Cabinet door interlocking mechanism for switch cabinet

Abstract

The utility model discloses a cabinet door interlocking mechanism for a switch cabinet, which comprises a cabinet body and a cabinet door, an interlocking mechanism and a circuit breaker operating mechanism are arranged in the cabinet body, an interlocking rod and an interlocking plate are arranged in the interlocking mechanism, a limiting device positioned at the bottom of the interlocking plate is rotatably mounted in the circuit breaker operating mechanism, and the limiting device is positioned at the bottom of the interlocking plate. The circuit breaker operating mechanism is in transmission connection with the interlocking rod so as to drive the interlocking rod to lock or unlock the cabinet door, and in the unlocking process of the cabinet door, the limiting device rotates and blocks the bottom of the interlocking plate. The switch-on and switch-off operation shaft is utilized to perform switch-on and switch-off rotation to drive the limiting device to rotate, when the circuit breaker is in a switch-on state, the protruding part of the limiting block abuts against the surface of the limiting plate, and when the cabinet door is lifted violently, the limiting plate is abutted by the limiting block, so that the interlocking rod cannot move upwards forcibly, and the cabinet door cannot be opened.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a cabinet door interlocking mechanism for a switch cabinet. Background Art

[0002] The upper isolation, upper grounding and lower circuit breaker solution (referred to as the upper isolation circuit breaker solution). The difference between this solution and the upper circuit breaker, lower isolation and lower grounding solution (referred to as the lower isolation circuit breaker solution in this article) is that the grounding path of the former is to close the grounding switch, and finally through the closing circuit breaker to achieve the final reliable grounding action. The lower door can only be opened after reliable grounding. The lower door cannot be opened if the grounding switch is not closed or the circuit breaker is not closed. At the same time, after the lower door is opened, the grounding state cannot be released to reliably ensure the personal safety of the operating personnel.

[0003] There are many interlocking structures for the current upper isolation circuit breaker solutions on the market, but the following situations exist:

[0004] 1. Other manufacturers’ solutions have a large number of components, which are relatively unreliable, or are cumbersome to adjust and inefficient.

[0005] 2. In some solutions, the lock is located close to the side of the cabinet door, which makes locking the door poor and cannot provide reliable interlocking effect. Therefore, this innovation is made, which greatly reduces the number of parts and at the same time, the door lock is centered and has reliable strength. Summary of the invention

[0006] The purpose of the utility model is to provide a cabinet door interlocking mechanism for a switch cabinet to solve the interlocking problem of the current upper isolating circuit breaker solution mentioned in the above background technology. There are many structures on the market, but the following problems exist: 1. The number of parts in the solutions of other manufacturers is large, which is relatively easy to be unreliable, or the adjustment is cumbersome and the efficiency is not high; 2. In some solutions, the position of the lock is close to the edge of the cabinet door, and the effect of locking the lower door is not good, and it cannot achieve a reliable interlocking effect. Therefore, this innovation is made, that is, the number of parts is greatly reduced, and the door lock position is centered, and the strength is reliable.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cabinet door interlocking mechanism for a switch cabinet, comprising a cabinet body and a cabinet door, wherein an interlocking mechanism and a circuit breaker operating mechanism are arranged in the cabinet body, an interlocking rod and an interlocking plate are arranged in the interlocking mechanism, a limiting device located at the bottom of the interlocking plate is rotatably installed in the circuit breaker operating mechanism, the circuit breaker operating mechanism is transmission-connected with the interlocking rod to drive the interlocking rod to lock or unlock the cabinet door, and during the unlocking process of the cabinet door, the limiting device rotates and blocks at the bottom of the interlocking plate.

[0008] Preferably, the interlocking mechanism also includes a limit frame, the bottom of the interlocking plate is fixedly connected to the limit frame, the bottom of the limit frame is fixedly connected to an interlocking rod, the circuit breaker operating mechanism is provided with an opening and closing operating shaft, one end of the opening and closing operating shaft is fixedly connected to a limit device, and the limit device passes through the isolation plate and is rotatably connected between the interlocking plate and the limit frame.

[0009] Preferably, the limiting device comprises a mechanical crank arm and a limiting block, the mechanical crank arm is sleeved on the surface of the opening and closing operating shaft, and the limiting block is fixedly connected to an end surface of one end of the opening and closing operating shaft.

[0010] Preferably, a connection port is provided on the top of the limiting frame, a limiting plate is fixedly connected to the bottom of the limiting frame, and a limiting block is movably connected to the top of the limiting plate.

[0011] Preferably, a connecting plate is fixedly connected to the bottom of the interlocking plate, and a plurality of sliding grooves are formed on the surface of the interlocking plate.

[0012] Preferably, the mechanical crutch arm is rotatably connected between the connecting plate and the connecting port, and the outer wall of the mechanical crutch arm contacts the bottom of the connecting plate and the top of the connecting port respectively.

