Expulsion fuse

Abstract

The utility model relates to the technical field of fuses, and discloses a jet fuse which comprises a plurality of fuse bodies, one side of each fuse body is provided with a fire extinguishing mechanism, each fire extinguishing mechanism comprises a branch pipe, an output pipe, a fire extinguishing dry powder storage box, a pneumatic pump and a spray head, and one side of the top end of each fire extinguishing dry powder storage box is fixedly connected with a feeding pipe. According to the utility model, through the arrangement of the fire extinguishing mechanism, when the fuse body is on fire, the audible and visual alarm detects temperature rise and gives an alarm to remind passing personnel to notice that smoke is generated when the fuse body is on fire, and the pneumatic pump is started after the smoke sensing switch detects the smoke, so that the fire extinguishing mechanism can extinguish the fire. The pneumatic pump pumps out dry powder in the fire extinguishing dry powder storage box, so that the dry powder with impact force is fed into the branch pipe, then the dry powder is sprayed out from the multiple spray heads to extinguish the ignition position of the fuse body, the automatic fire extinguishing effect can be achieved, the fire behavior is extinguished in time, and harm is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fuses, in particular to a jet fuse. Background Art

[0002] The ejection type fuse is a new type of high-voltage fuse, which is mainly used in the urban and rural power transmission and distribution systems of the power industry. It has a full-range protection function and can protect against overload and circuit breaker faults. The ejection type fuse is an updated product of the traditional drop-type high-voltage fuse.

[0003] In the announcement number "CN207199559U", a "jet fuse" is disclosed. This application solves the problem of explosion caused by high-voltage arc breaking through the porcelain sleeve in the existing fuse. In practice, some fuses are prone to fire when they fail. For fuses used outdoors, it is not easy to attract attention when a fire occurs. In addition, for some fuses used outdoors, when the fuse is disconnected, the fuse will pop out, and the bottom end of the fuse will push out the sealed plug. The weather outdoors is relatively bad, and the pushed-out sealing plug is easy to be lost. When the user replaces the new fuse and installs the fuse back, the bottom of the fuse body has no sealing plug, which may reduce the safety effect and easily damage the fuse. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a jet fuse, which solves the problems that the fuse has no automatic fire extinguishing function when a fire occurs and the sealing plug is easily lost.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a jet fuse, including multiple fuse bodies, one side of the multiple fuse bodies is provided with a fire extinguishing mechanism, the fire extinguishing mechanism includes a branch pipe, an output pipe, a fire extinguishing dry powder storage box, a pneumatic pump and a nozzle, one side of the top of the fire extinguishing dry powder storage box is fixedly connected with a feed pipe, the top of the fire extinguishing dry powder storage box is fixedly connected with an input pipe, the top of the input pipe is fixedly connected with a pneumatic pump, and the output end of the pneumatic pump is fixedly connected with an output pipe.

[0006] Preferably, one end of the output pipe is fixedly connected to a branch pipe, one side of the branch pipe is fixedly connected to a plurality of nozzles, one side of the middle part of the fire extinguishing dry powder storage box is fixedly connected to a smoke switch, the other side of the middle part of the fire extinguishing dry powder storage box is fixedly connected to a sound and light alarm, and the smoke switch is electrically connected to the pneumatic pump and the sound and light alarm.

[0007] Preferably, a mounting plate is provided on the other side of the plurality of fuse bodies, and two L-shaped fixing rods are fixedly connected to the bottom end of the mounting plate, and one end of the two L-shaped fixing rods is fixedly connected to a side wall of the fire extinguishing dry powder storage box.

[0008] Preferably, the top ends of the plurality of fuse bodies are fixedly connected with lead-in wires.

[0009] Preferably, the bottom of one side wall of each of the plurality of fuse bodies is fixedly connected with a lead wire, and a fuse-carrying tube is disposed inside each of the plurality of fuse bodies.

[0010] Preferably, a fuse protection mechanism is provided at the bottom of each of the plurality of fuse bodies, and the fuse protection mechanism comprises a protection seat, a semicircular sealing plate and a damping spring, and the inner wall of the protection seat is rotatably connected to two semicircular sealing plates.

[0011] Preferably, the bottom ends of the two semicircular sealing plates are fixedly connected to damping springs, and the bottom ends of the two damping springs are fixedly connected to two sides of the inner wall of the protective seat.

[0012] Preferably, the top end of the protective seat is fixedly connected to the bottom end of the fuse body.

