Waterproof low-voltage cabinet door structure and low-voltage cabinet

Abstract

The utility model discloses a waterproof low-voltage cabinet door structure. The low-voltage cabinet door structure comprises a metal plate door, a door frame, a hinge and an enclosure structure, the metal plate door is movably connected with the door frame through the hinge; the metal plate door is provided with a foaming sealing strip, the door frame is provided with a receding groove, the foaming sealing strip is right opposite to the receding groove, and the foaming sealing strip is in interference fit with the receding groove when the metal plate door is closed on the door frame. The enclosing structure plays a role in protecting the foaming sealing strip, the shape and the position of the sealing strip can be kept even after multiple times of repeated switching operation, and the technical scheme solves the problem that the waterproof performance is reduced due to deformation or looseness possibly generated in the repeated switching process of a traditional low-voltage cabinet; the utility model further provides a low-voltage cabinet which adopts the low-voltage cabinet door structure, and the problem that a traditional low-voltage cabinet cannot deal with short-time water immersion and continuous water immersion is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waterproof low -voltage cabinet technical field especially relates to a waterproof low -voltage cabinet door structure and low -voltage cabinet. BACKGROUND

[0002] In the field of power system and industrial automation, low -voltage cabinet plays a pivotal role, and the maintenance of its internal environment has a decisive role in ensuring the stable operation of power system. Especially in outdoor operation or high humidity environment, the waterproof performance of low -voltage cabinet becomes an important indicator to measure its reliability and safety.

[0003] Traditional low -voltage cabinet in waterproof design, mostly rely on simple sealing strip or waterproof paint to protect. However, these measures have exposed a series of problems in practical application. On the one hand, the traditional design does not fully consider the deformation or loosening that may be generated in the process of frequent opening and closing of cabinet door, leading to the decline of waterproof performance with time. On the other hand, these waterproof means mainly focus on defending water, splashing water and water spray and other common water sources, and it is not up to the task for more severe flood water immersion situation, which cannot effectively prevent water from invading in the case of soaking, so as to ensure the normal operation of internal electrical components in extreme environment. SUMMARY

[0004] In view of the above-mentioned defects, the utility model discloses a waterproof low -voltage cabinet door structure, solves the problem that the deformation or loosening that may be generated in the process of repeated opening and closing of traditional low -voltage cabinet, thereby leading to the decline of waterproof performance.

[0005] Another purpose of the utility model is to provide a low -voltage cabinet, which solves the problem that the traditional low -voltage cabinet cannot cope with short -time water immersion and continuous water immersion and moisture and humidity penetration into the low -voltage cabinet, thereby damaging electrical components.

[0006] To achieve this purpose, the utility model adopts the following technical scheme: a waterproof low -voltage cabinet door structure, the low -voltage cabinet door structure includes sheet metal door, door frame, hinge and enclosure structure;

[0007] The sheet metal door is movably connected with the door frame through the hinge;

[0008] The inner side of the sheet metal door is provided with the enclosure structure on the outer periphery;

[0009] The door frame is enclosed in the frame body based on the frame body and forms an entrance and exit, the inner periphery of the frame body has an avoidance slot, the inner side of the sheet metal door is provided with a foamed sealing strip, and the foamed sealing strip surrounds a closed sealing structure on the inner wall of the sheet metal door;

[0010] The height of the closed sealing structure is higher than the height of the enclosure structure;

[0011] The foamed sealing strip is arranged opposite to the escape groove, and the foamed sealing strip is in interference fit with the escape groove when the sheet metal door is closed on the door frame.

[0012] Further, the sheet metal door further comprises a plurality of handles, and the plurality of handles are arranged uniformly and spaced apart.

[0013] Further, the door frame is provided with a plurality of mounting seats, and each mounting seat is arranged opposite to the corresponding handle;

[0014] The handle tail portion is provided with a handle tightness adjusting portion, the handle and the handle tightness adjusting portion are rotatably connected, the handle tightness adjusting portion is arranged through the sheet metal door, and the handle tightness adjusting portion is movably connected with the mounting seat.

[0015] Further, the handle is rotatably arranged on the sheet metal door, an outer surface of the handle tightness adjusting portion is provided with a thread, an inner wall of the mounting seat is provided with a thread, and the handle tightness adjusting portion is connected with the mounting seat through the thread.

[0016] Further, the handle tightness adjusting portion comprises a first column body and a second column body, a front portion of the first column body is connected with the sheet metal door, a tail portion of the first column body is connected with a front portion of the second column body, an outer surface of the second column body is provided with a connecting thread, and a cross-sectional radius of the first column body is greater than that of the second column body.

[0017] Further, the number of the handle and the mounting seat is seven.

