Mechanical and electrical integrated interlocking terminal power distribution bus plug-in box and interlocking method

Abstract

This invention discloses an electromechanically integrated interlocking terminal distribution busbar plug-in box and its interlocking method. The box is plugged into a busbar system. A connecting plug is located on the back of the terminal distribution busbar plug-in box, and is electrically connected to the copper busbar of the busbar system via the connecting plug. Interlocking locking mechanisms are provided on both sides of the terminal distribution busbar plug-in box, which lock the box onto the busbar system. Each interlocking locking mechanism includes at least two vertically linked locking hooks, which are locked to the housing of the busbar system. This electromechanically integrated interlocking terminal distribution busbar plug-in box combines mechanical locking of the upper and lower locking hooks with electromechanical locking via an electromagnetic lock that detects the circuit breaker voltage, achieving dual locking and simultaneous unlocking, greatly improving the safety of plugging and unplugging the terminal distribution busbar plug-in box.

Description

Technical Field

[0001] This invention relates to the field of plug-in box technology, and in particular to a mechatronic interlocking terminal power distribution bus plug-in box and interlocking method. Background Technology

[0002] The plug-in boxes of the terminal busbar system are plug-and-play and can provide power to IT cabinets, typically 3~10KW. For equipment safety, all power supply equipment must be disconnected (usually by 3 or more circuit breakers) before plugging or unplugging; otherwise, arcing may occur at the contact points, leading to equipment damage or connector damage.

[0003] Existing plug-in box connection locking mechanisms, such as the interlocking devices disclosed in patent numbers CN210053172U or CN206758311U, are all mechanical interlocks, which are prone to worker misoperation, resulting in low safety. At the same time, the mechanical interlock mode needs to be matched with a specific circuit breaker and cannot be universal. Summary of the Invention

[0004] The purpose of this invention is to provide an electromechanical interlocking terminal distribution busbar plug-in box and interlocking method to solve the problems of low safety or imperfect function of mechanical interlocking during the plug-in and plug-out operations of existing plug-in boxes.

[0005] To solve the above technical problems, the present invention provides an electromechanical interlocking terminal power distribution bus plug-in box, which is plugged into the bus system. The back of the terminal power distribution bus plug-in box is provided with a connecting plug, and the connecting plug is electrically connected to the copper bus of the bus system through the connecting plug. An interlocking locking mechanism is provided on both sides of the terminal power distribution bus plug-in box, and the terminal power distribution bus plug-in box is locked and installed on the bus system by the interlocking locking mechanism; The interlocking locking mechanism includes at least two locking hooks that move up and down together, which are locked to the housing of the bus system.

[0006] Preferably, the interlocking locking mechanism includes an upper locking hook and a lower locking hook, which are rotatably connected to the side plate of the end distribution bus plug-in box via rotating shafts.

[0007] Preferably, the upper locking hook and the lower locking hook are respectively equipped with torsion springs, and under the action of the torsion springs, the upper locking hook and the lower locking hook tend to open outward. When the terminal distribution bus plug box is installed on the terminal distribution bus, due to the downward pressing action during installation, the upper locking hook and the lower locking hook will rotate and form a tightened state, and the corresponding locking hook will lock the plug box on the terminal distribution bus.

[0008] Preferably, a linkage locking plate is provided between the upper locking hook and the lower locking hook, and the linkage locking plate is elastically driven by a spring hinge. When the upper locking hook and the lower locking hook are in the open state, the two ends of the linkage locking plate will press on the upper locking hook and the lower locking hook and maintain a certain elastic pressure. When the upper locking hook and the lower locking hook are in the closed state, the two ends of the linkage locking plate fall into the gap left by the rotation of the upper locking hook and the lower locking hook, and abut against the edges of the upper locking hook and the lower locking hook, so that the upper locking hook and the lower locking hook are locked inward and cannot be opened again.

[0009] Preferably, the linkage locking plate is installed on the flip hinge, the fixed page of the flip hinge is connected to the side plate of the terminal power distribution bus plug box, the movable page is connected to the linkage locking plate, and an unlocking groove is provided on the side plate so that the movable page and the linkage locking plate can be flipped inward by hand.

