A power distribution box with automatic door locking

Abstract

The application relates to the technical field of distribution boxes, and discloses a distribution box with automatic door closing and locking, which comprises a box body, an automatic locking mechanism arranged in the box body and used for automatically locking the door when the door is closed, a box door hinged to the outside of the box body, a monitoring mechanism, an insulation shielding box fixedly connected with the box door, a switching mechanism arranged between the automatic locking mechanism and the monitoring mechanism and used for linking the function switching of the monitoring mechanism with the opening and closing action of the box door, and the switching mechanism comprising a shaft rod, a circular-arc gear, a hook and a switching lever, wherein the shaft rod is rotationally connected with the box door. The monitoring mechanism function and the opening and closing action of the box door are accurately linked through the switching mechanism, the intelligent switching of the automatic door closing and locking and the monitoring state is realized, the automatic door closing and locking can be realized, the safety hidden danger caused by human negligence can be avoided, the monitoring mechanism function is automatically switched through the opening and closing action of the box door, and the anti-theft performance and the operation safety of the distribution box are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of distribution box technology, and specifically to a distribution box that automatically locks when the door is closed. Background Technology

[0002] Currently, the locking operation of distribution boxes generally relies on manual operation. This method is not only cumbersome and increases the time cost of daily maintenance, but also prone to human negligence in real-world scenarios, leaving the box door unsecured and creating opportunities for unauthorized intrusion. Furthermore, current distribution box designs have significant deficiencies in anti-theft functionality. Wiring and critical components inside the box are often maliciously cut or stolen due to a lack of effective protection, causing not only direct property damage but also potential regional power outages and even threats to public safety. Crucially, the existing door locking mechanism and anti-theft monitoring system are independent, lacking a functional linkage mechanism. This prevents the door closing action from automatically triggering the switching of anti-theft monitoring status, resulting in an inefficient overall protection system that fails to meet the urgent security and intelligent requirements of modern power facilities. Summary of the Invention

[0003] The purpose of this application is to provide a distribution box that automatically locks when the door is closed, which can realize automatic locking when the door is closed to avoid safety hazards caused by human negligence, and automatically switch the monitoring mechanism function through the opening and closing action of the box door, effectively improving the anti-theft performance and operational safety of the distribution box.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A distribution box that automatically locks when the door is closed, comprising: The box has an internal automatic locking mechanism for automatically locking the door when it is closed, and a door is hinged to the outside of the box. The monitoring unit includes an insulating shielded box, which is fixedly connected to the door of the enclosure. A switching mechanism is located between the automatic locking mechanism and the monitoring mechanism, and is used to link the function switching of the monitoring mechanism with the opening and closing of the door. The switching mechanism includes a shaft, a circular arc gear, a hook, and a switching lever. The shaft is rotatably connected to the door, the circular arc gear is fixedly connected to the shaft and is driven by the automatic locking mechanism, one end of the hook is fixedly connected to the shaft, and the other end abuts against the switching lever. A first conductive electrode and a second conductive electrode are provided in the insulating shielding box, which are used to switch different functions of the monitoring mechanism, respectively. A one-way drive component is provided between the switching lever and the first and second conductive electrodes.

[0005] Furthermore, the automatic locking mechanism includes a sliding plate, a male lock head, a push plate, a lock cylinder rotating rod, and a return spring. The sliding plate is slidably connected to the box door, the male lock head is fixedly connected to one end of the sliding plate, the push plate is fixedly connected to the sliding plate, and the lock cylinder rotating rod is rotatably connected to the box door. The lock cylinder rotating rod passes through the sliding plate. When unlocking, the lock cylinder rotating rod rotates and abuts against the push plate. The return spring is connected between the sliding plate and the box door. The inner wall of the box door is provided with a female buckle that matches the male lock head.

[0006] Furthermore, a toothed plate is provided at the top of the outer wall of the skateboard, and the toothed plate meshes with a circular arc gear.

[0007] Furthermore, the unidirectional drive assembly includes a first central rotating rod, which is rotatably connected to the inner wall of the insulating shielding box. A driven rotating wheel is fixedly connected to the outer side of the first central rotating rod. A dial wheel is fixedly connected to the top of the switching lever, and the dial wheel engages with the driven rotating wheel. A bracket is provided inside the insulating shielding box. A second central rotating rod is provided on one side of the first central rotating rod and rotatably connected to the bracket. A magnetic coupling is provided between the second central rotating rod and the first central rotating rod. A vertical rotating rod is rotatably connected inside the insulating shielding box. A bevel gear set is provided between the vertical rotating rod and the second central rotating rod. A column is fixedly connected inside the insulating shielding box. A pawl is rotatably connected to the top of the column. A ratchet adapted to the pawl is provided at the bottom of the vertical rotating rod.

[0008] Furthermore, both the first and second conductive electrodes are fixedly connected to the vertical rotating rod. The inner wall of the insulating shielding box is provided with a through groove that forms a closed loop with the first and second conductive electrodes. The first and second conductive electrodes are inserted into the corresponding through grooves to correspond to different functions.

[0009] Furthermore, the insulating shielding box is equipped with a sensor module and a monitoring module.

[0010] Furthermore, when the cabinet door is open, the monitoring module is in operation; when the cabinet door is closed, the sensor module is in operation to monitor changes in parameters inside the cabinet.

[0011] Furthermore, the slide plate has a groove that allows the lock cylinder lever to move.

