A cable branch box

Abstract

The application discloses a cable branch box, aiming at solving the problems of the existing branch box, such as the hinge opening angle ≤120°, complex structure, high cost, difficult disassembly and maintenance. It comprises a box body, a door plate and a hinge structure, the hinge structure comprises a rotating shaft vertically fixed on the box body through a connecting piece, a connecting shaft with one end fixedly connected with the door plate and vertically rotatably connected with the rotating shaft, and an active gap between the rotating shaft and the box body; four hinges, corresponding locking mechanisms and transmission mechanisms can be optionally arranged, the connecting piece is an upper / lower supporting shaft, the connecting shaft is provided with a semicircular limiting ring groove embedded with the rotating shaft; the application realizes the opening and closing of the door plate at an angle greater than 120° by the vertical cooperation of the rotating shaft and the connecting shaft and the active gap; the four hinges and the transmission mechanism are adapted to multidirectional opening, avoiding the obstruction during maintenance; the structure does not have additional auxiliary components, reducing the processing and assembly cost, reducing wear, and the notch design of the lower supporting shaft facilitates the disassembly and assembly of the door plate; the sealing plate and the locking mechanism are matched to ensure the stability and safety of the equipment, improve the maintenance efficiency and service life.

Description

Technical Field

[0001] This invention relates to the field of cable equipment technology, and in particular to a cable branch box. Background Technology

[0002] A cable branch box is a device specifically designed for branching connections in cable lines. Its main function is to split or transfer cables to meet the connection needs of cables in different circuits, voltage levels, and applications, and it also has the function of organizing cables in an orderly manner.

[0003] Existing cable distribution boxes mainly consist of a box body and a door. In current structures, the connection between the box body and the door is mostly achieved using hinges. Traditional hinges connect the hinges by hinged blades and pins, with the blades fixed to both the box body and the door. Due to limitations in blade length and box space, the opening angle is difficult to exceed 120°. During maintenance, insufficient door angle can obstruct critical areas such as wiring ports, requiring operators to frequently adjust their positions, increasing operational difficulty, and potentially leading to misoperation due to limited visibility, thus affecting maintenance efficiency and safety.

[0004] While some hinges, such as double-leaf hinges and recessed hinges, can open 180°, additional auxiliary components are required to avoid interference during opening and closing, significantly increasing structural complexity. For example, double-leaf hinges require an intermediate linkage shaft and a limiting piece added to the single-leaf design, doubling the number of parts. Furthermore, the linkage shaft and the leaf must be coaxial to prevent jamming. Recessed hinges require recessed grooves on the side walls of the housing or door for clearance, and guide sliders to prevent misalignment. These grooves need precision milling, and the gap between the slider and the groove must be strictly controlled to ensure stable opening and closing.

[0005] This complex structure leads to additional processing and procurement costs. Precision grooves and linkage shafts require specialized equipment for processing, and repeated calibration is needed during assembly, extending the working time. In addition, the complex structure makes the components more susceptible to wear and damage from environmental factors during long-term use, affecting their service life. Furthermore, its overly complex structure makes the cabinet doors more difficult to disassemble and assemble, affecting maintenance efficiency. Summary of the Invention

[0006] The main objective of this invention is to provide a cable distribution box that, by setting up a hinge structure with a vertical rotating shaft, a connecting shaft for vertically rotating door panels, and an movable gap between the rotating shaft and the box body, enables the door panels to open and close at a large angle. At the same time, it reduces processing, procurement, and assembly costs, reduces wear on parts to extend service life, and facilitates door panel disassembly and maintenance. Combined with a sealing and locking structure, it ensures the safe and stable operation of the equipment inside the box.

[0007] To achieve the above objectives, the present invention proposes a cable branch box, comprising a box body and a door panel, characterized in that it further comprises:

[0008] The hinge structure has four hinges, evenly distributed on both sides of the cabinet and the door panel, allowing the door panel to rotate relative to the cabinet along one side; it includes:

[0009] A rotating shaft is fixedly mounted on the housing via a connector and is arranged along the vertical direction of the housing.

