Isolation type fuse

Abstract

The utility model discloses an isolation type fuse, which comprises an isolation type fuse body, a mounting seat is arranged right below the bottom end of the isolation type fuse body, two sides of the bottom end of the isolation type fuse body are fixedly connected with fixing strips, and two sides of the top end of the mounting seat are provided with strip-shaped grooves matched with the fixing strips. And the gears are arranged on the two sides of the interior of the mounting base, and the top ends and the bottom ends of the two gears are engaged with racks correspondingly. Through cooperative use of the gear, the racks, the lifting rod, the clamping head and the fixing strip, the gear is driven to rotate when the lifting rod is lifted, the gear controls the racks at the upper end and the lower end to move transversely, the clamping head is driven to retreat from the clamping groove when the racks move, and then the isolation type fuse body is taken down from the front face of the mounting base by the right hand. In this way, when the isolation type fuse body is disassembled, no auxiliary tool or bolt is needed, the whole device does not need to be disassembled either, and the disassembly and assembly mode is more efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to an isolation type fuse. Background Art

[0002] An isolation fuse is an electrical device that is usually used in power systems to ensure the safety of circuits. Its main function is to isolate the circuit from the power supply through physical isolation so that the circuit can be maintained, repaired or parts replaced. The isolation fuse can also protect the circuit from overcurrent or short circuit.

[0003] For example, a fuse-type disconnector disclosed in the authorization announcement number CN213815885U includes a base with a contact seat, a flip cover movably connected to the upper part of the base, and three fuses installed inside the flip cover. When the flip cover is closed, the contacts on the fuses contact the corresponding contact seats. The beneficial effects of adopting the above technical solution are: the installation and removal process of the entire fuse is simple and convenient, the structure is reasonable, and it has good practicality.

[0004] Although the above patent can make the installation and removal process of the entire fuse body simple and convenient, the fuse-type isolating switch is connected to the electrical box through fixings. When the fuse-type isolating switch needs to be removed from the electrical box, the entire fuse-type isolating switch must be removed from the installation position, and a disassembly tool is required. Frequent removal of fixings such as bolts will cause wear of the thread groove, thereby reducing the stability of the subsequent connection. Utility Model Content

[0005] The purpose of the utility model is to provide an isolation fuse to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An isolating fuse comprises an isolating fuse body, a mounting seat is arranged directly below the bottom end of the isolating fuse body, fixing strips are fixedly connected to both sides of the bottom end of the isolating fuse body, and strip grooves matching the fixing strips are opened on both sides of the top end of the mounting seat; gears are arranged on both sides of the inside of the mounting seat, the top and bottom ends of the two gears are respectively meshed with racks, a lifting rod is movably installed on the outer side of the middle part of the mounting seat, and two gears are respectively connected to two gears at both ends of one side of the lifting rod; both ends of the fixing strip are penetrated with a card slot, and the end of the rack away from the gear is fixedly connected with a card head, and the card head matches the card slot.

[0008] Preferably, brackets are provided on both sides of the mounting seat close to the gear, a fixing block is fixedly installed on the top of one side of the clamp close to the bracket, and the fixing block is movably connected to the bracket via a spring;

[0009] Preferably, a guide groove is penetrated and opened below a side of the bracket away from the spring, and the middle part of the clamp head is movably sleeved with the guide groove;

[0010] Preferably, shaft sleeves are fixedly mounted on both sides of the middle of the mounting seat, and the shaft sleeves are movably mounted on the lifting rod;

[0011] Preferably, a linear bearing is provided between the shaft sleeve and the lifting rod;

[0012] Preferably, the ends of the two gears away from the lifting rod are fixedly connected via a transmission shaft;

[0013] Preferably, mounting bars are symmetrically arranged on both sides of the mounting seat, and a plurality of bolt holes are regularly arranged on the mounting bars.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The isolation fuse is used in conjunction with a gear, a rack, a lifting rod, a clamp and a fixing bar. When the lifting rod is lifted, the gear is driven to rotate. The gear controls the lateral movement of the racks at the upper and lower ends. When the rack moves, the clamp is driven to withdraw from the slot. Then the isolation fuse body can be removed from the front of the mounting base with the right hand. In this way, when disassembling the isolation fuse body, there is no need to use auxiliary tools and bolts, nor is there any need to disassemble the equipment as a whole. The disassembly and assembly method is more efficient.

[0016] 2. The isolating fuse is used in conjunction with the clamp, the fixing block, the spring and the bracket. When the rack moves laterally, the fixing block on the top side of the clamp moves synchronously toward the direction of the gear and compresses the spring until the isolating fuse body is removed from the front of the mounting base and the lifting rod is released. At this time, the compressed spring will control the fixing block to rebound, thereby driving the clamp and the rack to reset, and finally controlling the lifting rod to fall automatically. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the mounting seat of the utility model;

[0019] Figure 3 It is a top view schematic diagram of the mounting base of the utility model;

[0020] Figure 4 For the utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1. Isolation fuse body; 2. Mounting seat; 3. Fixing strip; 4. Strip groove; 5. Gear; 6. Rack; 7. Lifting rod; 8. Slot; 9. Clamp; 10. Bracket; 11. Fixing block; 12. Spring; 13. Guide groove; 14. Bushing; 15. Mounting strip. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0024] An isolation fuse comprises an isolation fuse body 1, a mounting seat 2 is arranged just below the bottom end of the isolation fuse body 1, fixing strips 3 are fixedly connected to both sides of the bottom end of the isolation fuse body 1, and strip grooves 4 matching the fixing strips 3 are opened on both sides of the top end of the mounting seat 2; gears 5 are arranged on both sides of the inside of the mounting seat 2, and the ends of the two gears 5 away from the lifting rod 7 are fixedly connected through a transmission shaft, and the top and bottom ends of the two gears 5 are respectively meshed with racks 6, and a lifting rod 7 is movably installed on the outer side of the middle part of the mounting seat 2, and the two ends of one side of the lifting rod 7 are respectively connected to the two gears 5; both ends of the fixing strip 3 are penetrated and opened with a card slot 8, and the end of the rack 6 away from the gear 5 is fixedly connected with a card head 9, and the card head 9 matches the card slot 8;

