CN220155478U

CN220155478U - Junction device for fuse

Info

Publication number: CN220155478U
Application number: CN202321500767.1U
Authority: CN
Inventors: 高德强; 魏宇婷; 吴雪丽
Original assignee: Xian Rock Electrical Equipment Co ltd
Current assignee: Xian Rock Electrical Equipment Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2023-12-08
Anticipated expiration: 2033-06-13

Abstract

The utility model relates to the technical field of fuses, and particularly discloses a wiring device for a fuse, which comprises a connecting piece, an upper connecting piece, a lower connecting piece and a screw, wherein a round hole and a waist-shaped hole are formed in the connecting piece, the round hole and the waist-shaped hole are both used for external connection, the waist-shaped hole can be finely adjusted when the hole position is inaccurate, two arc-shaped grooves are formed in the lower end of the connecting piece, two upward arc-shaped second grooves are formed in the upper end of the lower connecting piece, the screw penetrates through the upper connecting piece, the lower connecting piece and a connecting nut behind the connecting piece in sequence, and the second grooves are formed right below the grooves. When the wire connecting device is used, the device is arranged at the head part of the fuse through the round hole and the waist-shaped hole, then the wire to be connected is placed in the second groove, and then the screw is screwed down, so that the groove tightly presses the wire, and meanwhile, the saw teeth in the second groove can tightly clamp one end of the wire head, so that the connected wire is not easy to fall off.

Description

Junction device for fuse

Technical Field

The utility model relates to the technical field of fuses, in particular to a wiring device for a fuse.

Background

The existing fuse adopts the mode as shown in fig. 5 at its tip when connecting the electric wire, through the hole 701 at its head installation second connection piece 7, afterwards through the hole 701 of second connection piece 7 head, with electric wire welded connection at the hole 701 head, realized the connection to the head electric wire of fuse, but this kind of structure is when using, because welded point only has one place, and the solder joint is after using one end time, because the come-and-go swing of electric wire, can appear the whereabouts of electric wire for the fuse can not continue to use, very big influence the result of use of fuse.

Disclosure of Invention

The utility model provides a wiring device for a fuse, which solves the technical problems that when the existing fuse is used, as only one welding point is arranged at the end part, and the wire falls off due to the back and forth swinging of the wire after the welding point is used for a certain time, the fuse cannot be used continuously, and the using effect of the fuse is greatly influenced. The utility model designs a wiring device for a fuse.

The utility model discloses a wiring device for a fuse, which comprises a connecting sheet, an upper connecting piece, a lower connecting piece and a screw, wherein a round hole and a waist-shaped hole are formed in the connecting sheet, the round hole and the waist-shaped hole are both used for external connection, the waist-shaped hole can be finely adjusted when the hole position is inaccurate, external connection is realized, two arc-shaped grooves are formed in the lower end of the connecting piece, two arc-shaped second grooves are formed in the upper end of the lower connecting piece, the screw penetrates through the upper connecting piece, the lower connecting piece and a connecting nut after the connecting sheet in sequence, and the second grooves are formed under the grooves.

Preferably, the number of the screws is two, the screws are arranged at the center of the upper connecting piece in the length direction, and the two grooves and the second groove are symmetrically arranged at two sides of the screws.

Preferably, the upper ends of the second grooves are provided with saw-tooth-shaped protrusions.

Preferably, the width of the lower connecting member is greater than the width of the upper connecting member.

Preferably, a pressing block is connected between the screw and the upper connecting piece, and the pressing block is sleeved outside the screw.

Preferably, the lower end of the pressing block is a concave arc-shaped curved surface, the upper end of the upper connecting piece is a convex arc-shaped surface, and the lower end of the pressing block is matched with the upper end of the upper connecting piece.

Preferably, the lower end of the lower connecting piece is of a flat bottom structure.

Compared with the prior art, the utility model has the following beneficial effects:

when the device is used, the device is arranged at the head part of the fuse through the round hole and the waist-shaped hole, then the wire to be connected is placed in the second groove, and then the screw is screwed down, so that the groove tightly presses the wire, and meanwhile, the saw teeth in the second groove tightly clamp one end of the wire head, so that the connected wire is not easy to fall off; meanwhile, the connection mode of the two groups of screws is greatly improved in connection reliability, the screws are mutually perpendicular to the electric wires, and the wires are pressed through the grooves, so that the positions of the wires are stable. The head of electric wire is difficult to drop after the connection, very big promotion the stability of fuse performance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic top view of a wiring device for a fuse of the present utility model;

FIG. 2 is a schematic cross-sectional view of a wiring device for a fuse of the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 2 a of a wiring device for a fuse of the present utility model;

FIG. 4 is a schematic view showing a connecting piece of a wiring device for a fuse of the present utility model;

FIG. 5 is a schematic diagram of a second connecting piece connecting structure of the background art;

FIG. 6 is a schematic view showing a use state structure of a wiring device for a fuse of the present utility model;

in the figure: the connecting piece 1, the round hole 101, the waist-shaped hole 102, the upper connecting piece 2, the groove 201, the lower connecting piece 3, the second groove 301, the screw 4, the nut 5 and the pressing block 6.

