Hinge and electric box

Abstract

The utility model provides a hinge and an electric box. The hinge comprises two hinge pieces and a connecting piece, the two hinge pieces are rotationally connected to the rotating pin; the reset elastic piece is arranged between the rotating pin and the two hinge pieces, the reset elastic piece is provided with two torque arms, and the two torque arms are used for abutting against the two hinge pieces correspondingly so that the two hinge pieces can rotate to a first angle; the monitoring assembly is arranged on the hinge pieces and connected to the torque arms corresponding to the hinge pieces, and the monitoring assembly is used for conducting electricity or cutting off electricity when the two hinge pieces rotate to the first angle. When the two hinge pieces are not located at the first angle, the reset elastic piece can rebound, the two torsion arms abut against the two hinge pieces correspondingly so that the two hinge pieces can rotate to the first angle, feedback is conducted through the electricity conduction or power-off state of the monitoring assembly, and whether the two hinge pieces rotate to the first angle or not can be indicated.

Description

Technical Field

[0001] This application relates to the technical field of hinges, and particularly to a hinge and electrical box. Background Technology

[0002] Currently, automated machining equipment such as CNC machine tools are typically equipped with an electrical control box. This box consists of a housing and a door. Electronic components are housed inside the box, and the door is hinged to the housing. The door opens and closes by rotating its hinges. When the door is closed, it shields the electronic components from external contact. When the door is open, it allows the user to inspect and maintain the electronic components.

[0003] However, in actual production, the cabinet door may automatically rotate and open due to factors such as machine tool vibration or accidental touch by the user, posing a safety hazard. Utility Model Content

[0004] In view of the above, it is necessary to provide a hinge and electrical box to improve equipment safety.

[0005] The first aspect of this application provides a hinge, comprising: two hinge pieces; a rotating pin, the two hinge pieces being rotatably connected to the rotating pin respectively; a reset spring member disposed between the rotating pin and the two hinge pieces, the reset spring member having two torque arms, the two torque arms being used to respectively abut against the two hinge pieces, so that the two hinge pieces rotate to a first angle; and a monitoring component disposed on the hinge pieces and connected to the torque arms corresponding to the hinge pieces, the monitoring component being used to conduct electricity or de-energize when the two hinge pieces rotate to the first angle.

[0006] In some embodiments, the monitoring component includes a fixed contact and a movable contact, the fixed contact being fixed to a hinge piece and the movable contact being fixed to a torque arm; wherein, when the two hinge pieces rotate from a first angle to a second angle, the torque arm elastically contracts and causes the movable contact to move away from the fixed contact; when the two hinge pieces rotate from the second angle to the first angle, the torque arm restores its elastic deformation and causes the movable contact to move towards the fixed contact.

[0007] In some embodiments, the monitoring component further includes a resilient conductive element, a first end of which is fixed and electrically connected to a fixed contact; when the two hinges are rotated from a second angle to a first angle, the second end of the resilient conductive element contacts a movable contact; when the two hinges are rotated from the first angle to the second angle, the second end of the resilient conductive element separates from the movable contact.

[0008] In some embodiments, the hinge piece is provided with a mounting groove, and the fixed contact, the elastic conductive element and the movable contact are all disposed in the mounting groove.

[0009] In some embodiments, the reset elastic member further includes a winding portion, which is provided with a rotating pin wound around it, and the ends of the two torque arms away from the monitoring component are respectively connected to the winding portion.

[0010] In some embodiments, an accommodating space is formed between two hinge pieces; the hinge pieces are also provided with positioning grooves, which are connected to the mounting groove and the accommodating space; the winding portion is disposed within the accommodating space, and the torque arm is disposed within the positioning groove corresponding to the hinge piece.

[0011] In some embodiments, a locking assembly is further included, which includes a snap-fit ​​member and a limiting member; one of the hinge pieces is defined as a first hinge piece and the other hinge piece as a second hinge piece, the limiting member is disposed on the first hinge piece and the snap-fit ​​member is disposed on the second hinge piece; when the first hinge piece and the second hinge piece rotate from a first angle to a second angle, the limiting member and the snap-fit ​​member engage to position the first hinge piece and the second hinge piece at the second angle.

[0012] In some embodiments, the latching member is provided with a latching block, and the side of the limiting member is provided with a limiting card, and the limiting card is provided with a limiting hole; when the first hinge piece and the second hinge piece rotate from a first angle to a second angle, the latching block engages with the limiting hole.

