Fuse replacement device for a drop-out fuse

Abstract

The application relates to the technical field of electric power maintenance equipment, in particular to a falling-type fuse breaker fuse replacement device which comprises a holding unit and a clamping unit. The holding unit comprises a holding piece and a first insulating piece which are connected. The clamping unit is connected to the first insulating piece, so that the clamping unit and the holding piece are arranged in an insulated manner at intervals. The clamping unit comprises a jaw group which can clamp an article. The jaw group comprises a movable jaw and a fixed jaw which are arranged oppositely. The movable jaw is configured to be movable so as to adjust a clamping space between the movable jaw and the fixed jaw. The falling-type fuse breaker fuse replacement device can clamp and fix a fuse tube, facilitates replacement of the fuse, and improves work efficiency. Moreover, the holding piece and the clamping unit are separated by the first insulating piece, so that the safety risk can be reduced, and the personal safety of the staff can be ensured.

Description

Technical Field

[0001] This invention relates to the field of power maintenance equipment technology, and in particular to a drop-out fuse replacement device. Background Technology

[0002] Drop-out fuses are commonly installed on overhead transformers in power grids. In summer, due to heavy loads, the fuse wires of these fuses are prone to burnout, necessitating replacement. The fuse replacement process includes at least the following steps: removing the fuse tube from the drop-out fuse, replacing the fuse wire inside the tube, and reinstalling the fuse tube. Currently, workers use insulated operating rods to assist in this process. However, existing insulated operating rods cannot clamp and secure the fuse tube, making it inconvenient to apply force, disassemble, or install, resulting in low operational efficiency and high safety risks. Summary of the Invention

[0003] The purpose of this invention is to provide a fuse replacement device for drop-out fuses, which can facilitate fuse replacement, improve work efficiency, and reduce safety risks.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A device for replacing the fuse wire of a drop-out fuse is provided, comprising:

[0006] A holding unit, including a holding member and a first insulating member connected to each other;

[0007] A clamping unit is connected to the first insulating member to provide insulation between the clamping unit and the holding member. The clamping unit includes a jaw assembly capable of clamping an article. The jaw assembly includes a movable jaw and a fixed jaw disposed opposite to each other. The movable jaw is configured to move to adjust the clamping space between the movable jaw and the fixed jaw.

[0008] Optionally, the clamping unit further includes a drive unit, a conveyor belt, and a base. The base is connected to the conveyor belt, the drive unit is used to drive the conveyor belt to rotate, the fixed gripper is connected to the base, and the movable gripper is movably disposed on the base.

[0009] Optionally, the clamping unit further includes a housing, a first elastic element, and a first magnetic element and a second magnetic element that repel each other. The first magnetic element is disposed on the housing, and the second magnetic element is disposed on the movable gripper. The second magnetic element is located between the first magnetic element and the fixed gripper. The first elastic element is connected to both the movable gripper and the base. The first elastic element has a tendency to move the movable gripper away from the fixed gripper.

[0010] Optionally, the clamping unit further includes a rack, a gear, and a locking member. The rack is connected to the movable gripper, the gear shaft of the gear is connected to the base, and the locking member is connected to the base. The gear meshes with the rack, and the locking member is used to lock the gear so that the gear can only rotate in a first direction. When the movable gripper approaches the fixed gripper, the gear rotates in the first direction.

[0011] Optionally, the clamping unit further includes an unlocking member for abutting against the locking member to disengage the locking member from the gear. The unlocking member is connected to the housing and located at the end of the housing where the first magnetic member is not provided.

[0012] Optionally, the clamping unit further includes an airbag and an inflation assembly, the airbag being disposed on the surface of the movable gripper facing the fixed gripper, and / or the airbag being disposed on the surface of the fixed gripper facing the movable gripper, the inflation assembly being configured to inflate the airbag as the movable gripper approaches the fixed gripper.

