Door lock mechanism and power distribution cabinet

Abstract

The utility model discloses a door lock mechanism and a power distribution cabinet, the door lock mechanism comprises a box body, the box body is provided with a door body and a door frame, the door body moves up and down along the door frame, one side of the door body contacted with the door frame is provided with a first locking port, the opening of the first locking port is horizontally inward, and the closed opening of the first locking port is upward; a second locking opening is formed in the inward face of the door body, an opening of the second locking opening is horizontally inward, and a first clamping block is arranged on the door frame and used for limiting the first locking opening; the rod body is arranged in the box body, a second clamping block is arranged on the lower portion of the rod body, the second clamping block is located above the second locking opening, and the rod body moves downwards or upwards along the second locking opening so as to control the second clamping block to abut against the second locking opening or be away from the second locking opening; the operation assembly is used for controlling the displacement state of the rod body; according to the door lock mechanism, the door body can be effectively fixed, the door body is prevented from falling off from the door frame, and therefore foreign matter is prevented from entering the box body.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet equipment technology, and in particular to a door lock mechanism and a power distribution cabinet. Background Technology

[0002] In the power industry, high-voltage switchgear is required to have five-proof interlocking functions, one of which is to prevent accidental entry into energized compartments. Therefore, high-voltage switchgear needs to use various interlocks to ensure that personnel cannot open the cable compartment door during equipment commissioning, thus ensuring personnel safety. At the same time, the power industry is paying increasing attention to the IP rating requirements of high-voltage switchgear, requiring the enclosure to reach IP4X. The existing lower door interlocking scheme has a design flaw. In order to make the lower door latch and the door panel fit smoothly, the pin and hole adopt a clearance fit, which cannot meet the protection level of IP4X. Utility Model Content

[0003] The following is an overview of the subject matter described in detail herein, and this overview is not intended to limit the scope of the claims.

[0004] This utility model proposes a door lock mechanism and a power distribution cabinet, which can effectively fix the door and prevent the door from falling off the door frame, thereby preventing foreign objects from entering the cabinet.

[0005] To achieve the above objectives, the first aspect of this utility model provides a door lock mechanism, comprising: a housing, on which a door and a door frame are disposed, the door moving up and down along the door frame, a first lock opening being disposed on one side of the door that contacts the door frame, the opening of the first lock opening facing horizontally inward and the closed end of the first lock opening facing upward, a second lock opening being disposed on the inward side of the door, the opening of the second lock opening facing horizontally inward, a first locking block being disposed on the door frame, the first locking block being used to restrict the first lock opening; a rod disposed within the housing, a second locking block being disposed at the lower part of the rod, the second locking block being located above the second lock opening, the rod moving down or up along the second lock opening to control the second locking block to abut against or move away from the second lock opening; and an operating component for controlling the displacement state of the rod.

[0006] In some embodiments, the second lock has a first hole with a notch facing inwards. The rod passes through the first hole and moves up and down along the first hole. The width of the notch is greater than the diameter of the rod.

[0007] In some embodiments, the rod body is further provided with a third locking block, which is located below the second locking port.

[0008] In some embodiments, the distance between the third card block and the second card block is greater than a preset threshold.

[0009] In some embodiments, the operating component includes a fourth locking block, and a protrusion is provided on the rod body. The fourth locking block is used to fix or release the protrusion.

[0010] In some embodiments, the operating component includes an operating shaft, the fourth locking block is fixed to the outside of the operating shaft, and the operating shaft drives the fourth locking block to rotate about the center of the operating shaft, so that the fourth locking block moves closer to or away from the protrusion.

[0011] In some embodiments, the operating component includes a first limiting block through which the upper portion of the rod passes.

[0012] In some embodiments, the operating component includes a second limiting block through which the middle portion of the rod passes.

[0013] To achieve the above objectives, a second aspect of this application provides a power distribution cabinet, including a switching mechanism and a door lock mechanism as described in the first aspect, the door lock mechanism including an operating component, the switching mechanism being connected to the operating component.

