CN210837540U - Isolation hard interlocking device under circuit breaker - Google Patents

Abstract

The utility model relates to the technical field of electrical cabinet locks, in particular to an isolation hard interlocking device under a circuit breaker. It includes a main knife, a ground knife, a main knife locking plate, a ground knife locking plate, a mounting plate and a door control mechanism; the main knife and the ground knife are both fixed on the mounting plate; the main knife locking plate slides with the mounting plate connected to the end of the main knife; the ground knife lock plate is slidably connected with the mounting plate and clamped on the end of the ground knife; the main knife lock plate is fixedly connected with the ground knife lock plate, and is In order to realize the synchronous sliding of the two on the installation plate; the door control mechanism is arranged at the bottom of the ground knife lock plate, connected with the cabinet door to be controlled, and used to control the ground knife according to the opening and closing of the cabinet door. Lock plate movement. The purpose of the utility model is to provide a circuit breaker lower isolation hard interlocking device against the defects in the prior art, which is less affected by the external temperature, makes the interlocking more stable and reliable, and achieves the same life as the cabinet.

Description

A hard interlocking device for isolation under a circuit breaker

technical field

The utility model relates to the technical field of electrical cabinet locks, in particular to an isolation hard interlocking device under a circuit breaker.

Background technique

Electrical cabinets, or electrical equipment installed in power distribution cabinets, need to be installed with locking devices on the electrical cabinet doors to protect the electrical equipment inside. The structure of the traditional locking device is similar to that of a bolt or a door latch, and such locking devices are lacking in safety and reliability.

In the prior art, soft interlocks are often used in electrical cabinet door locking devices, that is, nylon ropes or wire ropes are used to connect the lock rods to realize the interlocking of the lower door. fail.

In view of the above problems, the designer based on many years of rich practical experience and professional knowledge in the engineering application of such products, and with the application of academic theory, actively researches and innovates, in order to design the isolation hard interlocking device under the circuit breaker, which is less affected by the external temperature , making the interlock more stable and reliable, and achieve the same life as the cabinet.

Utility model content

The purpose of the utility model is to provide a circuit breaker lower isolation hard interlocking device against the defects in the prior art, which is less affected by the external temperature, makes the interlocking more stable and reliable, and achieves the same life as the cabinet.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is:

It includes a main knife, a ground knife, a main knife lock plate, a ground knife lock plate, a mounting plate and a door control mechanism; the main knife and the ground knife are both fixed on the mounting plate for operating opening and closing; the main knife lock The plate is slidably connected with the mounting plate, and is blocked on the end of the main knife, and is used for regulating the opening and locking of the main knife by sliding on the mounting plate; the ground knife locking plate and the mounting plate The sliding connection is stuck on the end of the ground knife, and is used to adjust the opening and locking of the ground knife by sliding on the mounting plate; the main knife lock plate is fixedly connected with the ground knife lock plate, and is used for In order to realize the synchronous sliding of the two on the installation plate; the door control mechanism is arranged at the bottom of the ground knife lock plate, connected with the cabinet door to be controlled, and used to control the ground knife according to the opening and closing of the cabinet door. Lock plate movement.

Further, the main knife lock plate is provided with a blocking piece; the blocking piece is used to block the handle of the main knife when the cabinet door is opened, so as to prevent the main knife from engaging with the outside.

Further, a bayonet is provided at the place where the ground knife lock plate and the ground knife are matched; the bayonet is used for locking with the handle of the ground knife when the cabinet door is opened to lock the ground knife.

Further, an installation hole is provided at the connection between the main knife lock plate and the ground knife lock plate; the installation hole is used for screwing bolts to strengthen the fixation between the main knife lock plate and the ground knife lock plate.

Further, the side of the ground knife lock plate is provided with a handle; the handle is used to facilitate the manual push and pull of the ground knife lock plate.

Further, the bottom of the ground knife lock plate is provided with a door lock shaft; when the cabinet door is closed, the door lock shaft is inserted into the top of the cabinet door to lock the cabinet door.

Further, the door control mechanism includes an elastic mechanism, a sliding sheet and a pressing plate; the sliding sheet is vertically connected with the pressing plate; the sliding sheet is pressed against the cabinet door to limit the The pressing plate moves; the elastic mechanism is connected with the end of the pressing plate, and is used to eject the pressing plate when the cabinet door is opened; the pressing plate is used for pressing the door lock shaft when the cabinet door is opened .

