Combined electrical cabinet capable of automatically realizing sealed connection

Abstract

The invention discloses a combined electrical cabinet capable of automatically realizing sealed connection, and relates to the technical field of electrical cabinets, the combined electrical cabinet comprises a cabinet body, the two sides of the cabinet body are provided with connecting side plates, the side surface of each connecting side plate is provided with a connecting door frame, and the inner side of each connecting door frame is slidably provided with a middle door; a gap with a certain distance exists at the connecting position of the side face of the cabinet body and the connecting side plate, and a limiting mechanism used for limiting sliding of the connecting side plate is arranged on the inner side of the gap. According to the combined electrical cabinet capable of automatically realizing sealed connection, the relationship between installation and installation does not need to be distinguished during connection, and the side surface of any cabinet body can be connected with the side surface of any same cabinet body, so that the convenience of combined installation is improved; meanwhile, key parts fixedly connected with the cabinet body are all placed in the cabinet body, so that the parts can be protected from being corroded by rainwater and are safer; meanwhile, when different cabinet bodies are connected, the sealing performance of the connecting position is enhanced, and the efficiency of combined installation is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical cabinets, and in particular to a combined electrical cabinet capable of automatically realizing sealed connection. Background Art

[0002] An electrical cabinet, also called a power distribution cabinet, is an important device in the electrical field. It has a variety of electrical instruments, switches, circuit breakers and other electrical parts fixed inside. Its main function is to distribute electrical energy to various electrical devices and detect and protect the distributed circuits at the same time. The types of electrical cabinets vary depending on the application scenario. Among them, an electrical cabinet that can assemble electrical components of different functional modules together to form a complete control device is called a modular electrical cabinet. This type of electrical cabinet is powerful, flexible and has broad application prospects and development space.

[0003] The combined electrical cabinet is composed of multiple independent electrical cabinets and has certain expandability. However, when different electrical cabinets are combined and connected, the sealing of the joints is poor. In outdoor environments, the above situation can easily cause dust and rainwater to enter the electrical cabinet, thereby posing a threat to circuit safety. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] The technical problem to be solved by the present invention is that, in view of the above-mentioned defects of the prior art, a combined electrical cabinet that can automatically achieve a sealed connection is provided. When in use, when two different electrical cabinets are connected, an inflatable rubber tube can be used to achieve the sealing of the connection, thereby achieving the waterproof and dustproof effect of the combined electrical cabinet.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a combined electrical cabinet that can automatically achieve a sealed connection, comprising a cabinet body, connecting side panels are arranged on both sides of the cabinet body, a connecting door frame is opened on the side of each connecting side panel, an intermediate door is slidably arranged on the inner side of the connecting door frame, there is a gap of a certain distance at the connection between the cabinet side and the connecting side panel, a limiting mechanism for limiting the sliding of the connecting side panel is arranged on the inner side of the gap, a fastening mechanism for connecting the cabinet body and the connecting side panel is arranged at one edge of the connecting side panel close to the inside of the cabinet body, an expansion mechanism for sealing the connection between different cabinets is also arranged at the gap between the connecting side panel and the cabinet side, and a connecting mechanism for connecting the intermediate door and the connecting side panel is arranged on the side of the intermediate door.

[0007] As a preferred solution of the combined electrical cabinet that can automatically achieve sealed connection as described in the present invention, wherein: the limiting mechanism includes a limiting plate, a sliding groove, a lifting slider, a lifting spring and a limiting frame, the limiting plate is located in the gap at the connection between the connecting side plate and the cabinet body, the limiting plate is fixedly set on the side of the cabinet body, the connecting side plate is slidably set on the side of the limiting plate, the sliding groove is located in the gap at the connection between the connecting side plate and the cabinet body and is opened on the side of the cabinet body, the lifting slider is slidably set on the inner side of the sliding groove, and its end facing the outside of the cabinet body is magnetic.

[0008] As a preferred solution of the combined electrical cabinet capable of automatically achieving sealed connection as described in the present invention, wherein: the two ends of the lifting spring are respectively fixedly arranged on the side of the lifting slider and the inner side of the sliding groove, and the limit frame is sleeved on the side of the lifting slider and fixedly arranged on the side of the connecting side plate.

