CN209929208U

CN209929208U - Fuse type isolating switch

Info

Publication number: CN209929208U
Application number: CN201920405192.2U
Authority: CN
Inventors: 曹旭; 周士博; 朱旭东; 张浩翔
Original assignee: DALIXI GROUP Co Ltd
Current assignee: DALIXI GROUP Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-01-10
Anticipated expiration: 2029-03-28

Abstract

The utility model discloses a fuse type isolating switch, which comprises a switch body, an insulating base, a connecting plate, a clamping plate and a spring; the switch body is fixed on the upper part of the insulating base, a 7-shaped hooking platform is formed on the outer bottom surface of the insulating base, a concave cavity is formed on the inner side of the 7-shaped hooking platform, and a through hole is formed in the insulating base at a position opposite to the 7-shaped hooking platform; the clamping plate comprises a fixed part fixed in the concave cavity and a positioning part positioned at the through hole; the connecting plate is fixed on the upper portion of the insulating base, a first electric connection end and a second electric connection end are arranged at two ends of the connecting plate respectively, the first electric connection end is connected with a wire inlet end of the switch body, the second electric connection end is located in the through hole, the spring is arranged between the positioning portion and the second electric connection end, and in a normal state, under the action of the spring, a conductive surface on the outer side of the second electric connection end protrudes out of the outer bottom surface of the insulating base. The utility model provides a rational in infrastructure, installation and dismantlement convenient operation.

Description

Fuse type isolating switch

Technical Field

The utility model relates to an isolator, concretely relates to fuse formula isolator.

Background

Patent document CN206134586U discloses a fuse formula isolator for female installation of arranging, including base assembly and latch device, wherein, latch device sets up on base assembly, and latch device includes insulating housing, arc clamp plate and is used for driving arc clamp plate and rotates the threaded fastener who compresses tightly female arranging, and arc clamp plate and threaded fastener all set up in insulating housing, and insulating housing's opening tip is equipped with the joint arch that is used for with base assembly joint, and insulating housing both sides relatively all are equipped with the joint arch. In the fuse formula isolator of above-mentioned patent document, be connected latch device and base assembly through the joint arch, drive the arc clamp plate through threaded fastener and rotate, and then realize being connected with female arranging, hookup location is stable, realizes fuse formula isolator and female reliable hanging of arranging. The fuse type disconnecting switch in the above patent document has a problem that after the fuse type disconnecting switch is fixed to the busbar, it is necessary to electrically connect the fuse type disconnecting switch and the busbar by using a conductive member separately, which is not favorable for improving the working efficiency.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at providing a fuse formula isolator rational in infrastructure adopts this structure to accomplish the electricity and connect in the installation, is favorable to improving work efficiency.

Realize the utility model discloses the technical scheme of purpose is:

a fuse type isolating switch comprises a switch body, an insulating base, a connecting plate, a clamping plate and a spring; the switch body is fixed on the upper part of an insulating base, a 7-shaped hooking platform suitable for being hooked and connected with a busbar is formed on the outer bottom surface of the insulating base, a concave cavity is formed in the inner side of the 7-shaped hooking platform, and a through hole is formed in the insulating base at a position opposite to the 7-shaped hooking platform; the clamping plate is formed in an integral punching mode and comprises a fixing part fixed in the concave cavity and a positioning part extending into the insulating base from the through hole; the connecting plate is fixed on the upper portion of the insulating base, a first electric connection end and a second electric connection end are arranged at two ends of the connecting plate respectively, the first electric connection end is connected with an incoming line end of the switch body, the second electric connection end is located in the through hole, the spring is arranged between the positioning portion and the second electric connection end, the spring has a tendency that the second electric connection end is far away from the positioning portion and deforms, and in a normal state, a conductive surface on the outer side of the second electric connection end protrudes out of the outer bottom surface of the insulating base under the action of the spring.

In the technical scheme, the fixing part is provided with a first clamping structure in a forming mode, and the concave cavity is internally provided with a second clamping structure matched with the first clamping structure in a forming mode.

In the above technical scheme, the first clamping structure is a clamping table or a clamping groove, and correspondingly, the second clamping structure is a clamping groove or a clamping table.

In the technical scheme, the first electric connecting end is bent into an L shape, and a groove is formed in the tail end of the first electric connecting end.