[0013] Preferably, one end of the isolation plate close to the interlocking mechanism is fixedly connected with fixing rods having the same number as the sliding grooves, and the surfaces of the fixing rods are slidably connected with the sliding grooves.

[0014] Preferably, a cabinet door is movably connected to the cabinet body, and the interior of the cabinet door is connected to the bottom of the interlocking rod.

[0015] Beneficial Effects

[0016] Compared with the existing technology, the beneficial effects of the utility model are:

[0017] Through the arrangement of the utility model, the closing and opening operating shaft is used to close and open the switch, thereby driving the rotation of the limit device. When the circuit breaker is in the closed state, the protruding part of the limit block abuts against the top surface of the limit plate. When the cabinet door is violently lifted, the limit plate is abutted by the limit block so that the interlocking rod cannot be forced to move up, and the cabinet door cannot be opened, thereby effectively solving the problems raised by the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the coordination structure of the circuit breaker operating mechanism and the interlocking mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the matching part of the interlocking rod and the cabinet door of the utility model.

[0022] 1. Cabinet; 2. Isolation plate; 3. Interlocking mechanism; 4. Circuit breaker operating mechanism; 5. Cabinet door; 6. Limiting device;

[0023] 21. Fixed rod; 31. Interlocking plate; 32. Interlocking rod; 33. Limiting frame; 34. Sliding slot;

[0024] 41. Opening and closing operation shaft; 61. Mechanical crank arm; 62. Limit block; 311. Connecting plate; 331. Limit plate;

[0025] 332. Connection port. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 therefore are not to be construed as limiting the present invention. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

[0028] like Figure 1-3 It is a structural schematic diagram of a cabinet door interlocking mechanism for a switch cabinet in a preferred embodiment of the utility model. In this embodiment, a cabinet door interlocking mechanism for a switch cabinet includes a cabinet body 1 and a cabinet door 5. An interlocking mechanism 3 and a circuit breaker operating mechanism 4 are arranged in the cabinet body. An interlocking rod 32 and an interlocking plate 31 are arranged in the interlocking mechanism 3. A limiting device 6 located at the bottom of the interlocking plate 31 is rotatably installed in the circuit breaker operating mechanism 4. The circuit breaker operating mechanism 4 is transmission-connected with the interlocking rod 32 to drive the interlocking rod 32 to lock or unlock the cabinet door 5. During the unlocking process of the cabinet door 5, the limiting device 6 rotates and blocks the bottom of the interlocking plate 31.

[0029] In this embodiment, the interlocking mechanism 3 also includes a limit frame 33, by fixing the limit frame 33 at the bottom of the interlocking plate 31, and fixing the interlocking rod 32 at the bottom of the limit frame 33, and the circuit breaker operating mechanism 4 is provided with a closing and opening operating shaft 41, one end of the closing and opening operating shaft 41 is fixedly connected to a limit device 6, the limit device 6 passes through the isolation plate 2 and is rotatably connected between the interlocking plate 31 and the limit frame 33, and the closing and opening operation of the closing and opening operating shaft 41 drives the limit device 6 to rotate, and the limit device 6 is located between the interlocking plate 31 and the limit frame 33 so that the limit device 6 can achieve the function of up and down displacement of the interlocking plate 31 and the limit frame 3 during the rotation process.

[0030] In this embodiment, the limiting device 6 includes a mechanical crank arm 61 and a limiting block 62. The mechanical crank arm 61 is sleeved on the surface of the opening and closing operating shaft 41, so that when the opening and closing operating shaft 41 rotates, the mechanical crank arm 61 also rotates synchronously, and the limiting block 62 is fixedly connected to one end face of the opening and closing operating shaft 41. This structural design realizes the resistance effect.

[0031] In this embodiment, a connection port 332 is provided at the top of the limit frame 33, a limit plate 331 is fixedly connected to the bottom of the limit frame 33, and a limit block 62 is movably connected to the top of the limit plate 331. Through the cooperation between the limit plate 331 and the limit block 62, when the opening and closing operating shaft 41 rotates to the closing state, the raised portion of the limit block 62 will rotate with the opening and closing operating shaft 41. At this time, the raised portion of the limit block 62 is in a downward state and conflicts with the limit plate 331, so that the interlocking rod 32 located at the bottom of the limit frame 33 cannot move upward. When the cabinet door 5 is violently pulled up, the limit block 62 conflicts with the limit plate 331, so that the interlocking rod 32 will not move upward, so that the cabinet door 5 realizes the locking function, thereby solving the problem raised in the background technology.

[0032] In this embodiment, a connecting plate 331 is fixedly connected to the bottom of the interlocking plate 31 , and a plurality of sliding grooves 34 are opened on the surface of the interlocking plate 31 .

