Testing device for direct-current circuit breaker handcart

Abstract

The utility model provides a testing device for a direct-current circuit breaker handcart, which comprises an equipment mounting rack, a computer and communication equipment, and is characterized in that the equipment mounting rack is provided with testing equipment used for being connected with a direct-current circuit breaker, and the testing equipment is connected with the computer through the communication equipment; the equipment mounting frame comprises a vertically-arranged perforated plate and supporting frames correspondingly arranged on the left side and the right side of the perforated plate, rotatable supporting blocks are arranged below the supporting frames, connecting pieces are arranged at the ends, facing the supporting frames, of the supporting blocks, telescopic rods are arranged at the other ends of the supporting blocks, one ends of the connecting pieces are arranged on the supporting blocks, and the other ends of the connecting pieces are arranged on the telescopic rods. And the other end is detachably connected with the support frame. The testing device for the direct-current circuit breaker handcart can be used for testing and simulating a direct-current source circuit breaker, and has the advantages of being simple in structure and easy to store and use.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment operation and maintenance technology, and in particular relates to a test device for DC circuit breaker handcarts. Background Technology

[0002] To improve employee skills and competence, enhance emergency response efficiency, and ensure uninterrupted power supply, practical training is required for power supply professionals. This training should cover basic equipment operation, equipment principles and composition, routine maintenance and repair, emergency fault handling, and electrical equipment testing. Testing devices should be used to integrate simulation demonstrations, practical teaching, and hands-on training, providing employees with on-site practical opportunities and improving the quality of training. In actual training, a set of on-site DC circuit breaker trucks or a DC circuit breaker truck of the same model can be used. A testing device with testing equipment should be designed and built according to training needs. For example, the testing equipment on this device can simulate the opening and closing operations of the DC circuit breaker, the truck's rocking-in and rocking-out operations, simulated tripping, line testing, emergency tripping, and overcurrent protection functions.

[0003] However, due to the large size of DC circuit breaker trolleys, movement is inconvenient. To better meet training needs, the testing equipment needs to be integrated into the equipment mounting rack of the testing device, facilitating its movement and deployment as required. However, the testing device typically requires the installation of different terminals, opening and closing switches, status indicator lights, current detectors, or voltage detectors, depending on actual needs. Existing equipment mounting racks generally use perforated plates with rails for mounting the testing equipment, placing it on desktops or other platforms. However, this structure is bulky, making storage and relocation inconvenient. Furthermore, improper installation or a large number of devices installed can lead to decreased stability of the testing device and hinder subsequent operation and use by personnel. Utility Model Content

[0004] In view of this, the present invention aims to provide a test device for DC circuit breaker trucks to solve the problem of inconvenience in using existing test devices after installation.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A testing device for a DC circuit breaker truck includes a mounting frame, a computer, and a communication device. The mounting frame is equipped with a testing device for connecting a DC circuit breaker, and the testing device is connected to the computer via the communication device. The mounting frame includes a vertically arranged perforated plate and support frames corresponding to the left and right sides of the perforated plate. A rotatable support block is provided below the support frame. A connector is provided at one end of the support block facing the support frame, and a telescopic rod is provided at the other end. One end of the connector is set on the support block, and the other end is detachably connected to the support frame. One end of the telescopic rod is set on the support block, and the other end is provided with a clamping block. An adjustment component for raising and lowering the clamping block is provided on the telescopic rod.

[0007] Furthermore, the support block is rotatably mounted on the support frame via a rotating shaft. The support frame has a shaft hole that mates with the rotating shaft, and a fastening bolt is provided at the position corresponding to the shaft hole on the support frame. The support frame also has a threaded hole that mates with the fastening bolt. The rotating shaft has an annular groove that mates with the fastening bolt, and the annular groove is coaxially arranged with the rotating shaft.

[0008] Furthermore, at least two fastening bolts are provided at intervals along the length of the rotation axis, and the threaded holes and annular grooves are provided one-to-one with the fastening bolts.