Detailed Description

Various embodiments of the present utility model are disclosed in the following drawings, which are presented in sufficient detail to provide a thorough understanding of the present utility model. However, it should be understood that these physical details should not be used to limit the utility model. That is, in some embodiments of the present utility model, these physical details are not necessary. Moreover, for the sake of simplicity of illustration, some well-known and conventional structures and components are shown in the drawings in a simplified schematic manner.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1-4 and 6, the wiring device for a fuse of the present utility model includes a connecting piece 1, an upper connecting piece 2, a lower connecting piece 3, and a screw 4, wherein a circular hole 101 and a waist-shaped hole 102 are formed on the connecting piece 1, the circular hole 101 and the waist-shaped hole 102 are both used for external connection, the waist-shaped hole 102 can be finely adjusted when the hole position is inaccurate, external connection is achieved, two arc-shaped grooves 201 are formed at the lower end of the connecting piece 2, two arc-shaped second grooves 301 are formed at the upper end of the lower connecting piece 3, and the screw 4 sequentially penetrates through the upper connecting piece 2, the lower connecting piece 3, and the connecting nut 5 after the connecting piece 1, and the second grooves 301 are disposed under the grooves 201. Arc chamfers are arranged at the inlet and outlet positions of the second groove 301 and the groove 201, so that the outer skin of the electric wire is not easy to damage when the electric wire is connected.

Further, the number of the screws 4 is two, the screws 4 are arranged at the center of the upper connecting piece 2 in the length direction, and the two grooves 201 and the second groove 301 are symmetrically arranged at two sides of the screws 4.

Further, the upper ends of the second grooves 301 are provided with saw-tooth protrusions. The sawtooth-shaped protrusions clamp the electric wires after the electric wires are connected, so that the electric wires are not easy to fall off.

Further, the width of the lower connector 3 is larger than the width of the upper connector 2.

Further, a pressing block 6 is connected between the screw 4 and the upper connecting piece 2, and the pressing block 6 is sleeved outside the screw 4.

Further, the lower end of the pressing block 6 is a concave arc-shaped curved surface, the upper end of the upper connecting piece 2 is a convex arc-shaped surface, and the lower end of the pressing block 6 is matched with the upper end of the upper connecting piece 2.

Further, the lower end of the lower connecting piece 3 is of a flat bottom structure.

Examples: when the device is used, the device is arranged at the head part of the fuse through the circular hole 101 and the waist-shaped hole 102, then the wire to be connected is placed inside the second groove 301, then the screw 4 is screwed down, so that the groove 201 tightly presses the wire, meanwhile, the saw teeth inside the second groove 301 tightly clamp one end of the wire head, the connected wire is not easy to fall off, and the position of the wire is stable.

The foregoing description is only illustrative of the utility model and is not to be construed as limiting the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principle of the present utility model, should be included in the scope of the claims of the present utility model.

Claims

1. A wiring device for a fuse, characterized in that: including connection piece (1), go up connecting piece (2), lower connecting piece (3), screw (4), round hole (101), a waist type hole (102) have been seted up on connection piece (1), round hole (101) with waist type hole (102) all are used for external connection, connecting piece (2) lower extreme is provided with two curved recess (201), the upper end of lower connecting piece (3) is provided with two ascending curved second recesses (301), connecting nut (5) after connecting piece (1) are gone up in proper order through connecting piece (2), lower connecting piece (3), connecting piece (4), second recess (301) set up under recess (201).

2. A wiring device for a fuse as in claim 1, wherein: the two screws (4) are arranged at the center of the upper connecting piece (2) in the length direction, and the two grooves (201) and the second groove (301) are symmetrically arranged at two sides of the screws (4).

3. A wiring device for a fuse as in claim 1, wherein: the upper ends of the second grooves (301) are provided with saw-tooth-shaped protrusions.

4. A wiring device for a fuse as in claim 1, wherein: the width of the lower connecting piece (3) is larger than that of the upper connecting piece (2).

5. A wiring device for a fuse as in claim 2, wherein: a pressing block (6) is connected between the screw (4) and the upper connecting piece (2), and the pressing block (6) is sleeved outside the screw (4).

6. A wiring device for a fuse as in claim 5, wherein: the lower end of the pressing block (6) is a concave arc-shaped curved surface, the upper end of the upper connecting piece (2) is a convex arc-shaped surface, and the lower end of the pressing block (6) is matched with the upper end of the upper connecting piece (2).

7. A wiring device for a fuse as in claim 1, wherein: the lower end of the lower connecting piece (3) is of a flat bottom structure.