Square Ceramic Fuse Removal Device

Abstract

The present invention provides a square ceramic fuse removal device, which belongs to the field of power maintenance technology, and includes a box seat, a gripper assembly and a driving mechanism; wherein, the top surface of the box seat is provided with an operating handle and a button switch, a battery is provided inside, and the bottom surface is provided with a sliding frame extending perpendicular to the bottom surface of the box seat, and the extended end of the sliding frame is used to abut against the mounting base; the gripper assembly is slidably connected to the sliding frame along the extension direction of the sliding frame, and the gripper assembly has a passing state in which it is compressed and retracted when it abuts against the square fuse, and also has a grasping state in which it automatically unfolds after crossing the square fuse and is clamped with the side wall of the square fuse toward its mounting base; the driving mechanism is arranged in the box seat, connected to the gripper assembly, and electrically connected to the battery and the button switch respectively, and is used to drive the gripper assembly to reciprocate on the sliding frame. The square ceramic fuse removal device provided by the present invention is safe and reliable to operate, and can avoid damaging the mounting base.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power maintenance, and more specifically, relates to a square ceramic fuse removal device. Background Art

[0002] The secondary DC power supply in the substation mostly uses square ceramic fuses, which are installed by directly clamping on their mounting bases. When maintenance personnel need to remove the square ceramic fuses for inspection, they need to manually pull them out from the holder. The specific disassembly process mostly uses a pry bar or a screwdriver to insert one end of the mounting base into the gap between the square ceramic fuse and the mounting base. While prying the square ceramic fuse upward with one hand, the other hand needs to grasp its ceramic shell and pull it hard. For the tightly fixed square ceramic fuse, violent operations such as shaking left and right are also required during the removal process. This operation method is very easy to damage the mounting base of the square ceramic fuse, and during the disassembly process, due to the difficulty and poor stability of the maintenance personnel in exerting force, they often accidentally touch other adjacent circuits due to deformation or excessive movement, thereby causing short-circuit accidents, which directly endanger the personal safety of the maintenance personnel. Summary of the invention

[0003] The object of the present invention is to provide a square ceramic fuse removal device, aiming to solve the problem in the prior art that the installation base is easily damaged when the square ceramic fuse is removed, which poses a great safety hazard.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a square ceramic fuse removal device, comprising:

[0005] The box seat has an operating handle and a button switch on the top surface, a storage battery inside, and a sliding frame extending perpendicularly to the bottom surface of the box seat on the bottom surface, and the extended end of the sliding frame is used to abut against the mounting base;

[0006] A gripper assembly is slidably connected to the sliding frame along the extension direction of the sliding frame. The gripper assembly has a passing state in which it is compressed and retracted when it contacts the square fuse, and also has a grasping state in which it automatically unfolds after crossing the square fuse and is clamped with the side wall of the square fuse toward its mounting base;

[0007] The driving mechanism is arranged in the box seat, connected with the gripper assembly, and electrically connected with the storage battery and the button switch respectively, and is used for driving the gripper assembly to reciprocate on the sliding frame.

[0008] As another embodiment of the present application, the sliding frame includes two sliding arms arranged at intervals; the gripper assembly includes two grippers respectively slidably connected to the two sliding arms, the two grippers are arranged opposite to each other and are respectively connected to the driving mechanism, and the two grippers can slide synchronously on the two sliding arms respectively under the drive of the driving mechanism.

[0009] As another embodiment of the present application, the hand grasping includes:

[0010] A slider is slidably connected to the slide arm and connected to the driving mechanism;

[0011] The card plate is rotatably connected to the side wall between the two sliding arms of the slider. When the gripper assembly is in a gripping state, the board surface of the card plate is perpendicular to the extension direction of the sliding arm. When the gripper assembly is in a passing state, the card plate flips toward the direction of the box seat to allow the square fuse to pass between the two grippers.

