Fuse for weak current engineering

Abstract

The utility model relates to the technical field of fuses, in particular to a fuse for weak current engineering, which comprises a base, a clamping seat and a butt joint mechanism. A fusible core assembly is arranged in the base; the clamping seat is mounted on the rear side wall of the base through bolts, a clamping groove is formed in the clamping seat, and a containing part is arranged at the top end of the clamping seat; the butt joint mechanism is arranged on the storage part; the butt joint mechanism comprises a limiting column and a clamping rod. According to the utility model, the limiting assembly is arranged on the cover plate, so that the cover plate and the base can be quickly opened or closed, the fusible core assembly can be conveniently protected and installed, and the installation stability of the fusible core assembly is further improved through the arrangement of the abutting seat; by arranging the fastening assemblies on the clamping seats, the connection stability of the clamping seats and the mounting rail can be improved, falling off can be avoided, two adjacent groups of clamping seats can be conveniently and rapidly spliced through the arrangement of the butt joint mechanisms, then splicing use of multiple groups of fuses can be completed, and the connection stability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuse technology field, concretely is a fuse for weak current engineering. BACKGROUND

[0002] Weak current generally refers to direct current circuit or audio, video line, network line, telephone line, alternating voltage is generally within 36V, weak current circuit is protected for protecting electronic components from being damaged, needs to install the fuse for protection, and the fuse refers to when the current exceeds the specified value, with the heat generated by itself to make the fuse melt, and disconnect the circuit of an electric appliance. The fuse is composed of a base and a fuse core. In actual use, multiple fuses are usually combined for use.

[0003] The Chinese patent with the authorization announcement number CN214152833U discloses a fuse for weak current engineering. By setting the clamping device and the blocking device, when the burnt fuse body needs to be replaced, the blocking plate is moved outward by moving the block outward, and the second buffer spring is in a stretched state, so that the blocking plate does not block the fuse body. After the burnt fuse body is removed, the new fuse body is placed on the conductive plates of the two clamping devices, and is pressed downward so that the fuse body is embedded between the two lead plates. Then, the block is released, and under the action of the elastic force of the second buffer spring, the blocking plate blocks the fuse body, so that the fuse body does not fall out, achieving the effect of quick and simple installation.

[0004] However, the above-mentioned disclosed scheme has the following disadvantages: the setting of the concave mounting block is not convenient for quickly and stably splicing and assembling two adjacent groups of fuses into a fuse group, which brings inconvenience to actual use. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a fuse for weak current engineering.

[0006] The technical scheme of the utility model: a fuse for weak current engineering, including the base, its inside is provided with the fuse core subassembly, the clamping seat is installed at the rear side wall of the base through the bolt, the clamping seat is provided with the clamping groove, is used for clamping with the outside installation guide rail, the clamping seat top is equipped with the storage part, and the docking mechanism is set up on the storage part, and the docking mechanism includes the limiting post, which is installed on one side of the storage part, and the clamping rod is rotatably connected to the other side of the storage part, and the other end of the clamping rod is provided with the clamping interface, and the clamping interface corresponds to the limiting post.

[0007] Preferably, the top end of the base is provided with an opening, the bottom end of the base is hingedly connected with a cover plate, the upper end of the cover plate is provided with a limiting assembly, the limiting assembly comprises a mounting hole arranged on the cover plate, an adjusting seat slidably connected with the mounting hole, the adjusting seat is C-shaped, one end of the adjusting seat extends to the outside of the mounting hole, the other end of the adjusting seat extends to the inside of the mounting hole and is inserted with the opening, and a first elastic member, one end of which is mounted on the bottom end of the mounting hole, and the other end of which is connected with the adjusting seat.

[0008] Preferably, a plurality of second elastic members are arranged on the inside of the cover plate, the other ends of the plurality of second elastic members are mounted with an abutting seat, the inside of the base and the side wall opposite to the cover plate are also provided with another set of abutting seats and second elastic members, and the two sets of abutting seats abut against the side wall of the fuse body in the fuse core assembly.

[0009] Preferably, two sets of fastening assemblies are symmetrically arranged on the clamping seat, the fastening assembly is composed of a third elastic member and an abutting block, mounting grooves are arranged on the clamping seat and located at the top end and the bottom end of the clamping groove, the third elastic member is mounted in the mounting groove, the other end of the third elastic member is mounted with the abutting block, and the abutting block is slidably connected with the mounting groove.

[0010] Preferably, a positioning assembly is arranged on the clamping seat, the positioning assembly is composed of a guide block mounted on one side wall of the clamping seat and a butt joint seat mounted on the other side wall of the clamping seat, and the guide block corresponds to the butt joint seat.

[0011] Preferably, a rotating shaft is arranged on the receiving part and away from the limiting column, the clamping rod is rotationally connected with the rotating shaft, and the outer circumferential surface of the limiting column, the outer circumferential surface of the rotating shaft and the inner wall of the clamping port are all provided with rubber pads.