[0010] The connectors are provided in pairs, with a strip-shaped structure and perpendicular to the housing; the two connectors are provided at both ends of the rotating shaft, including an upper support shaft and a lower support shaft; the lower support shaft is rotatably connected to the housing; one end of the rotating shaft is rotatably connected to the upper support shaft, and the other end is detachably provided to the lower support shaft; the lower support shaft is provided with a connecting ring groove, and one end of the rotating shaft is slidably provided in the connecting ring groove; it also includes a notch provided on the lower support shaft, which communicates with the outside and the connecting ring groove, and one end of the rotating shaft can be separated from the lower support shaft through the notch;

[0011] A connecting shaft, one end of which is fixedly mounted on one side of the door panel, and the other end is rotatably connected to a rotating shaft, wherein the rotating shaft and the connecting shaft are perpendicular to each other;

[0012] The clearance is provided between the rotating shaft and the housing, allowing the end of the connecting shaft and the rotating shaft to move between the rotating shaft and the housing.

[0013] The door panel is provided with four locking mechanisms, which correspond to the number and position of the hinges and are used to lock the door panel and the box body in position when the door panel is closed.

[0014] A transmission mechanism is provided between the locking mechanism and the hinge mechanism. The transmission mechanism is used to allow the connecting shaft to disengage from the rotating shaft when the locking mechanism releases the door panel from the housing.

[0015] In one possible implementation, the housing is provided with a sealing plate extending toward the door panel, the sealing plate being used to seal the gap between the housing and the door panel; the sealing plate is L-shaped, with one end connected to the housing and the other end fitted to the door panel.

[0016] In one possible implementation, a locking surface is formed on the inner wall of the side of the housing opposite to the door panel; the locking mechanism includes a control shaft rotatably mounted on the door panel, and a locking rod is provided at one end of the control shaft opposite to the housing. The locking rod and the control shaft form an L-shaped structure. The control shaft can rotate the locking rod toward the side of the housing until the locking rod is in contact with the locking surface to restrict the door panel from rotating away from the housing.

[0017] In one possible implementation, both the rotating shaft and the connecting shaft are cylindrical. The connecting shaft is provided with a limiting annular groove, and the rotating shaft is embedded in the limiting annular groove. The cross-section of the limiting annular groove is a semi-circle that fits against the outer wall of the connecting shaft. Through the limiting annular groove, the connecting shaft can rotate relative to the rotating shaft or make circular motion around the rotating shaft as the axis.

[0018] In one possible implementation, the transmission mechanism includes a drive gear and an arc-shaped rack. The drive gear is fixedly disposed at one end of the connecting shaft located inside the housing, and the arc-shaped rack is disposed at the edge of the locking rod away from the control shaft. When the locking rod rotates around the control shaft, the arc-shaped rack can mesh with the drive gear to drive the lower support shaft to reciprocate.

[0019] Compared with the prior art, the beneficial effects of this application are as follows:

[0020] This invention uses a connector to stably and vertically fix the rotating shaft to the housing, providing basic support for rotation. Simultaneously, one end of the connecting shaft is fixed to the door panel, while the other end rotates perpendicularly to the rotating shaft. This breaks the structural limitations of traditional hinges that rely on leaf hinges, avoiding the constraint of leaf length on the opening angle. The clearance between the rotating shaft and the housing provides movement space for the ends of the connecting shaft and rotating shaft, effectively avoiding interference between the door panel and the housing sidewall during door rotation. This solves the core problem of traditional hinges' inability to open angles exceeding 120°, enabling smoother door panel rotation at larger angles. It ensures that the door panel does not obstruct critical areas such as wiring ports inside the housing during maintenance, reducing the inconvenience of operators frequently adjusting their positions, lowering the risk of misoperation due to limited visibility, and improving maintenance efficiency and safety. Furthermore, this structure requires no additional auxiliary components, fundamentally avoiding the increased processing and procurement costs, extended assembly time, and easy wear and damage of parts caused by complex structures, thus balancing practicality and economy.

[0021] In addition, the four hinge structures are distributed in two sets on both sides of the door panel. Through the symmetrical structural layout on both sides, and with the locking mechanism and transmission mechanism corresponding to each hinge structure, when the two locking mechanisms on one side of the door panel are unlocked, the transmission mechanism can drive the connecting shaft in the two hinge structures on that side to disengage from the pivot. At this time, in the two unlocked hinge structures on the other side, the pivot and the connecting shaft are connected perpendicularly and the movement gap provides clearance, making the unlocked side a stable rotation fulcrum, and realizing the smooth rotation of the door panel along the side edge to the other side.

