Urban power distribution network fault isolation device facilitating installation

Abstract

The utility model discloses a city distribution network fault isolation device convenient to installation relates to distribution network technical field, this city distribution network fault isolation device convenient to installation, city distribution network fault isolation device convenient to installation, including two device main parts, be provided with fixed cylinder and sleeve joint cylinder between two device main parts, the left surface of fixed cylinder is fixedly connected with the device main part of left end, the right surface of sleeve joint cylinder is fixedly connected with the device main part of right end, be provided with the clamping mechanism between two device main parts, including two triangular clamping blocks, the inner wall fixed connection of fixed cylinder is limited ring, the right surface of two triangular clamping blocks is pressed against the left surface of limited ring, and the user need not additional use clamp clamping fixed two device main parts, and through the abutment of triangular clamping block and limited ring can realize the quick clamping of fixed cylinder and sleeve joint cylinder, and can reach stable state once installation, directly reduce the complexity of installation step, save installation time.

Description

Technical Field

[0001] This utility model relates to the field of power distribution network technology, and in particular to a fault isolation device for urban power distribution networks that is easy to install. Background Technology

[0002] Urban power distribution network fault isolation devices are used to isolate the operation of power distribution lines. An urban power grid is a system that provides electricity to various users in a city. It consists of power generation, transmission, transformation, distribution, and consumption. The power generation stage introduces external power sources or local power plants; the transmission stage transmits electricity to the city through high-voltage lines; the transformation stage converts high-voltage electricity to medium and low voltage through substations; the distribution stage distributes electricity to users through substations and lines; and the consumption stage covers various electricity users, including residents, industry, and commerce. Its function is to ensure a stable power supply to the city, meet the electricity needs of production and daily life, balance power supply and demand through network layout and scheduling, respond to load changes, and improve power supply reliability. When a short circuit, grounding fault, or other fault occurs in the urban power distribution network, the urban power distribution network fault isolation device can isolate the fault area and prevent the fault from spreading.

[0003] Currently, existing fault isolation devices (such as patent number: CN218633075U) disclose a power distribution line fault isolation device, belonging to the field of chip ball implantation technology. It includes a housing and a pusher frame disposed inside the housing. The housing has an internal cavity containing clamping blocks and fixing clamps. The pusher frame is mounted on the clamping blocks and fixing clamps. The pusher frame includes a connecting plate, a guide rod, and a clamping plate. Multiple support rods are provided on the connecting plate, and spring rods are movably mounted on the support rods. The clamping plates are connected to the spring rods, and a stop rod is provided on the clamping plate. Two parallel connecting plates are provided, with a guide rod between them. A retaining sleeve is movably mounted on the guide rod. Slide grooves are formed on opposite sides of both connecting plates, with guide rods disposed inside the slide grooves. A retaining block is provided on the side of the support rod facing the slide groove. This power distribution line fault isolation device has a simple structure, reasonable design, and good practicality.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were discovered:

[0005] After the user finishes using the isolation device, the isolation device needs to be reinstalled and placed into the storage mechanism. However, reinstalling the two isolation devices requires an additional fixing mechanism inside the storage mechanism to prevent the two isolation devices from separating. This installation method may increase the complexity of the isolation device installation, increase the number of operation steps and time consumption. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an easy-to-install urban power distribution network fault isolation device. It solves the problem that after the user finishes using the isolation device, the device needs to be reinstalled and placed back into the storage mechanism. However, reinstalling two isolation devices requires an additional fixing mechanism inside the storage mechanism to prevent the two isolation devices from separating. This installation method may increase the complexity of the isolation device installation and increase the number of operation steps and time consumption.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An easy-to-install urban power distribution network fault isolation device includes two main body components. A fixed cylinder and a connecting cylinder are provided between the two main body components. The left surface of the fixed cylinder is fixedly connected to the left end of the main body component, and the right surface of the connecting cylinder is fixedly connected to the right end of the main body component. A snap-fit ​​mechanism is provided between the two main body components, including two triangular snap-fit ​​blocks. A limit ring is fixedly connected to the inner wall of the fixed cylinder, and the right surface of the two triangular snap-fit ​​blocks abuts against the left surface of the limit ring.

