A cabinet structure with a single-pole plug-in

Abstract

The application relates to a cabinet body structure with a single-pole plug-in part and relates to the technical field of switch cabinets, which comprises a box body, a mounting port is formed on a vertical surface of one side of the box body, and a box door for plugging the mounting port is mounted; a plurality of plug-in parts are arranged in the box body, the plug-in part comprises a shell and a single connecting piece fixed on the shell, a plurality of fixing holes for clamping and fixing the end of the shell away from the single connecting piece are distributed on the inner wall of the box body, and the layout of the plurality of fixing holes on the box body is the same as that of a plurality of connecting columns on a molded case circuit breaker; in the application, when the molded case circuit breaker is installed, the shell of the plug-in part can be directly clamped into the corresponding fixing hole, and the single connecting piece and the connecting column are accurately connected, so that an additional copper bar is not needed for winding and connection. The improvement not only simplifies the installation steps, improves the installation efficiency, but also reduces the time cost and the labor cost.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of switch cabinets, in particular to a cabinet body structure with a single-pole plug-in component. BACKGROUND

[0002] In an electrical system, an electrical cabinet serves as a core component of the power system, and undertakes important tasks such as power distribution, control and protection. The electrical cabinet contains various electrical components, among which a molded case circuit breaker is one of the key protection electrical appliances, used to quickly cut off the circuit when abnormal conditions such as overload or short circuit occur, to protect the safe operation of the equipment and system. The single-pole plug-in component is an important component that connects the molded case circuit breaker and other parts inside the electrical cabinet, which ensures the reliability and safety of the circuit connection.

[0003] In the existing switch cabinet technology, a switch cabinet with ingenious design is widely favored. The switch cabinet is composed of a cabinet body and a cabinet door, and the cabinet body is specially provided with a circuit breaker chamber inside for installing a molded case circuit breaker. On the inner wall of the cabinet body away from the cabinet door, a plug-in component is fixed. This design aims to simplify the circuit connection process. The plug-in component is composed of a plastic main body and three plug-in terminals fixed side by side in the horizontal direction. The plastic main body provides stable support for the plug-in terminals, while the plug-in terminals are responsible for electrical connection with the terminal posts on the molded case circuit breaker.

[0004] However, in actual application, this design faces a thorny problem. The height of the terminal posts on the molded case circuit breaker may not completely match the height of the plug-in terminals on the plug-in component. This mismatch results in that during the installation of the molded case circuit breaker, the plug-in terminals cannot be directly connected with the terminal posts, and additional copper bars need to be used for winding and connection. This step is not only complicated and time-consuming, but also greatly increases the time cost and labor cost, and there is room for improvement. SUMMARY

[0005] The purpose of the present application is to provide a cabinet body structure with a single-pole plug-in component, to solve the problem of long installation time and complexity of the molded case circuit breaker in the related art.

[0006] The cabinet body structure with a single-pole plug-in component provided by the present application adopts the following technical solution:

[0007] A cabinet body structure with a single-pole plug-in component, comprising a box body, an installation opening is formed on a vertical surface of one side of the box body, and a cabinet door is installed to block the installation opening; a plurality of plug-in components are arranged inside the box body, each plug-in component comprises a shell and a single terminal fixed on the shell, a plurality of fixing holes are distributed on the inner wall of the box body for the end of the shell away from the single terminal to be clamped and fixed, and the layout of the plurality of fixing holes on the box body is the same as that of a plurality of terminal posts on the molded case circuit breaker.

[0008] By adopting the above technical scheme, when the molded case circuit breaker is installed, the shell of the plug-in connector can be directly clamped into the corresponding fixing hole, and the single wiring piece and the wiring post are accurately connected, without the need for additional copper bars to be wound and connected. This improvement not only simplifies the installation steps and improves the installation efficiency, but also reduces the time cost and labor cost. In addition, the design of the cabinet structure also enhances the reliability and safety of the circuit connection, providing a strong guarantee for the stable operation of the power system.

[0009] Optionally, an arc isolation plate is installed on the side of the shell facing the single wiring piece in the vertical direction, and the arc isolation plate is located on the side of the single wiring piece and parallel to the single wiring piece.

