Drawer for power distribution cabinet

Abstract

The utility model provides a drawer for a power distribution cabinet, and aims to solve the technical problem that time and labor are wasted when a drawer is rocked into or out of the power distribution cabinet by a hand-cranking handle in the prior art. The mounting box is formed by mounting a movable plate set on the top of a fixed plate set, and a sliding groove is formed in the front wall of the fixed plate set. A rotating piece is rotationally connected into the movable plate set, and the movable end of the rotating piece is matched with the sliding groove. The moving plate is slidably connected to the mounting box in the front-back direction, and the top end is connected with the limiting end of the rotating piece. The lifting block is connected to the moving plate in a sliding mode and can ascend and descend when sliding so that the lifting block can be exposed out of or hidden in the bottom end of the drawer. An installation box is installed in each drawer body in a matched mode. The movement of the drawer body is limited by the matching effect of the lifting block exposed out of the bottom end of the drawer and the lower layer drawer or the cabinet frame. Compared with a traditional hand-operated handle, the drawer can be completely pushed in or pulled out of the power distribution cabinet through front-back movement of the moving plate and lifting of the lifting block, and the operation convenience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and particularly relates to a drawer for a distribution cabinet. Background Art

[0002] For the convenience of the operation, installation and maintenance of the distribution cabinet, most of the distribution cabinet bodies adopt a retractable drawer design, and the use requirements of the distribution cabinet are met by pulling or pushing the drawer. Generally, due to cost and space considerations, the drawer is generally installed in the distribution cabinet in the form of a drawer group. However, since these drawers are slidably connected to the distribution cabinet, it is very easy to accidentally push the drawer into the distribution cabinet during the operation. If the technician has not checked the switch position state of the circuit breaker at this time, the drawer circuit breaker in the cabinet may be in the closed state, resulting in a power transmission accident.

[0003] Therefore, in order to ensure the use safety of the distribution cabinet, it is currently often necessary to use external tools to fully push the drawer into or start pulling out the drawer from the distribution cabinet. Among them, the hand-cranked handle is mostly used as an auxiliary tool to ensure that the circuit breaker is in the open state when the drawer is cranked in or out. However, due to the special structural requirements of the handle, it needs to be stored separately, so the technician needs to take it separately during operation, which is time-consuming and laborious, and there are many inconveniences in the process of using the drawer of the distribution cabinet. Utility Model Content

[0004] The utility model provides a drawer for a distribution cabinet to solve the problems raised in the above background art.

[0005] A drawer for a distribution cabinet, which comprises:

[0006] An installation box, which is composed of a movable plate group installed on the top of a fixed plate group; a sliding groove is provided on the front wall of the fixed plate group; a rotating piece is rotatably connected in the movable plate group; the movable end of the rotating piece is arranged to match the sliding groove;

[0007] A limiting component, which is composed 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 top end is connected to the limiting end of the rotating piece; the lifting block is slidably connected to the moving plate, so that the lifting block can lift while sliding to make the bottom end of the lifting block exposed or hidden in the drawer;

[0008] Wherein, the installation box is installed in each drawer in a matching manner; the bottom end of the lifting block is exposed outside the drawer, so that the sliding of the drawer is limited by the lower drawer or the cabinet frame.

[0009] Furthermore, a retaining strip matching the bottom end of the lifting block is provided at the top end of each drawer.

[0010] Furthermore, a lifting channel matching the lifting block is provided on the moving plate; the lifting channel is arranged obliquely forward and upward.

[0011] Further, the lifting block includes a connecting portion and a lifting portion; the lifting portion extends in the vertical direction; it is slidably connected to the lifting channel through the connecting portion; when the bottom end of the lifting block is completely exposed from the drawer, the connecting portion is disposed at the bottom end of the lifting channel.

[0012] Further, a first plugging portion is fixedly provided along the edge of the sliding groove.

[0013] The movable plate group includes a top plate and side plates; a jack matching the first plugging portion is penetrated through the top plate; a rotating piece is rotatably connected to the bottom end of the top plate; the top end of the side plate is connected to one side of the top plate, and a second plugging portion is provided at its bottom end; a second plugging groove matching the second plugging portion is opened at the inner bottom end of the fixed plate group.

