A ring main unit cable head positioning device

Abstract

The utility model relates to ring main unit cable installation technical field, concretely discloses a kind of ring main unit cable head positioning device, including limiting frame and the two groups of limiting arc blocks of slidingly being set in limiting frame, the side of two groups of limiting arc blocks is far from each other and is fixedly connected with limiting plate, the utility model is limited by setting limiting frame, limiting arc block, limiting plate, positioning plate one, adjusting assembly and sliding assembly, sliding assembly drives two groups of positioning plate one to move respectively and tightly corresponding two sides of ring main unit inner wall, limiting frame is positioned, prevent shaking, adjusting assembly drives two groups of limiting plate and drives limiting arc block to mutually close to cable and is fixed, further to the cable head is fixed, can limit cable radial, axial displacement, prevent cable and appear deviation or shaking after being penetrated, avoid the problem such as poor contact, insulation failure caused by cable head connection installation shaking due to cable being subjected to external factors.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit cable installation technology, specifically a ring main unit cable head positioning device. Background Technology

[0002] After the cable is inserted into the ring main unit, a positioning device is used to prevent shaking and detachment. With the help of cable fixing brackets, the positioning device is used to fix the cable body at the inlet or outlet end of the cable entering the cabinet (near the cabinet wall), directly offsetting the sagging force generated by the cable's own weight and the vibration caused by the external environment; at the same time, it prevents the cable head from detaching from the components inside the cabinet due to vibration.

[0003] Existing ring main unit cable heads are typically installed and connected by inserting them into the cabinet through an opening at the bottom of the ring main unit. When the external cable is pulled, collided, or shakes due to environmental factors (such as wind, equipment vibration, etc.), the external force is directly transmitted to the connection between the cable head and the cabinet, which can easily lead to loosening or displacement of the cable head and the wiring terminal inside the cabinet. In severe cases, it can even cause the cable head to fall off, resulting in poor electrical contact, power outage, or short circuits due to changes in insulation gaps, which may pose safety hazards. To address these issues, a ring main unit cable head positioning device is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a cable head positioning device for ring main units to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cable head positioning device for a ring main unit includes a limiting frame and two sets of limiting arc blocks slidably disposed within the limiting frame. Each of the two sets of limiting arc blocks is fixedly connected to a limiting plate on the side away from each other. An adjustment component for driving the limiting plate to move is provided inside the limiting frame.

[0007] The adjustment assembly includes a screw and a guide rod. The two ends of the screw are rotatably connected to the two sides of the inner wall of the limiting frame, and the two ends of the guide rod are fixedly connected to the two sides of the inner wall of the limiting frame. The limiting plate is provided with a screw hole for threaded connection with the screw and a guide hole for sliding with the guide rod.

[0008] The limiting frame is provided with positioning plates on both sides. The top and bottom of the limiting frame are fixedly connected with two sets of fixing blocks. The fixing blocks are provided with sliding components for adjusting the positioning plates to move. The limiting frame is provided with positioning plates on one side. The limiting frame is provided with moving components for adjusting the positioning plates to slide.

[0009] In one alternative embodiment: the sliding assembly includes a second screw and a second guide rod. The second screw is rotatably connected to one side of the first positioning plate. The second guide rod is arranged parallel to the second screw and is fixedly connected to one side of the first positioning plate. One set of the fixing blocks has a second thread for threaded connection with the second screw, and another set of the fixing blocks has a second guide hole for sliding with the second guide rod.

[0010] In one alternative embodiment: the moving component includes positioning blocks and screw three. Two sets of positioning blocks are fixedly connected to the top of the limiting frame. Screw three is rotatably connected to one side of positioning plate two. One set of positioning blocks has screw holes three for threaded connection with screw three. One side of positioning plate two is fixedly connected to guide rod three. The other set of positioning blocks has guide holes three for sliding with guide rod three.

[0011] In one alternative: a rubber pad is provided on the side of the limiting arc block closest to the cable.

[0012] In one alternative: the two sets of threads on the screw that correspond to the screw hole have opposite directions of rotation.

[0013] In one alternative: a screw block is installed at one end of the screw that extends outside the limiting frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model incorporates a limiting frame, limiting arc blocks, limiting plates, positioning plates, an adjusting component, and a sliding component. The sliding component drives two sets of positioning plates to move and respectively adhere to the corresponding sides of the inner wall of the ring main unit, limiting the limiting frame and preventing shaking. The adjusting component drives the two sets of limiting plates to move the limiting arc blocks closer together to fix the cable and further fix the cable head. This can limit the radial and axial displacement of the cable, prevent the cable from shifting or shaking after insertion, and avoid problems such as poor contact and insulation failure caused by shaking of the cable head connection due to external factors.

