Anti-electric shock locking device of high-voltage switch cabinet

Abstract

The utility model relates to the technical field of locking devices, and discloses an anti-electric shock locking device for a high-voltage switch cabinet, which comprises a switch cabinet body, an anti-electric shock assembly, a power supply assembly and a power supply assembly, the anti-electric-shock assembly is arranged on the top surface of the interior of the switch cabinet body and used for preventing an operator from electric shock, and the switch cabinet body, the handcart, the fixing groove, the supporting plate and the side plates are used in cooperation, so that the anti-electric-shock protection function of the operator can be achieved; a human body sensing radar, a millimeter wave human body existence sensor and a second human body infrared sensor are arranged for human body detection, a warning signal is sent out through an audible and visual alarm, when a human body enters a depth area, a limiting frame locks a busbar baffle, misoperation opening is avoided, meanwhile, a quick grounding switch is kept in a grounding state, and the safety of a user is guaranteed. And the whole scheme is safe, reliable and convenient to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to a locking device technical field especially relates to a high -voltage switch cabinet anti -electric shock locking device. BACKGROUND

[0002] High-voltage switch cabinet is a kind of complete electrical equipment for control, protection and distribution of high-voltage electric energy in power system, usually installed in substation, distribution room, industrial plant and other places. Its core function is to operate the high-voltage circuit through circuit breaker, disconnecting switch, fuse, mutual inductor and other components, fault isolation and overload / short circuit protection, to ensure the safe and stable operation of power grid.

[0003] In the prior art, the current 35kV and above high-voltage switch cabinet generally adopts "five-prevention" mechanical interlocking system, but there is a blind area of protection under the maintenance condition: when the handcart is withdrawn to the test / maintenance position, although the circuit breaker loop is cut off, the bus side static contact may still be live, and the traditional protection relies on baffle mechanical locking and manual voltage test, which has two hidden dangers: misoperation risk: maintenance personnel may unlock the baffle in violation of regulations; Residual voltage risk: capacitive effect may cause static contact to remain dangerous voltage, Therefore, it is necessary to provide a high-voltage switch cabinet anti-electric shock locking device to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a high-voltage switch cabinet anti-electric shock locking device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of high-voltage switch cabinet anti-electric shock locking device, including switch cabinet body, the inside of the switch cabinet body is provided with handcart, the inside top surface of the switch cabinet body is provided with PLC controller, further include: anti-electric shock component, the inside top surface of the switch cabinet body is provided with the anti-electric shock component, for preventing operating personnel electric shock, the anti-electric shock component includes: fixed slot, the inside top surface of the switch cabinet body is opened in the fixed slot, support plate is movably sleeved in the inside of the fixed slot, the bottom surface of the support plate is opened with two first circular through holes and two first rectangular through holes, the inside of the first circular through hole and the first rectangular through hole is fixedly sleeved with human body induction radar and first human body infrared sensor respectively, fixed pipe frame is fixedly installed on one side of the inside of the switch cabinet body, the inner circular wall surface of the fixed pipe frame is movably sleeved with limit frame, the inside of the switch cabinet body is provided with right-angle speed reducer motor, the drive shaft of the right-angle speed reducer motor is fixedly installed at one end with the limit frame, quick grounding switch is fixedly installed on one side of the inside of the switch cabinet body, two side plates are fixedly installed on the bottom surface of the support plate, travel switch is fixedly installed on one side of the side plate, the runner of travel switch is abutted with one side of handcart.

[0007] As a further scheme of the utility model, two second circular through holes are formed on one side of the supporting plate, and a millimeter wave human existence sensor and a second human infrared sensor are respectively fixedly sleeved on the inner circular wall surface of the second circular through hole.

[0008] As a further scheme of the utility model, a fixing plate is fixedly installed on the top surface of the fixed pipe frame, and the fixing plate is fixedly installed with the right-angle speed reducer.

[0009] As a further scheme of the utility model, a plurality of fixing holes are formed on one side of the fixed pipe frame.

[0010] As a further scheme of the utility model, a threaded hole is formed on the inner top surface of the fixed groove, a plurality of mounting holes are formed on the top surface of the supporting plate, and a threaded column is threadedly connected with the inner circular wall surface of the mounting hole.

