fuse cartridge

Abstract

The application relates to the field of electrical equipment accessories, in particular to a fuse tube. The fuse tube comprises a barrel, a wire outlet terminal arranged in the barrel and used for connecting the inside and outside of the barrel, and a claw assembly connected to the wire outlet terminal, wherein the claw assembly comprises a plurality of claw bodies and a ring-shaped claw mounting disc used for connecting the claw bodies and the wire outlet terminal, a plurality of adjusting track grooves are uniformly formed on a circumferential circle of the side of the claw mounting disc facing the wire outlet terminal, each adjusting track groove extends from the middle of the ring-shaped side of the claw mounting disc to the center of the claw mounting disc, and a plurality of connecting clamping grooves are uniformly formed on the bottom of the adjusting track groove along the length direction of the adjusting track groove, one end of the claw body is arranged in the adjusting track groove, and a connecting clamping block which can be clamped in the connecting clamping groove is formed on the side of the claw body facing the connecting clamping groove. The claw body is arranged in the adjusting track groove, the position of the claw body is adjusted and fixed through the cooperation of the connecting clamping block and the connecting clamping groove, and the fuse tube with different sizes of end portions can be adapted.

Description

Technical Field

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

[0002] The fuse tube is a core component in power systems for the installation, fixing, insulation, and protection of fuses (fuse tubes).

[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. Different models of fuse tubes contain fuse tubes of varying sizes. Due to the serialized differences in the diameter of the fuse tube ends, existing claw parts are completely customized according to the model, with different models corresponding to completely different claw structures. Furthermore, the closing force of the same model of claw weakens after long-term use, leading to unstable electrical connections. Summary of the Invention

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

[0005] This application provides a fuse tube, which adopts the following technical solution: A fuse tube includes a tube body, outlet terminals located inside the tube body for connecting the inner and outer sides of the tube body, and a claw assembly connected to the outlet terminals. The claw assembly includes multiple claw bodies and an annular claw mounting plate for connecting the claw bodies and the outlet terminals. The claw mounting plate has multiple adjusting track grooves evenly distributed around its circumference on the side facing the outlet terminals. Each adjusting track groove extends from the middle of the annular side of the claw mounting plate towards the center of the claw mounting plate. Multiple connecting slots are evenly distributed along the length of the adjusting track groove at its bottom. One end of the claw body is located inside the adjusting track groove, and a connecting block that engages with the connecting slot is formed on the side of the claw body facing the connecting slot.

[0006] By adopting the above technical solution, the claw body is set in the adjusting track groove, and the position of the claw body is adjusted and fixed by the cooperation of the connecting block and the connecting slot. When it is necessary to adapt to the fuse tube with a smaller end, the claw body is adjusted along the adjusting track groove towards the center of the claw mounting plate, and then the claw mounting plate and the output terminal are fixed, thus realizing the adaptation of one claw assembly and output terminal assembly to different fuse tubes.

[0007] Preferably, the cross-section of the connecting slot is trapezoidal, and the sidewalls of each connecting slot facing the center of the claw mounting plate and away from the center of the claw mounting plate are inclined towards the center of the claw mounting plate away from the outgoing terminal, and the inclination angle of the sidewall of the connecting slot away from the center of the claw mounting plate is greater than the inclination angle of the sidewall of the connecting slot facing the center of the claw mounting plate.

[0008] Preferably, the connecting block is trapezoidal, and both sides of the connecting block are inclined in the same direction away from the claw body, and the inclination angles on both sides are the same as the inclination angles of the two sides of the connecting slot.

[0009] Preferably, the claw body includes a claw mounting section and a claw connecting section, and the connecting block is formed on the side of the claw mounting section facing the claw connecting section.

[0010] By adopting the above technical solution, the connecting slot is set to a trapezoidal shape with both side walls inclined away from the outgoing terminal and towards the center of the claw mounting plate. This allows the claw body to be initially fixed to the claw mounting plate through the mating structure of the connecting block and the connecting slot, even before the claw mounting plate and the outgoing terminal are connected and fixed. This facilitates the adjustment of the position of the claw mounting plate and the fixing of the claw mounting plate and the outgoing terminal. Simultaneously, when the claw mounting plate and the outgoing terminal are connected and fixed, the connecting block of the claw body is pushed into the connecting slot, ensuring a tight fit between the connecting block and the connecting slot when the terminals are in contact, thus fixing the mating position.

