A low-frequency detection device for grounding points of DC systems

Abstract

The present invention discloses a low-frequency detection device for a grounding point of a DC system, comprising a storage box, a positioning column fixedly mounted on one side of the storage box, a cover plate adjustably mounted on the positioning column, a first clamping block fixedly mounted on the cover plate, a placement slot provided on the storage box, a first screw hole provided on the placement slot, first grooves provided on both sides of the placement slot, a second clamping block fixedly mounted on the first groove, a first adjustment block adjustably mounted on one side of the storage box, and a first storage slot provided on one side of the storage box. The present invention has the advantages that the device can be quickly turned on and off through the mutual cooperation of the corresponding mechanisms of the device when in use, making the device convenient to use, the device can carry more tools through its own device, and the tools can be stored in order after use to facilitate the next use of the tools, and the device has a corresponding shock-absorbing effect, thereby improving the safety of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power equipment, and in particular relates to a low-frequency detection device for a grounding point of a DC system. Background Art

[0002] A DC grounding detector is a device used to detect DC grounding faults. Unlike traditional detection methods, this device can perform fault detection without power outages, making it convenient and efficient. It is usually mobile. During the operation and maintenance of power systems, the search and treatment of DC system grounding faults often makes it difficult for maintenance personnel to find and handle them, sometimes taking a day or even several days of effort. DC grounding mostly occurs during thunderstorm seasons. On the one hand, primary equipment may fail and need to trip, and power outages are generally not allowed. On the other hand, there is a concern that another DC grounding may occur, resulting in two or more grounding points, causing protection malfunctions or failure to operate. It is required to quickly find and eliminate the grounding fault point without power outage. At this time, it is necessary to use a DC system grounding point low-frequency detector for operation. Publication number: CN2058995U, suitable for 220V or 110V DC system grounding point detection in power plants and substations. The detector consists of a low-frequency signal generator and a low-frequency signal detector. It can quickly detect the location of the grounding point with a transition resistance of less than 30KΩ in the DC system. It has the advantages of small size, low cost, easy debugging, and high accuracy. Compared with the pulling method, the search efficiency is improved by dozens of times, and it can eliminate the false operation of relay protection caused by DC circuit pulling, thereby improving the reliability of power supply.

[0003] The problems with the above technology are: the commonly used low-frequency detector is not convenient for adjusting the corresponding mechanism of the equipment to quickly open and close the equipment when in use or after use, which consumes a long time. It is inconvenient to carry other tools to work when the equipment is in use, and other detection tools need to be carried additionally, which is more troublesome. The equipment does not have the corresponding shock absorption effect. Therefore, we propose a low-frequency detection device for the grounding point of the DC system. Summary of the Invention

[0004] In response to the problems existing in the prior art, the present invention provides a low-frequency detection device for the grounding point of a DC system. The device can be quickly switched on and off through the cooperation of the corresponding mechanisms of the device when in use, which makes the device easy to use. The device can carry more tools through its own device, and the tools can be stored in order after use to facilitate the next use of the tools. The device has the advantage of corresponding shock-absorbing effect, thereby improving the safety of the device. It solves the problem that commonly used low-frequency detectors are not convenient to adjust the corresponding mechanisms of the device to quickly open and close the device when in use or after use, which consumes a long time, and it is inconvenient to carry other tools to work when the device is in use. Other detection tools need to be carried additionally, which is more troublesome, and the device does not have the corresponding shock-absorbing effect.

[0005] The present invention is implemented as follows: a low-frequency detection device for a grounding point of a DC system includes a storage box, a positioning column is fixedly installed on one side of the storage box, a cover plate is adjustably installed on the positioning column, a first clamping block is fixedly installed on the cover plate, a placement slot is provided on the storage box, a first screw hole is provided on the placement slot, first grooves are provided on both sides of the placement slot, a second clamping block is fixedly installed on the first groove, a first adjustment block is adjustably installed on one side of the storage box, a first receiving slot is provided on one side of the storage box, a shock-absorbing assembly is detachably installed in the placement slot, a low-frequency detector body is provided on the shock-absorbing assembly, a storage assembly is detachably installed in the first receiving slot, and an adjustment and fixing assembly is provided on the storage box.

[0006] As a preferred embodiment of the present invention, an adjustment column is rotatably installed on the positioning column, a first adjustment plate is fixedly installed on the adjustment column, first screws are provided at both ends of the adjustment column, a cover plate is commonly connected to the first adjustment plate, a first sealing ring is fixedly installed on the cover plate, a second sealing ring is fixedly installed on the storage box, and the cover plate can perfectly cover the storage box.

[0007] As a preferred embodiment of the present invention, the shock absorbing assembly includes a first fixing plate and a second fixing plate, the first fixing plate is threadedly mounted with a second screw, several groups of shock absorbers are arranged between the first fixing plate and the second fixing plate, and the second screw can be threadedly mounted in the first screw hole.

[0008] As a preferred embodiment of the present invention, the storage assembly includes a storage box, and first sliders are fixedly installed on both sides of the upper surface of the storage box, and the first sliders can slide on the first sliding grooves.

[0009] As a preferred embodiment of the present invention, a second storage slot and a third storage slot are provided on the storage box, a plurality of groups of first connecting blocks are fixedly installed in the second storage slot, and elastic ropes are fixedly installed on both sides of the first connecting blocks.

[0010] As a preferred embodiment of the present invention, a first square groove is provided on both sides of the third storage slot, a first clamping block is fixedly installed in the first square groove, a second clamping block is detachably installed on the first clamping block, a protective plate is commonly connected between the second clamping blocks, a displacement plate is fixedly installed on the upper surface of the protective plate, and a pull plate is fixedly installed at one end of the storage box.