[0009] Furthermore, the connector is provided with a connecting part for inserting the head of the fastening bolt between the support frame and the connecting part, and the connecting part is provided with an assembly groove that can cooperate with the fastening bolt thread.

[0010] Furthermore, the support block is provided with an assembly hole that slides with the telescopic rod, the connector is installed on the support block by a fixing bolt, the connector is provided with a bolt hole that mates with the fixing bolt, and the support block is provided with a screw hole that mates with the fixing bolt at the position corresponding to the assembly hole, and the screw hole communicates with the assembly hole.

[0011] Furthermore, at least two fixing bolts are provided at intervals along the sliding direction of the telescopic rod.

[0012] Furthermore, the adjustment component includes a threaded post, and the telescopic rod is provided with a mounting hole that mates with the threaded post. One end of the threaded post passing through the mounting hole is provided with a positioning nut, and the other end is connected to the clamping block.

[0013] Furthermore, the telescopic rod has a protrusion at one end corresponding to the clamping block, and the protrusion has a receiving groove for accommodating the clamping block.

[0014] Furthermore, anti-slip pads are provided on the clamping block and the protrusion respectively.

[0015] Compared with the prior art, the DC circuit breaker handcart testing device of this utility model has the following advantages:

[0016] This utility model discloses a DC circuit breaker handcart testing device, which can be used for testing and simulating DC source circuit breakers. It features a simple structure and is easy to store and use. By setting a rotatable support block on the support frame and a telescopic rod on the support block, the rotatable support block can be rotated for storage or unfolding. Furthermore, the unfolded support block can be extended in length by moving the telescopic rod, which helps improve the stability of the equipment mounting frame. In addition, the clamping blocks on the telescopic rod can cooperate with the protrusions to clamp and fix platforms such as tables, further improving the stability of the equipment mounting frame during use and facilitating the operation of the testing equipment on the mounting frame. This enhances the convenience and stability of this testing device during use. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a DC circuit breaker handcart testing device according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the equipment mounting frame in a DC circuit breaker handcart testing device according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the support block in a DC circuit breaker handcart testing device according to an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Equipment mounting frame; 2. Testing equipment; 3. Communication equipment; 4. Computer; 5. Support frame; 6. Connector; 7. Support block; 8. Connecting part; 9. Fastening bolt; 10. Assembly slot; 11. Adjusting nut; 12. Fixing bolt; 13. Telescopic rod; 14. Protrusion; 15. Threaded post; 16. Clamping block; 17. Anti-slip pad; 18. Receiving groove; 19. Positioning nut; 20. Rotating shaft; 21. Annular groove; 22. Screw hole; 23. Assembly hole; 24. Perforated plate. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] A testing device for DC circuit breaker handcarts, such as Figures 1 to 3 As shown, the device includes a mounting bracket 1, a computer 4, and a communication device 3. The mounting bracket 1 is equipped with a test device 2 for connecting a DC circuit breaker. The test device 2 is connected to the computer 4 via the communication device 3. Specifically, the computer 4, communication device 3, and test device 2 can all be existing devices. For example, the test device 2 may include a current detector, a voltage detector, a control switch, an indicator light, etc. The communication device 3 can use existing communication methods such as serial communication devices or wireless communication devices to achieve communication between the test device 2 and the computer 4. This invention does not involve improvements to the above-mentioned devices. Those skilled in the art can select appropriate test devices 2 and corresponding communication devices 3 according to actual needs to achieve communication between the test device 2 and the computer 4; further details are omitted here.

[0028] The main innovation of this utility model lies in the structural design of the testing device, especially the structural design of the equipment mounting frame 1 in the testing device. Specifically, the equipment mounting frame 1 includes a vertically arranged perforated plate 24 and support frames 5 correspondingly arranged on the left and right sides of the perforated plate 24. A rotatable support block 7 is provided below the support frame 5. A connector 6 is provided at one end of the support block 7 facing the support frame 5, and a telescopic rod 13 is provided at the other end. One end of the connector 6 is set on the support block 7, and the other end is detachably connected to the support frame 5. One end of the telescopic rod 13 is set on the support block 7, and a clamping block 16 is provided at the other end. An adjustment component for driving the clamping block 16 to rise and fall is provided on the telescopic rod 13.

