CN204369554U - A kind of exhaust funnel that refuels - Google Patents

Abstract

The utility model discloses a refueling and exhausting funnel, which is characterized in that the outer wall of the funnel has a groove, the groove spirally extends from the lower mouth of the funnel to the upper mouth of the funnel, the inner wall of the funnel has a ventilation pipe, and the ventilation pipe From the bottom of the inner wall of the funnel to the top of the inner wall of the funnel, there are multiple grooves arranged at equal intervals. When refueling, the application of the utility model can realize refueling and container exhaust at the same time, ensure the pressure balance inside and outside the container, realize a stable refueling speed, avoid the occurrence of fuel injection, improve refueling efficiency, and shorten refueling time. The structure is simple and practical, and the production is simple.

Description

A refueling exhaust funnel

technical field

The utility model belongs to the field of refueling and relates to a refueling exhaust device.

Background technique

Due to the long-term use of transformers, oil shortages often occur due to various reasons. When using a traditional funnel to refuel the transformer, since the transformer refueling port is small, the funnel cup holder is placed on the refueling port, covering the refueling port, leaving only the funnel mouth, and the lower port of the funnel is small, while refueling, the transformer The gas inside the oil conservator can only be exhausted from the funnel opening, that is, the oil filling channel and the exhaust channel share the funnel opening. When the gas is discharged, the speed of oil flowing into the oil conservator will be slowed down, and the refueling time will be prolonged. When the oil conservator inside the transformer When the gas cannot be discharged in time, it will cause the internal pressure of the oil conservator to increase, causing the oil to fail to flow into the oil conservator. When the gas in the transformer oil conservator cannot be discharged and the pressure increases to a certain extent, oil injection often occurs, and the transformer oil will be sprayed to the work The refueling time is also extended on the personnel, and the transformer is generally suspended in the air, and it is higher than the ground, mostly more than 2 meters. Falling danger, low work efficiency.

Utility model content

The technical problem to be solved by the utility model is to provide a refueling and exhaust funnel, which can be placed on the transformer refueling port stably and symmetrically, so that refueling is smooth, the flow rate is uniform and fast, and no fuel is sprayed.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a refueling and exhausting funnel, which is characterized in that the outer wall of the funnel has a spiral groove, and the spiral groove extends from the lower mouth of the funnel to the bottom of the funnel. Upper exit. Because the groove is spiral, the funnel can be placed on the mouth of the container stably and symmetrically. When refueling, the gas in the container can enter from the groove of the lower mouth of the funnel, and reach the contact port between the funnel and the container along the spiral groove. The outlet of the type groove is exhausted to the atmosphere, which ensures the pressure balance inside and outside the container, prevents the occurrence of air resistance, and realizes smooth, stable and fast refueling, and the oil flow rate is uniform.

Further, a ventilation tube is provided on the inner wall of the funnel, and the ventilation tube communicates from the bottom of the funnel to the top of the funnel. The provision of a vent tube provides another venting channel for the container, preventing poor exhaust caused by a groove that is too small or blocked.

Further, the spiral groove extends from the lower mouth of the funnel to the top of the funnel.

Preferably, there are multiple spiral grooves arranged at equal intervals.

Preferably, the ventilation tube is a rubber tube, the rubber tube is bonded to the inner wall of the funnel, the upper end of the rubber tube protrudes from the upper opening of the funnel, and the lower end of the rubber tube is flush with the lower opening of the funnel.

The beneficial effect of adopting the above technical solution is that the refueling and exhaust funnel has a refueling channel and an exhaust channel at the same time, when the refueling and exhaust funnel is placed on the refueling port, the container can be removed through the exhaust channel while refueling The gas inside makes the pressure balance inside and outside the container, the oil flow rate is uniform when refueling, no oil is sprayed, the refueling efficiency is improved, and the refueling time is shortened. The structure of this device is simple and practical, and it is easy to manufacture.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of part planing of the utility model embodiment 2;

1. Funnel; 2. Spiral groove; 3. Ventilation pipe;

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Detailed ways

Example 1

A refueling and exhaust funnel, the outer wall of the funnel 1 has a spiral groove 2, and the spiral groove 2 spirally extends from the lower mouth of the funnel 1 to the upper outlet of the funnel 1, and there are 3 spiral grooves 2, etc. The spacing is arranged symmetrically. Put the refueling and exhaust funnel into the transformer refueling port. When refueling, the oil flows into the transformer oil conservator from the funnel port, and the air in the transformer conservator can be discharged from the transformer conservator through the spiral groove 2 of the funnel, connecting to the atmosphere, so that the inside and outside of the container The pressure is balanced, the oil flow rate is uniform when refueling, no oil is sprayed, the refueling efficiency is improved, and the refueling time is shortened. The structure of this device is simple and practical, and it is easy to manufacture.

Example 2

A refueling and exhaust funnel, the outer wall of the funnel 1 has a spiral groove 2, the spiral groove 2 spirally extends from the lower mouth of the funnel 1 to the upper mouth of the funnel 1, and there are 3 spiral grooves 2, etc. The spacing is symmetrically arranged, the funnel inner wall of the funnel 1 is provided with an exhaust pipe 3, the upper end of the exhaust pipe 3 stretches out from the upper opening of the funnel 1, and the lower end of the exhaust pipe 3 is flush with the lower opening of the funnel 1. Put the refueling and exhaust funnel into the transformer refueling port. When refueling, the oil flows into the transformer oil conservator from the funnel port, and the air in the transformer conservator can be discharged from the transformer conservator through the spiral groove 2 of the funnel to connect to the atmosphere; The lower port of the air pipe 3 enters and is discharged into the atmosphere through the exhaust pipe 3. The exhaust pipe 3 is a rubber pipe, which is bonded to the inner wall of the funnel 1 . The two ventilation methods make the pressure inside and outside the container balanced, the oil flow rate is uniform when refueling, no oil is sprayed, the refueling efficiency is improved, and the refueling time is shortened. The structure of the device is simple and practical, and the manufacture is simple.

Claims (5)

1. A refueling and exhaust funnel, characterized in that the outer wall of the funnel (1) has a spiral groove (2), and the spiral groove (2) extends from the lower mouth of the funnel (1) to the funnel (1) the upper exit. 2. A refueling and exhaust funnel according to claim 1, characterized in that a vent pipe (3) is provided on the inner wall of the funnel (1), and the vent pipe (3) communicates from the bottom of the funnel (1) to the top of the funnel (1). 3. The refueling and exhausting funnel according to claim 1, characterized in that the spiral groove (2) extends from the lower mouth of the funnel (1) to the top of the funnel (1). 4. The refueling and exhaust funnel according to claim 1, characterized in that the spiral grooves (2) are multiple and arranged at equal intervals. 5. A refueling and exhaust funnel according to claim 2, characterized in that the ventilation pipe (3) is a rubber tube, the rubber tube is bonded to the inner wall of the funnel (1), and the upper end of the rubber tube protrudes out of the funnel (1) The upper opening, the lower end of the rubber tube is flush with the lower opening of the funnel (1).