High-stability high-voltage fuse with fusible core convenient to replace

Abstract

The utility model discloses a high-stability high-voltage fuse with a fusible core convenient to replace, and relates to the technical field of high-voltage fuses. The high-stability high-voltage fuse with the fusible core convenient to replace comprises two connection plates. The dismounting assembly is arranged on the connecting plate, the dismounting assembly comprises a right side porcelain fusion tube cover, a first external thread ring, a thread bushing, a second external thread ring, a porcelain fusion tube, a left side porcelain fusion tube cover, two clamping grooves and two strip-shaped clamping pieces, the right side porcelain fusion tube cover is fixed on the connecting plate, the first external thread ring is welded on the right side porcelain fusion tube cover, and the second external thread ring is welded on the right side porcelain fusion tube cover. The surface of the first external threaded ring is in threaded connection with the inner surface of the threaded sleeve, and through the arrangement of the threaded sleeve in the dismounting assembly, when the porcelain fusion tube needs to be replaced, only the threaded sleeve needs to be driven by external force to move to be separated from the surface of the first external threaded ring, and then the porcelain fusion tube is driven to move to be separated from the right porcelain fusion tube cover and the left porcelain fusion tube cover. In the whole process, external tools are not needed, the requirement for disassembly is lower, and disassembly is easier and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage fuses, in particular to a high-voltage fuse with high stability and convenient fuse core replacement. Background Art

[0002] High-voltage fuse is an important power protection device, mainly used in power systems such as power substations, transmission lines, and power plants. The Chinese utility model patent, authorization announcement number "CN221282026U", discloses a high-efficiency high-voltage fuse, including: a base, a pair of insulators are symmetrically arranged on the top of the base, a pair of insulators are each provided with a U-shaped seat on the top, a pair of U-shaped seats are each provided with a contact plate inside, a pair of contact plates are each provided with a metal cap inside, and a porcelain melting tube is provided between the pair of metal caps; an insulating baffle for limiting the metal cap is provided on the side wall of one of the U-shaped seats, a support plate is provided on the side wall of the other U-shaped seat, a threaded column is provided on the side wall of the support plate, and an insulating disk for clamping the metal cap is provided at the end of the threaded column.

[0003] The above technical solution has a reasonable structure, is easy to take out and has a high replacement efficiency. However, when the porcelain melting tube needs to be disassembled, an external tool is required to loosen the locking nut, which makes replacement more troublesome. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, to provide a high-voltage fuse with high stability and easy replacement of the fuse core, and to solve the problem that when the porcelain fuse tube needs to be disassembled, the locking nut needs to be loosened by an external tool, which makes replacement more troublesome.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-voltage fuse with high stability and convenient replacement of the fuse core, comprising two connecting plates;

[0006] The disassembly assembly is set on the connecting plate, and the disassembly assembly includes a right-side porcelain-fused pipe cover, an external threaded ring 1, a threaded sleeve, an external threaded ring 2, a porcelain-fused pipe, a left-side porcelain-fused pipe cover, two slots and two strip clips. The right-side porcelain-fused pipe cover is fixed on the connecting plate, the external threaded ring 1 is welded to the right-side porcelain-fused pipe cover, the surface of the external threaded ring 1 is threadedly connected to the inner surface of the threaded sleeve, and the inner surface of the threaded sleeve is threadedly connected to the outer surface of the external threaded ring 2.

[0007] Preferably, the second external threaded ring is welded to the porcelain-fusion tube, and the two strip-shaped clamps are both welded to the porcelain-fusion tube.

[0008] Preferably, the left porcelain-melting tube cover is welded to the left connecting plate, two slots are provided on the left porcelain-melting tube cover, and two strip-shaped clips are respectively clipped inside corresponding slots.

[0009] Preferably, insulators are screwed onto the lower ends of the two connecting plates, and bases are fixedly connected to the lower surfaces of the two insulators.

[0010] Preferably, a placement groove is provided on the surface of the porcelain melting tube, and a fusion core is arranged inside the placement groove.

