A reset assembly for a switchgear

Abstract

The utility model discloses a reset subassembly of switch cabinet, including switch cabinet, the left side of the front surface of switch cabinet is hinged with the protective door through the hinge still includes reset subassembly, reset subassembly: it includes mounting seat no.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet technology, specifically a reset component for a switch cabinet. Background Technology

[0002] Switchgear is a key piece of equipment in power distribution systems. It carries high-voltage and high-current electrical components, so its safety and reliability are of paramount importance. To ensure the safety of maintenance personnel and the stable operation of equipment, the doors of switchgear usually need to have locking, buffering and reset functions. In the prior art, patent CN219247232U discloses a reset component for a switch cabinet, including a cabinet body. Frames are fixedly connected to the top and bottom of the cabinet's inner cavity. A door panel is provided between the two frames. A rotating shaft is fixedly connected inside the door panel, extending into the two frames and rotatably connected to them. A positioning mechanism and a reset mechanism are respectively provided inside the frames. The positioning mechanism includes a positioning block, fixedly connected to one side of the rotating shaft. A trapezoidal locking block is slidably connected to the bottom of the frame's inner cavity, extending into the inner side of the trapezoidal locking block. A support plate is fixedly connected to the bottom of the frame's inner cavity, and a spring is fixedly connected to one side of the support plate, with one side of the spring abutting against one side of the trapezoidal locking block. The reset components of this type of switchgear have the following disadvantages: the door panel is reset by applying a reset force through a spring, and the door panel often experiences a violent impact due to inertia at the end of the closing process, which can easily lead to damage to the door panel or the cabinet. Therefore, we propose a reset component for switchgear. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a reset component for a switch cabinet. Through the reset component, the movement of the protective door causes the piston to move, thereby pressurizing the gas in the cylinder. In conjunction with the one-way throttle valve to limit the backflow speed of the high-pressure oil, the protective door can be closed more smoothly and at an adjustable speed. This avoids the door panel from colliding with the cabinet due to excessive inertia during the closing process, which could cause damage. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a reset assembly for a switch cabinet, comprising a switch cabinet, wherein a protective door is hinged to the left side of the front surface of the switch cabinet via a hinge, and further comprising a reset assembly; The reset assembly includes a mounting base 1, a movable rod, a fixed rod, a mounting base 2, a rotating shaft 1, a connecting rod, and a fixing pin 1. The mounting base 1 is fixedly connected to the lower rear surface of the protective door. The movable rod is rotatably connected to the rear side of the mounting base 1. The mounting base 2 is fixedly connected to the inner left surface of the switch cabinet. The rotating shaft 1 is rotatably connected to the upper surface of the mounting base 2. The fixed rod is fixedly connected to the lower outer surface of the rotating shaft 1. The rear end of the movable rod is slidably connected to the inside of the fixed rod. The connecting rod is fixedly connected to the upper outer surface of the rotating shaft 1. The fixing pin 1 is fixedly connected to the right end of the connecting rod. Through the reset assembly, the piston moves by the movement of the protective door, thereby pressurizing the gas in the cylinder. In conjunction with the one-way throttle valve to limit the backflow speed of the high-pressure oil, the protective door closes more smoothly and at an adjustable speed, preventing the door panel from colliding with the cabinet due to excessive inertia during closing and causing damage.

[0005] Furthermore, the reset assembly also includes a lever, a limiting groove, and a second rotating shaft. The second rotating shaft is rotatably connected to the lower interior of the switch cabinet. A lever is fixedly connected to the outer surface of the second rotating shaft. Limiting grooves are opened on both the left and right sides of the upper surface of the lever. A fixing pin is slidably connected to the limiting groove on the left side, so that only a small amount of force is needed to compress the gas when opening the door.

