MNS power distribution cabinet

Abstract

The utility model provides an MNS power distribution cabinet, and aims to solve the technical problem that a conventional power distribution cabinet has potential safety hazards due to neglect of detecting the gate position of a circuit breaker. A sliding groove is formed in the front wall of an installation box of each drawer, and a limiting end and a movable end are arranged on a rotating piece which is rotationally connected in the sliding groove and matched with the sliding groove. The moving plate penetrates in the front-back direction and is slidably connected to the mounting box, and the top end is connected with a limiting end. The lifting block is connected to the moving plate in a sliding mode, and the lifting block can ascend and descend while sliding so that the bottom end of the lifting block can be exposed out of or hidden in the drawer. The movable end portion penetrates through the connecting plate in a matched mode so that the connecting plate can slide left and right. The locking plate is movably connected with the mounting plate to be arranged above the connecting plate so as to be matched with sliding of the connecting plate to achieve lifting. And the lifting of the locking plate is limited by a turntable rotationally connected with the circuit breaker. The drawer is pushed and pulled through the movement of the moving plate so as to remind a technician of the brake position state of the circuit breaker, and the operation safety is improved.

Description

Technical Field

[0001] This application relates to the field of distribution cabinets, and particularly to an MNS distribution cabinet. Background Art

[0002] As a common low-voltage complete set of distribution equipment, the MNS distribution cabinet realizes the comprehensive management and control of electric energy through steps such as power input, power management, distribution management, and electric energy output. To facilitate the operation, installation, and maintenance of the MNS distribution cabinet, the cabinet body mostly adopts a retractable drawer design. And due to cost and space considerations, a drawer group is provided inside the cabinet. Busbars are arranged in each drawer of the drawer group, and a circuit breaker connected to the busbars is installed. At the same time, the on-off state of the circuit breaker is controlled by rotating the turning handle of the cabinet body. As is well known, to ensure the safety of the distribution cabinet operation, it is necessary to ensure that the circuit breaker is in the off state before fully pushing in or preparing to pull out the drawer. However, to meet the electricity demand, it has become normal for technicians to manage the usage status of multiple distribution cabinets at the same time. Technicians usually need to rely on memory and experience to detect the on-off position of the circuit breaker, which is not only time-consuming but also poses a greater safety hazard. Summary of the Utility Model

[0003] The utility model provides an MNS distribution cabinet to solve the problems raised in the above background art.

[0004] An MNS distribution cabinet, which is arranged with a plurality of drawer units each consisting of an upper drawer and a lower drawer. Among them, a stop bar is provided at the top of each drawer. The drawer includes:

[0005] An installation box, the front wall of which is provided with a sliding groove, and a rotating piece is rotatably connected inside it;

[0006] A limiting component, which consists of a moving plate and a lifting block; the moving plate is slidably connected to the installation box in the front-rear direction, and the limiting end of the rotating piece is connected to the top; the lifting block is slidably connected to the moving plate, and is used for the lifting block to be able to lift while sliding so that the bottom end of the lifting block is exposed or hidden in the drawer;

[0007] A locking component, which consists of a connecting plate and a locking plate; the movable end of the rotating piece sequentially passes through the sliding groove and penetrates through the connecting plate in a matching manner for the left-right sliding of the connecting plate; the locking plate is arranged above the connecting plate through a rotational connection with the mounting plate, and is used to cooperate with the sliding of the connecting plate to realize the lifting of the locking plate; the lifting of the locking plate is restricted by a turntable rotatably connected to the circuit breaker.

[0008] Further, a locking groove matching the top end of the locking plate is formed in the turntable; the adjustment is made according to the change of the notch orientation of the locking groove to adapt to the circuit breaker position state; when the notch of the locking groove is directly below, the upward movement of the top end of the locking plate is locked with the locking groove through the sliding of the connecting plate.

[0009] Further, an abutting sliding groove is formed on the top surface of the connecting plate; the bottom end of the locking plate is connected to the groove wall of the abutting sliding groove, and the top end of the locking plate is arranged adjacent to the locking groove;

[0010] When the notch of the locking groove is directly below, the up-and-down movement of the bottom end of the locking plate between the abutting sliding groove and the top surface of the connecting plate outside the abutting sliding groove cooperates with the left-and-right sliding of the connecting plate.

[0011] Further, a guiding column is further arranged on the mounting plate; an inclined guiding channel cooperating with the guiding column is formed in the locking plate for limiting the rotation angle of the locking plate.

[0012] Further, the mounting plate is arranged on the right side of the mounting box in a matching manner and is rotationally connected to the turntable.

