recycling value. These materials mainly include transformers, transformers, circuit breakers, disconnectors, arresters, capacitors, switch cabinets, pole-mounted load switches, vacuum switches, cables, secondary equipment, towers, conductors, and insulators.

[0003] In the recycling of decommissioned power equipment, the relay protection device can quickly detect line or equipment faults (such as short circuits, overloads, etc.), and automatically cut off the fault area to prevent the spread of faults to other healthy equipment. By selecting only the faulty part, it monitors the abnormal operation of the power equipment (such as ground faults, transformer overloads, etc.) in real time and sends an alarm signal to prompt maintenance personnel to handle it.

[0004] The prior art (Chinese patent with publication number CN112421451B and publication date 2022-06-24) discloses a relay protection device, which includes a shell, a relay protection device body, and a baffle. A heat absorbing coil is installed in the shell, one end of the heat absorbing coil is connected to a water pump, and air circulation blows the heat generated by the relay protection device body into the air outlet cover through the air outlet, improving the heat dissipation performance, and reducing the shock of the relay protection device, preventing damage to the internal electrical components caused by external vibration. The prior art (Chinese patent with publication number CN119518635A and publication date 2025-02-25) discloses a new relay protection device for distribution networks, which includes an incoming line, the incoming line has a modularized layered mechanism on one side surface, the inner side surface of the modularized layered mechanism is provided with a current detection device, a voltage detection device, a phase detector, a tripping device, a frequency power detector, and a device supply power source. The modularized layered design is adopted, compared with the traditional non-modularized relay protection device, each instrument is fixed on the support plate of different levels through the fixed angle slot and the fixed cap, when a certain component fails, maintenance personnel can open the front door or the rear door.

[0005] The prior art (Chinese patent with publication number CN118889321A and publication date of 2024-11-01) discloses a relay protection device, which comprises a shell, a first support, a second support and a wire clamping assembly. The first support is arranged in the shell; the second support is slidably connected to the first support along a first direction, and the second support is provided with a clamping portion; the wire clamping assembly comprises a wire clamping member for clamping a wire harness, and the wire clamping assembly can move along a second direction and be clamped to the clamping portion. The relay protection device allows the wire clamping assembly to move along the first direction and the second direction to flexibly clamp wire harnesses at different positions, avoiding disordered wire harnesses and improving the neatness of the relay protection device.

[0006] The existing relay protection device can be disassembled and recycled when the internal mutual inductor, circuit breaker and disconnecting switch of the relay protection device reach the retirement standard after long-term work. However, the traditional devices and the shell of the relay protection device are usually fixed by bolts, which takes a long time to install and disassemble, affecting the maintenance efficiency. SUMMARY

[0007] The present application aims to provide a modular relay protection device that can be disassembled and recycled, to solve the problem of the traditional devices and the shell of the relay protection device being fixed by bolts, which takes a long time to install and disassemble, affecting the maintenance efficiency when the internal devices of the relay protection device reach the retirement standard.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solution: a modular relay protection device that can be disassembled and recycled, comprising: a box body, the inner wall of the box body is provided with a connecting block on both sides.

[0009] The connecting block is L-shaped, and a support assembly is inserted and installed on the top surface of the connecting block. The top surface of the support assembly is fixedly connected with a guide rail assembly. The outer wall of the guide rail assembly is slidably connected with a sliding block assembly. The top of the sliding block assembly is fixedly connected with the device. The sliding block assembly is positioned and installed with the guide rail assembly through a positioning member, and the guide rail assembly is fixed with the sliding block assembly through a fixing member.

[0010] One side surface of the box body is provided with an air outlet, and the inside of the air outlet is provided with a cooling fan. One side of the cooling fan is provided with a motor. The other side surface of the box body is provided with an air inlet, and a dust screen is arranged at the air inlet.

[0011] Preferably, the support assembly comprises a support plate inserted and installed on the top surface of the connecting block. The inner wall of the support plate is provided with a toothed groove on both sides, and the inner wall of the connecting block is provided with a toothed protrusion. The support plate and the connecting block form an insertion structure through the toothed groove and the toothed protrusion.

[0012] Preferably, the top surface of the support plate is provided with air permeable holes, and the air permeable holes are distributed equidistantly on the top surface of the support plate.

[0013] Preferably, the top of the support plate is provided with a first fixing bolt, the inner wall of the support plate is provided with a first limiting hole in a penetrating manner, and the top surface of the connecting block is provided with a second limiting hole.