[0013] In some embodiments, the snap-fit ​​component is provided with a receiving groove, the snap-fit ​​block is at least partially received in the receiving groove, and a limiting elastic member is provided in the receiving groove; the surface of the snap-fit ​​component is provided with a through hole, the through hole is connected to the receiving groove, and the limiting elastic member abuts against the end of the snap-fit ​​block away from the through hole, so that the other end of the snap-fit ​​block can be exposed in the through hole.

[0014] The second aspect of this application provides an electrical box, which includes a box door, a box body, and a hinge provided in the first aspect. One of the hinge pieces is defined as a first hinge piece, and the other hinge piece is defined as a second hinge piece. The first hinge piece is fixed to the box door, and the second hinge piece is fixed to the box body.

[0015] The hinges and electrical box provided in this application allow the reset spring to spring back when the two hinge pieces are not at the first angle. Two torque arms then hold the two hinge pieces together, causing them to rotate to the first angle. Feedback from the monitoring component's electrical conductivity or de-energization status indicates whether the hinge pieces have rotated to the first angle. Thus, in actual production, if machine tool vibration, accidental user touch, or the user forgets to close the door, causing it to remain open, the reset spring will automatically rotate the door to the closed position, improving equipment safety. Simultaneously, the monitoring component allows users to directly observe the door's open / closed status or remotely obtain it via communication equipment. This is particularly beneficial when there are many pieces of equipment on-site, facilitating collective troubleshooting, management, and reducing safety hazards. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the electrical box provided in this application when the box door is closed.

[0017] Figure 2 This is a structural diagram of the electrical box provided in this application when the box door is open.

[0018] Figure 3 A schematic diagram of the hinge provided in this application at a first angle.

[0019] Figure 4 A schematic diagram of the structure of the first hinge piece and the second hinge piece provided in this application at a first angle.

[0020] Figure 5 A schematic diagram of the structure of the first hinge piece and the second hinge piece provided in this application at a second angle.

[0021] Figure 6 Exploded view of the first hinge piece, the second hinge piece, the rotating pin, and the return spring provided for this application.

[0022] Figure 7 This is a schematic diagram of the monitoring component provided in this application.

[0023] Figure 8 A schematic diagram of the first monitoring component provided in this application changing from a power-off state to a power-conducting state.

[0024] Figure 9 A schematic diagram of the second monitoring component provided in this application changing from a power-off state to a power-conducting state.

[0025] Figure 10 This is a schematic diagram of the internal structure of the snap-fit ​​connector provided in this application.

[0026] Explanation of main component symbols

[0027] 100. Hinge; 10. Hinge piece; 11. Accommodating space; 12. Positioning slot; 13. Mounting slot; 14. Rotating block; 20. Rotating pin; 30. Reset spring element; 31. Torque arm; 32. Winding part; 40. Monitoring component; 41. Fixed contact; 42. Moving contact; 43. Elastic conductive element; 44. Monitoring box; 50. Snap-fit ​​element; 51. Snap-fit ​​block; 511. Retractable part; 52. Receiving slot; 53. Limiting spring element; 54. Perforation; 60. Limiting element; 61. Limiting card; 62. Limiting card hole; 70. Locking component; 200. Box door; 300. Box body.

[0028] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0029] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0030] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an element positioned in between. When an element is considered to be "set" on another element, it can be directly set on the other element or there may be an element positioned in between. In this application, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The terms “comprising” and “equivalent to”, and any variations thereof, in the specification, claims, and foregoing description of the drawings, are intended to cover non-exclusive inclusion.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] This application first provides a hinge.

[0034] Figure 1 This is a structural diagram of the electrical box provided in this application when the box door is closed. Figure 2 This is a structural diagram of the electrical box provided in this application when the box door is open.

[0035] like Figure 1 and Figure 2As shown, hinge 100 is used in an electrical box, which includes a door 200, a box body 300, and hinge 100. Hinge 100 is disposed between door 200 and box body 300, and door 200 and box body 300 are rotatably connected by hinge 100. Door 200 has an open state and a closed state that can be switched by rotation. When door 200 is in the closed state, door 200 covers and closes the opening of box body 300; when door 200 is in the open state, the opening of box body 300 is exposed through door 200.

[0036] Figure 3 A schematic diagram of the hinge provided in this application at a first angle.

