Fuse cartridge and its jaw assembly

Abstract

The application relates to the field of electrical equipment accessories, in particular to a fuse tube and a clamp jaw assembly thereof. The clamp jaw assembly comprises a connecting portion boss, a jaw mounting disc matched with the connecting portion boss and a jaw body, the lower end surface of the connecting portion boss is formed with four radial connecting portion track grooves, the jaw body is movable along the length direction of the connecting portion track grooves, the jaw mounting disc comprises a mounting disc base and a mounting disc extension part for rotationally connecting the mounting disc base and the connecting portion boss, the end surface of the mounting disc base is formed with a vortex-shaped mounting disc guide groove, the jaw body comprises a jaw mounting section and a jaw connecting section, the side of the jaw mounting section towards the jaw connecting section is formed with a guide plug for being clamped into the mounting disc guide groove to match and adjust the position of the jaw body. When it is required to adjust the size of the adapting end of the fuse tube, external force is applied to drive the jaw mounting disc to rotate relative to the connecting portion boss to adjust the position of the jaw body.

Description

Technical Field

[0001] This application relates to the field of electrical equipment accessories, and in particular to a fuse tube and its gripper assembly. Background Technology

[0002] Fuse cylinders, as a crucial overcurrent protection component, are widely used in high and low voltage power distribution systems, control equipment, and various electrical appliances. When an abnormal overload or short-circuit current occurs in a circuit, the fuse element melts upon heating, quickly cutting off the faulty circuit and protecting downstream equipment and lines from overcurrent damage, preventing the accident from escalating. Compared to traditional open-type fuses, fuse cylinders offer better electrical performance, environmental adaptability, and operational safety.

[0003] Existing fuse tubes widely adopt a quincunx claw structure, with multiple clearance grooves on the side wall of the conductive cap, forming an overall quincunx shape. The dimensions of the fuse tubes inside different fuse tube models vary. Due to the serialized differences in the diameter of the fuse tube ends, the existing claw parts are completely customized according to the model, with different models corresponding to completely different claw structures. Summary of the Invention

[0004] To accommodate different types of fuse tubes, this application provides a fuse tube and its clamping assembly.

[0005] In a first aspect, the gripper assembly provided in this application adopts the following technical solution: A gripper assembly includes a connecting boss, a gripper mounting plate that mates with the connecting boss, and a gripper body. The lower end face of the connecting boss is formed with four radial connecting track grooves. The gripper body moves along the length direction of the connecting track grooves. The gripper mounting plate includes a mounting plate base and a mounting plate extension that rotatably connects the mounting plate base and the connecting boss. The end face of the mounting plate base is formed with a vortex-shaped mounting plate guide groove. The gripper body includes a gripper mounting section and a gripper connecting section. The side of the gripper mounting section facing the gripper connecting section is formed with a guide insert for engaging with the mounting plate guide groove to adjust the position of the gripper body.

[0006] By adopting the above technical solution, when it is necessary to adjust and adapt to fusible tubes with different end sizes, an external force is applied to drive the jaw mounting plate to rotate relative to the connecting boss. After the jaw body moves to the appropriate position, the position of the jaw body is fixed again. Therefore, the spacing between the jaw bodies can be adjusted to suit the position of the fusible tube model as needed. Thus, this jaw assembly can adapt to different models of fusible tubes, enhancing compatibility.

[0007] Preferably, the connecting grooves all extend from the outermost part of the connecting boss towards the center of the connecting boss, and terminate at a position a certain distance from the center of the connecting boss.

[0008] By adopting the above technical solution, the connecting part track groove extends from the outermost part of the connecting part boss to a position that does not reach the center of the connecting part boss, so that the claw body cannot move to the center of the connecting part boss when it is adjusted in the connecting part track groove, thus preventing the claw body from detaching from the mounting plate guide groove during the adjustment process, making the adjustment process more convenient.

[0009] Preferably, the width of the connecting groove is equal to the width of the claw body, and the depth of the connecting groove is equal to the thickness of the claw body.

[0010] By adopting the above technical solution, the width and depth of the connecting part track groove are equal to the width and thickness of the claw body, so that when the claw body is engaged with the connecting part track groove, the claw body can only move along the length direction of the connecting part track groove without deflection.