[0009] As a preferred solution of the combined electrical cabinet that can automatically achieve sealed connection as described in the present invention, the fastening mechanism includes a casing, a sealing chamber, a driving motor, a bidirectional screw, a movable column, a limit rod, a support column, a fixed frame, a rotating plate, a torsion spring, a limit block and a spring clip, the casing is provided with multiple and respectively fixedly arranged at the edges of the inner side of the cabinet, the sealing chamber is fixedly arranged at one end of the casing, the driving motor is fixedly arranged on the inner side of the cabinet through a bracket, the bidirectional screw is fixedly arranged at the output end of the driving motor through a coupling, and the bidirectional screw passes through the casing and finally extends to the interior of the sealing chamber.

[0010] As a preferred solution of the combined electrical cabinet that can automatically achieve sealed connection as described in the present invention, wherein: a threaded hole is opened at one end of the movable column and is sleeved on the side of the bidirectional screw, a pair of movable columns are provided and are respectively located at different threads of the bidirectional screw, the limit rod is fixedly provided on the inner side of the casing and passes through the side of the movable column, and a pair of support columns are provided and are fixedly provided on the inner side of the casing.

[0011] As a preferred solution of the combined electrical cabinet capable of automatically achieving sealed connection described in the present invention, wherein: the fixed frame is fixedly arranged on the side surface of the connecting side plate, one end of the rotating plate is rotatably arranged on the inner side of the fixed frame through a rotating shaft, the two ends of the torsion spring are respectively fixedly arranged on the inner side of the rotating plate and the side surface of the rotating shaft, the limiting plate is fixedly arranged on the inner side of the fixed frame, and the spring clip is fixedly arranged on the side surface of the connecting side plate, which can overcome the elastic force of the torsion spring and clamp the rotating plate on its inner side.

[0012] As a preferred solution of the combined electrical cabinet capable of automatically achieving sealed connection described in the present invention, the expansion mechanism includes a fastening frame, a rubber hose, a vent pipe, a compression plate and a threaded cylinder, the fastening frame is located in the gap between the connecting side panel and the cabinet body, four fastening frames are provided on each side of the cabinet body and are respectively fixed at the four corners of the cabinet body, the rubber hose is placed on the inner side of the fastening frame, and the rubber hose is restricted in the gap between the connecting side panel and the cabinet body through the fastening frame, one end of the vent pipe is connected to the side of the rubber hose, and the other end passes through the inner side of the cabinet body and is connected to the side of the sealing chamber.

[0013] As a preferred solution of the combined electrical cabinet capable of automatically achieving sealed connection described in the present invention, the compression plate is slidably arranged on the inner side of the sealing chamber, the threaded barrel is fixedly arranged on the side of the sealing chamber, and the threaded barrel is sleeved and threadedly connected to the side of the bidirectional thread.

[0014] As a preferred solution of the combined electrical cabinet capable of automatically achieving sealed connection described in the present invention, the connecting mechanism includes a support plate, a card hole, an eccentric card block, a push rod, a fixed plate, a sliding rod and a reset spring, the support plate is fixedly arranged on the side of the middle door, the support plate is located at the edge of the connecting door frame and is slidably arranged on the inner side of the connecting door frame, the card hole is opened on the side of the support plate, and the card hole is opened on the top of the support plate.

[0015] As a preferred solution of the combined electrical cabinet that can automatically achieve sealed connection as described in the present invention, the eccentric block is rotatably set on the side of the connecting side plate through a bracket, the push rod is fixedly set on the side of the eccentric block, the fixed plate is located directly below the eccentric block and fixedly set on the side of the connecting side plate, the sliding rod passes through and is slidably set on one side of the fixed plate, the two ends of the reset spring are respectively fixedly set on the side of the fixed plate and the side of the sliding rod, when the middle door and the connecting side plate are fixedly connected, the push rod abuts against the side of the connecting side plate, the eccentric block is slidably set on the top of the sliding rod, and the sliding rod is clamped on the inner side of the clamping hole.

[0016] The beneficial effects of the present invention are as follows: the combined electrical cabinet capable of automatically realizing sealed connection does not need to distinguish the relationship between the installer and the installed during connection, but the side of any cabinet can be connected to the side of any identical cabinet, which improves the convenience of combined installation; at the same time, the key parts for fixing and connecting the cabinets are placed inside the cabinets, which not only protects the parts from corrosion by rainwater but also makes them safer; at the same time, when connecting different cabinets, the sealing of the connection is also strengthened, which improves the efficiency of combined installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 The present invention is a schematic diagram of the overall structure of a combined electrical cabinet that can automatically achieve sealed connection.