[0013] Further, both sides of the movable end in contact with the connecting plate are provided with inclined surfaces matching the movement of the movable end at the connecting plate, and the transition between it and the rotating piece is a smooth arc surface structure.

[0014] Further, a mounting post is arranged at the top end of the moving plate; a limiting groove matching the mounting post is formed in the limiting end for driving the rotation of the rotating piece by the forward and backward movement of the moving plate.

[0015] Further, a spring is further connected to the moving plate; one end of the spring is sleeved on the outer wall of the mounting post and is arranged between the top end of the moving plate and the limiting end, and the other end of the spring is mounted on the mounting box in a matching manner.

[0016] Further, the drawer is connected with a button; an abutting part matching the button is connected to the front end of the moving plate, and the end of the abutting part extends and is inserted into one end of the button facing the inner chamber of the drawer.

[0017] Further, an obliquely forward-upward lifting channel matching the lifting block is formed on the side wall of the moving plate; an upward moving hole matching the lifting of the top end of the lifting block is formed at the top end of the mounting box.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] By providing a locking groove at the turntable, the lifting and lowering realized by the top end of the locking plate sliding with the connecting plate can be limited by the change in the circumferential surface structure after the turntable rotates, thereby enabling the detection of the switch position state of the circuit breaker. At the same time, through the interlocking transmission of the left-right sliding of the connecting plate and the lifting and lowering of the lifting block, technicians can distinguish the switch position state of the circuit breaker through the pressing state of the button, thus avoiding safety accidents caused by technicians directly pushing and pulling the drawer due to negligence in detecting the switch position of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the inner chamber structure of a drawer of an MNS power distribution cabinet according to an embodiment of the present application;

[0022] Figure 2 It is an assembly schematic diagram of an installation box, a limit assembly and a locking assembly of an MNS power distribution cabinet according to an embodiment of the present application;

[0023] Figure 3 It is a side view of an installation box of an MNS power distribution cabinet equipped with a limit assembly according to an embodiment of the present application;

[0024] Figure 4 It is a schematic diagram of a rotating piece of an MNS power distribution cabinet according to an embodiment of the present application;

[0025] Figure 5 It is a schematic diagram of a drawer unit of an MNS power distribution cabinet according to an embodiment of the present application.

[0026] Reference numerals:

[0027] 10. Upper drawer; 11. Lower drawer; 12. Turning handle; 13. Stop bar; 15. Button; 16. Busbar;

[0028] 2. Installation box; 200. Upper moving hole; 22. Sliding groove; 23. Rotating piece; 230. Moving end; 231. Limiting end; 232. Card slot; 24. Card block;

[0029] 3. Limit assembly; 30. Moving plate; 300. Lifting channel; 301. Abutting part; 31. Lifting block; 32. Installation column; 33. Spring;

[0030] 40. Circuit breaker; 41. Rotating shaft; 42. Turntable; 421. Locking groove;

[0031] 5. Locking assembly; 50. Connecting plate; 500. Sliding channel; 501. Abutting sliding groove; 51. Locking plate; 51a. Locking end; 51b. Sliding connection end; 511. Oblique guiding channel; 52. Mounting plate; 521. Guiding column. Detailed implementation mode

[0032] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "circumferential", "clockwise", etc. are based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships when the products of the present invention are usually placed, or the orientation or positional relationships commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0034] In addition, in the description of the present invention, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] The following disclosure provides many different implementation modes or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various implementation modes and / or settings discussed.

[0037] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0038] The utility model embodiment provides a MNS power distribution cabinet, please refer to Figures 1-5 The distribution cabinet is provided with a plurality of drawer units, each of which is composed of an upper drawer 10 and a lower drawer 11. Each drawer includes an installation box 2, a limit assembly 3 and a locking assembly 5.

[0039] Specifically,

[0040] Each drawer has an inner chamber which is divided into a busbar chamber, a circuit breaker chamber and a detection chamber from the back to the front. The circuit breaker chamber includes a circuit breaker 40, one side of which is connected to the busbar 16 of the busbar chamber, and the other side of which is connected to a rotating shaft 41 extending toward the detection chamber. Each drawer is connected to a button 15. Each drawer is also connected to a handle 12 matching the rotating shaft 41, that is, the rotation of the handle 12 drives the rotating shaft 41 to rotate, thereby controlling the closing or opening of the circuit breaker 40. A blocking bar 13 is provided near the top of the front side of each drawer.