[0011] Preferably, a plurality of mounting plate embedding grooves are evenly distributed on the outer side wall of the mounting plate extension, and a mounting plate threaded hole is formed on the bottom surface of each mounting plate embedding groove. A connecting part annular groove is formed on the outer side wall of the connecting part boss, and a plurality of connecting part grooves corresponding to the mounting plate embedding grooves are formed on the bottom surface of the connecting part annular groove.

[0012] By employing the above technical solution, when adjustment is required, the hex socket head cap screw is loosened, causing the screw thread to disengage from the groove of the connecting part and reach a position where it only mates with the annular groove of the connecting part. At this point, the chuck mounting plate can be adjusted to rotate relative to the boss of the connecting part. During the rotation of the boss of the connecting part, because the position of the chuck body is limited by the track groove of the connecting part, the guide plate moves with the vortex-shaped guide groove of the mounting plate, causing the chuck body to move along the length direction of the track groove of the connecting part. When the chuck body has moved to the appropriate position, the hex socket head cap screw is retightened, causing the screw thread to insert into the groove of the connecting part. At this point, the chuck mounting plate can no longer rotate, and the position of the chuck body is fixed.

[0013] Preferably, when viewed in cross-section, the side of the two side walls of the mounting plate guide groove facing the center of the connecting boss is perpendicular to the upper surface of the mounting plate base, and the side away from the center of the connecting boss is inclined from top to bottom towards the center of the connecting boss. The thickness of the guide insert is equal to the width of the narrowest part of the mounting plate guide groove cross-section, and the height of the guide insert is less than the depth of the mounting plate guide groove. The guide insert is arc-shaped, and the radius of the arc formed by the position where the guide insert connects with the claw mounting section is equal to the maximum radius of the mounting plate guide groove. The radius of the arc formed by the end of the guide insert away from the claw mounting section is equal to the minimum radius of the mounting plate guide groove.

[0014] By adopting the above technical solution, when the guide insert is inserted into the guide groove of the mounting plate, since the arc radius at the connection between the guide insert and the claw mounting section is equal to the maximum radius of the mounting plate guide groove, when the position where the guide insert mates with the mounting plate guide groove is not at the maximum radius of the mounting plate guide groove, the inner sidewall of the mounting plate guide groove abuts and presses against the end of the guide insert near the claw mounting section, causing the lower end of the guide insert to tilt and deform towards the center of the connecting boss. At this time, since the arc radius of the end of the guide insert away from the claw mounting section is smaller than the radius of the mounting plate guide groove at that position, the end of the guide insert away from the claw mounting section will abut against the sidewall of the mounting plate guide groove and deform and open. At this time, the lower end of the guide insert abuts against the sidewall of the mounting plate guide groove near the center of the claw mounting plate in a deformed and open state and has elastic potential energy, so that the claw body is fixed at this position and will not move due to the fit gap between the claw body and the mounting plate guide groove.

[0015] Preferably, the claw connecting section is formed with a claw pressing part that is inclined toward the center of the connecting boss in the direction away from the claw mounting section, and a guide limiting section located at one end of the claw connecting section away from the claw mounting section that is inclined toward the center of the connecting boss in the direction away from the claw mounting section. A ring spring is sleeved on the claw pressing part of the multiple claw bodies to apply a force to the claw body in the direction of the center of the claw mounting plate.

[0016] By adopting the above technical solution, a ring spring applies a force towards the center to multiple jaw bodies. Since the lower end of the guide plate is deformed and abuts against the side wall of the mounting plate guide groove near the center of the jaw mounting plate, the direction of the force exerted by the ring spring towards the center of the jaw mounting plate is the same as the direction of the deformed opening of the guide plate. After installation, the force applied by the ring spring to the jaw bodies ensures that the jaw bodies firmly clamp the end of the fusible tube, resulting in a more stable electrical connection.

[0017] Preferably, a locking protrusion is formed on the outer side wall of the connecting part boss near the lower end, and a locking ring groove that mates with the locking protrusion is formed on the inner side wall of the mounting plate extension.

[0018] By adopting the above technical solution, the locking protrusion and the locking ring groove are used to make the connecting lug and the claw mounting plate rotate and connect.

