Outdoor ring network cabinet to prevent misoperation

Abstract

The invention discloses an outdoor ring network cabinet for preventing misoperation, comprising a cabinet, an operation panel and a high-voltage cable are arranged in the cabinet, a grounding knife switch is hingedly connected to the operation panel and a gate seat is fixedly arranged, the grounding knife switch is rotated to be engaged with the gate seat to realize closing, a locking assembly is arranged on the operation panel, the locking assembly comprises a locking seat, a high-voltage live detector and an unlocking member, a control panel and an electric control lock tongue are arranged in the locking seat, a locking notch and a display screen are arranged at intervals on the locking seat, the electric control lock tongue and the display screen are both connected to the control panel, a lock hole is provided on the grounding knife switch, when the grounding knife switch is rotated into the locking notch, the electric control lock tongue can extend into the locking notch and be plugged into the lock hole, the high-voltage live detector is arranged on the high-voltage cable and is electrically connected to the control panel, and the unlocking member is communicatively connected to the control panel. The outdoor ring network cabinet for preventing misoperation of the invention has a simple structure and high safety.

Description

Technical Field

[0001] The invention relates to the technical field of power grid equipment, and in particular to an outdoor ring network cabinet capable of preventing misoperation. Background Art

[0002] A ring main unit is an electrical device in which a group of high-voltage switchgear is installed in a metal steel plate cabinet or made into an assembled interval ring main unit. The load switch and the grounding switch (also known as the grounding knife switch) are the main components of the ring main unit and are widely used in the ring main unit. The load switch is installed in the main circuit to disconnect the rated current and close the short-circuit current. The grounding knife switch is used for reliable grounding of the main circuit. The misoperation of the load switch and the grounding knife switch is very harmful and can easily cause a short-circuit fault in the power supply line, destroy the stability of the power supply system, and endanger the personal safety of maintenance personnel.

[0003] Before closing the grounding switch, it is necessary to determine whether the high-voltage cable outlet (incoming line) is energized. Only when it is determined that the cable is not energized, the grounding switch is allowed to be closed. The existing technology is to lock the operating hole of the grounding switch with a padlock. When operating the grounding switch, the operator manually determines whether the cable is energized. When the cable is not energized, the grounding switch is unlocked and finally closed. The existing technology has the following defects: manual judgment of whether the cable is energized may be wrong, which poses a great safety hazard. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide an outdoor ring network cabinet that can prevent misoperation and has a simple structure and high safety.

[0005] To achieve this purpose, the embodiment of the present invention adopts the following technical solutions:

[0006] Provided is an outdoor ring network cabinet for preventing misoperation, comprising a cabinet body, an operation panel and a high-voltage cable are arranged in the cabinet body, an earthing knife switch is hingedly connected to the operation panel and a gate seat is fixedly arranged, the earthing knife switch is rotated to be engaged with the gate seat to realize closing, a locking component is arranged on the operation panel, and the locking component comprises:

[0007] A locking seat, wherein a control panel and an electric-controlled lock tongue are arranged in the locking seat, a locking notch and a display screen are arranged at intervals on the locking seat, the electric-controlled lock tongue and the display screen are both connected to the control panel, a lock hole is opened on the grounding knife switch, and when the grounding knife switch is rotated into the locking notch, the electric-controlled lock tongue can extend into the locking notch and be plugged into the lock hole;

[0008] A high-voltage live detector, which is arranged on the high-voltage cable and is used to detect whether the high-voltage cable is live, and the high-voltage live detector is electrically connected to the control board;

[0009] An unlocking member, the unlocking member being communicatively connected with the control panel;

[0010] When the high-voltage cable is energized, the control panel will control the electric-controlled lock tongue to continuously lock the grounding switch, the unlocking piece cannot unlock the electric-controlled lock tongue, and a energized prompt is displayed on the display screen; when the high-voltage cable is not energized, the unlocking piece can unlock the electric-controlled lock tongue.

[0011] As a preferred solution for an outdoor ring network cabinet that prevents misoperation, the locking seat includes an upper shell and a lower shell detachably connected to the upper shell, the lower shell is connected to the operation panel, and an installation cavity for the control panel and the electric control lock tongue is defined between the upper shell and the lower shell. The display screen is fixed on the upper shell, and the locking notch is arranged on the upper shell. The side wall of the locking notch is provided with a first through hole for the electric control lock tongue to pass through, and the first through hole is connected to the installation cavity.