[0014] Further, the fixed plate group is composed of a front plate and a rear plate respectively provided before and after a bottom plate; the rotating piece is rotatably connected to the inner top wall of the movable plate group through a fixed shaft.

[0015] Further, an upper moving hole matching the top end of the lifting block is penetrated through the top plate.

[0016] Further, the limiting end is connected to the top of the moving plate by sleeving on the outer wall of the mounting post; one end of a spring is also sleeved on the outer wall of the mounting post between the moving plate and the limiting end, and the other end of the spring is mounted on the mounting box.

[0017] Further, each drawer is connected with a button; the front end of the moving plate is arranged to match the button, so that the front end of the moving plate is plugged into one end of the button facing the inner chamber of the drawer body.

[0018] Further, the power distribution cabinet further includes a locking assembly, including a connecting plate, a support plate and a locking plate.

[0019] The connecting plate is penetrated by the movable end for the left and right sliding of the connecting plate.

[0020] The support plate is arranged to match the right side of the mounting box, and a turntable rotatably connected to the circuit breaker is movably connected thereto.

[0021] The locking plate is movably connected between the connecting plate and the turntable, 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 limited by the rotation of the turntable.

[0022] Compared with the prior art, the beneficial effects of the present utility model are:

[0023] (1) Compared with the traditional hand-cranked handle, the drawer body can be completely pushed into or pulled out of the power distribution cabinet by moving the moving plate forward and backward in coordination with the lifting of the lifting block, which greatly improves the convenience of operation and avoids the possibility that the technician accidentally pushes the drawer body into the cabinet when the circuit breaker is closed, causing power supply safety accidents;

[0024] (2) The locking assembly and the limit assembly are interlocked through the connecting plate, so that the gate position status of the circuit breaker can be fed back to indicate whether the button can be pressed to push or pull the drawer, thereby reminding the technician that the drawer can be pushed or pulled by pressing the button only when the circuit breaker is in the open position, thereby avoiding safety accidents caused by the technician directly pushing or pulling the drawer due to negligence in checking the gate position of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A side view of a drawer installation box for a power distribution cabinet according to an embodiment of the present application, in which a limit assembly is assembled;

[0027] Figure 2 A top view of a fixed plate assembly of a drawer for a power distribution cabinet according to an embodiment of the present application, in which a limiting component is assembled;

[0028] Figure 3 A bottom view of a rotating piece of a drawer for a power distribution cabinet according to an embodiment of the present application being assembled on a movable plate assembly;

[0029] Figure 4 This is a schematic diagram of the coordination between an installation box and a lower drawer provided in a drawer body of a drawer for a power distribution cabinet in an embodiment of the present application.

[0030] Reference numerals:

[0031] 10. Baffle bar; 11. Power distribution cabinet; 12. Drawer body;

[0032] 2. Installation box; 20a. Top plate; 20b. Side plate; 200. Upper movable hole; 202. Second plug-in portion; 21a. Front plate; 21b. Back plate; 21c. Bottom plate; 211. First plug-in portion; 212. Second plug-in slot; 22. Sliding slot; 23. Rotating piece; 230. Movable end portion; 231. Position-limiting end portion; 24. Fixed shaft;

[0033] 3. Limit component; 30. Moving plate; 300. Lifting channel; 31. Lifting block; 310. Lifting part; 311. Connecting part; 32. Mounting column; 33. Spring;

[0034] 40. Circuit breaker; 41. Rotating shaft; 42. Turntable;

[0035] 50. Connecting plate; 51. Locking plate; 52. Support plate. Detailed implementation manner

[0036] 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 regarded as being exemplary in nature rather than restrictive.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "top", "bottom", "inner", "outer", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship 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 should not be construed as a limitation to the present invention.

[0038] In the present invention, unless otherwise clearly defined 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, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of 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 circumstances.

[0039] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0040] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described hereinafter. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between various embodiments and / or settings discussed.