[0012] The technical effects and advantages of this invention are as follows: This invention precisely links the monitoring mechanism function with the door opening and closing action through a switching mechanism, realizing automatic door locking when the door is closed and intelligent switching of monitoring status. It can realize automatic door locking when the door is closed to avoid safety hazards caused by human negligence, and automatically switch the monitoring mechanism function through the door opening and closing action, effectively improving the anti-theft performance and operational safety of the distribution box.

[0013] This invention uses a unidirectional drive component to ensure that the reciprocating motion of the automatic door locking mechanism can only switch functions in one direction. That is, the reset action of the male lock head drives the switching lever to move, which will not affect the switching of the monitoring mechanism's function. Furthermore, the monitoring function is synchronized with the opening of the door, so as to facilitate the monitoring and protection of the distribution box and to record data normally when staff are performing maintenance, thus meeting the usage requirements. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a distribution box with automatic door locking proposed in this invention; Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a partially enlarged structural diagram of a distribution box with automatic door locking proposed in this invention; Figure 4 This is a schematic diagram of the internal planar structure of the insulating shielding box of a distribution box that automatically locks when the door is closed, as proposed in this invention. Figure 5 This is a schematic diagram of the switching lever structure proposed in this invention.

[0015] In the picture: 1. Box body; 11. Female buckle; 12. Box door; 2. Automatic locking mechanism; 21. Slide plate; 22. Male lock head; 23. Push plate; 24. Lock cylinder rotating rod; 25. Return spring; 26. Tooth plate; 3. Monitoring mechanism; 31. Insulating shield box; 32. Sensor module; 33. Monitoring module; 34. Bracket; 4. Switching mechanism; 41. Shaft; 42. Circular arc gear; 43. Hook; 44. Switching lever; 441. Dial wheel; 45. First central rotating rod; 451. Driven rotating wheel; 46. Second central rotating rod; 461. Magnetic coupling; 47. Vertical rotating rod; 471. Bevel gear set; 472. First conductive electrode; 473. Second conductive electrode; 48. Column; 481. Pawl; 482. Ratchet. Detailed Implementation

[0016] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0017] This invention provides, for example Figures 1 to 5 As shown, a distribution box that automatically locks when the door is closed includes: The enclosure 1 contains an automatic locking mechanism 2 for automatically locking the door when closed. A door 12 is hinged to the outside of the enclosure 1. A monitoring mechanism 3 is also included, comprising an insulating shielding box 31 fixedly connected to the door 12. Furthermore, a switching mechanism 4 is provided between the automatic locking mechanism 2 and the monitoring mechanism 3, used to link the function switching of the monitoring mechanism 3 with the opening and closing action of the door 12. This switching mechanism 4 consists of a shaft 41, a circular arc gear 42, and... The device consists of a hook 43 and a switching lever 44. The shaft 41 is rotatably connected to the door 12. The circular arc gear 42 is fixedly connected to the shaft 41 and is connected to the automatic locking mechanism 2. One end of the hook 43 is fixedly connected to the shaft 41, and the other end abuts against the switching lever 44. The insulating shielding box 31 is provided with a first conductive electrode 472 and a second conductive electrode 473, which are used to switch the different functions of the monitoring mechanism 3. A one-way drive assembly is provided between the switching lever 44 and the first conductive electrode 472 and the second conductive electrode 473.

[0018] For ease of understanding, the following explains some key terms in this embodiment: Box 1 refers to the main structure of the distribution box, which is usually made of metal and is used to house and protect the internal electrical equipment. Box door 12 is a component that is hinged to box 1 and is used to open and close box 1 to enable access to or protection of the internal equipment.

[0019] The automatic locking mechanism 2 is a mechanical or electromechanical device whose function is to automatically complete the locking operation without manual intervention when the cabinet door 12 is closed, ensuring that the cabinet door 12 is in a locked state.

[0020] Monitoring unit 3 is a device used to sense and acquire environmental parameters inside or outside the distribution box, such as temperature, humidity, current, voltage, or abnormal intrusion information.

[0021] The insulating shielding box 31 is part of the monitoring mechanism 3. It is usually made of insulating material and is used to encapsulate and protect the sensitive electronic components of the monitoring mechanism 3, while providing electromagnetic shielding to ensure the accuracy of monitoring data and the stable operation of the equipment.

[0022] The switching mechanism 4 is a linkage device that automatically adjusts or switches the different working modes or functions of the monitoring mechanism 3 according to the opening and closing state of the door 12, so as to realize intelligent management of monitoring tasks.

[0023] Shaft 41 is a rotating component in the switching mechanism 4. One end of it is rotatably connected to the door 12 and can rotate as the door 12 opens and closes.

[0024] The circular arc gear 42 is a gear fixedly connected to the shaft 41. Its tooth profile is circular arc-shaped, and it can be connected to the automatic locking mechanism 2 to transmit the rotation of the shaft 41 to the automatic locking mechanism 2.

[0025] The hook 43 is a lever-type component in the switching mechanism 4. One end of it is fixedly connected to the shaft 41, and the other end abuts against the switching lever 44. It is used to drive the switching lever 44 when the shaft 41 rotates.

[0026] The switching lever 44 is a toggle component in the switching mechanism 4. It is driven by the hook 43 and can perform reciprocating or rotating motion, thereby controlling the first conductive electrode 472 and the second conductive electrode 473 through the unidirectional drive component.

[0027] The first conductive electrode 472 and the second conductive electrode 473 are conductive components disposed inside the insulating shielding box 31. They are connected to the external circuit to conduct or disconnect the circuit in different states, thereby switching the different functions of the monitoring mechanism 3.