[0019] Preferably, the inner wall of the mounting plate extension is formed with a locking channel that extends upward from the locking ring groove as a locking protrusion entering the locking ring groove.

[0020] By adopting the above technical solution, the connection between the two is achieved through a locked channel. Preferably, the outer diameter of the mounting plate extension is equal to the outer diameter of the connecting base, and the height of the mounting plate extension is lower than the height of the connecting boss. A damping ring is provided between the upper end face of the mounting plate extension and the connecting base.

[0021] By adopting the above technical solution, the damping ring is in a state of compression deformation, and the frictional resistance prevents the claw mounting plate from rotating relative to the connecting boss when it is not subjected to other external forces.

[0022] Secondly, the fuse tube provided in this application adopts the following technical solution: By adopting the above technical solution, A fuse tube includes a tube body, a lead-out terminal located inside the tube body, and the aforementioned gripper assembly connected to the lead-out terminal.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. When it is necessary to adjust the fit of fusible tubes with different end sizes, an external force is applied to rotate the jaw mounting plate relative to the connecting boss. After the jaw body moves to the appropriate position, the position of the jaw body is fixed again. Therefore, the spacing between the jaw bodies can be adjusted to suit the fusible tube model as needed. Thus, this jaw assembly can adapt to different models of fusible tubes, enhancing compatibility.

[0024] 2. The connecting part track groove extends from the outermost part of the connecting part boss to a position that does not reach the center of the connecting part boss, so that the claw body cannot move to the center of the connecting part boss when it is moving and adjusting in the connecting part track groove. This prevents the claw body from dislodging from the mounting plate guide groove during the adjustment process, making the adjustment process more convenient.

[0025] 3. When the guide insert is inserted into the mounting plate guide groove, since the radius of the arc at the connection between the guide insert and the claw mounting section is equal to the maximum radius of the mounting plate guide groove, when the position where the guide insert mates with the mounting plate guide groove is not at the maximum radius of the mounting plate guide groove, the inner sidewall of the mounting plate guide groove abuts and presses against the end of the guide insert near the claw mounting section, causing the lower end of the guide insert to tilt and deform towards the center of the connecting boss. At this time, since the radius of the arc at the end of the guide insert away from the claw mounting section is smaller than the radius of the mounting plate guide groove at that position, the end of the guide insert away from the claw mounting section will abut against the sidewall of the mounting plate guide groove and deform. At this time, the lower end of the guide insert, in a deformed and expanded state, abuts against the sidewall of the mounting plate guide groove near the center of the claw mounting plate and has elastic potential energy, so that the claw body is fixed at this position and will not move due to the fit gap between the claw body and the mounting plate guide groove. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of Embodiment 1; Figure 2 This is a cross-sectional schematic diagram of Embodiment 1; Figure 3 This is a schematic diagram of the structure after the cylinder is hidden in Embodiment 1; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the chuck body and the mounting plate guide groove in Embodiment 1; Figure 6 This is a schematic diagram of the claw body of Embodiment 1; Figure 7 This is a schematic diagram of the output terminal and claw assembly in Embodiment 2; Figure 8 yes Figure 7 Enlarged view of point B in the middle.

[0027] Explanation of reference numerals in the attached drawings: 1. Cylinder body; 2. Outgoing terminal; 3. Claw assembly; 4. External connecting part; 5. Internal connecting part; 6. Connecting part base; 7. Connecting part boss; 8. Claw mounting plate; 9. Claw body; 10. Connecting part track groove; 11. Mounting plate base; 12. Mounting plate extension; 13. Mounting plate embedding groove; 14. Mounting plate threaded hole; 15. Connecting part annular groove; 16. Connecting part recess; 17. Socket headstock bolt; 18. Claw mounting section; 19. Claw connecting section; 20. Guide insert; 21. Claw pressure-bearing part; 22. Guide limiting section; 23. Annular spring; 24. Locking protrusion; 25. Locking ring groove; 26. Locking channel; 27. Damping ring; 28. Mounting plate guide groove. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0029] This application discloses a fuse tube. The terms "upper", "lower", "left" and "right" used in the embodiments are schematic representations of relative directions and are not limitations on the positional relationship.