[0037] like Figure 1 and Figure 3 As shown, the hinge 100 includes hinge pieces 10, a rotating pin 20, and a return spring element 30. There are two hinge pieces 10, which are respectively fixed to the door 200 and the housing 300. The two hinge pieces 10 are rotatably connected to the rotating pin 20. The two hinge pieces 10 can rotate relative to each other around the rotating pin 20, allowing the door 200 to rotate to an open or closed state.

[0038] For ease of understanding, the rotation angle between the two hinge pieces 10 is defined as the first angle when the door 200 is closed, and the rotation angle between the two hinge pieces 10 is defined as the second angle when the door 200 is open. The first angle and the second angle are different. For example, the first angle can be 180°, and the second angle can be 90°. It is understood that the first angle and the second angle are only used to define the rotation angle between the two hinge pieces 10 when the door 200 is in different states. In practical applications, the specific values ​​of the first angle and the second angle can be configured according to the specific scenario, and this application does not impose any restrictions on this.

[0039] A reset spring element 30 is disposed between the rotating pin 20 and the two hinge pieces 10, and the reset spring element 30 has two torque arms 31. The two torque arms 31 are used to abut against the two hinge pieces 10 respectively, so that the two hinge pieces 10 rotate to a first angle.

[0040] When the two hinge pieces 10 rotate from the first angle to the second angle, for example, when the user applies force to rotate the cabinet door 200 from the closed state to the open state, the two hinge pieces 10 are respectively held against the two torque arms 31 under the action of force, causing the reset spring member 30 to deform under force. After the user stops applying force to the cabinet door 200, the reset spring member 30 returns to its deformed state, and the two torque arms 31 are used to hold the two hinge pieces 10 respectively and push the two hinge pieces 10 to rotate, so that the two hinge pieces 10 rotate to the first angle, and the cabinet door 200 automatically rotates to the closed state.

[0041] Figure 4 A schematic diagram of the structure of the first hinge piece and the second hinge piece provided in this application at a first angle. Figure 5 A schematic diagram of the structure of the first hinge piece and the second hinge piece provided in this application at a second angle.

[0042] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the hinge 100 also includes a monitoring component 40. The monitoring component 40 is disposed on the hinge piece 10 and connected to the torque arm 31 corresponding to the hinge piece 10. The monitoring component 40 is used to conduct or de-energize when the two hinge pieces 10 rotate to a first angle. The monitoring component 40 is electrically connected to an electronic module, which provides feedback in response to the conduction or de-energization of the monitoring component 40. For example, the electronic module can be a warning light module, which illuminates or extinguishes a light in response to the conduction or de-energization of the monitoring component 40 to inform the user whether the door 200 is open or closed.

[0043] With the hinge 100 provided in this application, when the two hinge pieces 10 are not at the first angle, the reset spring 30 can spring back, and the two torque arms 31 respectively hold the two hinge pieces 10, so that the two hinge pieces 10 rotate to the first angle. Furthermore, the power supply or power failure status of the monitoring component 40 can be used as feedback to indicate whether the two hinge pieces 10 have rotated to the first angle. Thus, in actual production, if machine tool vibration, user accidental touch, or user forgetting to close the cabinet door 200 causes the cabinet door 200 to remain open, the cabinet door 200 can automatically rotate to the closed state under the action of the reset spring 30, improving the safety of the equipment.

[0044] On the other hand, by using the feedback from the monitoring component 40, users can directly observe the opening and closing status of the door 200, or remotely obtain the opening and closing status of the door 200 using remote communication equipment. This is especially convenient for users to conduct collective inspections when there are a large number of devices on site, making management easier and reducing safety hazards.

[0045] In some embodiments, one of the hinge pieces 10 is defined as the first hinge piece 10A, and the other hinge piece 10 is defined as the second hinge piece 10B. For example, the first hinge piece 10A is bolted to the door 200, and the second hinge piece 10B is bolted to the housing 300. This achieves a rotatable connection between the door 200 and the housing 300.

[0046] Figure 6 Exploded view of the first hinge piece, the second hinge piece, the rotating pin, and the return spring provided for this application.

[0047] like Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, the reset spring 30 further includes a winding portion 32, which is spiral-shaped and wound around the rotating pin 20. Two torque arms 31 are respectively connected to the two ends of the winding portion 32. For example, the reset spring 30 can be a torsion spring, with the winding portion 32 and the two torque arms 31 integrally formed. One torque arm 31 is defined as the first torque arm 31A, and the other torque arm 31 as the second torque arm 31B. The first torque arm 31A abuts against the first hinge piece 10A, and the second torque arm 31B abuts against the second hinge piece 10B. Thus, when the first hinge piece 10A and the second hinge piece 10B rotate, the connection between the first torque arm 31A, the second torque arm 31B and the winding portion 32 will undergo bending deformation, causing the first torque arm 31A and the second torque arm 31B to swing respectively.