[0011] Preferably, the claw connecting section is formed with a claw pressing part that is inclined toward the center of the claw mounting plate 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 claw mounting plate in the direction away from the claw mounting section. A ring spring is sleeved on the claw body at the position of the claw pressing part to apply a force to the claw body toward the center of the claw mounting plate.

[0012] By adopting the above technical solution, and by setting a ring spring to apply a force towards the center to multiple jaw bodies, during the installation of the jaw bodies and jaw mounting plate, the force applied by the ring spring drives the jaw bodies to move towards the center. At this time, since the jaw bodies and jaw mounting plate have been initially fixed by the connecting block and connecting groove structure, and the force of the ring spring drives the connecting block to move in the direction of pressing into the connecting groove, the connection structure between the jaw bodies and jaw mounting plate can be kept stable. After installation, the force applied by the ring spring to the jaw bodies allows the jaw bodies to firmly clamp the end of the fusible tube, resulting in a more stable electrical connection.

[0013] Preferably, the outlet terminal is located on the lower side of one end of the cylinder with multiple limiting blocks formed thereon. The bottom surface of each limiting block is an arc surface and gradually slopes downward from the center of the claw mounting plate outwards. The upper side of the claw mounting plate is formed with limiting grooves corresponding to the position of each limiting block. The adjusting track groove is located on the bottom surface of the limiting groove. The claw body includes a claw mounting section and a claw connecting section. The claw mounting section is an arc shape with the same diameter as the bottom surface of the limiting groove. The connecting block is formed on the side of the claw mounting section facing the bottom surface of the limiting groove.

[0014] By adopting the above technical solution, the bottom arc surface design of the limiting block cooperates with the limiting groove on the claw mounting plate, allowing the claw body and the claw mounting plate to be installed and fixed together. Simultaneously, the claw body is placed within the adjusting track groove, and its position is adjusted and fixed by the cooperation of the connecting block and the connecting slot.

[0015] Preferably, the cross-section of the connecting slot is trapezoidal, and the side wall of each connecting slot facing the center of the claw mounting plate points towards the center of the adjusting track groove. The side wall of each connecting slot away from the center of the claw piece is inclined away from the outgoing terminal and towards the center of the claw mounting plate. The connecting block is trapezoidal, and the shape of the connecting block matches the shape of the connecting slot.

[0016] By adopting the above technical solution, the cross-section of the connecting slot is set to be trapezoidal so that when the connecting block is inserted into the connecting slot, the trapezoidal connecting block and the connecting slot are squeezed together, and the connection between the two will become tighter. Therefore, when the claw body and the claw mounting plate are initially installed, the claw body and the claw mounting plate can be fixed by the snap-fit ​​and squeezing structure of the connecting block and the connecting slot, which facilitates subsequent installation.

[0017] Preferably, the claw connecting section is formed with a claw pressure portion that is inclined toward the center of the claw mounting plate in a direction away from the claw mounting section, and annular springs are sleeved on the claw pressure portions of the multiple claw bodies to apply a force to the claw body toward the center of the claw mounting plate.

[0018] By adopting the above technical solution, a ring spring applies a force towards the center to multiple jaw bodies. Since the jaw mounting section is arc-shaped and fits snugly within the adjusting track groove, and the connecting block and connecting groove are initially fixed in place, when the ring spring applies a force towards the center of the jaw mounting plate, the jaw body does not directly detach from the jaw mounting plate. Instead, under the force of the ring spring, the connecting block moves inward towards the connecting groove, making the connection between the jaw body and the jaw mounting plate increasingly stable. After installation, the force applied by the ring spring to the jaw body ensures that the jaw body firmly clamps the end of the fusible tube, resulting in a more stable electrical connection.

[0019] Preferably, the end of the claw connecting section away from the claw mounting section is configured as a guide limiting section that is inclined away from the center of the claw mounting plate in the direction away from the claw mounting section.

[0020] By adopting the above technical solution, the guide limiting section can limit the ring spring, preventing the ring spring from detaching from the chuck body, and at the same time can guide the end of the molten tube to be inserted between the chuck body.