[0030] Example 1: like Figure 1 and Figure 2 As shown, the fuse tube includes a tube body 1, a lead-out terminal 2 located inside the tube body 1, and a claw assembly 3 connected to the lead-out terminal 2.

[0031] like Figure 3 As shown, the outgoing terminal 2 includes an outer connecting part 4 and an inner connecting part 5. The inner connecting part 5 includes a connecting part base 6 and a connecting part boss 7 located below the connecting part base 6. The diameter of the connecting part boss 7 is smaller than the diameter of the connecting part base 6.

[0032] like Figure 3 and Figure 4 As shown, the claw assembly 3 includes a connecting boss 7, a claw mounting plate 8, and a claw body 9 that mate with the connecting boss 7. The lower end face of the connecting boss 7 is formed with four radial connecting track grooves 10. Each connecting track groove 10 extends from the outermost side of the connecting boss 7 towards the center of the connecting boss 7 and terminates at a distance from the center of the connecting boss 7. The width of the connecting track groove 10 is equal to the width of the claw body 9, and the depth of the connecting track groove 10 is equal to the thickness of the claw body 9, allowing each claw body 9 to move along the length of the connecting track groove 10.

[0033] like Figures 3 to 5 As shown, the chuck mounting plate 8 includes a mounting plate base 11 and a mounting plate extension 12 extending circumferentially from the mounting plate base 11 toward the connecting base 6. The outer diameter of the mounting plate extension 12 is equal to the outer diameter of the connecting base 6, and the height of the mounting plate extension 12 is equal to the height of the connecting boss 7. Multiple mounting plate insertion slots 13 are evenly distributed on the outer wall of the mounting plate extension 12, and each mounting plate insertion slot 13 has a mounting plate threaded hole 14 formed on its bottom surface. A connecting annular groove 15 is formed on the outer wall of the connecting boss 7, and multiple connecting grooves 16 corresponding to the mounting plate insertion slots 13 are formed on the bottom surface of the connecting annular groove 15. After the hexagon socket head cap screw 17 is threaded into the mounting plate threaded hole 14, the screw portion can be inserted into or disengaged from the connecting groove 16 by rotation. When the screw disengages from the connecting groove 16 and only engages with the connecting annular groove 15, the chuck mounting plate 8 can rotate relative to the inner connecting part 5. The upper surface of the mounting plate base 11 is formed with a vortex-shaped mounting plate guide groove 28. When viewed in cross-section, the side of the mounting plate guide groove 28 facing the center of the connecting part boss 7 is perpendicular to the upper surface of the mounting plate base 11, while the side away from the center of the connecting part boss 7 is inclined from top to bottom towards the center of the connecting part boss 7.

[0034] like Figure 3 and Figure 6As shown, the claw body 9 includes a claw mounting section 18 and a claw connecting section 19. A guide insert 20 is formed on the side of the claw mounting section 18 facing the claw connecting section 19 for engaging with the mounting plate guide groove 28 to adjust the position of the claw body 9. The thickness of the guide insert 20 is equal to the width of the narrowest part of the mounting plate guide groove 28, and the height of the guide insert 20 is slightly less than the depth of the mounting plate guide groove 28. The guide insert 20 is arc-shaped, and the radius of the arc formed by the connection between the guide insert 20 and the claw mounting section 18 is equal to the maximum radius of the mounting plate guide groove 28. The radius of the arc formed by the end of the guide insert 20 away from the claw mounting section 18 is equal to the minimum radius of the mounting plate guide groove 28. The claw connecting section 19 is formed with a claw pressing part 21 that is inclined toward the center of the connecting boss 7 in a direction away from the claw mounting section 18, and a guide limiting section 22 located at one end of the claw connecting section 19 away from the claw mounting section 18 and inclined toward the center of the connecting boss 7 in a direction away from the claw mounting section 18. A ring spring 23 is sleeved on the claw body 9 at the position of the claw pressing part 21 to apply a force to the claw body 9 toward the center of the claw mounting plate 8.