[0028] A unidirectional drive assembly is a mechanical or electromechanical component that ensures that the drive switching action of the switching lever 44 on the first conductive electrode 472 and the second conductive electrode 473 is unidirectional, that is, it only generates drive in a specific direction or under specific conditions, while it does not generate drive or generates different drive effects when moving in the opposite direction.

[0029] This embodiment provides a power distribution box that automatically locks when the door is closed. Its core function is to realize the automatic locking of the power distribution box and the linkage switching of the monitoring mechanism functions.

[0030] Specifically, the enclosure 1 serves as the main structure of the distribution box, and its interior is configured to house electrical equipment. The outer side of the enclosure 1 is connected to the door 12 via a hinge structure. The opening and closing of the door 12 allows access to or closure of the interior space of the enclosure 1. Inside the enclosure 1, an automatic locking mechanism 2 is provided. This automatic locking mechanism 2 can be composed of a simple spring-loaded pin. When the door 12 is pushed to the closed position, the pin automatically extends under the action of the spring force, aligns with and inserts into the preset hole on the enclosure 1, thereby realizing the automatic locking of the door 12.

[0031] The monitoring mechanism 3 is configured to sense changes in the internal or external environment of the distribution box. The monitoring mechanism 3 may include a basic photoelectric sensor, which is installed on the inside of the box door 12 to detect the opening and closing status of the box door 12 and output a simple open / close signal. This basic sensor may only provide limited status information and cannot meet the complex monitoring needs of multiple environmental parameters. The monitoring mechanism 3 also includes an insulating shielding box 31, which may be made of ordinary plastic material to encapsulate and protect the electronic components of the monitoring mechanism 3 and prevent dust and moisture from entering. The insulating shielding box 31 is firmly fixed to the box door 12 by screws or adhesive.

[0032] The switching mechanism 4 is cleverly positioned between the automatic locking mechanism 2 and the monitoring mechanism 3. Its main function is to realize the linkage between the function switching of the monitoring mechanism 3 and the opening and closing action of the door 12. The switching mechanism 4 includes a shaft 41, one end of which passes through the door 12 and is rotatably connected to the door 12, so that the shaft 41 can rotate synchronously with the rotation of the door 12. The circular arc gear 42 is fixedly connected to the shaft 41. The circular arc gear 42 can be fixed to the shaft 41 by key connection and is connected to the automatic locking mechanism 2 for transmission. For example, the rotation of the door 12 can be transmitted to the automatic locking mechanism 2 through a simple rack meshing with the circular arc gear 42 to drive it to complete the locking or unlocking action. This rack and pinion transmission method may have a certain transmission gap.

[0033] In addition, the switching mechanism 4 also includes a hook 43 and a switching lever 44. One end of the hook 43 is fixedly connected to the shaft 41 by welding, and the other end abuts against the side of the switching lever 44. When the shaft 41 rotates with the door 12, the hook 43 pushes or moves the switching lever 44, causing it to move. The movement of the switching lever 44 then acts on the first conductive electrode 472 and the second conductive electrode 473 inside the insulating shield box 31 through the one-way drive assembly. The first conductive electrode 472 and the second conductive electrode 473 can be made of simple metal contacts. When the switching lever 44 moves to a specific position under the action of the one-way drive assembly, it will close the corresponding contact, thereby switching the different functions of the monitoring mechanism 3. This simple contact switching method may face problems of poor contact or wear. The one-way drive assembly can be a basic ratchet and pawl mechanism to ensure that the switching lever 44 can drive the first conductive electrode 472 and the second conductive electrode 473 to switch in the specific direction of opening or closing of the door 12, while no drive or different drive effects are generated when moving in the opposite direction.

[0034] The distribution box proposed in this application automatically locks when the box door 12 is closed by setting an automatic locking mechanism 2, which effectively solves the cumbersome problem of manual locking required for traditional distribution boxes. At the same time, the linkage design of the monitoring mechanism 3 and the switching mechanism 4 enables the monitoring function to automatically switch according to the opening and closing state of the box door 12. For example, anti-theft and maintenance monitoring is activated when the box door 12 is open, and monitoring of the internal environmental parameters of the distribution box is activated when the box door 12 is closed, thereby improving the intelligent management level and security protection capability of the distribution box and effectively reducing the risk of theft of internal equipment.

[0035] In some of the embodiments described above in this application, a distribution box is provided with an automatic locking mechanism inside, which is used to automatically lock the door when it is closed. However, in practical applications, how to ensure that the automatic locking mechanism can reliably achieve automatic locking when the box door is closed, and provide a convenient and stable manual unlocking method when needed, while ensuring the firmness of the lock, is a technical problem that needs to be further solved.

[0036] In this regard, it is further proposed that the automatic locking mechanism 2 includes a sliding plate 21, a male lock head 22, a push plate 23, a lock cylinder rotating rod 24, and a return spring 25. The sliding plate 21 is slidably connected to the door 12, the male lock head 22 is fixedly connected to one end of the sliding plate 21, the push plate 23 is fixedly connected to the sliding plate 21, the lock cylinder rotating rod 24 is rotatably connected to the door 12, and the lock cylinder rotating rod 24 passes through the sliding plate 21. When unlocking, the lock cylinder rotating rod 24 rotates and abuts against the push plate 23. The return spring 25 is connected between the sliding plate 21 and the door 12. The inner wall of the door 12 is provided with a female buckle 11 that is compatible with the male lock head 22.