[0012] As another embodiment of the present application, both ends of the slider are respectively provided with T-shaped, cross-shaped or dovetail-shaped sliding grooves, the sliding arm is frame-shaped, and the two inner frame walls of the sliding arm are respectively provided with sliding rails matching the sliding grooves, and the sliding rails are slidably connected with the sliding grooves.

[0013] As another embodiment of the present application, an axial hole is provided on the slider, an elastic element is provided in the axial hole, a pin is passed through the card plate, the pin is rotatably connected to the axial hole and is connected to the elastic element; when the card plate is converted from a stressed state to a non-stressed state, the card plate automatically flips to a state perpendicular to the extension direction of the sliding arm under the action of the elastic torque of the elastic element.

[0014] As another embodiment of the present application, the board surface of the clamping plate facing away from the box seat is a wedge-shaped surface.

[0015] As another embodiment of the present application, the driving mechanism includes:

[0016] Two lead screws are rotatably arranged on the two slide arms respectively along the extension direction of the slide arms, one end of the lead screw extends into the interior of the box seat and is provided with a first transmission wheel, and the lead screw passes through the slide block and is threadedly connected to the slide block;

[0017] The transmission shaft has two ends respectively connected to the two inner side walls of the box seat for rotation, and two ends respectively provided with second transmission wheels connected to the first transmission wheel, and the transmission shaft is also sleeved with a third transmission wheel;

[0018] The motor is arranged in the box seat, and the output end is connected with the third transmission wheel. The motor is electrically connected with the button switch and the storage battery respectively.

[0019] As another embodiment of the present application, the transmission shaft is perpendicular to the axial direction of the screw, the first transmission wheel and the second transmission wheel are both helical gears, the third transmission wheel is a bevel gear, and the output end of the motor is also provided with a bevel gear matching the third transmission wheel.

[0020] As another embodiment of the present application, a display screen is embedded in the box base, a microprocessor electrically connected to the battery is provided inside the box base, the microprocessor is electrically connected to the display screen, an RFID (Radio Frequency Identification) identifier is electrically connected to the microprocessor, and the RFID identifier is used to identify the RFID tag mounted on the square fuse.

[0021] As another embodiment of the present application, an insulating plate is provided at the extending end of the sliding frame, a charged detection sensor is provided on the insulating plate, and the charged detection sensor is electrically connected to the microprocessor.

[0022] The beneficial effect of the square ceramic fuse removal device provided by the present invention is that, compared with the prior art, when removing the square ceramic fuse, the maintenance personnel hold the operating handle, align the gripper assembly with the square ceramic fuse to be removed, and then move it toward the direction of the mounting base. When the gripper assembly contacts the square ceramic fuse, the gripper assembly is compressed and retracted, so that the square ceramic fuse can pass through the middle of the gripper assembly. When the square ceramic fuse completely passes through the gripper assembly and the extended end of the sliding frame contacts the mounting base, the gripper assembly automatically unfolds, and at this time, the gripper assembly is opened by operating the button. The drive mechanism is energized to work, and the drive mechanism drives the gripper assembly to slide on the sliding frame in the direction away from the mounting base. When the unfolded gripper assembly collides with the side wall of the square ceramic fuse toward the mounting base, the gripper assembly continues to slide and drives the square ceramic fuse to move in the direction away from the mounting base until the square ceramic fuse is separated from the mounting base. During the whole process, the maintenance personnel only need to hold the operating handle without exerting force to pull, so as to avoid accidentally touching other circuits due to deformation of the movement. The safety is high. The force is applied through the drive mechanism during disassembly, and the stability is high, thereby being able to avoid damage to the mounting base due to violent disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a square ceramic fuse removal device provided in an embodiment of the present invention;

[0025] Figure 2 A partial cross-sectional structural schematic diagram of a square ceramic fuse removal device provided in an embodiment of the present invention;

[0026] Figure 3A schematic diagram of the transmission structure of a square ceramic fuse removal device provided in an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the connection structure between the slider and the card plate used in an embodiment of the present invention;

[0028] Figure 5 A block diagram of the electrical connection principles of a square ceramic fuse removal device provided in an embodiment of the present invention.