[0006] Furthermore, the reset assembly also includes a cylinder, a piston rod, a second fixing pin, a hydraulic cylinder, a one-way throttle valve, and a piston. The cylinder is fixedly connected to the lower interior of the switch cabinet. A piston rod is slidably connected to the front interior of the cylinder. A second fixing pin is fixedly connected to the front upper surface of the piston rod. The second fixing pin is slidably connected to the right-side limiting groove. A piston is fixedly connected to the rear end of the piston rod. The piston is slidably connected to the interior of the cylinder. A hydraulic cylinder is fixedly connected to the lower interior of the switch cabinet. The hydraulic cylinder and the front end of the cylinder are connected by a pipe. A one-way throttle valve is connected in series inside the pipe to adjust the reset speed of the protective door.

[0007] Furthermore, a slider is slidably connected to the inside left side of the switch cabinet. A second spring is fixedly connected between the lower surface of the stepped surface of the outer surface of the slider and the inner wall of the switch cabinet. The second spring is sleeved on the outer surface of the slider. A crossbar is fixedly connected to the lower end of the slider to limit the movement of the protective door.

[0008] Furthermore, a slide rod is slidably connected to the lower side of the front surface of the switch cabinet. A fixing block is fixedly connected to the front end of the slide rod, and a limit block is fixedly connected to the rear end of the slide rod. A spring is fixedly connected between the front surface of the limit block and the inner wall of the switch cabinet. The spring is set on the outer surface of the slide rod to unlock the slider.

[0009] Furthermore, a glass observation window is fixedly connected to the upper side of the front surface of the switch cabinet to facilitate observation of the internal condition of the switch cabinet.

[0010] Furthermore, a door lock is fixedly connected to the right side of the front surface of the protective door to lock the protective door.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The reset component of this switchgear has the following advantages: By using the reset assembly, the movement of the protective door causes the piston to move, thereby pressurizing the gas in the cylinder. Combined with the one-way throttle valve to limit the backflow speed of the high-pressure oil, the protective door closes more smoothly and at an adjustable speed, preventing the door panel from colliding with the cabinet due to excessive inertia during the closing process and causing damage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the reset component of this utility model; Figure 4 This is an enlarged structural diagram of point A in this utility model; Figure 5 This is a cross-sectional view of the cylinder of this utility model.