[0022] Similarly, unlocking the two locking mechanisms at one end of the door panel allows the corresponding connecting shaft to disengage from the pivot, and the hinge structure at the other end becomes the fulcrum, enabling the door panel to rotate along the edge of that end to the other end. This completely solves the limitation of traditional hinges that can only rotate in one direction, adapting to the maintenance needs and occasions of wiring ports at different positions on the top, bottom, left, and right of the cabinet. Furthermore, the vertical cooperation between the pivot and the connecting shaft in each hinge structure, as well as the avoidance of movement clearance, ensures that the door panel can achieve large-angle opening and closing during multi-directional rotation, never obstructing key maintenance areas, further improving the flexibility and convenience of maintenance. At the same time, the structural design of the two groups on both sides also enhances the stability of the door panel when opening and closing, avoiding shaking or jamming caused by force on one side, ensuring long-term reliability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a diagram of the internal structure of the present invention;

[0026] Figure 3 This is a partial structural diagram of the door panel and the box body of the present invention;

[0027] Figure 4 for Figure 1 Enlarged view at point A;

[0028] Figure 5 This is a structural diagram of the back of the door panel of the present invention;

[0029] Figure 6 This is a structural diagram showing the fit between the locking mechanism and the hinge structure of the present invention;

[0030] Figure 7 This is a side sectional view of the hinge structure of the present invention;

[0031] Figure 8 This is a top cross-sectional view of the hinge structure of the present invention.

[0032] Explanation of icon numbers:

[0033] 1. Housing; 2. Door panel; 3. Hinge structure; 30. Rotating shaft; 31. Connecting shaft; 32. Movement clearance; 33. Connecting piece; 330. Upper support shaft; 331. Lower support shaft; 332. Connecting ring groove; 333. Notch; 34. Limiting ring groove; 4. Sealing plate; 5. Locking mechanism; 50. Locking surface; 51. Control shaft; 52. Locking rod; 6. Transmission mechanism; 60. Drive gear; 61. Arc rack.

[0034] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0036] Example 1

[0037] like Figure 1-8 As shown, the present invention proposes a housing 1, a door panel 2, and at least two hinge structures 3.

[0038] like Figure 1-3 As shown, the box 1 is the main load-bearing structure of the cable branch box, used to accommodate the cable branch connection components; the door panel 2 is rotatably connected to one side of the box 1 through at least two hinge structures 3, so as to realize the opening and closing action of the door panel 2 relative to the box 1 along its own side.

[0039] like Figure 4-6 As shown, the hinge structure 3 includes a pivot 30, a connecting shaft 31, and a movable gap 32. The pivot 30 is fixedly mounted on the side wall of the housing 1 via a connector 33, and the axial direction of the pivot 30 is consistent with the height direction of the housing 1. A pair of connectors 33 are provided, which are strip-shaped and their length direction is perpendicular to the side wall of the housing 1. The two connectors 33 are fixedly mounted on the upper and lower ends of the pivot 30, respectively, to provide support for the pivot 30 at both ends, ensuring that the pivot 30 maintains a vertical posture and does not shift during use. One end of the connecting shaft 31 is fixed to one side edge of the door panel 2 by fasteners, and the other end of the connecting shaft 31 is rotatably connected to the rotating shaft 30. The axial direction of the connecting shaft 31 is perpendicular to the axial direction of the rotating shaft 30 to meet the movement requirements of the door panel 2 rotating around the rotating shaft 30. The movable gap 32 is provided between the rotating shaft 30 and the side wall of the housing 1. The size of the movable gap 32 is adapted to the volume of the connection end of the connecting shaft 31 and the rotating shaft 30, and is used to provide movable space for the connection end of the connecting shaft 31 and the rotating shaft 30 to avoid interference between the connection end and the side wall of the housing 1 during rotation.