[0014] Preferably, the guide rail assembly comprises a guide rail body fixedly connected to the top surface of the support plate, the top surface of the guide rail body is provided with first through holes, the first through holes are distributed equidistantly on the top surface of the guide rail body, one side surface of the guide rail body is provided with second through holes, and the second through holes are distributed equidistantly on the one side surface of the guide rail body.

[0015] Preferably, the fixing member comprises an adjusting strip slidingly installed on the inner wall of the guide rail body, one end of the adjusting strip is provided with a plug rod, the outer portion of the plug rod is provided with a first spring, the adjusting strip and the guide rail body constitute an elastic mechanism through the plug rod and the first spring, the top surface and one side surface of the adjusting strip are attached with rollers, the outer wall of the roller is rotatably connected with a support, the top of the support is provided with a fixing rod, the outer portion of the fixing rod is provided with a second spring, and the roller, the support, the fixing rod and the second spring constitute an elastic mechanism with the guide rail body.

[0016] Preferably, the one side surface of the adjusting strip is provided with a third limiting hole, the one side surface of the guide rail body is provided with a fourth limiting hole, and the fourth limiting hole is provided with a second fixing bolt on one side.

[0017] Preferably, the sliding block assembly comprises a sliding block body slidingly connected to the outer wall of the guide rail body, the top surface of the sliding block body is provided with a third through hole, and one side surface of the sliding block body is provided with a fourth through hole.

[0018] Preferably, the positioning member comprises a spring latch installed on one side surface of the sliding block body, the outer wall of the guide rail body is provided with a pin hole, the pin holes are distributed equidistantly on the one side surface of the guide rail body, and the pin holes correspond to the first through holes, the second through holes, the third through holes and the fourth through holes one by one.

[0019] Preferably, the top surface and one side surface of the adjusting strip are provided with V-shaped grooves, and the V-shaped grooves are distributed equidistantly on the top surface and one side surface of the adjusting strip.

[0020] Compared with the prior art, the beneficial effects of the present application are as follows: the modularized relay protection device can be disassembled and recycled, 1. The detachable recycling modularized relay protection device is provided with a connecting block and a supporting assembly, the supporting plate is engaged with the tooth-shaped protrusions on the inner wall of the connecting block through the tooth-shaped grooves on the two sides of the inner wall, the supporting plate and the connecting block are horizontally inserted and installed, and are fixed through the first fixing bolts, so that the installation precision of the supporting plate and the connecting block is improved, and the connecting strength of the supporting plate and the connecting block is improved, the inside of the box body is divided into multiple levels through the supporting plate of the supporting assembly, the modularized installation of various devices of the relay protection device is facilitated, and the maintenance efficiency is improved.

[0021] 2. The detachable recycling modularized relay protection device is provided with an air outlet and an air inlet, the air outlet, the heat dissipation fan and the air inlet correspond to different layers in the inside of the box body respectively, external cold air is introduced through the air inlet, the hot air in the inside of the box body is forcedly extracted through the heat dissipation fan of the left air outlet, a directional airflow path is formed, the devices and electronic elements in the inside of the box body are prevented from causing parameter drift due to overheating, and the accuracy of protection logic judgment is ensured.

[0022] 3. The detachable recycling modularized relay protection device is provided with a guide rail assembly and a sliding block assembly, the sliding block assembly is slidingly installed on the outer wall of the guide rail assembly, the sliding block assembly is installed and positioned through the cooperation of the spring catch on one side of the sliding block assembly and the pin hole on one side of the guide rail body, the installation efficiency is effectively improved, and the installation time is shortened, the sliding block assembly is fixed through the multiple fixing rods of the guide rail assembly inserted into the multiple third through holes and fourth through holes in the inner wall of the sliding block body, when the internal devices of the relay protection device reach the retirement standard after long-term work, the second fixing bolt can be pulled out of the fourth limiting hole and the third limiting hole, the fixing of the second fixing bolt on the adjusting strip is released, the elastic action of the first spring drives the adjusting strip to slide on the inner wall of the guide rail body, the roller moves downward along the slope on one side of the V-shaped groove from the protruding part of the adjusting strip and stays in the V-shaped groove, in this process, the second spring also gradually returns to the normal state, the bracket and the fixing rod move downward, the fixing rod is retracted into the guide rail body, the automatic retraction of the fixing rod is realized through the cooperation of the first spring and the second spring, the disassembly time of the retired equipment is shortened, and the equipment disassembly efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view structural schematic diagram of the application; Figure 2 It is a front view structural schematic diagram of the application; Figure 3 It is a right view structural schematic diagram of the application; Figure 4 It is a box body structural schematic diagram of the application; Figure 5 It is a supporting assembly structural schematic diagram of the application; Figure 6 This is an exploded view of the guide rail assembly of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the guide rail assembly of the present invention; Figure 8 This is a schematic diagram of the second fixing bolt structure of the present invention; Figure 9 This is a schematic diagram of the slider assembly structure of the present invention.