[0011] As a further scheme of the utility model, two sound-light alarms are fixedly installed on the bottom surface of the supporting plate, and the sound-light alarm, the millimeter wave human existence sensor, the second human infrared sensor, the human sensing radar, the first human infrared sensor, the travel switch, the quick grounding switch and the right-angle speed reducer are electrically connected with the PLC controller.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The switch cabinet body, the handcart, the fixed groove, the supporting plate and the side plate are cooperatively used to achieve the anti-electric shock protection function of the operating personnel, the human sensing radar, the millimeter wave human existence sensor and the second human infrared sensor are used for human detection, and the sound-light alarm is used for sending a warning signal, when the human body enters the deep area, the limiting frame is used for locking the busbar row baffle to avoid the misoperation opening, meanwhile, the quick grounding switch is kept in the grounding state to further strengthen the anti-electric shock effect, and the utility model is practical.

[0014] 2. When in use, the threaded column is inserted into the threaded hole at the top of the fixed groove and the mounting hole to realize the modular installation and dismounting of the supporting plate, and the bolt is inserted into the fixing hole to facilitate the maintenance of the components. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an overall structure schematic view of the anti-electric shock locking device of the high-voltage switch cabinet.

[0016] Figure 2 It is a switch cabinet body structure schematic view of the anti-electric shock locking device of the high-voltage switch cabinet.

[0017] Figure 3 As Figure 2 The local structure schematic view of A in the embodiment;

[0018] Figure 4 The support plate structure schematic view of the anti-electric shock locking device of the high-voltage switch cabinet is provided in the utility model;

[0019] Figure 5 The fixed pipe frame structure schematic view of the anti-electric shock locking device of the high-voltage switch cabinet is provided in the utility model;

[0020] Figure 6 The quick grounding switch structure schematic view of the anti-electric shock locking device of the high-voltage switch cabinet is provided in the utility model;

[0021] Figure 7 The millimeter wave human body existence inductor structure schematic view of the anti-electric shock locking device of the high-voltage switch cabinet is provided in the utility model.

[0022] In the drawing: 1, switch cabinet body; 2, handcart; 3, fixed groove; 4, support plate; 5, side plate; 6, travel switch; 7, human body induction radar; 8, first human body infrared sensor; 9, fixed pipe frame; 10, limiting frame; 11, right-angle speed reducer motor; 12, quick grounding switch; 13, audible and visual alarm; 14, millimeter wave human body existence inductor; 15, second human body infrared sensor; 16, fixed plate; 17, fixed hole; 18, mounting hole; 19, threaded column. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] In the description of the utility model, it should be pointed out that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like are the directions or position relations shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in that the indicated devices or elements must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the utility model, it is necessary to explain that, unless there are definite provisions and limitations, the terms "mounting", "setting", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements, the specific meaning of the above terms in the utility model can be understood according of the specific circumstances by the ordinary skilled in the art.

[0026] Referring to Figures 1-7 A kind of high-voltage switchgear anti-electric shock locking device, including switch cabinet body 1, the inside of switch cabinet body 1 is provided with handcart 2 (inside mainly refers to the inside of intermediate chamber, in the drawing in opening cabinet door state, close cabinet door when using), the inside top surface of switch cabinet body 1 is provided with PLC controller, further including: anti-electric shock component, anti-electric shock component is set in the inside top surface of switch cabinet body 1, for preventing operating personnel electric shock, anti-electric shock component includes: fixed groove 3, fixed groove 3 is opened in the inside top surface of switch cabinet body 1, support plate 4 is movably sleeved in the inside of fixed groove 3, the bottom surface of support plate 4 is provided with two first circular through holes and two first rectangular through holes, the inside of first circular through hole and first rectangular through hole is fixedly sleeved with human body sensing radar 7 and first human body infrared sensor 8 respectively, fixed pipe frame 9 is fixedly installed on one side in the inside of switch cabinet body 1, limit frame 10 is movably sleeved on the inner circular wall surface of fixed pipe frame 9, right-angle speed reducer motor 11 is provided in the inside of switch cabinet body 1, the drive shaft of right-angle speed reducer motor 11 is fixedly installed at one end with limit frame 10, quick grounding switch 12 is fixedly installed on one side in the inside of switch cabinet body 1, two side plates 5 are fixedly installed on the bottom surface of support plate 4, travel switch 6 is fixedly installed on one side of side plate 5, the rotating wheel of travel switch 6 is abutted with one side of handcart 2.