[0013] Optionally, the inflation assembly includes an outer cylinder and an inner cylinder arranged coaxially. One end of the outer cylinder and the inner cylinder are connected to the fixed clamping claw along the axial direction, and the other end is connected to the movable clamping claw. One end of the inner cylinder blocks the opening on the outer cylinder, and the inner cylinder is telescopically inserted into the outer cylinder along the axial direction of the outer cylinder through the opening to adjust the volume of the inner cavity of the outer cylinder. The inner cavity of the inner cylinder communicates with the inner cavity of the outer cylinder. A first through hole is provided on the inner cylinder, and the inner cavity of the inner cylinder communicates with the inner cavity of the airbag through the first through hole.

[0014] And / or, the airbag includes a first airbag and a second airbag, the first airbag being disposed on the movable gripper and the second airbag being disposed on the fixed gripper. The inflation assembly also includes a retractable connecting tube, the first port of which is connected to the first airbag and the second port of which is connected to the second airbag. A first one-way valve is provided on the third port of the retractable connecting tube, and when the first one-way valve is opened, the gas in the retractable connecting tube can be output.

[0015] And / or, the inflation assembly further includes an air intake tube connected to the airbag, and the air intake tube is provided with a second one-way valve, which allows gas to be introduced into the air intake tube when the second one-way valve is opened.

[0016] Optionally, the drop-out fuse replacement device further includes a purging unit, which includes a purging pipe connected to the fixed gripper and / or the movable gripper. One end of the purging pipe is connected to a retractable connecting pipe so that the gas released from the airbag can be blown toward the item through the retractable connecting pipe and the purging pipe.

[0017] Optionally, the drop-out fuse replacement device further includes a voltage detection unit, which includes a voltage detection element and a second insulating element. One end of the second insulating element is connected to the clamping unit, and the other end is connected to the voltage detection element.

[0018] Optionally, the drop-out fuse replacement device further includes a support plate and a serrated blade. The support plate is connected to the second insulating component, the voltage testing end of the voltage testing component is connected to the support plate, and the serrated blade is detachably connected to the support plate.

[0019] The beneficial effects of this invention are:

[0020] This invention provides a drop-out fuse replacement device, including a holding unit and a clamping unit. The holding unit includes a holding member and a first insulating member connected to each other. The clamping unit is connected to the first insulating member, so that the clamping unit is insulated from the holding member. The clamping unit includes a jaw assembly capable of clamping an object. The jaw assembly includes a movable jaw and a fixed jaw arranged opposite each other. The movable jaw is configured to move to adjust the clamping space between the movable jaw and the fixed jaw. This drop-out fuse replacement device can clamp and fix the fuse tube, facilitating fuse replacement and improving work efficiency. Furthermore, the first insulating member separates the holding member and the clamping unit, reducing safety risks and ensuring the personal safety of workers. Attached Figure Description

[0021] Figure 1 This is a partial structural schematic diagram of the drop-out fuse replacement device provided in an embodiment of the present invention;

[0022] Figure 2 This is a partial cross-sectional view of a portion of the structure of the drop-out fuse replacement device provided in an embodiment of the present invention;

[0023] Figure 3 This is a partial structural schematic diagram of the clamping unit provided in an embodiment of the present invention;

[0024] Figure 4 This is a partial cross-sectional view of a portion of the structure of the clamping unit provided in an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of the outer cylinder, inner cylinder, and second elastic member provided in an embodiment of the present invention;

[0026] Figure 6 This is a partial structural schematic diagram of the clamping unit and the blowing unit provided in the embodiment of the present invention.

[0027] In the picture:

[0028] 1. Holding unit; 11. Holding component; 111. Handle; 12. First insulating component;

[0029] 2. Clamping unit; 201. Movable gripper; 202. Fixed gripper; 203. Drive unit; 204. Conveyor belt; 205. Base; 206. Housing; 207. Second elastic element; 208. Rack; 209. Gear; 210. Locking element; 211. Unlocking element; 212. First magnetic element; 213. Airbag; 214. Outer cylinder; 2141. Compressible space; 215. Inner cylinder; 216. Telescopic connecting pipe; 217. First one-way valve; 218. Suction pipe; 219. Second one-way valve; 220. Passive shaft;

[0030] 3. Purge unit; 31. Purge end; 32. Purge bracket; 33. Fixing magnetic component; 34. Connecting tee pipe;

[0031] 4. Voltage testing unit; 41. Voltage testing component; 411. Voltage testing terminal; 42. Second insulation component; 43. Display screen;