[0012] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects: the limiting assembly arranged on the cover plate facilitates the quick opening or closing of the cover plate and the base, facilitates the protection and installation of the fuse core assembly, and further improves the installation stability of the fuse core assembly through the arrangement of the abutting seat; the fastening assembly arranged on the clamping seat can improve the connection stability of the clamping seat and the mounting track, avoid falling off, and the butt joint mechanism facilitates the quick splicing of the adjacent two sets of clamping seats, so that the splicing and use of multiple fuses can be completed, and the connection stability is high. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a cover plate and base connection mode schematic view of the utility model;

[0015] Figure 3 It is a clamping seat structure schematic view of the utility model;

[0016] Figure 4The adjacent clamping seat connection mode schematic view of the utility model.

[0017] Mark: 1, base; 101, mouth; 102, cover plate; 103, mounting port; 104, first elastic member; 105, adjusting seat; 106, abutting seat; 107, second elastic member; 2, clamping seat; 201, guide block; 202, butt joint seat; 203, storage part; 204, clamping groove; 3, third elastic member; 301, abutting block; 4, limiting column; 401, pivot; 402, clamping rod; 403, clamping port. DETAILED DESCRIPTION

[0018] Example one

[0019] As Figure 1 , Figure 3 and Figure 4 indicated, the utility model provides a fuse for weak current engineering, including base 1, clamping seat 2 and butt joint mechanism, base 1 inside is provided with fuse core assembly, and fuse core assembly is prior art, and is constituted by clamping device, fuse body and binding post, clamping seat 2 is installed on the rear side wall of base 1 through bolt, and clamping groove 204 is set up on clamping seat 2, is used for clamping with the external installation guide rail, and clamping seat 2 top is equipped with storage part 203, butt joint mechanism is set up on storage part 203.

[0020] Butt joint mechanism includes limiting column 4 and clamping rod 402, limiting column 4 is installed on one side of storage part 203, and clamping rod 402 is rotatably connected to the other side of storage part 203, and the other end of clamping rod 402 is provided with clamping port 403, and clamping port 403 corresponds with limiting column 4.

[0021] Further, two groups of fastening assemblies are symmetrically arranged on the clamping seat 2, the fastening assembly is composed of the third elastic member 3 and the abutting block 301, the third elastic member 3 is a spring, the mounting groove is arranged on the top and the bottom of the clamping groove 204 on the clamping seat 2, the third elastic member 3 is installed in the mounting groove, the other end of the third elastic member 3 is provided with the abutting block 301, and the abutting block 301 is slidably connected with the mounting groove.

[0022] Further, the positioning assembly is arranged on the clamping seat 2, the positioning assembly is composed of the guide block 201 arranged on one side wall of the clamping seat 2 and the butt joint seat 202 arranged on the other side wall of the clamping seat 2, and the guide block 201 corresponds to the butt joint seat 202. First, the butt joint seat 202 on one group of clamping seats 2 is pressed against the guide block 201 on the other group of clamping seats 2, and then the guide block 201 and the corresponding butt joint seat 202 are located in the same plane, so that the adjacent two groups of clamping seats 2 can be quickly adjusted and spliced by the butt joint mechanism, and the splicing efficiency is improved.

[0023] Further, the receiving part 203 is provided with a rotating shaft 401 on one side away from the limiting column 4, the clamping rod 402 is rotationally connected with the rotating shaft 401, the outer circumferential surface of the limiting column 4, the outer circumferential surface of the rotating shaft 401 and the inner wall of the clamping interface 403 are all provided with rubber pads, so that the friction is increased, and the clamping rod 402 is prevented from being easily separated or slipping.

[0024] In the embodiment, the clamping groove 204 is attached to the mounting rail, and the clamping seat 2 is pressed towards the mounting rail, when the two groups of abutting blocks 301 meet the mounting rail, the abutting blocks 301 are pressed into the mounting groove, so that the third elastic member 3 is compressed, and the clamping groove 204 and the mounting rail are further improved in clamping tightness, and the clamping seat 2 is prevented from being easily separated, and the installation of the fuse is completed.

[0025] When a plurality of fuses are connected to form a fuse group, the clamping rod 402 on one of the clamping seats 2 is rotated towards the limiting column 4 on the other clamping seat 2 until the clamping interface 403 on the clamping rod 402 is clamped with the limiting column 4, and since the outer circumferential surface of the limiting column 4, the outer circumferential surface of the rotating shaft 401 and the inner wall of the clamping interface 403 are all provided with rubber pads, the connecting portions have a certain friction, and the clamping rod 402 is prevented from being separated or slipping under the action of external force, so that the two adjacent clamping seats 2 are connected, the two adjacent bases 1 are connected, and the clamping seat 2 at the back of the base 1 is clamped with the mounting rail, and in this way, the plurality of fuses can be quickly connected according to the needs, and the connection stability is high.