[0013] In the diagram: 1 Switch cabinet, 2 Glass observation window, 3 Protective door, 4 Door lock, 5 Sliding rod, 6 Fixing block, 7 Spring 1, 8 Limiting block, 9 Reset assembly, 901 Mounting base 1, 902 Movable rod, 903 Fixing rod, 904 Mounting base 2, 905 Rotating shaft 1, 906 Connecting rod, 907 Fixing pin 1, 908 Lever, 909 Limiting groove, 910 Rotating shaft 2, 911 Cylinder, 912 Piston rod, 913 Fixing pin 2, 914 Hydraulic cylinder, 915 One-way throttle valve, 916 Piston, 10 Sliding block, 11 Spring 2, 12 Crossbar. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 This embodiment provides a technical solution: a reset component for a switch cabinet, including a switch cabinet 1, a glass observation window 2 fixedly connected to the upper side of the front surface of the switch cabinet 1, a protective door 3 hinged to the left side of the front surface of the switch cabinet 1 via a hinge, a door lock 4 fixedly connected to the right side of the front surface of the protective door 3, and also includes a reset component 9. Reset assembly 9 includes a mounting base 901, a movable rod 902, a fixed rod 903, a mounting base 904, a rotating shaft 905, a connecting rod 906, and a fixing pin 907. Mounting base 901 is fixedly connected to the lower rear surface of the protective door 3. The movable rod 902 is rotatably connected to the rear side of mounting base 901. Mounting base 904 is fixedly connected to the inner left surface of the switch cabinet 1. The rotating shaft 905 is rotatably connected to the upper surface of mounting base 904. The fixed rod 903 is fixedly connected to the lower outer surface of the rotating shaft 905. The rear end of the movable rod 902 is slidably connected to the inside of the fixed rod 903. The connecting rod 906 is fixedly connected to the upper outer surface of the rotating shaft 905. The fixing pin 907 is fixedly connected to the right end of the connecting rod 906. It also includes a lever 908, a limiting groove 909, and a second rotating shaft 910. The second rotating shaft 910 is rotatably connected to the lower interior of the switch cabinet 1. The lever 908 is fixedly connected to the outer surface of the second rotating shaft 910. Limiting grooves 909 are formed on both the left and right sides of the upper surface of the lever 908. A first fixing pin 907 is slidably connected to the left limiting groove 909. The reset assembly 9 also includes a cylinder 911, a piston rod 912, a second fixing pin 913, a hydraulic cylinder 914, a one-way throttle valve 915, and a piston 916. The cylinder 911 is fixedly connected to the lower interior of the switch cabinet 1. The piston rod 912 is slidably connected to the front interior of the cylinder 911. The second fixing pin 913 is fixedly connected to the front upper surface of the piston rod 912. The second fixing pin 913 is slidably connected to the right limiting groove 909. Inside 09, a piston 916 is fixedly connected to the rear end of piston rod 912 (an O-ring rubber seal is fixedly connected to the outer surface of piston 916, which contacts the inner wall of cylinder 911; an O-ring rubber seal is fixedly connected to the left side of the inside of cylinder 911, whose inner arc surface contacts the outer surface of piston rod 912, thus ensuring the sealing of cylinder 911). Piston 916 is slidably connected inside cylinder 911. A hydraulic cylinder 914 is fixedly connected to the lower side of the inside of switch cabinet 1. The hydraulic cylinder 914 is connected to the front end of cylinder 911 via a pipe. A one-way throttle valve 915 is connected in series inside the pipe. When it is necessary to adjust the reset speed of protective door 3, the valve stem of one-way throttle valve 915 is rotated. The speed at which high-pressure oil flows back to cylinder 914 is adjusted, thereby adjusting the speed at which compressed air pushes piston 916, and thus adjusting the reset speed of the protective door. Opening door lock 4 and pulling protective door 3 clockwise causes it to rotate around the pin inside the hinge, moving mounting base 901, which in turn moves movable rod 902. This causes fixed rod 903 to rotate around the central axis of rotating shaft 905, which in turn moves connecting rod 906 around rotating shaft 905 (at this time, fixed rod 903 is located to the right of slider 10). This causes fixed pin 907 to rotate around the central axis of rotating shaft 905, and fixed pin 907 moves within the left-side limiting groove 909, causing lever 908 to rotate around rotating shaft 910, which in turn moves fixed pin 913.The piston rod 912 moves backward, causing the piston 916 to move backward inside the cylinder 911, thereby compressing the gas inside the rear side of the cylinder 911. At this time, the volume of the front side of the piston 916 increases, and the high-pressure oil inside the oil cylinder 914 enters the front side of the cylinder 911 through the pipeline and the one-way throttle valve 915. At this time, the protective door 3 is released, and the compressed air pushes the piston 916 to reset, causing the piston rod 912 to reset, causing the fixed pin 2 913 to reset, causing the lever 908 to reset, causing the fixed pin 1 907 to reset, causing the connecting rod 906 to reset, causing the fixed rod 903 to reset, and causing the movable rod 902 to reset. The position drives the mounting base 901 to reset, thereby closing the protective door 3. A slider 10 is slidably connected to the left side of the inside of the switch cabinet 1. A spring 11 is fixedly connected between the lower surface of the stepped surface of the outer surface of the slider 10 and the inner wall of the switch cabinet 1. The spring 11 is sleeved on the outer surface of the slider 10. A crossbar 12 is fixedly connected to the lower end of the slider 10. A slide rod 5 is slidably connected to the lower side of the front surface of the switch cabinet 1. A fixing block 6 is fixedly connected to the front end of the slide rod 5. A limit block 8 is fixedly connected to the rear end of the slide rod 5. A spring 7 is fixedly connected between the front surface of the limit block 8 and the inner wall of the switch cabinet 1. The protective door 3 is fitted onto the outer surface of the slide bar 5 (the lower side of the front surface of the switch cabinet 1 is a protective plate fixed by bolts, which can be removed to replace spring 7 and spring 11, preventing the spring force of spring 7 and spring 11 from decreasing due to long-term use). When the switch cabinet 1 needs to be operated for a long time, the protective door 3 is rotated, causing the protective door 3 to rotate around the pin inside the hinge, which drives the mounting base 901 to move, causing the movable rod 902 to move, which drives the fixed rod 903 to rotate around the central axis of the rotating shaft 905 and press the inclined surface on the upper side of the slider 10, causing the slider 10 to move downward. Spring 11 contracts until the fixed rod 903 moves to the left side of slider 10. Then, spring 11 relaxes, pushing slider 10 back to its original position. At this point, slider 10 prevents the protective door 3 from resetting, thus limiting its movement. When it is necessary to close the protective door 3, the operator can push the fixed block 6 backward with their foot. The fixed block 6 moves backward, causing the sliding rod 5 to move backward, which in turn moves the limiting block 8 backward. Spring 7 relaxes, and the inclined surface behind the limiting block 8 presses against the horizontal bar 12, causing it to move downward. This moves slider 10 downward, preventing it from blocking the protective door 3, which then resets as before.