[0014] In some embodiments, the distribution cabinet further includes a remote control component connected to the operation component.

[0015] The embodiments of this application include at least the following beneficial effects: the opening of the first lock on the door is horizontally inward and the closed opening is upward. A first locking block is provided on the door frame. The specific process of the first locking block locking the door is as follows: the opening of the first lock is aligned with the first locking block, the door is pushed into the door frame so that the first locking block enters the first lock, and then the door sinks downward, thereby fixing the first locking block inside the first lock. Similarly, if it is necessary to unlock the first lock, the door is lifted upward so that the first locking block is aligned with the opening of the first lock. At this time, the door can be taken out outward, thereby completing the locking of the first locking block and the first lock. The door is further unlocked by setting a second lock opening on the side of the door facing the inside of the cabinet. The opening of the second lock opening faces the inside of the cabinet. At the same time, a rod is set inside the cabinet. The rod moves up or down along the second lock opening. A second locking block is set at the lower part of the rod. The second locking block is located above the second lock opening. When the first locking block locks the first lock opening, the rod moves down along the second lock opening. The second locking block abuts against the second lock opening. At this time, the upward movement of the second lock opening is blocked by the second locking block. The door cannot be lifted up, that is, the first locking block cannot be removed from the first lock opening, thereby fixing the door. Inside the door frame, by moving the rod upward along the second lock opening, the second locking block moves away from the second lock opening, giving the second lock opening space to move upward. At this point, the door can be lifted upward, allowing the first locking block to disengage from the first lock opening, thus removing the door from the door frame. In the door lock mechanism proposed in this utility model, the door can move in two directions in three-dimensional space. By simultaneously setting the first locking block and the second locking block on the rod, the first locking block first fixes the first lock opening during the process of placing the door into the door frame. After the door is placed into the door frame, the rod is controlled to move downward by the operating component, allowing the door to be lifted out of the door frame. The second locking block abuts against the second lock opening, and the rod is fixed by the operating component, preventing the rod from moving upward, thereby fixing the door inside the door frame. It can be seen that the first locking block can fix the door in the direction of the box inside and out. The first locking block and the second locking block cooperate to fix the door in the vertical direction, while the door frame itself can fix the door in the direction of the left and right sides of the box. Therefore, the door lock mechanism of this application can completely seal the inside of the box through the door and effectively fix the door to prevent the door from falling off the door frame, thereby preventing foreign objects from entering the box.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0018] Figure 1 A schematic diagram of an optional structure of the door lock mechanism provided in an embodiment of this utility model;

[0019] Figure 2 Provided for the embodiments of this utility model Figure 1 A detailed structural diagram of position A in the middle;

[0020] Figure 3 A schematic diagram of an optional structure of the first locking port and the first locking block provided in an embodiment of this utility model;

[0021] Figure 4 A schematic diagram of an optional structure of the inner side of the door provided in an embodiment of this utility model;

[0022] Figure 5 A schematic diagram of an optional structure of the rod and the second locking jaw provided in an embodiment of this utility model;

[0023] Figure 6 A schematic diagram of an optional structure of the door lock mechanism provided in an embodiment of this utility model;

[0024] Figure 7 Provided for the embodiments of this utility model Figure 6 A schematic diagram of the specific structure at position B in the middle. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Currently, the power industry requires high-voltage switchgear to have five-proof interlocking functions, one of which is to prevent accidental entry into energized compartments. Therefore, high-voltage switchgear needs to use various interlocks to ensure that personnel cannot open the cable compartment door during equipment commissioning, thus ensuring personnel safety. At the same time, the power industry is paying increasing attention to the IP rating requirements of high-voltage switchgear, requiring the enclosure to reach IP4X. The existing lower door interlocking scheme has a design flaw. In order to make the lower door latch and the door panel fit smoothly, the pin and hole adopt a clearance fit, which cannot meet the protection level of IP4X.