[0041] The installation box 2 is installed in the drawer. A sliding groove 22 is provided on the top of the front side of the installation box 2, and a clamping block 24 is connected to the front of the front side. A rotating piece 23 matching the sliding groove 22 is rotatably connected to the inner bottom wall of the top end of the installation box 2, and the rotating piece 23 includes a rotating piece body, a limiting end 231 and a movable end 230. The two ends of the rotating piece body are respectively connected to the limiting end 231 and the movable end 230. Among them, the movable end 230 is provided to pass through and be exposed in the sliding groove 22. At this time, shifting the movable end 230 to the left can realize the clockwise rotation of the rotating piece 23 relative to the installation box 2 in the sliding groove 22. The limiting end 231 is provided with a clamping groove 232.

[0042] The limiting assembly 3 includes a moving plate 30 and a lifting block 31. The moving plate 30 is connected to the limiting end portion 231 by matching, so that the lifting block 31 can match the movement of the moving plate 30 in the front-to-back direction and be obliquely slidably connected to the moving plate 30, so as to adjust the bottom end of the lifting block to be exposed or hidden in the drawer in cooperation with the stop bar 13. When the moving plate 30 has not slid backward, the bottom end of the lifting block 31 penetrates and is exposed at the bottom of the drawer; when the moving plate 30 moves backward and the lifting block 31 slides upward along the lifting channel 300, the bottom end of the lifting block 31 can be hidden in the drawer.

[0043] The moving plate 30 is provided through the front and rear sides of the installation box 2. The top of the moving plate is provided with mounting posts 32 that match the card slots, so that the limiting end 231 is connected to the moving plate 30 through the mounting posts 32. By moving the moving plate 30 backward, the mounting posts 32 are driven to move backward, thereby causing the movable end 230 to rotate. In order for the moving plate 30 that slides backward to automatically return forward to its original position, a spring 33 is also provided at the top of the moving plate. One end of the spring is sleeved on the outer wall of the mounting post and is arranged between the top of the moving plate and the limiting end 231; the other end of the spring 33 is installed on the front side of the installation box. An inclined upward lifting channel 300 penetrates through the side wall of the moving plate 30.

[0044] For the convenience of operation, a contact portion 301 that matches the button 15 can be connected to the front end of the moving plate. The end of the contact portion 150 is extended and inserted into one end of the button 15 facing the inner chamber of the drawer, so that the backward movement of the moving plate 30 can be realized by pressing the button 15.

[0045] The lifting block 31 is slidably connected to the lifting channel 300 in a matching manner, so that it realizes lifting while sliding. The lifting of the lifting block needs to cooperate with the forward and backward movement of the moving plate 30 to realize the adjustment of the bottom end of the lifting block protruding or hiding in the drawer. A upper moving hole 200 that matches the top end of the lifting block is also provided at the top of the installation box, that is, during the rising process of the lifting block 31, the top end of the lifting block 31 can protrude from the upper moving hole 200.

[0046] Taking the pushing and pulling of the upper drawer 10 restricted by the lower drawer 11 as an example: when the moving plate 30 of the upper drawer 10 has not moved backward, the bottom end of the lifting block passes through and protrudes from the bottom of the upper drawer, and through the cooperation between the bottom end of the lifting block and the lower drawer 11, the pushing and pulling of the upper drawer 10 are restricted. When the moving plate 30 slides backward to drive the lifting block 31 to rise, the bottom end of the lifting block can hide in the upper drawer 10, thereby enabling the upper drawer 10 to be freely pushed and pulled. Similarly, the pushing and pulling of the lower drawer 11 can be restricted by other drawers or the cabinet body.

[0047] The locking assembly 5 includes a connecting plate 50, a mounting plate 52 and a locking plate 51. The connecting plate 50 is penetrated by the movable end 230 and realizes sliding in the left-right direction in cooperation with the rotation state of the movable end 230. The mounting plate 52 is arranged on the right side of the installation box 2 in a matching manner and is rotatably connected by a turntable 42 provided with a locking groove 421. The locking plate 51 is arranged between the turntable 42 and the connecting plate 50 and is rotatably connected to the mounting plate 52. According to the change of the notch orientation of the locking groove 421 to adapt to the adjustment of the breaker 40's switch position state, the approach or separation of the top end of the locking plate to the locking groove 421 is realized by the sliding of the connecting plate 50, or the top end of the locking plate cannot approach the locking groove 421 because the sliding of the connecting plate 50 is restricted.

[0048] The connecting plate 50, the top end of which can be penetrated and exposed by the movable end 230 in a matching manner. Preferably, both sides of the movable end 230 in contact with the connecting plate 50 are provided with inclined surfaces that match the sliding grooves 22 and the connecting plate 50, and the transition between it and the rotating piece body is a smooth arc surface structure, so that the movable end 230 does not leave the connecting plate 50 during the rotation process, thereby driving the connecting plate 50 to slide in the left and right directions.