[0029] In the figure: 100, box seat; 101, operating handle; 102, push button switch; 103, display screen; 104, sliding frame; 1041, sliding arm; 1042, sliding rail; 1043, insulating plate; 105, battery; 106, microprocessor; 107, RFID identifier; 108, live detection sensor; 200, gripper assembly; 201, hand grip; 2010, slide groove; 2011, slider; 2012, card plate; 2013, pin shaft; 2014, elastic element; 300, driving mechanism; 301, screw; 3011, first transmission wheel; 302, transmission shaft; 3021, second transmission wheel; 3022, third transmission wheel; 303, motor. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] Please also read Figure 1 , Figure 2 and Figure 5 Now, the square ceramic fuse removal device provided by the present invention is described. The square ceramic fuse removal device comprises:

[0032] The box seat 100 has an operating handle 101 and a button switch 102 on the top surface, a battery 105 inside, and a sliding frame 104 extending perpendicularly to the bottom surface of the box seat 100 on the bottom surface. The extended end of the sliding frame 104 is used to abut against the mounting base;

[0033] The gripper assembly 200 is slidably connected to the sliding frame 104 along the extension direction of the sliding frame 104. The gripper assembly 200 has a passing state in which it is compressed and retracted when it contacts the square fuse, and also has a grasping state in which it automatically unfolds after crossing the square fuse and is clamped with the side wall of the square fuse toward its mounting base.

[0034] The driving mechanism 300 is disposed in the box seat 100 , connected to the gripper assembly 200 , and electrically connected to the battery 105 and the button switch 102 , respectively, for driving the gripper assembly 200 to reciprocate on the sliding frame 104 .

[0035] The square ceramic fuse removal device provided by the present invention is used as follows:

[0036] It should be noted that the driving mechanism 300 can drive the gripper assembly 200 to reciprocate on the sliding frame 104, and the function of the button switch 102 is to control the action of the driving mechanism 300. The button switch 102 should have two operating modes, such as two buttons or two gears, so as to control different actions of the driving mechanism 300 respectively, so as to realize the gripper assembly 200 sliding away from the box seat 100, or sliding towards the box seat 100. Before disassembling the square ceramic fuse, the position of the gripper assembly 200 should be adjusted first to make it in the extreme position away from the box seat 100, that is, the extended end of the sliding frame 104, to ensure that after the sliding frame 104 crosses the square ceramic fuse, the gripper assembly 200 can be separated from the side wall of the square ceramic fuse, thereby ensuring that the gripper assembly 200 can be automatically unfolded.

[0037] When disassembling the square ceramic fuse, the maintenance personnel hold the operating handle 101, align the gripper assembly 200 with the square ceramic fuse to be disassembled, and then move the entire square fuse disassembly device in a direction perpendicular to the installation surface of the square ceramic fuse. After the gripper assembly 200 contacts the square ceramic fuse, the square ceramic fuse moves away from the side wall of the installation base to squeeze the gripper assembly 200, so that the gripper assembly 200 retracts and continues to move toward the installation base. When the gripper assembly 200 completely slides over the side wall of the square ceramic fuse, the gripper assembly 200 is no longer subjected to the pressing force of the square ceramic fuse. At this time, the gripper assembly 200 automatically unfolds. Of course, the maintenance personnel need to continue to move the entire square fuse removal device toward the mounting base until the extended end of the sliding frame 104 conflicts with the mounting base, so that the mounting base can move toward the sliding frame 104, thereby providing support force for the gripper assembly 200 during removal.

[0038] After the extended end of the sliding frame 104 contacts the mounting base, the maintenance personnel presses the button switch 102 to turn on the driving mechanism 300, so that the driving mechanism 300 drives the gripper assembly 200 to move away from the mounting base. When the gripper assembly 200 moves to the side wall of the square ceramic fuse facing the mounting base, since the gripper assembly 200 is in an expanded state, it can contact the side wall of the square ceramic fuse facing the mounting base. That is to say, when the gripper assembly 200 moves in the direction away from the mounting base, the gripper assembly 200 can clamp the side wall of the square ceramic fuse facing the mounting base, thereby driving the square ceramic fuse to slide on the sliding frame 104 until the square ceramic fuse is disengaged from the mounting base, and then the square ceramic fuse can be removed.