[0040] In addition, a sealing plate 4 extending toward the door panel 2 is fixedly installed on the side wall of the box 1. The sealing plate 4 has an "L" shaped structure. One end of the sealing plate 4 is fixedly connected to the side wall of the box 1, and the other end of the sealing plate 4 extends toward the outer surface of the door panel 2. When the door panel 2 is closed, this end of the sealing plate 4 is tightly fitted with the outer surface of the door panel 2 to seal the gap between the box 1 and the door panel 2. A locking mechanism 5 is also provided on the door panel 2. The locking mechanism 5 is used to lock the door panel 2 and the box 1 in position when the door panel 2 is closed. Correspondingly, a flat locking surface 50 is formed on the inner wall of the side of the box 1 opposite to the door panel 2. The locking mechanism 5 includes a control shaft 51. The control shaft 51 is rotatably mounted on the inner wall of the door panel 2 through a rotating bearing. A locking rod 52 is fixedly provided at one end of the control shaft 51 opposite to the box 1. The locking rod 52 and the control shaft 51 together form an L-shaped structure. The control shaft 51 can rotate around its own axis to drive the locking rod 52 to rotate toward the locking surface 50 of the box 1 until the side wall of the locking rod 52 is completely in contact with the locking surface 50, thereby restricting the door panel 2 from rotating away from the box 1.

[0041] In practical use, when the cable branch box is in the normally closed state, the control shaft 51 is in the locked position. At this time, the locking rod 52 is tightly fitted with the locking surface 50 of the box body 1 under the drive of the control shaft 51. Through the abutment action of the locking rod 52 and the locking surface 50, the door panel 2 is effectively restricted from moving away from the box body 1, preventing the door panel 2 from being opened accidentally due to external force, and ensuring the safety of the cable connection components inside the box. At the same time, the L-shaped sealing plate 4 is tightly fitted with the outer surface of the door panel 2, which can block external dust, moisture and other impurities from entering the box through the gap between the box body 1 and the door panel 2, preventing the cable joints inside the box from getting damp and short-circuiting or the metal parts from rusting, and ensuring the stable operation of the cable branch box. In order to further improve the sealing effect, a rubber gasket can also be set between the door panel 2 and the sealing plate 4 to improve the sealing effect.

[0042] When it is necessary to inspect the cable connection ports inside the box, the operator can rotate the outer end of the control shaft 51 to drive the locking rod 52 to rotate around the axis of the control shaft 51 away from the locking surface 50 until the locking rod 52 is completely separated from the locking surface 50, thus releasing the locking state of the door panel 2 and the box 1. Subsequently, the operator can push the door panel 2. At this time, the connecting shaft 31, which is fixedly connected to the door panel 2, will rotate around the rotating shaft 30. Since the connecting shaft 31 and the rotating shaft 30 are connected perpendicularly, and there is a movable gap 32 between the rotating shaft 30 and the side wall of the box 1, the end of the connecting shaft 31 connected to the rotating shaft 30 can move freely within the movable gap 32, avoiding interference with the side wall of the box 1. This allows the opening and closing angle of the door panel 2 to no longer be limited by the length of the traditional hinge leaf and the space of the box 1, and can easily achieve an opening and closing angle greater than 120°. It can even be rotated to a state where the door panel 2 is parallel to the side wall of the box 1, without obstructing the key maintenance areas such as the connection ports inside the box. Operators can clearly observe the internal components and perform maintenance operations without frequently changing their positions, greatly reducing the risk of misoperation due to limited visibility and improving maintenance efficiency and safety.

[0043] After maintenance, the operator pushes the door panel 2 in the reverse direction, and the connecting shaft 31 rotates back to its initial position around the rotating shaft 30 until the door panel 2 is flush with the side wall of the box 1. At this time, the control shaft 51 is rotated again, driving the locking rod 52 to rotate towards the locking surface 50 until the locking rod 52 is tightly flush with the locking surface 50, completing the locking of the door panel 2 and the box 1. At the same time, the sealing plate 4 is re-flush with the outer surface of the door panel 2, restoring the sealing state of the box 1. The entire structure does not require additional auxiliary components such as the intermediate linkage shaft of the double-leaf linkage hinge, the limit plate or the recess of the recessed hinge, or the guide slider. The number of parts is small and the structure is simple, which not only reduces the processing and procurement costs and assembly and calibration time, but also effectively extends the service life of the cable branch box due to the low correlation of parts and the few wear points, thus taking into account both practicality and economy.