In the technical scheme, the bottom of the insulating base is provided with a limiting structure for limiting a busbar in the 7-shaped hooking platform; the limiting structure comprises a limiting seat movably mounted on the insulating base, the limiting seat is provided with a resisting boss which is suitable for abutting against the busbar, an elastic lock catch is integrally formed on the limiting seat, a lock platform is arranged on the elastic lock catch, lock grooves are formed in the insulating base at intervals in the movable direction of the limiting seat, the lock platform is matched with the lock grooves in the corresponding positions to lock the limiting seat, and the elastic lock catch is pressed to enable the lock platform to exit the lock grooves, so that the lock is released.

In the above technical scheme, the tail end of the elastic lock catch is provided with the pressing part.

The utility model discloses has positive effect: adopt the utility model provides a structure, when installing this fuse formula isolator, through each on the insulator foot 7 font colludes the platform and corresponds to articulate the hooking installation of realizing fuse formula isolator on corresponding female arranging mutually, and under the spring action of spring electrically conductive face with female side in close contact with of arranging to reliable connect the second to connect the electrical end and arrange the electricity to be connected, improved the convenience of fuse formula isolator installation and dismantlement from this.

Drawings

Fig. 1 is a perspective view of a medium fuse type disconnecting switch according to the present invention;

FIG. 2 is a rear view of the fused disconnect switch of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a side view of the fused disconnect switch of FIG. 1;

FIG. 5 is a front view of the fused disconnect switch of FIG. 1 with the switch body removed;

FIG. 6 is a perspective view of the fused disconnect switch of FIG. 1 with the switch body removed;

fig. 7 is a schematic structural view of the insulating base of the present invention;

fig. 8 is a schematic structural view of a middle position limiting seat of the present invention;

fig. 9 is a schematic structural view of the middle connection plate of the present invention;

FIG. 10 is a front view of the clamping plate of the present invention;

FIG. 11 is a right side view of the card of FIG. 10;

FIG. 12 is a perspective view of the card of FIG. 10;

fig. 13 is a schematic structural view of the middle clip plate of the present invention when being engaged with the connecting plate.

The reference symbols shown in the figures are: 1-a switch body; 2-an insulating base; a 21-7-shaped hooking platform; 22-a lock groove; 3-connecting the plates; 31-a first electrical connection terminal; 32-a second electric connection end; 321-a conductive surface; 33-a groove; 4-clamping plate; 41-a fixed part; 42-a positioning section; 5-a spring; 6-bus bar; 7-clamping table; 8-a limiting seat; 80-resisting the boss; 81-elastic lock catch; 82-locking the platform; 83-a pressing part; 9-a card slot; 10-a wiring bolt; 11-conductive plate.

Detailed Description

The specific structure of the present invention is described below with reference to the attached drawings:

a fuse type disconnecting switch is shown in the figure and comprises a switch body 1, an insulating base 2, a connecting plate 3, a clamping plate 4 and a spring 5; the switch body 1 is fixed on the upper part of an insulating base 2, a 7-shaped hooking platform 21 suitable for being hooked and connected with a bus bar 6 is formed on the outer bottom surface of the insulating base 2, a concave cavity is formed in the inner side of the 7-shaped hooking platform 21, and a through hole is formed in the insulating base 2 in a position opposite to the 7-shaped hooking platform 21; the clamping plate 4 comprises a fixing part 41 fixed in the concave cavity and a positioning part 42 extending into the insulating base 2 from the through hole; the connecting plate 3 is fixed on the upper portion of the insulating base 2, a first electric connection end 31 and a second electric connection end 32 are respectively arranged at two ends of the connecting plate 3, the first electric connection end 31 is connected with an incoming line end of the switch body 1, the second electric connection end 32 is located in the through hole, the spring 5 is arranged between the positioning portion 42 and the second electric connection end 32, the spring 5 has a tendency that the second electric connection end 32 is far away from the positioning portion 42 and deforms, and in a normal state, a conductive surface 321 on the outer side of the second electric connection end 32 protrudes out of the outer bottom surface of the insulating base 2 under the action of the spring 5. By adopting the structure in the embodiment, when the fuse type isolating switch is installed, the 7-shaped hook table 21 is hung on the corresponding phase busbar 6 through each on the insulating base 2 to realize the hook installation of the fuse type isolating switch, namely, the busbar 6 is positioned in the 7-shaped hook table, the conductive surface 321 is in close contact with the side surface of the busbar 6 under the elastic action of the spring 5, so that the second electric connection end 32 is reliably electrically connected with the busbar 6, and the installation and disassembly convenience of the fuse type isolating switch is improved.

In this embodiment, the shaping has first joint structure on the fixed part 41, the shaping have in the cavity with first joint structure complex second joint structure, through first joint structure and the cooperation of second joint structure with fixed part 41 with in the cavity, it is specific, first joint structure is card platform 7 or draw-in groove 9, it is corresponding, second joint structure is draw-in groove 9 or card platform 7.