[0010] Preferably, the interlocking locking mechanism is equipped with an electromagnetic lock, and the locking pin of the electromagnetic lock passes vertically through the locking hole opened on the upper locking hook or the lower locking hook, so that the upper locking hook or the lower locking hook can remain locked only when it is in the closed state.

[0011] Preferably, a micro switch is also installed in the interlocking locking mechanism. The micro switch is electrically connected to the electromagnetic lock and is used to sense the position of the interlocking locking plate, thereby controlling the movement of the electromagnetic lock pin.

[0012] Preferably, the micro switch is also electrically connected to the circuit breaker status detection device in the terminal distribution bus plug-in box. The circuit breaker status detection device will only provide the electromagnetic lock action voltage when it detects that all circuit breakers are in the closed state. When the interlocking locking plate is flipped to the unlock position at this time, the micro switch will connect the internal circuit of the electromagnetic lock, causing the locking pin of the electromagnetic lock to retract, thereby unlocking the upper locking hook and the lower locking hook, so that the terminal distribution bus plug-in box can be disconnected from the bus system.

[0013] The present invention also provides an interlocking method for an electromechanical integrated interlocking terminal distribution busbar plug-in box, comprising the following steps: Step (A): When the terminal distribution bus plug box is connected to the bus system, the back of the terminal distribution bus plug box faces the copper bus of the bus system, and the connecting plug is continuously brought closer to the copper bus of the bus system until the connecting plug is plugged into the copper bus of the bus system. Step (B): During the connection process, the upper and lower locking hooks first come into contact with the housing of the bus system. As they approach each other, the upper and lower locking hooks rotate inward to lock until they are parallel to each other. As the hand is released, the movable page of the hinge automatically flips outward, so that the two ends of the linkage locking plate abut against the bottom edge of the upper and lower locking hooks respectively, thus completing the mechanical locking. At the same time, the release of the hand also disconnects the micro switch, at which point the electromagnetic lock pin pops out, locking the upper or lower locking hook that has been locked in place. Step (C): When any circuit breaker is not closed, the circuit breaker status detection device will not provide the electromagnetic lock operating voltage. Regardless of whether the worker intentionally or unintentionally flips the hinge inward, causing the linkage locking plate to disengage from the upper and lower locking hooks, the electromagnetic lock will never receive the operating voltage and the locking pin will never retract. Thus, the upper and lower locking hooks will always be in the locked state, and the terminal distribution bus plug box will never be removed from the bus system. Step (D): When all circuit breakers are closed, the circuit breaker status detection device will provide the electromagnetic lock operating voltage. Manually flip the movable leaf of the hinge inward to disengage the linkage locking plate from the upper and lower locking hooks. At the same time, the movable leaf triggers the micro switch to activate the electromagnetic lock circuit, causing the locking pin of the electromagnetic lock to retract and complete the synchronous unlocking. At this time, the upper and lower locking hooks open outward under the action of the torsion spring and are in the unlocked state, allowing the terminal distribution bus plug box to be removed from the bus system.

[0014] Preferably, even when the busbar system is de-energized, the terminal distribution busbar plug-in box can still be unlocked: using the unlocking hole located at the electromagnetic lock position on the side panel, a tool is used to push the lock pin back, while simultaneously flipping the movable page of the hinge inward, causing the linkage lock plate to disengage from the upper and lower locking hooks. At this time, the upper and lower locking hooks on the same side are in the unlocked state, and one side of the terminal distribution busbar plug-in box is unlocked; the same action is performed to unlock the other side, and the terminal distribution busbar plug-in box can then be removed.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The electromechanical interlocking terminal distribution bus plug-in box combines the mechanical locking of the upper and lower locking hooks by flipping linkage locking plates with the electromechanical locking of the electromagnetic lock to detect the circuit breaker voltage, achieving dual locking and simultaneous unlocking. This greatly improves the safety of plugging and unplugging the terminal distribution bus plug-in box and eliminates the need for structural matching with the circuit breaker. 2. Even when the busbar system is de-energized, the terminal distribution busbar plug-in box of this electromechanical interlocking system can still be unlocked: Using a screwdriver or similar tool, push the locking pin back through the unlocking hole located on the side panel where the electromagnetic lock is positioned. Simultaneously, flip the hinge inwards to disengage the interlocking locking plate from the upper and lower locking hooks. At this point, the upper and lower locking hooks on the same side are unlocked, and one side of the terminal distribution busbar plug-in box is unlocked. Repeat the same action to unlock the other side, and the terminal distribution busbar plug-in box can be removed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the connection between the terminal power distribution bus plug-in box and the bus system provided by the present invention; Figure 2 This is a side view of the connection between the terminal distribution busbar plug-in box and the busbar system provided by the present invention; Figure 3 This is a first-view structural schematic diagram of the terminal power distribution bus plug-in box in the locked state provided by the present invention; Figure 4 This is a second-view structural schematic diagram of the terminal power distribution bus plug-in box in the locked state provided by the present invention; Figure 5 This is a schematic diagram of the internal structure of the terminal power distribution busbar plug-in box provided by the present invention; Figure 6 This is a first-view structural schematic diagram of the interlocking locking mechanism provided by the present invention in the locked state; Figure 7 This is a front view of the interlocking locking mechanism provided by the present invention in the locked state; Figure 8 This is a second-view structural schematic diagram of the interlocking locking mechanism provided by the present invention in the locked state; Figure 9 This is a schematic diagram of the terminal power distribution busbar plug-in box in the unlocked state provided by the present invention; Figure 10 This is a schematic diagram of the interlocking locking mechanism provided by the present invention in the unlocked state.