[0037] Specifically, the sliding plate 21 is the core moving component of the automatic locking mechanism 2. It is typically slidably connected to the door 12 via a guide rail or groove to achieve linear motion. The sliding plate 21 carries the male lock head 22 and moves during locking and unlocking. The male lock head 22 is the component that actually performs the locking function and is typically fixedly connected to one end of the sliding plate 21. The shape of the male lock head 22 can be designed as a wedge, hook, or column to adapt to and reliably engage with the female latch 11 provided on the inner wall of the door 12. The push plate 23 is fixedly connected to the sliding plate 21 and serves as the force-bearing surface for the lock cylinder rotating rod 24. When the lock cylinder rotating rod 24 rotates, it abuts against the push plate 23, thereby converting the rotation of the lock cylinder rotating rod 24 into linear motion of the sliding plate 21, thus achieving the unlocking operation. The lock cylinder rotating rod 24 is rotatably connected to the door 12 and passes through the sliding plate 21. 24 is the input component for manual unlocking, which is usually driven to rotate by a key or other tool. When it rotates, it moves the slide plate 21 by abutting against the push plate 23, thereby separating the male lock head 22 from the female latch 11. The return spring 25 is connected between the slide plate 21 and the door 12 to provide preload or return force. This spring can be a compression spring or a tension spring. Its function is to ensure that the slide plate 21 can automatically return to the preset position after automatic locking or unlocking, thereby enhancing the reliability of locking and the stability of automatic locking. The inner wall of the door 12 is provided with a female latch 11 that is compatible with the male lock head 22. The female latch 11 is a fixing component that cooperates with the male lock head 22 and is usually installed on the inner wall of the box 1 or the edge of the door 12. Its shape is complementary to the male lock head 22 to ensure that it can fit tightly when the male lock head 22 is inserted to form a firm lock.

[0038] Through the above technical solution, when the box door 12 is closed, the male lock head 22 automatically engages with the female latch 11 on the inner wall of the box door 12 under the push of the return spring 25, thereby realizing the automatic locking of the distribution box without manual intervention, improving the convenience and safety of operation. At the same time, when it is necessary to open the box door 12, by rotating the lock cylinder rod 24, the lock cylinder rod 24 will abut against the push plate 23, overcome the elastic force of the return spring 25, drive the slide plate 21 to slide, so that the male lock head 22 disengages from the female latch 11, thereby realizing manual unlocking. This design not only ensures the reliability of automatic locking, but also provides a stable and easy-to-operate manual unlocking method. The presence of the return spring 25 ensures that the male lock head 22 can be continuously pressured in the locked state, making the lock more secure and effectively preventing accidental unlocking caused by vibration or other external factors. The automatic locking mechanism 2, together with the opening and closing action of the box door 12 and the function switching of the monitoring mechanism 3, forms a complete and efficient distribution box management system.

[0039] In some of the above embodiments, a distribution box with automatic door locking is proposed. Its automatic locking mechanism 2 realizes the automatic door locking function through components such as slide plate 21 and male lock head 22, and is connected to the arc gear 42 in the switching mechanism 4 for transmission. However, in order to achieve reliable, efficient and compact transmission between the arc gear 42 and the slide plate 21 in the automatic locking mechanism 2, additional complex linkage mechanisms may be required or there may be a risk of transmission instability, which will affect the response speed and working accuracy of the automatic locking mechanism 2.

[0040] In this regard, this application further proposes that a toothed plate 26 be provided at the top of the outer wall of the skateboard 21, and that the toothed plate 26 meshes with the circular arc gear 42.

[0041] The toothed plate 26 is a mechanical component with a series of toothed structures. Its function is to provide a precise mechanical interface for meshing and transmission with another gear (i.e., the circular arc gear 42). The toothed plate 26 can be fixed to the top of the outer wall of the slide plate 21 as an independent component by welding, bolting or other means, or the toothed structure can be directly machined into the corresponding position of the slide plate 21 by integral molding. Its design should ensure that the toothed structure matches the toothed structure of the circular arc gear 42 to achieve smooth and reliable power transmission.

[0042] Through the above technical solution, a toothed plate 26 is set at the top of the outer wall of the slide plate 21 and directly meshes with the arc gear 42, thereby providing a direct, efficient and reliable mechanical transmission method between the arc gear 42 and the slide plate 21 in the automatic locking mechanism 2. This gear-rack meshing transmission ensures that the locking or unlocking action signal is transmitted to the monitoring mechanism 3. Compared with other indirect or friction transmission methods, this solution significantly improves the stability and accuracy of the transmission, reduces energy loss and mechanical wear during the transmission process, simplifies the mechanism design, makes the structure of the entire automatic locking mechanism 2 more compact and reliable, and effectively improves the overall safety and service life of the distribution box.

[0043] In some of the above embodiments, the function switching of the monitoring mechanism of the distribution box is linked to the opening and closing of the box door. However, in implementing this linkage, how to ensure the accuracy, unidirectionality and reliability of the function switching, so as to avoid the monitoring function being switched incorrectly or the mechanism being damaged due to the uncertainty of the box door movement, is a technical problem that needs to be solved.

