A power cable distribution box capable of cable butt joint
By introducing an air pump system and a specific structural design into the cable junction box, the problem of small animal intrusion during outdoor use is solved, achieving effective protection and heat dissipation, and ensuring the stable operation of cables and electrical appliances.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NENGJIAN GREEN HYDROGEN AMMONIA NEW ENERGY (SONGYUAN) CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-28
AI Technical Summary
Existing cable junction boxes lack protective features when used outdoors, failing to prevent small animals from entering and damaging internal cables and electrical appliances.
A power cable junction box was designed, employing an air pump system and a specific structural design, including components such as vents, folded tubes, metal mesh plugs, rubber retainers, and cone boxes, to achieve airflow circulation and prevent small animals from entering.
It effectively prevents small animals from entering, improves heat dissipation efficiency, ensures stable operation of cables and electrical appliances, and avoids damage.
Smart Images
Figure CN224570860U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cable junction box technology, specifically relating to a power cable junction box that can realize cable connection. Background Technology
[0002] Cable junction boxes are classified into two main categories based on their electrical configuration: one type contains no switching equipment and only accessories for processing and connecting cable ends. It has a relatively simple structure, small size, and single function, and can be called a standard junction box; the other type contains not only the accessories of a standard junction box but also one or more switching devices. It has a more complex structure, larger size, more connecting components, higher manufacturing difficulty, and higher cost, and can be called a high-end junction box.
[0003] During the use of power cable junction boxes, since junction boxes may be used in harsh environments such as outdoors, there is a possibility that rats or small animals may enter the junction box and damage the cables and electrical appliances inside. Existing junction boxes generally do not have outdoor protection and small animal protection functions. Based on this, we propose a power cable junction box that can realize cable connection. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a power cable junction box that can realize cable connection, which solves the problem that existing junction boxes generally do not have the functions of outdoor protection and preventing small animals from entering.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a power cable junction box capable of cable splicing, comprising a box body, several mounting rings fixedly installed on both sides of the box body, a canopy fixedly installed on the top of the box body, an air pump fixedly installed at the bottom of the inner cavity of the canopy, a folded tube fixedly installed inside the canopy, several ventilation holes opened inside the folded tube, metal mesh plugs fixedly installed inside both ends of the folded tube, two sets of mounting plates fixedly installed inside the box body, a cable clamping tube fixedly installed inside the box body, several branch pipes fixedly sleeved at the bottom of the inner cavity of the box body, a conical box fixedly installed at the bottom of the box body, and the conical box having... All internal components are equipped with movable rubber retaining rings. Several concave grooves are fixedly installed at the top of the inner cavity of the cone box. Rubber semi-rings two are fixedly installed inside the concave grooves. Rubber semi-rings one is movably installed inside the concave grooves. A shaft seat is fixedly installed on the outer side of rubber semi-rings one. A screw is movably sleeved on the inner side of the shaft seat. A base plate is fixedly installed at the bottom of the cone box. A vent pipe is fixedly installed at the top of the base plate. Several through holes are opened inside the vent pipe. A metal mesh cylinder is movably installed inside the vent pipe. A dust filter cylinder is movably installed at the top of the metal mesh cylinder. A door is movably installed on the front of the box. A sealing strip is fixedly installed on the inner side of the door.
[0006] Preferably, the input end of the air pump passes through the ceiling and the housing and extends into the interior of the housing.
[0007] By adopting the above technical solution, the advantage is that the airflow enters the inside of the folded tube through the vent hole and is discharged to the outside through the folded tube. The folded tube design prevents water from flowing back.
[0008] Preferably, the vent holes are arranged in a circumferential linear uniform pattern inside the folded tube.
[0009] By adopting the above technical solution, the advantage is that it facilitates the increase of airflow output efficiency and has good overall performance.
[0010] Preferably, the screw threaded connection passes through the cone box and extends to the outside of the cone box.
[0011] By adopting the above technical solution, the advantage is that the screw can be easily connected by a thread to push the shaft seat and the rubber half-ring into place, which facilitates structural stability and use.
[0012] Preferably, the number of branch pipes and rubber retaining rings is matched with the number of concave grooves, and the branch pipes and rubber retaining rings are symmetrically and evenly distributed inside the box and on both sides.