[0027] When using, the inside of switch cabinet body 1 is detected by the human body sensing radar 7 and first human body infrared sensor 8 set, when detecting that someone enters, sound and light alarm is sent through quick grounding switch 12, personnel is reminded to keep safe distance, simultaneously, the detection is carried out to the direction of side busbar baffle by the millimeter wave human body presence sensor 14 and second human body infrared sensor 15 set in the direction of inclination, when still detecting that human body exists, right-angle speed reducer motor 11 is started to drive fixed pipe frame 9 to rotate, fixed pipe frame 9 of rotation drives limit frame 10 to move to the up and down position of side busbar baffle, limit frame 10 is mechanically limited to baffle, to prevent baffle accidental opening, simultaneously, quick grounding switch 12 is automatically grounded to side busbar contact, double protection avoids the risk of electric shock.

[0028] In the embodiment, two second circular through holes are formed in one side of the support plate 4, the inner circumferential wall surface of the second circular through holes is respectively fixedly sleeved with a millimeter wave human existence sensor 14 and a second human infrared sensor 15, the top surface of the fixed pipe frame 9 is fixedly installed with a fixed plate 16, the fixed plate 16 is fixedly installed with the right-angle speed reducer motor 11, one side of the fixed pipe frame 9 is provided with a plurality of fixing holes 17, the inner top surface of the fixed groove 3 is provided with a threaded hole, the top surface of the support plate 4 is provided with a plurality of mounting holes 18, the inner circumferential wall surface of the mounting hole 18 is threadedly connected with a threaded column 19, the bottom surface of the support plate 4 is fixedly installed with two sound-light alarms 13, the sound-light alarms 13, the millimeter wave human existence sensor 14, the second human infrared sensor 15, the human body sensing radar 7, the first human infrared sensor 8, the travel switch 6, the quick grounding switch 12 and the right-angle speed reducer motor 11 are electrically connected with a PLC controller.

[0029] In use, the threaded column 19 is inserted into the mounting hole 18 and the threaded hole at the top of the fixed groove 3, so that the modular installation and disassembly of the support plate 4 can be realized, and in the same way, the bolts are inserted into the fixing holes 17, so that the maintenance of the components is facilitated, and it should be particularly noted that the quick grounding switch 12 should be installed in the cable chamber (low-voltage area below the bus chamber) of the switch cabinet body 1, so as to avoid the high-voltage dangerous area.

[0030] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0031] Through the switch cabinet body 1, when the switch cabinet body 1 is used, the quick grounding switch 12 is connected with the electrode of the side busbar, and the quick grounding switch 12 is grounded, when the switch is powered off, the circuit breaker trolley is pulled out from the inside of the switch cabinet body 1 by using the trolley 2, at this time, the high-voltage side busbar (busbar contact) of the switch cabinet body 1 is electrified, and the cabinet baffle is closed, at this time, the operator operates the inside of the switch cabinet body 1, in order to avoid electric shock, the protection mechanism is triggered by the travel switch 6: when the circuit breaker trolley is pulled out from the inside of the switch cabinet body 1 by using the trolley 2, at this time, the baffle of the high-voltage side busbar is closed, and the side of the circuit breaker trolley 2 no longer presses the trolley travel switch 6, and then the PLC controller detects that the circuit breaker trolley 2 has been pulled out from the inside of the switch cabinet body 1, at this time, the anti-electric shock assembly enters the working state, the inside of the switch cabinet body 1 is detected by the human body sensing radar 7 and the first human body infrared sensor 8, when a human body is detected, the audible and visual alarm is sent out by the quick grounding switch 12, reminding the personnel to keep a safe distance, at the same time, the millimeter wave human body presence sensor 14 and the second human body infrared sensor 15 are arranged in a tilt manner and are arranged towards the side busbar baffle direction, when the human body is still detected, the right-angle speed reducer motor 11 is started to drive the fixed pipe frame 9 to rotate, the fixed pipe frame 9 drives the limiting frame 10 to move to the upper and lower positions of the side busbar baffle, the baffle is mechanically limited and locked by the limiting frame 10, so that the baffle is prevented from being accidentally opened, at the same time, the quick grounding switch 12 automatically grounds the side busbar contact, so that the risk of electric shock is avoided, and the effect of protecting the operator from electric shock is achieved, the human body is detected by the human body sensing radar 7, the millimeter wave human body presence sensor 14 and the second human body infrared sensor 15, and the warning signal is sent out by the audible and visual alarm 13, when the human body enters the deep area, the limiting frame 10 locks the busbar baffle, so that the baffle is prevented from being opened by mistake, and the quick grounding switch 12 remains in the grounding state, so that the effect of preventing electric shock is further strengthened, and the utility model is practical.