[0044] Example 2

[0045] Based on Embodiment 1, in order to further enable the door panel 2 to open freely in any direction (up, down, left, right) to avoid affecting the maintenance work of the staff, and to solve the problem of inconvenience in disassembling and maintaining the door panel 2, this embodiment optimizes the number of hinge structures 3, the structure of the connecting parts 33, and the linkage method of the locking mechanism 5. The specific improvements are as follows:

[0046] like Figure 1-8As shown, in this embodiment, four hinge structures 3 are provided, and they are fixedly installed in pairs on the left and right edges of the door panel 2, that is, on both sides of the door panel 2. The two hinge structures 3 in each pair are located at the upper and lower ends of the corresponding side edges of the door panel 2, forming a "symmetrical" layout. Correspondingly, four locking mechanisms 5 are also provided. The installation positions of the four locking mechanisms 5 correspond one-to-one with the four hinge structures 3, that is, a locking mechanism 5 is provided next to each hinge structure 3. A transmission mechanism 6 is provided between the locking mechanism 5 and the corresponding hinge structure 3. The transmission mechanism 6 is used to enable the locking mechanism 5 to drive the components of the hinge structure 3 to move while releasing the door panel 2 from the housing 1, so as to realize the disengagement of the connecting shaft 31 from the rotating shaft 30.

[0047] like Figure 4-6 As shown, for the connector 33 of the hinge structure 3, the connector 33 in this embodiment is a combination structure of an upper support shaft 330 and a lower support shaft 331: the upper support shaft 330 is fixedly set at the upper end of the side wall of the housing 1 corresponding to the hinge structure 3 by fasteners, and the lower support shaft 331 is rotatably set at the lower end of the side wall of the housing 1 corresponding to the hinge structure 3 by a rotating bearing, and the upper support shaft 330 and the lower support shaft 331 are vertically coaxially distributed.

[0048] One end of the rotating shaft 30 is rotatably connected to the lower end face of the upper support shaft 330 via a rotating bearing. The other end of the rotating shaft 30 is detachably mounted on the lower support shaft 331. An annular connecting groove 332 is provided on the upper end face of the lower support shaft 331. The inner diameter of the connecting groove 332 is adapted to the diameter of the rotating shaft 30. The lower end of the rotating shaft 30 is slidably embedded in the connecting groove 332. At the same time, a notch 333 is provided on the side wall of the lower support shaft 331 to connect the outside with the connecting groove 332. The width of the notch 333 is slightly larger than the diameter of the rotating shaft 30, so that the lower end of the rotating shaft 30 can be separated from the lower support shaft 331 through the notch 333.

[0049] In addition, such as Figure 7-8 As shown, in this embodiment, both the rotating shaft 30 and the connecting shaft 31 are cylindrical structures. A limiting annular groove 34 extending along the length direction is provided on the outer wall of the end of the connecting shaft 31 near the rotating shaft 30. The cross-section of the limiting annular groove 34 is semi-circular and fits the outer wall of the connecting shaft 31. The inner diameter of the limiting annular groove 34 is adapted to the diameter of the rotating shaft 30. The rotating shaft 30 is embedded in the limiting annular groove 34. Through the constraint of the limiting annular groove 34, the connecting shaft 31 can rotate relative to the rotating shaft 30 and drive the rotating shaft 30 to make circular motion around its own axis, ensuring that the two do not separate during the rotation.

[0050] And such Figure 6As shown, the transmission mechanism 6 includes a drive gear 60 and an arc-shaped rack 61: the drive gear 60 is fixedly connected to one end of the connecting shaft 31 located inside the housing 1 by a flat key, that is, the end of the connecting shaft 31 near the rotating shaft 30. The arc-shaped rack 61 is integrally formed on the edge of the locking rod 52 away from the control shaft 51. The tooth profile of the arc-shaped rack 61 is adapted to the tooth profile of the drive gear 60. When the locking rod 52 rotates around the control shaft 51, the arc-shaped rack 61 can mesh with the drive gear 60, thereby driving the drive gear 60 to rotate around the axis of the connecting shaft 31. The drive gear 60 is connected to the lower end of the lower support shaft 331, and can synchronously drive the lower support shaft 331 to reciprocate around its own axis.