[0019] Figure 2 It is a schematic diagram of the structure of connecting side panels of the present invention.

[0020] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure of A.

[0021] Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged structure of B.

[0022] Figure 5 It is a schematic diagram of the internal structure of the casing of the present invention.

[0023] Figure 6 It is a half-section view of the casing and the sealed compartment of the present invention.

[0024] Figure 7 It is a structural schematic diagram of one side of the cabinet of the present invention.

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of C in the figure.

[0026] Fig. 9 It is a schematic diagram of fixing the same connecting side plate to different cabinet casings of the present invention.

[0027] Figure numerals: 1, cabinet; 2, connecting side plate; 3, connecting door frame; 4, middle door; 5, limiting mechanism; 501, limiting plate; 502, sliding groove; 503, lifting slider; 504, lifting spring; 505, limiting frame; 6, fastening mechanism; 601, housing; 602, sealing chamber; 603, driving motor; 604, bidirectional screw; 605, moving column; 606, limiting rod; 607, supporting column; 608 , fixing frame; 609, rotating plate; 610, torsion spring; 611, limit block; 612, spring clip; 7, expansion mechanism; 701, fastening frame; 702, rubber tube; 703, ventilation pipe; 704, compression plate; 705, threaded tube; 8, connecting mechanism; 801, support plate; 802, clamping hole; 803, eccentric clamping block; 804, push rod; 805, fixing plate; 806, sliding rod; 807, reset spring. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included. Example

[0032] Reference Figure 1~Figure 2 , which is the first embodiment of the present invention, provides a combined electrical cabinet capable of automatically achieving sealed connection, comprising: A cabinet body 1, with connecting side panels 2 arranged on both sides of the cabinet body 1, a connecting door frame 3 is opened on the side of each connecting side panel 2, an intermediate door 4 is slidably arranged on the inner side of the connecting door frame 3, there is a gap of a certain distance at the connection between the side surface of the cabinet body 1 and the connecting side panel 2, a limiting mechanism 5 for limiting the sliding of the connecting side panel 2 is arranged on the inner side of the gap, a fastening mechanism 6 for connecting the cabinet body 1 and the connecting side panel 2 is arranged at one edge of the connecting side panel 2 close to the inside of the cabinet body 1, an expansion mechanism 7 for sealing the connection between different cabinet bodies 1 is also arranged at the gap between the connecting side panel 2 and the side surface of the cabinet body 1, and a connecting mechanism 8 for connecting the intermediate door 4 and the connecting side panel 2 is arranged on the side of the intermediate door 4.

[0033] The cabinet body 1 is generally a rectangular parallelepiped. Except for the top and the bottom, the front and rear sides of the middle part with a larger area are sealed on one side, and the other side is hollow and used to install the cabinet door; the two sides with smaller areas are also hollow, and are equipped with connecting side panels 2 through a fastening mechanism 6. The connecting side panels 2 and the cabinet body 1 are connected in a T shape, and the side of each connecting side panel 2 is equipped with an intermediate door 4 through a connecting mechanism 8.

[0034] The connecting side panels 2 and the middle door 4 can be disassembled, and the connecting door frame 3 is exposed after the middle is disassembled. The connecting door frame can provide a sufficiently large channel for connecting wires between different electrical cabinets after different electrical cabinets are connected. Example

[0035] Reference Figure 3~Figure 6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the limiting mechanism 5 includes a limiting plate 501, a sliding groove 502, a lifting slider 503, a lifting spring 504 and a limiting frame 505. The limiting plate 501 is located in the gap at the connection between the side plate 2 and the cabinet 1, the limiting plate 501 is fixedly arranged on the side of the cabinet 1, the connecting side plate 2 is slidably arranged on the side of the limiting plate 501, the sliding groove 502 is located in the gap at the connection between the side plate 2 and the cabinet 1 and is opened on the side of the cabinet 1, the lifting slider 503 is slidably arranged on the inner side of the sliding groove 502, and its end facing the outside of the cabinet 1 is magnetic, the two ends of the lifting spring 504 are respectively fixedly arranged on the side of the lifting slider 503 and the inner side of the sliding groove 502, and the limiting frame 505 is sleeved on the side of the lifting slider 503 and fixedly arranged on the side of the connecting side plate 2.