[0049] In order to increase the sliding stability of the connecting plate 50, the connecting plate 50 is provided with a sliding through hole 500 that matches the clamping block 24, so that the clamping block 24 and the sliding through hole 500 are slidably connected. When the connecting plate 50 has not yet slid, there is a sliding space between the right end of the sliding through hole and the clamping block 24. The top end of the connecting plate 50 is also provided with an abutting sliding groove 501. The transitions between both ends of the abutting sliding groove 501 and the top surface of the connecting plate outside the abutting sliding groove 501 are both smooth arc surface structures.

[0050] The mounting plate 52 is arranged at the rear side of the connecting plate 50 and is mounted on the inner bottom end of the mounting box 2. A turntable 42 is rotatably connected to the plate surface of the mounting plate 52 near its top end. The turntable 42 is provided with a locking groove 421, and the transitions between both ends of the locking groove 421 and the circumferential surface of the turntable outside the locking groove are both smooth arc surface structures. The rotating shaft 41 of the circuit breaker 40 penetrates through the center of the turntable 42, and the rotation of the rotating shaft 41 drives the turntable 42 to rotate to realize the change of the orientation of the notch of the locking groove 421. When the circuit breaker 40 is in the open position, the notch of the locking groove 421 faces directly downward; when the circuit breaker 40 is in the closed position, the notch of the locking groove 421 faces away from directly downward. A guiding column 521 is also provided on the front surface of the mounting plate 52.

[0051] The locking plate 51 is arranged between the abutting sliding groove 501 and the turntable 42 and is rotatably connected to the mounting plate 52. The bottom end of the locking plate 51 is a sliding connection end 51b, and the top end of the locking plate 51 is a locking end 51a. Among them, the sliding connection end 51b is connected to the groove wall of the abutting sliding groove 501, and the locking end 51a is arranged close to the locking groove 421. When the notch of the locking groove 421 faces directly downward, the movement of the connecting plate 50 in the left and right directions drives the sliding connection end 51b to move up and down between the abutting sliding groove 501 and the top surface of the connecting plate outside the abutting sliding groove 501, thereby driving the locking end 51a to rotate in the direction of approaching or departing from the locking groove 421.

[0052] Preferably, the locking plate 51 may be provided with an inclined guiding channel 511 that matches the guiding column 521. When the locking plate 51 has not rotated, the guiding column 521 is at the top end of the inclined guiding channel 511. When the notch of the locking groove 421 faces directly downward, when the sliding connection end 51b slides upward to the top surface of the connecting plate outside the abutting sliding groove, the locking end 51a can be guided to rotate and locked in the locking groove 421. When the notch of the locking groove 421 faces away from directly downward, due to the circumferential limit of the turntable on the locking end 51, the sliding connection end 51b cannot slide upward to the top surface of the connecting plate outside the abutting sliding groove.

[0053] When the circuit breaker 40 is in the open state, the notch of the locking groove 421 faces directly downward. By pressing the button 15, the moving plate 30 moves backward, driving the lifting block 31 to rise. At the same time, the leftward contraction movement of the movable end 230 drives the connecting plate 50 to move leftward. As a result, the sliding connection end 51b slides rightward and upward to the top surface of the connecting plate outside the abutting sliding groove to lift the locking end 51a to abut against the locking groove 421. At this time, the push-pull of the drawer is not restricted. If the circuit breaker 40 is in the closed state, the notch of the locking groove 421 faces away from directly downward. Due to the circumferential limit of the turntable on the locking end 51a, the sliding connection end 51b cannot slide upward to the top surface of the connecting plate outside the abutting sliding groove, which further causes the button 15 to be unable to be pressed. At this time, the movement of the drawer is restricted by the cooperation between the bottom end of the lifting block exposed outside the drawer and the lower drawer or the cabinet body.

[0054] Based on the above embodiments, the working principle of the present application is (taking the push-pull of the upper drawer 10 restricted by the lower drawer 11 as an example):

[0055] When the power supply of the power distribution cabinet stops, if the circuit breaker 40 is in the closed state, since the button 15 cannot be pressed, the bottom end of the lifting block has been exposed outside the bottom end of the upper drawer 10. In cooperation with the lower drawer 11, the upper drawer 10 cannot be pulled out, which reminds the technician to rotate the turning handle 12 to switch the circuit breaker 40 to the open state. Similarly, when the power distribution cabinet is to be powered on, if the circuit breaker 40 is in the closed state, due to the inability to press the button 15, the upper drawer 10 cannot be pushed in, which reminds the technician to rotate the turning handle 12 to switch the circuit breaker 40 to the open state.