[0010] By adopting the above technical scheme, the design of the arc isolation plate plays a role in isolation and protection, which can prevent the outward diffusion of the arc generated at the connection between the single wiring piece and the wiring post, thereby reducing the potential threat of arc failure to surrounding electrical elements and personnel. In addition, the arc isolation plate can also provide certain mechanical support to enhance the stability of the plug-in connector as a whole. This improvement not only improves the safety performance of the cabinet structure, but also ensures the stable operation of the power system.

[0011] Optionally, a limiting block is fixed on the side of the shell facing the single wiring piece, a dovetail sliding block is fixed on the side of the arc isolation plate facing the shell, an obstruction block is fixed on the upper end face of the dovetail sliding block, a dovetail sliding groove is formed in the limiting block for the sliding clamping of the dovetail sliding block, and the bottom side of the obstruction block abuts against the upper side of the limiting block.

[0012] By adopting the above technical scheme, the connection between the arc isolation plate and the shell becomes more stable and easy to install. The limiting block and the dovetail sliding block are arranged to enable the arc isolation plate to be accurately slid onto the shell along a specific path (i.e. the dovetail sliding groove), and the abutment of the obstruction block and the limiting block ensures the stability of the arc isolation plate after installation. This design not only simplifies the installation process and reduces installation errors, but also improves the connection strength between the arc isolation plate and the shell. In addition, the cooperation of the dovetail sliding groove and the dovetail sliding block also has a certain self-locking function, which can effectively prevent the arc isolation plate from accidentally falling off during use, thereby further enhancing the safety and reliability of the cabinet structure.

[0013] Optionally, a guide inclined surface is arranged on the side edge of the dovetail sliding block away from the obstruction block.

[0014] By adopting the technical scheme, the guide slope is designed to enable the arc separation plate to gradually adjust to the correct installation position through the guiding effect of the slope even if there is a certain deviation in the initial position when the arc separation plate is slid into the shell. This feature not only reduces the installation difficulty and improves the installation efficiency, but also reduces the damage risk caused by improper installation. At the same time, the presence of the guide slope also enhances the matching degree between the arc separation plate and the shell, ensuring that the arc separation plate can be more tightly and stably connected with the shell after installation.

[0015] Optionally, a locking block is slidably arranged on the inner wall of the box body and located at two vertical sides of the shell, an elastic extrusion member is fixedly arranged, and a control member is arranged to drive the two locking blocks to slide away from each other; a guide rod is fixedly arranged on the side of the locking block away from the shell, and a locking notch is formed on the side of the two locking blocks close to each other; the elastic extrusion member can drive the two locking blocks to slide towards each other and enable the vertical edge of the shell to be clamped into the locking notch.

[0016] By adopting the technical scheme, when the shell is installed in place, the elastic extrusion member is released by the control member to release the extrusion effect on the locking block, so that the two locking blocks slide towards each other under the action of the elastic force, thereby tightly clamping the vertical edge of the shell into the locking notch to achieve stable fixation. This design not only simplifies the installation steps and improves the installation efficiency, but also ensures the stability and reliability of the shell during installation. At the same time, when unlocking is needed, the shell can be easily released by operating the control member again, which is convenient for subsequent maintenance or replacement.

[0017] Optionally, the elastic extrusion member includes a first spring in a compressed state and a guide block fixedly arranged on the inner wall of the box body, a guide hole is formed in the guide block and penetrable by the guide rod, and the two ends of the first spring are fixedly connected with the guide block and the side of the locking block close to each other, respectively.

[0018] By adopting the technical scheme, the first spring is in a compressed state, providing a continuous extrusion force to the locking block, ensuring that the shell can be tightly clamped into the locking notch after installation. The arrangement of the guide block and the guide hole ensures the stability and accuracy of the locking block during sliding, preventing the locking block from deviating from the predetermined path.

[0019] Optionally, the control member includes a control rope located above the shell and a control rod, the two ends of the control rope are fixedly connected with the ends of the two guide rods away from each other, a positioning groove is formed in the inner wall of the box body and located above the arc separation plate, the middle part of the control rope is fixedly connected with one end of the control rod, and the end of the control rod away from the control rope can be inserted into the positioning groove; the two locking blocks are in a state of sliding away from each other when the control rod is inserted into the positioning groove, and at this time, the edge of the shell is detached from the locking notch.