[0041] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0042] Embodiment 1

[0043] The embodiment of the present utility model provides a drawer for a power distribution cabinet. Please refer to Figures 1 - 3 , which includes a drawer body 12, an installation box 2 and a limiting component 3.

[0044] Specifically,

[0045] The drawer body 12 has a circuit breaker 40 in its inner chamber. One side of the circuit breaker 40 is connected to the busbar, and the other side is connected to a rotating shaft 41. Each drawer body 12 may be connected with a button. Each drawer body 12 is also connected with a turning handle matching the rotating shaft 41. By rotating the turning handle, the rotating shaft 41 is driven to rotate, so as to control the closing or opening of the circuit breaker 40. The drawer body 12 is slidably connected in the power distribution cabinet 11 to realize the pushing and pulling of the drawer body 12. Usually, there is another drawer or cabinet body below a drawer body 12 in the power distribution cabinet 11.

[0046] The installation box 2 is installed in the drawer body 12 and includes a fixed plate group and a movable plate group. The movable plate group is matched and installed on the top of the fixed plate group to enclose a detachable box structure.

[0047] The fixed plate assembly is composed of a bottom plate 21c with a front plate 21a and a rear plate 21b respectively arranged in front and back. A sliding groove 22 is provided at the top of the front plate, and a first plug-in portion 211 is fixed to the left groove edge of the sliding groove 22. A moving groove is provided on the left side wall of the front plate. A rear moving hole is penetrated through the rear plate 21b along the front-to-back direction.

[0048] The movable plate group includes a top plate 20a and a side plate 20b, and the side plate 20b is connected to one side of the top plate 20a. The rotating piece 23 is rotatably connected to the bottom end of the top plate. The top plate 20a is penetrated with a socket matching the first plug-in portion 211. When the movable plate group is installed on the fixed plate group, the first plug-in portion 211 is plugged into the socket, and a second plug-in portion 202 is provided at the bottom of the side plate, and a second plug-in groove 212 matching the second plug-in portion 202 is provided at the top of the bottom plate to enclose a detachable box structure. At the same time, a rotating piece 23 is rotatably connected to the bottom end of the top plate 20a through a fixed shaft 24. The rotating piece 23 includes a rotating piece body, a limit end 231 and a movable end 230. The two ends of the rotating piece body are respectively connected to the limit end 231 and the movable end 230. The movable end portion 230 passes through and is exposed in the sliding groove 22 . At this time, by moving the movable end portion 230 to the left, the rotating piece 23 can rotate clockwise relative to the installation box 2 in the sliding groove 22 .

[0049] The limit assembly 3 includes a moving plate 30 and a lifting block 31. The moving plate 30 is arranged to penetrate the front plate 21a and the rear plate 21b in sequence. The lifting block 31 is connected to the moving plate 30 by sliding obliquely to match the movement of the moving plate 30 in the front-to-back direction, so as to adjust whether the bottom end of the lifting block 31 is exposed or hidden in the drawer body 12. When the moving plate 30 has not slid backward, the bottom end of the lifting block penetrates and is exposed at the bottom of the drawer body; when the moving plate 30 moves backward and causes the lifting block 31 to slide upward along the lifting channel 300, the bottom end of the lifting block can be hidden in the drawer body 12.

[0050] After the rear end of the movable plate 30 is aligned with the rear moving hole, its front end can be stuck in the moving groove, so that the rear end of the movable plate can pass through the rear moving hole when moving backward. The limiting end 231 is connected to the top of the movable plate through the mounting column 32, so that the forward and backward movement of the movable plate 30 can drive the rotation of the rotating piece 23. In order for the movable plate 30 that slides backward to automatically return to its original position forward, a spring 33 is also installed on the top of the movable plate. One end of the spring is sleeved on the outer wall of the mounting column 32 and is arranged between the movable plate 30 and the limiting end 231; the other end of the spring is installed on the front plate 21a. A lifting channel 300 obliquely facing forward and upward is passed through the side wall of the movable plate. The front end of the movable plate is matched with a button, so that the front end of the movable plate can be plugged into one end of the button facing the inner chamber of the drawer body, thereby realizing the backward movement of the movable plate 30 by pressing the button.