[0044] In response, a specific structure for the unidirectional drive component was further proposed, referring to... Figure 4The unidirectional drive assembly includes a first central rotating rod 45, which is rotatably connected to the inner wall of the insulating shielding box 31 as the starting component of the transmission chain. A driven rotating wheel 451 is fixedly connected to the outer side of the first central rotating rod 45 to receive the drive from the switching lever 44. A dial wheel 441 is fixedly connected to the top of the switching lever 44, and the dial wheel 441 engages with the driven rotating wheel 451, thereby converting the action of the switching lever 44 into the rotation of the driven rotating wheel 451 and the first central rotating rod 45. A bracket 34 is provided inside the insulating shielding box 31 to support the subsequent transmission components. A second central rotating rod 46 is provided on one side of the first central rotating rod 45 and rotatably connected to the bracket 34 as an intermediate transmission shaft. The second central rotating rod 46 is connected to the first central rotating rod. A magnetic coupling 461 is provided between 45 to transmit torque through magnetic force, achieving non-contact transmission and providing overload protection. A vertical rotating rod 47 is also rotatably connected inside the insulating shielding box 31. It is the actuator that ultimately drives the first conductive electrode 472 and the second conductive electrode 473 to switch functions. A bevel gear set 471 is provided between the vertical rotating rod 47 and the second central rotating rod 46 to change the transmission direction and axis. In addition, a column 48 is fixedly connected inside the insulating shielding box 31. A pawl 481 is rotatably connected to the top of the column 48. A ratchet 482 adapted to the pawl 481 is provided at the bottom of the vertical rotating rod 47. The cooperation between the pawl 481 and the ratchet 482 ensures that the vertical rotating rod 47 can only rotate in one direction and step by step.

[0045] Specifically, the unidirectional drive assembly is the core component for achieving precise switching of the monitoring mechanism 3's functions. The first central rotating rod 45 is rotatably connected to the inner wall of the insulating shielding box 31 via bearings or bushings to ensure smooth rotation. The driven rotating wheel 451 can be designed with a specific toothed or protruding structure to reliably engage with the dial wheel 441. The dial wheel 441 typically has a structure that matches the driven rotating wheel 451. When the switching lever 44 moves, the dial wheel 441 actuates the driven rotating wheel 451, thereby driving the first central rotating rod 45 to rotate. The bracket 34 is typically made of high-strength material and is securely fixed inside the insulating shielding box 31 by screws or riveting, providing stable rotation for the second central rotating rod 46. The dynamic support and magnetic coupling 461 consist of two magnetic half-couplings that transmit torque through magnetic coupling. Their non-contact characteristics reduce wear and allow slippage when the transmission chain is obstructed, thus protecting the mechanism from damage. The bevel gear set 471, typically composed of a pair of bevel gears, converts the horizontal rotation of the second central rotating rod 46 into the vertical rotation of the vertical rotating rod 47, achieving a 90-degree angle transmission. The column 48 provides a stable pivot point for the pawl 481. The pawl 481 typically has an inclined surface; when the ratchet 482 rotates forward, the pawl 481 can slide over the ratchet teeth; when the ratchet 482 attempts to rotate in the opposite direction, the pawl 481 engages with the ratchet teeth, preventing reverse rotation and thus achieving unidirectional drive. The ratchet 482 has a series of evenly distributed teeth that precisely mesh with the pawl 481, ensuring that the vertical rotating rod 47 rotates at a preset step distance.

[0046] Through the above technical solution, the action of the switching lever 44 is converted into the rotation of the first central lever 45 by the engagement of the lever 441 and the driven rotating wheel 451. The magnetic coupling 461 transmits torque between the first central lever 45 and the second central lever 46, realizing non-contact transmission and providing overload protection. When the male lock head 22 is reset, it will not affect the rotation of the vertical lever 47. Subsequently, the bevel gear set 471 transmits the rotation of the second central lever 46 and converts it into the rotation of the vertical lever 47. The key is that the ratchet 482 at the bottom of the vertical lever 47 is rotatably connected to the pawl 48 at the top of the column 48. The combination of these components forms a unidirectional stepping drive mechanism. When the door 12 opens or closes, the switching lever 44 drives the entire transmission chain. The cooperation between the pawl 481 and the ratchet 482 ensures that the vertical rotating rod 47 can only make precise stepping rotations in the preset direction, effectively preventing reverse movement or uncertain displacement. This allows the first electrode 472 and the second electrode 473 to accurately and stably switch to different functional states of the monitoring mechanism 3, avoiding erroneous switching of monitoring functions caused by the uncertainty of the door 12's movement. This significantly improves the reliability and accuracy of the power distribution box's monitoring function. At the same time, the magnetic coupling 461 also provides effective protection for the mechanism.

[0047] In some of the above embodiments, the monitoring mechanism 3 achieves switching between different functions through the first conductive electrode 472 and the second conductive electrode 473. However, in practical applications, ensuring that these conductive electrodes can stably and reliably form a closed loop with the external circuit during the switching process, while avoiding poor contact, short circuits, or functional misjudgments caused by mechanical movement or environmental factors, is a technical problem that needs to be solved. Especially in environments such as the distribution box 1 where electrical safety and reliability requirements are high, precise control and insulation protection of the conductive electrodes are crucial.

[0048] In this regard, this application further proposes that the first conductive electrode 472 and the second conductive electrode 473 are both fixedly connected to the vertical rotating rod 47, and the inner wall of the insulating shielding box 31 is provided with a through groove that forms a closed loop with the first conductive electrode 472 and the second conductive electrode 473. The first conductive electrode 472 and the second conductive electrode 473 are inserted into the corresponding through grooves to correspond to different functions.

