A cable branch box structure suitable for highland cold regions
By employing a multi-component collaborative locking structure and a circulating airflow system, the protection and insulation issues of cable branch boxes in high-altitude and frigid regions have been resolved, achieving stable sealing and temperature uniformity of the equipment, and improving the reliability and safety of the cable branch boxes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ANHUI QIGUANG TECH CO LTD
- Filing Date
- 2026-03-20
- Publication Date
- 2026-05-29
AI Technical Summary
Cable distribution boxes in high-altitude and frigid regions face challenges in terms of protection and insulation performance under ultraviolet radiation and extreme temperatures, leading to accelerated equipment aging and uneven temperature distribution, which in turn affects the stable operation of the equipment.
The cabinet employs a multi-component locking structure, combined with precise guidance from guide grooves and cylinders, along with insulation components and a circulating airflow system, to ensure stable sealing and temperature uniformity. An automatic vent valve regulates the internal pressure to prevent external interference.
It improves the reliability and safety of cable distribution boxes in harsh environments, reduces operational risks and energy consumption, and extends the service life of the equipment.
Smart Images
Figure CN122118600A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cable branch box technology, specifically a cable branch box structure suitable for high-altitude and frigid regions. Background Technology
[0002] In high-altitude and frigid regions, the unique geographical and climatic environment presents numerous challenges to the normal operation of cable distribution boxes. On one hand, the extremely strong ultraviolet radiation in these areas causes the protective paint on the cable distribution box casing to age and peel off rapidly over time, affecting not only the appearance of the box but also reducing its ability to protect the internal equipment and accelerating the aging process. On the other hand, the extremely low temperatures and significant diurnal temperature variations in high-altitude areas, coupled with the pronounced thermal expansion and contraction of gases, significantly accelerate the aging of the insulation materials used in traditional cable distribution boxes, drastically reducing their insulation performance. Furthermore, due to unreasonable insulation layer design, replacement is difficult, leading to severe heat loss within the box and an inability to provide a stable and suitable operating temperature environment for cables and other equipment, severely impacting their lifespan. In addition, most existing cable distribution boxes rely solely on simple sealing and heating devices for insulation; however, the varying heat dissipation of different components within the box results in frequent instances of excessively high or low temperatures, significantly affecting the stable operation of components. Therefore, developing a cable distribution box structure suitable for high-altitude and frigid regions, offering effective protection, good insulation, and the ability to maintain a uniform internal temperature, is urgently needed. Summary of the Invention
[0003] The purpose of this invention is to provide a cable branch box structure suitable for high-altitude and frigid regions, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a cable branch box structure suitable for high-altitude and frigid regions, comprising a cabinet with a hinged door. Both the cabinet and the door have mounting grooves. Several locking components are installed inside the mounting grooves. Each locking component includes a fixing block, two L-shaped rods, and two movable blocks. The fixing block is fixed inside the mounting groove, and a locking slot is formed inside the fixing block. Two partitions are fixed inside the locking slot, dividing the locking slot into a spring-loaded chamber and a locking chamber. Sliding grooves are formed on the partitions, communicating with both the spring-loaded chamber and the locking chamber. The rebound chamber has a fixed limit block inside, and two movable blocks are symmetrical to each other. The movable blocks are L-shaped and are slidably mounted on the sliding groove and the limit block. The end of the movable blocks is equipped with a compression spring. The L-shaped round rods are rotatably mounted inside the rebound chamber. The movable blocks are provided with a first movable groove and a second movable groove above them. The height of the second movable groove is lower than that of the first movable groove. A triangular stop block is fixed on the second movable groove, and an inclined pad block is fixed above the second movable groove. The inclined pad block connects the first movable groove and the second movable groove. An insulation component is provided on the mounting groove, and a circulation component is provided inside the cabinet.
[0005] The locking assembly also includes a first movable block, two L-shaped square rods and two L-shaped baffles. The two L-shaped square rods are hinged to the second movable block. An inclined stop is fixed above the second movable block. The two L-shaped baffles are symmetrical to each other and are fixed inside the locking chamber. A guide groove is provided on the partition. A cylinder is fixed to the side of the L-shaped square rod and slides inside the guide groove.