[0013] By adopting the above technical solution, the advantage is that it is easy to achieve a symmetrical distribution, and it is easy to distribute and install cables for both import and export, thereby increasing the sealing effect.
[0014] Preferably, the base plate has several small holes inside.
[0015] The advantage of adopting the above technical solution is that it is easy to use stably, and the airflow is introduced, making it convenient to use.
[0016] Preferably, the through holes are arranged in a circumferential linear uniform pattern inside the vent pipe, and the vent pipe passes through the cone box and connects to the interior of the box body.
[0017] By adopting the above technical solution, the advantages are that it facilitates the airflow through the metal mesh cylinder for filtration, makes it easy to use as a whole, and ensures stable performance.
[0018] Preferably, the folded tubes are distributed obliquely in an umbrella shape inside the ceiling.
[0019] By adopting the above technical solution, the advantage is that the two ends of the folded tube are inclined downwards, which facilitates the airflow and avoids water backflow.
[0020] Preferably, the outer facade of the cone box is arranged in an inverted triangular shape.
[0021] By adopting the above technical solution, the advantages are that the reverse-sloping facade reduces the attachment angle for small animals to climb, increases the difficulty of climbing, and can prevent small animals such as rats from entering the box and causing damage, making it easier to stabilize and protect the enclosure and easier to use.
[0022] Compared with the prior art, the beneficial effects of this utility model are: 1. With the installation ring in place, the user first secures the enclosure to the appropriate location using the installation ring. Then, the rubber retaining ring on one side is removed, and the cable is threaded through the inside of the retaining ring into the enclosure. Next, the cable is passed through the opposite sides of rubber half-ring one and rubber half-ring two, and enters the enclosure through the branch pipe. The top of the mounting plate is equipped with a taper switch and other necessary electrical components. Finally, the cable after tapping is led out from the branch pipe and rubber retaining ring on the other side. Once the cable length is fixed, it is secured with a cable clamp to prevent dragging damage. Then, the screw is rotated, and the screw rotates under the action of the threaded connection between the screw and the cone box, adjusting the length. Supported by the shaft seat, the screw drives rubber half-ring one to slide inside the concave groove, engaging with the fixed position of rubber half-ring two to clamp the cable. Finally, the rubber retaining ring is engaged in the corresponding position to seal the cable entry and exit points, improving the overall usability and facilitating sealing.
[0023] 2. The air pump is activated when the external environment overheats. The pump's input draws air from inside the chamber, which then enters the cone through the vents on the bottom plate and through the through-holes into the vent pipe. The metal mesh and dust filter inside the vent pipe filter out debris and dust before guiding the air into the chamber. The air pump then draws the air and heat out to the top, and under positive pressure, the air enters the folded pipe through the vents and is discharged to the outside. The folded pipe design prevents backflow of water and, together with the metal mesh plug, prevents small animals from climbing in backwards, increasing heat dissipation efficiency and protection. Overall, the system performs well.
[0024] 3. With the addition of rubber retaining rings and a cone box, the rubber retaining rings can be opened during actual use to insert the cable into the inside, with two large rings distributed on both sides of the smaller ring. This facilitates the clamping at the installation position of the cone box, enabling effective sealing. This overcomes the problem of traditional fire sealant easily peeling off. In addition, the reverse-sloping exterior of the cone box reduces the attachment angle for small animals to climb, increasing the difficulty of climbing. This prevents small animals such as rats from entering the box and causing damage, ensuring stable protection and ease of use. Attached Figure Description
[0025] Figure 1 This is a front-view three-dimensional structural diagram of the present invention; Figure 2 This is a rear-view three-dimensional appearance structure diagram of the present utility model; Figure 3 This is a three-dimensional view of the appearance structure of this utility model from below; Figure 4 This is a front sectional view of the present invention. Figure 5 This is a schematic diagram of the right-side cross-sectional structure of the present invention; Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle.