[0039] Compared with the prior art, the square ceramic fuse removal device provided by the present invention is that when removing the square ceramic fuse, the maintenance personnel hold the operating handle 101, align the gripper assembly 200 with the square ceramic fuse to be removed, and then move it toward the direction of the mounting base. When the gripper assembly 200 contacts the square ceramic fuse, the gripper assembly 200 is compressed and retracted, so that the square ceramic fuse can pass through the middle of the gripper assembly 200. When the square ceramic fuse completely passes through the gripper assembly 200 and the extended end of the sliding frame 104 contacts the mounting base, the gripper assembly 200 is automatically unfolded. At this time, the driving mechanism 300 is turned on by operating the button switch 102. During electrical operation, the drive mechanism 300 drives the gripper assembly 200 to slide on the sliding frame 104 in a direction away from the mounting base. When the unfolded gripper assembly 200 collides with the side wall of the square ceramic fuse toward the mounting base, the gripper assembly 200 continues to slide and drives the square ceramic fuse to move in a direction away from the mounting base until the square ceramic fuse is separated from the mounting base. During the entire process, the maintenance personnel only need to hold the operating handle 101, and there is no need to pull with force, so as to avoid accidentally touching other circuits due to deformation of the movement. The safety is high. During disassembly, force is applied through the drive mechanism 300, and the stability is high, thereby being able to avoid damage to the mounting base due to violent disassembly.

[0040] As a specific implementation of the square ceramic fuse removal device provided by the present invention, please refer to Figures 1 to 3 The sliding frame 104 includes two sliding arms 1041 arranged at intervals; the gripper assembly 200 includes two hand grips 201 respectively connected to the two sliding arms 1041 in a sliding manner. The two hand grips 201 are arranged opposite to each other and are respectively connected to the driving mechanism 300. The two hand grips 201 can slide synchronously on the two sliding arms 1041 under the drive of the driving mechanism 300.

[0041] When disassembling the square ceramic fuse, the two sliding arms 1041 and the box base 100 together form a door-type structure, which can straddle the two sides of the square ceramic fuse, and grab the square ceramic fuse through the two relatively arranged hand grips 201. When the hand grips 201 collide with the square ceramic fuse, they retract, similar to the action of opening both arms. After the hand grips 201 slide over the side walls of the square ceramic fuse as a whole, they automatically unfold, similar to the action of locking with both arms, so as to hold the square ceramic fuse, drive the square ceramic fuse and the two hand grips 201 to slide together until the square ceramic fuse is separated from the mounting base. The square ceramic fuse is conveniently and reliably fixed during the disassembly process. Since the two hand grips 201 can move synchronously, the square ceramic fuse is stably stressed, ensuring a smooth and safe disassembly process to avoid accidentally touching other circuits to cause short circuits or damage the mounting base.

[0042] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 3 The hand grip 201 includes a slider 2011 and a card plate 2012; wherein the slider 2011 is slidably connected to the slide arm 1041 and is connected to the driving mechanism 300; the card plate 2012 is rotatably connected to the slider 2011 toward the side wall between the two slide arms 1041. When the grip assembly 200 is in a gripping state, the board surface of the card plate 2012 is perpendicular to the extension direction of the slide arm 1041. When the grip assembly 200 is in a passing state, the card plate 2012 is flipped toward the direction of the box seat 100 to allow the square fuse to pass between the two hand grips 201.