[0030] To address the problem of foreign objects entering the enclosure, this utility model provides a door lock mechanism and a power distribution cabinet. The door lock mechanism includes: according to the solution provided in the embodiment of this utility model, it can effectively fix the door and prevent the door from falling off the door frame, thereby preventing foreign objects from entering the enclosure.

[0031] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0032] Reference Figures 1 to 5 This utility model provides a door lock mechanism, including:

[0033] The box body 100 is provided with a door 110 and a door frame 120. The door 110 moves up and down along the door frame 120. A first lock slot 111 is provided on one side of the door 110 that contacts the door frame 120. The opening of the first lock slot 111 is horizontally inward and the closed end of the first lock slot 111 is upward. A second lock slot 112 is provided on the inward side of the door 110. The opening of the second lock slot 112 is horizontally inward. A first locking block 121 is provided on the door frame 120. The first locking block 121 is used to restrict the first lock slot 111.

[0034] A rod 200 is disposed inside the housing 100. A second locking block 210 is provided at the lower part of the rod 200. The second locking block 210 is located above the second locking opening 112. The rod 200 moves downward or upward along the second locking opening 112 to control the second locking block 210 to abut against or move away from the second locking opening 112.

[0035] Operation component 300, the operation component 300 is used to control the displacement state of the rod 200.

[0036] Understandably, the first lock opening 111 on the door 110 has its opening facing horizontally inward and its closed opening facing upward. A first locking block 121 is provided on the door frame 120. The specific process by which the first locking block 121 locks the door 110 is as follows: the opening of the first lock opening 111 aligns with the first locking block 121; the door 110 is pushed into the door frame 120, allowing the first locking block 121 to enter the first lock opening 111; then, the door 110 sinks downward, thereby fixing the first locking block 121 in place within the first lock opening 111. 1. Similarly, if it is necessary to unlock the first lock 111, the door 110 is lifted upwards so that the first locking block 121 aligns with the opening of the first lock 111. At this time, the door 110 can be removed outwards, thereby completing the unlocking between the first locking block 121 and the first lock 111. Furthermore, by setting a second lock 112 on the side of the door 110 facing the inside of the box 100, with the opening of the second lock 112 facing the inside of the box 100, and simultaneously setting a lock 112 inside the box 100, the door 110 can be unlocked. The rod 200 moves upward or downward along the second lock opening 112. A second locking block 210 is located at the lower part of the rod 200, above the second lock opening 112. When the first locking block 121 locks the first lock opening 111, the rod 200 moves downward along the second lock opening 112, causing the second locking block 210 to abut against the second lock opening 112. At this time, the upward movement of the second lock opening 112 is blocked by the second locking block 210, preventing the door 110 from moving upward. If the door is lifted upwards, the first locking block 121 cannot be removed from the first lock opening 111, thus fixing the door 110 inside the door frame 120. However, by moving the rod 200 upwards along the second lock opening 112, the second locking block 210 moves away from the second lock opening 112, giving the second lock opening 112 space to move upwards. At this point, the door 110 can be lifted upwards, allowing the first locking block 121 to disengage from the first lock opening 111, thereby removing the door 110 from the door frame 120.In the door lock mechanism proposed in this utility model, the door body 110 can move in two directions in three-dimensional space. By simultaneously setting a first locking block 121 and a second locking block 210 on the rod 200, during the process of the door body 110 being placed into the door frame 120, the first locking block 121 first fixes the first lock opening 111. After the door body 110 is placed into the door frame 120, the operating component 300 controls the rod 200 to move downward, so that the second locking block 210 abuts against the second lock opening 112. The operating component 300 fixes the rod 200, preventing it from moving upward, thereby securing the door body 110. Fixed within the door frame 120, the first locking block 121 can fix the door 110 in the direction facing inwards and outwards from the box 100. The first locking block 121 cooperates with the second locking block 210 to fix the door 110 vertically. The door frame 120 itself can fix the door 110 to the left and right sides of the box 100. Therefore, the door lock mechanism of this application can completely seal the interior of the box 100 through the door 110 and effectively fix the door 110, preventing it from falling off the door frame 120 and thus preventing foreign objects from entering the box 100.