[0011] As a preferred embodiment of the present invention, mounting blocks are fixedly installed on both sides of the pull plate, a clamping block is fixedly installed on the mounting block, a third screw is threadedly installed on the storage box, the first adjustment block is rotatably installed on the third screw, a partition block is fixedly installed on the first adjustment block, a blocking groove is provided on the partition block, and the partition block can be adjusted so that the blocking groove and the clamping block can be clamped together.

[0012] As a preferred embodiment of the present invention, the adjustment and fixing assembly includes two groups of first fixed blocks, the first fixed blocks are fixedly installed on the storage box, a second adjustment plate is adjustably arranged between the first fixed blocks, a first card slot is provided on the second adjustment plate, the first card block can be clamped in the first card slot, the second adjustment plate is provided with a first adjustment slot and a second adjustment slot, two groups of stabilizing slots are provided on the upper and lower surfaces of the second adjustment slot, a second fixed block is fixedly installed in the second adjustment slot, springs are fixedly installed on both sides of the second fixed block, the other end of the spring is fixedly connected to a moving block, the moving block is slidably arranged in the second adjustment slot, a guide column is provided in the spring, and one end of the guide column is fixedly connected to the second fixed block.

[0013] As a preferred embodiment of the present invention, stabilizing blocks are fixedly installed on the upper and lower surfaces of the movable block, and the stabilizing blocks can slide in the stabilizing groove at the same time. A third clamping block is fixedly installed on the other end of the movable block, and a second square groove is provided on the first fixed block. Several groups of fourth clamping blocks are provided in the second square groove, and the third clamping block can be fixedly clamped between the fourth clamping blocks.

[0014] As a preferred embodiment of the present invention, a second connecting block is fixedly installed on one side of the moving block, a connecting plate is commonly installed on the second connecting block, a second adjusting block is fixedly installed on the inner side of the connecting plate, the second adjusting block can slide in the first adjusting groove, a third connecting block is fixedly installed on the second adjusting block, pulling blocks are fixedly installed on the upper and lower surfaces of the third connecting block, positioning blocks are fixedly installed on both sides of the second adjusting plate, a shift column is rotatably installed on the positioning block, and a handle is commonly fixedly installed on the shift column.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention adopts the design of the storage box, the positioning column, the cover plate, the first clamping block, the placement slot, the first screw hole, the first groove, the second clamping block, the first adjustment block, the first storage slot, the shock-absorbing assembly, the low-frequency detector body, the storage assembly and the adjustment and fixing assembly, so that when the lower surface of the device is hit, the shock-absorbing assembly and the device mechanism can cooperate with each other to reduce the impact force on the low-frequency detector body installed in the storage box, thereby achieving the effect of improving the safety of the low-frequency detector body. The low-frequency detector body can be disassembled or installed on the storage box according to the needs of use. When the device is in use, the storage assembly can be adjusted to achieve the device being retractable. The effect of various tools that need to be used, the tools can be sorted and classified when stored in the storage component, so as to facilitate the next use of various necessary tools. The storage component can cooperate with some mechanisms of the equipment so that it can be quickly installed or disassembled, which is convenient for the use of the equipment and convenient for replacement when the equipment mechanism is damaged. When the equipment is in use, the cover can achieve the effect of quick opening and closing by cooperating with the adjustment and fixing component, and after the cover is closed, the adjustment and fixing component part mechanism can be adjusted to position the cover according to the needs of use to avoid the cover from loosening or automatically opening when closed, making the equipment more convenient and efficient when in use, and reducing time consumption.

[0017] 2. The present invention adopts the design of the storage box, the positioning column, the adjustment column, the first adjustment plate, the cover plate, the first screw, the first sealing ring and the second sealing ring, so that the cover plate can be adjusted to a specific angle on the storage box through the cooperation of the storage box, the positioning column, the adjustment column and the first screw, thereby achieving the effect of facilitating the opening and closing of the cover plate. The first screw can be adjusted to replace the cover plate. When the cover plate is closed, the first sealing ring and the second sealing ring can cooperate with each other, so that the device has good sealing performance, avoiding dust and water mist from entering the storage box through the gap when the device is not in use, thereby achieving the effect of protecting the equipment.

[0018] 3. The present invention uses the design of the first screw hole, the shock absorbing assembly, the first fixing plate, the second fixing plate, the second screw and the shock absorber. When the device accidentally falls and the lower surface of the storage box is hit, the impact force on the lower surface of the storage box can be transmitted to the first fixing plate through the storage box. When the impact force is transmitted to the first fixing plate, it can be weakened by the shock absorber, thereby achieving the effect of reducing the impact force on the low-frequency detector body and protecting the low-frequency detector body. The shock absorbing assembly can be quickly installed in the placement slot according to specific needs of use, thereby achieving the effect of protecting the low-frequency detector body and facilitating maintenance and replacement of the shock absorbing assembly.

[0019] 4. The present invention adopts the design of the storage assembly, the storage box, the first slider and the first slide groove, so that when the device is in use, the storage box can be quickly installed in the first storage groove through the mutual cooperation of the first slider and the first slide groove, thereby achieving the effect of facilitating the storage and retrieval of tools and facilitating the use of the device.

[0020] 5. The present invention adopts the design of the storage box, the second storage slot, the third storage slot, the first connecting block and the elastic rope, so that tools or connecting cables can be placed in the second storage slot when they are stored, and the elastic rope can be used to tie the tools or connecting cables when they are placed in the second storage slot, thereby achieving the effect of orderly and quick storage of tools, which is convenient for the next use of the tools.