[0006] Using the above structure, the inclined stop block is used to prevent the L-shaped square rod from rotating excessively, avoiding it from disengaging from the guide groove and ensuring the precise movement trajectory of the component. After the initial locking action is achieved by pressing the second moving block, when pressed further, the second moving block drives the L-shaped square rod hinged to it to move. The cylinder on the side of the L-shaped square rod slides in the guide groove, guiding the L-shaped square rod to move along a specific trajectory. As the pressing goes deeper, the L-shaped square rod will interact with the L-shaped baffle fixed inside the locking chamber. When it reaches the appropriate position, the L-shaped square rod is blocked by the L-shaped baffle, achieving a more stable locking. When pressed again, the second moving block moves in the opposite direction. The L-shaped square rod moves in the opposite direction, and the cylinder slides in the opposite direction within the guide groove, causing the L-shaped square rod to disengage from the L-shaped baffle and unlock. In high-altitude and frigid regions, where the environment is harsh and cable distribution boxes may be frequently impacted by strong winds, vibrations, and other external forces, this structure, by further pressing the moving block two, causes the L-shaped square rod, guided by the guide groove and the cylinder, to interact with the L-shaped baffles symmetrically fixed in the locking chamber, achieving blocking and locking. This multi-component coordinated locking method, compared to a single locking structure, greatly increases the locking force and effectively prevents the cabinet and opening / closing door from accidentally opening in harsh environments. The opening mechanism ensures that internal cables and other equipment are always in a safe and enclosed state, greatly improving the reliability and safety of the cable branch box in complex environments. The guide grooves on the partition and the cylindrical sliding mechanism fixed to the side of the L-shaped square rod provide precise guidance for the movement of the L-shaped square rod. During pressing and unlocking, the cylinder slides along the guide groove, allowing the L-shaped square rod to move strictly along a predetermined trajectory, ensuring accurate interaction and separation between the L-shaped square rod and the L-shaped baffle. Even in low-temperature environments where materials may shrink and change size, this guiding structure still ensures the safety of all components. The precise movement of the components ensures the normal operation of locking and unlocking functions, improving the adaptability and stability of the entire locking assembly. This structure enables the functions of pressing to lock and pressing again to unlock. The operation is simple and intuitive. Operators only need to press the second moving block to easily lock and unlock the cabinet and the door without complicated steps or the use of additional tools. In high-altitude and frigid areas, operators may have difficulty moving due to wearing heavy protective gear. This simple operation method can improve work efficiency, reduce operation time, and reduce the risk of operator exposure in harsh environments.
[0007] A pressing plate is fixed to the end of the movable block one, and a locking block is fixed to both sides of the movable block one. Two spring telescopic rods are fixed to the pressing plate, and a stop plate is fixed to the two spring telescopic rods. The stop plate is slidably set on the movable block one.
[0008] With the above structure, when pressure is applied to the pressing plate, the pressing plate drives the moving block one to move, simultaneously compressing the spring telescopic rod. The locking blocks on both sides of the moving block one provide certain limiting and guiding functions, ensuring the stable movement of the moving block one. The compression and extension of the spring telescopic rod provides a certain buffering effect, making the operation smoother during pressing. When the locking position is reached, the elasticity of the spring telescopic rod and the cooperation of various components achieve the locking function. When pressed again, the spring telescopic rod is further compressed and then releases elastic potential energy, pushing the moving block one to move in the opposite direction, thus unlocking. The stop plate slides on the moving block one, which can adapt to different force conditions and ensure the stability of the entire structure. The two spring telescopic rods fixed on the pressing plate are compressed when the operator applies pressure to the pressing plate. This compression process provides a buffering effect, reducing the impact force when the operator presses, making the operation more comfortable. In high-altitude and cold regions, the operator's hands may become stiff due to the low temperature; this comfortable operating structure can reduce hand fatigue. To improve operational accuracy and efficiency and facilitate frequent locking and unlocking operations, the fixed locking blocks on both sides of the moving block effectively limit and guide its movement, preventing deviation or wobbling and ensuring stable movement along the predetermined direction. Simultaneously, the compression and extension of the spring telescopic rod further assist in the smooth movement of the moving block, making the entire locking and unlocking process more reliable, reducing the probability of malfunctions due to unstable movement, and extending the service life of the locking assembly. The abutment plate is slidably mounted on the moving block, allowing the entire structure to adapt to forces from different directions. In practical use, the cable branch box may be subjected to external forces from different directions. The abutment plate can slide and adjust on the moving block according to the direction of the force, ensuring uniform force distribution among components and maintaining the stability of the entire structure. This greatly improves the adaptability of the locking assembly to complex stress environments, ensuring long-term stable operation in high-altitude and frigid regions.
[0009] The insulation component includes a panel and an insulation board. The panel has several snap-fit holes on its upper part and several mounting boxes fixed on its lower part. The mounting boxes are connected to the snap-fit holes at corresponding positions. The mounting boxes have mounting holes inside and a snap plate is provided on the mounting box. The snap plate has a concave groove. The baffle plate, pressing plate and spring telescopic rod are all located inside the mounting box. The insulation board has several reserved holes on its upper part and is located inside the mounting groove.
[0010] Using the above structure, the concave groove facilitates the operator's installation of the snap-on plate. In the overall structure, the snap-on hole provides positioning and initial connection points for the snap-on plate installation. The mounting box is connected to the snap-on hole, allowing the snap-on plate to be installed onto the mounting box. The mounting hole can be used for further fixing related components or for wiring to pass through. The concave groove on the snap-on plate may interact with other components during locking and unlocking operations, achieving the function of pressing to lock and pressing again to unlock. The stop plate, pressing plate, and spring telescopic rod are located inside the mounting box, together forming the core structure for pressing to lock and unlock. When the pressing plate is subjected to force, it drives the movement of other components, and the spring telescopic rod provides buffering and restoring elasticity. The reserved hole in the insulation plate may be for convenient installation or cooperation with other components. Simultaneously, the insulation plate, located in the mounting groove, plays a role in heat insulation. The panel effectively prevents heat exchange between the cabinet interior and the external environment. In high-altitude and frigid regions, it reduces heat loss and maintains a relatively stable internal temperature, providing a suitable working environment for cables and other equipment, and extending their service life. The snap-fit holes and mounting boxes on the panel make the installation of the entire insulation component more convenient and quick. Through reasonable structural design, the relevant components can be easily disassembled and installed when maintenance or replacement is required, reducing maintenance costs and time. The locking components, such as the baffle plate, pressing plate, and spring telescopic rod, are placed inside the mounting box, which not only protects them from external factors (such as dust and collisions) that may interfere with their normal operation, but also makes the entire locking structure more compact, ensuring the stability and reliability of the press-to-lock and press-to-unlock functions.