[0021] Preferably, the claw mounting plate is connected to the outgoing terminal by bolts.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The claw body is placed in the adjusting track groove, and its position is adjusted and fixed by the cooperation of the connecting block and the connecting slot. When it is necessary to adapt to fusible tubes with different end sizes, the claw body is adjusted along the adjusting track groove towards the center of the claw mounting plate, and then the claw mounting plate and the output terminal are fixed, thus realizing the adaptation of one set of claw assembly and output terminal assembly to different fusible tubes.

[0023] 2. A ring spring applies a force towards the center to multiple jaw bodies. Because the jaw mounting section is arc-shaped and fits snugly within the adjusting track groove, and the connecting block and connecting slot are initially fixed in place, when the ring spring applies a force towards the center of the jaw mounting plate, the jaw body does not directly detach from the mounting plate. Instead, the force of the ring spring causes the connecting block to move inwards towards the connecting slot, making the connection between the jaw body and the mounting plate increasingly stable. After installation, the force applied by the ring spring to the jaw body ensures that the jaw body firmly clamps the end of the fusible tube, resulting in a more stable electrical connection.

[0024] 3. The connecting slot is trapezoidal in shape, with both side walls inclined away from the outgoing terminal and towards the center of the claw mounting plate. This allows the claw body to be initially fixed to the claw mounting plate via the engaging structure of the connecting block and the connecting slot, even before the claw mounting plate and the outgoing terminal are connected and fixed. This facilitates adjustment of the claw mounting plate's position and fixation of the claw mounting plate and outgoing terminal. Simultaneously, when the claw mounting plate and outgoing terminal are connected and fixed, the connecting block of the claw body is pressed into the connecting slot, ensuring a tight fit between the connecting block and the connecting slot when the terminals are in contact, thus fixing the mating position. Attached Figure Description

[0025] 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 output terminal and claw assembly in Embodiment 2; Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0026] Explanation of reference numerals in the attached drawings: 1. Cylinder body; 2. Outgoing terminal; 3. Claw assembly; 4. Claw body; 5. Adjusting track groove; 6. Connecting slot; 7. Claw mounting section; 8. Claw connecting section; 9. Claw pressure-bearing part; 10. Guide limiting section; 11. Ring spring; 12. Limiting block; 13. Limiting groove; 14. Claw mounting plate; 15. Connecting block. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0028] 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.

[0029] 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 for connecting the inner and outer sides of the tube body 1, and a claw assembly 3 connected to the lead-out terminal 2.

[0030] like Figure 3 and Figure 4 As shown, the claw assembly 3 includes multiple claw bodies 4 and an annular claw mounting plate 14 for connecting the claw bodies 4 and the output terminal 2. The claw mounting plate 14 is connected to the output terminal 2 by bolts or other fasteners. Multiple adjusting track grooves 5 are evenly distributed around the circumference of the claw mounting plate 14 facing the output terminal 2. Each adjusting track groove 5 extends from the middle of the annular side of the claw mounting plate 14 towards the center of the claw mounting plate 14. Multiple connecting slots 6 are evenly distributed along the length of the adjusting track groove 5 at its bottom. The connecting slot 6 has a trapezoidal cross-section. The sidewalls of each connecting slot 6 facing the center of the claw mounting plate 14 and away from the center of the claw mounting plate 14 are inclined towards the center of the claw mounting plate 14, away from the output terminal 2. The inclination angle of the sidewall of the connecting slot 6 away from the center of the claw mounting plate 14 is greater than the inclination angle of the sidewall of the connecting slot 6 facing the center of the claw mounting plate 14. The connecting block 15 is trapezoidal, and both sides of the connecting block 15 are inclined in the same direction away from the claw body 4, and the inclination angles on both sides are the same as the inclination angles of the two sides of the connecting slot 6.

