CN215008127U

CN215008127U - Power supply circuit protection device

Info

Publication number: CN215008127U
Application number: CN202121195981.1U
Authority: CN
Inventors: 鲁声豪
Original assignee: Nanjing Ruikong Electric Co ltd
Current assignee: Nanjing Ruikong Electric Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-03
Anticipated expiration: 2031-05-31

Abstract

The utility model provides a power supply circuit protection device, including the fuse seat, the top of fuse seat is provided with a storehouse, it has the apron to articulate to push up the inside one side in storehouse, the intermediate position department of apron one side is provided with spacing notch, the inside cover of spacing notch is equipped with stop sleeve, stop sleeve's inside cover is equipped with the fuse core, the inside one side of stop notch is provided with spring C, and spring C's one end is connected with one side of stop sleeve. The utility model provides a power supply circuit protection device passes through the dead lever cancellation and fixes the back to the apron, utilizes spring A's resilience force to make the apron lift up automatically, and rethread spring C's elasticity is automatic ejecting with spacing sleeve and fuse core to the convenience takes out the fuse core and changes, and simple structure convenient operation saves trouble laborsavingly, reduces operating personnel's the change degree of difficulty, and then improves operating personnel's work efficiency.

Description

Power supply circuit protection device

Technical Field

The utility model relates to a power supply circuit protects technical field, especially relates to a power supply circuit protection device.

Background

The circuit protection mainly protects components in an electronic circuit from being damaged under the conditions of overvoltage, overcurrent, surge, electromagnetic interference and the like, a circuit protection device is needed in the circuit of each electric device for preventing the overload of a lead or electric equipment in the circuit, when the current in the circuit exceeds a specified value, the circuit can be automatically cut off by the protection device, the lead and the electric equipment in the circuit are prevented from being burnt, and a common circuit protection device comprises a fuse and an interrupter.

The existing fuse device has the following defects when in use, and at first, the existing fuse needs to be disassembled through an universal meter or observed for damage of the internal fuse core, so that the operation is time-consuming and labor-consuming, and meanwhile, when the fuse core is replaced, the fuse core in the fuse seat needs to be manually taken with hands, and the space in the fuse is narrow and small, so that the fuse device is inconvenient to take and replace, and further the practicability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a power supply circuit protection device has solved the judgement whether current fuse damages its inside fuse core, need through the universal meter or unpack apart and take off the observation, and the operation is inconvenient to waste time and energy, and current fuse is when changing the fuse core simultaneously, needs the manual work to remove the fuse core that is in fuse seat inside with the hand, and the fuse inner space is narrow and small, is not convenient for draw and changes, and then leads to the relatively poor problem of practicality.

In order to solve the technical problems, the power circuit protection device provided by the utility model comprises a fuse holder, wherein the top of the fuse holder is provided with a top bin, one side inside the top bin is hinged with a cover plate, the middle position of one side of the cover plate is provided with a limit notch, the inside of the limit notch is sleeved with a limit sleeve, the inside of the limit sleeve is sleeved with a fuse core, one side inside the limit notch is provided with a spring C, one end of the spring C is connected with one side of the limit sleeve, the middle position of the top of the limit sleeve is provided with a jack, the middle position of the top of the cover plate is provided with a limit component, the middle position of one side of the top bin is provided with a fixing component, the middle position of one side of the bottom in the fuse holder is provided with a slide rail, the inside of the slide rail is provided with a slide block, the top of the slide block is hinged with a connecting rod, and the one end that the connecting rod kept away from the slider is articulated with the bottom of apron, through rotating the annular nest block on the slide bar, make the dead lever remove from the top of apron, cancel and fix the apron, the resilience force of spring A drives the slider and slides in the slide rail through mount pad A, make the contained angle between connecting rod and the apron bottom change simultaneously, and then make the apron bounce automatically, then drive spacing sleeve and shift out from the spacing notch at the elasticity that passes through spring C, thereby be convenient for take out the fuse core and change, then the spacing sleeve of pushback and press the inserted bar, make the dog drive spring B compression, make the inserted bar insert in the jack simultaneously and fix spacing sleeve and restrict spring C, then will lap in pushing back the storehouse, and rotate the dead lever and carry out spacing fixed above the apron.

Preferably, spacing subassembly is including installing the storehouse, the intermediate position department of installation storehouse top and bottom is provided with the inserted bar, the inserted bar runs through the installation storehouse, and inside the one end of inserted bar extended to the jack, the inserted bar is located the inside outside in installation storehouse and is provided with the dog, the outside cover that the inserted bar is located the installation storehouse is equipped with spring B.