[0025] In this embodiment, when disassembling the isolation fuse body 1, the left hand lifts the lifting rod 7, and the right hand fixes the isolation fuse body 1. When the lifting rod 7 is lifted, the gear 5 is driven to rotate, and the gear 5 controls the lateral movement of the racks 6 at the upper and lower ends. When the rack 6 moves, it drives the clamping head 9 to withdraw from the clamping slot 8, and then the right hand removes the isolation fuse body 1 from the front of the mounting seat 2. In this way, when disassembling the isolation fuse body 1, there is no need to use auxiliary tools and bolts, nor is there any need to disassemble the equipment as a whole, and the disassembly and assembly method is more efficient.

[0026] like Figure 4 As shown, brackets 10 are provided on both sides of the mounting seat 2 close to the gear 5, a fixing block 11 is fixedly installed on the top of one side of the clamping head 9 close to the bracket 10, the fixing block 11 and the bracket 10 are movably connected through a spring 12, a guide groove 13 is penetrated and opened below the side of the bracket 10 away from the spring 12, and the middle part of the clamping head 9 is movably sleeved with the guide groove 13;

[0027] In this embodiment, when the rack 6 moves laterally, the fixed block 11 on the top side of the clamp head 9 moves synchronously toward the direction of the gear 5 and compresses the spring 12 until the isolation fuse body 1 is removed from the front of the mounting base 2 and the lifting rod 7 is released. At this time, the compressed spring 12 will control the fixed block 11 to rebound, thereby driving the clamp head 9 and the rack 6 to reset, and finally controlling the lifting rod 7 to fall automatically.

[0028] like Figure 1 As shown, shaft sleeves 14 are fixedly installed on both sides of the middle of the mounting seat 2, and the shaft sleeves 14 and the lifting rod 7 are movably mounted, and a linear bearing is arranged between the shaft sleeves 14 and the lifting rod 7;

[0029] In this embodiment, the shaft sleeve 14 is movably connected to the lifting rod 7 and is guided by a linear bearing, which can improve lubrication.

[0030] like Figure 1 As shown, mounting bars 15 are symmetrically arranged on both sides of the mounting seat 2, and a plurality of bolt holes are regularly arranged on the mounting bars 15;

[0031] In this embodiment, the mounting strip 15 is used to fix the mounting base 2 on the mounting frame inside the electrical device, and the bolt hole is used to connect the bolt.

[0032] Working principle: When installing the isolating fuse body 1, first fix the mounting base 2 at the specified installation position in the electrical box, then fix it with bolts, and then fix the isolating fuse body 1 on the front of the mounting base 2. When the isolating fuse body 1 needs to be disassembled, lift the lifting rod 7 with your left hand and fix the isolating fuse body 1 with your right hand. When the lifting rod 7 is lifted, it drives the gear 5 to rotate. The gear 5 controls the lateral movement of the racks 6 at the upper and lower ends. When the rack 6 moves, it drives the clamp head 9 to withdraw from the clamping slot 8. Then, the isolating fuse body 1 can be removed from the front of the mounting base 2 with your right hand.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. Isolation fuse, characterized in that: include An isolation type fuse body (1), wherein a mounting seat (2) is arranged directly below the bottom end of the isolation type fuse body (1), fixing strips (3) are fixedly connected to both sides of the bottom end of the isolation type fuse body (1), and strip grooves (4) matching the fixing strips (3) are provided on both sides of the top end of the mounting seat (2); Gears (5), the gears (5) being arranged on both sides of the interior of the mounting seat (2), the top and bottom ends of the two gears (5) being respectively meshed with racks (6), a lifting rod (7) being movably mounted on the outer side of the middle portion of the mounting seat (2), and two ends of one side of the lifting rod (7) being respectively connected to the two gears (5); Both ends of the fixing strip (3) are penetrated to form a clamping groove (8), and the end of the rack (6) away from the gear (5) is fixedly connected with a clamping head (9), and the clamping head (9) matches the clamping groove (8).

2. The isolating fuse according to claim 1, characterized in that: Brackets (10) are provided on both sides of the mounting seat (2) close to the gear (5), and a fixing block (11) is fixedly installed on the outside of the top end of one side of the clamping head (9) close to the bracket (10), and the fixing block (11) and the bracket (10) are movably connected via a spring (12).

3. The isolating fuse according to claim 2, characterized in that: A guide groove (13) is formed through the lower part of the bracket (10) away from the spring (12), and the middle part of the clamp (9) is movably sleeved with the guide groove (13).

4. The isolating fuse according to claim 1, characterized in that: Axle sleeves (14) are fixedly mounted on both sides of the middle of the mounting seat (2), and the shaft sleeves (14) are movably mounted on the lifting rod (7).

5. The isolating fuse according to claim 4, characterized in that: A linear bearing is provided between the shaft sleeve (14) and the lifting rod (7).

6. The isolating fuse according to claim 1, characterized in that: The ends of the two gears (5) away from the lifting rod (7) are fixedly connected via a transmission shaft.

7. The isolating fuse according to claim 1, characterized in that: Mounting bars (15) are symmetrically arranged on both sides of the mounting seat (2), and a plurality of bolt holes are regularly arranged on the mounting bars (15).

Images