[0035] Specific usage process: When adjusting for different end sizes of the ferrules, loosen the hex bolt 17 so that its thread disengages from the groove 16 of the connecting part and mates only with the annular groove 15 of the connecting part. At this point, the pawl mounting plate 8 can rotate relative to the boss 7 of the connecting part. During the rotation of the boss 7, the position of the pawl body 9 is limited by the track groove 10 of the connecting part. Therefore, the guide plate 20 moves with the vortex-shaped guide groove 28 of the mounting plate, causing the pawl body 9 to move along the length of the track groove 10 of the connecting part. After the pawl body 9 has moved to the appropriate position, retighten the hex bolt 17 so that its thread inserts into the groove 16 of the connecting part. At this point, the pawl mounting plate 8 can no longer rotate, and the position of the pawl body 9 is fixed. Finally, replace the pawl with a suitable annular spring 23.

[0036] Example 2: The only difference between this embodiment and Embodiment 1 is the claw component 3.

[0037] like Figure 7 and Figure 8As shown, the claw assembly 3 of this embodiment includes a connecting boss 7, a claw mounting plate 8, and a claw body 9 that mate with the connecting boss 7. The lower end face of the connecting boss 7 is formed with four radial connecting track grooves 10. Each connecting track groove 10 extends from the outermost side of the connecting boss 7 towards the center of the connecting boss 7 and terminates at a distance from the center of the connecting boss 7. The width of the connecting track groove 10 is equal to the width of the claw body 9, and the depth of the connecting track groove 10 is equal to the thickness of the claw body 9, allowing each claw body 9 to move along the length of the connecting track groove 10.

[0038] like Figure 7 and Figure 8 As shown, the chuck mounting plate 8 includes a mounting plate base 11 and a mounting plate extension 12 extending circumferentially from the mounting plate base 11 toward the connecting base 6. The outer diameter of the mounting plate extension 12 is equal to the outer diameter of the connecting base 6, and the height of the mounting plate extension 12 is lower than the height of the connecting boss 7. A locking protrusion 24 is formed on the outer side wall of the connecting boss 7 near its lower end. A locking ring groove 25 that mates with the locking protrusion 24 and a locking channel 26 extending upward from the locking ring groove 25 as the path for the locking protrusion 24 to enter the locking ring groove 25 are formed on the inner side wall of the mounting plate extension 12. A damping ring 27 is provided between the upper end face of the mounting plate extension 12 and the connecting base 6. The damping ring 27 is in a state of compression deformation, and the frictional resistance prevents the chuck mounting plate 8 from rotating relative to the connecting boss 7 when it is not subjected to other external forces. The upper surface of the mounting plate base 11 is formed with a vortex-shaped mounting plate guide groove 28. When viewed in cross-section, the side of the mounting plate guide groove 28 facing the center of the connecting part boss 7 is perpendicular to the upper surface of the mounting plate base 11, while the side away from the center of the connecting part boss 7 is inclined from top to bottom towards the center of the connecting part boss 7.

[0039] like Figure 7 and Figure 8As shown, the claw body 9 includes a claw mounting section 18 and a claw connecting section 19. A guide insert 20 is formed on the side of the claw mounting section 18 facing the claw connecting section 19 for engaging with the mounting plate guide groove 28 to adjust the position of the claw body 9. The thickness of the guide insert 20 is equal to the width of the narrowest part of the mounting plate guide groove 28, and the height of the guide insert 20 is less than the depth of the mounting plate guide groove 28. The guide insert 20 is arc-shaped, and the radius of the arc formed by the connection between the guide insert 20 and the claw mounting section 18 is equal to the maximum radius of the mounting plate guide groove 28. The radius of the arc formed by the end of the guide insert 20 away from the claw mounting section 18 is equal to the minimum radius of the mounting plate guide groove 28. The claw connecting section 19 is formed with a claw pressing part 21 that is inclined toward the center of the connecting boss 7 in a direction away from the claw mounting section 18, and a guide limiting section 22 located at one end of the claw connecting section 19 away from the claw mounting section 18 and inclined toward the center of the connecting boss 7 in a direction away from the claw mounting section 18. A ring spring 23 is sleeved on the claw body 9 at the position of the claw pressing part 21 to apply a force to the claw body 9 toward the center of the claw mounting plate 8.