[0011] The circulation assembly includes two uprights, which are symmetrical to each other and fixed inside the cabinet. A fixing plate 1 and a fixing plate 2 are fixed between the two uprights. Several ventilation holes 1 are opened above the fixing plate 1, and two circulating fans 1 are fixed above the fixing plate 1. Several ventilation holes 2 are opened above the fixing plate 2, and two circulating fans 2 are fixed above the fixing plate 2. The two circulating fans 1 and the two circulating fans 2 are staggered. A heater is fixed between the two uprights and is located below the fixing plate 2. Several mounting brackets are fixed between the two uprights.
[0012] Using the above structure, two symmetrical columns serve as the supporting structure for the entire circulation assembly, fixed inside the cabinet to provide a stable mounting base for other components. Circulation fans one and two are respectively installed on fixed plate one and fixed plate two. Ventilation holes one and two provide channels for airflow. The staggered arrangement of circulation fans one and two creates a more complex and uniform airflow circulation path inside the cabinet. The heater is located below fixed plate two. When heating is required, the heater generates heat, which is evenly distributed to all corners inside the cabinet by the circulation fans. The mounting bracket can be used to install other related equipment or components. The staggered arrangement of circulation fans one and two and the design of the ventilation holes ensure that the airflow inside the cabinet circulates fully. This ensures optimal airflow during heater operation. During operation, heat can be evenly diffused throughout the cabinet with the airflow, avoiding localized overheating or underheating, providing a stable temperature environment for cables and other equipment, ensuring normal operation. Through a reasonable airflow circulation design, heat can be transferred and distributed more effectively within the cabinet, reducing heat waste. In high-altitude and frigid regions where energy acquisition may be relatively difficult, this efficient energy utilization method can reduce energy consumption and save operating costs. The mounting rack allows the circulation components to flexibly install other equipment or components according to actual needs, improving the utilization rate of the entire cabinet's internal space and the adaptability of the equipment. Whether adding monitoring equipment or other auxiliary devices, they can be easily installed on the mounting rack to meet different usage scenarios and functional requirements.
[0013] The cabinet is fixed with a support frame at the bottom, an automatic ventilation valve is installed on the support frame, and an air intake grille is opened on the support frame. A top plate is fixed on the top of the cabinet.
[0014] Using the above structure, the support frame provides stable support for the cabinet, allowing it to be placed securely on the ground. The automatic vent valve automatically adjusts its opening and closing according to the internal pressure of the cabinet. When the internal pressure is too high, the automatic vent valve opens to release some gas, maintaining pressure balance within the cabinet; when the internal pressure is normal, the automatic vent valve closes to prevent excessive entry of outside air. The air intake grille allows outside air to enter the cabinet when needed, working in conjunction with the circulation component to achieve airflow and temperature regulation. The top plate protects the upper part of the cabinet, preventing dust, rainwater, etc., from falling into the cabinet. The stable support of the support frame ensures that the cabinet remains stable under various terrain and environmental conditions, and will not be affected by external factors (such as... The automatic venting valve protects the equipment and components inside the cabinet from tipping or shaking due to wind, uneven ground, etc., ensuring their normal operation. It automatically regulates the internal pressure, preventing damage to the equipment and cabinet structure caused by excessively high or low pressure. In high-altitude areas with significant pressure variations, the automatic venting valve responds promptly to these changes, maintaining a stable internal environment and extending equipment lifespan. The design of the air intake grille and top plate ensures airflow within the cabinet, facilitating temperature regulation and equipment heat dissipation, while effectively preventing dust, rainwater, and other impurities from entering. This provides excellent protection for the equipment inside and enhances the reliability and stability of the entire cable distribution box in harsh environments.
[0015] Compared with the prior art, the beneficial effects of the present invention are: This cable branch box structure, suitable for high-altitude and frigid regions, significantly enhances locking force through a multi-component coordinated locking method. It effectively resists external impacts such as strong winds and vibrations, ensuring the safe closure of the cabinet and doors, and improving reliability and safety in complex environments. The guide groove and round rod work together to ensure precise movement of components at low temperatures, stabilizing the locking and unlocking functions. Simple operation allows for easy use by personnel wearing heavy equipment, improving efficiency and reducing risks. The insulation plate, combined with quick-release components, facilitates easy replacement of insulation materials, maintaining good insulation performance and reducing heat loss within the cabinet. Simultaneously, the circulating airflow component ensures air circulation within the cabinet, maintaining uniform temperature and preventing localized temperature differences from affecting stable equipment operation. It also reduces energy consumption and saves costs. Furthermore, the support frame provides stable support, the automatic vent valve responds promptly to air pressure changes, and the air intake grille and top plate ensure airflow while providing dust and water protection, comprehensively improving the reliability and stability of the cable branch box in harsh environments. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the upper three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the lower three-dimensional structure of the present invention; Figure 3 This is a partially exploded structural diagram of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A; Figure 5 This is a top view of the locking assembly in this invention. Figure 6 This is a schematic diagram of the cross-sectional structure of the locking assembly in this invention; Figure 7 This is a schematic diagram of the longitudinal cross-sectional structure of the locking component in this invention; Figure 8 for Figure 6 Enlarged structural diagram at point B; Figure 9 This is a schematic diagram of the upper internal three-dimensional structure of the present invention; Figure 10 This is a schematic diagram of the lower internal three-dimensional structure of the present invention.