[0048] In some embodiments, the monitoring component 40 has two sets, one set of which is defined as the first monitoring component 40A, and the other set of which is defined as the second monitoring component 40B. The first monitoring component 40A is disposed on the first hinge piece 10A, and the second monitoring component 40B is disposed on the second hinge piece 10B.

[0049] In some embodiments, a receiving space 11 is formed between two hinge pieces 10, and a winding portion 32 is disposed within the receiving space 11. Each hinge piece 10 also has a positioning groove 12, which communicates with the receiving space 11, and a torque arm 31 is disposed within the corresponding positioning groove 12 of the hinge piece 10. Each hinge piece 10 also has a mounting groove 13, which communicates with the positioning groove 12, and a monitoring component 40 is disposed within the corresponding mounting groove 13. A rotating block 14 is disposed on the side of the hinge piece 10 facing the rotating pin 20, and the rotating block 14 is rotatably connected to the rotating pin 20.

[0050] For example, the rotating block 14 of the first hinge piece 10A is defined as the first rotating block 14A, and the rotating block 14 of the second hinge piece 10B is defined as the second rotating block 14B. There are multiple first rotating blocks 14A, each rotatably connected to both ends of the rotating pin 20. There are multiple second rotating blocks 14B, each rotatably connected to both ends of the rotating pin 20. The multiple second rotating blocks 14B are respectively disposed adjacent to the multiple first rotating blocks 14A. A receiving space 11 is formed between the first rotating block 14A and the second rotating block 14B located at one end of the rotating pin 20 and the first rotating block 14A and the second rotating block 14B located at the other end of the rotating pin 20.

[0051] The positioning groove 12 of the first hinge piece 10A is defined as the first positioning groove 12A, and the mounting groove 13 of the first hinge piece 10A is defined as the first mounting groove 13A. The first detection component is received in the first mounting groove 13A. The first positioning groove 12A extends along the length direction of the first torque arm 31A, one end of the first positioning groove 12A is connected to the first mounting groove 13A, and the other end of the first positioning groove 12A passes through the side of the first hinge piece 10A facing the rotating pin 20 to communicate with the receiving space 11.

[0052] Thus, the first monitoring component 40A can be accommodated and fixed in the first mounting groove 13A to protect the first monitoring component 40A. The first torque arm 31A can be accommodated in the positioning groove 12 and connected to the first monitoring component 40A to fix the first torque arm 31A and maintain a stable connection between the first torque arm 31A and the first hinge piece 10A.

[0053] The positioning groove 12 of the second hinge piece 10B is defined as the second positioning groove 12B, and the mounting groove 13 of the second hinge piece 10B is defined as the second mounting groove 13B. The second detection component is received in the second mounting groove 13B. The second positioning groove 12B extends along the length direction of the second torque arm 31B, one end of the second positioning groove 12B is connected to the second mounting groove 13B, and the other end of the second positioning groove 12B passes through the side of the second hinge piece 10B facing the rotating pin 20 to communicate with the receiving space 11.

[0054] Thus, the second monitoring component 40B can be accommodated and fixed within the second mounting slot 13B to protect it. The second torque arm 31B can be accommodated within the positioning slot 12 and connected to the second monitoring component 40B to fix it, maintaining a stable connection between the second torque arm 31B and the second hinge piece 10B. The winding portion 32 can be accommodated and hidden within the receiving space 11, and the first torque arm 31A, the second torque arm 31B, and the rotating pin 20 cooperate to limit and support the winding portion 32, ensuring its stability.

[0055] Figure 7 This is a schematic diagram of the monitoring component provided in this application.

[0056] like Figures 4 to 7 As shown, in some embodiments, the monitoring component 40 includes a fixed contact 41 and a movable contact 42. The fixed contact 41 is fixed to the hinge piece 10, and the movable contact 42 is fixed to the torque arm 31. Both the fixed contact 41 and the movable contact 42 are disposed within the mounting groove 13. Both the fixed contact 41 and the movable contact 42 are made of conductive material and are used for electrical connection with the electronic module.