[0016] The working principle of the reset assembly of the switchgear provided by this utility model is as follows: When using the switchgear, open the door lock 4, pull the protective door 3 clockwise, causing the protective door 3 to rotate around the pin inside the hinge, driving the mounting base 901 to move, causing the movable rod 902 to move, driving the fixed rod 903 to rotate around the central axis of the rotating shaft 905, driving the connecting rod 906 around the rotating shaft 905 (at this time, the fixed rod 903 is located on the right side of the slider 10), causing the fixed pin 907 to rotate around the central axis of the rotating shaft 905, and the fixed pin 907 to move in the left limit groove 909, driving the lever 908 to rotate around the rotating shaft 910. This causes the fixed pin 913 to move, moving the piston rod 912 backward. This, in turn, causes the piston 916 to move backward inside the cylinder 911, thus compressing the gas inside the rear side of the cylinder 911. At this time, the volume of the front side of the piston 916 increases, and the high-pressure oil inside the oil cylinder 914 enters the front side of the cylinder 911 through the pipeline and the one-way throttle valve 915. At this point, the protective door 3 is released, and the compressed air pushes the piston 916 to reset, causing the piston rod 912 to reset, which in turn causes the fixed pin 913 to reset, making the lever 908 reset, which in turn causes the fixed pin 907 to reset, making the connecting rod 906 reset, which in turn causes the fixed rod 903 to reset, making the movable rod 902 reset. This causes the mounting base 901 to reset, thereby closing the protective door 3. When the reset speed of the protective door 3 needs to be adjusted, the valve stem of the one-way throttle valve 915 is rotated to adjust the speed at which high-pressure oil flows back to the oil cylinder 914, thereby adjusting the speed at which compressed air pushes the piston 916, thus adjusting the reset speed of the protective door. When the switch cabinet 1 needs to be operated for a long time, the protective door 3 is rotated, causing the protective door 3 to rotate around the pin inside the hinge, moving the mounting base 901, moving the movable rod 902, and causing the fixed rod 903 to rotate around the central axis of the rotating shaft 905 and press the upper part of the slider 10. The inclined surface on the side causes the slider 10 to move downwards, and the second spring 11 contracts until the fixed rod 903 moves to the left side of the slider 10. Then the second spring 11 relaxes, pushing the slider 10 to reset. At this time, the slider 10 blocks the reset of the protective door 3, limiting the protective door 3. When it is necessary to close the protective door 3, the operator can push the fixed block 6 backwards with their foot. The fixed block 6 moves backwards, driving the slide rod 5 to move backwards, driving the limiting block 8 to move backwards. The first spring 7 relaxes. At this time, the inclined surface on the rear side of the limiting block 8 presses the crossbar 12, causing the crossbar 12 to move downwards, driving the slider 10 to move downwards, so that the slider 10 no longer blocks the protective door 3, and the protective door 3 resets as above.