[0011] Preferably, a threaded hole 1 is provided on the surface of the porcelain melting tube, a screw is threadedly connected to the inner surface of the threaded hole 1, and a threaded hole 2 is provided on the surface of the melting core, and the inner surface of the threaded hole 2 is threadedly connected to the surface of the screw.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The high-stability high-voltage fuse with easy replacement of the fuse core is provided with a threaded sleeve in the disassembly assembly. When the porcelain-melting tube needs to be replaced, it is only necessary to drive the threaded sleeve to move away from the surface of the external threaded ring through external force, and then drive the porcelain-melting tube to move and remove the right porcelain-melting tube cover and the left porcelain-melting tube cover. The whole process does not require the aid of external tools, the disassembly requirements are lower, and the disassembly is easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the position relationship between the left porcelain melting tube cover and the card slot of the utility model;

[0017] Figure 3 This is a schematic diagram of the position relationship between the porcelain melting tube and the melting core of the utility model;

[0018] Figure 4 This is a schematic diagram of the interior of the porcelain melting tube of the utility model;

[0019] Figure 5 It is an overall schematic diagram of the fuse core of the utility model.

[0020] Figure numerals: 1. base; 2. insulator; 3. connecting plate; 4. right porcelain-fused tube cover; 5. external thread ring 1; 6. threaded sleeve; 7. external thread ring 2; 8. porcelain-fused tube; 9. left porcelain-fused tube cover; 10. slot; 11. strip clip; 12. screw; 13. threaded hole 1; 14. placement slot; 15. fuse core; 16. threaded hole 2. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] See also Figure 1-5 , the utility model provides a technical solution: a high-voltage fuse with high stability and convenient replacement of the fuse core, including two connecting plates 3;

[0026] The disassembly assembly is arranged on the connecting plate 3, and the disassembly assembly includes a right-side porcelain-fused pipe cover 4, an externally threaded ring 1 5, a threaded sleeve 6, an externally threaded ring 2 7, a porcelain-fused pipe 8, a left-side porcelain-fused pipe cover 9, two card slots 10 and two strip card pieces 11. The right-side porcelain-fused pipe cover 4 is fixed on the connecting plate 3, the externally threaded ring 1 5 is welded to the right-side porcelain-fused pipe cover 4, the surface of the externally threaded ring 1 5 is threadedly connected to the inner surface of the threaded sleeve 6, and the inner surface of the threaded sleeve 6 is threadedly connected to the outer surface of the externally threaded ring 2 7.

[0027] The external threaded ring 7 is welded on the porcelain-melting tube 8 , and the two strip-shaped clamps 11 are both welded on the porcelain-melting tube 8 .

[0028] The left porcelain-melting tube cover 9 is welded on the left connecting plate 3 , two clamping slots 10 are both provided on the left porcelain-melting tube cover 9 , and two strip clamping members 11 are respectively clamped in the corresponding clamping slots 10 .

[0029] Insulators 2 are screwed onto the lower ends of the two connecting plates 3 , and the lower surfaces of the two insulators 2 are fixedly connected with the base 1 .

[0030] A placement groove 14 is provided on the surface of the porcelain melting tube 8 , and a fusion core 15 is arranged inside the placement groove 14 .

[0031] A threaded hole 13 is formed on the surface of the porcelain melting tube 8 , and the screw 12 is threadedly connected to the inner surface of the threaded hole 13 . A threaded hole 2 16 is formed on the surface of the fusion core 15 , and the inner surface of the threaded hole 2 16 is threadedly connected to the surface of the screw 12 .

[0032] When it is necessary to remove the fuse core 15;

[0033] First, the threaded sleeve 6 is driven to move by an external force, and the threaded sleeve 6 moves to separate from the surface of the external threaded ring 5. Then, the porcelain melting tube 8 is driven to move by an external force, and the movement of the porcelain melting tube 8 drives the two strip clips 11 to move, and the two strip clips 11 move to separate from the inside of the corresponding slots 10.

[0034] Subsequently, the screw 12 is driven to be removed from the surface of the porcelain-melting tube 8 by an external force, and then the fuse 15 is driven to move out of the interior of the porcelain-melting tube 8 by an external force, so that the fuse 15 is replaced.

[0035] Finally, the new fuse 15 is driven to move, and the movement of the fuse 15 drives the threaded hole 2 16 to move until it coincides with the threaded hole 13. Subsequently, the screw 12 is screwed into the threaded hole 13 and the threaded hole 2 16 by an external force. Subsequently, the porcelain melting tube 8 is driven to move by an external force, and the movement of the porcelain melting tube 8 drives the two strip clips 11 to move to the inside of the corresponding slot 10. Subsequently, the threaded sleeve 6 is driven to move to the surface of the external threaded ring 1 5 by an external force.

[0036] It should be noted that the threaded sleeve 6 eventually contacts both the external threaded ring 1 5 and the external threaded ring 2 7 .