[0017] In the diagram: 1. Buckle plate; 2. Panel; 3. Support frame; 4. Cabinet body; 5. Top plate; 6. Fastening hole; 7. Opening door; 8. Reserved hole; 9. Insulation board; 10. Mounting hole; 11. Mounting box; 12. Recessed groove; 13. Heater; 14. Baffle plate; 15. Pressing plate; 16. Spring telescopic rod; 17. Moving block one; 18. Fixing block; 19. Locking block; 20. Moving groove one; 21. Moving groove two; 22. Cylinder; 23. Compression spring; 24. Limiting block; 25. Angled stop block; 26. L-shaped square rod; 27. Triangular stop block; 28. L-shaped round rod; 29. Moving block two; 30. Sliding groove; 31. Guide groove; 32. Partition plate; 33. Angled pad block; 34. Fixing plate one; 35. Circulating fan one; 36. Ventilation hole one; 37. Mounting bracket; 38. Column; 39. Circulating fan two; 40. Fixing plate two; 41. Ventilation hole two; 42. L-shaped baffle. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] like Figures 1-10As shown, the present invention provides a technical solution: a cable branch box structure suitable for high-altitude and frigid regions, including a cabinet 4, with a hinged door 7 on the cabinet 4. Both the cabinet 4 and the door 7 have mounting grooves. Several locking components are installed inside the mounting grooves. Each locking component includes a fixing block 18, two L-shaped rods 28, and two moving blocks 29. The fixing block 18 is fixed inside the mounting groove, and a locking groove is formed inside the fixing block 18. Two partitions 32 are fixed inside the locking groove, dividing it into a spring-loaded chamber and a locking chamber. Sliding grooves 30 are formed on the partitions 32, communicating with both the spring-loaded chamber and the locking chamber. A limit block is fixed inside the spring-loaded chamber. 24. Two movable blocks 29 are symmetrical to each other and are L-shaped. Movable blocks 29 are slidably mounted on the sliding groove 30 and on the limiting block 24. A compression spring 23 is provided at the end of movable blocks 29. The L-shaped round rods 28 are rotatably mounted inside the return chamber. Movable groove 1 20 and movable groove 21 are provided above movable blocks 29. The height of movable groove 21 is lower than that of movable groove 1 20. A triangular stop block 27 is fixed on movable groove 21. An inclined pad block 33 is fixed above movable groove 21. The inclined pad block 33 connects movable groove 1 20 and movable groove 21. A heat preservation component is provided on the mounting groove. A circulation component is provided inside the cabinet 4.
[0020] The locking assembly also includes a first movable block 17, two L-shaped square rods 26, and two L-shaped baffles 42. Both L-shaped square rods 26 are hinged to a second movable block 29. A slanted stop 25 is fixed above the second movable block 29. The two L-shaped baffles 42 are symmetrical and fixed inside the locking chamber. A guide groove 31 is provided on the partition 32. A cylinder 22 is fixed to the side of each L-shaped square rod 26 and slides inside the guide groove 31. The slanted stop 25 prevents the L-shaped square rod 26 from rotating excessively, avoiding it from disengaging from the guide groove 31 and ensuring accurate component movement. After pressing the second movable block 29 to achieve the initial locking action... When pressed further, the second movable block 29 drives the L-shaped square rod 26 hinged to it to move. The cylinder 22 on the side of the L-shaped square rod 26 slides in the guide groove 31, guiding the L-shaped square rod 26 to move along a specific trajectory. As the pressing goes deeper, the L-shaped square rod 26 will interact with the L-shaped baffle 42 fixed inside the locking chamber. When it reaches the appropriate position, the L-shaped square rod 26 is blocked by the L-shaped baffle 42, achieving a more stable locking. When pressed again, the second movable block 29 moves in the opposite direction, driving the L-shaped square rod 26 to move in the opposite direction. The cylinder 22 slides in the opposite direction in the guide groove 31, causing the L-shaped square rod 26 to disengage from the blocking state of the L-shaped baffle 42, thus unlocking.In high-altitude and frigid regions with harsh environments, cable distribution boxes may be frequently impacted by external forces such as strong winds and vibrations. In this structure, by further pressing the moving block 29, the L-shaped square rod 26, guided by the guide groove 31 and the cylinder 22, interacts with the L-shaped baffle 42 symmetrically fixed in the locking chamber to achieve blocking and locking. This multi-component coordinated locking method greatly increases the locking force compared to a single locking structure, effectively preventing the cabinet 4 and the opening and closing door 7 from accidentally opening in harsh environments, ensuring that the internal cables and other equipment are always in a safe and closed state, and greatly improving the reliability and safety of the cable distribution box in complex environments. The guide groove 31 opened on the partition 32 and the cylinder 22 fixed on the side of the L-shaped square rod 26 are slidably set therein, providing precise guidance for the movement of the L-shaped square rod 26. During the pressing and unlocking process, the cylinder 22 slides along the guide groove 31. The movement of the L-shaped square rod 26 ensures that it moves strictly along a predetermined trajectory, guaranteeing accurate interaction and separation between the L-shaped square rod 26 and the L-shaped baffle 42. Even in low-temperature environments where materials may shrink due to dimensional changes, this guiding structure still ensures the precision of the movement of each component, thereby guaranteeing the normal operation of locking and unlocking functions and improving the adaptability and stability of the entire locking assembly. This structure enables the functions of pressing to lock and pressing again to unlock. The operation is simple and intuitive; the operator only needs to press the moving block 29, without complicated steps or the use of additional tools, to easily lock and unlock the cabinet 4 and the opening / closing door 7. In high-altitude and frigid regions, operators may experience difficulty moving due to wearing heavy protective gear; this simple operation method improves work efficiency, reduces operation time, and lowers the risk of operator exposure in harsh environments.