[0013] Beneficial Effects

[0014] The utility model provides a jet fuse. Compared with the prior art, it has the following beneficial effects:

[0015] 1. In the utility model, through the fire extinguishing mechanism, the user pours the fire extinguishing dry powder from the feed pipe into the fire extinguishing dry powder storage box in advance. When the fuse body catches fire, the sound and light alarm detects the temperature rise and issues an alarm to remind passers-by to pay attention. Smoke is generated during the fire. After the smoke sensor detects the smoke, the pneumatic pump is started. The pneumatic pump extracts the dry powder in the fire extinguishing dry powder storage box, so that the dry powder with impact force is sent into the branch pipe, and then the dry powder is sprayed from multiple nozzles to extinguish the fire on the fuse body, so as to achieve the effect of automatic fire extinguishing, put out the fire in time and reduce the harm;

[0016] 2. In the utility model, by providing a fuse protection mechanism, when the fuse in the jet fuse is disconnected, the fuse-carrying tube will pop out from the bottom of the fuse body, and the bottom end of the fuse-carrying tube squeezes the two semicircular sealing plates, so that the two semicircular sealing plates squeeze the two damping springs, so that one end of the fuse-carrying tube passes through the two semicircular sealing plates. Then the user takes out the fuse-carrying tube through the two semicircular sealing plates through the operating rod. At this time, the two semicircular sealing plates are no longer squeezed by one end of the fuse-carrying tube, and the two damping springs respectively drive the two semicircular sealing plates to reset, so that the semicircular sealing plates can be reused to avoid loss. Then the user can use the operating rod to take out the fuse-carrying tube and replace the fuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a jet fuse proposed by the utility model;

[0018] Figure 2 This is a front structural entity diagram of a jet fuse proposed by the utility model;

[0019] Figure 3 A schematic structural diagram of a fuse body of a jet fuse proposed by the utility model;

[0020] Figure 4 The utility model provides a jet fuse Figure 3 The structural diagram at A in the middle;

[0021] Figure 5 The utility model provides a structural schematic diagram of the fire extinguishing mechanism of the jet fuse.

[0022] Legend:

[0023] 1. Fuse body; 2. Lead-in wire; 3. Lead-out wire; 4. Fuse protection mechanism; 401. Protection seat; 402. Semicircular sealing plate; 403. Ni spring; 5. Fire extinguishing mechanism; 501. Branch pipe; 502. Output pipe; 503. Feed pipe; 504. Pneumatic pump; 505. Nozzle; 506. Input pipe; 507. Smoke switch; 508. Sound and light alarm; 509. Fire extinguishing dry powder storage box; 6. Mounting plate; 7. L-shaped fixing rod; 8. Melt tube. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-Figure 5 The utility model provides two technical solutions, which specifically include the following embodiments:

[0026] Embodiment 1:

[0027] A jet fuse comprises a plurality of fuse bodies 1, one side of which is provided with a fire extinguishing mechanism 5, the fire extinguishing mechanism 5 comprising a branch pipe 501, an output pipe 502, a fire extinguishing dry powder storage box 509, a pneumatic pump 504 and a nozzle 505, a feed pipe 503 is fixedly connected to one side of the top of the fire extinguishing dry powder storage box 509, an input pipe 506 is fixedly connected to the top of the fire extinguishing dry powder storage box 509, a pneumatic pump 504 is fixedly connected to the top of the input pipe 506, an output end of the pneumatic pump 504 is fixedly connected to the output pipe 502, a baffle can be installed at the top of the feed pipe 503 to prevent rainwater from entering the interior of the fire extinguishing dry powder storage box 509 along the feed pipe 503.

[0028] During operation, the user pours the fire extinguishing dry powder from the feed pipe 503 into the fire extinguishing dry powder storage box 509 in advance. When the fuse body 1 catches fire, the sound and light alarm 508 detects the temperature rise and sounds an alarm to remind passers-by to pay attention. Smoke is generated during the fire. The smoke sensor 507 detects the smoke and starts the pneumatic pump 504. The pneumatic pump 504 draws the dry powder in the fire extinguishing dry powder storage box 509, so that the dry powder with impact force is sent into the branch pipe 501, and then the dry powder is sprayed from multiple nozzles 505 to extinguish the fire in the fuse body 1, so as to achieve the effect of automatic fire extinguishing, put out the fire in time and reduce the harm.

[0029] Embodiment 2:

[0030] On the basis of the first embodiment, one end of the output pipe 502 is fixedly connected to the branch pipe 501, one side of the branch pipe 501 is fixedly connected to multiple nozzles 505, one side of the middle of the fire extinguishing dry powder storage box 509 is fixedly connected to a smoke switch 507, and the other side of the middle of the fire extinguishing dry powder storage box 509 is fixedly connected to an audible and visual alarm 508. The smoke switch 507 is electrically connected to the pneumatic pump 504 and the audible and visual alarm 508. The specific model of the smoke switch 507 is CI1003, and the audible and visual alarm 508 is fixedly connected to the pneumatic pump 504 and the audible and visual alarm 508. The specific model of the optical alarm 508 is yd-d3. A mounting plate 6 is provided on the other side of the multiple fuse bodies 1. Two L-shaped fixing rods 7 are fixedly connected to the bottom end of the mounting plate 6. One end of the two L-shaped fixing rods 7 is fixedly connected to a side wall of the fire extinguishing dry powder storage box 509. The tops of the multiple fuse bodies 1 are fixedly connected to the lead-in wires 2. The bottoms of the side walls of the multiple fuse bodies 1 are fixedly connected to the lead-out wires 3. The interiors of the multiple fuse bodies 1 are provided with fuse-carrying tubes 8. When the electric When an overload or short circuit occurs in the circuit, the current will increase rapidly, causing the contacts in the fuse body 1 to generate an arc. When the arc voltage reaches the rated voltage of the fuse tube 8, the fuse will be heated to melt, and the high-speed airflow in the fuse tube 8 will continue to act on the arc, causing it to gradually extinguish. It should be noted that the technical means for the fuse tube 8 to generate a high-speed airflow to achieve an arc extinguishing effect refers to the existing fuse ejector technical means. A fuse protection mechanism 4 is provided at the bottom of multiple fuse bodies 1. The fuse protection mechanism 4 includes a protection seat 401, a semicircular sealing plate 402 and a damping spring 403. The inner wall of the protection seat 401 is rotatably connected to two semicircular sealing plates 402. The bottom ends of the two semicircular sealing plates 402 are fixedly connected to damping springs 403. The bottom ends of the two damping springs 403 are fixedly connected to both sides of the inner wall of the protection seat 401. The top of the protection seat 401 is fixedly connected to the bottom end of the fuse body 1. The resistance of the damping spring 403 is less than the ejection force of the fuse tube 8.

[0031] When the fuse in the melt-carrying tube 8 is disconnected, the melt-carrying tube 8 will pop out from the bottom of the fuse body 1, and the bottom end of the melt-carrying tube 8 squeezes the two semicircular sealing plates 402, so that the two semicircular sealing plates 402 squeeze the two damping springs 403, so that one end of the melt-carrying tube 8 passes through the two semicircular sealing plates 402, and then the user takes out the melt-carrying tube 8 through the two semicircular sealing plates 402. At this time, the two semicircular sealing plates 402 are no longer squeezed by one end of the melt-carrying tube 8, and the two damping springs 403 respectively drive the two semicircular sealing plates 402 to reset, so that the semicircular sealing plates 402 can be reused to avoid loss, and then the user can use the operating rod to take out the melt-carrying tube 8 and replace the fuse.

Claims

1. An ejection fuse, comprising a plurality of fuse bodies (1), characterized in that: A fire extinguishing mechanism (5) is provided on one side of the plurality of fuse bodies (1), the fire extinguishing mechanism (5) comprising a branch pipe (501), an output pipe (502), a fire extinguishing dry powder storage box (509), a pneumatic pump (504) and a nozzle (505), a feed pipe (503) is fixedly connected to one side of the top of the fire extinguishing dry powder storage box (509), an input pipe (506) is fixedly connected to the top of the fire extinguishing dry powder storage box (509), a pneumatic pump (504) is fixedly connected to the top of the input pipe (506), and an output end of the pneumatic pump (504) is fixedly connected to the output pipe (502).

2. The ejection fuse according to claim 1, characterized in that: One end of the output pipe (502) is fixedly connected to a branch pipe (501), one side of the branch pipe (501) is fixedly connected to a plurality of nozzles (505), one side of the middle of the fire extinguishing dry powder storage box (509) is fixedly connected to a smoke switch (507), the other side of the middle of the fire extinguishing dry powder storage box (509) is fixedly connected to an audible and visual alarm (508), and the smoke switch (507) is electrically connected to the pneumatic pump (504) and the audible and visual alarm (508).

3. The ejection fuse according to claim 1, characterized in that: A mounting plate (6) is provided on the other side of the plurality of fuse bodies (1), and two L-shaped fixing rods (7) are fixedly connected to the bottom end of the mounting plate (6), and one end of the two L-shaped fixing rods (7) is fixedly connected to a side wall of the fire extinguishing dry powder storage box (509).

4. The ejection fuse according to claim 1, characterized in that: The top ends of the plurality of fuse bodies (1) are all fixedly connected with lead-in wires (2).

5. The ejection fuse according to claim 1, characterized in that: A lead wire (3) is fixedly connected to the bottom of one side wall of each of the plurality of fuse bodies (1), and a fuse-carrying tube (8) is disposed inside each of the plurality of fuse bodies (1).

6. The ejection fuse according to claim 1, characterized in that: A fuse protection mechanism (4) is provided at the bottom of each of the plurality of fuse bodies (1), the fuse protection mechanism (4) comprising a protection seat (401), a semicircular sealing plate (402) and a damping spring (403), and the inner wall of the protection seat (401) is rotatably connected to two semicircular sealing plates (402).

7. The ejection fuse according to claim 6, characterized in that: The bottom ends of the two semicircular sealing plates (402) are fixedly connected to damping springs (403), and the bottom ends of the two damping springs (403) are fixedly connected to two sides of the inner wall of the protective seat (401).

8. The ejection fuse according to claim 6, characterized in that: The top end of the protection seat (401) is fixedly connected to the bottom end of the fuse body (1).

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