[0032] 5. Support plate; 6. Serrated blade. Detailed Implementation

[0033] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0034] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0035] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0036] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0037] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0038] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0039] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0040] like Figures 1-6As shown, the drop-out fuse replacement device of this embodiment includes a holding unit 1 and a clamping unit 2. The holding unit 1 includes a holding member 11 and a first insulating member 12 connected together. The clamping unit 2 is connected to the first insulating member 12, so that the clamping unit 2 is insulated from the holding member 11. The clamping unit 2 includes a jaw assembly capable of clamping objects. The jaw assembly includes a movable jaw 201 and a fixed jaw 202 disposed opposite to each other. The movable jaw 201 is configured to move to adjust the clamping space between the movable jaw 201 and the fixed jaw 202. This drop-out fuse replacement device can clamp and fix the fuse tube, facilitating fuse replacement and improving work efficiency. Furthermore, the first insulating member 12 separates the holding member 11 and the clamping unit 2, reducing safety risks and ensuring the personal safety of workers.

[0041] Optionally, the grip 11 has a body and a handle 111. One end of the body is connected to the first insulating member 12, and the handle 111 is disposed on the body. The operator can easily apply force to the device by gripping the handle 111.

[0042] Optionally, in this embodiment, the gripper 11, the first insulating member 12, and the clamping unit 2 are arranged in a straight line to ensure maximum insulation between the gripper 11 and the clamping unit 2.

[0043] Optionally, the clamping unit 2 includes a drive unit 203, a conveyor belt 204, and a base 205. The base 205 is connected to the conveyor belt 204, and the drive unit 203 drives the conveyor belt 204 to rotate. Optionally, the drive unit 203 is a motor. Optionally, the clamping unit 2 also includes a drive shaft and a driven shaft 220, which together support the conveyor belt 204. The output end of the motor is connected to the drive shaft to drive its rotation. Optionally, the base 205 has a guide protrusion, and the inner side of the housing 206 has a guide groove. The extending direction of the guide groove is parallel to the conveying direction of the conveyor belt 204, and the guide protrusion is inserted into the guide groove to guide the base 205 as the conveyor belt 204 moves.

[0044] Optionally, the fixed gripper 202 is connected to the base 205, and the movable gripper 201 is movably mounted on the base 205. Optionally, the side of the base 205 is provided with a sliding groove, the extension direction of which is parallel to the line connecting the movable gripper 201 and the fixed gripper 202. The bottom side of the movable gripper 201 has a sliding protrusion that can be slidably inserted into the sliding groove, thereby guiding the movement of the movable gripper 201 and ensuring that the movable gripper 201 moves toward or away from the fixed gripper 202.

[0045] Optionally, in this embodiment, two sets of base 205, movable gripper 201, and fixed gripper 202 are provided, which can clamp two items. One set is located on the first side of the conveyor belt 204, and the other set is located on the second side of the conveyor belt 204. When the conveyor belt 204 is in motion, the two sets of base 205 move in opposite directions.

[0046] The following section will introduce the other components of clamping unit 2, as well as other units. Some of these components are closely related to the gripper groups. These components are provided in two sets, each corresponding to one of the two gripper groups. The following description will use one set as an example.

[0047] Optionally, the clamping unit 2 further includes a housing 206, a first elastic element (not shown in the figure), and a first magnetic element 212 and a second magnetic element that repel each other. The first magnetic element 212 is disposed on the housing 206, and the motor and conveyor belt 204 are also disposed inside the housing 206. The gripper assembly extends out of the housing 206 through a through hole in the housing 206. In order to enable the movable gripper 201 to automatically approach the fixed gripper 202, the second magnetic element (not shown in the figure) is disposed on the movable gripper 201. The second magnetic element is located between the first magnetic element 212 and the fixed gripper 202. Along the conveying direction of the conveyor belt 204, the first magnetic element 212 is disposed at one end of the housing 206. That is, when the conveyor belt 204 drives the base 205 and the gripper assembly to approach this end of the housing 206, the first magnetic element 212 has the tendency to push the second magnetic element and the movable gripper 201 to move closer to the fixed gripper 202, thereby shortening the distance between the two grippers.