Through the technical scheme of the present utility model, the following technical effects can be achieved:

The main knife and the ground knife are controlled by installing the main knife lock plate and the ground knife lock plate on the installation plate, and then the door control mechanism is linked with the cabinet door to realize the hard interlocking, which is less affected by the external temperature, making the interlocking more stable and reliable. To achieve the same life as the cabinet.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments described in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the structural schematic diagram of the isolation hard interlocking device under the circuit breaker in the embodiment of the utility model;

Fig. 2 is the main knife lock plate and the ground knife lock plate of the lower isolation hard interlock device of the circuit breaker according to the embodiment of the utility model.

FIG. 3 is a side structural view of the lower isolation hard interlocking device of the circuit breaker in the embodiment of the present utility model;

Reference numerals: main knife 1, ground knife 2, main knife lock plate 3, ground knife lock plate 4, installation plate 5, door control mechanism 6, baffle 31, bayonet 41, installation hole 42, door lock shaft 43, handle 44 , elastic mechanism 61 , sliding piece 62 and pressing plate 63 .

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

In the description of the present utility model, it should be noted that "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, with a specific orientation. The orientation configuration and operation are therefore not to be construed as limitations of the present invention.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection. Connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication 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 in specific situations.

An isolation hard interlocking device under a circuit breaker, as shown in Figure 1, includes a main knife 1, a ground knife 2, a main knife lock plate 3, a ground knife lock plate 4, a mounting plate 5 and a door control mechanism 6; the main knife 1 and all The ground knives 2 are all fixed on the mounting plate 5 for operating opening and closing; the main knife lock plate 3 is slidably connected with the mounting plate 5, and is blocked on the end of the main knife 1, used for The mounting plate 5 is slid on to regulate the opening and locking of the main knife 1; The mounting plate 5 is slid on to regulate the opening and locking of the ground knife 2; the main knife lock plate 3 is fixedly connected with the ground knife lock plate 4, so as to realize the simultaneous sliding of the two on the mounting plate 5 ; The door control mechanism 6 is arranged at the bottom of the ground knife lock plate 4 and is connected with the cabinet door to be controlled, and is used to control the movement of the ground knife lock plate 4 according to the opening and closing of the cabinet door.

As a preferred embodiment of the above-mentioned embodiment, as shown in Figures 1 and 2, the main knife lock plate 3 is provided with a blocking piece 31; the blocking piece 31 is used to block the handle of the main knife 1 when the cabinet door is opened, preventing The main knife 1 cooperates with the outside.

As a preference of the above embodiment, as shown in FIGS. 1 and 2 , a bayonet 41 is provided at the place where the ground knife lock plate 4 cooperates with the ground knife 2 ; the bayonet 41 is used to connect with The handle of the ground knife 2 is clamped to lock the ground knife 2 .

As a preferred embodiment of the above-mentioned embodiment, as shown in FIGS. 1 and 2 , installation holes 42 are provided at the connection between the main knife lock plate 3 and the ground knife lock plate 4 ; the installation holes 42 are used for screwing bolts to strengthen the The main knife lock plate 3 and the ground knife lock plate 4 are fixed.

As a preferred embodiment of the above embodiment, as shown in FIGS. 1 and 2 , the side of the ground knife lock plate 4 is provided with a handle 44 ; the handle 44 is used to facilitate the manual push and pull of the ground knife lock plate 4 .

As a preferred embodiment of the above embodiment, as shown in Figures 1 and 2, a door lock shaft 43 is provided at the bottom of the ground knife lock plate 4; when the cabinet door is closed, the door lock shaft 43 is inserted into the top of the cabinet door for locking Live closet door.

As a preferred example of the above embodiment, as shown in FIGS. 1 and 3 , the door control mechanism 6 includes an elastic mechanism 61, a sliding sheet 62 and a pressing plate 63; the sliding sheet 62 is vertically connected with the pressing plate 63; the The sliding piece 62 abuts against the cabinet door, and is used to restrict the movement of the pressing plate 63 when the cabinet door is closed; the elastic mechanism 61 is connected to the end of the pressing plate 63 and is used to prevent the pressing plate 63 from moving when the cabinet door is opened. The pressing plate 63 pops up; the pressing plate 63 is used to abut the door lock shaft 43 when the cabinet door is opened.