[0021] 6. The present invention adopts the design of the third receiving groove, the first square groove, the first clamping block, the second clamping block, the protective plate, the displacement plate and the pulling plate, so that the tool or the connecting line can be placed in the third receiving groove. When the tool or the connecting line is placed in the third receiving groove, the staff can hold the displacement plate and cooperate with the first square groove, the first clamping block and the second clamping block to quickly install the protective plate on the third receiving groove, thereby achieving the effect of quickly closing the third receiving groove, which is conducive to the orderly storage of tools, avoids the frequent shaking of tools in the equipment when the equipment is moved, and avoids the situation that the tool is stuck in the first receiving groove when the storage box is pulled, thereby making it inconvenient to open the storage box.

[0022] 7. The present invention adopts the design of the storage box, the first adjusting block, the partition block, the blocking groove, the pull plate, the mounting block, the clamping block and the third screw, so that when the storage box has finished storing the tools, it can be pushed into the first storage groove. When the storage box is pushed into the first storage groove, the first adjusting block can be rotated. When the first adjusting block is rotated, the position of the partition block is also adjusted synchronously, so that the partition block can block the storage box. The clamping block and the blocking groove can be engaged with each other by adjusting the partition block, so as to achieve the effect of positioning the storage box, thereby preventing the storage box pushed into the first storage groove from accidentally sliding out when the equipment is moved, thereby causing the tool to fall.

[0023] 8. The present invention adopts the design of the storage box, the first card block, the adjustment and fixing assembly, the first fixing block, the second adjustment plate, the first card slot, the first adjustment slot, the second adjustment slot, the stabilizing slot, the second fixing block, the guide column, the spring and the moving block, so that the first card block can be clamped in the first card slot when the cover is closed, thereby achieving the effect of positioning the cover, and the moving block can slide in the second adjustment slot. When the moving block slides, one end of the spring is synchronously squeezed toward the other end, and due to the design of the guide column, the spring will only move in a specific direction when squeezed, avoiding the overall bending deformation of the spring when squeezed, and when the squeezing force on the spring disappears, the spring can adjust the moving block to a suitable position through its own elastic force, thereby achieving the effect of positioning the moving block, making the device more efficient and convenient when in use.

[0024] 9. The present invention adopts the design of the stabilizing groove, the movable block, the stabilizing block, the third clamping block, the second square groove and the fourth clamping block, so that when the movable block is adjusted in position, the stabilizing block can synchronously follow the stabilizing block to slide in the stabilizing groove, thereby achieving the effect of improving the stability of the stabilizing block and avoiding the movable block from shaking and accidentally falling when adjusting its position.

[0025] 10. The present invention adopts the design of the second adjusting plate, the movable block, the second connecting block, the connecting plate, the second adjusting block, the third connecting block, the pulling block, the positioning block, the shifting column and the handle, so that when the cover is closed, the staff can pull the pulling block, and when the pulling block is pulled, the third connecting block is synchronously driven to adjust the position, and when the third connecting block is adjusted, the second adjusting block is synchronously driven to adjust the position in the first adjusting groove, and when the second adjusting block is adjusted in the first adjusting groove, the second adjusting block synchronously drives the connecting plate and the second connecting block to adjust the positions synchronously, thereby achieving the effect of driving the movable block to adjust the position in the second adjusting groove, and when the movable block is adjusted, the third clamping block is synchronously driven to adjust the position, so that the third clamping block fixed between the fourth clamping blocks is fixed. The three clamping blocks are used to adjust the position, thereby achieving the effect that the second adjusting plate can be adjusted to the position on the second square groove according to the needs of use, which is convenient for the opening and closing of the cover plate, and when the second adjusting plate is adjusted to the appropriate position, the user can release the pulling block. When the staff stops pulling the pulling block, the spring can automatically reset the moving block, so that the clamping block is re-clamped and fixed between the fourth clamping blocks, thereby achieving the effect that the second adjusting plate can be quickly adjusted to the position according to the needs of use, and the second adjusting plate can be fixed when it is adjusted to the appropriate position, thereby improving the working efficiency of the equipment, reducing the time consumption of switching the equipment on and off when in use, and facilitating the use of the equipment. After the equipment is used, the staff can quickly move the equipment through the handle, thereby achieving the effect of facilitating the overall movement of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the external structure of the device provided by an embodiment of the present invention;

[0027] Figure 2 This is a rear perspective schematic diagram of the external structure of the device provided by an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of the device provided by an embodiment of the present invention;

[0029] Figure 4 This is a three-dimensional schematic diagram of a device storage box provided by an embodiment of the present invention;

[0030] Figure 5 This is a three-dimensional schematic diagram of the overall structure of the shock absorbing assembly of the device provided in an embodiment of the present invention;

[0031] Figure 6 It is a three-dimensional schematic diagram of the structure of the device adjustment and fixing assembly provided by an embodiment of the present invention;

[0032] Figure 7 It is a three-dimensional schematic diagram of the structure of the device adjustment and fixing assembly provided by an embodiment of the present invention;

[0033] Figure 8 is a three-dimensional schematic diagram of a second adjustment plate of a device provided in an embodiment of the present invention;

[0034] Figure 9 It is a three-dimensional schematic diagram of the structure of the device adjustment and fixing assembly provided by an embodiment of the present invention;

[0035] Figure 10 It is a three-dimensional schematic diagram of the structure of the device adjustment and fixing assembly provided by an embodiment of the present invention;

[0036] Figure 11 It is a top perspective schematic diagram of a partial structure of a device storage assembly provided by an embodiment of the present invention;

[0037] Figure 12 This is a bottom-up perspective diagram of a device protection plate provided by an embodiment of the present invention;

[0038] Figure 13 This is a schematic diagram of a partially exploded perspective view of a device provided by an embodiment of the present invention;

[0039] Figure 14 It is a schematic diagram of a disassembled three-dimensional representation of part of the mechanism of the device provided by an embodiment of the present invention.