[0036] Each side of the cabinet 1 equipped with the connecting side panel 2 is provided with four sliding grooves 502, and each is close to the four corners of the connecting side panel 2. A pair of lifting springs 504 are provided at the top and bottom of each lifting slider 503, so that the lifting slider 503 is subjected to the elastic force of the lifting spring 504 when sliding up and down along the sliding groove 502, and when the lifting slider 503 is not working, the limit frame 505 on the side of the connecting side panel 2 can just fit on the side of each lifting slider 503.

[0037] The fastening mechanism 6 includes a housing 601, a sealing chamber 602, a driving motor 603, a bidirectional screw 604, a moving column 605, a limiting rod 606, a supporting column 607, a fixing frame 608, a rotating plate 609, a torsion spring 610, a limiting block 611 and a spring clip 612. The housing 601 is provided with a plurality of and respectively fixedly arranged at the edges of the inner side of the cabinet 1, the sealing chamber 602 is fixedly arranged at one end of the housing 601, the driving motor 603 is fixedly arranged on the inner side of the cabinet 1 through a bracket, and the bidirectional screw 604 It is fixed at the output end of the driving motor 603 through a coupling, the bidirectional screw 604 penetrates the casing 601 and finally extends to the interior of the sealing chamber 602, a threaded hole is opened at one end of the movable column 605 and is sleeved on the side of the bidirectional screw 604, a pair of movable columns 605 are provided and are respectively located at different threads of the bidirectional screw 604, a limiting rod 606 is fixed on the inner side of the casing 601 and penetrates the side of the movable column 605, and a pair of support columns 607 are provided and fixed on the inner side of the casing 601.

[0038] The fixed frame 608 is fixedly set on the side of the connecting side plate 2, one end of the rotating plate 609 is rotatably set on the inner side of the fixed frame 608 through the rotating shaft, the two ends of the torsion spring 610 are respectively fixedly set on the inner side of the rotating plate 609 and the side of the rotating shaft, the limiting plate 501 is fixedly set on the inner side of the fixed frame 608, and the spring clip 612 is fixedly set on the side of the connecting side plate 2, which can overcome the elastic force of the torsion spring 610 and clamp the rotating plate 609 on its inner side.

[0039] Among them, the surface of the bidirectional screw 604 is provided with threads with opposite rotation directions, and the two different movable columns 605 on the side of each bidirectional screw 604 are respectively threadedly connected to the bidirectional screw 604 and move in opposite directions when the bidirectional screw 604 rotates; a pair of symmetrically arranged rotating plates 609 are provided on the inner side of each fixed frame 608, and under the elastic force of the torsion spring 610, the rotating plates 609 always tend to approach each other, and at the same time, under the restriction of the limit block 611, the two rotating plates 609 can only rotate to a parallel degree at most, and when the connecting side plate 2 is not installed, the two movable columns 605 are relatively close, and at this time, the two rotating plates 609 parallel and perpendicular to the connecting side plate 2 can just be respectively inserted between the support column 607 and the movable column 605.

[0040] Each connecting side panel 2 is installed with a fixing frame 608, a rotating plate 609, a torsion spring 610 and a corresponding spring clip 612 on the side away from the cabinet body 1 and the side close to the cabinet body 1, and the installation positions on both sides are symmetrical, so both sides of the connecting side panel 2 can be snapped into the inside of the casing 601.

[0041] The expansion mechanism 7 includes a fastening frame 701, a rubber tube 702, a vent pipe 703, a compression plate 704 and a threaded tube 705. The fastening frame 701 is located in the gap between the side panel 2 and the cabinet 1. Four fastening frames 701 are provided on each side of the cabinet 1 and are respectively fixed at the four corners of the cabinet 1. The rubber tube 702 is placed on the inner side of the fastening frame 701. The rubber tube 702 is restricted in the gap between the side panel 2 and the cabinet 1 through the fastening frame 701. One end of the vent pipe 703 is connected to the side of the rubber tube 702, and the other end passes through the inner side of the cabinet 1 and is connected to the side of the sealing chamber 602.

[0042] The compression plate 704 is slidably disposed on the inner side of the sealing chamber 602 , and the threaded cylinder 705 is fixedly disposed on the side of the sealing chamber 602 . The threaded cylinder 705 is sleeved and threadedly connected to the side of the bidirectional thread.