[0037] In one specific embodiment, an insulating elastic expansion material is provided on the part where the door frame 120 and the door body 110 come into contact with each other.

[0038] Additionally, refer to Figure 5 As shown, in some embodiments of this utility model, the second lock opening 112 is provided with a first hole 113, the first hole 113 is provided with a notch, the notch is horizontally inward, the rod 200 passes through the first hole 113 and moves up and down along the first hole 113, and the width of the notch is greater than the diameter of the rod 200.

[0039] During the process of placing the door body 110 into the door frame 120, the rod body 200 passes through the notch and merges into the first hole 113. During the process of the door body 110 moving and aligning with the first locking block 121, the rod body 200 restricts the displacement path of the door body 110, restricting the door body 110 from moving in the vertical direction and in the direction of entering and exiting the door frame 120, thereby improving the locking efficiency between the first lock opening 111 and the first locking block 121.

[0040] In addition, in some embodiments of this utility model, a third locking block 220 is also provided on the rod body 200, and the third locking block 220 is located below the second locking port 112.

[0041] The distance between the third locking block 220 and the second locking block 210 is greater than a preset threshold. After the rod 200 moves upward, the second locking block 210 moves away from the second lock opening 112, and the third locking block 220 moves closer to the second lock opening 112, ensuring that the second lock opening 112 has enough upward displacement space. When the door 110 is placed into the door frame 120, the door 110 can be placed on the third locking block 220 through the first hole 113 of the second lock opening 112, that is, the door 110 is hung on the door frame 120 through the second locking block 210. At this time, it is only necessary to control the up and down displacement of the rod 200 to align the opening of the first lock opening 111 with the first locking block 121 to lock the door 110, thereby simplifying the locking process of the door 110.

[0042] In one specific embodiment, during the unlocking process of the door 110, the control lever 200 of the operating component 300 is lifted upward, the third locking block 220 abuts against the second lock opening 112, and the door 110 is also lifted upward through the second lock opening 112 until the opening of the first locking block 121 is aligned with the opening of the first lock opening 111. At this time, the door 110 can be unlocked simply by removing the box 100 from the door 110.

[0043] Additionally, refer to Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the operating component 300 includes a fourth locking block 310, and a protrusion 230 is provided on the rod body 200. The fourth locking block 310 is used to fix or loosen the protrusion 230.

[0044] Specifically, after the door body 110 is placed into the door frame 120, the rod body 200 moves downward and the second locking port 112 is fixed by the second locking block 210, the fourth locking block 310 abuts against the protrusion 230 on the rod body 200 downward, thereby fixing the second locking block 210 on the rod body 200 and abutting the second locking port 112, thus fixing the door body 110 inside the door frame 120.

[0045] In one specific embodiment, the operating component 300 includes an operating shaft 320, and the fourth locking block 310 is fixed to the outside of the operating shaft 320. The operating shaft 320 drives the fourth locking block 310 to rotate around the center of the operating shaft 320, so that the fourth locking block 310 moves closer to or away from the protrusion 230.

[0046] The operating shaft 320 rotates around its own center, and the fourth locking block 310 is set on the outer ring of the operating shaft 320. Figure 7When the operating shaft 320 rotates clockwise, the fourth locking block 310 moves away from the rod 200 and the protrusion 230 on the rod 200, so that the rod 200 can move upward to unlock the door 110; after the rod 200 and the second locking block 210 on the rod 200 lock the door 110, by controlling the operating shaft 320 to rotate counterclockwise, the fourth locking block 310 is moved above the protrusion 230 and the protrusion 230 is fixed on the platform, thereby fixing the rod 200.