[0020] By adopting the technical scheme, the two locking blocks can be slid away from each other by pulling the control rope, and the shell edge can be easily pulled out of the locking gap. The fixed connection between the control rope and the control rod ensures the stability and reliability of the operation, and the design of the positioning groove provides stable support for the control rod in the unlocked state, preventing accidental movement of the control rod. This design not only simplifies the unlocking steps and improves the operation efficiency, but also ensures the safety of the operation process.

[0021] Optionally, a control gap is formed on the end face of the control rod away from the control rope, the control rod can be pulled out of the positioning groove and adjusted to a vertical state, and the upper edge of the arc baffle is clamped into the control gap, at this time, the two locking blocks are in a sliding state, and the shell is clamped into the locking gap.

[0022] By adopting the technical scheme, after the shell is installed, the control rod is pulled out of the positioning groove and adjusted to a vertical state, and then the control rod is moved downward as a whole, so that the upper edge of the arc baffle is clamped into the control gap, at this time, the two locking blocks are in a sliding state, and the shell is clamped into the locking gap, and the arc baffle is further locked and positioned by the control rod.

[0023] Optionally, guide protrusions are fixed on the opposite side faces of the arc baffle in the vertical direction, and guide sliding grooves are formed on the inner walls of the control gap for the guide protrusions to slide into.

[0024] By adopting the technical scheme, the cooperation between the guide protrusions and the guide sliding grooves ensures that the arc baffle can slide along the correct path when clamped into the control gap, avoiding locking failure due to deviation. This design not only improves the accuracy and smoothness of the locking operation, but also reduces the risk of damage to the arc baffle or control rod due to improper operation.

[0025] Optionally, elastic clamping members are arranged on the guide protrusions, and positioning grooves are formed on the inner walls of the guide sliding grooves for the elastic clamping members to be clamped into.

[0026] By adopting the technical scheme, when the arc baffle slides into the control gap, the elastic clamping members can be automatically clamped into the positioning grooves, thereby realizing the firm connection between the arc baffle and the control rod. This design not only prevents accidental falling of the arc baffle during locking, but also improves the stability and reliability of the locking.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. In the installation of molded case circuit breakers, the shell of the plug-in component can be directly inserted into the corresponding fixing hole, and the single terminal is precisely connected with the terminal post, without the need for additional copper bars to be wound and connected. This improvement not only simplifies the installation steps and improves the installation efficiency, but also reduces the time cost and labor cost.

[0029] 2. When the shell is installed in place, the elastic extrusion piece releases the extrusion of the locking block through the control piece, and the two locking blocks slide towards each other under the action of the elastic force, so that the vertical edge of the shell is tightly inserted into the locking gap, realizing stable fixation. This design not only simplifies the installation steps and improves the installation efficiency, but also ensures the stability and reliability of the shell during installation. At the same time, when unlocking is needed, the shell can be easily released by operating the control piece again, which is convenient for subsequent maintenance or replacement.

[0030] 3. After the shell is installed, the control rod is pulled out of the positioning groove and adjusted to a vertical state, and then the control rod is lowered as a whole, so that the upper edge of the arc separation plate is inserted into the control gap. At this time, the two locking blocks are in a sliding state, the shell is inserted into the locking gap, and the arc separation plate is further locked and positioned by the control rod. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0032] Figure 1 is a structure diagram of the installation distribution of the plug-in component in embodiment 1 of the present application;

[0033] Figure 2 is a partial cross-sectional structure diagram of the installation cooperation of the plug-in component in embodiment 1 of the present application;

[0034] Figure 3 is a structure diagram of the installation cooperation of the arc separation plate in embodiment 1 of the present application;

[0035] Figure 4 is an exploded structure diagram of the installation distribution of the arc separation plate and the plug-in component in embodiment 1 of the present application;

[0036] Figure 5 is a structure diagram of the installation distribution of the plug-in component in embodiment 2 of the present application;

[0037] Figure 6 is a partial cross-sectional structure diagram of the installation cooperation of the locking assembly in embodiment 2 of the present application;

[0038] Figure 7 is a partial cross-sectional structural schematic diagram of the control member installation cooperation of Embodiment 2 of the present application;

[0039] Figure 8 is an exploded structural schematic diagram of the control rod and arc separation plate installation distribution of Embodiment 2 of the present application;

[0040] Figure 9 is a partial cross-sectional structural schematic diagram of the control rod and arc separation plate installation cooperation of Embodiment 2 of the present application;

[0041] Figure 10 is Figure 9 is an enlarged schematic diagram of part A.