[0012] As a preferred solution for an outdoor ring network cabinet that prevents misoperation, the electric control lock tongue includes a linear motor and a lock tongue body. The linear motor is transmission-connected to the lock tongue body and can drive the lock tongue body to move linearly. A guide groove is provided on the inner side wall of the upper shell, and the lock tongue body is slidably arranged in the guide groove. The linear motor is electrically connected to the control board.

[0013] As a preferred solution for preventing misoperation of an outdoor ring network cabinet, the upper shell includes a top plate and a first surrounding wall surrounding the top plate, and an end of the first surrounding wall away from the top plate extends toward the outside of the first surrounding wall to form a first connecting plate;

[0014] The lower shell comprises a bottom plate and a second surrounding wall surrounding the bottom plate, wherein one end of the second surrounding wall away from the bottom plate extends toward the outer side of the second surrounding wall to form a second connecting plate;

[0015] The first connecting plate and the second connecting plate are connected by screws, and the nuts of the screws are located on a side of the second connecting plate away from the first connecting plate.

[0016] As a preferred solution for preventing misoperation of an outdoor ring network cabinet, at least one protrusion is protruding from the operation panel, a through hole is provided on the protrusion, a second through hole is provided on the lower shell corresponding to the protrusion, the protrusion passes through the second through hole and is inserted into the installation cavity, a locking pin is provided in the lower shell and on one side of the second through hole, the locking pin is connected to an elastic member, the elastic member drives the locking pin to move toward the side where the second through hole is located, and the locking pin is inserted into the through hole.

[0017] As a preferred solution for preventing misoperation of an outdoor ring network cabinet, one side of the upper shell is connected to the lower shell by a hinge, and the other side is connected to the lower shell by a password lock or an electronic lock.

[0018] As a preferred solution for preventing misoperation of an outdoor ring network cabinet, a circle of warning lights is provided around the display screen, and the warning lights are connected to the control panel. When the high-voltage cable is energized, the warning lights are energized and illuminated.

[0019] As a preferred solution for preventing misoperation of an outdoor ring network cabinet, the display screen is a touch screen, and an identity recognition area is provided on the touch screen.

[0020] As a preferred solution for preventing misoperation of an outdoor ring network cabinet, an identity identifier is spaced apart on one side of the display screen, and the identity identifier is electrically connected to the control panel.

[0021] As a preferred solution for preventing misoperation of an outdoor ring network cabinet, a groove is provided on the operation panel, the locking seat is installed in the groove, the locking seat has a working position and a non-working position, the bottom of the groove has a driving member for driving the locking seat to move up and down, the driving member is connected to the control panel, and a button for controlling the lifting and lowering movement of the locking seat is provided on the operation panel. When it is necessary to lock the grounding switch, the driving member drives the locking seat to extend out of the groove, and the locking seat is located in the working position at this time. When it is not necessary to lock the grounding switch, the driving member drives the locking seat to retract into the groove, and the locking seat is located in the non-working position at this time.

[0022] The beneficial effects of the embodiments of the present invention are as follows: by setting the above-mentioned locking component, it is possible to automatically detect whether the high-voltage cable is energized. Only when the high-voltage cable is not energized can the operator release the lock of the locking seat on the grounding switch through the unlocking piece, and only then can the grounding switch be rotated to the gate seat to close the switch, effectively avoiding the operator from misjudging the energization status of the high-voltage cable and closing the grounding switch. The safety is high. When the high-voltage cable is energized, the operator cannot release the lock of the locking seat on the grounding switch no matter how he operates the unlocking piece; by setting a display screen, the current energized status of the high-voltage cable can be intuitively displayed, reminding the operator to operate safely and in accordance with regulations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0024] Figure 1 It is a partial front view of the outdoor ring network cabinet for preventing misoperation according to an embodiment of the present invention.

[0025] Figure 2 It is a partial side view of an outdoor ring network cabinet for preventing misoperation according to an embodiment of the present invention.

[0026] Figure 3 for Figure 1 AA cross-sectional view of .