Specifically, when the cabinet door is closed, the ground knife lock plate 4 slides downward under the influence of gravity, so that the door lock shaft 43 is inserted into the top of the cabinet door to ensure that the cabinet door is closed. Because the ground knife lock plate 4 is connected with the main knife lock plate 3, the main knife lock plate 3 is also driven to slide down, so that the main knife 1 and the ground knife 2 are released from restrictions, and the opening and closing can be adjusted.

Specifically, when the cabinet door is opened, the ground knife lock plate 4 needs to be pulled up first, so that the door lock shaft 43 inserted into the top of the cabinet door is pulled out, the restriction of the cabinet door is released, and the cabinet door can be opened. At the same time, the door control mechanism 6 is no longer pressed against the sliding piece 62 due to the opening of the cabinet door, so that the elastic mechanism 61 connected behind the sliding piece 62 ejects the sliding piece 62, and drives the pressing plate 63 against the door lock shaft 43, forcing the ground knife The lock plate 4 and the main knife lock plate 3 keep moving upward, so that the blocking piece 31 and the bayonet 41 lock the main knife 1 and the ground knife 2 respectively, and the opening and closing operation cannot be performed to ensure safety.

The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention There will also be various changes and improvements in the new model, which all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A lower isolation hard interlocking device of a circuit breaker is characterized by comprising a main knife (1), a ground knife (2), a main knife locking plate (3), a ground knife locking plate (4), a mounting plate (5) and a door control mechanism (6); the main knife (1) and the ground knife (2) are both fixed on the mounting plate (5) and used for operating opening and closing; the main knife lock plate (3) is connected with the mounting plate (5) in a sliding manner, is blocked on the end part of the main knife (1), and is used for regulating and controlling the opening and locking of the main knife (1) by sliding on the mounting plate (5); the ground knife locking plate (4) is connected with the mounting plate (5) in a sliding manner, is clamped at the end part of the ground knife (2), and is used for regulating and controlling the opening and locking of the ground knife (2) by sliding on the mounting plate (5); the main knife lock plate (3) is fixedly connected with the ground knife lock plate (4) and is used for realizing synchronous sliding of the main knife lock plate and the ground knife lock plate on the mounting plate (5); the door control mechanism (6) is arranged at the bottom of the floor knife lock plate (4), is connected with a cabinet door to be controlled, and is used for controlling the floor knife lock plate (4) to move according to the opening and closing of the cabinet door.

2. The lower isolation hard interlocking device of the circuit breaker according to claim 1, wherein a blocking piece (31) is arranged on the main knife lock plate (3); the blocking piece (31) is used for blocking the handle of the main knife (1) when the cabinet door is opened, and the main knife (1) is prevented from being matched with the outside.

3. The lower isolation hard interlocking device of the circuit breaker according to claim 1, wherein a bayonet (41) is arranged at the position where the ground knife lock plate (4) is matched with the ground knife (2); the bayonet (41) is used for clamping the handle of the ground knife (2) when the cabinet door is opened, and locking the ground knife (2).

4. The hard interlocking device for lower isolation of circuit breaker according to claim 1, wherein the connection between the main knife lock plate (3) and the ground knife lock plate (4) is provided with a mounting hole (42); the mounting holes (42) are used for screwing bolts to strengthen the fixation between the main knife lock plate (3) and the ground knife lock plate (4).

5. The lower isolation hard interlocking device of the circuit breaker according to claim 1, characterized in that a handle (44) is arranged at the side of the ground knife lock plate (4); the handle (44) is used for facilitating manual push-pull of the ground knife lock plate (4).

6. The lower isolation hard interlocking device of the circuit breaker according to claim 1, characterized in that a door lock shaft (43) is arranged at the bottom of the ground knife lock plate (4); when the cabinet door is closed, the door lock shaft (43) is inserted into the top of the cabinet door for locking the cabinet door.

7. The lower isolation hard interlock device of claim 6, wherein the door control mechanism (6) comprises a resilient mechanism (61), a sliding piece (62) and a pressing plate (63); the sliding sheet (62) is vertically connected with the pressure-resisting plate (63); the sliding sheet (62) is abutted against the cabinet door and used for limiting the movement of the abutting plate (63) when the cabinet door is closed; the elastic mechanism (61) is connected with the end part of the pressing plate (63) and is used for ejecting the pressing plate (63) when the cabinet door is opened; the pressing plate (63) is used for pressing against the door lock shaft (43) when the cabinet door is opened.

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