[0029] For example, two support frames 5 are provided on the left and right sides of the perforated plate 24, and both support frames 5 are fixed on the perforated plate 24. The perforated plate 24 can be equipped with a rail by screws so as to install the test equipment 2, etc. on the rail.

[0030] Preferably, the support block 7 is rotatably mounted on the support frame 5 via the rotating shaft 20. The support frame 5 is provided with a shaft hole that mates with the rotating shaft 20. A fastening bolt 9 is provided on the support frame 5 at the position corresponding to the shaft hole. The support frame 5 is provided with a threaded hole that mates with the fastening bolt 9. The rotating shaft 20 is provided with an annular groove 21 that mates with the fastening bolt 9. The annular groove 21 is coaxially arranged with the rotating shaft 20.

[0031] For example, the rotating shaft 20 is fixed to the support block 7. By providing an annular groove 21 on the rotating shaft 20, and using the annular groove 21 to cooperate with the fastening bolt 9, the rotating shaft 20 can be limited, ensuring that the rotating shaft 20 can rotate stably within the shaft hole. After the support block 7 is rotated and adjusted to the correct position, the fastening bolt 9 can be further tightened to hold the rotating shaft 20 in place, thus limiting and fixing the rotating shaft 20 and ensuring that the support block 7 can always stably support the column support frame 5.

[0032] In practical applications, at least two fastening bolts 9 are spaced apart along the length of the rotating shaft 20, and the threaded holes and annular grooves 21 are each provided in a one-to-one correspondence with the fastening bolts 9. For example, two, three, or more fastening bolts 9 can be spaced apart. By providing multiple fastening bolts 9, not only is the stability of the fit between the rotating shaft 20 and the shaft hole improved, but the limiting and fixing effect of the fastening bolts 9 on the rotating shaft 20 is also improved, ensuring the stability of the equipment mounting bracket during use and facilitating the installation and operation of the testing equipment 2 by the operator.

[0033] Preferably, the connector 6 is provided with a connecting portion 8 for inserting the head of the fastening bolt 9 between the head and the support frame 5, and the connecting portion 8 is provided with an assembly groove 10 that can mate with the screw of the fastening bolt 9. For example, the connecting portion 8 is set at a right angle to the connector 6, which helps to improve the overall structural strength of the connector 6 and ensures that the connector 6 can play a structural reinforcement role at the connection between the support block 7 and the support frame 5.

[0034] In practical applications, by providing a connecting part 8 on the connector 6 that can be inserted between the head of the fastening bolt 9 and the support frame 5, and by providing an assembly groove 10 on the connecting part 8, after the support block 7 is rotated open, the operator can first loosen the fastening bolt 9, then align the connecting part 8 and insert it between the head of the fastening bolt 9 and the support frame 5, and make the fastening bolt 9 cooperate with the assembly groove 10 on the connecting part 8. Finally, tighten the fastening bolt 9, and use the fastening bolt 9 and the support frame 5 to clamp and fix the connecting part 8, and use the fastening bolt 9 to push against the rotating shaft 20, thereby achieving the limiting and fixing of the connector 6 and the rotating shaft 20. The operation is very simple.

[0035] Optionally, in order to enable the fastening bolt 9 to better limit and fix the connecting part 8 and the rotating shaft 20 at the same time, an adjustable adjusting nut 11 can also be installed on the fastening bolt 9. The connecting part 8 can also be inserted into the gap between the adjusting nut 11 and the support frame 5. By turning the adjusting nut 11, the position of the adjusting nut 11 on the fastening bolt 9 can be adjusted so that the fastening bolt 9 can tighten and fix the rotating shaft 20, while the adjusting nut 11 can also clamp and fix the connecting part 8 together with the support frame 5, thereby achieving the limitation and fixation of the connecting part 6.