[0009] The socket also has an internal control mechanism, including a movable plate, a movable piece, and two triangular plates.

[0010] Preferably, the fixed cylinder and the sleeve cylinder are movably connected, and the right surfaces of the two triangular blocks are fixedly connected with connecting plates, and the four corners of the movable plate abut against the inside of the sleeve cylinder.

[0011] Preferably, the right surfaces of both connecting plates are in close contact with the left surface of the movable plate, and two limiting rods are provided between the two connecting plates.

[0012] Preferably, both limiting rods pass through the corresponding connecting plates and are fixedly connected to the inner wall of the sleeve.

[0013] Preferably, a spring is provided between the two connecting plates, with both ends of the spring fixedly connected to the corresponding connecting plates. A second spring is fixedly connected to the rear end of the movable plate, with the other end of the second spring fixedly connected to the inner wall of the sleeve.

[0014] Preferably, the upper surface of the movable plate is fixedly connected to the movable piece, the upper surface of the sleeve is provided with the movable piece located inside the long groove, the two triangular plates are parallel to each other and both triangular plates are isosceles triangles, the apex of the two triangular plates faces left, the rear surfaces of the two triangular plates are fixedly connected to the movable plate, and the two ends of the two triangular plates abut against the two connecting long plates.

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

[0016] 1. Users do not need to use additional clamps to hold and fix the two main body of the device. The fixed cylinder and the sleeve cylinder can be quickly snapped together by the abutment of the triangular block and the limiting ring. The stable state can be achieved in one installation, which directly reduces the complexity of the installation steps and saves installation time.

[0017] 2. With the help of the control mechanism, the user only needs to move the moving piece to control the separation or engagement of the triangular block and the limit ring through the cooperation of the triangular plate and the connecting plate, so as to achieve quick disassembly of the fixed cylinder and the sleeve cylinder. Conversely, by releasing the moving piece, the snap-fit ​​installation can be completed again. Attached Figure Description

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a structural diagram of the entire utility model;

[0020] Figure 2 This is a structural diagram of the limiting ring of this utility model;

[0021] Figure 3 This is a structural diagram of the triangular plate of this utility model;

[0022] Figure 4 This is a structural diagram of the connecting long plate of this utility model.

[0023] Legend: 11. Main body of the device; 12. Fixed cylinder; 13. Sleeve cylinder; 14. Triangular block; 15. Limiting ring; 16. Moving plate; 17. Long groove; 18. Limiting rod; 19. Spring 1; 20. Spring 2; 21. Moving plate; 22. Triangular plate; 23. Connecting plate. Detailed Implementation

[0024] This application provides an easy-to-install urban power distribution network fault isolation device, which effectively solves the technical problem that after the user finishes using the isolation device, the isolation device needs to be reinstalled and placed into the storage mechanism. However, reinstalling two isolation devices requires an additional fixing mechanism inside the storage mechanism so that the two isolation devices are no longer separated. This installation method may increase the complexity of the isolation device installation and increase the number of operation steps and time consumption. Example

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in this application embodiment effectively solves the problem that after the user finishes using the isolation device, it needs to be reinstalled and placed back into the storage mechanism. However, reinstalling two isolation devices requires adding an additional fixing mechanism inside the storage device to prevent the two isolation devices from separating. This installation method may increase the complexity of the isolation device installation, increase the number of operation steps and time consumption. The overall idea is as follows:

[0026] To address the problems existing in the prior art, this utility model provides an easy-to-install urban power distribution network fault isolation device, comprising two main body 11. When a fault occurs in the urban power distribution network, maintenance personnel can use the two main body 11 to isolate the faulty line. After the maintenance is completed, the maintenance personnel will reassemble and install the two main body 11 and put them into the toolbox. The two main body 11 are assembled and installed by a fixing cylinder 12 and a connecting cylinder 13. The left surface of the fixing cylinder 12 is fixedly connected to the left main body 11, and the right surface of the connecting cylinder 13 is fixedly connected to the right main body 11. This structural cooperation provides a basic framework for the installation and assembly of the main body 11.