[0057] When the two hinge pieces 10 rotate from the first angle to the second angle, the torque arm 31 elastically contracts and drives the movable contact 42 to move away from the fixed contact 41.

[0058] When the two hinge pieces 10 rotate from the second angle to the first angle, the torque arm 31 restores its elastic deformation and drives the moved contact 42 to move toward the fixed contact 41.

[0059] It is understandable that when the two hinge pieces 10 rotate, the end of the corresponding torque arm 31 that is close to the winding part 32 will bend and deform, so that the end of the torque arm 31 that is close to the moving contact 42 will move, thereby driving the moving contact 42 to move.

[0060] In some embodiments, the monitoring component 40 further includes an elastic conductive element 43, which has a first end and a second end, and is disposed within the mounting groove 13. The first end of the elastic conductive element 43 is fixed and electrically connected to the fixed contact 41. The elastic conductive element 43 may be a conductive spring.

[0061] When the two hinges 10 are rotated from the second angle to the first angle, the second end of the elastic conductive element 43 contacts the movable contact 42 to make the monitoring component 40 conductive.

[0062] When the two hinges 10 are rotated from the first angle to the second angle, the second end of the elastic conductive element 43 separates from the movable contact 42, thereby de-energizing the monitoring component 40.

[0063] It is understandable that by setting the fixed contact 41 and the movable contact 42 between the elastic conductive element 43, it can be ensured that the movable contact 42 can make contact with the elastic conductive element 43 after it moves into place, thereby reducing poor contact and improving the stability of the electrical connection.

[0064] In some embodiments, the monitoring assembly 40 further includes a monitoring box 44, which is disposed within a corresponding mounting slot 13. A fixed contact 41, an elastic conductive element 43, and a movable contact 42 are all disposed within the monitoring box 44, with the movable contact 42 slidingly engaging with the monitoring box 44. A torque arm 31 passes through the monitoring box 44 and is connected to the corresponding movable contact 42.

[0065] It is understandable that the monitoring box 44 protects the fixed contact 41, the elastic conductive element 43 and the movable contact 42, while the monitoring box 44 limits the movable contact 42 to prevent it from moving or deviating.

[0066] Figure 8 A schematic diagram of the first monitoring component provided in this application changing from a power-off state to a power-conducting state.

[0067] like Figure 2, Figure 5 and Figure 8 As shown, by way of example, the fixed contact 41, movable contact 42, elastic conductive element 43 and monitoring box 44 of the first monitoring component 40A are defined as: first fixed contact 41A, first movable contact 42A, first fixed contact 41A, first movable contact 42A, first elastic conductive element 43A and first monitoring box 44A.

[0068] The first monitoring box 44A is embedded and fixed in the first mounting groove 13A. The first fixed contact 41A, the first movable contact 42A, and the first elastic conductive element 43A are all disposed in the first monitoring box 44A. One end of the first torque arm 31A passes through the first monitoring box 44A and is fixed to the first movable contact 42A.

[0069] When the first hinge 10A and the second hinge 10B rotate from the first angle to the second angle, that is, when the door 200 is rotated open, the end of the first torque arm 31A close to the winding part 32 bends and deforms, so that the first torque arm 31A retracts as a whole. At this time, the end of the first torque arm 31A close to the first moving contact 42A moves away from the first elastic conductive member 43A, thereby moving the first moving contact 42A away from the first elastic conductive member 43A, so that the first monitoring component 40A is de-energized.

[0070] When the first hinge 10A and the second hinge 10B rotate from the second angle to the first angle, that is, when the door 200 is rotated and closed, the end of the first torque arm 31A close to the winding portion 32 restores its deformation, so that the first torque arm 31A is extended as a whole. At this time, the end of the first torque arm 31A close to the first moving contact 42A moves toward the first elastic conductive member 43A, thereby making the first moving contact 42A contact the first elastic conductive member 43A, so that the first monitoring component 40A conducts electricity.

[0071] Figure 9 A schematic diagram of the second monitoring component provided in this application changing from a power-off state to a power-conducting state.

[0072] like Figure 2 , Figure 5 and Figure 9 As shown, by way of example, the fixed contact 41, movable contact 42, elastic conductive element 43 and monitoring box 44 of the second monitoring component 40B are defined as: second fixed contact 41B, second movable contact 42B, second fixed contact 41B, second movable contact 42B, second elastic conductive element 43B and second monitoring box 44B, respectively.