[0021] A pressing plate 15 is fixed to the end of the movable block 17, and locking blocks 19 are fixed to both sides of the movable block 17. Two spring telescopic rods 16 are fixed to the pressing plate 15, and a stop plate 14 is fixed to the two spring telescopic rods 16. The stop plate 14 is slidably disposed on the movable block 17. When pressure is applied to the pressing plate 15, the pressing plate 15 drives the movable block 17 to move, and at the same time compresses the spring telescopic rods 16. The locking blocks 19 on both sides of the movable block 17 play a certain limiting and guiding role, ensuring the stable movement of the movable block 17. The compression and extension of the spring telescopic rods 16 can provide a certain buffering effect, making the operation more stable during the pressing process. More stable, when the locking position is reached, the elastic force of the spring telescopic rod 16 and the cooperation of various components achieve the locking function. When pressed again, the spring telescopic rod 16 is further compressed and then the elastic potential energy is released, pushing the moving block 17 to move in the opposite direction to achieve unlocking. The stop plate 14 slides on the moving block 17, which can adapt to different force conditions and ensure the stability of the entire structure. The two spring telescopic rods 16 fixed on the pressing plate 15 are compressed when the operator applies pressure to the pressing plate 15. This compression process can play a buffering role, reducing the impact force when the operator presses, making the operation more stable. For added comfort, in frigid high-altitude regions where operators' hands may become stiff due to the cold, this comfortable operating structure reduces hand fatigue, improves operational accuracy and efficiency, and facilitates frequent locking and unlocking operations. The locking blocks 19 fixed on both sides of the moving block 17 effectively limit and guide its movement, preventing deviation or wobbling and ensuring stable movement along the predetermined direction. Simultaneously, the compression and extension of the spring telescopic rod 16 further assist in the smooth movement of the moving block 17, making the entire locking and unlocking process more comfortable. The locking process is more reliable, reducing the probability of failures caused by unstable movement and improving the service life of the locking components. The baffle plate 14 is slidably mounted on the moving block 17. This design allows the entire structure to adapt to force conditions in different directions. In actual use, the cable branch box may be subjected to external forces from different directions. The baffle plate 14 can slide and adjust on the moving block 17 according to the direction of the force to ensure uniform force distribution among the components, thereby maintaining the stability of the entire structure. This greatly improves the adaptability of the locking components in complex stress environments and ensures that they can work stably for a long time in high-altitude and frigid regions.
[0022] The insulation component includes a panel 2 and an insulation board 9. The panel 2 has several snap-fit holes 6 on its upper surface, and several mounting boxes 11 are fixed to the lower surface of the panel 2. Each mounting box 11 communicates with the corresponding snap-fit holes 6. The mounting box 11 has mounting holes 10 inside, and a snap plate 1 is installed on it. The snap plate 1 has a recessed groove 12. A baffle plate 14, a pressing plate 15, and a spring telescopic rod 16 are all located inside the mounting box 11. The insulation board 9 has several pre-drilled holes 8 on its upper surface, and is located inside the mounting groove. The recessed groove 12 facilitates opening and fastening by the operator. In the overall structure, the snap-fit hole 6 provides a positioning and initial connection point for the installation of the snap plate 1. The mounting box 11 is connected to the snap-fit hole 6, allowing the snap plate 1 to be installed onto the mounting box 11. The mounting hole 10 can be used to further fix related components or for wiring to pass through. The concave groove 12 on the snap plate 1 may interact with other components during locking and unlocking operations, realizing the function of pressing to lock and pressing again to unlock. The stop plate 14, the pressing plate 15, and the spring telescopic rod 16 are located inside the mounting box 11, and together they constitute the core of pressing to lock and unlock. The core structure, when the pressing plate 15 is under force, drives the movement of other components. The spring telescopic rod 16 provides buffering and restoring elasticity. The reserved hole 8 of the insulation plate 9 may be for convenient installation or to cooperate with other components. At the same time, the insulation plate 9, located in the mounting groove, plays a role in heat insulation. The setting of the insulation plate 9 effectively prevents heat exchange between the inside of the cabinet 4 and the external environment. In high-altitude and cold regions, it can reduce heat loss inside the cabinet, maintain a relatively stable temperature inside the cabinet, provide a suitable working environment for cables and other equipment, and extend the service life of the equipment. The snap-fit hole 6 and the mounting box are opened on the panel 2. The structure of 11 makes the installation of the entire insulation component more convenient and quick. Through reasonable structural design, when maintenance or replacement of parts is required, the relevant components can be easily disassembled and installed, reducing maintenance costs and time. The locking components such as the baffle plate 14, the pressing plate 15, and the spring telescopic rod 16 are placed inside the mounting box 11, which not only protects them and prevents external factors (such as dust, collisions, etc.) from interfering with their normal operation, but also makes the entire locking structure more compact, ensuring the stability and reliability of the press-lock and press-unlock functions.