[0031] like Figure 4As shown, the claw body 4 includes a claw mounting section 7 and a claw connecting section 8. A connecting block 15 is formed on the side of the claw mounting section 7 facing the claw connecting section 8 and is used to engage with the connecting slot 6 to connect the claw body 4 and the claw mounting plate 14. The claw connecting section 8 has a claw pressing part 9 that is inclined away from the claw mounting section 7 and towards the center of the claw mounting plate 14, and a guide limiting section 10 located at the end of the claw connecting section 8 away from the claw mounting section 7 and inclined away from the center of the claw mounting plate 14. Annular springs 11 are sleeved on the claw bodies 4 at the positions of the claw pressing parts 9 to apply a force to the claw body 4 towards the center of the claw mounting plate 14.

[0032] Specific usage process: During installation, the claw body 4 is placed inside the adjusting track groove 5, and the connecting block 15 of the claw body 4 and the connecting slot 6 of the adjusting track groove 5 are connected. Since the connecting slot 6 is trapezoidal in shape and its two side walls are inclined away from the output terminal 2 and towards the center of the claw mounting plate 14, the claw body 4 can be initially fixed to the claw mounting plate 14 through the cooperation structure of the connecting block 15 and the connecting slot 6 even before the claw mounting plate 14 and the output terminal 2 are connected and fixed. This facilitates the adjustment of the position of the claw mounting plate 14 and the fixing of the claw mounting plate 14 and the output terminal 2. At this point, the annular spring 11 is fitted onto the jaw pressing portion 9 of the multiple jaw bodies 4. The force applied by the annular spring 11 drives the jaw bodies 4 to move towards the center. Since the jaw bodies 4 and jaw mounting disc 14 have been initially fixed by the structure of the connecting block 15 and the connecting groove 6, and the force of the annular spring 11 drives the connecting block 15 to move in the direction of pressing into the connecting groove 6, the connection structure between the jaw bodies 4 and the jaw mounting disc 14 can be kept stable. After installation, the force applied by the annular spring 11 to the jaw bodies 4 enables the jaw bodies 4 to firmly clamp the end of the fusible tube, making the electrical connection more stable.

[0033] When it is necessary to adapt to the fusion tube with different end sizes, remove the ring spring 11 and loosen the fastener so that the claw body 4 can move along the direction of the adjustment track groove 5. After adjusting the claw body 4 to the appropriate position, tighten the fastener again to fix the position of the claw body 4, and put the ring spring 11 of the appropriate size back on.

[0034] When the chuck body 4 becomes loose due to long-term use, causing unstable electrical connection, directly loosen the fasteners to make the chuck body 4 move along the direction of the adjustment track groove 5. After adjusting the chuck body 4 to the appropriate position, tighten the fasteners again to fix the position of the chuck body 4. Then, determine whether to replace the ring spring 11 based on whether the ring spring 11 can apply sufficient force to the chuck body 4.

[0035] Example 2: like Figure 5 and Figure 6 As shown, the fuse tube includes a tube body 1, a lead-out terminal 2 located inside the tube body 1 for connecting the inner and outer sides of the tube body 1, and a claw assembly 3 connected to the lead-out terminal 2. Multiple limiting blocks 12 are formed on the lower side of one end of the lead-out terminal 2 inside the tube body 1. The bottom surface of each limiting block 12 is an arc surface and gradually slopes downwards from the center of the claw mounting plate 14 towards the surrounding area.

[0036] like Figure 5 and Figure 6 As shown, the claw assembly 3 includes multiple claw bodies 4 and an annular claw mounting plate 14 for connecting the claw bodies 4 and the output terminal 2. The claw mounting plate 14 is connected to the output terminal 2 by bolts or other fasteners. A limiting groove 13 is formed on the upper side of the claw mounting plate 14 corresponding to the position of each limiting block 12. Multiple adjusting track grooves 5 are formed on the bottom surface of the limiting grooves 13. The adjusting track grooves 5 are arc-shaped, and each adjusting track groove 5 gradually slopes downwards from the center of the claw mounting plate 14 towards the surrounding area of ​​the bottom surface of the limiting block 12. Multiple connecting slots 6 are evenly distributed along the length of the adjusting track grooves 5 at the bottom. The cross-section of each connecting slot 6 is trapezoidal. The sidewall of each connecting slot 6 facing the center of the claw mounting plate 14 points towards the center of the adjusting track groove 5. The sidewall of each connecting slot 6 away from the center of the claw body slopes away from the output terminal 2 and towards the center of the claw mounting plate 14.