[0016] This utility model, by setting a second positioning plate and a moving component, allows the second positioning plate to be adjusted so that it fits snugly against the side corresponding to the cabinet door, thereby further fixing the limiting frame. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure at the location of the limiting arc block in this utility model.

[0019] Figure 3This is a structural diagram of the location of the fixing block in this utility model.

[0020] Figure 4 This is a schematic diagram of the structure where the positioning block is located in this utility model.

[0021] In the diagram: 11. Limiting frame; 12. Limiting arc block; 13. Limiting plate; 14. Screw 1; 15. Guide rod 1; 16. Fixing block; 17. Positioning plate 1; 18. Screw 2; 19. Guide rod 2; 20. Screw hole 1; 21. Guide hole 1; 22. Positioning plate 2; 23. Positioning block; 24. Screw 3; 25. Guide rod 3. Detailed Implementation

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 In this embodiment, a ring main unit cable head positioning device includes a limiting frame 11 and two sets of limiting arc blocks 12 slidably disposed in the limiting frame 11. Each of the two sets of limiting arc blocks 12 is fixedly connected to a limiting plate 13 on the side that is far apart from each other. An adjustment component for driving the limiting plate 13 to move is provided in the limiting frame 11.

[0025] The adjustment assembly includes a screw 14 and a guide rod 15. The two ends of the screw 14 are rotatably connected to both sides of the inner wall of the limiting frame 11, and the two ends of the guide rod 15 are fixedly connected to both sides of the inner wall of the limiting frame 11. The limiting plate 13 is provided with a screw hole 20 for threaded connection with the screw 14 and a guide hole 21 for sliding with the guide rod 15. When the screw 14 rotates, it drives the two sets of limiting plates 13 to move the limiting arc blocks 12 closer to the cable. The two sets of limiting plates 13 slide on a set of guide rods 15, and the two sets of limiting arc blocks 12 fix the cable to prevent it from shaking. This limits the radial and axial displacement of the cable, prevents the cable from shifting or shaking after insertion, and avoids problems such as poor contact and insulation failure caused by shaking of the cable head connection due to external factors.

[0026] Positioning plates 17 are provided on both sides of the limiting frame 11. Two sets of fixing blocks 16 are fixedly connected to the top and bottom of the limiting frame 11. Sliding components for adjusting the movement of positioning plates 17 are provided on the fixing blocks 16. Positioning plates 22 are provided on one side of the limiting frame 11. Moving components for adjusting the movement of positioning plates 22 are provided on the limiting frame 11.

[0027] The sliding assembly includes a second screw 18 and a second guide rod 19. The second screw 18 is rotatably connected to one side of the first positioning plate 17. The second guide rod 19 is arranged parallel to the second screw 18 and is fixedly connected to one side of the first positioning plate 17. One set of the fixing blocks 16 has a threaded connection for threaded connection with the second screw 18, and another set of fixing blocks 16 has a guide hole for sliding with the second guide rod 19. Rotating the two sets of second screws 18 causes the first positioning plate 17 to move the second guide rod 19, so that the two sets of first positioning plates 17 are respectively pressed against the corresponding sides of the inner wall of the ring main unit, limiting the position of the limiting frame 11 and preventing shaking.

[0028] The moving component includes positioning blocks 23 and screws 24. Two sets of positioning blocks 23 are fixedly connected to the top of the limiting frame 11. Screws 24 are rotatably connected to one side of positioning plate 22. One set of positioning blocks 23 has screw holes 3 for threaded connection with screws 24. One side of positioning plate 22 is fixedly connected to guide rods 25. The other set of positioning blocks 23 has guide holes 3 for sliding with guide rods 25. Rotating screws 24 causes positioning plate 22 to move guide rods 25, so that positioning plate 22 is pressed against the side corresponding to the cabinet door, which can further fix the limiting frame 11.

[0029] A rubber pad is provided on the side of the limiting arc block 12 near the cable. By providing the rubber pad, the friction with the cable can be increased, while avoiding scratching the cable surface.

[0030] The two sets of threads on the screw 14, corresponding to the screw hole 20, have opposite directions of rotation. By setting the screw 14 with opposite directions of rotation, it is convenient to drive the two sets of limiting plates 13 to move closer or further apart.