[0023] The circulation assembly includes two uprights 38, which are symmetrical to each other and fixed inside the cabinet 4. A first fixing plate 34 and a second fixing plate 40 are fixed between the two uprights 38. Several ventilation holes 36 are provided above the first fixing plate 34, and two circulating fans 35 are fixed above the first fixing plate 34. Several ventilation holes 41 are provided above the second fixing plate 40, and two circulating fans 39 are fixed above the second fixing plate 40. The two circulating fans 35 and 39 are staggered. A heater 13 is fixed between the two uprights 38, located below the second fixing plate 40. Several mounting brackets 37 are fixed between the two uprights 38. The two symmetrical uprights 38 serve as the entire assembly. The supporting structure of the circulation component is fixed inside the cabinet 4 to provide a stable mounting base for other components. Circulation fans 35 and 39 are respectively installed on the fixing plate 34 and fixing plate 40. Ventilation holes 36 and 41 provide channels for airflow. The staggered arrangement of circulation fans 35 and 39 creates a more complex and uniform airflow circulation path inside the cabinet 4. The heater 13 is located below the fixing plate 40. When heating is required, the heater 13 generates heat, and the hot air diffuses upwards through the ventilation holes 41 of the fixing plate 40. The circulation fan 29 blows the hot air around the cabinet 4, and the circulation fan 39 further transports the hot air upwards to the top of the cabinet, forming a 'bottom heating' effect. The 'central diffusion - upper circulation' airflow path distributes heat evenly to every corner of the cabinet 4 through the action of the circulation fan, ensuring uniform temperature inside the cabinet. The mounting bracket 37 can be used to install other related equipment or components. The staggered arrangement of circulation fan 1 35 and circulation fan 2 39, along with the design of the ventilation holes, allows the airflow inside the cabinet 4 to circulate fully. When the heater 13 is working, heat can be evenly diffused throughout the entire cabinet 4 with the airflow, avoiding localized overheating or underheating, and providing a stable temperature environment for cables and other equipment, ensuring normal operation. Through a reasonable airflow circulation design, heat can be transferred and distributed more effectively within the cabinet 4, reducing heat waste. In high-altitude and frigid regions where energy acquisition may be relatively difficult, this efficient energy utilization method can reduce energy consumption and save operating costs. The mounting bracket 37 allows the circulation components to be flexibly installed with other equipment or components according to actual needs, improving the utilization rate of the entire internal space of the cabinet 4 and the adaptability of the equipment. Whether adding monitoring equipment or other auxiliary devices, they can be easily installed on the mounting bracket 37 to meet different usage scenarios and functional requirements.
[0024] A support frame 3 is fixed at the bottom of the cabinet 4, and an automatic vent valve is installed on the support frame 3. An air intake grille is also provided on the support frame 3. A top plate 5 is fixed at the top of the cabinet 4. The support frame 3 provides stable support for the cabinet 4, allowing it to be placed securely on the ground. The automatic vent valve automatically adjusts its opening and closing according to the internal pressure of the cabinet 4. When the internal pressure is too high, the automatic vent valve opens to release some gas, maintaining pressure balance. When the internal pressure is normal, the automatic vent valve closes to prevent excessive entry of outside air. The air intake grille allows outside air to enter the cabinet 4 when needed, working in conjunction with the circulation component to achieve airflow and temperature regulation. The top plate 5 protects the top of the cabinet 4, preventing dust, rainwater, etc., from falling into the cabinet. The stable support of the support frame 3 ensures the stability of the cabinet 4. It remains stable under various terrain and environmental conditions, and will not tip over or shake due to external factors (such as wind, uneven ground, etc.), protecting the normal operation of the equipment and locking, insulation and other components inside the cabinet. The automatic vent valve can automatically regulate the pressure inside the cabinet 4, avoiding damage to the equipment and cabinet 4 structure caused by excessive or insufficient pressure. In high-altitude areas, where air pressure changes are large, the automatic vent valve can respond to pressure changes in a timely manner, ensuring a stable environment inside the cabinet and extending the service life of the equipment. The design of the air intake grille and top plate 5 not only ensures the air circulation inside the cabinet 4, which is conducive to temperature regulation and equipment heat dissipation, but also effectively prevents dust, rainwater and other impurities from entering the cabinet, providing good protection for the equipment inside the cabinet and improving the reliability and stability of the entire cable branch box in harsh environments.