[0032] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A high-voltage switch cabinet anti-electric shock locking device, comprising a switch cabinet body (1), the inside of the switch cabinet body (1) is provided with a handcart (2), and the inside top surface of the switch cabinet body (1) is provided with a PLC controller, characterized in that, Also include: The anti-electric shock assembly is arranged on the inner top surface of the switch cabinet body (1), which is used for preventing the electric shock of the operator, and the anti-electric shock assembly comprises: a fixed groove (3) which is arranged on the inner top surface of the switch cabinet body (1), a support plate (4) which is movably sleeved in the fixed groove (3), two first circular through holes and two first rectangular through holes which are arranged on the bottom surface of the support plate (4), a human body induction radar (7) and a first human body infrared sensor (8) which are movably sleeved in the first circular through hole and the first rectangular through hole respectively, a fixed pipe frame (9) which is fixedly installed on one side of the inner top surface of the switch cabinet body (1), a limiting frame (10) which is movably sleeved on the inner circular wall surface of the fixed pipe frame (9), a right-angle speed reducer (11) which is arranged in the switch cabinet body (1), a drive shaft of the right-angle speed reducer (11) is fixedly installed on one end of the limiting frame (10), a quick grounding switch (12) which is fixedly installed on one side of the inner top surface of the switch cabinet body (1), two side plates (5) which are fixedly installed on the bottom surface of the support plate (4), a travel switch (6) which is fixedly installed on one side of the side plate (5), and a handcart (2) which is abutted with a rotating wheel of the travel switch (6).

2. The electric shock prevention locking device for high voltage switch cabinet according to claim 1, characterized in that, A second circular through hole is arranged on one side of the support plate (4), and a millimeter wave human body presence sensor (14) and a second human body infrared sensor (15) are fixedly sleeved on the inner circular wall surface of the second circular through hole.

3. The electric shock prevention locking device for high voltage switch cabinet according to claim 1, characterized in that, A fixed plate (16) is fixedly installed on the top surface of the fixed pipe frame (9), and the fixed plate (16) is fixedly installed on the right-angle speed reducer (11).

4. The electric shock prevention locking device for high voltage switch cabinet according to claim 1, characterized in that, A plurality of fixed holes (17) are arranged on one side of the fixed pipe frame (9).

5. The electric shock prevention locking device for high voltage switch cabinet according to claim 1, characterized in that, A threaded hole is arranged on the inner top surface of the fixed groove (3), and a plurality of mounting holes (18) are arranged on the top surface of the support plate (4), and a threaded column (19) is threadedly connected to the inner circular wall surface of the mounting hole (18).

6. The electric shock prevention locking device for high voltage switch cabinet according to claim 1, characterized in that, Two sound-light alarms (13) are fixedly installed on the bottom surface of the support plate (4), and the sound-light alarm (13), the millimeter wave human body presence sensor (14), the second human body infrared sensor (15), the human body induction radar (7), the first human body infrared sensor (8), the travel switch (6), the quick grounding switch (12) and the right-angle speed reducer (11) are electrically connected to the PLC controller respectively.

Images