[0043] When in use: When an electrical cabinet is installed, the hollow parts on both sides of the cabinet need to be connected with the side panels 2. First, slide the side panels 2 into the installation slots on the side of the cabinet 1. At this time, the side panels 2 just slide into the inner side of the limit plate 501, and the limit frame 505 just slides into the inner side of the lifting slider 503. Before installation, the rotating plate 609 on the side of the side panel 2 facing the cabinet 1 should be removed from the spring clip 612. Under the elastic force of the torsion spring 610, the two rotating plates 609 rotate 90 degrees and abut against the limit block 611, and finally keep parallel. Then, as the side panels 2 are installed, the rotating plates 609 are inserted between the moving column 605 and the supporting column 607.

[0044] After the connecting side panel 2 is installed, the driving motor 603 starts and drives the bidirectional screw 604 to rotate. Driven by the bidirectional screw 604, the moving column 605 begins to approach the rotating plate 609. Finally, the support columns 607 and the moving columns 605 on different sides respectively clamp different rotating plates 609, thereby fixing the connecting side panel 2 on the side of the cabinet 1.

[0045] When two electrical cabinets are assembled and installed, the side with the connecting side plate 2 is generally connected. At this time, one of the connecting side plates 2 of the connecting part of the two electrical cabinets needs to be removed, and the other one is left for connecting the two cabinets 1. After the sides of the two cabinets 1 are assembled and aligned, the lifting sliders 503 on the sides of the two different cabinets 1 attract each other, and then the remaining connecting side plate 2 is moved to the middle part of the connection between the two cabinets 1, and at the same time, the rotating plates 609 on both sides of the connecting side plate 2 are rotated out and inserted into the casing 601 of different cabinets 1 respectively.

[0046] As the limit frame 505 moves on the side of the lifting slider 503, the side of the connecting side panel 2 slides to the joint between every two lifting sliders 503 at the bottom of the cabinet 1. At this time, the connecting side panel 2 has slid out of the installation groove of the cabinet 1, and under the action of gravity, it presses the lifting slider 503 below itself downward. After the lifting slider 503 descends, it squeezes the rubber tube 702, so that the rubber tubes 702 between different cabinets 1 are squeezed against each other, thereby forming a sealing effect; on the other hand, the gas in the squeezed rubber tube 702 begins to flow upward, causing the rubber tube 702 in the upper part of the cabinet 1 to expand and squeeze against each other, thereby achieving a sealing effect.

[0047] After the connecting side plate 2 moves, the rotating plate 609 slides downward along the moving column 605, but is still in close contact with the moving column 605. At this time, the driving motor 603 at the connection of the two cabinets 1 is turned on. After the driving motor 603 rotates, the rotating plates 609 on different sides of the connecting side plate 2 are clamped respectively, thereby making the two cabinets 1 fixedly connected under the mediation of the connecting side plate 2. At the same time, as the bidirectional screw 604 rotates, the compression plate 704 approaches the vent pipe 703 under the drive of the threaded cylinder 705, so that the gas in the sealing chamber 602 flows to the inside of the rubber tube 702 through the vent pipe 703, causing the rubber tube 702 to further expand, thereby strengthening the sealing effect of the connection of the cabinet 1.

[0048] From the above, it can be seen that the combined electrical cabinet does not need to distinguish the relationship between the installer and the installed when connecting, but the side of any cabinet 1 can be connected to the side of any identical cabinet 1, which improves the convenience of combined installation. At the same time, the key parts for fixing the cabinet 1 are placed inside the cabinet 1, which not only protects the parts from corrosion by rainwater, but also makes it safer; at the same time, when connecting different cabinets 1, the sealing of the connection is also strengthened, which improves the efficiency of combined installation.

[0049] The remaining structures are the same as those of Example 1. Example

[0050] Reference Figure 5~Figure 8 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the connecting mechanism 8 includes a support plate 801, a clamping hole 802, an eccentric clamping block 803, a push rod 804, a fixing plate 805, a sliding rod 806 and a reset spring 807, the support plate 801 is fixedly arranged on the side of the middle door 4, the support plate 801 is located at the edge of the connecting door frame 3 and is slidably arranged on the inner side of the connecting door frame 3, the clamping hole 802 is opened on the side of the support plate 801, and the clamping hole 802 is opened on the top of the support plate 801.