[0027] In the figure:

[0028] 1. operation panel; 11. protrusion; 111. through hole;

[0029] 2. Grounding switch; 21. Lock hole;

[0030] 3. Gate seat;

[0031] 4. Locking components;

[0032] 41. Locking seat; 411. Upper shell; 4111. First through hole; 4112. Guide groove; 4113. Top plate; 4114. First surrounding wall; 4115. First connecting plate; 412. Lower shell; 4121. Bottom plate; 4122. Second surrounding wall; 4123. Second connecting plate; 413. Mounting cavity; 414. Lock pin; 415. Elastic member; 42. Control board; 43. Electric lock tongue; 431. Linear motor; 432. Lock tongue body; 44. Locking notch; 45. Display screen; 46. Identity identifier. DETAILED DESCRIPTION

[0033] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 3As shown, an embodiment of the present invention provides an outdoor ring network cabinet for preventing misoperation, including a cabinet body, an operation panel 1 and a high-voltage cable (not shown in the figure) are arranged in the cabinet body, an earthing knife switch 2 is hingedly connected to the operation panel 1 and a gate seat 3 is fixedly arranged, the earthing knife switch 2 is rotated to be engaged with the gate seat 3 to achieve closing, a locking component 4 is arranged on the operation panel 1, and the locking component 4 includes a locking seat 41, a high-voltage live detector (not shown in the figure) and an unlocking member (not shown in the figure), wherein a control panel 42 and an electric control lock tongue 43 are arranged in the locking seat 41, and the locking seat 4 1 is provided with a locking notch 44 and a display screen 45 at intervals, the electric control lock tongue 43 and the display screen 45 are both connected to the control board 42, the grounding knife switch 2 is provided with a lock hole 21, when the grounding knife switch 2 is rotated into the locking notch 44, the electric control lock tongue 43 can extend into the locking notch 44 and plug into the lock hole 21, the high-voltage live detector is provided on the high-voltage cable, and is used to detect whether the high-voltage cable is charged, the high-voltage live detector is electrically connected to the control board 42, and the unlocking member is communicatively connected to the control board 42.

[0035] When the high-voltage cable is energized, the control panel 42 will control the electric-controlled lock tongue 43 to continuously lock the grounding switch 2, the unlocking piece cannot unlock the electric-controlled lock tongue 43, and a energized prompt is displayed on the display screen 45; when the high-voltage cable is not energized, the unlocking piece can unlock the electric-controlled lock tongue 43.

[0036] By setting the above-mentioned locking component 4, it is possible to automatically detect whether the high-voltage cable is energized. Only when the high-voltage cable is not energized can the operator release the lock of the locking seat 41 on the grounding switch 2 through the unlocking piece. Only then can the grounding switch 2 be rotated to the switch seat 3 to close the switch, which effectively avoids the operator from misjudging the energization status of the high-voltage cable and closing the grounding switch 2. It has high safety. When the high-voltage cable is energized, the operator cannot release the lock of the locking seat 41 on the grounding switch 2 no matter how he operates the unlocking piece; by setting the display screen 45, the current energization status of the high-voltage cable can be intuitively displayed, reminding the operator to operate safely and in accordance with regulations.

[0037] In this embodiment, an identity identifier 46 is provided at one side of the display screen 45, and the identity identifier 46 is electrically connected to the control panel 42. By providing the identity identifier 46, the identity of the operator who performs the closing operation can be identified. The operator applies for repair and maintenance of the designated outdoor ring network cabinet in advance in the power grid system. The power grid system will enter the identity information of the operator and send it to the control panel 42. After the control panel 42 receives the information, when the operator comes to the outdoor ring network cabinet for operation, the identity is first identified by the identity identifier 46. After it is confirmed, the control panel 42 controls the electric control lock tongue 43 to unlock the grounding knife switch 2.

[0038] The identity identifier 46 may be a fingerprint identifier or a face identifier, etc.

[0039] Of course, in order to facilitate operation, the display screen 45 can also be set as a touch screen, and independent identity recognition areas can be set on the touch screen, such as a face recognition area and a fingerprint recognition area.

[0040] The unlocking element is connected to the control board 42 via Bluetooth, 5G or other communication methods, and the electric lock tongue 43 is remotely controlled to unlock the grounding switch 2, similar to remotely unlocking a car with a car key. The unlocking element is a relatively conventional technology, and its structure will not be described in detail here.

[0041] In addition, a circle of warning lights may be provided around the display screen 45 , and the warning lights are connected to the control board 42 . When the high-voltage cable is energized, the warning lights are powered on and illuminated.

[0042] In one embodiment, the locking seat 41 includes an upper shell 411 and a lower shell 412 detachably connected to the upper shell 411, the lower shell 412 is connected to the operation panel 1, and a mounting cavity 413 for the control board 42 and the electric control lock tongue 43 is defined between the upper shell 411 and the lower shell 412, the display screen 45 is fixed on the upper shell 411, the locking notch 44 is arranged on the upper shell 411, and a first through hole 4111 for the electric control lock tongue 43 to pass through is opened on the side wall of the locking notch 44, and the first through hole 4111 is connected to the mounting cavity 413. The detachable upper shell 411 and the lower shell 412 can facilitate the assembly of structures such as the control board 42 and the electric control lock tongue 43, and reduce the difficulty of assembly.