[0047] Additionally, refer to Figure 7 As shown, in some embodiments of this utility model, the operating component 300 includes a first limiting block 330 and a second limiting block 340. The first limiting block 330 is above the protrusion 230, and the second limiting block 340 is below the protrusion 230. The upper part of the rod 200 passes through the first limiting block 330, and the lower part of the rod 200 passes through the second limiting block 340. The first limiting block 330 and the second limiting block 340 together limit the stroke of the rod 200, ensuring that the rod 200 can only move in the vertical direction.

[0048] In addition, this utility model also proposes a power distribution cabinet, including a switching mechanism and a door lock mechanism as described in the above embodiments. The switching mechanism is used to control the switching on or off of the circuits inside the power distribution cabinet. The door lock mechanism includes an operating component 300, and the switching mechanism is connected to the operating component 300.

[0049] When the switch is closed, the internal wiring of the distribution cabinet is in a continuous state. The operating shaft 320 rotates counterclockwise and fixes the rod 200 through the protrusion 230, which can prevent the staff from accidentally opening the door 110.

[0050] When the circuit breaker is opened, the operating shaft 320 rotates clockwise, the lever 200 is released, and the operator can remove the gate 110.

[0051] In one specific embodiment, the distribution cabinet further includes a remote control component, which is connected to the operation component 300.

[0052] The remote control component can be installed inside the housing 100 and electrically connected to the operating component 300. The operator can use the remote control component to control the operating component 300 to release the lever 200, thereby unlocking the door 110. The remote control component can also communicate with the operating component 300 via wireless signal, thereby enabling remote control of the status of the operating component 300.

[0053] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A door lock mechanism, characterized in that, include: The box body has a door and a door frame. The door moves up and down along the door frame. A first lock slot is provided on one side of the door body that contacts the door frame. The opening of the first lock slot faces inward horizontally, and the closed end of the first lock slot faces upward. A second lock slot is provided on the inward side of the door body. The opening of the second lock slot faces inward horizontally. A first locking block is provided on the door frame. The first locking block is used to restrict the first lock slot. A rod body is disposed inside the box. A second locking block is disposed at the lower part of the rod body. The second locking block is located above the second locking opening. The rod body moves downward or upward along the second locking opening to control the second locking block to abut against or move away from the second locking opening. An operating component is used to control the displacement state of the rod.

2. The door lock mechanism according to claim 1, characterized in that, The second lock has a first hole with a notch facing inward. The rod passes through the first hole and moves up and down along the first hole. The width of the notch is greater than the diameter of the rod.

3. The door lock mechanism according to claim 1, characterized in that, The rod body is also provided with a third locking block, which is located below the second locking port.

4. The door lock mechanism according to claim 3, characterized in that, The distance between the third card block and the second card block is greater than a preset threshold.

5. The door lock mechanism according to claim 1, characterized in that, The operating component includes a fourth locking block, and a protrusion is provided on the rod body. The fourth locking block is used to fix or loosen the protrusion.

6. The door lock mechanism according to claim 5, characterized in that, The operating component includes an operating shaft, and the fourth locking block is fixed to the outside of the operating shaft. The operating shaft drives the fourth locking block to rotate around the center of the operating shaft, so that the fourth locking block moves closer to or away from the protrusion.

7. The door lock mechanism according to claim 1, characterized in that, The operating component includes a first limiting block, and the upper part of the rod passes through the first limiting block.

8. The door lock mechanism according to claim 7, characterized in that, The operating component includes a second limiting block, through which the middle portion of the rod passes.

9. A power distribution cabinet, characterized in that, The device includes a circuit breaker mechanism and a door lock mechanism as described in any one of claims 1 to 8. The circuit breaker mechanism is used to control the circuit breaker opening or closing within the distribution cabinet. The door lock mechanism includes an operating component, and the circuit breaker mechanism is connected to the operating component.

10. The power distribution cabinet according to claim 9, characterized in that, It also includes a remote control component, which is connected to the operation component.

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