[0024] In the diagram: 1. Housing; 2. Connecting block; 3. Support assembly; 301. Support plate; 302. Toothed groove; 303. Vent hole; 304. First fixing bolt; 4. Guide rail assembly; 401. Guide rail body; 402. First through hole; 403. Second through hole; 404. Adjusting bar; 405. First spring; 406. Roller; 407. Fixing rod; 408. Second spring; 409. Third limiting hole; 410. Second fixing bolt; 5. Slider assembly; 501. Slider body; 502. Third through hole; 503. Fourth through hole; 504. Spring pin; 6. Air outlet; 7. Cooling fan; 8. Air inlet. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0026] Example 1: As Figures 1-5 The present invention provides the following technical solution: a guided motor processing and conveying device, which discloses a connecting block 2 and a support assembly 3, including a support plate 301 inserted and installed on the top surface of the connecting block 2, as shown. Figure 5 As shown, toothed grooves 302 are provided on both sides of the inner wall of the support plate 301, and as... Figure 4 As shown, the inner wall of the connecting block 2 is provided with toothed protrusions, and the support plate 301 forms an insertion structure with the connecting block 2 through the toothed groove 302 and the toothed protrusions, as shown. Figure 5 As shown, the top of the support plate 301 is provided with a first fixing bolt 304, and the inner wall of the support plate 301 is provided with a through first limiting hole, and the top surface of the connecting block 2 is provided with a second limiting hole.

[0027] In use, the support plate 301 is engaged with the toothed protrusions on the inner wall of the connecting block 2 through the toothed grooves 302 on both sides of the inner wall, and the support plate 301 and the connecting block 2 are horizontally inserted and installed. After installation, the first limiting hole on the inner wall of the support plate 301 is consistent with the first limiting hole on the top surface of the connecting block 2. By rotating the first fixing bolt 304, the first fixing bolt 304 is inserted into the first limiting hole and the second limiting hole to fix the support plate 301 and the connecting block 2. Conversely, the fixation of the support plate 301 and the connecting block 2 can be released to maintain or replace the support plate 301.

[0028] Furthermore, the top surface of the support plate 301 is provided with ventilation holes 303, and the ventilation holes 303 are evenly distributed on the top surface of the support plate 301. The support assembly 3 divides the interior of the enclosure 1 into three areas for the installation of different equipment of the relay protection device. The ventilation holes 303 can realize the vertical connection of the air inside the enclosure 1, promote gas exchange between layers, and prevent heat from accumulating locally.

[0029] Example 2: Figures 1-4 The technical solution shown, based on Embodiment 1, also discloses an air outlet 6 and an air inlet 8, such as... Figure 2 As shown, the air outlet 6 is located on one side of the housing 1. The air outlet 6 is equipped with a cooling fan 7. A motor is located on one side of the cooling fan 7. The other side surface of the housing 1 is equipped with an air inlet 8, and a dustproof net is provided at the air inlet 8.

[0030] During use, the air outlet 6, cooling fan 7, and air inlet 8 correspond to different layers inside the housing 1. External cold air can be introduced through multiple air inlets 8 on the right side, while the cooling fan 7 through the air outlet 6 on the left side forces the hot air inside the housing 1 to be extracted, forming a directional airflow path. This prevents electronic components from drifting due to overheating, ensures the accuracy of protection logic judgment, prevents high temperature from accelerating the aging of insulation materials, and improves the service life of the equipment.