[0043] The connection between the slider 2011 and the sliding arm 1041 realizes the position movement of the hand grip 201, and the relative flipping action of the card plate 2012 and the slider 2011 realizes the retraction and expansion action of the hand grip 201, so that the card plate 2012 can slide through the side wall of the square ceramic fuse and then clamp the side wall of the square ceramic fuse facing the mounting base. It should be noted here that when the card plate 2012 is flipped to the point where its plate surface facing away from the mounting base is perpendicular to the extension direction of the sliding arm 1041, a vertical angle is formed between the plate surface of the card plate 2012 and the side wall of the slider 2011. At this time, the end surface of the card plate 2012 facing the side wall of the slider 2011 abuts against the side wall of the slider 2011, thereby preventing the card plate 2012 from flipping in the direction close to the mounting base, and by A rounded structure matching the flipping radius of the card plate 2012 is provided on the side wall of the block 2011, so that the card plate 2012 can flip in the direction away from the mounting base when subjected to force. Therefore, during disassembly, the card plate 2012 can be flipped under force to enlarge the opening between the two card plates 2012 (i.e., the hand grip 201 retracts), thereby accommodating the passage of the square ceramic fuse. After the square ceramic fuse completely passes through the card plate 2012, the card plate 2012 is no longer subjected to the squeezing force, so it can be flipped to a position perpendicular to the side wall of the slider 2011, thereby reducing the opening between the two card plates 2012 (i.e., the hand grip 201 is unfolded), and the square ceramic fuse can be clamped toward the side wall of the mounting base. The clamping process of the square ceramic fuse is simple, easy to operate, and the clamping is stable and reliable.

[0044] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 3 The two ends of the slider 2011 are respectively provided with T-shaped, cross-shaped or dovetail-shaped slide grooves 2010, the slide arm 1041 is frame-shaped, and the two inner frame walls of the slide arm 1041 are respectively provided with slide rails 1042 matching the slide groove 2010, and the slide rails 1042 are slidably connected with the slide groove 2010.

[0045] The slide arm 1041 of the frame-type structure has high strength and good stability. The slide grooves 2010 at both ends of the slide block 2011 cooperate with the slide rails 1042 on the two inner walls of the slide arm 1041 to ensure the sliding stability of the slide block 2011, thereby improving the clamping stability of the clamping plate 2012 on the square ceramic fuse, thereby ensuring a smooth disassembly process of the square ceramic fuse, avoiding shaking of the square ceramic fuse during the disassembly process, and avoiding damage to the mounting base during the disassembly process.

[0046] As a specific implementation of the embodiment of the present invention, please refer to Figure 3 to Figure 4The slider 2011 is provided with an axial hole, in which an elastic element 2014 is provided, and the card plate 2012 is provided with a pin shaft 2013, which is rotatably connected to the axial hole and connected to the elastic element 2014; when the card plate 2012 is converted from a stressed state to a non-stressed state, the card plate 2012 automatically flips to a state perpendicular to the extension direction of the sliding arm 1041 under the elastic torsion of the elastic element 2014.

[0047] The elastic torsion applied to the pin 2013 by the elastic element 2014 can ensure that the card plate 2012 can always maintain a perpendicular state with the side wall of the slider 2011 when it is in a non-stressed state, and can make the card plate 2012 change from a stressed state (pressed against the square ceramic fuse) to a non-stressed state (completely sliding over the side wall of the square ceramic fuse and thus separating from the square ceramic fuse). Then, the card plate 2012 can automatically rotate to a perpendicular state to the side wall of the slider 2011 under the action of the elastic torsion, so that it can abut against the side wall of the square ceramic fuse facing the mounting base, thereby avoiding the situation where the card plate 2012 cannot be flipped or the flipping angle is insufficient after the card plate 2012 completely slides over the square ceramic fuse, resulting in failure of the card plate 2012 to snap into the square ceramic fuse, thereby ensuring a smooth and stable disassembly process.

[0048] In this embodiment, the elastic element 2014 is a torsion spring, and holes are provided on the peripheral wall of the pin shaft 2013 and the inner wall of the shaft hole. The torsion spring is located in the shaft hole and is sleeved on the pin shaft 2013. One end of the torsion spring is plugged into the hole on the pin shaft 2013, and the other end is plugged into the hole on the inner wall of the shaft hole. Of course, after the torsion spring is installed, the torque on the pin shaft 2013 should be maintained.