[0051] The lifting block 31 includes a connecting portion 311 and a lifting portion 310. Through the sliding connection of the connecting portion 311 with the lifting channel 300, the lifting portion 310 is lifted and lowered on the moving plate 30. The lifting of the lifting portion 310 needs to cooperate with the forward and backward movement of the moving plate, and while the lifting portion 310 is lifted and lowered, the adjustment of the bottom end of the lifting portion being exposed or hidden in the drawer body 12 can be achieved. Preferably, the lifting portion 310 is arranged along the vertical direction. The top end of the lifting portion is arranged to match the upper moving hole 200.

[0052] Taking the cooperation between the upper and lower drawers as an example: When the moving plate 30 has not moved backward, the bottom end of the lifting portion 310 passes through and is exposed at the bottom of the upper drawer. Through the cooperation between the bottom end of the lifting portion and the lower drawer, the pushing and pulling of the upper drawer can be blocked. When the moving plate slides backward to drive the lifting block to rise, the bottom end of the lifting portion can be hidden in the drawer body 12, thereby realizing the free pushing and pulling of the upper drawer.

[0053] Based on the above embodiments, the working principle of the present application is as follows:

[0054] By pressing the button, the moving plate 30 slides backward, thereby driving the lifting block 31 to rise. At the same time, the bottom end of the lifting portion is hidden in the drawer body 12, thereby realizing the free pushing and pulling of the drawer body 12; by releasing the button, the moving plate 30 automatically returns forward to its original position under the action of the spring 33, so that the bottom end of the lifting portion is exposed at the bottom end of the drawer body again, thereby restricting the pushing and pulling of the drawer through the cooperation between the bottom end of the lifting portion and the lower drawer body or the cabinet body. Whether the technician is about to just pull out the drawer or fully push it in, if the button is not pressed first to hide the bottom end of the lifting block in the drawer body 12, the pushing and pulling of the drawer body 12 will be restricted.

[0055] Based on the above embodiments, the advantages of the present application are as follows:

[0056] Compared with the traditional hand-cranked handle, the full pushing or pulling out of the drawer body 12 from the power distribution cabinet 11 is realized by the forward and backward movement of the moving plate 30 in cooperation with the lifting of the lifting block 31, which greatly improves the operation convenience and also avoids the technician accidentally pushing the drawer body 12 into the power distribution cabinet 11 when the circuit breaker 40 is closed, resulting in a power transmission safety accident.

[0057] Embodiment 2

[0058] Based on Embodiment 1, in order to further improve the safety of the drawer for the power distribution cabinet, please refer to Figure 4 . The drawer for the power distribution cabinet further includes a locking assembly. The locking assembly includes a connecting plate 50, a support plate 52 and a locking plate 51. Among them,

[0059] The connecting plate 50 is matched and penetrated by the movable end portion 230 and exposed, so that when the movable end portion 230 rotates, it can drive the connecting plate 50 to slide left and right. The support plate 52 is arranged at the rear side of the connecting plate 50 and is installed on the top of the bottom plate 21c. The support plate 52 is rotatably connected to the rotating disk 42 at the plate surface near the top thereof. The locking plate 51 is movably connected between the connecting plate 50 and the rotating disk 42, and is used to cooperate with the sliding of the connecting plate 50 to realize the lifting and lowering of the locking plate 51. At the same time, the lifting and lowering of the locking plate will be limited by the rotation of the turntable 42, that is, the turntable 42 rotates due to the switching of the circuit breaker gate position state, and the lifting and lowering of the locking plate 51 can be adjusted. Specifically, when the circuit breaker 40 is open, there is space between the turntable 42 and the locking plate 51 to enable the locking plate 51 to be lifted and lowered, and the locking plate 51 can be lifted up to lock with the turntable 42; when the circuit breaker 40 is closed, there is no space between the turntable 42 and the locking plate 51 to enable the locking plate 51 to be lifted and lowered.