[0025] Working principle: When it is necessary to lock the cabinet 4 and the hinged door 7, the operator presses the second movable block 29. The second movable block 29 slides on the sliding groove 30 and the limiting block 24, while simultaneously compressing the compression spring 23, achieving an initial locking action. Upon further pressing, the second movable block 29 drives the L-shaped square rod 26 hinged to it to move. The cylinder 22 on the side of the L-shaped square rod 26 slides in the guide groove 31, guiding the L-shaped square rod 26 to move along a specific trajectory. As the pressing goes deeper, the L-shaped square rod 26 interacts with the L-shaped baffle 42 fixed inside the locking chamber. When it reaches the appropriate position, the L-shaped square rod 26 is blocked by the L-shaped baffle 42, achieving a more stable locking. Upon pressing again, the second movable block 29 moves in the opposite direction, driving the L-shaped square rod 26 to move in the opposite direction, and the cylinder 22 slides in the guide groove. The L-shaped square rod 26 slides in the reverse direction within 31, disengaging from the L-shaped baffle 42 and unlocking the device. Additionally, when pressure is applied to the pressing plate 15, it moves the moving block 17, simultaneously compressing the spring telescopic rod 16. The locking blocks 19 on both sides of the moving block 17 act as limiters and guides, ensuring stable movement. The compression and extension of the spring telescopic rod 16 provide a buffering effect. When the locking position is reached, its elasticity and the coordination of all components achieve the locking function. Upon pressing again, the spring telescopic rod 16 is further compressed, releasing its elastic potential energy and pushing the moving block 17 in the reverse direction to unlock. The baffle 14 slides on the moving block 17 to adapt to forces applied in different directions. This multi-component coordinated locking method greatly increases the locking force. In high-altitude and frigid regions, this design effectively prevents the cabinet 4 and the hinged door 7 from accidentally opening under frequent impacts from strong winds, vibrations, and other external forces, ensuring that internal cables and other equipment remain safely sealed. This significantly improves the reliability and safety of the cable distribution box in complex environments. Furthermore, the cooperation between the guide groove 31 and the cylinder 22 provides precise guidance for the movement of the L-shaped square rod 26. Even with changes in material dimensions at low temperatures, the accuracy of the movement of each component is guaranteed, ensuring the normal operation of locking and unlocking functions. This enhances the adaptability and stability of the entire locking assembly. Simultaneously, this locking structure is simple to operate; operators only need to press the moving block 29 or the pressing plate 15, without complicated steps or additional tools. In high-altitude and frigid regions, when operators are wearing heavy protective gear and have limited mobility… This simple operation method improves work efficiency, reduces operation time, and lowers the risk of operator exposure in harsh environments. The snap-fit holes 6 on panel 2 provide positioning and initial connection points for the installation of the snap-fit plate 1. The mounting box 11 is connected to the snap-fit holes 6, allowing the snap-fit plate 1 to be installed onto the mounting box 11. The mounting holes 10 can be used for further fixing of components or passage of wiring. The concave grooves 12 on the snap-fit plate 1 interact with other components during locking and unlocking operations. The insulation plate 9 is located within the mounting groove, and its pre-drilled holes 8 facilitate installation or cooperation with other components, while also providing thermal insulation. This effectively prevents heat exchange between the cabinet 4 and the external environment, reducing heat loss within the cabinet and maintaining a relatively stable internal temperature in high-altitude and frigid regions, thus providing a suitable working environment for cables and other equipment.To extend the service life of the equipment, the structural design on panel 2 makes the installation of the insulation components convenient and quick, facilitating maintenance and replacement of parts, reducing maintenance costs and time. Locking components are placed inside the mounting box 11, protecting them from external interference and ensuring a more compact locking structure. This also guarantees the stability and reliability of the press-to-lock and press-to-unlock functions. Two symmetrical columns 38 are fixed inside the cabinet 4, providing a stable mounting base for other components. Circulating fans 35 and 39 are respectively installed on fixing plate 1 34 and fixing plate 2 40. Ventilation holes 36 and 41 provide channels for airflow. The staggered arrangement of circulating fans 35 and 39 creates a complex and uniform airflow circulation path inside the cabinet 4. The heater 13 is located below fixing plate 2 40. When heating is required, the heater 13 generates heat, which is evenly distributed to all corners inside the cabinet 4 by the circulating fans. The mounting bracket 37 can be used to install other related equipment or components. This design ensures full airflow circulation inside the cabinet 4, allowing the heat from the heater 13 to circulate with the airflow. Uniform heat diffusion prevents localized overheating or underheating, providing a stable temperature environment for cables and other equipment, ensuring normal operation. Simultaneously, a rational airflow circulation design more effectively transfers and distributes heat, reducing heat waste. In high-altitude, frigid regions where energy access is difficult, this reduces energy consumption and saves operating costs. The mounting bracket 37 improves the utilization rate of the internal space of the cabinet 4 and the adaptability of the equipment, meeting different usage scenarios and functional requirements. Furthermore, the support frame 3 provides stable support for the cabinet 4, allowing it to be placed securely on the ground, protecting the equipment and components inside and ensuring normal operation. The automatic vent valve automatically adjusts its opening and closing based on the internal pressure of the cabinet 4. In high-altitude areas with large pressure fluctuations, it responds promptly to pressure changes, preventing damage to the equipment and cabinet 4 structure due to excessively high or low pressure, extending equipment lifespan. The design of the air intake grille and top plate 5 ensures airflow inside the cabinet 4, facilitating temperature regulation and equipment heat dissipation, while effectively preventing dust, rainwater, and other impurities from entering the cabinet, providing good protection for the equipment inside and improving the reliability and stability of the entire cable branch box in harsh environments.