In this embodiment, first electrical connection end 31 is buckled into the L type to be equipped with recess 33 at the end, adopt this kind of structure make things convenient for fuse-type isolator's inlet wire end (the inlet wire end has current board 11 and binding bolt 10) with the connection of first electrical connection end 31 specifically inserts first electrical connection end 31 at the inlet wire end, and dodge through recess 33 binding bolt 10, thereby compress tightly first electrical connection end 31 on current board 11 through screwing up binding bolt 10.

As a further improvement of the above embodiment, in order to further reliably mount the fuse type disconnecting switch on the busbar 6, a limiting structure for limiting the busbar 6 in the 7-shaped hooking platform is arranged at the bottom of the insulating base 2; the limiting structure comprises a limiting seat 8 movably installed on the insulating base 2, the limiting seat 8 is provided with a resisting boss 80 which is suitable for abutting against the busbar 6, an elastic lock catch 81 is integrally formed on the limiting seat 8, a lock platform 82 is arranged on the elastic lock catch 81, lock grooves 22 are formed in the insulating base 2 at intervals in the movable direction of the limiting seat 8, the lock platform 82 is matched with the lock grooves 22 in the corresponding position to lock the limiting seat 8, and the elastic lock catch 81 is pressed to enable the lock platform 82 to withdraw from the lock grooves 22 so as to release locking.

Still further, the tail end of the elastic lock catch 81 is provided with a pressing part 83, and during unlocking operation, the pressing part 83 is pressed by a finger to enable the elastic lock catch 81 to deform inwards, so that the position of the lock platform 82 is changed and the lock platform exits from the lock groove 22 to realize unlocking.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.

Claims

1. A fuse type isolating switch is characterized by comprising a switch body (1), an insulating base (2), a connecting plate (3), a clamping plate (4) and a spring (5); the switch body (1) is fixed on the upper portion of an insulating base (2), a 7-shaped hooking platform (21) suitable for being hooked and connected with a busbar (6) is formed on the outer bottom surface of the insulating base (2), a concave cavity is formed in the inner side of the 7-shaped hooking platform (21), and a through hole is formed in the insulating base (2) in a position opposite to the 7-shaped hooking platform (21); the clamping plate (4) comprises a fixing part (41) fixed in the concave cavity and a positioning part (42) extending into the insulating base (2) from the through hole; the connecting plate (3) is fixed on the upper portion of the insulating base (2), a first electric connection end (31) and a second electric connection end (32) are respectively arranged at two ends of the connecting plate (3), the first electric connection end (31) is connected with an incoming line end of the switch body (1), the second electric connection end (32) is located in the through hole, the spring (5) is arranged between the positioning portion (42) and the second electric connection end (32), the spring (5) has a tendency that the second electric connection end (32) is far away from the deformation of the positioning portion (42) in the direction, and a conductive surface (321) on the outer side of the second electric connection end (32) protrudes out of the outer bottom surface of the insulating base (2) under the action of the spring (5) in a normal state.

2. A fused disconnect switch in accordance with claim 1 wherein the securing portion (41) has a first snap-fit formation formed thereon and the cavity has a second snap-fit formation formed therein which cooperates with the first snap-fit formation.

3. A fused disconnect switch as defined in claim 2 wherein the first snap-in structure is a catch (7) or a catch (9) and correspondingly the second snap-in structure is a catch (9) or a catch (7).

4. A fused disconnector according to claim 1, characterized in that the first electrical terminals (31) are bent into an L-shape and provided with recesses (33) at the ends.

5. A fuse-type disconnector according to claim 1, characterized in that a limiting structure is provided at the bottom of the insulating base (2) for limiting the busbar (6) within the 7-shaped hooking platform (21); limiting structure includes the movable mounting spacing seat (8) on insulating base (2), spacing seat (8) have be suitable for with female the keeping out boss (80) that row (6) offset, integrated into one piece has elastic hasp (81) on spacing seat (8), be equipped with on elastic hasp (81) and lock platform (82), insulating base (2) are gone up the interval is provided with locked groove (22) on the portable direction of spacing seat (8), lock platform (82) will with the locked groove (22) cooperation of relevant position spacing seat (8) locking is pressed elasticity hasp (81) makes lock platform (82) withdraw from thereby locked groove (22) are relieved and are locked.

6. A fused disconnect switch as defined in claim 5 wherein the distal end of the resilient latch (81) is provided with a press (83).