[0018] Further, the escape groove comprises a sunken side wall and a horizontal blocking portion, and a bottom of the sunken side wall is connected with one end of the horizontal blocking portion.

[0019] The horizontal blocking portion is a hollow rectangle as a whole, and the inlet and outlet are arranged on the hollow of the horizontal blocking portion.

[0020] Further, four corners of the horizontal blocking portion are all rounded corners.

[0021] Further, the height of the door frame is higher than that of the sheet metal door. The utility model further provides a low-voltage cabinet, and the low-voltage cabinet comprises the low-voltage cabinet door structure.

[0022] The technical scheme provided by the utility model can have the following beneficial effects: when the cabinet door is completely closed, the foamed sealing strip is closely attached to the avoiding groove due to the height of the enclosing structure being lower than the height of the foamed sealing strip, forming an effective sealing barrier, and meanwhile, the enclosing structure plays a limiting role, which can limit the foamed sealing strip from being excessively pressed when the cabinet door is closed. The enclosing structure not only plays a role of protecting the foamed sealing strip, but also improves the strength of the whole structure, and the technical scheme solves the problems of the traditional low-voltage cabinet, such as deformation or loosening in the repeated opening and closing process, thus leading to the decline of waterproof performance, the inability to cope with short-time immersion and continuous immersion and the penetration of moisture and humidity into the inside of the low-voltage cabinet, thus damaging the electrical elements. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0024] Fig. 1 It is the structure schematic view of the waterproof immersion low-voltage cabinet door in the utility model;

[0025] Fig. 2 It is the structure schematic view of the waterproof immersion low-voltage cabinet door in the utility model;

[0026] Fig. 3 It is the partial enlarged view of the waterproof immersion low-voltage cabinet door in the utility model.

[0027] Among them: sheet metal door 1, foamed sealing strip 11, handle 12, handle tightness adjusting part 13, first column body 131, second column body 132, door frame 2, avoiding groove 21, mounting seat 22, sunken side wall 211, horizontal blocking part 212, inlet and outlet 23, hinge 3 and enclosing structure 4. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the features limited by "first", "second" can explicitly or implicitly include one or more features, for distinguishing the features described, without order, without difference.

[0030] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the features limited by "first", "second" can explicitly or implicitly include one or more features, for distinguishing the features described, without order, without difference.

[0031] The utility model will be described below in combination with the accompanying drawings Figs. 1-3 The technical scheme of the utility model will be further illustrated by the specific embodiment.

[0032] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the features limited by "first", "second" can explicitly or implicitly include one or more features, for distinguishing the features described, without order, without difference.

[0033] Specifically, a thicker, high-quality foam sealing strip 11 is embedded on the inside of the sheet metal door 1 (i.e., the low-voltage cabinet door) to ensure that the foam sealing strip 11 can maintain good sealing performance after long-term use. Since the foam sealing strip 11 forms a closed sealing structure, when the cabinet door is closed, the foam sealing strip 11 and the clearance groove 21 on the door frame 2 are interference-fitted, thereby making the low-voltage cabinet as a whole form an effective sealing barrier. The operator can manually or electrically rotate the hinge 3 to open the sheet metal door 1. During the opening process, the foam sealing strip 11 gradually detaches from the clearance groove 21, ceasing to form a seal. The operator pushes the sheet metal door 1 towards the door frame 2, causing the hinge 3 to rotate to the closed position. As the cabinet door closes, the foam sealing strip 11 gradually embeds into the clearance groove 21, forming an interference fit. When the cabinet door is fully closed, because the height of the enclosure structure 4 is lower than the height of the foam sealing strip 11, the foam sealing strip 11 fits tightly against the clearance groove 21, forming an effective sealing barrier. At the same time, the enclosure structure 4 acts as a limiter, preventing excessive compression of the foam sealing strip 11 when the cabinet door is closed. The enclosure structure 4 not only protects the foam sealing strip 11 but also improves the strength of the entire structure. Since the enclosure structure 4 protects the foamed sealing strip 11, the sealing strip can maintain its shape and position even after repeated switching operations, and is not prone to degradation of waterproof performance due to wear or deformation. This technical solution solves the problem that traditional low-voltage switchgear may deform or loosen during repeated switching, thus causing a degradation of waterproof performance.

[0034] It should be noted that the inlet / outlet 23 is located in the middle of the door frame, which can provide an access path for operators so that they can carry out maintenance work on the low-voltage switchgear.

[0035] In an optional embodiment, the sheet metal door 1 further includes a plurality of handles 12, which are evenly spaced on the sheet metal door 1.

[0036] Specifically, the evenly distributed handles 12 allow operators to easily find and grasp them, thereby facilitating the opening or closing of the sheet metal door 1. The presence of the handles 12 enables operators to maintain a stable grip when opening or closing the cabinet door, reducing accidental injuries caused by slipping or losing balance.