[0042] In the figure, 1, cabinet; 11, installation port; 12, fixing hole; 13, positioning groove; 2, cabinet door; 3, plug-in member; 31, shell; 32, single terminal; 33, limiting block; 331, dovetail sliding groove; 4, arc separation plate; 41, dovetail sliding block; 411, guide inclined surface; 42, blocking block; 43, guide convex strip; 431, placement groove; 44, elastic clamping member; 441, compression spring; 442, arc convex block; 5, locking assembly; 51, locking block; 511, locking notch; 512, guide rod; 52, elastic extrusion member; 521, first spring; 522, guide block; 53, control member; 531, control rope; 532, control rod; 5321, control notch; 5322, guide sliding groove; 5323, positioning groove. DETAILED DESCRIPTION

[0043] The present application is further described in detail below in conjunction with all the drawings.

[0044] Embodiment 1:

[0045] Referring to Figure 1 , Figure 2 and Figure 3 , a cabinet structure with a single-pole plug-in member includes a cabinet 1, wherein a vertical surface of one side of the cabinet 1 is provided with an installation port 11, and a cabinet door 2 is installed to block the installation port 11; one side of the cabinet door 2 is hinged to the opening edge of the cabinet 1, and the other side is detachably connected through a conventional lock structure; the cabinet 1 is provided with three groups of plug-in members 3, wherein the plug-in member 3 includes a shell 31 and a single terminal 32 fixed on the shell 31;

[0046] The inner wall of the cabinet 1 is provided with fixing holes 12 for the end of the shell 31 to be clamped and fixed away from the single terminal 32, wherein the three fixing holes 12 on the cabinet 1 are arranged in the same way as the three terminal posts on the molded case circuit breaker, and the corresponding fixing holes 12 on the cabinet 1 are pre-installed according to the matched molded case circuit breaker during the production of the cabinet structure.

[0047] Referring toFigure 3 The shell 31 is assembled by clamping two half shells, and finally fixed by glue. The arc separation plate 4 is installed on the side of the shell 31 facing the single terminal 32 in the vertical direction. The arc separation plate 4 is located on the side of the single terminal 32, and the arc separation plate 4 and the single terminal 32 are parallel to each other.

[0048] Referring to Figure 3 and Figure 4 The limiting block 33 is integrally formed on the side of the shell 31 facing the single terminal 32. The dovetail sliding block 41 is integrally formed on the side of the arc separation plate 4 facing the shell 31. The guide slope 411 is arranged on the side edge of the dovetail sliding block 41 away from the blocking block 42. The blocking block 42 is integrally formed on the upper end surface of the dovetail sliding block 41. The dovetail sliding groove 331 is arranged on the upper surface of the limiting block 33.

[0049] When the arc separation plate 4 is installed, the bottom side of the dovetail sliding block 41 on the arc separation plate 4 is slid in the vertical direction to abut against the upper side of the limiting block 33, until the bottom side of the blocking block 42 abuts against the upper side of the limiting block 33, so as to realize the installation and fixation of the arc separation plate 4.

[0050] The implementation principle of the embodiment of the application is as follows:

[0051] The cabinet structure mainly comprises a box body 1, a box door 2 and a plug-in piece 3. The box body 1 is provided with a mounting port 11 on one side, which is blocked by the box door 2. Three groups of plug-in pieces 3 are installed in the box body 1. Each group of plug-in pieces 3 comprises a shell 31 and a single terminal 32 fixed on the shell 31. The inner wall of the box body 1 is provided with fixing holes 12 matched with the shells 31 of the plug-in pieces 3. The layout of the fixing holes 12 is the same as that of the terminal posts on the molded case circuit breaker, so as to ensure that the corresponding fixing holes 12 are opened according to the specific circuit breaker model.

[0052] Embodiment 2

[0053] Referring to Figure 5 and Figure 6 The difference between the embodiment of the application and the embodiment 1 is that the box body 1 is provided with a locking assembly 5. The locking assembly 5 comprises locking blocks 51 slidably arranged on the inner wall of the box body 1, elastic extrusion members 52 fixed on the inner wall of the box body 1, and control members 53 arranged on the inner wall of the box body 1 and used to drive the two locking blocks 51 to slide away from each other. The two locking blocks 51 are located on the two vertical sides of the shell 31. The guide rods 512 are fixed on the side of the locking blocks 51 away from the shell 31. The locking notches 511 are arranged on the sides of the two locking blocks 51 close to each other.