[0073] The second monitoring box 44B is embedded and fixed in the second mounting groove 13B. The second fixed contact 41B, the second movable contact 42B, the second fixed contact 41B, the second movable contact 42B, and the second elastic conductive element 43B are all disposed in the second monitoring box 44B. One end of the second torque arm 31B passes through the second monitoring box 44B and is fixed to the second movable contact 42B.

[0074] When the first hinge 10A and the second hinge 10B rotate from the first angle to the second angle, that is, when the door 200 is rotated open, the end of the second torque arm 31B near the winding portion 32 bends and deforms, causing the second torque arm 31B to retract as a whole. At this time, the end of the second torque arm 31B near the second moving contact 42B moves away from the second elastic conductive member 43B, thereby causing the second moving contact 42B to move away from the second elastic conductive member 43B, so as to de-energize the second monitoring component 40B.

[0075] When the first hinge 10A and the second hinge 10B rotate from the second angle to the first angle, that is, when the door 200 is rotated and closed, the end of the second torque arm 31B near the winding portion 32 recovers its deformation, so that the second torque arm 31B is extended as a whole. At this time, the end of the second torque arm 31B near the second moving contact 42B moves toward the second elastic conductive member 43B, thereby causing the second moving contact 42B to contact the second elastic conductive member 43B, so that the second monitoring component 40B conducts electricity.

[0076] It is understandable that the first torque arm 31A and the second torque arm 31B serve two purposes: firstly, to automatically close the first hinge piece 10A and the second hinge piece 10B; and secondly, to trigger the first monitoring component 40A and the second monitoring component 40B. This simplifies the equipment mechanism, reduces structural costs, and makes debugging and maintenance more convenient.

[0077] like Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, the hinge 100 further includes a locking assembly 70, which has a locked state and an unlocked state. When the locking assembly 70 is in the locked state, it restricts the rotation of the two hinge pieces 10. When the locking assembly 70 is in the unlocked state, it allows the two hinge pieces 10 to rotate.

[0078] Specifically, the locking assembly 70 includes a latching member 50 and a limiting member 60. The limiting member 60 is disposed on the first hinge piece 10A, and the latching member 50 is disposed on the second hinge piece 10B. When the locking assembly 70 is in the locked state, the limiting member 60 and the latching member 50 are engaged. When the locking assembly 70 is in the unlocked state, the limiting member 60 and the latching member 50 are disengaged.

[0079] When the first hinge 10A and the second hinge 10B rotate from the first angle to the second angle, the limiting member 60 engages with the locking member 50 to position the first hinge 10A and the second hinge 10B at the second angle.

[0080] It is understood that when the first hinge 10A and the second hinge 10B are at the second angle, i.e., when the door 200 is open, the limiting member 60 and the locking member 50 engage to prevent the return spring member 30 from springing back, thus keeping the door 200 open and facilitating the user's inspection and maintenance of the electronic components inside the enclosure 300. After the inspection and maintenance are completed, the engagement between the limiting member 60 and the locking member 50 can be released, allowing the return spring member 30 to spring back, so that the first hinge 10A and the second hinge 10B rotate to the first angle.

[0081] In some embodiments, the limiting member 60 covers the first mounting slot 13A to protect the first monitoring component 40A. The snap-fit ​​member 50 covers the second mounting slot 13B to protect the second monitoring component 40B.

[0082] In some embodiments, the latching member 50 is provided with a latching block 51, which protrudes from the surface of the latching member 50. A limiting card 61 is provided on the side of the limiting member 60, and the limiting card 61 has a limiting hole 62. When the first hinge piece 10A and the second hinge piece 10B rotate from a first angle to a second angle, the latching block 51 engages with the limiting hole 62. Thus, the latching engagement between the latching member 50 and the limiting member 60 is achieved through the latching block 51 and the limiting hole 62.

[0083] Figure 10 This is a schematic diagram of the internal structure of the snap-fit ​​connector provided in this application.

[0084] like Figure 2 , Figure 3 and Figure 10 As shown, in some embodiments, the snap-fit ​​member 50 is provided with a receiving groove 52, the snap-fit ​​block 51 is at least partially received in the receiving groove 52, and a limiting elastic member 53 is provided in the receiving groove 52. The surface of the snap-fit ​​member 50 is provided with a through hole 54, the through hole 54 communicates with the receiving groove 52, and the limiting elastic member 53 abuts against the end of the snap-fit ​​block 51 away from the through hole 54, so that the other end of the snap-fit ​​block 51 can be exposed in the through hole 54.