[0031] Example 3: Figures 1-4 and Figures 6-9 The technical solution shown, based on Embodiment 2, also discloses a guide rail assembly 4 and a slider assembly 5. The guide rail assembly 4 includes a guide rail body 401 fixedly connected to the top surface of the support plate 301, such as... Figure 6 As shown, a first through hole 402 is provided on the top surface of the guide rail body 401. The first through holes 402 are evenly distributed on the top surface of the guide rail body 401, such as... Figure 6 As shown, a second through hole 403 is provided on one side surface of the guide rail body 401. The second through holes 403 are evenly distributed on one side surface of the guide rail body 401, such as... Figure 6As shown, the inner wall of the guide rail body 401 is slidingly connected with an adjusting strip 404, one end of the adjusting strip 404 is provided with a plug rod, the outer part of the plug rod is provided with a first spring 405, and the adjusting strip 404 and the guide rail body 401 constitute an elastic mechanism through the plug rod and the first spring 405, the top surface and one side surface of the adjusting strip 404 are attached with a plurality of rollers 406, the rollers 406 are equidistantly distributed on the top surface and one side surface of the adjusting strip 404, a support is rotatably connected to the outer wall of the roller 406, the top of the support is provided with a fixing rod 407, the outer part of the fixing rod 407 is provided with a second spring 408, and the roller 406 and the guide rail body 401 constitute an elastic mechanism through the support, the fixing rod 407 and the second spring 408, wherein the slider assembly 5 comprises a slider body 501 slidingly connected to the outer wall of the guide rail body 401, a third through hole 502 is formed in the top surface of the slider body 501, a fourth through hole 503 is formed in one side surface of the slider body 501, and a spring catch 504 is mounted on one side surface of the slider body 501, and as Figure 8 As shown, the outer wall of the guide rail body 401 is provided with pin holes on one side, and the pin holes are equidistantly distributed on one side surface of the guide rail body 401, and the pin holes correspond to the first through hole 402, the second through hole 403, the third through hole 502 and the fourth through hole 503 one by one.

[0032] In use, the bottom of the device is fixedly connected with the slider body 501, the slider body 501 is horizontally inserted and installed on the outer wall of the guide rail body 401, the outer wall of the guide rail body 401 is provided with pin holes on one side, the device is slid on the outer wall of the guide rail body 401 through the slider body 501, the position of the device is adjusted, the slider assembly 5 is positioned through the cooperation of the spring catch 504 and the pin hole, at this time, the third through hole 502 is aligned with the first through hole 402, and the fourth through hole 503 is aligned with the second through hole 403, as Figure 7As shown, the top surface and one side surface of the adjusting strip 404 of the guide rail assembly 4 are provided with V-shaped grooves, which are equidistantly distributed on the top surface and one side surface of the adjusting strip 404. When the slider assembly 5 is installed, the first spring 405 is in a normal state, the second spring 408 is in a normal state, the roller 406 on the top surface of the adjusting strip 404 is located in the V-shaped groove, the fixed rod 407 is retracted, the top end of the fixed rod 407 is aligned with the top surface of the guide rail body 401, the adjusting strip 404 is pressed towards the inside of the guide rail body 401 after the slider assembly 5 is installed and positioned, the adjusting strip 404 slides in the inner wall of the guide rail body 401, the roller 406 moves upwards along the slope of one side of the V-shaped groove, the bracket and the fixed rod 407 move upwards, the fixed rod 407 extends from the first through hole 402 and the second through hole 403 of the guide rail body 401, and is inserted into the third through hole 502 and the fourth through hole 503 in the inner wall of the slider body 501, the roller 406 is supported by the protruding part of the adjusting strip 404, the slider assembly 5 can be quickly fixed, the first spring 405 is also in a compressed state, the third limiting hole 409 on one side of the adjusting strip 404 is aligned with the fourth limiting hole on one side surface of the guide rail body 401, the second fixed bolt 410 is inserted into the fourth limiting hole and the third limiting hole 409 by rotating, the adjusting strip 404 is fixed, when the internal components of the relay protection device reach the retirement standard after long-term work, the second fixed bolt 410 is pulled out of the fourth limiting hole and the third limiting hole 409, the fixing of the adjusting strip 404 by the second fixed bolt 410 is released, at this time, the first spring 405 returns to the normal state, the adjusting strip 404 slides in the inner wall of the guide rail body 401, the roller 406 moves downwards along the slope of one side of the V-shaped groove from the protruding part of the adjusting strip 404, and the roller 406 stays in the V-shaped groove, in the process, the second spring 408 also gradually returns to the normal state, the bracket and the fixed rod 407 move downwards, the fixed rod 407 is retracted into the guide rail body 401, and the top end of the fixed rod 407 is aligned with the top surface of the guide rail body 401, two slider assemblies 5 are symmetrically arranged at the bottom of the equipment, and the slider assemblies 5 are mirror-symmetric about the central axis of the equipment, the spring pins 504 are pulled out of the pin holes of the guide rail body 401, and finally the equipment is pulled out horizontally.