[0043] In this embodiment, the electric control lock tongue 43 includes a linear motor 431 and a lock tongue body 432, the linear motor 431 is in transmission connection with the lock tongue body 432, and can drive the lock tongue body 432 to move linearly, the inner side wall of the upper shell 411 is provided with a guide groove 4112, the lock tongue body 432 is slidably arranged in the guide groove 4112, and the linear motor 431 is electrically connected to the control board 42. By setting the linear motor 431 to drive the lock tongue body 432 to move, electric control locking can be achieved, and the setting of the guide groove 4112 can guide the movement of the lock tongue body 432 to prevent the movement position of the lock tongue body 432 from being offset.

[0044] In this embodiment, one side of the upper shell 411 is connected to the lower shell 412 by a hinge, and the other side is connected to the lower shell 412 by a password lock or an electronic lock. The setting of the password lock can effectively prevent other unrelated personnel from opening the locking seat 41, thereby increasing the safety of the device.

[0045] At least one protruding portion 11 is protruding from the operation panel 1, and a through hole 111 is provided on the protruding portion 11. A second through hole is provided on the lower shell 412 corresponding to the protruding portion 11. The protruding portion 11 passes through the second through hole and is plugged into the installation cavity 413. A locking pin 414 is provided in the lower shell 412 and is located on one side of the second through hole. The locking pin 414 is connected to an elastic member 415, and the elastic member 415 drives the locking pin 414 to move toward the side where the second through hole is located, and the locking pin 414 is plugged into the through hole 111. This design can prevent the entire locking seat 41 from theft. If you want to remove the locking seat 41 from the operation panel 1, you can only do so after entering a password to open the upper shell 411, because after the locking pin 414 is inserted into the through hole 111, you can only pull the locking pin 414 from the inside of the locking seat 41 to disengage the through hole 111, and you cannot pull the locking pin 414 directly from the outside.

[0046] Furthermore, the upper shell 411 includes a top plate 4113 and a first surrounding wall 4114 surrounding the top plate 4113, one end of the first surrounding wall 4114 away from the top plate 4113 extends toward the outer side of the first surrounding wall 4114 to form a first connecting plate 4115, and the lower shell 412 includes a bottom plate 4121 and a second surrounding wall 4122 surrounding the bottom plate 4121, one end of the second surrounding wall 4122 away from the bottom plate 4121 extends toward the outer side of the second surrounding wall 4122 to form a second connecting plate 4123.

[0047] The upper shell 411 and the lower shell 412 are not limited to being locked by an electronic lock, a password lock, and a hinge. The upper shell 411 and the lower shell 412 can also be connected by screws, for example: the first connecting plate 4115 and the second connecting plate 4123 are connected by screws, and the nut of the screw is located on the side of the second connecting plate 4123 away from the first connecting plate 4115. The screw connection method is relatively simple, and the nut is located on the side of the second connecting plate 4123 away from the first connecting plate 4115, which can hide the screws and prevent the upper shell 411 and the lower shell 412 from being opened at will.

[0048] In one embodiment, the operation panel 1 is provided with a groove, the locking seat 41 is installed in the groove, the locking seat 41 has a working position and a non-working position, the groove bottom of the groove has a driving member for driving the locking seat 41 to move up and down, the driving member is connected to the control panel 42, and the operation panel 1 is provided with a button for controlling the lifting and lowering of the locking seat 41. When the grounding switch 2 needs to be locked, the driving member drives the locking seat 41 to extend out of the groove, at which time the locking seat 41 is located in the working position. When the grounding switch 2 does not need to be locked, the driving member drives the locking seat 41 to retract into the groove, at which time the locking seat 41 is located in the non-working position. The above design allows the locking seat 41 to be hidden in the operation panel 1 when it is not needed, so as to prevent the locking assembly 4 from protruding from the operation panel 1 and being damaged.