[0037] By setting the threaded sleeve 6 in the disassembly assembly, when the porcelain-melting tube 8 needs to be replaced, it is only necessary to use external force to drive the threaded sleeve 6 to move and separate from the surface of the external threaded ring 5, and then drive the porcelain-melting tube 8 to move and separate from the right porcelain-melting tube cover 4 and the left porcelain-melting tube cover 9. The whole process does not require the aid of external tools, the disassembly requirements are lower, and the disassembly is easier.

[0038] When installing the porcelain-fusion tube 8, it is necessary to align its threaded sleeve 6 with the external threaded ring 5. By setting two strip clamps 11 to be clamped in the corresponding clamping grooves 10, the porcelain-fusion tube 8 is positioned to ensure that the threaded sleeve 6 on the porcelain-fusion tube 8 can be aligned with the external threaded ring 5, thereby facilitating subsequent installation work.

[0039] Working principle:

[0040] When it is necessary to remove the fuse core 15;

[0041] First, the threaded sleeve 6 is driven to move by an external force, and the threaded sleeve 6 moves to separate from the surface of the external threaded ring 5. Then, the porcelain melting tube 8 is driven to move by an external force, and the movement of the porcelain melting tube 8 drives the two strip clips 11 to move, and the two strip clips 11 move to separate from the inside of the corresponding slots 10.

[0042] Subsequently, the screw 12 is driven to be removed from the surface of the porcelain-melting tube 8 by an external force, and then the fuse 15 is driven to move out of the interior of the porcelain-melting tube 8 by an external force, so that the fuse 15 is replaced.

[0043] Finally, the new fuse 15 is driven to move, and the movement of the fuse 15 drives the threaded hole 2 16 to move until it coincides with the threaded hole 13. Subsequently, the screw 12 is screwed into the threaded hole 13 and the threaded hole 2 16 by an external force. Subsequently, the porcelain melting tube 8 is driven to move by an external force, and the movement of the porcelain melting tube 8 drives the two strip clips 11 to move to the inside of the corresponding slot 10. Subsequently, the threaded sleeve 6 is driven to move to the surface of the external threaded ring 1 5 by an external force.

[0044] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. High stability high voltage fuse with easy replacement of fuse core, characterized by: include: two adapter plates (3); The disassembly assembly is arranged on the connecting plate (3), and comprises a right porcelain-melting pipe cover (4), an external threaded ring 1 (5), a threaded sleeve (6), an external threaded ring 2 (7), a porcelain-melting pipe (8), a left porcelain-melting pipe cover (9), two clamping grooves (10) and two strip clamping parts (11); the right porcelain-melting pipe cover (4) is fixed on the connecting plate (3), the external threaded ring 1 (5) is welded on the right porcelain-melting pipe cover (4), the surface of the external threaded ring 1 (5) is threadedly connected to the inner surface of the threaded sleeve (6), and the inner surface of the threaded sleeve (6) is threadedly connected to the outer surface of the external threaded ring 2 (7).

2. The high-stability high-voltage fuse with easy-to-replace fuse core according to claim 1 is characterized in that: The second external threaded ring (7) is welded to the porcelain-melting tube (8), and the two strip-shaped clamps (11) are both welded to the porcelain-melting tube (8).

3. The high-stability high-voltage fuse with easy-to-replace fuse core according to claim 1 is characterized in that: The left porcelain-melting tube cover (9) is welded to the left connecting plate (3), two clamping slots (10) are both provided on the left porcelain-melting tube cover (9), and two strip clamping pieces (11) are respectively clamped in the inside of the corresponding clamping slots (10).

4. The high-stability high-voltage fuse with easy-to-replace fuse core according to claim 1 is characterized in that: Insulators (2) are screwed onto the lower ends of the two connection plates (3), and the lower surfaces of the two insulators (2) are fixedly connected to the base (1).

5. The high-stability high-voltage fuse with easy-to-replace fuse core according to claim 1 is characterized in that: A placement groove (14) is provided on the surface of the porcelain melting tube (8), and a fusion core (15) is arranged inside the placement groove (14).

6. The high-stability high-voltage fuse with easy-to-replace fuse core according to claim 5 is characterized in that: The surface of the porcelain melting tube (8) is provided with a threaded hole 1 (13), the inner surface of the threaded hole 1 (13) is threadedly connected to a screw (12), and the surface of the fusion core (15) is provided with a threaded hole 2 (16), the inner surface of the threaded hole 2 (16) is threadedly connected to the surface of the screw (12).

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