[0049] As a specific implementation of the embodiment of the present invention, please refer to Figure 2 The board surface of the card plate 2012 facing away from the box seat 100 is a wedge-shaped surface.

[0050] The wedge-shaped surface has a guiding function. When the square ceramic fuse is disassembled, the plate surface of the card plate 2012 facing the mounting base, i.e., the wedge-shaped surface, first contacts the side wall of the square ceramic fuse away from the mounting base. Under the guiding function of the wedge-shaped surface, the pressure-receiving flipping action of the card plate 2012 is smoother. Moreover, compared with the flat-plate structure, the wedge-shaped surface can form an opening for accommodating the passage of the square ceramic fuse between the two card plates 2012 when the two card plates 2012 are flipped at a smaller angle. The smaller the flipping angle of the card plate 2012, the smaller the elastic torsion force on the card plate 2012. Therefore, the pressing force of the wedge-shaped surface on the side wall of the square ceramic fuse is smaller. Therefore, the sliding resistance between the card plate 2012 and the side wall of the square ceramic fuse is correspondingly smaller, which can facilitate the card plate 2012 to slide over the side wall of the square ceramic fuse, and the operation is convenient and labor-saving.

[0051] As a specific implementation of the embodiment of the present invention, please refer to Figures 2 to 3 The driving mechanism 300 includes two lead screws 301, a transmission shaft 302 and a motor 303; wherein the two lead screws 301 are rotatably arranged on the two sliding arms 1041 along the extension direction of the sliding arm 1041, one end of the lead screw 301 extends into the interior of the box seat 100 and is provided with a first transmission wheel 3011, and the lead screw 301 passes through the slider 2011 and is threadedly connected to the slider 2011; the two ends of the transmission shaft 302 are rotatably connected to the two inner side walls of the box seat 100, and the two ends are respectively provided with a second transmission wheel 3021 matched with the first transmission wheel 3011, and the transmission shaft 302 is also sleeved with a third transmission wheel 3022; the motor 303 is arranged in the box seat 100, and the output end is connected to the third transmission wheel 3022, and the motor 303 is electrically connected to the button switch 102 and the battery 105 respectively.

[0052] After the two hand grips 201 cooperate to clamp the side wall of the square ceramic fuse toward the mounting base, the operation button switch 102 is connected to the motor 303 and the battery 105, so that the motor 303 is powered and starts to run forward or reverse (the motor 303 is a forward and reverse bidirectional motor 303), and the output end of the motor 303 drives the third transmission wheel 3022 to rotate, thereby driving the transmission shaft 302 to rotate, and the second transmission wheels 3021 arranged at both ends of the transmission shaft 302 respectively drive the two lead screws 301 to rotate, so that the two sliders 2011 respectively matched with the two lead screws 301 slide synchronously on the two sliding arms 1041 in the direction close to the box seat 100, and the square ceramic fuse is driven by the two hand grips 201 and moves with the two sliders 2011 in the direction close to the box seat 100 until it is separated from the mounting base;

[0053] After the square ceramic fuse is disassembled and removed, the button switch 102 is operated (the button switch 102 has two gears) to enable the motor 303 to be energized and run in reverse or forward direction. The output end of the motor 303 drives the third transmission wheel 3022 to rotate in reverse, thereby driving the transmission shaft 302 to rotate in reverse. The second transmission wheels 3021 arranged at both ends of the transmission shaft 302 respectively drive the two lead screws 301 to rotate in reverse, thereby making the two sliders 2011 respectively matched with the two lead screws 301 slide synchronously on the two slide arms 1041 in the direction away from the box seat 100 until they reach the extended end of the slide arm 1041, so as to facilitate the disassembly operation of the next square ceramic fuse.