[0040] Figure: 1, storage box; 2, positioning column; 3, adjustment column; 4, first adjustment plate; 5, cover plate; 6, first clamping block; 7, placement slot; 8, first screw hole; 9, first groove; 10, second clamping block; 11, first adjustment block; 12, blocking block; 13, blocking slot; 14, first storage slot; 15, shock-absorbing assembly; 1501, first fixing plate; 1502, second fixing plate; 1503, second screw; 1504 , shock absorber; 16, low-frequency detector body; 17, storage assembly; 1701, storage box; 1702, first slider; 1703, second storage slot; 1704, third storage slot; 1705, first connecting block; 1706, elastic rope; 1707, first square groove; 1708, first clamping block; 1709, second clamping block; 1710, protective plate; 1711, displacement plate; 1712, pull plate; 1713, mounting block; 1714, clamping block; 18, adjustment and fixing assembly; 1801, first fixing block; 1802, second adjustment plate; 1803, first clamping slot; 1804, first adjustment slot; 1805, second adjustment slot; 1806, stabilizing slot; 1807, second fixing block; 1808, guide post; 1809, spring; 1810, moving block; 1811, stabilizing block; 1812, second connecting block Connecting block; 1813, connecting plate; 1814, third clamping block; 1815, second adjusting block; 1816, third connecting block; 1817, pulling block; 1818, second square groove; 1819, fourth clamping block; 1820, positioning block; 1821, displacement column; 1822, handle; 19, first screw; 20, third screw; 21, first slide groove; 22, first sealing ring; 23, second sealing ring. DETAILED DESCRIPTION

[0041] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0042] The structure of the present invention is described in detail below with reference to the accompanying drawings.

[0043] like Figures 1 to 14As shown, an embodiment of the present invention provides a low-frequency detection device for a grounding point of a DC system, including a storage box 1, a positioning column 2 is fixedly installed on one side of the storage box 1, a cover plate 5 is adjustably installed on the positioning column 2, a first clamping block 6 is fixedly installed on the cover plate 5, a placement slot 7 is provided on the storage box 1, a first screw hole 8 is provided on the placement slot 7, first grooves 9 are provided on both sides of the placement slot 7, a second clamping block 10 is fixedly installed on the first groove 9, a first adjustment block 11 is adjustably installed on one side of the storage box 1, a first storage slot 14 is provided on one side of the storage box 1, a shock-absorbing assembly 15 is detachably installed in the placement slot 7, a low-frequency detector body 16 is provided on the shock-absorbing assembly 15, a storage assembly 17 is detachably installed in the first storage slot 14, and an adjustment and fixing assembly 18 is provided on the storage box 1.

[0044] The above scheme is adopted: through the design of the storage box 1, the positioning column 2, the cover plate 5, the first card block 6, the placement slot 7, the first screw hole 8, the first groove 9, the second card block 10, the first adjustment block 11, the first storage slot 14, the shock absorbing component 15, the low-frequency detector body 16, the storage component 17 and the adjustment and fixing component 18, when the lower surface of the device is hit, the impact force received by the low-frequency detector body 16 installed in the storage box 1 can be reduced by the mutual cooperation of the shock absorbing component 15 and the device mechanism, thereby achieving the effect of improving the safety of the low-frequency detector body 16. The low-frequency detector body 16 can be disassembled or installed on the storage box 1 according to the needs of use. The device can be adjusted by the storage box 1 when in use. The storage component 17 can achieve the effect that the device can store various tools that need to be used. When the tools are stored in the storage component 17, they can be sorted and classified, so as to facilitate the next use of various necessary tools. The storage component 17 can cooperate with some mechanisms of the device so that it can be quickly installed or disassembled, which is convenient for the use of the device and for replacement when the device mechanism is damaged. When the device is in use, the cover 5 can achieve the effect of quick opening and closing by cooperating with the adjustment and fixing component 18, and after the cover 5 is closed, the adjustment and fixing component 18 can be adjusted to position the cover 5 according to the needs of use to avoid the cover 5 from loosening or automatically opening when closed, making the device more convenient and efficient when in use and reducing time consumption.

[0045] refer to Figure 2-3 An adjusting column 3 is rotatably mounted on the positioning column 2, a first adjusting plate 4 is fixedly mounted on the adjusting column 3, first screws 19 are provided at both ends of the adjusting column 3, a cover plate 5 is connected to the first adjusting plate 4, a first sealing ring 22 is fixedly mounted on the cover plate 5, a second sealing ring 23 is fixedly mounted on the storage box 1, and the cover plate 5 can perfectly cover the storage box 1.

[0046] The above-mentioned scheme is adopted: through the design of the storage box 1, the positioning column 2, the adjusting column 3, the first adjusting plate 4, the cover plate 5, the first screw 19, the first sealing ring 22 and the second sealing ring 23, the cover plate 5 can be adjusted to a specific angle on the storage box 1 through the cooperation of the storage box 1, the positioning column 2, the adjusting column 3 and the first screw 19, thereby achieving the effect of facilitating the opening and closing of the cover plate 5, and the first screw 19 can be adjusted to replace the cover plate 5. When the cover plate 5 is closed, the first sealing ring 22 and the second sealing ring 23 can cooperate with each other, so that the device has good sealing, avoiding dust and water mist from entering the storage box 1 through the gap when the device is not in use, thereby achieving the effect of protecting the equipment.

[0047] refer to Figure 5 The shock absorbing assembly 15 includes a first fixing plate 1501 and a second fixing plate 1502. The first fixing plate 1501 is threadedly mounted with a second screw 1503. Several groups of shock absorbers 1504 are arranged between the first fixing plate 1501 and the second fixing plate 1502. The second screw 1503 can be threadedly mounted in the first screw hole 8.

