CN211455638U - Windproof drop-out fuse - Google Patents

Abstract

The utility model discloses a fuse falls in windproof type relates to electrical equipment technical field, has solved the fuse tube antiwind ability among the prior art poor, the easy technical problem who falls. The technical characteristics are that the device comprises a lower bracket, wherein the lower bracket is connected with a telegraph pole in a rotating way and is fixedly connected with the lower part of a fuse tube; the upper gland is buckled above the fuse tube; the clamp holder is fixedly installed with the telegraph pole, and a windshield is arranged at the clamping end of the clamp holder; wherein, the upper gland is also provided with a clamping plate; when the clamping device works, the clamping plate is clamped by the clamp. The fuse tube has the beneficial effects of strong wind resistance and difficulty in falling.

Description

Windproof drop-out fuse

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to prevent wind type and fall fuse.

Background

A drop-out fuse (also called a drop fuse) is a protection switch integrating functions of overcurrent, short circuit and isolation circuit, which is most commonly used for distribution line branches and distribution transformers. The device has the characteristics of economy, convenience in operation, reliability in protection, strong adaptability to outdoor environment and the like, and is widely applied to the primary side of the distribution transformer for protection and equipment switching operation. The various types of fall insurance currently sold in the market have more or less defects and shortcomings in practical application. The fuse mainly shows that the fuse has poor wind resistance and is easy to fall.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the fuse tube among the prior art technical problem that the anti-wind ability is poor, easily fall, provide the type of preventing wind and fall the fuse.

In order to solve the technical problem, the technical scheme of the utility model is specifically as follows:

a wind-resistant drop fuse comprising:

the lower bracket is rotatably connected with the telegraph pole and fixedly connected with the lower part of the fuse tube;

the upper gland is buckled above the fuse tube;

the clamp holder is fixedly installed with the telegraph pole, and a windshield is arranged at the clamping end of the clamp holder;

wherein, the upper gland is also provided with a clamping plate;

when the clamping device works, the clamping plate is clamped by the clamp.

Furthermore, the inside of the clamp holder is a clamping surface;

when the clamping device works, the clamping surface of the clamping device is attached to the clamping plate and clamps the clamping plate.

Furthermore, the angle between the fuse tube and the horizontal plane is an acute angle.

The utility model discloses following beneficial effect has:

the utility model discloses a prevent wind type drop fuse, through setting up grip block and holder, at the during operation, the holder presss from both sides tight clamping face, and when the fuse tube fusing, the grip block moves along the holder, makes the fuse tube drop, and breaks away from with the holder; through setting up the windscreen, can make the wind-resistant ability of fuse stronger, be difficult for falling.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of the windproof drop-out fuse of the present invention;

FIG. 2 is a schematic view of the installation of the holder and the holding plate of the windproof drop fuse of the present invention;

fig. 3 is a schematic top view of the holder and the holding plate of the windproof drop fuse of the present invention.

The reference numerals in the figures denote:

1. a lower bracket; 2. a fuse tube; 3. a gland is arranged; 4. a holder; 5. a windshield; 6. and (4) clamping the plate.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a wind-resistant drop fuse includes:

the lower bracket 1 is connected with the telegraph pole in a rotating way and fixedly connected with the lower part of the fuse tube 2;

the upper gland 3 is buckled above the fuse tube 2;

the clamp holder 4 is fixedly installed on the telegraph pole, and a windshield 5 is arranged at the clamping end of the clamp holder 4;

wherein, the upper gland 3 is also provided with a clamping plate 6;

in operation, the clamping plate 6 is clamped by the clamp 4.

The working principle is as follows: when the fuse wire is fused by overload or short-circuit current, electric arcs are generated in the fuse wire tube 2, a large amount of gas is generated in the fuse wire tube 2 along with the electric arcs to form high pressure to cause strong longitudinal blowing, the force generated by the longitudinal blowing can enable the upper gland 3 to be communicated with the clamping plate 6 to move upwards along the clamp 4, so that the upper gland 3 is separated from the fuse wire tube 2, when the current passes zero, the electric arcs are extinguished due to the air blowing and dissociation removing effects, the fuse wire tube 2 falls under the action of self weight, an obvious isolation fracture is formed, and the circuit is disconnected; the integral safety is ensured; meanwhile, in order to prevent external wind from influencing the normal work of the fuse tube 2, the windshield 5 is arranged, the windshield 5 can reduce the influence of the external wind on the upper gland 3, the clamp 4 can stably and reliably clamp the clamping plate 6, and the normal operation of a circuit system is ensured.

The inside of the clamp 4 is a clamping surface;

when the clamping device works, the clamping surface of the clamp 4 is attached to the clamping plate 6 and clamps the clamping plate 6.

The working principle is as follows: the clamping plate 6 is attached to the holder 4 in a face-to-face mode, normal current work is guaranteed, meanwhile, due to face-to-face contact, the clamping plate 6 can move along the clamping face in the holder 4 when the vertical blowing is conducted, no obstacle exists in the middle of the vertical blowing, smooth movement of the clamping plate 6 is guaranteed, and the upper gland 3 is enabled to be smoothly separated from the fuse tube 2.

The angle of the fuse tube 2 to the horizontal plane is an acute angle.

The working principle is as follows: after the upper gland 3 is separated from the fuse tube 2, the fuse tube 2 can rotate around the rotating shaft of the lower support 1 by means of self gravity, the fuse tube 2 and the upper gland 3 cannot be continuously adhered, rapid separation is guaranteed, and safety of the whole power system is improved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. 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 obvious variations or modifications therefrom are within the scope of the invention.

Claims (3)

1. Prevent wind type drop fuse, its characterized in that includes:

the lower support (1) is connected with the telegraph pole in a rotating mode and fixedly connected with the lower portion of the fuse tube (2);

the upper gland (3), the said upper gland (3) is buckled above the fuse tube (2);

the clamp holder (4), the clamp holder (4) is fixedly installed with the telegraph pole, and a windshield (5) is arranged at the clamping end of the clamp holder (4);

wherein the upper gland (3) is also provided with a clamping plate (6);

when the clamping device works, the clamping plate (6) is clamped by the clamp (4).

2. A storm drop fuse as claimed in claim 1 wherein the interior of the holder (4) is a holding face;

when the clamping device works, the clamping surface of the clamping device (4) is attached to the clamping plate (6) and clamps the clamping plate (6).

3. A storm drop fuse as claimed in claim 2 wherein the fuse tube (2) is at an acute angle to the horizontal.

Images