Power distribution cabinet with protection function

Abstract

The utility model discloses a power distribution cabinet with a protection function, comprising a cabinet body and a safety pedal, the cabinet body is rotatably provided with a pair of cabinet doors, the lower part in the cabinet body is fixedly provided with a support, the two sides of the support are both provided with slide rails, the slide rails are slidably provided with slide blocks, the slide blocks are rotatably connected with connecting rods, and the connecting rods are connected with the safety pedal. The connecting rod is rotationally connected with the safety pedal, a handle is arranged on the side, close to the cabinet door, of the safety pedal, an insulation pad is fixedly installed on the other side of the safety pedal, a fixing bracket is arranged on the side, close to the cabinet door, of the support, and the lower end of the safety pedal is inserted into the inner wall of the fixing bracket. The cabinet body is provided with a ventilation drying mechanism, and a wiring hinge is connected between the cabinet body and the cabinet door, the safety pedal is arranged in the cabinet body, so that when a switch is operated in a hot-line mode, ground insulation of an operator is enhanced, and the operator is prevented from being hurt by contact voltage and step voltage.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution equipment, in particular to a power distribution cabinet with a protection function. Background Art

[0002] The distribution cabinet is an important component of electric energy distribution. With the increasing demand for electric energy, when the distribution line fails or the distribution line is routinely inspected and repaired, the operator is often required to perform relevant operations on the electrical equipment in the distribution cabinet under power. For the distribution cabinet installed in the distribution room, an insulating mat is usually laid on the floor of the distribution room to enhance the insulation of the operator to the ground when operating the switch under power, so as to avoid the harm of the operator to the contact voltage and step voltage. When the distribution cabinet is installed in an environment with poor ground insulation such as outdoors, the risk of electric shock to the operator during live operation is greatly increased. In addition, when the working environment humidity of the distribution cabinet is high, the humid environment will increase the number of charge carriers in the air. These charge carriers migrate and gather under the action of the electric field. When they reach a certain concentration, they will cause arc discharge, which poses certain safety hazards. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a power distribution cabinet with a protective function, which solves the problem that the risk of electric shock to operators is increased when the ground insulation in the installation environment of the existing power distribution cabinet is poor.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a power distribution cabinet with protective function, comprising a cabinet body and a safety pedal, a pair of cabinet doors are rotatably installed on the cabinet body, a support is fixedly installed on the lower part of the cabinet body, slide rails are provided on both sides of the support, sliders are slidably installed on the slide rails, a connecting rod is rotatably connected to the slider, the connecting rod is rotatably connected to the safety pedal, a handle is provided on the side of the safety pedal close to the cabinet door, an insulating pad is fixedly installed on the other side of the safety pedal, a fixed bracket is provided on the side of the support close to the cabinet door, the lower end of the safety pedal is inserted into the inner wall of the fixed bracket, a ventilation and drying mechanism is provided on the cabinet body, and a wiring hinge is connected between the cabinet body and the cabinet door.

[0005] Preferably, the material of the connecting rod and the material of the safety pedal are both insulating materials.

[0006] Preferably, the ventilation and drying mechanism is arranged on the ventilation window of the side wall of the cabinet and the top exhaust mechanism, a motor is fixedly installed on the inner side of the ventilation window, a fan is connected to the output end of the motor, a drying box bracket is provided on the outer side of the ventilation window, a drying box is placed in the drying box bracket, a plurality of through holes are provided on the side wall of the drying box, and the drying box is filled with desiccant.

[0007] Preferably, the top exhaust mechanism includes an upper cover, a pair of electric telescopic rods are connected between the top inner wall of the upper cover and the top outer wall of the cabinet (1), a foldable dustproof net is fixedly connected to the top inner wall of the upper cover, the top wall of the cabinet is provided with an exhaust port, and the lower end of the foldable dustproof net is fixedly connected to the outer wall of the exhaust port.

[0008] Preferably, the wiring hinge includes an upper sleeve and a lower sleeve fixedly mounted on the side wall of the cabinet body, a pivot is connected between the upper sleeve and the lower sleeve, a plurality of metal rings are provided on the pivot, a movable sleeve is rotatably connected to the outer wall of the pivot, the outer wall of the movable sleeve is fixedly connected to the cabinet door, a plurality of movable wiring terminals are provided on the movable sleeve, one end of each of the movable wiring terminals is connected to a carbon brush, the carbon brush is in contact with the metal ring, a plurality of fixed wiring terminals are provided on the lower sleeve, a bus is provided on the inner wall of the pivot, and the plurality of fixed wiring terminals are respectively electrically connected to the inner walls of the plurality of metal rings through the bus.

