Modularized prefabricated cable connector box for electric power engineering
By incorporating a tapping section and a limiting component into the modular prefabricated cable junction box, the problems of sealant air bubbles and cable centering are solved, ensuring that the sealant is tight and the cable is centered, thereby improving the sealing quality of the cable connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI YIGUANG ELECTRIC POWER ENG CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-17
AI Technical Summary
The sealant at existing cable joints is prone to air bubbles during the injection process, which affects the curing quality of the sealant. Furthermore, the cable cannot be centered when bent, affecting the sealing effect.
A modular prefabricated cable junction box was designed. By setting a striking part and a limiting component on the clamp ring, the clamp ring is pounded with a rubber hammer to transmit the vibration force to expel air bubbles, and the cable is supported and centered by the limiting component.
It effectively removes air bubbles from the sealant, ensuring the sealant solidifies firmly and keeps the cable centered even when the cable is bent, thus improving the sealing quality.
Smart Images
Figure CN224138708U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power engineering, and in particular to a modular prefabricated cable junction box for power engineering. Background Technology
[0002] In power engineering, modular prefabricated components are often used to protect cable joints during cable connections to ensure connection efficiency. The existing protection method is to use a prefabricated junction box to cover the cable joint and then seal it by injecting sealant inside. Although this method can achieve the purpose of quick connection and sealing, in actual use, when the sealant enters the box and generates a large number of air bubbles, it will affect the quality of the sealant after curing. Therefore, to address the above problems, a modular prefabricated cable junction box for power engineering is proposed. Utility Model Content
[0003] In view of the above-mentioned problems in the prior art, the main purpose of this utility model is to provide a modular prefabricated cable joint box for power engineering. When a rubber hammer is used to strike the striking part above the clamp ring, the vibration force can be transmitted to the inside of the box through the clamp ring, which can effectively ensure that air bubbles in the sealant are discharged, making the material compact and ensuring the quality of the sealant after solidification.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a modular prefabricated cable junction box for power engineering, including a cable and two sets of box bodies disposed on the outside of the cable. The upper and lower box bodies are connected by bolts at their joints. Limiting frames are fixedly connected to the outside of the box bodies. Clamping rings are provided on the outside of the limiting frames. The upper and lower clamping rings are connected by a first bolt at their joints.
[0005] The box also has evenly distributed limiting components fixedly connected inside.
[0006] Furthermore, two sets of injection pipes are installed on the top of the upper box. The injection pipes are hollow and connected to the box body for injecting sealant.
[0007] Furthermore, each set of boxes has two sets of limiting frames on its outer side, and the center of the limiting frames is recessed.
[0008] Furthermore, each of the clamp rings inside the limiting frame on the outer side of the upper box is fixedly connected to a striking part, and the top of the striking part is flat.
[0009] Furthermore, the limiting component includes a hollow cylinder fixedly connected to the inner wall of the box, and a sliding rod is slidably connected inside the hollow cylinder, with a limiting plate fixedly connected to the other end of the sliding rod.
[0010] The sliding rod has evenly distributed threaded holes on its outer side, and a second bolt is provided on the outer side of the hollow cylinder. The second bolt passes through the hollow cylinder and is spirally connected to one of the threaded holes on the outer side of the sliding rod.
[0011] Furthermore, the inner side of the limiting plate is arc-shaped.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] A ring-shaped clamp is set on the outside of the box. When the sealant is poured, the tapping part above the clamp is struck with a rubber hammer. At this time, the vibration force can be transmitted to the inside of the box through the clamp, which can effectively ensure that the air bubbles in the sealant are discharged, making the material compact and ensuring the quality of the sealant after solidification.
[0014] If the cable inside the box is bent and not centered, it will not be in the center of the sealant and will generally be biased to one side, which may affect subsequent use. Using a limiting component can support the cable, center it, and ensure quality. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the present invention;
[0017] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the limiting plate structure of this utility model.
[0019] Legend: 1. Cable; 2. Box; 3. Injection pipe; 4. Limiting frame; 5. Clamping ring; 6. Striking part; 7. First bolt; 8. Limiting assembly; 801. Hollow cylinder; 802. Sliding rod; 803. Limiting plate; 804. Threaded hole; 805. Second bolt. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0021] Example
[0022] A modular prefabricated cable junction box for power engineering, such as Figure 1-4As shown, it includes a cable 1 and two sets of boxes 2 located outside the cable 1. The boxes 2, which are distributed vertically, are connected by bolts at their joints. Limiting frames 4 are fixedly connected to the outside of each box 2. Clamping rings 5 are provided on the outside of the limiting frames 4. The clamping rings 5, which are distributed vertically, are connected by a first bolt 7.