[0056] Based on the above embodiments, the advantages of the present application are:

[0057] By providing a locking groove 421 at the turntable 42, the lifting and lowering realized by the sliding of the top end of the locking plate 51 along with the connecting plate 50 can be limited by the circumferential surface structure change after the rotation of the turntable 42, so as to detect the gate position state of the circuit breaker 40. At the same time, through the left and right sliding of the connecting plate 50 and the lifting and lowering of the lifting block 31 for drive interlocking, technicians can distinguish the gate position state of the circuit breaker 40 through the pressing state of the button 15, thus avoiding safety accidents caused by technicians directly pushing and pulling the drawer 15 due to negligence in detecting the gate position of the circuit breaker 40.

Claims

1. An MNS power distribution cabinet, characterized in that: The power distribution cabinet is arranged with a plurality of drawer units consisting of upper drawers and lower drawers, wherein a stop bar is provided at the top of each drawer, and the drawers include: The installation box has a front wall with a sliding slot in which a rotating piece is rotatably connected; The limiting assembly is composed of a moving plate and a lifting block; the moving plate is slidably connected to the installation box along the front-back direction, and the top end is connected to the limiting end of the rotating piece; the lifting block is slidably connected to the moving plate, and is used for the lifting block to be lifted and lowered while sliding so that the bottom end of the lifting block is exposed or hidden in the drawer; The locking assembly is composed of a connecting plate and a locking plate; the movable end of the rotating plate passes through the sliding groove in sequence and matches and penetrates the connecting plate, so as to slide the connecting plate left and right; the locking plate is arranged above the connecting plate through a rotation connection with the mounting plate, and is used to cooperate with the sliding of the connecting plate to realize the lifting and lowering of the locking plate; the lifting and lowering of the locking plate is limited by a turntable connected to the circuit breaker for rotation.

2. The MNS power distribution cabinet according to claim 1, characterized in that: The turntable is provided with a locking groove matching the top of the locking plate; the notch direction of the locking groove is changed to adapt to the adjustment of the circuit breaker gate position state; when the notch of the locking groove is directly below, the top of the locking plate is lifted up to lock with the locking groove through the sliding of the connecting plate.

3. The MNS power distribution cabinet according to claim 2, characterized in that: The top surface of the connecting plate is provided with an abutting slide groove; the bottom end of the locking plate is connected to the groove wall of the abutting slide groove, and the top end of the locking plate is arranged adjacent to the locking groove; When the notch of the locking groove is directly below, the up-and-down movement of the bottom end of the locking plate between the abutting slide groove and the top surface of the connecting plate outside the abutting slide groove cooperates with the left-right sliding of the connecting plate.

4. The MNS power distribution cabinet according to claim 3 is characterized in that: The mounting plate is also provided with a guide column; the locking plate is provided with an oblique guide channel cooperating with the guide column to limit the rotation angle of the locking plate.

5. The MNS power distribution cabinet according to claim 1, characterized in that: The mounting plate is matched and arranged on the right side of the mounting box and is rotatably connected with the turntable.

6. The MNS power distribution cabinet according to claim 1, characterized in that: Both sides of the movable end portion contacting the connection plate are arranged as inclined surfaces to match the movement of the movable end portion at the connection plate, and the transition between the movable end portion and the rotating sheet is a smooth arc surface structure.

7. The MNS power distribution cabinet according to claim 6, characterized in that: The top of the movable plate is provided with a mounting column; the limiting end is provided with a limiting groove matching the mounting column, so as to drive the rotating piece to rotate when the movable plate moves forward and backward.

8. The MNS power distribution cabinet according to claim 7, characterized in that: The movable plate is also connected to a spring; one end of the spring is sleeved on the outer wall of the mounting column and is arranged between the top of the movable plate and the limiting end, and the other end of the spring is matched and mounted on the mounting box.

9. The MNS power distribution cabinet according to claim 1, characterized in that: The drawer is connected with a button; the front end of the movable plate is connected with an abutment portion matching the button, and the end of the abutment portion extends and is plugged into one end of the button facing the inner chamber of the drawer.

10. The MNS power distribution cabinet according to claim 1, characterized in that: The side wall of the movable plate is provided with an oblique forward and upward lifting channel matching the lifting block; the top of the installation box is provided with an upper moving hole matching the lifting of the top of the lifting block.

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