[0051] The eccentric block 803 is rotatably set on the side of the connecting side plate 2 through a bracket, the push rod 804 is fixedly set on the side of the eccentric block 803, the fixed plate 805 is located directly below the eccentric block 803 and is fixedly set on the side of the connecting side plate 2, the sliding rod 806 penetrates and is slidably set on one side of the fixed plate 805, and the two ends of the reset spring 807 are respectively fixedly set on the side of the fixed plate 805 and the side of the sliding rod 806. When the middle door 4 and the connecting side plate 2 are fixedly connected, the push rod 804 abuts against the side of the connecting side plate 2, the eccentric block 803 is slidably set on the top of the sliding rod 806, and the sliding rod 806 is clamped on the inner side of the clamping hole 802.

[0052] Each middle door 4 is provided with two support plates 801 symmetrically arranged on the sides of the middle door 4 , and the rest of the connecting mechanism 8 except the support plates 801 is provided with four groups and respectively located at the four corners of the middle door 4 .

[0053] During use: After the two cabinets 1 are installed, the middle door 4 connected to the side panels 2 needs to be removed, and then the wires of the two electrical cabinets are connected from the connecting door frame 3. Therefore, the middle door 4 needs to be set to be detachable. At the same time, for the sake of sealing, rubber is provided at the contact point between the side of the middle door 4 and the connecting side panels 2.

[0054] Among them, the middle door 4 and the connecting side panel 2 are fixed by a connecting mechanism 8. When installing the middle door 4, the support plate 801 on the side of the middle door 4 is slid into the side of the connecting door frame 3, and then the eccentric clamping block 803 is rotated in the direction of the connecting side panel 2 until the end of the top rod 804 abuts against the side of the connecting side panel 2. At this time, the protrusion of the eccentric clamping block 803 abuts against the top of the sliding rod 806. After the sliding rod 806 is squeezed by the eccentric clamping block 803, it slides downward and finally gets stuck in the clamping hole 802 on the side of the support plate 801. After multiple sliding rods 806 and the clamping hole 802 are connected, the middle door 4 and the connecting side panel 2 are fixed together.

[0055] The remaining structure is the same as that of Example 2.

[0056] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0057] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0058] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A combined electrical cabinet capable of automatically achieving sealed connection, characterized in that: include, A cabinet (1), wherein connecting side panels (2) are arranged on both sides of the cabinet (1), a connecting door frame (3) is provided on the side of each connecting side panel (2), an intermediate door (4) is slidably arranged on the inner side of the connecting door frame (3), a gap of a certain distance exists at the connection between the side of the cabinet (1) and the connecting side panel (2), a limiting mechanism (5) for limiting the sliding of the connecting side panel (2) is arranged on the inner side of the gap, a fastening mechanism (6) for connecting the cabinet (1) and the connecting side panel (2) is arranged at an edge of one side of the connecting side panel (2) close to the inside of the cabinet (1), an expansion mechanism (7) for sealing the connection between different cabinets (1) is also arranged at the gap between the connecting side panel (2) and the side of the cabinet (1), and a connecting mechanism (8) for connecting the intermediate door (4) and the connecting side panel (2) is arranged on the side of the intermediate door (4).

2. The combined electrical cabinet capable of automatically achieving sealed connection according to claim 1, characterized in that: The limiting mechanism (5) comprises a limiting plate (501), a sliding groove (502), a lifting slider (503), a lifting spring (504) and a limiting frame (505); the limiting plate (501) is located in a gap at a connection point between the connecting side plate (2) and the cabinet body (1); the limiting plate (501) is fixedly arranged on a side of the cabinet body (1); the connecting side plate (2) is slidably arranged on a side of the limiting plate (501); the sliding groove (502) is located in a gap at a connection point between the connecting side plate (2) and the cabinet body (1) and is opened on a side of the cabinet body (1); the lifting slider (503) is slidably arranged on an inner side of the sliding groove (502), and one end thereof facing the outside of the cabinet body (1) has magnetism.

3. The combined electrical cabinet capable of automatically achieving sealed connection according to claim 2, characterized in that: The two ends of the lifting spring (504) are respectively fixedly arranged on the side of the lifting slider (503) and the inner side of the sliding groove (502), and the limit frame (505) is sleeved on the side of the lifting slider (503) and fixedly arranged on the side of the connecting side plate (2).