[0048] The above-mentioned scheme is adopted: through the design of the first screw hole 8, the shock-absorbing assembly 15, the first fixing plate 1501, the second fixing plate 1502, the second screw 1503 and the shock absorber 1504, when the device accidentally falls and the lower surface of the storage box 1 is hit, the impact force on the lower surface of the storage box 1 can be transmitted to the first fixing plate 1501 through the storage box 1. When the impact force is transmitted to the first fixing plate 1501, it can be weakened by the shock absorber 1504, thereby achieving the effect of reducing the impact force on the low-frequency detector body 16 and protecting the low-frequency detector body 16. The shock-absorbing assembly 15 can be quickly installed in the placement slot 7 according to specific needs of use, thereby achieving the effect of protecting the low-frequency detector body 16 and facilitating maintenance and replacement of the shock-absorbing assembly 15.

[0049] refer to Figure 11 The storage assembly 17 includes a storage box 1701 , and first sliders 1702 are fixedly mounted on both sides of the upper surface of the storage box 1701 . The first sliders 1702 can slide on the first slide groove 21 .

[0050] The above-mentioned solution is adopted: through the design of the storage component 17, the storage box 1701, the first slider 1702 and the first slide groove 21, so that when the device is in use, the storage box 1701 can be quickly installed in the first storage groove 14 through the mutual cooperation between the first slider 1702 and the first slide groove 21, thereby achieving the effect of facilitating the storage and retrieval of tools and facilitating the use of the device.

[0051] refer to Figure 11The storage box 1701 is provided with a second storage slot 1703 and a third storage slot 1704 . Several groups of first connecting blocks 1705 are fixedly installed in the second storage slot 1703 , and elastic ropes 1706 are fixedly installed on both sides of the first connecting block 1705 .

[0052] The above solution is adopted: through the design of the storage box 1701, the second storage slot 1703, the third storage slot 1704, the first connecting block 1705 and the elastic rope 1706, tools or connecting cables can be placed in the second storage slot 1703 when they are stored, and the elastic rope 1706 can be used to bundle the tools or connecting cables when the tools or connecting cables are placed in the second storage slot 1703, thereby achieving the effect of orderly and quick storage of tools, which is convenient for the next use of the tools.

[0053] refer to Figure 11-12 A first square groove 1707 is provided on both sides of the third storage slot 1704, a first clamping block 1708 is fixedly installed in the first square groove 1707, a second clamping block 1709 is detachably installed on the first clamping block 1708, a protective plate 1710 is commonly connected between the second clamping blocks 1709, a displacement plate 1711 is fixedly installed on the upper surface of the protective plate 1710, and a pull plate 1712 is fixedly installed at one end of the storage box 1701.

[0054] The above-mentioned scheme is adopted: through the design of the third storage slot 1704, the first square groove 1707, the first clamping block 1708, the second clamping block 1709, the protective plate 1710, the displacement plate 1711 and the pulling plate 1712, the tool or the connecting line can be placed in the third storage slot 1704, and when the tool or the connecting line is placed in the third storage slot 1704, the staff can hold the displacement plate 1711 through the first square groove 1707, the first clamping block 1708 and the second clamping block 1709 to make the protective plate 1710 quickly installed on the third storage slot 1704, thereby achieving the effect of quickly closing the third storage slot 1704, which is conducive to the orderly storage of tools, avoids the frequent shaking of tools in the equipment when the equipment is moved, and avoids the situation where the tool is stuck in the first storage slot 14 when the storage box 1701 is pulled, thereby causing the storage box 1701 to be inconvenient to open.

[0055] refer to Figure 13 , mounting blocks 1713 are fixedly installed on both sides of the pull plate 1712, and a clamping block 1714 is fixedly installed on the mounting block 1713. A third screw 20 is threadedly installed on the storage box 1, and the first adjusting block 11 is rotatably installed on the third screw 20. A blocking block 12 is fixedly installed on the first adjusting block 11, and a blocking groove 13 is provided on the blocking block 12. The blocking block 12 can be adjusted so that the blocking groove 13 and the clamping block 1714 can be clamped.

[0056] The above-mentioned scheme is adopted: through the design of the storage box 1, the first adjusting block 11, the partition block 12, the blocking groove 13, the pull plate 1712, the mounting block 1713, the clamping block 1714 and the third screw 20, when the storage box 1701 finishes storing the tools, it can be pushed into the first storage groove 14, and when the storage box 1701 is pushed into the first storage groove 14, the first adjusting block 11 can be rotated, and when the first adjusting block 11 is rotated, the position of the partition block 12 is also adjusted synchronously, so that the partition block 12 can block the storage box 1701, and the clamping block 1714 and the blocking groove 13 can be clamped with each other by adjusting the partition block 12, so as to achieve the effect of positioning the storage box 1701, thereby preventing the storage box 1701 pushed into the first storage groove 14 from accidentally slipping out when the equipment moves, thereby causing the tool to fall.

[0057] refer to Figure 6-9 The adjusting and fixing assembly 18 includes two groups of first fixing blocks 1801, which are fixedly installed on the storage box 1, and a second adjusting plate 1802 is adjustably arranged between the first fixing blocks 1801. The second adjusting plate 1802 is provided with a first card slot 1803, and the first card block 6 can be clamped in the first card slot 1803. The second adjusting plate 1802 is provided with a first adjusting slot 1804 and a second adjusting slot 1805. The second adjusting slot 1805 has two groups of stabilizing slots 1806 on the upper and lower surfaces. A second fixing block 1807 is fixedly installed in the second adjusting slot 1805, and springs 1809 are fixedly installed on both sides of the second fixing block 1807. The other end of the spring 1809 is fixedly connected to a moving block 1810. The moving block 1810 is slidably arranged in the second adjusting slot 1805. A guide column 1808 is provided in the spring 1809, and one end of the guide column 1808 is fixedly connected to the second fixed block 1807.