[0037] In an optional embodiment, the door frame 2 is provided with a plurality of mounting seats 22, each of which is arranged opposite to the corresponding handle 12; the tail of the handle 12 is provided with a handle tightness adjusting part 13, which is arranged through the metal door 1 and movably connected with the mounting seat 22, that is, the handle tightness adjusting part 13 can be inserted into the mounting seat 22.

[0038] Specifically, the handle 12 is movably connected with the mounting seat 22 on the door frame 2 through the handle tightness adjusting part 13, which helps to enhance the stability of the entire cabinet door structure. When subjected to external forces such as strong winds and heavy rains, this design can significantly reduce the shaking and deformation of the cabinet door, ensure that the cabinet door always remains closed, effectively prevent external moisture, dust and other impurities from entering the cabinet, and protect the safe operation of electrical equipment and lines in the cabinet.

[0039] In an optional embodiment, the handle 12 is rotatably arranged on the metal door 1, the outer surface of the handle tightness adjusting part 13 is provided with threads, the handle 12 is rotatably connected with the handle tightness adjusting part 13, and the inner wall of the mounting seat 22 is provided with threads, and the handle tightness adjusting part 13 is connected with the mounting seat 22 through the threads.

[0040] Specifically, due to the characteristics of threaded connection, the operator can adjust the position of the handle 12 in the mounting seat 22 by rotating the handle 12: inwardly rotating the handle 12 to connect the handle tightness adjusting part 13 with the mounting seat 22, thereby closing the cabinet door; outwardly rotating the handle 12 to separate the handle tightness adjusting part 13 from the mounting seat 22, thereby opening the cabinet door. And because threaded connection has a tight engagement force, it can maintain the stability of the connection between the metal door 1 and the door frame 2 in a vibrating or impacting environment.

[0041] In an optional embodiment, the handle tightness adjusting part 13 includes a first column body 131 and a second column body 132, the front of the first column body 131 is connected with the metal door 1, the tail of the first column body 131 is connected with the front of the second column body 132, the outer surface of the second column body 132 is provided with connecting threads, and the cross-sectional radius of the first column body 131 is greater than that of the second column body 132.

[0042] Specifically, the firm connection of the first column body 131 with the metal door 1 and the movable connection of the second column body 132 with the mounting seat 22 on the door frame 2 jointly constitute a stable support structure. This design not only enhances the connection strength of the handle 12 with the metal door 1, but also improves the stability of the entire cabinet door structure.

[0043] In an optional embodiment, the number of handles 12 and mounting seats 22 is seven.

[0044] Specifically, the arrangement of multiple handles and mounting seats increases the connection points between the sheet metal door 1 and the door frame 2, thereby enhancing the stability and external force resistance of the entire cabinet door structure, which helps to reduce the risk of deformation and damage of the cabinet door when subjected to external forces, and ensures that the cabinet door always remains closed.

[0045] It should be noted that the number of handles 12 and mounting seats 22 is not limited, and seven handles 12 and mounting seats 22 are used here, two handles 12 are arranged at the top of the sheet metal door 1, three handles 12 are arranged at the movable section of the sheet metal door 1, and two handles 12 are arranged at the bottom of the sheet metal door 1.

[0046] In an optional embodiment, the avoidance groove 21 includes a sunken side wall 211 and a horizontal blocking part 212, the bottom of the sunken side wall 211 is connected with one end of the horizontal blocking part 212; the horizontal blocking part 212 is a hollow rectangle as a whole, and the inlet and outlet 23 is arranged on the hollow of the horizontal blocking part 212.

[0047] Specifically, the design of the sunken side wall 211 provides a clear positioning reference for the foamed sealing strip 11. When the sheet metal door 1 is closed, the foamed sealing strip 11 can be more easily and accurately embedded in the avoidance groove 21; the horizontal blocking part 212 serves as the main load-bearing part of the avoidance groove 21, which provides a stable support surface for the foamed sealing strip 11; the sunken side wall 211 and the horizontal blocking part 212 form an installation space, and the foamed sealing strip 11 can be tightly embedded in the installation space to form an effective seal.

[0048] In an optional embodiment, the four corners of the horizontal blocking part 212 are rounded.

[0049] Specifically, when the sheet metal door 1 is closed on the door frame 2, the rounded corners can reduce friction and resistance during the installation of the foamed sealing strip 11 into the avoidance groove 21, making assembly easier, and the rounded corner design can more effectively disperse stress. After the foamed sealing strip 11 is installed into the avoidance groove 21, the rounded corner design can effectively reduce the phenomenon of stress concentration at the corners, improving the service life of the foamed sealing strip 11.