[0026] Embodiment two

[0027] As shown in Figure 1 and Figure 2 , the fuse for weak current engineering provided by the utility model, compared with embodiment one, the top end of base 1 is provided with through port 101, the bottom end of base 1 is hingedly connected with cover plate 102, the upper end of cover plate 102 is provided with limiting assembly, limiting assembly includes installation port 103, adjusting seat 105 and first elastic member 104, installation port 103 is arranged on cover plate 102, adjusting seat 105 is slidably connected with installation port 103, adjusting seat 105 is C-shaped, one end of adjusting seat 105 extends to the outside of installation port 103, the other end extends to the inside of installation port 103 and is inserted with through port 101, one end of first elastic member 104 is installed at the bottom end of installation port 103, the other end is connected with adjusting seat 105, and first elastic member 104 is provided as spring.

[0028] Further, a plurality of second elastic members 107 are arranged inside the cover plate 102, the second elastic members 107 are spring rods, the other ends of the plurality of second elastic members 107 are connected with the abutting seats 106, the other side wall of the base 1 inside and opposite to the cover plate 102 is also provided with another set of abutting seats 106 and second elastic members 107, the two sets of abutting seats 106 abut against the side wall of the fuse body in the fuse core assembly, through the self-adjustment of the second elastic members 107, the two sets of abutting seats 106 can further limit the fuse body and improve the installation stability.

[0029] In the embodiment, the cover plate 102 is rotated upward along the bottom end of the base 1, and the adjusting seat 105 is slid along the mounting opening 103 so that the first elastic member 104 is compressed until the cover plate 102 is closed with the open end of the base 1, then the adjusting seat 105 is released, under the elastic recovery of the first elastic member 104, the adjusting seat 105 is slid upward along the mounting opening 103 until the end of the adjusting seat 105 is inserted into the through opening 101, and then the cover plate 102 is fixed with the base 1, and the fuse core assembly inside the base 1 is protected by the cover plate 102.

[0030] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, within the knowledge range of the technical personnel in the technical field, various changes can be made without departing from the purpose of the utility model.

Claims

1. A fuse for low voltage electrical engineering, characterized in that The utility model relates to a core assembly device for a fuse, which comprises a base (1) internally provided with a core assembly; a clamping seat (2) mounted on the rear side wall of the base (1) by means of bolts, the clamping seat (2) being provided with a clamping groove (204) on the top end thereof for clamping connection with an external mounting guide rail, and the clamping seat (2) being provided with a receiving part (203) on the top end thereof; and a docking mechanism provided on the receiving part (203), the docking mechanism comprising a limiting column (4) mounted on one side of the receiving part (203); and a clamping rod (402) rotationally connected to the other side of the receiving part (203), the other end of the clamping rod (402) being provided with a clamping port (403) corresponding to the limiting column (4).

2. The fuse according to claim 1, wherein The top end of the base (1) is provided with a through opening (101), and the bottom end of the base (1) is hingedly connected with a cover plate (102), the upper end of the cover plate (102) being provided with a limiting assembly, the limiting assembly comprising a mounting port (103) provided on the cover plate (102); an adjusting seat (105) slidingly connected to the mounting port (103), the adjusting seat (105) being in a C shape, one end of the adjusting seat (105) extending to the outside of the mounting port (103), and the other end of the adjusting seat (105) extending to the inside of the mounting port (103) and being inserted into the through opening (101); and a first elastic member (104) having one end mounted on the bottom end of the mounting port (103) and the other end connected to the adjusting seat (105).

3. The fuse according to claim 2, wherein The inside of the cover plate (102) is provided with a plurality of groups of second elastic members (107), the other ends of the second elastic members (107) being mounted with an abutting seat (106), and the side wall of the base (1) opposite to the cover plate (102) is also provided with another group of abutting seats (106) and second elastic members (107), the two groups of abutting seats (106) abutting against the side wall of a fuse body in the core assembly.

4. The fuse according to claim 1, wherein The clamping seat (2) is symmetrically provided with two groups of fastening assemblies, the fastening assemblies being composed of third elastic members (3) and abutting blocks (301), the top end and the bottom end of the clamping groove (204) on the clamping seat (2) being provided with mounting grooves, the third elastic members (3) being mounted in the mounting grooves, and the other ends of the third elastic members (3) being mounted with the abutting blocks (301), the abutting blocks (301) being slidingly connected to the mounting grooves.

5. The fuse according to claim 1, wherein The clamping seat (2) is provided with a positioning assembly, the positioning assembly being composed of a guide block (201) mounted on one side wall of the clamping seat (2) and a docking seat (202) mounted on the other side wall of the clamping seat (2), the guide block (201) corresponding to the docking seat (202).

6. The fuse according to claim 1, wherein The receiving part (203) is provided with a rotating shaft (401) on the side away from the limiting column (4), the clamping rod (402) being rotationally connected to the rotating shaft (401), and the outer circumferential surface of the limiting column (4), the outer circumferential surface of the rotating shaft (401) and the inner wall of the clamping port (403) all being provided with rubber pads.

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