[0054] For details, please refer to Figures 2 to 3 The transmission shaft 302 is perpendicular to the axial direction of the lead screw 301 , the first transmission wheel 3011 and the second transmission wheel 3021 are both helical gears, the third transmission wheel 3022 is a bevel gear, and the output end of the motor 303 is also provided with a bevel gear matching the third transmission wheel 3022 .

[0055] The first transmission wheel 3011 and the second transmission wheel 3021 adopt a helical gear transmission method, which can realize variable-angle torque transmission, thereby realizing torque transmission between the axially vertical transmission shaft 302 and the screw 301, and the output end of the motor 303 and the third transmission wheel 3022 adopt a bevel gear transmission method, which can also realize variable-angle torque transmission, and the torque transmission is stable. Through the variable-direction torque transmission, the occupied space of the transmission structure can be reduced, and the weight and volume of the entire square ceramic fuse removal device can be reduced. The operation is convenient and labor-saving, and the physical requirements for maintenance personnel are low, so that the maintenance personnel can stably hold the operating handle 101, thereby avoiding the square ceramic fuse from shaking due to insufficient physical strength of the maintenance personnel during the removal process, thereby damaging the installation base or accidentally touching other circuits, improving the stability of the disassembly process, and reducing safety hazards during the disassembly process.

[0056] As a specific implementation of the embodiment of the present invention, please refer to Figure 1 , Figure 2 and Figure 5 A display screen 103 is embedded on the box base 100. A microprocessor 106 electrically connected to the battery 105 is provided inside the box base 100. The microprocessor 106 is electrically connected to the display screen 103. The microprocessor 106 is electrically connected to an RFID identifier 107, which is used to identify the RFID tag attached to the square fuse.

[0057] RFID technology is a communication technology, also known as electronic tag. It can identify specific targets and read and write related data through radio signals without the need to establish mechanical or optical contact between the identification system and the specific target. RFID tags are composed of coupling elements and chips. Each tag has a unique electronic code and is attached to an object to identify the target object.

[0058] The RFID identifier 107 used in this embodiment includes an information reader arranged inside the box base 100 and an electromagnetic antenna arranged at the extended end of the sliding frame 104. The electromagnetic antenna is used to transmit radio frequency signals between the RFID tag and the information reader, so that the information reader obtains the information of the square ceramic fuse represented by the RFID tag and transmits the information to the microprocessor 106. The microprocessor 106 displays the tag information on the display screen 103, so that maintenance personnel can easily confirm the information and ensure that the disassembled square ceramic fuse is accurate to avoid accidental disassembly.

[0059] As a specific implementation of the embodiment of the present invention, please refer to Figure 1 , Figure 2 and Figure 5An insulating plate 1043 is provided at the extended end of the sliding frame 104 , and a charge detection sensor 108 is provided on the insulating plate 1043 . The charge detection sensor 108 is electrically connected to the microprocessor 106 .

[0060] By arranging an insulating plate 1043 at the extended end of the sliding frame 104, it is prevented that when the square ceramic fuse and its mounting base are energized, the current is transmitted to the operating handle 101 through the sliding frame 104, thereby preventing maintenance personnel from getting an electric shock, thereby improving the safety factor of the square ceramic fuse removal process;

