Switch cabinet interlocking structure and interlocking method

Abstract

The invention discloses a switch cabinet interlocking structure and an interlocking method. The switch cabinet interlocking structure comprises a first plate, a second plate, an elastic piece, a limiting piece and a sliding block, the first plate is vertically installed on the trolley, the second plate is located between the first plate and the socket, the second plate is provided with a vertical section and a horizontal section, an inclined block is arranged on the face, facing the socket, of the vertical section, and the inclined block is partially located in the path where the plug is inserted into the socket; the elastic piece is used for limiting the sliding block to move in the first direction. The limiting piece is used for limiting the sliding block to move in the first direction. Compared with the prior art, when the plug is inserted into the socket, the plug applies downward force to the inclined block on the second plate, so that the horizontal section of the second plate is pushed to move in the direction away from the socket, the sliding block is limited in the limiting piece, and movement of the trolley is limited. And after the plug is pulled out, the second plate can automatically reset under the action of the elastic piece, so that the sliding block is limited by the limiting piece. In addition, the interlocking device is of a mechanical structure and is few in component, low in failure probability and reliable in locking.

Description

Technical Field

[0001] The present invention relates to the field of electrical equipment, and in particular to a switch cabinet interlocking structure and an interlocking method. Background Art

[0002] When the switch cabinet is working normally, the plug of the heavy-duty connector is plugged into the trolley platform inside the cabinet, and the secondary circuit of the circuit breaker in the switch cabinet is connected to the secondary circuit of the cabinet through the heavy-duty connector. When it is necessary to open the cabinet door and move out the trolley, the heavy-duty connector plug should be unplugged and disconnected and placed on the bracket inside the cabinet. When the trolley enters the cabinet and is ready to work, the heavy-duty connector plug is re-plugged into the trolley platform. During use, sometimes the heavy-duty connector plug is forgotten to be unplugged when the trolley is moved out of the switch cabinet, which can easily cause damage to the connector and safety accidents. Summary of the invention

[0003] The present application provides a switch cabinet interlocking structure and an interlocking method to solve the problem that in the existing switch cabinet, when a trolley is moved out of the switch cabinet, the heavy-load connector plug is not unplugged, which may easily cause connector damage and safety accidents.

[0004] In order to achieve the above-mentioned purpose, this application adopts the following technical solution.

[0005] A switch cabinet interlocking structure comprises a first plate, a second plate, an elastic member, a limit member and a slider; the switch cabinet is provided with a cabinet door, a trolley which can slide along a first direction is provided in the switch cabinet, and a socket is provided at one end of the top surface of the trolley close to the cabinet door;

[0006] The first plate is vertically mounted on the trolley and is located between the cabinet door and the socket, and a first hole is provided on the first plate;

[0007] The second plate is located between the first plate and the socket, the second plate has a vertical section and a horizontal section connected to the vertical section, the horizontal section passes through the first hole; a slanted block is provided on a side of the vertical section facing the socket, the slanted block is partially located in the path of the plug inserted into the socket, the slanted block has a first slanted surface, the distance between the bottom of the first slanted surface and the second plate is greater than the distance between the top of the first slanted surface and the second plate;

[0008] The elastic member is installed on the second plate, and the elastic member makes the second plate have a tendency to move away from the first plate;

[0009] The limiting member is installed in the switch cabinet at one end close to the cabinet door, and is used to limit the movement of the slider along the first direction;

[0010] The slider is slidably installed at one end of the switch cabinet close to the cabinet door, and the slider can slide along a second direction perpendicular to the first direction; when the slider slides to the first position, one end of the slider abuts against the limit member, and the other end is aligned with the horizontal section; when the slider slides to the second position, it is separated from the limit member.

[0011] In some embodiments, a trolley bracket is provided at the bottom of the switch cabinet, and the trolley is slidably connected to the trolley bracket.

[0012] In some embodiments, two mounting plates are vertically spaced apart at one end of the trolley bracket close to the cabinet door, and the second plate is located between the two mounting plates; each mounting plate includes a first mounting plate and a second mounting plate perpendicular to the first mounting plate; the first mounting plate is connected to the trolley bracket; the slider is embedded in a slide rail, and the two ends of the slide rail are respectively connected to the two second mounting plates.

[0013] In some embodiments, a locking device is installed on the cabinet door to prevent the cabinet door from being opened when the trolley is in the working position.

[0014] In some embodiments, a circuit breaker is provided on the trolley, and the circuit breaker is electrically connected to the socket.