[0060] When the circuit breaker 40 is opened, the movable plate 30 moves backward, driving the lifting block 31 to rise, and the leftward movement of the movable end 230 drives the connecting plate 50 to move leftward, thereby lifting the top of the locking plate 51 upward to lock with the rotating disk 42, and the push and pull of the drawer body 12 is not restricted. If the circuit breaker 40 is closed, there is no space between the rotating disk 42 and the locking plate 51 to enable the locking plate 51 to be lifted and lowered, which ultimately leads to the inability to move backward. At this time, the push and pull of the drawer is restricted by the cooperation of the lifting block exposed at the bottom of the drawer and the drawer or cabinet below.

[0061] That is to say, the locking assembly and the limit assembly 3 are interlocked by the connecting plate 50, so that the gate position state of the circuit breaker 40 can be fed back by whether the button can be pressed to realize the push and pull of the drawer, thereby reminding the technician that the drawer can be pushed in or pulled out by pressing the button only when the circuit breaker 40 is open, thereby avoiding the technician from directly pushing and pulling the drawer body 12 due to negligence in detecting the gate position of the circuit breaker 40 and causing safety accidents.

Claims

1. A drawer for a power distribution cabinet, characterized in that: The drawer for the power distribution cabinet comprises: The installation box is composed of a movable plate group installed on the top of a fixed plate group; a sliding groove is provided on the front wall of the fixed plate group; a rotating piece is rotatably connected inside the movable plate group; and a movable end of the rotating piece is matched with the sliding groove; 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; Wherein, the installation box is matched and installed in each drawer; the bottom end of the lifting block is exposed in the drawer, so that the sliding of the drawer is limited by the lower drawer or the cabinet frame.

2. A drawer for a power distribution cabinet according to claim 1, characterized in that: A stop bar matching the bottom end of the lifting block is arranged at the top end of each drawer.

3. A drawer for a power distribution cabinet according to claim 2, characterized in that: The movable plate is provided with a lifting channel matching the lifting block; the lifting channel is arranged obliquely forward and upward.

4. A drawer for a power distribution cabinet according to claim 3, characterized in that: The lifting block includes a connecting portion and a lifting portion; the lifting portion extends in a vertical direction; and is slidably connected to the lifting channel through the connecting portion; when the bottom end of the lifting block is completely exposed in the drawer, the connecting portion is arranged at the bottom end of the lifting channel.

5. The drawer for a power distribution cabinet according to claim 1, characterized in that: A first plug-in portion is fixedly provided along the groove of the sliding groove; The movable plate group includes a top plate and a side plate; the top plate is penetrated by a socket matching the first plug-in part; the bottom end of the top plate is rotatably connected to the rotating plate; the top end of the side plate is connected to one side of the top plate, and a second plug-in part is provided at the bottom end; the bottom end of the fixed plate group is provided with a second plug-in groove matching the second plug-in part.

6. A drawer for a power distribution cabinet according to claim 1, characterized in that: The fixed plate group is composed of a bottom plate with a front plate and a rear plate respectively arranged in front and behind; the rotating piece is rotatably connected to the inner top wall of the movable plate group through a fixed shaft.

7. A drawer for a power distribution cabinet according to claim 5, characterized in that: The top plate is penetrated by an upper moving hole matching the top end of the lifting block.

8. The drawer for a power distribution cabinet according to claim 1, characterized in that: The limiting end is connected to the top of the movable plate by being sleeved on the outer wall of the mounting column; one end of a spring is also sleeved on the outer wall of the mounting column between the movable plate and the limiting end, and the other end of the spring is installed on the mounting box.

9. The drawer for a power distribution cabinet according to claim 7, characterized in that: Each drawer is connected with a button; the front end of the movable plate is matched with the button, so that the front end of the movable plate is plugged into one end of the button facing the inner chamber of the drawer body.

10. The drawer for a power distribution cabinet according to claim 3, characterized in that: The power distribution cabinet also includes a locking assembly, including a connecting plate, a support plate and a locking plate; The connecting plate is matched and penetrated by the movable end portion so as to enable the connecting plate to slide left and right; The support plate is matched and arranged on the right side of the installation box, and is movably connected to a turntable rotatably connected to the circuit breaker; The locking plate is movably connected between the connecting plate and the rotating disk, 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 the rotation of the rotating disk.

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