[0061] A charged detection sensor 108 is provided on the insulating plate 1043. Before the square ceramic fuse is disassembled, the charged detection sensor 108 is first placed close to the square ceramic fuse to be disassembled to detect whether it is charged, and the detected data is converted into intuitive current and voltage values ​​through the microprocessor 106 and displayed on the display screen 103, so that the maintenance personnel can obtain the charged status of the square ceramic fuse. It can be seen that the charged detection sensor 108, the corresponding data processing module in the microprocessor 106 and the display together constitute a high-voltage charged display (a safety device installed on electrical equipment to intuitively display whether the electrical equipment has a voltage, consisting of a sensor and a display, and using the electric field coupling principle between the electric field and the sensor to perform inductive or non-contact measurement of the charged status of the equipment at a safe distance), thereby realizing the detection of the charged status of the square ceramic fuse to be disassembled. The maintenance personnel can perform corresponding operations according to the charged status of the square ceramic fuse displayed on the display, avoiding electric shock accidents and improving operation safety.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A square ceramic fuse removal device, characterized in that: include: A box seat, the top surface of which is provided with an operating handle and a button switch, a storage battery is arranged inside, and the bottom surface is provided with a sliding frame extending perpendicularly to the bottom surface of the box seat, and the extended end of the sliding frame is used to abut against the mounting base; A gripper assembly is slidably connected to the sliding frame along the extension direction of the sliding frame, and the gripper assembly has a passing state in which it is compressed and retracted when it contacts the square fuse, and also has a grasping state in which it automatically unfolds after crossing the square fuse and is clamped with the side wall of the square fuse toward the mounting base; A driving mechanism is disposed in the box seat, connected to the gripper assembly, and electrically connected to the battery and the button switch, respectively, and is used to drive the gripper assembly to reciprocate on the sliding frame; The sliding frame includes two sliding arms arranged at intervals; the gripper assembly includes two hand grippers respectively connected to the two sliding arms in a sliding manner, the two hand grippers are arranged opposite to each other and respectively connected to the driving mechanism, and the two hand grippers can slide synchronously on the two sliding arms respectively under the drive of the driving mechanism; The hand grasping comprises: A slider, slidably connected to the slide arm and connected to the drive mechanism; A card plate is rotatably connected with the slider toward the side wall between the two slide arms. When the gripper assembly is in the grasping state, the board surface of the card plate is perpendicular to the extension direction of the slide arm. When the gripper assembly is in the passing state, the card plate flips toward the box seat to allow the square fuse to pass between the two grippers. Both ends of the slider are respectively provided with T-shaped, cross-shaped or dovetail-shaped sliding grooves, the sliding arm is frame-shaped, and the two inner frame walls of the sliding arm are respectively provided with sliding rails matching the sliding grooves, and the sliding rails are slidably connected with the sliding grooves; The board surface of the clamping plate facing away from the box seat is a wedge-shaped surface.

2. The square ceramic fuse removal device according to claim 1, characterized in that: The slider is provided with an axial hole, an elastic element is provided in the axial hole, a pin is passed through the card plate, the pin is rotatably connected to the axial hole and connected to the elastic element; when the card plate is converted from a stressed state to a non-stressed state, the card plate automatically flips to a state perpendicular to the extension direction of the sliding arm under the elastic torsion of the elastic element.

3. The square ceramic fuse removal device according to claim 1, characterized in that: The driving mechanism comprises: Two lead screws are rotatably arranged on the two slide arms respectively along the extension direction of the slide arms, one end of the lead screw extends into the interior of the box seat and is provided with a first transmission wheel, and the lead screw passes through the slide block and is threadedly connected to the slide block; A transmission shaft, both ends of which are rotatably connected to the two inner side walls of the box seat, and both ends are provided with second transmission wheels that cooperate with the first transmission wheel, and a third transmission wheel is also sleeved on the transmission shaft; The motor is arranged in the box seat, and the output end is connected to the third transmission wheel. The motor is electrically connected to the button switch and the battery respectively.

4. The square ceramic fuse removal device according to claim 3, characterized in that: The transmission shaft is perpendicular to the axial direction of the lead screw, the first transmission wheel and the second transmission wheel are both helical gears, the third transmission wheel is a bevel gear, and the output end of the motor is also sleeved with a bevel gear matching the third transmission wheel.

5. The square ceramic fuse removal device according to any one of claims 1 to 4, characterized in that: A display screen is embedded on the box base, a microprocessor electrically connected to the battery is arranged inside the box base, the microprocessor is electrically connected to the display screen, an RFID identifier is electrically connected to the microprocessor, and the RFID identifier is used to identify the RFID tag attached to the square fuse.

6. The square ceramic fuse removal device according to claim 5, characterized in that: An insulating plate is provided at the extending end of the sliding frame, and a charge detection sensor is provided on the insulating plate. The charge detection sensor is electrically connected to the microprocessor.

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