[0040] Specific usage process: When it is necessary to adjust the fitting of fusible tubes with different end sizes, an external force is applied to drive the jaw mounting plate 8 to rotate relative to the connecting boss 7. After the jaw body 9 moves to the appropriate position, the position of the jaw body 9 is fixed, and a ring spring 23 of the appropriate size is replaced.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gripper assembly, comprising a connecting boss (7), a gripper mounting plate (8) cooperating with the connecting boss (7), and a gripper body (9), characterized in that, The lower end face of the connecting boss (7) is formed with four radial connecting track grooves (10). The claw body (9) moves along the length direction of the connecting track grooves (10). The claw mounting plate (8) includes a mounting plate base (11) and a mounting plate extension (12) that rotatably connects the mounting plate base (11) and the connecting boss (7). The end face of the mounting plate base (11) is formed with a vortex-shaped mounting plate guide groove (28). The claw body (9) includes a claw mounting section (18) and a claw connecting section (19). The side of the claw mounting section (18) facing the claw connecting section (19) is formed with a guide insert (20) for inserting into the mounting plate guide groove (28) to adjust the position of the claw body (9).

2. The gripper assembly according to claim 1, characterized in that, The connecting grooves (10) all extend from the outermost side of the connecting boss (7) toward the center of the connecting boss (7) and terminate at a position a distance away from the center of the connecting boss (7).

3. The gripper assembly according to claim 1, characterized in that, The width of the connecting groove (10) is equal to the width of the claw body (9), and the depth of the connecting groove (10) is equal to the thickness of the claw body (9).

4. The gripper assembly according to claim 1, characterized in that, Multiple mounting plate embedding grooves (13) are evenly distributed on the outer side wall of the mounting plate extension (12). Each mounting plate embedding groove (13) has a mounting plate threaded hole (14) formed on its bottom surface. A connecting part annular groove (15) is formed on the outer side wall of the connecting part boss (7). Multiple connecting part grooves (16) corresponding to the mounting plate embedding grooves (13) are formed on the bottom surface of the connecting part annular groove (15).

5. The gripper assembly according to any one of claims 1-4, characterized in that, The mounting plate guide groove (28) is perpendicular to the upper surface of the mounting plate base (11) on one side of its two side walls facing the center of the connecting boss (7) when viewed from the cross section. The side away from the center of the connecting boss (7) is inclined from top to bottom towards the center of the connecting boss (7). The thickness of the guide piece (20) is equal to the width of the narrowest part of the cross section of the mounting plate guide groove (28), and the height of the guide piece (20) is less than the depth of the mounting plate guide groove (28). The guide piece (20) is arc-shaped, and the radius of the arc formed at the connection point of the guide piece (20) and the claw mounting section (18) is equal to the maximum radius of the mounting plate guide groove (28). The radius of the arc formed at the end of the guide piece (20) away from the claw mounting section (18) is equal to the minimum radius of the mounting plate guide groove (28).

6. The gripper assembly according to claim 5, characterized in that, The claw connecting section (19) is formed with a claw pressing part (21) that is inclined toward the center of the connecting boss (7) in the direction away from the claw mounting section (18), and a guide limiting section (22) located at one end of the claw connecting section (19) away from the claw mounting section (18) that is inclined toward the center of the connecting boss (7) in the direction away from the claw mounting section (18). A ring spring (23) is sleeved at the position of the claw pressing part (21) on the multiple claw bodies (9) to apply a force to the claw body (9) in the direction of the center of the claw mounting plate (8).

7. The gripper assembly according to claim 1, characterized in that, A locking protrusion (24) is formed on the outer side wall of the connecting part boss (7) near the lower end, and a locking ring groove (25) that mates with the locking protrusion (24) is formed on the inner side wall of the mounting plate extension (12).

8. The gripper assembly according to claim 7, characterized in that, The inner wall of the mounting plate extension (12) is formed with a locking channel (26) that extends upward from the locking ring groove (25) as a path for the locking protrusion (24) to enter the locking ring groove (25).

9. The gripper assembly according to claim 8, characterized in that, The outer diameter of the mounting plate extension (12) is equal to the outer diameter of the connecting base (6), and the height of the mounting plate extension (12) is lower than the height of the connecting boss (7). A damping ring (27) is provided between the upper end face of the mounting plate extension (12) and the connecting base (6).

10. A fuse tube, characterized in that, It includes a cylindrical body (1), a terminal (2) located inside the cylindrical body (1), and a gripper assembly according to any one of claims 1-9 connected to the terminal (2).

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