4. The combined electrical cabinet capable of automatically achieving sealed connection according to claim 3, characterized in that: The fastening mechanism (6) comprises a casing (601), a sealing chamber (602), a driving motor (603), a bidirectional screw (604), a moving column (605), a limiting rod (606), a supporting column (607), a fixing frame (608), a rotating plate (609), a torsion spring (610), a limiting block (611) and a spring clip (612); the casing (601) is provided with a plurality of fixing blocks respectively arranged at edges on the inner side of the cabinet (1); the sealing chamber (602) is fixedly arranged at one end of the casing (601); the driving motor (603) is fixedly arranged on the inner side of the cabinet (1) via a bracket; the bidirectional screw (604) is fixedly arranged at the output end of the driving motor (603) via a coupling; the bidirectional screw (604) passes through the casing (601) and finally extends to the interior of the sealing chamber (602).

5. The combined electrical cabinet capable of automatically achieving sealed connection according to claim 4, characterized in that: A threaded hole is formed at one end of the movable column (605) and is sleeved on the side of the bidirectional screw (604); a pair of movable columns (605) are provided and are respectively located at different threads of the bidirectional screw (604); the limiting rod (606) is fixedly provided on the inner side of the housing (601) and passes through the side of the movable column (605); and a pair of supporting columns (607) are provided and are fixedly provided on the inner side of the housing (601).

6. The combined electrical cabinet capable of automatically achieving sealed connection according to claim 5, characterized in that: The fixing frame (608) is fixedly arranged on the side of the connecting side plate (2); one end of the rotating plate (609) is rotatably arranged on the inner side of the fixing frame (608) via a rotating shaft; two ends of the torsion spring (610) are respectively fixedly arranged on the inner side of the rotating plate (609) and the side of the rotating shaft; the limiting plate (501) is fixedly arranged on the inner side of the fixing frame (608); and the spring clip (612) is fixedly arranged on the side of the connecting side plate (2) and is capable of overcoming the elastic force of the torsion spring (610) and clamping the rotating plate (609) on its inner side.

7. The combined electrical cabinet capable of automatically achieving sealed connection according to claim 6, characterized in that: The expansion mechanism (7) comprises a fastening frame (701), a rubber tube (702), a vent pipe (703), a compression plate (704) and a threaded cylinder (705); the fastening frame (701) is located at a gap at a connection point between the side plate (2) and the cabinet (1); four fastening frames (701) are provided on each side of the cabinet (1) and are respectively fixed at four corners of the cabinet (1); the rubber tube (702) is placed on the inner side of the fastening frame (701); the rubber tube (702) is restricted at a gap at a connection point between the side plate (2) and the cabinet (1) by the fastening frame (701); one end of the vent pipe (703) is connected to a side of the rubber tube (702); the other end passes through the inner side of the cabinet (1) and is connected to a side of the sealing chamber (602).

8. The combined electrical cabinet capable of automatically achieving sealed connection according to claim 7, characterized in that: The compression plate (704) is slidably disposed on the inner side of the sealing chamber (602), the threaded barrel (705) is fixedly disposed on the side of the sealing chamber (602), and the threaded barrel (705) is sleeved and threadedly connected to the side of the bidirectional thread.

9. The combined electrical cabinet capable of automatically achieving sealed connection according to claim 8, characterized in that: The connecting mechanism (8) comprises a support plate (801), a clamping hole (802), an eccentric clamping block (803), a push rod (804), a fixing plate (805), a sliding rod (806) and a return spring (807); the support plate (801) is fixedly arranged on the side of the middle door (4); the support plate (801) is located at the edge of the connecting door frame (3) and is slidably arranged on the inner side of the connecting door frame (3); the clamping hole (802) is provided on the side of the support plate (801); and the clamping hole (802) is provided on the top of the support plate (801).

10. The combined electrical cabinet capable of automatically achieving sealed connection according to claim 9, characterized in that: The eccentric clamping block (803) is rotatably arranged on the side of the connecting side plate (2) through a bracket, the push rod (804) is fixedly arranged on the side of the eccentric clamping block (803), the fixed plate (805) is located directly below the eccentric clamping block (803) and is fixedly arranged on the side of the connecting side plate (2), the sliding rod (806) penetrates and is slidably arranged on one side of the fixed plate (805), and the two ends of the return spring (807) are respectively fixedly arranged on the side of the fixed plate (805) and the side of the sliding rod (806). When the middle door (4) and the connecting side plate (2) are fixedly connected, the push rod (804) abuts against the side of the connecting side plate (2), the eccentric clamping block (803) is slidably arranged on the top of the sliding rod (806), and the sliding rod (806) is clamped on the inner side of the clamping hole (802).

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