[0085] When the first hinge 10A and the second hinge 10B are at the second angle, i.e., when the door 200 is open, the limiting spring member 53 pushes the locking block 51 out of the through hole 54 so that the locking block 51 can engage with the limiting locking hole 62. When it is necessary to release the engagement between the locking block 51 and the limiting locking hole 62, the locking block 51 can be pressed into the through hole 54 and compress the limiting spring member 53. After the locking block 51 is released from pressing, the limiting spring member 53 can restore its deformation and push the locking block 51 out of the through hole 54 again.

[0086] For example, the snap-fit ​​member 50 is perpendicular to the second hinge piece 10B, and the snap-fit ​​member 50 is fixed to the side of the second hinge piece 10B away from the housing 300. A receiving groove 52 is provided on the side of the snap-fit ​​member 50 away from the second hinge piece 10B. Through holes 54 are provided on the opposite sides of the snap-fit ​​member 50, and the two ends of the receiving groove 52 are respectively connected to the two through holes 54.

[0087] Two locking blocks 51 are provided, one at each end of the receiving groove 52. One end of each locking block 51 has a contraction portion 511. The contraction portion 511 protrudes from the surface of the limiting member 60 and engages with the limiting locking hole 62. Specifically, the cross-sectional area of ​​the contraction portion 511 gradually narrows away from the center of the locking block 51. The minimum cross-sectional area of ​​the contraction portion 511 is smaller than the internal area of ​​the through hole 54, and the maximum cross-sectional area of ​​the contraction portion 511 is larger than the internal area of ​​the through hole 54. Thus, the contraction portion 511 can be partially exposed outside the through hole 54, allowing it to remain exposed within the receiving groove 52 while preventing the locking member 50 from completely disengaging from the receiving groove 52.

[0088] The limiting elastic member 53 is a compression spring. The limiting elastic member 53 is disposed between the two snap-fit ​​members 50. The two ends of the limiting elastic member 53 abut against the two snap-fit ​​members 50 respectively, so as to push the contraction part 511 of the two snap-fit ​​members 50 to be exposed through the two through holes 54 respectively.

[0089] For example, the limiting member 60 is perpendicular to the first hinge piece 10A, and the limiting member 60 is fixed to the side of the first hinge piece 10A away from the door 200. There are two limiting cards 61, both fixed to the side of the limiting member 60 away from the first hinge piece 10A. The two limiting cards 61 are distributed at both ends of the limiting member 60, and their positions correspond to the positions of the two locking blocks 51. Each limiting card 61 has a limiting hole 62 that penetrates both sides of the limiting card 61.

[0090] When the first hinge piece 10A and the second hinge piece 10B are at the second angle, that is, when the door 200 is in the open state, the two locking blocks 51 are respectively engaged with the corresponding limiting locking holes 62 through the shrinking part 511 to achieve the positioning effect.

[0091] It is understandable that when the user needs to open the door 200, such as when maintenance or inspection is required, the user can rotate the door 200 clockwise so that the first hinge 10A and the second hinge 10B rotate to the angle where the two retractable parts 511 respectively abut against the two limit cards 61. Then, the user can press the two retractable parts 511 respectively and continue to rotate so that the two retractable parts 511 enter between the two limit cards 61. The limit elastic member 53 is used to make the two retractable parts 511 pop out and lock into the two limit card holes 62 respectively.

[0092] When the user needs to close the door 200, if maintenance and inspection have been completed, the user can press the two retractable parts 511 respectively to retract the two retractable parts 511 into the locking piece 50, and then rotate the door 200 counterclockwise. Under the action of the arc-shaped surface of the retractable parts 511, the two retractable parts 511 can be disengaged from the two limiting cards 61 respectively, thereby releasing the locking engagement.

[0093] This application also provides an electrical box.

[0094] like Figure 1 , Figure 3 and Figure 5 As shown, the electrical box includes a door 200, a body 300, and a hinge 100 of any of the aforementioned embodiments. One of the hinge pieces 10 is defined as the first hinge piece 10A, and the other hinge piece 10 is defined as the second hinge piece 10B. The first hinge piece 10A is fixed to the door 200, and the second hinge piece 10B is fixed to the body 300.

[0095] A reset spring element 30 and a locking assembly 70 are provided between the first hinge piece 10A and the second hinge piece 10B. The first hinge piece 10A is provided with a first monitoring assembly 40A, and the second hinge piece 10B is provided with a second monitoring assembly 40B.