[0049] Specifically, the first conductive electrode 472 and the second conductive electrode 473 are components used to establish an electrical connection, and are usually made of materials with good conductivity, such as copper or silver alloys. The vertical rotating rod 47 is a key transmission component in the switching mechanism 4, and its rotational movement is used to drive the function switching. Fixing the conductive electrode to the vertical rotating rod 47 can ensure that the movement of the conductive electrode is synchronized and precise with the rotational movement of the vertical rotating rod 47. This fixed connection can be achieved in various ways, such as by welding, bolting, interference fit, or integral molding. For example, mounting holes or slots can be preset on the vertical rotating rod 47, and then the conductive electrode can be inserted and fixed, or the conductive electrode can be mechanically connected to the rotating rod 47 with insulating material while ensuring electrical isolation. This connection method allows the conductive electrode to move precisely to the preset position as the vertical rotating rod 47 rotates, thereby achieving precise control of function switching.

[0050] The insulating shielding box 31 is a component of the monitoring mechanism 3, used to insulate and shield internal electrical components. The through-slots are openings or channels formed on the inner wall of the insulating shielding box 31 that mate with the conductive electrodes. These through-slots provide precise insertion positions and guidance for the first conductive electrode 472 and the second conductive electrode 473, and also serve as contact points for external circuits, forming a closed loop with the conductive electrodes. Conductive contacts or conductive sheets can be pre-embedded in the inner wall of the through-slots. When the conductive electrodes are inserted, they contact these contacts, thus completing the circuit connection. The design of the through-slots should take into account the shape, size, and insertion depth of the conductive electrodes to ensure reliable contact and a certain degree of self-cleaning ability to prevent dust or oxide layers from affecting conductivity. Furthermore, the material and structure of the through-slots should ensure sufficient insulation protection when the conductive electrodes are not inserted or are partially inserted, preventing accidental short circuits.

[0051] "Inserting into the corresponding through slot" refers to the guide electrode moving to a specific through slot pre-set on the inner wall of the insulating shield box 31 under the drive of the vertical rotating rod 47. "Corresponding to different functions" means that by combining and connecting the guide electrode with different through slots, different working modes or functions of the monitoring mechanism 3 can be activated or switched. This design achieves the switching of electrical functions through the switching of mechanical positions. For example, when the first guide electrode 472 is inserted into the first through slot, the operating state of the monitoring module 33 may be activated; when the second guide electrode 473 is inserted into the second through slot, the operating state of the sensor module 32 may be activated. This switching method has a clear physical position correspondence, is easy to implement and detect, and can achieve multiple function combinations by setting different circuit connection points inside the through slot. For example, the through slot can be connected to different power lines, signal acquisition circuits or control circuits, so that when the guide electrode is inserted, the corresponding circuit is connected to realize different functions such as monitoring, alarm, and data transmission. Compared with pure electronic switching, this mechanical switching method may have higher reliability and anti-interference ability in some application scenarios.

[0052] By fixing the first conductive electrode 472 and the second conductive electrode 473 to the vertical rotating rod 47 and cooperating with the through slots opened in the inner wall of the insulating shield box 31, this application provides a compact and reliable function selection mechanism. When the box door 12 is opened or closed, the vertical rotating rod 47 is driven to rotate by the switching mechanism 4, thereby driving the conductive electrode to be precisely inserted into or pulled out of the corresponding through slot. This physical insertion connection method can ensure that the conductive electrode and the circuit contacts inside the through slot form a stable and reliable closed loop, effectively avoiding the problems of poor contact, vibration or oxidation that may occur with traditional sliding contacts. At the same time, the insulation design of the insulating shield box 31 and the through slot can prevent accidental short circuits or arcing during the switching process to the greatest extent, improving the electrical safety and operational stability of the distribution box 1. In addition, by inserting different conductive electrodes into different through slots to correspond to different functions, the function switching logic is clear, easy to maintain and troubleshoot, thereby significantly improving the reliability and safety of the monitoring mechanism 3 in different working modes.

[0053] To further optimize the monitoring capabilities of the aforementioned distribution box 1, this application provides a sensor module 32 and a monitoring module 33 on the insulating shielding box 31. The sensor module 32 is a device for detecting and sensing changes in internal or external environmental parameters of the distribution box 1. Its function is to collect various physical or chemical quantities in the operating environment of the distribution box 1 and convert them into processable electrical signals, thereby providing real-time data support for the operating status and safety status of the distribution box 1. Specifically, the sensor module 32 may include, but is not limited to, temperature sensors (e.g., thermistors, thermocouples), humidity sensors (e.g., humidity-sensitive resistors, capacitive humidity sensors), smoke sensors, gas leak sensors (e.g., sensors for detecting SF6 gas leaks), vibration sensors, or intrusion sensors (e.g., infrared sensors, microwave sensors). These sensors are selected and configured according to actual monitoring needs. For example, when it is necessary to monitor whether the internal temperature of the distribution box 1 is too high, a high-precision temperature sensor can be used; when it is necessary to monitor whether there is abnormal vibration in the box 1, an accelerometer can be used. The output signal of the sensor module 32 can be directly or after preprocessing and transmitted to the control unit for analysis. At the same time, the monitoring module 33 is a device for real-time video or image monitoring of the operating status and environmental conditions of the distribution box 1. Its function is to provide intuitive visual information so as to remotely view the on-site situation of the distribution box 1, record the process of events, and carry out security precautions. The monitoring module 33 is usually composed of one or more cameras (such as wide-angle cameras, infrared night vision cameras) and related image acquisition and processing units and data transmission interfaces. The cameras can be fixedly installed in an appropriate position in the insulating shielding box 31 to obtain the best monitoring angle, or the angle can be adjusted by an adjustable bracket. The video or image data collected by the monitoring module 33 can be compressed and encoded and transmitted to the remote monitoring center or mobile terminal through wired or wireless networks to realize remote real-time monitoring and historical data backtracking.