[0054] Before the shell 31 is installed, the locking blocks 51 are kept in the state of sliding away from each other by the control member 53; after the shell 31 is installed on the inner wall of the box body 1, the traction of the control member 53 on the two locking blocks 51 is released, the two locking blocks 51 are driven to slide towards each other by the elastic extrusion member 52, and the vertical edge of the shell 31 is clamped into the locking notch 511.

[0055] With reference to Figure 6 , the elastic extrusion member 52 comprises a first spring 521 in a compressed state and a guide block 522 fixed to the inner wall of the box body 1, wherein the guide block 522 is provided with a guide hole through which the guide rod 512 penetrates, and the two ends of the first spring 521 are fixedly connected to the mutually close sides of the guide block 522 and the locking block 51.

[0056] With reference to Figure 6 and Figure 7 , the control member 53 comprises a control rope 531 above the shell 31 and a control rod 532, the two ends of the control rope 531 are fixedly connected to the mutually faraway ends of the two guide rods 512, and the inner wall of the box body 1 is provided with a positioning groove 13 above the arc-shaped partition plate 4;

[0057] The middle part of the control rope 531 is fixedly connected to one end of the control rod 532, and the end of the control rod 532 away from the control rope 531 can be inserted into the positioning groove 13; when the control rod 532 is inserted into the positioning groove 13, the two locking blocks 51 are in the state of sliding away from each other against the elastic force of the elastic extrusion member 52, at this time, the edge of the shell 31 is out of the locking notch 511.

[0058] With reference to Figure 7 and Figure 8 , the end face of the control rod 532 away from the control rope 531 is provided with a control notch 5321; after the installation of the shell 31 is completed, the control rod 532 is pulled out of the positioning groove 13 and adjusted to a vertical state, then the control rod 532 is moved downward as a whole, so that the upper edge of the arc-shaped partition plate 4 is clamped into the control notch 5321, at this time, the two locking blocks 51 are in the state of sliding towards each other, the shell 31 is clamped into the locking notch 511, and the arc-shaped partition plate 4 is further locked and positioned by the control rod 532.

[0059] With reference to Figure 8 , Figure 9 and Figure 10 , the opposite two side faces of the arc-shaped partition plate 4 are integrally formed with guide protrusions 43 in the vertical direction, the guide protrusions 43 are provided with elastic clamping members 44, the elastic clamping members 44 comprise compression springs 441 and arc-shaped protrusions 442, the guide protrusions 43 are provided with placing grooves 431 for placing the compression springs 441 and the arc-shaped protrusions 442, the compression springs 441 extrude one side of the arc-shaped protrusions 442, so that a part of the arc-shaped protrusions 442 protrudes out of the opening of the placing groove 431, the outer side face of the protruding part is an arc face, and the corresponding arc length of the arc face is a poor arc.

[0060] The inner wall of the control gap 5321 is provided with a guide chute 5322, and the inner wall of the guide chute 5322 is provided with a positioning groove 5323 for clamping the elastic clamping piece 44; when the control rod 532 and the arc separation plate 4 are mutually inserted and assembled, the guide protrusion 43 is slid into the guide chute 5322, the downward movement of the control rod 532 is maintained, and the elastic clamping piece 44 is clamped into the corresponding positioning groove 5323.

[0061] The implementation principle of the embodiment of the present application is:

[0062] Before the shell 31 is installed, the locking block 51 is kept in a mutually sliding state by the control piece 53; after installation, the control piece 53 is released, the elastic extrusion piece 52 pushes the locking block 51 to slide towards each other, and the edge of the shell 31 is clamped into the locking gap 511 to complete the fixation. The control piece 53 is designed through the control rope 531 and the control rod 532, and the sliding state of the locking block 51 can be flexibly controlled, which is convenient for the installation and disassembly of the shell 31; in addition, the guide protrusion 43 and the elastic clamping piece 44 provided on the arc separation plate 4 cooperate with the guide chute 5322 and the positioning groove 5323 on the control rod 532, which further enhances the stability and installation convenience of the arc separation plate 4.