[0033] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0034] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A modular relay protection device that can be disassembled and recycled, comprising a housing (1), wherein connecting blocks (2) are provided on both sides of the inner wall of the housing (1). Its features are: The connecting block (2) is L-shaped, and a support component (3) is inserted and installed on the top surface of the connecting block (2). A guide rail component (4) is fixedly connected to the top surface of the support component (3). A slider component (5) is slidably connected to the outer wall of the guide rail component (4). The top of the slider component (5) is fixedly connected to the device. The slider component (5) is positioned and installed with the guide rail component (4) through a positioning component. The guide rail component (4) is fixed with the slider component (5) through a fixing component. The box (1) has an air outlet (6) on one side surface, a cooling fan (7) inside the air outlet (6), a motor on one side of the cooling fan (7), and an air inlet (8) on the other side surface of the box (1), with a dustproof net at the air inlet (8).

2. The modular relay protection device that is detachable and recyclable according to claim 1, characterized in that: The support assembly (3) includes a support plate (301) that is plugged into the top surface of the connecting block (2). The inner walls of the support plate (301) are provided with toothed grooves (302) on both sides, and the inner walls of the connecting block (2) are provided with toothed protrusions. The support plate (301) and the connecting block (2) form a plug-in structure through the toothed grooves (302) and toothed protrusions.

3. The modular relay protection device that is detachable and recyclable according to claim 2, characterized in that: The top surface of the support plate (301) is provided with ventilation holes (303), and the ventilation holes (303) are evenly distributed on the top surface of the support plate (301).

4. A modular relay protection device that is detachable and recyclable according to claim 2, characterized in that: The top of the support plate (301) is provided with a first fixing bolt (304), and the inner wall of the support plate (301) is provided with a through first limiting hole, and the top surface of the connecting block (2) is provided with a second limiting hole.

5. A modular relay protection device that is detachable and recyclable according to claim 1, characterized in that: The guide rail assembly (4) includes a guide rail body (401) fixedly connected to the top surface of the support plate (301). The top surface of the guide rail body (401) is provided with a first through hole (402), which is evenly distributed on the top surface of the guide rail body (401). A second through hole (403) is provided on one side surface of the guide rail body (401), which is evenly distributed on one side surface of the guide rail body (401).

6. A modular relay protection device that is detachable and recyclable according to claim 5, characterized in that: The fixing component includes an adjusting strip (404) slidably mounted on the inner wall of the guide rail body (401). One end of the adjusting strip (404) is provided with a plug rod, and the outside of the plug rod is provided with a first spring (405). The adjusting strip (404) and the guide rail body (401) form an elastic mechanism through the plug rod and the first spring (405). The top surface and one side surface of the adjusting strip (404) are both fitted with rollers (406). The outer wall of the rollers (406) is rotatably connected to a bracket, and the top of the bracket is provided with a fixing rod (407). The outside of the fixing rod (407) is provided with a second spring (408). The rollers (406) and the guide rail body (401) form an elastic mechanism through the bracket, the fixing rod (407) and the second spring (408).

7. A modular relay protection device that is detachable and recyclable according to claim 6, characterized in that: The adjusting bar (404) has a third limiting hole (409) on one side surface, and the guide rail body (401) has a fourth limiting hole on one side surface, and a second fixing bolt (410) is provided on one side of the fourth limiting hole.

8. A modular relay protection device that is detachable and recyclable according to claim 1, characterized in that: The slider assembly (5) includes a slider body (501) that is slidably connected to the outer wall of the guide rail body (401). A third through hole (502) is provided on the top surface of the slider body (501), and a fourth through hole (503) is provided on one side surface of the slider body (501).

9. A modular relay protection device that is detachable and recyclable according to claim 1, characterized in that: The positioning component includes a spring pin (504) installed on one side surface of the slider body (501), and a pin hole is provided on one side of the outer wall of the guide rail body (401). The pin holes are evenly distributed on one side surface of the guide rail body (401), and the pin holes correspond one-to-one with the first through hole (402), the second through hole (403), the third through hole (502), and the fourth through hole (503).

10. A modular relay protection device that is removable and recyclable according to claim 1, characterized in that: The top surface and one side surface of the adjustment bar (404) are provided with V-shaped grooves, and the V-shaped grooves are distributed at equal distances on the top surface and one side surface of the adjustment bar (404).

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