[0054] By setting sensor module 32 and monitoring module 33 on the insulating shielding box 31, the aforementioned monitoring mechanism 3 is no longer merely a carrier for function switching, but possesses the ability of active perception and visual monitoring. Sensor module 32 can acquire in real time the internal environmental parameters of the distribution box 1 (such as temperature, humidity, gas concentration, etc.) or external abnormalities (such as vibration, intrusion), while monitoring module 33 can provide intuitive video images, enabling managers to remotely understand the actual operating status of the distribution box 1 and its surrounding environment. This configuration greatly improves the intelligent monitoring level of the distribution box 1, realizing comprehensive perception of the equipment's operating status and timely response to safety events. Combined with the aforementioned switching mechanism 4, when the box door 12 is in different states, the functions of sensor module 32 and monitoring module 33 can be intelligently activated or switched. For example, when the box door 12 is closed, the focus is on monitoring internal parameters, and when the box door 12 is open, the focus is on external safety monitoring, thereby optimizing the utilization of monitoring resources, improving the targeting and efficiency of monitoring, effectively preventing potential faults and safety hazards, and ensuring the safe and stable operation of the distribution box 1.

[0055] In practical applications of distribution boxes, to ensure the safe operation of equipment and the stability of the internal environment, it is usually necessary to monitor the internal parameters of the box and monitor the external conditions when the box door is open. However, if the monitoring and control functions are always active, it will not only cause unnecessary energy consumption, but may also reduce the specificity of the system response due to information redundancy. For example, when the box door is open for maintenance or inspection, continuous monitoring of internal parameters may not be the primary task, while monitoring of the external environment is more critical. Conversely, when the box door is closed and operating normally, abnormal changes in internal parameters are the focus of attention. Therefore, how to intelligently and selectively activate the corresponding monitoring or control functions according to different box door states to optimize resource utilization and improve system efficiency is a technical problem that needs to be solved in this field.

[0056] In response, this application further proposes a distribution box with automatic locking when the door is closed. When the door 12 is open, the monitoring module 33 is in operation, and when the door 12 is closed, the sensor module 32 is in operation to monitor changes in parameters inside the box 1.

[0057] Specifically, when the door 12 is opened, the monitoring module 33 is activated and put into operation. The monitoring module 33 typically refers to a device used to monitor the external environment of the distribution box in real time. For example, it can be one or more cameras to capture personnel activities or abnormal situations near the door 12; it can also be an infrared sensor or a door magnetic sensor to detect unauthorized approach or abnormal opening of the door 12. When the door 12 is opened, the system triggers the activation of the monitoring module 33 by detecting the state of the door 12 (e.g., through a mechanical switch, photoelectric sensor, or Hall sensor linked to the door 12), so that it enters the working mode and begins to collect, record, or transmit external environmental data, thereby achieving real-time monitoring of the external safety status of the distribution box.

[0058] Correspondingly, when the door 12 is closed, the sensor module 32 is activated and in operation. The sensor module 32 typically refers to a set of devices used to monitor the internal environmental parameters of the distribution box 1 in real time. This may include, but is not limited to, temperature sensors to monitor whether the internal temperature of the box 1 is too high; humidity sensors to monitor whether the internal humidity exceeds the safe range; smoke sensors to detect fire hazards; gas sensors to monitor the concentration of harmful gases; and current and voltage sensors to monitor electrical parameters. When the door 12 is closed, the system activates the sensor module 32 by detecting the state of the door 12, putting it into working mode, continuously collecting various parameters inside the box 1, and transmitting the data to the control unit for analysis, so as to promptly detect and handle abnormal internal environmental conditions and ensure the stable operation of the equipment inside the distribution box. This function aims to continuously or periodically measure and record various physical or electrical quantities inside the distribution box 1 through the sensor module 32. Changes in these parameters, such as increased temperature, excessive humidity, smoke, or abnormal electrical parameters, are often early warning signals of equipment failure, safety hazards, or environmental anomalies. By monitoring the changing trends of these parameters in real time, potential problems can be identified in a timely manner, preventive measures can be taken, thereby avoiding equipment damage and accidents, and extending the service life of the distribution box and its internal equipment.

[0059] Through the above technical solution, this application realizes intelligent switching of the monitoring and surveillance functions of the distribution box, effectively solving the problems of unreasonable resource allocation and high energy consumption in traditional distribution box monitoring systems under different working states. Specifically, when the box door 12 is open, the system automatically activates the monitoring module 33, making it focus on monitoring the external environment, such as recording personnel operations and preventing illegal intrusion, thereby providing necessary external security during maintenance or inspection. At the same time, when the box door 12 is closed, the system automatically activates the sensor module 32, making it focus on monitoring the internal parameters of the box 1, such as temperature, humidity, and smoke, ensuring the safe and stable operation of internal equipment in unattended conditions. This mechanism of switching functions according to the opening and closing state of the box door 12 avoids unnecessary simultaneous operation of modules, significantly reduces the overall energy consumption of the system, and extends the service life of sensors and monitoring equipment. In addition, by linking the monitoring and surveillance functions with the opening and closing action of the box door 12, the system can more accurately focus on the most critical monitoring or surveillance tasks, improving the pertinence and effectiveness of information acquisition, thereby enhancing the overall intelligent management level and operational reliability of the distribution box.