[0063] Unless otherwise defined, the terms or scientific terms used in the present application shall be understood as the usual meaning understood by a person with ordinary skills in the art to which the present application belongs. The terms "first", "second", "third" and the like used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. The terms "one" or "a" and the like do not represent a quantity limitation, but represent the existence of at least one. The terms "including", "containing" and the like mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. The terms "upper", "lower", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0064] The embodiments of the present specific embodiment are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A cabinet structure with a single-pole plug, comprising a cabinet (1), wherein an installation opening (11) is provided on one vertical side of the cabinet (1), and a cabinet door (2) for sealing the installation opening (11) is installed; characterized in that, The enclosure (1) is provided with several plug-in components (3). Each plug-in component (3) includes a housing (31) and a single terminal piece (32) fixed on the housing (31). The inner wall of the enclosure (1) is provided with fixing holes (12) for the end of the housing (31) away from the single terminal piece (32) to be inserted and fixed. The layout of the fixing holes (12) on the enclosure (1) is the same as that of the terminals on the molded case circuit breaker. An arc-blocking plate (4) is vertically mounted on the side of the housing (31) facing the single connector (32). The arc-blocking plate (4) is located on the side of the single connector (32) and is parallel to the single connector (32). A limiting block (33) is fixed on the side of the housing (31) facing the single connector (32). A dovetail slider (41) is fixed on the side of the arc-blocking plate (4) facing the housing (31). A blocking block (42) is fixed on the upper end face of the dovetail slider (41). A dovetail groove (331) is opened on the limiting block (33) for the dovetail slider (41) to slide into. The bottom side of the blocking block (42) abuts against the upper side of the limiting block (33). The inner wall of the housing (1) is provided with locking blocks (51) located on the two vertical sides of the housing (31), elastic pressing members (52) are fixedly provided, and control members (53) are provided to drive the two locking blocks (51) to slide in opposite directions; guide rods (512) are fixedly provided on the side of the locking blocks (51) away from the housing (31), and locking notches (511) are provided on the side of the two locking blocks (51) close to each other; the elastic pressing members (52) can drive the two locking blocks (51) to slide towards each other and make the vertical edge of the housing (31) fit into the locking notch (511); The control component (53) includes a control rope (531) located above the housing (31) and a control rod (532). The two ends of the control rope (531) are fixedly connected to the ends of the two guide rods (512) that are far apart from each other. A positioning groove (13) located above the arc-blocking plate (4) is provided on the inner wall of the housing (1). The middle part of the control rope (531) is fixedly connected to one end of the control rod (532). The end of the control rod (532) that is far away from the control rope (531) can be inserted into the positioning groove (13). The two locking blocks (51) are in a state of sliding in opposite directions when the control rod (532) is inserted into the positioning groove (13). At this time, the edge of the housing (31) comes out from the locking notch (511). The control rod (532) has a control notch (5321) on its end face away from the control rope (531). The control rod (532) can be pulled out from the positioning groove (13) and adjusted to move down to a vertical position, so that the upper edge of the arc-blocking plate (4) is inserted into the control notch (5321). At this time, the two locking blocks (51) are in a sliding state towards each other, and the housing (31) is inserted into the locking notch (511).

2. The cabinet structure with a single-pole plug-in according to claim 1, characterized in that, The dovetail slider (41) has a guide slope (411) on its side edge away from the blocking block (42).

3. The cabinet structure with a single-pole plug-in according to claim 1, characterized in that, The elastic compression member (52) includes a first spring (521) in a compressed state and a guide block (522) fixed on the inner wall of the box (1). The guide block (522) has a guide hole for the guide rod (512) to pass through. The two ends of the first spring (521) are fixedly connected to the sides of the guide block (522) and the locking block (51) that are close to each other.

4. A cabinet structure with a single-pole plug-in according to claim 1, characterized in that, The arc-blocking plate (4) has guide protrusions (43) fixed on its opposite sides in the vertical direction, and the inner wall of the control notch (5321) has a guide groove (5322) for the guide protrusions (43) to slide into.

5. A cabinet structure with a single-pole plug-in according to claim 4, characterized in that, The guide protrusion (43) is provided with an elastic snap-fit ​​member (44), and the inner wall of the guide groove (5322) is provided with a positioning groove (5323) for the elastic snap-fit ​​member (44) to be snapped into.

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