Preferably, the fixing assembly comprises a mounting seat B, a sliding rod is arranged at the top of the mounting seat B, an annular sleeve block is sleeved on the outer side of the sliding rod, a fixing rod is arranged on one side of the annular sleeve block, and the fixing rod is located above the cover plate.

Preferably, the middle position of the bottom in the fuse seat is provided with an installation seat A, one side of the installation seat A is provided with a spring A, and one end of the spring A is connected with one side of the connecting rod.

Preferably, the top of the two ends of the fuse holder is provided with an observation port A, and the two ends of the cover plate are provided with observation ports B.

Preferably, the top of inserted bar is provided with circular button, and the top of circular button is provided with the rubber pad.

Compared with the prior art, the beneficial effects of the utility model are that:

1. fixed back to the apron through the dead lever cancellation, utilize spring A's resilience force to make the apron lift up automatically, spacing sleeve and fuse core are ejecting automatically to rethread spring C's elasticity to the convenience is taken out the fuse core and is changed, and simple structure convenient operation saves trouble laborsavingly, reduces operating personnel's the change degree of difficulty, and then improves operating personnel's work efficiency.

2. The observation ports A and the observation ports B are arranged on the two sides of the cover plate, so that the fuse device can observe the condition of the fuse core in the limiting sleeve without disassembly, the universal meter is not required to be used or the fuse core is disassembled to be taken down for observation, the working efficiency of the detection circuit is improved, and the practicability of the fuse device is further improved.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a power circuit protection device according to the present invention;

FIG. 2 is a perspective cross-sectional view of FIG. 1;

FIG. 3 is a perspective cross-sectional view of the cover plate shown in FIG. 1;

fig. 4 is an enlarged view of the portion a shown in fig. 2.

Reference numbers in the figures: 1. a fuse holder; 2. carrying out top bin; 3. an observation port A; 4. installing a bin; 5. fixing the rod; 6. a cover plate; 7. an observation port B; 8. a fuse core; 9. a limiting sleeve; 10. a slider; 11. a connecting rod; 12. a spring A; 13. a slide rail; 14. a mounting seat A; 15. inserting a rod; 16. a stopper; 17. a jack; 18. a spring B; 19. a limiting notch; 20. a spring C; 21. a mounting seat B; 22. an annular sleeve block; 23. a slide bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Please refer to fig. 1-4. A power circuit protection device comprises a fuse holder 1, a top bin 2 is arranged at the top of the fuse holder 1, a cover plate 6 is hinged at one side inside the top bin 2, a limit notch 19 is arranged at the middle position of one side of the cover plate 6, a limit sleeve 9 is sleeved inside the limit notch 19, a fuse core 8 is sleeved inside the limit sleeve 9, a spring C20 is arranged at one side inside the limit notch 19, one end of a spring C20 is connected with one side of the limit sleeve 9, a jack 17 is arranged at the middle position of the top of the limit sleeve 9 to play a role in limiting and fixing, a limit component is arranged at the middle position of the top of the cover plate 6, a fixing component is arranged at the middle position of one side of the top bin 2, a slide rail 13 is arranged at the middle position of one side of the bottom inside the fuse holder 1, a slide block 10 is arranged inside the slide rail 13, and a connecting rod 11 is hinged at the top of the slide block 10 to play a role in connecting and jacking, one end of the connecting rod 11 far away from the sliding block 10 is hinged with the bottom of the cover plate 6;

the limiting assembly comprises an installation bin 4, an inserting rod 15 is arranged in the middle of the top and the bottom of the installation bin 4, the inserting rod 15 penetrates through the installation bin 4, one end of the inserting rod 15 extends into an insertion hole 17, a stop block 16 is arranged on the outer side of the inserting rod 15 in the installation bin 4, a spring B18 is sleeved on the outer side of the inserting rod 15 in the installation bin 4, the fixing assembly comprises an installation seat B21, a sliding rod 23 is arranged at the top of the installation seat B21, an annular sleeve block 22 is sleeved on the outer side of the sliding rod 23, a fixing rod 5 is arranged on one side of the annular sleeve block 22, the fixing rod 5 is located above a cover plate 6, an installation seat A14 is arranged in the middle of the bottom in a fuse seat 1, a spring A12 is arranged on one side of the installation seat A14, one end of the spring A12 is connected with one side of a connecting rod 11, after the fixing of the cover plate 6 is cancelled through the fixing rod 5, the cover plate 6 is automatically lifted by the resilience force of the spring A12, the limiting sleeve 9 and the fuse core 8 are automatically ejected out by the elasticity of the spring C20, so that the fuse core 8 is convenient to take out and replace, the structure is simple, the operation is convenient, the trouble and the labor are saved, the replacement difficulty of operators is reduced, further improving the working efficiency of operators, the top parts of the two ends of the fuse holder 1 are provided with observation ports A3, the two ends of the cover plate 6 are provided with observation ports B7, by providing the view ports a3 on both sides of the fuse holder 1 and the view ports B7 on both sides of the cover 6, the device does not need to be disassembled, the condition of the fuse core 8 in the limiting sleeve 9 can be observed, the universal meter is not required to be used for detaching or taking down the fuse core for observation, the working efficiency during detection of the circuit is improved, the practicability of the device is further improved, the top of the inserting rod 15 is provided with a round button, the inserting rod is convenient to press, the top of the round button is provided with a rubber pad, and the protection effect is achieved.