[0015] In some embodiments, a second slope is provided below the first slope, and a distance between a top of the second slope and the second plate is greater than a distance between a bottom of the second slope and the second plate.

[0016] In some embodiments, the limit member includes a third plate and a fourth plate and a fifth plate respectively connected vertically to both ends of the third plate, and the fourth plate is fixedly connected to the switch cabinet; when the slider slides to the first position, one end of the slider abuts against the third plate and is stuck between the fourth plate and the fifth plate.

[0017] In some embodiments, the elastic member is a compression spring, one end of the compression spring is fixedly connected to the first plate, and the other end of the compression spring is fixedly connected to the second plate.

[0018] In some embodiments, the elastic member is a tension spring, one end of which is fixedly connected to the second plate, and the other end of which is fixedly connected to the socket or the trolley.

[0019] Based on the same inventive concept, the present application also provides a switch cabinet interlocking method, which is applicable to the above switch cabinet interlocking structure, and comprises the following steps:

[0020] Push the trolley into the switch cabinet, insert the plug into the socket, and push the inclined block to make the second plate overcome the spring force of the elastic member and move toward the cabinet door, so that the slider is clamped between the second plate and the limit member;

[0021] Move the trolley to the working position at the end of the switch cabinet. At this time, the cabinet door cannot be opened due to the restriction of the locking device;

[0022] When the trolley needs to be moved out, the trolley is pulled out to the test position at the head end of the switch cabinet, and the plug is unplugged, so that the second plate is reset under the action of the elastic member, thereby releasing the restriction on the slider, and the trolley can be moved out of the switch cabinet.

[0023] This application has at least the following technical effects or advantages:

[0024] 1. By setting the interlocking device of the present application, when the plug is inserted into the socket, the plug applies a downward force to the inclined block on the second plate, thereby pushing the horizontal section of the second plate to move away from the socket, thereby restricting the slider within the limit piece and limiting the movement of the trolley.

[0025] 2. After unplugging the plug, the second plate can automatically reset under the action of the elastic member, thereby contacting the limiting member to limit the slider.

[0026] 3. The present application is a mechanical interlocking device with few components, low failure probability and reliable locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a switch cabinet interlocking structure in an embodiment of the present application;

[0028] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0029] Figure 3 for Figure 1 Left view (partial);

[0030] Figure 4 for Figure 1 A top view of

[0031] Figure 5 for Figure 4 Schematic diagram of the enlarged portion B. DETAILED DESCRIPTION

[0032] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Embodiment 1

[0034] See also Figure 1-Figure 5 , a switch cabinet interlocking structure, the switch cabinet 1 is provided with a cabinet door 2, and the switch cabinet 1 is provided with a Figure 1The trolley 3 slides in the switch cabinet 1 in the first direction (from left to right in the figure). Specifically, a trolley bracket 31 is fixedly installed at the bottom of the switch cabinet 1, and the trolley 3 is slidably connected to the trolley bracket 31. A socket 4 and a circuit breaker 5 are installed on the top surface of the trolley 3, and the socket 4 is electrically connected to the circuit breaker 5. The socket 4 is located at one end of the trolley 3 close to the cabinet door 2.

[0035] The interlocking structure includes a first plate 6, a second plate, an elastic member 8, a stopper 9 and a slider 10, wherein:

[0036] The first plate 6 is vertically mounted on the trolley 3 and is located between the cabinet door 2 and the socket 4 . A first hole 61 is provided on the first plate 6 .

[0037] The second plate is located between the first plate 6 and the socket 4, and has a vertical section 71 and a horizontal section 72 connected to the vertical section 71, and the horizontal section 72 passes through the first hole 61. The second plate is provided with an inclined block 73 on one side facing the socket 4, and the inclined block 73 is partially located in the path where the plug 41 is inserted into the socket 4 (such as Figure 1 In the embodiment shown by the arrow, the inclined block 73 has a first inclined surface (upper inclined surface), and the distance between the bottom of the first inclined surface and the second plate is greater than the distance between the top of the first inclined surface and the second plate.

[0038] The elastic member 8 is mounted on the second plate, and the elastic member 8 makes the vertical section 71 of the second plate tend to move away from the first plate 6. Specifically, the elastic member 8 can be a compression spring, one end of which is fixedly connected to the first plate 6, and the other end of which is fixedly connected to the vertical section 71 of the second plate. The elastic member can also be a tension spring, the left end of which is fixedly connected to the second plate, and the right end of which is fixedly connected to the socket 4 or the trolley 3.