[0048] Optionally, the first elastic element is connected to both the movable gripper 201 and the base 205. The first elastic element has a tendency to move the movable gripper 201 away from the fixed gripper 202, thereby driving the movable gripper 201 to return to its original position. Optionally, the first elastic element is a spring or an elastic sheet.

[0049] Optionally, the clamping unit 2 further includes a rack 208, a gear 209, and a locking member 210. The rack 208 is connected to the movable gripper 201, the gear shaft of the gear 209 is connected to the base 205, and the locking member 210 is connected to the base 205. The gear 209 and the rack 208 are meshed together. The locking member 210 is used to lock the gear 209 so that the gear 209 can only rotate in a first direction. When the movable gripper 201 approaches the fixed gripper 202, the gear 209 rotates in the first direction. That is, as the movable gripper 201 moves closer to the fixed gripper 202, the rack 208 moves with the movable gripper 201, and the rack 208 drives the gear 209 to rotate. The locking member 210 will lock the gear 209 at any time to prevent the gear 209 from reversing, thus preventing the movable gripper 201 from moving away from the fixed gripper 202.

[0050] Optionally, the clamping unit 2 further includes an unlocking member 211, which abuts against the locking member 210 to disengage the locking member 210 from the gear 209. The unlocking member 211 is connected to the housing 206 and is located at the end of the housing 206 where the first magnetic member 212 is not provided. In this embodiment, the unlocking member 211 is a pin, located at the other end of the housing 206 along the conveying direction of the conveyor belt 204, that is, along the moving direction of the base 205 and the gripper assembly. The first magnetic member 212 and the unlocking member 211 are respectively provided at both ends.

[0051] When the motor drives the conveyor belt 204 to rotate, the conveyor belt 204 moves the base 205 and the gripper assembly toward the first magnetic component 212. The magnetic repulsion between the first magnetic component 212 and the second magnetic component pushes the movable gripper 201 closer to the fixed gripper 202. At the same time, the movable gripper 201 drives the rack 208 to move, and the rack 208 drives the gear 209 to rotate. The gear 209 is constantly locked by the locking component 210. When the distance between the movable gripper 201 and the fixed gripper 202 is appropriate, the motor stops driving. The locking component 210 locks the gear 209, and the gear 209 meshes with the rack 208, ensuring that the position of the movable gripper 201 relative to the fixed gripper 202 remains unchanged, thus forming a reliable clamping mode that ensures that the item is always clamped.

[0052] When the operator needs to release the item after completing the operation, the operator only needs to reverse the motor, and the conveyor belt 204 will drive the base 205 to move to the unlocking part 211. The unlocking part 211 will then abut against the locking part 210, causing it to disengage from the gear 209. At this time, the movable gripper 201 will move away from the fixed gripper 202 under the action of the first elastic element, and the item can be released.

[0053] To prevent damage to items by the grippers during gripping, the gripping unit 2 may optionally include an airbag 213 and an inflation assembly. The airbag 213 may be disposed on the surface of the movable gripper 201 facing the fixed gripper 202, or on the surface of the fixed gripper 202 facing the movable gripper 201, or on both the surface of the movable gripper 201 facing the fixed gripper 202 and the surface of the fixed gripper 202 facing the movable gripper 201. The inflation assembly is configured to inflate the airbag 213 as the movable gripper 201 approaches the fixed gripper 202, thus achieving flexible gripping of the item.