[0026] Although embodiments of the 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 invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A cable branch box structure suitable for high-altitude and frigid regions, comprising a cabinet (4), a hinged door (7) on the cabinet (4), and mounting grooves on both the cabinet (4) and the door (7), wherein a plurality of locking components are provided inside the mounting grooves, characterized in that: The locking assembly includes a fixed block (18), two L-shaped rods (28), and two movable blocks (29). The fixed block (18) is fixed inside the mounting groove. A locking groove is formed inside the fixed block (18). Two partitions (32) are fixed inside the locking groove, dividing the locking groove into a spring return chamber and a locking chamber. A sliding groove (30) is formed on the partition (32), which is connected to the spring return chamber and the locking chamber respectively. A limit block (24) is fixed inside the spring return chamber. The two movable blocks (29) are symmetrical to each other and are L-shaped. The movable blocks (29) are slidably set on the sliding groove (30). The second movable block (29) is slidably set on the limiting block (24). The end of the second movable block (29) is provided with a compression spring (23). The L-shaped round rod (28) is rotatably set inside the spring return chamber. The second movable block (29) is provided with a first movable groove (20) and a second movable groove (21). The height of the second movable groove (21) is lower than that of the first movable groove (20). A triangular stop block (27) is fixed on the second movable groove (21). An inclined pad block (33) is fixed above the second movable groove (21). The inclined pad block (33) connects the first movable groove (20) and the second movable groove (21). A heat preservation component is provided on the mounting groove. A circulation component is provided inside the cabinet (4).
2. The cable branch box structure suitable for high-altitude and frigid regions according to claim 1, characterized in that: The locking assembly also includes a first movable block (17), two L-shaped square rods (26) and two L-shaped baffles (42). The two L-shaped square rods (26) are hinged to the second movable block (29). An inclined block (25) is fixed above the second movable block (29). The two L-shaped baffles (42) are symmetrical to each other and are fixed inside the locking chamber. A guide groove (31) is provided on the partition (32). A cylinder (22) is fixed on the side of the L-shaped square rod (26). The cylinder (22) is slidably disposed inside the guide groove (31).
3. The cable branch box structure suitable for high-altitude and frigid regions according to claim 2, characterized in that: The end of the movable block (17) is fixed with a pressing plate (15), and both sides of the movable block (17) are fixed with a locking block (19). Two spring telescopic rods (16) are fixed on the pressing plate (15), and a stop plate (14) is fixed on the two spring telescopic rods (16). The stop plate (14) is slidably set on the movable block (17).
4. The cable branch box structure suitable for high-altitude and frigid regions according to claim 1, characterized in that: The insulation component includes a panel (2) and an insulation board (9). Several fastening holes (6) are provided on the upper part of the panel (2). Several mounting boxes (11) are fixed on the lower part of the panel (2). The mounting boxes (11) are connected to the fastening holes (6) at the corresponding positions. Mounting holes (10) are provided inside the mounting boxes (11). A buckle plate (1) is provided on the mounting boxes (11). A concave groove (12) is provided on the buckle plate (1). A baffle plate (14), a pressing plate (15) and a spring telescopic rod (16) are all located inside the mounting boxes (11). Several reserved holes (8) are provided on the upper part of the insulation board (9). The insulation board (9) is located inside the mounting groove.
5. A cable branch box structure suitable for high-altitude and frigid regions according to claim 1, characterized in that: The circulation assembly includes two columns (38), which are symmetrical to each other and are fixed inside the cabinet (4). A fixing plate 1 (34) and a fixing plate 2 (40) are fixed between the two columns (38). Several ventilation holes 1 (36) are opened above the fixing plate 1 (34). Two circulation fans 1 (35) are fixed above the fixing plate 1 (34). Several ventilation holes 2 (41) are opened above the fixing plate 2 (40). Two circulation fans 2 (39) are fixed above the fixing plate 2 (40). The two circulation fans 1 (35) and the two circulation fans 2 (39) are staggered. A heater (13) is fixed between the two columns (38). The heater (13) is located below the fixing plate 2 (40). Several mounting brackets (37) are fixed between the two columns (38).
6. A cable branch box structure suitable for high-altitude and frigid regions according to claim 1, characterized in that: A support frame (3) is fixed below the cabinet (4), an automatic ventilation valve is provided on the support frame (3), an air intake grille is provided on the support frame (3), and a top plate (5) is fixed above the cabinet (4).