[0009] Preferably, the pivot is made of insulating material, a number of the movable connecting terminals and a number of the fixed connecting terminals are marked with numbers, and the movable connecting terminals and the fixed connecting terminals with the same number are electrically connected.

[0010] Beneficial Effects

[0011] The utility model provides a power distribution cabinet with a protective function, which has the following beneficial effects:

[0012] 1. This device is equipped with a safety pedal inside the cabinet, and an insulating pad is provided under the safety pedal to enhance the operator's insulation to the ground when operating the switch under power, avoiding harm to the operator from contact voltage and step voltage.

[0013] 2. At the same time, the device is equipped with a ventilation and drying mechanism, which can allow the air dried by the desiccant to circulate fully in the cabinet of the device, reduce the charge carriers, reduce or avoid the hazards of arcing, and also slow down the corrosion of the metal cabinet.

[0014] 3. A wiring hinge is provided between the cabinet body and the cabinet door of the device. The instrument indicator lights and other components on the cabinet door are connected to the corresponding electrical facilities and controls in the cabinet body through the wiring hinge, which can prevent the connection cables between the cabinet door and the cabinet body from loosening or breaking due to frequent opening and closing of the cabinet door. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model.

[0016] Figure 2 It is a side view of the utility model.

[0017] Figure 3 It is an enlarged view of point A of the present utility model.

[0018] Figure 4 It is an enlarged view of point B of the present utility model.

[0019] Figure 5 It is a structural schematic diagram of the utility model new wiring hinge.

[0020] In the figure: 1. cabinet body; 1-1. exhaust vent; 2. cabinet door; 3. safety pedal; 4. connecting rod; 5. support; 6. drying box bracket; 7. electric telescopic rod; 8. folding dust screen; 9. upper cover; 10. insulating pad; 11. slide rail; 12. slider; 13. handle; 14. fixed bracket; 15. wiring hinge; 15-1. upper sleeve; 15-2. movable sleeve; 15-3. pivot; 15-4. metal ring; 15-5. bus; 15-6. fixed terminal; 15-7. lower sleeve; 15-8. movable terminal; 15-9. carbon brush; 16. drying box; 17. motor; 18. fan; 19. ventilation window. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a technical solution: a power distribution cabinet with a protective function, comprising a cabinet body 1 and a safety pedal 3, a pair of cabinet doors 2 are rotatably mounted on the cabinet body 1, a support 5 is fixedly mounted on the lower part of the cabinet body 1, both sides of the support 5 are provided with slide rails 11, a slider 12 is slidably mounted on the slide rail 11, a connecting rod 4 is rotatably connected to the slider 12, the connecting rod 4 is rotatably connected to the safety pedal 3, a handle 13 is provided on the side of the safety pedal 3 close to the cabinet door 2, an insulating pad 10 is fixedly mounted on the other side of the safety pedal 3, a fixed bracket 14 is provided on the side of the support 5 close to the cabinet door 2, the lower end of the safety pedal 3 is inserted into the inner wall of the fixed bracket 14, a ventilation and drying mechanism is provided on the cabinet body 1, and a wiring hinge 15 is connected between the cabinet body 1 and the cabinet door 2;

[0023] Furthermore, the material of the connecting rod 4 and the material of the safety pedal 3 are both insulating materials;

[0024] After opening the cabinet door 2, the handle 13 can be pulled to remove the safety pedal 3 from the fixed bracket 14. At the same time, the connecting rod 4 can drive the slider 12 to slide toward one end of the cabinet door on the slide rails 11 on both sides of the support 5, so that the safety pedal 3 can be placed on the ground so that the operator can stand on the safety pedal to work. The insulating pad 10 can enhance the insulation effect between the safety pedal 3 and the ground. At the same time, the materials of the safety pedal 3 and the connecting rod 4 are both insulating materials. When the metal cabinet 1 is normally grounded, the safety pedal 3 is not conductive to the ground wire, thereby enhancing the insulation of the operator to the ground.