[0017] In the diagram: 1. Upper locking hook; 2. Lower locking hook; 3. Torsion spring; 4. Linkage locking plate; 5. Flip hinge; 6. Electromagnetic lock; 7. Micro switch; 101. Side plate; 100. Terminal distribution busbar plug-in box; 200. Busbar system; 300. Connecting plug; 400. Interlocking locking mechanism; 500. Circuit breaker. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Example 1 This invention provides an electromechanical interlocking terminal power distribution busbar plug-in box 100. Please refer to [link / reference]. Figure 1 and Figure 2 It is plugged into the bus system 200, specifically, as follows: Figure 3-5 The terminal power distribution bus plug box 100 is provided with a connecting plug 300 on its back, and is electrically connected to the copper busbar of the bus system 200 through the connecting plug 300; both sides of the terminal power distribution bus plug box 100 are provided with interlocking locking mechanisms 400, which lock the terminal power distribution bus plug box 100 onto the bus system 200; the interlocking locking mechanism 400 includes at least two locking hooks that move up and down together, which are locked to the housing of the bus system 200.

[0022] In some embodiments, please refer to Figure 6-8The interlocking locking mechanism 400 includes an upper locking hook 1 and a lower locking hook 2, which are rotatably connected to the side plate 101 of the end power distribution bus plug box 100 via rotating shafts.

[0023] Specifically, torsion springs 3 are respectively installed on the upper locking hook 1 and the lower locking hook 2. Under the action of the torsion springs 3, the upper locking hook 1 and the lower locking hook 2 tend to open outward (i.e., in the unlocked state). When the terminal distribution bus plug box 100 is installed on the terminal distribution bus (i.e., bus system 200), due to the downward pressing action during installation, the upper locking hook 1 and the lower locking hook 2 will rotate and form a tightened state, and the corresponding locking hook will lock the plug box on the terminal distribution bus. Furthermore, a linkage locking plate is provided between the upper locking hook 1 and the lower locking hook 2. 4. The linkage locking plate 4 is driven by a spring hinge. When the upper locking hook 1 and the lower locking hook 2 are open, both ends of the linkage locking plate 4 will press on the upper locking hook 1 and the lower locking hook 2 and maintain a certain elastic pressure. When the upper locking hook 1 and the lower locking hook 2 are closed, both ends of the linkage locking plate 4 fall into the gap left by the rotation of the upper locking hook 1 and the lower locking hook 2, and abut against the edges of the upper locking hook 1 and the lower locking hook 2, so that the upper locking hook 1 and the lower locking hook 2 are locked inward and cannot be opened again.

[0024] Furthermore, the linkage locking piece 4 is installed on the flip hinge 5. The fixed page of the flip hinge 5 is connected to the side plate 101 of the terminal power distribution bus plug box 100, and the movable page is connected to the linkage locking piece 4. An unlocking groove is provided on the side plate 101 so that the movable page and the linkage locking piece 4 can be pushed inward by hand. At the same time, the unlocking groove acts as a handle when the terminal power distribution bus plug box 100 is installed and removed from the bus system 200, making it convenient for workers to install and remove the terminal power distribution bus plug box 100.