[0036] Preferably, the support block 7 is provided with an assembly hole 23 that slides with the telescopic rod 13. The connecting piece 6 is installed on the support block 7 by fixing bolts 12. The connecting piece 6 is provided with bolt holes that mate with the fixing bolts 12. The support block 7 is provided with screw holes 22 corresponding to the assembly hole 23 that mate with the fixing bolts 12. The screw holes 22 communicate with the assembly hole 23. For example, at least two fixing bolts 12 are spaced apart along the sliding direction of the telescopic rod 13. For example, two, three, or more fixing bolts 12 can be spaced apart. The bolt holes and screw holes 22 are all provided one-to-one with the fixing bolts 12. By spaced apart multiple fixing bolts 12, the telescopic rod 13 can be held in place by multiple fixing bolts 12, which can achieve multi-point limiting and fixing of the telescopic rod 13, which is beneficial to improving the stability of the telescopic rod 13 on the support block 7.

[0037] Preferably, the adjustment assembly includes a threaded post 15. The telescopic rod 13 has a mounting hole that mates with the threaded post 15. One end of the threaded post 15, passing through the mounting hole, is provided with a positioning nut 19, and the other end is connected to the clamping block 16. Exemplarily, the threaded post 15 is fixed to the support block 7. The telescopic rod 13 has a protrusion 14 at one end corresponding to the clamping block 16. The protrusion 14 has a receiving groove 18 for accommodating the clamping block 16. By providing the protrusion 14, the clamping block 16 can be accommodated, and after the clamping block 16 is accommodated or removed from the receiving groove 18, the protrusion 14 and the lower surface of the support block 7 can still be on the same plane, so that the support block 7 and the telescopic rod 13 can jointly support the column support frame 5.

[0038] In practical applications, by tightening the positioning nut 19, the clamping block 16 can be raised and lowered to achieve clamping and fixing of the table or other platform. Anti-slip pads 17 are correspondingly provided on the clamping block 16 and the protrusion 14. For example, the anti-slip pads 17 can be made of additive materials and can be glued to the clamping block 16 and the protrusion 14 at positions different from the receiving groove 18. By providing anti-slip pads 17 on the clamping block 16 and the protrusion 14, the overall stability of the equipment mounting frame 1 is improved when the operating platform such as the table is clamped and fixed using the clamping block 16 and the protrusion 14.

[0039] Specifically, this testing device can be deployed or stored in the following ways:

[0040] When it is necessary to store this testing device, the operator can first disconnect the computer 4 from the communication device, and the communication device from the testing device. Then, by loosening the fastening bolts 9, the restriction on the rotating shaft 20 and the connecting piece 6 is released, and by loosening the fixing bolts 12, the restriction on the telescopic rod 13 is released. Afterwards, the support block 7 can be rotated and the telescopic rod 13 can be retracted into the mounting hole 23, thus realizing the storage of the equipment mounting frame 1. This convenient operation allows for the disassembly and storage of this testing device, which helps to reduce the difficulty of moving and storing this testing device.

[0041] When this testing device is needed, the operator can first rotate and open the support block 7, then use the fastening bolts 9 to limit and fix the support block 7 and the connecting piece 6, use the connecting piece 6 to connect the support block 7 and the support frame 5, and place the support frame 5 on a platform such as a desktop to achieve the initial positioning of the equipment mounting frame 1. Then, the telescopic rod 13 can be adjusted telescopically, and the clamping block 16 on the telescopic rod 13 cooperates with the protrusion 14 of the telescopic rod 13 to clamp and fix the table. Then, the fixing bolts 12 are used to limit and fix the telescopic rod 13. At this time, the telescopic rod 13 not only increases the length of the support block 7, ensuring that the support block 7 can provide good support for the support frame 5, but also further improves the stability of the support frame 5 on the desktop or other platform by clamping and fixing the telescopic rod 13 with the clamping block 16, ensuring that the operator can easily operate the testing device 2 on the equipment mounting frame 1. Finally, the connection between the testing device 2 and the communication device 3, between the testing device 2 and the DC circuit breaker, and between the communication device 3 and the computer 4 can be made to complete the overall assembly of the testing device.