[0025] Furthermore, the ventilation and drying mechanism includes a ventilation window 19 provided on the side wall of the cabinet 1 and a top exhaust mechanism, a motor 17 is fixedly installed on the inner side of the ventilation window 19, a fan 18 is connected to the output end of the motor 17, a drying box bracket 6 is provided on the outer side of the ventilation window 19, a drying box 16 is placed in the drying box bracket 6, a plurality of through holes are provided on the side wall of the drying box 16, and a desiccant is filled in the drying box 16;

[0026] The motor 17 drives the fan 18 to draw the external air into the cabinet 1 through the drying box 16 and the ventilation window 19. The air enters the cabinet 1 after being dehydrated by the desiccant in the drying box 16, which can reduce the humidity of the internal environment of the cabinet 1. The drying box bracket 6 is used to fix the drying box 16. The drying box 16 can be movably inserted for easy replacement. The dried air is discharged from the cabinet 1 through the top exhaust mechanism, so that the dry air circulates in the cabinet 1. While keeping the environment in the cabinet 1 dry, it can also take away the heat generated by the electrical components when they are working, avoiding heat accumulation.

[0027] Furthermore, the top exhaust mechanism includes an upper cover 9, a pair of electric telescopic rods 7 are connected between the top inner wall of the upper cover 9 and the top outer wall of the cabinet 1, a folding dustproof net 8 is fixedly connected to the top inner wall of the upper cover 9, an exhaust port 1-1 is provided on the top wall of the cabinet 1, and the lower end of the folding dustproof net 8 is fixedly connected to the outer wall of the exhaust port 1-1;

[0028] When the ventilation and drying mechanism is not working, the electric telescopic rod 7 is in a shortened state, and the upper cover 9 closes the exhaust port 11. When the ventilation and drying mechanism is running, the electric telescopic rod 7 extends to lift the upper cover, and the air flow can be discharged from the cabinet 1 through the exhaust port 1-1 and the foldable dustproof net 8.

[0029] Further, the wiring hinge 15 includes an upper sleeve 15-1 and a lower sleeve 15-7 fixedly mounted on the side wall of the cabinet body 1, a pivot 15-3 is connected between the upper sleeve 15-1 and the lower sleeve 15-7, a plurality of metal rings 15-4 are arranged on the pivot 15-3, a movable sleeve 15-2 is rotatably connected to the outer wall of the pivot 15-3, the outer wall of the movable sleeve 15-2 is fixedly connected to the cabinet door 2, a plurality of movable wiring terminals 15-8 are arranged on the movable sleeve 15-2, one end of each of the plurality of movable wiring terminals is connected to a carbon brush 15-9, the carbon brush 15-9 is in contact with the metal ring 15-4, a plurality of fixed wiring terminals 15-6 are arranged on the lower sleeve 15-7, a bus 15-5 is arranged on the inner wall of the pivot 15-3, and a plurality of the fixed wiring terminals 15-6 are respectively electrically connected to the inner walls of a plurality of the metal rings 15-4 through the bus 15-5;

[0030] Furthermore, the material of the pivot 15-3 is an insulating material, and a number of the movable connecting terminals 15-8 and a number of the fixed connecting terminals 15-6 are marked with numbers, and the movable connecting terminals 15-8 with the same number are electrically connected with the fixed connecting terminals 15-6;

[0031] The movable terminal 15-8 is used to connect the instruments and other components on the cabinet door 2, and the fixed terminal is used to connect the corresponding electrical facilities in the cabinet 1. When the cabinet door 2 is opened or closed, the movable sleeve 15-2 rotates along the outer wall of the pivot 15-3, and the carbon brush 15-9 slides on the outer wall of the metal ring 15-4, so that the corresponding movable terminal 15-8 maintains electrical conduction with the fixed terminal 15-6.

[0032] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.