[0054] Optionally, the inflation assembly includes an outer cylinder 214 and an inner cylinder 215 coaxially arranged, with the axial direction of the outer cylinder 214 and the inner cylinder 215 parallel to the line connecting the two grippers. One end of the outer cylinder 214 and the inner cylinder 215 along the axial direction is connected to a fixed gripper 202, and the other end is connected to a movable gripper 201. One end of the inner cylinder 215 blocks the opening on the outer cylinder 214, and the inner cylinder 215 is telescopically inserted into the outer cylinder 214 along the axial direction of the outer cylinder 214 through the opening, so as to adjust the volume of the inner cavity of the outer cylinder 214, thereby adjusting the overall volume of the inner cavities of the outer cylinder 214 and the inner cylinder 215, i.e., the volume of the compressible space 2141 in the figure. The inner cavity of the inner cylinder 215 communicates with the inner cavity of the outer cylinder 214, and a first through hole is provided on the inner cylinder 215, through which the inner cavity of the inner cylinder 215 communicates with the inner cavity of the airbag 213. When the movable gripper 201 approaches the fixed gripper 202, it compresses the inner cylinder 215 and the outer cylinder 214, causing the inner cylinder 215 to move relative to the outer cylinder 214 in the direction of extending into the outer cylinder 214. As a result, the compressible space 2141 becomes smaller, and the gas in the compressible space 2141 is forced into the airbag 213, causing the airbag 213 to expand and achieve flexible clamping of the item by the airbag 213.

[0055] Optionally, a second elastic element 207 is sleeved on the outer side of the outer cylinder 214 and the inner cylinder 215. The second elastic element 207 is a spring. The two ends of the second elastic element 207 are respectively connected to the two ends of the overall length direction of the outer cylinder 214 and the inner cylinder 215. The second elastic element 207 has a tendency to stretch the outer cylinder 214 and the inner cylinder 215 as a whole, so as to further ensure that after the work is completed, the movable gripper 201 can quickly move away from the fixed gripper 202 to release the clamped item.

[0056] Optionally, the airbag 213 includes a first airbag and a second airbag, with the first airbag mounted on the movable gripper 201 and the second airbag mounted on the fixed gripper 202. The inflation assembly also includes a retractable connecting tube 216, with a first port connected to the first airbag and a second port connected to the second airbag. Optionally, the retractable connecting tube 216 is a corrugated tube with adjustable length, and the length of the corrugated tube adjusts accordingly when the distance between the two grippers changes.

[0057] Optionally, the first through hole of the inner cylinder 215 is directly connected to the inner cavity of the movable gripper 201, which in turn is connected to the first airbag. One end of the telescopic connecting tube 216 is connected to the movable gripper 201, and the other end is connected to the fixed gripper 202. Both ends of the telescopic connecting tube 216 are connected to the inner cavities of the two grippers, respectively. When the movable gripper 201 approaches the fixed gripper 202, the inner cylinder 215 moves relative to the outer cylinder 214 in the direction of extending into the outer cylinder 214. The compressible space 2141 becomes smaller, and the gas in the compressible space 2141 is partially forced into the first airbag through the inner cavity of the movable gripper 201, and partially forced into the second airbag through the telescopic connecting tube 216 and the inner cavity of the fixed gripper 202. Both airbags 213 expand, thus achieving double-sided flexible clamping of the item.

[0058] Optionally, the retractable connecting pipe 216 also has a third port, meaning the retractable connecting pipe 216 is a tee pipe. A first one-way valve 217 is installed on the third port of the retractable connecting pipe 216. When the first one-way valve 217 is open, the gas inside the retractable connecting pipe 216 can be output. That is, when it is necessary to release the item, the first one-way valve 217 can be opened to quickly release the gas in the first and second airbags, thus quickly releasing the item. Optionally, the inflation assembly also includes an air intake pipe 218, which is connected to the airbag 213. A second one-way valve 219 is installed on the air intake pipe 218, which can input gas when the second one-way valve 219 is open. Optionally, in this embodiment, the air intake pipe 218 is connected to the movable gripper 201, and the air intake pipe 218 is connected to the inner cavity of the movable gripper 201.

[0059] When the locking element 210 is released and the movable gripper 201 quickly moves away from the fixed gripper 202, the inner cylinder 215 and the outer cylinder 214 will be extended, and the volume of the compressible space 2141 will increase. At this time, the second one-way valve 219 will automatically open, and gas will enter the compressible space 2141 through the suction pipe 218 and the inner cavity of the movable gripper 201, in preparation for the next clamping of an item.

[0060] To blow away debris from the surface of the item, the drop-out fuse replacement device may optionally include a blowing unit 3. The blowing unit 3 includes a blowing pipe connected to the fixed gripper 202 or the movable gripper 201, or the blowing pipe may be provided on both the fixed gripper 202 and the movable gripper 201.