Claims

1. An outdoor ring network cabinet for preventing misoperation, comprising a cabinet, an operation panel and a high-voltage cable are arranged in the cabinet, an earthing knife switch is hingedly connected to the operation panel and a gate seat is fixedly arranged, and the earthing knife switch is rotated to engage with the gate seat to realize closing, characterized in that: The operation panel is provided with a locking component, and the locking component comprises: A locking seat, wherein a control panel and an electric-controlled lock tongue are arranged in the locking seat, the locking seat comprises an upper shell and a lower shell detachably connected to the upper shell, the lower shell is connected to the operation panel, an installation cavity for the control panel and the electric-controlled lock tongue is defined between the upper shell and the lower shell, the control panel and the electric-controlled lock tongue are arranged in the installation cavity, a locking notch and a display screen are arranged at intervals on the upper shell, a first through hole for the electric-controlled lock tongue to pass through is arranged on the side wall of the locking notch, the first through hole is communicated with the installation cavity, the electric-controlled lock tongue and the display screen are both connected to the control board, a lock hole is arranged on the grounding knife switch, and when the grounding knife switch is rotated into the locking notch, the electric-controlled lock tongue passes through the first through hole and extends into the locking notch to be plugged into the lock hole; A high-voltage live detector, which is arranged on the high-voltage cable and is used to detect whether the high-voltage cable is live, and the high-voltage live detector is electrically connected to the control board; An unlocking member, the unlocking member being communicatively connected with the control panel; When the high-voltage cable is energized, the control panel will control the electric-controlled lock tongue to continuously lock the grounding switch, the unlocking piece cannot unlock the electric-controlled lock tongue, and a energized prompt is displayed on the display screen; when the high-voltage cable is not energized, the unlocking piece can unlock the electric-controlled lock tongue.

2. The outdoor ring network cabinet for preventing misoperation according to claim 1, characterized in that: The electric-controlled lock tongue includes a linear motor and a lock tongue body. The linear motor is transmission-connected to the lock tongue body and can drive the lock tongue body to move linearly. The inner side wall of the upper shell is provided with a guide groove. The lock tongue body is slidably arranged in the guide groove. The linear motor is electrically connected to the control board.

3. The outdoor ring network cabinet for preventing misoperation according to claim 1, characterized in that: The upper shell comprises a top plate and a first surrounding wall surrounding the top plate, wherein an end of the first surrounding wall away from the top plate extends toward the outer side of the first surrounding wall to form a first connecting plate; The lower shell comprises a bottom plate and a second surrounding wall surrounding the bottom plate, wherein one end of the second surrounding wall away from the bottom plate extends toward the outer side of the second surrounding wall to form a second connecting plate; The first connecting plate and the second connecting plate are connected by screws, and the nuts of the screws are located on a side of the second connecting plate away from the first connecting plate.

4. The outdoor ring network cabinet for preventing misoperation according to claim 1, characterized in that: At least one protruding portion is protruding from the operation panel, a through hole is provided on the protruding portion, a second through hole is provided on the lower shell corresponding to the protruding portion, the protruding portion passes through the second through hole and is inserted into the installation cavity, a locking pin is provided in the lower shell and located on one side of the second through hole, the locking pin is connected to an elastic member, the elastic member drives the locking pin to move toward the side where the second through hole is located, and the locking pin is inserted into the through hole.

5. The outdoor ring network cabinet for preventing misoperation according to claim 4 is characterized in that: One side of the upper shell is connected to the lower shell through a hinge, and the other side is connected to the lower shell through a password lock or an electronic lock.

6. The outdoor ring network cabinet for preventing misoperation according to any one of claims 1 to 5, characterized in that: A circle of warning lights is arranged around the display screen, and the warning lights are connected to the control panel. When the high-voltage cable is energized, the warning lights are energized and illuminated.

7. The outdoor ring network cabinet for preventing misoperation according to any one of claims 1 to 5, characterized in that: The display screen is a touch screen, and an identity recognition area is arranged on the touch screen.

8. The outdoor ring network cabinet for preventing misoperation according to any one of claims 1 to 5, characterized in that: An identity identifier is arranged at intervals on one side of the display screen, and the identity identifier is electrically connected to the control board.

9. The outdoor ring network cabinet for preventing misoperation according to any one of claims 1 to 5, characterized in that: The operating panel is provided with a groove, the locking seat is installed in the groove, the locking seat has a working position and a non-working position, the bottom of the groove has a driving member for driving the locking seat to move up and down, the driving member is connected to the control panel, and the operating panel is provided with a button for controlling the lifting and lowering movement of the locking seat. When the grounding switch needs to be locked, the driving member drives the locking seat to extend out of the groove, and the locking seat is located in the working position at this time. When the grounding switch does not need to be locked, the driving member drives the locking seat to retract into the groove, and the locking seat is located in the non-working position at this time.

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