[0027] To enable rapid installation of the two main body 11 devices, a snap-fit ​​mechanism is designed between the main body 11 devices. The core components are two triangular snap-fit ​​blocks 14. A limiting ring 15 is fixedly connected to the inner wall of the fixing cylinder 12. When the two triangular snap-fit ​​blocks 14 are pushed into the fixing cylinder 12 along with the sleeve 13, the right surface of the triangular snap-fit ​​blocks 14 will abut against the left surface of the limiting ring 15, thus completing the snap-fit ​​between the fixing cylinder 12 and the sleeve 13. This enables rapid assembly of the two main body 11 devices. At this time, maintenance personnel do not need to use additional clamps for clamping and fixing. A stable state can be achieved in one installation, which greatly simplifies the installation process.

[0028] To make the snap-fit ​​mechanism easier for maintenance personnel to control, the inside of the sleeve 13 is provided with a control mechanism for controlling the snap-fit ​​mechanism. The control mechanism consists of a moving plate 21, a moving piece 16 and two triangular plates 22. The upper surface of the moving plate 21 is fixedly connected to the moving piece 16. The upper surface of the sleeve 13 is provided with a long groove 17 for the moving piece 16 to move, which allows the moving piece 16 to slide laterally along the long groove 17. The two triangular plates 22 are parallel to each other, are both isosceles triangles with their apex facing left, and their rear surfaces are fixedly connected to the moving plate 21 to form a linkage structure.

[0029] To improve the accuracy of the snap-fit ​​process, the fixed cylinder 12 and the sleeve cylinder 13 adopt a movable snap-fit ​​method. The right surface of the two triangular snap-fit ​​blocks 14 is fixedly connected with the connecting long plate 23. The four corners of the moving plate 21 abut against the inner wall of the sleeve cylinder 13. This design restricts the movement trajectory of the moving plate 21, so that it can only move horizontally and parallel within the sleeve cylinder 13, avoiding tilting.

[0030] To ensure the stability of the locking mechanism, a spring 19 is provided between the two connecting plates 23, with its two ends fixedly connected to the corresponding connecting plates 23. A spring 20 is fixedly connected to the rear end of the moving plate 21, and the other end of the spring 20 is fixedly connected to the inner wall of the sleeve 13. The spring coefficient of the spring 20 is greater than that of the spring 19. When no external force is applied to the moving plate 16, the operating mechanism will be in the default state: the spring 20 pushes the moving plate 21 and the triangular plate 22 to press against the two connecting plates 23. However, because the spring coefficient of the spring 19 is smaller, the two connecting plates 23 will be spread apart by the triangular plate 22, so that the spring 19 remains in a stretched state, thereby ensuring the stable locking of the locking mechanism.

[0031] When the two main body 11 of the device is not used, in order to prevent the two connecting plates 23 from shifting inside 13, the right surface of the two connecting plates 23 is in close contact with the left surface of the moving plate 21. Two limiting rods 18 made of damping material are provided between the two connecting plates 23. When the spring 19 is not stretched, the damping material can effectively restrict the connecting plates 23 from moving freely on the limiting rods 18. At the same time, the two limiting rods 18 pass through the corresponding connecting plates 23 and are fixedly connected to the inner wall of the sleeve 13, forming a precise limit on the connecting plates 23, so that they can only move in parallel. As a result, the triangular locking blocks 14 connected to the connecting plates 23 can only move in parallel, either closer to each other or further away from each other, which completely avoids the problem of position shift during the locking process and significantly improves the operating accuracy.