[0031] A screw block is installed at one end of the screw 14 that extends outside the limiting frame 11. By setting the screw block, it is easy to rotate the screw 14.

[0032] The working principle of this utility model is as follows: When installing the cable head, firstly, the limiting frame 11 is placed inside the ring main unit, so that the bottom of the limiting arc block 12 is pressed against the bottom of the ring main unit, and the center line of the two sets of limiting arc blocks 12 is aligned with the hole opened at the bottom of the ring main unit. Then, the two sets of screws 18 are rotated in sequence, so that the positioning plate 17 drives the guide rod 19 to move, so that the two sets of positioning plates 17 are pressed against the corresponding sides of the inner wall of the ring main unit, limiting the limiting frame 11 and preventing shaking. At the same time, the screw 24 is rotated, so that the positioning plate 22 drives the guide rod 25 to move, so that the positioning plate 22 is pressed against the side corresponding to the cabinet door, which can further fix the cable head. After fixing the limiting frame 11, the cable is passed through the hole opened at the bottom of the ring main unit and between the two sets of limiting arc blocks 12. Then, the screw block is rotated, which drives the screw 14 to rotate. As the screw 14 rotates, it drives the two sets of limiting plates 13 to move the limiting arc blocks 12 closer to the cable. The two sets of limiting plates 13 slide on a set of guide rods 15. The two sets of limiting arc blocks 12 fix the cable to prevent the cable from shaking, and thus limit the cable head. This can limit the radial and axial displacement of the cable, prevent the cable from shifting or shaking after being inserted, and avoid problems such as poor contact and insulation failure caused by the shaking of the cable head connection due to external factors.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A cable head positioning device for a ring main unit, comprising a limiting frame (11) and two sets of limiting arc blocks (12) slidably disposed within the limiting frame (11), characterized in that: Both sets of limiting arc blocks (12) are fixedly connected to a limiting plate (13) on the side that is far apart from each other. An adjustment component for driving the limiting plate (13) to move is provided in the limiting frame (11). The adjustment assembly includes a screw (14) and a guide rod (15). The two ends of the screw (14) are rotatably connected to the two sides of the inner wall of the limiting frame (11). The two ends of the guide rod (15) are fixedly connected to the two sides of the inner wall of the limiting frame (11). The limiting plate (13) is provided with a screw hole (20) for threaded connection with the screw (14) and a guide hole (21) for sliding with the guide rod (15). The limiting frame (11) is provided with positioning plate one (17) on both sides. The top and bottom of the limiting frame (11) are fixedly connected with two sets of fixing blocks (16). The fixing blocks (16) are provided with sliding components for adjusting the positioning plate one (17) to move. The limiting frame (11) is provided with positioning plate two (22) on one side. The limiting frame (11) is provided with moving components for adjusting the positioning plate two (22) to slide.

2. The cable head positioning device for a ring main unit according to claim 1, characterized in that: The sliding assembly includes a second screw (18) and a second guide rod (19). The second screw (18) is rotatably connected to one side of the first positioning plate (17). The second guide rod (19) is arranged parallel to the second screw (18) and is fixedly connected to one side of the first positioning plate (17). One set of the fixing blocks (16) is provided with a second thread for threaded connection with the second screw (18), and another set of the fixing blocks (16) is provided with a second guide hole for sliding with the second guide rod (19).

3. The cable head positioning device for a ring main unit according to claim 1, characterized in that: The moving component includes a positioning block (23) and a screw rod (24). Two sets of positioning blocks (23) are fixedly connected to the top of the limiting frame (11). The screw rod (24) is rotatably connected to one side of the positioning plate (22). One set of positioning blocks (23) has a screw hole (3) for threaded connection with the screw rod (24). One side of the positioning plate (22) is fixedly connected to a guide rod (35). The other set of positioning blocks (23) has a guide hole (3) for sliding with the guide rod (35).

4. The cable head positioning device for a ring main unit according to claim 1, characterized in that: A rubber pad is provided on the side of the limiting arc block (12) near the cable.

5. A cable head positioning device for a ring main unit according to claim 1, characterized in that: The two sets of threads on the screw (14) and the screw hole (20) have opposite directions of rotation.

6. The cable head positioning device for a ring main unit according to claim 1, characterized in that: A screw block is installed at one end of the screw (14) extending to the outside of the limiting frame (11).

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