[0058] The above solution is adopted: through the design of the storage box 1, the first clamping block 6, the adjustment and fixing assembly 18, the first fixing block 1801, the second adjustment plate 1802, the first clamping slot 1803, the first adjustment slot 1804, the second adjustment slot 1805, the stabilizing slot 1806, the second fixing block 1807, the guide column 1808, the spring 1809 and the moving block 1810, so that when the cover 5 is closed, the first clamping block 6 can be clamped in the first clamping slot 1803, thereby achieving the effect of positioning the cover 5, and the moving block 1810 can be in the second adjustment slot 1805 When the moving block 1810 slides, one end of the spring 1809 is squeezed toward the other end simultaneously, and due to the design of the guide column 1808, the spring 1809 will only move in a specific direction when squeezed, avoiding the overall bending deformation of the spring 1809 when squeezed, and when the squeezing force on the spring 1809 disappears, the spring 1809 can adjust the moving block 1810 to a suitable position through its own elastic force, thereby achieving the effect of positioning the moving block 1810, making the device more efficient and convenient to use.

[0059] refer to Figure 7 The upper and lower surfaces of the moving block 1810 are fixedly installed with stabilizing blocks 1811, and the stabilizing block 1811 can slide in the stabilizing groove 1806 at the same time. The other end of the moving block 1810 is fixedly installed with a third clamping block 1814. A second square groove 1818 is provided on the first fixed block 1801, and several groups of fourth clamping blocks 1819 are arranged in the second square groove 1818. The third clamping block 1814 can be fixedly clamped between the fourth clamping blocks 1819.

[0060] The above-mentioned solution is adopted: through the design of the stabilizing groove 1806, the movable block 1810, the stabilizing block 1811, the third clamping block 1814, the second square groove 1818 and the fourth clamping block 1819, the movable block 1810 can synchronously follow the stabilizing block 1811 to slide in the stabilizing groove 1806 when the position is adjusted, thereby achieving the effect of improving the stability of the stabilizing block 1811 and avoiding the movable block 1810 from shaking and accidentally falling when the position is adjusted.

[0061] refer to Figure 10 A second connecting block 1812 is fixedly installed on one side of the moving block 1810, and a connecting plate 1813 is jointly installed on the second connecting block 1812. A second adjusting block 1815 is fixedly installed on the inner side of the connecting plate 1813. The second adjusting block 1815 can slide in the first adjusting groove 1804. A third connecting block 1816 is fixedly installed on the second adjusting block 1815. Pulling blocks 1817 are fixedly installed on the upper and lower surfaces of the third connecting block 1816. Positioning blocks 1820 are fixedly installed on both sides of the second adjusting plate 1802. A shift column 1821 is rotatably installed on the positioning block 1820, and a handle 1822 is jointly fixedly installed on the shift column 1821.

[0062] The above solution is adopted: through the design of the second adjustment plate 1802, the moving block 1810, the second connecting block 1812, the connecting plate 1813, the second adjustment block 1815, the third connecting block 1816, the pulling block 1817, the positioning block 1820, the displacement column 1821 and the handle 1822, when the cover 5 is closed, the staff can pull the pulling block 1817, and when the pulling block 1817 is pulled, the third connecting block 1816 is synchronously driven to adjust the position. When the position of the second adjusting block 1815 is adjusted, the second adjusting block 1815 is synchronously driven to adjust the position in the first adjusting slot 1804. When the position of the second adjusting block 1815 is adjusted in the first adjusting slot 1804, the second adjusting block 1815 synchronously drives the connecting plate 1813 and the second connecting block 1812 to adjust the position synchronously, thereby achieving the effect of driving the moving block 1810 to adjust the position in the second adjusting slot 1805. When the moving block 1810 is adjusting the position, it synchronously drives the third clamping block 1814 to adjust the position. The position is adjusted, so that the third clamping block 1814 fixed between the fourth clamping blocks 1819 can be adjusted in position, thereby achieving the effect that the second adjustment plate 1802 can be adjusted in position on the second square groove 1818 according to the needs of use, which is convenient for the opening and closing of the cover 5, and when the second adjustment plate 1802 is adjusted to the appropriate position, the user can release the pulling block 1817, and when the staff stops pulling the pulling block 1817, the spring 1809 can automatically reset the moving block 1810, so that the clamping block 1714 is re-clamped and fixed between the fourth clamping blocks 1819, thereby achieving the effect that the second adjustment plate 1802 can be quickly adjusted in position according to the needs of use, and the second adjustment plate 1802 can be fixed when it is adjusted to the appropriate position, thereby improving the working efficiency of the equipment, reducing the time consumption of switching the equipment when in use, and facilitating the use of the equipment. After the equipment is used, the staff can quickly move the equipment through the handle 1822, thereby achieving the effect of facilitating the overall movement of the equipment.