[0026] In the diagram: 1. Housing; 2. Mounting ring; 3. Top; 4. Door; 5. Screw; 6. Conical box; 7. Base plate; 8. Rubber retaining ring; 9. Air pump; 10. Bent pipe; 11. Vent hole; 12. Metal mesh plug; 13. Mounting plate; 14. Cable clamp; 15. Branch pipe; 16. Sealing strip; 17. Through hole; 18. Metal mesh cylinder; 19. Vent pipe; 20. Rubber half ring one; 21. Dust filter; 22. Concave groove; 23. Rubber half ring two; 24. Shaft seat. Detailed Implementation
[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] like Figures 1-5As shown, a power cable junction box capable of cable splicing includes a box body 1. Several mounting rings 2 are fixedly installed on both sides of the box body 1. A canopy 3 is fixedly installed on the top of the box body 1. An air pump 9 is fixedly installed at the bottom of the inner cavity of the canopy 3. A folding pipe 10 is fixedly installed inside the canopy 3. Several ventilation holes 11 are opened inside the folding pipe 10. Metal mesh plugs 12 are fixedly installed inside both ends of the folding pipe 10. Two sets of mounting plates 13 are fixedly installed inside the box body 1. A cable clamping tube 14 is fixedly installed inside the box body 1. Several branch pipes 15 are fixedly sleeved at the bottom of the inner cavity of the box body 1. A conical box 6 is fixedly installed at the bottom of the box body 1. Rubber retaining rings 8 are movably installed inside both sides of the conical box 6. The top of the inner cavity of the cone box 6 is fixedly installed with several concave grooves 22. A rubber semi-ring 23 is fixedly installed inside the concave groove 22. A rubber semi-ring 20 is movably installed inside the concave groove 22. A bearing seat 24 is fixedly installed on the outer side of the rubber semi-ring 20. A screw 5 is movably sleeved on the inner side of the bearing seat 24. A base plate 7 is fixedly installed at the bottom of the cone box 6. A vent pipe 19 is fixedly installed on the top of the base plate 7. Several through holes 17 are opened inside the vent pipe 19. A metal mesh cylinder 18 is movably installed inside the vent pipe 19. A dust filter cylinder 21 is movably installed on the top of the metal mesh cylinder 18. A box door 4 is movably installed on the front of the box body 1. A sealing strip 16 is fixedly installed on the inner side of the box door 4.
[0029] The working principle of the above technical solution is as follows: In use, the user first secures the enclosure 1 to the appropriate location using the mounting ring 2. Then, the user removes one side of the rubber retaining ring 8 and inserts the cable through the inside of the retaining ring 8 into the enclosure 1. Next, the cable passes through the opposite sides of the rubber half-ring 20 and rubber half-ring 23, and enters the enclosure 1 via the branch pipe 15. The top of the mounting plate 13 is equipped with a tapping device and other necessary electrical components. Finally, the cable after tapping is led out from the branch pipe 15 and the rubber retaining ring 8 on the other side. Once the cable length is fixed, it is secured using the cable clamping tube 14. To prevent dragging damage, screw 5 is then rotated. Screw 5 rotates under the action of the threaded connection between it and cone box 6, and its length is adjusted. Under the support of shaft seat 24, screw 5 drives rubber half ring 1 20 to slide inside concave groove 22. With the fixed position of rubber half ring 23, the cable is snapped in place. Finally, rubber retainer 8 is snapped into the corresponding position to seal the cable entry and exit points. This changes the situation where traditional sealing fire clay is easy to peel off. In addition, with the reverse tilted exterior of cone box 6, it can prevent small animals such as rats from entering the box 1 and causing damage, which is convenient for stable protection and easy to use.
[0030] In another implementation scheme, such as Figure 3 As shown, the input end of the air pump 9 passes through the ceiling 3 and the housing 1 and extends into the interior of the housing 1.
[0031] When the external environment overheats, the air pump 9 starts, and the input end of the air pump 9 draws out the airflow inside the housing 1. At this time, the airflow enters the cone box 6 through the air hole of the bottom plate 7, and enters the vent pipe 19 through the through hole 17. After the metal mesh cylinder 18 and dust filter cylinder 21 inside the vent pipe 19 filter the debris and dust, the airflow is guided into the housing 1. The air pump 9 draws the airflow and heat into the roof 3. Under the action of positive pressure, the airflow enters the folded pipe 10 through the air hole 11, and is discharged to the outside through the folded pipe 10. The folded pipe 10 is designed to prevent water backflow, and together with the metal mesh plug 12, it prevents small animals from climbing in backwards, which increases the heat dissipation efficiency and protection, and the overall use effect is good.