[0061] Optionally, the purge tube is fixed to the gripper via a purge bracket 32, and the purge bracket 32 ​​is detachably connected to the gripper via a fixing magnetic 33. In this embodiment, both the fixed gripper 202 and the movable gripper 201 may be provided with purge brackets 32, which are located on the side of the gripper, and both purge brackets 32 are provided with purge tubes. The cross-section of the purge bracket 32 ​​is C-shaped, and the purge tube is located in the inner cavity of the purge bracket 32 ​​to prevent the purge tube from being squeezed. Optionally, the purge bracket 32 ​​has a fixing hole, and the purge end 31 of the purge tube extends toward the object through the fixing hole. The fixing hole can lock the purge end 31 and position it to ensure that the purge direction of the airflow is fixed. Optionally, in other embodiments, multiple fixing holes may be provided on the purge bracket 32, and the purge tube may have multiple branch ends to purge different positions of the object.

[0062] Optionally, one end of the purge pipe is connected to the retractable connecting pipe 216, so that the gas released from the airbag 213 can be blown toward the object through the retractable connecting pipe 216 and the purge pipe. Optionally, the retractable connecting pipe 216 has a third branch pipe, and a second one-way valve 219 is disposed on the third branch pipe. The third branch pipe is connected to one port of the connecting tee pipe 34, and the other two ports of the connecting tee pipe 34 are respectively connected to the two purge pipes.

[0063] To facilitate voltage testing operations, the drop-out fuse replacement device may optionally include a voltage testing unit 4. The voltage testing unit 4 includes a voltage testing element 41 and a second insulating element 42. One end of the second insulating element 42 is connected to the clamping unit 2, and the other end is connected to the voltage testing element 41. Optionally, the voltage testing element 41 has two voltage testing tips 411 extending in two perpendicular directions to facilitate voltage testing operations.

[0064] Optionally, the drop-out fuse replacement device further includes a support plate 5, which is connected to the second insulating member 42. The voltage testing end 411 of the voltage testing member 41 is connected to the support plate 5 to facilitate fixing to the voltage testing end 411.

[0065] Optionally, the voltage testing element 41 is located in the groove of the second insulating element 42, the cable of the voltage testing element 41 is located in the support rod, and the support rod extends to the voltage testing end 411 through the through hole in the second insulating element 42.

[0066] Optionally, a display screen 43 is provided on the main body of the holding unit 1. The display screen 43 is communicatively connected to the voltage testing component 41, and staff can view voltage testing data on the display screen 43.

[0067] Optionally, the drop-out fuse replacement device also includes a serrated blade 6, which is detachably connected to the support plate 5. That is, the serrated blade 6 can be installed on the support plate 5 when cutting is required. Optionally, the serrated blade 6 is connected to the support plate 5 by bolts.

[0068] It is known that there is a first insulating element 12 between the holding unit 1 and the clamping unit 2, and a first insulating element 12 and a second insulating element 42 between the holding unit 1 and the saw teeth and the voltage detection unit 4. The double insulation protection can further improve the safety of operation.

[0069] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A fuse replacement device for a drop-out fuse, characterized in that, include: The holding unit (1) includes a holding member (11) and a first insulating member (12) connected to each other. A clamping unit (2) is connected to the first insulating member (12) so that the clamping unit (2) is spaced and insulated from the holding member (11). The clamping unit (2) includes a jaw assembly capable of clamping an article. The jaw assembly includes a movable jaw (201) and a fixed jaw (202) disposed opposite to each other. The movable jaw (201) is configured to be movable to adjust the clamping space between the movable jaw (201) and the fixed jaw (202). The clamping unit (2) further includes an airbag (213) and an inflation assembly configured to inflate the airbag (213) as the movable gripper (201) approaches the fixed gripper (202); The airbag (213) is disposed on the surface of the movable gripper (201) facing the fixed gripper (202), and / or, the airbag (213) is disposed on the surface of the fixed gripper (202) facing the movable gripper (201); The inflation assembly includes an outer cylinder (214) and an inner cylinder (215) arranged coaxially. One end of the outer cylinder (214) and the inner cylinder (215) are connected to the fixed clamp (202) along the axial direction, and the other end is connected to the movable clamp (201). One end of the inner cylinder (215) blocks the opening on the outer cylinder (214), and the inner cylinder (215) is telescopically inserted into the outer cylinder (214) along the axial direction of the outer cylinder (214) through the opening to adjust the volume of the inner cavity of the outer cylinder (214). The inner cavity of the inner cylinder (215) is connected to the inner cavity of the outer cylinder (214). A first through hole is provided on the inner cylinder (215), and the inner cavity of the inner cylinder (215) is connected to the inner cavity of the airbag (213) through the first through hole.