[0032] Working principle:

[0033] The user inserts the socket 13 into the fixed cylinder 12. At this time, the two triangular locking blocks 14 will enter the fixed cylinder 12 along with the socket 13. When the two triangular locking blocks 14 encounter the limiting ring 15, the opposing inclined surfaces of the two triangular locking blocks 14 will contact the limiting ring 15. At this time, the two triangular locking blocks 14 will be squeezed closer to each other by the limiting ring 15. The two connecting plates 23 will also move closer to each other, squeezing the ends of the two triangular plates 22 out of the two triangular plates 22. At this time, the triangular plates 22 drive the moving plate 21 and the second spring 20 to move to the right until the limiting ring 15 no longer limits the two triangular locking blocks 14. At this time, the spring 20 rebounds and controls the two connecting plates 23 and the triangular block 14 to move away from each other through the triangular plate 22, so as to achieve the purpose of locking the fixing cylinder 12 and the sleeve cylinder 13, so that the two device bodies 11 can be installed quickly. Conversely, after the moving plate 16 is released, the moving plate 16 moves to the left, driving the two triangular blocks 14 to move away from each other and re-abut against the limiting ring 15, so as to realize the re-locking installation of the fixing cylinder 12 and the sleeve cylinder 13. At this time, the user does not need to use additional clamps to clamp and fix the two device bodies 11. The stable state can be achieved in one installation, which directly reduces the complexity of the installation process.

[0034] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An easy-to-install urban power distribution network fault isolation device, comprising two device bodies (11), a fixed cylinder (12) and a connecting cylinder (13) disposed between the two device bodies (11), wherein the left surface of the fixed cylinder (12) is fixedly connected to the left end of the device body (11), and the right surface of the connecting cylinder (13) is fixedly connected to the right end of the device body (11), characterized in that, A snap-fit ​​mechanism is provided between the two main bodies (11), including two triangular snap-fit ​​blocks (14). A limit ring (15) is fixedly connected to the inner wall of the fixed cylinder (12), and the right surface of the two triangular snap-fit ​​blocks (14) abuts against the left surface of the limit ring (15). The sleeve (13) is also equipped with a control mechanism, including a movable plate (21), a movable piece (16) and two triangular plates (22).

2. The easy-to-install urban power distribution network fault isolation device as described in claim 1, characterized in that: The fixed cylinder (12) is movably connected to the sleeve cylinder (13), and the right surfaces of the two triangular blocks (14) are fixedly connected with connecting long plates (23). The four corners of the movable plate (21) are all abutted against the inside of the sleeve cylinder (13).

3. The easy-to-install urban power distribution network fault isolation device as described in claim 2, characterized in that: The right surfaces of the two connecting plates (23) are in close contact with the left surface of the moving plate (21), and two limiting rods (18) are provided between the two connecting plates (23).

4. The easy-to-install urban power distribution network fault isolation device as described in claim 3, characterized in that: Both limiting rods (18) pass through the corresponding connecting plate (23) and are fixedly connected to the inner wall of the sleeve (13).

5. The easy-to-install urban power distribution network fault isolation device as described in claim 4, characterized in that: A spring (19) is provided between the two connecting plates (23). Both ends of the spring (19) are fixedly connected to the corresponding connecting plates (23). A spring (20) is fixedly connected to the rear end of the movable plate (21). The other end of the spring (20) is fixedly connected to the inner wall of the sleeve (13).

6. The easy-to-install urban power distribution network fault isolation device as described in claim 1, characterized in that: The upper surface of the movable plate (21) is fixedly connected to the movable piece (16). The upper surface of the sleeve (13) is provided with a long groove (17). The movable piece (16) is located inside the long groove (17). The two triangular plates (22) are parallel to each other and are both isosceles triangles. The apex of the two triangular plates (22) faces to the left. The rear surfaces of the two triangular plates (22) are fixedly connected to the movable plate (21). The two ends of the two triangular plates (22) abut against the two connecting long plates (23).

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