[0060] In some of the above embodiments, the automatic locking mechanism 2 realizes the automatic locking and unlocking functions of closing the door through components such as the sliding plate 21, the male lock head 22, the push plate 23, and the lock cylinder rotating rod 24. Among them, the lock cylinder rotating rod 24 needs to pass through the sliding plate 21 and rotate to abut against the push plate 23 to complete the unlocking operation. However, if the lock cylinder rotating rod 24 simply passes through the sliding plate 21, its rotation process may be hindered by the sliding plate 21, affecting the smoothness and reliability of the unlocking action, and may even lead to wear between components.

[0061] Furthermore, it is proposed that the slide plate 21 has a slot that allows the lock cylinder rotating rod 24 to move. This slot is an elongated opening on the slide plate 21 body, and its main function is to provide a movement space for the lock cylinder rotating rod 24, ensuring that the lock cylinder rotating rod 24 can avoid interference with the slide plate 21 body when performing rotation operation.

[0062] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A distribution box that automatically locks when the door is closed, characterized in that, include: The box (1) is equipped with an automatic locking mechanism (2) inside, which is used to automatically lock the door when the door is closed. The box (1) is hinged to the outside of the box (1). The monitoring mechanism (3) includes an insulating shielding box (31) which is fixedly connected to the door (12). The switching mechanism (4) is located between the automatic locking mechanism (2) and the monitoring mechanism (3) and is used to link the function switching of the monitoring mechanism (3) with the opening and closing action of the door (12). The switching mechanism (4) includes a shaft (41), a circular arc gear (42), a hook (43) and a switching lever (44). The shaft (41) is rotatably connected to the door (12). The circular arc gear (42) is fixedly connected to the shaft (41) and is connected to the automatic locking mechanism (2) in a transmission manner. One end of the hook (43) is fixedly connected to the shaft (41) and the other end abuts against the switching lever (44). The insulating shielding box (31) is provided with a first conductive electrode (472) and a second conductive electrode (473), which are used to switch the different functions of the monitoring mechanism (3) respectively. A one-way drive assembly is provided between the switching lever (44) and the first conductive electrode (472) and the second conductive electrode (473).

2. A distribution box with automatic locking when the door is closed, as described in claim 1, characterized in that, The automatic locking mechanism (2) includes a sliding plate (21), a male lock head (22), a push plate (23), a lock cylinder rotating rod (24), and a return spring (25). The sliding plate (21) is slidably connected to the box door (12). The male lock head (22) is fixedly connected to one end of the sliding plate (21). The push plate (23) is fixedly connected to the sliding plate (21). The lock cylinder rotating rod (24) is rotatably connected to the box door (12), and the lock cylinder rotating rod (24) passes through the sliding plate (21). When unlocking, the lock cylinder rotating rod (24) rotates and abuts against the push plate (23). The return spring (25) is connected between the sliding plate (21) and the box door (12). The inner wall of the box door (12) is provided with a female buckle (11) that is compatible with the male lock head (22).

3. A distribution box with automatic locking when the door is closed, as described in claim 2, characterized in that, The top of the outer wall of the slide plate (21) is provided with a toothed plate (26), which meshes with the circular arc gear (42).

4. A distribution box with automatic locking when the door is closed, as described in claim 1, characterized in that, The unidirectional drive assembly includes a first central rotating rod (45), which is rotatably connected to the inner wall of the insulating shielding box (31). A driven rotating wheel (451) is fixedly connected to the outer side of the first central rotating rod (45). A dial wheel (441) is fixedly connected to the top of the switching lever (44), and the dial wheel (441) is engaged with the driven rotating wheel (451). A bracket (34) is provided inside the insulating shielding box (31). A second central rotating rod (46) is provided on one side of the first central rotating rod (45) and rotatably connected to the bracket (34). The second central rotating rod (46) and the first central rotating rod (45) are provided with a magnetic coupling (461). The insulating shield box (31) is rotatably connected to a vertical rotating rod (47). A bevel gear set (471) is provided between the vertical rotating rod (47) and the second central rotating rod (46). A column (48) is fixedly connected inside the insulating shield box (31). A pawl (481) is rotatably connected to the top of the column (48). A ratchet (482) that matches the pawl (481) is provided at the bottom of the vertical rotating rod (47).

5. A distribution box with automatic locking when the door is closed, as described in claim 1, characterized in that, The first conductive electrode (472) and the second conductive electrode (473) are both fixedly connected to the vertical rotating rod (47). The inner wall of the insulating shield box (31) is provided with a through groove that forms a closed loop with the first conductive electrode (472) and the second conductive electrode (473). The first conductive electrode (472) and the second conductive electrode (473) are inserted into the corresponding through grooves to correspond to different functions.

6. A distribution box with automatic locking when the door is closed, as described in claim 1, characterized in that, The insulating shielding box (31) is equipped with a sensor module (32) and a monitoring module (33).

7. A distribution box with automatic locking when the door is closed, as described in claim 1, characterized in that, When the door (12) is open, the monitoring module (33) is in operation. When the door (12) is closed, the sensor module (32) is in operation and is used to monitor the changes in parameters inside the box (1).

8. A distribution box with automatic locking when the door is closed, as described in claim 1, characterized in that, The slide plate (21) has a groove that allows the lock cylinder rotating rod (24) to move.

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