[0025] Specifically, an electromagnetic lock 6 is installed on the interlocking locking mechanism 400, or an electromagnetic lock 6 can be installed on both the upper locking hook 1 and the lower locking hook 2; the locking pin of the electromagnetic lock 6 passes vertically through the locking hole opened on the upper locking hook 1 or the lower locking hook 2, so that the upper locking hook 1 or the lower locking hook 2 can only maintain the locked state when it is closed.

[0026] Specifically, a micro switch 7 is also installed inside the interlocking locking mechanism 400. The micro switch 7 is electrically connected to the electromagnetic lock 6 and is used to sense the position of the linkage locking piece 4, thereby controlling the movement of the locking pin of the electromagnetic lock 6. The micro switch 7 is also electrically connected to the circuit breaker status detection device (which is existing technology and will not be described in detail in this invention) inside the terminal distribution bus plug-in box 100. The circuit breaker status detection device will only provide the electromagnetic lock 6 with the operating voltage when it detects that all circuit breakers 500 are in the closed state. When it senses that the linkage locking piece 4 has flipped to the unlocked position, the micro switch 7 will connect the internal circuit of the electromagnetic lock 6, causing the locking pin of the electromagnetic lock 6 to retract, thereby unlocking the upper locking hook 1 and the lower locking hook 2, so that the terminal distribution bus plug-in box 100 can be disconnected from the bus system 200. The electromechanical interlocking terminal distribution busbar plug-in box combines mechanical locking of the upper and lower locking hooks with electromechanical locking of the circuit breaker voltage detection by the flipping linkage locking plate, achieving dual locking and simultaneous unlocking, which greatly improves the safety of plugging and unplugging the terminal distribution busbar plug-in box.

[0027] Example 2 This invention also provides an interlocking method for an electromechanical integrated interlocking terminal distribution busbar plug-in box; please refer to the following: Figure 9 and Figure 10 It includes the following steps: Step (A): When the terminal distribution bus plug box 100 is connected to the bus system 200, the back of the terminal distribution bus plug box 100 faces the copper busbar of the bus system 200, and the connecting plug 300 is continuously brought closer to the copper busbar of the bus system 200 until the connecting plug 300 is plugged into the copper busbar of the bus system 200. Step (B): During the connection process, the upper locking hook 1 and the lower locking hook 2 first come into contact with the housing of the bus system 200. As they approach each other, the upper locking hook 1 and the lower locking hook 2 rotate inward and lock until they are parallel to each other (i.e., locked). As the hand is released, the movable page of the hinge 5 automatically flips outward, so that the two ends of the linkage locking piece 4 abut against the bottom edge of the upper locking hook 1 and the lower locking hook 2 respectively, completing the mechanical locking. At the same time, the release of the hand also disconnects the micro switch. At this time, the locking pin of the electromagnetic lock 6 pops out and locks the upper locking hook 1 or the lower locking hook 2 that has been locked in place. Step (C): When any one of the circuit breakers 500 is not closed, the circuit breaker status detection device will not provide the electromagnetic lock operating voltage. Regardless of whether the worker intentionally or unintentionally flips the movable page of the hinge 5 inward, causing the linkage locking plate 4 to disengage from the upper locking hook 1 and the lower locking hook 2, the electromagnetic lock 6 will never receive the working voltage, and the locking pin will never retract. Thus, the upper locking hook 1 and the lower locking hook 2 will always be in the locked state, and the terminal distribution bus plug box 100 will never be removed from the bus system 200. Step (D): When the circuit breaker 500 is fully closed, the circuit breaker status detection device will provide the electromagnetic lock operating voltage. The manual flipping of the movable page of the hinge 5 causes the linkage locking plate 4 to disengage from the upper locking hook 1 and the lower locking hook 2. At the same time, the movable page triggers the micro switch 7 to activate the circuit of the electromagnetic lock 6, causing the locking pin of the electromagnetic lock 6 to retract and complete the synchronous unlocking. At this time, the upper locking hook 1 and the lower locking hook 2 open outward under the action of the torsion spring 3 and are in the unlocked state, so that the terminal distribution bus plug box 100 can be removed from the bus system 200. The function of the micro switch 7 is to sense manual operation and avoid the electromagnetic lock 6 from being easily damaged and consuming power due to prolonged power supply.