[0039] The limiter is installed on one end of the switch cabinet 1 close to the cabinet door 2, and is used to limit the movement of the slider in the first direction. Specifically, the limiter includes a third plate 91 and a fourth plate 92 and a fifth plate 93 respectively connected to both ends of the third plate 91 vertically, and the fourth plate 92 is fixedly connected to the switch cabinet 1.

[0040] The slider 10 is slidably mounted on one end of the trolley 3 close to the cabinet door 2. The slider 10 can be moved in a second direction ( Figure 1The slider 10 slides inward / outward perpendicular to the paper plane). When the slider 10 slides to the first position, one end of the slider 10 abuts against the third plate 91 and is stuck between the fourth plate 92 and the fifth plate 93, and the other end is aligned with the horizontal section 72. When the slider 10 slides to the second position, it is separated from the limiter. Specifically, two mounting plates 32 are vertically spaced at one end of the trolley bracket 31 close to the cabinet door 2, and the second plate 7 is located between the two mounting plates 32. Each mounting plate 32 includes a first mounting plate and a second mounting plate perpendicular to the first mounting plate, wherein the first mounting plate is connected to the trolley bracket 31. The slider 10 is embedded in a slide rail 101, and the two ends of the slide rail 101 are respectively connected to the two second mounting plates. A handle 102 is also provided on the side of the slider 10 close to the cabinet door 2, and a slide groove is provided on the slide rail 101 for the handle 102 to pass through, so that the operator can slide the slider 10 from the outside.

[0041] Preferably, a locking device is installed on the cabinet door 1 to prevent the cabinet door 2 from being opened when the trolley 3 is in the working position. The locking device can adopt a cabinet door and circuit breaker slide interlocking device of a DC cabinet disclosed in Patent No. ZL202110115580.9.

[0042] Preferably, there is a second inclined surface (lower inclined surface) below the first inclined surface, and the distance between the top of the second inclined surface and the second plate is greater than the distance between the bottom of the second inclined surface and the second plate.

[0043] The working process of the above switch cabinet interlocking structure is as follows:

[0044] When the trolley 3 has been pushed into the switch cabinet 1 and is ready to work, the plug 41 will be plugged into the socket 4 from top to bottom. During the plugging, the inclined block 73 will receive the lateral force applied by the plug 41. The inclined block 73 and the second plate will overcome the spring force of the elastic member 8 and move to the left, so that the horizontal section 72 moves to the end of the slider 10. At this time, the slider 10 is stuck between the horizontal section 72 and the limiter. The slider 10 cannot slide in the first direction under the limit of the limiter, and the trolley 3 cannot be moved out. At the same time, the slider 10 cannot slide in the second direction under the limit of the horizontal section 72. When entering the working position, the trolley 3 and the components above it move to the right as a whole. At this time, although the horizontal section 72 of the second plate releases the limit on the slider 10, the cabinet door 2 cannot be opened due to the restriction of the locking device, and the trolley 3 cannot be moved out of the switch cabinet 1. When the trolley 3 needs to be moved out, the trolley 3 is moved as a whole to the leftmost test position (the cabinet door can be opened at this time). At this time, the horizontal section 72 of the second plate restores the limit on the slider 10. Only when the plug 41 is pulled out and the second plate is reset to the right under the action of the elastic member 8, the restriction on the slider 10 can be released, thereby moving the trolley 3 out of the switch cabinet 1.

[0045] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0046] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the intention that the claimed invention requires more features than those expressly recited in each claim. Rather, as reflected in the claims, inventive aspects lie in less than all of the features of the individual embodiments previously disclosed. Therefore, the claims that follow the detailed description are hereby expressly incorporated into the detailed description, with each claim itself serving as a separate embodiment of the present invention.

[0047] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims below, any one of the claimed embodiments may be used in any combination.

[0048] As used herein, unless otherwise specified, the use of ordinal numbers "first," "second," "third," etc. to describe common objects merely indicates that different instances of similar objects are involved, and is not intended to imply that the objects so described must have a given order in time, space, order, or in any other manner.

[0049] Although the present invention has been described according to a limited number of embodiments, it will be apparent to those skilled in the art, with the benefit of the above description, that other embodiments may be envisioned within the scope of the invention thus described. In addition, it should be noted that the language used in this specification is selected primarily for readability and teaching purposes, rather than for explaining or defining the subject matter of the present invention. Therefore, many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the appended claims. The disclosure of the present invention is illustrative, not restrictive, with respect to the scope of the present invention, which is defined by the appended claims.