[0032] In another implementation scheme, such as Figure 3 As shown, the vent holes 11 are arranged in a circumferential linear uniform pattern inside the folded tube 10.
[0033] The vent holes 11 are distributed inside the folded tube 10, which facilitates airflow and increases the efficiency of airflow output, resulting in good overall performance.
[0034] In another implementation scheme, such as Figures 1-4 As shown, the screw 5 is threaded through the cone box 6 and extends to the outside of the cone box 6.
[0035] The screw 5 facilitates the threaded connection to push the shaft seat 24 and the rubber half-ring 20 into place, which is conducive to structural stability and use.
[0036] In another implementation scheme, such as Figure 3 As shown, the number of branch pipes 15 and rubber retaining rings 8 is matched with the number of concave grooves 22. The branch pipes 15 and rubber retaining rings 8 are symmetrically and evenly distributed inside the box 1 and on both sides.
[0037] The number of branch pipes 15, rubber clamps 8, and concave grooves 22 are matched to facilitate symmetrical distribution, making it easy to distribute and install cables for both import and export, thus increasing the sealing effect.
[0038] In another implementation scheme, such as Figure 2 As shown, the base plate 7 has several small holes inside.
[0039] The small holes inside the base plate 7 facilitate airflow into the cone box 6, enabling stable use and making it easy to guide airflow.
[0040] In another implementation scheme, such as Figure 3 As shown, the through holes 17 are evenly distributed in a circular linear pattern inside the vent pipe 19, and the vent pipe 19 passes through the cone box 6 and connects to the inside of the box body 1.
[0041] The through hole 17 facilitates the introduction of airflow into the vent tube 19, facilitates the airflow to pass through the filter of the metal mesh cylinder 18, facilitates overall use, and facilitates stable performance.
[0042] In another implementation scheme, such as Figure 3 As shown, the folded tubes 10 are distributed in an umbrella-like, inclined manner inside the ceiling 3.
[0043] The two ends of the bend 10 are inclined downwards to facilitate the airflow and prevent water backflow.
[0044] In another implementation scheme, such as Figure 3 As shown, the exterior of the cone box 6 is arranged in an inverted triangular shape.
[0045] In actual use, the rubber retainer 8 can be opened to insert the cable into the inside, with two large rings distributed on both sides of the small ring, making it easy to snap into the installation position of the cone box 6 for effective sealing. This changes the situation where traditional sealing putty is easy to peel off. In addition, in combination with the reverse tilted exterior of the cone box 6, it reduces the attachment angle for small animals to climb, increases the difficulty of climbing, and can prevent small animals such as rats from entering the box 1 and causing damage. It is convenient for stable protection and easy to use.
[0046] The working principle and usage process of this utility model are as follows: In use, the user first secures the housing 1 to a suitable location using the mounting ring 2. Then, the user removes one side of the rubber retaining ring 8 and inserts the cable through the inside of the rubber retaining ring 8 into the housing 1. Next, the cable passes through the opposite sides of the rubber half-ring 20 and the rubber half-ring 23, and enters the housing 1 through the branch pipe 15. Simultaneously, the top of the mounting plate 13 is equipped with a tapping device and other necessary electrical components. Finally, the cable after tapping is exited from the branch pipe 15 and the rubber retaining ring 8 on the other side. Once the cable length is fixed, the cable is secured using the cable clamp 14 to prevent dragging and damage. Then, the screw 5 is rotated; the screw 5 rotates due to the threaded connection with the cone box 6, adjusting the length. Supported by the shaft seat 24, the screw 5 drives the rubber half-ring 20 to slide inside the concave groove 22, securing the cable in place with the fixed position of the rubber half-ring 23. Finally, the rubber retaining ring 8 is engaged in the corresponding position, sealing the cable's entry and exit points, improving overall performance and facilitating sealing. When overheating occurs in external environments, the air pump 9 is activated. When the air pump 9 is activated, it draws air out of the housing 1. The air then enters the cone 6 through the air holes in the bottom plate 7 and through the through hole 17 into the vent pipe 19. After the metal mesh cylinder 18 and dust filter cylinder 21 inside the vent pipe 19 filter out impurities and dust, the air is guided into the housing 1. The air pump 9 draws the air and