[0028] When the bus system 200 is de-energized, the terminal distribution bus plug-in box 100 can still be unlocked even when it is de-energized: by using the unlocking hole located at the electromagnetic lock 6 on the side plate 101, the locking pin is pushed back using a screwdriver or other tools, and the movable page of the hinge 5 is flipped inward, so that the linkage locking plate 4 is disengaged from the contact of the upper locking hook 1 and the lower locking hook 2. At this time, the upper locking hook 1 and the lower locking hook 2 on the same side are in the unlocked state, and one side of the terminal distribution bus plug-in box 100 is unlocked; the same action is performed to unlock the other side, and the terminal distribution bus plug-in box 100 can be removed. Even when the bus system is de-energized, the terminal distribution bus plug-in box of this electromechanical interlocking system can still be unlocked: Using a screwdriver or similar tool, push the locking pin back through the unlocking hole located on the side panel where the electromagnetic lock is positioned. Simultaneously, flip the hinge inwards to disengage the interlocking locking plate from the upper and lower locking hooks. At this point, the upper and lower locking hooks on the same side are unlocked, and one side of the terminal distribution bus plug-in box is unlocked. Repeat the same action to unlock the other side, and the terminal distribution bus plug-in box can be removed.

[0029] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A mechatronic interlocking terminal distribution busbar plug-in box (100), plugged into a busbar system (200), characterized in that, The back of the terminal power distribution bus plug box (100) is provided with a connecting plug (300), and is electrically connected to the copper busbar of the bus system (200) through the connecting plug (300); An interlocking locking mechanism (400) is provided on both sides of the terminal power distribution bus plug box (100), and the terminal power distribution bus plug box (100) is locked and installed on the bus system (200) by the interlocking locking mechanism (400); The interlocking locking mechanism (400) includes an upper locking hook (1) and a lower locking hook (2). The upper locking hook (1) and the lower locking hook (2) are rotatably connected to the side plate (101) of the terminal distribution bus plug-in box (100) via a rotating shaft. A torsion spring (3) is installed on the upper locking hook (1) and the lower locking hook (2). Under the action of the torsion spring (3), the upper locking hook (1) and the lower locking hook (2) tend to open outward. When the terminal distribution bus plug-in box (100) is installed on the terminal distribution bus, due to the downward pressing action during installation, the upper locking hook (1) and the lower locking hook (2) will rotate and form a tightened state, and the corresponding locking hook will lock the plug-in box on the terminal distribution bus. A linkage locking piece (4) is provided between the upper locking hook (1) and the lower locking hook (2), and the linkage locking piece (4) is driven by a spring hinge. When the upper locking hook (1) and the lower locking hook (2) are in an open state, the two ends of the linkage locking piece (4) will press on the upper locking hook (1) and the lower locking hook (2) and maintain a certain elastic pressure. When the upper locking hook (1) and the lower locking hook (2) are in a closed state, the two ends of the linkage locking piece (4) fall into the gap left by the rotation of the upper locking hook (1) and the lower locking hook (2) respectively, and abut against the edges of the upper locking hook (1) and the lower locking hook (2), so that the upper locking hook (1) and the lower locking hook (2) are locked inward and cannot be opened again.

2. The electromechanical interlocking terminal power distribution busbar plug-in box (100) as described in claim 1, characterized in that, The linkage locking plate (4) is installed on the flip hinge (5). The fixed page of the flip hinge (5) is connected to the side plate (101) of the terminal power distribution bus plug box (100), and the movable page is connected to the linkage locking plate (4). An unlocking groove is provided on the side plate (101) so that the movable page and the linkage locking plate (4) can be flipped inward by hand.

3. The electromechanical interlocking terminal power distribution busbar plug-in box (100) as described in claim 2, characterized in that, An electromagnetic lock (6) is installed on the interlocking locking mechanism (400). The locking pin of the electromagnetic lock (6) passes vertically through the locking hole opened on the upper locking hook (1) or the lower locking hook (2), so that the upper locking hook (1) or the lower locking hook (2) can be locked only when it is closed.