[0063] Working principle of the present invention:

[0064] When in use, the cover 5 can be adjusted to a specific angle on the storage box 1 by cooperating with the storage box 1, the positioning column 2, the adjustment column 3 and the first screw 19. The cover 5 can be replaced by adjusting the first screw 19. When the cover 5 is closed, the first sealing ring 22 and the second sealing ring 23 can cooperate with each other, so that the device has good sealing performance. When the device accidentally falls and the lower surface of the storage box 1 is hit, the impact force on the lower surface of the storage box 1 can be transmitted to the first fixing plate 1501 through the storage box 1. When the impact force is transmitted to the first fixing plate 1501, it can be weakened by the shock absorber 1504. The shock absorbing component 15 can be quickly installed in the placement slot 7 according to specific needs of use, thereby protecting the low-frequency detector body 16 and facilitating The shock absorbing assembly 15 can be maintained and replaced. When the equipment is in use, the storage box 1701 can be quickly installed in the first storage groove 14 through the cooperation of the first slider 1702 and the first slide groove 21. The tool or the connecting line can be placed in the second storage groove 1703 when being stored, and the elastic rope 1706 can be used to bundle the tool or the connecting line when the tool or the connecting line is placed in the second storage groove 1703. The tool or the connecting line can be placed in the third storage groove 1704. When the tool or the connecting line is placed in the third storage groove 1704, the staff can hold the displacement plate 1711 through the cooperation of the first square groove 1707, the first clamping block 1708 and the second clamping block 1709 to make the protective plate 1710 quickly installed in the third storage groove 170 4, the effect of quickly closing the third storage slot 1704 is achieved, which is conducive to the orderly storage of tools. When the storage box 1701 has finished storing the tools, it can be pushed into the first storage slot 14. When the storage box 1701 is pushed into the first storage slot 14, the first adjusting block 11 can be rotated. When the first adjusting block 11 is rotated, the blocking block 12 is also synchronously adjusted, so that the blocking block 12 can block the storage box 1701. The blocking block 12 can be adjusted to make the clamping block 1714 and the blocking groove 13 engage with each other, thereby achieving the effect of positioning the storage box 1701, and preventing the storage box 1701 pushed into the first storage slot 14 from accidentally sliding out when the device is moved. When the cover 5 is closed, the first clamping block 6 can be clamped in the first clamping slot 1803, and the moving block 1810 can be in the first clamping slot 1804. When the movable block 1810 slides, one end of the spring 1809 is squeezed toward the other end synchronously. Due to the design of the guide column 1808, the spring 1809 will only move in a specific direction when being squeezed, thereby avoiding the overall bending deformation of the spring 1809 when being squeezed. When the squeezing force on the spring 1809 disappears, the spring 1809 can adjust the movable block 1810 to a suitable position through its own elastic force, thereby achieving the effect of positioning the movable block 1810. When the movable block 1810 is adjusting its position, the stabilizing block 1811 can synchronously follow the stabilizing block 1811 to slide in the stabilizing groove 1806. When the cover 5 is closed, the staff can pull the pulling block 1817.When the pulling block 1817 is pulled, the third connecting block 1816 is synchronously driven to adjust its position. When the third connecting block 1816 is adjusted in position, the second adjusting block 1815 is synchronously driven to adjust its position in the first adjusting slot 1804. When the second adjusting block 1815 is adjusted in position in the first adjusting slot 1804, the second adjusting block 1815 synchronously drives the connecting plate 1813 and the second connecting block 1812 to adjust their positions synchronously. When the moving block 1810 is adjusted in position, the third clamping block 1814 is synchronously driven to adjust its position, so that the third clamping block 1814 fixed between the fourth clamping blocks 1819 is adjusted in position, which facilitates the opening and closing of the cover plate 5, and the second adjusting plate 1802 is adjusted to a suitable position. When the user releases the pulling block 1817, the spring 1809 automatically resets the moving block 1810 when the operator stops pulling the pulling block 1817, so that the clamping block 1714 is clamped and fixed between the fourth clamping blocks 1819 again, so that the second adjustment plate 1802 can be quickly adjusted according to the needs of use, and the second adjustment plate 1802 can be fixed when it is adjusted to the appropriate position, thereby improving the working efficiency of the equipment, reducing the time consumption of switching the equipment on and off during use, and facilitating the use of the equipment. After use, the equipment can be quickly moved by the handle 1822. After use, the handle 1822 can be adjusted to the appropriate position of the positioning block 1820, and the equipment can be placed in the appropriate position after use.

[0065] In summary, the low-frequency detection device for the grounding point of a DC system comprises a storage box 1, a positioning column 2, an adjustment column 3, a first adjustment plate 4, a cover plate 5, a first clamping block 6, a placement slot 7, a first screw hole 8, a first groove 9, a second clamping block 10, a first adjustment block 11, a blocking block 12, a blocking slot 13, a first receiving slot 14, a shock absorbing assembly 15, a first fixing plate 1501, a second fixing plate 1502, a second screw 1503, a shock absorber 1504, and a low-frequency detector body 16. Storage assembly 17, storage box 1701, first slider 1702, second storage slot 1703, third storage slot 1704, first connecting block 1705, elastic rope 1706, first square groove 1707, first clamping block 1708, second clamping block 1709, protective plate 1710, displacement plate 1711, pull plate 1712, installation block 1713, clamping block 1714, adjustment and fixing assembly 18, first fixing block 1801, second adjustment plate 1802 , first card slot 1803, first adjustment slot 1804, second adjustment slot 1805, stabilizing slot 1806, second fixing block 1807, guide column 1808, spring 1809, moving block 1810, stabilizing block 1811, second connecting block 1812, connecting plate 1813, third card block 1814, second adjustment block 1815, third connecting block 1816, pulling block 1817, second square groove 1818, fourth card block 1819, positioning block 1820, displacement column 1821, handle 1822, first screw 19, third screw 20, first slide groove 21, first sealing ring 22 and second sealing ring 23 cooperate with each other, solves the problem that commonly used low-frequency detectors are inconvenient to adjust the corresponding mechanism of the equipment for quick opening and closing operations when in use or after use, which consumes a long time, it is inconvenient to carry other tools to work when the equipment is in use, and other detection tools need to be carried additionally, which is more troublesome, and the equipment does not have corresponding shock absorption effect.