[0050] Finally, it should be noted that the present invention does not explain in detail the common knowledge recognized by technicians in this field. The above is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A switch cabinet interlocking structure, characterized in that: It comprises a first plate, a second plate, an elastic member, a limit member and a slider; the switch cabinet is provided with a cabinet door, a trolley which can slide along a first direction is provided in the switch cabinet, and a socket is provided at one end of the top surface of the trolley close to the cabinet door; The first plate is vertically mounted on the trolley and is located between the cabinet door and the socket, and a first hole is provided on the first plate; The second plate is located between the first plate and the socket, the second plate has a vertical section and a horizontal section connected to the vertical section, the horizontal section passes through the first hole; a slanted block is provided on a side of the vertical section facing the socket, the slanted block is partially located in the path of the plug inserted into the socket, the slanted block has a first slanted surface, the distance between the bottom of the first slanted surface and the second plate is greater than the distance between the top of the first slanted surface and the second plate; The elastic member is installed on the second plate, and the elastic member makes the second plate have a tendency to move away from the first plate; The limit member is installed at one end of the switch cabinet close to the cabinet door, and is used to limit the movement of the slider along the first direction; the slider is slidably installed at one end of the switch cabinet close to the cabinet door, and the slider can slide along a second direction perpendicular to the first direction; when the slider slides to the first position, one end of the slider abuts against the limit member, and the other end is aligned with the horizontal section; when the slider slides to the second position, it is separated from the limit member.

2. The switch cabinet interlocking structure according to claim 1, characterized in that: A trolley bracket is provided at the bottom of the switch cabinet, and the trolley is slidably connected to the trolley bracket.

3. The switch cabinet interlocking structure according to claim 2 is characterized in that: The trolley bracket has two mounting plates vertically spaced apart at one end close to the cabinet door, and the second plate is located between the two mounting plates; each mounting plate includes a first mounting plate and a second mounting plate perpendicular to the first mounting plate; the first mounting plate is connected to the trolley bracket; the slider is embedded in a slide rail, and the two ends of the slide rail are respectively connected to the two second mounting plates.

4. The switch cabinet interlocking structure according to any one of claims 1 to 3, characterized in that: A locking device is installed on the cabinet door, which is used to prevent the cabinet door from being opened when the trolley is located at the working position.

5. The switch cabinet interlocking structure according to any one of claims 1 to 3, characterized in that: A circuit breaker is provided on the trolley, and the circuit breaker is electrically connected to the socket.

6. The switch cabinet interlocking structure according to any one of claims 1 to 3, characterized in that: A second inclined surface is provided below the first inclined surface, and the distance between the top of the second inclined surface and the second plate is greater than the distance between the bottom of the second inclined surface and the second plate.

7. The switch cabinet interlocking structure according to any one of claims 1 to 3, characterized in that: The limiting member includes a third plate and a fourth plate and a fifth plate respectively connected vertically to two ends of the third plate, and the fourth plate is fixedly connected to the switch cabinet; when the slider slides to the first position, one end of the slider abuts against the third plate and is stuck between the fourth plate and the fifth plate.

8. The switch cabinet interlocking structure according to any one of claims 1 to 3, characterized in that: The elastic member is a compression spring, one end of which is fixedly connected to the first plate, and the other end of which is fixedly connected to the second plate.

9. The switch cabinet interlocking structure according to any one of claims 1 to 3, characterized in that: The elastic member is a tension spring, one end of which is fixedly connected to the second plate, and the other end of which is fixedly connected to the socket or the trolley.

10. A switch cabinet interlocking method, applicable to the switch cabinet interlocking structure according to any one of claims 1 to 9, characterized in that: The steps include: Push the trolley into the switch cabinet, insert the plug into the socket, and push the inclined block to make the second plate overcome the spring force of the elastic member and move toward the cabinet door, so that the slider is clamped between the second plate and the limit member; Move the trolley to the working position at the end of the switch cabinet. At this time, the cabinet door cannot be opened due to the restriction of the locking device; When the trolley needs to be moved out, the trolley is pulled out to the test position at the head end of the switch cabinet, and the plug is unplugged, so that the second plate is reset under the action of the elastic member, thereby releasing the restriction on the slider, and the trolley can be moved out of the switch cabinet.

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