[0033] In this embodiment, since the mechanical crank arm 61 is rotatably connected between the connecting plate 311 and the connecting port 332, the outer wall of the mechanical crank arm 61 contacts the bottom of the connecting plate 311 and the top of the connecting port 332 respectively, so that the mechanical crank arm 61 is driven to rotate by the rotation of the opening and closing operating shaft 41. When the opening and closing operating shaft 41 rotates downward when the switch is closed, the outer wall of the mechanical crank arm 61 presses the connecting port 332, driving the interlocking plate 31 to move downward, and the interlocking rod 32 locks the cabinet door 5; if the opening and closing operating shaft 41 rotates upward when the switch is opened, the outer wall of the mechanical crank arm 61 contacts the bottom of the connecting plate 311, lifts the connecting plate 311 upward, drives the interlocking plate 31 to move upward, and at the same time the interlocking rod 32 disengages from the cabinet door 5, so that the cabinet door 5 can be opened.

[0034] In this embodiment, a number of fixed rods 21 equal to the number of sliding grooves 34 are fixedly connected to one end of the isolation plate 2 close to the interlocking mechanism 3, and a sliding groove 34 is slidably connected to the surface of the fixed rod 21. This structural design guides the interlocking plate 31 when the mechanical crank arm 61 rotates to drive the interlocking plate 31 to move upward or downward.

[0035] In this embodiment, a cabinet door 5 is movably connected to the cabinet body 1, and the interior of the cabinet door 5 is connected to the bottom of the interlocking rod 32. This structural design enables the cabinet door 5 to be locked while operating the closing and opening of the switch by the opening and closing operating shaft 41 through the cooperation between the interior of the cabinet door 5 and the interlocking rod 32.

[0036] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A cabinet door interlocking mechanism for a switch cabinet, comprising a cabinet body (1) and a cabinet door (5), wherein an interlocking mechanism (3) and a circuit breaker operating mechanism (4) are arranged in the cabinet body, characterized in that: An interlocking rod (32) and an interlocking plate (31) are provided in the interlocking mechanism (3); a limiting device (6) located at the bottom of the interlocking plate (31) is rotatably installed in the circuit breaker operating mechanism (4); the circuit breaker operating mechanism (4) is transmission-connected to the interlocking rod (32) to drive the interlocking rod (32) to lock or unlock the cabinet door (5); and during the unlocking process of the cabinet door (5), the limiting device (6) rotates and blocks at the bottom of the interlocking plate (31).

2. A door interlocking mechanism for a switch cabinet according to claim 1, characterized in that: The interlocking mechanism (3) further comprises a limit frame (33), the bottom of the interlocking plate (31) is fixedly connected to the limit frame (33), the bottom of the limit frame (33) is fixedly connected to an interlocking rod (32), the circuit breaker operating mechanism (4) is provided with an opening and closing operating shaft (41), one end of the opening and closing operating shaft (41) is fixedly connected to a limit device (6), and the limit device (6) passes through the isolation plate (2) and is rotatably connected between the interlocking plate (31) and the limit frame (33).

3. A door interlocking mechanism for a switch cabinet according to claim 1, characterized in that: The limiting device (6) comprises a mechanical crank arm (61) and a limiting block (62); the mechanical crank arm (61) is sleeved on the surface of the opening and closing operating shaft (41); and the limiting block (62) is fixedly connected to an end surface of one end of the opening and closing operating shaft (41).

4. A door interlocking mechanism for a switch cabinet according to claim 2, characterized in that: The top of the limiting frame (33) is provided with a connection opening (332), the bottom of the limiting frame (33) is fixedly connected to the limiting plate (331), and the top of the limiting plate (331) is movably connected to the limiting block (62).

5. The door interlocking mechanism for a switch cabinet according to claim 1, characterized in that: A connecting plate (311) is fixedly connected to the bottom of the interlocking plate (31), and a plurality of sliding grooves (34) are formed on the surface of the interlocking plate (31).

6. A door interlocking mechanism for a switch cabinet according to claim 3, characterized in that: The mechanical crank arm (61) is rotatably connected between the connecting plate (311) and the connecting port (332), and the outer wall of the mechanical crank arm (61) is in contact with the bottom of the connecting plate (311) and the top of the connecting port (332) respectively.

7. A door interlocking mechanism for a switch cabinet according to claim 2, characterized in that: The isolation plate (2) is fixedly connected to one end close to the interlocking mechanism (3) with a number of fixed rods (21) equal to the number of sliding grooves (34), and the surfaces of the fixed rods (21) are slidably connected to the sliding grooves (34).

8. The door interlocking mechanism for a switch cabinet according to claim 1, characterized in that: A cabinet door (5) is movably connected to the cabinet body (1), and the interior of the cabinet door (5) is connected to the bottom of the interlocking rod (32).

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