[0066] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A low-frequency detection device for a DC system grounding point, comprising a storage box (1), characterized in that: A positioning column (2) is fixedly installed on one side of the storage box (1), a cover plate (5) is adjustably installed on the positioning column (2), a first clamping block (6) is fixedly installed on the cover plate (5), a placement slot (7) is provided on the storage box (1), a first screw hole (8) is provided on the placement slot (7), first grooves (9) are provided on both sides of the placement slot (7), a second clamping block (10) is fixedly installed on the first groove (9), a first adjustment block (11) is adjustably installed on one side of the storage box (1), a first storage slot (14) is provided on one side of the storage box (1), a shock absorbing component (15) is detachably installed in the placement slot (7), a low-frequency detector body (16) is provided on the shock absorbing component (15), a storage component (17) is detachably installed in the first storage slot (14), and an adjustment fixing component (18) is provided on the storage box (1); The adjusting and fixing assembly (18) comprises two groups of first fixing blocks (1801), the first fixing blocks (1801) are fixedly mounted on the storage box (1), a second adjusting plate (1802) is adjustably arranged between the first fixing blocks (1801), a first card slot (1803) is provided on the second adjusting plate (1802), the first card block (6) can be snapped into the first card slot (1803), the second adjusting plate (1802) is provided with a first adjusting slot (1804) and a second adjusting slot (1805), the second adjusting slot (1805) is provided ) are provided with two sets of stabilizing grooves (1806) on the upper and lower surfaces, a second fixed block (1807) is fixedly installed in the second adjustment groove (1805), springs (1809) are fixedly installed on both sides of the second fixed block (1807), the other end of the spring (1809) is fixedly connected to a moving block (1810), the moving block (1810) is slidably set in the second adjustment groove (1805), a guide column (1808) is provided in the spring (1809), and one end of the guide column (1808) is fixedly connected to the second fixed block (1807); An adjusting column (3) is rotatably mounted on the positioning column (2), a first adjusting plate (4) is fixedly mounted on the adjusting column (3), first screws (19) are provided at both ends of the adjusting column (3), a cover plate (5) is commonly connected to the first adjusting plate (4), a first sealing ring (22) is fixedly mounted on the cover plate (5), a second sealing ring (23) is fixedly mounted on the storage box (1), and the cover plate (5) can perfectly cover the storage box (1).

2. A low-frequency detection device for a DC system grounding point according to claim 1, characterized in that: The shock absorbing assembly (15) comprises a first fixing plate (1501) and a second fixing plate (1502), wherein a second screw (1503) is threadedly mounted on the first fixing plate (1501), and a plurality of shock absorbers (1504) are provided between the first fixing plate (1501) and the second fixing plate (1502), wherein the second screw (1503) can be threadedly mounted in the first screw hole (8).

3. The low-frequency detection device for a DC system grounding point according to claim 1, characterized in that: The storage assembly (17) comprises a storage box (1701), and first sliders (1702) are fixedly mounted on both sides of the upper surface of the storage box (1701), and the first sliders (1702) can slide on the first slide groove (21).

4. A low-frequency detection device for a DC system grounding point according to claim 3, characterized in that: The storage box (1701) is provided with a second storage slot (1703) and a third storage slot (1704), a plurality of first connection blocks (1705) are fixedly installed in the second storage slot (1703), and elastic ropes (1706) are fixedly installed on both sides of the first connection blocks (1705).

5. A low-frequency detection device for a DC system grounding point according to claim 4, characterized in that: A first square groove (1707) is provided on both sides of the third receiving slot (1704), a first clamping block (1708) is fixedly installed in the first square groove (1707), a second clamping block (1709) is detachably installed on the first clamping block (1708), a protective plate (1710) is commonly connected between the second clamping blocks (1709), a displacement plate (1711) is fixedly installed on the upper surface of the protective plate (1710), and a pull plate (1712) is fixedly installed at one end of the storage box (1701).

6. A low-frequency detection device for a DC system grounding point according to claim 5, characterized in that: Mounting blocks (1713) are fixedly mounted on both sides of the pull plate (1712), a clamping block (1714) is fixedly mounted on the mounting block (1713), a third screw (20) is threadedly mounted on the storage box (1), the first adjustment block (11) is rotatably mounted on the third screw (20), a blocking block (12) is fixedly mounted on the first adjustment block (11), a blocking groove (13) is provided on the blocking block (12), and the blocking block (12) can be adjusted so that the blocking groove (13) and the clamping block (1714) can be clamped.

7. The low-frequency detection device for a DC system grounding point according to claim 1, characterized in that: The upper and lower surfaces of the movable block (1810) are fixedly mounted with stabilizing blocks (1811), and the stabilizing blocks (1811) can slide in the stabilizing groove (1806) at the same time. The other end of the movable block (1810) is fixedly mounted with a third clamping block (1814), and the first fixed block (1801) is provided with a second square groove (1818), and the second square groove (1818) is provided with a plurality of groups of fourth clamping blocks (1819), and the third clamping block (1814) can be fixedly clamped between the fourth clamping blocks (1819).

8. A low-frequency detection device for a DC system grounding point according to claim 7, characterized in that: A second connecting block (1812) is fixedly mounted on one side of the moving block (1810), and a connecting plate (1813) is mounted on the second connecting block (1812). A second adjusting block (1815) is fixedly mounted on the inner side of the connecting plate (1813). The second adjusting block (1815) can slide in the first adjusting slot (1804). A third connecting block (1816) is fixedly mounted on the second adjusting block (1815). Pulling blocks (1817) are fixedly mounted on the upper and lower surfaces of the third connecting block (1816). Positioning blocks (1820) are fixedly mounted on both sides of the second adjusting plate (1802). A displacement column (1821) is rotatably mounted on the positioning block (1820), and a handle (1822) is fixedly mounted on the displacement column (1821).

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