[0051] In practical use, the opening, closing, and locking functions of the door panel 2 in this embodiment are implemented as follows:

[0052] When it is necessary to inspect the wiring ports or components on the right side of the enclosure 1, and the door panel 2 needs to be rotated to the right, the operator only needs to rotate the control shafts 51 of the two locking mechanisms 5 on the left side of the door panel 2: the control shafts 51 drive the left locking rod 52 to rotate away from the locking surface 50 of the enclosure 1. The arc-shaped rack 61 at the end of the locking rod 52 rotates with the locking rod 52 and meshes with the drive gear 60 on the corresponding connecting shaft 31. Under the meshing action, the drive gear 60 drives the lower support shaft 331 to rotate around its own axis until the notch 333 on the lower support shaft 331 rotates to the position aligned with the rotating shaft 30. At this time, in the left hinge structure 3, under the drive of the limiting ring groove 34, the lower end of the rotating shaft 30 slides along the connecting ring groove 332 to the notch 33. At point 3, the lower end of the rotating shaft 30 is separated from the lower support shaft 331 through the notch 333. Although the upper end of the rotating shaft 30 is still rotatably connected to the upper support shaft 330, the connecting shaft 31 has been freed from the constraint of the left rotating shaft 30. The two locking mechanisms 5 on the right side of the door panel 2 remain locked. The right connecting shaft 31 and the rotating shaft 30 are stably engaged through the limiting ring groove 34 to form a rotation fulcrum. When the operator pushes the left side of the door panel 2, the door panel 2 can rotate smoothly around the right rotating shaft 30. Combined with the movable gap 32 between the rotating shaft 30 and the housing 1 and the vertical cooperation between the connecting shaft 31 and the rotating shaft 30, the door panel 2 can rotate to a state of 180° parallel to the side wall of the housing 1. This allows the operator not to be affected by the door panel 2 during work, and maintenance can be carried out without adjusting the standing position. Similarly, if the left port needs to be inspected, the two locking mechanisms 5 on the right side can be unlocked to allow the door panel 2 to rotate to the left; if the upper or lower port needs to be inspected, the two locking mechanisms 5 at the upper or lower end of the door panel 2 only need to be unlocked, so that the connecting shaft 31 at the corresponding end is disengaged from the rotating shaft 30, and the hinge structure 3 at the other end can be used as a fulcrum to allow the door panel 2 to rotate up or down, thus completely solving the limitation that the door panel 2 can only rotate in one direction in Embodiment 1.

[0053] When the door panel 2 needs to be disassembled for deep maintenance, the operator simultaneously rotates the control shafts 51 of the four locking mechanisms 5 to release all four locking mechanisms 5. The arc-shaped rack 61 of each locking mechanism 5 meshes with the corresponding drive gear 60, driving the four lower support shafts 331 to rotate synchronously, so that the notches 333 of all the lower support shafts 331 are aligned with the lower ends of the corresponding rotating shafts 30. Then the operator gently lifts the door panel 2 upwards, and the door panel 2 drives the four connecting shafts 31 to move upwards synchronously. The connecting shafts 31 drive the rotating shafts 30 to move upwards through the limiting ring grooves 34, so that the lower ends of the rotating shafts 30 disengage from the notches 333 of the lower support shafts 331. At the same time, the upper ends of the rotating shafts 30 and the rotating connection of the upper support shafts 330 are separated under the upward force. All four connecting shafts 31 are completely disengaged from the corresponding rotating shafts 30, and the door panel 2 can be easily removed without disassembling complex parts.

[0054] When installing the door panel 2, simply align the limiting ring groove 34 of the connecting shaft 31 with the rotating shaft 30, so that the lower end of the rotating shaft 30 is inserted into the connecting ring groove 332 of the lower support shaft 331 through the notch 333, rotate the control shaft 51 in the opposite direction, and the arc rack 61 drives the drive gear 60 to rotate the lower support shaft 331 back to the initial position. At the same time, the locking rod 52 is engaged with the locking surface 50 of the housing 1 to complete the locking.