[0037] like Figure 5 and Figure 6 As shown, the claw body 4 includes a claw mounting section 7 and a claw connecting section 8. The claw mounting section 7 is an arc shape with the same diameter as the bottom surface of the limiting groove 13. When the claw mounting section 7 is installed in the adjusting track groove 5, it is inclined towards the center of the claw mounting plate 14, away from the output terminal 2. A connecting block 15 is formed on the side of the claw mounting section 7 facing the claw connecting section 8. The connecting block 15 is used to engage with the connecting groove 6 to connect the claw body 4 and the claw mounting plate 14. The claw connecting section 8 has a claw pressure-bearing part 9 that is inclined towards the center of the claw mounting plate 14, away from the claw mounting section 7, and a guide limiting section 10 located at the end of the claw connecting section 8 away from the claw mounting section 7 that is inclined towards the center of the claw mounting plate 14, away from the claw mounting section 7. Annular springs 11 are sleeved on the claw bodies 4 at the positions of the claw pressure-bearing parts 9 to apply a force to the claw body 4 towards the center of the claw mounting plate 14.

[0038] Specific usage process: During installation, the claw body 4 is placed inside the adjusting track groove 5, and the connecting block 15 of the claw body 4 and the connecting slot 6 of the adjusting track groove 5 are connected. Since the connecting slot 6 is trapezoidal in shape and its two side walls are inclined away from the output terminal 2 and towards the center of the claw mounting plate 14, the claw body 4 can be initially fixed to the claw mounting plate 14 through the cooperation structure of the connecting block 15 and the connecting slot 6 even before the claw mounting plate 14 and the output terminal 2 are connected and fixed. This facilitates the adjustment of the position of the claw mounting plate 14 and the fixing of the claw mounting plate 14 and the output terminal 2. At this time, the annular spring 11 is fitted onto the jaw pressure portion 9 of the multiple jaw bodies 4. Since the adjusting track groove 5 is an arc shape that gradually slopes downward from the bottom surface of the limiting block 12 in the direction of the jaw mounting plate 14, and the jaw mounting section 7 of the jaw body 4 is also inclined away from the output terminal 2 and towards the center of the jaw mounting plate 14, the force exerted by the annular spring 11 on the jaw body 4 causes the jaw body 4 to fit tightly into the adjusting track groove 5. Furthermore, since the side wall of the connecting slot 6 facing the center of the jaw mounting plate 14 points towards the center of the adjusting track groove 5, and the side wall of each connecting slot 6 away from the center of the jaw piece is inclined away from the output terminal 2 and towards the center of the jaw mounting plate 14, the force exerted by the annular spring 11 on the jaw body 4 will also cause the connecting block 15 to move towards the connecting slot 6 for fastening, which can maintain the stability of the connection structure between the jaw body 4 and the jaw mounting plate 14. Once installed, the force exerted by the ring spring 11 on the chuck body 4 allows the chuck body 4 to firmly clamp the end of the fusible tube, resulting in a more stable electrical connection. Furthermore, the arc-shaped adjustment track groove 5 can be used to achieve more precise adjustments with a smaller range.

[0039] When it is necessary to adapt to the fusion tube with different end sizes, remove the ring spring 11 and loosen the fastener so that the claw body 4 can move along the direction of the adjustment track groove 5. After adjusting the claw body 4 to the appropriate position, tighten the fastener again to fix the position of the claw body 4, and put the ring spring 11 of the appropriate size back on.

[0040] When the chuck body 4 becomes loose due to long-term use, causing unstable electrical connection, directly loosen the fasteners to make the chuck body 4 move along the direction of the adjustment track groove 5. After adjusting the chuck body 4 to the appropriate position, tighten the fasteners again to fix the position of the chuck body 4. Then, determine whether to replace the ring spring 11 based on whether the ring spring 11 can apply sufficient force to the chuck body 4.