[0042] This utility model discloses a DC circuit breaker handcart testing device, which can be used for testing and simulating DC source circuit breakers. It features a simple structure and is easy to store and use. By setting a rotatable support block on the support frame and a telescopic rod on the support block, the rotatable support block can be rotated for storage or unfolding. Furthermore, the unfolded support block can be extended in length by moving the telescopic rod, which helps improve the stability of the equipment mounting frame. In addition, the clamping blocks on the telescopic rod can cooperate with the protrusions to clamp and fix platforms such as tables, further improving the stability of the equipment mounting frame during use and facilitating the operation of the testing equipment on the mounting frame. This enhances the convenience and stability of this testing device during use.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing device for a DC circuit breaker truck, comprising a mounting bracket (1), a computer (4), and a communication device (3), wherein the mounting bracket (1) is provided with a testing device (2) for connecting a DC circuit breaker, and the testing device (2) is connected to the computer (4) via the communication device (3), characterized in that: The equipment mounting frame (1) includes a vertically arranged perforated plate (24) and support frames (5) arranged on the left and right sides of the perforated plate (24). A rotatable support block (7) is provided below the support frame (5). A connector (6) is provided on one end of the support block (7) facing the support frame (5), and a telescopic rod (13) is provided on the other end. One end of the connector (6) is set on the support block (7), and the other end is detachably connected to the support frame (5). One end of the telescopic rod (13) is set on the support block (7), and a clamping block (16) is provided on the other end. An adjustment component for driving the clamping block (16) to rise and fall is provided on the telescopic rod (13).

2. The testing device for a DC circuit breaker trolley according to claim 1, characterized in that: The support block (7) is rotatably mounted on the support frame (5) via the rotating shaft (20). The support frame (5) is provided with a shaft hole that mates with the rotating shaft (20). The support frame (5) is provided with a fastening bolt (9) at the position corresponding to the shaft hole. The support frame (5) is provided with a threaded hole that mates with the fastening bolt (9). The rotating shaft (20) is provided with an annular groove (21) that mates with the fastening bolt (9). The annular groove (21) is coaxially arranged with the rotating shaft (20).

3. The testing device for a DC circuit breaker trolley according to claim 2, characterized in that: At least two fastening bolts (9) are provided at intervals along the length of the rotating shaft (20), and the threaded holes and annular grooves (21) are provided one-to-one with the fastening bolts (9).

4. The testing device for a DC circuit breaker trolley according to claim 3, characterized in that: The connector (6) is provided with a connecting part (8) for inserting the head of the fastening bolt (9) and the support frame (5), and the connecting part (8) is provided with an assembly groove (10) that can cooperate with the screw of the fastening bolt (9).

5. A testing device for a DC circuit breaker trolley according to any one of claims 1-4, characterized in that: The support block (7) is provided with an assembly hole (23) that slides with the telescopic rod (13). The connector (6) is installed on the support block (7) by a fixing bolt (12). The connector (6) is provided with a bolt hole that mates with the fixing bolt (12). The support block (7) is provided with a screw hole (22) that mates with the fixing bolt (12) at the position corresponding to the assembly hole (23). The screw hole (22) communicates with the assembly hole (23).

6. The testing device for a DC circuit breaker trolley according to claim 5, characterized in that: At least two fixing bolts (12) are provided at intervals along the sliding direction of the telescopic rod (13).

7. The testing device for a DC circuit breaker trolley according to claim 1, characterized in that: The adjustment assembly includes a threaded post (15), and the telescopic rod (13) is provided with a mounting hole that mates with the threaded post (15). One end of the threaded post (15) passing through the mounting hole is provided with a positioning nut (19), and the other end is connected to the clamping block (16).

8. The testing device for a DC circuit breaker trolley according to claim 7, characterized in that: The telescopic rod (13) has a protrusion (14) at one end corresponding to the clamping block (16), and the protrusion (14) has a receiving groove (18) for accommodating the clamping block (16).

9. A testing device for a DC circuit breaker trolley according to claim 8, characterized in that: Anti-slip pads (17) are provided on the clamping block (16) and the protrusion (14).

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