[0096] When the door 200 is in the open state and the locking assembly 70 is in the locked state, the door 200 can be positioned in the open state, and the first monitoring assembly 40A and the second monitoring assembly 40B are de-energized. When the door 200 is in the open state and the locking assembly 70 is in the unlocked state, the reset spring 30 can rebound, causing the door 200 to automatically rotate to the closed state. When the door 200 is in the closed state, the first monitoring assembly 40A and the second monitoring assembly 40B are energized.

[0097] It is worth noting that the implementation principle and beneficial effects of the electrical box provided in this application can be seen in the relevant descriptions in the foregoing embodiments, and will not be repeated here.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A hinge, characterized in that The hinge comprises: two hinge leaves; a rotating pin, to which the two hinge leaves are respectively connected; a reset elastic member, arranged between the rotating pin and the two hinge leaves, the reset elastic member having two torsion arms, which are respectively used to abut the two hinge leaves, so that the two hinge leaves are rotated to a first angle; a monitoring assembly, arranged on the hinge leaves and connected to the torsion arms corresponding to the hinge leaves, the monitoring assembly being used to conduct electricity or cut off electricity when the two hinge leaves are rotated to the first angle.

2. The hinge according to claim 1, wherein The monitoring assembly comprises a fixed contact and a moving contact, the fixed contact being fixed to the hinge leaves, and the moving contact being fixed to the torsion arms; wherein, when the two hinge leaves are rotated from the first angle to a second angle, the torsion arms elastically contract and drive the moving contact to move away from the fixed contact; when the two hinge leaves are rotated from the second angle to the first angle, the torsion arms restore the elastic deformation and drive the moving contact to move close to the fixed contact.

3. The hinge of claim 2, wherein The monitoring assembly further comprises an elastic conductive member, a first end of the elastic conductive member being fixed and electrically connected to the fixed contact; when the two hinge leaves are rotated from the second angle to the first angle, a second end of the elastic conductive member is in contact with the moving contact; when the two hinge leaves are rotated from the first angle to the second angle, the second end of the elastic conductive member is separated from the moving contact.

4. The hinge of claim 3, wherein The hinge leaves are provided with mounting grooves, and the fixed contact, the elastic conductive member and the moving contact are arranged in the mounting grooves.

5. The hinge of claim 4, wherein The reset elastic member further has a winding part, the winding part being arranged around the rotating pin, and one end of each of the two torsion arms being connected to the winding part.

6. The hinge of claim 5, wherein An accommodation space is formed between the two hinge leaves; The hinge leaves are further provided with positioning grooves, the positioning grooves being communicated with the mounting grooves and the accommodation space; the winding part is arranged in the accommodation space, and the torsion arms are arranged in the positioning grooves corresponding to the hinge leaves.

7. The hinge of claim 1, wherein The hinge further comprises a locking assembly, the locking assembly comprising a clamping member and a limiting member; one of the hinge leaves is defined as a first hinge leaf, and the other hinge leaf is defined as a second hinge leaf, the limiting member being arranged on the first hinge leaf, and the clamping member being arranged on the second hinge leaf; when the first hinge leaf and the second hinge leaf are rotated from the first angle to the second angle, the limiting member and the clamping member are clamped and matched to position the first hinge leaf and the second hinge leaf at the second angle.

8. The hinge of claim 7, wherein The clamping member is provided with a clamping block, a side surface of the limiting member is provided with a limiting clamping piece, and the limiting clamping piece is provided with a limiting clamping hole; when the first hinge leaf and the second hinge leaf are rotated from the first angle to the second angle, the clamping block is clamped in the limiting clamping hole.

9. The hinge of claim 8, wherein, The clamping piece is provided with a receiving groove, the clamping block is at least partially received in the receiving groove, and a limiting elastic piece is arranged in the receiving groove; A through hole is arranged on the surface of the clamping piece, the through hole is communicated with the receiving groove, and the limiting elastic piece abuts against one end of the clamping block away from the through hole, so that the other end of the clamping block can be exposed to the through hole.

10. An electrical box, characterized by, The electric box comprises a box door, a box body and the hinge according to any one of claims 1 to 9, one of the hinge leaves is defined as a first hinge leaf, and the other hinge leaf is defined as a second hinge leaf, the first hinge leaf is fixed to the box door, and the second hinge leaf is fixed to the box body.

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