[0017] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A reset assembly for a switch cabinet, comprising a switch cabinet (1), wherein a protective door (3) is hinged to the left side of the front surface of the switch cabinet (1) via a hinge, characterized in that: It also includes a reset component (9); Reset assembly (9): It includes mounting base one (901), movable rod (902), fixed rod (903), mounting base two (904), rotating shaft one (905), connecting rod (906) and fixing pin one (907). Mounting base one (901) is fixedly connected to the lower side of the rear surface of the protective door (3). The movable rod (902) is rotatably connected to the rear side of mounting base one (901). Mounting base two (904) is fixedly connected to the inner left surface of the switch cabinet (1). The rotating shaft one (905) is rotatably connected to the upper surface of mounting base two (904). The fixed rod (903) is fixedly connected to the lower side of the outer surface of rotating shaft one (905). The rear end of the movable rod (902) is slidably connected to the inside of the fixed rod (903). The connecting rod (906) is fixedly connected to the upper side of the outer surface of rotating shaft one (905). The fixing pin one (907) is fixedly connected to the right end of the connecting rod (906).

2. The reset assembly for a switchgear according to claim 1, characterized in that: The reset assembly (9) also includes a lever (908), a limiting groove (909), and a second rotating shaft (910). The second rotating shaft (910) is rotatably connected to the lower interior of the switch cabinet (1). The lever (908) is fixedly connected to the outer surface of the second rotating shaft (910). Limiting grooves (909) are opened on both the left and right sides of the upper surface of the lever (908). The first fixing pin (907) is slidably connected in the limiting groove (909) on the left side.

3. The reset assembly for a switchgear according to claim 2, characterized in that: The reset assembly (9) also includes a cylinder (911), a piston rod (912), a fixing pin (913), a hydraulic cylinder (914), a one-way throttle valve (915), and a piston (916). The cylinder (911) is fixedly connected to the lower inside of the switch cabinet (1). The piston rod (912) is slidably connected to the front inside of the cylinder (911). The fixing pin (913) is fixedly connected to the front upper surface of the piston rod (912). The fixing pin (913) is slidably connected to the right limit groove (909). The piston (916) is fixedly connected to the rear end of the piston rod (912). The piston (916) is slidably connected to the inside of the cylinder (911). The hydraulic cylinder (914) is fixedly connected to the lower inside of the switch cabinet (1). The hydraulic cylinder (914) and the front end of the cylinder (911) are connected by a pipe. A one-way throttle valve (915) is connected in series inside the pipe.

4. The reset assembly for a switchgear according to claim 1, characterized in that: The switch cabinet (1) has a slider (10) slidably connected to the left side inside. A spring (11) is fixedly connected between the lower surface of the stepped surface of the outer surface of the slider (10) and the inner wall of the switch cabinet (1). The spring (11) is sleeved on the outer surface of the slider (10). A crossbar (12) is fixedly connected to the lower end of the slider (10).

5. The reset assembly for a switchgear according to claim 1, characterized in that: A slide rod (5) is slidably connected to the lower side of the front surface of the switch cabinet (1). A fixing block (6) is fixedly connected to the front end of the slide rod (5). A limit block (8) is fixedly connected to the rear end of the slide rod (5). A spring (7) is fixedly connected between the front surface of the limit block (8) and the inner wall of the switch cabinet (1). The spring (7) is sleeved on the outer surface of the slide rod (5).

6. The reset assembly for a switchgear according to claim 1, characterized in that: A glass observation window (2) is fixedly connected to the upper side of the front surface of the switch cabinet (1).

7. The reset assembly for a switchgear according to claim 1, characterized in that: A door lock (4) is fixedly connected to the right side of the front surface of the protective door (3).

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