[0055] Furthermore, when cable distribution boxes need to be stacked in multiple layers, traditional door panels 2, if they can only open upwards, will interfere with the bottom of the upper box 1, and if they can only open downwards, they will conflict with the top of the lower box 1. In this embodiment, the opening direction can be selected according to the stacking gap. If the vertical gap is narrow, the door panel 2 can be opened to the left and right. If the left and right sides are close to the wall or other equipment, it can be switched to vertical opening, ensuring that the door panel 2 can be fully opened without touching the surrounding equipment in any stacking or densely arranged environment. This avoids the problem of limited operation due to restricted opening, which may result in only being able to reach out for operation or poor visibility, and solves the problem of difficult maintenance in extreme installation environments.

[0056] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0057] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cable branch box, comprising a box body (1) and a door panel (2), characterized in that, Also includes: The hinge structure (3) has four hinges, which are evenly distributed on both sides of the box body (1) and the door panel (2) to allow the door panel (2) to rotate relative to the box body (1) along one side of itself; it includes: A rotating shaft (30) is fixedly mounted on the housing (1) by a connector (33) and is arranged in the vertical direction of the housing (1); A pair of connectors (33) are provided, which are strip-shaped and perpendicular to the box (1); the two connectors (33) are provided at both ends of the rotating shaft (30), including an upper support shaft (330) and a lower support shaft (331); the lower support shaft (331) is rotatably connected to the box (1); one end of the rotating shaft (30) is rotatably connected to the upper support shaft (330), and the other end is detachably provided to the lower support shaft (331); a connecting ring groove (332) is provided on the lower support shaft (331), and one end of the rotating shaft (30) is slidably provided in the connecting ring groove (332); it also includes a notch (333) provided on the lower support shaft (331) and communicating with the outside and the connecting ring groove (332), and one end of the rotating shaft (30) can be separated from the lower support shaft (331) through the notch (333); A connecting shaft (31) is fixed at one end to one side of the door panel (2) and rotatably connected to a rotating shaft (30) at the other end. The rotating shaft (30) and the connecting shaft (31) are perpendicular to each other. The movable clearance (32) is provided between the rotating shaft (30) and the housing (1) to allow one end of the connecting shaft (31) and the rotating shaft (30) to move between the rotating shaft (30) and the housing (1); The door panel (2) is provided with four locking mechanisms (5), which correspond to the number and position of the hinges and are used to lock the door panel (2) and the box (1) in position when the door panel (2) is closed. A transmission mechanism (6) is provided between the locking mechanism (5) and the hinge mechanism. The transmission mechanism (6) is used to allow the connecting shaft (31) to disengage from the rotating shaft (30) when the locking mechanism (5) releases the lock between the door panel (2) and the box (1).

2. A cable branch box according to claim 1, characterized in that, The box body (1) is provided with a sealing plate (4) extending towards the door panel (2). The sealing plate (4) is used to seal the gap between the box body (1) and the door panel (2). The sealing plate (4) is "L" shaped, with one end connected to the box body (1) and the other end fitted to the door panel (2).

3. A cable branch box according to claim 1, characterized in that, The inner wall of the box (1) opposite to the door panel (2) has a locking surface (50); the locking mechanism (5) includes a control shaft (51) rotatably mounted on the door panel (2), and a locking rod (52) is provided at one end of the control shaft (51) opposite to the box (1). The locking rod (52) and the control shaft (51) form an L-shaped structure. The control shaft (51) can rotate the locking rod (52) toward the box (1) until the locking rod (52) fits against the locking surface (50) to restrict the door panel (2) from rotating away from the box (1).

4. A cable branch box according to claim 3, characterized in that, Both the rotating shaft (30) and the connecting shaft (31) are cylindrical. The connecting shaft (31) is provided with a limiting annular groove (34). The rotating shaft (30) is embedded in the limiting annular groove (34), and the cross-section of the limiting annular groove (34) is a semi-circle that fits against the outer wall of the connecting shaft (31). Through the limiting annular groove (34), the connecting shaft (31) can rotate relative to the rotating shaft (30) or make circular motion with the rotating shaft (30) as the axis.

5. A cable branch box according to claim 4, characterized in that, The transmission mechanism (6) includes a drive gear (60) and an arc rack (61). The drive gear (60) is fixedly installed at one end of the connecting shaft (31) located inside the housing (1). The arc rack (61) is installed at the edge of the locking rod (52) away from the control shaft (51). When the locking rod (52) rotates around the control shaft (51), the arc rack (61) can mesh with the drive gear (60) to drive the lower support shaft (331) to reciprocate.

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