4. The electromechanical interlocking terminal power distribution busbar plug-in box (100) as described in claim 3, characterized in that, The interlocking locking mechanism (400) is also equipped with a micro switch (7), which is electrically connected to the electromagnetic lock (6) and is used to sense the position of the interlocking locking piece (4) to control the movement of the locking pin of the electromagnetic lock (6).

5. The electromechanical interlocking terminal power distribution busbar plug-in box (100) as described in claim 4, characterized in that, The micro switch (7) is also electrically connected to the circuit breaker status detection device in the terminal distribution bus plug box (100). The circuit breaker status detection device will provide the electromagnetic lock (6) operating voltage when it detects that all circuit breakers (500) are in the closed state. When the linkage lock plate (4) is sensed to flip to the unlock position, the micro switch (7) will connect the internal circuit of the electromagnetic lock (6), so that the locking pin of the electromagnetic lock (6) retracts, thereby unlocking the upper locking hook (1) and the lower locking hook (2), so that the terminal distribution bus plug box (100) can be disconnected from the bus system (200).

6. An interlocking method for a terminal distribution busbar plug-in box with electromechanical integrated interlocking as described in claim 5, characterized in that, Includes the following steps: Step (A): When the terminal distribution bus plug box (100) is connected to the bus system (200), the back of the terminal distribution bus plug box (100) is facing the copper busbar of the bus system (200), and the connecting plug (300) is continuously brought closer to the copper busbar of the bus system (200) until the connecting plug (300) is plugged into the copper busbar of the bus system (200); Step (B): During the connection process, the upper locking hook (1) and the lower locking hook (2) first come into contact with the housing of the bus system (200), and as they approach each other, the upper locking hook (1) and the lower locking hook (2) rotate inward to lock until the upper locking hook (1) and the lower locking hook (2) are parallel to each other. As the hand is released, the movable page of the hinge (5) automatically flips outward, so that the two ends of the linkage locking piece (4) abut against the bottom edge of the upper locking hook (1) and the lower locking hook (2) respectively, completing the mechanical locking; at the same time, the release of the hand also causes the micro switch to disconnect. At this time, the locking pin of the electromagnetic lock (6) pops out and locks the upper locking hook (1) or the lower locking hook (2) that has been locked in place. Step (C): When any circuit breaker (500) is not closed, the circuit breaker status detection device will not provide the electromagnetic lock operating voltage. Regardless of whether the worker intentionally or unintentionally operates the inward flipping hinge (5) to make the linkage locking plate (4) disengage from the upper locking hook (1) and the lower locking hook (2), the electromagnetic lock (6) will never be able to obtain the working voltage and the locking pin will never be able to retract. Thus, the upper locking hook (1) and the lower locking hook (2) will always be in the locked state, and the terminal distribution bus plug box (100) will never be able to be removed from the bus system (200). Step (D): When all circuit breakers (500) are closed, the circuit breaker status detection device will provide the electromagnetic lock operating voltage. Manually flip the movable page of the flip hinge (5) inward, so that the linkage locking plate (4) is disengaged from the upper locking hook (1) and the lower locking hook (2). At the same time, the movable page triggers the micro switch (7) to activate the circuit of the electromagnetic lock (6), so that the locking pin of the electromagnetic lock (6) retracts and completes the synchronous unlocking. At this time, the upper locking hook (1) and the lower locking hook (2) open outward under the action of the torsion spring (3) and are in the unlocked state, so that the terminal distribution bus plug box (100) can be removed from the bus system (200).

7. The interlocking method for an electromechanical integrated interlocking terminal distribution busbar plug-in box as described in claim 6, characterized in that, When the bus system (200) is de-energized, the terminal distribution bus plug box (100) can still be unlocked even when it is de-energized: by using the unlocking hole located at the position of the electromagnetic lock (6) on the side plate (101), the locking pin is pushed back with a tool, and the movable page of the hinge (5) is flipped inward, so that the linkage locking plate (4) is disengaged from the contact with the upper locking hook (1) and the lower locking hook (2). At this time, the upper locking hook (1) and the lower locking hook (2) on the same side are in the unlocked state, and one side of the terminal distribution bus plug box (100) is unlocked; the same action is used to unlock the other side, and the terminal distribution bus plug box (100) can be removed.

Images