[0033] Embodiment: When the operator needs to operate the electrical facilities in the device under the point state, first open the cabinet door 2 of the device, pull the handle 13 to remove the safety pedal 3 from the fixed bracket 14 and place it on the ground at the front end of the device, so that the insulating pad 10 is in contact with the ground. The operator must stand on the safety pedal 3 to perform the operation to ensure good insulation to the ground. After the operation is completed, the safety pedal 3 is retracted and placed on the inner wall of the fixed bracket 14, and the cabinet door 2 is closed. When the external environment of the device is relatively humid, the motor 17 is started and the electric telescopic rod 7 is extended to lift the upper cover 9. At this time, the external air enters the cabinet 1 from the ventilation window 19 after being dehydrated by the drying box 16, and is discharged from the top of the cabinet 1 through the exhaust port 1-1 to form a dry circulating airflow. When it is necessary to connect the components on the cabinet door 2 with the corresponding electrical facilities inside the cabinet 1, first use the wire to connect the components on the cabinet door 2 with the corresponding movable terminal 15-8, and then connect the fixed terminal 15-6 corresponding to the number of the movable terminal 15-8 to the corresponding wiring point in the cabinet 1.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Although the embodiments of the utility model have been shown and described, it is understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A power distribution cabinet with a protective function, comprising a cabinet body (1) and a safety pedal (3), wherein a pair of cabinet doors (2) are rotatably mounted on the cabinet body (1), characterized in that: A support (5) is fixedly installed at the lower part of the cabinet body (1), and slide rails (11) are provided on both sides of the support (5). Slide blocks (12) are slidably installed on the slide rails (11), and a connecting rod (4) is rotatably connected to the sliding block (12). The connecting rod (4) is rotatably connected to the safety pedal (3). A handle (13) is provided on the side of the safety pedal (3) close to the cabinet door (2), and an insulating pad (10) is fixedly installed on the other side of the safety pedal (3). A fixed bracket (14) is provided on the side of the support (5) close to the cabinet door (2), and the lower end of the safety pedal (3) is inserted into the inner wall of the fixed bracket (14). A ventilation and drying mechanism is provided on the cabinet body (1), and a wiring hinge (15) is connected between the cabinet body (1) and the cabinet door (2).

2. A power distribution cabinet with protection function according to claim 1, characterized in that: The material of the connecting rod (4) and the material of the safety pedal (3) are both insulating materials.

3. A power distribution cabinet with protection function according to claim 1, characterized in that: The ventilation and drying mechanism is arranged on a ventilation window (19) on the side wall of the cabinet (1) and a top exhaust mechanism; a motor (17) is fixedly installed on the inner side of the ventilation window (19); a fan (18) is connected to the output end of the motor (17); a drying box bracket (6) is arranged on the outer side of the ventilation window (19); a drying box (16) is placed in the drying box bracket (6); a plurality of through holes are arranged on the side wall of the drying box (16); and a desiccant is filled in the drying box (16).

4. A power distribution cabinet with protection function according to claim 3, characterized in that: The top exhaust mechanism comprises an upper cover (9), a pair of electric telescopic rods (7) are connected between the top inner wall of the upper cover (9) and the top outer wall of the cabinet (1), a folding dustproof net (8) is fixedly connected to the top inner wall of the upper cover (9), an exhaust port (1-1) is provided on the top wall of the cabinet (1), and the lower end of the folding dustproof net (8) is fixedly connected to the outer wall of the exhaust port (1-1).

5. The power distribution cabinet with protection function according to claim 1, characterized in that: The wiring hinge (15) comprises an upper shaft sleeve (15-1) and a lower shaft sleeve (15-7) fixedly mounted on the side wall of the cabinet body (1); a pivot (15-3) is connected between the upper shaft sleeve (15-1) and the lower shaft sleeve (15-7); a plurality of metal rings (15-4) are provided on the pivot (15-3); a movable shaft sleeve (15-2) is rotatably connected to the outer wall of the pivot (15-3); the outer wall of the movable shaft sleeve (15-2) is fixedly connected to the cabinet door (2); and the movable shaft sleeve (15-2) is fixedly connected to the cabinet door (2). A plurality of movable connecting terminals (15-8) are provided on the shaft (15-2), one end of each of the movable connecting terminals is connected to a carbon brush (15-9), the carbon brush (15-9) is in contact with the metal ring (15-4), a plurality of fixed connecting terminals (15-6) are provided on the lower shaft sleeve (15-7), a bus (15-5) is provided on the inner wall of the pivot (15-3), and the plurality of fixed connecting terminals (15-6) are respectively electrically connected to the inner walls of the plurality of metal rings (15-4) through the bus (15-5).

6. A power distribution cabinet with protection function according to claim 5, characterized in that: The material of the pivot (15-3) is insulating material, and a plurality of the movable connecting terminals (15-8) and a plurality of the fixed connecting terminals (15-6) are marked with numbers, and the movable connecting terminals (15-8) and the fixed connecting terminals (15-6) with the same numbers are electrically connected.

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