[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 fuse tube, comprising a tube body (1), lead-out terminals (2) located inside the tube body (1) for connecting the inner and outer sides of the tube body (1), and a claw assembly (3) connected to the lead-out terminals (2), characterized in that, The claw assembly (3) includes multiple claw bodies (4) and an annular claw mounting plate (14) for connecting the claw bodies (4) and the output terminal (2). The claw mounting plate (14) has multiple adjusting track grooves (5) evenly distributed around its circumference on the side facing the output terminal (2). Each adjusting track groove (5) extends from the middle of the annular side of the claw mounting plate (14) toward the center of the claw mounting plate (14). The bottom of the adjusting track groove (5) has multiple connecting slots (6) evenly distributed along the length of the adjusting track groove (5). One end of the claw body (4) is located in the adjusting track groove (5), and a connecting block (15) that fits into the connecting slot (6) is formed on the side of the claw body (4) facing the connecting slot (6).

2. The fuse tube according to claim 1, characterized in that, The cross-section of the connecting slot (6) is trapezoidal. The sidewalls of each connecting slot (6) in the direction of the center of the claw mounting plate (14) and in the direction away from the center of the claw mounting plate (14) are inclined towards the center of the claw mounting plate (14) in the direction away from the outgoing terminal (2). The inclination angle of the sidewall of the connecting slot (6) in the direction away from the center of the claw mounting plate (14) is greater than the inclination angle of the sidewall of the connecting slot (6) in the direction of the center of the claw mounting plate (14).

3. The fuse tube according to claim 2, characterized in that, The connecting block (15) is trapezoidal, and both sides of the connecting block (15) are inclined in the same direction towards the side away from the claw body (4), and the inclination angles on both sides are the same as the inclination angles of the two sides of the connecting slot (6).

4. The fuse tube according to claim 1, characterized in that, The claw body (4) includes a claw mounting section (7) and a claw connecting section (8), and the connecting block (15) is formed on the side of the claw mounting section (7) facing the claw connecting section (8).

5. The fuse tube according to claim 4, characterized in that, The claw connecting section (8) is formed with a claw pressing part (9) that is inclined toward the center of the claw mounting plate (14) in a direction away from the claw mounting section (7), and a guide limiting section (10) located at one end of the claw connecting section (8) away from the claw mounting section (7) that is inclined toward the center of the claw mounting plate (14) in a direction away from the claw mounting section (7). A ring spring (11) is sleeved on the claw body (4) at the position of the claw pressing part (9) to apply a force to the claw body (4) toward the center of the claw mounting plate (14).

6. The fuse tube according to claim 1, characterized in that, The outlet terminal (2) is located on the lower side of one end of the cylinder (1) and has multiple limiting blocks (12). The bottom surface of each limiting block (12) is an arc surface and gradually slopes downward from the center of the claw mounting plate (14) towards the surrounding area. The upper side of the claw mounting plate (14) is formed with limiting grooves (13) corresponding to the position of each limiting block (12). The adjusting track groove (5) is located on the bottom surface of the limiting groove (13). The claw body (4) includes a claw mounting section (7) and a claw connecting section (8). The claw mounting section (7) is an arc shape with the same diameter as the bottom surface of the limiting groove (13). The connecting block (15) is formed on the side of the claw mounting section (7) facing the bottom surface of the limiting groove (13).

7. The fuse tube according to claim 6, characterized in that, The cross-section of the connecting slot (6) is trapezoidal. The side wall of each connecting slot (6) facing the center of the claw mounting plate (14) points towards the center of the adjusting track groove (5). The side wall of each connecting slot (6) away from the center of the claw piece is inclined towards the center of the claw mounting plate (14) away from the output terminal (2). The connecting block (15) is trapezoidal, and the shape of the connecting block (15) matches the shape of the connecting slot (6).

8. The fuse tube according to claim 7, characterized in that, The claw connecting section (8) is formed with a claw pressure part (9) that is inclined toward the center of the claw mounting plate (14) in a direction away from the claw mounting section (7). A ring spring (11) is sleeved on the claw body (4) at the position of the claw pressure part (9) to apply a force to the claw body (4) toward the center of the claw mounting plate (14).

9. The fuse tube according to claim 8, characterized in that, The end of the claw connecting section (8) away from the claw mounting section (7) is configured as a guide limiting section (10) that is inclined away from the center of the claw mounting plate (14) in the direction away from the claw mounting section (7).

10. The fuse tube according to claim 1, characterized in that, The claw mounting plate (14) is connected to the outgoing terminal (2) by bolts.

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