heat out into the ceiling 3. Under positive pressure, the air enters the folding pipe 10 through the air hole 11 and is discharged to the outside through the folding pipe 10. The folding pipe 10 is designed to prevent water backflow, and works in conjunction with the metal mesh plug 12. To prevent small animals from climbing in the opposite direction, this design increases heat dissipation efficiency and protection, resulting in good overall performance. The rubber retainer 8 can be opened during actual use to insert the cable into the inner side, with two large rings distributed on either side of the smaller ring. This facilitates locking at the installation position of the cone box 6, enabling effective sealing. This overcomes the problem of traditional sealing putty easily peeling off. Combined with the reverse-sloping exterior of the cone box 6, it reduces the attachment angle for small animals to climb, increasing the difficulty of climbing and preventing small animals such as rats from entering and damaging the interior of the box 1. This design ensures stable protection and ease of use.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A power cable junction box capable of cable splicing, comprising a box body (1), characterized in that: Several mounting rings (2) are fixedly installed on both sides of the box (1). A canopy (3) is fixedly installed on the top of the box (1). An air pump (9) is fixedly installed at the bottom of the inner cavity of the canopy (3). A folded tube (10) is fixedly installed inside the canopy (3). Several ventilation holes (11) are opened inside the folded tube (10). Metal mesh plugs (12) are fixedly installed inside both ends of the folded tube (10). Two sets of mounting plates (13) are fixedly installed inside the box (1). A wire clamping tube (14) is fixedly installed inside the box (1). Several branch pipes (15) are fixedly sleeved at the bottom of the inner cavity of the box (1). A cone box (6) is fixedly installed at the bottom of the box (1). Rubber retaining rings (8) are movably installed inside both sides of the cone box (6). A cone box (6) is fixedly installed at the top of the inner cavity of the cone box (6). There are several concave grooves (22), a rubber half-ring two (23) is fixedly installed inside the concave groove (22), a rubber half-ring one (20) is movably installed inside the concave groove (22), a shaft seat (24) is fixedly installed on the outside of the rubber half-ring one (20), a screw (5) is movably sleeved on the inside of the shaft seat (24), a base plate (7) is fixedly installed at the bottom of the cone box (6), a vent pipe (19) is fixedly installed at the top of the base plate (7), several through holes (17) are opened inside the vent pipe (19), a metal mesh cylinder (18) is movably installed inside the vent pipe (19), a dust filter cylinder (21) is movably installed at the top of the metal mesh cylinder (18), a box door (4) is movably installed on the front of the box body (1), and a sealing strip (16) is fixedly installed on the inside of the box door (4).
2. A power cable junction box capable of cable splicing according to claim 1, characterized in that: The input end of the air pump (9) passes through the ceiling (3) and the housing (1) and extends into the interior of the housing (1).
3. A power cable junction box capable of cable splicing according to claim 1, characterized in that: The vent holes (11) are arranged in a uniform circular linear pattern inside the folded tube (10).
4. A power cable junction box capable of cable splicing according to claim 1, characterized in that: The screw (5) is threaded through the cone box (6) and extends to the outside of the cone box (6).
5. A power cable junction box capable of cable splicing according to claim 1, characterized in that: The number of branch pipes (15) and rubber retainers (8) is matched with the number of concave grooves (22). The branch pipes (15) and rubber retainers (8) are symmetrically and evenly distributed inside and on both sides of the box body (1).
6. A power cable junction box capable of cable splicing according to claim 1, characterized in that: The base plate (7) has several small holes inside.
7. A power cable junction box capable of cable splicing according to claim 1, characterized in that: The through holes (17) are arranged in a uniform circular linear pattern inside the vent pipe (19), which penetrates the cone box (6) and connects to the interior of the box body (1).
8. A power cable junction box capable of cable splicing according to claim 1, characterized in that: The folded tubes (10) are distributed obliquely in an umbrella shape inside the canopy (3).
9. A power cable junction box capable of cable splicing according to claim 1, characterized in that: The outer facade of the cone box (6) is sloping in an inverted triangle shape.