[0023] Inside the box 2, evenly distributed limiting components 8 are also fixedly connected.
[0024] Two sets of injection pipes 3 are installed on the top of the upper box 2. The injection pipes 3 are hollow and connected to the box 2 for injecting sealant.
[0025] Two sets of limiting frames 4 are provided on the outside of each box 2, and the center of the limiting frame 4 is recessed.
[0026] A striking part 6 is fixedly connected above the clamping ring 5 inside the limiting frame 4 on the outer side of the upper box 2. The top of the striking part 6 is flat.
[0027] In power engineering, when connecting cables, modular prefabricated components are often used to protect the cable connection points to ensure connection efficiency. The existing protection method is to use a prefabricated junction box to cover the cable connection point and then seal it by injecting sealant into the box. Although this method can achieve the purpose of quick connection and sealing, in actual use, when the sealant enters the box and generates a large number of air bubbles, it will affect the quality of the sealant after curing. After the box 2 is installed on the outside of the cable 1, an annular clamp ring 5 is set inside the limiting frame 4 on the outside of the box 2. Then, the sealant is injected. When the sealant is injected, the striking part 6 above the clamp ring 5 is struck with a rubber hammer. At this time, the vibration force can be transmitted to the inside of the box 2 through the clamp ring 5 at multiple angles, which can effectively ensure that the air bubbles in the sealant are discharged, making the material compact and ensuring the quality of the sealant after curing.
[0028] The limiting frame 4 has a recessed part on its outer side, which allows the clamping ring 5 to be located therein, thus achieving the purpose of limiting the clamping ring 5.
[0029] The limiting component 8 includes a hollow cylinder 801 fixedly connected to the inner wall of the box 2. Sliding rods 802 are slidably connected inside the hollow cylinder 801. The other end of the sliding rods 802 is fixedly connected to a limiting plate 803.
[0030] The sliding rod 802 has evenly distributed threaded holes 804 on its outer side, and the hollow cylinder 801 has a second bolt 805 on its outer side. The second bolt 805 passes through the hollow cylinder 801 and is spirally connected to one of the threaded holes 804 on the outer side of the sliding rod 802.
[0031] The inner side of the limit plate 803 is arc-shaped.
[0032] If the cable inside the box is bent and not centered, it will not be in the center of the sealant and will generally be biased to one side of the sealant, which may affect subsequent use. The limiting component 8 can support the cable 1 and center it to ensure quality.
[0033] When limiting the cable 1, it can be connected to the threaded hole 804 inside the sliding rod 802 through the second bolt 805 to realize the position adjustment of the limiting plate 803. The limiting plate 803 contacts the outside of the cable 1. Multiple limiting plates 803 can support the cable 1 and center it to ensure that the solidified sealant protects the subsequent cable 1.
[0034] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A modular prefabricated cable junction box for power engineering, characterized in that: Includes cable (1) and two sets of boxes (2) set outside the cable (1). The boxes (2) distributed vertically are connected by bolts at the joint. Limiting frames (4) are fixedly connected to the outside of the boxes (2). Clamping rings (5) are set on the outside of the limiting frames (4). The clamping rings (5) distributed vertically are connected by the first bolt (7). The box (2) is also fixedly connected with evenly distributed limiting components (8).
2. A modular prefabricated cable jointing box for power engineering according to claim 1, characterized in that: Two sets of injection pipes (3) are installed on the top of the upper box (2). The injection pipes (3) are hollow and connected to the box (2) for injecting sealant.
3. A modular prefabricated cable jointing box for power engineering according to claim 1, characterized in that: Two sets of limiting frames (4) are provided on the outside of each box (2), and the center of the limiting frame (4) is recessed.
4. A modular prefabricated cable jointing box for power engineering according to claim 1, characterized in that: The upper box (2) has a striking part (6) fixedly connected to the upper limit frame (4) on the outside and the clamp ring (5) inside. The top of the striking part (6) is flat.
5. A modular prefabricated cable jointing box for power engineering according to claim 1, characterized in that: The limiting component (8) includes a hollow cylinder (801) fixedly connected to the inner wall of the box (2). The hollow cylinder (801) is slidably connected to a sliding rod (802), and the other end of the sliding rod (802) is fixedly connected to a limiting plate (803). The sliding rod (802) has evenly distributed threaded holes (804) on its outer side, and a second bolt (805) is provided on the outer side of the hollow cylinder (801). The second bolt (805) passes through the hollow cylinder (801) and is spirally connected to one of the threaded holes (804) on the outer side of the sliding rod (802).
6. A modular prefabricated cable jointing box for power engineering according to claim 5, characterized in that: The inner side of the limiting plate (803) is arc-shaped.