[0050] In an optional embodiment, the height of the door frame 2 is higher than the height of the sheet metal door 1. Specifically, the height of the door frame 2 exceeds the height of the sheet metal door 1, which not only provides additional support for the cabinet door, but also enhances the stability of the entire structure. In response to external pressure or impact, such as strong winds, heavy rain and other severe weather, this design can reduce the risk of deformation of the cabinet door and prolong the service life.

[0051] In an optional embodiment, the low-voltage cabinet in the embodiment of the utility model adopts the low-voltage cabinet door structure, which can be specifically referred to the contents in Figs. 1 to 3 Here, it is not necessary to repeat the details. It should be noted that the switch cabinet used in the low-voltage cabinet for placing low-voltage electrical equipment not only allows users to use low-voltage electrical equipment more safely, but also prevents electric shock from causing harm to workers.

[0052] Specifically, the foamed sealing strip 11 is arranged on the inner side of the sheet metal door 1 and forms an interference fit with the avoidance groove 21 of the door frame 2. Since the height of the enclosing structure 4 is lower than the height of the foamed sealing strip 11, the foamed sealing strip 11 is tightly attached to the avoidance groove 21, forming an effective sealing barrier, effectively preventing water from seeping into the low-voltage cabinet from the door gap, and ensuring the safe operation of the electrical components in the cabinet. The technical solution solves the problem that the traditional low-voltage cabinet cannot cope with short-term and continuous water immersion and moisture penetration into the low-voltage cabinet, thereby damaging the electrical components.

[0053] The embodiments of the utility model are described in detail above, and the principles and implementation methods of the utility model are described using specific examples in this paper. The above description of the embodiments is only used to help understand the method and core idea of the utility model. Meanwhile, for those skilled in the art, according to the idea of the utility model, the specific implementation method and application range will be changed, and the above description should not be understood as a limitation of the utility model.

Claims

1. A waterproofing low-voltage cabinet door structure, characterized in that, The low-voltage cabinet door structure comprises a sheet metal door, a door frame, a hinge and an enclosing structure; The sheet metal door is movably connected with the door frame through the hinge; The enclosing structure is arranged on the outer periphery of the inner side of the sheet metal door; The door frame is enclosed by a frame body, and an entrance and exit are formed in the frame body, the inner periphery of the frame body is provided with an avoiding groove, the inner side of the sheet metal door is provided with a foamed sealing strip, and the foamed sealing strip surrounds a closed sealing structure on the inner wall of the sheet metal door; The height of the closed sealing structure is higher than that of the enclosing structure; The foamed sealing strip is arranged opposite to the avoiding groove, and the foamed sealing strip is in interference fit with the avoiding groove when the sheet metal door is closed on the door frame.

2. The low voltage cabinet door structure of claim 1, wherein, The sheet metal door further comprises a plurality of handles, and the handles are uniformly arranged on the sheet metal door.

3. The low voltage cabinet door structure of claim 2, wherein, The door frame is provided with a plurality of mounting seats, and each mounting seat is arranged opposite to the corresponding handle; The handle tail is provided with a handle tightness adjusting part, the handle is rotatably connected with the handle tightness adjusting part, the handle tightness adjusting part passes through the sheet metal door, and the handle tightness adjusting part is movably connected with the mounting seat.

4. The low-voltage cabinet door structure of claim 3, wherein, The handle is rotatably arranged on the sheet metal door, the outer surface of the handle tightness adjusting part is provided with a thread, the inner wall of the mounting seat is provided with a thread, and the handle tightness adjusting part is connected with the mounting seat through the threads.

5. The low-voltage cabinet door structure of claim 4, wherein, The handle tightness adjusting part comprises a first column and a second column, the front part of the first column is connected with the sheet metal door, the tail part of the first column is connected with the front part of the second column, the outer surface of the second column is provided with a connecting thread, and the cross-sectional radius of the first column is greater than that of the second column.

6. The low-voltage cabinet door structure of claim 4, wherein, The number of the handles and the mounting seats is seven.

7. The low voltage cabinet door structure of claim 1, wherein, The avoiding groove comprises a sunken side wall and a horizontal blocking part, and the bottom of the sunken side wall is connected with one end of the horizontal blocking part; The horizontal blocking part is a hollow rectangle as a whole, and the entrance and exit is arranged on the hollow of the horizontal blocking part.

8. The low-voltage cabinet door structure of claim 7, wherein, The four corners of the horizontal blocking part are rounded.

9. The low voltage cabinet door structure of claim 1, wherein, The height of the door frame is higher than that of the sheet metal door.

10. A low voltage cabinet characterized by The low-voltage cabinet comprises the low-voltage cabinet door structure according to any one of claims 1 to 9.

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