2. The drop-out fuse replacement device according to claim 1, characterized in that, The clamping unit (2) further includes a drive unit (203), a conveyor belt (204) and a base (205). The base (205) is connected to the conveyor belt (204). The drive unit (203) is used to drive the conveyor belt (204) to rotate. The fixed gripper (202) is connected to the base (205). The movable gripper (201) is movably disposed on the base (205).

3. The drop-out fuse replacement device according to claim 2, characterized in that, The clamping unit (2) further includes a housing (206), a first elastic element, and a first magnetic element (212) and a second magnetic element that are relatively repelled. The first magnetic element (212) is disposed on the housing (206), and the second magnetic element is disposed on the movable gripper (201). The second magnetic element is located between the first magnetic element (212) and the fixed gripper (202). The first elastic element is connected to both the movable gripper (201) and the base (205). The first elastic element has a tendency to move the movable gripper (201) away from the fixed gripper (202).

4. The drop-out fuse replacement device according to claim 3, characterized in that, The clamping unit (2) further includes a rack (208), a gear (209), and a locking member (210). The rack (208) is connected to the movable gripper (201). The gear shaft of the gear (209) is connected to the base (205). The locking member (210) is connected to the base (205). The gear (209) meshes with the rack (208). The locking member (210) is used to lock the gear (209) so that the gear (209) can only rotate in the first direction. When the movable gripper (201) approaches the fixed gripper (202), the gear (209) rotates in the first direction.

5. The drop-out fuse replacement device according to claim 4, characterized in that, The clamping unit (2) further includes an unlocking member (211), which is used to abut against the locking member (210) so that the locking member (210) disengages from the gear (209). The unlocking member (211) is connected to the housing (206) and is located at the end of the housing (206) where the first magnetic member (212) is not provided.

6. The drop-out fuse replacement device according to claim 1, characterized in that, The airbag (213) includes a first airbag and a second airbag. The first airbag is disposed on the movable gripper (201), and the second airbag is disposed on the fixed gripper (202). The inflation assembly also includes a retractable connecting tube (216). The first port of the retractable connecting tube (216) is connected to the first airbag, and the second port of the retractable connecting tube (216) is connected to the second airbag. A first one-way valve (217) is disposed on the pipe at the third port of the retractable connecting tube (216). When the first one-way valve (217) is opened, the gas in the retractable connecting tube (216) can be output. And / or, the inflation assembly further includes an air intake tube (218) connected to the airbag (213), and a second one-way valve (219) is provided on the air intake tube (218), which can input gas when the second one-way valve (219) is opened.

7. The drop-out fuse replacement device according to claim 1, characterized in that, The drop-out fuse replacement device further includes a purge unit (3), which includes a purge pipe connected to the fixed gripper (202) and / or the movable gripper (201). One end of the purge pipe is connected to a retractable connecting pipe (216) so that the gas released by the airbag (213) can be blown toward the item through the retractable connecting pipe (216) and the purge pipe.

8. The drop-out fuse replacement device according to any one of claims 1-5, characterized in that, The drop-out fuse replacement device also includes a voltage testing unit (4), which includes a voltage testing component (41) and a second insulating component (42). One end of the second insulating component (42) is connected to the clamping unit (2), and the other end is connected to the voltage testing component (41).

9. The drop-out fuse replacement device according to claim 8, characterized in that, The drop-out fuse replacement device also includes a support plate (5) and a serrated blade (6). The support plate (5) is connected to the second insulating component (42), the voltage testing end (411) of the voltage testing component (41) is connected to the support plate (5), and the serrated blade (6) is detachably connected to the support plate (5).

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