The utility model provides a power supply circuit protection device's theory of operation as follows: through rotating annular sleeve block 22 on slide bar 23, make dead lever 5 remove from the top of apron 6, cancel and fix apron 6, the resilience force of spring A12 drives slider 10 and slides in slide rail 13 on mount pad A14, make the contained angle between connecting rod 11 and the apron 6 bottom change simultaneously, and then make apron 6 bounce automatically, then drive spacing sleeve 9 and shift out from spacing notch 19 through the elasticity of spring C20, thereby be convenient for take out fuse core 8 and change, then push back spacing sleeve 9 and press and move inserted bar 15, make dog 16 drive spring B18 compression, make inserted bar 15 insert in jack 17 simultaneously and fix spacing sleeve 9 and restrict spring C20, then push back apron 6 in storehouse 2, and rotate dead lever 5 and carry out spacing fixing to apron 6 top.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A power supply circuit protection device comprises a fuse holder (1) and is characterized in that a top bin (2) is arranged at the top of the fuse holder (1), a cover plate (6) is hinged to one side of the interior of the top bin (2), a limiting notch (19) is formed in the middle position of one side of the cover plate (6), a limiting sleeve (9) is sleeved inside the limiting notch (19), a fuse core (8) is sleeved inside the limiting sleeve (9), a spring C (20) is arranged on one side of the interior of the limiting notch (19), one end of the spring C (20) is connected with one side of the limiting sleeve (9), a jack (17) is formed in the middle position of the top of the limiting sleeve (9), a limiting assembly is arranged in the middle position of the top of the cover plate (6), and a fixing assembly is arranged in the middle position of one side of the top bin (2), the fuse holder is characterized in that a sliding rail (13) is arranged in the middle of one side of the bottom in the fuse holder (1), a sliding block (10) is arranged inside the sliding rail (13), a connecting rod (11) is hinged to the top of the sliding block (10), and one end, far away from the sliding block (10), of the connecting rod (11) is hinged to the bottom of the cover plate (6).

2. The power supply circuit protection device according to claim 1, wherein the limiting assembly comprises an installation bin (4), an inserting rod (15) is arranged at the middle position of the top and the bottom of the installation bin (4), the inserting rod (15) penetrates through the installation bin (4), one end of the inserting rod (15) extends into the insertion hole (17), a stop block (16) is arranged on the outer side of the inserting rod (15) located inside the installation bin (4), and a spring B (18) is sleeved on the outer side of the inserting rod (15) located inside the installation bin (4).

3. The power supply circuit protection device according to claim 1, wherein the fixing component comprises a mounting seat B (21), a sliding rod (23) is arranged at the top of the mounting seat B (21), an annular sleeve block (22) is sleeved on the outer side of the sliding rod (23), a fixing rod (5) is arranged on one side of the annular sleeve block (22), and the fixing rod (5) is positioned above the cover plate (6).

4. A power supply circuit protection device according to claim 1, characterized in that a mounting seat a (14) is provided at a middle position of an inner bottom of the fuse holder (1), a spring a (12) is provided at one side of the mounting seat a (14), and one end of the spring a (12) is connected to one side of the connecting rod (11).

5. A power supply circuit protection device according to claim 1, characterized in that the top of both ends of the fuse holder (1) is provided with a viewing port a (3), and both ends of the cover plate (6) are provided with viewing ports B (7).

6. A power supply circuit protection device according to claim 2, characterized in that the top of the plunger (15) is provided with a circular button, and the top of the circular button is provided with a rubber pad.